SU1031579A1 - Die for cutting off parts from bands or strips - Google Patents

Abstract

STAMP FOR CUTTING DETAILS FROM THE TAPE OR BAND, containing the lower and upper plates carrying the matrix and the punch mounted on the bottom plate a device for moving the material, including two carriages, at least one of which is installed with the possibility of reciprocating in horizontal plane, characterized in that, in order to increase productivity by making two working strokes of the punch in one stroke of the upper plate, it is equipped with a pusher and pull mounted on the upper plate, two shoulders a lever mounted on the bottom plate with the possibility of swinging movement in a vertical plane and interacting with one arm with a pull and the other with a pusher and punch; the punch is placed on the bottom plate and is spring-loaded in the direction of the top plate; the other carriage is also installed with the possibility of reciprocating in the horizontal direction and both carriages (L are connected to each other by a flexible link.

Description

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The invention relates to the processing of metals by pressure, in particular to mechanized tooling, and can be used for sheet metal stamping of parts in various fields of engineering. A stamp is known for cutting parts from sheet material containing a die and a punch mounted on the bottom plate, which is spring-loaded in the direction of the press ram and interacting with the lever 1. A disadvantage of the known stamp is low productivity and impossibility of use in combination with automatic feed of band or strip material, j Close to the proposed technical essence and the achieved effect is a stamp for cutting parts from a tape or strip containing upper and lower plates, carrying e a matrix and a punch mounted on the bottom plate of a device for the material, comprising two carriages, at least one of which is installed with the possibility of reciprocating movement in the horizontal plane 2. The disadvantage of this stamp is that it has a low productivity, as it is used in stamping one stroke of the punch with one stroke of the top plate. The purpose of the invention is to increase productivity by making two working strokes of the punch in one stroke of the upper plate. This goal is achieved by the fact that a die for cutting parts from a tape or strip containing lower and upper plates, carrying a die and a punch, a device for moving material mounted on the lower plate, including two carriages, at least one of which is installed with the possibility of returning translational movement in the horizontal plane, provided with a pusher and a pull, mounted on the top plate, with a double-arm lever mounted on the bottom plate with the possibility of punitive movement in the vertical plane and interacting with one arm with a pull and the other with a pusher and a punch, the punch is placed on the bottom plate and is spring-loaded in the direction of the top plate, the other carriage is also installed with the possibility of reciprocating movement in the horizontal direction and both carriages are interconnected by a flexible connection. FIG. 1 of which the feeding device is installed on the bottom plate of the stamp; in fig. d along arrow A in fig. 1. A stamp for cutting parts from a tape or strip contains two movable carriages 1 and 2 mounted on the bottom plate 3 of the stamp. On the carriage 1 there are wedge supports 4 interacting with a wedge 5 fixed on the top plate 6. The carriages 1 and 2 are interconnected by a cable 7 thrown over the fixed block 8. The carriage 2 is equipped with a screw 9 for adjusting the feed jib and is spring-loaded rod 10. On the bottom plate 3, a matrix 11 is installed with a puller 12 and a punch 13, which is spring-loaded in the direction of the upper plate 6 of the compression spring 14. On the bottom plate 3 there is a double-arm lever 15 on the bracket 16 and a stop screw 17. On the top plate 6 there are placed ha 18 and a pusher 19. The stamp works as follows. When the press ram (not shown) moves downward, the ha 18 together with the upper plate 6 is lowered, and the punch 13 under the action of the spring 14 rises, turning the double-shouldered lever 15 all the way into the screw 17, When the puller 12 releases the punch 13 from the workpiece material where the punch 13 entered during the previous move, the wedge 5 acts with a skirted part on the wedge supports 4 and moves the carriage 1 in the direction of material loading indicated by the arrow. The carriage 1 moves the carriage 2 in the opposite direction with the help of a cable 7, while the spring 10 is compressed. At this time, the carriage 1 captures the material and moves it in the feed direction, and in the carriage 2 it slips freely. When the press slide is lowered so that the entire part of the wedge 5 is below the axis of the wedge supports 4, the carriages 1 and 2 stop, the pusher 19 turns the double-arm lever 15 and acts through it on the punch 13, which cuts the part. When the press crawl moves upward, the punch 13 under the action of the spring 14 rises, turning the double-arm lever 15 until it stops against the screw 17. The puller 12 releases the punch 13 from the workpiece material, and the beveled part of the wedge 5 begins to interact with the wedge supports 4. Under the action of the spring 10, the carriage 2 moves in the feed direction and with the help of the cable 7 moves the carriage 1 in the opposite direction. The carriage 2 captures the material and moves it in the feed direction, and the material slips through the carriage 1. The wedge supports 4 abut against the beveled part of the wedge 5 and this restricts the movement of the carriages 1 and 2. The movement of the carriages 1 and 2 stops when the carriage 1 rests on the screw 9. With the further rise of the slider, the ha 18 turns the double-arm lever 15, which acts on punch 13 and cutting the part.

Then the cycle repeats.

The proposed die has high productivity due to the fact that two working strokes of the punch are made in one stroke of the upper die plate.

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Claims (1)

STAMP FOR CUTTING ITEMS FROM TAPE OR STRIP, containing the lower and upper plates, supporting the matrix and punch, a device for moving the material mounted on the bottom plate, including two carriages, at least one of which is installed with the possibility of reciprocating movement in horizontal a plane, characterized in that, in order to increase productivity by performing two working strokes of the punch in one stroke of the upper plate, it is equipped with a pusher and a rod mounted on the upper plate, a two-arm lever m mounted on the bottom plate with the possibility of rocking movement in a vertical plane and interacting with one shoulder with a thrust and the other with a pusher and punch, the punch is placed on the bottom plate and spring-loaded in the direction of the upper plate, the other carriage is also mounted with the possibility of reciprocating movement horizontal direction and both carriages are interconnected by a flexible connection. (P 6ZS1С01 J>