EP0444410B1 - Procédé d'endossage mécanique de blocs de livres et dispositif de mise en oeuvre du procédé - Google Patents

Procédé d'endossage mécanique de blocs de livres et dispositif de mise en oeuvre du procédé Download PDF

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Publication number
EP0444410B1
EP0444410B1 EP91100558A EP91100558A EP0444410B1 EP 0444410 B1 EP0444410 B1 EP 0444410B1 EP 91100558 A EP91100558 A EP 91100558A EP 91100558 A EP91100558 A EP 91100558A EP 0444410 B1 EP0444410 B1 EP 0444410B1
Authority
EP
European Patent Office
Prior art keywords
backing
movement
book block
block back
book
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91100558A
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German (de)
English (en)
Other versions
EP0444410A1 (fr
Inventor
Horst Rathert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kolbus GmbH and Co KG
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Kolbus GmbH and Co KG
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Filing date
Publication date
Application filed by Kolbus GmbH and Co KG filed Critical Kolbus GmbH and Co KG
Publication of EP0444410A1 publication Critical patent/EP0444410A1/fr
Application granted granted Critical
Publication of EP0444410B1 publication Critical patent/EP0444410B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42C—BOOKBINDING
    • B42C5/00—Preparing the edges or backs of leaves or signatures for binding
    • B42C5/02—Preparing the edges or backs of leaves or signatures for binding by rounding or backing

