Abstract: In a gripping equipment for sheet-processing machines wherein sheets are engaged by grippers moved along by driven chains and are forwarded intermittently from one station to the next, wherein the grippers are carried by a gripper shaft and are supported at their ends for swivelling movement about an axis parallel to the longitudinal axis of the gripping equipment, the improvement wherein the gripping equipment comprises a carriage having fixedly-supported rollers at the one end and resiliently-supported rollers at the other end for rolling on guideways at the stations to effect guidance transverse to the course direction of the carriage. Each of the leading ends of the gripper carriage is supported on one chain link for rotation about an axis parallel to the gripper shaft and counter to spring resilience. The carriage is guided by a roller and a roller guideway independent of the chain track.

Abstract: Apparatus is provided for breaking parts away from workpieces which includes a first set of work-engaging fingers arranged on one side of the workpiece and a second set of work-engaging fingers arranged on the other side of the workpiece. Oppositely-disposed first and second support structures for the first and second sets of work-engaging fingers are provided. Each of the support structures include a guide rail having guiding grooves formed therein, first and second clamping means each mounted to engage and move relative to the guiding grooves so that the first and second clamping means can be moved passed each other without interference, and first and second holding means are provided which are movably connected to the first and second clamping means, respectively, for supporting each set of work-engaging fingers.

Abstract: A process and apparatus for cutting, creasing and/or embossing sheets of cardboard, paper of similar material is disclosed. The apparatus includes a tool plate or die having steps therein in the form of parting steps and ribs and/or grooves to form creases. A resilient elastic member is employed to press the cardboard web down against the various steps in the tool plate. The size and configuration of the steps and the tool plate causes severing or cutting of the cardboard or creasing or embossing. Apparatus for use with rotational as well as planar or reciprocating blanking machines and a variety of different tool plate constructions are disclosed. The process includes resilient urging of the sheet against the die piece with the elastic member causing deformation of the sheet to conform to the tool plate.

Abstract: In a cutting apparatus or punch press for repeatedly cutting or punching a work shape from a continuously travelling web or sheet of paper, cardboard or similar material, the cutting dies or punch tools are mounted for reciprocation longitudinally in the direction of feed of the web or sheet on press platens that open and close and sustain the punching forces but do not themselves move in the direction of feed. By means of a drive mechanism operating in synchronism with the opening and closing movements of the press platens the punch tools are accelerated from rest in the direction of feed to attain the speed of the work web or sheet at the instant of punching and then are decelerated to rest and moved in reverse back to the initial position of the cycle. The stroke of the reciprocation may be adjusted to suit different lengths of the work shape to be punched.

Abstract: An apparatus for breaking out or separating scrap pieces from a continuously moving sheet of material, such as paper or cardboard, having a die-cut or punched pattern therein is disclosed. The apparatus includes a pair of counter-rotating cylinder elements between which the sheet moves. One of such cylindrical elements carries at least one tool assembly having a radially displaceable tool element. The cylindrical elements are further mounted at a distance from each other less than the combined radii thereof, including the tool element, and preferably with the tool carrying cylindrical element displaced toward the direction of advancement of the sheet during separation. The radially displaceable tool element cooperates with the remaining cylindrical element to grip scrap pieces on both sides thereof and effect a gripped displacement laterally of the remainder of the sheet to separate the scrap pieces.

Abstract: An apparatus for breaking out, stripping or separating scrap pieces from a continuously moving sheet of material such as paper or cardboard having a die-cut or punched pattern therein is disclosed. The apparatus includes a pair of counter-rotating cylinder elements between which the sheet moves. At least one of such cylindrical elements, and preferably both, carry tool assemblies which are cam actuated and guided to cause the tool assemblies to move radially of the cylinders and grippingly engage or grasp even small scrap pieces. The tool assemblies further move such pieces, while firmly gripped, in a direction, usually downwardly, causing separation from the remainder of the sheet of material. The cylindrical elements and tool assemblies are formed for selective adjustment of the location of the tool assemblies over the width of the sheet and around the periphery of the cylinders.