EP1456105B1 - Verfahren zum ueberfuehren einer laufenden materialbahn auf einen wickelkern sowie vorrichtung zur durchfuehrung des verfahrens - Google Patents

Verfahren zum ueberfuehren einer laufenden materialbahn auf einen wickelkern sowie vorrichtung zur durchfuehrung des verfahrens Download PDF

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Publication number
EP1456105B1
EP1456105B1 EP02785421A EP02785421A EP1456105B1 EP 1456105 B1 EP1456105 B1 EP 1456105B1 EP 02785421 A EP02785421 A EP 02785421A EP 02785421 A EP02785421 A EP 02785421A EP 1456105 B1 EP1456105 B1 EP 1456105B1
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EP
European Patent Office
Prior art keywords
web
cutting piece
initial
initial cutting
winding roll
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
EP02785421A
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German (de)
English (en)
French (fr)
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EP1456105A1 (de
Inventor
Zygmunt Madrzak
Matthias Wohlfahrt
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
Priority claimed from DE2001161073 external-priority patent/DE10161073A1/de
Priority claimed from DE2001163554 external-priority patent/DE10163554A1/de
Priority claimed from DE10201410A external-priority patent/DE10201410A1/de
Priority claimed from DE10206575A external-priority patent/DE10206575A1/de
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Priority to EP05107461A priority Critical patent/EP1612173B8/de
Publication of EP1456105A1 publication Critical patent/EP1456105A1/de
Application granted granted Critical
Publication of EP1456105B1 publication Critical patent/EP1456105B1/de
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
    • B65H19/26—Cutting-off the web running to the wound web roll
    • B65H19/262—Cutting-off the web running to the wound web roll using a thin or filamentary material which is wound on the new 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
    • B65H19/26—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
    • B65H2301/41419—Starting winding process
    • B65H2301/41421—Starting winding process involving electrostatic means
    • 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
    • B65H2301/41896—Several cutting devices, e.g. located at different upstream/downstream positions of the web path
    • 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
    • B65H2301/51535—Details of cutting means adhesive tape or tab
    • 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

Definitions

  • the invention relates to a method for transferring a preferably over a portion of a winding roller material web, in particular a paper or board web, to a new hub.
  • the invention also relates to a winding machine for carrying out such a method.
  • Such methods of transferring a web of material are used, for example, in the area of a reel of a paper or board making machine, a coater, a slitter or an equivalent machine to the web without interrupting the manufacturing process, that is, without switching off the paper or board machine, one after the other on several empty hubs, which are also referred to as empty cores, or to spool the material web, that is, after a demolition of the paper or board web or after starting the paper or board machine to wind on a preferably empty core.
  • a middle part of the material web a so-called transfer strip, cut with two cutting devices at a point which lies above the winding roller in the running direction of the material web.
  • the transfer strip is on the upper side, that is provided on the empty bobbin side facing, by means of a Klebstoffzu fürvoriques with an adhesive medium and adhered to the surface of the empty beater. The transfer operation is completed by the movement of the two cutting devices in the direction of the respective web edge.
  • the adhesive medium has the ability to completely and reliably tear through the transfer strip at the latest when leaving the nip.
  • a disadvantage of this method is the design complexity and the extremely large number of components and groups.
  • the temporal synchronization and reproducibility of the individual process steps represent an uncertainty factor in the transfer of paper webs.
  • the method is also absolutely not suitable for transferring paper webs with high tear resistance, such as plastic sheets and cardboard.
  • German patent application cited above dispenses with the use of mechanical circular knives, which in practice bring many disadvantages, and instead provides the water jet as a separation medium, with which the material web can be cut both before and directly on the winding roller.
  • US Patent US 5,954,290 A discloses a device for transferring a running paper web to a new winding core. It is envisaged that in a peripheral region of the paper web, a high-strength separating belt, the length of which is a multiple of the material web width, so directly into the nip can be introduced that its beginning connects to the new hub. Thereafter, the separation tape spirally winds on the new hub on, wherein it tears the entire web at the same time and transferred to the new hub.
  • US Pat. No. 4,444,362 A discloses a method in which, in principle, no transfer strip is present, since the web start is completely formed by means of the transverse cutting devices already in front of the winding roller.
  • German patent DE 35 15 519 C2 describes a method in which although a transfer strip is formed, however, its connection to the leading web is already completely separated before the nip.
