BOTTLE GRIPPER FOR PACKING AND UNPACKING MACHINES

摘要

A bottle gripper for packing and unpacking machines is formed of an upwardly extending double collar including an inner elastic wall and an outer elastic wall spaced radially outwardly from the inner wall with the two walls connected together at their lower ends. The space between the walls can be charged with a pressure medium. A connecting piece extends across the upper end of the outer wall with a bead formed on the outer wall which seats within a groove formed in the connecting piece. The outer wall is tightly enclosed by an upwardly extending inelastic sleeve. In one arrangement webs extend between the inner and outer walls dividing the space therebetween into individual cavities. In another arrangement, a guide is formed on the interconnected lower ends of the two walls and the inner surface of the guide has a frusto-conical shape.