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Parts and Functions

Rovema VPK Operators Manual

3/2000 VPK REV(B) PANELVIEW 600

3-25

Horizontal Sealing Device

Jaw Assemblies

The jaw assemblies create horizontal seals in the film tube. Seal are

created when the front and back sides of the film tube are pressed

together and heated for a period of time. The heat causes the inner

film layer to melt and the pressure causes the two sides of the inner

film layer to mix and form a bond (seal).

There are two jaw assemblies; a front jaw assembly and a rear jaw

assembly. The assemblies are identical except that the front jaw houses

the knife assembly and the rear jaw is fitted with alignment screws.

Both jaws consist of: a c-frame, a jaw carrier, jaw springs, and a jaw

body.

Figure 3.24

Shows how the sealing jaws create seals.

Jaw Body

C-Frame

Jaw Carrier

Summary of Contents for VPK Series

Page 1: ...VPK Operations Manual ...

Page 2: ...ne Setup Procedures n Operation Procedures n Working with Components n Changeover Procedures n Maintenance Procedures n Troubleshooting Procedures n Appendix Setup of Auxiliary Equipment How to Use this Manual There are several ways to find information in this manual n The Table of Contents lists the chapters and sections of the manual and their corresponding page numbers n The header at the top o...

Page 3: ...r Safety 2 6 Operator Safety Guidelines 2 6 Lockout Procedures 2 7 Air Supply Lockout 2 7 Power Lockout Procedure 2 8 Parts and Functions 3 1 Film Carriage 3 2 Film Spindle 3 3 Dancer Assembly 3 4 Film Unwind Brake 3 5 Film TrackingAssembly 3 6 Touchscreen Controls 3 7 Out of Film Sensor Assembly 3 8 Guide Rollers 3 9 Film Feeding Device 3 10 BeltsAssemblies 3 11 Drive System 3 12 Engage Retract D...

Page 4: ...ies 3 25 Jaw Body 3 26 C Frames Jaw Carriers and Jaw Springs 3 27 Seal Pressure 3 28 Drive System 3 29 Touchscreen Controls 3 30 Knife Assembly 3 31 Touchscreen Controls 3 32 Temperature Controllers 3 33 Registration Sensor 3 34 Touchscreen Controls 3 35 Pneumatics System 3 36 Primary Manifold 3 37 Pressure Switch 3 38 Horizontal and Vertical Cooling Devices 3 39 Vacuum System 3 40 Solenoid Bank 3...

Page 5: ...ons 4 1 Forming Cycle 4 2 Timing Chart 4 3 Heat Sealing 4 4 Vertical Sealing Cycle 4 5 Horizontal Sealing Cycle 4 6 Film Registration 4 7 Operator Controls 5 1 Operator Interface 5 2 Touchscreen Display and Function Keys 5 3 Numeric Keypad and Arrow Keys 5 4 Operations Screen 5 6 MOVE FILM Switch 5 7 JOGGING SELECT Switch 5 7 BELTS Switch 5 8 HEAT Switch 5 8 FEEDER Switch 5 8 LENGTH Switch 5 9 SPE...

Page 6: ...16 JAW PROFILE Switch 5 16 Jaw Profile Settings Screen 5 17 AUTO MAN Switch 5 17 Postseal Angle and Postseal Time Settings 5 17 Preseal Time Setting 5 17 Feeder Screen 5 18 Printer Screen 5 20 Vertical Seal Screen 5 21 Photoeye Screen 5 22 Stabilo Seal Screen 5 23 Recipe Management Screen 5 24 Recipe Load Selection Screen 5 25 Recipe Save Selection Screen 5 26 Alarms Screen 5 27 Temperature Contro...

Page 7: ...ion 6 12 Positioning the Automatic Film Tracking Sensors 6 13 Registration Sensor Setup 6 14 Sensor Setup for Non Registered Film 6 15 Sensor Setup for Registered Film 6 16 Window In and Offset In Settings 6 17 Determining the Window In Value 6 18 Determining the Offset In Value 6 19 Operating Procedures 7 1 Start Up 7 2 Preparing the Bagmaker 7 3 Making Empty Bags 7 4 Making Filled Bags 7 6 Check...

Page 8: ...tridges and Temp Probes 8 2 Horizontal sealing Jaws 8 2 Vertical Sealing Device 8 5 Replacing the Film Feed Belts 8 7 Replacing the Cutting Knife 8 8 Aligning the Forming Set 8 9 Aligning the BeltAssemblies 8 10 Changeover Procedure 9 1 Maintenance Procedures 10 1 Daily Cleaning 10 2 Daily Maintenance 10 3 Weekly Maintenance 10 4 Troubleshooting Guide 11 1 ...

Page 9: ...products into bags It forms fills and seals bags by forming flat packaging material into a tube sealing the edges and bottom of the tube filling the tube with product cutting the tube to length and sealing the top of the tube The bagmaker can be equipped with a number of options that can change a bag s shape or print information on a bag Figure 1 1 Shows the standard VPK 260 bagmaker ...

Page 10: ...tor s Manual 3 2000 VPK REV B PANELVIEW 600 2 1 Safety Instructions This section contains information on machine safety issues These issues include n Bagmaker Safety Devices n Component Safety n Operator Safety n Machine Lockout Procedure ...

Page 11: ...push button and safety labels Guard Doors The guard doors isolate the operator from the forming and sealing area The doors are also equipped with a switch that causes the machine to stop when they are opened Figure 1 2 Shows the front guard door switch If your machine is equipped with a side guard door there will be a similar switch attached to it Door Switch ...

Page 12: ...GENCY STOP Push Button The EMERGENCY STOP push button causes the bagmaker to immediately stop operating if pushed This push button should be used when there is perceived or actual damage occurring to the bagmaker or to an operator Figure 2 3 Shows the EMERGENCY STOP push button EMERGENCY STOP Push Button ...

Page 13: ... hazard These labels appear at various places on the machine Look for these labels read them and follow their instructions Figure 2 4 The two top labels indicate areas of the bagmaker that could burn you if touched The two bottom labels indicate areas of the bagmaker that could break a limb DANGER PINCH POINTS WATCH YOUR HANDS CAUTION HOT SURFACE DO NOT TOUCH ...

Page 14: ...ifications to the VPK bagmaker without explicit authorization Only original Rovema spare parts and accessories should be used on the bagmaker This ensures that the machine will perform safely and as designed The user must confirm that the wrapping material film will not produce harmful gases during sealing The film supplier should provide such assurances ...

Page 15: ...d have become thoroughly familiar with them 2 Do not wear rings loose jewelry or loose clothing while operating the bagmaker 3 Secure long hair under a hair net or bump cap while operating the bagmaker 4 Follow the lockout procedure before performing any cleaning maintenance or repairs on the bagmaker 5 Never use the MAIN DISCONNECT switch to stop the bagmaker 6 Do not remove the guards or open do...

