Sheet feeder apparatus
AssigneesMabeg Maschinenbau GmbH, Nachfolger Hense & Pleines GmbH & Co.
InventorAdolf Schwebel
Life of this patent
Estimating the term…
Abstract
This sheet feeder apparatus is provided with pick-up heads for the sheets which heads are tiltable in at least one plane or in two planes automatically during the operation of the apparatus to properly align and/or stretch the sheets as they are picked-up from a stack and advanced for further handling. Thus, the pick-up heads are supported on support blocks and spring biased whereby the biasing forces tend to pull a sheet into proper alignment and/or to stretch a sheet without damaging the sheet.
Claims14
In a sheet feeder apparatus for transferring sheets in a transport direction, said feeder apparatus having a frame structure, sheet pick-up means including at least one pick-up head, means for adjustably securing said sheet pick-up means to said frame structure, and adjusting means operatively connected to said adjustable securing means, the improvement wherein said adjustable securing means comprise a support block, first means pivoting said support block to said frame structure for rotation about a first fixed horizontal axis extending transversely of the transport direction, further means pivoting said pick-up head intermediate its ends to said support block for rotation about a second axis extending in a plane normal to said first axis, said adjusting means comprising an adjusting rod having a threaded end and an opposite end, said opposite end being secured to an upper end of said pick-up head, guide means secured to said frame structure, said adjusting rod extending through said guide means with said threaded end extending out of said guide means, an adjusting nut on said threaded end of said adjusting rod, and spring means on said adjusting rod urging said upper end of said pick-up head away from said guide means and thus the adjusting nut against the guide means.
In a sheet feeder apparatus for transferring sheets in a transport direction, said sheet feeder apparatus having a frame structure, sheet pick-up means including first and second pick-up heads, first and second means for adjustably securing said first and second sheet pick-up means respectively to said frame structure, and first and second adjusting means operatively connected to said first and second adjustable securing means respectively;
- the improvement wherein said first adjustable means comprises a first support block, first means pivoting said first support block to said frame structure for rotation about a first fixed horizontal axis, means affixing said first pick-up head to said first support block, said first adjusting means comprising an adjusting rod having one end secured to said first pick-up head, and means for moving said adjusting rod to tilt said first pick-up head about said first axis in a first plane extending substantially vertically and in said transport direction, said second adjustable securing means comprising a second support block, means mounting said second support block on said frame structure, means pivoting said second pick-up head intermediate its ends to said second support block for rotation about a second axis, whereby said second pick-up head is tiltable in a second plane extending substantially vertically and perpendicularly to said transport direction, and said second adjusting means comprising control means operatively coupled to said second pick-up head for tilting said second pick-up head in said second plane.
Dependencies are inferred from the claim text.