The backgauge
control features a keypad display, LED readout, and ninety-nine
pre-select programmable positions. Under normal use, the operator
keys in the desired backgauge setting, presses the "Go To"
key, and the backstop bar moves to position. The Accurshear
may also be programmed for single-step, or sequential shearing.
To accommodate high accuracy, the backstop bar actually moves
slightly beyond the desired position and then comes forward
to eliminate any clearance between the lead screws and nuts.
The shear operator may also choose the backgauge retract feature
via the key switch. This retracts the stop bar once the holddowns
clamp the material just prior to the shear cycle to avoid
material wedging between the shear knives and stop bar. |