EP2437994B1 - Vorrichtung für den antrieb der faltarme einer zusammenfaltmaschine - Google Patents

Vorrichtung für den antrieb der faltarme einer zusammenfaltmaschine Download PDF

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Publication number
EP2437994B1
EP2437994B1 EP10742243.8A EP10742243A EP2437994B1 EP 2437994 B1 EP2437994 B1 EP 2437994B1 EP 10742243 A EP10742243 A EP 10742243A EP 2437994 B1 EP2437994 B1 EP 2437994B1
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EP
European Patent Office
Prior art keywords
motor
mechanical
motor means
folding
supplementary
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Not-in-force
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EP10742243.8A
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English (en)
French (fr)
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EP2437994A1 (de
Inventor
Simona Ricci
Andrea Bernacchi
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TISSUEWELL Srl
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TISSUEWELL Srl
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Publication of EP2437994A1 publication Critical patent/EP2437994A1/de
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    • 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
    • B65H45/24—Interfolding sheets, e.g. cigarette or toilet papers
    • 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
    • B65H29/54—Article strippers, e.g. for stripping from advancing elements
    • B65H29/56—Article strippers, e.g. for stripping from advancing elements for stripping from elements or machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/80—Transmissions, i.e. for changing speed
    • B65H2403/82—Variable speed drive units

