Roll stand assembly

A roll stand assembly for processing a sheet product, the roll stand assembly comprising:

• a frame;
• a plurality of rolls on the frame and including first and second rolls respectively having first and second axes,
• the first and second axes substantially parallel with the first and second rolls operatively positioned on the frame,
• the first roll having a first sheet engaging surface and a first shaft assembly projecting axially from the first sheet engaging surface,
• the second roll having a second sheet engaging surface and a second shaft assembly projecting axially from the second sheet engaging surface,
• the first and second rolls relatively movable between:
• a) an operating relationship wherein there is a gap within a first dimensional range between the first and second sheet engaging surfaces with the roll stand assembly in an operative state;
• and b) an open relationship wherein the gap dimension is outside of the first dimensional range so as to permit access by an operator through the gap to between the first and second rolls;
• and
• a safety assembly that prevents inadvertent changing of the first and second rolls from the open relationship into the operating relationship,
• the safety assembly comprising a first chuck component mounted for movement relative to the frame between:
• a) a running position wherein the safety assembly is in a disengaged state and the first and second rolls can be relatively repositioned from the open relationship into the operating relationship;
• and b) a lockout position wherein the safety assembly is in an engaged state and the first chuck component resides between parts of the first and second rolls and prevents relative movement between the first and second rolls in a manner that would allow the first and second rolls to be changed from the open relationship into the operating relationship.