Double-layer injection mold for PVC trunking switch box cover

A double-layer injection molding and switching technology, which is applied to household appliances, other household appliances, household components, etc., can solve the problems of low production efficiency, achieve the effects of increasing product volume, improving production efficiency, and reducing energy consumption

Pending Publication Date: 2020-03-27
LIANSU TECH DEV GUIYANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of low production efficiency of existing single-layer injection molds, the present invention provides a double-layer injection mold for PVC trunking switch box cover

Method used

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  • Double-layer injection mold for PVC trunking switch box cover
  • Double-layer injection mold for PVC trunking switch box cover
  • Double-layer injection mold for PVC trunking switch box cover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A double-layer injection mold for PVC trunking switch box cover, including a front mold assembly and a rear mold assembly matched with it, the front mold assembly and the rear mold assembly are provided with a guide mechanism, and the front mold assembly There is a pouring system connected with the front mold assembly and the rear mold assembly, and the push-out mechanism is connected to the rear mold assembly; there are three parting surfaces between the front mold assembly and the rear mold assembly. Wherein the first parting surface 1 and the third parting surface 3 are respectively provided with a first in-mold cutting mechanism 10 and a second in-mold cutting mechanism 30 for cutting the sprue and gate in the pouring system.

[0027] The working principle of this embodiment is as follows: the injection mold is closed, and the material is molded through injection molding, mold filling, pressure keeping and cooling. After the product is injected, the injection mold is...

Embodiment 2

[0030] A double-layer injection mold for PVC trunking switch box cover, such as Figure 1~3 As shown, it includes a front mold assembly and a rear mold assembly matched with it. The front mold assembly and the rear mold assembly are provided with a guide mechanism, and the front mold assembly is provided with the front mold assembly and the rear mold assembly. A pouring system in which the mold components are connected, and the rear mold component is connected with a push-out mechanism; there are three parting surfaces between the front mold component and the rear mold component, wherein the first parting surface 1 and the third The parting surface 3 is provided with a first in-mold cutting mechanism 10 and a second in-mold cutting mechanism 30 for cutting the sprue and gate in the pouring system.

[0031] The arrangement of each component or mechanism mentioned above in this embodiment will be described in detail below.

[0032] The front mold assembly includes a panel 11, a...

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Abstract

The invention discloses a double-layer injection mold for a PVC trunking switch box cover, which comprises a front mold assembly and a rear mold assembly matched with the front mold assembly. Guide mechanisms penetrate the front mold assembly and the rear mold assembly, a gating system communicating with the front mold assembly and the rear mold assembly is arranged on the front mold assembly, andthe rear mold assembly is connected with an ejecting mechanism; and three parting surfaces are arranged between the front mold assembly and the rear mold assembly, wherein a first parting surface anda third parting surface are respectively provided with first in-mold cutting mechanisms and second in-mold cutting mechanisms for shearing a main runner and a gate in the gating system. By adopting amold structure with the three parting surfaces, products are ranked and superimposed into upper and lower layers, and by adopting an in-mold cutting technology in which the main runner and the gate can be cut at the same time, the main runner is not stuck in a mold after breaking off; and after the parting surfaces are opened, both the products and runners can smoothly fall off. Without increasing the length and width of the mold, the product quantity can be doubled, thereby reducing energy consumption and improving production efficiency.

Description

technical field [0001] The invention relates to the technical field of injection molds, in particular to a double-layer injection mold for a switch box cover of a PVC trunking. Background technique [0002] Injection molding is a kind of plastic processing technology. It is to melt plastic particles at a certain temperature and inject them into various molds through injection nozzles to become various plastic products used in people's daily life. The advantages of injection molding are fast production speed and high production efficiency. High efficiency, automatic operation, various designs and colors, changeable shapes and sizes, accurate product size, easy replacement of products, and the ability to form complex-shaped parts. It is suitable for mass production and complex-shaped products and other molding processing fields. Now commonly used PVC trunking switch box cover injection molds generally adopt a single-layer structure, and the number of products on one parting su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/26B29C45/27B29C45/32B29C45/38B29C45/40B29L31/34
CPCB29C45/2606B29C45/32B29C45/322B29C45/38B29C45/401B29L2031/3481
Inventor 杨向荣
Owner LIANSU TECH DEV GUIYANG
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