Demolding structure of long sliding block core-pulling mold and demolding method thereof

Abstract

The invention discloses a demolding structure of a long sliding block core-pulling mold. The demolding structure comprises a lower die plate, an upper die plate located above the lower die plate, a material stirring plate located above the upper die plate, a shoveling machine, a sliding block module and an oil cylinder assembly. A die cavity is formed between the upper die plate and the lower dieplate; the material stirring plate, the upper template and the lower template can realize mold opening or mold closing along the up-and-down direction; the sliding block module is fixed to the right side of the demolding structure of the long sliding block core-pulling mold. The sliding block module comprises a sliding block and an insert, one end of the insert is fixed to the sliding block, the other end of the insert protrudes into the die cavity, the oil cylinder assembly drives the sliding block and the lower die plate to move relatively, the right end of the upper die plate penetrates inthe vertical direction to form a shoveling machine hole, one end of the shoveling machine is fixed to the material stirring plate, and the other end of the shoveling machine penetrates through the shoveling machine hole to be linked with the sliding block. The shoveling machine is designed to be matched with the sliding block, so that the initial adhesive force between the insert and the injectionmolding part is removed during mold opening, the insert cannot be taken out of the injection molding part when the air cylinder assembly drives the insert to be pulled out, and the product yield is further improved.

Description

technical field [0001] The invention relates to the technical field of injection molding, in particular to a demoulding structure and a demoulding method for a long slider core-pulling mold. Background technique [0002] Plastic parts in the prior art are generally formed by injection molding of injection molds. Existing common injection molds generally include a bottom plate, a mold foot positioned above the bottom plate, a lower mold plate positioned above the mold foot, an upper mold plate positioned above the lower mold plate, and an upper mold plate located above the lower mold plate. The pick plate above the formwork and the panel above the pick plate. Generally, a male mold core is implanted in the lower template, and a female mold core is generally implanted in the upper template. The male mold core and the female mold core are molded together to form a mold cavity in the middle. Generally, the injection mold is also formed with a glue-in channel communicating with...

AI Technical Summary

Problems solved by technology

So easy to deform or impact damage to tubular plastic parts

In addition, the formation and length of the slider and cylinder also make the entire injection mold too large

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