Definitions

  • the present invention relates to the technical field concerning automatic machines for manufacturing and packaging of disposable articles of tissue paper or another similar absorbing material, into interfolded packs.
  • the invention concerns a device for moving folding arms in an interfolding machine, aimed at obtaining such interfolded packs of disposable articles, beginning from continuous strips of the material being used.
  • the conventional, most common interfolding machines include a plurality of rollers material from which the articles are obtained. dimensions-sheet-direction-roller partially overlays the sheet
  • the partially overlaid sheets are taken by a pair of comb-like oscillating devices, provided with a plurality of folding arms, parallel to one another, that separate the overlaid portions of two subsequent sheets from each roller and form the interfolded stack.
  • the folding arms move along a close trajectory that includes a first extreme position, in which the arms are introduced into suitable grooves made in the folding rollers, and a second extreme position, in which the arms protrude outwards of the aforesaid rollers, taking with them a flap of the forthcoming sheet to put it on the stack being formed.
  • the known comb-like devices are hinged on axes parallel to the folding rollers and are generally moved in step relation with the sheets forward movement on the rollers, by means of a mechanism equipped with connecting rod-crank assemblies operated by cam guides.
  • the driving action derives from the interfolding machine main drive, by means of known mechanical transmission devices.
  • a suitably studied cam profile allows the folding arms to execute their movements with required timing and to increase, reduce or even set to zero their movement speed, depending on the position occupied in the close trajectory.
  • a device for driving folding arms in an interfolding machine is disclosed in the European Patent Application EP 0982 255 to M.T.C. Macchine Trasformazione Carta.
  • Said device provides the folding arms with a composite movement obtained through two distinct axes thereof in a same plane.
  • a first axis is the pivot belonging to a connecting lever integral to the folding arms.
  • the second axis of the connecting lever rotates about a pivot by means of a rocking lever pivotally connected to the connecting lever on the other side with respect to the pivot.
  • a cam is provided, continuously rotating about the axis by means of a drive.
  • a such driving device has some drawbacks, comprising a high moment of inertia of transmission elements, and that the trajectory of folding fingers cannot easily changed without changing some mechanical components.
  • Another object of the invention is to propose a driving device capable of allowing immediate variations which can be realized simply by the folding arms trajectories, by the timing, with which the trajectories are followed, and by both characteristics.
  • a further object of the invention is to propose a driving device that is extremely precise and reliable.
  • a device for driving the folding arms of comb-like folding means along a closed operation path used on the interfolding machine for the production of interfolded packs of sheets of tissue paper or another material, mounted on a frame situated in the lower part of the machine.
  • a connecting rod-crank transmission assembly is mounted on the frame and connected to the above mentioned comb-like, aimed at driving the latter along the closed operating path.
  • the driving device comprises also a main motor, aimed at supplying at least a part of mechanical power necessary to drive the comb-like, and a supplementary motor, of controlled rotation speed, aimed at cooperating with the main motor in driving the comb-like.
  • An epicycloidal differential connected mechanically to the main and supplementary motors and to the transmission assembly, receives at the inlet the rotational mechanical power generated by the main and supplementary motors, respectively, and supplies at the outlet the corresponding rotational mechanical power to the transmission assembly as the cornbirtation of the energy received from the inlets.
  • a control unit is also provided in the interfolding machine for adjusting the rotation speed caused by the supplementary motor depending on the position assumed by the folding arms in the above mentioned operating path.
  • FIG. 1 the main operating means of a machine 100 for interfolding sheet articles 1, such as, for example, towels made of tissue paper, are illustrated schematically.
  • the interfolding machine 100 comprises, according to a known technology, a pair of counter-rotating cutting rollers 101a, 101b, a corresponding pair of folding rollers 110a, 110b, likewise counter-rotating and arranged below the cutting rollers 101a, 101b, and corresponding folding assemblies, which comprise a pair of comb-like folding means 2 arranged below the folding rollers 110a, 110b.
  • the comb-like 2 comprises substantially a plurality of folding arms 3 mounted parallel one to another and equidistant on a shaft 4 rotating on its axis (see also Figure 2 ).
  • the shaft 4 is mounted parallel to the axis of the corresponding folding roller 110a, 110b, so that each folding arm 3 is equidistant from the surface thereof.
  • the folding arms 3 are aimed at oscillating periodically, in a suitable phase relation with the rotation of the folding rollers 110a, 110b, along a closed operating path, which allows them to detach the towels 1 from the same folding rollers 110a, 110b, to withdraw them and fold them according to folding schemes, likewise known.
  • the folding arms 3 are driven along the above mentioned operating path by a driving device 10, made according to a first embodiment of the present invention.
  • the driving device 10 comprises a frame 10a, situated below the corresponding folding roller 110a, 110b, which receivers, in its front part, the above mentioned folding means 2, putting them in a position parallel with respect to the aforesaid rollers.
  • the device 10 comprises also motor means 50, having electronically controlled speed and whose structure and conformation constitute the basis of the invention.
  • the motor means 50 comprise first of all main motor means 51, mounted at an end of the frame 10a, aimed at supplying at least a part of the mechanical power necessary to move the comb-like 2, as it will become evident from the following part of the description.
  • the main motor means 51 are constituted by a derivation from the interfolding machine 100 general drive, in the drawings schematized simply with a shaft and a pulley, connected to a mechanical transmission assembly 31 by means of a belt 11. It is to be noted that substantially this derivation speed cannot be controlled, at least, in particular, having regard to the driving device 10, and therefore it is to be considered steady.
