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EP0930261B1 - Méthode et dispositif pour enrouler des bandes refendues en rouleaux - Google Patents

Méthode et dispositif pour enrouler des bandes refendues en rouleaux Download PDF

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Publication number
EP0930261B1
EP0930261B1 EP99100610A EP99100610A EP0930261B1 EP 0930261 B1 EP0930261 B1 EP 0930261B1 EP 99100610 A EP99100610 A EP 99100610A EP 99100610 A EP99100610 A EP 99100610A EP 0930261 B1 EP0930261 B1 EP 0930261B1
Authority
EP
European Patent Office
Prior art keywords
winding
web
winding position
webs
partial
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
EP99100610A
Other languages
German (de)
English (en)
Other versions
EP0930261A2 (fr
EP0930261A3 (fr
Inventor
Dirk Dipl.-Ing. Cramer
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 Paper 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 Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP0930261A2 publication Critical patent/EP0930261A2/fr
Publication of EP0930261A3 publication Critical patent/EP0930261A3/fr
Application granted granted Critical
Publication of EP0930261B1 publication Critical patent/EP0930261B1/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
    • B65H19/2284—Simultaneous winding at several stations, e.g. slitter-rewinders
    • 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
    • B65H19/26—Cutting-off the web running to the wound web roll
    • 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
    • B65H2301/4148—Winding slitting
    • 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
    • B65H2301/41892—Cutting knife located in winding or guiding roller and protruding therefrom
    • 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
    • B65H2301/41894—Cutting knife moving on circular or acuate path, e.g. pivoting around winding roller
    • 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
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/515—Cutting handled material
    • B65H2301/5153—Details of cutting means
    • B65H2301/51539—Wire
    • 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

