EP3533609A1 - Dispositif et procédé de traitement ultérieur séquentiel de feuilles imprimées - Google Patents

Dispositif et procédé de traitement ultérieur séquentiel de feuilles imprimées Download PDF

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Publication number
EP3533609A1
EP3533609A1 EP19159004.1A EP19159004A EP3533609A1 EP 3533609 A1 EP3533609 A1 EP 3533609A1 EP 19159004 A EP19159004 A EP 19159004A EP 3533609 A1 EP3533609 A1 EP 3533609A1
Authority
EP
European Patent Office
Prior art keywords
folding
sheet
folding table
compressed air
conveyor
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
EP19159004.1A
Other languages
German (de)
English (en)
Other versions
EP3533609B1 (fr
Inventor
Christian Troxler
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.)
Mueller Martini Holding AG
Original Assignee
Mueller Martini Holding AG
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 Mueller Martini Holding AG filed Critical Mueller Martini Holding AG
Publication of EP3533609A1 publication Critical patent/EP3533609A1/fr
Application granted granted Critical
Publication of EP3533609B1 publication Critical patent/EP3533609B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B41F13/56—Folding or cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F5/00—Attaching together sheets, strips or webs; Reinforcing edges
    • B31F5/005—Attaching together sheets, strips or webs; Reinforcing edges by folding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/12—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers
    • B65H29/14—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers and introducing into a pile
    • B65H29/145—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers and introducing into a pile the pile being formed between the two, or between the two sets of, tapes or bands or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/24—Delivering or advancing articles from machines; Advancing articles to or into piles by air blast or suction apparatus
    • B65H29/245—Air blast devices
    • B65H29/246—Air blast devices acting on stacking devices
    • B65H29/247—Air blast devices acting on stacking devices blowing on upperside of the sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/68—Reducing the speed of articles as they advance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/02—Pile receivers with stationary end support against which pile accumulates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
    • B65H37/06—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations for folding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H39/00—Associating, collating, or gathering articles or webs
    • B65H39/10—Associating articles from a single source, to form, e.g. a writing-pad
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H43/00—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/18—Oscillating or reciprocating blade folders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/421—Forming a pile
    • B65H2301/4212—Forming a pile of articles substantially horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/421—Forming a pile
    • B65H2301/4213—Forming a pile of a limited number of articles, e.g. buffering, forming bundles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/12—Means using fluid made only for exhausting gaseous medium producing gas blast
    • B65H2406/122—Nozzles
    • 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
    • B65H2701/18—Form of handled article or web
    • B65H2701/182—Piled package
    • B65H2701/1826—Arrangement of sheets
    • B65H2701/18264—Pile of alternate articles of different properties, e.g. pile of working sheets with intermediate sheet between each working sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/24—Post -processing devices

