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Anti-leakage single valve nozzle

An anti-leakage, single-valve technology, applied in the field of hot runners, can solve the problems of valve needle cover and valve needle easy to leak glue, etc., and achieve the effect of simple structure, low cost and guaranteed cleanliness

Pending Publication Date: 2021-08-31
GUANGDONG YUDO HOT RUNNER SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an anti-leakage single valve nozzle to solve the technical problem in the prior art that the valve needle sleeve and the valve needle are easily leaked.

Method used

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  • Anti-leakage single valve nozzle
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  • Anti-leakage single valve nozzle

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Embodiment Construction

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] It should be noted that when a component is referred to as being “fixed on” or “disposed on” another component, it may be directly or indirectly located on the other component. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. The indicated orientation or position is based on the orientation or position shown in the drawings, and is only for conv...

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Abstract

The invention relates to the technical field of hot runners, and provides an anti-leakage single valve nozzle. The anti-leakage single valve nozzle comprises a cylinder body and a hot nozzle body arranged on one side of the cylinder body. The single valve nozzle further comprises a piston, a valve needle, a valve needle sleeve and a sealing element, wherein the piston is arranged in the cylinder body, the valve needle penetrates through the cylinder body and extends into the hot nozzle body, the side, away from the hot nozzle body, of the valve needle is connected with the piston, the valve needle sleeve is arranged in the cylinder body and sleeves the valve needle, and the sealing element is arranged in the cylinder body, sleeves the valve needle and is located on the side, away from the piston, of the valve needle sleeve. In the injection molding process, the piston drives the valve needle to move, and the valve needle moves relative to the valve needle sleeve, so that a flow gate of the hot nozzle body is opened or closed. The sealing element is arranged at the bottom of the valve needle sleeve, when the valve needle moves relative to the valve needle sleeve, the sealing element is used for preventing a rubber material adhering to the valve needle from falling off, the cleanness of the surface of the valve needle is guaranteed, and it is avoided that the rubber material leaks through the fit clearance between the valve needle and the valve needle sleeve. The structure is simple, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of hot runners, and more specifically relates to a leakage-proof single-valve nozzle. Background technique [0002] Liquid silicone is a high-fluidity plastic material. Since the valve needle is driven by the piston to realize the opening and closing of the gate, there is a matching gap between the valve needle sleeve and the valve needle, and the matching dimensions of the valve needle and the valve needle sleeve are strictly limited. Requirements, in the injection molding process, when the valve needle cover and the valve needle are not properly matched, it is easy to see glue. Contents of the invention [0003] The purpose of the present invention is to provide an anti-leakage single-valve nozzle to solve the technical problem in the prior art that the valve needle sleeve and the valve needle are easily leaked. [0004] In order to achieve the above object, the technical scheme adopted in the present i...

Claims

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Application Information

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IPC IPC(8): B29C45/28
CPCB29C45/2806B29C45/281
Inventor 韩昇烨骆田伟易世根谢永权康仁植
Owner GUANGDONG YUDO HOT RUNNER SYST
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