DEVICE FOR SUCCESSIVELY SEPARATING EACH EQUIVALENT RING FROM TUBULAR WORK PIECE BY NON-CUTTING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a device for separating a ring having a diameter and width larger than usual from a tubular work piece by a non-cutting method. ;SOLUTION: This device for successively separating each equivalent ring from a tubular work piece by a non-cutting method, has at least two cutting rollers which are placed around the tubular work piece to be worked, driven in the same direction and connected each other by a interferential joining procedure, and consists of one base body. The base body has a slide slope face in the entrance side and a specified part in the exit side in a range between both ends. A cut thread formed in a helical shape is arranged between the both parts, and the cut thread has a conical entrance part and a following main part formed in almost cylindrical shape. At least one additional thread 10 is arranged between the threads of a main cut thread 7.;COPYRIGHT: (C)2001,JPO