KNECHT A950 II Operating Instructions Manual Download Page 1

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Grinding Machine for Sickle-shaped and Circular Knives

Operating Instructions

A 950 II

Status 08.2018

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Version 1.3 | Translation

Summary of Contents for A950 II

Page 1: ...Grinding Machine for Sickle shaped and Circular Knives Operating Instructions A950 II Status 08 2018 Version 1 3 Translation...

Page 2: ...rating instructions Date of issue of the operating instructions August 22 2018 Copyright The copyright for these operating instructions and documents is held by KNECHT Maschinenbau GmbH These document...

Page 3: ...12 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 personn...

Page 4: ...gram 29 7 2 2 Mount cam disc SP 116 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...

Page 5: ...ternet connection 61 9 Care and maintenance 62 9 1 Coolant 62 9 2 Lubricate cross table 62 9 3 Clean grinding machine 63 9 4 Other lubrication points 63 10 Malfunctions 64 10 1 Faults 64 11 Disassembl...

Page 6: ...machine e g those entrusted with transportation installation commissioning operation including fault elimination in the process flow servicing maintenance repair In addition to the operating instruct...

Page 7: ...ing out servicing maintenance and repair work on it CAUTION RISK OF INJURY FROM KNIFE prohibition sign on the base plate Work on the grinding machine involves grinding knives which could cause serious...

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

Page 9: ...added in brackets after the machine component Example 7 25 1 denotes 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...

Page 10: ...the section entitled Safety and the warning notes and have provided signed confirmation of this Checks are also carried out at regular intervals to ensure that the personnel are fulfilling their oblig...

Page 11: ...all the instructions in the operating instructions The grinding machine is being used improperly if for example the slicer knife is removed without the cam disc attachments are not properly mounted 2...

Page 12: ...ponents are supplied the protective equipment must be correctly attached by the operator according to the instructions 2 4 3 Informal safety measures The operating instructions must be permanently ava...

Page 13: ...ure against restarting Before switching on the grinding machine ensure that no one is exposed to any risk from the start up of the machine If there are any functional faults stop the machine immediate...

Page 14: ...erfect condition Only use original replacement and wear parts If parts are purchased from external suppliers there is no guarantee that they are designed and manufactured to withstand the required lev...

Page 15: ...tructions attachment points for hoisting equipment etc Only use suitable transport vehicles with sufficient load bearing capacity Attach the load securely Use appropriate attachment points Chapter 4 1...

Page 16: ...ht 400 kg Power 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 e...

Page 17: ...sed 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...

Page 18: ...ion of modules 1 Hand wheel for grinding depth 2 Grinding unit 3 Water tray 4 Control unit with control panel 5 Cam disc SP 116 with knive 6 Water regulator 7 Machine feet Figure 3 2 General view of g...

Page 19: ...ption 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 3 6 7 4...

Page 20: ...wheel clamp 4 Rear grinding wheel clamp 5 Maintenance unit 6 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 ma...

Page 21: ...panel 1 Touch panel 2 Emergency Stop button 3 Control ON button 4 Start Stop button 5 Setting Mode key switch Position 1 for setting mode Position 0 for auto matic mode 3 Description Figure 3 7 Contro...

Page 22: ...ing wheel to change position 10 Pause 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...

Page 23: ...mage is detected on unloading after acceptance of the delivery inform KNECHT Maschinen bau GmbH and the freight forwarder immediately If required consult an independent expert immediately Remove the p...

Page 24: ...rooms 5 3 Supply connections The grinding machine is delivered ready for connection with the appropriate connection cable Have a qualified electrician on site install the current supply Have a qualif...

Page 25: ...ench 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...

Page 26: ...3 2 3 to 3 cm below the rim with water Open the safety doors Set the coolant hoses 6 1 1 as illustrated in the figure The gap from the rear grinding wheel 6 1 2 and the front grinding wheel 6 1 3 shou...

Page 27: ...he coolant pump The direction arrow 6 4 1 indicates the direction of rotation of the coolant pump If required interchange the phases in the power plug ATTENTION Make sure the machine is correctly conn...

Page 28: ...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 Selection 7 1...

Page 29: ...ed NOTICE The name of the grinding wheel 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 eac...

Page 30: ...priately in the cam disc ATTENTION Incorrect positioning of cam disc SP116 can damage the limit switches and the drive pinion Close the safety doors Press Home position 7 7 1 on the touch panel in the...

Page 31: ...32 ATTENTION Depending upon 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...

Page 32: ...ard This can result in serious injuries CAUTION ATTENTION Only use knives suitable for the cam disc compare label on disc and knife Using an incorrect cam disc can damage the knife and machine Secure...

Page 33: ...ng position press the Start Stop button 7 10 1 again to stop the machine NOTICE If you briefly press the Start Stop button the program is interrupted and the button flashes The grinding program contin...

