EP1457444A2 - Machine de pliage enchevetre d'une bande ou de feuilles de papier avec un rouleau transporteur a vide - Google Patents

Machine de pliage enchevetre d'une bande ou de feuilles de papier avec un rouleau transporteur a vide Download PDF

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Publication number
EP1457444A2
EP1457444A2 EP04003595A EP04003595A EP1457444A2 EP 1457444 A2 EP1457444 A2 EP 1457444A2 EP 04003595 A EP04003595 A EP 04003595A EP 04003595 A EP04003595 A EP 04003595A EP 1457444 A2 EP1457444 A2 EP 1457444A2
Authority
EP
European Patent Office
Prior art keywords
machine
roller
holes
tubular body
chamber
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
EP04003595A
Other languages
German (de)
English (en)
Other versions
EP1457444A3 (fr
EP1457444B2 (fr
EP1457444B1 (fr
Inventor
Alessandro De Matteis
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.)
MTC Macchine Trasformazione Carta SRL
Original Assignee
MTC Macchine Trasformazione Carta SRL
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=32773676&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1457444(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from EP03425091A external-priority patent/EP1449799A1/fr
Application filed by MTC Macchine Trasformazione Carta SRL filed Critical MTC Macchine Trasformazione Carta SRL
Priority to EP04003595.8A priority Critical patent/EP1457444B2/fr
Publication of EP1457444A2 publication Critical patent/EP1457444A2/fr
Publication of EP1457444A3 publication Critical patent/EP1457444A3/fr
Application granted granted Critical
Publication of EP1457444B1 publication Critical patent/EP1457444B1/fr
Publication of EP1457444B2 publication Critical patent/EP1457444B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for 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
    • 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
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/33—Rotary suction means, e.g. roller, cylinder or drum
    • 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
    • B65H2406/30—Suction means
    • B65H2406/36—Means for producing, distributing or controlling suction
    • B65H2406/361—Means for producing, distributing or controlling suction distributing vacuum from stationary element to movable element
    • B65H2406/3614—Means for producing, distributing or controlling suction distributing vacuum from stationary element to movable element involving a shoe in sliding contact with an inner section of the periphery of a rotating element

