EP3406550A1 - Dispositif d'alignement de découpes plates - Google Patents

Dispositif d'alignement de découpes plates Download PDF

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Publication number
EP3406550A1
EP3406550A1 EP17173059.1A EP17173059A EP3406550A1 EP 3406550 A1 EP3406550 A1 EP 3406550A1 EP 17173059 A EP17173059 A EP 17173059A EP 3406550 A1 EP3406550 A1 EP 3406550A1
Authority
EP
European Patent Office
Prior art keywords
rollers
roller
transport
alignment
aligning
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.)
Granted
Application number
EP17173059.1A
Other languages
German (de)
English (en)
Other versions
EP3406550B1 (fr
Inventor
Bernd Herfurth
Stefan Schäfer
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.)
KAMA GmbH
Original Assignee
KAMA GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KAMA GmbH filed Critical KAMA GmbH
Priority to EP17173059.1A priority Critical patent/EP3406550B1/fr
Publication of EP3406550A1 publication Critical patent/EP3406550A1/fr
Application granted granted Critical
Publication of EP3406550B1 publication Critical patent/EP3406550B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/16—Inclined tape, roller, or like article-forwarding side registers
    • B65H9/166—Roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/15—Roller assembly, particular roller arrangement
    • B65H2404/152—Arrangement of roller on a movable frame
    • B65H2404/1521—Arrangement of roller on a movable frame rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis
    • B65H2404/15212—Arrangement of roller on a movable frame rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis rotating, pivoting or oscillating around an axis perpendicular to the roller axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1764—Cut-out, single-layer, e.g. flat blanks for boxes

