SU810325A1 - Apparatus for pressing ring-type articles - Google Patents

Description

one

The invention relates to the processing of metals by pressure, in particular to extrusion.

A device for pressing annular products is known, which comprises a main matrix mounted along an axis of compression with a curvilinear axis of a point, a container fixed in a container holder having an independent drive, and also an additional matrix located between them mounted on its side surface and perpendicular to the plane of the curvilinear osp of the point of the main matrix 1.

The disadvantage of such a device is that after the pressing process a large press residue remains, and the process of switching to other profile sizes requires significant changeovers due to the complex design of the device.

These drawbacks are partially eliminated by another known device comprising a container mounted along the pressing axis with a drive for moving it, a board with a matrix holder and a stand mounted therein and a matrix assembly consisting of a yoke and a die 2.

However, this device does not reduce the size of the press residue even when going to

pressing another product requires significant changes, which reduces productivity.

The purpose of the invention is to reduce the size of the press residue and increase productivity.

This goal is achieved by the fact that the device is equipped with a cutting tool installed in a transverse groove made in the die holder and attached to the demarcation lip by the vertical guides of the pedestal and the die assembly mounted for displacement along the smallpox by a transverse groove.

FIG. 1 shows the proposed device, a general view (container not shown); in fig. 2 is a section A-A of FIG. one; in fig. 3 - device at the time of cutting

the press residue from the press product (press stamp not shown).

The device comprises a container 1, fixed in the container holder 2, a matrix node, containing a matrix 3 and a holder 4, opposing the stand 5 and placed, like the stand 5, in the vertical guide grooves of the matrix holder. Matrix peeler 6 is attached to

press board 7.

The device works as follows.

In the process of pressing (see Fig. 2), the original billet placed in a container is squeezed out through the point of the main matrix under the action of a ram and press punch.

After extrusion is completed (see Fig. 3), the ram is removed from the container and the container is moved to the size of the transverse groove of the matrix holder 6 by adhering the pressed hot metal to the inner walls of the container 1 and the points of the matrix point 3 also moves in the longitudinal direction relative to the pressing axis and the matrix node. A cutting tool 8 is inserted into the groove formed. The extruded product 9 is removed from the device.

To remove the press residue from the device, the press stamp is inserted into the container and pushes the press residue 10 out of the container. The matrix assembly, together with the press residue, occupies the initial position n along the vertical guide grooves of the matrix holder, the assembly is removed from the device.

Instead of the remote matrix node in

the vertical guide grooves insert the new assembly and the pressing cycle is repeated.

Claims (2)

1. USSR author's certificate number 333994, cl. At 21С 25/00 from 03.10.72. 2. USSR author's certificate number 442865, cl. B 21C 35/02, 1971. / - / by Sepnymi 2 / f - A noSepnymu