Mathias Bauerle Gmbh

Joachim Kurtz

Werner Lehmann

Manfred Fuss

Werner King

The paper folding machine is provided with a roller pair (T1,T2) which forms an intake zone (E) and determines the velocity of feed of the material to be folded, and with at least one pair of folding rollers (W1,W2,W3), which forms a folding zone (F1) and is parallel to the former pair of rollers. A stopless feed limiting device, which determines the actual folding length and can be actuated individually for each folding operation by a microprocessor and/or an electronic control circuit as a function of a feed measuring unit, is arranged in a material feed path (4) which extends past the folding zone (F1,F2). In order to reach narrow folding length tolerances even at high working speeds, on the side of the maerial feed path (4) opposite the folding zone (F1,F2), the feed limiting device is provided with a knife-like or bar-like deflecting member (6), which extends over the width of the material feed path and can be moved toward the folding zone (F1,F2) at a velocity corresponding to the velocity of feed of the material to be folded, while the material to be folded is deflected to form a fold.

Sheet deflecting device for a paper folding machine

A device for folding successively fed sheets which have a plurality of transversely spaced dried adhesive areas thereon includes a plurality of folding rolls arranged in a sheet feedback between which the sheets are fed and which have at least one pocket into which the sheets are fed after they have been folded at least once as they are passed between folding rolls. The sheet wetting device comprises a plurality of moveable belts which are arranged over the sheets as they are fed through the sheet feed path, they are guided and moved through a path in which they overlie each sheet in succession. Construction includes means for holding at least some of the belts into contact with the sheets as they are moved in order to wet the sheets in selected areas in it includes means for passing the belts into association with a belt wetting device or reservoir so that they wet the dry areas which they contact. The construction advantageously includes means for shifting at least some of the belts into contact with the sheets only at selected areas in which the belts are moved into association with the sheets. Arrangement for shifting the sheets or the belts so that they move into contact with each other only in selected areas includes a electro-magnetically operated device to move these elements relatively.

Chief folding machine with eye adhesive moistener

In a sheet feed bench with two parallel sheet feed rails that are adjustable relative to one another and with each having blowing jets on their surfaces facing one another directly above the level of the bench, connected to a common source of compressed air, the sheet feed rails resting on the bench surface are provided with groove-like or notch-like enlargements at the level of the blowing jets. Each of these extend over the entire length of the sheet feeder rails. These enlargements make it possible to position the inner surfaces of the sheet feeder rails so closely and tightly against the longitudinal edges of the stack of sheets that only small amounts of compressed air can escape upward. The formation of an air cushion is improved by this in such a way that the stack height can be more than double without adversely affecting the single-sheet separation.

Growing community of inventors

Monchweiler, Germany

Joachim Kurtz