Cover bearing system
AssigneeBobst Bielefeld GmbH
InventorsThomas BOJE, Lorenz LANDENBERGER
Life of this patent
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Abstract
The invention is about a valve system to grip a sleeve over a mandrel in a press, in particular on how the gripper is brought toward and away from the mandrel and sleeve assembly. The gripper is disengaged from the sleeve, following first a straight path and then a helicoidal path, thanks to an ad-hoc slot machined on an axle. This allows to disengage the gripper and set it out of the way for handling the sleeve, with a single motor and a single instruction.
Claims9
Cover bearing system for one end of a sleeve (12) that is supported in a replaceable manner in a machine frame (10), with a bearing block (20) that is held on the machine frame and forms a removal opening (30) for the sleeve (12), a cover head (22) that forms a bearing (24) for the end of the sleeve (12) and is displaceable in axial direction of the sleeve and is held in a swiveling manner on the bearing block (20) about a swivel axis (A) parallel to the axis of the sleeve (12) and offset from this axis, and an actuator system for moving the cover head, characterised in that the actuator system has an actuator (36) for the axial movement of the cover head (22), that the bearing block (20) and the cover head (22) are engaged via a hollow cylinder (32) and a cylinder body (34) displaceable therein, of which one has a guiding contour (42) and the other has a follower body (44) guided along the guiding contour, and that the guiding contour (42) extends in a first section (42a) linearly in the axial direction and in a second section (42b) helically about the axis of the cylinder body (34).
Dependencies are inferred from the claim text.