EP1449799A1 - Walze zum Fördern einer Papierbahn oder eines Papierblattes in einer Papierverarbeitungsmaschine und dabei erzieltes Transportverfahren - Google Patents
Walze zum Fördern einer Papierbahn oder eines Papierblattes in einer Papierverarbeitungsmaschine und dabei erzieltes Transportverfahren Download PDFInfo
- Publication number
- EP1449799A1 EP1449799A1 EP03425091A EP03425091A EP1449799A1 EP 1449799 A1 EP1449799 A1 EP 1449799A1 EP 03425091 A EP03425091 A EP 03425091A EP 03425091 A EP03425091 A EP 03425091A EP 1449799 A1 EP1449799 A1 EP 1449799A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- paper
- tubular body
- suction
- holes
- roller
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 7
- 238000004891 communication Methods 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 19
- 238000005520 cutting process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
Images
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.
- 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 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.
- 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.
- 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.
- the present invention is applicable at a desired interfolding, rewinding or winding machine which uses a roller according to the invention.
Landscapes
- Advancing Webs (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Replacement Of Web Rolls (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03425091A EP1449799A1 (de) | 2003-02-18 | 2003-02-18 | Walze zum Fördern einer Papierbahn oder eines Papierblattes in einer Papierverarbeitungsmaschine und dabei erzieltes Transportverfahren |
US10/779,940 US20040159999A1 (en) | 2003-02-18 | 2004-02-17 | Conveying roller for a paper web, machines equipped therewith and methods of use |
AT04003595T ATE532732T1 (de) | 2003-02-18 | 2004-02-18 | Maschine zum ineinanderfalten einer bahn oder von blättern mit einer vakuumtransportwalze |
EP04003595.8A EP1457444B2 (de) | 2003-02-18 | 2004-02-18 | Maschine zum Ineinanderfalten einer Bahn oder von Blättern mit einer Vakuumtransportwalze |
ES04003595T ES2376577T5 (es) | 2003-02-18 | 2004-02-18 | Máquina de interplegado de una banda u hoja de papel con un rodillo de transporte de vacío |
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 (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03425091A EP1449799A1 (de) | 2003-02-18 | 2003-02-18 | Walze zum Fördern einer Papierbahn oder eines Papierblattes in einer Papierverarbeitungsmaschine und dabei erzieltes Transportverfahren |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1449799A1 true EP1449799A1 (de) | 2004-08-25 |
Family
ID=32731640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03425091A Withdrawn EP1449799A1 (de) | 2003-02-18 | 2003-02-18 | Walze zum Fördern einer Papierbahn oder eines Papierblattes in einer Papierverarbeitungsmaschine und dabei erzieltes Transportverfahren |
Country Status (4)
Country | Link |
---|---|
US (1) | US20040159999A1 (de) |
EP (1) | EP1449799A1 (de) |
AT (1) | ATE532732T1 (de) |
ES (1) | ES2376577T5 (de) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006024295A1 (en) * | 2004-08-28 | 2006-03-09 | Richard Nissen | A vacuum holding device |
CN102556755A (zh) * | 2011-12-20 | 2012-07-11 | 金红叶纸业集团有限公司 | 折叠机及其吸附机构 |
EP2514698A2 (de) | 2011-04-21 | 2012-10-24 | C.G. Bretting Manufacturing Co., Inc. | Rohr in einer mechanischen Rohrfaltrolle |
EP2578522A1 (de) * | 2010-05-24 | 2013-04-10 | Foshan Baosuo Paper Machinery Manufacture Co. Ltd | Maschine zur neuaufwicklung einer kernlosen papierrolle |
CN109879104A (zh) * | 2018-11-02 | 2019-06-14 | 全利机械股份有限公司 | 纤维制品吸附*** |
WO2019116216A1 (en) * | 2017-12-15 | 2019-06-20 | Andrea Bernacchi | A roller conveying unit for conveying a sheet by means of aspiration |
WO2021186295A1 (en) * | 2020-03-16 | 2021-09-23 | M.T.C. Macchine Trasformazione Carta S.R.L. | Suction roll of a sheet or web of paper of inspectable type |
Families Citing this family (9)
