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A mold temperature and pressure control injection molding process and control system for high-gloss injection molded parts

An injection molding process and pressure control technology, which is applied in the field of high-gloss injection mold temperature and pressure control injection molding process and control system. The effect of uniformity, stress reduction and deformation avoidance

Active Publication Date: 2022-02-08
惠州市新智源模具科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the shortcomings of poor mold temperature control of high-gloss injection molded parts in the prior art, resulting in plastic deformation, warping and shrinkage of injection molded parts, and the proposed injection molding process and control system for mold temperature and pressure control of high-gloss injection molded parts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A mold temperature and pressure control injection molding process for high-gloss injection molded parts, which comprises the following steps:

[0022] S1. Mold closing: the molds are closed, the mold has a built-in steam heating temperature control system, and the steam heating temperature control system includes balanced conduction pipes, and the conduction pipes are distributed around the inner walls of the movable mold and the fixed mold in a serpentine shape , the movable mold and the fixed mold are equipped with five sets of the conduction pipes, the conduction pipes are arranged on the inner wall of the movable mold and the fixed mold, and the inner wall of the mold is coated with a layer of high thermal conductivity material, such as pyrolysis Graphite etc. are used as the mold cavity wall, and a layer of low thermal conductivity material, such as oxide, is sandwiched between the mold cavity wall and the inner wall of the mold. The mold cavity wall is preheated af...

Embodiment 2

[0032] A mold temperature and pressure control injection molding process for high-gloss injection molded parts, which comprises the following steps:

[0033] S1. Mold closing: the molds are closed, the mold has a built-in steam heating temperature control system, and the steam heating temperature control system includes balanced conduction pipes, and the conduction pipes are distributed around the inner walls of the movable mold and the fixed mold in a serpentine shape , the movable mold and the fixed mold are equipped with five groups of the conduction pipes, the conduction pipes are arranged on the inner wall of the movable mold and the fixed mold, and the inner wall of the mold is coated with a layer of high thermal conductivity material, such as metal material As the mold cavity wall, a layer of low thermal conductivity material, such as a polymer material, is sandwiched between the mold cavity wall and the inner wall of the mold, and the mold cavity wall is preheated after...

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Abstract

The invention relates to a mold temperature and pressure control injection molding process and a control system for high-gloss injection molded parts, and designs a mold temperature and pressure control injection molding process for high-gloss injection molded parts, which includes the following steps: S1, mold closing. S2, inputting high-temperature steam. S3, injection molding. S4, discharge water vapor. S5, put in cooling water. S6, remove the cooling water. S7, mold opening. A steam heating temperature control system for high-gloss injection molded parts that implements the above injection molding process. The steam heating temperature control system includes a moving mold steam heating temperature control system and a fixed mold steam heating temperature control system. The steam heating temperature control system includes external pipes and steam boiler equipment . The invention adopts a well-balanced pipeline in the mold, uses water or steam of different temperatures at different stages and cooperates with the preheating of the material with high thermal conductivity in the mold, realizes rapid heating or cooling of the mold surface, and improves the quality of the product. surface finish.

Description

technical field [0001] The invention relates to the technical field of mold temperature control of high-gloss injection molded parts, in particular to an injection molding process and a control system for controlling mold temperature and pressure of high-gloss injection molded parts. Background technique [0002] Injection molding is a method of producing shapes for industrial products, and products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding molding method and die casting method. Injection molding machine (referred to as injection machine or injection molding machine) is the main molding equipment for making thermoplastic or thermosetting materials into various shapes of plastic products using plastic molding molds. Injection molding is realized through injection molding machines and molds. The use of injection molding processes to form plastic parts for use in component housings is well k...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/73B29C45/78
CPCB29C45/7306B29C45/7312B29C45/7337B29C45/78B29C2045/7318B29C2945/76531B29C2945/76732
Inventor 顾立如
Owner 惠州市新智源模具科技有限公司
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