Hello, fellow machinists. We have just recently added a sheet rolling machine to our production capacity but we experience problems setting it up without a lot of samples. The parameters which we have access to in programming mode are bend and feed - feed is pretty much straight-forward and doesn't need explaining but "bend" is where things get tricky.
The machine has a total of 4 shafts - three lower shafts positioned in line and held by two plates in their ends, the plates and shafts can rotate around the longitudinal axis of the machine with the bearings being at the two ends of the center shaft, the upper shaft is centered in line with the lower center shaft and isn't attached to the same plates the lower shafts are and only transmits power. The way that the lower shafts rotate is by being powered by two screws - "bend" zero is when the shafts lay flat. "bend" value is defined by the rotation of the two screws forward of backward depending on the side of the machine you are loading the parts from and the general direction of bending. I established what the "bend" values correspond to degrees of tilt of the lower shafts assembly but do you have any idea to what degrees should we set it up to bend let's say a 3mm sheet to a diameter of 700mm? The unfolded length of the part is 2198mm but what angle should we use to get it done? The machine is nothing similar to a press brake and the machine manufacturer telling me that we have to do it by trial and error make me feel really confused right now Thanks in advance!
The machine has a total of 4 shafts - three lower shafts positioned in line and held by two plates in their ends, the plates and shafts can rotate around the longitudinal axis of the machine with the bearings being at the two ends of the center shaft, the upper shaft is centered in line with the lower center shaft and isn't attached to the same plates the lower shafts are and only transmits power. The way that the lower shafts rotate is by being powered by two screws - "bend" zero is when the shafts lay flat. "bend" value is defined by the rotation of the two screws forward of backward depending on the side of the machine you are loading the parts from and the general direction of bending. I established what the "bend" values correspond to degrees of tilt of the lower shafts assembly but do you have any idea to what degrees should we set it up to bend let's say a 3mm sheet to a diameter of 700mm? The unfolded length of the part is 2198mm but what angle should we use to get it done? The machine is nothing similar to a press brake and the machine manufacturer telling me that we have to do it by trial and error make me feel really confused right now Thanks in advance!