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Power component for valve needle

A power component and valve needle technology, applied in the field of valve needle power components and valve needle components, can solve the problems of complex bifurcation structure, high friction resistance, and easy fracture of the end, and achieve high overall strength and small contact surface , not easy to wear effect

Inactive Publication Date: 2014-01-15
沈坚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The power assembly of the existing valve needle is composed of a lever and a power piston. The driving end and the driven end of the lever are fork-shaped, and the driving end is connected with the driving part through a pin; the power assembly of this structure, the driving end of the lever and the driven end The strength of the bifurcated structure at the moving end is low. When the lever is working, the end is easily broken. The contact surface between the driving end, the pin and the power piston is large, the frictional resistance is high, and it is easy to be damaged. Complex, high processing cost

Method used

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  • Power component for valve needle

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Embodiment Construction

[0011] The present invention is described below in conjunction with accompanying drawing.

[0012] Such as figure 1 As shown, a power assembly of a valve needle according to the present invention includes a lever 1 and a power piston 11; The driving end 3; the connecting portion is provided with a connecting hole 4; the driving end 2 and the driven end 3 are spherical; the side of the power piston 11 is provided with a lever groove 12; the driving end 2 is provided In lever slot 12.

[0013] Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art:

[0014] In the power assembly of the valve needle of the present invention, the driving end 2 and the driven end 3 of the lever 1 are in the shape of a spherical ball. Therefore, when working, the contact surface between the driving end 2 and the power piston 11 is small, with less friction and less wear and tear. broken, the overall strength...

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Abstract

The invention discloses a power component for a valve needle. The power component comprises a lever and a power piston, wherein the lever comprises a connecting part arranged close to the middle of the lever and a driving end and a driven end which are arranged at two ends of the lever; a connecting hole is formed in the connecting part; sections of the driving end and the driven end are arc-shaped; a lever groove is formed in a side part of the power piston; the driving end is arranged in the lever groove. According to the power component for the valve needle, the sections of the driving end and the driven end of the lever are arc-shaped, so when the power component works, a contact surface between the driving end and the power piston is small, and the power component is small in friction, difficult to wear and break, high in overall strength, simple in structure and low in cost.

Description

technical field [0001] The invention relates to a valve needle assembly in a hot runner system, in particular to a valve needle power assembly with stable structure, small frictional resistance and low cost, belonging to the technical field of hot runner system components. Background technique [0002] The power assembly of the existing valve needle is composed of a lever and a power piston. The driving end and the driven end of the lever are fork-shaped, and the driving end is connected with the driving part through a pin; the power assembly of this structure, the driving end of the lever and the driven end The strength of the bifurcated structure at the moving end is low. When the lever is working, the end is easily broken. The contact surface between the driving end, the pin and the power piston is large, the frictional resistance is high, and it is easy to be damaged. Complicated and expensive to process. Contents of the invention [0003] In view of the above-mention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/28
CPCB29C45/281B29C2045/2834
Inventor 沈坚
Owner 沈坚