Maintenance of metal mold discharge plate-precision

The maintenance of hardware molds must be done carefully, patiently, step by step, and must not be blindly engaged. When repairing the mold due to failure, a material belt must be attached to facilitate the inquiry. Open the mold, compare the material belt, check the mold condition, confirm the cause of the failure, find out the problem, and then clean the mold before removing the mold. When removing the mold, the force must be uniform. For the mold structure where the discharge spring is between the fixed plate and the discharge plate and the discharge spring is directly on the inner guide column, the disassembly of the discharge plate must ensure that the discharge plate is balanced and ejected. The tilt of the discharge plate may cause the punch in the mold to break. To disassemble the unloading plate, first use two screwdrivers to balance the prying, and then use both hands to balance the force to take it out. When it is difficult to disassemble, check whether the inside of the mold is cleaned, whether the locking screws are completely disassembled, whether the mold is damaged by jamming, find out the reason and then do the corresponding treatment, and do not blindly dispose of it. When assembling the unloading plate, clean the punch and the unloading plate first, add lubricating oil to the guide post and the introduction of the punch, put it in steadily, and then press it in place with both hands, and repeat it several times. If it is too tight, find out the reason (whether the guide post and the guide sleeve are oriented normally, whether there are damages in various parts, whether the new punch can pass the unloading plate in the correct position), find out the reason, and deal with it accordingly. If there is a press block on the fixed plate, check whether the material is stolen on the unloading back plate enough. The material contact surface between the unloading plate and the die is stamped for a long time to produce indentation (the gap between the unloading plate and the cavity is generally the thickness of the material minus 0.03-0.05mm. When the indentation is serious, it will affect the pressing of the material Accuracy, resulting in abnormal product size, instability, etc., need to repair or re-grind the discharge insert and the discharge plate. The contour sleeve should be checked for accuracy. When it is not equal, it will cause the discharge plate to tilt. Its precision The guiding and smooth spring pressure function will be damaged and must be maintained. In the metal mold stamping production, the daily maintenance of the mold is very important, that is, daily attention to check whether the stamping machine and the mold are in a normal state, such as the supply guide part of the stamping oil Refueling. Check the mold before the machine, check the blade, confirm the locking of each part, etc., so that many unexpected accidents can be avoided. Before maintenance, you must think about it first, and carefully record and accumulate experience 。Dongguan Precision Hardware Electronics Co., Ltd. has passed ISO9001 and TS16949 certification, the company’s systematic management, more than 10 sets of new molds are opened every month, the mold opening cycle is 7-25 days, the delivery rate is more than 90%, and the sample is qualified once. The rate is over 85%. The first publication of this article comes from the original, if reprinted, please indicate the source and author