A production process and special equipment for a reinforced pull ring

Abstract

The invention discloses a production technology of an enhanced pull ring. A pull ring material strip is accurately fed through a step wheel. The production technology comprises the steps of punching, outer contour blanking, rivet hole shaping, edge pre-rolling, riveting plane forming, 90-degree edge rolling, final edge rolling, and final reinforced shaping; and the steps are carried out through a punching station, a large edge cutting station, an edge pre-rolling station, a 90-degree edge rolling station and a final edge rolling and shaping reinforcement station which are sequentially arranged. The invention further discloses the specific structure of the final edge rolling and shaping reinforcement station adopted as a dedicated device, a plurality of pull ring production lines are arranged between an upper die holder and a lower die holder, and the pull ring production lines comprise stepping conveyer belts, final edge rolling upper dies, final edge rolling lower dies, shaping reinforcement upper dies, final shaping lower dies, final flattening lower dies, and the like. The production technology has the advantages that the control is convenient, the operation is stable and the production efficiency is high, the enhanced pull ring with better quality is provided, and industrial mass production of the enhanced pull ring is achieved.

Description

technical field [0001] The invention relates to a production equipment for a pull ring, in particular to a production process and special equipment for a reinforced pull ring. Background technique [0002] The pull ring of the environment-friendly easy-open lid is common on the market, and its opening end is a circular-arc reinforced structure, which is designed as a stamping arc R5.0, the arc length is 9.5, and the punching and extrusion depth is 0.85mm. The size of the pull ring is relatively unstable during the molding process, and a certain proportion of the pull ring will be bent or torn when the easy-open end is opened, and even cause the use problem that the easy-open end cannot be opened. Because the quality of the pull ring product depends on the performance of its processing equipment and the control of the production process, in the prior art, the utility model with the application number of 88207714.7 provides a pull ring progressive mold, which is composed of up...

AI Technical Summary

Problems solved by technology

[0002] The pull ring of the environment-friendly easy-open lid is common on the market, and its opening end is a circular-arc reinforced structure, which is designed as a stamping arc R5.0, the arc length is 9.5, and the punching and extrusion depth is 0.85mm. The size of the pull ring is relatively unstable during the molding process, and a certain proportion of the pull ring will be bent or torn when the easy-open end is opened, and even cause the use problem that the easy-open end cannot be opened

Because the quality of the pull ring product depends on the performance of its processing equipment and the control of the production process, in the prior art, the utility model with the application number of 88207714.7 provides a pull ring progressive mold, which is composed of upper and lower templates and guide columns. The process molds arranged in a straight line with 11 stations are combined together, and the structural form is a composite mold, which has mechanisms such as guiding positioning, pressing, punching, embossing, incision, curling, shaping and cutting, etc. Specifically, it is on the , Punching step die, forming step die, cutting step die, bending step die, pre-rolling step die, finishing rolling step die, bending step die and cutting step die are set between the lower templates , wherein the cutting step mold includes a die and a top block, and the punching, bending, pre-rolling and finish rolling step molds are all composed of a punch and a die. This utility model has reasonable design, high processing precision, good rigidity, Long service life, but the quality of the pull rings produced is unstable, and the bending or tearing of the pull rings cannot be avoided during use, which reduces the performance of the product

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