  • the transmission assembly 31 includes a phaser-overgear transmission box device 32 of known type, which is connected, by means of a further belt 33 and a pair of pulleys, to an end of a shaft 34 supported by the frame 10 parallel to the shaft 4 of the comb-like 2.
  • the shaft 34 is connected, by means of a pulley and a transmission belt 35, to a differential assembly 20, made of a mechanical epicycloidal differentia!.
  • the transmission belt 35 engages with a first power intake 21 of the aforesaid differential assembly 20, provided in the moving casing thereof.
  • the differential assembly 20 used comprises advantageously a device, commercially available on the maricet, that includes a first power intake 21 in correspondence to its moveable casing, a second axial power intake 22 and a power take-off 23, likewise axial and aligned with the axis of the second intake 22.
  • the differential assembly 20 is mounted on transversal supports made in the frame 10 with the axis parallel to the axes of the shaft 4 of the comb-like 2 and of the shaft 34 of the transmission assembly 31.
  • the output of supplementary motor means 55 is connected axially with the second power intake 22, said supplementary motor means 55 being mounted on one of the transversal supports of the frame 10 and aimed at cooperating with the above mentioned main motor means 51 to drive the comb-like 2.
  • the supplementary motor means 55 comprise advantageously a brushless type motor, whose angular position, and consequently, whose instantaneous velocity in both directions can be controlled with extreme accuracy, and therefore allow to define its instantaneous velocity and position by means of a programmable control unit.
  • the aforesaid type of motor is not to be considered limiting or exhaustive.
  • An excellent electronic control of the rotation speed can be obtained also with other types of electric motor, for example with an asynchronous motor or a stepping motor.
  • the differential assembly 20 is aimed, according to the invention, at receiving at the intake the rotational mechanical power from the main motor 51 and from the supplementary brushless motor 55. and at supplying at the output the rotational mechanical power with the rotation speed defined by the combination of the rotation speed imposed by the main motor 51 on the first power intake 21 and on the second power intake 22.
  • the mechanical transmission means 13 comprise substantially a connecting rod-crank assembly consisting of a connecting rod 13a, coupled at one end to a crank 13b, made in the aforesaid transmission shaft 14, and with the opposite end of the connecting rod 13a connected eccentrically to the shaft 4 of the comb-like 2.
  • a complete rotation of the output transmission shaft 14 corresponds to a cycle of oscillation of the folding arms 3, which brings the latter to cover the above mentioned closed operating path, with a known conformation.
  • the main motor 51 works in a substantially conventional way, with constant rotation speed, and defines the basic driving speed of the folding arms 3, by means of the mechanical transmission assembly 31, the casing of the differential assembly 20 and the connecting rod-crank assembly 13.
  • the rotation speed of the supplementary motor 55 is defined depending on the position assumed by the folding arms 3 along the closed operating path, by means of a suitable program stored in the control unit of the interfolding machine 100, or in a dedicated control unit of the device 10.
  • the rotation speed induced by the supplementary motor 55 in the second power intake 22 of the differential assembly 20 is then added, at the output on the corresponding power take-off 23, to the rotation speed induced by the main motor 51, if the rotation directions of the two motors are concordant, and subtracted therefrom if the supplementary motor 55 is driven to rotate in the direction opposite with respect to that of the main motor 51.
  • timings can be also advantageously changed simply and immediately, also in the production line, varying only the parameters of the control program of the supplementary motor 55.
  • FIG. 4 A second embodiment of the invention is illustrated in Figure 4 .
  • the supplementary motor means 55 include a first brushless motor 55a and a second brushless motor 55b, mounted symmetrical with respect to the mechanical transmission and conversion assembly 13 with the respective axes being aligned.
  • the differential assembly 20 in turn, include a first mechanical differential 20a and a second mechanical differential 20b, both of epicycloidal type, mounted respectively opposite to each other on related transversal supports of the frame 10a and aligned axially with each other and with the aforesaid supplementary motors 55a, 55b.
  • the mechanical differentials 20a, 20b are provided, respectively, with a first power intake 21a, 21b, in correspondence to their respective casing, connected to the main motor 51 by means of a pair of transmission belts 35a, 35b, operated together by the mechanical transmission assembly 31, in a way quite similar to what has been already described with reference to the first embodiment of the invention, with a second power intake 22a, 22b, connected to the supplementary motors 55a, 55b, and with a power take-off 23a, 23b arranged in axis with respect to the second power intake 22a, 22b.
  • the power take-offs 23a, 23b are in turn connected at the opposite sides to the mechanical transmission and conversion means 13.
  • the rotation speed of the supplementary motors 55a, 55b is defined and made synchronous by a program stored in the control unit of the interfolding machine 100, so that both motors cooperate in identical way to change the speed and acceleration of the folding arms 3 along their closed operating paths.
  • the above mentioned motor means 50 comprise a single motor, aimed only at operating the driving device 10, of the electronically controllable speed type, whose shaft is connected directly to the above mentioned outlet shaft 14.
  • the rotation speed of the motor 50 in this case is controlled directly by the programmable control unit of the interfolding machine 100 or of the device 10.
  • a drawback of such further embodiment lies in the fact that the motor 50 can present some inertia probêts, when the accelerations and decelerations necessary for a full control of the folding arms 3 functionality are to be reached for very high production speeds.
  • the choice to use one embodiment of the invention with respect to other described ones is in any case subjected to suitability evaluation in function of the productivity and performance requirements of the device 10 in each single case.

