Inner vibration sequence injection molding die device and injection molding technique thereof

Abstract

The invention relates to an injection mold device with internal vibration sequence and corresponding injection molding craft, comprising a heating body (6) arranged in a hot runner board (3) and a heating ring (1) arranged out of the hot runner board (3), wherein, the heating ring (1) is connected with the heating body (6) through a hot nozzle (18) and a hot nozzle cushion cover, a reciprocating straight line motion mechanism (A) is arranged on the heating body (6) and a plurality of spacers (7) are arranged on the outer side of the heating body (6). The injection molding craft of the invention comprises the following steps: 1) the heating body (6) can heat the plastic material in the hot runner board (3); 2) the reciprocating straight line motion mechanism (A) can move reciprocally to realize the vibration for the melted high polymer; 3) the spacers (7) can separate the melted high polymer from the nuzzle, control the frequency of reciprocating movement of the reciprocating straight line motion mechanism (A) to make the melted high polymer enter the different positions of the mould cavity according to priority for the purpose of casting in subsequence. The invention has the advantages that the new injection molding device with vibration subsequence and injection molding craft can effectively reduce the product defects, enhance the product mechanical performance, strengthen the competitive power of product, reduce the production costs and increase the economic benefits the and social benefits.

Description

Technical field: [0001] The invention relates to an internal vibration sequential injection mold device and its injection molding process, in particular to an internal vibration sequential injection mold device and its injection molding process for injection molding large-scale mold products, belonging to the transformation technology of the injection mold device and its injection molding process. Background technique: [0002] Now large-scale molds use multiple gates, and the mold is heated outside the hot runner. The disadvantage is that it consumes a lot of power. In addition, when the traditional injection molding is filled with the melt, because the mold wall temperature (40 ° C ~ 50 ° C) is generally low, the injection molded parts always show the characteristics: the shape of the skin and the core layer. For amorphous polymers, it is common to form a thin layer of oriented material near the surface of the cold die, but for heterogeneous or crystalline polymers, three ...

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Problems solved by technology

At the same time, due to the complexity of polymer molding, plastic parts are also prone to various defects: flash, weld lines, air pockets, shrinkage, jetting, stagnation, etc.

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