According to the International Patent Classification (IPC), the subject of the invention is classified and it is marked with the symbol B30B 11/22.

TECHNICAL PROBLEM SOLVED WITH THE PATENT The technical problem that is solved with this invention consists of the following: the same equipment can include several kinds of recipients different in length and diameter, from where comes the possibility for obtaining the largest, i. e. smallest profiles as cross-section and length. With the possibility for moving the front disc it is enabled to obtain extremely big lengths.

The problem for increased productivity is solved with the possibility for direct, indirect and combined pressing. The empty running are cut for at least two times in relation to the standard pressure machines, with what the productivity is increased, and the weight of the pressure machine is significantly lower. In the same time the work is performed with double greater pressure from 650 to 1000 bar.

STATE OF THE ART The pressure machines are known equipment with different sizes, weights and look and they serve for production of extruded profiles of metal.

This pressure machine differs from the others because the size is significantly lower- above 8 times, and in length around 3 times. Other feature is that the thermal finish of the profile is performed on the line itself, on which finished heating, and then cooling is performed. With that the duration of the production cycle is decreased significantly, with what the productivity is increased, as difference from the known processes of extrusion, where the hardening is a separate process of extrusion and it lasts longer time.

SOLUTION OF THE TECHNICAL PROBLEM The construction solution of the equipment for extrusion of soft and hard aluminum alloys, as well as other metals, according to this invention consists of front movable disc and back fixed disc that serves as cover of the cylinder. The discs can be with a triangle shape at forge pressure machine or with rectangular shape at the cast pressure machine. Three (four columns at the cast one) columns for connections the front and the back disc, cylinder with a piston (plunger) for performing maximum force, recipient in which the pressure of the extrusion of the aluminum is performed, (a change of the recipients depending of the assortment of the product), a mechanism for taking and placing the material for extrusion, as well as cleaning the remains of the pressure machine, reverse hydraulic columns, piston (plunger), tools for shaping the product, and it is changing depending of the needs of the production.

This invention can be most clearly described through an example by referring to the accompanying drawings: FORGE PRESSURE MACHINE with a triangular shape on the front and the back disc.

-Figure 1, first position of the pressure machine -Figure 2, second position-moving the recipient back toward the cylinder -Figure 3, third position-moving the recipient forward toward the tool CAST PRESSURE MACHINE with a rectangular shape on the front and the back disc -Figure 4, axonometric look -Figure 5, placing the raw material and movement of the recipient forward -Figure 6, a mechanism for delivering the raw material and cleaning from the remains of the pressure machine.

Referring to the drawings 1,2,3, for the forge pressure machine, and 4,5,6, for the cast pressure machine, the equipment for extrusion of soft and hard aluminum alloys, as well as other metals (copper, titan, steel) consists of mechanism (9) for catching the raw material and cleaning the remains of the pressure machine. The raw material with the reached temperature is placed in the empty space in front of the mold (6), whereas the recipient (5) is drawn backwards toward the cylinder (3) and the piston (plunger) (7), Figure 2. The recipient (5) starts to move towards the tool (6) where it surrounds the piece of raw material more than half of its length. The mechanism (9) releases the piece of raw material and it goes back in the starting position, whereas the raw material stays in the recipient (5). The recipient is attached to the tool (6) placed on the front disc (1) and the working running starts by moving the piston (plunger) (7) forward with power that the pressure machine possesses, which is reached with hydraulic aggregate. With that procedure the extrusion of the profile toward the placed tool (6) is performed. After the termination of the pressing the

plunger through the recipient and the two reverse hydraulic cylinders (8) is returned in the end right position, with what the cycle of the pressure ends, and the placement of the new raw material for working is enabled. In this cycle the connection between the front (1) and the back (2) disc is through three, actually four columns (4), which accept and provide the needed power for the pressing. The front disc (1) is intended to be moved in the axial direction towards the program of the pressing (length and weight). The recipient (5) is changeable in the inner diameter and in the length depending on the program for pressing (length and weight of the profile).

1. Front disc (movable) 2. Back disc 3. Cyliner 4. Column 5. Recipient 6. Tool 7. Plunger (changeable) 8. Reverse hydrolic cilinder