EP3880591A1 - Aufwickelverfahren - Google Patents
AufwickelverfahrenInfo
- Publication number
- EP3880591A1 EP3880591A1 EP19791203.3A EP19791203A EP3880591A1 EP 3880591 A1 EP3880591 A1 EP 3880591A1 EP 19791203 A EP19791203 A EP 19791203A EP 3880591 A1 EP3880591 A1 EP 3880591A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding
- material web
- web
- new
- winding 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.)
- Granted
Links
- 238000004804 winding Methods 0.000 title claims abstract description 165
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 80
- 238000000926 separation method Methods 0.000 claims description 15
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000011111 cardboard Substances 0.000 claims description 3
- 239000000123 paper Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 abstract description 5
- 239000000109 continuous material Substances 0.000 abstract 1
- 239000002657 fibrous material Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000001035 drying Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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
- B65H19/26—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
- 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
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/54—Auxiliary process performed during handling process for managing processing of handled material
- B65H2301/543—Auxiliary process performed during handling process for managing processing of handled material processing waste material
-
- 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 method for winding up a running material web, in particular a paper, cardboard, tissue or other fibrous web, in which the material web is wound one after the other onto a plurality of winding cores to form winding rolls, the material web covering a circumferential area with which the forming winding roll is a winding gap forming winding roller is guided.
- Such a method and such a winding machine are well known for example from the European patent EP 0 483 092 B1 or from the international patent application WO 98/52858 A1. They are used at the end of a machine used to manufacture or refine a web of material. However, they can also be used to wrap a winding roll that has already been wound.
- the machine in question can be, for example, a paper or board machine.
- the running material web is wound continuously, that is to say without interruption, one after the other onto several winding cores to form winding rolls. In this way, both good material and, as a rule, unsellable reject material are wound up. If unsaleable scrap material has now been wound up on a winding core, it is usually removed by waiting on the winding roll, by cutting out on a subsequent rewinder or by sorting out in a subsequent production or finishing step, for example by means of a cross cutter.
- These described and known methods are very time and labor intensive and thus lead to loss of time and production with a financial and device-related overhead.
- the winding process can also be interrupted by knocking off the unsellable material web in a drying section upstream of the winding machine in the direction of travel of the material web and removing it, for example, into a pulper.
- reeling of rejects is prevented.
- an interruption of the Wrapping process when a desired quality property is reached again a process which is not easy from a process technology point of view and a loss of time and production in production.
- the term “quality property” is understood to mean any property of the material web, such as, for example, the basis weight, the fiber orientation, the tear length ratio, the opacity, the surface roughness, the shrinkage cross profile, the dry content, the composition, etc.
- the object of the invention is therefore to enable a change in the quality property of the material web with the least possible effort and loss.
- the object was achieved by cutting the web of material in front of the winding nip when changing a quality property, guiding this first, new beginning of the web from the winding roller into a pulper and cutting the web of material again before reaching the winding nip, and cutting the web again
- the second, new web start that arises is wound onto a new winding core.
- the material web is advantageously cut in front of an already existing or still to be formed gap between the winding roller and the new winding core.
- the material web having a reject quality is therefore neither knocked off in a section of the winding machine, for example the drying section, upstream of the winding machine in the running direction of the material web, nor is it wound onto the winding core to form a winding roll. Rather, it becomes without any Production interruption rejected and disposed of.
- the direct discharge preferably takes place in a pulper arranged below the winding nip
- the indirect discharge can take place, for example, by means of a conveying means in a pulper arranged remotely.
- the method according to the invention can run automatically and can be ended with the complete transfer of the removed material web to the new winding core.
- the method according to the invention for winding up a running material web thus allows a targeted interruption of the winding process when a material web having a reject quality is present and a targeted continuation of the usual winding process after at least one desired quality property has been achieved in the material web.
- Another characteristic for the implementation of the method according to the invention can also be the non-fulfillment or renewed fulfillment of a production characteristic of the material web, such as the web speed, the web width, the production quantity, etc.
- the new winding core can be pressed into the pulper before or during the first separation of the material web or only after the material web has been severed and removed web-wide, but must be pressed against the winding roller at the latest before the material web is transferred to the new winding core.
