One-mold forming injection mold for automobile AB column decoration with covering

Abstract

The invention discloses a one-mold forming injection mold for automobile AB column decoration with covering. The one-mold forming injection mold comprises a fixed mold compound plate and a movable mold compound plate, a fixed mold frame and fixed mold inserts are installed below the fixed mold compound plate, a movable mold frame and movable mold inserts are arranged on the movable mold compound plate, a hot runner frame, a hot runner plate and a hot nozzle are installed on the movable mold composite plate, two fixed mold inserts are provided, the fixed mold inserts comprise a column-A fixed mold insert and a column-B fixed mold insert, two pairs of column-A cavity surfaces are arranged on the column-A fixed mold insert, two pairs of column-B cavity surfaces are arranged on the column-B fixed mold insert, two movable mold inserts are provided, the movable mold inserts comprise a column-A movable mold insert and a column-B fixed mold insert, two pairs of column-A core surfaces are arranged on the column-A movable mold insert, two pairs of column-B core surfaces are arranged on the column-B fixed mold insert, the two pairs of column-A cavity surfaces cooperate with the two pairs of column-A core surfaces to form two pairs of column-A mold cavities, the two pairs of column-B cavity surfaces cooperate with the two pairs of column-B core surfaces to form two pairs of column-B mold cavities, and needle hanging mechanisms are arranged on the fixed mold frame, the column-A fixed mold insert and the column-B fixed mold insert.

Description

technical field [0001] The invention relates to an injection mold for forming an automobile AB pillar decorative part with cloth, and belongs to the field of injection molds. Background technique [0002] Using injection molds to produce plastic products, such as interior decoration parts of automobiles, especially the production of decorative parts on AB pillars. On the one hand, the traditional technology uses two pairs of injection molds to process and form, which requires the cost of two sets of molds and two injection molding machines. On the other hand, with the continuous development of the automobile industry, the requirements for decorative parts are getting higher and higher, such as covering the surface of the decorative parts. The traditional method is to inject the decorative parts first, and then cover If the leather is pasted on the decorative parts, the processing efficiency is low and the defective rate is high. Therefore, in recent years, some people have d...

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Problems solved by technology

[0002] Using injection molds to produce plastic products, such as interior decoration parts of automobiles, especially the production of decorative parts on AB pillars. On the one hand, the traditional technology uses two sets of injection molds to process and shape them separately, which requires the cost of two sets of molds and two injection molding machines. On the other hand, with the continuous development of the automobile industry, the requirements for decorative parts are getting higher and higher, such as covering the surface of the decorative parts. The traditional method is to inject the decorative parts first, and then cover If the leather is pasted on the decorative parts, the processing efficiency is low and the defective rate is high. Therefore, in recent years, some people have developed injection molds that process the decorative parts and the skin together.

In actual production, most of the injection molding machines are high-pressure injection molding machines, and the difficulty of integrated skin processing is that after the skin is covered on the decorative parts, due to the high temperature in the mold, steam is generated, and the high-pressure injection molding machine has no exhaust structure. , it is easy to form air bubbles between the skin and the decorative parts, so this type of injection mold is processed by a low-pressure injection molding machine. (The low-pressure injection molding machine can inject when the injection mold is not completely closed to achieve the purpose of exhaust ), but the price of the low-pressure injection molding machine is more than 2-3 times the price of the high-pressure injection molding machine, and the equipment investment is very large

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