L. Schuler Gmbh

Horst Pfisterer

Alfred Bareis

Ewald Bergmann

Karl Dangelmaier

Wilfried Abt

Robert Czapka

Rudolf Augst

A tensioning assembly having a cylindrical exterior circumferential surface of a drivable shaft section and an interior cone ring having a cylindrical interior circumferential surface arranged on the cylindrical exterior circumferential surface, the interior cone ring having a conical exterior circumferential surface. An exterior cone ring is arranged on the conical exterior circumferential surface of the interior cone ring, the exterior cone ring having tensioning screws which are coaxial with respect to the drivable shaft section and by which the interior and exterior cone rings are tensioned with one another and the interior cone ring is tensioned with the drivable shaft section. To provide a tensioning assembly that is easily mounted and relaxed without loosening of the tensioning screws, a driven sleeve is arranged on the shaft section and is coupled to a driven element, the driven sleeve having an axial length that is larger than an axial length of the interior and exterior cone rings by the axial length of the driven element. Grooves are provided in at least one of the cylindrical circumferential surfaces, the grooves admitting a liquid pressure medium to the pairing of the cylindrical interior and exterior circumferential surfaces. The admission of pressure medium to the pairing of the cylindrical interior and exterior surfaces acts as a hydraulic release system for the tensioning between the shaft section and the driven sleeve.

Tensioning assembly

For reducing the refitting time of high-speed presses as a consequence of the adaptation of the distances of stacking spindle and support members to the dimensions of the cutting tool to be interchanged and of the blank, the stacking spindle and the support members are arranged on interchanging rails adapted to be displaced out of the press table. Upon reaching the required height of the stack, the spindle tip adapted to be separated from the stacking spindle is held by a retaining device consisting of adjusting means and slide member so that the stack can be lowered to the discharge conveyor plane.

Installation for correctly stacking blanks

Apparatus for the conveyance of components punched out from a strip of material with the formation of a punched grid out of the working area of a press includes a feeding mechanism for conveying the strip of material into the working area of the press. At least one controllable ejector is arranged in an upper die for ejecting the punched-out components during the return stroke of the upper die onto the strip of material itself which is the conveyor. Lugs are punched into a remaining portion of the strip of material to be processed, behind the punched-out component, these lugs serving to retain the punched-out and dropped-off components on the strip of material.

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Go/ ppingen, Germany

Horst Pfisterer