Definitions

  • the invention relates to a device for aligning flat blanks, in particular in printing and printing finishing machines such as punching machines, embossing machines, creasing, folding and gluing machines, etc., and in installations in which two or more such machines arranged one behind the other and connected together by a transport device are that blanks be successively transported through them.
  • printing and printing finishing machines such as punching machines, embossing machines, creasing, folding and gluing machines, etc.
  • flat blanks should be understood to mean workpieces that are typically processed in the printing industry and in print finishing, for example paper or cardboard sheets or use for subsequent further processing, for example folding cartons.
  • the term benefit refers to the number of printed copies of a printed product.
  • several identical or different copies for example labels, posters, packaging, business cards, etc.
  • the isolated benefits can then for example in a folding and gluing machine to the finished product, such as a greeting card, presentation folder, carton or the like, be further processed.
  • the flat blanks are often moved on conveyors through one or more consecutive machines, which act in various ways on the flat blanks, for example, printing a sheet, embossing, punching benefits from the sheet, scoring the benefits, folding
  • Such transport devices may for example comprise a conveyor belt which is guided around deflection rollers and defines a horizontal transport plane for the flat blanks.
  • the conveyor belt may be perforated and below the load passage on which the flat blanks rest during transport have a vacuum box in which a vacuum is created so that the atmospheric pressure forces the flat blanks onto the top of the load gallery and thereby in position be kept on the conveyor belt to prevent unwanted slippage during transport.
  • roller conveyors have been established for use in and between printing finishing machines, which have a plurality of horizontally arranged, rotatable transport rollers, of which at least a part is drivable.
  • the uppermost generatrices of the transport rollers define the transport plane here, and the transport direction of the flat blanks is transverse to the longitudinal axes of the transport rollers.
  • Such transport devices may for example be an integral part of a processing machine, such as a folding and gluing machine, in the tools for Implementation of individual processing steps are arranged on the flat blanks above the transport device.
  • An example of a folding and gluing machine with a roller conveyor is in EP 2 188 090 B1 described.
  • An example of a device for breaking and separating, which can be arranged, for example, immediately behind a punching machine is in EP 2 858 798 B1 described.
  • transport devices can be arranged without their own processing function between two successive machines in order to transport the flat blanks from one processing step to the next processing step.
  • a creasing device for fluting flat blanks which comprises creasing shafts and a transport device formed by transport rollers for transporting the blank in a transport plane and a transport direction.
  • the blank is pressed by a hold-down on the transport plane.
  • an alignment means arranged parallel to the transport direction is provided for aligning the blank.
  • the transport device is rotatable about its vertical axis, that is to say about the transport plane normal, whereby the blank is also transported transversely to the transport direction, optionally either to one side or to the other side, to the alignment means during transport and to be aligned there.
  • this solution is not practical in those cases in which flat blanks must be moved over a longer transport distance and thereby the position and orientation may need to be corrected several times.
  • rollers are rotatable about their respective horizontal axes, the axes being arranged parallel to each other and "in inclined position", ie obliquely to a perpendicular to the conveying direction, such that a thrust component is transmitted to the blanks transversely to the conveying direction and the blanks in Touching the guide surface brings.
  • the inclination of the axes of the rollers is fixed and not changeable. This can be a problem, for example, when working with different transport speeds, because too high an angle of the axes at high speeds can damage the flat blanks. Even if one modifies this device so that the inclination of the axes can be changed, however, this would mean that the rollers with their contact points no longer hit the uppermost generatrices of the transport rollers. It would have the entire device to be adjusted in the transport direction to compensate for this error.
  • An object of the invention is therefore to provide an improved device for aligning flat blanks, which can be used for short conveyor lines, ie, for example, between two consecutive machining tools, as well as at different transport speeds. Another object of the invention is to allow a quick, easy and accurate adjustment of all axes. Another object of the invention is that when changing the position of the axes the rollers the device as a whole does not have to be adjusted.
  • an alignment device for aligning flat blanks which comprises a support structure, are arranged on the at least two rotatable rollers, each having a horizontal axis of rotation with a pair of equal distance from each other, so that their contact points on a horizontal plane on a straight line lie, with their axes of rotation are aligned parallel to each other, and wherein each roller is rotatable about a running through its contact point vertical axis of rotation and fixed at different angular positions.
  • a per se known pressure device as used for example in folding and gluing machines, especially those with roller conveyors, and having a plurality of successively arranged pressure rollers, which forces the flat blanks in cooperation with transport rollers arranged underneath, so to modify in that the pressure rollers are angularly adjustable about their respective vertical axis, so that they - unlike the known pressure devices with exclusive directional stability - optionally also a correction of the position (transport track) and / or orientation (angle to the transport direction) of the flat blanks allows, and - different as in the alignment device DE 10 2009 023 110 A1 - the location of the roles relative to the underlying transport rollers remains unchanged because they remain in place, ie their Advice points do not move.
