Patent ID: 6609997
Filing Date: 2003-08-26
Classification: B24B,B24D,B26D,B31B

Abstract:
In a box making machine including a rotary die cutter, the method of resurfacing the blanket of the anvil of the rotary die cutter including the steps of abrading the surface of the blanket with a rotating abrading cylinder engaging the surface of the blanket during box production while the rotary die cutter is cutting or creasing corrugated boards, and using the position of the abrading cylinder relative to the anvil to determine how much the speed of the anvil should be changed to compensate for the change in the diameter of the anvil, and wherein during box production while the die cutter is operating on the boards the abrading cylinder through the use of a computer is automatically and repeatedly fed radially into the anvil blanket a predetermined amount and then retracted from the anvil blanket to repeatedly resurface the anvil blanket, and the change in the diameter of the anvil blanket is automatically computed and the speed of the anvil is automatically changed to compensate for the change in the diameter of the anvil blanket.