Definitions

  • the invention relates to a method for winding Partial webs to partial web rolls that are axially offset from each other in several winding position groups at different Circumferential positions at a common Central roller in contact with the partial webs when reached a predetermined diameter of the partial web rolls in the area of contact of the partial web rolls with the Cut the central roller and transfer it to new roll cores become.
  • Such a method is known from GB 2 136 403 A.
  • paper webs are wound into winding rolls, that in two winding position groups on both Sides of a central roller are arranged.
  • the winding rolls are swung away from the central roller.
  • a knife holder with one on it Knife is about the axis of rotation of the central roller swung around and then cuts through the Material webs.
  • two Knives may be provided.
  • WO 91/18814 A1 shows a method and a device for cutting web-shaped material in slitter rewinder of the backup roller type in which a knife arrangement also pivoted in a circle around a central roller can be.
  • a knife arrangement also pivoted in a circle around a central roller can be.
  • a knife in one Pipe slidably arranged. If the pipe in the too cutting material web is immersed, it will Move axially across the width of the central roller and thereby cuts through the material web.
  • the invention is intended to be based on a paper web be described as an example of a material web. However, you are not limited to this. Similar problems arise when cutting paper-like products, such as cardboard, or of plastic films or Metal.
  • Paper webs are often used today on paper machines produced, whose working width is larger than that of Users, such as printers, desired Width. For this reason, the paper webs must be in one of the last manufacturing steps to the corresponding one Cut width and then rolled up or be wound up.
  • the paper webs must be in one of the last manufacturing steps to the corresponding one Cut width and then rolled up or be wound up.
  • two, but usually more partial web rolls There are two for winding these partial web rolls known various possibilities. For one, can all partial web rolls axially next to each other in a common one Changing bed can be wrapped by two or more support rollers is formed. This winding takes place So according to the roller principle.
  • Another principle is the so-called backup roller principle, in which the individual partial web rolls on their roll core being held. To adjust the winding hardness, which, among other things, by the contact pressure when winding is determined, the partial web rolls lie on one Pressure roller on. If you have this pressure roller for everyone Partial web rolls used together, one speaks also from a central roller.
  • the invention has for its object the role change when winding in different winding position groups to simplify.
  • This task is carried out in a method of the type mentioned at the beginning Art solved in that the cutting device is used for the transport of partial web beginnings.
  • the partial webs of different winding position groups are advantageous cut one after the other. This has the advantage that the individual partial webs in the winding position groups that are not currently transferred either through the finished web rolls be fixed or by the fact that the partial web starts are already fixed to the new roll cores. Naturally other holding options are also conceivable. you can, however, rely on this procedure Cutting the partial webs in a winding position group focus without fear of interference occur due to partial webs of other winding position groups.
  • the beginning of the partial webs is preferably started the central roller and the cutting device is before connecting the web starts with roll cores brought back to a starting position.
  • This has the advantage that for everyone Cutting operations have the same initial conditions. Above all, this has the advantage that the cutting device always cut the partial webs right there can where the partial webs are lifted from the central roller are to be wound up on the partial web rolls. In any case, the cutting device can be radial outside of the partial webs lying on the central roller being held.
  • the beginning of the web starts the central roller. So there is one Holding facility available that the movement of the Cutting device not hindered.
  • the suction is a relatively gentle holding process, so that even sensitive Material webs are treated in this way can.
  • the partial web starts can therefore differ from the central roller solve and fall, usually under the effect gravity, back. If more than two winding position groups are provided, then remain Partial webs representing the middle winding position groups (i.e. between the first and the last winding position group located) held there or get stuck there. On the way back to their starting position can then the cutting device all Partial webs in the area of their winding position groups cut and thus automatically to the correct length bring.
  • a train interruption by the partial lanes be sucked to the surface of the central roller.
  • This frictional engagement enables that the necessary for cutting the partial webs Tension is applied.
  • Behind the section, at which the partial webs to the surface of the central roller are sucked in the partial webs are practically without tension to disposal.
  • the winding tension can then set by driving the individual web rolls become.
  • the winding tension is therefore of the Voltage decouples that for cutting the partial webs necessary is.
