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Circumferential positioning structure of sprue bush

A positioning structure and sprue sleeve technology, applied in the field of product mold structure, can solve the problems of mixed air impurities, flow rate, unevenness, poor product quality, etc., and achieve the effect of ensuring product quality and uniform flow rate

Inactive Publication Date: 2013-11-27
WUXI CITY NEW DISTRICT WEICHUANGLI MOLD FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The sprue sleeves of the existing injection molds are all cylindrical or truncated conical structures, which are prone to rotation during the working process of the mold, making the flow channel loose, mixed with air impurities or uneven flow rate, thus reducing the quality of the injection molded product. Poor, and since the sprue sleeve is generally placed inside the mold, the rotation of the sprue sleeve is generally not detectable

Method used

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  • Circumferential positioning structure of sprue bush

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Embodiment Construction

[0007] See figure 1 , which includes a sprue sleeve 1, an upper gland 2, a panel 3, and a flow channel 4. The sprue sleeve 1 is placed in the installation cavity 5 of the panel 3, the lower end of the sprue sleeve 1 communicates with the flow channel 4, and the upper gland 2 covers Installed on the upper end surface of the sprue sleeve 1, the upper gland 2 is fastened to the connection panel 3, and both sides of the upper surface of the installation cavity 5 are provided with long grooves 6, and the long grooves 6 on both sides are respectively connected to the installation cavity 5, and the sprue sleeve 1 Corresponding to the position of the long groove 6, a penetrating linear positioning groove 7 is provided. The long grooves 6 on both sides and the linear positioning groove 7 form a linear groove. The inner wall of the long groove 6 on the side.

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Abstract

The invention provides a circumferential positioning structure of a sprue bush. The circumferential positioning structure avoids sprue bush rotation in mold working thereby preventing mixing with air impurity so that a flowing rate is uniform and injection molded product quality is guaranteed. The circumferential positioning structure comprises the sprue bush, an upper cover, a panel and a channel. The sprue bush is arranged in an installation chamber of the panel. A lower end of the sprue bush is communicated with the channel. The upper cover covers an upper end surface of the sprue bush. The upper cover is fixedly connected to the panel. The circumferential positioning structure is characterized in that two sides of an upper surface of the installation chamber are provided with long slots; the long slots at the sides are communicated respectively with the installation chamber; parts of the sprue bush corresponding to the long slots are provided with a through linear positioning slot; the long slots at the two sides and the linear positioning slot form a linear slot; and a positioning column passes through the linear positioning slot and then two ends of the positioning column respectively stand up to inner walls of the long slots at the two sides.

Description

technical field [0001] The invention relates to the structural technical field of product molds, in particular to a circumferential positioning structure of a sprue sleeve. Background technique [0002] The sprue sleeves of the existing injection molds are all cylindrical or truncated cone structures. During the working process of the mold, they are prone to rotation, making the flow channel loose, mixed with air impurities or uneven flow rate, thus reducing the quality of the injection molded product. Poor, and since the sprue sleeve is generally placed inside the mold, the rotation of the sprue sleeve is generally not detectable. Contents of the invention [0003] The invention provides a circumferential positioning structure of the sprue bushing, which ensures that the sprue bushing will not rotate during the working process of the mold, thereby ensuring that air impurities will not be mixed in, so that the flow r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/27
Inventor 吕应军
Owner WUXI CITY NEW DISTRICT WEICHUANGLI MOLD FACTORY
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