Page 16: ... This section describes procedures that should be used to lockout the air and power supplies Air Supply Lockout Use the following procedure to lockout the air supply 1 Raise the AIR DISCONNECT lever to its horizontal position to disable the air supply to the machine 2 Remove the lever from the inlet valve Figure 2 7 Shows how to disable the bagmaker s air supply and how to remove the AIR DISCONNEC...

Page 17: ... DISCONNECT switch 4 Place a lockout tag through the hole in the lockout handle 5 Place a pad lock through one of the holes in the lockout tag 6 Attempt to start the bagmaker by turning the MAIN DISCONNECT switch to the ON position If the MAIN DISCONNECT switch will not turn to the ON position then the lockout procedure was successful If the switch will turn to the ON position then the lockout pro...

Page 18: ...s and Functions This section describes the major parts and functions of the VPK vertical bagmaker These parts include the n Film Carriage n Film Feeding Device n Forming Set n Vertical Sealing Device n Horizontal Sealing Device n Registration Sensor n Pneumatics System n Optional Equipment ...

Page 19: ...terial that the bagmaker uses to form bags It includes a n Film Spindle n Dancer Assembly n Film Unwind Brake n Film Tracking Assembly n Out of Film Sensor Assembly n Guide Rollers Figure 3 1 Shows the components of the film carriage Dancer Assembly Guide Roller Film Spindle Out of Film Sensor Assembly Film Unwind Brake Assembly Film Tracking Assembly ...

Page 20: ...is partially enclosed within a metal housing The housing has slots that allow sections of the air bladder to protrude through it When the bladder is inflated it protrudes through the slots and presses against the inside of the film core holding the film on the spindle The bladder is inflated and deflated through the air valve located in the end of the spindle Figure 3 2 Shows the film spindle Air ...

Page 21: ...etween the fixed roller and the arm rollers As film is pulled out of the film carriage during bag forming the film loop pulls the dancer arms upward and tensions the arm springs The tensioned springs cause the dancer arm assembly to push downward on the film loop This prevents any slack from forming in the loop Note Slack in the film web causes film registration and film tracking problems Figure 3...

Page 22: ...ttached to the film spindle and a brake pad assembly that is actuated by the dancer assembly As the dancer assembly rises during bag forming it moves the brake pad away from the brake drum allowing the film roll to unwind When bag forming stops the dancer assembly lowers and press the brake pad against the brake drum stopping the film roll from unwinding Figure 3 4 Shows the film unwind brake Brak...

Page 23: ...upper and lower sections of the film carriage towards either side of the forming collar The limit switches limit the movement of the film carriage to just a few inches You will make film tracking adjustments to align the edges of the film tube vertical seal It is best if you make your adjustments while jogging the film feeding device or while running the bagmaker in automatic mode This will allow ...

Page 24: ...sing either of these switches will cause the film carriage to move except when the E STOP button is depressed The movements will be slow yet steady Figure 3 6 Shows the switches that control the film tracking position Allen Bradley PanelView 600 AB 7 4 1 8 5 2 9 6 3 0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 MOVE FILM HEAT V COOLING SETTINGS JOG SELECT LENGTH F9 LEFT F6 RIGHT F7 FILM F10 MENU F1 ACT POSITIO...

Page 25: ...lags that are connected to the dancer arms When the film roll is exhausted the dancer arms fall to the bottom of the film carriage and rotate the upper flag in front of the proximity sensor This signals the bagmaker to stop forming bags When the film tension is too high the film loop pulls the dancer arms to the top of the film carriage and rotates the lower flag in front of the sensor This also s...

Page 26: ...the forming collar The last set of rollers before the collar setup rollers are adjustable These rollers change the angle of the film web to match the angle of the forming collar When these angles do not match the film web tends to bind as it moves over the collar Figure 3 8 Shows how the setup rollers adjust the angle of the film to match the angle of the forming collar Adjustment Knob Setup Rolle...

Page 27: ... 3 10 Film Feeding Device The film feeding device pulls film from the film carriage and pushes it down the forming tube for sealing The device consists of two belts assemblies a drive system and an engage retract device Figure 3 9 Shows the film feeding device Film Feeding Device ...

Page 28: ...h holes in the feeding belts The suction produced by the vacuum increases the friction between the belts and the film tube while reducing the friction between the film tube and the forming tube You can adjust the amount of pressure that the belt assemblies apply against the forming tube with a pressure regulator and gauge located inside of the machine housing Figure 3 10 Shows a belt assembly with...

Page 29: ...s the film feed belts to push the film down the forming tube The system includes two motors one for each belt assembly and two servo amplifiers The servo amplifiers power the drive motors and operate them in synchronization Figure 3 11 Shows the film feeding servo motors and the servo amplifiers Film Feed Servo Motors Film Feed Servo Amps ...

Page 30: ...ce consists of two pneumatic cylinders a pressure regulator and a pressure gauge Use the pressure regulator and the pressure gauge to adjust and monitor the belt pressure You will retract the film feeding device before you thread film through the bagmaker or before you remove the forming set You will engage the device when you want to form bags or simply advance film down the forming tube Figure 3...

Page 31: ...CLOSED the belts move against the forming tube You will need to open the belts to remove the forming set or thread film past the belts You will need to close the belts when you want to jog the machine or forming bags Figure 3 13 Shows the bagmaker s main menu screen and the BELTS OPEN CLOSED switch Allen Bradley PanelView 600 AB 7 4 1 8 5 2 9 6 3 0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 MOVE FILM HEAT V C...

Page 32: ...o the bags Embedded in the center of the forming tube is a silicon strip The strip ensures that the vertical sealing band makes full contract with the film Covering the strip is a piece of Teflon tape The tape isolates the forming tube from the heat of the vertical sealing device The securing knobs hold the forming set to the machine frame The forming set is a changeover item Each bag style requir...

Page 33: ...aling Device The vertical sealing device joins the edges of the film tube together The device includes a seal band unit a drive system an engage retract device and a seal band support Figure 3 15 Shows the vertical sealing device Seal Band Unit Drive System Engage Retract Device Seal Band Support ...

Page 34: ...ds the film into a tube it turns a small portion of one edge inside out and lays the opposite edge over it When heat and pressure are applied to the overlapping sections for a certain amount of time they stick together Only the area under the sealing band is joined The seal band unit consists of a heating bar a sealing band a band sensor and a band release lever Figure 3 16 Shows the seal band uni...

Page 35: ...Unit Heating Bar The heating bar creates the heat needed to melt the inner film layer Within the bar are replaceable heating cartridges and a replaceable temperature probe Atemperature controller on the bagmaker s control panel controls the heating of the bar Figure 3 17 Shows the heating bar Heating Bar Heating Element ...

Page 36: ...and Release Lever The sealing band transfers heat from the heating bar to the film tube The band sensor causes the bagmaker to stop forming bags if the band breaks The band release lever removes tension from the band so that it can be removed Figure 3 18 Shows the sealing band the band sensor and the band release lever Band Sensor Release Lever Sealing Band ...