Definitions

  • the present invention relates to the field of machines for converting paper and similar products, and in particular it relates to an interfolding machine of a web or sheet of paper.
  • the invention relates to an interfolding machine having a paper conveying roller having circumferentially a plurality of holes which, connected to a vacuum system, allow the sheet or web of paper to adhere on their surface.
  • such systems are used to provide the main operations of cutting the paper, of transferring it quickly from a roller to another, of final folding the paper same.
  • the machines are normally equipped either with mechanical clamps or with pneumatic suction means.
  • the air suction systems owing to a certain vacuum grade created within the rollers, cause the processed paper to adhere on the roller surface by means of rows of suction holes.
  • the vacuum is transmitted through a plurality of longitudinal channels 102 into roller 101, causing the paper 120 to adhere selectively to the roller surface same by means of a plurality of holes 103.
  • holes 103 are arranged according to longitudinal rows with respect to the axis 104 of the cylinder (transversal with respect to the paper) since the vacuum is made selectively by distributor means. This causes a division of the roller surface into paper suction fields, i.e. where the rows of holes are enabled for suction, and into fields where the processed paper is instead freed from the roller for being for example transferred onto another roller or folded, i.e. the respective rows of holes are not enabled for suction.
  • the paper conveying roller is normally coupled, at an end thereof, to a bell-shaped vacuum distributor element 110 to it co-axial but whose rotation is impeded by means of suspension on ball bearings.
  • the vacuum distributor 110 is equipped with an inlet 111 connected to the suction system of the machine and communicating with a curved opening 112 determined on the distributor same. More in detail, the curved opening 112 extends for a certain angle and, during the rotation of the roller about its own axis, selectively communicates with longitudinal channels 102 and then with the respective rows of holes 103. This way, a portion of roller surface (hatched area in figure 1) is obtained in which the sheet or the web of paper is captured by suction and adheres on the roller surface.
  • channels 102 are at atmospheric pressure except from when they are in communication with the vacuum distributor.
  • This causes, however, the row of holes 103, which is enabled to suction by alignment with curved opening 112, to start the suction of the sheet on the roller surface 101 only after that the air present in the respective longitudinal channel 102 has been removed. Therefore, there is a delay between the beginning of the suction in channel 102 and the moment where the portion of roller surface located at holes row 103 can actually start the suction of the paper, owing to the vacuum inertia for the presence of air channel 102 and the propagation time of the vacuum for all the row of holes length. Furthermore, as soon as channel 102 is not more enabled for suction, even if there is a delay of the vacuum to disappear, then, in any case, the vacuum is lost and the channel returns to the atmospheric pressure.
  • a not efficient suction by the holes can affect the successive operations of the machine causing paper jamming and stop of production.
  • the maximum air flow rate is limited.
  • paper dragging rollers also exist formed by a fixed cylinder that form a longitudinal chamber, about which a concentric roller rotates formed by a inner stiff tubular shell having a plurality of holes, and an outer resilient tubular shell, having a plurality of deformable holes.
  • a concentric roller rotates formed by a inner stiff tubular shell having a plurality of holes, and an outer resilient tubular shell, having a plurality of deformable holes.
  • the deformable holes When contacting the paper the deformable holes are open and bring into communication the paper with the holes of the inner shell and the suction chamber, preventing the roller from sliding with respect to the paper.
  • the sealing ability of the holes however is limited to the contact with a web of paper and with a certain pressure, whereby this type of roller is unsuitable for applications with sheets of paper. Furthermore, it is suitable only for narrow fields of suction.
  • the document US 3037557 describes a vacuum roller that can be used in printing presses and coating apparatus, in paper making machines, for stretching a web of paper in order to remove the humidity surplus, as well as in machines for laminating a film thin. It comprises a fixed inner body and an outer cylinder having a plurality of longitudinal radial holes capable of rotating with respect to the inner body.
  • the fixed inner body has inside a suction chamber communicating with vacuum means and having a peripheral opening.
  • sectors are provided having each friction seals that slide against the inner wall of the outer cylinder.
  • the seals define a zone communicating with the suction chamber through said opening and that transmit then a vacuum to the corresponding holes of the cylindrical body.
  • Such a roller is not suitable for interfolding machines as the present invention. In fact, interfolding machines must move with precision a web of paper for all the length of the roller, even 2-3 metres, and such a division into sectors is not feasible.
  • the interfolding machine of a web or sheet of paper comprising at least one roller for moving said web or sheet, wherein said roller comprises:
  • roller actuation means are provided suitable for operating said interposition means between a first position where they bring in pneumatic connection the chamber and at least one row of holes and a second position they pneumatically insulate the chamber from said or each row of holes.
  • said interposition means comprise a longitudinal rod associated to at least one row of holes and provided with through holes that are aligned with the relative holes of said roller bringing them in suction operability at said first position.
