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Vacuum injection molding die

A vacuum injection molding and mold technology, which is applied in the field of molds, can solve problems such as uneven product shape, uneven force of demolding components, and strain on thin product positions.

Inactive Publication Date: 2015-10-07
昆山—邦泰汽车零部件制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For existing injection molds, when the product is being molded, because there is air in the molding groove, it is easy to form air bubbles during the molding process or the product shape is uneven due to air pressure. Thinner product position, the existing technology has not solved such problems

Method used

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  • Vacuum injection molding die
  • Vacuum injection molding die

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Embodiment Construction

[0017] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0018] The vacuum injection mold includes: an upper mold base 1, a lower mold base 2, an upper template 3 under the upper mold base 1, a lower template 4 fixed on the lower mold base 2, and a connection between the upper mold base 1 and the upper mold base 3 The telescopic part between them, as for the material injection port 5 on the lower formwork 4, is connected to the suction and blowing assembly of the upper formwork 3; as a preference, the telescopic part is an electric telescopic rod 6. Vacuum the molding tank before injection molding, which not only facilitates the entry of materials into the molding tank, but also prevents air bubbles or uneven product shapes due to air pressure when the product is molded. The molding groove is opened from the inside out, and the demoulding is clean and neat.

[0019] The suction and blowing ass...

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PUM

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Abstract

The invention discloses a vacuum die. The vacuum die comprises an upper die base, a lower die base, an upper die plate arranged under the upper die base, a lower die plate fixed on the lower die base, a telescopic piece connected between the upper die base and the upper die plate, a sprue arranged on the lower die plate, and a wind sucking and blowing assembly connected to the upper die plate. Vacuum is pumped from a molding tank before injection molding, so a material can conveniently enter the molding tank, and generation of bubbles generated in the molding process of a product or uneven product shape induced by gas pressure is avoided; air is injected to the molding tank during demolding, so the molding tank is opened outward by using an air pressure; and complete and efficient demolding avoids pulling damages of the product, so the injection molding efficiency is improved, and the quality of the product is improved.

Description

technical field [0001] A mold, especially an injection mold. Background technique [0002] Injection mold is a tool for producing plastic products; it is also a tool for giving plastic products complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain complex-shaped parts. Specifically, it refers to injecting the heated and melted material into the mold cavity by high pressure, and after cooling and solidifying, a molded product is obtained. For existing injection molds, when the product is being molded, because there is air in the molding groove, it is easy to form air bubbles during the molding process or the product shape is uneven due to air pressure. Thinner product position, prior art has not solved such problem yet. Contents of the invention [0003] In order to solve the deficiencies of the prior art, the purpose of the present invention is to provide a vacuum injection mold, which vacuumizes the m...

Claims

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Application Information

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IPC IPC(8): B29C45/34B29C45/43
CPCB29C45/34B29C45/43
Inventor 郑坚雄
Owner 昆山—邦泰汽车零部件制造有限公司
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