EP1238932B1 - Dispositif pour enrouler une bande - Google Patents

Dispositif pour enrouler une bande Download PDF

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Publication number
EP1238932B1
EP1238932B1 EP20020002431 EP02002431A EP1238932B1 EP 1238932 B1 EP1238932 B1 EP 1238932B1 EP 20020002431 EP20020002431 EP 20020002431 EP 02002431 A EP02002431 A EP 02002431A EP 1238932 B1 EP1238932 B1 EP 1238932B1
Authority
EP
European Patent Office
Prior art keywords
carrier drum
winding device
web
drum
web winding
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.)
Expired - Lifetime
Application number
EP20020002431
Other languages
German (de)
English (en)
Other versions
EP1238932A2 (fr
EP1238932A3 (fr
Inventor
Thomas Hermsen
Stefan Feyen
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
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 Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1238932A2 publication Critical patent/EP1238932A2/fr
Publication of EP1238932A3 publication Critical patent/EP1238932A3/fr
Application granted granted Critical
Publication of EP1238932B1 publication Critical patent/EP1238932B1/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
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/28—Attaching the leading end of the web to the replacement web-roll core or 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
    • B65H2301/414—Winding
    • B65H2301/4141—Preparing winding process
    • B65H2301/41414—Preparing winding process involving pulper or doctor blade or air knife
    • 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
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4187—Relative movement of core or web roll in respect of mandrel
    • B65H2301/4189—Cutting
    • B65H2301/41898—Cutting threading tail and leading it to new core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/23—Winding machines
    • B65H2408/236—Pope-winders with first winding on an arc of circle and secondary winding along rails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/84—Paper-making machines

