SU379301A1 - Sexily - Google Patents

Description

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The invention relates to the field of metal forming, in particular, to devices for the manufacture of products by the method of reverse pressing.

The known design of a horizontal press for the manufacture of products by the method of reverse pressing contains an anterior traverse mounted on the frame, a traverse traverse connected to it by means of columns with the working cylinder placed in the last cylinder and connected through the hydraulic cylinders to the front traverse by a movable container with a container located in it, and also having a body scissors for separating pressostak installed directly on the container holder.

However, in a known press, the scissor cylinder moves with the container holder and to supply the working fluid to it, telescopic or hinged devices are required which complicate the design of the press and make it difficult to position the container along the axis of the press due to possible distortions of the telescopic or hinge devices. The scissor barrel is in close proximity to the heated container, which leads to premature removal of the sealing cuffs.

In order to increase the stability of the container holder when separating the press residue in the proposed press, the shears are fixed on the press frame, and their body is spring-loaded in the direction of the press residue separation and provided with an L-shaped groove for free entry into it of the protrusion provided on the container holder.

FIG. 1 shows the proposed press, a longitudinal section; in fig. 2 is the same cross section (view of the container holder and scissors for separating the press residue from the product); in fig. 3 - cut along the elastic elements of the scissors.

A horizontal hydraulic press consists of a front cross member 1 with a press stamp 2 fixed on it with the die 3, a back cross member 4 with a working cylinder 5, columns 6, connecting the front crosshead from the rear, pressing the crosshead 7 with a conical stopper 8, the container 9 of the holder 10 with a T-shaped protrusion 11, cylinders 12 for moving the container holder, the base 13, scissors for separating the press residue 14 from the product 15, consisting of a body 16 with a T-shaped groove mounted on the base 13 through sets of cup springs 17, a cylinder - a ram 18, housed in a scissors body, a knife 19 fixed on a slider cylinder 18, a piston 20, a cross member 21 and two tons of 22, connecting the cross member 21 to the scissors body.

The T-shaped groove of the shear body encircles the corresponding protrusions 11 on the container holder with a gap 23.

The press works as follows.

The ingot is fed to the axis of the press between the container holder 10 and the conical plug 8. The container holder moves, resulting in the ingot being loaded into the container 9. With the idling of the pressing beam 7, the opening of the container 9 is closed with a conical plug 8, after which the working stroke of the pressing beam 7 causes the ingot to be squeezed through the die 3 and a hollow press stamp 2. When pressed, the container carrier 10 moves together with the pressing head 7 under the action of the force of the working cylinder 5.

Due to the clearance, the T-shaped protrusion // of the container holder moves freely relative to the T-shaped groove of the scissors body.

After the extrusion is completed, the pressing yoke is retracted to its original position. When the container holder is being moved by the cylinder 12 to the press ram 2, the press residue 14 is pushed out of the container 9.

Pressure is applied to the cavity of the cylinder 18, which, when the knife 19 moves upward, separates the press residue 14 from the product 15. During the working stroke of the slide cylinder 18 under the action of the forces that arise when the press residue is separated from the product, the shear body lowers to the stop -shaped protrusion // kopterner holder. At the same time, the sets of dish-shaped dinners 17 are compressed by the size of the gap 23, and the force of separation of the pressostat from the product is closed on the container holder and the body of the scissors, without transferring to the base 13 and the columns 6. After

separating the press residue 14 from the product 15, the cylinder slider 18 is lowered, the sets of cup springs 17 are expanded, overcoming the weight of the scissors, and form the initial gap 23 between the T-shaped groove

shear body and the corresponding protrusion of the container holder. Thereafter, the container holder 10 moves freely without touching the shear body. Instead of disc spring sets

other elastic elements can be used: coil springs, hydraulic or pneumatic cylinders, etc.

Subject invention

A horizontal press for the manufacture of products by the method of reverse pressing, containing a front traverse mounted on the frame, connected to it by means of columns, a rear traverse with a working cylinder placed in the latter and connected through hydraulic rams to a front traverse by means of hydraulic rams with a container located in it,

and also having body shears for separating the press residue, characterized in that, in order to increase the stability of the container holder, the shears are fixedly mounted on the press frame, and their body is made spring-loaded in the direction of the press residue separation and provided with a T-slot for free entry into him protrusion provided on the container holder.

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Fig1

fig 2

Fig 2