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

Claims (11)

  1. Antriebsvorrichtung 10 zum Antreiben von Faltungsarmen in eine Ineinanderfaltmaschine zum Herstellen von ineinandergefaltet Packungen von Blattartikeln, wie Folien von Tissue-Papier oder einem anderen Material, wobei eine Ineinanderfaltmaschine 100 mindestens einen Faltungswalze 110a, 110b beinhaltet, die jeweils für die Aufnahme in Sequenz einer Mehrzahl von zu stapelnden Blattartikeln 1 vorgesehen sind, und für jede Falzwalze 110a, 110b kammartigen Faltungsmittel 2 mit einer Mehrzahl von Faltungsarmen 3 vorgesehen sind, die in der Nähe der entsprechenden Falzwalze 110a, 110b, mit ihrer Längsachsen im Wesentlichen parallel zur Achse der Falzwalze angeordnet sind, wobei die Faltungsarme 3 in geeigneter Phasenbeziehung zur Drehung der Falzwalze 110a, 110b, und ein von der Antriebsvorrichtung 10 einen festgelegten geschlossenen Betriebsweg entlang bewegbar sind, um periodisch daraus eine Folie 1 zu entnehmen und dass die Folien zu stapeln, so dass entsprechende Packungen gebildet werden, die Antriebsvorrichtung 10 dadurch gekennzeichnet, dass es umfasst: einen Rahmen 10a; Antriebsmittel 50, mit elektronisch steuerbarer Rotationsgeschwindigkeit, die mechanische Energie ausgeben um die kammartigen Faltungsmittel 2 im Kreise zu schwingen; mechanische Übertragungsmittel 13, die an dem Rahmen 10a eingebaut und mit den kammartigen Faltmitteln 2 verbunden sind, und die mit einer Getriebewelle 14 sowie wiederum mit dem Ausgang der Antriebsmittel 50 verbunden sind, die dazu dienen, die mechanische drehende Energie in kontrollierten Hin- und Her-Bewegungen der Faltungsmittel 2 umzuwandeln, um die Faltungsarmen 3 den geschlossenen Betriebsweg entlang zu betrieben; eine programmierbare Steuereinheit, die mit der Antriebsmitteln 50 verbunden und mit einem Verarbeitungsprogramm vorgesehen ist, und die zur Regelung der Drehzahl des Antriebsmittels 50, in Bezug auf die Position der Faltungsarme 3 in der oben erwähnten Betriebsweg, dient.
  2. Antriebsvorrichtung nach Anspruch 1, dadurch gekennzeichnet dass die Antriebsmittel 50, einen einzigen Elektromotor mit von der Ansteuerung der Ineinanderfaltmaschine 100 unabhängiger regelbarer Drehzahl umfassen, mit der Ausgangswelle davon mechanisch an den mechanischen Übertragungsmittel 13 verbunden ist.
  3. Antriebsvorrichtung nach Anspruch 2, dadurch gekennzeichnet dass der Elektromotor mit regelbarer Drehzahl 50 ein bürstenloser Motor ist.
  4. Antriebsvorrichtung nach Anspruch 2, dadurch gekennzeichnet dass der Elektromotor mit regelbarer Drehzahl 50 ein elektrischer Asynchronmotor oder ein elektrischer Schrittmotor ist.
  5. Antriebsvorrichtung nach Anspruch 1, dadurch gekennzeichnet dass die Antriebsmittel mit regelbarer Drehzahl 50 umfassen:
    Hauptantriebsmittel 51, die mit einer vorgegeben ersten Geschwindigkeit wirken und mindestens einen Teil der mechanischen Rotationsenergie, die zum Antreiben der kammartigen Faltungsmittel 2 erforderlich ist, versorgen; Zusatz-Antriebsmittel 55, mit steuerbarer Drehzahl, die mit der Hauptantriebsmitteln 51 zusammenzuarbeiten um die kammartigen Faltungsmittel 2 zu antreiben; eine Differentialanordnung 20, die an dem Rahmen 10a eingebaut sowie mechanisch mit der Hauptantriebsmitteln 51, mit der Zusatz-Antriebsmitteln 55 und mit der mechanischen Übertragung verbunden sind, und Umwandlungsmittel 13, die die durch die Haupt- und Zusatz-Antriebsmittel 51 und 55 erzeugte mechanische Rotationsenergie am Eintritt aufnimmt und mit der entsprechenden mechanischen Rotationsenergie die Übertragung- und Umwandlungsmittel 13 am Austritt versorgen, mit einer durch die Kombination der Geschwindigkeiten der Haupt-und Zusatz-Antriebsmittel 51, 55 definierten Geschwindigkeit; wobei die programmierbare Steuereinheit vorgesehen ist, um die durch die Zusatz-Antriebsmittel 55 induzierte Drehzahl in Bezug auf die Position der Faltungsarme 3 in der oben erwähnten Betriebsweg zu anpassen.
