METHOD OF AND MACHINE FOR MAKING OF STOPPING DEVICE

摘要

FIELD: packing; stopping and capping facilities. SUBSTANCE: proposed invention relates to method of improvement of stopping device 1 formed by screw cap 2 and safety ring 3 provided with ring connecting area 18 with controllable deformation at one side and inner ring projection 13 at other side. According to invention, safety ring 3 is formed as follows: cylindrical mandrel M is brought axially into device 1. Cylindrical mandrel M is provided with peripheral ring cam C. Mandrel is fitted so that lower side 13b of inner ring projection 13 thrusts against cam C. Then effortapplied to device 1 and/or mandrel M of value sufficient to provide some relative travel of mandrel in device in contact with cam C until preliminary forming position is attained and mandrel is held in this position for time sufficient to carry out bending of controllable deformation area 18 outwards and residual bending Of inner ring projection 13 in direction towards screw cap 2 so that its upper side 13a remains tilted through angle of (δ): relative to normal N to longitudinal axis la of device. EFFECT: enlarged operating capabilities. 3 dwg