Air cylinder and hot runner system with same

A technology of a cylinder and a cylinder block is applied in the field of a cylinder and a hot runner system having the cylinder, which can solve the problems of affecting the sealing effect of the valve needle, increasing the production and processing costs of injection products, and reducing the service life of the cylinder, and achieving simple adjustment steps. Convenience, improve the injection quality, avoid the effect of rigid collision

Pending Publication Date: 2022-07-01
东莞市热恒注塑科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of the existing cylinder driving the valve needle for sealing, the piston will collide with the cylinder head during the movement, which affects the sealing effect of the valve needle, and at the same time easily causes damage to the cylinder, which reduces the s

Method used

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  • Air cylinder and hot runner system with same
  • Air cylinder and hot runner system with same
  • Air cylinder and hot runner system with same

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Embodiment Construction

[0020] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the embodiments and the accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

[0021] like Figure 1 to Figure 3 As shown, a cylinder provided by the present invention includes a cylinder body 1, a piston 2 movably arranged in the cylinder body 1, a cylinder head 3 arranged above the cylinder body 1 and used to seal the piston 2 in the cylinder body 1, The valve needle 4 arranged in the cylinder body 1 and connected with the piston 2, and the resisting member 5, the elastic member 6 and the adjusting member 7 respectively movably arranged in the cylinder head 3, the resisting member 5 can protrude to the cylinder body 1 and In conflict with the piston 2 ; the elastic member 6 is connected to the adjusting member 7 and the conflicting member 5 ; the adjusting member 7...

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Abstract

The invention relates to the technical field of hot runner injection molding, in particular to an air cylinder and a hot runner system with the air cylinder, the air cylinder comprises a cylinder body, a piston, a cylinder cover, a valve needle connected with the piston, and an abutting piece, an elastic piece and an adjusting piece which are movably arranged in the cylinder cover, and the abutting piece can protrude to the cylinder body and abut against the piston; the elastic piece is connected to the adjusting piece and the abutting piece. And the adjusting piece can adjust the tightness of the elastic piece. The elastic piece applies downward buffering force to the piston through the abutting piece, rigid collision between the piston and the abutting piece or/and the cylinder cover is avoided, and therefore the service life of the piston, the service life of the abutting piece and the service life of the cylinder cover are prolonged. The tightness degree of the elastic piece can be adjusted without detaching the cylinder cover from the cylinder body, so that the buffering force borne by the piston can be conveniently and quickly adjusted; the piston ingeniously changes or controls the glue discharging sequence of the second glue channels through the valve needle, and the injection molding quality of products is improved.

Description

technical field [0001] The invention relates to the technical field of hot runner injection molding, in particular to a cylinder and a hot runner system having the cylinder. Background technique [0002] In recent years, with the continuous development of hot runner injection molding technology, people have higher and higher requirements for the price and quality of injection molding products. However, in the process that the existing cylinder drives the valve needle for sealing, the piston will collide with the cylinder head during the movement process, which affects the sealing effect of the valve needle. increased production and processing costs. The structure of the existing buffer device for providing the buffer force to the piston is complicated, and the adjustment of the buffer force of the buffer device is inconvenient. Therefore, the defects are very obvious, and there is an urgent need to provide a solution. SUMMARY OF THE INVENTION [0003] In order to solve ...

Claims

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Application Information

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IPC IPC(8): B29C45/28B29C45/27B29C45/84F16F15/04F16F15/06
CPCB29C45/2806B29C45/281B29C45/2737B29C45/84F16F15/04F16F15/06B29C2045/2813B29C2045/2817
Inventor 沈勇
Owner 东莞市热恒注塑科技有限公司
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