  • this configuration another advantage. Especially very smooth papers, for example, SC papers and coated papers problematic in terms of the maximum winding speed.
  • the invention also relates to a winding device for Winding of partial webs to partial web rolls, which in at least two winding position groups in different Circumferential positions axially offset from one another common central roller, with a cutting device, which extends axially across all winding positions extends around the center roll through all winding position groups is pivotable, and the cutting device is combined with a holding device with the at least one partial web on the surface of the central roller can be determined at which the above Task is solved in that the cutting device together with the central roller and those on the surface the central roller fixed part webs rotatable is.
  • the cutting device preferably acts in both circumferential directions.
  • a cutting direction that is parallel to the Direction with which the partial webs around the Run the central roller around. With this cutting direction the partial webs are cut where they meet the central roller leave, that is, at the transition from the edition on the central roller to rest on the partial web rolls.
  • it can be advantageous to all partial web beginnings to the last winding position group for example by holding with the cutter. There will be only the partial web beginnings assigned to this winding position group fixed. All other part-line beginnings fall back. Now if the cutter backwards is moved, it can be in the other cutting direction act and the partial webs also in their individual Cut winding position groups.
  • the central roller advantageously has for each winding position group one with a holding force Stopping area.
  • This stop area is used for preparation of winding, i.e. to hold the beginning of the partial web until the individual roll cores are in position brought and connected to the beginning of the subway are. As long as the partial web starts, for example after the cutting device can be held there moved back to their starting position become.
  • the holding areas can preferably be subjected to negative pressure. Sucking the beginning of the partial web to the The surface of the central roller is a relatively simple one and gentle possibility of the partial webs on the central roller hold. In addition, this configuration the advantage that the necessary for holding Do not collide with the cutting device.
  • a slitter 1 has a feed section 2 in which a material web 3, for example a paper web unwound from a jumbo or parent roll, is fed.
  • the material web 3 passes then a cutting section 4 in which they pass through themselves known means, for example cutting knives 5, 6 in Partial webs 7 is divided.
  • the cutting knives 5, 6 cut the material web 3 in the longitudinal direction. A certain pulling force is required for this.
  • This Traction is applied via a central roller 8, the is designed as a suction roll.
  • the central roller 8 has a roller shell 9, the shown for the sake of clarity is. There are many bores or holes in the roll shell 9 10 arranged, which enforce the roll shell 9. in the Inside the roll shell 9 is a first suction chamber 11 and a second suction chamber 12 arranged over a Suction port 13 can be supplied with negative pressure. With in other words, air from the suction chambers becomes permanent 11, 12 suctioned off.
  • the two suction chambers 11, 12 extend in the circumferential direction each only over a part of the Central roller 8.
  • the suction chamber 11 points in the circumferential direction two boundary walls 14, 15.
  • the suction chamber 12 has boundary walls 16, 17. All boundary walls 14-17 are about not shown Sealant sealed on the inner circumference of the roll shell 9.
  • Both suction chambers 11, 12 extend over angular ranges in the order of 60 °. That angle is however not mandatory. You can also get bigger or smaller ones choose an angle, especially for the suction chamber 11 ensures that the suction pressure in the Suction chamber 11 together with the surface of the central roller 8, which is determined by the angle, is sufficient around the partial webs 7 so strongly against the surface of the To press central roller 8 that the resulting Friction is sufficient to cut the necessary Transfer traction.
  • Partial web rolls 18, 19 of adjacent partial webs are in different winding position groups 20, 21 arranged. In each winding position group 20, 21, the individual partial webs 18, 19 have one certain axial distance from each other, can otherwise but the same or approximately the same winding axis exhibit.
  • the partial web rolls 18, 19 of the two Winding position groups 20, 21 are on each other Gap arranged.
  • the partial web rolls 18, 19 are on roll cores 21, 22 wound that are driven, for example by retractable mandrels, which in turn have a drive. This is only schematic indicated in the figure.
  • the roll cores are on the one hand in one Position shown in which the partial web rolls 18, 19th have already reached a certain extent. they are (for the purpose of distinguishing without drive) on the other hand drawn in a position where the winding the partial web rolls 18, 19 are just beginning.
  • the present Embodiment assumed that the centers or axes of rotation of the central roller 8 and the roller cores 21, 22 and thus the partial web rollers 18, 19 a horizontal plane 24 are arranged.
  • the centers the roller cores 22, 23 move when winding horizontally in this plane is 24.
