EP2343260B1 - Verfahren zum Betrieb eines Schwertfalzwerks und ein Schwertfalzwerk - Google Patents

Verfahren zum Betrieb eines Schwertfalzwerks und ein Schwertfalzwerk Download PDF

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Publication number
EP2343260B1
EP2343260B1 EP11305013.2A EP11305013A EP2343260B1 EP 2343260 B1 EP2343260 B1 EP 2343260B1 EP 11305013 A EP11305013 A EP 11305013A EP 2343260 B1 EP2343260 B1 EP 2343260B1
Authority
EP
European Patent Office
Prior art keywords
production
folding
rollers
distance
folding rollers
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.)
Not-in-force
Application number
EP11305013.2A
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English (en)
French (fr)
Other versions
EP2343260A1 (de
Inventor
Thierry Vauchelle
Franck Chagnon
Jérôme PERES
Eric Pierda
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.)
Goss International Montataire SA
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Goss International Montataire SA
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.)
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Publication date
Application filed by Goss International Montataire SA filed Critical Goss International Montataire SA
Publication of EP2343260A1 publication Critical patent/EP2343260A1/de
Application granted granted Critical
Publication of EP2343260B1 publication Critical patent/EP2343260B1/de
Not-in-force legal-status Critical Current
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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
    • 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
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/22—Distance
    • B65H2511/224—Nip between rollers, between belts or between rollers and belts

