EP2149528A2 - Dispositif d'enroulement, notamment dispositif d'enroulement de cylindres d'appui - Google Patents

Dispositif d'enroulement, notamment dispositif d'enroulement de cylindres d'appui Download PDF

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Publication number
EP2149528A2
EP2149528A2 EP09162232A EP09162232A EP2149528A2 EP 2149528 A2 EP2149528 A2 EP 2149528A2 EP 09162232 A EP09162232 A EP 09162232A EP 09162232 A EP09162232 A EP 09162232A EP 2149528 A2 EP2149528 A2 EP 2149528A2
Authority
EP
European Patent Office
Prior art keywords
winding
material web
generating
flow
web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09162232A
Other languages
German (de)
English (en)
Other versions
EP2149528A3 (fr
Inventor
Christian Pringal
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 EP2149528A2 publication Critical patent/EP2149528A2/fr
Publication of EP2149528A3 publication Critical patent/EP2149528A3/fr
Withdrawn legal-status Critical Current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
    • B65H2301/41419—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
    • B65H2301/414—Winding
    • B65H2301/41419—Starting winding process
    • B65H2301/41425—Starting winding process involving blowing means, e.g. air blast
    • 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
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B65H2301/41486—Winding slitting winding on two or more winding shafts simultaneously
    • B65H2301/414863—Winding slitting winding on two or more winding shafts simultaneously directly against central support 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
    • B65H2301/513—Modifying electric properties
    • B65H2301/5132—Bringing electrostatic charge