  • the suction chamber 11 now ends somewhat in the circumferential direction before this level 24, i.e. the lower boundary wall 14 forms an angle 25 with the plane 24, which however can be relatively small, for example in the Order of magnitude in the range of 1 ° to 10 °. This ensures that the vacuum in the Suction chamber 11 can no longer act on the partial web, if it is to be lifted off the central roller 8, to be wound up on the web roll 19.
  • the Suction section formed by the suction chamber 11 ends at the location where the partial webs 7 be lifted off the central roller 8.
  • the suction chamber 11 can also be used for this purpose become.
  • the negative pressure in the suction chamber 11 adjustable to different values. In operation, so when winding, it must be set so high that the frictional engagement between the partial webs 7 and the central roller 8 is sufficient to cut the necessary To apply tension. This is not the case when setting up necessary. It is enough here, the beginnings of the partial lanes to lead to the roll cores 23. It ends the suction chamber 11 before the corresponding contact point. However, this is not critical because the partial webs 7 here be fed from above. So you hang out after that Leaving the suction section freely and down with the help of gravity, so to speak, their roll cores 23 forwarded.
  • the central roller 8 has an axis 30 around which a carrier 31 in the direction of its two axial end faces a double arrow 32 is pivotable.
  • the carrier 31 is slightly above the diameter of the central roller 8 over.
  • a narrow knife 34 has that in the axial direction between the two Carriers 31 is excited. Because of the axial tension the knife has a relatively high stability. It has a cutting edge on each of its two edges 35, 36 so that the knife 34 in both directions can cut.
  • the knife 34 is also movable in the radial direction below Effect of a schematically represented drive 37, for example a pneumatic or hydraulic Piston-cylinder arrangement. This is made possible Movement of the knife 34 by a likewise schematic shown elongated bearing opening 38 for the Knife 34 in carrier 31.
  • a schematically represented drive 37 for example a pneumatic or hydraulic Piston-cylinder arrangement. This is made possible Movement of the knife 34 by a likewise schematic shown elongated bearing opening 38 for the Knife 34 in carrier 31.
  • the first example assumes that in the two Winding position groups 20, 21 partial web rolls 18, 19 see above have been widely wound that their target diameter has been achieved.
  • the winding is interrupted.
  • the Cutting device 33 moves from the starting position shown clockwise around the central roller 8 around. In doing so, it first cuts through the partial webs, which wound up in the winding position group 21 become. As the negative pressure is maintained in the suction chamber 11 the corresponding partial webs remain fixed here.
  • the cutting device 33 is further around the central roller 8 swung around and then cuts after one Swivel angle of slightly more than 180 ° also the partial webs, which are wound in the winding position group 20. Since the suction chamber 12 is also subjected to negative pressure the beginnings of the partial lanes remain the cutting fixed on the surface of the central roller 8. The cutting device 33 can then be shown in the Starting position can be retracted. New Roll cores, for example with a self-adhesive Can be provided on the surface Partial beginnings approached and the beginnings of the partial lanes then attached. The negative pressure in the suction chamber 12 can be switched off. The negative pressure in the Suction chamber 11 can be used for a train interruption sufficient value. After that you can start winding the partial web rolls 18, 19 again. The role change is relatively quick because of it is no longer necessary, the individual partial webs in length to the different distances between the cutting section 4 and the individual winding position groups 20, 21 to adapt.
  • This operational flow applies when from an endless Material web 3 or a material web 3 with a much greater length than on the partial web rolls 18, 19 is wound up, several partial web rolls 18, 19 are wound.
  • the roll cores for the partial web rolls 18, which in the Winding position group 20 are then wound connected to the corresponding partial web beginnings.
  • the Knife 34 has meanwhile been detached from the partial webs been and a bit counterclockwise scaled back. If now the vacuum in the suction chamber 12 is switched off, the fixation of the Partial beginnings for the partial webs that are not in the Winding position group 20 to be wound. This then fall down under the action of gravity, So slip out of the gap between the knife 34 and the central roller 8 out. In the illustrated Embodiment then hang these partial webs perpendicular to the nip of the winding position group 21 downward. If the cutting device 33 is driven back, then it cuts through the hanging ones Partial webs 7 exactly in this area. Possibly you can still ensure that the partial webs are a little tense here.
  • the second cutting edge 36 occurs during this cutting in action.
  • Knife 34 is usually thin enough to pass through the nip between the partial web rollers 18, 19 and the central roller 8 to be led. If the extension in Circumferential direction is small enough, then it is not necessary to provide the knife 34 with a curvature. Since you normally have a relatively thin tape, the can be tensioned well when knife 34 is used this band when going through the respective nips adapt to the curvatures required in each case, provided this is necessary.