Definitions

  • the invention relates to a device and a method for further processing successive, sequentially printed printed sheets.
  • the apparatus has a conveyor for transporting the signatures in a conveying direction, a folding table arranged in a downstream region of the conveyor for receiving the printing sheets, a folding blade arranged vertically spaced from the folding table, a pair of folding rollers arranged on a side of the folding table opposite the folding table with an intermediate formed therebetween Falzwzwaltspalt, at least one arranged above the folding table and in the upstream region hold-down for pressing down a trailing edge of a folding table to be positioned sheet in the direction of the folding table, wherein a leading edge of a subsequent sheet is compared with the trailing edge of the positioned on the folding table printed sheet fed, and a machine control system operatively connected to the folding blade and the at least one hold-down device.
  • the successive, sequentially printed sheets are transported by the conveyor in the conveying direction to the arranged in the downstream region of the conveyor fold table and there by the latter, wherein the vertically spaced from the folding table folding blade and arranged on a side opposite the folding blade side of the folding table arranged with pair of folding rolls the interleaved Falzwalzenspalt cooperate to fold the sheet and wherein the trailing edge of a leading, to be positioned on the folding press sheet by means of at least one hold-down in the direction of the folding table and increases the leading edge of the subsequent sheet relative to the trailing edge of the leading, positioned on the folding press sheet is supplied and wherein the hold-down and the folding blade are controlled by a machine control.
  • the sequentially printed printing sheets can be unfolded and / or folded printed sheets, which are fed inline, ie directly or indirectly, subsequently to a digital printing press.
  • the supply is also possible offline, i. starting from an intermediately stored, sequentially printed material web, from which subsequently printed sheets are separated and then possibly folded or also from an intermediate store with unfolded and / or folded printed sheets.
  • the image is transferred directly from a computer to the press without the use of static printing forms.
  • the material web can, depending on the intended folding scheme in the predetermined order of the finished printed product, i. be printed sequentially. In this way, relatively small quantities can be realized up to a single printed product.
  • conventional printing methods such as offset printing, for example, very often there are consecutive printed sheets with different properties, such as the print itself, the number of printed pages per printed sheet and its respective format.
  • the transport speed of the meantime separated from the web or even in the digital printing press individually printed sheet be reduced by one or more folds with known longitudinal and / or Querfalzvorraumen.
  • folding on the one hand facilitates gentle further processing of the printed sheets, each folding process potentially leads to an undesired, larger number of blank pages. This can be avoided by using pre-unfolded sheets.
  • this increases the transport speed, which, depending on the further processing devices used, results in a high number of cycles and, in turn, makes careful further processing difficult and can lead to quality problems.
  • an apparatus and a method for in-line processing of a paper web sequentially printed by a digital printing machine are known.
  • the printed paper web first passes through a perforating and cutting station.
  • the printed sheets separated there are individually folded one or more times with transverse and longitudinal folding devices. After folding, the later forming a common book block sheet are combined in a collapsing scale before they are stacked in a subsequent stacking device to a book block and glued. Thereafter, the book blocks are transported for further processing.
  • the EP2502862 A1 discloses an apparatus and a method for processing printed sheets with different formats, which also previously from a printed in a digital press material web have been separated.
  • the device has at least two collecting drums arranged one above the other for successive printed sheets of different format.
  • downstream of the collecting drums for example by merging two printed sheets of different format with a third printed sheet, a partial stack of three printed sheets is produced, which can then be connected to a further partial stack to form a printed product.
  • the partial stacks can be longitudinally and / or transversely folded downstream of their training.
  • the transport speed of the partial stacks can advantageously be reduced in the downstream region of the pressure-further processing device in the case of this solution.
  • this requires a relatively complex drive of the two collecting cylinders, for example with a coupling gear or two matched to each other, separate drives. A reduction in the number of blank pages is not disclosed.
  • the device has in each case one connected to a compressed air source and a control unit compressed air device with a plurality of outlet openings for compressed air.
