Abstract: A method for controlling a slitter-scorer apparatus in which a feed line for a paperboard sheet does not need to be stopped when order specification of cutting or scoring for the paperboard sheet has been changed, thereby reducing a setup time, is proposed. The method for controlling a slitter-scorer apparatus including steps of supplying a paperboard sheet along a feed line, and moving a slitter or a scorer in a vertical and/or a widthwise direction to a operative level where the surface of said paperboard sheet is processed thereby wherein: movement of said slitter and/or scorer is controlled such that said slitter and/or scorer either come into sliding contact with or is apart slightly from said surface of the paperboard sheet.

Abstract: A method for controlling a slitter-scorer apparatus in which a feed line for a paperboard sheet does not need to be stopped when order specification of cutting or scoring for the paperboard sheet has been changed, thereby reducing a setup time, is proposed.

Abstract: An apparatus for positioning a pair of sheet guides for guiding a conveyed sheet therebetween. A pair of operation cylinders moves the pair of sheet guides toward and away from each other so as to contact the sheet. A pair of preset blocks is supported onto a screw rod including portions having mutually opposite threads thereon so that they are engaged with the corresponding opposite threads so as to move toward or away from each other along the screw rod according to the direction in which the screw rod is rotated by a motor. Each preset block includes a radial engagement protrusion. A positioning cylinder is provided to each sheet guide. The positioning cylinder includes an actuated piston which is engaged with the radial engagement protrusion at its protruded position to position the corresponding sheet guide at the desired position.