EP0739837A1 - Wickelvorrichtung - Google Patents

Wickelvorrichtung Download PDF

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Publication number
EP0739837A1
EP0739837A1 EP96830234A EP96830234A EP0739837A1 EP 0739837 A1 EP0739837 A1 EP 0739837A1 EP 96830234 A EP96830234 A EP 96830234A EP 96830234 A EP96830234 A EP 96830234A EP 0739837 A1 EP0739837 A1 EP 0739837A1
Authority
EP
European Patent Office
Prior art keywords
bobbin
paper
arms
motorized
dragging
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Withdrawn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
EP96830234A
Other languages
English (en)
French (fr)
Inventor
Luciano Meschi
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.)
Industria Grafica Meschi SRL
Original Assignee
Industria Grafica Meschi 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 Industria Grafica Meschi SRL filed Critical Industria Grafica Meschi SRL
Publication of EP0739837A1 publication Critical patent/EP0739837A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/16—Means for tensioning or winding the web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/02—Supporting web roll
    • B65H16/06—Supporting web roll both-ends type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/10—Arrangements for effecting positive rotation of web roll
    • B65H16/103—Arrangements for effecting positive rotation of web roll in which power is applied to web-roll spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/02—Supporting web roll
    • B65H18/04—Interior-supporting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/10—Mechanisms in which power is applied to web-roll spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/413—Supporting web roll
    • B65H2301/4134—Both ends type arrangement
    • B65H2301/41346—Both ends type arrangement separate elements engaging each end of the roll (e.g. chuck)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/90—Machine drive
    • B65H2403/94—Other features of machine drive
    • B65H2403/942—Bidirectional powered handling device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/11—Length
    • B65H2511/112—Length of a loop, e.g. a free loop or a loop of dancer rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/14—Diameter, e.g. of roll or package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/21—Angle
    • B65H2511/212—Rotary position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/51—Encoders, e.g. linear

