Hunkeler Ag

Kurt Graber

Franz Hunkeler

Jakob Gerhard

Christian Schär

Lukas Wullschleger

Daniel Häfliger

Friedrich Faulhaber

A device for separating printed products out of a stack, the device including a feed device which defines a substantially horizontal plane, a first stop element which is arranged on a mounting support as well as a transfer device which defines a substantially horizontal plane, wherein the feed device moves the stack against the first stop element, wherein the transfer device accepts and transfers the bottommost printed product out of the stack from the feed device, wherein the feed device includes a vacuum conveyor, by means of which the bottom surface of the bottommost printed product is sucked up at least in portions, as well as to a corresponding method.

Separator for book blocks

The invention is directed to a method for producing printed products, in particular softcover books, with integrated cover, where method includes at least the steps: printing of paper web or individually supplied paper sheets, preferably by means of digital printing; single or multiple folding and cutting of paper web to form signatures or else single or multiple folding of paper sheets to form signatures; stacking of signatures to form signature stack with at least one top and one bottom signature; folding open top sheet of top signature or else bottom sheet of bottom signature and applying an adhesive layer in at least area of folded-open sheet, which is intended to include at least spine and/or an area of signature stack adjacent to spine; and turning over sheet folded open and provided with adhesive layer around spine of signature stack, so that cover for printed product is formed.

Method for producing printed products with integrated cover

An apparatus for folding sheets or sheet stacks, including at least two folding/transport rollers, transport device and knife, the transport device defining transport plane E for sheets or sheet stacks fed in transport direction R, knife being movable substantially perpendicularly to and through transport plane E, folding/transport rollers being arranged above transport plane E, oppositely on both sides of knife, axis of rotation A of folding/transport rollers extending substantially perpendicularly to transport plane E, and at least two folding/transport rollers each having, at their end facing toward transport plane E, rounded portion, such that narrowing gap S is formed between the at least two folding/transport rollers, into which gap sheets or sheet stacks can be introduced by means of knife so as to be folded there and at same time conveyed away in transport direction R, and to corresponding method.

Folding apparatus and method

In a first step, in a printed material web () moved in a feed direction, a first material web part () which is formed by a material web section ()is folded against the rest of the material web () that is formed from two material web portions ()).In the region of a connecting line () extending between neighbouring material web sections () the two material web parts (,) are connected to one another by a means of a bonding adhesive. In a subsequent step the material web () is folded again along a line () extending between two neighbouring material web sections. ()All material web sections () lie above one another. Subsequently, multi-page sub-products (), the pages () of which are connected to one another in the region of the spine () of the sub-product, are separated from the twice-folded material web (). Finally, the sub-products () are placed on top of one another to form a stack () and are connected to one another in the region of the spine () thereof by means of a bonding adhesive.

Method for producing printed products consisting of at least three sub-products

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.

Method and apparatus for producing stacks which form book blocks

A method of producing a newspaper having at least one section which is formed from at least one centrally folded printed sheet. The following steps are carried out according to the invention: a) individual sequentially printed sheets, which are intended for forming the individual sections of the newspaper, are fed continuously to a first collecting station, and sheets which are assigned to one common section are positioned one above the other (collected) to form a sheet stack; b) a finished sheet stack is conveyed away from the first collecting station, a first sheet of a further section being fed to the first collecting station while the preceding sheet stack is being conveyed away from the first collecting station or once it has been conveyed away therefrom; c) the finished sheet stack is folded in order to produce a section; d) the section is deposited in a second collecting station such that it comes to rest on, if appropriate, an already deposited section; e) the steps a) to d) are repeated, if appropriate, until all the sections of the newspaper have been completed and positioned one upon the other to form a section stack.

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Brittnau, Switzerland

Kurt Graber