  • the leading sheet In order to avoid a collision between the trailing edge of a leading sheet with the leading edge of a trailing sheet during longitudinal folding, the leading sheet must always be fed out of the folding rollers or below the level of the folding table before the trailing sheet can be fed. Even with these solutions, however, only successive individual sheets can be folded.
  • a folding machine with a Schwertfalzstation for folding successive, single sheet with at least one lowered and raised folding blade and arranged below the folding blade Falzwalzenzip known.
  • the folding blade has a mechanical sword blade as well as a directly upstream and in extension of this arranged pneumatic sword blade, the latter having at least one nozzle for generating blast air.
  • a downstream mechanical stop for braking the leading edge of imported into the Schwertfalzstation sheet, an upstream pneumatic holddown for the trailing edge of this sheet and a further upstream guide member for lifting a subsequent sheet at the inlet to the Schwertfalzstation are arranged.
  • the sheets lie on rotating conveyor belts and are transported with these through the folding machine.
  • the Schwertfalzstation be successively supplied in accordance with the upcoming production orders sheet and each folded longitudinally by interaction of the folding blade with the folding rollers.
  • the so folded sheets are finally transported away for further processing down.
  • a hold-down force is applied to the trailing edge of the preceding sheet by means of the pneumatic blank.
  • the subsequent signature is raised by means of the guide element at its front edge. The combination of hold down and lift can prevent collision between these two press sheets.
  • the air pulse of the pneumatic blank holder in combination with conveyor belt air on both sides and above the folding table arranged pneumatic hold-down elements or in combination with corresponding mechanical hold-down elements that the sheet is pressed by friction to the conveyor belts, while their speed absorbs and thus transported defined to the stop.
  • this folding machine is provided only for relatively low transport speeds. Further increases in performance are therefore hardly possible.
  • the stop is only suitable for low transport speeds, because the striking sheet on this sheet could be injured at a high transport speed and / or jump back from the attack.
  • this folding machine is only suitable for folding successive individual sheets.
  • the EP3002240 A1 relates to a device for braking and positioning a printed example, for example by means of a digital printing press sheet in a processing machine and a method for operating such a device.
  • This allows individual, a large transport speed having printed sheet without risk of injury in a very short time exact position, stable and completely decelerated.
  • a mechanical folding blade is used, to which each signature is fed in the same plane in which it is positioned before the folding process.
  • the previous signature In order to be able to position a subsequent signature on the folding table, the previous signature must be drawn off the folding table so far that its trailing ends are below the feed level of the subsequent signature. This results in a relatively high take-off speed of the individual printing sheets from the folding table and into the folding roller pair.
  • the object of the invention was therefore to provide a simple and inexpensive device and a corresponding method for further processing by means of a digital printing machine sequentially printed sheet, the transport speed of the sheet reduced and yet improved performance can be achieved.
  • gentle further processing of the printed sheets is to be made possible, thereby avoiding quality problems and achieving a potential reduction in the number of blank pages in the finished printed product.
  • the at least one hold-down device of the device according to the invention has at least one mechanical brake element acting on its upper side in the region of the trailing edge of the printing sheet to be positioned on the folding table for this printed sheet.
  • the folding blade is designed to be stationary and has a compressed air device connected to a first compressed air source with at least one directed to the Falzwalzenspalt outlet opening for initiating the folding of the printed sheets used compressed air.
  • the folding table forms a collecting device for at least two successive printed sheets.
  • at least one sensor operatively connected to the machine controller for detecting the printed sheet conveyed with the conveyor is arranged.
  • At least two consecutive printed sheets forming a common stack are collected on the collecting device of the folding table and the stack is added together folded a printed product.
  • a leading, auf dominder on the folding table print sheet is braked in the region of its trailing edge at its top by contact with the mechanical brake element.
  • the folding of the stack is triggered by the action of supplied from the first compressed air source of compressed air from the at least one outlet opening of the fixed folding blade on the stack.