  • rollers are arranged elastically in or on the support structure in the vertical direction. In this way, since each flat blank has a certain thickness, it is ensured that the roller of the orienting device can be lifted by the amount of this thickness from the transport roller arranged underneath, to allow the flat blank to pass, and this works equally well for blanks of different thicknesses the role continues to exert some pressure on the cut.
  • the elastic arrangement of the rollers on the support structure can be done in many ways. This is particularly easy to realize by each one spring element is arranged above the Aufstandsyaks each role. It is understood that the spring element in this embodiment must be arranged above the roller. The feature is said to indicate that a compressive force emanating from the spring element is toward the contact point of the roll, rather than laterally adjacent thereto.
  • the spring element is supported on its upper side - directly or indirectly - on the support structure to which the rollers themselves - directly or indirectly - are mounted.
  • the spring element may be, for example, a leaf spring, coil spring, an elastomer block or the like.
  • each roll one Having lifting device for lifting the roller.
  • the lifting device can either act directly on the roller or act indirectly on the roller via a roller holder, which will be explained in more detail below, in order to lift it.
  • either roller can be lifted individually to prevent this role from acting on flat blanks and thus reducing the lateral force acting on the blank.
  • rollers are each held in a roll holder, which in turn are attached to the support structure.
  • An angular adjustment of a roller is realized in this case by the associated roller holder is rotated about the running through the contact point of the roller vertical axis of the roller and fixed in a certain angular position.
  • a roll holder can be made in one or more parts, which will be discussed in more detail in the explanation of an embodiment of the proposed device.
  • rollers are each held in a roller holder, it can further be provided that the spring element is supported on its underside on the roller holder. As a result, the roller is elastically supported in or on the support structure in the vertical direction.
  • rollers are operatively connected to a common actuating device, in the actuation of all roles are rotated by an equal angle about their respective vertical axis.
  • a change in the angular position of the rollers is much easier and easier, because by a single adjustment all roles are adjusted simultaneously.
  • the common actuating device is advantageously operatively connected to all roller holders, ie an adjustment of the common actuating device causes a simultaneous angular adjustment by the same angular amount.
  • the operative connection can be achieved, for example, by an articulated connection between the supporting structure and the roller holder, by a pin which establishes a mechanical connection between the supporting structure and the roller holder, or the like.
  • the common control device may, for example, comprise a coupling rod which extends parallel to a line formed by the contact points of the rollers and is displaceable parallel to this line, and with the rollers, for example with axes on which the rollers are arranged, or with roller holders , to which the rollers are attached, is connected.
  • a displacement of the coupling rod can either be done freely, or the coupling rod is adjustable for example by a threaded spindle.
  • the common actuating device can be fixed at different angular positions of the rollers. This eliminates the need to lock each roller individually, and it is possible instead to fix all roles simultaneously by fixing the coupling rod at a selected angular position.
  • the common setting device has an angle indicator.
  • the angular amount at which the rollers have been adjusted can be read off.
  • the alignment device transmits, in addition to the movement component generated by the transport device in the transport direction, an additional movement component acting on the flat blanks transversely thereto.
  • This component is to move the flat blank against an alignment member to correct a positional error.
  • This alignment element may for example be a laterally attached to the transport device band against which the flat blank is moved. Such a band can be positioned with appropriate fasteners in the central region of the transport device. In general, therefore, the alignment element can be independent of the proposed alignment device and only cooperate with the alignment device due to its positioning on the transport device in order to align the flat blank correctly.
  • the supporting structure has an alignment element.
  • the alignment element may for example be formed by a vertical wall of the support structure, so that the flat blanks are pushed by the rollers against this vertical wall. This automatically adjusts the alignment element when the alignment device moves to another position Position of the transport path is positioned.
  • the proposed alignment device can be advantageously used in a transport device for transporting flat blanks for correcting positional errors of these flat blanks, which comprises a plurality of horizontally, with equal distance from each other in pairs, rotatably mounted transport rollers. It can further be provided that in the alignment of the distance between adjacent rollers is equal to the distance between adjacent transport rollers of the transport device, and the rollers of the alignment device above the arrangement of transport rollers be arranged so that each roller rests on a transport roller.
  • the transport device can be advantageously used in a processing device for processing flat blanks, which in addition to the transport device has a tool carrier device which is designed for supporting the alignment device and tools for processing the flat blanks, as for example in EP 2 188 090 B1 is described.
