EP3482968B1 - Dispositif et procédé de fabrication de livres - Google Patents

Dispositif et procédé de fabrication de livres Download PDF

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Publication number
EP3482968B1
EP3482968B1 EP18205076.5A EP18205076A EP3482968B1 EP 3482968 B1 EP3482968 B1 EP 3482968B1 EP 18205076 A EP18205076 A EP 18205076A EP 3482968 B1 EP3482968 B1 EP 3482968B1
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EP
European Patent Office
Prior art keywords
adjustment
pick
material section
lining
conveying apparatus
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EP18205076.5A
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German (de)
English (en)
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EP3482968A1 (fr
Inventor
Hans Müller
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Mueller Martini Holding AG
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Mueller Martini Holding AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42C—BOOKBINDING
    • B42C9/00—Applying glue or adhesive peculiar to bookbinding
    • B42C9/02—Applying glue or adhesive peculiar to bookbinding for securing back linings, strips, ribbons or headbands

Definitions

  • the invention relates to a device for gluing back the backs of book blocks, each with a material section of a backing material, which are transported individually one after the other between transport elements of a conveyor device in a conveying direction running parallel to the back, wherein a laterally fixed, vertical center plane of the conveyor device is centered between the transport elements and centrally through the Book blocks runs.
  • the invention relates to a corresponding method for gluing the backs of book blocks and a book production line with a backing device.
  • the backing device has a feed device providing the backing material transversely to the vertical center plane of the conveyor, a cross cutter for separating individual material sections from the backing material, a support table arranged downstream of the cross cutter for receiving a separated material section and a transmission device with two spaced apart transversely to the vertical center plane of the conveyor Carry-along elements for transferring a severed section of material from the support table to the back of a book block to be glued back and already provided with adhesive beforehand.
  • At least the cross cutter, the support table and the transfer device of the backing device form a common adjustment unit, both this adjustment unit and at least one first driver element being adjustable relative to a second driver element of the transmission device transversely to the vertical center plane of the conveyor device.
  • the book blocks transported to the backing device are first heated on a heating section and then, if necessary, rounded and pressed. Only then will the backs processed in this way are glued and reinforced with appropriate adhesive backing materials. Above all, thick, rounded books or books with straight spines require great, permanent dimensional stability. In the case of unfolded book blocks or books with high usage requirements, the spine is therefore provided with additional adhesive material before the capital and pasting.
  • This strip-shaped reinforcement material mostly consists of molton, gauze or tear-resistant paper.
  • the gauze is an openly woven, adhesive-permeable material that is usually glued to the back of the book block with a protrusion of 10-25 mm on both sides. For this purpose, the corresponding material sections are dimensioned correspondingly larger when they are separated from the backing material.
  • the backs of book blocks are glued back in book production lines in which successive book blocks are clamped at the same mutual distance, for example between conveyor chains of a conveyor device, and are transported in a conveying direction corresponding to the longitudinal direction of their back.
  • the material sections of a backing material used for backing are placed on the back in sequentially arranged backing devices, each consisting of a gluing device for the spine of the book block and a feed and transfer device for the material section used for backing, and then pressed together in a pressing station with a flexible cushion.
  • the processing device for combined backing and capping is often referred to as the capital station and the backing device for gassing as a gauze station.
  • a backing device and a method for backing the spines of book blocks transported in a conveying direction running parallel to the spine are disclosed in US Pat EP1894739 A1 , which discloses the preamble of claim 1, is known.
  • the backing device has a feed device with a cross cutter that separates a web of backing material into material sections and a transfer device that transports the respective material section to the back of the book block to be backed up.
  • the feed device conveys the backing material under an upper knife of the cross cutter and places it on a support table arranged downstream until the desired length of the next material section is reached.
  • the transfer device After separation from the backing material, the transfer device takes over this material section, transports it in a pivoting movement transversely to the conveying direction of the book blocks and finally places it on the back of an associated book block clamped between transport elements and previously glued.
  • the transmission device has a driver element designed as a suction plate.
  • a similar solution is from the EP2269835 A2 known, which, however, has a driver element designed as a needle plate instead of the suction plate.
