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Secondary ejection mechanism for complex plastic product structure

A product structure and secondary ejection technology, applied in the field of injection molds, can solve the problems of high space occupation rate, high maintenance cost, complex design structure and movement process, etc., to achieve low space occupation rate, low maintenance cost, working principle Clear and understandable effects

Active Publication Date: 2019-03-29
重庆宇海精密制造股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This solution has an obvious feature, the design structure and movement process are complicated, the space occupation rate is high, and the maintenance cost is high.

Method used

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  • Secondary ejection mechanism for complex plastic product structure
  • Secondary ejection mechanism for complex plastic product structure
  • Secondary ejection mechanism for complex plastic product structure

Examples

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Effect test

Embodiment

[0021] Such as figure 1 As shown, the embodiment of the present invention includes a female formwork 2 and a male formwork 1, the female formwork 2 and the male formwork 1 are closed and matched up and down, and separated and closed up and down driven by a cylinder. The male template 1 is provided with several thimble mechanisms, and the ejector mechanism is used to separate the product 3 from the male template 1 . The thimble mechanism includes a top hole arranged on the male template 1 and a thimble fitted in the top hole. The top hole includes a sliding hole connecting the upper end surface of the male template 1 and a piston hole 8 arranged at the lower end of the sliding hole. The thimble includes a sliding fit in the sliding hole. The push rod in the hole and the piston 5 fixed on the lower end of the push rod, the piston 5 is slidingly fitted in the piston hole 8, that is, the piston 5 slides in the piston hole 8 during work, and the push rod slides in the slide hole. ...

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PUM

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Abstract

The invention discloses a second ejection mechanism for a complex plastic product structure, and relates to the field of injection mold. The second ejection mechanism mainly comprises a female template and a male template folded up and down, a plurality of thimble mechanisms are arranged on the male template, the thimble mechanisms comprise top holes and thimbles, the top holes comprise sliding holes and piston holes, the sliding holes communicates with the upper end face of the male template and the piston holes, the thimble mechanisms comprise long thimble mechanisms and short thimble mechanisms, piston strokes of the long thimble mechanisms are longer than the piston strokes of the short thimble mechanisms, all the piston holes communicate with a main airway, the main airway communicates with an air compressor, and the cross-sectional areas of all the piston holes are the same, so that the functions of simple structure, stable performance and second ejection can be realized.

Description

technical field [0001] The invention relates to a secondary ejection mechanism for complex plastic product structures, and mainly relates to the field of injection molds. Background technique [0002] In the prior art, as the product structure becomes more and more complex, correspondingly, the mold structure also needs to follow and do some complex structural movements. Due to the special shape of some injection molded products, or the requirement that the products can be automatically separated and fallen off during mass production, when the injection mold cannot automatically separate and fall off the products with one ejection, it is necessary to add another ejection action. Such ejection action design is called secondary ejection. [0003] The existing secondary ejection mechanism mainly adopts a mechanical mechanism. For example, the application number is 2016205504413, which publishes a secondary ejection mechanism. This patent document uses the principle of a lever,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/40
CPCB29C45/401
Inventor 景辉
Owner 重庆宇海精密制造股份有限公司
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