Definitions

  • the invention relates to a winding device, in particular Stützwalzenwickelvorraum for winding a web, in particular paper, board or tissue web on a support on a central support roller to form a winding nip and anpresspressible winding sleeve to form a winding roll with means for supporting the Anwickelvorganges during transfer a front material web end to the winding tube.
  • a winding device in particular Stützwalzenwickelvoriques for winding a web, in particular paper, board or tissue web on a support on a central support roller to form a winding nip and anpresspressible winding sleeve to form a winding roll with means for supporting the Anwickelvorganges during transfer a front material web end to the winding tube.
  • Winding devices in particular in the form of Stützwalzwickelvorraumen are already known in various versions of the prior art.
  • partial material webs produced from a material web are preferably wound on in each case a winding tube to form a winding roller which is supported on a drivable support roller to form a winding nip.
  • the winding tube is guided on a support and / or guide device, comprising generally two on both sides of the winding tube arranged and retractable into this, rotatably mounted guide or clamping heads.
  • Such winding devices can be arranged in an online or offline construction to a machine for the production of fibrous webs.
  • a winding device comprising a support roller against which the winding roll to form a winding nip.
  • the material web is wound onto a solid core or drum and guided according to the increase in diameter of the pressure led away from the Anpresstrommel.
  • this is applied to the Anpresstrommel and by releasing the web tension or a Bruumschlingung for Material web forced to wind up on the new spool.
  • the Anwickelvorgang designed after a change of the spool or the winding tube is often not ideal, which is reflected in an extension of the change times. Problems prepares the acquisition of the material web through the winding tube and further ensuring the wrinkle-free concern of a frequently very wide wound material web on the winding tube.
  • the individual cores to be provided with a perforation which can be applied to an at least temporarily besaugbare and perforated expansion winding shaft, preferably pushed, that several, preferably all perforations of the winding tube with those of the expansion winding shaft are arranged at least partially overlapping.
  • the thereby taking place internal suction of the winding tube requires that the front web ends of the material web in the guide direction of this taken safely and sufficiently fixed to the winding tube, whereby the roll change can be completed process reliability with significantly reduced change times.
  • a major problem here is the wrinkle-free acquisition of the material web on the winding tube.
  • Out DE 87 15 861 U1 is a method for continuously winding webs of material, in particular films on a winding tube previously known, in which by generating a potential difference between the winding tube and wound material web adhesion of the front tail is generated on the surface of the winding tube.
  • the electrostatic charge is such that it is sufficient for one revolution of the winding tube.
  • winding devices in the form of support roll winding devices, which are characterized by the support of the weight of the winding roll to two mutually parallel rotatable support rollers, it is also known to assist the supply of the front material web end by means of blowing air.
  • the invention is therefore based on the object, a winding device in the form of a Stützwalzenwickelvorraum of the type mentioned in such a way that a secure winding of a front web tail on an empty winding tube and an effective, gentle and smooth adhesion to this in rotation in the circumferential direction free from the disadvantages known versions with the help of adhesive edges or adhesive tapes is guaranteed.
  • the solution according to the invention should also be suitable for the continuous winding of webs when using the winding device in slitter-winder, the solution should be characterized, if possible, by a low control engineering and design effort.
  • a winding device for winding a web, in particular paper, board or tissue web on a on a central support roller to form a winding nip supporting and anpresspressible winding sleeve to form a winding roll with means for supporting the Anwickelvorganges when transferring a front web end to the winding tube
  • the means for supporting the Anwickelvorganges two separate devices, means for generating a directed flow of a flow medium to support the guide, in particular transfer of the material web and another second Include means for supporting the adhesion of the web to the winding tube.
  • the solution according to the invention is free of measures on the winding tube and the supporting shaft, which are relatively difficult to access and structurally complex in the rule.
  • the devices for generating the potential difference and for generating a directed flow of a flow medium can be freely arranged depending on the wound webs and the boundary conditions of the corresponding winding process, in particular the arrangement of the winding tube and their configuration in an optimal manner in the device. Due to the separation of functions, the individual facilities can be made simpler.
  • the device for producing a directed flow of a flow medium to support the transfer of the material web and the further second means for supporting the adhesion of the material web to the winding tube are at least switchable, i. these can be activated and deactivated as needed.
  • the individual devices are preferably individually controllable and controllable with regard to the intensity of their effectiveness.
  • the individual devices for generating a directed flow of a flow medium to support the transfer of the material web and to support the adherence of the material web to the winding tube can be connected in series, ie they are successively effective on the material web.
  • both devices are connected in parallel, ie they are simultaneously effective on the material web, whereby their effects can be superimposed in an advantageous manner.
  • the device for generating the directed flow to support the transfer of the material web to the winding tube is arranged and aligned in the direction of passage of the wound web advantageously so that it is effective immediately downstream of the web in web direction of the winding nip on the web.
  • This is also preferably arranged and aligned such that it is effective in the circumferential direction of the winding tube of the actuating device upstream of the material web.
