Cutting device for cutting an annular body into belts

A cutting device for use in cutting a cylindrical body on a mandrel into annular bodies having the desired width in such a fashion that the cut surface meets at a right angle to the axial line of said mandrel, comprising:

• (a) a first moving table screwed movably in axial direction of said mandrel on a first screw rod which extends in the axial line of said mandrel and is turned by a first motor.
• (b) a second moving table screwed movably in radial direction of said mandrel on a second screw rod which is mounted on said first moving table, extends in radial direction of said mandrel and is turned by a second motor.
• (c) a third moving table mounted on said second moving table in such a fashion that it is adjustable in its position in radial direction of said mandrel to a third screw rod which has a first cutter, extends in radial direction of said mandrel and is turned by a third motor.
• (d) a fourth moving table mounted on said second moving table in such a fashion that it is adjustable in its position in axial direction of said mandrel to a fourth screw rod which has a second cutter, is fixed to said second moving table in radial direction of said mandrel, extends in axial direction of said mandrel and is turned by a fourth motor, and
• (e) a control device equipped with a means of detecting the position of each moving table, a position comparing means to receive output signals from said means of detecting the position and comparing the position with position data set beforehand and a driving circuit to move each moving table according to output signals from said position comparing means.