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 |
CN101920860B (zh) * | 2010-04-10 | 2012-02-15 | 佛山市宝索机械制造有限公司 | 无需助卷板的无芯纸卷复卷机 |
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 |
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 |
CN107826828B (zh) * | 2017-11-24 | 2023-11-14 | 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 |
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 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3037557A (en) * | 1960-07-06 | 1962-06-05 | Time Inc | Rotary vacuum cylinder |
US5230456A (en) * | 1989-08-30 | 1993-07-27 | De La Rue Giori, S.A. | Draw-roller unit for a web-printing machine |
DE4409036A1 (de) * | 1994-03-17 | 1995-09-21 | Jagenberg Ag | Verfahren und Wickelmaschine zum Aufwickeln einer Materialbahn, insbesondere einer Papier- oder Kartonbahn |
EP1059254A1 (de) * | 1993-09-29 | 2000-12-13 | De La Rue International Limited | Apparat zum Zuführen und Bereitstellen von Bögen |
Family Cites Families (7)
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 |
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 |
DE3913292A1 (de) * | 1989-04-22 | 1990-10-25 | Voith Gmbh J M | Zylinder zur fuehrung von laufenden warenbahnen |
-
2003
- 2003-02-18 EP EP03425091A patent/EP1449799A1/de not_active Withdrawn
-
2004
- 2004-02-17 US US10/779,940 patent/US20040159999A1/en not_active Abandoned
- 2004-02-18 AT AT04003595T patent/ATE532732T1/de active
- 2004-02-18 ES ES04003595T patent/ES2376577T5/es not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3037557A (en) * | 1960-07-06 | 1962-06-05 | Time Inc | Rotary vacuum cylinder |
US5230456A (en) * | 1989-08-30 | 1993-07-27 | De La Rue Giori, S.A. | Draw-roller unit for a web-printing machine |
EP1059254A1 (de) * | 1993-09-29 | 2000-12-13 | De La Rue International Limited | Apparat zum Zuführen und Bereitstellen von Bögen |
DE4409036A1 (de) * | 1994-03-17 | 1995-09-21 | Jagenberg Ag | Verfahren und Wickelmaschine zum Aufwickeln einer Materialbahn, insbesondere einer Papier- oder Kartonbahn |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006024295A1 (en) * | 2004-08-28 | 2006-03-09 | Richard Nissen | A vacuum holding device |
EP2578522A1 (de) * | 2010-05-24 | 2013-04-10 | Foshan Baosuo Paper Machinery Manufacture Co. Ltd | Maschine zur neuaufwicklung einer kernlosen papierrolle |
EP2578522A4 (de) * | 2010-05-24 | 2014-01-15 | Foshan Baosuo Paper Machinery Manufacture Co Ltd | Maschine zur neuaufwicklung einer kernlosen papierrolle |
US8852068B2 (en) | 2011-04-21 | 2014-10-07 | C.G. Bretting Manufacturing Co., Inc. | Tube in a tube mechanical folding roll |
EP2514698A3 (de) * | 2011-04-21 | 2013-03-20 | C.G. Bretting Manufacturing Co., Inc. | Rohr in einer mechanischen Rohrfaltrolle |
EP2514698A2 (de) | 2011-04-21 | 2012-10-24 | C.G. Bretting Manufacturing Co., Inc. | Rohr in einer mechanischen Rohrfaltrolle |
EP2514698B1 (de) | 2011-04-21 | 2017-10-18 | C.G. Bretting Manufacturing Co., Inc. | Rohr in einer rotatorischen Faltrolle |
CN102556755A (zh) * | 2011-12-20 | 2012-07-11 | 金红叶纸业集团有限公司 | 折叠机及其吸附机构 |
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 |
WO2019116216A1 (en) * | 2017-12-15 | 2019-06-20 | Andrea Bernacchi | A roller conveying unit for conveying a sheet by means of aspiration |
CN111566030A (zh) * | 2017-12-15 | 2020-08-21 | 安德里亚·伯纳奇 | 用于通过抽吸输送片材的辊式输送单元 |
CN111566030B (zh) * | 2017-12-15 | 2021-07-27 | 安德里亚·伯纳奇 | 用于通过抽吸输送片材的辊式输送单元 |
US11078037B2 (en) | 2017-12-15 | 2021-08-03 | Andrea Bernacchi | Roller conveying unit for conveying a sheet by means of aspiration |
CN109879104A (zh) * | 2018-11-02 | 2019-06-14 | 全利机械股份有限公司 | 纤维制品吸附*** |
WO2021186295A1 (en) * | 2020-03-16 | 2021-09-23 | M.T.C. Macchine Trasformazione Carta S.R.L. | Suction roll of a sheet or web of paper of inspectable type |
Also Published As
Publication number | Publication date |
---|---|
US20040159999A1 (en) | 2004-08-19 |
ES2376577T5 (es) | 2019-02-14 |
ES2376577T3 (es) | 2012-03-15 |
ATE532732T1 (de) | 2011-11-15 |
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