EP1634703A2 - Wellenstützschaft mit ausdehnbaren Elementen - Google Patents

Wellenstützschaft mit ausdehnbaren Elementen Download PDF

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Publication number
EP1634703A2
EP1634703A2 EP05108217A EP05108217A EP1634703A2 EP 1634703 A2 EP1634703 A2 EP 1634703A2 EP 05108217 A EP05108217 A EP 05108217A EP 05108217 A EP05108217 A EP 05108217A EP 1634703 A2 EP1634703 A2 EP 1634703A2
Authority
EP
European Patent Office
Prior art keywords
supporting shaft
rods
tubular member
expandable
elements
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Withdrawn
Application number
EP05108217A
Other languages
English (en)
French (fr)
Other versions
EP1634703A3 (de
Inventor
Ferdinando Lovato
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.)
Svecom-Pe Srl
Svecom P E Srl
Original Assignee
Svecom-Pe Srl
Svecom P E 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 Svecom-Pe Srl, Svecom P E Srl filed Critical Svecom-Pe Srl
Publication of EP1634703A2 publication Critical patent/EP1634703A2/de
Publication of EP1634703A3 publication Critical patent/EP1634703A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/10—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders
    • B41F27/105—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders for attaching cylindrical printing formes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/10—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B65H75/24—Constructional details adjustable in configuration, e.g. expansible
    • B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
    • B65H75/243—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages actuated by use of a fluid