Definitions

  • the present invention relates to a method for controlling a square-folding device of a rotary press for folding flat products from a continuous web, comprising a pair of parallel folding rollers defining between them a gap, a movable folding blade for forcing a flat product into the gap, a means for adjusting the spacing between the two folding rollers and a control device of the adjusting means adapted to control the adjusting means in a production mode for maintain a proper spacing during production.
  • EP 2 112 111 discloses a method of controlling a right-angle fold device according to the preamble of claim 1.
  • the object of the present invention is to provide a method for controlling a right-angle crease device making it possible to limit the risk of jamming.
  • the invention relates to a control method according to claim 1.
  • Another object of the invention is to provide a right-angle folding device for a rotary press for folding flat products, comprising a pair of parallel folding rollers defining between them a gap, a movable folding blade adapted to force a flat product in the gap, an automated gap setting means adapted to adjust the spacing between the two folding rollers according to a thickness value of the flat product, and a control device of the adjusting means adapted and programmed to implement a method according to the invention.
  • FIG. 1 On the figure 1 is represented a folder according to the invention, designated by the general reference 2.
  • the folder 2 is adapted to receive a continuous strip of material, or several continuous strips of material superimposed, forming a continuous strip 4 of flat products 6, to fold the continuous strip 4, and to separate and fold the flat products 6.
  • the folder 2 is part of a printing press, including rotary, not shown as a whole on the figure 1 .
  • the elements of the folder 2 will be described in the order in which the continuous strip 4 of flat products 6 passes through this folder 2.
  • the folder 2 comprises a longitudinal folding cone 8 with two pinch rollers 10 adapted to produce a first fold, a longitudinal fold, of the continuous strip 4 of flat products 6.
  • the folder 2 comprises motorized call rollers disposed downstream of the cone 8 to drive the continuous band 4 by maintaining it in tension.
  • a first pair of rollers 12 is located immediately downstream of the pinch rollers 10 and controls the tension and the call of the continuous strip 4 on the cone 8.
  • the folder 2 may comprise a pair of transverse perforation rollers 14 and a pair of longitudinal perforation rollers 16.
  • the transverse perforation rollers 14 facilitate the formation of a second fold, a transverse fold
  • the longitudinal perforation rollers 16 facilitate the formation of a third fold, a fold of square.
  • the perforation rollers 14, 16 can be activated or deactivated depending on the type of production to be carried out.
  • a second pair of rollers 18 located downstream of the perforation rollers 14, 16 controls the tension and the call of the continuous band 4 at the level of the perforation rollers 14, 16.
  • the folder 2 comprises a cutting cylinder 20 equipped with a saw frame and adapted to cut the continuous strip 4 transversely and separate it into a succession of flat products 6 separated.
  • the flat products 6 are then driven by a transfer cylinder 22 together with a bank of cords 24 which route them to a set of folding cylinders 26 which produces the second fold, the transverse fold.
  • the folder 2 Downstream of the set of folding rolls 26, the folder 2 comprises a right-angle folding device 28.
  • This right-angle folding device 28 is adapted to make a square fold of the flat product 6.
  • the angle fold device 28 is shown in more detail on the figure 2 . It comprises a table 29 for receiving the flat products 6 provided with a slot, a folding blade 30, a pair of parallel folding rollers 32 defining between them a gap 34 facing the slot of the receiving table 29 and a adjusting means 36.
  • the folding blade 30 is movable in alternating translation through the slot of the receiving table 29, to force flat products 6 received on the reception table 29 through the slot and in the gap 34 between the two rollers.
  • the folding rollers 32 are motorized to drive the flat product 6 between them.
  • the folding blade 30 and the folding rollers 32 cooperate to form the square fold.
  • the adjusting means 36 has the function of modifying the spacing between the folding rollers 32. It comprises two adjustment assemblies 37 each disposed at one end of the folding rollers 32. On the figure 2 only a set of adjustment 37 is visible and will be described later. The other set of adjustment 37 is analogous and the adjustment sets 37 are synchronized.
  • the adjustment assembly 37 shown on the figure 2 comprises a motor 38, a screw 40, a spring 42 and a pair of rotating arms 44.
  • the arms 44 are rotatably mounted about respective parallel axes A.
  • Each folding roller 32 is rotatably mounted at one end of a respective arm 44, about an axis B parallel to the axis A of rotation of the arm 44.
  • the rotation of the arms 44 causes a change in the spacing between the arms. folding rollers 32.
  • the spring 42 is disposed between the ends of the arms 44 opposite to the folding rollers 32 and urges them in the direction of approaching the folding rollers 32.
  • the screw 40 is provided with nuts 45 serving as a rotational stop for the arms 44 in the direction of approaching the folding rollers 32.
  • the spring 42 biases the arms 44 in abutment against the nuts 45.
  • the position of the nuts 45 defines the spacing between the folding rollers 32.
  • the rotation of the screw 40 changes the spacing between the nuts 45 and thus the adjustment of the spacing between the folding rollers 32.
  • the rotation of the screw 40 also modifies the compression of the spring 42.
  • the motor 38 is coupled to the screw 40 so that the motor 38 can drive the screw 40 to modify the position of the nuts 45 and thus the adjustment of the spacing between the folding rollers 32.
  • the folding blade 30 forces the flat product 6 between the motorized folding rollers 32 which drive the flat product 6 between them by forming a square fold.
  • the passage of the flat product 6 between the folding rollers 32 is carried out against the spring 42 which opposes the spacing of the folding rollers 32.
  • the pressure exerted by the folding rollers 32 therefore depends on the adjustment of their spacing.
  • the folder 2 further comprises a control device 46 adapted to control the adjusting means 36.
  • This control device 46 comprises a first pressure sensor 48 at the first pair of call rollers 12 and / or at the level of the second pair of rollers 18, a second pressure sensor 50 at the folding rollers 32, a processor 52 and a man-machine interface 54.
  • the first and second pressure sensors 48, 50 are adapted to measure the pressure applied on the continuous strip 4 by the first and / or second pair of rollers 12, 18 and on the flat product 6 by the folding rollers 32 , respectively.