  • said actuating means comprises cam means located at least at one end of said rod and suitable for engaging with fixed cam means at the rotation of said roller.
  • the rod is free of rotating about its own axis between said first and second position or, alternatively, is free of translating along its own axis between said first and second position.
  • the cam means can be selected from the group: a pin eccentric with respect to a longitudinal axis of said rod, a cam integral to said rod, a cam surface associated to a spring, said fixed cam means providing a fixed shaped guide.
  • the chamber that is always under vacuum can be defined by the inner surface of said cylindrical tubular body or, alternatively, by a hollow body fixed in said cylindrical tubular body.
  • the interposition means comprise sealing elements sliding against the inner surface of the cylindrical tubular body.
  • the sliding sealing elements can be forced elastically against the inner surface of the cylindrical tubular body.
  • the interposition means provides two radial boards, between which at least one opening is present, which extends between the first and the second tubular body for all the length of the roller in order to define the suction chamber.
  • Each radial board preferably, can comprise a fixed portion, forming a guide arranged longitudinally with respect to the conveying roller, within which a bar can slide radially forced elastically against the inner surface of the first cylindrical tubular body, forming said sliding sealing element.
  • a roller 1 used for conveying a web or sheet of paper 20 for paper converting machines, for example, a rewinding machine, a winding machine, an interfolding machine. It comprises a first outer cylindrical tubular body 2, equipped with a plurality of radial holes 3 arranged according to substantially longitudinal rows, capable of rotating with respect to a second inner fixed body 4, co-axial to the former and connected to a suction system not shown.
  • the second body 4 which as shown in the embodiments of figures 3 and 4 has tubular cylindrical geometry like first body 2, has a plurality of apertures 5 and two radial boards 7 at opposite sides with respect to apertures 5.
  • first cylindrical tubular body 2, radial boards 7 and the external surface of second tubular body 4 define a suction chamber 6 that, during the relative rotation of the two bodies, brings selectively in communication some rows of holes 3 of first cylindrical tubular body 2 with the apertures 5 of second tubular body 4 and then with the suction system of the machine. Therefore, a web or sheet of paper 20 adheres to the external surface of first body 2 only in the portion P 1 P 2 of the surface set between the rows of holes 3' that communicate with the suction chamber (figure 4).
  • the apertures 5 made on the surface of second tubular body 4 are arranged longitudinally and are enough to allow a quick outlet of the air present in holes 3' that in turn overlap to the suction chamber 6. This is possible also because chamber 6 is fixedly kept at a determined vacuum grade.
  • radial boards 7, between which the apertures 5 extend are arranged radially for all the length of second cylindrical tubular body 4 and are have high sealing capability of the suction chamber from the remaining space comprised between bodies 2 and 4.
  • radial boards having a fixed portion 10, integral to second inner tubular body 4 and forming a longitudinal channel, and a movable portion 7 that engages with fixed portion 10 and pushes elastically against the inner surface of first tubular body 2 urged by springs 9.
  • Springs 9 can be located, as in the case of figures 3 and 4, about pins 11 which are constrained in a housing within fixed portion 10.
  • rollers 1 are provided as above described that work in cooperation with folding rollers 40.
  • the unit works for example in the way described in EP0982255 or in EP0982256 in the name of the same applicant.
  • rollers 40 have six couples of rows, wherein three couples of rows of holes spaced 120° capture the end of a sheet, and other three couples of rows of holes spaced 120°, shifted 60° with respect to the former, capture through the central portions of a sheet, the end of a second overlapped sheet and ready for being interfolded.
  • the first three couples of holes must be enabled for suction between two consecutive cuts, for a sector between the point of contact of rollers 1 with rollers 40 up to the contact between the two opposite rollers 1, whereas the other three couples of holes must be enabled for suction between the contact between the two rollers 40 and the point where the fold is made.
  • rollers 40 are shown in figure 5 having a "mixed" structure as a combination of a roller of prior art and a roller 1 according to the invention. More in detail:
  • a roller can be made that enables to suction three couples of rows of holes all with a system according to the invention.
  • the inner second body may have three radial boards, forming three chambers, one not enabled to suction and two enabled to suction with a different vacuum grade.
  • roller 1 shown in figures from 1 to 5.
  • the roller provides a cylindrical tubular body 202 capable of rotating about an axis 210 and a chamber 206 pneumatically connected to a suction system.
  • a longitudinal rod 230 is provided free of rotating about its own axis with respect to roller 202 and equipped with holes 231.
  • holes 231 are aligned with holes 203 bringing them in suction operability at a first position R1, while they rotate and insulate pneumatically the same row of holes from the suction chamber at a position R2.
  • the rod 230 has at an end a pin 235 that is suitable for sliding in a fixed guide 215 co-axial to roller 202.
  • Fixed guide 215 is shaped for causing rod 230 to rotate, by eccentric pin 235, with respect to roller 202 at first position R1 (see fig. 7) to allow suction through holes 203' that is located in a portion 202' of the roller, as well as for causing the same rod 230 to rotate further, insulating pneumatically the same row of holes 203 from the suction chamber 206 at the second position R2.
  • a cam 335 can be provided hinged to rod 230, for example at one end thereof, which is operated at R1 and R2 by abutments for causing the rod 230 same to rotate.