  • a printed sheet conveyed with the conveyor is detected with the at least one sensor operatively connected to the machine control and the machine control calculates from the at least one sensor information corresponding control signals for pressing down the trailing edge of the leading sheet, its braking and pressing the folding blade and finally triggers the depression, the braking process and the folding process.
  • a stop for leading edges of the printing sheet to be collected on the folding table is arranged in the region of the folding table. Accordingly, in one embodiment of the method according to the invention, the leading edges of the printed sheets to be collected on the folding table are conveyed against a stop arranged in the region of the folding table. In this way, an improved alignment of the printed sheets of the stack and thus improved folding quality can be achieved.
  • the stop is designed to be displaceable in and against the conveying direction of the printing sheet.
  • the stop is accordingly displaced in or against the conveying direction of the printed sheet with a changed format of the printing sheet to be collected on the folding table.
  • the at least one hold-down device is connected to the first compressed air source or to a second compressed air source and has at least one outlet opening for compressed air directed towards the upper side of the press sheet to be positioned on the folding table in the region of its trailing edge.
  • the at least one mechanical brake element is arranged between the at least one first outlet opening of the hold-down device and the folding table.
  • the at least a hold-down device supplied with compressed air from the first compressed air source or from a second compressed air source and the compressed air is discharged through at least one outlet opening of the blank holder directed to the top of the sheet to be positioned on the folding table in the region of its trailing edge.
  • the exiting from the at least one first outlet opening of the blank holder compressed air is passed to the at least one mechanical brake element, thereby deflected in the direction of the folding table and brought into contact with the folding table to be positioned or supplied to the stack sheet.
  • the latter has at least two separate hold-downs on which the printed sheets in each case are arranged transversely to the conveying direction at a lateral distance from an upstream end of the compressed air device of the folding blade.
  • the compressed air is discharged via the at least two separate hold-down devices. In this way, the sheets can advantageously be held evenly and without the risk of twisting and slowed down.
  • the lateral spacing of the at least two separate hold-downs is adjustable.
  • the lateral spacing of the at least two separate hold-downs is correspondingly reduced or increased in a subsequent work order with a smaller or larger size of printed sheet to be processed.
  • the hold-down can be adjusted according to the format of the sheet to be collected on the folding table. It can thus be pressed down the entire trailing edge of the respective sheet in the direction of folding table, so that no areas of this sheet can collide with a trailing sheet.
  • the compressed air supplied by the first compressed-air source is introduced into the segments of the folding blade, with compressed air only being applied to the segments arranged in the region of the stack by means of the machine control. Due to the formation of separate segments, these can be driven separately and be acted upon in accordance with the format of the resting on the folding table stack with compressed air. In addition, turbulence of compressed air in the space between the folding blade and the stack to be folded can be prevented and thus impaired the correct alignment of the top sheet of the stack can be avoided.
  • the conveyor has a lower belt and an upper belt cooperating therewith for transporting the printed sheets.
  • the printed sheets are transported to the folding table in a conveying gap formed between the lower belt and the upper belt of the conveyor. As a result, the sheets are clamped during their transport in the conveying gap and can thus be accelerated or decelerated without slipping.
  • both the lower band and the upper band extend into the region of the folding table.
  • the printed sheets with the lower belt and the upper belt of the conveyor are transported into the region of the folding table.
  • the lower belt can transport the bottom sheet of the stack to be formed against the stop and position it correctly while the upper belt can guide or direct the sheets on the folding table.
  • only one drive for the upper band and lower band is advantageous in each case required.
  • the lower belt and / or the upper belt are converging in the region of the folding table educated.
  • the guidance of the printed sheets in the region of the folding table is additionally supported by the converging formation of the lower band and / or the upper band.
  • At least two sensors operatively connected to the machine control system for detecting the printed sheets conveyed with the conveyor are arranged transversely to the conveying direction in the region of the conveyor.
  • the printed sheets are detected in the region of the conveyor by means of the at least two sensors.
