A device for stacking and, if appropriate, blocking of plastic bags

摘要

Plastic bag are stacked as they are received from a bag making machine by a radial arm transfer wheel whose suction arms engage the bags by transferring edges thereof and with the ends of the arms so that the bags are pressed onto needles of needle bars on a needle bar basket. The needle bars are rotated, with the bags suspending therefrom the spindling position through an intermediate position into a smoothing and removal position in which the hanging stack is lifted to a horizontal orientation and smoothed by a beam movable above the stack and having a smoothing brush engaging the stack. In this latter position a stripper is shifted past the needle bar therefrom. The stack is carried away by a clamp.