Page 37: ...eps the band stationary with respect to the film and prevents the band from wrinkling the film The system includes anAC drive motor a speed controller and a gear box The speed controller receives a signal from the motion controller to synchronize the movement of the sealing band to the movement of the film feeding belts Figure 3 19 Shows the vertical sealing drive system AC motor Speed Controller ...

Page 38: ...ic cylinder to perform the engage and retract movements Settings on the touchscreen control the timing of the movements A pressure regulator and gauge located inside of the machine housing control the sealing pressure produced by the device The tilt adjustment screws adjust the sealing band unit parallel to the forming tube Figure 3 20 Shows the engage retract device Vertical Sealing Pressure Adju...

Page 39: ...lled by a switch on the touchscreen display The device is timed to engage the film ms before the film feeding device begins advancing the film and to retract from the film ms after the film stops moving This allows sufficient sealing time for the film located in front of the sealing band Figure 3 21 Shows the vertical seal screen VERTICAL SEAL V SEAL IN DELAY ms V SEAL OUT DELAY ms ...

Page 40: ...levers and lateral adjustment bolts Loosen the position locking levers to change the distance between the sealing band and the forming tube Loosen the pivot locking levers to swing the unit away form the forming tube without changing its distance from the tube Loosen the lateral adjustment bolts to center the sealing band on the desired sealing area Figure 3 22 Shows the seal band support Position...

Page 41: ... and pressure for a certain amount of time The heat and pressure are created by the sealing jaws The time is controlled by the speed of the drive system The horizontal sealing device consists of a front and rear jaw assembly a drive system and a knife assembly Controls for the device are accessed through the touchsrceen display and from the temperature controllers all located on the bagmaker contr...

Page 42: ...f time The heat causes the inner film layer to melt and the pressure causes the two sides of the inner film layer to mix and form a bond seal There are two jaw assemblies a front jaw assembly and a rear jaw assembly The assemblies are identical except that the front jaw houses the knife assembly and the rear jaw is fitted with alignment screws Both jaws consist of a c frame a jaw carrier jaw sprin...

Page 43: ...laceable heating cartridge and a replaceable temperature probe Both the cartridges and the probe are connected to a temperature controller on the bagmaker control panel The face of the jaw body shows the jaw body profile The profile is the impression that the jaw leaves in the film The profile increases the strength of the seal and improves its appearance Note Remove the terminal housing cover to ...

Page 46: ...aws D Motion It is this motion that causes the sealing jaws to open and close around a bag The system includes a servo motor a servo amplifier gearing and crank arms The servo motor turns the gearing which turns the crank arms The rotating crank arms cause the jaws to open and close Figure 3 28 Shows how the opening and closing motion of the jaws is formed D Motion Crank Arm ...

Page 47: ...es how fast the jaws move through the sealing portion of the D Motion path The preseal setting determines the speed of the jaws as they close on the film tube The postseal time and post seal angle settings determine the speed of the jaws as they move away from the filled bag Figure 3 29 Shows the jaw profile and jaw seal settings screens MAIN MENU F1 JAW SEAL MENU F7 SETTINGS MENU F2 JAW PROFILE S...

Page 48: ...bly cuts the bags from the film tube It is housed between the upper and lower sections of the front jaw assembly Whenthe sealing jaws close the knife extends to cut through the film It is powered by a pneumatic cylinder The timing of the cut is controlled by a switch on the touchscreen Figure 3 30 Shows the knife assembly Pneumatic Cylinder ...

Page 49: ...n the touchscreen controls the movements of the cutting knife This switch determines when the knife can extend and cut a bag from the film tube and whether the knife will be used during bag production Disabling the knife during bag production creates a continuous string of bags Figure 3 31 Shows the KNIFE switch KNIFE ENABLED F3 CAM OFF F5 CAM ON F4 SWITCH ...

Page 50: ...e is one controller for each jaw assembly The controller applies full voltage to the heating cartridges until the set sealing temperature is reached Then it cuts the power to the cartridges While the temperature controller is on it continually turns the power to the heating cartridges on and off to maintain the set temperature Figure 3 32 Shows the temperature controllers for the horizontal sealin...

Page 51: ...the printed sections and position them relative to the horizontal sealing device The bagmaker detects the location of the printed sections by detecting marks registration marks printed at the edge of the film web Once the bagmaker has referenced the film it can position the film to be sealed at any location In order for the sensor to detect the registration marks the lens of the sensor must be pos...

Page 52: ...m the sensor this prevent false readings created by artwork printed around the registration marks The OFFSET IN switch offsets the sealing operation when the registration marks are not located at the desired sealing location The ENABLE DISABLE switch determines if the bagmaker can us the sensor during bag forming Note The ENABLE DISABLE switch must be set to DISABLE when the bagmaker is using non ...

Page 53: ...rols the compressed air supply to the bagmaker The system distributes compressed air to the bagmaker s pneumatic cylinders the vacuum generator and the cooling devices The system includes a primary manifold and an air filter regulator Figure 3 35 Shows the pneumatics system The air filter regulator is located on the film carriage ...

Page 54: ...Pneumatics System Primary Manifold The primary manifold distributes compressed air to the horizontal and vertical cooling devices the vacuum system and the solenoid bank A pressure switch is also connected to the primary manifold Figure 3 36 Shows the primary manifolds Primary Manifold ...

Page 55: ...it the switch signals the bagmaker to stop forming bags and to display the LOW AIR PRESSURE alarm message on the touchscreen Once the air pressure is restored and the ALARM RESET switch is pressed on the touchscreen the alarm will be cleared The low air pressure limit is typically set around 60 PSI The limit is set using the knob on top of the pressure switch Figure 3 37 Shows the pressure switch ...

Page 56: ...ontal cooling device is a pressure regulator with a pressure gauge The amount of horizontal cooling is set using the regulator s adjustment knob The pressure gauge allows for precise adjustments The valve for the vertical sealing device is a flow control valve The amount of vertical cooling is set using the valve s adjustment knob Note There is no pressure gauge for the vertical cooling device bec...

Page 57: ...ge The vacuum generator uses compressed air to generate a vacuum The vacuum is directed through the air filter past the vacuum gauge and to the film feeding belt assemblies The air filter removes film debt from the system The gauge is used to verify that the system is functioning properly When the system is functioning properly the gauge should read above 10 Hg 20 Hg for 360 models Figure 3 39 Sho...

Page 58: ...600 3 41 Pneumatics System Solenoid Bank The solenoid bank supplies compressed air to all of the bagmaker s pneumatic cylinders The PLC activates each solenoid valve in the bank at a specific time to perform a forming operation Figure 3 40 Shows the solenoid bank Solenoid Bank ...

Page 59: ... B PANELVIEW 600 3 42 Optional Equipment Optional equipment enhances the capabilities of the bagmaker This equipment includes n Bevel Plates n Bag Grippers n Foam Deflators n Splice Table n Automatic Film Tracking Sensor n Gusseting Device n STABILO Sealing System ...

