US20040159999A1 - Conveying roller for a paper web, machines equipped therewith and methods of use - Google Patents

Conveying roller for a paper web, machines equipped therewith and methods of use Download PDF

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Publication number
US20040159999A1
US20040159999A1 US10/779,940 US77994004A US2004159999A1 US 20040159999 A1 US20040159999 A1 US 20040159999A1 US 77994004 A US77994004 A US 77994004A US 2004159999 A1 US2004159999 A1 US 2004159999A1
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US
United States
Prior art keywords
paper
tubular body
suction
conveying roller
holes
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.)
Abandoned
Application number
US10/779,940
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English (en)
Inventor
Alessandro Dematteis
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
Application filed by MTC Macchine Trasformazione Carta SRL filed Critical MTC Macchine Trasformazione Carta SRL
Assigned to MTC-MACCHINE TRASFORMAZIONE CARTA S.R.L. reassignment MTC-MACCHINE TRASFORMAZIONE CARTA S.R.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DE MATTEIS, ALESSANDRO
Publication of US20040159999A1 publication Critical patent/US20040159999A1/en
Priority to US13/137,665 priority Critical patent/US11230453B2/en
Abandoned 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
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/28—Folding in combination with cutting
    • 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 a paper conveying roller for machines working in this field such as in particular winding, rewinding, interfolding machines.
  • the invention relates to 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.
  • 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 FIG. 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.
  • the roller for conveying a web or sheet of paper in paper converting machines comprising a first cylindrical tubular body, equipped with a plurality of radial holes arranged according to substantially longitudinal rows, capable of rotating with respect to a second inner fixed co-axial body.
  • the roller provides inside at least one chamber connected to a suction system, defined between the first and the second body by means of sliding sealing elements, suitable for being brought selectively in communication with at least one of said row of holes during the relative rotation of the bodies. This way, maintaining a fixed vacuum grade in the chamber, the holes that communicate with it are immediately available as elements for capturing the paper on the external roller surface.
  • a web or sheet of paper adheres to the external surface of the first body only in the portion of surface set between rows of holes that communicates with the suction chamber.
  • the fact that a determined vacuum grade is steadily maintained allows to enable directly for suction the holes located in the portion of surface overlapping the suction chamber.
  • the second body is tubular cylindrical and the sliding sealing capability is obtained with 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.
  • a plurality is provided of apertures arranged longitudinally along the second cylindrical tubular body and within the portion thereof defined by the radial boards.
  • the ends which in the suction chamber contact the inner surface of the first body can provide plastic inserts, for example of polymeric resin, which slide on the smooth inner surface of the first tubular body.
  • the sealing capability of the suction chamber is achieved forcing elastically the radial boards against the inner surface of the first cylindrical tubular body. This way, the necessary side sealing conditions of the suction chamber are guaranteed without that the radial boards effect a high resistance against the relative rotation of the two cylindrical tubular bodies.
  • each radial board 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.
  • a paper converting machine such as a rewinding machine, a winder or an interfolding machine, comprises at least one paper conveying roller as above described.
  • a method for moving a sheet or a web of paper in paper converting machines uses a paper conveying roller comprising a first cylindrical tubular body equipped with a plurality of radial holes arranged according to substantially longitudinal rows.
  • the method has the feature that the holes are selectively enabled for suction or for not suction by the relative rotation between the first cylindrical tubular body and a second inner fixed co-axial body connected to a suction system through at least one opening.
  • the relative rotation between the two bodies brings selectively in communication a suction chamber, defined between the first and the second body, with at least one of said row of holes, the chamber being defined by means of sliding sealing elements arranged between the first and the second body.
  • the sealing capability of the suction chamber is achieved forcing elastically the sliding sealing elements, which belong to the second fixed co-axial body, against the inner surface of the first cylindrical tubular body.
  • FIGS. 1 and 2 already commented in the introductory part show the following:
  • FIG. 1 is a perspective view of a paper conveying roller for paper converting machines and of the vacuum distributor to it associated, as known in the art;
  • FIG. 2 shows a longitudinal cross section of a conveying roller according to the prior art coupled to a vacuum distributor.
  • FIGS. 3 and 4 show a cross sectional view of a paper conveying roller for paper converting machines, according to the present invention, in two relative different positions between the first and the second cylindrical tubular body;
  • FIG. 5 shows a cross sectional view of a interfolding machine that has conveying rollers according to the invention.
  • FIGS. 3 and 4 a cross sectional view is shown of.
  • 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 FIGS. 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 (FIG. 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 .
  • This result is obtained with 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 FIGS. 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 FIG. 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:
  • the sheet is captured by roller 1 up to the point of contact between two rollers 40 by means of a traditional suction system, with suction channel and bell-shaped vacuum distributor; in fact, for capturing and holding the sheet a light vacuum grade and a not high angular precision are enough and this system is sufficient;
  • 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.
  • the present invention is applicable at a desired interfolding, rewinding or winding machine which uses a roller according to the invention.

