In case of feeding error of NC feeder, the following six aspects need to be checked:
First, the quality is reliable. Check whether the punching speed of the matched punch is too fast. Generally speaking, the large feeding speed of pneumatic NC feeder is about 60-120 times per minute, and that of mechanical NC is about 150-200 times per minute, which is determined by the response time of servo control system and the time required for relaxation. If the actual stamping speed is too fast, the feeding of feeder will not keep up, resulting in feeding error.
Second, check whether the mold installation position is in line with the NC feeder. If it is not in a straight line, the feeding opportunity will have insufficient feeding and feeding error in a fixed direction.
Third, check whether the air pressure of the external air source is stable and whether the relaxation solenoid valve works normally.
Fourth, check whether the feeding time of the feeder is set too late. When the feeding step of the feeder is long and the feeding time is set late, all feeding will not be completed within the feeding time, resulting in orientation error.
Fifth, check whether the relaxation angle setting of NC feeder is correct. If it is relaxed too early or too late, it will lead to unsmooth relaxation and feeding error.
Sixth, check whether the roller of NC feeder has oil or metal foreign matters. Oil on the roller will cause feeding slip, and metal or foreign matters will cause intermittent feeding inaccuracy. It can be removed after inspection.
