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Quick-opened injection mold for plastic gear

A technology for plastic gears and injection molds, applied in the field of injection molds, can solve problems such as affecting the image of corporate products, hollowing, affecting the service life of gears, etc., and achieve the effect of reducing hollowing phenomenon, simple structure, and speeding up the setting work.

Inactive Publication Date: 2016-04-20
重庆和佳机械部件制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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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  • Quick-opened injection mold for plastic gear
  • Quick-opened injection mold for plastic gear

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] like figure 1 , figure 2 As shown, the injection mold for the rapid opening of plastic gears, the injection mold for the rapid opening of plastic gears, 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 formwork 7, the lower formwork 7 is installed on the workbench 8, the top of the injection molding upper mold 1 is installed on the upper formwork 3, and guide pillars 4 are vertically arranged on the workbenches 8 on the left and right sides of the lower formwork 7 respectively. 4 are equipped with guide sleeves 5, and the guide sleeves 5 are correspondingly fixed on the upper template 3, and the outer periphery of the injection molding upper mold 1 is covered with an insulation sleeve 2, the insulation sleeve 2 is made of aluminum alloy material, and the guide post 4 is sleeved for fast The rubber sleeve 9 of mold opening, the height of the top surfa...

Embodiment 2

[0019] On the basis of Embodiment 1, further changes are made, and the wall thickness of the thermal insulation cover 2 is 60mm; The thickness becomes 30mm; the distance between the cooling cavity 9 and the side wall of the insulation cover 2 becomes 15mm. Others are the same as embodiment one.

Embodiment 3

[0021] On the basis of Embodiment 1, further change, the cover wall thickness of the thermal insulation cover 2 is 55mm; The thickness becomes 25mm; the distance between the cooling chamber 9 and the side wall of the insulation cover 2 becomes 20mm. Others are the same as embodiment one.

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Abstract

The invention relates to a quick-opened injection mold for a plastic gear, and belongs to the technical field of injection molds. The quick-opened injection mold comprises a working table, and an injection upper mold and an injection lower mold matched with each other; the injection lower mold is mounted on a lower template; the lower template is mounted on the working table; the top of the injection upper mold is mounted on an upper template; guide columns are vertically arranged on the working table on the left and right two sides of the lower template, and are coated with guide sleeves; the guide sleeves are correspondingly fixed on the upper template; the outer periphery of the injection upper mold is coated with an insulation sleeve; the insulation sleeve is made of an aluminum alloy material; the guide columns are coated with rubber sleeves for quickly opening the molds; and a cooling cavity is formed in the sleeve wall of the insulation sleeve. The injection mold is simple in structure, and can effectively quicken the shaping work of injected products under the design of the cooling cavity.

Description

technical field [0001] The invention relates to an injection mold for quick mold opening of plastic gears, belonging 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. P...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/26B29C45/73B29C45/78B29C45/64
Inventor 胡维秀
Owner 重庆和佳机械部件制造有限公司
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