Landscapes

  • Delivering By Means Of Belts And Rollers (AREA)
  • Advancing Webs (AREA)
  • Replacement Of Web Rolls (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
US10/779,940 2003-02-18 2004-02-17 Conveying roller for a paper web, machines equipped therewith and methods of use Abandoned US20040159999A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/137,665 US11230453B2 (en) 2003-02-18 2011-09-01 Roller for conveying a web or sheet of paper in paper converting machines and conveying method thus obtained

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
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
EP03425091.0 2003-02-18

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/137,665 Continuation-In-Part US11230453B2 (en) 2003-02-18 2011-09-01 Roller for conveying a web or sheet of paper in paper converting machines and conveying method thus obtained

Publications (1)

Publication Number Publication Date
US20040159999A1 true US20040159999A1 (en) 2004-08-19

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US10/779,940 Abandoned US20040159999A1 (en) 2003-02-18 2004-02-17 Conveying roller for a paper web, machines equipped therewith and methods of use

Country Status (4)

Country Link
US (1) US20040159999A1 (fr)
EP (1) EP1449799A1 (fr)
AT (1) ATE532732T1 (fr)
ES (1) ES2376577T5 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060177940A1 (en) * 2005-02-07 2006-08-10 Furst Eric M Optical trap separations in microfluidic flows
US20120270716A1 (en) * 2011-04-21 2012-10-25 C.G. Bretting Manufacturing Co., Inc. Tube in a tube mechanical folding roll
CN102897605A (zh) * 2012-11-08 2013-01-30 吴江市三友针纺有限公司 一种纺织用卷筒
US20130026280A1 (en) * 2010-04-10 2013-01-31 Foshan Baosuo Paper Machinery Manufacture Co., Ltd Coreless paper roll rewinding machine without a winding assisting plate
US20130056574A1 (en) * 2010-05-24 2013-03-07 Foshan Baosuo Paper Machinery Manufacture Co., Ltd Coreless paper roll rewinding machine
CN107826828A (zh) * 2017-11-24 2018-03-23 佛山市南海区德昌誉机械制造有限公司 一种动态旋转吸附腔的卫生纸卷复卷机以及复卷方法
US10011450B2 (en) 2015-08-17 2018-07-03 C.G. Bretting Manufacturing Co., Inc. Web processing roll having directional vacuum ports
CN111226604A (zh) * 2020-03-13 2020-06-05 石河子大学 一种红枣捡拾装置及红枣收获机
CN111924628A (zh) * 2020-07-15 2020-11-13 佛山市南海铭阳机械制造有限公司 抽式棉柔巾机的折叠棍
US11027933B2 (en) * 2016-03-29 2021-06-08 United Converting S.R.L. Suction roller structure for an interleaving machine
US11034541B2 (en) * 2016-07-25 2021-06-15 Maxima S.R.L. Folding roller and interfolding machine employing said roller
US11078037B2 (en) * 2017-12-15 2021-08-03 Andrea Bernacchi Roller conveying unit for conveying a sheet by means of aspiration
CN116472242A (zh) * 2020-11-20 2023-07-21 柯尔柏纸张折叠有限公司 在纸转换机中纸幅或纸片的抽吸辊
US20240208756A1 (en) * 2022-12-21 2024-06-27 Kyocera Document Solutions Inc. Conveying roller, web conveying device, and image forming apparatus capable of reducing scale of apparatus
US20250326603A1 (en) * 2022-04-28 2025-10-23 Valmet Tissue Converting S.R.L. Advancement unit of sheets of paper in a machine for paper converting and related advancement method
US12617644B2 (en) * 2020-11-20 2026-05-05 Körber Tissue Fold S.R.L. Suction roll of a web, or sheet, of paper in a paper converting machine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006024295A1 (fr) * 2004-08-28 2006-03-09 Richard Nissen Dispositif de maintien du vide
CN102556755B (zh) * 2011-12-20 2015-06-24 金红叶纸业集团有限公司 折叠机及其吸附机构
CN109879104B (zh) * 2018-11-02 2020-09-22 全利机械股份有限公司 纤维制品吸附系统
WO2021186295A1 (fr) * 2020-03-16 2021-09-23 M.T.C. Macchine Trasformazione Carta S.R.L. Rouleau d'aspiration d'une feuille ou d'une bande de papier de type inspecté
IT202300001731A1 (it) 2023-02-02 2024-08-02 Valmet Tissue Converting S R L Macchina per la produzione di pacchi di prodotti laminari in materiale cartaceo ad elevata produttivita’ e relativo metodo di produzione