  • the material web free of interference and wrinkles safely and evenly across the width considered lead to the winding tube, so that the material web, in particular the beginning of the material web characterizing front End of the tail, safely guided to the winding tube without interference.
  • the solution according to the invention comprises two basic variants, which differ essentially in the design and arrangement of the second device for supporting the adhesion of the material web, in particular of the material web end on the winding tube, and can optionally be combined with one another.
  • the means for assisting adhesion is formed as means for generating a potential difference between the material web and the winding tube.
  • This may be formed, for example, as an ionization device comprising at least one generator for generating an electrostatic charge of the material web and / or the Winding tube or as a device for generating a corona discharge.
  • the distance of the device for generating a potential difference between the material web and the winding tube perpendicular to the material web or the surface of the winding tube ⁇ 100 mm, more preferably 10 to 80 mm, most preferably 20 to 50 mm.
  • the voltage to be applied to the device for generating a potential difference between the material web and the winding tube is chosen to be> 5 kV, preferably in the range from 10 to 25 kV, very preferably in the range from 15 to 20 kV.
  • the adjusting device for generating a corresponding force in the winding nip between the sleeve or the winding roller and the support roller usually comprises at least one, preferably a pair of pinch rollers, which are effective on the outer circumference of the winding tube or wound-web of the winding roll and on the force in the Winding gap is adjustable.
  • the means for generating a potential difference and the means for generating a directed flow in the web guiding direction downstream of the winding nip and arranged relative to the winding tube and aligned that they are effective on the emerging from the winding nip web on the previously supported by the support roller side
  • the device for generating the potential difference, there are basically two possibilities.
  • a first possibility is characterized in that it is effective on the winding tube.
  • a second advantageous solution is characterized in that it becomes effective directly on the material web.
  • both serve to create a potential difference between the material web and the winding tube.
  • the device comprises an ionization device, that is to say a device for Generation of an electrostatic charge between material web and winding tube.
  • the arrangement of the means for generating a directed flow and the means for generating a potential difference may be such that they are connected in series either in the direction of action or in parallel.
  • the first possibility has the advantage that the two can be arranged in an optimal manner in the winding device and also in their functioning coordinated with each other on the corresponding surface of the material web or the winding tube can be effective.
  • the first possibility offers the advantage that even with successively connected in series arrangement, the device for generating the potential difference free of the sleeve or the material web is assigned.
  • the second possibility of the parallel arrangement offers the advantage that the effect of the two can be used directly superimposed on one another and, as a result of the superimposing of the effect, both can be dimensioned smaller.
  • the arrangement successively can take place in such a way that either the ionization of the device upstream of the device for generating the directional flow or is arranged downstream.
  • the arrangement is arranged downstream.
  • a further means for supporting the guidance of the material web in addition to or in accordance with the second basic embodiment alternatively as a second means behind the pressure rollers, a further means for supporting the guidance of the material web, in particular in the form of a blowing device are provided, so that the guidance of the material web, in particular the material web beginning on the Winding sleeve can be supported almost over the entire guide range.
  • the device for generating a directed flow of a flow medium to support the transfer and / or the further device for generating a directed flow of a flow medium to support the guidance of the material web are preferably in a distance to the winding gap in the range of 10 ⁇ x ⁇ 250 mm, more preferably from 10 to 100 mm, most preferably 10 to 80 mm.
  • These comprise at least one tuyere which is arranged and oriented such that it generates a medium flow which is at an angle in the range of> 0 ⁇ 60 degrees, more preferably 10 to 55 degrees, most preferably 40 to 50 degrees with respect to a tangent to Support roller is aligned in the winding nip.
  • the individual devices for generating a directed flow of a flow medium to assist the transfer and / or the further device for assisting adhesion preferably extend at least over a partial region of the width of the material web or the support roller.
  • FIGS. 1a and 1b illustrate in schematic highly simplified representation based on two views of the structure of a winding device 1 in the form of a support roll winding device 2 for winding at least one material web M, in particular after a separation of a starting material web MG by longitudinal cutting into a plurality of material webs M1, M2.
  • the starting material web MG is preferably a fibrous web F, in particular in the form of a paper, board or tissue web.
  • the winding device 1 comprises a support roller 3 and at least one winding station 4a formed thereon.
  • the function of the support roller 3 consists in the support of a winding roller 6 when winding the material web M1 on a winding tube 7a to form a winding nip 9a.
  • the support roller 3 is preferably drivable.
  • the drive is realized in a particularly advantageous manner via a center drive. This is arranged in the region of the longitudinal axis L 3 of the support roller 3 and causes a rotation about this.
  • a center drive This is arranged in the region of the longitudinal axis L 3 of the support roller 3 and causes a rotation about this.
  • FIG. 1a also shown two or more such winding stations 4a, 4b are provided.
  • the winding rollers 6a and 6b which are supported on the support roller 3 in the individual winding stations 4a, 4b form winding gaps 9a and 9b with the support roller 3.
  • a coordinate system is introduced, wherein the X direction describes the direction of passage of the material web M1, M2 by the winding device 1, which simultaneously corresponds to the machine direction, while the Y direction represents the width direction of the winding device 1, which transversely is aligned to the X direction and the Z direction describes the height direction.