Definitions

  • the present invention relates to the field of paper and more precisely to an apparatus for rolling a web of paper on a bobbin as it comes out of a machine for its processing and/or printing.
  • the paper In machines for processing or printing on paper, the paper is often rolled on a bobbin at the output of the machine as an alternative to when it is cut into sheets.
  • the bobbin is mounted on a core which is held by two protruding tapered shafts mounted on idle rotatable supports.
  • the rolling takes place by means of motorized dragging rollers which cause rotation by a tangential action on the paper.
  • the bobbin which is formed starting from a core large enough to make rolling possible in an initial step, gradually increases in diameter. Its growing size is controlled by a mechanical gauge formed by an arm which progressively varies its angulation and has a roller at one end in physical contact with the paper.
  • the pulling of the paper is measured by means of load cells located on the supports of the bodies which pull the paper.
  • the bobbin In axially dragged winding apparatus, widely used in the paper processing industry, the bobbin is suspended on a motorized expanding mandrel which puts it into rotation.
  • the problem of this system lies in its dimensions and cost as well as in the fact that the mandrel must be of a significant weight, thus making it also necessary to use a core having a diameter large enough to be put on the mandrel and robust enough to withstand the internal forces of expansion.
  • the core is usually formed in compressed cardboard that is sufficiently thick and not reusable.
  • the paper to be rolled in a bobbin comes out of the machine operating upstream already taut. Often, however, it is not taut and a loop is provided that is controlled, for example, by signals coming from ultrasound sensors that command the acceleration or deceleration of the tangential draggers or of the mandrel. In this latter case, it is necessary to provide large stretching means which must exert a constant pull on the paper to make the rolling possible.
  • One object of the present invention is to provide an apparatus for rolling a web of paper on a bobbin which is extremely simple to construct and which makes it possible to drag the core axially at a controlled speed without requiring an expanding mandrel.
  • a second object of the present invention is to provide an apparatus for rolling a web of paper on a bobbin in which it is possible to determine the size of the bobbin without having to use diameter sensors.
  • a further object of the present invention is to provide an apparatus for rolling a web of paper on a bobbin which makes it possible to work with paper that is not taut without having to use large stretching systems or gauges of the stretch of the paper.
  • a final object of the present invention is to provide an apparatus for rolling a web of paper on a bobbin which can also advantageously work to unroll the paper from a bobbin.
  • the apparatus according to the present invention for rolling a web of paper on a bobbin, whose novel feature is that the suspension means of the bobbin comprise a pair of arms connected in a rotatable manner to a support located at the output of the paper processing machine.
  • a rigid core rotationally engages between the ends of the arms and with axial dragging mandrels.
  • At least one of said mandrels is set in rotation by motorized dragging means inside the arms.
  • Each mandrel engages with the core only at its ends by reciprocal engagement means.
  • at least one encoder is provided to measure the linear development of the paper by means of the number of rotations made by the core.
  • stretching means are provided for it which preferably comprise two successive pairs of dragging rollers, the second having a slightly greater surface speed than the first.
  • the direction of rotation of the motorized dragging means of the or each mandrel can be reversible so that the apparatus is able to work also to unroll the paper.
  • an apparatus 2 is provided for the rolling of a web 4 of paper on a bobbin 3.
  • Bobbin 3 is rolled on a core 5 supported by suspension means comprising two arms 6 having mandrels 7 at their ends which engage on core 5 which, preferably, is a tubular core in rigid plastic which could advantageously be recycled plastic.
  • Arms 6 are rotationally connected to a support 8 with respect to which they can rotate in such a way as to raise or lower bobbin 3 from or toward the floor. Furthermore, at least one of the two arms 6 can translate horizontally in a direction transversal to the paper in order to make possible the nearing or distancing of mandrels 7 and thus their disengagement from or engagement with core 5.
  • core 5 has grooves 10 at its ends, spaced at a circumferential distance of 90° from one another, in which teeth 11 provided on mandrel 7 engage.
  • a motor 12 is provided with a reduction gear 13 which sets in rotation, by means of a taper fit 14, an axle 15 integral with mandrel 7.
  • an encoder 16 which is electrically connected to a computer (not shown) which controls the speed of motor 12 and the angular position of arms 6 by means of motors 17 (partially visible in figures 1 to 4).
  • web of paper 4 is rolled on bobbin 3 in such a way that the latter gradually lifts itself from floor 18 remaining close to it but never coming into contact with it.
  • encoder 16 it is possible to automatically calculate the diameter of bobbin 3 in an indirect manner by a simple mathematical correlation between the rotation of core 5 and the linear development of the paper being rolled on it.
  • bobbin 3 At the completion of the rolling, or at any intentional or unintentional interruption of the rolling, bobbin 3 will always be at a minimum height off floor 18, so that the lowering time of arms 6 and spreading time of mandrels 7 is minimal, thus making it possible to remove said bobbin and immediately replace it with a new core on which to roll the following bobbin.
  • Paper 4 comes from a loop, indicated with 19 in figure 2, which is controlled by photoelectric cell sensors along lines 20 and is located directly upstream from apparatus 2. Paper 4 is then made taut in order to allow for its rolling on bobbin 5 thanks to the presence of a known stretching apparatus.
  • This is preferably a paper feeding apparatus comprising two pairs of dragging rollers located inside support 8 and having slightly different speeds from one another, as described in European patent application 0695714 in the name of the present applicant and for this reason not shown and described in detail. More precisely, the first pair is placed upstream and has a rotational speed slightly slower than the second pair which, having a slightly faster rotational speed, pulls the paper taut independently of whether upstream from the first pair of rollers the paper is taut or not.
  • the presence of these two pairs of dragging rollers also makes it possible to control the pulling of the paper without having to use load cells as is necessary in the known technology.
  • the two pairs of dragging rollers are operated by torque controlled motors, which respond as a function of the pull of the paper, automatically bringing the tension to normal values without the risk of tearing the paper.
  • the apparatus described above finally, has the advantage that it can also be used to unroll paper from a bobbin with the simple inversion of the direction of rotation of motor 12. Such unrolling can be needed when, for instance, during rolling, the inversion of movement is required for the processing or printing of the paper.
  • the use of the apparatus for unrolling can also be systematic, with the advantage that the same apparatus used for a certain period of time for rolling at the output of a machine can be moved to the input for unrolling.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)
EP96830234A 1995-04-24 1996-04-24 Wickelvorrichtung Withdrawn EP0739837A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT95FI000079A IT1278653B1 (it) 1995-04-24 1995-04-24 Apparecchiatura per l'avvolgimento in bobina di un nastro di carta, in particolare ma non esclusivamente carta non tesa, in uscita da una
ITFI950079 1995-04-24

Publications (1)

Publication Number Publication Date
EP0739837A1 true EP0739837A1 (de) 1996-10-30

Family

ID=11351203

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96830234A Withdrawn EP0739837A1 (de) 1995-04-24 1996-04-24 Wickelvorrichtung

Country Status (2)

Country Link
EP (1) EP0739837A1 (de)
IT (1) IT1278653B1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005120996A1 (en) * 2004-06-12 2005-12-22 Tibble, Mary Roll drive arm for converting and slitting machine
WO2012103268A1 (en) * 2011-01-28 2012-08-02 Eastman Kodak Company Core driving method for printer web medium supply
CN104925572A (zh) * 2015-06-23 2015-09-23 浙江环龙机器有限公司 一种原纸分切收卷设备
CN105035799A (zh) * 2015-06-23 2015-11-11 浙江环龙机器有限公司 一种原纸分切机的升降装置
CN105291609A (zh) * 2011-06-29 2016-02-03 富士通电子零件有限公司 打印机
CN108058988A (zh) * 2017-12-15 2018-05-22 佛山市万良商贸有限公司 一种原纸自动夹取系统

