1，Fault analysis: the feeding error has a fixed direction
Cause analysis: a. Insufficient pressure of feeding wheel; b. The feeding length is too long; c. Insufficient feeding; d. There are hairs or objects in the mold
Troubleshooting: a. Increase the pressure; b. Pulling caused by poor stripping of upper die; c. Check whether the coil width and the position of the die guide plate are appropriate, or whether the die and NC are in line; d. Check whether there are burrs and foreign matters on the baffle plate and stripper plate.
2， Fault analysis: sudden error occurs during feeding
Cause analysis: a. Whether the adjustment of NC feeder to materials is appropriate; b. The transmission clearance between the roller and the servo motor is too large; c. Related unevenness of coil
Troubleshooting: a. Whether the speed of the leveling machine NC is matched, or whether the middle distance between the leveling machine and NC, the material arc height and the punch speed are appropriate; b. Tighten the belt; c. Check whether the length, width and thickness of coil are standard.
3， Fault analysis: coil snaking
Cause analysis: a. Improper roll width and stop wheel position; b. Uneven roller pressure; c. Slipping and jamming; d. Excessive roller pressure
Exclusion method: a. Readjust; b. Readjustment; c. Check whether the die guide groove is in line with NC, whether there is waste pick-up in the die and whether the material has burrs; d. Readjust
