Patent ID: 8307686
Filing Date: 2012-11-13
Classification: B21D

Abstract:
1. A roll-forming machine for the formation of C-shaped components and Z-shaped components selectively from sheet materials, comprising: a machine base, said machine base comprising a guide block unit provided at a front side thereof for guiding in a sheet material for processing; multiple pairs of forming roll sets bilaterally mounted on said machine base, the multiple pairs of forming roll sets including a first pair of forming roll sets, a second pair of forming roll sets, a fourth pair of forming roll sets, an 11 a first adjustable shape-forming wheel set, said first adjustable shape-forming wheel set comprising an adjustable shape-forming wheel assembly mounted on said machine base at a left side and a non-adjustable shape-forming wheel assembly mounted on said machine base at a right side, said adjustable shape-forming wheel assembly comprising a wheel holder turnable vertically relative to said machine base through 180-degrees, an upper shape-forming wheel and a lower shape-forming wheel respectively pivoted to the wheel holder at different elevations, a shaft affixed to the wheel holder, and a motor having an output shaft coupled to the shaft and controllable subject to sensor elements to rotate the shaft forwards/backwards through 180-degrees, said non-adjustable shape-forming wheel assembly comprising a wheel holder fixedly mounted on said machine base and an upper shape-forming wheel and a lower shape-forming wheel respectively pivoted to the wheel holder at different elevations; a second adjustable shape-forming wheel set mounted on said machine base at the left side of the machine base, said second adjustable shape-forming wheel set comprising a wheel holder vertically turnable relative to said machine base through 180-degrees, an upper shape-forming wheel and lower shape-forming wheel respectively pivoted to the wheel holder of said second adjustable shape-forming wheel set at different elevations, a shaft affixed to the wheel holder of said second adjustable shape-forming wheel set, and a motor having an output shaft coupled to the shaft of said second adjustable shape-forming wheel set and controllable subject to sensor elements to rotate the shaft of said second adjustable shape-forming wheel set forwards/backwards through 180-degrees; a first lower auxiliary shape-forming wheel set mounted on said machine base and set between the 10 a second lower auxiliary shape-forming wheel set mounted on said machine base and set between the 11 an upper auxiliary shape-forming wheel set mounted on said machine base and set between the 12 a small straightener set between the 13 a big straightener set at a rear side of said machine base and adapted to straighten each processed C-shaped component or Z-shaped component; wherein: the wheel holders of said adjustable shape-forming wheel assembly and said non-adjustable shape-forming wheel assembly of said first adjustable shape-forming wheel set are respectively fastened to a respective connection frame bar with fastening members; two connection frame bars of said first adjustable shape-forming wheel set are respectively fastened to the racks of the first and second pairs of forming roll sets with fastening members; the shaft of the wheel holder of said adjustable shape-forming wheel assembly is pivotally connected to the associating connection frame bar and rotatable with the output shaft of the motor of said adjustable shape-forming wheel assembly; the wheel holder of said adjustable shape-forming wheel set is fastened to a connection frame bar with fastening members, the connection frame bar of said adjustable shape-forming wheel set having two sides respectively fastened to the racks of the first and fourth pairs of forming roll sets with fastening members; the shaft of the wheel holder of said adjustable shape-forming wheel set is pivotally connected to the associating connection frame bar and rotatable with the output shaft of the motor of said adjustable shape-forming wheel set.