Multi-port injection molding plastic material part forming device and process thereof

Abstract

The invention discloses a multi-port injection molding plastic material part forming device. The forming device comprises a first injection molding part and at least two second injection molding parts, the second injection molding parts can be connected to flow dividing channels at different positions of the first injection molding part, and the fine adjustment of the positions of the second injection molding parts in sliding grooves can be conducted. First glue inlets and second glue inlets are alternately formed in an injection mold; firstly injection molding is conducted on the first glue inlets; when glue is close to the second glue inlets, injection molding is conducted on the second glue inlets; injection molding of all of the first glue inlets and the second glue inlets is completed, the cavity of the injection mold is filled with the glue, and plastic products are subjected to injection molding. The problem of fusion lines on the surfaces of long strip products is solved, so that the surfaces of the products are more smooth and beautiful, and the mechanical strength of the products and the production efficiency of the injection mold are improved. By adopting a technology ofcontrolling the order of glue injection molding, the surfaces of the products are more smooth, the post-processing workload of the products is reduced, and the quality of the products is improved.

Description

technical field [0001] The invention relates to the field of plastic injection molding, in particular to a multi-port injection controllable plastic part molding device applied to elongated plastic parts. Background technique [0002] Long plastic products are widely used in many industries, and some plastic products have higher structural requirements, thereby ensuring the appearance and performance requirements of the products. In the prior art, it is mainly single-point gate injection molding or simultaneous injection of multiple glue inlets. [0003] In single-point gate injection molding, the injection pressure required will be very high, the production will be unstable, and the product surface shrinkage and burr cannot be resolved. Multi-port injection at the same time requires less injection pressure and more stable production, but multiple fusion lines are prone to appear on the surface of the product, and the fusion lines on the surface of the product are processed...

AI Technical Summary

Problems solved by technology

[0003] In single-point gate injection molding, the injection pressure required will be very high, the production will be unstable, and the product surface shrinkage and burr cannot be solved

Multi-port injection at the same time requires less injection pressure and more stable production, but multiple fusion lines are prone to appear on the surface of the product, and the fusion lines on the surface of the product are processed in the later stage. The post-processing of this method is complicated and the production cycle is long. Insufficient mechanical strength and unattractive appearance;

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