Winding-on device for paper sheets and lengths of textile
OwnerWilhelm Nunnerich, Peter Schmidtinventors
Life of this patent
Estimating the term…
Abstract
A device for winding-on sheets of material (3), particularly sheets of paper and lengths of textile, includes a winding-on device and a feed unit (6,8) coupled with the winding-on spindle (4) of the winding-on device through a belt drive (21,22,26), which unit discontinuously feeds the material sheet (3) to the winding-on device. The belt (22) of the belt drive (21,22,26) is elastically extensible in its lengthwise direction, while the winding-on spindle (4) is joined with one part (15) of a locking catch (15,13) the other part (13) of which is intermittently movable into its released position by means of a driver arrangement (9) joined with the feed unit (6,8). The device is particularly suitable for winding-on paper sheets in print units.
Claims7
Apparatus for winding-up of a continuous sheet material such as paper on a take-up roll comprising:
- a supply of sheet material;
- a take-up roll upon which the sheet material is to be discontinuously wound in relatively large increments;
- a drive means comprising a rotatable drive element which rotates incrementally and discontinuously in relatively small increments;
- an axially elastically stretchable belt connecting the drive element to the take-up roll to transfer rotational motion from the drive element to the take-up roll when the take-up roll rotates freely but to store energy in the form of elastic tension when the take-up roll is locked against rotation;
- and
- locking means interconnecting the drive element and the take-up roll to normally lock the take-up roll against rotation but to release the take-up roll after the drive element has rotated a predetermined number of said small increments.
Dependencies are inferred from the claim text.