Kolbus Gmbh & Co. Kg

Gerhard Lintelmann

Frank Tautz

Klaus Gerke

Leonid Ugorets

Günter Geldmeier

G&uuml;nter Geldmeier

Peter Gross

Jens E Beermann

The apparatus () includes a horizontally supported transport drum (), spaced-apart endless belts () that revolve around rollers (to) and are partially wrapped around the transport drum () such that an infeed () and an outlet () are formed and the cardboard cuttings () are pressed against and conveyed on the drum. Groove cutting tools () are arranged between the belts (). In order to allow a visual inspection of the cut grooves () from above during the operation of the apparatus, the outlet () is situated in the region of the upper vertex of the transport drum (). The delivery of the grooved cardboard cuttings () at the upper vertex of the transport drum () also results in an ergonomically advantageous removal height.

Apparatus for grooving cardboard cuttings

A device () for grooving cardboard cuttings () that features a driven, horizontally supported transport drum () and spaced-apart endless belts () that revolve around rollers (to) and effectively convey the cardboard cuttings () by pressing them against the drum shell. Groove cutting tools () are arranged between the belts () at a defined distance from the drum shell and make it possible to produce grooves with essentially triangular cross section in the cardboard cuttings (). In order to adjust the aperture angle of the grooves independently of one another, the adjustment of the angle within the respective groove cutting tool () is realized by curved guides (). The center of curvature () of the curved guide () lies in the region of the drum shell, as well as in the region of the blade tip () of the knife (), such that the aperture angle and the depth of the groove can be adjusted independently of one another.

Device for grooving cardboard cuttings

The invention pertains to a method and apparatus for producing cases with rounded corners. According to this method, the corner edge () that protrudes in the region of a rounded corner () is initially uprighted and turned over and subsequently pressed on the cover boards () together with the turning-over and pressing-on of the lateral edge () of an adjacent lateral border, in the same station (). The apparatus comprises at least one rounded corner tool () that is arranged in the same station () in the which the lateral edges () of opposed lateral borders that lie parallel to one another are uprighted, turned over, and pressed on the cover. The rounded corner tool () can be moved (b) toward the center of the case and out of the effective range of the lateral turn-in device () immediately before the turning-over and pressing-on movement (c, d) of the lateral turn-in device ().

Method and device for producing cases with rounded corners

Apparatus for manufacturing book-binding covers including a board-feeding-in system for feeding in cover boards and a back insert and a copy-feeding-in system for feeding in reference copies. A copy cylinder grips the reference copies, guides them past a glue-applying roll, and joins them to the cover boards and back insert. A tucking-in and pressing-on device folds the protruding reference-copy edges round the board edges and presses the book covers on. A feeding-out device delivers the book covers in stacks. The material flow of the book boards, back inserts, reference copies, and book covers is orientated in an ascending manner in relation to the horizontal surface on which the apparatus stands. The gain in height thus achieved compensates for the losses in height in the board magazine, in the tucking-in system, in the feeding-out device, and on the onward conveyers so that the laying-on of the cover boards takes place at virtually the same, ergonomic working height as the taking-off of the book covers.

Device for manufacturing book-binding covers

A device for storing and unrolling materials in web form in bookbinding machines having a roll-changing device for connecting a material which is to be unwound from a roll to the end of a material of the same kind unwound from another roll. The two rolls of material are placed, resting on their superficies, in an almost perpendicular shaft and are supported and guided on side walls of the shaft via their end faces. The roll of material to be stored rests on a stationary, almost horizontal floor. The unwinding roll of material rests on movable supporting elements which are set in motion, during the unrolling of the roll of material, when the latter is supported against supporting rollers forming one end face of the shaft.

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Rahden, Germany

Gerhard Lintelmann