SU856855A1 - Apparatus for compacting powder materials - Google Patents

Description

(54) DEVICE FOR PRESSING POWDER

MATERIALS

one

The invention relates to mechanical engineering, namely to the processing of materials by pressure, and can be used for pressing products with a large surface.

A device for pressing powder materials is known, having a rotary multi-stage rotor on a frame for transporting a tool with a set of punches and dies at each position and placed sequentially around the circumference of transporting the equipment, a pressing unit, as well as a device for unloading finished products one.

The disadvantage of this device is the impossibility of automating the unloading of finished products.

The purpose of the invention is to improve the conditions of automation.

This goal is achieved by the fact that in a device for pressing powder materials containing a multi-position rotor mounted on a bed that can be rotated for transporting an equipment with a set of punches and dies at each position and placed sequentially around the circumference of the transport of a powder loading and dosing unit, the pressing unit also a device for unloading finished products, each matrix has a folding bottom.

FIG. 1 shows the proposed device, a general view; in fig. 2 shows section A-A in FIG. one.

The device is a press 2 mounted on frame 1 with a slider 3. The press equipment consists of a die 4 and a punch 5. The punch is positioned by guide columns 6 and is driven by a pneumatic actuator 7.

The punch encloses a closed frame 8 with lubrication pockets 9 and a felt seal 10. The frame has stops 11 that restrict its movement upward until the stops touch the screws 12. Air flows to the pneumatic cylinders through flexible pipes 13 and a flat slide consisting of discs 14 and 15. The bottom of the matrix 16 is mounted on the axis 17.

A device for transporting the rig includes a disk 18. mounted on a plate 19 rotatably around a vertical axis, and a drive for intermittent rotation of a disk consisting of an electric motor 20, a gearbox 21 with a drum cam 22 and a disk 23 with fingers fixed on it.

A device for loading and dosing of powder consists of a hopper 24 and an underside of a spline 25 with a window-chamber 26. The gate is driven by a pneumatic actuator 27. In the matrix is shown a pressed article 28.

The device works as follows

The pressed powder is loaded into the hopper 24. At the same time, part of the powder falls into the window 26 of the spigot 25. By means of the pneumatic drive 27, the gate 25 moves from under the bunker and is installed with its window-chamber 26 above the matrix, a part of the powder is poured into the matrix. Then, the punch 5 is pushed down by the action of the pneumatic actuator 7. In this case, the frame 8 first rests on the frame 8 with its lower surface. Upon further movement of the punch 5 down the powder in the window chamber 26 of the gate 27 is pushed into the matrix 4, the density of the powder varies, the matrix is pressed by the powder, the powder is distributed evenly in the matrix.

The downward movement of the punch takes place until the frame 8 with its stops 11 rests against the adjusting screws 12.

After that, the direction of air supply to the pneumatic drive 7 changes and the punch 5 rises to the upper position. The gate 25 under the action of the pneumatic actuator 27 is shifted to the right, cutting off the excess powder from the matrix and occupying the initial position, becoming window camera 26 under the hole in the bunker. A new portion of powder from the hopper enters the window-chamber 26 ..

 After the loading, the punch 5 is again lowered. Frame 8 first abuts against the matrix, then the punch with its lower surface rests on the powder in the matrix. In this position, the punch and die are transported to the pressing position. Transport takes place when the disk 18 rotates from the electric motor.

20, through a gearbox 21 with a drum cam 22 and a disk 23 with fingers. When turning the disc 18, the punch and the die fall under the slide 3 of the press 2. At the pressing position, both cavities of the pneumatic actuator 7 are connected to the atmosphere. From the incoming signal, the press is triggered, the slider is lowered and hits the punch 5. At the same time, the powder mass is pressed to form products 28.

After the press ram is raised upward, the disk 18 is moved by the intermittent-rotation drive and the finished product falls into the unloading position. At this point in the plate 19 there is a hole (not shown in the drawing). The bottom 16 of the matrix under the action of its own weight leans, B the rod cavity of the pneumatic actuator 7 enters the air and the punch 5 squeezes the finished product 28 from the matrix 4. The product 28 enters through a window in the plate 19 to the conveyor (not shown).

The device allows to improve the quality of products and increase the yield of products.

Claims (1)

Invention Formula A device for pressing powder materials, comprising a multi-position rotor mounted on a frame for rotation and for transporting an equipment with a set of punches and dies at each position and arranged sequentially around the circumference of transporting the equipment; so that, in order to improve the conditions of automation, each matrix has a flip bottom. Sources of information taken into account during the examination 1. Drachev G. G. and Gamuzin Yu. P. Complex production mechanization, batteries. L., “Energie, 1969, p. 158-159.