  • FIG. 1a illustrates a view in the XZ plane while FIG. 1b a view of the winding station 4a in a view from the left according to FIG. 1a , in particular the YZ-plane of the winding device 1 on the winding roller 6a reproduces.
  • the starting material web MG which is to be separated and then wound up in the form of individual partial webs, is divided by a longitudinal cutting device 5 into at least two, preferably a plurality of material webs M1, M2.
  • Each of these material webs M1, M2 is thereby guided by the back-up roll 3 to one of the winding stations 4a or 4b, in which they are wound up into winding rolls 6a and 6b around a winding sleeve 7a or 7b.
  • the two winding stations 4a and 4b are viewed in the circumferential direction of the support roller 3 offset from each other on the outer periphery 16 of this, but viewed in the width direction of the support roller 3 arranged side by side.
  • the individual winding station here by way of example the winding station 4a, comprises at least one support and / or storage device 8a for the winding roll 6a.
  • the winding roller 6a forms with the support roller 3 a winding nip 9a. This is variable by the position of the winding roller 6a relative to the support roller 3 with respect to the force acting in the winding nip 9a. This also applies analogously to the winding station 4b.
  • the individual winding roller 6a is supported on both sides of its end regions in the width direction via support elements 10.1, 10.2.
  • the support elements 10.1, 10.2 are transversely to the material web passage direction, that is guided displaceably parallel to the longitudinal axis L 3 of the support roller 3, preferably traversable.
  • the guide heads 11.1 and 11.2 are able to bear the weight of the winding roller 6a during winding completely or partially.
  • the guide or clamping heads 11.1, 11.2 are mounted slidably in their position in the radial direction around the circumference of the support roller 3, also rotatable.
  • the guide heads 11.1, 11.2 carry while winding the total weight of the winding roll 6a.
  • the winding roller 6a is pressed by an adjusting device 12a during winding with the required for the desired winding quality pressing force against the support roller 3 and rotated by this.
  • the adjusting device 12a comprises at the outer circumference 20 of the winding sleeve 7a and at the formation of the winding roller 6a at this pressure rollers 19 becoming effective.
  • the winding tube 7a is fixed in position and centered.
  • the material web M1 is guided in the circumferential direction of the support roller 3 by a portion of its outer periphery 16 on the example of the winding station 4a, which can be described by a wrap angle ⁇ .
  • means 14 are provided to support the guidance of a front tail 13 of the web M1, which allow takeover of the front end of the web 13 of the material web M1 through the winding tube 7a.
  • the means 14 may be designed in many forms, according to the invention, the means 14 are formed directly to influence the web guide.
  • first device 17 for generating a directed flow of a medium to support the guidance of the material web M1 or the front tail 13 during the Anwickelphase to the outer periphery 20 of the winding tube 7a and another second means 30 to support and enhance the adherence of the front Web end 13 of the material web M1 on the winding tube 7a, here according to a first particularly advantageous embodiment in the form of a device 15 for generating a potential difference between the wound material web M1 or the front end of the web 13 and the outer circumference 20 of the winding tube 7.
  • the front end of the web 13 corresponds to the separation of a material web MG lying in the guide direction beginning region of the material web M1.
  • the device 17 is preferably a blast air device which operates with ambient air.
  • the means 14 are arranged in the material web guiding direction of the adjusting device 12 in the form of the pressure rollers in the material web guiding direction on the winding sleeve 7a. This also applies to the device 15 for generating a potential difference.
  • the device 17 for generating a directed flow is arranged and designed such that it generates a medium flow which is effective on the side facing the support roller 3 side 18 of the material web M1.
  • the arrangement of the means 15 for generating the potential difference and the generation 17 for generating a directed flow is viewed in the direction of passage of the web M1 to the winding station 4 downstream of the winding nip 9a, but before the actuator 12 in the form of effective on the winding tube 7a pinch rollers 19, the on the outer circumference 20 of the winding tube 7a and later the wound material web M1 and thus the winding roller 6a are effective.
  • FIG. 2 clarified by means of an analog version to FIG. 1 a particularly advantageous arrangement and configuration of the individual means 15 for generating a potential difference and the means 17 for generating a directed flow at a winding station 4.
  • the support roller 3 characterized in the belt 22 with the wound material web M1 by a suction chamber 21 is, which preferably extends over the entire wrapping region 22, which is characterized by the wrap angle ⁇ . This causes a guide of the material web M to the support roller 3, these due to the on the Suction chamber 21 applied negative pressure wrinkle-free on the outer circumference 16 of the support roller 3 can be maintained and to the winding nip 9, which is formed by the winding tube 7 and the support roller 3 is guided.
  • the web M would pass after passing through the winding nip 9 continue straight ahead the broken line, that is quasi tangential continued on the outer circumference 16 of the support roller 3. Due to the directed flow, in particular in the form of an air flow, the material web M is now rather forced to wrap around the winding tube 6, so that the front tail 13 does not lift off from the outer periphery 20 of the winding tube, but between the actuator 12 and the outer periphery 20 of Winding sleeve 7a passes.
  • the second means 30 in the form of the means 15 for generating a potential difference is effective, which causes the web is still held behind the adjusting device 12 to the winding tube 6.
  • the devices 17 and 15 are arranged here in series and switchable in parallel or in series.
  • the intensity of the effect of the individual device 15, 17, in particular of the air flow and the size of the potential difference can be controlled.
  • the device 17 is designed as a blowing device, preferably comprising at least one nozzle 25 directed toward the material web M and extending in the width direction.