  • suction or needle plates Since the dimensions of the suction or needle plates are in principle unchangeable, they can only be insufficiently adapted to the requirement of different lengths of material sections due to different block thicknesses.
  • material sections provided for rounded backs of book blocks always only have a line contact with the back when they are deposited, so that a material section applied in this way cannot optimally cling to the back of the book block in every case. As a result, quality impairments can occur.
  • the backing material is first fed accordingly so that it is a length that differs from the previous section of material lies on the support table.
  • the machine operator adjusts the first driver element relative to the second driver element transversely to the vertical center plane of the conveyor device by means of the manual adjustment so that the two driver elements can grasp the material section of changed length in the area of its ends on both sides.
  • the machine operator issues a control command to the servomotor. This adjusts the backing device accordingly transversely to the vertical center plane of the conveyor and opposite to the previous adjustment of the first driver element, so that the material section of other length is placed symmetrically on the back of the book block.
  • this object is achieved in the case of a backing device in that at least the first driver element of the transmission device has a first actuator and the adjustment unit of the backing device has a second actuator, that the two actuators are operatively connected to a common control unit in such a way that at least the first driver element and the adjustment unit are adjustable by means of their respective actuator depending on a change in length of a subsequent material section compared to a previous material section transversely to the vertical center plane of the conveyor.
  • the changeover time when gluing the back of book blocks with material sections of variable length can be shortened and the process reliability increased become.
  • the adhesive backing sections can also be applied to the back of the respective book block both symmetrically and asymmetrically, ie with any different overhang on both sides, depending on requirements.
  • automation of the adjustment processes that take place in the backing device with regard to the length of the material sections is implemented.
  • the adjustment unit is supported on a machine frame of the rear-gluing device that receives the second actuating drive.
  • the adjustment unit can thus be adjusted in a simple manner.
  • the transmission device has a pivot lever which can be pivoted about a pivot axis received in the adjustment unit.
  • the swivel lever is connected to a transport table which can be swiveled transversely to the vertical center plane of the conveying device and which has a support element for the second driver element.
  • At least one adjusting spindle connected to the actuator is mounted in the support element, on which an adjusting nut connected to the first driver element is guided.
  • the entrainment elements are connected to a suction line. This shows a simple and inexpensive solution for loading the entrainment elements.
  • the first entrainment element has a first adjustment path and the adjustment unit has a second adjustment path, each transverse to the vertical center plane of the conveyor device wherein the second adjustment path corresponds in terms of amount to half the first adjustment path and wherein the adjustment unit has a second adjustment direction which is opposite to a first adjustment direction of the first driver element.
  • the adhesive backing material consists of gauze. This indicates a suitable adhesive backing material.
  • the object is achieved in a method for gluing back the spines of book blocks transported individually one after the other between transport elements of a conveyor device in a conveying direction running parallel to the spine in that the adjustment of the first entrainment element of the transmission device with a first actuator and the adjustment of the adjustment unit of the backing device with a second actuator takes place in cooperation with a common control unit.
  • this method the backing of the backs of book blocks with material sections of variable length can be carried out more easily, quickly and safely.
  • an automation of the adjustment processes that take place with regard to the length of the material sections when gluing back is realized.
  • the adhesive backing material forming the material section to be separated is fixed on a support table with its entrainment elements before separation and until it is taken over by the transfer device. This ensures that the material section separated from the adhesive backing material is reliably taken over by the transfer device.
  • the adjustment of the first drive element takes place on a first adjustment path and the adjustment of the adjustment unit takes place on a second adjustment path, the adjustment unit being adjusted in a second adjustment direction which is opposite to a first adjustment direction of the first drive element and the adjustment to the second adjustment only takes place by half the amount of the adjustment on the first adjustment.
  • a backing material made of gauze is used. This indicates the use of a suitable adhesive backing material.
  • the task is also carried out by a book production line with a conveyor device having transport elements, in which book blocks are transported individually one after the other between the transport elements in a conveying direction running parallel to their spine, with a laterally fixed, vertical center plane of the conveyor device centered between the transport elements and through the book blocks runs, as well as solved with a backing device according to one of claims 1 to 6.
