GB569737A - Improved method of and means for manufacturing articles out of lengths of a strip orband or sheet or plate material by stamping pressing or the like - Google Patents

Abstract

569,737. Punching; shearing. KRETZ, E. July 16, 1943, No. 11588. Convention date, May 28, 1942. [Classes 83 (ii) and 83 (iv)] [Also in Group VIII] A machine for making shoe-lace tags, drawing pins, eyelets, buttons, or,other articles, from strip metal, cardboard, paper, &c. by two or more separate but co-ordinated sets of dies, one set serving to feed the strip and another, fixed horizontally, serving to form separate articles, is characterised by each successive vertical or horizontal movement of both the feeding and holding dies being completed before the next movement starts. The strip M is directed by a spring-pressed roller 31 in between dies 9, 11, the latter being then moved down by a cam 3 on a drive shaft 1 to force pins 13 through the strip. When the downward movement has ceased, a cam 2, on the same shaft 1 causes the set 9, 11 to move to the right. When this movement has ceased, the cam 3 allows springs 17A to move the die 11 up, and when this has ceased the cam 2 allows a spring 15 to move the set 9, 11 to the left, the strip being held by the roller 31. These movements are repeated as long as the shaft is rotated. Each time the die 11 is moved up, a grooved die 24 is moved down by the cam 2 and a lever 6 to out off a perforated length of strip extending beyond a cutting edge 23 and press it on to the ridge of a spring-supported die 29 to form the length cut off into groove form when the die 29 is arrested by the frame 21. The dies 24, 29 remain stationary while the dies 9, 11 move to the left, and are returned to their original position by springs 26, 30 when the die 11 is moving down. More than two sets of dies may be used to act on the strip and may perform any forming, stamping, cutting, &c. operation. Two or more strips may be acted on at the same time by a duplex &c. machine.