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1120432A (en) * 1912-03-30 1914-12-08 Charles H Atkins Suction-roll.
US1832974A (en) * 1928-07-30 1931-11-24 Paper & Textile Machinery Comp Suction roll
US2274641A (en) * 1938-02-07 1942-03-03 Abbott Suction roll
US2893487A (en) * 1956-01-06 1959-07-07 Beloit Iron Works Silencers for suction rolls
US3037557A (en) * 1960-07-06 1962-06-05 Time Inc Rotary vacuum cylinder
US4163548A (en) * 1978-01-23 1979-08-07 Paper Converting Machine Company Method of lapping webs and product
US4207998A (en) * 1977-05-16 1980-06-17 Bachofen & Meier, Maschinenfabrik Vacuum roller
US5104489A (en) * 1989-04-22 1992-04-14 J.M. Voith Gmbh Cylinder for the guiding of endless webs of material
US5230456A (en) * 1989-08-30 1993-07-27 De La Rue Giori, S.A. Draw-roller unit for a web-printing machine

Family Cites Families (2)

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Publication number Priority date Publication date Assignee Title
GB9320085D0 (en) * 1993-09-29 1993-11-17 Rue De Systems Ltd Vacuum feed system
DE4409036A1 (de) * 1994-03-17 1995-09-21 Jagenberg Ag Verfahren und Wickelmaschine zum Aufwickeln einer Materialbahn, insbesondere einer Papier- oder Kartonbahn

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1120432A (en) * 1912-03-30 1914-12-08 Charles H Atkins Suction-roll.
US1832974A (en) * 1928-07-30 1931-11-24 Paper & Textile Machinery Comp Suction roll
US2274641A (en) * 1938-02-07 1942-03-03 Abbott Suction roll
US2893487A (en) * 1956-01-06 1959-07-07 Beloit Iron Works Silencers for suction rolls
US3037557A (en) * 1960-07-06 1962-06-05 Time Inc Rotary vacuum cylinder
US4207998A (en) * 1977-05-16 1980-06-17 Bachofen & Meier, Maschinenfabrik Vacuum roller
US4163548A (en) * 1978-01-23 1979-08-07 Paper Converting Machine Company Method of lapping webs and product
US5104489A (en) * 1989-04-22 1992-04-14 J.M. Voith Gmbh Cylinder for the guiding of endless webs of material
US5230456A (en) * 1989-08-30 1993-07-27 De La Rue Giori, S.A. Draw-roller unit for a web-printing machine