  • Fig. 1 shows a cross-section through a book production line, not shown in detail, in the area of a gauze station as an example of a backing device 1 according to the invention for backing, ie in this case gassing, the spine 16 of book blocks 15.
  • the book production line has a conveyor 17 interacting with the backing device 1 with two transport elements 18, 19 for transporting the book blocks 15 in a conveying direction BT running parallel to their spine 16.
  • a laterally fixed, vertical center plane 14 of the conveyor device 17 runs centrally between the transport elements 18, 19 and centrally through the book blocks 15.
  • the adhesive backing device 1 has a feed device 2 for a gauze-made adhesive material 3 as well as a cross cutter 4 with an upper knife 8 and a lower cutter 9 for successively separating individual material sections 10 from the adhesive backing material 3. Downstream of the cross cutter 4 is a support table 6 for receiving one material section 10 arranged. Furthermore, the backing device 1 has a transfer device 5 for transferring a separated material section 10 located on the support element 6 to the spine 16 of a book block 15 that is ready to be glued back.
  • the feed device 2, the cross cutter 4, the support table 6 and the transfer device 5 of the Backing device 1 form a common adjustment unit 7 which is supported on a machine frame 33 of the backing device 1.
  • the transmission device 5 has two entrainment elements 21, 22 which are spaced apart from one another transversely to the vertical center plane 14 of the conveying device 17 and to each of which a suction line 37 is connected.
  • the first driver element 21 is connected to a first actuator 28 and can therefore be adjusted as a function of a change in length of the material section 10 transversely to the vertical center plane 14 of the conveying device 17, ie transversely to the conveying direction BT of the book blocks 15.
  • the transmission device 5 has a pivot lever 11 which can be pivoted about a pivot axis 13 received in the adjustment unit 7 and which is connected to a transport table 20 pivotable transversely to the vertical center plane 14 of the conveyor device 17.
  • the transport table 20 has a stationary support element 30 for the second, thus likewise stationary, driver element 22.
  • two adjusting spindles 26 connected to the first actuator 28 are mounted, on each of which a first adjusting nut 27 connected to the first driver element 21 is guided.
  • the adjusting spindles 26 are connected to the first adjusting drive 28 via a first adjusting gear 29.
  • the first actuator 28, the first adjusting gear 29, the adjusting spindles 26 and the adjusting nut 27 form a first adjusting device 12 with a first adjustment path 12 'for adjusting the distance between the first and the second driver element 21, 22.
  • the first actuator 28 can also be directly connected to the Attack adjusting spindles 26.
  • the common adjustment unit 7 of the adhesive backing device 1 can be adjusted transversely to the vertical center plane 14 of the conveyor 17 depending on a change in length of a subsequent material section 10 compared to a previous material section 10 by means of a second actuator 36 connected to it and arranged on the machine frame 33.
  • the second actuating drive 36 is connected by means of a second actuating gear 32 to two adjusting spindles 34, on each of which a second adjusting nut 35 attached to the common adjusting unit 7 is arranged.
  • the second adjusting drive 36, the second adjusting gear 32, the adjusting spindles 34 and the second adjusting nut 35 form a second adjusting device 25 with a second adjustment path 25 'for adjusting the common adjusting unit 7 of the backing device 1.
  • a backing device 1 is also conceivable in which the Feed device 2 is not part of the adjustment unit 7, the adjustment of which is then compensated for by a corresponding drive, not shown, of the feed device 2.
  • the two actuators 28, 36 are operatively connected to a common control unit 31 in such a way that at least the first driver element 21 and the adjustment unit 7 by means of their respective actuating drive 28, 36 as a function of a change in length of a subsequent material section 10 compared to a previous material section 10 transversely to the vertical center plane 14 the conveyor 17 are adjustable.
  • a backing adhesive material 3 consisting of gauze is fed to it from a storage device (not shown) in a conveying direction BT of the book blocks 15 running perpendicular to the viewing direction.
  • the feed device 2 pushes the tape-shaped backing material 3, previously cut to the correct spine length with a circular knife (not shown), under the upper knife 8 of the cross cutter 4, which is in the upper position, in the direction of the book block 15.
  • the backing material 3 is transported so far that a required length of the material section 10 later used for gluing back an associated book block 15 is located downstream of the cross cutter 4 on the support table 6.
