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Gum sealing check structure of injection molding machine

An injection molding machine and sealing technology, which is applied in the field of injection molding machines, can solve problems such as unsatisfactory use effect and complex structure of the check ring, and achieve the effects of simple and reasonable structure, long service life and high sealing sensitivity

Active Publication Date: 2012-12-19
GUANGDONG YIZUMI PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This anti-reverse ring structure is complex, and the use effect is not ideal

Method used

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  • Gum sealing check structure of injection molding machine

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Experimental program
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Effect test

Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] see figure 1 , this kind of glue sealing anti-reverse structure of injection molding machine, comprises the glue head 1 that is connected with the screw rod 5, the glue head 1 is covered with the glue pad 4, and the cylindrical anti-reverse ring is empty on the glue Between the head of the head 1 and the rubber pad 4, the non-return ring includes a front non-return ring 2 and a rear non-return ring 3, and slopes are respectively arranged on the end faces of the front non-return ring 2 and the rear non-return ring 3. In this embodiment, the slope on the front non-return ring 2 and the slope on the rear non-return ring 3 form a groove. The cross section of the groove is V-shaped or U-shaped.

[0018] The rubber head 1, the front check ring 2, the rear check ring 3, the rubber pad 4 and the screw 5 are set in the barrel 6, the barrel 6 is connecte...

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Abstract

The invention discloses a gum sealing check structure of an injection molding machine. The gum sealing check structure comprises a screw head connected with a screw; a gum washer is sleeved on the screw head; a tubular check ring is sleeved between the head part of the screw head and the gum washer; the check ring comprises a front check ring and a rear check ring; inclined planes are respectively arranged at the connecting end faces of the front check ring and the rear check ring; the inclined plane on the front check ring and the inclined plane on the rear check ring form a groove; the section of the groove is of a V shape or a U shape; the front check ring and the rear check ring are integrally molded; the gum washer is pressed on the screw; the screw head, the front check ring, the rear check ring, the gum washer and the screw are arranged inside a charging barrel; the charging barrel is connected with a jet nozzle flange, and a jet nozzle is inserted on the jet nozzle flange. According to the invention, the contradiction between the contact area and rollback force of the check ring is effectively solved; the gum sealing check structure can be applied to various injection molding machines, and has the characteristics of being simple and reasonable in structure, long in service life, fast in response, accurate in metering, and wide in application range.

Description

technical field [0001] The invention relates to an injection molding machine, in particular to a glue sealing anti-reverse structure of the injection molding machine. Background technique [0002] The sealant anti-return mechanism is an important part of the plasticizing device of the injection molding machine. It is mainly composed of the rubber feed head, the rubber pad and the non-return ring. When pushing, it is required that the non-return ring can quickly and reliably contact the rubber pad, cut off the colloid return path, and ensure the accuracy of the injection volume. However, when the glue is melted, the screw is rotated under the action of external force. At the same time, with the increase of the liquid colloid at the front end of the barrel, when the screw is forced to retreat slowly, the screw will drive the rubber head and the rubber pad to rotate together, so that the liquid colloid flows forward along the groove of the screw, and pushes the anti-reverse rin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/58
Inventor 胡春生侯永平隋铁军
Owner GUANGDONG YIZUMI PRECISION MACHINERY
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