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060177940A1 (en) * 2005-02-07 2006-08-10 Furst Eric M Optical trap separations in microfluidic flows
US20130026280A1 (en) * 2010-04-10 2013-01-31 Foshan Baosuo Paper Machinery Manufacture Co., Ltd Coreless paper roll rewinding machine without a winding assisting plate
US9073717B2 (en) * 2010-04-10 2015-07-07 Foshan Baosuo Paper Machinery Manufacture Co, Ltd. Coreless paper roll rewinding machine without a winding assisting plate
US8944360B2 (en) * 2010-05-24 2015-02-03 Foshan Baosuo Paper Machinery Manufacture Co., Ltd. Coreless paper roll rewinding machine
US20130056574A1 (en) * 2010-05-24 2013-03-07 Foshan Baosuo Paper Machinery Manufacture Co., Ltd Coreless paper roll rewinding machine
US8852068B2 (en) * 2011-04-21 2014-10-07 C.G. Bretting Manufacturing Co., Inc. Tube in a tube mechanical folding roll
US20120270716A1 (en) * 2011-04-21 2012-10-25 C.G. Bretting Manufacturing Co., Inc. Tube in a tube mechanical folding roll
CN102897605A (zh) * 2012-11-08 2013-01-30 吴江市三友针纺有限公司 一种纺织用卷筒
US10011450B2 (en) 2015-08-17 2018-07-03 C.G. Bretting Manufacturing Co., Inc. Web processing roll having directional vacuum ports
US11027933B2 (en) * 2016-03-29 2021-06-08 United Converting S.R.L. Suction roller structure for an interleaving machine
US11034541B2 (en) * 2016-07-25 2021-06-15 Maxima S.R.L. Folding roller and interfolding machine employing said roller
CN107826828A (zh) * 2017-11-24 2018-03-23 佛山市南海区德昌誉机械制造有限公司 一种动态旋转吸附腔的卫生纸卷复卷机以及复卷方法
US11078037B2 (en) * 2017-12-15 2021-08-03 Andrea Bernacchi Roller conveying unit for conveying a sheet by means of aspiration
CN111226604A (zh) * 2020-03-13 2020-06-05 石河子大学 一种红枣捡拾装置及红枣收获机
CN111924628A (zh) * 2020-07-15 2020-11-13 佛山市南海铭阳机械制造有限公司 抽式棉柔巾机的折叠棍
CN116472242A (zh) * 2020-11-20 2023-07-21 柯尔柏纸张折叠有限公司 在纸转换机中纸幅或纸片的抽吸辊
US20230406664A1 (en) * 2020-11-20 2023-12-21 Körber Tissue Fold S.R.L. Suction roll of a web, or sheet, of paper in a paper converting machine
US12617644B2 (en) * 2020-11-20 2026-05-05 Körber Tissue Fold S.R.L. Suction roll of a web, or sheet, of paper in a paper converting machine
US20250326603A1 (en) * 2022-04-28 2025-10-23 Valmet Tissue Converting S.R.L. Advancement unit of sheets of paper in a machine for paper converting and related advancement method
US20240208756A1 (en) * 2022-12-21 2024-06-27 Kyocera Document Solutions Inc. Conveying roller, web conveying device, and image forming apparatus capable of reducing scale of apparatus

Also Published As

Publication number Publication date
ES2376577T5 (es) 2019-02-14
ATE532732T1 (de) 2011-11-15
ES2376577T3 (es) 2012-03-15
EP1449799A1 (fr) 2004-08-25

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AS Assignment

Owner name: MTC-MACCHINE TRASFORMAZIONE CARTA S.R.L., ITALY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DE MATTEIS, ALESSANDRO;REEL/FRAME:014996/0807

Effective date: 20040210

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION