EP1638875B1 - Method and means for unrolling perforated multiple rolls - Google Patents

Method and means for unrolling perforated multiple rolls Download PDF

Info

Publication number
EP1638875B1
EP1638875B1 EP04736893A EP04736893A EP1638875B1 EP 1638875 B1 EP1638875 B1 EP 1638875B1 EP 04736893 A EP04736893 A EP 04736893A EP 04736893 A EP04736893 A EP 04736893A EP 1638875 B1 EP1638875 B1 EP 1638875B1
Authority
EP
European Patent Office
Prior art keywords
unrolling
webs
web
multiple roll
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
EP04736893A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1638875A1 (en
Inventor
Bengt BJÖRK
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.)
Duni AB
Original Assignee
Duni AB
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 Duni AB filed Critical Duni AB
Priority to PL04736893T priority Critical patent/PL1638875T3/pl
Publication of EP1638875A1 publication Critical patent/EP1638875A1/en
Application granted granted Critical
Publication of EP1638875B1 publication Critical patent/EP1638875B1/en
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
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/02—Supporting web roll
    • B65H16/021—Multiple web roll supports
    • 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
    • B65H2301/413—Supporting web roll
    • B65H2301/4139—Supporting means for several rolls
    • B65H2301/41398—Supporting means for several rolls juxtaposed

Definitions

  • This invention refers to a method and means for unrolling perforated multiple rolls and specifically to means for unrolling at least one narrow web of material at a time from perforated multiple rolls having webs of material preferably consisting of dryformed paper.
  • the invention also refers to a method for unrolling individual webs of material from a multiple roll containing a plurality of narrow webs of material of preferably dryformed paper interconnected by perforating and with or without superabsorbent intended for subsequent conversion, for example hygenic products such as sanitary pads.
  • the object of this invention is to provide a new type of unrolling equipment for perforated multiple rolls, particularly thick or soft and narrow webs of material, such as dryformed paper with or without superabsorbents.
  • the mentioned problem is solved by the method and means of the invention.
  • the characteristic features of the invention are disclosed in the appended claims.
  • the invention utilizes unrolling means comprising a locking disc operating by vacuum and locking the multiple roll in the unrolling process, particularly when only a few webs of material of the multiple roll remain, in combination with a support member which in the relevant case consists of disc-shaped elements which may be swung in directions towards each other, locking the remaining webs of material in position in the unrolling means so that they do not tilt or collapse when being unrolled.
  • unrolling means comprising a locking disc operating by vacuum and locking the multiple roll in the unrolling process, particularly when only a few webs of material of the multiple roll remain, in combination with a support member which in the relevant case consists of disc-shaped elements which may be swung in directions towards each other, locking the remaining webs of material in position in the unrolling means so that they do not tilt or collapse when being unrolled.
  • the vacuum of the locking disc is retained intact during the entire unrolling period when the multiple roll, which consists of a mother roll and is formed by a plurality of component rolls held together by perforations, is unrolled. During the unrolling at least one component roll at a time is detached for subsequent conversion.
  • the vacuum apertures can be provided with gaskets of of rubber or plastic around the respective apertures or in sections so as not to lose vacuum power between the locking disc and particularly the last unrollable web of material from the multiple roll.
  • unrolling means 1 in accordance with the invention for a multiple roll 2 comprising at least one narrow web 3 of material which via perforations 10 comprises a plurality of adjacent webs 3 of material.
  • the webs 3 of material are preferably composed of dryformed paper which is intended to be converted into for example hygenic products, such as sanitary pads.
  • the unrolling means comprise a frame 4 which mountably carries a locking disc 5, from the center of which a shaft 6 for carrying the relevant multiple roll 2 extends outwardly.
  • the locking disc 5 exhibits a plurality of apertures 7 disposed in its surface which are connected to a vacuum source 8 over a connector 9 for drawing the multiple roll 2 against the locking disc 5 by means of vacuum. In this manner, multiple roll 2 is locked in position during the actual unrolling concurrently with the respective webs 3 of material included in roll 2 being detachable along perforations 10.
  • Figures 6-10 respectively, schematically show the manner in which the unrolling means 1 function after a multiple roll 2 for unrolling is positioned on shaft 6.
  • the unrolling has reached a state in which only one web 3 of material of multiple roll 2 remains for unrolling.
  • support members 11 in the form of disc-shaped elements 12, 13 are lowered, said elements being rotatably mounted at their upper edges 14, 15 in the upper portion 16 of the frame 4 so that they can swing down in front of said web 3 of material so as to prevent the latter from collapsing or tilting when it is being unrolled from shaft 6.
  • Figures 16-20 This is more specifically illustrated in Figures 16-20, respectively.
  • the disc-shaped elements 12,13 engage the exterior 19 of the relevant web 3 of material.
  • a guide roll 17 having a width at least corresponding to the total width of multiple roll 2 is placed at the lower portion of frame 4 in the illustrated example, said guide roll 17 causing the relevant unrolled web component or narrow web 3 of material to emerge from the unrolling means parallel to the plane of the floor.
  • each web component has folding pins 18 disposed preferably at 45° of the longitudinal direction of the webs 3, around which the extended or unrolled web component slides and is folded 90°, whereby all unrolled components of web 3 are made to pass linearly to the actual joining equipment in correct position for performing the joining.
  • invention also concerns a method for unrolling individual webs 3 of material from a multiple roll 2 comprising a plurality of narrow webs 3 of material interconnected by perforations 10, said webs preferably being dryformed paper with or without superabsorbent, intended for subsequent conversion for example to hygenic products, such as sanitary pads.
  • a multiple roll 2 is placed in the unrolling means 1 on a shaft 6 comprised therein.
  • multiple roll 2 is affixed to locking disc 5 which is subjected to vacuum, and after the vacuum affixing, the respective web 3 of material is unrolled from multiple roll 2 along the perforation 10 which connects the respective web 3 of material, until in the normally occurring case only one web 3 of material remains on shaft 6, in which case at least one support member 11 and in the relevant case two disc-shaped elements 12,13 which may swing down are made to engage the exterior 19 of the remaining web 3 of material.
  • the unrolling of the last web 3 of material from shaft 6 it is prevented from collapsing or tilting, as during the entire unrolling, in addition to the decreasing vacuum, it also has support outwards against the disc-shaped elements 12,13.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Basic Packing Technique (AREA)
  • Unwinding Webs (AREA)
  • Crushing And Grinding (AREA)
  • Catching Or Destruction (AREA)
  • Centrifugal Separators (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP04736893A 2003-06-24 2004-06-15 Method and means for unrolling perforated multiple rolls Expired - Lifetime EP1638875B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04736893T PL1638875T3 (pl) 2003-06-24 2004-06-15 Sposób i środki do rozwijania perforowanych zwojów wieloczęściowych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0301723A SE525361C2 (sv) 2003-06-24 2003-06-24 Sätt och anordning för avrullning av perforerade multipelrullar
PCT/SE2004/000941 WO2004113210A1 (en) 2003-06-24 2004-06-15 Method and means for unrolling perforated multiple rolls