  • the processor 52 is programmed to control and regulate the adjustment means 36 from the measurements made.
  • the human-machine interface 54 allows a user to specify manual control instructions to the controller 46.
  • the continuous strip 4 is folded longitudinally at the cone 8, is then perforated and cut into a plurality of flat products 6 which are folded transversely relative to the first fold.
  • the flat products 6 then pass into the square fold device 28 where they are folded a third time along a line parallel to the first fold.
  • a slight change in the thickness of the continuous strip 4 at the cone 8 results in a change in the thickness four times greater at the folding rollers 32 of the angle fold device 28. It is desirable to be able to adjust the gap 34 between the two folding rollers 32 according to the thickness of the continuous strip 4 in order to avoid a jamming of the square fold device 28 at the level of the folding rollers 32, for example as a result of too much spacing does not allow the folding rollers 32 to properly swallow the flat products 6 engaged between the folding rollers 32 by the folding blade 30.
  • the folder 2 implements a control method which is controlled by the control device 46.
  • the control device 46 controls the adjustment means 36 selectively in a production start mode and in a production mode.
  • the mode of production is implemented in steady state or permanent production.
  • the first and second pressure sensors 48, 50 measure the pressure applied on the continuous strip 4 exerted by the first and / or second pair of rollers 12, 18 and on the flat product 6 exerted by the folding rollers 32, respectively.
  • the measured pressure values are transmitted to the processor 52 which determines a thickness value of the continuous strip 4 at the first and / or second pair of rollers 12, 18 and the spacing between the two folding rollers 32.
  • the processor 52 determines whether the spacing between the two folding rollers 32 is too large or too small relative to the thickness of the continuous strip 4 at the level of the first and / or second pair of rollers 12 18 and controls the adjusting means 36 so that the distance between the two folding rollers 32 is adjusted according to the thickness of the continuous strip 4 at the level of the first and / or second pair of rollers. 12, 18.
  • the production method makes it possible to automatically regulate the spacing between the two folding rollers 32 without human intervention and is adapted for continuous operation of the folder 2.
  • control device 46 does not perform a pressure measurement, but a user chooses, for example, from a table of values pre-recorded thickness, the thickness value of the corresponding flat product 6, by means of the man-machine interface 54.
  • the control device 46 controls the adjustment means 36 so that the distance between the two rolls of folding 32 is adjusted according to the thickness value specified by the user.
  • the production start mode is implemented transiently at the start of each new production.
  • a production is defined in particular by the quality of paper (format, grammage, thickness) and by the processing of the continuous strip 4 and the flat product 6 (number of superimposed bands, number and positions of the folds, production accumulated and not accumulated, number of pages ).
  • the modification of a production parameter modifies the characteristics of the flat products 6 at the angle fold device 28.
  • New production means a production beginning after a change in production resulting from a change in the production parameters or the production of a splice, or the restart of a production after a stoppage of the rotary press, by example after a tape break.
  • control device 46 is configured to maintain between the folding rollers 32, in production mode, a spacing adapted to the new production, since it receives the information relating to the new production. and / or the measurements for the regulation of this spacing taken on the continuous strip 4 corresponding to the new production which begins to circulate in the folder 2.
  • control device 46 controls the spacing of the folding rollers 32 to a determined fixed reference value.
  • the two folding rollers 32 assume a determined position with a reference gap regardless of a pressure measurement exerted by the call rollers 12, 18 or a manually specified gap value for the second production.
  • the production start mode is maintained for a specified duration. This duration is preferably chosen so that the production mode, which follows the production start mode, only starts when the first flat product 6 of the new production arrives or is passed at the level of the folding rollers 32.
  • the duration typically corresponds to the passage time of about 200 flat products 6 at the folding rollers 32.
  • the spacing between the two folding rollers 32 is shown as a function of time.
  • the bender 2 processes a first production.
  • the spacing between the two folding rollers 32 is adapted to the flat products 6 of this first production and the control device 46 is maintained in the production mode.
  • production is changed and a second production is made, and between time t 1 and time t 2 control device 46 is maintained in the production start mode.
  • the gap corresponds to the reference gap E 0 .
  • the control device 46 resumes the production mode and the spacing is adjusted to the thickness of the flat product 6 of the second production.
  • the thickness of the flat product 6 is determined either by the pressure measurement or manually by means of the man-machine interface 54.
  • the reference gap is chosen to allow the right-angle fold device 28 to swallow the flat products 6 of the production preceding the new production, despite the changes in treatment (number of pages, thickness, production accumulated or not accumulated) .
  • the reference gap may be less than the gap required for the second production.
  • the reference gauge for the second production may be the distance from the first production.
  • the reference gap is a minimum gap for the folding rollers 32, corresponding to the minimum gap setting between the folding rollers 32.
  • This minimum gap is for example about 0.1 mm.
  • the reference gap is not limited to a single reference gap value, but several reference gap values can be envisaged.
  • the reference gap value is adopted which is, among the different reference gap values, the most suitable for the thickness value of the flat product 6 of the production processed during the period. directly before this period of production start mode.
  • control method according to the invention is particularly advantageous in cases where the flat products 6 of the new production has a thickness greater than that of the flat products 6 of the previous production, so that the remainder of flat products 6 intended for the Previous production might not be swallowed properly between the folding rollers 32.

