Water-assisted injection forming die of automobile cooling water pipe and using method thereof

A technology for cooling and forming molds for automobiles, used in applications, tubular items, household appliances, etc.

Inactive Publication Date: 2013-05-22
ZHEJIANG CENTURY HUATONG AUTOMOTIVE PART
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the method of water-assisted molding

Method used

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  • Water-assisted injection forming die of automobile cooling water pipe and using method thereof
  • Water-assisted injection forming die of automobile cooling water pipe and using method thereof

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Embodiment Construction

[0016] Such as figure 1 and figure 2 As shown, the present invention discloses a water auxiliary forming mold for automobile cooling water pipes, comprising a movable mold 1 and a fixed mold 2, a mold cavity 3 is provided on the joint surface of the movable mold 1 and the fixed mold 2, and the mold cavity 3 One end of the cavity is the pouring port 3, which is used to connect with the injection molding machine. The innovation is mainly that the other end of the cavity 3 has a water injection port 12, and the water injection port 12 is used to connect with the water auxiliary equipment. connected, the cavity 3 is divided into a water inlet cavity 4 and a water outlet cavity 5, the water inlet cavity 4 and the water outlet cavity 5 are respectively matched with the shape of the water inlet pipe and the water outlet pipe of the automobile cooling water pipe, including its surface In this way, the water inlet pipe and the water outlet pipe can be injection-molded simultaneously ...

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Abstract

The invention discloses a water-assisted injection forming die of an automobile cooling water pipe. The water-assisted injection forming mold comprises a moving die and a fixed die; a die cavity is arranged on a bonding surface of the moving die and the fixed die; a sprue gate is arranged at one end of the die cavity; the water-assisted injection forming die is characterized in that a water injection port is arranged at the other end of the die cavity; the die cavity is divided into a water inlet pipe cavity and a water outlet pipe cavity; a partition section is arranged between the water inlet pipe cavity and the water outlet pipe cavity; a port of the die cavity connected with an injection molding machine is provided with a feeding assisted section, and a port of the die cavity connected with a water-assisted water spraying head is provided with a water spraying assisted section; a pressure sensor is arranged at the sprue gate of the die; and a hot runner valve needle is arranged at the water injection port. The using method of the water-assisted injection forming die comprises the following steps of injection molding, water injection and water returning. Through the application of the water-assisted injection forming die of the automobile cooling water pipe and the using method disclosed by the invention, the water-assisted forming method is creatively applied in the injection molding of the automobile cooling water pipe, and the automobile cooling water pipe is cast by adopting the traditional injection molding method.

Description

technical field [0001] The invention relates to an injection mold for an automobile cooling water pipe, in particular to a mold for manufacturing an automobile cooling water pipe by a water-assisted molding method and a use method thereof. Background technique [0002] The automobile cooling water pipe consists of a water inlet pipe and a water outlet pipe. Through manual welding, its bending and welding process need a lot of labor, and the reliability and uniformity of the quality of the automobile cooling water pipe processed in this way are poor, the weld seam is easy to rust, and the performance of vibration fatigue resistance is poor. Difference. Making automobile cooling water pipes by plastic material through injection molding can avoid various defects of stainless steel seamless steel pipe material, but because the pipe body of automobile cooling water pipes is irregularly curved, ordinary injection molding cannot perform core pulling on the inside of the pipe cavit...

Claims

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Application Information

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IPC IPC(8): B29C45/26B29C45/17B29C45/03B29L23/00
Inventor 王一锋谢德源钱海华朱金茂叶国权杭兴龙经岗
Owner ZHEJIANG CENTURY HUATONG AUTOMOTIVE PART
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