SU1375474A1 - Mould for making polymer articles - Google Patents

Abstract

This invention relates to casting molds for the manufacture of polymer products. The purpose of the invention is to increase the reliability of the removal of low mass products. The form contains a movable plate of dies 3 with an M-shaped gating valve made in it with curvilinear connections 11 of the straight sections 12. When the form is opened, the products are successively removed, and then the sprue, while the straight sections 12 move apart and push the stuck on the ejector x products. 1 hp f-ly, 3 ill. (L with h | el 4; ib n Fy

Description

The invention relates to a tooling for the processing of polymeric materials and can be used for the manufacture of products with the separation of sprues in the form.

The purpose of the invention is to increase the reliability of light product removal.

FIG. 1 shows a casting mold, a view of the movable matrix plate; in fig. 2 - section A-A in FIG. 1 in FIG. 3 is the same, g is the open position.

The casting mold comprises a fixed plate 1, a movable plate 2 of the dies 3 with a spacing gate 4 with gate delays 5, an ejector system for sequential removal of products and a sprue including the ejector plates 6 with the shank 7, the ejector 8 pushers and the gate spurs 9. In addition, in the ejection plates 6, a pusher 10 is mounted for simultaneous

20 neither polymer products containing a fixed plate; a movable plate of dies with diverting gates with a gate gap and drawing out a nodding system for sequentially moving the gate ejector 9, 25 removing the product and the gate, which are inclined in the projectile product ejector and

different with

The opposite sides of the plane of the connector form

The distributor gate 4 is made M-shaped with curvilinear joints 11 straight linear sections 12 "

sprue,

5 so that, in order to increase the reliability of removing products from small

30 by weight, by divorcing; the main channel is full of M shaped with curvilinear connections of straight lines; the matrix is located on the outer side of the straight line: X. parallel plots5 in the beginning of which sprue delays are located.

Vp Sknye l. Tnikov channels 13

(not

shown) made tunnel. In addition, there are additional ejectors 14 sprues. This design solution ensures the sequential removal of products first, and then the spruej, which, after being pushed out, is moved apart and straight-line: in parts with pushing pushes stuck products of low mass.

The form works as follows. After polymer injection and technological aging, the form is opened, and the products are pushed out of the dies, separated by a tunnel inlet from the sprue. In the further opening process, the ejector 9 of the sprue moves, affecting the sprue delays, the sprue is ejected from the sprue gate,

After that, due to the M-shape with curved sections,

Claims (2)

straight sections (2 are diluted in different directions and push the sticking on the pushers 8 of the product. Claim 1. Injection mold for the manufacture of polymeric products containing a fixed plate; a movable plate of dies with diverting gating channels with a gate and an ejector system for following sprue, 5 so that, in order to increase the reliability of removing products from small the mass, the divorcing of the central channel of the E M-channel with the curvilinear connections of straight sections, while the matrix is located on the outer side of the linear: X. parallel plots5 in the beginning of which sprue delays are located. 2. Casting form according to claim, 1 ,. it is distinguished from TeMj that the ejector system is provided with push-pieces for simultaneous movement — gate ejectors j which are located C tilted in opposite directions relative to the plane of the form plug. U / K T //// - ////. FIG 2  D