Injecting structure of high-molecular object forming mold

Abstract

The invention provides an injecting structure of a high-molecular object forming mold. The injecting structure comprises a first mold part and a second mold part separated from each other, and a thirdmold part arranged between the first mold part and the second mold part; a supply position of external raw materials is positioned on the side, far from the second mold part, of the first mold part;and further, the external raw materials are supplied into a mold chamber between the second mold part and the third mold part. The injecting structure further comprises a channel penetrating through the first mold part; and through the channel, the external raw materials can be directly injected into the mold chamber through a runner formed in the third mold part from the supply position without entering the mold chamber after flowing through the first mold part and the third mold part in sequence in the prior art, so that the purpose of the invention is achieved.

Description

technical field [0001] The invention relates to the polymer molding technology, in particular to a material injection structure of a molding mold for polymer objects. Background technique [0002] The mold used in the polymer molding processing technology forms a mold chamber space inside the mold, so that the polymer raw material is molded in the mold chamber to form an article of a specific shape, and among them, the polymer raw material Filling in the mold chamber, the known technology has disclosed different feeding techniques such as mold opening filler and mold closing injection, the former will open the mold to open the mold chamber, so that the polymer raw material can be directly placed into the open mold chamber , the latter makes the mold close, and in the state where the mold chamber is closed, through the preset flow channel on the mold, a flow path for the heated and molten polymer raw material is formed, so that the polymer raw material can be injected from th...

AI Technical Summary

Problems solved by technology

[0004] In the multi-layer mold disclosed by a plurality of mold sheets stacked together in the Chinese Taiwan No. M485818 patent, mold chambers of appropriate shape are usually defined between adjacent mold sheets. Therefore, in order to make the upper supply The raw material can flow down into the lowermost mold chamber space. In the known technology, perforations are respectively provided on each die, and the perforations on each die are aligned coaxially with other preset perforations when the mold is closed. In series, it becomes a flow channel for the raw material to flow down into the mold chamber space; although this technology has been widely used in polymer molding processing technology, but because it divides the single flow channel On different dies, in addition to causing difficulty in processing, it is also difficult to ensure the tightness between the butt perforations when different dies are stacked, so it is easy to produce seepage of raw materials. Obviously, this known technology has not yet reached Complete

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