  • the feed device 2 which is also connected to the control unit 31, is given precisely the extent to which the adhesive backing material 3 is to be cut off.
  • This dimension is matched to the spine 16 of an associated book block 15 and a predetermined overlap Y on both sides of the intended material section 10 relative to the spine 16 of the book block 15 to be backed up and corresponds to a length A1 ... n of the later material section 10 now on the support table 6 adjoining downstream of the lower knife 9 of the cross cutter 4, which support table 6 is part of the adjusting unit 7, which can be moved in a modular manner transversely to the vertical center plane 14 of the conveyor device 17.
  • the transport table 20 of the transfer device 5 is pivoted into a receiving position 23 and the intended material section 10 is positioned between the first adjustable carrier element 21, which is designed as a suction strip with a suction surface 21 ' , the second, also designed as a suction strip with a suction surface 22 'and stationary driver element 22 and the support table 6 are clamped and therefore fixed on this.
  • the two entrainment elements 21, 22 then suck in the rear adhesive material 3 that has been pushed forward.
  • the material section 10 is cut off by means of the cross cutter 4.
  • clamping for fixing may be unnecessary.
  • the transport table 20 of the transfer device 5 which is variable in width due to the adjustable driver element 21, transports the separated material section 10 by means of a 180 ° pivoting movement into a delivery position 24.
  • the transport table 20, which is always aligned parallel to the support table 6, reaches the receiving position 23 or the delivery position 24 through a movement about the pivot axis 13 of the transmission device 5 (see also Fig. 4 and 6th ), regardless of its adjustability with the first or the second adjusting device 12, 25.
  • the width of the driver elements 21, 22 is in Figure 6 each designated with E.
  • the distance C1 between the two entrainment elements 21, 22 accordingly corresponds to the difference between the length A1 of the material section 10 and the respective width E of the entrainment elements 21, 22.
  • the transport table 20 places the material section 10 on the back 16 of the previously provided with glue Book blocks 15 and swivels back into the receiving position 23 in order to take over the next material section 10 in the same way.
  • Fig. 2 shows a book block 15 with the same block thickness D1 as in FIG Fig. 1 , but with a material section 10 'made of gauze and manufactured in the NASTA standard with a length A2, also in the delivery position 24.
  • the in Figure 5 Following the calculation sketch shown, the length A2 corresponds to the original length A1 of the standard material section 10 plus twice a one-sided difference ⁇ Y of the lateral overhang Y 'of the material section 10' manufactured in the NASTA standard compared to the corresponding lateral overhang Y of the standard material section 10.
  • the material section 10 shown is carried out via the two adjusting devices 12, 25, ie on the first adjustment path 12 'of the adjustable driver element 21 with respect to the stationary driver element 22 or on the second adjustment path 25' of the adjustment unit 7 with respect to the machine frame 33 set by means of the first actuator 28 of the first adjusting device 12 and by means of the second actuator 36 of the second adjusting device 25 opposite the central plane 14 of the conveyor 17 of the book production line and thus opposite the middle of the book block 15 to a new distance B2 to the central plane 14.
  • the new distance B2 differs from that in Figure 1 and Figure 6 entered distance B1 corresponding to the difference in length A1 of the previous material section 10 ( Figure 1 ) to the length A2 of a new material section 10 '( Figure 2 ).
  • a new distance B1 ... n is set when a material section with a different length A1 ... n is present.
  • the adjustable entrainment element 21 of the transport table 20 with the first adjusting device 12 is set to a corresponding distance C1... N and accordingly Figure 2 set to a distance C2 from the stationary driver element 22.
  • the first actuating device 12 has the first actuating drive 28, designed as a servomotor, which is connected to two parallel adjusting spindles 26 via the first actuating gear 29.
  • the adjusting spindles 26 are mounted in the support element 30 which receives the second, stationary driver element 22.
  • Each adjusting spindle 26 also carries the first adjusting nut 27 connected to the adjustable driver element 21.
  • the distances B1 ... n, C1 ... n to be set with the two adjusting devices 12, 25 are determined in accordance with Fig. 5 as well as the Figures 2 and 6th calculated in the control unit 31 of the adhesive backing device 1 and transmitted to the respective actuating device 12, 25 ( Fig. 1 ).
