RU1807906C - Blanking die - Google Patents

Abstract

Usage: when processing pressure sheet material. The essence of the invention:; . 2 shadows: in the die for punching, the ejector is located in the working window of the matrix and is connected to the pressure rods With a traverse. The yoke is connected by a double arm with a pusher. At each stroke of the die, the levers rotate. The pusher passes between the levers. The felled part remains in the matrix window. After a predetermined number of strokes of the stamp, the levers are rotated to a position in which the pusher presses the levers. The pusher will push out all the details from the matrix window., 2 ill.

Description

The invention relates to the processing of metals by pressure, in particular to dies for processing sheet material.

An object of the invention is to increase die productivity by periodically ejecting several parts.

Figure 1 and 2 shows the proposed stamp.

The stamp contains an upper plate 1, on which a matrix 2 with an ejector-, a puller 3 and a pusher 4, a traverse is mounted; a central pusher 6 with a spring 7, levers 8 with an elastic element (in the form of springs) 9, and a lower plate 10. on which a punch is mounted 11 and puller 12.

The force of the springs 9 is less than the force of the ejector from the matrix of one part 13,.

The stamp works as follows.

When the stamp is open on the press, the pusher b under the action of the pushing system of the press is in the lower position, but does not touch the beam 5, which is in the lower position under the action of the springs 9 and levers 8. The shoulders 4 of the levers 8 do not interact with the pusher b and the beam 5.

With each closing of the stamp, the cut-out part remains in the matrix, recessing the ejector into the matrix and through the pusher 4 turns the levers 8, compressing the spring 8. In this case, the pusher 6 makes a movement, bypassing the shoulders A of the levers 8.

When a certain number of cut parts is directed in the matrix, the levers 8 rotate so that the arms A close the position between the end of the push rod B and the cross beam 5, after which, when the upper plate 1 moves up, the ejector 3 from the push rod 8 through the shoulders A of the levers 8, cross beam 5 and the pusher 4 removes parts 13 from the matrix.

When lowering the plate 1, the pusher 6, under the action of the spring 7, moves away from the levers 8, which rotate under the action of the springs 9 and the shoulders of the levers 8 go to the side due to the end of the pusher 6.

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The supply of the stamp with elastic elements installed in the upper plate with the possibility of interaction of each of them with the end of one of the levers connected with the traverse, and pressing this end to the traverse, and the elastic element pressing the pusher in the opposite direction of the traverse, allows for periodic ejection of several cut out and accumulated in the matrix parts and thereby reduce the time to remove parts from the stamp, which increases the productivity of the stamp.

Claims (1)

SUMMARY OF THE INVENTION Die-cutting stamp containing a movable plate on which a pusher with an axis aligned with the axis is placed pressure, traverse, matrix, ejector located in its working window, pressure rods connecting it with the traverse, two-arm levers, each of which is mounted with the possibility of interaction with one end with the traverse, and the other on the one hand with the traverse, on the other with a pusher, characterized in that, in order to increase productivity by periodically pushing several parts, it is equipped with elastic elements mounted in the upper plate with the possibility of interaction of each of them with the end of one of the levers; associated with the traverse, and clamping this end to the traverse, and an elastic element pressing the pusher in the opposite direction to the traverse. 0UV tPuf.2