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Sickle and Circular Knife Grinding Machine A950 III

Manufacturer

KNECHT Maschinenbau GmbH
Witschwender Straße 26
88368 Bergatreute
Germany

Phone +49 -7527-928-0
Fax

+49 -7527-928-32

[email protected]
www.knecht.eu

Documents for machine operator

Operating Instructions

Date of issue of the Operating Instructions

October 30, 2018

Copyright

The copyright for these Operating instructions as well as other documents for the machine operator is held
by KNECHT Maschinenbau GmbH. They are provided only to customers and operators of our products and
are included with the machine.

These documents may neither be reproduced, nor made accessible to third parties, in particular rival firms,
without our express permission.

Operating Instructions

Содержание A 950 III

Страница 1: ...Sickle and Circular Knife Grinding Machine Operating Instructions A950 III Status 10 2018 Version 1 0 Translation ...

Страница 2: ... Date of issue of the Operating Instructions October 30 2018 Copyright The copyright for these Operating instructions as well as other documents for the machine operator is held by KNECHT Maschinenbau GmbH They are provided only to customers and operators of our products and are included with the machine These documents may neither be reproduced nor made accessible to third parties in particular r...

Страница 3: ...2 2 3 Warranty and liability 12 2 4 Safety regulations 13 2 4 1 Organizational measures 13 2 4 2 Protective equipment 13 2 4 3 Informal safety measures 13 2 4 4 Selection and qualification of personnel 13 2 4 5 Machine control system 14 2 4 6 Safety measures in normal operation 14 2 4 7 Hazards due to electrical power sources 14 2 4 8 Particular hazard zones 14 2 4 9 Servicing maintenance repair a...

Страница 4: ...ogram 29 7 2 2 Mount cam disc SP116 30 7 2 3 Grind the slicer knife without suspension attachment 33 7 2 4 Grinding the slicer knife with suspension attachment 35 7 2 5 Grind circular knives 37 7 2 6 Set the knife at the center of the disc 39 7 3 Dressing the front rear ceramic grinding wheels 40 7 4 Changing the front rear grinding wheels 42 7 5 Adjusting the grinding angle 44 8 Control 45 8 1 Ma...

Страница 5: ...ernet connection 59 9 Care and maintenance 60 9 1 Coolant 60 9 2 Lubricate cross table 60 9 3 Clean grinding machine 61 9 4 Other lubrication points 61 10 Malfunctions 62 10 1 Malfunctions 62 11 Disassembly and disposal 63 11 1 Disassembly 63 11 2 Disposal 63 12 Service spare parts and accessories 64 12 1 Postal address 64 12 2 Service 64 12 3 Spare parts 64 12 4 Accessories 65 12 4 1 Abrasives us...

Страница 6: ...transportation installation commissioning operation including fault elimination in the process flow upkeep maintenance repair In addition to the operating instructions and the binding accident prevention regulations applica ble in the country and place of use of the machine the generally acknowledged rules of technolo gy with regard to safe and professional work practices are to be observed 1 2 Wa...

Страница 7: ...g out servicing maintenance and repair work on it CAUTION RISK OF INJURY FROM KNIFE prohibition sign on the base plate Working with the grinding machine involves grinding knives that could cause serious cut injuries due to their sharpness Wearing protective gloves is mandatory when carrying out such work Caution when transporting blades Use the protective equipment provided by the knife manufactur...

Страница 8: ...ng plate is located on the right side of the machine behind the switch cabinet The machine serial number is located on the rating plate and on the front left of the machine 1 Important notes Figure 1 2 Machine serial number Figure 1 1 Rating plate ...

Страница 9: ...e figure and item number will be given in parentheses Example 7 25 1 means Figure number 7 25 item 1 Use SW6 Allen wrench to loosen and remove the screw at the center of the grinding wheel 7 25 1 by turning it counter clockwise Remove the front or rear grinding wheel and also the con nection flange 7 26 1 if necessary and mount the new grinding wheel in the reverse order 1 Important notes ...