  • the control unit 31 is to be informed of the respective lateral overhang Y, Y 'of the material section 10, 10'.
  • the adjusting devices 12, 25 are given the difference 2x ⁇ Y between a previous length of a standard material section 10 and a new, desired length of another, here a wider material section 10 '. All other format data such as the block thickness D1 ... n etc. are available in the machine data.
  • FIG 5 a position of the transfer device 5 in the delivery position 24 is shown above, in which the still extended standard material section 10 having the projection Y is just touching the spine 16 of the book block 15.
  • the illustration below shows the end position of the pivoting movement of the transmission device 5.
  • the material section 10 with the original length A1 has clung to the back 16 of the book block 15, which shortens its horizontal width.
  • the material section 10 on the suction surfaces 21 ', 22' of the entrainment elements 21, 22 is shifted slightly towards their center in such a way that its adhesion to the respective entrainment element 21, 22 is maintained.
  • Figure 5 the situation for a book block 15 of the same block thickness D1 with a material section 10 'manufactured in the NASTA standard and a correspondingly larger overhang Y' is shown.
  • A. 2 D. 1 + 2 ⁇ Y + 2 ⁇ ⁇ Y with ⁇ Y as the one-sided difference between the overhang Y of the standard material section 10 and the larger overhang Y 'of the material section 10' manufactured in the NASTA standard.
  • the Fig. 3 shows a material section 10 ′′ located in the transfer position 24 and manufactured in accordance with the NASTA standard, which is intended for a book block 15 with a greater block thickness D3.
  • Fig. 4 points one to the illustration in Fig. 3 following processing step, in which the transfer device 5 has been pivoted again into the receiving position 23 in order to take over a next material section 10 ′′ for a subsequent book block 15 with the same block thickness D3 after it has been separated from the backing material 3.
  • Fig. 5 illustrates the mathematical relationship already described above for two book blocks 15 of the same block thickness D1 and a length A1 of the material section 10 according to the standard, or a length A2 of the material section 10 'according to the NASTA standard.
  • the control unit 31 moves the actuating devices 12, 25 according to a movement coupling.
  • the rear edge of the material section 10, 10 ', 10 " is thus also defined and its length A1 is thus determined.
  • the position of the knife edge of the upper knife 8 of the cross cutter 4 is determined in relation to the center plane 14 of the conveyor device 17 depending on the block thickness D1 ... n of the book block 15 and / or adjusted depending on the protrusion of the material section 10, 10 ', 10 ".
  • the second adjustment path 25' is selected by means of the control unit 31 in terms of amount so that it is half
  • the adjustment unit 7 is adjusted in a second adjustment direction, which is opposite to a first adjustment direction of the first driver element 21. If, on the other hand, an asymmetrical placement of adhesive backing sections 10, 10 ', 10 "is to be created, one or both of them can Adjustment paths 12 ', 25' are changed accordingly, both in terms of the amount and in terms of the direction of adjustment.