- the web tip of this first web start should be in an end region of the winding core and the gap between the new winding core and the winding roller in this end region, at least to the safe Guiding this start of the path in the pulper must be open on one side.
- the material web is separated by means of one or more beams with a high energy density, in particular water or laser beams, which are directed onto the cutting area.
- the separation of the material web begins with the formation of a web tip and then continues with the formation of a web strip becoming web-wide.
- the cutting area is advantageously located in the looping area of the winding roller, since the material web is supported in this way during cutting.
- the cutting area is in front of the winding roller, preferably up to a maximum of 3 m and in particular up to a maximum of 0.1 m in front of the winding roller.
- the web tip of the material web strip is arranged on the drive side or on the driver side or in the middle of the material web. In a preferred embodiment, it will be arranged on the side on which the transfer strip upstream in the winding machine is already arranged. This is usually on the driver's side.
- the already wound winding core can advantageously be moved away from the winding roller into a winding end position before or during the first separation of the material web with the formation of a free pull of the material web, and can be braked to a standstill there after the web-wide transfer of the material web (onto the new winding core).
- the web tension after the wound winding core has been carried away should be via one or more arranged in front of the winding roller Guide and / or slitter rolls are increased by slightly leading each.
- the already wound winding core remains in contact with the winding roller until the material web is transferred to the new winding roll.
- the web tip of this first web start should be in an end region of the winding core and the gap between the already wound winding core and the winding roller in this end region at least until the web start is reliably guided in open the pulper on one side.
- the winding machines described below are generally suitable for winding a running material web 1.
- the winding machine can be arranged at the end of a machine for producing or finishing a running material web 1 in order to wind the finished and running material web 1 into a winding roll 4.
- the winding machine can also be used for rewinding finished winding rolls 4.
- this is a winding machine for winding a continuous fibrous web, in particular a paper or cardboard web.
- the running material web 1 is successively wound onto a plurality of winding cores 2, 3, in particular reels, to form winding rolls 4.
- the material web 1 to be wound is guided over a circumferential region of a stationary or preferably movably mounted winding roller 6, in particular a carrying drum.
- the winding roller 6 forms a winding gap 8 with the winding roller 4 to be formed.
- a quality measuring device which is not explicitly shown but which is known to the person skilled in the art, now determines that at least one desired quality property of the material web 1 is no longer given, the Material web 1 is cut in front of the winding nip 8 and this first, new beginning of the web after the winding nip 8 is guided by the winding roller 6 into a pulper 7. In order to support the detachment of the material web 1 from the winding roller 6, a scraper 5 is assigned to it.
- the material web 1 is cut through again in front of the winding gap 8 and the second new web start which is thereby formed is wound onto a new winding core 3.
- the separating device 9 comprises one or more jets with a high energy density, in particular one or more water jets, which are directed onto the material web 1 in the cutting area.
- the cutting on the winding roller 6 according to Figures 2 and 3 is very safe and connected with a stable web guide.
- the cutting is carried out in front of the winding roller 6, preferably at most 0.1 m in front of the winding roller 6.
- the separation of the material web 1 begins with the formation of a web tip and then continues with the movement of the water jet transversely to the web running direction 11 with the formation of a web strip becoming web-wide.
- the web strip can be separated at an edge of the material web 1 or within the material web 1, in particular in the middle thereof.
- the water jet of the separating device 9 is moved to the opposite edge of the material web 1 to separate the material web 1.
- two water jets should be used to form the web tip, which are then moved to a different edge of the material web 1 in order to widen the web strip and ultimately cut through the material web 1.
- the winding roll 4 ie the winding core 2 that has already been wound up, remains in contact with the winding roller 6 until the material web 1 is transferred to the new winding roll 3. Accordingly, the first, new start of the web and the subsequent material web 1 after the first Cutting the material web 1 through the old winding gap 8 between the winding roller 6 and the winding roller 4 into the pulper 7.
- the web tip of the first start of the web is on the driver or drive side.
