SU1563995A1 - Casting mould for producing polymeric articles - Google Patents

Abstract

The invention relates to injection molds for the manufacture of polymeric products. The purpose of the invention is to increase the reliability of the form and simplify its manufacture. For this purpose, the sliders 6, 7 of the mechanism for separating the plates are installed in guides made in intermediate plates on the side surface, the sliders being made with slots with parallel inclined walls for the passage of the copier element 9, which is made in the form of a strip. The limiter 8 of movement of the sliders is made in the form of a strip with supporting surfaces and grooves for the sliders. When the shape is opened, the slider moved by the copier element is successively fixed in the slots of the limiter 8, which prevents spontaneous movement of the intermediate plates. 6 Il.

Description

The invention relates to a tool for processing plastics.

The aim of the invention is to improve the reliability of the form and simplify its manufacture.

FIG. Figure 1 shows a shape with three connector planes in the closed position; in fig. 2 - the same, in an intermediate position (opening on the connector); FIG. 3 the same, in the open position; FIG. 4 shows section A-A in FIG. 3; in fig. 5 is a section BB in FIG. 3; in fig. 6 - a version of the form with a two-stage removal of the product.

The casting mold for the manufacture of products from polymeric materials contains a movable fastening plate 1 with a decorative plate 2 rigidly connected with it, a fixed runner plate 3, intermediate plates 4, 5 and a mechanism for separating the plates including the sliders 6 and 7 placed in the longitudinal grooves along the lateral surface of the plates 4 and 5, the movement limiter 8 of the sliders 6 and 7, the rigidly fixed tea plate 3 and the copy element 9 secured in the decoration plate 2.

The copy element 9 is made in the form of a slat-key.

The movement limiter of the sliders 8 is made in the form of a strip with a stepped longitudinal groove having two support surfaces and transverse grooves for the sliders.

The sliders 6, 7 have oval slots for special screws 10 for their installation in the longitudinal grooves of the plates 4 and 5 with the possibility of movement. In the central part of the slider slots are made with parallel, nclone walls for the passage of the copier element 9,

ate

about

00

co

moreover, the size of the lumen of the slot should be sufficient for free passage of the horizontal part of the bar - the key. The lower end of the slider 6 is made smooth, the slider 7 with the protrusion 11 (Fig. 0.

Casting form works as follows.

After the material has been poured and the technology has been aged, the mold is opened. The mobile part departs from the fixed gating plate 3, which carries the plates k and 5, held by a copier film, which is located in the slots of the sliders 6 and 7.

The form is opened by connector I. In this case, the sliders 6 and 7 move with the plates k and 5 along the longitudinal groove of the limiter 8, interact with their lower ends with the reference planes until the slider b reaches the first groove of the limiter 8, Copier 9, I interact with the slot wall of the slider 6, feeds it into the groove.

The plate C stops and the movable part of the form continues to move along with the plate 59 a slider 7 of which came into contact with the copier element 9. The form is opened through the connector II. After that, the plate 5 continues to move until the slider 7 reaches the second groove of the stopper 8. The slider 7 is lowered into the groove by the action of the copier element 9. Plate 5 stops. The moving part of the form, continuing the movement, opens it through connector III.

After removing the part, the form is closed. With the approach of the movable part to

0

0

five

0

five

plate 5, the copier element 9 comes into contact with the wall of the slider 7 and leads it out of the groove of the restrictor 8, then the slider 6 is thus brought out, allowing the free movement of the plate k with the movable part of the mold to its original position.

In forms with two-stage pushing of the castings (Fig. 6), with one or several plates of the pushers, the copying element 9 can be fixed in the fixed part of the form, the sliders 6 and 7 - in the longitudinal grooves of the plates of the pushers, and their limiter 8 fixed in the movable part of the form .

Claims (1)

Invention Formula Casting mold for the manufacture of polymer products, containing a fixed gating plate, movable decorating and intermediate plates and a mechanism for separating the plates, including a copier element, locking elements in the form of slides and a movement limiter fixed in the fixed gating plate, characterized in that in order to increase the reliability of the mold and simplify its manufacture, the intermediate plates are made with guides on the side surface in which the sliders are placed, the latter being made with The blades with parallel inclined stems for the passage of the copier element, which is made in the form of a bar, and the limiter of the movement of the sliders is made in the form of a bar with support surfaces and grooves for the slider 2 54. to -J w 9 Ј 2pF G. Z gsch s if 566G951 A-A. 1563995 FI.5