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Sprue bush

A sprue sleeve and sprue technology, applied in the field of sprue sleeves, can solve problems such as poor temperature stability and poor cooling effect of sprue sleeves, and achieve the effect of enhancing cooling effect and improving temperature stability

Inactive Publication Date: 2020-07-14
东莞市艾尔玛塑件科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a sprue sleeve to solve the problems of poor cooling effect and poor temperature stability of the sprue sleeve in the prior art

Method used

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Embodiment Construction

[0031] In order to make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0032] In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", and "outer" are based on the drawings shown The orientation or positional relationship is only for the convenience of describi...

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Abstract

The invention discloses a sprue bush. The sprue bush comprises a fixed mold plate and a sprue bush body mounted in the fixed mold plate, a sprue is mounted in the sprue bush body, a cylindrical spacemounted in a spaced manner around the sprue, a water inlet channel communicating with the bottom of the cylindrical space, a water outlet channel communicating with the top of the cylindrical space, afirst temperature detection instrument mounted on the bottom of the cylindrical space, a flow controller mounted on the water inlet channel, and a control system are further included, spiral coolingpieces are arranged on the inner side cylinder face, close to the sprue, of the cylindrical space, and the flow controller and the first temperature detection instrument are electrically connected with the control system, the spiral cooling pieces enable cooling water to rotatably circulate to the top of the cylindrical s pace from the bottom of the cylindrical space, the control system controls the flow controller to carry out negative feedback adjusting on the flow of the cooling water, and the cooling effect and the temperature stability of the sprue bush can be greatly improved.

Description

Technical field [0001] The invention relates to the technical field of molds, in particular to a sprue sleeve. Background technique [0002] The sprue bushing is a device used in the field of plastic injection molding, also called a mouthpiece and a filling nozzle. Its function is to connect the injection molding machine and the mold to complete the filling process. [0003] In the prior art, vertical strip-shaped heat dissipation grooves or circular ring-shaped heat dissipation grooves are provided on the outer surface of the sprue sleeve, and then cooling water is passed for heat dissipation. However, the problems of the vertical heat sink are: the water inlet and the water outlet are at the same level, and the cooling water returning from the bottom of the cooling channel to the water outlet has already absorbed heat, the temperature is high, and the cooling effect is poor. The cooling effect of the sprue bushing is affected; the problems of the parallel circular heat dissipati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/27B29C45/73
CPCB29C45/2737B29C2045/2753
Inventor 罗金城
Owner 东莞市艾尔玛塑件科技有限公司
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