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A micro-foaming injection mold exhaust structure

An injection mold and micro-foaming technology, which is applied in the field of micro-foaming injection mold exhaust structure, can solve the problems of easy blockage of exhaust grooves, easy entry of gas into the molding cavity, and generation of defective products, so as to improve the yield rate and good sealing anti-clogging effect

Active Publication Date: 2021-04-16
杭州矩阵通信工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a micro-foaming injection mold exhaust structure, which solves the problem that the exhaust groove is easily blocked and the gas easily enters the molding cavity to produce defective products

Method used

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  • A micro-foaming injection mold exhaust structure
  • A micro-foaming injection mold exhaust structure
  • A micro-foaming injection mold exhaust structure

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Embodiment Construction

[0035] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention.

[0036] Please see attached Figure 1 to Figure 6 ,Such as figure 1 and image 3 The exhaust structure of a micro-foaming injection mold shown includes a top plate 10, an upper mold 20 and a lower mold 30, the upper mold 20 is arranged under the top plate 10, and the lower mold 30 is arranged on the upper Below the mold 20, there is an exhaust groove 21 between the upper mold 20 and the lower mold 30, and the exhaust groove 21 is used to discharge excess gas. One side of the lower mold 30 is provided with a cavity 31, so One side of the cavity 31 has an inclined surface 311, and a connecting hole 32 is provided on the inclined surface 311. The axis of...

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Abstract

The invention discloses an exhaust structure of a micro-foaming injection mold, which comprises a top plate, an upper mold, a lower mold, an exhaust needle and an exhaust assembly. The cavity of the lower mold is provided with a connecting hole, and the exhaust needle It is arranged in the connecting hole, and the exhaust assembly is installed on the inclined surface of the lower mold. The exhaust structure of the micro-foaming injection mold provided by the present invention can achieve a good exhaust effect and the exhaust groove is not easy to be blocked. Therefore, it can better meet the production requirements and make the molding of microfoamed products better.

Description

technical field [0001] The invention relates to the technical field of micro-foaming injection molds, in particular to a micro-foaming injection mold exhaust structure. Background technique [0002] The micro-foaming injection molding process is a new precision injection molding technology. It injects nitrogen or carbon dioxide into the rubber to make the rubber foam, and then injects the foamed rubber into the mold. This is mainly achieved by the expansion of the pores. To obtain the finished product, the micro-foaming injection molding process can not only reduce the weight of the part, shorten the molding cycle, but also improve the warping deformation of the part and improve the dimensional stability of the part, but often produce redundant parts during the molding process. Gas, if these gases are not discharged, it will greatly affect the quality of the finished product. The exhaust groove designed by the traditional injection mold has a simple structure. After a period...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/34
CPCB29C45/34
Inventor 谭小红
Owner 杭州矩阵通信工程有限公司