CN102729414A

CN102729414A - Rotary sprue insert

Info

Publication number: CN102729414A
Application number: CN2012102432640A
Authority: CN
Inventors: 闫丽丽; 冯福财; 逯赵毅; 沈黎君; 高居涛; 李凯; 马文革
Original assignee: Tianjin Zhonghuan Sanfeng Electronic Co Ltd
Current assignee: Tianjin Zhonghuan Sanfeng Electronic Co Ltd
Priority date: 2012-07-16
Filing date: 2012-07-16
Publication date: 2012-10-17

Abstract

The invention relates to a rotary sprue insert. The rotary sprue insert comprises a rotary insert, glass beads and springs; two round nests are arranged at the surface of a fixed table of the rotary insert along vertical direction; the center of the rotary insert is provided with a through hole; the top end of the rotary insert is provided with an inner hexagon hole communicated with the through hole; a groove passing through the surface of the rotary insert is arranged in the inner hexagon hole; and the glass beads are arranged in the round nests and are fixed in a mold by the springs. The rotary sprue insert has the advantages that the design is novel; the work is stable, the structure is compact; the processing is convenient; under the premise of guaranteeing the precision of a molded part, the sprue insert can be conveniently replaced; the purpose of conveniently producing two different products can be achieved, the production cycle is shortened; the processing cost is reduced; and the safety is improved. The rotary sprue insert can be widely applied to a mold for producing multiple products.

Description

Rotary cast gate mold insert

Technical field

The present invention relates to a kind of device of injection mold part processing, relate in particular to a kind of rotary cast gate mold insert.

Background technology

On a mold, realize two kinds of different product designs; Be to lower the mould price to reach the more way commonly used of good utilisation resource; But when using die production,, be difficult to guarantee the plastic injection quality of two kinds of products owing to the size of different product, the parameter that weight product is used identical injector.Guarantee product quality again in order promptly to reach shared mould, adopt mold removal after the single-piece production to change the mode of mold insert or stifled runner usually, but this kind mode need be unloaded mould down processing again from injection machine; Stifled original runner, open new runner, but will gain original product the time; Unload down from injection machine again, block up the runner of newly opening, gain original runner; Troublesome poeration delays the production time, and mould and operator have also been increased a lot of danger.

Summary of the invention

Deficiency in view of the prior art existence; The object of the invention is to provide a kind of and is guaranteeing under injection-moulded plastic part product appearance, dimensional accuracy and the prerequisite of die life; A kind of rotary cast gate mold insert that need not load and unload mould and be convenient for changing; Need only mold insert be revolved to turn 90 degrees and just can reach the purpose of producing another kind of product, greatly facilitate production operation, shorten the production cycle.

For achieving the above object; The present invention adopts following technical scheme: a kind of rotary cast gate mold insert; It is characterized in that: comprise rotation mold insert, bead, spring, the fixed station surface vertical direction of described rotation mold insert is provided with two round nests, and the center is provided with through hole; The top is provided with inner hexagonal hole and communicates with through hole, and inner hexagonal hole is provided with the groove that connects the surface; Described bead is installed in the round nest, is fixed in the mould by spring.

This device design is ingenious, working stability, compact conformation; Easy to process, under the prerequisite that guarantees the injection-moulded plastic part precision, be convenient for changing the cast gate mold insert; Reach convenient purpose of producing two different products, shortened the production cycle, reduced processing cost, improved safety.Can be widely used on the mould of a mould multiple product.

Description of drawings

Fig. 1 is the front view of rotation mold insert;

Fig. 2 is the cutaway view of Fig. 1;

Fig. 3 is the rearview of Fig. 1;

Fig. 4 is the stereogram of Fig. 1;

Fig. 5 is a working state schematic representation of the present invention;

Fig. 6 is the vertical view of Fig. 5.

The specific embodiment

Below in conjunction with accompanying drawing the present invention is further described.

As shown in the figure; Rotary cast gate mold insert comprises rotation mold insert 1, bead 2, spring 3, and the fixed station surface vertical direction of rotation mold insert 1 is provided with two round nests 11, and the center is provided with through hole 12; The top is provided with inner hexagonal hole 13 and communicates with through hole 12, and inner hexagonal hole 13 is provided with the groove 14 that connects the surface; During installation mold, rotation mold insert 1 is installed in the fixed head of dynamic model, bead 2 is installed in the round nest 11, is fixed in the mould by spring 3, and push rod 4 is installed in the through hole 12 of rotation mold insert 1.When using mould, mould is installed on the injection machine, bead 2 withstands in the round nest 11 in normal production process, keeps the stable of rotation mold insert 1.When changing when producing another kind of product, only need with die nut by force vertical rotation rotation mold insert 1 stop operating when bead 2 is stuck in round nest 11 to suitable position, guarantee to begin to produce behind rotation mold insert 1 stable under nature.

Claims

1. rotary cast gate mold insert; It is characterized in that: comprise rotation mold insert (1), bead (2), spring (3); The fixed station surface vertical direction of described rotation mold insert (1) is provided with two round nests (11); The center is provided with through hole (12), and the top is provided with inner hexagonal hole (13) and communicates with through hole (12), and inner hexagonal hole (13) is provided with the groove (14) that connects the surface; Described bead (2) is installed in the round nest (11), is fixed in the mould by spring (3).