SU1435472A1 - Mould - Google Patents

Abstract

The invention relates to devices for the manufacture of products from polymeric materials by injection molding and is used for processing thermoplastic polymers. The goal is to expand the technological capabilities of the form. For this, the casting mold is equipped with interacting groove 4 and a wedge 5 installed in the movable 2 v: fixed 1 half-molds, respectively. A clamp 6 is mounted in the fixed half-form in the cutting zone of the sprue. In this case, the slider 4 moves in the plane of the shape connector, and the shutter 3 is made in the form of a spring-loaded rod and placed in the movement zone of the slider. 3 il.

Description

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The invention relates to devices for the manufacture of products from polymeric materials by the method of pouring psd by pressure and is applicable in the field of processing thermoplastic polymers.

The purpose of the invention is to expand the technological possibilities of the form.

FIG. 1 schematically shows a casting mold; in fig. 2 - variants of possible clamping versions; in fig. 3 - con

struction cutter.

The casting mold comprises a fixed half-form 1 with a shaping cavity and a gating system including a pdelite sprue, a movable half-form 2 having a groove made perpendicular to the plane of the form connector in which the cutter 3 is installed. which podruzhi- i: eii in the axial direction, and the other has The shape of syabzhep interacts with the creep 4 and the clip 5, located respectively in the movable 2 and fixed 1 half-forms, while the slider 4 locks the change in the plane of the connector () 0) P) 1, and bounces 3 in the area of the slider.

The clamp 6 is smogtirovap in the fixed half-form 1, the takeaway is also in the form of a rod, one torus of which is spring-loaded in the axial ng11f.; 1enie, and the other end, which is made flat, contacts the article 7 and one of the moving nolufo elements) - Mi) i, for example, terminal 8.

The mold is operated as follows: u) M.

After the closure of the mold, the injection is carried out) asp, lava through the gating system into the decorated cavity. Then, after solidification of the melt, it is mobile. 1 form 2 moves away from the fixed one, with half-move 4 being moved aside by clip 5. release L

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gives a groove, and the cutter 3 under the action of the spring 9 cuts the slotted sprue. In the process of cutting the gate, the product 7 occupies a stable position, since the clamp 6 under the action of the spring 10 at the beginning of the opening of the form presses the product to one of the structural elements of the movable half-form, for example, the rod 8.

The proposed molded mold, in comparison with the well-known one, allows one to expand the technological possibilities, since it can be used to ng, one can break loose layers with thinner walls using a slotted sprue. In addition, the structure is more reliable in operation, since it is not structurally associated with filling the mold with a polymeric material. In a known form, there can be even a leakage of material between the slam-shutter and the ejector pusher as the form wears out during operation.

Claims (1)

Invention Formula Casting mold for polymeric products, containing a fixed zero shape with a shaping cavity and a gating system, including a slotted sprue, a movable half-mold, having a groove, perpendicular to the plane of the shape connector with a cutter located in it, and a stem that differs .m that, in order to expand the technological possibilities, it is equipped with interacting creep and wedge, installed respectively in the movable and non-snub form, and the clamp mounted in the fixed zero position in the cut-off area In this case, the slider has the ability to move in the plane of the mold. Raze.ma, and the cutter is made in the form of a spring-loaded rod and is located in the zone of the displacement of the slide. but Fie.2