PULLING AND CUTTING UNIT OF SHAPE-BENDING AGGREGATE Russian patent published in 2002 - IPC

FIELD: equipment for working rolled strips, particularly for making cold bent merchant rolled shapes. SUBSTANCE: pulling and cutting unit of shape bending aggregate includes drum type shears having drums mounted in housing on shafts. Lower shaft is driven one; it is kinematically joined with pair of feeding horizontal rollers. Upper shaft is driven through gearing. In cross grooves of drums cutters are arranged. Paired horizontal rollers are mounted at outlet of unit. Lower roller of said pair is kinematically joined with lower shaft of shears. Two pairs of vertical rollers are mounted with possibility of separate vertical motion between feeding rollers and shears. It is possible to change spacing between them in crosswise direction. In housing of shears at control side oval opening is formed in level of crossing cutting circles of cutters. Upper gearing of shears includes two gear wheels of the same width, one of those gear wheels may rotate. EFFECT: reduced metal consumption at making merchant bent shapes with small cross sections, enhanced geometry of such shapes. 2 dwg