Abstract: A method for monitoring and changing the position of at least one component, more particularly a running bar, slidingly guided within a press frame between abutments of the press frame is disclosed. A central alignment of the component within the press frame is continuously measured and the alignment of the component within the press frame is corrected as a function of the acquired measurement result by preferably automatically adjustable guide elements of the sliding guides of the press. The central alignment of the slidingly guided component within the press frame is measured by the sensing of the location of at least one, preferably two, reference points of the slidingly guided component preferably in a plane extending perpendicularly to the longitudinal center axis of the press. A press having automatically adjustable guide elements and means for controlling the guide elements as a function of the measured position of the component.

Abstract: An adjusting system for adjusting the guide play of a sliding guide for movable parts of a press has at least one guide element (1), which comprises at least one sliding block (9), which can be moved transversely to the direction of movement of the part of the press to be guided, at least one adjusting wedge (5) and at least one guide wedge (8), the movement of which adjusting wedge and guide wedge relative to each other causes the sliding block (9) to be shifted perpendicularly to the direction of movement of the movable part. The adjusting system is characterized in that the adjusting wedge (5) is continuously adjustable by means of at least one spindle drive. The disclosure further relates to a method for adjusting the position of at least one sliding block of its sliding guide on a press having such an adjusting system.

Abstract: A crosshead (1) for use as an upper and/or lower beam (50, 60) in a press (100), in particular an open-die forging press or a closed-die forging press, comprises an upper chord (2) and a lower chord (5) connected to the upper chord (2) via a first and a second lateral upright (3, 4). The first lateral upright (3) is arranged in the region of a first distal end (6) and the second lateral upright (4) is arranged in the region of a second distal end (7) of the crosshead (1). The crosshead (1) has a truss support structure (8) between the two lateral uprights (3, 4) by which the upper chord (2) and the lower chord (5) are additionally connected to one another.

Abstract: A plate stretcher includes two clamping heads that are directed at one another and can be displaced relative to one another, to apply a clamping force directed along a stretching direction, by way of a pressure element that absorbs the clamping force, and at least one transverse straightener that acts perpendicularly to the clamping force. A method for stretching a plate in a plate stretcher transversely straightens the plate during stretching of the plate.

Abstract: A rolling apparatus has a frame and first and second roller mounted in the frame, rotatable about respective first and second axes, forming a nip through which a workpiece passes in a direction of travel, and each having a radially outwardly directed rolling surface that bears radially on the workpiece. The first roller has an axially directed first guide face that bears axially on the workpiece in the nip. A positioning assembly axially positions the first roller relative to the second roller. A shaping die is positioned axially downstream of the nip in the direction and receives the workpiece after it passes through the nip.

Abstract: The invention relates to a four-die press tool (1), comprising a lower die assembly (4) and an upper die assembly (6) displaceable relative thereto, comprising four rams (10, 11, 12, 13) spaced apart and supported on the lower die assembly (4) or the upper die assembly (6) and carrying forging dies (29), and a ring (20) on which are mounted the four rams (10, 11, 12, 13) concentrically around the central press axis (28) of the four-die press tool (1) in such a way that they can be displaced relative to the central press axis (28) whenever the upper die assembly (6) is moved relative to the lower die assembly (4), wherein protecting means (35) are mounted on the ring (20) to secure a workpiece in a centered position on a central predetermined position of the workpiece relative to the central press axis (28) independently of a workpiece manipulator.

Abstract: A plate stretcher includes two clamping heads that are directed at one another and can be displaced relative to one another, to apply a clamping force directed along a stretching direction, by way of a pressure element that absorbs the clamping force, and at least one transverse straightener that acts perpendicularly to the clamping force. A method for stretching a plate in a plate stretcher transversely straightens the plate during stretching of the plate.

Abstract: The invention relates to a four-die press tool (1), comprising a lower die assembly (4) and an upper die assembly (6) displaceable relative thereto, comprising four rams (10, 11, 12, 13) spaced apart and supported on the lower die assembly (4) or the upper die assembly (6) and carrying forging dies (29), and a ring (20) on which are mounted the four rams (10, 11, 12, 13) concentrically around the central press axis (28) of the four-die press tool (1) in such a way that they can be displaced relative to the central press axis (28) whenever the upper die assembly (6) is moved relative to the lower die assembly (4), wherein protecting means (35) are mounted on the ring (20) to secure a workpiece in a centered position on a central predetermined position of the workpiece relative to the central press axis (28) independently of a workpiece manipulator.