SU32362A1 - Press for dry brick pressing - Google Patents

Description

When making bricks to produce a high-quality product, it is necessary to produce the same pressure on both beds of bricks. A variety of presses have to accomplish this function complex devices of press mechanisms moving towards each other. The proposed press, which, according to the inventor, is distinguished by its simplicity and easy feasibility, allows, with one punching mechanism, to perform the function of sequential two-sided pressing.

The schematic drawing shows a press for dry pressing a brick in a longitudinal section.

In the proposed press, the molding box 7 is filled with clay. The die 2, being lowered, presses the clay from above until its shoulders 5 touch the mold box 7. At this point the pressing of the clay from above ends, continuing with the movement of the chip 2, the formating box 7 supported by the springs 4 at some height above the plate 5 pusher

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starts to get carried away down. When the forming box 7 moves down, the clay is pressed from the bottom, in contact with the fixed plate 5. The role of the springs 4 supporting the forming box 7 consists mainly in that after removing the pressed brick from the forming box 7, you need to put the forming box in its highest position. When stamp 2 begins to move downwards and enters box 7, a lump of clay, resting on the ejector plate 5 lying on the press table 6, will begin to be pressed. At this time, the molding box remains stationary, since the vertical forces arising from the friction of clay against the walls of the molding box are insignificant and are overcome by the forces of the springs 4.

Subsequently, when the shoulders 5 are pressed into the molding box, the latter, together with the clod of clay, will slide down and the clay will begin to be pressed on the lower side, resting on the plate .5. During the course of the fore box, downwards, under the pressure of the punch 2, the springs 4 unbend, creating some opposition to the movement of the punch 2.

Thus, all the very significant forces resulting from the punching movement are not transmitted directly to the springs, and the operation of the springs is necessary only to raise the molding box and, partly, to overcome the relatively small force of clay rubbing against the side walls of the molding box at top plane molding box.

Structurally, the springs are made in the form of strong, relatively weakly curved springs, 20 mm wide, of a thickness of 12 mm.

By varying the height of the shoulders, the height of the walls of the mold, the box 7, the thickness of the ejector plate 5, the rise of the molding box 7 above the plate 5 (all these parts can be made composite), it is easy to achieve uniformly pressed clay on both sides of the brick.

The subject matter of the invention.

A press for dry pressing of bricks and the like, characterized in that for carrying out sequential two-sided pressing with one punching mechanism, a punch 2 punch equipped with a shoulder 3 and a movable molding box / held by a spring 4 at a certain height above the ejector plate 5 are used.