Страница 10: ...nstructions in particular the section entitled Safety and the warning notes and have provided signed confirmation of this The safety related work of personnel will be monitored at regular intervals 2 1 3 Obligation on the part of the personnel All personnel working on the grinding machine shall be obliged before starting work to observe basic occupational safety and accident prevention regulations...

Страница 11: ...ervance of all the notes in the operating instructions The grinding machine is being used improperly if for example the slicer knife is removed without the cam disc fixtures are not properly attached 2 3 Warranty and liability Warranty and liability claims in case of personal injury or property damage are excluded if such damage is attributable to one or more of the following causes improper use o...

Страница 12: ...quipment must be attached by the operator as stipulated 2 4 3 Informal safety measures The operating instructions must be permanently available at the place of use of the grinding machine In addition to the operating instructions the generally applicable as well as the locally relevant accident prevention regulations must also be made available and observed All safety alert symbols and danger warn...

Страница 13: ... against restart Before activating the grinding machine ensure that no one will be injured by the start up of the machine In the event of a malfunction immediately stop the grinding machine and secure it against re start Rectify malfunctions immediately 2 4 7 Hazards due to electrical power sources The switch cabinet must always remain secured against access Only authorized personnel must be allow...

Страница 14: ...s that are not in a serviceable state Use only original replacement and wear parts When using external parts it cannot be guaranteed that they are constructed and manufactured to be suitable and safe 2 4 11 Cleaning the machine Handle any cleaning agents and materials used properly and dispose of them in an environmen tally friendly manner Dispose of parts subject to wear and replacement parts in ...

Страница 15: ...erating instructions attachment points for load suspension devices etc Use only a suitable transport vehicle with sufficient carrying capacity Secure loads safely Use appropriate attachment points Chapter 4 1 When recommissioning do so only in accordance with the operating instructions 2 Safety ...

Страница 16: ...ox 400 kg Current supply 3x 400 V Mains frequency 50 Hz Output 0 5 kW Power consumption 1 9 kW Energy consumption 4 A Back up fuse 16 A Control voltage 24 V DC Compressed air 6 bar 50 l min Measured A evaluated emission sound pressure level 72 dB A at workstation LpA Speed of grinding wheels front rear 255 rpm Grinding wheel A d 100xd 40x60 Two digit sound emission value information according to E...

Страница 17: ... used to automatically sharpen slicer knives sickle shaped or circular knives with a size of maximum 900 mm The slicer knife is clamped onto a cam disc and sharpened along the knife edge by the grinding wheel precisely according to its shape In the event of an emergency the grinding machine can immediately be stopped by pressing the Emergency Stop button ...

Страница 18: ...4 Description of components 1 Hand wheel for grinding depth 2 Grinding unit 3 Water tray 4 Control unit with control panel 5 Cam disc SP116 with knife 6 Machine feet 1 2 3 6 4 5 Figure 3 2 General view of grinding machine ...

Страница 19: ...iption 1 Grinding wheel rear 2 Angle adjustment scale 3 Coolant hose 4 Inductive switch 5 Drive pinion of cam disc 6 Grinding wheel front 7 Cam disc drive servo motor Figure 3 3 Grinding unit 1 6 7 4 4 4 5 2 3 3 ...

Страница 20: ...rinding wheel 3 Maintenance unit 4 Cam disc pressure 3 4 1 Switching the grinding machine on off 1 Main switch Turning the main switch from 0 to I switches on the grinding machine Turning the main switch from I to 0 switches off the grinding machine 3 Description Figure 3 4 Cam disc bracket Figure 3 5 Pneumatic cabinet Figure 3 6 Main switch 4 3 2 1 2 3 1 4 1 ...

Страница 21: ...l 1 Touch panel 2 Emergency stop button 3 Control ON button 4 Start Stop button 5 Setting operation key switch Position 1 for setting operation Position 0 for automatic mode 3 Description Figure 3 7 Control panel 3 2 1 4 5 ...