  6. Antriebsvorrichtung nach Anspruch 5, dadurch gekennzeichnet dass die Differentialanordnung 20 ein mechanisches Differential Umlaufgetriebe umfasst, das mit einer ersten Leistungs-Aufnahme 21, die mit der Hauptantriebsmitteln 51 verbunden ist, an seinem Gehäuse versehen ist, mit einer zweiten Leistungs-Aufnahme 22, die mit der Zusatz-Antriebsmitteln 55 verbunden ist, und mit einem Getriebe-Auslass 23, der sich in Ache mit der zweiten Leistungs-Aufnahme 22 befindet und mit der mechanischen Übertragung- und Umwandlungsmitteln 13 verbunden ist, wobei wird die Drehzahl des Getriebe-Auslasses 23 durch die Kombination der von der Haupt-Antriebsmitteln 51, in der ersten Leistungs-Aufnahme 21, induzierten Drehzahl und der von der Zusatz-Antriebsmitteln, in der zweiten Leistungs-Aufnahme 22, induzierten Drehzahl definiert.
  7. Antriebsvorrichtung nach Anspruch 5 oder Anspruch 6, dadurch gekennzeichnet dass die Zusatz-Antriebsmittel 55 einen bürstenloser Motor mit steuerbarer Position aufweisen.
  8. Antriebsvorrichtung nach Anspruch 5 oder Anspruch 6, dadurch gekennzeichnet dass die Zusatz-Antriebsmittel 55 einen Asynchronmotor oder einen elektrische Schrittmotor aufweisen.
  9. Antriebsvorrichtung nach Anspruch 5 und Anspruch 6, dadurch gekennzeichnet dass die Haupt-Antriebsmittel 51 mit der ersten Leistungs-Aufnahme 21 mittels einer mechanischen Getriebeeinheit 31 verbunden sind, die einen Treibriemen 35, der auf dem beweglichen Gehäuse 21 der Differential-Anordnung 20 einwirkt, umfasst.
  10. Antriebsvorrichtung nach Anspruch 5, dadurch gekennzeichnet dass die Zusatz-Antriebsmittel 55 einen ersten zusätzlichen bürstenlosen Motor 55a und einen zweiten zusätzlichen bürstenlosen Motor 55b umfassen, und dass die Differentialanordnung 20 ein erstes mechanisches Differential 20a und ein zweites mechanisches Differential 20b umfasst, die beiden Planetengetrieben Art und jeweils gegenüberliegenden angebracht sind, und jeweils mit einer ersten Leistungs-Aufnahmen 21a, 21b, die an ihren Gehäusen versehen und mit der Haupt-Antriebsmitteln 51 verbunden sind, wobei eine zweite Leistungs-Aufnahme 22a, 22b, mit den jeweiligen zusätzlichen Motor 55a, 55b, und mit einem Getriebe-Auslass 23a, 23b verbunden ist das sich in Achse mit der zweiten Leistungs-Aufnahme 22a, 22b befindet, wobei sind die Getriebe-Auslass 23a, 23b in Achse miteinander und, an den gegenüberliegenden Seiten, zu der mechanischen Übertragung- und Umwandlungsmitteln 13 verbunden, wobei wird die Drehzahl der Getriebe-Auslässe 23a, 23b durch die Kombination der von der Haupt-Antriebsmitteln 51, jeweils in der ersten Leistungs-Aufnahme 21a, 21b, induzierten Drehzahl und der von der Zusatz-Antriebsmitteln 55, jeweils in der zweiten Leistungs-Aufnahme 22a, 22b induzierten Drehzahl definiert, wobei werden die Drehzahlen der zusätzlichen Motoren 55a, 55b durch die Steuereinheit der Ineinanderfaltmaschine 100 synchronisiert.
  11. Antriebsvorrichtung nach Anspruch 10, dadurch gekennzeichnet dass die ersten Antriebsmittel 51 mit der ersten Leistungs-Aufnahme 21 a der ersten mechanischen Differential Umlaufgetriebe 20a, mittels einer mechanischen Getriebeeinheit 31 und durch einen ersten Treibriemen 35, der auf der ersten Leistungs-Aufnahme 21a der ersten mechanischen Differential Umlaufgetrieben 20a einwirkt, sowie mit der ersten Leistungs-Aufnahme 21b der zweiten mechanischen Differential Umlaufgetriebe 20b, mittels einer mechanischen Getriebeeinheit 31 und durch einen zweiten Treibriemen 35b, der auf der ersten Leistungs-Aufnahme 21b der zweiten mechanischen Differential Umlaufgetrieben 20b einwirkt, verbunden sind.
EP10742243.8A 2009-06-04 2010-06-01 Vorrichtung für den antrieb der faltarme einer zusammenfaltmaschine Not-in-force EP2437994B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO2009A000359A IT1394482B1 (it) 2009-06-04 2009-06-04 Dispositivo per la movimentazione delle dita di piega in una macchina interfoliatrice
PCT/IB2010/001316 WO2010140046A1 (en) 2009-06-04 2010-06-01 Device for driving the folding arms of an interfolding machine

