SU1359143A1 - Apparatus for separating plastic articles from ingate system - Google Patents

Abstract

The invention relates to the processing of plastics and can be used in the manufacture of extruded products to separate parts from the gating system. The goal is to improve the quality of parts. For this, the device is equipped with an elastic clamp, which is fixed in the punch and protrudes above its cutting edge, and with retainers located on the die, and its cutting edges are placed in the slots between the retainers. The casting system with the parts located at its ends is placed in the recesses of the retainers. When the press crawl goes down, the elastic pressing of the punch with its part projecting above the cutting edge of the punch enters the die cavity between the latches, presses the runner system, lowers it. Parts are separated from the gating system. 3 il. with fS (L oo ate with 4 CO

Description

The invention relates to the processing of plastics and can be used in the manufacture of extruded products, namely in the separation of parts from the gating system.

The aim of the invention is to improve the quality of parts.

FIG. 1 shows the proposed device, the overall appearance; in fig. 2 - the same, at the time of separation of parts from the gating system; in fig. 3 - matrix, top view.

The device for separating plastic parts from the gating system comprises mounted on guide bushings and columns (not shown) an upper plate 1 with a punch 2 fixed on it and a lower plate 3 with a die 4 installed on it. The punch 2 is provided with an elastic clamp 5, the outer plane of which acts above the cutting edge of the punch 2. The matrix 4 has guide clamps 6 of the gating system, in the grooves of which the cutting edges 7 are located. The cutting edges 7 have an excess over the plane of the die that is fixed between Atorami 6.

The device works as follows.

The casting system 8 with the parts 9 located at its ends is placed in the grooves 10 of the guide clamps 6. When the press ram moves down, the elastic clamp 5 of the punch 2 with its protruding portion above the cutting edges of the punch enters the cavity of the matrix 4 between the clamps 6 and presses on the thick part of the gating system 8, lowering it. At this point, the side bridges of the gating system are drawn into the matrix and press the parts 9 tightly against its outer walls. At this time, the punch 2 removes the parts 9 from the bridges of the runner system at the part itself.

The proposed device allows the separation of plastic parts from the gating system.

5 without any residues of the gate, eliminating the subsequent stripping at the place of separation, it is also possible to separate several pairs of oppositely located parts from the gating system at the same time.

Claims (1)

Invention Formula A device for separating plastic mass parts from the gating system, comprising a die with a cavity, a punch with sharp cutting edges and guide clamps with grooves for accommodating the lithic system, which differs from. In order to improve the quality of the parts, the device is equipped with an elastic clamp fixed in the punch and protruding above its cutting edge, the guide clamps are located on the die, and its cutting edges are placed in the slots between the clamps. 1 Fi.g.2 --Г-6 Editor A.Makovska Fi.g. five Compiled by E. Fetisov Tehred L. Serdyukova Order 6105/18 Circulation 565 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab, 4/5 Production and printing company, Uzhgorod, Projecto st., 4 Proofreader A.Zimokosov