Page 60: ...s pinch the film tube above and below the horizontal sealing jaws This allows the seals to be created in a stress free environment Foam Deflators Foam deflators push the air out of the bags to prevent them from bursting when the bag grippers pinch the film tube closed They are positioned slightly ahead of the bag grippers So before the bag grippers close the foam deflators push the excess air in a...

Page 61: ...of film the out of film sensor causes the bagmaker to stop forming bags and it triggers the automatic clamping bar to grab the film end before it leaves the film carriage Once a new roll of film is loaded on the film carriage and threaded up to the splice table the manual clamping bar is used to hold the end of the new film roll while the two film ends are taped together Figure 3 42 Shows the spli...

Page 62: ...eb inner sensor and one positioned just outside of the film web outer sensor If the film web drifts to the right and the inner sensor becomes unblocked the bagmaker moves the film carriage towards the left until the sensor is blocked again If the film web drifts to the left and the outer sensor becomes blocked the bagmaker moves the film carriage towards the right until the sensor is unblocked aga...

Page 63: ...hes on the touchscreen display determine when the bagmaker can perform automatic film tracking adjustments When the jaw drive encoder count is between the cam values the motion controller signals the PLC to perform any necessary film tracking adjustments Figure 3 44 Shows the film tracking screen AUTO FILM TRACKING ENABLED F6 CAM OFF F8 CAM ON F7 SWITCH ...

Page 64: ...NELVIEW 600 3 47 Optional Equipment Bag Shaping Devices The VPK bagmaker can be equipped with two devices that alter the shape of a bag a gusseting device and a STABILO sealing device Figure 3 45 Shows a flat bottom bag with gussets and STABILO seals Gusset STABILO Seal ...

Page 65: ...devices mechanical and pneumatic Both include gusset plows and gusset fingers The plows created folds in the bottom of the bags while the fingers created folds in the top of the bags The mechanical gusseting device is actuated by the crank arms The pneumatic gusseting device is actuated by air and is controlled by a switch on the touchscreen Figure 3 46 Shows a pneumatic gusseting device The gusse...

Page 66: ... Controls The touchscreen controls for the gusset device determine when the gusset plows and fingers will be extended to fold the film The device is timed so that the gusset folds are formed by the time the jaws touch Figure 3 47 Shows the gusset screen for a pneumatic gusseting device GUSSET ENABLED F3 CAM OFF F8 CAM ON F7 SWITCH ...

Page 67: ...nary sealing rail and a heated sealing jaw The sealing rails are positioned behind the corners of the film tube while the sealing jaws are positioned in front of the corners As the film moves down the forming tube to the sealing jaws it is pressed between the heated sealing jaw and the stationary sealing rail This creases the corners of the square film tube and creates the STABILO SEAL Figure 3 48...

Page 68: ...Device Touchscreen Controls The sealing system has two switches on the touchscreen display The HEAT switch toggles the power to the STABILO temperature controllers on and off The SEAL switch enables and disables the system ENABLED F6 ENABLED F7 STABILO SEAL HEAT SWITCH SEAL SWITCH Figure 3 49 Shows the STABILO SEAL screen ...

Page 69: ... VPK Operator s Manual 3 2000 VPK REV B PANELVIEW 600 4 1 Theory of Operations This section describes the theory behind the forming cycle heat sealing the vertical sealing cycle the horizontal sealing cycle and film registration ...

Page 70: ...der count is between a forming operation s on off cam values the motion controller signals the PLC to activate that operation The vertical sealing device engage retract movements and the product dump request are forming operations that do not rely on the encoder count The vertical sealing device engages the film tube a few milliseconds before the film feeding device starts advancing film and retra...

Page 71: ...Theory of Operations Rovema VPK Operator s Manual 3 2000 VPK REV B PANELVIEW 600 4 3 ...

Page 72: ...ermine the best sealing time The sealing pressure is set at the factory and should be sufficient for most heat sealing applications This leaves the sealing temperature setting as the most useful tool that the operator can use to affect the quality of the horizontal and vertical seals When adjusting the sealing temperature here are some facts to keep in mind The minimum temperature required to melt...

Page 73: ...s advancing film This allows sufficient sealing time for the film position in front of the sealing band When the device engages the film it presses the rotating sealing band against the overlapping sections of film Because the band and the film move at the same rate the band is always stationary with respect to the film This prevents the vertical sealing device from wrinkling the film When the fil...

Page 74: ...riers transfer this force to the jaw bodies The jaw bodies transfer the force to the film The heat and pressure cause the adhesive layer to hold the front and back sides the outer film layer together During the horizontal sealing cycle two other forming operations typically occur cutting and cooling Just as the sealing jaws close on the film tube the motion controller signals the PLC to activate t...

Page 75: ...ling jaws into the fully open position Once the film has been registered and the sealing jaws have been homed the bagmaker starts the forming cycle During the cycle it advances the film and times the sealing jaws to land on it after the bag length has been feed When this sealing location is not the desired sealing location the PHOTOEYE CORRECTION switch on the photoeye screen can make the bagmaker...

Page 76: ...Operator Controls This section describes the controls used to operate the bagmaker These controls include a touchscreen display temperature controllers a MAIN DISCONNECT switch an AIR DISCONNECT lever several push buttons and a selector switch Figure 5 1 Shows the main control panel ...

Page 77: ... The interface consists of a touchscreen display a numeric keypad a function keypad and arrow keys Figure 5 2 Shows the parts of the operator interface Allen Bradley PanelView 600 AB 7 4 1 8 5 2 9 6 3 0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 MOVE FILM HEAT V COOLING SETTINGS JOG SELECT LENGTH F9 LEFT F6 RIGHT F7 FILM F10 MENU F1 ACT POSITION SPEED F8 ENABLED F4 DISABLED F5 FEEDER BELTS DISABLED F2 CLOSED ...

Page 78: ...ate additional screens or display information Both the touchscreen and the function keys are used to select a machine function A function is selected by pressing its colored touchcell or by pressing its corresponding function key Figure 5 3 Shows the touchscreen and the function keys Allen Bradley PanelView 600 AB 7 4 1 8 5 2 9 6 3 0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 MOVE FILM HEAT V COOLING SETTINGS...

Page 79: ...alue before pressing the ENTER key press the ESC key until the value has been deleted from the input dialog box The ESC key can also be used to abort a value change To abort a value change simply press the ESC key until the input dialog box disappears Figure 5 4 Shows how to enter function values Allen Bradley PanelView 600 AB 7 4 1 8 5 2 9 6 3 0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 MOVE FILM HEAT V COO...

Page 80: ...ugh a list of product recipes to load or save They are also used to change the name of a product recipe Note The LEFT and RIGHT arrow keys are not used Figure 5 5 Shows how the up and down arrow keys are used Allen Bradley PanelView 600 AB 7 4 1 8 5 2 9 6 3 0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 MAIN MENU F1 CURRENT LOADED SETTINGS MENU F2 SELECT RECIPE TO LOAD NEW RECIPE LOADED 1 2 3 4 5 6 7 8 9 10 11 ...