  • the folding roller pair and the folding blade are arranged longitudinally or transversely to the conveying direction.
  • the stack can be folded advantageously both longitudinally and transversely to the conveying direction of the printed sheet transported with the conveyor. If the folding roller pair and the folding blade are arranged transversely to the conveying direction, this results in a parallel arrangement of the hold-down.
  • the Falzwalzenspalt on a gap width which is designed to be adjustable.
  • the gap width is correspondingly adjusted in a subsequent work order with different thickness of the stack to be folded.
  • the Falzwalzenspalt can be advantageously adapted to work orders with different stacking thickness. This is done by a corresponding relative movement of the bearing points of the folding rollers.
  • the folding rollers can also be sprung only and thereby compensate for different thicknesses of the stack to be folded in certain tolerance ranges.
  • Fig. 1 shows a schematic side view of an inventive device 1 for further processing by means of a digital printing machine, not shown, sequentially printed sheet 2 1 ... n according to a first embodiment. As shown, the printed sheets 2 1 ... n can not be folded, folded one or more times and fed to the device 1 in any order.
  • the device 1 has a conveyor 3 for transporting the printing sheets 2 1...
  • N here the printing sheets 2 4 , 2 5 , 2 6 and 2 n , in a conveying direction 4, a folding table 6 arranged in a downstream region 5 of the conveyor 3 , a folding blade 7 arranged centrally above the folding table 6 and transversely to the conveying direction 4, as well as a folding roller pair 8 arranged below the folding table 6 with a first folding roller 9 and a second folding roller 10 arranged parallel thereto.
  • the folding blade 7 has a holding element 7 'and is arranged at this height adjustable ( Fig. 2 ).
  • the folding blade 7 can also be arranged below the folding roller pair 8 and accordingly above the folding table 6 if necessary. In general, therefore, an arrangement of the folding blade 7 vertically spaced from the folding table 6 and an arrangement of the folding roller pair 8 also vertically spaced from the folding table 6, but on the folding blade 7 opposite side.
  • the conveyor 3 has a plurality of mutually parallel and spaced apart transversely to the transport direction, not shown individual bands existing sub-belt 11 and a parallel to this running and cooperating with the lower belt 11 upper belt 12, between which a common conveying gap 13 for the sheet 2 1. ..n is formed. Both the lower band 11 and the upper band 12 extend into the region of the folding table 6.
  • the lower belt 11 and the upper belt 12 may also be designed to taper towards one another, so that a conveying gap 13 'which narrows continuously in the region of the folding table 6 results ( Fig. 3 ).
  • the folding blade 7 is designed to be stationary and has a compressed air device 15 connected to a first compressed air source 14 with a plurality of segments 17 arranged one after the other in the conveying direction 4 and to be supplied separately with compressed air 16. Fig. 1 ). Each segment 17 has at least one outlet opening 18 for the compressed air 16 aligned with the folding table 6.
  • the folding table 6 forms a collecting device 6 'for successive printing sheets 2 1 ... n .
  • a stop 19 for leading edges 2 1 '... n' resting on the folding table 6, collected sheet 2 1 ... n , here the sheet 2 1 , 2 2 and 2 3 , arranged and accordingly the format of this sheet 2 1 ... n adjustable formed.
  • the stop 19 is connected to a first adjusting device 20.
  • the two folding rollers 9, 10 each have an axis of rotation 9 ', 10', which are aligned parallel or nearly parallel to each other and parallel to the folding table 6.
  • the folding rollers 9, 10 are received at both ends 21, 22 in each case in a bearing 23, 24 ( Fig. 2 ). They are arranged at a distance from one another transversely to the conveying direction 4 and thus have a folding roller gap 25 formed between them for receiving and transferring to folding printed sheets 2 1... N.
  • the orientation of the axes of rotation 9 ', 10' of the folding rollers 9, 10 to each other and thus the formation of Falzwalzenspaltes 25 may depending on the thickness of the resting on the folding table 6, collected sheet 2 1 ...
  • the folding table 6 has a recess 6 "formed above the folding roller gap 25 for the passage of the printed sheets 2 1 ... n to be folded, and the folding rollers 9, 10 are driven in opposite directions and connected to a drive motor 26 (FIG. Fig. 1 ).
  • a second adjusting device 27 for changing the mutual distance of the folding rollers 9, 10, that is arranged for adjusting the Falzwalzenspalts 25 and of the gap width 25 '.
  • the bearings 23, 24 may be spring-mounted.
  • a plurality of hold-down devices 29 are spaced transversely to the conveying direction 4 above the folding table 6 and in its upstream region 28 arranged from each other.
  • the hold-down 29 are arranged transversely to the conveying direction 4 of the sheet 2 1 ... n in a lateral distance 30 from an upstream end 15 'of the compressed air device 15 of the folding blade 7.
  • This lateral distance 30 is adjustable by means of a third, here each indicated only by a double arrow actuator 31.