  • US 4,444,362 A also raises the question of how the "bound to nothing" web start reliably transported to the nip and listed on the new hub?
  • US Pat. No. 5,810,279 also discloses a method for transferring a moving material web onto a preferably new winding core when a new web start is formed from the running material web having a width.
  • a means used to form the new web start has a smaller width than the width of the material web.
  • the agent causes edge-side joining of the material web to the winding core, wherein the material web is subsequently separated by the action of shearing forces when creating a new web start.
  • German Offenlegungsschrift DE 42 08 746 A1 further discloses a method and a device for changing bobbins, in which a continuously fed to a reeling drum web is wound onto a new bobbin.
  • the following method steps are provided: bring the new spool, which is held with one arm in a waiting position, in contact with the reeling drum; Cutting the middle part of the web with two cutting devices along two approximately parallel cutting lines in the direction of travel of the web at a location which lies above the reeling drum in the running direction of the web; Supplying an adhesive in a region between the cutting lines and adhering the adhesive to a surface of the new coil; and moving the two cutters toward the respective web ends to cut the web into a triangular shape.
  • the object of the present invention is therefore to provide a method and a winding machine of the type mentioned, which allow an optimal transfer of a moving web to a new hub with high process reliability, process efficiency and low investment and process costs and the disadvantages of the prior art Avoid the technique altogether.
  • the method should be applied as possible for all known types of retractors and a wide range of material webs alike.
  • This object is achieved in a method in that at least one opening, in particular a slot or an introduction surface, preferably in the region of the material web is generated by means of a first separator that introduced in the region of the introduction at least one initial separating piece between the web and a winding roller such is that a portion of the introduced initial separation piece is not covered by the material web that the initial separation piece is at least temporarily connected after reaching a nip formed by the winding roller and the new hub in the uncovered area with the new hub, and that at the latest at the expiry of the Material web of the new hub causes a separation of the web through the Initialtrenn demo and / or made possible, whereby at least two new, bound to the Initialtrenn demo and the new hub core web beginnings are formed.
  • the defined and safe formation of at least two new, bound web beginnings ensures an absolutely clean winding start, which represents one of the most important prerequisites for an optimal winding structure and a small amount of rejects.
  • the process comprising only a few process steps, the highest reproducibility and associated reliability in the transfer of running material webs to new hubs with extremely low investment and process costs is achieved.
  • the introduction surface in the region of the material web is preferably produced by means of a first separation device by generating at least one discharge strip.
  • the creation of such an introduction surface produces, inter alia, the technological advantage that the initial separation piece can be transferred to the new core more effectively and safely due to the larger surface area.
  • the introduction surface is produced in the middle of the material web and / or that at least one introduction surface is produced in the middle region of the material web lying between the two edge regions and / or that at least one introduction surface, preferably two introduction surfaces, in the Both edge regions of the material web is or will be generated.
  • the generation of the at least one introduction surface depends fundamentally on the particular application, but each individual embodiment brings with it certain advantages, such as the avoidance of a so-called winding carrot.
  • the at least one strip width is in the range of 10 mm to 250 mm, in particular 25 mm to 100 nm, having Abgarst Shape by means of a first separator, such as a field-proven cutting element generated, the strip width in turn depends on the particular application.
  • the discharge strip has at least one discharge device which has a negative pressure of from 0.01 bar to 0.2 bar, preferably from 0.05 bar to 0.1 bar, directly after it Generation is dissipated. As a result, he can no longer negatively influence or even hinder the introduction of the initial separating piece.
  • an initial separator is used, which is provided in the area not covered by the material web with means with which at the latest on reaching the nip formed by the winding roller and the new hub through the initial separator, an at least temporary, sufficiently strong connection is made between the initial separator and the new hub.
  • an adhesive, vulcanization, Velcro, Saugknopf-, form-fitting, Reib gleich- or welded connection or a magnetic or electrostatic connection with the new hub is produced. All these funds have in common that they are characterized by a good cost-benefit ratio and, moreover, have above-average process reliability.
  • an initial separating piece which has at least one adhesive area in the area covered by the material web in order to produce at least one temporary connection between the material web or between the new web beginning and the initial separating piece.
  • an initial separator having a thickness in the range of 0.5 mm to 0.05 mm, preferably in the range of 0.25 mm to 0.1 mm. This thickness ensures that there are no marks in the web due to the initial separator.