Definitions

  • the invention relates to a web winding device with a spool, a carrier drum and a web insertion device with a two tension cords having dynamic clamping unit.
  • Such a web take-up device is used, for example, at the end of a paper machine to wind a paper web produced in the paper machine on a spool.
  • the beginning of the paper web is first cut into a narrow strip, which by means of a clamping device in the desired. Winding position is performed.
  • the narrow strip of paper moves laterally next to the working width.
  • the strip of paper web is then passed through the nip between the spool and the carrier drum and the two ropes of the clamping device then run apart. This makes it possible to fix the beginning of the paper web on the spool.
  • the paper web is pulled by the train during winding pulled out laterally from the clamping device.
  • the clamping device which can also be referred to as a rope cutter or belt clamp, forms a dynamic clamping unit.
  • the dynamic clamping unit is characterized in that the two tension cords, so ropes or bands, form a continuous moving nip, which can detect a paper web and release it again after a certain distance.
  • the carrier drum is hereby often referred to as a Poperollertrommel.
  • reel drum it should be meant all rollers or drums, in which the forming on the reel winding roll is applied during winding.
  • a generic device is in the US 4,147,287 disclosed.
  • the invention has for its object to make the web introduction at higher speeds easy.
  • the material web must be pulled laterally out of the clamping unit. Rather, it is guided directly after leaving the clamping device on the spool and held there by one of the two tension cords.
  • the tensile strand is placed around a portion of the circumference of the carrier drum, that the material web is guided with a relatively high security by the nip between the carrier drum and drum. This can be exploited, for example, that the web is guided only over a relatively short distance without support over the circumference of the carrier drum, so that it passes with great likelihood in the nip between the carrier drum and the spool. Once this nip has happened, then the transfer of the web onto the spool can be accomplished by conventional methods.
  • At least the tensile strand which is guided around the carrier drum, is formed as a band. So you widened the support surface for the strip of paper web compared to a simple rope. This in turn improves the retention of the web on the carrier drum and thus allows higher speeds.
  • a compressed air guiding device is arranged between the deflecting position and the nip.
  • a compressed air guide device allows the Even at the beginning of the web, it is safe to blow into the nip between the carrier drum and the drum when the speeds are relatively high.
  • that of the bands is guided around the portion of the circumference of the carrier drum, which is arranged radially further out with respect to the carrier drum. It takes advantage of the fact that the initial strip of the web is then pressed by the centrifugal force during deflection against the tape, so that a secure hold is ensured even if the clamping force between the corresponding band and the circumference of the carrier drum is made only small. This has the advantage that it may be possible to allow a small slip between the carrier drum and the incoming paper web, without the reliability of the holding is impaired.
  • the tape runs on the opposite side of the spool on the carrier drum.
  • the incoming web is then fed almost half way, but in any case more than a quarter on the circumference of the carrier drum, so that it is possible to transfer a sufficient drive power by frictional engagement of the carrier drum on the initial strip of the web.
  • the band is movable away from the nip a predetermined distance sufficient to make room for a unwound spool.
  • a web winding device of the type mentioned should be operated virtually continuously.
  • the material web is passed from a fully wound drum to a new, unwound drum in the so-called "flying splice". It is the when the material web is severed, the beginning is transferred to the unwound spool, while the end resulting from the trimming is determined on the fully wound spool. In such a transfer, the new spool is placed on the carrier drum and then moved from a Anwickelstation in an operating position.
  • the band is guided at the deflection position about a deflection roller which is displaceable.
  • a deflection roller which is displaceable.
  • the end of the band is shifted. It creates the desired freedom with high reliability to bring the new drum in the wrapping position.
  • the deflection roller is displaceable on an arcuate path. With this movement, the motion control for the pulley and the belt running over it is relatively simple.
  • the deflection roller is pivotable about the axis of the support roller. You can then use the axis of the carrier drum as a storage point for levers on which the pulley is arranged.
  • the bands are arranged in an axial portion of the carrier drum, which at least partially belongs to the working width.
  • the bands are arranged so that they feed completely into the work area, then such a train across the winding direction can even be completely avoided.
  • At least one tensile strand is transversely movable to its direction.
  • This shift can take place in that the tension cord is moved parallel to the surface of the supplied material web until it has left the material web. In this case, no contact takes place between the tensile strand and the material web during operation.
  • contact between the material web and the tensile strand is then avoided during normal winding, which is particularly advantageous for sensitive material webs, especially sensitive paper webs. With sensitive paper webs, of course, one will bring both tension cords out of contact with the paper web.
  • the initial strip of the paper web 1 When the initial strip of the paper web 1 enters the nip 8 between the carrier drum and the drum 1 and has been set on the spool 1, then the initial strip of the paper web 1 can be cut to width, so that an increasing proportion of the width of the paper web 1 is wound on the spool 2. This creates a train on the paper web 1, which pulls the paper web 1 from the clamping between the ropes 3, 4.
  • the cables 3, 4 are replaced by belts 3 ', 4'. These bands have a certain width transversely to their direction, so are able to support the paper web 1 in some respects flat.
  • the dynamic clamping device is then designed as a belt clamp.
  • the bands are arranged so that the paper web 1 is fully inserted within the working width in the nip 8, that is, the full width of the initial strip of the paper web 1 on the spool 2 passes, so that even in the subsequent winding no train on the paper web 1 is exercised, which is directed transversely to the direction, ie transversely to the winding direction.
  • the bands 3 ', 4' through the nip 8 between the carrier drum 7 and the drum 2 to lead.
  • the other band 4 ' is guided over a further deflection roller 10, which can be displaced from a first position shown by solid lines along a movement path, which is represented by a double arrow 11, into a second position 12, which is shown with dashed lines.
  • This position 12 is also referred to as "performance position".
  • the second band 4 ' is guided over a certain section around the circumference of the carrier drum 7, thus pinching the paper web 1 between itself and the circumference of the carrier drum 7. Due to the centrifugal force during deflection, however, the paper web 1 is pressed with a slightly greater force against the second band 4 'as against the circumference of the carrier drum 7, if no additional measures are taken. It is therefore possible that there is a small slip between the carrier drum 7 and the paper web 1, so that one must perform the speed controls of band 4 'and carrier drum 7 only with reduced accuracy.
  • the displacement of the guide roller 10 from the rest position to the working position 12 takes place along a circular path about the axis of the carrier drum 7 around, so that, for example, support arms for the guide roller 10 in the region of this axis 13 can arrange.
  • a compressed air support means 14 which directs an air jet 15 on the paper web 1 and this in the nip 8 between the Carrying drum 7 and the drum 2 blows.
  • the guided through the nip 8 paper web 1 is sucked by a suction device 16, fed back into a pulper and then, when it has stabilized, by a separating and transfer device 17, which is shown only schematically, blown around the drum 2.
  • a suction device 16 fed back into a pulper and then, when it has stabilized, by a separating and transfer device 17, which is shown only schematically, blown around the drum 2.
  • the paper web 1 on the opposite side of the drum 2 on the carrier drum 7 runs up. This implies that when the spool 2 is moved in winding substantially in the horizontal direction, the paper web is fed from below to the carrier drum 7 zoom. Accordingly, the paper web 1 runs from above into the nip 8 between the carrier drum 7 and the drum 2, which further facilitates insertion.
  • Fig. 2 It is shown that on the spool 2, a winding 22 of the paper web 1 has already formed. This winding is so large that it has reached a predetermined diameter. In this case, the transfer of the paper web 1 to the new drum 18 is to take place.
  • the new spool 18 is for this purpose in a Anwickelstation, in the embodiment according to Fig. 2 is offset by about 90 degrees relative to the operating position in which the drum 2 is located, brought to the support drum 7 and the overlying paper web 1 to the plant. Expediently, the drum 18 is accelerated to a peripheral speed which corresponds to the speed of the paper web 1.
  • the guide roller 10 is pivoted away from the position 12, so it is so far away from the nip 8 that 18 remains enough space for the drum.
  • the paper web 1 in addition, where it is not supported on both sides of the bands 3 ', 4' or the carrier drum 7, be supported by a Druck Kunststoffbeaufschlagung, for example between the guide roller 9 and the carrier drum. 7
  • the belts 3 ', 4' are moved parallel to the surface but transversely to the direction of travel of the paper web 1 until they are no longer in register with the paper web 1.
  • the belts 3 ', 4' are simply lifted off the surface of the paper web 1, for example by shifting corresponding deflection or guide rollers or rollers.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Credit Cards Or The Like (AREA)

