MACHINE FOR PRODUCING ELONGATED SHELLS OF CAN DIMENSION

摘要

The present invention provides a machine for producing elongated shells of can dimension from blanks fed alternately to two spaced shell forming stations and comprising: (a) die means arranged on a common horizontal axis at a pair of spaced die stacks which identify said stations; (b) feed means for feeding the blanks to ready position on said axis at each station; (c) a horizontal double-acting punch body arranged on said axis between the die stacks; (d) force applying means for moving the punch body in opposite directions through the die means; and (e) feedback means monitoring punch body position and constantly adjusting the force applying means to establish substantially constant velocity of the punch body moving through the respective die means.