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Hot nozzle assembly and hot runner system

A hot runner and component technology, applied in the field of hot nozzle components and hot runner systems, can solve the problems of easy deformation, non-wear resistance, low hardness, etc., and achieve the effect of ensuring thermal conductivity

Pending Publication Date: 2020-01-24
YUDO SUZHOU HOT RUNNER SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the materials with good thermal conductivity, the hardness is low, not resistant to wear, and easy to deform

Method used

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  • Hot nozzle assembly and hot runner system
  • Hot nozzle assembly and hot runner system
  • Hot nozzle assembly and hot runner system

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Embodiment Construction

[0021] 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.

[0022] In each drawing of the present application, some dimensions of structures or parts are exaggerated relative to other structures or parts for convenience of illustration, and therefore, are only used to illustrate the basic structure of the subject matter of the present application.

[0023] In describing specific embodiments of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "bottom", "inner The orientation or positional relationship indicated by " and "outside" is based on the orientation or positional relationship shown in the atta...

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Abstract

The invention discloses a hot nozzle assembly and a hot runner system. The hot nozzle assembly comprises a hot nozzle extending along a longitudinal axis, a valve needle and a nozzle tip device partially arranged on the inner side of the hot nozzle; the hot nozzle defines a first runner; the nozzle tip device defines a second runner communicating with the first runner and a gate communicating withthe second runner; and the valve needle is movably arranged in the first runner and the second runner along the longitudinal axis to open or close the gate, wherein the nozzle tip device comprises anupper nozzle tip in contact with the hot nozzle and a lower nozzle tip defining the gate, the hardness of the lower nozzle tip is greater than the hardness of the upper nozzle tip, and the thermal conductivity of the lower nozzle tip is smaller than the thermal conductivity of the upper nozzle tip. For the hot nozzle assembly disclosed by the invention, the thermal conductivity of the nozzle tipdevice is ensured, and the nozzle tip device is unlikely to deforming as well as is more wear resistant.

Description

technical field [0001] The invention relates to the field of hot runner molds, in particular to a hot nozzle assembly and a hot runner system. Background technique [0002] At present, the injection molds commonly used in the injection molding industry are hot runner injection molds. Compared with ordinary molds, the plastic products injected through the hot runner system are of higher quality, and the hot runner system has the advantages of saving raw materials, improving production efficiency, and high degree of automation. [0003] The hot nozzle assembly usually includes a hot nozzle, a nozzle tip inside the hot nozzle, and a valve needle. The valve needle can be driven to reciprocate in the flow path formed by the hot nozzle and the nozzle tip, thereby opening or closing the gate formed on the nozzle tip for injection. Glue or stop glue injection, the tip of the nozzle will be hit during the movement of the valve needle. The tip of the nozzle is usually made of a materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/27B29C45/28
CPCB29C45/27B29C45/2806
Inventor 李象烈
Owner YUDO SUZHOU HOT RUNNER SYST