Страница 22: ...ding wheel to change position 10 Break after step program stops after current step 11 Override adapt speed to grinding disc 12 F1 Knife Selection select the desired grinding program see Chapter 8 2 13 F2 Process Data see Chapter 8 3 14 F3 Reset delete current error 15 F5 Settings see Chapter 8 4 16 F6 Back Return to previous screen NOTICE The assignment of the touch panel buttons varies according ...

Страница 23: ...n unloading after acceptance of the delivery inform KNECHT Maschinen bau GmbH and the freight forwarder immediately Refer directly to an independent specialist as needed Remove the packaging and shipping straps Remove the shipping straps on the grinding machine Dispose of packaging in an environment friendly manner 4 3 Transport to another installation site For transport to another installation si...

Страница 24: ...red or operated in dry rooms 5 3 Supply connections The grinding machine is delivered ready for connection with the appropriate connection cable Have an authorized electrician install the current supply on site Have an authorized specialist on site install the compressed air supply Connect compressed air only when the doors are closed Never cut off the compressed air while the knives are clamped S...

Страница 25: ...SW17 Check the machine for correct horizontal and vertical positioning by laying an appropriate machine water level on the respective guide rails Dismantle all the handling devices on the machine Ensure that all the axes can be moved freely Completely install and inspect the protective equipment before commissioning Be sure to have all the safety devices checked by trained personnel before commiss...

Страница 26: ...ater basin 3 2 3 to 3 cm below the rim with water Open the protective doors Set the coolant hoses 6 1 1 as shown The gap from the rear grinding wheel 6 1 2 and the front grinding wheel 6 1 3 should be approx 5 cm The coolant hoses must not come into contact with the grinding wheels ATTENTION Observe the minimum gap between the coolant hoses and the grinding wheels as the grinding wheel moves forwa...

Страница 27: ...n of the coolant pump The direction arrow 6 4 1 indicates the direction of rotation of the pump If required interchange the phases in the power plug ATTENTION Make sure the machine is correctly connected to the power supply If the connection to the voltage supply is incorrect the grinding belts and cam disc can rotate in reverse of the prescribed direction An incorrect direction of rotation can re...

Страница 28: ...N button 3 7 3 flashes Press Control ON button 3 7 3 then turn key switch 3 7 5 to the 0 position automatic mode 7 2 Grind knives 7 2 1 Load grinding program Press the touch panel button F1 Knife Selec tion 7 1 1 on the main screen The dialog box Open appears The grinding programs are locat ed in the Product Data folder Then select the desired grinding program by double clicking on the respective ...

Страница 29: ...ed NOTICE The name of the cam disc matching the grinding program appears on the main screen under Holder 7 3 2 This name is engraved on the cam disc The appropriate abrasive must be used for each knife and grinding program 7 2 2 Mount cam disc SP116 Open the protective doors Mount the Z coupling on cam disc SP116 as described and tighten using combination wrench SW19 Here care should be taken to n...

Страница 30: ...priately in the cam disc ATTENTION Incorrect positioning of cam disc SP116 can damage the limit switches and the drive pinion Close the protective doors Press Home Position 7 7 1 on the touch panel in the main menu to move the cam disc into the change position The cam disc moves to a position suitable for placing of knives 7 Operation Figure 7 5 Mounting cam disc SP116 Figure 7 6 Spigot and center...

Страница 31: ...32 ATTENTION Depending on the size and dimension of the knife the knife can be unwieldy with a blade guard Ergonomics Do not step inside the machine room in order to insert the knife 7 Operation ...

Страница 32: ...lade guard Serious injury may result CAUTION ATTENTION Only use knives that match the cam disc Compare label on disc and knife Using an incorrect cam disc can damage the knife and machine Secure the knife and blade guard from falling 7 9 3 with one hand and attach the clamping flange 7 9 1 mount the star handle 7 9 2 with the other hand Tighten the star handle 7 9 2 Finally remove the blade guard ...