Landscapes

  • Advancing Webs (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Replacement Of Web Rolls (AREA)
EP04003595.8A 2003-02-18 2004-02-18 Machine de pliage enchevetre d'une bande ou de feuilles de papier avec un rouleau transporteur a vide Expired - Lifetime EP1457444B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04003595.8A EP1457444B2 (fr) 2003-02-18 2004-02-18 Machine de pliage enchevetre d'une bande ou de feuilles de papier avec un rouleau transporteur a vide

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP03425091 2003-02-18
EP03425091A EP1449799A1 (fr) 2003-02-18 2003-02-18 Rouleau pour convoyer une bande ou une feuille de papier dans une machine de conversion de papier et méthode obtenue de convoyage
EP04003595.8A EP1457444B2 (fr) 2003-02-18 2004-02-18 Machine de pliage enchevetre d'une bande ou de feuilles de papier avec un rouleau transporteur a vide

Publications (4)

Publication Number Publication Date
EP1457444A2 true EP1457444A2 (fr) 2004-09-15
EP1457444A3 EP1457444A3 (fr) 2005-10-26
EP1457444B1 EP1457444B1 (fr) 2011-11-09
EP1457444B2 EP1457444B2 (fr) 2018-10-24

Family

ID=32773676

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04003595.8A Expired - Lifetime EP1457444B2 (fr) 2003-02-18 2004-02-18 Machine de pliage enchevetre d'une bande ou de feuilles de papier avec un rouleau transporteur a vide

Country Status (1)

Country Link
EP (1) EP1457444B2 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI455863B (zh) * 2012-07-04 2014-10-11 Snu Precision Co Ltd 片材導向系統
ITUB20159653A1 (it) * 2015-12-23 2017-06-23 Mtc Macch Trasformazione Carta S R L Unita? di avanzamento di nastri, o fogli di carta in macchine per la trasformazione della carta e macchina piegatrice e impilatrice che adotta tale unita? di avanzamento
ITUA20162080A1 (it) * 2016-03-29 2017-09-29 United Converting Srl Struttura di rullo aspirato per macchine interfogliatrici.
IT201600077916A1 (it) * 2016-07-25 2018-01-25 Universal Tissue Tech S R L Rullo piegatore e macchina interfogliatrice impiegante detto rullo
WO2020021490A1 (fr) 2018-07-26 2020-01-30 M.T.C. - Macchine Trasformazione Carta S.R.L. Rouleau d'aspiration amélioré pour machines de transformation de papier
IT201900001579A1 (it) 2019-02-04 2020-08-04 Mtc Macch Trasformazione Carta S R L Unita’ di piega, o interfogliatura, di fogli di carta per una macchina per la trasformazione della carta
CN111498571A (zh) * 2020-05-20 2020-08-07 佛山市南海区德昌誉机械制造有限公司 一种生活用纸加工的多腔辊体
CN113277365A (zh) * 2020-02-20 2021-08-20 Vmi荷兰公司 用于将条带施加到鼓的施加辊、轮胎部件供料器以及方法
WO2022107057A1 (fr) 2020-11-20 2022-05-27 Körber Tissue Fold S.R.L. Cylindre aspirant d'une bande ou d'une feuille de papier dans une machine de conversion de papier
IT202100010283A1 (it) 2021-04-22 2022-10-22 Koerber Tissue Fold S R L Unita’ di piega, o interfogliatura, di fogli di carta in una macchina per la trasformazione della carta
IT202100011531A1 (it) 2021-05-06 2022-11-06 Koerber Tissue Fold S R L Unita’ di piega, o interfogliatura, di fogli di carta in una macchina per la trasformazione della carta
IT202100012539A1 (it) 2021-05-14 2022-11-14 Koerber Tissue Fold S R L Macchina per la produzione di prodotti laminari in materiale cartaceo, in particolare pacchi di tovaglioli, fazzoletti, o simili prodotti e relativo metodo di produzione