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Claims (11)

  1. Dispositif dévolu au doublage contrecollé, à l'aide d'un segment respectif (10, 10', 10") d'un matériau (3) de doublage contrecollé, des dos (16) de corps d'ouvrage (15) transportés individuellement en succession mutuelle entre des éléments de transport (18, 19) d'un système de convoyage (17), dans une direction de convoyage (BT) s'étendant parallèlement auxdits dos (16), sachant qu'un plan médian vertical (14) dudit système de convoyage (17), fixe dans le sens latéral, s'étend centralement entre lesdits éléments de transport (18, 19), de même que centralement à travers lesdits corps d'ouvrage (15), ledit dispositif (1) de doublage contrecollé comprenant
    • un système d'alimentation (2) délivrant le matériau (3) de doublage contrecollé, transversalement par rapport au plan médian vertical (14) du système de convoyage (17),
    • un sectionneur transversal (4), conçu pour dissocier des segments individuels (10, 10', 10") d'avec ledit matériau (3) de doublage contrecollé,
    • un plateau-reposoir (6) implanté en aval dudit sectionneur transversal (4), en vue de recevoir un segment de matériau (10, 10', 10") respectivement dissocié,
    • un système de transfert (5) équipé de deux éléments entraîneurs (21, 22) distants l'un de l'autre transversalement par rapport audit plan médian vertical (14) du système de convoyage (17), en vue de transférer un segment de matériau (10, 10', 10") dissocié, à partir dudit plateau-reposoir (6), vers le dos (16) d'un corps d'ouvrage (15) voué au doublage contrecollé et déjà préalablement muni d'un adhésif,
    caractérisé par le fait
    qu'au moins le sectionneur transversal (4), le plateau-reposoir (6) et le système de transfert (5) dudit dispositif (1) de doublage contrecollé forment un ensemble unitaire d'ajustement (7) commun ;
    par le fait qu'à la fois cet ensemble unitaire d'ajustement (7), et au moins un premier élément entraîneur (21), sont de réalisation déplaçable vis-à-vis d'un second élément entraîneur (22) du système de transfert (5), transversalement par rapport au plan médian vertical (14) du système de convoyage (17) ;
    par le fait qu'au moins ledit premier élément entraîneur (21) du système de transfert (5) et ledit ensemble unitaire d'ajustement (7) du dispositif (1) de doublage contrecollé sont pourvus, respectivement, d'un premier entraînement de réglage (28) et d'un second entraînement de réglage (36) ; et
    par le fait que les deux entraînements de réglage (28, 36) sont en liaison opérante avec une unité de commande (31) commune, de façon telle qu'au moins le premier élément entraîneur (21), ainsi que l'ensemble unitaire d'ajustement (7), puissent être déplacés transversalement par rapport au plan médian vertical (14) du système de convoyage (17), au moyen de leur entraînement de réglage (28, 36) respectif, en fonction d'une variation de longueur d'un segment de matériau (10, 10', 10") successif vis-à-vis d'un segment de matériau (10, 10', 10") précédent.
  2. Dispositif selon la revendication 1, caractérisé par le fait que l'ensemble unitaire d'ajustement (7) est en appui contre un bâti de machine (33) dudit dispositif (1) de doublage contrecollé, qui reçoit le second entraînement de réglage (36).
  3. Dispositif selon la revendication 1 ou 2, caractérisé par le fait que le système de transfert (5) est doté d'un levier pivotant (11) qui peut pivoter autour d'un axe de pivotement (13) intégré dans l'ensemble unitaire d'ajustement (7), et est relié à un plateau transporteur (20) apte à pivoter transversalement par rapport au plan médian vertical (14) du système de convoyage (17) ; par le fait que ledit plateau transporteur (20) est muni d'un élément de support (30) dédié au second élément entraîneur (22) ; par le fait qu'au moins une broche de réglage (26), reliée au premier entraînement de réglage (28), est montée dans ledit élément de support (30) ; et par le fait qu'un écrou de réglage (27), relié au premier élément entraîneur (21), est guidé sur ladite broche de réglage (26) à présence minimale.
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé par le fait que les éléments entraîneurs (21, 22) sont raccordés à un conduit d'aspiration (37).
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé par le fait que le premier élément entraîneur (21) et l'ensemble unitaire d'ajustement (7) présentent, respectivement, un premier trajet de déplacement (12') et un second trajet de déplacement (25') dont les tracés respectifs sont transversaux par rapport au plan médian vertical (14) du système de convoyage (17), la valeur dudit second trajet de déplacement (25') correspondant à la moitié de celle dudit premier trajet de déplacement (12'), et ledit ensemble unitaire d'ajustement (7) présentant une seconde direction de déplacement orientée en sens inverse d'une première direction de déplacement dudit premier élément entraîneur (21).
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé par le fait que le matériau (3) de doublage contrecollé consiste en de la gaze.