Claims (9)

  1. Verfahren zur Steuerung einer Winkelfalz-Vorrichtung (28) einer Rotationspresse zum Falzen von Flacherzeugnissen (6) aus einem kontinuierlichen Band (4), aufweisend ein Paar von parallelen Falzwalzen (32), welche zwischen einander einen Zwischenraum definieren (34), ein bewegbares Falzmesser (30) zum Zwingen eines Flacherzeugnis (6) in den Zwischenraum (34), ein Mittel zur Einstellung (36) des Abstands zwischen den beiden Falzwalzen (32) und eine Vorrichtung zur Steuerung (46) des Mittels zur Einstellung (36), welche geeignet ist, um das Mittel zur Einstellung (36) in einen Produktionsmodus zum Aufrechterhalten eines angemessenen Abstands während der Produktion zu steuern, wobei beim Start einer neuen Produktion die Vorrichtung zur Steuerung (46) durchführt einen Produktionsstartmodus, in welchem sie das Mittel zur Einstellung (36) des Abstands für die Einstellung des Abstands auf einen vorbestimmten Referenzwert steuert, dann den Produktionsmodus, in welchem sie das Mittel zur Einstellung (36) für einen Abstand steuert, der an die neue Produktion angepasst ist, dadurch gekennzeichnet, dass im Produktionsmodus die Vorrichtung zur Steuerung (46) das Mittel zur Einstellung (36) steuert in Abhängigkeit von einer Messung der Dicke des kontinuierlichen Bands (4) auf Höhe von Einzugrollen (12, 18) oder in Abhängigkeit von einer Messung des Drucks, der auf das kontinuierliche Band (4) aufgebracht wird durch Einzugrollen (12, 18) zum Antreiben des kontinuierlichen Bands (4).
  2. Verfahren zur Steuerung gemäß Anspruch 1, bei welchem der Referenzwert während einer vorbestimmten Zeitdauer aufrechterhalten wird, entsprechend beispielsweise dem Durchlauf von etwa 200 Flacherzeugnissen (6) zwischen den beiden Falzwalzen (32).
  3. Verfahren zur Steuerung gemäß Anspruch 1 oder 2, bei welchem der Referenzwert einem minimalen Abstand entspricht.
  4. Verfahren zur Steuerung gemäß Anspruch 1 oder 2, bei welchem der Referenzwert einem Abstand der vorhergehenden Produktion entspricht.
  5. Verfahren zur Steuerung gemäß Anspruch 1 oder 2, bei welchem der Referenzwert kleiner ist als der Wert des Abstands der neuen Produktion.
  6. Verfahren zur Steuerung gemäß irgendeinem der Ansprüche 1 bis 5, bei welchem der Produktionsstartmodus durchgeführt wird bei einem Wechsel der Produktion und/oder beim Wiederanfahren der Rotationspresse nach einem Halt.
  7. Verfahren zur Steuerung gemäß irgendeinem der Ansprüche 1 bis 6, bei welchem im Produktionsmodus die Vorrichtung zur Steuerung (46) das Mittel zur Einstellung (36) in Abhängigkeit von einer Messung der Dicke der Flacherzeugnisse (6) auf Höhe der Falzwalzen (32) steuert.
  8. Verfahren zur Steuerung gemäß irgendeinem der Ansprüche 1 bis 7, bei welchem im Produktionsmodus die Vorrichtung zur Steuerung (46) das Mittel zur Einstellung (36) in Abhängigkeit von einer Messung des Drucks steuert, der von den Falzwalzen (32) auf die Flacherzeugnisse (6) aufgebracht wird.
  9. Winkelfalz-Vorrichtung (28) einer Rotationspresse zum Falzen von Flacherzeugnissen (6), aufweisend ein Paar von parallelen Falzwalzen (32), welche zwischen einander einen Zwischenraum definieren (34), ein bewegbares Falzmesser (30), welches eingerichtet ist, um ein Flacherzeugnis (6) in den Zwischenraum (34) zu zwingen, ein automatisiertes Mittel zur Einstellung (36) des Abstands, das eingerichtet ist zum Einstellen des Abstands zwischen den beiden Falzwalzen (32) in Abhängigkeit von einem Wert der Dicke des Flacherzeugnisses (6), und eine Vorrichtung zur Steuerung (46) des Mittels zur Einstellung (36), die eingerichtet und programmiert ist zum Durchführen eines Verfahrens gemäß irgendeinem der vorhergehenden Ansprüche.
EP11305013.2A 2010-01-08 2011-01-07 Verfahren zum Betrieb eines Schwertfalzwerks und ein Schwertfalzwerk Not-in-force EP2343260B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1050115A FR2955094B1 (fr) 2010-01-08 2010-01-08 Procede de commande d'un dispositif de pli d'equerre et dispositif de pli d'equerre