  • a trained as a molding initial separator which consists of a plastic, a metal, a textile material, a tear-resistant fiber, in particular paper, or at least one combination of materials.
  • the initial separator may be formed as a preferably easily detachable part of a carrier.
  • the initial separating piece can be attached by means of a relatively easily detachable connection on at least one carrier prior to introduction between the material web and the winding roller, wherein the at least one carrier after leaving the nip is ideally carried with neither the new web start nor with the new hub.
  • the initial separating piece is provided with means for punching, cutting, perforating or embossing of the material web, which at the latest at the expiration point of the web of the new winding core, the web is so weakened or even severed.
  • the initial separating piece is introduced in a further embodiment of the invention by means of at least one dispensing device substantially directly between the web and the winding roller.
  • the initial separating piece is substantially unobstructed by means of at least one dispensing device in the case of a winding roller which is not wrapped around by the material web introduced directly into the nip or it is indirectly introduced by means of at least one dispenser between the web and the winding roller or it is first applied to the underside of the material web and then introduced by means of the web between the web and the winding roller or it is initially on temporary connection the lateral surface of the winding roller applied and then introduced by means of the winding roller between the web and the winding roller, wherein the temporary connection by means of at least one adhesive surface, by means of electrostatic forces, by means of magnetic forces, by means of vacuum loading of the winding roller, by means of Velcro or by means of at least one Saugknopfkoppelung.
  • the widths of the web starts transferred to the new winding core are increased by means of a second separating device such that the entire material web is transferred to the new winding core.
  • the second separating device is moved relative to the material web in a plane approximately parallel to the material web, preferably at least substantially perpendicular to the running direction of the material web, that oblique parting lines are produced.
  • the object is achieved according to the invention in a winding machine in that a first separating device for generating at least one opening, in particular a slot or a Einbring Structure, is arranged in the region of the material web and that at least one dispensing device for introducing at least one Initialtrenn flirts at least in the material from the web covered area of the opening and between the web and the winding roller is arranged such that the initial separating piece is substantially directly or indirectly between the web and the winding roller can be introduced.
  • the dispensing devices are arranged such that the initial separator is first applied to the underside of the material web and then by means of the material web between the web and the winding roller can be introduced or that the initial separator is first applied to the lateral surface of the winding roller with temporary connection and then by means of the winding roller between the material web and the winding roller can be introduced.
  • the initial separating piece has at least one adhesive area in the region which is both covered and uncovered by the material web. This creates the possibility that the initial separator makes an ideal connection with the material web as well as with the lateral surface of the new winding core.
  • the initial separating piece has at least one separating contour, which is preferably formed neither in the running direction nor transversely to the running direction of the material web. This separating contour favors the actual separation process and thus increases the process reliability for transferring the running material web to a new winding core.
  • the initial separator piece ideally has a thickness in the range of 0.5 mm to 0.05 mm, preferably in the range of 0.25 mm to 0.1 mm, is as a shaped piece of a plastic, a metal, a textile material, a tear-resistant fibrous material, in particular paper, or formed from at least one combination of materials, is formed as a part of a carrier and / or is mounted prior to introduction between the web and the winding roller by means of a relatively easily detachable connection on at least one carrier.
  • These mentioned possible properties of the initial separator also favor the actual separation process and thus increase the process reliability for transferring the moving material web to a new winding core.
  • the first and / or the second separating device in the region of the winding roller and / or in the running direction of the material web in front of the winding roller in the region of a free running path and / or in the running direction of the material web in a region in which the material web at least one of the winding roller upstream rollers touched, arranged. Furthermore, the first and / or the second separating device are arranged on the upper side and / or lower side of the material web and they are arranged in a common assembly with preferably common components.
  • the second separating device is arranged in the regions of the material web, which are not part of the web beginnings and are to be separated.
  • At least two preferably independent cutting elements with a respective beam of high energy density are provided as separating means.
  • Such cutting elements have already proven themselves many times in practice in many respects.
  • the initial separating piece forms the last device and / or the last element - seen in the running direction of the material web - for separating and / or transferring the material web onto the new winding core.
  • a separating device is a device which has at least one cutting element with which at least one separation or weakening of a material web can be achieved.
  • a cross-cutting device is a device which has at least one cutting element with which at least one variable separation or weakening of the material web, as seen in its position transversely to the direction of travel of a material web, can be achieved.
