公开(公告)号：US3590883A

公开(公告)日：1971-07-06

申请号：US3590883D

申请日：1969-04-16

申请人： ROHN MFG CO

发明人： KIHS JOSEF K

IPC分类号： B21F45/00 ,  B21F45/16

CPC分类号： B21F45/16 ,  B21F1/00 ,  B21F3/04 ,  B21F11/00 ,  B21F23/005 ,  B21F45/00

摘要： Apparatus and method for automatically producing bent wire clips comprises a vertical and horizontal wire straightener which receives and straightens a continuous length of wire, a hitch feed assembly through which the wire passes and which is adjustable to measure and intermittently feed the exact length of wire required for the various sized clips, a wire cutoff assembly, a wire-forming means and a grommet inserting means. As the wire piece is cut off from a length of continuous wire it is gripped by a pair of upper and lower coacting pressure plates which clamp a central portion of the wire piece and secure it during formation of the clip ends. To form a spiral end standoff clip that may be snapped on a cylindrical pole the wire forming means comprises a rotating and laterally movable spiral twist winder which forms the one end of the wire piece about a twist wind arbor while a grommet hook has been formed on the forward end of the wire piece. An insulating grommet may be supplied by a feed system and pushed into the grommet hook by a synchronized air ram. The upper and lower pressure plates now release the finished product and the same is blown off the spiral twist winder onto an extension arm from which it may be counted and packaged.