Patent ID: 9079236
Filing Date: 2015-07-14
Classification: B21D

Abstract:
1. A machine for shaping a sheet, where the machine comprises: a first drive shaft having an inner end and an outer end; a second drive shaft, having an inner end and an outer end, the second drive shaft arranged in a common plane with the first drive shaft; a drive unit, coupled to both the first drive shaft and the second drive shaft at their respective inner ends, the driving unit comprising a first transmission at the inner end, to run said first drive shaft and said second drive shaft to rotate in opposite rotational directions; a first die and a second die, respectively coupled to said first drive shaft and said second drive shaft in their respective outer ends, the first and second dies formed with a profile, such that when the sheet is forwarded between the first and second dies in a plane tangential and common to the dies, a profile is formed in the sheet; wherein two arms enclosing the first and second drive shafts define a working area between said first and second drive shafts, said arms having surfaces facing each other and the greater part of said surfaces facing each other being located at a greater distance (a) from each other than a distance (b) between the outermost ends of the drive shafts to allow additional space for the sheet to access to the machine while working inside said working area, and wherein at least one of the first and second drive shafts is divided into a longer part and a shorter part where the longer part of said at least one first and second drive shafts is arranged such that the longer part of said divided drive shaft is arranged in parallel with said plane tangential and common to the dies at a greater distance from said plane tangential and common to the dies than the shorter part of said divided drive shaft, and said die being mounted on said shorter part of the drive shaft.