Definitions

  • the invention relates to a method for the mechanical pressing of clamped, rounded book blocks by means of a pressing element acting on the back of the book block under a defined pressing force, and it also relates to a device for carrying out the method.
  • the rounded book block is given the desired back shape corresponding to the type of cover, which is determined by a fold provided in the area of the book block near the back, which can either be designed as a deep fold or as an oblique fold.
  • book rounding and pressing machines are used in industrial book production, in which the pressing process following the book spine rounding process is carried out by a shaped piece which moves back and forth across the entire back width, whereby the folded printed sheets are applied by the pressure and friction Middle of the book block spine after both Pages are turned over, and at an increasing angle to the outside. This gives the book block its mushroom-like back shape as well as its back stabilization.
  • a book-rounding and pressing machine with a reciprocating molding acting on the back of the book block is shown and described, for example, in DE-OS 15 36 507.
  • the traditional round shape of the spine has a multitude of radii.
  • shaped pieces adapted to the respective back radius must be used during the pressing process.
  • this fact requires long changeover times, in particular because the shaped pieces in the pressing station are difficult to access for removal and reinstallation.
  • a method for the mechanical pressing of clamped, rounded book blocks by means of two pressing elements acting on the book block spine under a defined pressing force, which after pressing is carried out are moved back to their starting position on a path away from the book block spine and a device for carrying out the method are in the document US-A-1959656.
  • the object of the invention is to provide a method of the type mentioned and a device for the mechanical pressing of book blocks, which enable a substantial increase in performance and quality improvement of the book blocks. Furthermore, the replacement of the fittings is to be avoided.
  • the method according to the invention provides that one half of the book block spine is pressed by two pressing elements simultaneously from the center of the From the opposite side of the book block, perform a rolling motion on the back of the book block to compress the printed sheets in the middle of the back of the book block and a tangential sliding friction movement on the back of the book block to fold the printed sheets in the side areas of the back of the book block will.
  • the pressing elements perform a tangential sliding friction movement and a superimposed rolling movement counter to the sliding friction movement, such that the sliding friction movement compensates in the area of the center of the book block spine and increases outwards in the side areas of the book block spine by progressively reducing the superimposed rolling movement .
  • the device for carrying out the method is characterized in that two parallel pressing bars in the supporting frame can be moved by means of linear guides oriented at right angles to these and the supporting frames can be pivoted in a radius by means of curved guides, the linear movement and the pivoting movement being matched to one another in such a way that the pressing bars are aligned in the radius to the outside and at the same time straight in the support frame move inside, and that the pressure bars can be brought from their operative position into a position away from the book block spine via an actuating device.
  • the working speed can be doubled by simultaneously pressing off both halves of the book block.
  • the press-off movement can be continuously adjusted to the different back shapes, so that the previous exchange of the press-off elements is no longer necessary, which significantly shortens the set-up time.
  • the so-called pressing of the book blocks 1 is carried out with two parallel pressure bars 2, each of which acts on one half of the back of a book block 1 under a defined pressing pressure, by making a tangential sliding friction movement from the center of the block in opposite directions for folding the printing sheets outwards lying areas of the book block spine and perform a tangential rolling movement opposite to the sliding friction movement in order to generate a compression pressure.
  • the book block 1 is held between clamps 3.
  • the pressing bar 2 moves sideways from the position according to FIG. 1b into the positions illustrated in FIGS. 1c-e, the tangential rolling motion being controlled in such a way that the compensation resulting therefrom is progressively reduced and the printed sheets are folded over in the outer areas of the book block spine by an increasingly reinforced friction component.
  • the pressure bar 2 shown in dash-dotted lines in FIGS. 1c-e each represents the positions again without compensation by counter-rolling.
  • the press-off bar 2 returns to its starting position after a press-off operation has been carried out on a path that is remote from the block back.
  • the pressure strips 2 work continuously, preferably a double pressure operation is provided with a view to gentle treatment of the spine of the book block.
  • the sliding friction movement of the two pressing strips 2 can be varied, on the one hand by applying differently strong frictional forces through more or less counteracting tangential rolling movement and on the other hand by controlling this tangential movement at any point on the book block spine.
  • the two pressing bars 2, which simultaneously move continuously in opposite directions, have cantilevers 4 which extend transversely to the longitudinal direction and on which rectilinear roller tracks 4a are located.
  • the booms 4 are on their roller tracks 4a in assigned guideways 5a in transverse bearing 5, which are located on a longitudinally extending support frame 6.
  • the arms 4 are provided on their underside with a toothing 4b which engage with toothed segments 7 which are rotatably mounted in the transverse bearing 5 via a common drive shaft 9.
  • the toothed segments 7 receive their rotary movement via control levers 10 seated on the drive shaft 9 with follower rollers 11 starting from curves 8 and thus control the pressure bars 2 in the linear guideways 5a of the transverse bearings 5 back and forth.
  • the rolling movement of the pressing elements 2, which is superimposed on the tangential sliding friction movement, can be achieved by means of differently configured curves 8.
  • the tangential sliding friction movement of the two pressure strips 2 on the rounded spine of the book block 1 takes place from a radius-running common roller conveyor 15 mounted in the side part 13 with associated individual web guide segments 14 which can be moved on the roller conveyors 15 and have a toothing 14a on their underside.
  • a holder 16 serves as the connecting element between the web guide segment 14 and the support frame 6, which is rigidly attached to the web guide segment 14 on the one hand and releasably secured in the support frame 6 via a clamping screw 17 and an elongated hole 18.
  • the two pressing strips 2 are moved downwards and backwards to the center of the block and on a path lying away from the block spine and upwards to their starting position, in which they lie close together.
  • the entire pressing device is moved up and down via eccentric 22 from a drive shaft 23 in time coordination with the movement of the pressing bars 2 in the direction of the arrow.
  • the back of the book block is preferably pressed twice, with the aim of gentle treatment of the book block 1.
  • the entire pressing device executes a vertical infeed movement by adjusting the eccentrics 22, followed by the second movement of the pressing bars 2 and thus the final pressing of the back.
  • pressing twice to further improve back stabilization is useful.
  • the side parts 13 with the toothed segments 21, the web guide segments 14 and the roller tracks 15 can be adjusted in height relative to the support frame 6 after loosening the clamping screws 17 in the elongated holes 18, as a result of which the pivoting radius of the pressure bars 2 changes .
  • an adjusting spindle 25 is provided which engages in a threaded block 26 screwed to the side part 24 and movable in the base frame 27 in guideways 27a.
  • the book block pressing device according to the invention can be provided as a forward and return station, which can be moved synchronously with a continuously driven staple transport system, whereby a further increase in performance can be achieved.
  • the device is received by a base plate 28 with vertical and horizontal rollers 29 which run on tracks 30 of a machine frame 31.
  • a drive lever 32 which is articulated on a chain 34 driven by the main drive and runs around deflection sprockets 33 and moves the base plate 28 back and forth with the book block pressing device when the chain 34 rotates.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Claims (12)

