Apparatus for changing the rotary position of a slotter member and for changing the relative position between fixed and movable knives on the slotter member

An apparatus for registering a rotary slotter member with a corrugated box blank traveling through a box blank slotter-scorer machine and for changing the angle between a fixed knife means and a movable knife means on said slotter member to accommodate different size box blanks during operation of said machine without having to interupt operations, comprising:

• a first rotatable shaft means spaced above the path of advance of said box blank traveling through said slotter-scorer machine;
• said first shaft means rotatably secured to a frame means of said slotter-scorer machine and having at least one of said slotter members secured thereto for rotation above said box blank;
• said slotter member having a fixed knife means secured to said slotter member and a movable knife means rotatably mounted on said slotter member;
• a registry changing means connected between said first shaft means and a drive means for rotating said slotter member and for changing the phase relationship of said slotter member to the leading edge of said traveling box blank;
• said drive means advancing said box blank through said slotter-scorer machine and connected to an input portion of said registry changing means;
• a second rotatable shaft means spaced above said first shaft means and rotatably connected to said frame means;
• a linking means connected between said second shaft means and said movable knife means;
• a phase changing means connected between said first shaft means and said second shaft means for rotating said movable knife means;
• and
• a selectively operable remote control means for:
• 1. operating said registry changing means to selectively change the rotary position of said fixed and movable knife means with respect to said drive means, said phase changing means and said linking means maintaining the relative position of said fixed and movable knife means during operation of said registry changing means, and for
• 2. operating said phase changing means independently of said drive means to selectively change the position of said movable knife means forward and backward relative to the position of the fixed knife means.