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Injection molding processing method and device

A technology for injection molding processing and sealing units, which is applied in the field of injection molding processing, can solve problems such as the inability to eliminate the influence of oxygen, and achieve the effects of wide application range, elimination of thermal oxygen degradation, and reduction of decomposition rate

Inactive Publication Date: 2019-10-18
CHONGQING BALING AUTO PARTS
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing injection molding and extrusion technologies and forms cannot eliminate the effects of oxygen

Method used

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  • Injection molding processing method and device
  • Injection molding processing method and device
  • Injection molding processing method and device

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0043] refer to Figure 1-5 , a kind of injection molding processing method, comprises the following steps:

[0044] S1, start and debug the injection molding processing equipment in a normal air environment;

[0045] S2, moving the debugged injection molding processing equipment 32 to the sealing unit 2 in the power-on state;

[0046] S3, using the nitrogen generating unit 1 to fill the sealing unit 2 with nitrogen, so that a hypoxic or oxygen-free environment is formed in the sealing unit 2, and the end of the sealing unit 2 far away from the nitrogen generating unit 1 is connected to the outside and provided with an exhaust port 13;

[0047] S4, using the feedin...

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Abstract

The invention discloses an injection molding processing method. The method comprises the following steps that S1, starting and debugging are carried out on injection molding processing equipment in aconventional air environment; S2 ,the debugged injection molding processing equipment is moved to a sealing unit in a starting state; S3, the sealing unit is filled with nitrogen by utilizing a nitrogen generating unit, so that a low-oxygen or oxygen-free environment is formed in the sealing unit, and the end, far away from the nitrogen generating unit, of the sealing unit is connected with the outside to be provided with an exhaust port; and S4, a feeding unit is used for feeding the injection molding processing equipment, and a product produced through injection molding of the injection molding processing equipment moves to the outer side of the sealing unit through a discharging mechanism. The invention further discloses an injection molding processing device. The injection molding processing device comprises the feeding unit, the sealing unit, the nitrogen generating unit, the injection molding processing equipment and the discharging unit. According to the method, the thermal oxygen degradation caused by oxygen factors in the material processing process can be better reduced or eliminated, so that the smell, VOC and the like caused by degradation of the high polymer product (plastics, elastomer and the like) due to oxygen are reduced.

Description

technical field [0001] The invention relates to the technical field of injection molding, in particular to an injection molding method and device. Background technique [0002] Existing extrusion granulation technology uses high temperature heating and screw shearing to melt and mix the plastic base material and various additives and extrude through the machine head, and then pelletize to form plastic particles. [0003] Existing injection molding technology uses high-temperature heating and screw shearing to plasticize raw materials (such as plastic particles, elastomers, etc.) and then injects them into molds to form plastic products with a certain shape. [0004] In the process of injection molding or extrusion, high temperature and shear force will promote the decomposition of raw materials in the process of processing. The presence of oxygen makes the raw materials prone to thermal oxygen degradation in the process of injection molding or extrusion, the decomposition ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/17B29C45/18B29C45/42
CPCB29C45/1701B29C45/18B29C45/4225
Inventor 周勇徐黎刚张建军
Owner CHONGQING BALING AUTO PARTS
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