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR546066A (de) * 1922-10-27
DE2130013A1 (de) * 1971-06-18 1972-12-21 Abk Appbau Krefeld Gmbh Verfahrare Wickeleinrichtung mit Hebeeinrichtung zum spannungsgleichen Aufwickeln vonTextilien,Papier oder Kunsstoffolien
DE2739573A1 (de) * 1976-09-14 1978-03-23 Asea Ab Registriervorrichtung mit einem aufzuwickelnden registrierstreifen
US4088256A (en) * 1973-09-18 1978-05-09 U.S. Philips Corporation Device for printing data
DE3205175A1 (de) * 1982-02-13 1983-08-25 W. Schlafhorst & Co, 4050 Mönchengladbach Wickelmaschine zum auf- und/oder abwickeln bahnfoermig gefuehrten gutes
JPS62211256A (ja) * 1986-03-11 1987-09-17 Mitsubishi Paper Mills Ltd ウエブの巻取及び巻出方法
EP0324707A2 (de) * 1988-01-13 1989-07-19 Beloit Corporation Bahnwickelvorrichtung
EP0397594A2 (de) * 1989-05-10 1990-11-14 Beloit Technologies, Inc. Vorrichtung zum Steuern der Rolldichte
SU1622259A1 (ru) * 1986-02-04 1991-01-23 Всесоюзный научно-исследовательский и проектно-конструкторский институт по автоматизированному электроприводу в промышленности, сельском хозяйстве и на транспорте Устройство дл управлени перемоточными станками
DE9319402U1 (de) * 1993-12-17 1994-03-03 Goebel Gmbh Maschf Einrichtung zum Aufwickeln

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR546066A (de) * 1922-10-27
DE2130013A1 (de) * 1971-06-18 1972-12-21 Abk Appbau Krefeld Gmbh Verfahrare Wickeleinrichtung mit Hebeeinrichtung zum spannungsgleichen Aufwickeln vonTextilien,Papier oder Kunsstoffolien
US4088256A (en) * 1973-09-18 1978-05-09 U.S. Philips Corporation Device for printing data
DE2739573A1 (de) * 1976-09-14 1978-03-23 Asea Ab Registriervorrichtung mit einem aufzuwickelnden registrierstreifen
DE3205175A1 (de) * 1982-02-13 1983-08-25 W. Schlafhorst & Co, 4050 Mönchengladbach Wickelmaschine zum auf- und/oder abwickeln bahnfoermig gefuehrten gutes
SU1622259A1 (ru) * 1986-02-04 1991-01-23 Всесоюзный научно-исследовательский и проектно-конструкторский институт по автоматизированному электроприводу в промышленности, сельском хозяйстве и на транспорте Устройство дл управлени перемоточными станками
JPS62211256A (ja) * 1986-03-11 1987-09-17 Mitsubishi Paper Mills Ltd ウエブの巻取及び巻出方法
EP0324707A2 (de) * 1988-01-13 1989-07-19 Beloit Corporation Bahnwickelvorrichtung
EP0397594A2 (de) * 1989-05-10 1990-11-14 Beloit Technologies, Inc. Vorrichtung zum Steuern der Rolldichte
DE9319402U1 (de) * 1993-12-17 1994-03-03 Goebel Gmbh Maschf Einrichtung zum Aufwickeln

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 9139, Derwent World Patents Index; AN 91-286879, XP002011594 *
PATENT ABSTRACTS OF JAPAN vol. 12, no. 64 (M - 672) 26 February 1988 (1988-02-26) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005120996A1 (en) * 2004-06-12 2005-12-22 Tibble, Mary Roll drive arm for converting and slitting machine
WO2012103268A1 (en) * 2011-01-28 2012-08-02 Eastman Kodak Company Core driving method for printer web medium supply
CN105291609A (zh) * 2011-06-29 2016-02-03 富士通电子零件有限公司 打印机
US10384479B2 (en) 2011-06-29 2019-08-20 Fujitsu Component Limited Printer with tensioning guide unit
CN104925572A (zh) * 2015-06-23 2015-09-23 浙江环龙机器有限公司 一种原纸分切收卷设备
CN105035799A (zh) * 2015-06-23 2015-11-11 浙江环龙机器有限公司 一种原纸分切机的升降装置
CN105035799B (zh) * 2015-06-23 2017-02-01 浙江环龙机器有限公司 一种原纸分切机的升降装置
CN108058988A (zh) * 2017-12-15 2018-05-22 佛山市万良商贸有限公司 一种原纸自动夹取系统

Also Published As

Publication number Publication date
ITFI950079A1 (it) 1996-10-24
IT1278653B1 (it) 1997-11-27
ITFI950079A0 (it) 1995-04-24

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