Page 34: ...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 han...

Page 35: ...s the Start Stop button 7 14 1 again to stop the machine NOTICE If you briefly press the Start Stop button the program is interrupted and the button flashes The grinding program continues when the but...

Page 36: ...e 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 Cl...

Page 37: ...7 17 1 again to stop the machine NOTICE If you briefly press the Start Stop button the program is interrupted and the button flashes The grinding program continues when the button is pressed again Pre...

Page 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 whe...

Page 39: ...s Change to settings via the main menu F5 Set tings 3 8 15 Press Dressing Position 7 21 1 on the touch panel to move the grinding wheels into dressing position ATTENTION Turn the Setup Mode key switch...

Page 40: ...1 7 Operation Switch on the rear grinding wheel 7 23 1 by pressing Grinding wheel rear On Off 7 21 3 on the touch panel and carry out dressing as described above Figure 7 23 Dress rear grinding wheel...

Page 41: ...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 connection flange 7 26 1 if...

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

Page 43: ...4 7 Operation 7 5 Adjusting the grinding angle The grinding angle of the grinding wheels is adjusted based on the parameters in the grinding program see Chapter 8 3 3 Figure 7 27 Adjust grinding wheel...

Page 44: ...Home position move grinding wheel to change position 10 Pause after Step program stops after current step 11 Override adapt speed to grinding disc 12 F1 Knife Selection select the desired grinding pr...

Page 45: ...s are 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 grindin...

Page 46: ...le 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...

Page 47: ...heel front Grinding wheel rear 8 3 3 Steps Tool selection of the abrasives Cycles number 1 2 3 Angle Tool 1 front angle adjustment of front grinding wheel Angle Tool 2 rear angle adjustment of rear gr...

Page 48: ...49 Raise rear finish rear grinding wheel is raised from knife true yes false no Half cycle tool only does half cycle 8 Control system...

Page 49: ...switch on off 3 Processing time 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...

Page 50: ...es 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 activate rapid travers...

Page 51: ...that of the rear grinding wheel is angle back 8 8 6 In order to move the axes manually select the desired axis on the touch panel The selected axis is highlighted in blue The axes can be moved by mea...

Page 52: ...disabled NOTICE Manual functions are not required in normal operation During maintenance work e g when changing grinding wheels the indi vidual machine components can be moved to a more easily access...

Page 53: ...inding wheel rear 1 Switch on off rear grinding wheel drive 2 Move grinding wheel forwards backwards 3 Clamp release grinding angle adjustment 4 Switch on off drivecontrol grinding angle adjustment 8...

Page 54: ...NTION Only open the brake when the knife assem bly has previously been moved away and forwards Otherwise there is a risk of damage to the machine since the cam disc can impact against the side wall in...

Page 55: ...e Machine data display 8 14 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 Apply value 4 F6 Back return to pr...

Page 56: ...m s Speed process mm s Waiting time knife assembly forward back ward in secs Waiting time knife assembly up down in secs Waiting time opening brake in secs Dwell time change of direction in secs 8 7 4...

Page 57: ...r of errors that are hindering the operation of the machine at a particular moment Furthermore the sub menu provides information as to which errors have occurred and since when they have been active N...

Page 58: ...on the touch panel to get back to the start screen Press F5 Options 8 21 1 on the touch panel A new window 8 22 opens 1 F1 Sysinfo 2 F2 Settings 3 F3 Language change language 4 F6 Back return to prev...

Page 59: ...uch panel A new window 8 25 opens Use F3 Language 8 25 1 to open the language selection 8 26 The desired language is selected and automatically activated by pressing the corresponding touch panel butt...

Page 60: ...tted In this way the manufacturer s technicians can perform a diagnosis of the ma chine change software settings and install or edit new grinding programs Team Viewer the program pre installed on your...

Page 61: ...ugh 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 re...

Page 62: ...id free oil into the grinding 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 P...

Page 63: ...worn Mount connection 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 activat...

Page 64: ...mbly must be carried out by a qualified specialist company 11 2 Disposal At the end of service life the machine must be disposed of by a qualified specialist company In exceptional cases and by agreem...

Page 65: ...f you need spare parts please use the spare parts list provided with the machine Please place your order as shown below Please always include the following information Example Machine type A 950 II Se...

Page 66: ...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 machine If you r...

Page 67: ...sent Designation of the machine Grinding Machine for Sickle shaped and Circular Knives Type designation A 950 II Applicable harmonized standards DIN EN ISO 12100 in particular DIN EN ISO 13850 DIN EN...

Page 68: ...KNECHT Maschinenbau GmbH Witschwender Stra e 26 88368 Bergatreute Germany T 49 7527 928 0 F 49 7527 928 32 mail knecht eu www knecht eu...

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