RU1812133C - Hydraulic device for pressing powder-like materials - Google Patents

Abstract

The invention relates to equipment for the processing of materials by pressure. SUBSTANCE: hydraulic press for pressing powdered materials comprises columns connected by upper and lower cross members, a movable beam with a drive, a sliding table with matrices placed on it, punches fixed on the upper cross member, and a sliding table lock. What is new in the hydraulic press is that it is equipped with a device for prepressing the composition and pre-compaction chambers mounted on the carriage to move into the working zones of the compaction and pressing. In this case, the prepress device is made in the form of upper and / lower plates connected by columns located on the upper plate of punches and mounted on guides with the possibility of axial vertical movement, guides for the lower punches, a lifting table with a drive and with lower pressing punches located on it . The preliminary chambers and seals are made with a through working cavity and are mounted on the carriage plate. 2 ill. ate with

Description

The invention relates to the processing of materials by pressure, in particular, to the design of hydraulic devices for pressing powdered materials, for example, to form pyrotechnic products.

The purpose of the invention is to increase the productivity of pressing and to improve the quality of the product by pre-compaction of the pressed composition on the press. For prepress mounted on the press .:

In this case, the pre-compaction is carried out by two punches from two ends in the pre-compaction chamber, which then, together with the compacted composition on the carriage, is fed into the pressing zone

the product and is mounted on the die, playing the role of its guide during the final pressing.

. Pre-compaction and feeding of the composition by means of pre-compaction chambers makes it possible to extrude such products even from difficult to form powder formulations, since in this case it is not necessary to achieve a certain tablet strength necessary for its transport from the tablet zone to the pressing zone.

To achieve this goal, a hydraulic device for pressing powdered materials, containing a press for pressing, with columns connected top and bottom

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cross beam, a movable crosshead with a drive for its vertical movement and a sliding table with a clamp mounted on the crosshead, as well as a pressing tool mounted on the press in the form of dies placed on the sliding table and mounted on the upper crossbar of punches, it is equipped with a press for pressing powder materials in the form connected by columns of upper and lower plates and a lifting table with a drive for moving it, a carriage with a satellite plate mounted on the device with the ability to move between the working areas of the presses for pressing and pressing and the compaction tool, made in the form of pre-punched punches and guide columns mounted on the guide columns mounted on the guide columns with the possibility of moving the tubular guides for the pre-punched punches of the upper plate mounted on the lifting table lower pressing punches and driving tube guides for these punches, as well as chambers with a through working cavity for pressing powder materials, mont They can be vertically displaced in the satellite plate and can be articulated with the pre-punches of the upper plate, with the lower pre-punches and with the end of the tubular guide punches of the press for sealing, as well as with the punches and with the end of the compression dies.

In FIG. 1 shows a hydraulic device for pressing powdered materials; figure 2.- node I in figure 1.

The proposed hydraulic device contains connected by columns 1, the upper cross member 2, the lower cross member with the hydraulic cylinder 3, the movable traverse 4, the sliding table 5 with the tool placed thereon: dies 6, punches 7 mounted on the upper cross member 2, spring-loaded clamps 8, press 9 for pressing for preliminary compaction of the material, equipped with a power hydraulic cylinder 10, columns 11, the upper plate 12, the upper punches 13, the lower punches 14 of the prepress, the lower tubular guide 15 with hydraulic drive 16, the upper tubular guide 17, chambers 18 with a through working cavity for material 19..

The chambers 18 are mounted on a carriage 20 with a satellite plate capable of moving along rails 21 from the working area of the seal on the press to press 9 into the pressing area. Press tools for

the pressed articles are placed on the drawer 5, consist of dies 6, clips 22, devices 23 for disassembling the press tool. For disassembling and assembling the tool, an intermediate beam 24 with a drive 25 is provided on the device. On the press for pressing 9, the upper guide 17 is fastened by means of mandrels 26 to the upper plate 12 and in the original

position is set at a certain height above the chambers 18. There are guide rails 27 for the extension table 5.

A hydraulic press device 15 operates as follows.

In the initial position, the sections of the matrix b of the main press tool are located on the disassembling device 23, the drawer 5 is on the rails 27, the lower tube 0 is a guide, 15, the upper tube is a guide 17 and the cameras 18 with a through working cavity are connected into a package and filled with pyrotechnic composition. Tool holders 22 using

5 of drive 25 and intermediate beam 24.

When the hydraulic device is turned on, the extendable table 5 with the matrices 6 starts up on the movable cross-beam 4, priv-.

Hydraulic cylinders 3 and 10 are set in motion, the dies 6 are crimped by clips 22. At the same time, on the press for pressing 9 by means of punches 13 and 14, the material 19 is pre-compacted in chambers 18. The position of the press for

prepress 9 at the time of preliminary

the sealing material 19 is shown in figure 2 ..

After the return stroke of the hydraulic cylinders

3, 10 chambers 18 with compacted material

0 19 on the carriage 20 with a satellite plate along the rails 21 are moved to the pressing zone and stopped in position above the pressing tool. The hydraulic cylinder 3 is again turned on, the movable beam 4 of the pe45

moves upward - first, the punch 7 pushes the material 19 from the chambers 18 into the die 6, and then with increasing pressure into the hydraulic cylinder e 3 and finally pressing.

0 After this, the movable crosshead 4 is lowered, the chambers 18 on the carriage 20 with a satellite plate are moved to the press 9 for prepressing, the holder 22 is displaced from the matrix 5 by means of the disassembling device 23 and lifted by the drive 25, and the sliding table 5 with the matrices 6 are moved from the main pressing zone along the rails 27 to disassemble the die b and remove the article. Nickle is repeated.

Claims (1)

SUMMARY OF THE INVENTION A hydraulic device for pressing powdered materials, comprising a press for pressing, having columns of upper and lower cross members, a movable beam with a drive for its vertical movement and a sliding table with a latch mounted on the beam, as well as a pressing tool mounted on the press in the form of a sliding table of dies and punches fixed to the upper cross member, characterized in that, in order to increase productivity and improve quality and divisions, it is equipped with a press for pressing powder materials in the form of columns connected to the upper and lower plates and a lifting table with a drive for moving it, a carriage with a satellite plate mounted on the device with the ability to move between the working areas of the presses for pressing and pressing, and a tool for seals made in the form of pre-pressing punches and guide columns mounted on the upper plate mounted on the guide columns with the possibility of moving the tubular guides for pressing the punches of the upper plate, mounted on the lifting table of the lower punches of the pressing and driving tubular guides for these punches, as well as chambers with a through working cavity for pressing the powdered materials mounted in a satellite plate with the possibility of vertical movement and articulation with the pre-punches of the upper plate, with the lower pre-punches and with the end of the tubular guide punches of the press for sealing, as well as with the punches and with the end of the compression dies. Fi g. 2