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Valve pin mounts for molds

An installation device and valve needle technology, which is applied in the field of hot runner injection molding, can solve the problems of complex structure and thick template, and achieve the effect of small size, compact structure, and avoiding force and wear.

Active Publication Date: 2021-03-02
YUDO SUZHOU HOT RUNNER SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The valve needle is set to be slidable, but the installation structure between the valve needle and the piston is located outside the piston, which makes the structure complicated, and the length along the axis of the valve needle is long, so that the thickness of the template is very thick

Method used

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  • Valve pin mounts for molds
  • Valve pin mounts for molds
  • Valve pin mounts for molds

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.

[0025] In addition, it should be understood that although the terms first, second, etc. may be used herein to describe various elements or structures, these described objects should not be limited by the above terms. The above terms are only used to distinguish these descriptive objects from each other. For example, the first pair of sides may be referred to as the second pair of sides, and similarly, the second pair of sides may also be referred to as the first pair of sides, which does not depart from the protection scope of this application.

[0026] The preferred embodiment provided by the present...

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PUM

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Abstract

The invention discloses a valve needle mounting device used for a mold. The valve needle mounting device used for the mold comprises a piston, a valve needle hanging table arranged on the piston, anda valve needle arranged on the valve needle hanging table. The valve needle extends along the longitudinal long axis. The piston is provided with an accommodating groove. The valve needle hanging table is completely accommodated in the accommodating groove. The valve needle is fixed relative to the piston in the extension direction of the longitudinal long axis and can move relative to the pistonin a first direction, and the first direction is perpendicular to the extension direction of the longitudinal long axis. The valve needle mounting device prevents damage to the valve needle and is compact in structure and small in size, and the thickness of the mold corresponding to the valve needle mounting device is small.

Description

technical field [0001] The invention relates to the field of hot runner injection molding, in particular to a valve pin installation device for a mold in a hot runner injection molding system. Background technique [0002] A hot runner is a collection of heating components used in injection molds to inject molten plastic into the cavity of the mold. Generally, hot runner systems are divided into open hot runner systems and valve needle hot runner systems. The needle-type hot runner system includes a valve needle installation structure. At present, the valve needle installation structure usually includes components such as a piston, a valve needle installation, and a valve needle. Usually, the valve needle is installed through the manifold. During the injection molding process, the manifold The temperature is very high, and when the splitter plate is heated and expanded, it will cause the valve needle to tilt, wear and stick under force, and even cause severe rupture. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/28
CPCB29C45/2806B29C45/281B29C2045/2848
Inventor 李象烈
Owner YUDO SUZHOU HOT RUNNER SYST