Publications (2)

Publication Number Publication Date
EP1638875A1 EP1638875A1 (en) 2006-03-29
EP1638875B1 true EP1638875B1 (en) 2007-10-17

Family

ID=29212457

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04736893A Expired - Lifetime EP1638875B1 (en) 2003-06-24 2004-06-15 Method and means for unrolling perforated multiple rolls

Country Status (8)

Country Link
EP (1) EP1638875B1 (sv)
AT (1) ATE375953T1 (sv)
DE (1) DE602004009576T2 (sv)
ES (1) ES2293266T3 (sv)
HK (1) HK1093955A1 (sv)
PL (1) PL1638875T3 (sv)
SE (1) SE525361C2 (sv)
WO (1) WO2004113210A1 (sv)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104210869A (zh) * 2014-08-15 2014-12-17 湖州倍格曼新材料有限公司 一种便于橡胶履带打标用进料装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401044B (de) * 1993-12-16 1996-05-28 Koren Erwin Lamellenring, insbesondere für breitstreckwalzen, sowie damit versehene einrichtung zur führung bahnförmiger materialien und verfahren zu deren herstellung
DE29709611U1 (de) * 1997-06-03 1997-07-31 Maschinenfabrik Goebel Gmbh, 64293 Darmstadt Verarbeitungsmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104210869A (zh) * 2014-08-15 2014-12-17 湖州倍格曼新材料有限公司 一种便于橡胶履带打标用进料装置

Also Published As

Publication number Publication date
DE602004009576T2 (de) 2008-07-24
HK1093955A1 (en) 2007-03-16
ATE375953T1 (de) 2007-11-15
PL1638875T3 (pl) 2008-02-29
SE0301723D0 (sv) 2003-06-24
ES2293266T3 (es) 2008-03-16
SE525361C2 (sv) 2005-02-08
WO2004113210A1 (en) 2004-12-29
EP1638875A1 (en) 2006-03-29
SE0301723L (sv) 2004-12-25
DE602004009576D1 (de) 2007-11-29

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