Definitions

  • This invention relates to a supporting shaft with expandable elements for locking tubular members coupled to the outside of said supporting shaft and particularly suitable for use in printing decorations on toilet paper or kitchen rolls.
  • the strip of paper to print is unwound from one reel and then rewound onto another reel, while a printing cylinder is installed between the two reels, with the decorations to print embossed on its outer surface.
  • the printing process consequently takes place according to the known technique, wherein the surface of the printing cylinder is coated with ink as it turns, before coming into contact with the strip of paper on which the decorations are to be printed.
  • the printing cylinders belonging to the known technology consist substantially of a solid cylindrical body with pins at each end for attaching the cylinder to the printing machine and connecting it to the driving means that make it rotate.
  • a specific cylinder, embossed with a particular decoration, has to be used for each different decoration to print.
  • the outer surface of the cylinders on which the decorations are embossed has to be accurately ground and the tolerance on the eccentricity of the cylinder must not exceed 0.03 mm.
  • the cylinder manufacturing process is consequently complex and costly, especially in the case of large-diameter cylinders of considerable length, which are also heavy and difficult to handle and store.
  • the manufacturer has to cope with the costs deriving from the need to keep a large number of cylinders available, each suitable for printing a different decoration.
  • a further drawback is represented by the high manufacturing costs for each cylinder, deriving from the above-described narrow dimensional and geometrical tolerances with which it must be made.
  • a further, acknowledged drawback concerns the considerable amount of time it takes to change printing cylinders when the decoration to print has to be changed.
  • printing cylinders consisting of a tubular member with the decorations to print embossed on its outer surface, supported internally by a supporting shaft fitted with expandable radial elements.
  • the radial outward and return movement of the expandable elements is controlled by pneumatic or hydraulic units installed at the ends of the expandable shaft.
  • the same expandable supporting shaft could hold several tubular members, each with a different pattern to print.
  • Expandable supporting shafts of the type described above have already been described in the Italian patents IT 1210560 and IT 1205550 (both registered in the name of the applicant for the present patent), which are used to support tubular members made of cardboard or other material of relatively limited stiffness, on which a sheet of paper is wound.
  • the object of the present invention is to overcome the drawbacks listed above.
  • a first object of the invention is to implement a supporting shaft with expandable elements whose geometrical and dimensional tolerances are narrower than those of the supporting shafts with expandable elements of known type.
  • Another object is to produce a supporting shaft with expandable elements that is capable of supporting a metal tubular printing member and thus obtain a composite printing cylinder that has dimensional and geometrical tolerances corresponding to those obtained in the solid printing cylinders of known type.
  • a further object of the invention is to produce a supporting shaft for tubular metal printing members that takes less time to install on the printing machine than the solid printing cylinders of known type.
  • Another object of the invention is to produce a supporting shaft for tubular printing members that involves significantly lower handling costs compared to the solid printing cylinders of known type.
  • the supporting shaft with expandable elements forming the object of the invention comprises a cylindrical tubular member 2, identifying a longitudinal axis X, complete with supporting pins 3a, 3b situated at its ends.
  • a plurality of expandable elements 4 are installed on the outside of the tubular member 2, aligned circumferentially with one another around circumferential bands 5 lying side by side, one after the other, along the longitudinal axis X.
  • the expandable elements 4 are associated with actuator units 6, each of which is installed inside the tubular member 2 in line with a given band 5 of expandable elements 4.
  • the supporting shaft 1 also comprises operating means 7 suitable for driving the actuator units 6, which can be controlled from the outside of the shaft by an operator, as explained below.
  • each one of the actuator units 6 comprises a plurality of juxtaposed slides 8 slidingly coupled circumferentially around the outside of a central tubular element 9 that connects two facing and coaxial circular flanges 10, 11 fixed to the inner surface 2a of the tubular member 2.
  • the circular flanges 10, 11 are connected to each other by means of threaded circumferential ties 12 fitted at their ends with truncated cone-shaped centering elements 13, 14.
  • the truncated cone-shaped centering elements 13, 14 cooperate respectively with first truncated cone-shaped seats 15, 16 in the flanges 10, 11, and with second truncated cone-shaped seats 17, 18 in ring-shaped elements 19, 20 whose outer cylindrical surface 19a, 20a is in contact with the inner surface 2a of the tubular member 2.
  • Tightening the ties 12 allows the radial locking of each actuator unit 6 in the tubular member 2 to be obtained.
  • each slide 8 is connected to each corresponding expandable element 4 by means of a connecting rod 21 provided with a first hinge 22 for coupling it to the slide 8 and a second hinge 23 for coupling it to the expandable element 4.
  • the first hinge 22 is constituted by a semispherical head 22a, belonging to the first end 21a of the connecting rod 21, that fits into a corresponding semispherical seat 8a in the slide 8.
  • the second hinge 23 is constituted by a semispherical seat 23a in the second end 21b of the connecting rod 21, a semispherical seat 4a in the expandable element 4 , and a sphere 24 inserted between said seats 4a, 23a .
  • each slide 8 is slidingly coupled to the outside of the tubular element 9 by means of a revolving bearing 25, that is preferably but not necessarily of the type with cylindrical rollers 25a contained in a cage 25b.
  • the operating means 7 for driving the actuator units 6 consist of a plurality of actuating rods 26 installed centrally inside the tubular member 2 and sliding in the direction identified by the longitudinal axis X through the central tubular elements 9 of the actuator units 6.
  • the actuating rods 26 are arranged end-to-end in contact with one another and, as shown in fig. 2, they are divided into a first group 26a installed on the side of the first end 3a of the tubular member 2 and a second group 26b installed on the side of the second end 3b of the tubular member 2.
  • the rods 26 in the first group of rods 26a are displaced along the axis X by the first terminal rods 26', and the rods 26 in the second group of rods 26b are displaced along the axis X by the second terminal rods 26", which, as shown in fig. 2, are respectively installed in line with the first end 3a and the second end 3b of the tubular member 2.
  • terminal rods 26' and 26" are also mechanically associated with a first and a second fluid-operated actuator unit, respectively 27a and 27b, which drive them axially along the axis X, as explained later on.
  • Return springs 28 are interposed inside each tubular element 9 and outside each respective actuating rod passing therethrough to ensure the elastic return from any displacement of the actuating rods 26 and terminal rods 26' and 26" in the direction opposite to the direction in which they are driven by the actuator units 27a and 27b whenever the thrust exerted by said actuator units ceases.
  • Each spring 28 also comes between a first abutment surface 29 on the tubular element 9 and a second abutment surface 30 on the respective rod 26, 26' and 26".
  • Means 31 for thrusting the slide 8 are associated with the end of each actuating rod 26, as illustrated in fig. 5, which consist of a circular flange 32 keyed onto the end of each actuating rod 26, and fitted with a plurality of pins 33 connecting it to the slides 8.
  • the first fluid-operated actuator unit 27a is installed in line with the first end 3a of the tubular member 2 and comprises ring-shaped pistons 34, 35 slidingly coupled in corresponding compression chambers 36, 37 defined inside the tubular member 2 and mechanically connected to the first terminal rod 26a .
  • the first fluid-operated actuator unit 27a thus causes the axial displacement of the terminal rod 26a and of the other actuating rods 26 in the first group 26a in the direction identified by the longitudinal axis X.
  • the second fluid-operated actuator unit 27b is installed in line with the second end 3b of the tubular member 2 and comprises ring-shaped pistons 38, 39 slidingly coupled in corresponding compression chambers 40, 41 defined inside the tubular member 2 and mechanically connected to the second terminal rod 26b.
  • the second fluid-operated actuator 27b thus causes the axial displacement of the terminal rod 26b and of the other actuating rods 26 in the second group 26b in the direction identified by the longitudinal axis X.
  • a compressed air feed pipe 42 connected to a delivery sleeve 43 that is accessible to an operator from the outside, serves all the chambers forming part of the fluid-operated actuators 27a and 27b.
  • delivering compressed air to the compression chambers of the fluid-operated actuators 27a, 27b causes the displacement of the ring-shaped pistons 34, 35, 38, 39 and of the terminal actuating rods 26', 26", which induce a sliding movement of the consecutive actuating rods 26 mechanically lying end-to-end.
  • the rods in the first group 26a are displaced in the direction, indicated by the arrow X', while the rods in the second group 26b are displaced in the opposite direction, indicated by the arrow X".
  • the tubular member 50 (the outer surface of which is embossed with the decoration to print on the paper) can be fitted onto the supporting shaft 1, as shown in fig. 1 and fig. 2.
  • said return stroke takes up the slack 45 when the connecting rods 21 are in the radial position, as shown in fig. 4.
  • the object of the invention to produce a shaft with expandable elements with narrower tolerances than those of the known expandable shafts is achieved by means of the hinged connecting rods 21 and caged-roller revolving bearings 25 that substantially reduce to nil any slack between the reciprocally moving parts.
  • the object of the invention to produce an expandable shaft capable of supporting metal tubular printing members and of forming printing cylinders with dimensional and geometrical tolerances comparable with those obtainable using solid printing cylinders of known type is also achieved.
  • the object of reducing the handling costs is also achieved since the cost of a number of tubular members and one supporting shaft with expandable elements is distinctly lower than the cost of an equivalent number of solid printing cylinders.
  • the expandable shaft of the invention may undergo structural changes with a view to improving its functionality or making it more economical to manufacture.
EP05108217A 2004-09-10 2005-09-07 Wellenstützschaft mit ausdehnbaren Elementen Withdrawn EP1634703A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000213A ITVI20040213A1 (it) 2004-09-10 2004-09-10 Albero di supporto ad elementi espansibili

