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Low-pressure injection molding mold

A mold and fixed mold technology, applied in the field of injection molds, can solve the problems of poor injection molding stability, high manufacturing cost, complex mold structure, etc., and achieve the effects of uniform pressing force, improved stability, and simple structure

Active Publication Date: 2013-03-20
CHENGDU AEROSPACE MOLD & PLASTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the mold of this structure, the compression effect of the fabric during the injection molding process is better, and the appearance of the product can be basically guaranteed. However, because the metal compression frame adopts an integral structure and requires other auxiliary facilities such as cylinders, the structure of the mold It is very complicated and the manufacturing cost is high; the metal compression frame is inconvenient to install and use, and the metal compression frame is not easy to control the compression force of the fabric, resulting in poor stability of the mold injection molding

Method used

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Embodiment Construction

[0021] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] A low-pressure injection mold as shown in the figure includes a fixed mold 1, a core 2 and a material pressing mechanism. The core 2 is arranged on the fixed mold 1. The fabric pressing mechanism is composed of a plurality of pressing devices 3. The core A plurality of grooves 10 are arranged around 2, and the pressing device 3 is fixedly installed in the grooves 10. The fabric pressing mechanism can select and set an appropriate number of pressing devices 3 according to the size of the core 2 and the complexity of the structure of the core 2, and the pressing devices 3 are used as a separate module, which simplifies the design of the fabric pressing mechanism And manufacturing, so that the structure of the entire fabric pressing mechanism and the mold is relatively simple, there is no special requirement for the structure of the mold, ...

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Abstract

The invention discloses a low-pressure injection molding mold comprising a fixed mold, a mold core, and a surface material pressing mechanism. The mold core is arranged on the fixed mold. The surface pressing mechanism is composed of a plurality of pressing devices. A plurality of recesses are provided around the mold core. The pressing devices are fixedly arranged in the recesses. The pressing devices are composed of limiting blocks, pins, and elastic elements. The limiting blocks are fixedly arranged on the fixed mold. At least one limiting hole is arranged on each limiting block. The pins and the elastic elements are arranged in the limiting holes. One part of the pin extends out of the limiting hole. The elastic elements are arranged below the pins. The other ends of the elastic elements bear against the fixed mold. The mold has the advantages of simple structure, low cost, high product molding qualification rate, and stable and reliable application.

Description

technical field [0001] The invention relates to the technical field of injection molds, in particular to a low-pressure injection mold capable of uniformly compressing and arranging injection fabrics in mold cavities during mold clamping during low-pressure injection molding. Background technique [0002] With the progress of the times, the automobile industry is also experiencing rapid development, and people's requirements for the quality of automobiles are getting higher and higher, especially the interior parts of automobiles, which directly affect the intuitive impression of drivers and passengers on automobiles. In the past, interior parts such as pillars and door panels of cars were usually ordinary injection molded parts with hard plastic on the surface, and the appearance and feel were poor. In order to improve its appearance and feel, the surfaces of interior parts such as pillars and door panels of general automobiles are covered with a layer of fabric fabric. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/26B29C45/14
Inventor 袁伟王春生周海黄崇邦
Owner CHENGDU AEROSPACE MOLD & PLASTIC CO LTD
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