Страница 33: ...nife is in working position press the Start Stop button 7 10 1 again to stop the machine NOTICE Briefly pressing the Start Stop button interrupts the program flow and the button flashes The grinding program continues when the button is pressed again Pressing the Start Stop button for 3 sec onds aborts the program The button no longer flashes Pressing the button again starts the program flow once m...

Страница 34: ...ds to the contour of the knife Secure the knife and blade guard from falling 7 13 3 with one hand and attach the clamping flange 7 13 1 mount the star handle 7 13 2 with the other hand Tighten the star handle 7 13 2 Finally remove the blade guard 7 13 3 ATTENTION Only use a knife that matches the cam disc Compare label on disc and knife Using an incorrect cam disc can damage the knife and the mach...

Страница 35: ...ing position press the Start Stop button 7 14 1 again to stop the machine NOTICE Briefly pressing the Start Stop button interrupts the program flow and the button flashes The grinding program continues when the button is pressed again Pressing the Start Stop button for 3 sec onds aborts the program The button no longer flashes Pressing the button again starts the program flow once more from the be...

Страница 36: ...de guard from falling 7 16 1 with one hand and attach the clamping flange 7 16 2 mount the star handle 7 16 3 with the other hand Tighten the star handle 7 16 3 Finally remove the blade guard 7 16 1 Close the protective doors ATTENTION Only use a knife that is suitable for the cam disc Compare label on disc and knife Using an incorrect cam disc can damage the knife and machine Figure 7 15 Place ci...

Страница 37: ...rt Stop button 7 17 1 again to stop the machine NOTICE Briefly pressing the Start Stop button interrupts the program flow and the button flashes The grinding program continues when the button is pressed again Pressing the Start Stop button for 3 sec onds aborts the program The button no longer flashes Pressing the button again starts the program flow once more from the beginning 7 Operation Figure...

Страница 38: ... wheel Check sharpness when the program ends Start Stop button no longer flashes If the knife is not yet sharp mark the blade on both sides with a pencil and grind again The marked places indicate whether the knife has been completely ground or not If not adjust the grinding angle to make it steeper 7 Operation Figure 7 18 Set knife Figure 7 19 Correct Figure 7 20 Incorrect ...

Страница 39: ... be dressed Set the grinding discs to a comfortable position approx 34 see Chapter 7 5 Change to settings via the main menu F5 Set tings 3 8 15 Switch on the front grinding wheel To do so press Front Grinding Wheel On Off 7 21 1 on the touch panel ATTENTION Turn the Setting Mode key switch 3 7 5 to position 1 Insert the deburring lever 7 22 1 as far as it will go into the relevant bushing Move the...

Страница 40: ...1 7 Operation Switch on the rear grinding wheel 7 23 1 by pressing Rear Grinding Wheel On Off 7 21 2 on the touch panel and carry out dressing as de scribed above Figure 7 23 Dress rear grinding wheel 1 ...

Страница 41: ...e grinding wheel 7 25 1 by turning it counter clockwise Remove the front or rear grinding wheel and also the connection flange 7 26 1 if necessary and mount the new grinding wheel in the reverse order If the grinding wheel is half worn mount the in termediate flange 7 26 1 with an M8x40 screw NOTICE Two intermediate flanges with corresponding screws are included in the accessories Figure 7 24 Adju...

Страница 42: ...43 ATTENTION Only use original grinding wheels Using non original grinding wheels can result in damage to the knife and the grinding machine 7 Operation ...

Страница 43: ...ar grinding wheel is adjusted manually Release the clamping lever 7 27 1 and set the fixture to the desired angle 7 27 2 The fixture is then clamped once again using the clamping lever 7 27 1 Proceed in the same way with the rear grinding wheel Figure 7 27 Setting the grinding angle 1 2 ...

Страница 44: ...ome position move grinding wheel to change position 10 Break after step program stops after current step 11 Override adapt speed to grinding disc 12 F1 Knife Selection select the desired grinding program see Chapter 8 2 13 F2 Process Data see Chapter 8 3 14 F3 Reset delete current error 15 F5 Settings see Chapter 8 4 16 F6 Back return to previous screen NOTICE The assignment of the touch panel but...

