SU1637896A1 - Tool for strengthening pressure-moulded pipes with thickened end portions - Google Patents

Abstract

The invention relates to the processing of materials by pressure and can be used for the manufacture of hollow articles made of metals and plastics with reinforced thickenings on the outer surface. The purpose of the invention is to increase productivity by producing hollow articles with reinforced thickeners at both ends in a single pressing cycle. When extruding the material into the additional channel 8, a thickening is formed on the pipe due to its repressing and simultaneous adhesion of the inner surface of the additional reinforcing sleeve 11 located in the slot behind the channel of the additional matrix 9 with the pressed material. After the stop 7 is displaced in the transverse direction, the main section of the pipe is pressed through an additional matrix 9, during which an additional reinforcing sleeve leaves the cavity of the container 1 while being fixed on the surface of the thickening formed at the outlet end of the pipe. 2 hp f-ly, 6 ill.

Description

"W

yo

The invention relates to the processing of materials by pressure and can be used for the manufacture of hollow articles made of metals and plastics with reinforced thickenings on the outer surface.

The purpose of the invention is to increase the productivity of obtaining hollow articles with reinforced thickeners at both ends in a single pressing cycle.

Fig. 1 shows a diagram of the operation of the tool at the initial stage of pressing (Fig. 1); Fig. 2 is the same at the stage of forming the front end of a pipe of minimum diameter; Fig. 3 is the same at the stage of forming the main pipe section after the formation of the first reinforced thickening; Fig. 4 is the same at the stage of forming the rear end of the pipe of maximum diameter after its reinforcement; figure 5 is a section aa in figure 1; Fig.6 detachable matrix made in one piece with the main and additional yokes having a slot for the main and additional reinforcing bushings.

The tool consists of a container 1, in which the press stamp 2 and the press washer 3 are installed, as well as the needle 4 passing through them. At the exit of the container 1 a matrix 5 is fixed in the die holder 6, in the slots of which there is a stop 7, playing The role of the composite auxiliary matrix, which forms an annular additional channel 8 with the front part of the needle. The matrix holder 6 also has a detachable matrix 9, the diameter of which is larger than the diameter of the hole of the support 7, consisting of two halves with a longitudinal connector, as shown in FIG. 5. Immediately o in the body of the split matrix 9, as shown in FIG. 6, sockets can be made

about

GJ VJ 00 O About

accommodating the main 10 and an additional 11 reinforcing bushings.

Sockets for accommodating the main 10 and additional 11 reinforcing bushings can be made in separate detachable holders 12 and 13, mounted in front of the split matrix 9 and behind it.

The tool works as follows.

A hollow billet 14 prepared for pressing is placed in container 1. The one-piece sleeves 10 and 11 prepared for reinforcement are installed in the slots of the sleeves 12 and 13. The presence of replaceable sleeves with the sockets allows the use of sleeves of any configuration. The tool is brought to the position shown in FIG. Pressure is applied to the press stamp, the billet 14 is pressed out, squeezing the material into the channel of the matrix 5. Then the material is forced through the channel of the additional matrix 9. When the material reaches abutment 7, its pressing begins and a thickening occurs at the front end of the pipe. After filling the annular cavity between the needle 4 and the inner surface of the additional reinforcing sleeve 11, material is squeezed into the additional channel 8. At the same time, the inner surface of the additional reinforcing sleeve 11 is adhered to the compressible material in the area of the pipe thickening due to its expansion (Fig.2).

Relieve pressure from the ram 2 and dilute the components of the stop 7, allowing longitudinal movement of the additional reinforcing sleeve 11, then applying pressure to the ram 2 again and pressing the main section of the pipe .15 through the additional matrix 9. In this case, an additional reinforcing sleeve 11, together with the product, leaves the cavity of the matrix holder 6 (FIG. 3). At the same time, the internal surface of the base 2 2

 v .-. l h yv / v / y X LxHHH HS X / H I ni H-X.

U / 7/7 //// 9 //

1

Noah reinforcing sleeve 10 with the compression material in the area of thickening of the pipe.

After receiving the specified length of the main section, they stop pressing and remove

pressure from the ram 2, the components of the abutment 7 are diluted further, releasing the sleeves 12, 13 and the additional matrix 9. Then the pressure is again applied to the ram 2 and the material is extruded

through the matrix 5, the diameter of which corresponds to the diameter of the second bulge. In this case, the basic reinforcing sleeve 10 along with the clips 12, which are located on the surface of the product, are pulled out of the container 1,

13 and an additional matrix 9 (figure 4). The product is then separated from the press residue and the detachable additional matrix 9 and the detachable holders 12 and 13 are removed from it in parts, after which the device is ready for

pressing the next product.

Claims (3)

1. A tool for reinforcing extruded pressed tubes containing a container, a ram, a needle, a press washer, a die with a sleeve having sockets for accommodating a reinforcing sleeve, a detachable die, and a matrix holder, which is indicated by the fact that, in order to increase productivity by obtaining hollow articles with reinforced thickenings at both ends in a single pressing cycle, the tool is provided with an abutment mounted behind the split die and an additional sleeve with a seat for accommodating an additional reinforcing sleeve. 2. Tool pop.1, characterized by the fact that it is located first along Pressing and additional clips are made as separate parts. 3. The tool according to claim 2, characterized in that it is located first in the course of pressing and the additional clips are made in one piece with the split matrix. to G1 13 7 / 6  X.  / Ss / y // r7 U l hooch at 1geu HAH / UIHHAAAL UYHLLLLL / UTs XXRXXXX WV  V J “AL. ® Ц2 I $$$ 1Ш% Ш1,   . ЈЈыЈЈ // Л / 1/7; Ј i hGL j ArxyPkAy yy VV W $ I V / h V4SS OKXXX $ S | ЈL ® Ј 2Pf 2 I $$$ 1% I $$$ 1W% W1, ЈЈыЈЈ // Л / 1/7; Ј i hGL j ArxyPkAy yy VV W $ З1 %one  2 /) Qf) X ///////// Л 968iC9l Fig.8 U 9 Thebes. 6 / ; /