Page 81: ...een include the n MOVE FILM Switch n JOG SELECT Switch n HEAT Switch n FEEDER Switch n BELTS Switch n LENGTH Switch n SPEED Switch n SETTINGS Switch n ACT POSITION Display Figure 5 6 Shows the operations screen Allen Bradley PanelView 600 AB 7 4 1 8 5 2 9 6 3 0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 MOVE FILM HEAT V COOLING SETTINGS JOG SELECT LENGTH F9 LEFT F6 RIGHT F7 FILM F10 MENU F1 ACT POSITION SPEED...

Page 82: ... Use this switch to select the machine jogging mode Press this switch to toggle between FILM JAWS FWD and JAWS REV When this switch is set to FILM and the JOG RUN push button is press the film feeding device will advance film down the forming tube without running the horizontal sealing device When this switch is set to JAWS FWD and the JOG RUN push button is pressed the horizontal sealing device w...

Page 83: ... controllers on and off When this switch is set to ENABLED the temperature controllers turn on and the horizontal and vertical sealing devices heat When this switch is set to DISABLED the temperature controllers turn off and the sealing devices begin to cool Note This switch does not affect the temperature controllers for optional equipment i e zipper applicators These devices will have a separate...

Page 84: ...nput the desired bag length in millimeters SPEED Switch This switch sets the machine operating speed Pressing this switch displays a input dialog box Use the numeric keypad to input the desired operating speed in bags minute SETTINGS Switch The settings switch activates the settings screen Press this switch once to activate the settings screen ACT POSITION Display This cell displays the cycle posi...

Page 85: ...een contains switches that control forming operations recipe management and data monitoring Figure 5 7 Shows the settings screen PHOTOEYE MENU H COOL STABILO MENU PRINTER SETUP MENU V SEAL F TRACK MENU FEEDER KNIFE MENU CAM 9 CAM 10 MENU JAWS SETUP MENU MAIN MENU F1 RECIPE MENU F2 SERVICE MENU F3 ZIPPER SETUP MENU VIBRATOR DISCH MENU ...

Page 86: ...et for a forming operation the motion controller signals the PLC to initiate that operation Some cam settings have ENABLED DISABLED switches An ENABLED DISABLED switch tells the PLC whether or not a forming operation can be activated during bag forming So for example if you do not want the bag vibrator to vibrate the bags during bag forming set its ENABLED DISABLED switch to DISABLED Figure 5 8 Sh...

Page 87: ...energized cool air is released onto the horizontal seals Figure 5 9 1 Shows the horizontal cooling screen Vertical Cooling Settings if equipped These settings determines when the vertical cooling device can be activated to cool the vertical seal When the encoder count is between these settings the motion controller will signal the PLC to energize the vertical cooling solenoid valve When the valve ...

Page 88: ...d valve When the valve is energized the knife will cut across the film tube Figure 5 10 1 Shows the knife screen Film Tracking Settings These settings determine when the PLC can make automatic film tracking adjustments When the encoder count is between these settings the motion controller will signal the PLC to move the film carriage left or right to keep the edges of the vertical seal aligned Fig...

Page 89: ...rs as the bag is being cut from the film tube Figure 5 11 1 Shows the vibrator screen Bag Folder These settings determine when the bag folder can be extended to fold the bottom seal against the bottom of the bag When the encoder count is between these settings the motion controller will signal the PLC to energize the bag folder solenoid valve and the folder will extend Just as the sealing jaws clo...

Page 90: ...tomatic and manual When set toAUTO the bagmaker determines the seal time parameter When set to MAN the operator must determine the seal time parameter Note For most bagmaker applications set this switch to AUTO for the best results SET SEAL TIME Switch Seal time is the amount of time that the sealing jaws will stay in contact with the film tube to create horizontal seals Its value will depend on t...

Page 91: ...aster than the sealing jaws which expands the bags outward during filling Actual Seal Time Display This display cell shows the seal time value that the bagmaker calculates when theAUTO MAN SELECT switch is set toAUTO When theAUTO MAN SELECT switch is set to MAN it shows the value set for the SET SEAL TIME switch Figure 5 13 Shows the jaw seal settings screen JAW PROFILE Switch This switch displays...

Page 92: ...ings The postseal angle is the angle that the sealing jaws travel through after they have created a seal The postseal time is the amount of time the jaws have to travel through the postseal angle Together these two settings determine the speed of the jaws as they move away from the sealing area Preseal Time Setting The preseal time is the amount of time that the jaws have to move from the top of t...

Page 93: ...drop time setting synchronizes the release of product from the product feeder with the closing of the sealing jaws The motion controller is programmed so that ms before the horizontal sealing jaws close it signals the PLC to request a product drop from the product feeder By the time the product drop is requested and reaches the sealing jaws the jaws have closed and the product lands on top of them...

Page 94: ...he signal indicates that the feeder is not ready to release a product charge the bagmaker stops the forming cycle When Master Slave synchronization is used the bagmaker sends a dump request signal to the product feeder just before it is ready to make a bag If the feeder is ready to release a product charge it sends a dump confirmation signal to the bagmaker and then it releases a charge When the b...

Page 95: ...ring bag forming The OFFSET switch determines when the printer can be activated When the printer is enabled and after mm of film has been feed past the printer the motion controller will signal the PLC to activate the printer The CAM ON CAM OFF switch is only used when the zipper applicator has been physically removed from the bagmaker Note Please consult the Rovema Service Department before remov...

Page 96: ...hen the vertical sealing device will retract from the film tube The v seal in delay setting engages the device ms before the film starts moving and keeps it engaged until the STOP push button is pressed Once the film feeding device stops the v seal out delay setting keeps the vertical sealing device engaged for ms The delay settings allow the film directly in front of the sealing band sufficient s...

Page 97: ...registration sensor This prevents the sensor from detecting artwork that is printed in the same path as the registration marks The offset in setting offsets the sealing operation by millimeters When the bagmaker is not sealing the film at the correct location the offset in setting makes the bagmaker advance the film web to the correct sealing location before creating seals in the film tube Figure ...

Page 98: ...rols the operation of the STABILO SEAL sealing system The HEAT switch toggles the power to the stabilo temperature controls on and off The SEAL switch enables and disables the sealing system If you are not creating stabilo bags set this switch to DISABLED Figure 5 20 Shows the stabilo seal screen ENABLED F6 ENABLED F7 STABILO SEAL HEAT SWITCH SEAL SWITCH ...

Page 99: ...t recipes contain all of the settings required to form a particular bag style Note Before you are allowed to save a recipe you must enter a four digit password This prevents an unauthorized users from saving over a previously saved recipe Figure 5 21 Shows the recipe management screen MAIN MENU F1 SETTINGS MENU F2 RECIPE MANAGEMENT LOAD NEW RECIPE F3 LOAD F3 SAVE NEW RECIPE F4 ENTER THE FOUR DIGIT...

