SU1523377A1 - Casting mould for articles from polymeric materials - Google Patents

Abstract

The invention relates to the field of engineering, in particular to the design of molds for injection molding polymeric materials. The goal is to ensure the reliability of the mold. For this, a copier is installed in the ejection plates that is able to interact with the driver. The leash is eccentric on the axis. The axis is fixedly attached to the defining signs. The working surface of the ejector is made offset from the plane of the connector by the amount of the working stroke of the copier. 5 il.

Description

The invention relates to mechanical engineering, in particular to the construction of molds for injection molding polymeric materials.

The purpose of the invention is to ensure the reliability of the mold.

FIG. 1 shows a movable half-form, plan projection; in fig. 2 shows section A-A in FIG. 1 (section along o (; and the design of its sign); in Fig. 3, section B-B in Fig. 1 (section along the axis of the copier); Fig. 4 - section A-A in Fig. 1 (section along the axis of the registration mark); Fig. 5 is a section bb of Fig. I (a section along the axis of the copier).

The casting mold contains a fixed 1 and a movable 2 semi-matrix, which forms the sign 3, installed without the possibility of turning on the axis 4, connected pivotally to the rod 5, fixed motionless in plate 6 with the screw 7, copier 8, interacting with the lead B, which is eccentrically formed on the axis, and mounted in the ejection plates 9 and 10, the ejector II, the shank 12 with the spring 13.

Casting form works as follows.

After the materials are cast in the opening position (Fig. 4 and 5), the shank 12 locates the casting machine and stops moving the ejection plates 9 and 10 with the copier 8 and the ejector II installed in them relative to the plane of the injection mold mold, and the beveled groove The copier 8 interacts with the driver In the axis 4, turning the latter together with the decorating sign 3 fixed on it, set it perpendicular to the plane of the shape connector. Upon further disclosure, after the copier 8 is moved relative to the axis 4 to the size of the sloped part of the groove, the ejector II pushes the finished product from the design sign 3.

When the mold mold closes (Fig. 2 and 3), the shank 12 under the action of the spring 13 retracts the ejection plates 9 and 10 with the ejector 11 and the cam 8 installed in them to their original position, while the groove of the copier interacts with the leash On axis 4. sets the sign 3 mounted on it, parallel to the plane of the injection mold plug, after which it is fully closed. Then the cycle repeats.

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Claims (1)

Invention Formula Casting mold for the manufacture of products from polymeric materials, containing an immobile half-mold and movable with ejection plates installed in it, ejectors, decorating signs hinged to the rod and the ejection plate return mechanism equipped with a shank and a spring, characterized in that, in order to ensure the reliability of the injection mold, a copier is installed in the ejection plates, capable of interacting with a driver made eccentrically on an axis connected stationary to the design with special signs, and the working surface of the ejector is offset from the plane of the connector on the value of the working stroke of the copier.  -n and Fig FIG. 2 B- & 5-5 FIG. five FIG. UA 7 //////////// 77/7, u ////////////.