  • the hold-down 29 are connected to a second compressed air source 14 '. They each have at least one on the folding table 6 or on the top 2 1 '"...
  • the device 1 has a machine control 35 operatively connected to the folding blade 7 and the hold-down devices 29. For controlling the folding blade 7 and the hold-down 29 corresponding control lines 36 are provided with solenoid valves 37.
  • a sensor 38 operatively connected to the machine control 35 is arranged for detecting the printed sheets 2 1... N transported with the conveyor 3.
  • the sensor 38 is connected to the machine controller 35 via a data line 39.
  • FIG. 2 shows a simplified, schematic front view of the device 1 according to Fig. 1 , represented opposite to the conveying direction 4 of the sheet 2 1 ... n .
  • the front edge 2 1 '... n' of a subsequent printing sheet 2 1 ... n ie in Fig. 1 of the printing sheet 2 4 , opposite the trailing edge 2 1 "... n" of the printing sheet 2 1... n , which is positioned on the folding table 6, ie in FIG Fig. 1 of the printing sheet 2 3 , increased supplied.
  • This can be done by means of a fixed or adjustable stage 40 shown here in the lower band 11 (FIG. Fig. 1 . Fig. 2 ), by an unillustrated active element or a ramp, also not shown, which in each case the leading edge 2 1 '... n' of the subsequent printing sheet 2 1 ... n opposite the trailing edge 2 1 "... n" of the Falztisch 6 positioned printed sheet 2 1 ... n raises, be achieved.
  • this stack 41 is subsequently folded by means of the folding blade 7 and the folding roller pair 8 and in this way a folded printed product 41 'is produced.
  • the length of the overlap 42 is about 1 to 20% of the length of a printing sheet 2 1... N of the stack 41.
  • the printed product 41 'formed by folding the stack 41 is formed by means of a subsequent to the Falzwalzencru 8, for example, from individual bands 43 Transport device 44 conveyed away for temporary storage or further processing. If only the stop 19 is adapted to the format of the printing sheet 2 1... N forming a common stack 41, the removal of the printed product 41 'takes place off-center of the transport device 43, as shown in FIG Fig. 3 is shown. If, in contrast to the stop 19, the step 40 and the hold-down 29 are adjusted accordingly in or counter to the conveying direction 4, the printed product 41 'can be conveyed away centrally on the conveying device 43.
  • the stop 19 can be adjusted by means of the first adjusting device 20 in or against the conveying direction 4 that these sheets 2 1. ..n also successively on the collecting device 6 'forming folding table 6 are superimposed so that a stack 41 of this sheet 2 1 ... n is formed. In addition, a corresponding adjustment of the stage 40 and the blank holder 29 in or against the conveying direction 4 can take place.
  • the vertical distance of the folding blade Due to the height-adjustable arrangement of the folding blade 7 on the support member 7 'can be adjusted to the folding table 6 in a subsequent job with different thickness of the stack to be folded 41 of sheet 2 1 ... n, the vertical distance of the folding blade. This can advantageously be done to adapt this vertical distance to the number of sheets to be folded and also to the paper.
  • the transport speed of the printing sheet 2 1... N opposite the single-folded printing sheet of the prior art can be reduced in a simple and cost-effective manner.
  • further processing devices can thus a lower number of cycles can be realized, which allows gentle further processing while avoiding quality problems.
  • Due to the easy way possible feeding previously unfolded sheet 2 1 ... n to the folding table 6 can compared to the known prior art, the number of blank pages in the stack 41 and thus in the printed product 41 'can be reduced in a simple manner, without increasing the transport speed. This can avoid quality problems in the devices used for further processing.
  • FIG. 3 shows a second embodiment, with an inventive device 1 'in which both the lower belt 11 and the upper belt 12 of the conveyor 3 in each case two in the conveying direction 4 successively arranged conveyor belts 11', 11 ", 12 ', 12".
  • the folding table 6, the folding blade 7 and the folding roller pair 8 of the device 1 ' can advantageously be separated from the conveyor 3, ie from the feed of the printed sheets 2 1...
  • the compressed air device 15 is formed here in contrast to the first embodiment is not segmented, whereby the device 1 'can be made even easier and cheaper.
  • the hold 29 are connected to the first compressed air source 14, so that advantageously no second compressed air source is required.
  • the upper belt 12 in the region of the folding table 6 on the lower belt 11 tapering, so formed with a converging in the conveying direction 4 conveying gap 13 ', which has an additional support the leadership of the sheet 2 1 ... n in the folding table result.
  • the lower belt 11 on the upper belt 12 or both belts 11, 12 run towards each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP19159004.1A 2018-02-28 2019-02-25 Dispositif et procédé de traitement ultérieur séquentiel de feuilles imprimées Active EP3533609B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2412018 2018-02-28

