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Electric injection mold used for plastic gear

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 effect of reducing hollowing, speeding up the setting work, and fast speed

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

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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  • Electric injection mold used for plastic gear
  • Electric injection mold used for plastic gear

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Such as figure 1 , figure 2 As shown, an electric injection mold for plastic gears, an electric injection mold for plastic gears, includes a workbench 8, an upper injection mold 1 and an injection lower mold 6 that cooperate with each other, and the lower injection mold 6 is installed on the lower template 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, the workbench 8 on the left and right sides of the lower formwork 7 is respectively vertically provided with guide pillars 4, and the guide pillars 4 are equipped with The guide sleeve 5 and the guide sleeve 5 are correspondingly fixed on the upper template 3, and the outer periphery of the injection molding upper mold 1 is covered with a thermal insulation sleeve 2, and the thermal insulation sleeve 2 is made of aluminum alloy material. A screw 12 is arranged vertically between them. The upper end of the screw 12 is mounted o...

Embodiment 2

[0019] Further changes are made on the basis of the first embodiment, the wall thickness of the thermal insulation cover 2 is 55 mm; the distance between the cooling chamber 9 and the side wall of the thermal insulation cover 2 is changed to 15 mm. Others are the same as embodiment one.

Embodiment 3

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

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Abstract

The present invention relates to an electric injection mold used for a plastic gear, and belongs to the technical field of injection molds, the electric injection mold includes a working table, an injection molding upper die and an injection molding lower die, the injection molding upper die and the injection molding lower die are matched with each other, the injection molding lower die is arranged on a lower template, the lower template is mounted on the working table, the top of the injection molding upper die is arranged on an upper template, guide posts respectively are vertically arranged on the working table and located at left and right sides of the lower template, the guide posts are sleeved with guide sleeves, the guide sleeves are respectively correspondingly fixed on the upper template, the outer periphery of the injection molding upper die is sleeved with a thermal insulation sleeve, a screw rod is vertically arranged between the thermal insulation sleeve and the guide post at the left side, the upper end of the screw rod is arranged on the upper template by a bearing in the manner of penetration, the screw rod is sleeved with a nut, the nut is fixed on a holder, the lower end of the screw rod is connected with a motor, and the inner wall of the thermal insulation sleeve is provided with a cooling chamber. Through design of the cooling chamber, shaping work of a product after injection molding can be effectively accelerated, and product percent of pass is improved.

Description

technical field [0001] The invention relates to an electric injection mold for 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. Phenomenon, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/26B29C45/73B29C45/66
Inventor 胡维秀
Owner 重庆和佳机械部件制造有限公司
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