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Three-color injection molding rotary hinge container

A technology for rotating hinges and containers, applied in the field of injection molding, can solve the problems of high cost, cumbersome manufacturing process, and gaps between the rotating shaft and the product, and achieve the effects of improving production efficiency, reducing costs, and reducing manual assembly processes.

Inactive Publication Date: 2016-11-23
精英制模实业(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since this production process requires manual assembly for secondary injection molding assembly, the rubber part of the semi-molded product in the first injection will shrink due to cold, resulting in a gap between the shaft and the product, and this production process is cumbersome and requires manpower. More, the cost is relatively high

Method used

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  • Three-color injection molding rotary hinge container
  • Three-color injection molding rotary hinge container

Examples

Experimental program
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Effect test

Embodiment 1

[0015] see figure 1 and 2 , Embodiment 1 of the present invention: a three-color injection molding rotary hinge container, including a cover 1, a bottom cover 2 and a rotating shaft 3: the cover 1 contains a ring structure 4, and the bottom cover 2 contains two ring structures 5. They are tightly matched with each other to form a cylindrical hollow structure, and the cylindrical hollow structure is formed into an integrated structure of the rotating shaft 3 after injection molding.

[0016] In this embodiment, the cover 1 is made of PC material.

[0017] In this embodiment, the bottom cover 2 is made of ABS material.

[0018] In this embodiment, the rotating shaft 3 is made of POM material.

Embodiment 2

[0019] Embodiment 2: An injection mold for preparing the three-color injection molded rotary hinge container of the above embodiment 1. The injection mold includes a cavity containing a surface cover 1 , a bottom cover 2 and a rotating shaft 3 in the injection mold. The injection mold for the three-color injection molding rotary hinge container is characterized in that a pendulum block is provided in the rear mold of the mold to assemble the face cover and bottom cover in the mold: the pendulum block is guided by a shaft on the mold opening float After the columbum is ejected, rotate it, and rotate the top cover in the mold to a proper position to assemble with the bottom cover. The assembled surface cover 1, bottom cover 2 and the hollowed-out position of the cylinder in the mold form the injection molding cavity of the rotating shaft 3, and the mold is closed and injected after the buoy is rotated 180 degrees. After injection molding, the rotating shaft 3 is integrated with ...

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Abstract

The invention discloses a three-color injection molding rotary hinge container, an injection mold and an injection molding process thereof. The three-color rotary hinge container includes a face cover, a bottom cover and a rotating shaft, and the face cover, the bottom cover and the rotating shaft are injected and fixed in the mold. Assembled into an integrated structure, the surface cover, bottom cover and rotating shaft are injection molded into a rotating living hinge without gaps, which can rotate with the rotating shaft as the center. The surface cover and the bottom cover are respectively injection molded by two sets of injection molding screws at the same time, and assembled and combined in the mold, and after combination, the third set of injection molding screws is injection molded into a rotating shaft to form an integrated structure. The three-color injection molded rotary hinge container completes the injection molding of three materials at one time through a set of molds, and injects the surface cover, the bottom cover and the rotating shaft. Through the above method, the present invention can integrally inject the container and its hinge at one time, and there is no gap between the hinge and the product, which saves the assembly process, simplifies the production process, and reduces the cost.

Description

technical field [0001] The invention relates to the technical field of injection molding, in particular to a three-color injection molding rotary hinge container, an injection mold and an injection molding process thereof. Background technique [0002] Injection molding is a process of making thermoplastic or thermosetting plastics into various shapes of plastic products using plastic molding molds. The injection-molded container we use every day has the function of a hinge structure. In the existing production technology, it is generally necessary to assemble the hinge position by hand or place the semi-molded plastic part after injection molding in another set of molds for secondary injection molding. Active rotating hinge structure. Since this production process requires manual assembly for secondary injection molding assembly, the rubber part of the semi-molded product in the first injection will shrink due to cold, resulting in a gap between the shaft and the product, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/16B29C45/06B29C45/26
Inventor 刘少杰李子俊周伟伦雷烁铿
Owner 精英制模实业(深圳)有限公司
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