Page 100: ...g a recipe removes all of the current settings and replaces them with the new settings To load a recipe use the UP and DOWN arrow keys to scroll through and select a product recipe from the list Press the ENTER key to load the selected recipe Figure 5 22 Shows the recipe load selection screen MAIN MENU F1 CURRENT LOADED SETTINGS MENU F2 SELECT RECIPE TO LOAD NEW RECIPE LOADED 1 2 3 4 5 6 7 8 9 10 ...

Page 101: ...eviously save recipe name Use the UP and DOWN arrow keys to scroll through and select a previously save product recipe Press the ENTER key to save the current machine settings under the selected product recipe name Figure 5 23 Shows the recipe save selection screen MAIN MENU F1 RECIPE NAME F3 TO CHANGE RECIPE NAMES GOTO NAME EDIT SCREEN SETTINGS MENU F2 SELECT RECIPE TO SAVE NEW RECIPE SAVED 1 2 3...

Page 102: ...EAR ALARMS switch has been pressed the alarm or warning message will be cleared Note Alarm messages are conditions that prevent the bagmaker from forming bags Warning messages alert the operator to conditions that will eventually stop bag production Figure 5 24 Shows the alarms screen Allen Bradley PanelView 600 AB 7 4 1 8 5 2 9 6 3 0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 CLEAR ALARMS F1 SCALE NOT READY ...

Page 103: ...the power to the cartridges While the temperature controller is on it toggles the power to the heating cartridges on and off to maintain the sealing temperature Each controller includes a PV display an SV display a MODE key and two arrow keys The PV display shows the current sealing temperature The SV display shows the desired sealing temperature The arrow keys are used to set the sealing temperat...

Page 104: ...IN DISCONNECT Switch The MAIN DISCONNECT switch turns on or off all electrical power to the bagmaker Turn this switch to the ON position to connect power to the bagmaker Turn this switch to the OFF position to disconnect power to the bagmaker Figure 5 26 Shows the MAIN DISCONNECT switch ...

Page 105: ...NECT Lever The AIR DISCONNECT lever controls the flow of air to the bagmaker Move the lever to its vertical position to supply air to the machine Move the lever to its horizontal position to stop the supply of air to the machine Figure 5 27 Shows the AIR DISCONNECT lever in the closed position ...

Page 106: ...erating status of the machine When the button is continuously lit it indicates that the machine is ready to run When the button is flashing it indicates that the machine needs to perform a reference run When the button is not lit it indicates that there is an active alarm present Figure 5 28 1 Shows the SYSTEM READY push button JOG AUTO Selector Switch This two position selector switch determines ...

Page 107: ...elector switch is set to JOG press and hold the JOG RUN push button to jog the film drive or the jaw drive When the JOG AUTO selector switch is set toAUTO press and release the JOG RUN button to start bag forming Figure 5 29 1 Shows the JOG RUN push button STOP Push Button The STOP push button ends bag production at the end of the forming cycle Press this button once to stop the machine Figure 5 2...

Page 108: ...utton The EMERGENCY STOP push button immediately halts bag production without regard to the forming cycle Press the EMERGENCY STOP button once to immediately halt the machine This button should be pressed whenever there is perceived or actual damage occurring to personnel or to the machine Figure 5 30 Shows the EMERGENCY STOP push button ...

Page 109: ...rm bags These procedures include n Powering the Bagmaker n Loading a Product Recipe n Setting the Machine Speed and Bag Length n Installing the Forming Set n Loading a Film Roll n Threading a Film Roll n Vertical Seal Setup n Pneumatic Pressure Settings n Setting the Film Tension n Setting the Film Tracking Position n Positioning the Automatic Film Tracking Sensors n Registration Sensor Setup ...

Page 110: ...o power the bagmaker you must activate the electrical and pneumatic supplies To activate the electrical supply turn the MAIN DISCONNECT switch to the ON position To activate the pneumatic supply rotate the AIR DISCONNECT lever to the vertical position Figure 6 2 Shows the MAIN DISCONNECT switch and the AIR DISCONNECT lever ...

Page 111: ...s to select the recipe management screen and then press ENTER to load the screen 3 From the recipe management screen press the LOAD switch or F3 to display the recipe load selection screen 4 From the recipe load selection screen use the UP and DOWN arrow keys to selected the desired product recipe and press the ENTER key to load the recipe Figure 6 3 Shows the load selection screen Allen Bradley P...

Page 112: ...dialog box 2 Use the numeric keypad to input the desired bag length setting in millimeters then press the ENTER key to save your change To change the speed setting 1 From the operations screen press the SPEED switch or F8 to display an input dialog box 2 Use the numeric keypad to input the desired speed setting in bags per minute then press the ENTER key to save your change Figure 6 4 Shows the ma...

Page 113: ...es how to install a forming set To install a forming set 1 Choose the desired forming set The number on the forming collar mount identifies the forming set 2 Lift the forming set into the forming set mount Warning Forming sets can be very heavy Use safe lifting techniques when placing the forming set on its mount 3 Tighten the forming set securing knobs to hold the forming set to the machine frame...

Page 114: ...rely holds the film roll inflate the spindle to 80 100 PSI 4 Place the spindle on the film carriage as shown below Warning Film rolls can be very heavy Use safe lifting techniques when placing the roll and spindle on the film carriage 5 Once the roll and spindle are on the film carriage deflate the spindle to free the roll 6 Use a tape measure to center the film roll between the walls of the film ...

Page 115: ...l located on the side of the bagmaker to pull the film through the film carriage and up to the forming collar 2 Cut the film at a 45 degree angle 3 Slide the pointed end of the film between the forming collar and the forming tube 4 Work the film around the forming collar and down the forming tube 5 Use the setup rollers to adjust the angle of the film to match the angle of the forming collar Figur...

Page 116: ...sealing band on the desired sealing location The stroke of the vertical engage retract device is 20mm In order for the vertical sealing device to produce adequate sealing pressure the vertical sealing band must be 18mm away from the forming tube when the vertical sealing device is in the retracted position The position of the vertical sealing device can be adjusted laterally to accommodate differe...

Page 117: ...the retracted position 3 Use the positioning scales to ensure that both sides of the device are the same distance from the tube 4 Tighten the locking levers 5 Loosen the lateral adjustment bolts 6 Slide the vertical sealing device until the vertical sealing band is centered on the silicon strip embedded in the forming tube 7 Tighten the lateral adjustment bolts Figure 6 9 Shows the vertical sealin...

Page 118: ...vices However as a starting point set the pressure for the vertical seal engage retract device the belt assemblies and the horizontal cooling device to approximately 32 PSI The vertical cooling device does not have a pressure gauge because the pressure setting is important but not critical When setting the vertical cooling pressure start by turning the flow control valve to its medium position Fig...