  • a plurality of nozzles connected in series can also be provided, the flow of the medium being influenced by these.
  • the directed flow of a flow medium, in particular of air, is a function of the characteristics and operating parameters of the nozzle 25 and the orientation of these and the parameters at the nozzle outlet 27 for the medium. According to the arrangement and alignment of the nozzle 25 of the device 17 for generating a directed flow of a medium behind the winding nip 9 takes place on the supported by the support roller 3 to the winding nip bottom 18.
  • the distance x of Nozzle outlet 27 is in the range between 10 and 250 mm, more preferably 10 and 100 mm, most preferably 10 and 80 mm.
  • the angle ⁇ between a theoretical connecting line from the winding nip 6 to the nozzle exit 27 and a tangent to the angular gap 6 to the support roller is in the range between 0 and 60 degrees, preferably 10 and 55 degrees, most preferably 40 and 50 degrees.
  • a directed flow relative to the surface of the support roller 3 is constructed such that a detachment of the material web M takes place behind the winding nip 9 by a further running of the material web M is prevented in the tangential direction, wherein on the surface of the support roller 3 directed flow Type support layer is generated, which leads the material web M.
  • the distance y between the winding nip 9 and the device 15 is in the range between 10 and 80 mm, particularly preferably 20 and 60 mm, very particularly preferably between 20 and 30mm.
  • the voltage applied for generating the potential difference is selected in the range between 5 and 30 kV, more preferably 10 and 25 kV, most preferably 15 and 20 kV. Depending on the design and arrangement of the device for generating the potential difference 15, this can be effective either on the material web M or the winding tube 7.
  • the potential difference can be generated by charging the material web M with respect to the winding tube 7 and / or vice versa.
  • the devices 15 may also be referred to as charging generators, which are commercially available devices and characterized by a relatively simple structure.
  • the electrostatic charge generated by the charging generator of the material web M and / or the winding tube 7 is sufficient to spend in the vicinity of the sleeve located front end 13 of the new track section to the associated sleeve 7 back and to adhere to this.
  • this comprises an ionization device.
  • the structure of such an ionization device is exemplary in the FIG. 5 played. Visible here is the material web M1 and the device 15 for generating a potential difference in the form of the ionization device 28, which is arranged opposite the material web M such that it is charged electrostatically.
  • the sleeve 7, on which the material web M1 is wound is grounded or grounded. This is designated 29.
  • the potential equalization takes place here through the material web M.
  • the distance X that is to say the distance between the immediate effective region of the ionization device and the influencing side, here the underside 18 of the material web, is in the range between> 0 and ⁇ 100 mm, very particularly preferably ⁇ 25 mm ,
  • the applied voltage to achieve the charge is> 5 kV.
  • FIGS. 1a and 2 illustrate a basic embodiment of the winding device 1 according to the invention with the means for supporting the guidance of a front tail 13 on a winding tube 7 and thus to support the winding, which are designated 14.
  • the device 17 of the device 15 is connected upstream.
  • This is exemplary in a schematic simplified representation of the material web M in the FIG. 3a clarified.
  • FIG. 3b illustrates the FIG. 3b an alternative embodiment in which the devices 15 and 17 are effectively effective in parallel, that is, at the same time on the material web M to develop their effect.
  • the means 15 for generating a potential difference in front of the device 17 on the material web M is effective.
  • FIGS. 3a to 3c Arrangement options shown represent basic arrangement options. These can be supplemented by further designs and arrangements of ancillary equipment.
  • FIG. 3a illustrated by broken line behind the pressure rollers 19 of the actuator 12 to provide a further means 24 for generating a directed flow, which is also effective on the side 18 of the web M1, which was supported on the support roller 3 and thus on the winding tube 7 of this is directed away.
  • This version can also in the designs de FIGS. 3b and 3c be supplemented.
  • FIG. 4 illustrates a second inventive embodiment of the means 14 with a second device 30 in the form of a device 24 for generating a directed flow, which is effective on the guided on the winding tube 7 material web M following the adjusting device 12. Visible is the material web M with its voltage applied to the winding sleeve 7 top 23 and its bottom 18, the bottom 18, the support roller 3 contacted in the wrap over the wrap ⁇ , while the opposite top 23 after passing through the winding nip 9 on the outer circumference 20 of the winding tube 7 is present.
  • the pressure rollers 19 before and after the adjusting device 12, in particular the pressure rollers 19, in each case a device 17 and 24 are provided for generating a directed flow.
  • this is in each case designed as a blowing device, preferably comprising at least one nozzle 25 and 26 directed towards the material web M and extending in the width direction.
  • a plurality of nozzles connected in series can also be provided, the flow of the medium being influenced by these.
  • the directed flow of a flow medium, in particular of air, is characterized as a function of the properties of the individual nozzles 25 and 26 and the orientation of these and the parameters at the nozzle exit for the medium.
  • the individual nozzle outlets are designated here by way of example with 27 and 28.
  • ⁇ The angle between a theoretical connection line from the winding nip 9 to the nozzle exit 27 and a tangent in the angular gap 9 to the support roller 3 is denoted by ⁇ and is in the range between 0 and 60 degrees, preferably 10 to 55 degrees, most preferably 40 to 50 degrees.
  • the arrangement and alignment of the nozzle 26 of the device 24 is such that it is arranged at a distance x in the range between 10 to 250 mm, more preferably 10 to 100 mm, most preferably 10 to 80 mm to the winding nip 9, wherein the distance is determined directly between winding nip 9 and nozzle outlet 28.
  • the theoretical connecting line between the winding nip 9 and the nozzle outlet 28, which also describes the direction of flow, is based on a tangent to the support roller 3 in the winding nip 9 at an angle ⁇ between 0 and 60 degrees, preferably 10 to 55 degrees, completely more preferably aligned 40 to 50 degrees.