  • the tool carrier device is designed for the adjustable arrangement of tools along a shaping path and comprises two support rails extending parallel to one another in the longitudinal direction of the molding path and at least one cross member detachably connected to both support rails at a plurality of predetermined positions along the molding path is connectable, that it is arranged transversely to the longitudinal direction of the forming path.
  • the alignment device according to the embodiment whose details best the Fig. 2 to 4 can be seen, comprises a support structure 1, are mounted on the rollers 2 rotatable and angularly adjustable.
  • the alignment device is arranged above a roller conveyor 6 with transport rollers 61 so that the rollers 2 with their Aufstandsyaken stand on the uppermost surface line each a transport roller 61.
  • the support structure 1 a folded sheet metal whose vertical wall 11 is designed as an alignment
  • the underside has recesses for the transport rollers 61 of the transport device 6 so that the alignment element 11 extends below the transport plane through the top generatrices of the transport rollers 61st is defined.
  • the flat blanks S are pushed by the action of eight individually mounted rollers 2 against the alignment member 11 when they are aligned obliquely to the transport direction T.
  • inclined rollers 2 based on the transport direction T, a transverse force is generated on the flat blank S, which rests on the transport rollers 61 and is transported by them in the transport direction T.
  • the flat blank S is thereby driven against the alignment member 11 and aligned thereto.
  • the rollers 2 are each angularly adjustable by a vertical axis extending through their contact points.
  • Each roller 2 is mounted on a roller holder 3, which has an inner part 31 and an outer part 32.
  • the respective outer part 32 is attached to a horizontal wall of the support structure 1 by means of a fastening element 34 angularly adjustable.
  • an inner part 31 is pivotally mounted about a pivot axis 35. The pivotal attachment on the one hand ensures that the roller 2 can escape upwards when a flat blank S enters the gap between the roller 2 and the transport roller 61 located underneath.
  • each roll 2 individually is raised to prevent an impact of the roller 2 on flat blanks S, for example, to reduce the force acting on the blank S transverse force.
  • acting between the inner part 31 and outer part 32 lifting device 36 is provided in this embodiment, which is arranged by a pin 31 arranged on the inner part and a slot 32 disposed on the outer part, in which engages the pin.
  • the slot is designed so that the pin can be held therein at two different heights. If the pin is at the lower position, the roller 2 cooperates with the transport roller 61 arranged underneath. On the other hand, when the pin is moved to the higher position, the roller 2 is raised so that it does not cooperate with the transport roller 61 disposed thereunder.
  • the rollers 2 are rotatably mounted on axes 21 which are fixed to the inner part 31 of the roll holder 3, but can move freely up and down relative to the outer part 32 of the roll holder 3.
  • a coil spring 22 is arranged for the elastic support of the roller 2 in the vertical direction, the underside of which is supported on the inner part 31 of the roller holder 3 and whose top is on the outer part 32 of the roll holder 3 and on this the supporting structure 1 is supported.
  • the common setting device 4 comprises an adjustable coupling rod 41 to which the outer parts 32 of the roller holders 3 are attached via actuating pins 33 mounted thereon by means of a respective joint 42.
  • the coupling rod 41 can by means of a hand knob 44 which actuates a threaded spindle 43, in the transport direction T out and moved forth and locked by means of a locking member 45 in any position, ie fixed.
  • the articulated actuating pins 33 are moved with, whereby the outer parts 32, and with them the inner parts 31 of the roll holders 3 and the attached rollers 2, are angularly adjusted.
  • the inclination of the rollers 2 can be adjusted manually by ⁇ 10 ° via the movement of the coupling rod 41.
  • the fulcrum of the rollers 2 is located centrally above the respective contact point of the rollers. 2
  • Processing device shown has a transport device 6 for transporting flat blanks S, which comprises a plurality of horizontally oriented, with the same distance from each other in pairs, rotatably mounted transport rollers 61.
  • a tool carrier device 7 arranged on the processing device for the adjustable arrangement of tools along a molding path comprises two carrier rails 71 running parallel to one another in the longitudinal direction of the molding path and at least one cross member 72 which is connected to both carrier rails 71 at a plurality of predetermined positions along the molding path detachably connectable so that it is arranged transversely to the longitudinal direction of the forming path.
  • an alignment device of the type proposed in which the distance between adjacent rollers 2 is equal to the distance of adjacent transport rollers 61 of the transport device 6. It is expedient the Aligning device arranged above the arrangement of transport rollers 61 so that each roller 2 rests on a transport roller 61.
  • the attachment of the alignment device to the tool carrier device 7 of the processing device can be done for example by cross-clamping, each having a holding bar 51 a in Fig. 5 shown holding structure 5, which holds the alignment device on its underside, connects to a cross member 72.
  • rollers 2 are pressed onto the transport rollers 61 by the spring elements 22 arranged in the respective roller holder 3.
  • a height adjustment or the lifting of the entire alignment device can be done byvolnverstellieri 52, for example, eccentric, which are arranged on each of the two support rods 51.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Registering Or Overturning Sheets (AREA)
EP17173059.1A 2017-05-26 2017-05-26 Dispositif d'alignement de découpes plates Active EP3406550B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17173059.1A EP3406550B1 (fr) 2017-05-26 2017-05-26 Dispositif d'alignement de découpes plates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17173059.1A EP3406550B1 (fr) 2017-05-26 2017-05-26 Dispositif d'alignement de découpes plates