Page 119: ...per spring tensioner so that it just touches the top of the upper spring 3 Pull the dancer arms to the top of the film carriage 4 Adjust the lower spring tensioner so that it just touches the bottom of the lower spring The setup above will produce nominal film tension From this point the film tension should be set high enough to prevent slack from forming in the film web yet as low as possible to ...

Page 120: ...ng a film tracking path To establish a film tracking path 1 Start the bagmaker and allow it to form bags Note At this point it is not important whether or not the horizontal and vertical seals are forming correctly only that you can see how the edges of the film tube are aligned 2 While the bagmaker is running use the MOVE FILM CARRIAGE switch on the main menu screen to adjust the position of the ...

Page 121: ...er the film tracking path has been established This procedure describes how to position the automatic film tracking sensors relative to the position of the film web At this point the film tracking path should have been established To position the sensors use the adjustment knob to move the sensors so that the inner sensor is blocked by the film web and the outer sensor is not blocked by the film w...

Page 122: ...ed film the sensor must be disable or it will cause registration errors If the bagmaker is using registered film the sensor must be positioned relative to the registration marks enabled and the photoeye window and photoeye correction values must be set Figure 6 14 Shows a piece of registered film and a piece of nonregistered film Net Wt 12 oz Net Wt 12 oz Registration Mark Artwork Non Registered F...

Page 123: ...s to be performed is to disable the sensor To disable the registration sensor 1 From the operations screen press the SETTINGS menu switch to display the settings menu screen 2 From the settings menu screen press the PHOTOEYE switch to display the photoeye screen 3 From the photoeye screen set the ENABLE DISABLE switch to DISABLE Figure 6 15 Shows the photoeye screen DISABLED F6 SWITCH OFFSET IN mm...

Page 124: ...sen the position adjustment lever 2 Slide the sensor until its lens is in the path of the registration marks 3 Tighten the position adjustment lever To enable the sensor 1 From the main menu screen press the SETTINGS menu switch to display the settings menu screen 2 From the settings menu screen press the PHOTOEYE switch to display the photoeye screen 3 From the photoeye screen set the ENABLE DISA...

Page 125: ...ook for the registration marks If there is artwork printed in the registration field that could generate false signals the photoeye window setting can prevent the bagmaker from examining the signal until the artwork has passed The photoeye correction setting offsets the cutting and sealing location It makes the bagmaker feed more film so that the desired sealing location is centered on the sealing...

Page 126: ...ro 0 This allows the bagmaker to continually look for the registration marks If there is artwork printed in the registration field set the photoeye window setting to 1 2 the distance between the artwork and the registration mark This will prevent the bagmaker from looking for a mark until just before the expected position of a mark Figure 6 18 Shows how to determine the photoeye window setting Net...

Page 127: ... determine the photoeye correction value 1 Disable the product feeder You do not want product drops during this procedure 2 Disable the cutting knife You want the bagmaker to produce a string of bags so that you can see how the sealing position needs to change 3 Start the bagmaker and allow it to form five or six empty bags 4 Measure the distance between the desired and actual cut locations 5 Ente...

Page 128: ... B PANELVIEW 600 7 1 Operating Procedures This section describes procedures that may be used on a daily basis when operating the bagmaker It describes how to n Start a Production Run n Shut Down the Bagmaker n Restart the Bagmaker after and E Stop n Jog the Bagmaker ...

Page 129: ...o start up the bagmaker At this point the forming collar should be installed in the machine and the film should be loaded and thread down past the film transport belts The start up procedures are n Preparing the Bagmaker n Making Empty Bags n Checking Empty Bags n Making Filled Bags n Check Filled Bags n Starting Production ...

Page 130: ...recipe is loaded If it is not refer to section 6 0 Machine Setup Procedures 3 Check that the desired bag length and machine speed are set If they are not refer to section 6 0 Machine Setup Procedures 4 From the operations screen set the HEAT switch to ENABLED to allow the sealing devices to heat 5 From the operations screen set the FEEDER switch to DISABLED to prevent product drops during empty ba...

Page 131: ...ered film Use the following procedure to make empty bags 1 Set the JOG AUTO selector switch to AUTO 2 Press the SYSTEM READY push button If the button does not stay lit there is an alarm condition present Correct the alarm condition clear the alarm from the screen and press the SYSTEM READY push button again 3 Press the JOG RUN push button to begin empty bag production 4 Allow the bagmaker to form...

Page 132: ...e edges of the vertical seal are not even a Adjust the film tracking left or right b Check that the film moves over the forming collar smoothly 3 Check that the bags are cut to the desired length If the bags are not cut to the desired length a Check the bag length setting on the operations screen b If using registered film check the settings on the photoeye screen c Check the film tension d Check ...

Page 133: ... make filled bags 1 From the operations screen set the FEEDER switch to ENABLED to allow product drops 2 Set the JOG AUTO selector switch to the AUTO position 3 Press the SYSTEM READY push button If the button does not stay lit there is an alarm condition present Correct the alarm condition clear the alarm from the screen and press the SYSTEM READY push button again 4 Press the JOG RUN push button...

Page 134: ...product in the bags If the bags do not have the correct amount of product in them check the product feeder 2 Check that there is no product trapped in the horizontal seals If there is product trapped in the seals adjust the product drop timing 3 Check that the desired amount of air is trapped in the bag If there is too little or too much air in the bags adjust the position of the foam deflators ...

Page 135: ...oduction run To start the normal production run 1 Set the JOG AUTO selector switch to the AUTO position 2 Press the SYSTEM READY push button If the button does not stay lit there is an alarm condition present Correct the alarm condition clear the alarm from the screen and press the SYSTEM READY push button again 3 Press the JOG RUN push button to begin normal filled bag production ...

Page 136: ...ergency situation Normal Stop Press the STOP push button to halt the bagmaker under normal conditions Extended Shutdown Use the following procedure to shut down the bagmaker for extended periods of time 1 Press the STOP push button to halt bag production 2 Turn the MAIN DISCONNECT switch to the OFF position 3 Raise the AIR DISCONNECT lever to shut off the air supply to the machine 4 Clean the mach...

Page 137: ...TOP 1 Use the alarms screen to help resolve the problems that caused the emergency stop 2 Pull out the EMERGENCY STOP push button 3 Press the SYSTEM READY push button If the button does not stay lit there is an alarm condition present Correct the alarm condition clear the alarm from the screen and press the SYSTEM READY push button again 4 Press the JOG RUN push button to resume bag production ...

Page 138: ...ions screen set the JOG SELECT switch to FILM JOGGING 2 From the bagmaker control panel set the JOG AUTO selector switch to JOG 3 Press and hold the JOG RUN push button to jog the film feeding device When the JOG RUN push button is released the film feeding device will stop Jaw Jogging Use the following procedure to jog the horizontal sealing jaws To jog the horizontal sealing device 1 From the op...

Page 139: ...Components This section describes procedures that can be used to replace or realign components These procedures include n Replacing Heater Cartridges and Temperature Probes n Replacing the Feeding Belts n Replacing the Cutting Knife n Aligning the Forming Collar n Aligning the Film Feed Belt Assemblies ...

