Sweet-wrapping machine with constantly rotating twist grippers

摘要

The invention relates to a sweet- wrapping machine having at least one twist head, which comprises a constantly rotating and axially displaceable twist gripper 2, to which an opening and closing movement can be imparted and which is mounted in a twist head housing in which there is a drive shaft 7 for the gripper 2, which shaft is provided with a drive for generating a rotating and reciprocating movement and opening and closing movement of the gripper. Rotational drive is transmitted from the shaft 7 to a gripper shaft 4 by interengaging gears 10 and 11, and reciprocable movements of the gripper shaft 4 to accommodate wrapper shortening on twisting and of a gripper jaw opening and closing rod 3 is produced through levers 15 and 16 co-acting with respective cam tracks 14a, 14b of a cam 6, which is rotatable with the shaft 7 and axially displaceable thereon by means of a tilted two part ring 8 co-axially with the drive shaft. The inner part of the ring is connected by a ball joint 8e with the cam and the outer ring part is mounted on the head housing 1 for adjustable tilting movement so that the axial displacement of the gripper shaft 4 can be varied. IMAGE