| 摘要 |
1,256,148. Coiling; bending by rolls. REPUBLIC STEEL CORP. 14 Feb., 1969 [20 Feb., 1968], No. 8072/69. Heading B3E. [Also in Divisions F2 and G3] In a method and apparatus for coiling strip, defined as meaning any elongate material to be wound into a coil such as rod, wire, bar or tubing, the strip is bent in a bending station prior to winding, the outer turns of the coil being as near as possible to the part of the strip being bent so that the strip is not unbent after bending and before winding on the coil. The apparatus comprises bending rolls 578-1A and 578-1B on one side of the strip and a plurality of smaller rolls 551-11 on the other side of the strip between the strip and the coil. The coil is wound on to a winged spool the wings of which can be swung toward the centre of the spool for removal of the coil. The spool is mounted pivotably about a column 527-1 so that it may be swung clear of a frame carrying the bending apparatus. A system of cams and levers connects one of the bending rolls 578-1B to the mounting carrying the spool such that as the wound diameter of the spool increases, the outer turns bearing on rolls 552-4 and 552-6 cause the mounting to pivot and the levers act on the roll 578-1B to move it away from the coil thereby increasing the radius of the bend put into the strip. The spool is moved in translation past the bending station to wind successive turns on to the coil by a fluid operated cylinder controlled by a ratchet driven valve (see Heading G3P), the ratchet being driven from the motor which drives the spool and being so adjusted that the spool moves one strip width in translation for every turn of the coil. A delay mechanism allows the end turn of a successive layer of the coil to be wound above the last turn of a lower layer. |
