Winkler & Duennebier Maschinenfabrik Und Eisengiesserei Gmbh & Co Kg

Winkler & Duennebier Maschinenfabrik Und Eisengieserei Gmbh & Co. Kg

Guenter Ehlscheid

Gilbert Hauschild

Folded articles, such as paper napkins, handkerchiefs, and the like are puced of an intially continuous web or sheet material which is moved into a folding machine in a feed advance direction at a controllable feed-in speed. The sheet material may be folded once lengthwise around the feed advance direction before it is cut by a cutter operating at equal time intervals. The cut sheet material sections are then accelerated and after the acceleration they are folded at least once crosswise around a direction perpendicularly to the feed advance direction, whereby the cut sections travel at a constant speed during the crosswise folding and subsequent stacking. The feed-in speed is kept constant as long as articles of a given size are being produced. When the article size is to be changed, the feed-in speed is accordingly changed. The folding machine is equipped with a speed controllable sheet feeding device upstream of the cutter and with a sheet accelerating device downstream of the cutter as viewed in the feed advance direction.

Method and apparatus for producing folded articles

A proper number of flexible work pieces such as napkins, handkerchiefs and he like are deposited in a proper position or positions for providing packages each of which contains a freely selectable number of pieces. For this purpose the work pieces travel through at least one branching station and from there alternately into two depositors or stacking stations comprising several compartments. The depositors then deposit the work pieces on a stacking table from which the stacks are removed onto a conveyor belt for continuing the conveying, for example into a packaging machine. The branching station includes three suction drums in which the suction is controlled for alternately distributing work pieces into different directions to different stackers. Air permeable conveyor belts run around the suction drums.

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Neuwied, Germany

Guenter Ehlscheid