  • a nip is an area of a winding roller with which it can exert an influence on a winding roll or a new winding core.
  • a nip between the winding roller and the new hub is given in the context of this invention, even if they form a gap suitable for establishing a connection between an initial separator and the new hub.
  • An initial rotation is the first full revolution of a new hub after a successful connection between an initial separator and a new hub.
  • FIG. 1 shows a schematic and perspectively illustrated winding machine 1 according to the prior art.
  • a winding machine is well known, for example, from PCT Publication WO 98/52858 A1 (EP 0 912 435 A1, US Pat. No. 6,129,305 A) or the already mentioned documents EP 0 543 788 A1, DE 35 15 519 C2 or US 4,445,646 A.
  • the winding machine 1 comprises a winding roller 2, also referred to as a pressure drum or a carrier drum.
  • the material web 3 is led out either from a calender, not shown here, finishing group of a finishing machine or a drying section of a paper or board machine likewise not shown here, then wraps around usually a likewise not shown guide or spreader roll and then runs in the direction L on the outer surface 4 of the winding roller 2, the outer surface 4 of the winding roller 2 wraps around a certain angle ("wrap angle") to between the winding roller 2 and a winding roll. 5 existing Nip N1 and is finally wound on the winding roll 5.
  • a new winding core 6 (empty drum) is pre-accelerated by means of a drive device, not shown, and brought into contact with the winding roller 2 to form a nip N2.
  • at least one separation 7 is usually mounted in at least one web edge 8 by means of at least one known separating device 9 in the running web 3 before or on the winding roller 2, whereby at least one transfer strip 10 is formed.
  • the transfer strip 10 is severed and transferred to the new winding core 6.
  • Figures 2 to 4 show schematic and perspective views of a winding machine 1 according to a first embodiment of the invention, wherein the structural design including control engineering in principle corresponds to that of the winding machine 1 of Figure 1, whereby a reference to Figure 1 is taken.
  • the material web 3 is shown in transparent form, so that the underlying components and assemblies are visible.
  • At least one opening 17, in particular a slot or an insertion surface 17. 1 is preferably produced in the center M of the material web 3, preferably by means of a first separation device 9.1, that at least in the region of the introduction surface 17 an initial separating piece 11 is inserted between the material web 3 and the winding roller 2 such that an area 11.1 of the introduced initial separating piece 11 is not covered by the material web 3, that the initial separating piece 11 after reaching a nip N2 formed by the winding roller 2 and the new winding core 6 at least temporarily in the non-covered area 11.1 is connected to the new hub 6, and that no later than the expiration point Q of the web 3 of the new hub 6 separation of the web 3 caused by the initial separator 11 and / or made possible, creating at least two new , to the initial separator 11 and the new hub 6 bound web beginnings are formed.
  • the at least one introduction surface 17.1 is preferably produced by means of the first separation device 9.1 by generating at least one discharge strip 18.
  • the introduction surface 17.1 can also be produced in the middle region of the material web 3 located between the two edge regions 8.1. Also, at least one introduction surface 17.1, preferably two insertion surfaces 17.1 in the two edge regions 8.1 of the material web 3 are generated, whereby the transfer of the material web 3 can be accelerated in an advantageous manner.
  • the at least one stripe width B S in the range from 10 mm to 250 mm, in particular from 25 mm to 100 nm, having Abgarst Shape 18 is generated by a first separator 9.1 and by means of at least a negative pressure of 0.01 bar to 0.2 bar , preferably from 0.05 bar to 0.1 bar, having discharge device 19 discharged directly after its generation.
  • This discharge device 19 can be executed in the simplest case as an ordinary suction hose.
  • At the expiring strand of the discharge device 19 is advantageously at least one cutting device, preferably a cutting edge, for one and first time separating the Abgarstographies 18th
  • the nip N2 formed by the winding roller 2 and the new winding core 6 is reached by the initial separating piece 11, in which the initial separating piece 11 is at least temporarily and sufficiently firmly connected in its region 11.1 with the new winding core 6 by means an adhesive, vulcanization, Velcro, Saugknopf-, form-fitting, Reib gleich- or welded connection or a magnetic or electrostatic connection with the new hub 6 is prepared by these means.
  • the discharge strip 18 is, as already mentioned, produced by a first separating device 9.1.
