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Plastic gear injection mold with cooling molding function

A technology of plastic gears and injection molds, applied in the field of injection molds, can solve the problems of affecting the product image of the enterprise, affecting the service life of gears, hollowing, etc., and achieve the effects of reducing hollowing, speeding up the setting work, and simple structure

Inactive Publication Date: 2016-05-11
重庆和佳机械部件制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the commonly used production method of plastic gears is to use injection molds for injection molding. The production speed is fast and the qualified products are very high. However, the current gear injection molds are affected by the ambient temperature during the production of injection molding, and the produced gears sometimes appear hollow in the middle. Phenomenon, which affects the service life of the gear, and affects the image of the company's products

Method used

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  • Plastic gear injection mold with cooling molding function
  • Plastic gear injection mold with cooling molding function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Such as figure 1 , figure 2 As shown, the plastic gear injection mold with cooling molding, the plastic gear injection mold with cooling molding, includes a workbench 8, an injection upper mold 1 and an injection lower mold 6 that cooperate with each other, and the injection lower mold 6 is installed on the lower template 7, and the lower mold The template 7 is installed on the workbench 8, the top of the injection molding upper mold 1 is installed on the upper template 3, guide pillars 4 are vertically arranged on the workbench 8 on the left and right sides of the lower template 7, and guide sleeves are set on the guide pillars 4 5. The guide sleeves 5 are correspondingly fixed on the upper mold plate 3, and the outer periphery of the injection mold 1 is covered with a thermal insulation sleeve 2. The thermal insulation sleeve 2 is made of aluminum alloy material, and a first cooling chamber 9 is opened in the wall of the thermal insulation sleeve 2. , the cross sect...

Embodiment 2

[0019] On the basis of the first embodiment, the wall thickness of the thermal insulation jacket 2 is changed to 55 mm; the distance between the first cooling cavity 9 and the side wall of the thermal insulation jacket 2 is changed to 15 mm. Others are the same as embodiment one.

Embodiment 3

[0021] On the basis of the first embodiment, the wall thickness of the thermal insulation jacket 2 is changed to 60 mm; the distance between the first cooling cavity 9 and the side wall of the thermal insulation jacket 2 is changed to 20 mm. Others are the same as embodiment one.

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Abstract

The invention relates to a plastic gear injection mold with the cooling molding function and belongs to the technical field of injection molds. The plastic gear injection mold comprises a workbench, an upper injection mold body and a lower injection mold body, wherein the upper injection mold body and the lower injection mold body coordinate with each other. The lower injection mold body is installed on a lower template, and the lower template is installed on the workbench. The top of the upper injection mold body is installed on an upper template. Guide pillars are vertically arranged at the left side and the right side of the lower template on the workbench. The guide pillars are sleeved with guide sleeves. The guide sleeves are correspondingly fixed on the upper template respectively. The upper injection mold body is sleeved with a warm keeping cover made of aluminum alloy materials. A first cooling cavity is formed in the wall of the warm keeping cover. A groove is downwards formed in the top of the upper template. A heat conduction aluminum block for conducting heat is inlaid in the groove. By means of the plastic gear injection mold, molding of products obtained after injection is effectively accelerated, and the percent of pass and productivity of the products are increased.

Description

technical field [0001] The invention relates to a plastic gear injection mold with cooling molding, which belongs to the technical field of injection molds. Background technique [0002] Gear transmission is a common transmission mode in people's life, and its transmission stability is very high, and its service life is long. With the continuous advancement of science and technology, more and more gears are made of plastic, which are mainly used in an industry with a small transmission torque. The production cost is low, the transportation cost is low, and the safety and maintenance are also convenient. At present, the commonly used production method of plastic gears is to use injection molds for injection molding. The production speed is fast and the qualified products are very high. However, the current gear injection molds are affected by the ambient temperature during the production of injection molding, and the produced gears sometimes appear hollow in the middle. Phen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/26B29C45/73
Inventor 胡维秀
Owner 重庆和佳机械部件制造有限公司
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