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Positioning structure for sprue bush

A technology of positioning structure and sprue sleeve, applied in the field of product mold structure, can solve the problems of mixed air impurity flow rate, unevenness, loose flow channel, etc., to achieve the effect of uniform flow rate and ensure product quality

Inactive Publication Date: 2013-12-11
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] Existing sprue sleeves 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, resulting in poor quality of the injection molded product, and Since the sprue sleeve is generally placed inside the mold, the rotation of the sprue sleeve is generally undetectable

Method used

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  • Positioning structure for 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 panel 3, the side of the sprue sleeve 1 is fastened with protruding positioning screws 6, and the upper end surface of the installation cavity 5 of the panel 3 is provided with a positioning slot 7, the protruding part of the positioning screw 6 is placed in the positioning slot 7.

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Abstract

The invention provides a positioning structure for a sprue bush, which can ensure that the sprue bush cannot rotate during the operation of a mould, and further guarantees that no air impurities are mixed, so as to enable the flow velocity to be uniform and guarantee the product quality after injection molding. The positioning structure comprises a sprue bush, an upper gland, a panel, and a flow passage, wherein the sprue bush is placed inside a mounting cavity of the panel; the lower end of the sprue bush is communicated with the flow passage; the upper gland is covered and mounted on the upper end face of the sprue bush, and is connected with the panel in a fastening manner. The positioning structure is characterized in that a protruded positioning screw is mounted at the side part of the sprue bush in a fastening manner; a positioning slot is formed in the upper end face of the mounting cavity of the panel; the protruding part of the positioning screw is placed inside the positioning slot.

Description

technical field [0001] The invention relates to the structural technical field of product molds, in particular to a sprue sleeve positioning structure. Background technique [0002] Existing sprue sleeves 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, resulting in poor quality of the injection molded product, and Since the sprue bushing is generally placed inside the mold, the rotation of the sprue bushing is generally undetectable. Contents of the invention [0003] The invention provides a positioning structure of the sprue sleeve, which ensures that the sprue sleeve will not rotate during the working process of the mold, thereby ensuring that air impurities will not be mixed, so that the flow rate is uniform, and the product quality after injection molding is ensur...

Claims

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Application Information

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IPC IPC(8): B29C45/27
Inventor 吕应军
Owner WUXI CITY NEW DISTRICT WEICHUANGLI MOLD FACTORY