  • the cut start of the dividing lines 9.11 of the AbgarstMails 18 parallel, punctiform and enlarging or crossing and enlarging can be made. Since this way of making a cut start counts to the known state of the art, it will not be discussed further here. Rather, reference is made, for example, to the already mentioned European patent application EP 0 543 788 A1.
  • first and / or the second separating device 9.1, 9.2 in a common assembly with preferably common components, in particular a common carrier, arranged.
  • the formation of only an opening in the form of a cut is sufficient to create the condition for the creation of a large enough area for the introduction of an initial separator.
  • the sufficiently large area can be created, for example, by means of an element dipping into the section with an outer contour which expands in the running direction of the material web or by means of a guide of the cut material web via a spreader roller.
  • FIG. 4 shows the continuation of FIG. 3.
  • the widths of the web starts transferred to the new winding core 6 are now increased by means of a second separating device 9.2 such that the entire material web 3 is transferred to the new winding core 6.
  • the generation of the transfer strip 19 is set, preferably by moving together the two separation lines 9.11 or by switching off the first separator 9.1.
  • the second separating device 9.2 is preferably moved relative to the material web 3 in a plane approximately parallel to the material web 3, preferably at least substantially perpendicular to the running direction L of the material web 3, so that oblique dividing lines 9, 21 are produced.
  • the running material web 3 was now almost completely severed by means of the second separating device 9.2 and transferred to the appropriate extent to the new winding core 6.
  • FIG. 5 shows an embodiment according to the invention of the winding machine 1 in a schematic side view.
  • the introduction according to the invention of an initial separating piece 11 between the material web 3 and the winding roller 2 such that a region of the introduced initial separating piece 11 is not covered by the material web 3 is realized according to the invention by means of one of the dispensing devices 12, 12.1 or 12.2 in a direct or indirect way.
  • the dispenser 12, 12.1 or 12.2 for example, has the form and function of a paper magazine of a plotter or a printer with multi or single sheet delivery.
  • the merely indicated dispensing device 12 is arranged such that the initial separator piece 11 can be introduced at least into the region 11.1 of the opening 17 not covered by the material web 3 and substantially directly between the material web 3 and the winding roller 2.
  • the dispenser 12.1 can be arranged such that the initial separator 11 is first applied to the underside of the material web 3 and then by means of the material web 3 between the web 3 and the winding roller 2 can be introduced.
  • This variant offers a good possibility for introducing the initial separating piece 11, in particular in the case of limited space.
  • the dispensing device 12.2 can also be arranged so that the initial separating piece 11 can initially be applied to the lateral surface 4 of the winding roller 2 with temporary connection and then by means of the winding roller 2 between the two Material web 3 and the winding roller 2 can be introduced.
  • the temporary connection can be embodied by means of a vacuum, for example in the form of an adhesive connection a la "post it", or in the case of an evacuated winding roller which has become known from German published patent application DE 198 22 052 A1. It is also possible to provide a suitable dispensing device in the extension of the winding roller 2, as is usually the case with the known sheaves. Each of these variants may be advantageous depending on the guidance of the material web 3, their properties and the characteristics of the winding machine.
  • the dispensing device is mounted in an area above the material web and the initial separating piece, as already stated, at least in the region of the opening not covered by the material web and, directly or indirectly, between the web and the new hub introduces.
  • the initial separating piece may have the same contour, whereas the adhesive area between the initial separating piece and the material web must be specially designed, in particular with regard to its adhesion effect.
  • the first and / or second separating device 9.1, 9.2 can be arranged on the upper side or underside of the material web 3 in front of the nip N2 and at least one cutting element, preferably a cutting element with a high energy density beam, in particular a water jet or laser beam cutting element exhibit.
  • FIG. 6 shows an exemplary embodiment of the initial separating piece 11 according to the invention.
  • the initial separator 11 whose thickness D is in the range of 0.5 mm to 0.05 mm, preferably in the range of 0.25 mm to 0.1 mm, as a molding of a plastic, a metal, a formed textile material or a pulp.
  • the initial separator 11 is provided for this connection with means 15, which means may extend over one, several or the entire part of the initial separator 11.
  • hot-melts which have neutral adhesive properties at ambient temperature and become connectable only after reaching a certain temperature
  • a hot-melt laminated initial separator similar to the single-sheet feeder of a commercial printer, easily and reliably fed from a supply cassette of the actual dispenser and the desired adhesive properties are activated by heat at a later date.
