SU812588A1 - Mould for shaping polymeric articles with undercut portions - Google Patents

Description

(54) CASTING FORM FOR THE MANUFACTURE OF POLYMERIC PRODUCTS WITH UNDERWATERS

I

The invention relates to recycling of plastics into articles, in particular, devices for manufacturing articles with internal interrupted threads.

A casting mold for the manufacture of polymeric articles with undercuts is known. a movable and fixed half-form, an offoclong undercut mark, including a central wedge and side decoration parts, a copier system interacting with the plates for interchanging the side inserts, a matrix / composite part, and an additional wedge is made to move its parts. This complicates the design

forms.

The closest technical solution to the one described is a casting mold for the manufacture of polymer articles with undercuts, containing a movable and. fixed half-molds, matrices, undercuts forming signs, each central wedge and side shaping parts installed, installed with the possibility of axial displacement relative to the central wedge part.

and placed in the movable half-form ejector products G2.

In a well-known form, the mark is placed in the movable half-form, and the matrix is stationary, therefore an additional plane of the connector is required to remove the product from the mold, for which the coercive mechanism is used. body connector .;

The purpose of the invention is to simplify the design of the form by eliminating the mechanism of the forced plug.

goal is achieved

the fact that in the injection mold for izgo-. products of polymeric products containing movable and fixed half-molds, matrices forming undercuts, including each central wedge part and lateral forming parts mounted axially relative to the central wedge part, and ejector parts of products according to the invention placed in the movable half-shape, Forming undercuts marks are mounted on a fixed half-form, and the dies are made with delays and are placed in

movable half-form.

Claims (1)

* Claim An injection mold for manufacturing polymer products with undercuts, containing movable and fixed half-molds, matrices, signs forming undercuts, including each central wedge part and lateral forming parts installed with the possibility of axial movement relative to the central wedge part, and placed in the movable half form ejectors of products, The reason is that, in order to simplify the design by eliminating the forced connector mechanism, forming an undercut. the signs are mounted on a fixed half-form, and the matrices are delayed and placed in a moving half-form.