Heidelberg GTO series offset press failure and elimination (2)

Fault 5: Stop paper tongue damage reason: Fatigue break fault troubleshooting method:
1. Welding repair;
2. Mapping and processing.
Fault 6: The reason why the machine can't disengage:
1. Control circuit failure;
2. The clutch pressure traction magnet fails.
Troubleshooting method:
1. Check the circuit;
2. If the electromagnet is burned out, the coil needs to be repaired; if the magnet traction block is blocked and cannot work properly, only the card stop must be excluded;
3. If the method does not work, replace the domestic MQ series traction electromagnets with similar specifications. Traction below 3Kg, working schedule 25mm below the specification. Do small attachments.
Fault seven. The machine cannot feed the paper and the empty car is running normally, but it stops when it is fed.
the reason:
1. There is something wrong with the feed circuit or feed mechanism;
2. limit switch (paper feed) contact position misalignment;
3. The adhesive layer of the front end of the paper transport chip is seriously worn;
4. The jaw clamping force is not enough;
5. Tooth-displacement teeth left and right torsion spring failure;
Troubleshooting method:
1. Check the feed circuit and transmission mechanism;
2. Adjust limit switch contacts to normal position;
3. To replace the dental film or mapping processing, the dental sheet can be bonded rubber or polyurethane glue.
Emergency method: remove the residual glue layer on the tooth chip, apply the brush solution to the oil solution, and use 502 glue to cut the small piece of 0.5mm thick silicone cloth (or the same thick blanket, leather, canvas) to use For some time, please take a try;
4. Remove the dental chip, bend it a little toward the inside, increase the elastic force, and tighten the fixing screw.
5. Replace paper torsion spring, mapping processing. Structural dimensions of wire φ1.2mm, spring outer diameter φ16mm, working length 25mm
Number of turns 17, working twist angle φ140.
Analysis: The downtime caused by Cause 3 is very obvious, but if it is encountered for the first time, it must be judged quickly and accurately.
It is not easy. Sometimes it is a waste of time and no progress. Because the paper feeder is special,
Domestic equipment does not have this structure, foreign models are rarely used, so often overlooked ignored, and to determine the wear and failure of the dental chip must have a boundary. Please make a small test, you can immediately draw a conclusion: cut 5X5mm medical Tape
Two pieces, the center cut into a small round hole, stuck to two gingival teeth, the boot is normal, then the defect is the wear and failure of the gingival teeth if sticky 2 to 3 layers of tape, the boot paper is normal, indicating that the gingival chip Not enough clamping force.
Fault eight. Ink roller roll plastic layer off, cause uneven ink stringing: blade scribing scratches spread.
Repair method with HDl02V machine.