  • reactive hot-melt also only a temporary, at least for the duration of an initial rotation existing connection between the Initialtrenn Cambodia and the new hub are produced. Comparable benefits can be achieved through the use of encapsulated adhesives that are activated only by applying a certain pressure.
  • connection can also be designed as a form-locking connection, in particular a Velcro connection, as a welded connection, in particular a thermal welding connection, or as a magnetic connection, so that the initial separating piece is connected to the new winding core and its Can fulfill tasks
  • the task of the initial separating piece consists inter alia in the separation of the transfer strip and can be carried out in a plurality of material webs by means of a formed as a separating contour 13 edge.
  • a new web beginning bound to the initial separating piece 11 and the new winding core can be formed by separating the transfer strip enclosed between the new winding core and the initial separating piece 11 substantially completely by tearing along the separating contour 13 by the initial separating piece 11.
  • the corresponding edge can be formed under an angle matched to the tear behavior of the material web. Due to the process of the new web start between the new hub and the initial separator 11 is included and thus already tied to this.
  • the initial separator 11 can be additionally provided with, for example, adhesive areas 14, which can also be used for indirect introduction of the initial separator between the web and the winding roller by means of a dispenser.
  • adhesive areas 14 can also be used for indirect introduction of the initial separator between the web and the winding roller by means of a dispenser.
  • the initial separating piece 11 can also be provided with suitable means, not shown here, with which a temporary connection between the initial separating piece and the winding roller is produced when the initial separating piece is introduced indirectly by means of a dispenser between the transfer strip and the winding roller.
  • the initial separator 11 is formed from an extremely thin material. According to the invention, it is provided that the initial separating piece 11 is mounted prior to introduction between the web and the winding roller, also not shown, by means of a relatively easily detachable connection on at least one carrier 16, after training the new, to the initial separating piece 11 and the new hub bound web beginnings with the new hub is not carried.
  • the advantage of an initial separating piece 11 designed as a composite object consists in the almost unlimited design freedom of its physical and mechanical properties. Thus, for example, the material thickness can now be reduced without regard to the rigidity of the initial separating piece associated therewith, since the rigidity required for process reasons can be achieved by the carrier 16.
  • the carrier 16 may be formed so that the introduction of the initial separating piece 11 between the material web and the winding roller by means of a dispenser can be automated and performed absolutely reliable.
  • the initial separating piece can furthermore be designed as a composite object with means for separating the material web, with which the new web beginning by punching, cutting, pressing or embossing or by a combination thereof, with the aid of forces prevailing in the nip or by at least one additionally arranged in front of the nip , not shown auxiliary device, is formed.
  • the heat for separating the material web can also be applied by configuring the initial separating part with an electrical resistance wire as a means for separating.
  • the energy required for heat generation for example, by inductive means, preferably immediately before the nip, by means of a known device, not shown here are transferred without contact.
  • the relatively easily detachable connection between the initial separating piece and the carrier can be achieved, for example, as soon as a new, bound to the initial separating piece and the new hub web start is formed, whereby the carrier is deliberately not carried along with the new hub.
  • FIG. 7 shows a diagrammatic side view of a winding machine 1 when a material web 3 is fed onto a new winding core 6 in a state which arises sporadically, for example, after the material web 3 has been torn off.
  • the winding roll is then removed from the winding machine 1 and the web 3 is fed to a collecting container, not shown.
  • the new winding core 6 is not wrapped by the material web 3
  • the flow point Q of the material web 3 of the new winding core 6 with the nip N2 formed between the winding roller 2 and the new winding core 6 is identical.
  • FIG. 8 shows a diagrammatic side view of a winding machine 1 during the feeding of a material web 3 onto a new winding core 6 during a roll change.
  • the winding roll 5 forming the nip N1 together with the winding roll 2 has reached a predetermined diameter, the material web 3 is transferred onto the new winding core without interrupting the production process 6 listed.
  • the new winding core 6 is not wrapped by the material web 3 and the discharge point Q is identical to the nip N2.
  • the invention provides a method and a winding machine of the type mentioned, which allow optimal transfer of a moving web to a new hub with high process reliability, process efficiency and low investment and operating costs and the disadvantages of the prior art Avoid technology altogether.