  1. Procédé pour l'endossage mécanique de corps de livres arrondis et maintenus serrés au moyen de deux éléments d'endossage qui exercent une pression définie sur les dos de corps de livres et qui, une fois l'endossage effectué, sont ramenés dans leur position de départ sur une trajectoire éloignée du dos du corps de livre, caractérisé par le fait que l'on endosse chaque fois une moitié du dos du corps de livre en faisant rouler deux éléments d'endossage (2) simultanément sur le dos du corps de livre, à partir du milieu du dos de corps de livre dans des directions opposées pour refouler les feuilles imprimées dans la zone du milieu du dos de corps de livre et en leur faisant effectuer un déplacement tangentiel de glissement et frottement sur le dos de corps de livre pour plier les feuilles imprimées dans les zones latérales dudit dos de corps de livre.
  2. Procédé selon la revendication 1, caractérisé par le fait que les éléments d'endossage (2) effectuent un déplacement tangentiel de glissement et frottement et un mouvement de roulement superposé qui est exécuté dans le sens inverse du déplacement de glissement et frottement de telle manière que le déplacement de glissement et frottement soit compensé dans la zone du milieu du dos du corps de livre et augmente dans les zones latérales du dos du corps de livre vers l'extérieur tandis que le mouvement de roulement superposé est progressivement réduit.
  3. Procédé selon la revendication 1 et 2, caractérisé par le fait que le mouvement de roulement des éléments d'endossage (2) qui est superposé au déplacement tangentiel de glissement et frottement est déclenché en n'importe quel endroit du dos du corps de livre.
  4. Procédé selon la revendication 1 à 3, caractérisé par le fait que l'endossage du dos du corps de livre est réalisé par un mouvement de roulement et un déplacement tangentiel de glissement et de frottement des éléments d'endossage (2) répété plusieurs fois, de préférence deux fois, la pression étant augmentée par paliers.
  5. Dispositif pour l'exécution du procédé selon l'une des revendications 1 à 4 avec des fers d'endossage (2) qui peuvent être amenés par un dispositif d'actionnement (22, 23) de leur position d'action dans une position écartée du dos du corps de livre, caractérisé par le fait que deux fers d'endossage (2) parallèles peuvent être déplacés dans des cadres porteurs (6) au moyen de dispositifs de guidage rectiligne (4, 4a, 5, 5a) formant un angle droit avec lesdits cadres et les cadres porteurs (6) peuvent pivoter suivant un rayon au moyen de dispositifs de guidage arqués (14, 15), le mouvement rectiligne et le mouvement de pivotement étant synchronisés de telle manière que les fers d'endossage (2) se déplacent suivant le rayon vers l'extérieur et simultanément en ligne droite dans les cadres porteurs (6) vers l'intérieur.
  6. Dispositif selon la revendication 5, caractérisé par le fait que les dispositifs de guidage rectiligne sont formés par des ensembles rectilignes de galets (4a) disposés sur des consoles (4) des fers d'endossage (2) et des chemins de roulement (5a) associés dans des traverses (5) des cadres porteurs (6) et que les consoles (4) sont munies d'une denture (4b) qui engrène avec des segments dentés d'entraînement (7).
  7. Dispositif selon la revendication 5, caractérisé par le fait que les dispositifs de guidage arqués sont formés par des ensembles de galets (15) dans une partie latérale (13) et par des segments de chemins de roulement (14) pourvus d'une denture (14a) qui engrène avec des segments dentés d'entraînement (21) et que les segments de chemins de roulement (14) sont reliés aux cadres porteurs (6).
  8. Dispositif selon les revendications 5 à 7, caractérisé par le fait que la distance entre le dispositif de guidage arqué (14, 15) et le bord supérieur des fers d'endossage (2) peut être modifiée.
  9. Dispositif selon les revendications 7 et 8, caractérisé par le fait que les segments de chemins de roulement (14) peuvent être réglés en hauteur par rapport aux cadres porteurs (6) par l'intermédiaire d'un assemblage démontable (16 à 18).
  10. Dispositif selon les revendications 5 à 9, caractérisé par un dispositif élévateur (22, 23) destiné à abaisser et à soulever le dispositif d'endossage de manière synchronisée avec le déplacement des fers d'endossage (2).
  11. Dispositif selon la revendication 10, caractérisé par le fait que les fers d'endossage (2) peuvent être réglés en hauteur par l'intermédiaire du dispositif élévateur (22, 23).
  12. Dispositif selon les revendications 5 à 11, caractérisé par le fait que le dispositif peut être avancé et reculé par l'intermédiaire d'un dispositif (28-34) de manière synchrone avec une pince (3) se déplaçant en continu.
EP91100558A 1990-02-26 1991-01-18 Procédé d'endossage mécanique de blocs de livres et dispositif de mise en oeuvre du procédé Expired - Lifetime EP0444410B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4005949 1990-02-26
DE4005949A DE4005949A1 (de) 1990-02-26 1990-02-26 Verfahren zum maschinellen abpressen von buchblocks und vorrichtung zur durchfuehrung des verfahrens