Landscapes

  • Replacement Of Web Rolls (AREA)

Claims (12)

  1. Procédé pour enrouler des bandes refendues en rouleaux, qui sont déposés avec un décalage axial l'un par rapport à l'autre en plusieurs groupes de positions d'enroulement en différentes positions périphériques sur un cylindre central commun, dans lequel les bandes refendues sont coupées lorsque l'on atteint un diamètre prédéterminé des rouleaux dans la région de contact des rouleaux avec le cylindre central et sont transférées à de nouveaux noyaux d'enroulement, caractérisé en ce que le dispositif de coupe est utilisé pour le transport de têtes de bandes refendues.
  2. Procédé suivant la revendication 1, caractérisé en ce que les bandes refendues de différents groupes de positions d'enroulement sont coupées l'une après l'autre dans le temps.
  3. Procédé suivant la revendication 2, caractérisé en ce que l'on utilise pour toutes les coupes le même dispositif de coupe; qui est mené autour du cylindre central.
  4. Procédé suivant la revendication 3, caractérisé en ce que les têtes de bande des bandes refendues sont maintenues sur le cylindre central et le dispositif de coupe est ramené dans une position initiale avant l'assemblage des têtes de bande avec des noyaux d'enroulement.
  5. Procédé suivant la revendication 4, caractérisé en ce que les têtes de bande sont aspirées sur le cylindre central.
  6. Procédé suivant l'une quelconque des revendications 3 à 5, caractérisé en ce qu'au commencement de l'enroulement, toutes les têtes de bandes refendues sont amenées dans le dernier groupe de positions d'enroulement, seules les bandes refendues à enrouler dans ce groupe de positions d'enroulement y sont attachées et le dispositif de coupe est ramené au premier groupe de positions d'enroulement et coupe les bandes refendues associées aux autres groupes de positions d'enroulement dans les positions d'enroulement individuelles.
  7. Procédé suivant l'une quelconque des revendications 1 à 6, caractérisé en ce que l'on effectue une interruption de la traction de la bande avant le premier groupe de positions d'enroulement, en aspirant les bandes refendues sur la surface du cylindre central.
  8. Dispositif pour enrouler des bandes refendues en rouleaux, qui sont déposés avec un décalage axial l'un par rapport à l'autre en au moins deux groupes de positions d'enroulement (20, 21) en différentes positions périphériques sur un cylindre central commun (8), dans lequel un dispositif de coupe (33), qui s'étend axialement sur toutes les positions d'enroulement, peut pivoter autour du cylindre central (8) à travers tous les groupes de positions d'enroulement (20, 21), et le dispositif de coupe (33) est combiné avec un dispositif de maintien, avec lequel au moins une bande refendue peut être attachée sur la surface du cylindre central (8), caractérisé en ce que le dispositif de coupe (33) peut tourner en commun avec le cylindre central (8) et les bandes refendues (7) attachées sur la surface du cylindre central (8).
  9. Dispositif suivant la revendication 8, caractérisé en ce que le dispositif de coupe (33) opère dans les deux directions périphériques.
  10. Dispositif suivant la revendication 8 ou 9, caractérisé en ce que le cylindre central (8) présente pour chaque groupe de positions d'enroulement (20, 21) une zone de maintien (11, 12) pouvant être soumise à une force de maintien.
  11. Dispositif suivant la revendication 10, caractérisé en ce que les zones de maintien (11, 12) peuvent être soumises à une dépression.
  12. Dispositif suivant la revendication 11, caractérisé en ce qu'une zone de maintien (11) soumise à une dépression lors de l'enroulement est disposée avant le premier groupe de positions d'enroulement (21) dans le sens de défilement des bandes refendues (7).
EP99100610A 1998-01-20 1999-01-14 Méthode et dispositif pour enrouler des bandes refendues en rouleaux Expired - Lifetime EP0930261B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19801874 1998-01-20
DE19801874A DE19801874A1 (de) 1998-01-20 1998-01-20 Verfahren und Vorrichtung zum Wickeln von Teilbahnen zu Teilbahnrollen

Publications (3)

Publication Number Publication Date
EP0930261A2 EP0930261A2 (fr) 1999-07-21
EP0930261A3 EP0930261A3 (fr) 2000-03-15
EP0930261B1 true EP0930261B1 (fr) 2003-05-07

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Application Number Title Priority Date Filing Date
EP99100610A Expired - Lifetime EP0930261B1 (fr) 1998-01-20 1999-01-14 Méthode et dispositif pour enrouler des bandes refendues en rouleaux

Country Status (3)

Country Link
US (1) US6176449B1 (fr)
EP (1) EP0930261B1 (fr)
DE (2) DE19801874A1 (fr)

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US6709549B2 (en) 2001-03-29 2004-03-23 Metso Paper Karlstad Ab Multi-reel apparatus in a paper machine
DE102006000061A1 (de) * 2006-02-10 2007-08-16 Voith Patent Gmbh Verfahren und Vorrichtung zum Wickeln von Teilmaterialbahnen auf Rollenkerne zu Teilmaterialbahnrollen
DE102006000060A1 (de) * 2006-02-10 2007-08-16 Voith Patent Gmbh Verfahren und Vorrichtung zum Wickeln von Teilmaterialbahnen auf Rollenkerne zu Teilmaterialbahnrollen
CN113274230B (zh) * 2021-06-30 2022-06-10 中国人民解放军陆军军医大学第一附属医院 一种妇科检查床
CN118164309A (zh) * 2024-05-14 2024-06-11 德州市巨鼎新材料股份有限公司 一种玻璃纤维网格布胶带生产装置
CN118618988B (zh) * 2024-08-12 2024-10-11 安徽华意包装有限公司 一种薄状胶带的多辊调节收放卷装置

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Also Published As

Publication number Publication date
EP0930261A2 (fr) 1999-07-21
DE59905375D1 (de) 2003-06-12
US6176449B1 (en) 2001-01-23
EP0930261A3 (fr) 2000-03-15
DE19801874A1 (de) 1999-07-22

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