Publications (2)

Publication Number Publication Date
EP1634703A2 true EP1634703A2 (de) 2006-03-15
EP1634703A3 EP1634703A3 (de) 2007-04-11

Family

ID=35447780

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05108217A Withdrawn EP1634703A3 (de) 2004-09-10 2005-09-07 Wellenstützschaft mit ausdehnbaren Elementen

Country Status (2)

Country Link
EP (1) EP1634703A3 (de)
IT (1) ITVI20040213A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103508229A (zh) * 2013-10-08 2014-01-15 谢宏杰 一种用于塑料板材收卷的无芯卷取装置
CN107206780A (zh) * 2015-03-24 2017-09-26 昭和铝罐株式会社 印版滚筒
CN108313832A (zh) * 2018-03-14 2018-07-24 大连奥特马工业有限公司 双气路滑差轴
CN111362066A (zh) * 2020-03-31 2020-07-03 田中华 一种便于使用的防水材料用收卷装置
US11305961B2 (en) 2018-07-30 2022-04-19 Sealed Air Corporation (Us) Mandrel for holding and aligning film supply rolls
DE102021129739A1 (de) 2021-11-15 2023-05-17 Matthews International GmbH Sleeve-Wechsel-Kalander für das rotative Verprägen einer mehrlagigen Tissue-Bahn

