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Spring ejector sleeve sequential double-stripper mechanism

A double demoulding and sequential technology, applied in the field of mold manufacturing, to achieve the effect of firm and reliable action, convenient manufacturing and low manufacturing cost

Inactive Publication Date: 2020-05-22
牟维军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To sum up, in the prior art, although there is a return elastic force of the compressed spring, the mold is opened for the second time, and the product and the material handle are pulled off so that the product remains on the core and comes out.

Method used

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  • Spring ejector sleeve sequential double-stripper mechanism
  • Spring ejector sleeve sequential double-stripper mechanism
  • Spring ejector sleeve sequential double-stripper mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] As shown in the figure, it is a spring push tube sequence double demoulding mechanism. When the mold is opened, the spring 185 loses pressure and bounces up and pushes the fixed platen 175 to move towards the moving mold. At this time, the thrust of the fixed platen 175 pushes the product 345 from the fixed mold core. 165, when continuing to open the mold, when the bottom of the hole in the fixed template 175 is in contact with the upper plane of the head of the limit screw 195, the fixed template 175 is restricted by the limit screw 195 and no longer moves towards the direction of the movable mold. . At this time, though the inner surface of the upper end of the product 345 is separated from the fixed mold core 165, the outer surface of the product 345 is still stuck to the wall of the cavity p of the fixed template 175, and the mold is continued. The mold part continues to move backward under the action of the injection machine or the die-casting machine. At this time...

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PUM

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Abstract

The invention provides a spring ejector sleeve sequential double-stripper mechanism. The spring ejector sleeve sequential double-stripper mechanism is composed of a fixed mold and a movable mold. Thefixed mold comprises a fixed mold seat plate, a fixed mold plate, a spring and a fixed mold base plate. The spring is arranged between the fixed mold seat plate and the fixed mold plate. During mold opening, the spring loses pressure to spring up to push the fixed mold plate to strip off the upper end of a product from fixed mold cores. The movable mold comprises push tubes, movable mold cores anda center fixing plate. The center fixing plate is connected with the push tubes. The push tubes are in sliding and sleeving fit with the movable mold cores. The circumferences of the upper end facesof the push tubes make contact with the circumference of the lower end face of the product. When the product is pushed out, the push tubes slide to move upwards along the movable mold cores to push the product out of the molds from a mold cavity of a movable mold plate and the movable mold cores.

Description

technical field [0001] The invention relates to the field of mold manufacturing, which is a sequential double demoulding mechanism for spring push tubes. Background technique [0002] Due to the special structure or shape of the product, the product may stay on the side of the movable mold or adhere to the side of the fixed mold when the mold is opened. In this case, the resistance of the movable mold and the fixed mold is equal. To achieve the purpose of simplifying the mold mechanism, it should be considered that there are demoulding mechanisms on both sides of the movable mold and the fixed mold, so it is called a double demoulding mechanism. After retrieval, Chinese patent CN202336970U discloses a spring sequential demoulding mechanism for injection molds. It uses the return elasticity of a compression spring to make the mold open twice, and the product and the material handle are pulled off, and the product stays on the core and comes out smoothly. Chinese patent CN102...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/40B22D17/22
CPCB22D17/2236B29C45/4005
Inventor 牟维军
Owner 牟维军