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  • Replacement Of Web Rolls (AREA)
  • Treatment Of Fiber Materials (AREA)
EP09162232A 2008-07-31 2009-06-09 Dispositif d'enroulement, notamment dispositif d'enroulement de cylindres d'appui Withdrawn EP2149528A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810040883 DE102008040883A1 (de) 2008-07-31 2008-07-31 Wickelvorrichtung, insbesondere Stützwalzenwickelvorrichtung

Publications (2)

Publication Number Publication Date
EP2149528A2 true EP2149528A2 (fr) 2010-02-03
EP2149528A3 EP2149528A3 (fr) 2011-07-13

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EP09162232A Withdrawn EP2149528A3 (fr) 2008-07-31 2009-06-09 Dispositif d'enroulement, notamment dispositif d'enroulement de cylindres d'appui

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DE (1) DE102008040883A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112079159A (zh) * 2020-10-10 2020-12-15 海宁市米奥服饰有限公司 一种可避免收卷过程产生褶皱的卷布装置

Citations (3)

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Publication number Priority date Publication date Assignee Title
DE8715861U1 (de) 1986-12-04 1988-01-21 Looser, Gottlieb, Balzers Einrichtung zum kontinuierlichen Wickeln von laufenden Materialbahnen
WO1998052858A1 (fr) 1997-05-16 1998-11-26 Voith Sulzer Papiertechnik Patent Gmbh Procede de bobinage continu d'une bande de materiau et bobineuse correspondante
DE202006017029U1 (de) 2006-11-08 2007-01-04 Voith Patent Gmbh Wickelmaschine zum Aufwickeln von aus einer Materialbahn erzeugten Teilmaterialbahn

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