Страница 45: ...e filed in this folder The grinding programs have the ending dat in the file name To load a grinding program proceed as follows Select the desired grinding program The name of the selected grinding program appears in the File Name column The grinding program is loaded with one click on the Open button The Open dialog box is closed and the selected grinding program is displayed in the main menu Fig...

Страница 46: ...e and can be loaded again from the file ATTENTION Changing the grinding data can cause mal function and damage to the machine Chang es may only be made under the supervision of KNECHT technicians or by persons who have been trained by KNECHT Maschinenbau 1 F1 Load from File 2 F2 Save As 3 F4 Download 4 F5 Keyboard 5 F6 Back return to previous screen Figure 8 3 Grinding data 1 2 3 4 5 ...

Страница 47: ...ding wheel the set grinding angle is dis played Grinding wheel adjustment Chapter 7 5 Angle Tool 2 rear Angle adjustment of rear grinding wheel the set grinding angle is dis played Grinding wheel adjustment Chapter 7 5 Overrun Start Distance limit switch is reached Front lift off Start Front grinding wheel is raised true yes false no Back lift off Start Rear grinding wheel is raised true yes false...

Страница 48: ... pump switch on off 3 Processing period current knife last knife and average in mins secs 4 F1 Axes Manual Mode Axes are moved individually in manual mode 5 F2 Manual Functions Allows manual operation of the machine 6 F3 Machine Data For displaying editing machine data that has been set ex factory 7 F4 Message Texts Display all error messages sequentially number of messages frequency start 8 F6 Ba...

Страница 49: ...s can also be controlled manually The individual axis positions are displayed at the top left of the sub menu Axes Manual Mode 1 Move the selected axes in direction backwards 2 in combination with or activate rapid traverse in the relevant direction 3 Move the selected axes in direction forwards 4 F6 Back Return to previous screen 5 Cam disc drive Figure 8 8 Settings Axes manual mode 1 5 2 3 4 8 C...

Страница 50: ...ay are disabled NOTICE Manual functions are not required in normal operation During maintenance work e g when changing grinding wheels the individ ual machine components can be moved to a more easily accessible position using the manual functions 8 6 1 General When the sub menu F2 Manual Functions 8 7 5 is accessed the screen initially switches to the general manual functions 8 9 1 Switch on all l...

Страница 51: ...wards 8 6 3 Rear grinding wheel 1 Switch on off rear grinding wheel drive 2 Move grinding wheel forwards backwards 8 6 4 Knife holder 1 Move knife package up down 2 Move knife package forwards backwards 3 Open close brake 4 Switch on off limits machine does not move beyond the limit switches in manual mode 8 Control Figure 8 10 Manual functions Front grinding wheel Figure 8 11 Manual functions Rea...

Страница 52: ...ION Only open the brake when the knife package has previously been moved away and for wards Otherwise there is a risk of damage to the machine since the cam disc can impact against the side wall in an uncontrolled manner ...

Страница 53: ...ngs 8 1 15 The Machine Data display 8 13 shows the basic machine settings The data are saved in a file and can be loaded again from the file 1 F1 Load from file 2 F2 Save As 3 F4 Download 4 F6 Back Return to previous screen 8 7 1 General Coolant pump on true always on false only on at program start Waittime after coolant pump on in secs 8 Control ...

Страница 54: ...peed Homeposition mm s Speed process mm s Waittime knife forward backward in secs Waittime knife up down in secs Waittime opening brake in secs Waittime when changing direction in secs 8 7 4 Tools Grinding wheel front rear Home Position in mm Service Position in mm Figure 8 17 Machine data Grinding wheel front rear 8 Control Figure 8 16 Machine data Support Figure 8 15 Machine data Options ...

Страница 55: ...e number of errors that are hindering the operation of the machine at a particular moment Furthermore the sub menu provides information on which errors have occurred and since when they have been active NOTICE No settings can be applied in the Message Texts sub menu The errors are also displayed in the top half of the main screen 8 1 1 Figure 8 18 Message texts 8 Control ...

