A front-mold inner-drawing slider mold

Abstract

The invention relates to a slider mold with an interior-drawer-type front mold, which comprises an upper mold and a lower mold, wherein the upper mold comprises an I-shaped plate, a water gap plate, a backing plate and a plate A; the lower mold comprises a plate B, a square iron, a bottom plate, a surface needle plate and a bottom needle plate; the upper mold is provided with an interior-drawer-type slipper tripping mechanism; the interior-drawer-type slipper tripping mechanism comprises a shovel base, a side draw pin, a wear-resistant block and a slider; the shovel base is fixed below the I-shaped plate; the side draw pin is arranged in the shovel base, and the bottom is inserted into the slider; the slider presses on the bottom of the plate A; the wear-resistant block is arranged between the shovel base and the slider; the slider is provided with a lug boss matched with a molded product; and after finishing the injection molding, the plate A and the plate B are separate, and the shovel base drives the slider to move to one side through the side draw pin, thereby demolding the molded product with back-off. Compared with the prior art, the mold has the advantages of compact structure, high stability, long service life and the like, and is convenient for maintenance.

Description

technical field [0001] The invention relates to a mold, in particular to a front-mold inner-drawing slider mold. Background technique [0002] Now there are various forms of injection molding products. Many products are required to be molded with inverted buttons during molding. This requires that the hook can be released without damaging the product during demolding. The mechanism is mainly reflected in the large / medium-sized three-plate mold point gate mold. The distance between the runner and the slider is relatively close, and the plastic material is easy to flow into the slider, resulting in a decrease in the output of production products and a long maintenance cycle. In addition, mold maintenance It is also very complicated, and a lot of work needs to be done during maintenance, which affects the later production progress. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a front-die inner-drawing slider die with compact structure,...

AI Technical Summary

Problems solved by technology

[0002] Nowadays, there are various forms of injection molding products. Many products are required to be molded with undercuts during molding. This requires that the hooks can be unhooked without damaging the product when demoulding. Among them, the mechanical slip-out undercuts are required. The mechanism is mainly reflected in the large / medium-sized three-plate mold point gate mold, the distance between the runner and the slider is relatively close, and the plastic material is easy to flow into the slider, resulting in a decrease in the production of products and a long maintenance cycle. In addition, mold maintenance It is also very complicated, and a lot of work needs to be done during maintenance, which will affect the later production schedule

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