  7. Procédé de doublage contrecollé, à l'aide d'un segment respectif (10, 10', 10") d'un matériau (3) de doublage contrecollé, des dos (16) de corps d'ouvrage (15) transportés individuellement en succession mutuelle entre des éléments de transport (18, 19) d'un système de convoyage (17), dans une direction de convoyage (BT) s'étendant parallèlement auxdits dos (16), sachant
    • qu'un plan médian vertical (14) dudit système de convoyage (17), fixe dans le sens latéral, s'étend centralement entre lesdits éléments de transport (18, 19), de même que centralement à travers lesdits corps d'ouvrage (15),
    • que ledit matériau (3) de doublage contrecollé est délivré transversalement par rapport audit plan médian vertical (14) dudit système de convoyage (17),
    • que des segments individuels (10, 10', 10") sont successivement dissociés d'avec ledit matériau (3) de doublage contrecollé, puis un tel segment de matériau (10, 10', 10") respectif est déposé en un emplacement de reprise, est ensuite prélevé dudit emplacement de reprise par un système de transfert (5) équipé de deux éléments entraîneurs (21, 22) distants l'un de l'autre transversalement par rapport audit plan médian vertical (14) du système de convoyage (17), est transporté en direction d'un corps d'ouvrage (15) voué au doublage contrecollé, puis est positionné sur le dos (16) de ce dernier, préalablement muni d'un adhésif,
    • qu'au moins la dissociation, le dépôt, la reprise et le positionnement s'opèrent dans un ensemble unitaire d'ajustement (7) commun, et
    • que, lors d'une variation de la longueur d'un segment successif (10, 10', 10") du matériau (3) de doublage contrecollé, vis-à-vis d'un segment de matériau (10, 10', 10") précédent, à la fois ledit ensemble unitaire d'ajustement (7) commun, et au moins un premier élément entraîneur (21), sont déplacés vis-à-vis d'un second élément entraîneur (22) du système de transfert (5), transversalement par rapport au plan médian vertical (14) du système de convoyage (17),
    caractérisé par le fait que
    le déplacement du premier élément entraîneur (21) du système de transfert (5) et le déplacement de l'ensemble unitaire d'ajustement (7) du dispositif (1) de doublage contrecollé s'opèrent, respectivement, à l'aide d'un premier entraînement de réglage (28) et d'un second entraînement de réglage (36), à chaque fois en coopération avec une unité de commande (31) commune.
  8. Procédé selon la revendication 7, caractérisé par le fait que le matériau (3) de doublage contrecollé, formant le segment de matériau (10, 10', 10") devant être dissocié, est bloqué à demeure sur un plateau-reposoir (6) préalablement à la dissociation, et jusqu'au prélèvement par le système de transfert (5) à l'aide des éléments entraîneurs (21, 22) de ce dernier.
  9. Procédé selon la revendication 7 ou 8, caractérisé par le fait que le déplacement du premier élément entraîneur (21) et le déplacement de l'ensemble unitaire d'ajustement (7) s'opèrent, respectivement, sur un premier trajet de déplacement (12') et sur un second trajet de déplacement (25'), sachant que ledit ensemble unitaire d'ajustement (7) est déplacé dans une seconde direction de déplacement orientée en sens inverse d'une première direction de déplacement dudit premier élément entraîneur (21), et sachant que le déplacement sur ledit second trajet (25') ne s'opère qu'à raison de la moitié de la valeur du déplacement sur ledit premier trajet (12').
  10. Procédé selon l'une des revendications 7 à 9, caractérisé par l'utilisation d'un matériau (3) de doublage contrecollé consistant en de la gaze.
  11. Ligne de production de livres équipée d'un système de convoyage (17) muni d'éléments de transport (18, 19), dans laquelle des corps d'ouvrage (15) sont transportés individuellement en succession mutuelle dans une direction de convoyage (BT) s'étendant parallèlement à leurs dos (16), entre lesdits éléments de transport (18, 19) du système de convoyage (17), sachant qu'un plan médian vertical (14) dudit système de convoyage (17), fixe dans le sens latéral, s'étend centralement entre lesdits éléments de transport (18, 19), de même que centralement à travers lesdits corps d'ouvrage (15) ; ainsi que d'un dispositif (1) de doublage contrecollé conforme à l'une des revendications 1 à 6.
EP18205076.5A 2017-11-13 2018-11-08 Dispositif et procédé de fabrication de livres Active EP3482968B1 (fr)

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ATE552122T1 (de) 2006-09-04 2012-04-15 Mueller Martini Holding Ag Vorrichtung zum hinterkleben oder kapitalen eines buchrückens
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