Cutting mold

Abstract

The invention discloses a cutting mold, and relates to the technique of molds. The cutting mold is provided with a lower mold and an upper mold; the lower mold comprises a base plate, a lower cutter edge and a mold core; the upper mold comprises a mold handle, an upper male plate and an upper cutter edge which are sequentially arranged from top to bottom, and also comprises a material rejecting device; the material rejecting device comprises a material rejecting pushing ring which is ring-shaped and protrudes downward as well as a material rejecting seat which folds in a flat-plate shape from the root part of the material rejecting pushing ring and extends toward the periphery; the material rejecting pushing ring is sleeved on the outer periphery of the upper blade of the upper cutter edge, and compared with the lower edge of the upper blade, the lower edge of the material rejecting pushing ring protrudes downward; and the material rejecting seat is elastically assembled to the lower surface of the upper male plate. The big problem in the prior art that when a mold for punching a metal tank cover or a tank base punches, cut iron skin edge excess materials are clamped onto the upper blade of the upper cutter edge like iron clamps and are required to be removed with heavy labor is solved; and in mold splitting, the material rejecting pushing ring of the material rejecting device prevents iron skin edge excess materials from moving upward, and the iron skin edge excess materials are promoted to falling off automatically.

Description

technical field [0001] The invention relates to mold technology, in particular to a cutting mold suitable for punching metal can lids and can bottoms. Background technique [0002] Metal cans (boxes) are a very versatile packaging container. Such as food packaging (packing moon cakes, biscuits, etc.), tea packaging, pharmaceutical packaging, health care product packaging, gift packaging, etc. According to incomplete statistics, the annual production of metal cans (boxes) in my country is as many as several billion, and it is still developing. [0003] For the convenience of description, the cans (boxes) are collectively referred to as cans. The production process of metal cans is mainly punching. The can lid, tank bottom and can body are punched on a cutting punch (or other equipment) with the help of molds. The materials are mainly iron sheets (such as tinplate, fine sand iron, etc.). Therefore, the mold is very important to the production of metal cans. The mold not onl...

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at overcoming the problem that in the prior art, metal can lids or can bottoms can be punched out, and the iron edge leftovers cut out during punching are hooped on the upper knife edge of the upper mold like iron hoops and need to be removed manually. , labor-intensive and time-consuming, and there are deficiencies in personal safety hazards, providing a cutting mold

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