Claims (10)

  1. Dispositif pour enrouler une nappe, comprenant un tambour, un cylindre porteur et un dispositif de guidage de nappe avec une unité de serrage dynamique présentant deux câbles de traction, caractérisé en ce qu'une section de serrage de l'unité de serrage, dans laquelle coopèrent les deux câbles de traction (3', 4') par serrage, se termine avant le cylindre porteur (7) et un câble de traction (4') est guidé sur une portion de la périphérie du cylindre porteur (7) et est dévié par un pinçage (8) entre le cylindre porteur (7) et le tambour (2).
  2. Dispositif pour enrouler une nappe selon la revendication 1, caractérisé en ce qu'au moins le câble de traction (4') qui est guidé autour du cylindre porteur (7) est réalisé sous forme de bande.
  3. Dispositif pour enrouler une nappe selon la revendication 1 ou 2, caractérisé en ce qu'entre la position de renvoi (12) et le pinçage (8) est disposé un dispositif de guidage à air comprimé (14).
  4. Dispositif pour enrouler une nappe selon la revendication 2 ou 3, caractérisé en ce que la bande qui est disposée le plus à l'extérieur radialement par rapport au cylindre porteur (7) est celle qui est guidée autour de la portion de la périphérie du cylindre porteur (7).
  5. Dispositif pour enrouler une nappe selon l'une quelconque des revendications 2 à 4, caractérisé en ce que la bande (4') passe du côté opposé au tambour (2) sur le cylindre porteur (7).
  6. Dispositif pour enrouler une nappe selon l'une quelconque des revendications 2 à 5, caractérisé en ce que la bande (4') peut être écartée du pinçage (8) d'une distance prédéterminée qui suffit pour fournir de la place pour un tambour non bobiné (18).
  7. Dispositif pour enrouler une nappe selon l'une quelconque des revendications 2 à 6, caractérisé en ce que la bande (4') est guidée dans la position de renvoi (12) autour d'une poulie de renvoi (10) qui est déplaçable.
  8. Dispositif pour enrouler une nappe selon la revendication 7, caractérisé en ce que la poulie de renvoi (10) peut être déplacée sur une nappe de forme courbe (11).
  9. Dispositif pour enrouler une nappe selon la revendication 8, caractérisé en ce que la poulie de renvoi (10) peut pivoter autour de l'axe du cylindre porteur (7).
  10. Dispositif pour enrouler une nappe selon l'une quelconque des revendications 2 à 9, caractérisé en ce que les bandes (3', 4') sont disposées dans une portion axiale du cylindre porteur (7) qui appartient au moins partiellement à la largeur de travail.
EP20020002431 2001-03-10 2002-02-01 Dispositif pour enrouler une bande Expired - Lifetime EP1238932B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20104166U DE20104166U1 (de) 2001-03-10 2001-03-10 Bahnaufwickelvorrichtung
DE20104166U 2001-03-10

Publications (3)

Publication Number Publication Date
EP1238932A2 EP1238932A2 (fr) 2002-09-11
EP1238932A3 EP1238932A3 (fr) 2004-01-21
EP1238932B1 true EP1238932B1 (fr) 2008-04-02

Family

ID=7954106

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020002431 Expired - Lifetime EP1238932B1 (fr) 2001-03-10 2002-02-01 Dispositif pour enrouler une bande

Country Status (2)

Country Link
EP (1) EP1238932B1 (fr)
DE (2) DE20104166U1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009002077A1 (de) * 2009-04-01 2010-10-07 Voith Patent Gmbh Wickelmaschine zum Aufwickeln einer Materialbahn auf einen Wickelkern
DE102011083943A1 (de) * 2011-10-04 2013-04-04 Voith Patent Gmbh Wickelvorrichtung und Verfahren zum Wickeln einer bahnbreiten Papier- oder Kartonbahn

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4147287A (en) * 1978-01-05 1979-04-03 Crown Zellerbach Corporation Reel threading system
GB2073712B (en) * 1980-04-11 1984-01-25 Mather & Son Ltd Alexander Threading into nip between winding reel and driving drum
DE4037661C1 (fr) * 1990-11-27 1991-12-19 J.M. Voith Gmbh, 7920 Heidenheim, De
FI103425B (fi) * 1997-11-14 1999-06-30 Valmet Corp Päänvientilaitteisto ja menetelmä rainan pään viemiseksi

Also Published As

Publication number Publication date
DE20104166U1 (de) 2001-06-21
DE50211998D1 (de) 2008-05-15
EP1238932A2 (fr) 2002-09-11
EP1238932A3 (fr) 2004-01-21

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