- the old winding gap 8 is open on one side in the region of the web tip until the first start of the web is safely guided in the pulper 7.
- the new winding core 3 can already be pressed against the winding roller 6 before or during the first separation of the material web 1.
- the gap between the winding roller 6 and the new winding core 2 in the region of the web tip should be open on one side until safe continuation in order to prevent the first web tip from running.
- the separating device 9 is located in the web running direction 11 in front of the new winding core 3.
- the winding roll 4 to be formed is moved away from the winding roller 6 before or during the first separation of the material roll 1 when the winding gap 8 is dissolved and when a free train 10 is formed in the material web 1.
- a new winding core 3 is brought to the winding roller 6 when a new winding gap 8 is formed.
- the new winding core 3 can be brought to the winding roller 6 when the new winding gap 8 is formed, either immediately or at a later point in time, but at the latest before the material web 1 is transferred to the new winding core 3.
- the gap between the winding roller 6 and the new winding core 2 in the region of the web tip should be open on one side until safe continuation in order to prevent the first web tip from running.
- the web tension should be increased after the wound winding core 2 has been led away via one or more guide and / or slitter rollers arranged in front of the winding roller 6.
- the new winding core 3 is removed by means of a pair of levers from a drum magazine, not shown, but known to the person skilled in the art, and brought into a waiting position. In this waiting position, the new winding core 3 is preferably pre-accelerated to the circumferential speed of the winding roller 6 by means of at least one center drive (not shown) and then placed on the winding roller 6.
- the invention has created a method with which an unsaleable section of a material web 1 to be wound can be handled in a simpler and more cost-effective manner with less expenditure on the device compared to the known methods.
Landscapes
- Replacement Of Web Rolls (AREA)
- Winding Of Webs (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018128673.2A DE102018128673A1 (de) | 2018-11-15 | 2018-11-15 | Aufwickelverfahren |
PCT/EP2019/078323 WO2020099061A1 (de) | 2018-11-15 | 2019-10-18 | Aufwickelverfahren |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3880591A1 true EP3880591A1 (de) | 2021-09-22 |
EP3880591C0 EP3880591C0 (de) | 2024-05-15 |
EP3880591B1 EP3880591B1 (de) | 2024-05-15 |
Family
ID=68318860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19791203.3A Active EP3880591B1 (de) | 2018-11-15 | 2019-10-18 | Aufwickelverfahren |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3880591B1 (de) |
DE (1) | DE102018128673A1 (de) |
WO (1) | WO2020099061A1 (de) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI91383C (fi) | 1990-10-26 | 1997-01-22 | Valmet Paper Machinery Inc | Menetelmä kiinnirullauksessa |
DE59813447D1 (de) | 1997-05-16 | 2006-05-11 | Voith Paper Patent Gmbh | Verfahren und Wickelmaschine zum kontinuierlichen Aufwickeln einer Materialbahn |
DE19907550A1 (de) * | 1999-02-22 | 2000-08-31 | Voith Sulzer Papiertech Patent | Verfahren und Vorrichtung zum Aufführen einer Materialbahn auf einen Tambour |
DE102007000798A1 (de) | 2007-09-28 | 2009-04-02 | Voith Patent Gmbh | Verfahren zum Aufwickeln einer laufenden Materialbahn sowie Wickelmaschine zur Durchführung des Verfahrens |
DE102012110790B4 (de) * | 2012-11-09 | 2017-04-27 | Windmöller & Hölscher Kg | Verfahren für die Bestimmung der Wickelqualität eines Folienwickels |
-
2018
- 2018-11-15 DE DE102018128673.2A patent/DE102018128673A1/de active Pending
-
2019
- 2019-10-18 WO PCT/EP2019/078323 patent/WO2020099061A1/de unknown
- 2019-10-18 EP EP19791203.3A patent/EP3880591B1/de active Active
Also Published As
Publication number | Publication date |
---|---|
EP3880591C0 (de) | 2024-05-15 |
EP3880591B1 (de) | 2024-05-15 |
WO2020099061A1 (de) | 2020-05-22 |
DE102018128673A1 (de) | 2020-05-20 |
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