Publications (2)

Publication Number Publication Date
EP0444410A1 EP0444410A1 (fr) 1991-09-04
EP0444410B1 true EP0444410B1 (fr) 1994-04-13

Family

ID=6400951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91100558A Expired - Lifetime EP0444410B1 (fr) 1990-02-26 1991-01-18 Procédé d'endossage mécanique de blocs de livres et dispositif de mise en oeuvre du procédé

Country Status (4)

Country Link
US (1) US5104275A (fr)
EP (1) EP0444410B1 (fr)
JP (1) JPH04216098A (fr)
DE (2) DE4005949A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4330719A1 (de) * 1993-03-18 1994-09-22 Kolbus Gmbh & Co Kg Vorrichtung zum Rückenrunden von Buchblocks
EP0615863B1 (fr) * 1993-03-18 1998-08-05 Kolbus GmbH & Co. KG Dispositif pour arrondir les dos de blocs de livres
US5441375A (en) * 1993-12-03 1995-08-15 Am International Inc. Cover breaker assembly and method
DE4409319A1 (de) * 1994-03-18 1995-09-21 Kolbus Gmbh & Co Kg Vorrichtung zum Abpressen von Buchblocks
DE19907682A1 (de) * 1999-02-23 2000-08-24 Horst Rathert Verfahren und Vorrichtung zum Runden und Abpressen von Buchrücken insbesondere für Kleinauflagen
ITMI20010137A1 (it) * 2000-02-12 2002-07-25 Kolbus Gmbh & Co Kg Procedimento per la rilegatura di un blocco di libro o di opuscolo inuna copertina e dispositivo per l'esecuzione del procedimento
DE10260476A1 (de) * 2002-12-21 2004-07-01 Kolbus Gmbh & Co. Kg Vorrichtung zum Abpressen von Buchblocks
DE102006023285B4 (de) * 2006-05-18 2015-02-12 Kolbus Gmbh & Co. Kg Vorrichtung zum Abpressen von Buchblocks
JP2017136831A (ja) * 2016-02-01 2017-08-10 ミュラー・マルティニ・ホルディング・アクチエンゲゼルシヤフト ブックブロックの予備成形及び丸味出しのための装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1959656A (en) * 1931-02-19 1934-05-22 Cahen Alfred Machine for rounding and backing books
GB630529A (en) * 1947-08-18 1949-10-14 William Arthur Hopkinson Auld Improvements in or relating to bookbinding machines
US2455971A (en) * 1947-11-04 1948-12-14 James F Bosch Bookbinding and method of producing the same
US3258798A (en) * 1962-08-08 1966-07-05 T W & C B Sheridan Co Book back rounding and backing
FR1439825A (fr) * 1963-04-24 1966-05-27 Tw & Cb Sheridan Co Perfectionnements apportés aux machines pour endosser et arrondir les livres
GB1529734A (en) * 1975-12-01 1978-10-25 Thompson J Bookbinding

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED, Section P/Q, week E07, 31 märz 1982, Derwent publications Ltd., London GB; SU A 827324 *

Also Published As

Publication number Publication date
EP0444410A1 (fr) 1991-09-04
JPH04216098A (ja) 1992-08-06
DE59101347D1 (de) 1994-05-19
DE4005949A1 (de) 1991-08-29
US5104275A (en) 1992-04-14

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