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Self-flow-disturbing injection mold pouring system

A technology of injection mold and gating system, which is applied in the field of self-disturbing injection mold gating system, can solve the problems affecting the normal operation and service life of the mold, unfavorable mold space layout, and occupying mold space, so as to ensure normal operation and service life, The effect of reducing the cross-sectional area of ​​the gate and increasing the impact force

Active Publication Date: 2020-07-03
ZHEJIANG SAIHAO IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the introduction of heating devices or ultrasonic waves is not only expensive, but also takes up mold space, which is not conducive to the space layout in the mold, and may interfere with other parts in the mold, affecting the normal operation and service life of the mold

Method used

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  • Self-flow-disturbing injection mold pouring system
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  • Self-flow-disturbing injection mold pouring system

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Embodiment Construction

[0025] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0026] Such as Figure 1 to Figure 4As shown, this embodiment includes a circular tubular flow channel 1 for connecting external plastic melts. The flow channel 1 generally includes a vertically arranged main channel 11 and a branch channel 12 connected to the lower end of the main channel 11. The main channel 11 The opening at the upper end is the pouring inlet of the injection molding molten material. The existing injection mold is generally provided with two mold cavities 7 symmetrically in the center, so the number of runners 12 is generally two and symmetrically arranged on both sides of the main flow channel 11, so that the injection mold is formed in the injection mold for feeding the two mold cavities respectively....

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Abstract

The invention provides a self-flow-disturbing injection mold pouring system, belongs to the technical field of injection molding processing, and solves the technical problem that existing thick-walledtransparent plastic parts are susceptible to flow marks and other injection molding defects. The self-flow-disturbing injection mold pouring system comprises a tubular runner for being connected withan external plastic melt and a gate for enabling the runner to communicate with a mold cavity, wherein a plurality of pin fins arranged at intervals are arranged in the gate. The system is characterized in that the runner communicates with the gate by a flat buffer pipe for leading the plastic melt to flow upwards, the gate is used for guiding the plastic melt to flow downwards and is flat tubular, the pin fins are arranged in at least one row, and each row of the pin fins is arranged in the width direction of the gate. The flow marks of the thick-walled transparent plastic parts are effectively prevented by improvement of the pipe structure and the arrangement manner of the pin fins of the pouring system.

Description

technical field [0001] The invention belongs to the technical field of injection molding, and in particular relates to a pouring system for self-disturbing injection molds. Background technique [0002] The function of the gating system of the self-disturbing injection mold is to transport the plastic melt into the mold cavity, generally including a runner for connecting the external plastic melt and a gate for connecting the runner and the cavity. However, due to the excessive impact of the plastic melt in the gate when it flows into the mold cavity or the uneven temperature of the plastic melt in the gate, the outer wall of the molded product is prone to relatively obvious flow marks, which affects product quality. and pass rate. [0003] In order to solve this problem, a Chinese patent (notification number: CN206605735U) discloses an improved mold inlet, which has multiple turbulence protrusions in the glue inlet, which can alleviate the impact of the plastic melt on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/27
CPCB29C45/27B29C45/2708
Inventor 李金国虞伟炳谌胤铨姚震
Owner ZHEJIANG SAIHAO IND CO LTD
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