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Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI455863B (zh) * 2012-07-04 2014-10-11 Snu Precision Co Ltd 片材導向系統
ITUB20159653A1 (it) * 2015-12-23 2017-06-23 Mtc Macch Trasformazione Carta S R L Unita? di avanzamento di nastri, o fogli di carta in macchine per la trasformazione della carta e macchina piegatrice e impilatrice che adotta tale unita? di avanzamento
WO2017109670A1 (fr) * 2015-12-23 2017-06-29 M.T.C. - Macchine Trasformazione Carta Srl Unité de transport de bande ou feuille pour machines de conversion de papier et machine de pliage ou pliage enchevêtré équipée d'une telle unité de transport
CN108473266B (zh) * 2015-12-23 2021-04-06 M.T.C.造纸机械科学研究实验室 用于纸转换加工机器的纸幅或纸张传送单元和具有这种传送单元的折叠或交叠机
CN108473266A (zh) * 2015-12-23 2018-08-31 M.T.C.造纸机械科学研究实验室 用于纸转换加工机器的纸幅或纸张传送单元和具有这种传送单元的折叠或交叠机
US10793390B2 (en) 2015-12-23 2020-10-06 M.T.C.—Macchine Trasformazione Carta Srl Web or sheet conveying unit for paper converting machines and folding or interfolding machine with such conveying unit
ITUA20162080A1 (it) * 2016-03-29 2017-09-29 United Converting Srl Struttura di rullo aspirato per macchine interfogliatrici.
WO2017168232A1 (fr) * 2016-03-29 2017-10-05 United Converting S.R.L. Structure de rouleau d'aspiration pour machine d'encartage
US11027933B2 (en) 2016-03-29 2021-06-08 United Converting S.R.L. Suction roller structure for an interleaving machine
CN108698780A (zh) * 2016-03-29 2018-10-23 联合转换公司 一种用于交织机的吸辊结构
WO2018019679A1 (fr) 2016-07-25 2018-02-01 Universal Tissue Technology S.R.L. Rouleau de pliage et machine de pliage enchevêtré utilisant ledit rouleau
US11034541B2 (en) 2016-07-25 2021-06-15 Maxima S.R.L. Folding roller and interfolding machine employing said roller
CN109496196A (zh) * 2016-07-25 2019-03-19 莫托雷斯生活用纸有限责任公司 折叠辊和采用所述辊的交错折叠机
IT201600077916A1 (it) * 2016-07-25 2018-01-25 Universal Tissue Tech S R L Rullo piegatore e macchina interfogliatrice impiegante detto rullo
WO2020021490A1 (fr) 2018-07-26 2020-01-30 M.T.C. - Macchine Trasformazione Carta S.R.L. Rouleau d'aspiration amélioré pour machines de transformation de papier
CN113490633A (zh) * 2019-02-04 2021-10-08 Mtc造纸机械改造公司 纸张的折叠或交互折叠、纸转换机机器的纸张折叠或交互折叠单元
IT201900001579A1 (it) 2019-02-04 2020-08-04 Mtc Macch Trasformazione Carta S R L Unita’ di piega, o interfogliatura, di fogli di carta per una macchina per la trasformazione della carta
US11629029B2 (en) 2019-02-04 2023-04-18 M.T.C.—Macchine Trasformazione Carta S.R.L. Folding, or interfolding, unit for folding, or interfolding sheets of paper for a machine for paper converting
CN113277365A (zh) * 2020-02-20 2021-08-20 Vmi荷兰公司 用于将条带施加到鼓的施加辊、轮胎部件供料器以及方法
CN113277365B (zh) * 2020-02-20 2023-08-15 Vmi荷兰公司 用于将条带施加到鼓的施加辊、轮胎部件供料器以及方法
CN111498571A (zh) * 2020-05-20 2020-08-07 佛山市南海区德昌誉机械制造有限公司 一种生活用纸加工的多腔辊体
WO2022107057A1 (fr) 2020-11-20 2022-05-27 Körber Tissue Fold S.R.L. Cylindre aspirant d'une bande ou d'une feuille de papier dans une machine de conversion de papier
IT202100010283A1 (it) 2021-04-22 2022-10-22 Koerber Tissue Fold S R L Unita’ di piega, o interfogliatura, di fogli di carta in una macchina per la trasformazione della carta
IT202100011531A1 (it) 2021-05-06 2022-11-06 Koerber Tissue Fold S R L Unita’ di piega, o interfogliatura, di fogli di carta in una macchina per la trasformazione della carta
IT202100012539A1 (it) 2021-05-14 2022-11-14 Koerber Tissue Fold S R L Macchina per la produzione di prodotti laminari in materiale cartaceo, in particolare pacchi di tovaglioli, fazzoletti, o simili prodotti e relativo metodo di produzione

Also Published As

Publication number Publication date
EP1457444A3 (fr) 2005-10-26
EP1457444B2 (fr) 2018-10-24
EP1457444B1 (fr) 2011-11-09

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