| HUNKELER AG Patent applications |
| Patent application number | Title | Published |
|---|
| 20110281707 | Apparatus for longitudinally folding a moving material web twice - In order to form two longitudinal folds in a material web, there are two plow folding units which extend in the vertical direction and are arranged behind one another in the movement direction of the material web. Each of the plow folding units has two guide elements for the material web, which guide elements are arranged in the manner of a gable or saddle roof. The guide elements are arranged behind one another in the movement direction of the material web and enclose a folding angle between them. The folding angle between the guide elements of the second plow folding unit which is arranged downstream of the first plow folding unit has a magnitude of at least 100°, preferably of at least 140°. | 11-17-2011 |
| 20110277608 | Apparatus for the cross-perforation or cross-cutting of continuous material webs - In a cylindrical knife holder rotatable about its longitudinal axis, at least one groove, which is open towards the peripheral surface thereof, is present. The groove extends in the direction of the longitudinal axis of the knife holder. Inserted exchangeably in this groove is a perforating knife, the perforating edge of which protrudes over the peripheral surface of the knife holder. The perforating knife, which can be clamped in the groove by means of a releasable clamping device, is supported, at its end lying opposite the perforating edge, on a stop element disposed in the groove. The stop element rests on supporting elements distributed over the length of the groove, which are adjustable in directions running transversely to the longitudinal extent of the groove. The supporting elements define the once set radial position of the perforating knife. | 11-17-2011 |
| 20100051196 | Method and apparatus for producing stacks which form book blocks - In order to form stacks, of which each forms a book block, folded sheets are provided with an adhesive application or layer of adhesive before they are placed on one another. Said adhesive application is applied to the sheets adjacent to the folded edge of said sheets and extends in the direction of said folded edge which comes to lie in the spine of the book block. The adhesive can be applied as a continuous track or as a track which is interrupted multiple times, or else in a punctiform manner. The sheets are joined to one another in the stack by means of said adhesive application, with the result that they maintain their position within the stack during further transport of the stack. | 03-04-2010 |
| 20100015414 | Method of, and Apparatus for, Producing Multi-Leaf, Folded Printed Products, in Particular Periodicals and Brochures - In a material web which is printed in a digital printing station and moved in an advancement direction, a first material-web strand, which is formed by at least one printed material-web portion, is combined with a second material-web strand, which is formed by two printed material-web portions, by folding. The two material-web strands are connected to one another by an adhesive. Subproducts are then severed from the thus interconnected material-web strands by cross-cutting. These subproducts comprise a first printed sheet, severed from the first material-web strand, and a second printed sheet, connected to the first printed sheet and severed from the second material-web strand. The subproducts are then positioned one upon the other to form a stack, the subproducts being connected to one another by an adhesive in the region of the subsequent folding line. The stacked subproducts are then folded about a folding line to form an end product. | 01-21-2010 |
| 20090289406 | Method of, and apparatus for, processing a moving, printed material web - A method and apparatus of moving printed material web includes two processing arrangements arranged one above the other that are optional in operation. A material web is processed either in the upper, first processing arrangement or in the lower, second processing arrangement. In the processing section belonging to the first processing arrangement, the material web is folded about a line parallel to its advancement direction. In the processing section belonging to the second processing arrangement, the material web is separated, along a line parallel to its advancement direction, into two material-web strands, which are then positioned one above the other. The two processing sections having in common a pair of braking rollers and a pair of drawing rollers and also a longitudinal-cutter. | 11-26-2009 |