  • the method can be practically applied to all known types of retractors and for a wide range of webs alike.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Manufacture Of Motors, Generators (AREA)
EP02785421A 2001-12-12 2002-12-11 Verfahren zum ueberfuehren einer laufenden materialbahn auf einen wickelkern sowie vorrichtung zur durchfuehrung des verfahrens Expired - Lifetime EP1456105B1 (de)

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EP05107461A EP1612173B8 (de) 2001-12-12 2002-12-11 Verfahren zum Überführen einer laufenden Materialbahn auf einen Wickelkern sowie Wickelmaschine zur Durchführung des Verfahrens

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
DE2001161073 DE10161073A1 (de) 2001-12-12 2001-12-12 Verfahren zum Überführen einer laufenden Materialbahn auf einen Wickelkern sowie Vorrichtung zur Durchführung des Verfahrens
DE10161073 2001-12-12
DE2001163554 DE10163554A1 (de) 2001-12-21 2001-12-21 Verfahren zum Überführen einer laufenden Materialbahn auf einen Wickelkern sowie Vorrichtung zur Durchführung des Verfahrens
DE10163554 2001-12-21
DE10201410 2002-01-15
DE10201410A DE10201410A1 (de) 2002-01-15 2002-01-15 Verfahren zum Überführen einer laufenden Materialbahn auf einen neuen Wickelkern sowie Vorrichtung zur Durchführung des Verfahrens
DE10206575 2002-02-18
DE10206575A DE10206575A1 (de) 2002-02-18 2002-02-18 Verfahren zum Überführen einer laufenden Materialbahn auf einen Wickelkern und Wickelmaschine
PCT/EP2002/014045 WO2003050026A1 (de) 2001-12-12 2002-12-11 Verfahren zum ueberfuehren einer laufenden materialbahn auf einen wickelkern sowie vorrichtung zur durchfuehrung des verfahrens

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EP1456105A1 EP1456105A1 (de) 2004-09-15
EP1456105B1 true EP1456105B1 (de) 2006-04-05

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EP05107461A Expired - Lifetime EP1612173B8 (de) 2001-12-12 2002-12-11 Verfahren zum Überführen einer laufenden Materialbahn auf einen Wickelkern sowie Wickelmaschine zur Durchführung des Verfahrens
EP02027756A Expired - Lifetime EP1319617B1 (de) 2001-12-12 2002-12-11 Verfahren zum Überführen einer laufenden Materialbahn auf einen Wickelkern und Wickelmaschine
EP02785421A Expired - Lifetime EP1456105B1 (de) 2001-12-12 2002-12-11 Verfahren zum ueberfuehren einer laufenden materialbahn auf einen wickelkern sowie vorrichtung zur durchfuehrung des verfahrens

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EP02027756A Expired - Lifetime EP1319617B1 (de) 2001-12-12 2002-12-11 Verfahren zum Überführen einer laufenden Materialbahn auf einen Wickelkern und Wickelmaschine

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US (1) US6929212B2 (ja)
EP (3) EP1612173B8 (ja)
JP (2) JP4171420B2 (ja)
CN (1) CN1321869C (ja)
AT (3) ATE354536T1 (ja)
AU (1) AU2002350723A1 (ja)
BR (1) BR0207367B1 (ja)
CA (2) CA2637323C (ja)
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EP1612173B8 (de) 2010-08-11
CA2470101A1 (en) 2003-06-19
BR0207367B1 (pt) 2011-09-20
CN1602278A (zh) 2005-03-30
JP2005511453A (ja) 2005-04-28
ATE346005T1 (de) 2006-12-15
DE50208767D1 (de) 2007-01-04
JP2008230859A (ja) 2008-10-02
AU2002350723A1 (en) 2003-06-23
EP1612173B1 (de) 2007-02-21
CA2470101C (en) 2009-02-10
CA2637323C (en) 2010-11-30
DE50209560D1 (de) 2007-04-05
EP1456105A1 (de) 2004-09-15
US6929212B2 (en) 2005-08-16
BR0207367A (pt) 2004-03-23
ATE322449T1 (de) 2006-04-15
CN1321869C (zh) 2007-06-20
US20040211859A1 (en) 2004-10-28
CA2637323A1 (en) 2003-06-19
EP1319617A1 (de) 2003-06-18
EP1319617B1 (de) 2006-11-22
WO2003050026A1 (de) 2003-06-19
DE50206342D1 (de) 2006-05-18
JP4171420B2 (ja) 2008-10-22
ATE354536T1 (de) 2007-03-15
EP1612173A1 (de) 2006-01-04

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