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EP3533609A1 true EP3533609A1 (fr) 2019-09-04
EP3533609B1 EP3533609B1 (fr) 2021-06-02

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EP19159004.1A Active EP3533609B1 (fr) 2018-02-28 2019-02-25 Dispositif et procédé de traitement ultérieur séquentiel de feuilles imprimées

Country Status (5)

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US (1) US10800633B2 (fr)
EP (1) EP3533609B1 (fr)
JP (1) JP7316058B2 (fr)
CN (1) CN110203751B (fr)
ES (1) ES2881350T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022124182A1 (de) 2022-09-21 2024-03-21 Müller Martini Holding AG Dynamischer Nutzenwechsel

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Publication number Priority date Publication date Assignee Title
US10934119B2 (en) * 2018-02-28 2021-03-02 Mueller Martini Holding Ag Printing sheet brake
CN114953585B (zh) * 2022-06-08 2024-06-28 九国春武汉包装科技有限公司 一种自检型小盒模切一体装置

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EP2502862A1 (fr) 2011-03-24 2012-09-26 Hunkeler AG Procédé et dispositif de traitement de feuilles de différents formats
EP2727869A1 (fr) 2012-10-30 2014-05-07 Müller Martini Holding AG Dispositif et procédé destinés à plier des feuilles imprimées
EP2727868A1 (fr) 2012-10-30 2014-05-07 Müller Martini Holding AG Dispositif et procédé destinés à plier des feuilles imprimées
EP2818331A2 (fr) 2013-06-24 2014-12-31 TECNAU S.r.l. Procédé et système pour la production de livres par impression numérique à partir d'une bande de papier continue et livre correspondant
EP3002241A1 (fr) * 2014-10-01 2016-04-06 Müller Martini Holding AG Dispositif d'arret de tirage oblique pour une feuille imprimee
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JPS5313328A (en) 1976-06-21 1978-02-06 Uehigashi Tamotsu Numeral selector for electronic register or the like
JPH07237812A (ja) * 1994-02-25 1995-09-12 Toshiba Mach Co Ltd ローラ間隙間調整装置
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DE102005062843B3 (de) * 2005-12-27 2007-04-19 Maschinenbau Oppenweiler Binder Gmbh & Co. Kg Falzvorrichtung mit feststehendem Falzschwert
JP2010030698A (ja) 2008-07-25 2010-02-12 Canon Inc シート処理装置及び画像形成装置
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WO1995018057A1 (fr) * 1993-12-24 1995-07-06 Koenig Und Bauer-Albert Aktiengesellschaft Procede et dispositif permettant de façonner un pli longitudinal
EP2502862A1 (fr) 2011-03-24 2012-09-26 Hunkeler AG Procédé et dispositif de traitement de feuilles de différents formats
EP2727869A1 (fr) 2012-10-30 2014-05-07 Müller Martini Holding AG Dispositif et procédé destinés à plier des feuilles imprimées
EP2727868A1 (fr) 2012-10-30 2014-05-07 Müller Martini Holding AG Dispositif et procédé destinés à plier des feuilles imprimées
EP2818331A2 (fr) 2013-06-24 2014-12-31 TECNAU S.r.l. Procédé et système pour la production de livres par impression numérique à partir d'une bande de papier continue et livre correspondant
EP3002241A1 (fr) * 2014-10-01 2016-04-06 Müller Martini Holding AG Dispositif d'arret de tirage oblique pour une feuille imprimee
EP3002240A1 (fr) 2014-10-01 2016-04-06 Müller Martini Holding AG Dispositif d'arret de feuille d'impression
DE102016203043A1 (de) 2016-02-26 2017-08-31 Heidelberger Druckmaschinen Ag Verfahren zum Falzen von Bogen und Falzmaschine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022124182A1 (de) 2022-09-21 2024-03-21 Müller Martini Holding AG Dynamischer Nutzenwechsel
EP4349610A2 (fr) 2022-09-21 2024-04-10 Müller Martini Holding AG Changement dynamique d'utilité

Also Published As

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US20190263622A1 (en) 2019-08-29
US10800633B2 (en) 2020-10-13
CN110203751A (zh) 2019-09-06
EP3533609B1 (fr) 2021-06-02
ES2881350T3 (es) 2021-11-29
CN110203751B (zh) 2023-06-13
JP7316058B2 (ja) 2023-07-27
JP2019151489A (ja) 2019-09-12

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