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Tin Knocker 2236 Rolls
Forming Machines, or Slip Roll Formers, are intended for rolling sheet metal or forming cylinders of
various diameters.
The two pinch rolls feed the sheet against the rear roll, curving the sheet and forming the cylinder. The
rear or forming roll can be adjusted by screws on the rear of left and right end housings, varying the
diameter of the required cylinder. Pinch rolls can be adjusted for stock thickness by screws on front of end
housings.
The capacity ratings of Tin Knocker forming machines are based on forming mild steel, fully annealed, the
full length of the rolls and are considered as standard by the sheet metal trade for forming rolls of a
specified diameter and length. Definite capacities, however, depend upon the diameter and length of
cylinder to be formed and the number of passes through the rolls to obtain a given diameter. Stiffness of
material and uniformity desired are also factors. When a forming machine is overloaded, the immediate
result will be deflection in the center of the rolls, resulting in cylinders bulged in the center.
In order to reduce the number of rear roll adjustments when sheets are of light gauge, proceed as follows:
1)
Insert the sheet between two pinch rolls.
2)
Bend the sheet upwards and slightly around the top roll.
3)
Continue to pass the sheet through the machine.
This will also reduce the flat spot on the leading edge of the sheet.
The right-hand housing is provided with a hinged journal cap and lifting latch. After the cylinder is
formed, the latch is lifted and the lever is pressed down. This raises the top roll and the cylinder can be
slipped off the roll without distortion.
Forming machines are provided with grooves in the right end of the lower and rear rolls to allow for
forming cylinders with a wired edge.
WARNING: Before operating, machines must be bolted to work bench. If floor stand
has been provided, machine must be bolted to floor stand with bolts provided. Stand must be
securely lagged to floor.
Содержание TK 2236
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