Publications (2)

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EP3406550A1 true EP3406550A1 (fr) 2018-11-28
EP3406550B1 EP3406550B1 (fr) 2019-10-16

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EP17173059.1A Active EP3406550B1 (fr) 2017-05-26 2017-05-26 Dispositif d'alignement de découpes plates

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021120511A1 (de) 2021-08-06 2023-02-09 Ahm Solutions Gmbh Transfer- und Ausrichtmodul für Verpackungsmaterial sowie Verfahren zum Transferieren und Ausrichten von Verpackungsmaterial sowie dessen Verwendung
WO2024046972A1 (fr) * 2022-09-01 2024-03-07 Bobst Mex Sa Module d'alignement pour bords irréguliers

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5019026A (en) * 1989-02-09 1991-05-28 Bobst Sa Device for aligning box blanks within a machine used for processing them
EP1588966A1 (fr) * 2004-04-21 2005-10-26 Bobst S.A. Dispositif d'alignement d'éléments en plaque dans une machine les travaillant
DE102009023110A1 (de) 2008-05-28 2009-12-03 Giorgio Petratto Vorrichtung zum Ausrichten von Rohlingen in einer Falt- und Klebemaschine und Falt- und Klebemaschine, die mit dieser Vorrichtung versehen ist
EP2188090B1 (fr) 2007-08-01 2011-11-09 Kama GmbH Dispositif porte-outil et dispositif pour usiner des pièces découpées plates
EP2858798B1 (fr) 2013-05-03 2017-01-04 Kama GmbH Dispositif et procédé de décorticage et de séparation de découpes
EP2845825B1 (fr) 2013-07-17 2017-05-03 Kama GmbH Dispositif de rainurage équipé d'un dispositif de transport rotatif

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5019026A (en) * 1989-02-09 1991-05-28 Bobst Sa Device for aligning box blanks within a machine used for processing them
EP1588966A1 (fr) * 2004-04-21 2005-10-26 Bobst S.A. Dispositif d'alignement d'éléments en plaque dans une machine les travaillant
EP2188090B1 (fr) 2007-08-01 2011-11-09 Kama GmbH Dispositif porte-outil et dispositif pour usiner des pièces découpées plates
DE102009023110A1 (de) 2008-05-28 2009-12-03 Giorgio Petratto Vorrichtung zum Ausrichten von Rohlingen in einer Falt- und Klebemaschine und Falt- und Klebemaschine, die mit dieser Vorrichtung versehen ist
EP2858798B1 (fr) 2013-05-03 2017-01-04 Kama GmbH Dispositif et procédé de décorticage et de séparation de découpes
EP2845825B1 (fr) 2013-07-17 2017-05-03 Kama GmbH Dispositif de rainurage équipé d'un dispositif de transport rotatif

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021120511A1 (de) 2021-08-06 2023-02-09 Ahm Solutions Gmbh Transfer- und Ausrichtmodul für Verpackungsmaterial sowie Verfahren zum Transferieren und Ausrichten von Verpackungsmaterial sowie dessen Verwendung
WO2024046972A1 (fr) * 2022-09-01 2024-03-07 Bobst Mex Sa Module d'alignement pour bords irréguliers

Also Published As

Publication number Publication date
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