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AssigneeSchuler Pressen GmbH
InventorsCARSTEN BRECHLING, WOLFGANG MUEHLHAEUSER, MARKUS WEBER
Estimating the term…
A blank holder device for a drawing device, for example a drawing press. The blank holder device has a blank holder sleeve, which, in a predetermined position exerts a blank holder force on a blank part. The sleeve is fastened to a head part and is stationary relative to it. To move the blank holder sleeve in a stroke direction, the head part is borne, through a head part guiding arrangement, at least at two front guide locations, to undergo translational motion in a stroke direction, and it is braced to be essentially stationary in all directions at right angles to the stroke direction. On the side opposite the blank holder sleeve, the head part is connected with at least one drive element of the blank holder drive device and that can, together with the head part, be moved by a motor and a coupling arrangement in the stroke direction.
A blank holder device (22) for a drawing device (10) for producing hollow cylindrical bodies, with a blank holder sleeve (43) that is fastened to a head part (23), with a blank holder drive device (24) that has at least one drive element (25) that is translation-movable in a stroke direction (H) at which the head part (23) is arranged, the blank holder drive device (24) being adapted to move the blank holder sleeve (43) in a stroke direction (H) between an initial position (I) and a blank holder position (II), the blank holder sleeve (43) having a sleeve end face (44) that, in the blank holder position (II), presses a blank part (14) with a blank holder force (F) against a clamping surface (62), with a head part guiding arrangement (50) that is adapted to translation-movably bear the head part (23) in the stroke direction (H) at least at two front guide locations (51), and to support it against movements in other degrees of freedom.
Dependencies are inferred from the claim text.