Maintenance of convex and concave moulds

Update:24-10-2019
Summary:

In the process of using the continuous die, it is very […]

In the process of using the continuous die, it is very necessary to carry out maintenance work, and it is necessary to carry out maintenance work with patience and patience, so as to ensure the safety and usability of the continuous die. In order to further improve the maintenance of stamping continuous moulds, China Standard Parts Network provides you with the main points of maintenance of stamping continuous moulds.

When disassembling the convex and concave moulds, pay attention to the original condition of the mould, so that it can be easily restored during subsequent mould loading. If there is padding or displacement, the thickness of the gasket should be engraved on the parts and recorded. To replace the punch, try to insert the die of the stripper smoothly, and whether the gap between the test insert and the die is uniform. If the die is replaced, the gap between the test insert and the punch should be uniform. In order to shorten the punch after grinding the punch, it is necessary to add the pad to the required length. It is necessary to check whether the effective length of the punch is sufficient.

To replace the broken punch, find out the cause, and check whether the corresponding die has chipping and whether the cutting edge is needed. To assemble the punch, check whether there is enough clearance between the punch and the fixed block or the fixed plate. If there is a pressure block, check whether there is a moving margin. The assembly die should be placed horizontally, and then placed with a flat iron block, such as a copper rod, to tap it in place, and must not be tilted and strongly knocked in, and the bottom of the die should be chamfered. After installation, check whether the concave surface is level with the mould surface.

After the punch die and the core are assembled, it is necessary to check the tape for necessary inspection. Whether the parts are misplaced or reversed, check whether the die and the die pad are reversed, whether the blank hole is blocked, and whether the new part needs to be replaced. If you steal the material, you need to steal the material, and the mould needs to be locked. Pay attention to the locking of the stripper screw. When locking, it should be locked from the inside to the outside. The balance should be cross-locked. Do not lock one screw first and then lock the other screw to avoid the tilt of the stripper and the punch is broken. The mould accuracy is reduced.

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