FLASH TRIMMING APPARATUS Russian patent published in 1995 - IPC

FIELD: metal pressure forming. SUBSTANCE: apparatus includes a base, a stopper for fixing a blank, a lower die and a punch with cutting edges. The apparatus is also provided by a carriage for placing a clamp with a microneedle blank, a driven stopper, a drive unit for reciprocation motion of the carriage in a cross direction, a drive unit for moving the lower die. The lower die is in the form of a strip, having Y-shaped cutting edges on its end portion. The punch is stationary one in the form of a prism. The drive unit for moving the die is in the form of pneumatic cylinder, whose rod is jointly connected with an end portion of a lever, whose other end portion is jointly secured to the base. That lever is provided by a roller and by a guide pin. EFFECT: enhanced accuracy of trimming. 1 cl, 5 dwg