Page 140: ...me procedure can be applied to replace the heating cartridges and the temperature probe in the rear jaw assembly Before starting this procedure make sure that the bagmaker is locked out and that the sealing jaws have cooled Note It is not necessary to remove the c frames from the machine to perform this procedure They have been removed in the illustrations for clarity To replace the heater cartrid...

Page 141: ...the c frame 6 Remove the two socket head cap screws that hold the jaw carrier in the c frame Figure 8 3 1 Shows the bolts and screws to remove to free the front jaw body 7 Remove the knife air cylinder from the c frame 8 Remove the jaw body and its carrier from the c frame C Frame Jaw Carrier Jaw Body Knife Extender Hex Head Bolt Cap Screw Figure 8 3 2 Shows how to remove the jaw body and its jaw ...

Page 142: ...idges and the temperature probe from the ceramic connectors 12 Remove the heating cartridges and the temperature probe from the jaw body 13 Install the new heating cartridges and the new temperature probe in the jaw body 14 Connect the heating cartridges and the temperature probe to the ceramic connectors 15 Assemble and install the front jaw assembly into its c frame Temperature Probe Ceramic Con...

Page 143: ...ocked out and that the seal band unit has cooled To replace the heating cartridges and the temperature probe 1 Remove the seal band drive unit from the heating bar assembly by removing the two hex head bolts that secure it to the assembly Note The seal band drive unit is heavy Use two people to remove the unit from the machine 2 Remove the terminal housing from the heating bar assembly to expose t...

Page 144: ...e from the ceramic connectors 4 Remove the heating cartridges and the temperature probe form the heating bar assembly 5 Install the new heating cartridges and the temperature probe in the heating bar assembly 6 Install the terminal housing on the heating bar assembly 7 Mount the seal band drive unit to the heating bar assembly Figure 8 6 Shows the heating bar assembly Heating Bar Heating Cartridge...

Page 145: ...s procedure make sure that the bagmaker is locked out To replace a film feed belt 1 Loosen the securing nut that holds the upper belt pulley in place 2 Loosen the belt tensioner until there is enough slack in the belt to remove it from around the belt pulleys 3 Install the new belt 4 Tension the belt using the belt tensioner 5 Tighten the securing nut that holds the upper belt pulley in place Note...

Page 146: ...eck that the jaws are at the bottom of their stroke 2 Push the knife extender inward to extend the knife 3 Locate the knife securing screw under the front jaw body 4 Loosen the screw until the slotted knife can be removed from between the jaws Warning Use a pair of pliers to remove the knife Even though it is dull it can easily cut you 5 Insert the new knife into the knife assembly Warning Use a p...

Page 147: ...hine frame and so that there is equal clearance between the forming tube and the forming collar on all sides To align the forming tube to the machine frame adjust the height of the standoffs so that the forming tube is square with the machine frame To align the forming collar to the forming tube loosen the forming collar securing bolts and slide the collar until there is equal clearance on all sid...

Page 148: ...led The following procedure describes how to align the belt assemblies to the forming tube To align a belt assembly to the forming tube 1 Loosen the collar bolt on the belt assembly 2 Rotate the assembly away from the tube and then back to the tube until it is flush with the flat surface on the side of the forming tube let the forming tube align the belt assembly 3 Tighten the collar bolt Figure 8...

Page 149: ...yle To changeover the bagmaker 1 Remove the existing forming set 2 Install the appropriate forming set 3 If the bag style you want to form requires a different vertical sealing device remove the existing vertical sealing device and install the appropriate vertical sealing device 4 Follow the procedures outlined in section 6 0 Machine Setup Procedures to prepare the bagmaker to form bags ...

Page 150: ...ntain the bagmaker The scheduling of the procedures is based on the bagmaker running one shift per day hours per shift If the bagmaker is operating for more or fewer shifts adjust the cleaning and maintenance schedules accordingly Note Before performing any cleaning or maintenance procedures ensure that the bagmaker is locked out See section 2 0 Safety Instructions ...

Page 151: ...urfaces If necessary contact the Rovema Service Department to identify an appropriate cleaning agent for your specific application 2 Use a mild household cleanser and a moist cloth to clean the housing 3 Clean the touchscreen display with a moist cloth only 4 Vacuum or sweep product and film waste from the bagmaker 5 Use a brass bristle brush to clean the film residue from the horizontal sealing j...

Page 152: ...aily Maintenance Each day use the following procedure to maintain the bagmaker 1 Check that the guard door switches and the EMERGENCY STOP switch is working properly 2 Remove any condensed water from the air filter regulator bowl 3 Inspect transport belts for wear 4 Check the vacuum filter ...

Page 153: ...aintain the bagmaker 1 Remove the jaw drive covers and inspect the timing belts for wear and proper tensioning 2 Check that all of the film guide rollers are moving freely 3 Inspect the Teflon tape on the forming tube 4 Check that the guard door switches and the EMERGENCY STOP switch are working properly Figure 10 1 Shows the jaw drive timing belts ...

Page 154: ... Check the switch s contacts 3 Press the SYSTEM READY push button LOW AIR PRESSURE POSSIBLE CAUSE 1 The air supply has been cutoff or decreased 2 The air pressure monitor is defective CORRECTIVE ACTION 1 Turn on the air supply Set to 85 psi 2 Check the air pressure switch REVERSE MODE POSSIBLE CAUSE 1 The bagger is set to the JAWS REV jogging mode 2 The jaw jam logic was activated CORRECTIVE ACTIO...

Page 155: ...lue 3 Check the RTD 4 Check the heating element REGISTRATION FAILED POSSIBLE CAUSE 1 The film registration photoeye is not aligned with the registration marks on the film 2 The sensitive of the photoeye is set incorrectly 3 The film is shiny and reflects the sensor light source away from the sensor s lens CORRECTIVE ACTION 1 Check that the lens of the photoeye is in the path of the registration ma...

Page 156: ...recalculating the horizontal setup parameters CORRECTIVE ACTION 1 Wait for the bagmaker to finish recalculating OUT OF FILM POSSIBLE CAUSE 1 The film roll is exhausted 2 The end of the film is taped to the film core 3 The power unwind motor is not unwinding film 4 The dancer assembly brake is not properly set CORRECTIVE ACTION 1 Replace the film roll 2 Cut the film from the core and replace the fi...

Page 157: ...vervoltage Fault System Bus Under voltage Fault System Overtemp Fault System control Power Fault System Phase Lose Fault System Ground Fault CORRECTIVE ACTION Refer to the 1394 Controller User Manual to resolve motion controller and axis module errors VERTICAL SEAL DRIVE ERROR MESSAGES ERROR MESSAGE Vertical Seal Drive Fault Vertical Seal Motor Overload CORRECTIVE ACTION Refer to the 160 SSC Contr...

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ROVEMA VPK Series, Operation Manual

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