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Embedding pin for injection mold

An injection mold and needle insert technology, which is applied in the field of insert needles of injection molds, can solve the problems that the cooling water channels of insert needles are not well combined and the cooling range is small, so as to shorten the product molding cycle, the cooling range is large, and the installation and disassembly are convenient. Effect

Pending Publication Date: 2018-10-09
CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems in the prior art that the structure of the insert is not well combined with the cooling water channel and the cooling range is small, the present invention proposes an insert for injection molds, which solves the above technical problems

Method used

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Embodiment Construction

[0024] The content of the present invention will be further described below in conjunction with the accompanying drawings.

[0025] like Figure 1-2 As shown, this embodiment provides an insert for an injection mold, which includes an insert body 1 and a cooling pipe 2. A first cavity extending axially along the insert body 1 is provided inside the insert body 1 for cooling The top end of the tube 2 protrudes into the first cavity for cooling the insert body 1 and the injection molded product. There is a gap between the cooling pipe 2 and the first cavity, the top surface of the cooling pipe 2 is in contact with the inner top surface of the first cavity, and the top of the cooling pipe 2 is provided with a groove connecting the inside of the cooling pipe 2 and the first cavity 21. The cooling pipe 2 communicates with the water inlet pipe 5, and the first cavity communicates with the water outlet pipe 6.

[0026] The head of the insert body 1 participates in the injection mol...

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Abstract

The invention relates to the field of injection molds, in particular to an embedding pin for an injection mold. The embedding pin for the injection mold comprises an embedding pin body and a cooling pipe, wherein a first cavity extending in the axial direction of the embedding pin body is arranged inside the embedding pin body; the top end of the cooling pipe extends into the first cavity; a gap is formed between the cooling pipe and the first cavity; the top end surface of the cooling pipe is in contact with the inner top surface of the first cavity; a groove body communicated with the insideof the cooling pipe and the first cavity is arranged on the top end of the cooling pipe; the cooling pipe is communicated with a water inlet pipe; the first cavity is communicated with a water outletpipeline. The problems that the structure of the embedding pin cannot be well combined with the cooling water path, and the cooling range is small in the prior art can be solved.

Description

technical field [0001] The invention relates to the field of injection molds, in particular to a needle insert for injection molds. Background technique [0002] The mold is one of the factors that have a greater impact on the product quality and pass rate of each component cavity in the automotive lamps. The mold affects more than 50% of the problem points of product quality and pass rate. Uniform mold temperature can achieve uniform cooling of products, minimize product defects, and shorten molding cycle. Insert pins are the most frequently used structures in mold design. The use of pins makes the structure of the mold more abundant, and the mold tends to be more high-end. [0003] The design of no water channel in the insert will easily lead to uneven cooling of the product. First, it will cause deformation of the product, and second, it will cause defects such as sink marks and stress marks in the product. These defects have seriously affected the product appearance q...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/73B29C45/26
CPCB29C45/2602B29C45/73
Inventor 高禄武陈春来
Owner CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
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