GB779112A - Apparatus for continuously feeding metal strip - Google Patents

Abstract

779,112. Processing strip. SHARON STEEL CORPORATION. Jan. 3, 1956 [Jan. 17, 1955], No. 158/56. Class 83 (2). [Also in Group XVI] A loop - forming device for use in apparatus for continuously processing strip metal comprising fixed and movable guide rolls for guiding the strip in a horizontal loop is characterized by a number of strip-supporting rollers disposed between the guide rolls and between the upper and lower runs of the loop to prevent the upper run of the strip from sagging down into contact with the lower run, the supporting rollers moving to spaced and closed-up positions as the guide rolls separate and move towards each other. Strip 1 from a coil 2 passes through a shear stand 5, welder 6, cleaning bath 8, heat treatment furnace 18 and coating bath 20 to a coiler 23. The looping device is mounted above the furnace and comprises fixed guide rolls 9 and 10 at one end and at the other end a movable guide roll 12 mounted on a carriage 13 movable along a horizontal track 27 on the top of the furnace. The strip leaves the lower run of the loop over fixed guide rolls 15 and 16 and a tension roll 17. The lower run is supported on fixed rollers 14 and the upper run on rollers 53 mounted on hanger plates 54 movable along an overhead track 52. Adjacent plates 54 are connected by chains 56 carrying counterweights 58, the end plates being connected by chains to a fixed part of the apparatus and to the carriage 13. Strip to be processed is taken alternately from coils 2, 2a, the front end of one strip being welded to the rear end of the other. During welding the strip continues to pass through the processing baths and furnace and the carriage 13 moves to shorten the loop, the plates 54 being moved closer together by means of buffers provided on the carriage and on each of the plates and by means of the counterweights. On completion of the welding the carriage is returned to the Fig. 1 position by a winch 24 and cable 25, the plates 54 being returned to spaced position by the chains 56.