Publications (2)

Publication Number Publication Date
EP2343260A1 EP2343260A1 (de) 2011-07-13
EP2343260B1 true EP2343260B1 (de) 2013-07-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP11305013.2A Not-in-force EP2343260B1 (de) 2010-01-08 2011-01-07 Verfahren zum Betrieb eines Schwertfalzwerks und ein Schwertfalzwerk

Country Status (5)

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US (1) US20110172074A1 (de)
EP (1) EP2343260B1 (de)
JP (1) JP2011140401A (de)
CN (1) CN102180378A (de)
FR (1) FR2955094B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5966497B2 (ja) * 2012-03-27 2016-08-10 大日本印刷株式会社 輪転印刷機のチョッパ装置
JP6223777B2 (ja) * 2012-10-30 2017-11-01 ミュラー・マルティニ・ホルディング・アクチエンゲゼルシヤフト 枚葉紙を折り畳むための装置及び方法
CN104340747B (zh) * 2013-08-08 2019-04-30 上海乔力雅洗衣器材有限公司 设有直刀式折叠机构的折叠机

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07237812A (ja) * 1994-02-25 1995-09-12 Toshiba Mach Co Ltd ローラ間隙間調整装置
US5937757A (en) * 1998-01-07 1999-08-17 Goss Graphic Systems, Inc. Gap adjusting device with pressure relief for a second fold roller
JP4227904B2 (ja) * 2004-02-03 2009-02-18 三菱重工業株式会社 印刷機の折り装置におけるローラ隙間調整装置およびローラ隙間調整方法
DE102004012930B4 (de) * 2004-03-17 2007-04-05 Man Roland Druckmaschinen Ag Druckmaschine mit einer Vorrichtung zum Messen eines zu falzenden Druckproduktes
JP2006312497A (ja) * 2005-05-06 2006-11-16 Tokyo Kikai Seisakusho Ltd 折機のローラー間隙自動調整装置
JP4277288B2 (ja) * 2006-11-28 2009-06-10 株式会社東京機械製作所 輪転機用チョッパー折り装置
JP2008195507A (ja) * 2007-02-14 2008-08-28 Mitsubishi Heavy Ind Ltd 印刷機の折り目加工用ローラの隙間調整装置及び方法
US20100101438A1 (en) * 2007-02-14 2010-04-29 Mitsubishi Heavy Industries, Ltd. Apparatus and method for adjusting gap between creasing roller of printing press, and printing press
FR2917395B1 (fr) * 2007-06-12 2009-09-18 Goss Int Montataire Sa Table pour dispositif de pli d'equerre et dispositif de pli d'equerre correspondant.
JP2009280357A (ja) * 2008-05-22 2009-12-03 Mitsubishi Heavy Ind Ltd ローラの隙間調整装置及び方法

Also Published As

Publication number Publication date
FR2955094B1 (fr) 2012-05-11
EP2343260A1 (de) 2011-07-13
FR2955094A1 (fr) 2011-07-15
CN102180378A (zh) 2011-09-14
US20110172074A1 (en) 2011-07-14
JP2011140401A (ja) 2011-07-21

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