Injection mold slider-crank secondary ejection structure

A crank-slider mechanism and crank-slider technology, which is applied in the field of injection molds, can solve the problems of high cost and complex structure of the secondary ejection mold, and achieve the effects of low cost, simple processing and assembly, and high versatility

Active Publication Date: 2021-03-12
武汉华升源模具有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a secondary ejection structure and method of the crank slider of an injection mold, which solves the technical problem of the above-mentioned complex and high cost of the secondary ejection mold structure

Method used

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  • Injection mold slider-crank secondary ejection structure
  • Injection mold slider-crank secondary ejection structure
  • Injection mold slider-crank secondary ejection structure

Examples

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Embodiment Construction

[0027] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention. In the following paragraphs the invention is described more specifically by way of example with reference to the accompanying drawings. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0028] It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or there can also be an intervening component. When a component is said to be "connected" to another component, it may be direc...

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Abstract

The invention relates to the technical field of injection molds, in particular to an injection mold slider-crank secondary ejection structure and method. The injection mold slider-crank secondary ejection structure comprises a slider-crank mechanism, a push plate used for pushing a movable mold to move upwards so as to eject a product to a first distance, a shifting block and an ejector pin block,wherein the slider-crank mechanism comprises a first connecting rod and a second connecting rod; one end of the first connecting rod is hinged to a base; the other end of the first connecting rod ishinged to one end of the second connecting rod through a hinge; the other end of the second connecting rod is hinged with the push plate; the hinge is slidably located in a half-crescent-shaped sliding groove of the shifting block; the shifting block is fixedly connected with the ejector pin block; and the ejector pin block is fixedly provided with an ejector pin used for ejecting a product out bya second distance. When a plastic product has a deep glue position on the movable mold side, the secondary ejection structure is simple, the product demolding is convenient to realize, the cost is low, the simplicity in maintenance is achieved, and the universality is high. Secondary ejection is realized under the condition of adding a small number of parts. The added parts are simpler and more convenient to process and assemble. Therefore, the effect of saving the mold cost is achieved.

Description

technical field [0001] The invention relates to the technical field of injection molds, in particular to a secondary ejection structure of a crank slider of an injection mold. Background technique [0002] With the wide application of insert injection molds, the disadvantages of the original mode of manually placing inserts are becoming more and more prominent. In the industry, there are mold structures suitable for automatic placement of inserts, and the mold ejection system is to realize automation. The key is that in the technology of the same industry, after the injection mold ejects the insert product, the insert product remains in contact with the ejector pin in the ejection structure. Then, when the product moves horizontally with the material belt, it often The product is scratched or the thimble is broken, which greatly reduces the qualified rate of the product and increases the cost of mold maintenance. [0003] Due to the shape of the plastic part itself, the pro...

Claims

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Application Information

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IPC IPC(8): B29C45/40
CPCB29C45/4005B29C2045/4047
Inventor 董正科易申兵操向东
Owner 武汉华升源模具有限责任公司
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