Improved process for forming plastic clothes rack

Abstract

The invention relates to a plastic injection technique, especially the improvement for molding plastic coat hanger, wherein the section chamber mould and section core mould can be closed and separated; when they are closed, they form the coat hanger section chamber between them; pouring the fused plastic from the top of section chamber mould, via the pour open at the top into the coat hanger section chamber, to be solidified and remove the mould; then slicing the plastic coat hanger, and drilling the thin layer at hook hole at the slicing cut. The invention can improve the producing efficiency and reduce the waste material.

Description

technical field [0001] The invention relates to plastic injection molding technology, in particular to a molding method for making plastic hangers. Background technique [0002] Refer to the shape of the existing mainstream plastic hangers figure 1 As shown, its cross-section is inverted U-shaped. Clothes hanger injection mold is mainly made up of cavity mold 1 and core mold, is shaped on sprue runner 4 in cavity mold. The existing hanger injection molding method is: the gate 3 of the mold is located on one side of the inverted U-shaped bottom, and the cavity mold position at the top of the hanger cavity 2 is shaped on a core-pulling channel 5 for forming the hanger hook hole. Due to the long gate runner, the molten plastic needs to be injected from gate 3 along an inverted U-shaped path, and the injection pressure loss is large, resulting in insufficient filling of the cavity at the far end from the gate, uneven thickness of the product, and affecting quality ; Because t...

AI Technical Summary

Problems solved by technology

Due to the long gate runner, the molten plastic needs to be injected from gate 3 along an inverted U-shaped path, and the injection pressure loss is large, resulting in insufficient filling of the cavity at the far end from the gate, uneven thickness of the product, and affecting quality ;Because the gate runner is long, the cooling time is relatively prolonged, and the work efficiency is low; there are many waste materials, the cost is high, and the scars left after the gate is cut also affect the appearance of the hanger

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