Страница 56: ... 1 on the touch panel to get back to the start screen Press F5 Options 8 20 1 on the touch panel A new window 8 21 opens 1 F1 Sysinfo 2 F2 Settings 3 F3 Language Change language 4 F6 Back Return to the previous screen 8 Control Figure 8 21 Options Figure 8 19 Main screen 1 Figure 8 20 Start screen 1 3 4 2 1 ...

Страница 57: ...he touch panel A new window 8 24 opens Use F3 Language 8 24 1 to open the language selection 8 25 The desired language is selected and automatically activated by pressing the corresponding touch panel button 8 25 1 Then press F6 Back 8 25 2 on the touch panel to return to the start screen The main screen appears on pressing F4 Produc tion 8 23 2 8 Control Figure 8 24 Options Figure 8 25 Select lan...

Страница 58: ...ansmitted In this way the manufac turer s technicians can perform a diagnosis of the machine change software settings and install or edit new grinding programs Team Viewer the program pre installed on your machine is required in order to set up the internet connection An active internet connection must be available NOTICE Please have the internet link established by your network administrator 8 Co...

Страница 59: ...ned The water trough must always be filled with water up to 3 cm below the rim The water trough can be pulled out in front for filling and cleaning The pump 9 1 1 including the guard can be removed by loosening and removing the star handles 9 1 2 9 2 Lubricate cross table Place grease gun on the lubrication points and lubricate the cross table We recommend OEST Multi Purpose Grease L2 or a similar...

Страница 60: ...ding machine Clean the window with window cleaning agent ATTENTION Do not spray wash the grinding machine with water This can damage the machine 9 4 Other lubrication points Press one round of grease into the lubrication points at the marked places once a month using the grease gun Grease the spindle 9 3 1 once every month 9 Care and maintenance Figure 9 3 Adjustment axis 1 ...

Страница 61: ...worn Mount intermediate flange or new grinding wheel The grinding machine does not run after pressing the Start button Protection hood is open Close the protection hood Emergency Stop button is activated Release the Emergency Stop button and press the Control On button Control is not switched on Press the Control On button Control cannot be switched on Motor protection switch has tripped Switch on...

Страница 62: ...ly must be conducted by qualified trained personnel 11 2 Disposal At the end of service life the machine must be disposed of by a qualified specialist company In certain situations and after consultation with KNECHT Maschinenbau GmbH the machine may be returned Operating materials e g grinding wheels coolants etc must also be disposed of correctly ...

Страница 63: ...ou are in need of spare parts please use the spare parts list provided with the machine Please make your order using the format provided in the following When ordering please always provide Example Machine type A 950 III Serial no 050158950 Designation of module Slide X module Designation of component Cam disc bearing shaft Z axis Item no 12 Drawing no 2000130 12428 Quantity 1 We are always happy ...

Страница 64: ... 15 10 K300NA B46 C60 d 100x60x40 EN 171741 412F 73 1510 46 ATTENTION Only use original grinding wheels Using non original grinding wheels can result in damage to the knife and the grinding ma chine If you require grinding wheels or other accessories please contact our sales staff dealers or KNECHT Maschinenbau GmbH directly Thank you for choosing KNECHT ...

Страница 65: ...o longer be valid Designation of the machine Sickle and circular knife grinding machine Model designation A 950 III Applicable harmonized standards DIN EN ISO 12100 especially DIN EN ISO 13850 DIN EN ISO 13857 DIN EN 13218 DIN EN 60204 1 DIN EN 349 Responsible for documentation Peter Heine B Eng Mechanical Engineering BA Tel 49 7527 928 40 Manufacturer KNECHT Maschinenbau GmbH Witschwender Straße ...

Страница 66: ...KNECHT Maschinenbau GmbH Witschwender Straße 26 88368 Bergatreute Germany T 49 7527 928 0 F 49 7527 928 32 mail knecht eu www knecht eu ...

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