Man Roland Druckmaschinen Ag

Friedrich Michaelis

Klaus-Ulrich Lange

Eckhard Schneider

Hermann Lenz

A gripper cylinder for a folding apparatus, the gripper cylinder having a cylinder shaft on which a cylinder body is mounted and at least two gripper stations mounted to the cylinder body. The gripper stations include grippers and corresponding gripper bases. An adjustment mechanism is provided for adjusting the distance between each gripper and its corresponding gripper base to correspond to the thickness of a product to be gripped. The gripper mechanism is operative to simultaneously adjust all of the gripper stations.

Gripper cylinder in a folding apparatus

An apparatus for the adjustment of folding jaws, in which the cylinder body supports the noncontrolled folding jaw and, for the purpose of its adjustment, is supported on the cylinder shaft so as to be swivelable. The cylinder body further contains a swivelable support in which the controlled folding jaw is supported eccentrically to the swivel axis of the support. A gear unit acts on the support and swivels it so that the controlled folding jaw is moved in the opposite direction of the noncontrolled folding jaw.

Apparatus for adjusting of the folding jaws of a folding jaw cylinder

To move folding jaws (4, 5) in a scissor-like or pincer-like movement symmetrical with respect to a center line (CL) and to permit adjustment of the gap or opening of the jaws, for acceptance of folded substrates of different thicknesses, the jaws are coupled together by a rotation reversal arrangement (14, 114, 112, 314) so that rotation of one of the carrier bodies (6) will be transferred as an equal and opposite movement to the other (7) of the carrier bodies. An axial position adjustment spindle (25, 125, 325), controllable by a hand wheel (29) or servo motor (30), changes the axial position of gears rotating or rotating with a shaft (2, 202, 402) of a folding jaw cylinder (1, 201, 401), at least some of the gears or gear pairs having inclined teeth, to thereby transfer a positioning movement into a relative rotary shift of the respectively rotating gear with respect to the gear driving the shaft, thereby causing rocking or tilting of the folding jaw carriers (6, 7).

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Augsburg, Germany

Friedrich Michaelis