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258815B (de) * 1962-07-28 1968-01-18 Richard Kauschka Spindel zum Festspannen rohrfoermiger Walzenmaentel fuer gravierte Druckwalzen
FR2201733A5 (de) * 1972-10-03 1974-04-26 Draeger Freres
US4917013A (en) * 1988-08-31 1990-04-17 Sidney Katz Mandrel with multiple locking heads
DE4106062C1 (de) * 1991-02-27 1992-06-04 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
EP0527293A1 (de) * 1991-04-19 1993-02-17 Erminio Rossini S.P.A. Dorn mit zusammenwirkender Hülse, insbesondere für Druckzylinder für Rotationstiefdruckmaschinen
DE9211162U1 (de) * 1992-08-20 1994-01-27 Kuesters Eduard Maschf Walze
DE9314568U1 (de) * 1993-09-27 1995-02-02 Kuesters Eduard Maschf Walze
WO2005105422A1 (en) * 2004-05-05 2005-11-10 Fabio Perini S.P.A. Roller with interchangeable sleeve for embossing units and embossing units comprising said roller

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258815B (de) * 1962-07-28 1968-01-18 Richard Kauschka Spindel zum Festspannen rohrfoermiger Walzenmaentel fuer gravierte Druckwalzen
FR2201733A5 (de) * 1972-10-03 1974-04-26 Draeger Freres
US4917013A (en) * 1988-08-31 1990-04-17 Sidney Katz Mandrel with multiple locking heads
DE4106062C1 (de) * 1991-02-27 1992-06-04 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
EP0527293A1 (de) * 1991-04-19 1993-02-17 Erminio Rossini S.P.A. Dorn mit zusammenwirkender Hülse, insbesondere für Druckzylinder für Rotationstiefdruckmaschinen
DE9211162U1 (de) * 1992-08-20 1994-01-27 Kuesters Eduard Maschf Walze
DE9314568U1 (de) * 1993-09-27 1995-02-02 Kuesters Eduard Maschf Walze
WO2005105422A1 (en) * 2004-05-05 2005-11-10 Fabio Perini S.P.A. Roller with interchangeable sleeve for embossing units and embossing units comprising said roller

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103508229A (zh) * 2013-10-08 2014-01-15 谢宏杰 一种用于塑料板材收卷的无芯卷取装置
CN103508229B (zh) * 2013-10-08 2016-03-02 谢宏杰 一种用于塑料板材收卷的无芯卷取装置
CN107206780B (zh) * 2015-03-24 2019-08-02 昭和铝罐株式会社 印版滚筒
KR20170129100A (ko) * 2015-03-24 2017-11-24 쇼와 알루미늄 캔 가부시키가이샤 판동
EP3275656A4 (de) * 2015-03-24 2018-09-05 Showa Aluminum Can Corporation Plattenzylinder
CN107206780A (zh) * 2015-03-24 2017-09-26 昭和铝罐株式会社 印版滚筒
US10688777B2 (en) 2015-03-24 2020-06-23 Showa Aluminum Can Corporation Plate cylinder
CN108313832A (zh) * 2018-03-14 2018-07-24 大连奥特马工业有限公司 双气路滑差轴
CN108313832B (zh) * 2018-03-14 2024-02-27 大连奥特马工业有限公司 双气路滑差轴
US11305961B2 (en) 2018-07-30 2022-04-19 Sealed Air Corporation (Us) Mandrel for holding and aligning film supply rolls
CN111362066A (zh) * 2020-03-31 2020-07-03 田中华 一种便于使用的防水材料用收卷装置
CN111362066B (zh) * 2020-03-31 2021-08-24 湖南冠业防水材料有限公司 一种便于使用的防水材料用收卷装置
DE102021129739A1 (de) 2021-11-15 2023-05-17 Matthews International GmbH Sleeve-Wechsel-Kalander für das rotative Verprägen einer mehrlagigen Tissue-Bahn

Also Published As

Publication number Publication date
EP1634703A3 (de) 2007-04-11
ITVI20040213A1 (it) 2004-12-10

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