Publications (2)

Publication Number Publication Date
EP2437994A1 EP2437994A1 (de) 2012-04-11
EP2437994B1 true EP2437994B1 (de) 2013-08-14

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US (1) US20120071311A1 (de)
EP (1) EP2437994B1 (de)
BR (1) BRPI1013256A2 (de)
IT (1) IT1394482B1 (de)
WO (1) WO2010140046A1 (de)

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IT202100028229A1 (it) 2021-11-05 2023-05-05 Ot Lucca S R L Macchina interfogliatrice
IT202200002804A1 (it) 2022-02-16 2023-08-16 Ot Lucca S R L Impianto con macchina interfogliatrice, metodo e macchina interfogliatrice
WO2024028757A1 (en) * 2022-08-05 2024-02-08 Ot Lucca S.R.L. Nterfolding machine and method for varying a length of sheet articles produced by the interfolding machine

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IT1394482B1 (it) * 2009-06-04 2012-07-05 Tissuewell S R L Dispositivo per la movimentazione delle dita di piega in una macchina interfoliatrice
IT201800002342A1 (it) * 2018-02-02 2019-08-02 Perini Fabio Spa Macchina interfogliatrice con diti separatori adiacenti a rispettivi rulli interfogliatori
WO2020167544A1 (en) * 2019-02-13 2020-08-20 Cummins Inc. Prime mover systems with a power take-off system and a transmission
CN116490450A (zh) * 2020-11-20 2023-07-25 柯尔柏纸张折叠有限公司 纸张加工机器中的纸张幅材或片材的折叠或交叉折叠单元
WO2022107057A1 (en) * 2020-11-20 2022-05-27 Körber Tissue Fold S.R.L. Suction roll of a web, or sheet, of paper in a paper converting machine

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DE3927422C2 (de) * 1989-08-19 1998-07-09 Winkler Duennebier Kg Masch Verfahren und Vorrichtung zur Herstellung von zahlgerechten Teilstapeln aus überlappend ineinandergefalteten Tüchern
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IT1394482B1 (it) * 2009-06-04 2012-07-05 Tissuewell S R L Dispositivo per la movimentazione delle dita di piega in una macchina interfoliatrice

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100028229A1 (it) 2021-11-05 2023-05-05 Ot Lucca S R L Macchina interfogliatrice
WO2023079458A1 (en) * 2021-11-05 2023-05-11 Ot Lucca S.R.L. Interfolding machine
IT202200002804A1 (it) 2022-02-16 2023-08-16 Ot Lucca S R L Impianto con macchina interfogliatrice, metodo e macchina interfogliatrice
WO2024028757A1 (en) * 2022-08-05 2024-02-08 Ot Lucca S.R.L. Nterfolding machine and method for varying a length of sheet articles produced by the interfolding machine

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US20120071311A1 (en) 2012-03-22
EP2437994A1 (de) 2012-04-11
ITBO20090359A1 (it) 2010-12-05
WO2010140046A1 (en) 2010-12-09
BRPI1013256A2 (pt) 2019-09-24
IT1394482B1 (it) 2012-07-05

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