EP0393519B1 - Vorrichtung zum Aufwickeln einer Folienbahn - Google Patents

Vorrichtung zum Aufwickeln einer Folienbahn Download PDF

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Publication number
EP0393519B1
EP0393519B1 EP90107063A EP90107063A EP0393519B1 EP 0393519 B1 EP0393519 B1 EP 0393519B1 EP 90107063 A EP90107063 A EP 90107063A EP 90107063 A EP90107063 A EP 90107063A EP 0393519 B1 EP0393519 B1 EP 0393519B1
Authority
EP
European Patent Office
Prior art keywords
roller
film
rollers
contact
contact 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
EP90107063A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0393519A2 (de
EP0393519A3 (de
Inventor
Hajo Dr. Hagens
Thomas Heusel
Reinhard Kober
Stefan Sinzig
Wolfgang Dipl.-Ing. Oberhausen
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of EP0393519A2 publication Critical patent/EP0393519A2/de
Publication of EP0393519A3 publication Critical patent/EP0393519A3/de
Application granted granted Critical
Publication of EP0393519B1 publication Critical patent/EP0393519B1/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
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/26—Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/16—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web by friction 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
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/14—Roller pairs
    • B65H2404/144—Roller pairs with relative movement of the rollers to / from each other
    • B65H2404/1441—Roller pairs with relative movement of the rollers to / from each other involving controlled actuator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/40—Shafts, cylinders, drums, spindles
    • B65H2404/43—Rider roll construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/40—Shafts, cylinders, drums, spindles
    • B65H2404/43—Rider roll construction
    • B65H2404/432—Rider roll construction involving a plurality of parallel rider rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/20—Avoiding or preventing undesirable effects
    • B65H2601/21—Dynamic air effects
    • B65H2601/211—Entrapping air in or under the material

Definitions

  • the invention relates to a device for winding a film web onto a winding core to form a film winding, with a contact roller, via which the film web is fed to the film winding, the contact roller and the film winding running in opposite directions at the same peripheral speed, with two axially parallel to the winding core and to the contact roller rollers arranged in a film wrap, which are in pressure contact with the film web on the film winder or with the film web on the contact roller.
  • Such a device for winding a film web is known from DE-A1 37 10 412 and works, for example, satisfactorily for winding speeds of the film webs up to about 100 m / min with very thin film webs, e.g. 3 ⁇ m PET films.
  • the winding of the film web is of considerable importance as the last step in the process, since here the specification-compliant film web can be so "wrongly" wound that there can be a total loss of the film roll due to damage to the film web, in particular due to storage .
  • a particularly important problem in this connection is the phenomenon that, when the film web is wound, considerable amounts of air are also wrapped in the film roll. A part of this wrapped air escapes from the film roll during storage; This can result in various errors in and on the film roll, such as dips, stretching and transverse waves, which can lead to the film roll being completely unusable.
  • the object of the invention is to improve the device described in the introduction and to further develop it for winding up a film web in such a way that the winding speed can be increased significantly and the application is also possible for ultra-thin films with film thicknesses of up to approximately 1 ⁇ m.
  • the contact roller has a smooth, hard surface layer which has an average roughness Ra less than 0.4 ⁇ m and a Brinell hardness greater than 10 HB 2.5 / 62.5.
  • the advantage is achieved that the rollers for squeezing the air boundary layers with the hard smooth surface of the contact roller with certain hardness and predetermined center roughness work together so effectively that ultra-thin films with significantly increased winding speed compared to the previous method, without loss of hardness Wraps or loss of quality, for example in the wrinkle freedom of the winding, can be wound up.
  • a film web 1 is guided for winding onto a winding core 2 via a contact roller 3 which bears against a film winding 8.
  • the film roll and the contact roller move in opposite directions to each other with the same Peripheral speed.
  • the air boundary layers are squeezed off over the entire width of the film web by mechanical pressure.
  • the distance between the contact or merging point of the two film webs and the pinching points on the film webs, ie the depth of the gusset, which is limited by the film wrap and the contact roller, is kept as small as possible and is 13 to 200 mm.
  • a film web 1 is guided over a contact roller 3, runs onto a winding core 2 or a film winding 8 at a contact point 7 and is wound thereon.
  • the fact that considerable amounts of air occur and are wrapped up in a tapered gusset 6 between the film winding 8 and the contact roller 3 can be explained by the fact that air boundary layers 4, shown hatched in FIG Contact point 7 are promoted.
  • These friction-related air boundary layers 4 exist both on the outside of the film web 1, which is guided over the contact roller 3, and on the circumferential surface or the outer layer of the film web 1 on the film winding 8.
  • the contact roller 3 has a hard, smooth surface layer 20 which has an average roughness Ra less than 0.4 ⁇ m and a Brinell hardness greater than 10 HB 2.5 / 62.5.
  • the Brinell hardness HB is determined according to the Brinell hardness test as defined in the DIN standard 50351.
  • the number combination 2.5 / 62.5 means that the hardness measurement is carried out with a ball of 2.5 mm in diameter, which is pressed against the surface layer 20 with a test force of 62.5 kp ( ⁇ 613 N).
  • the center roughness is chosen the smaller, the thinner the film web to be wound.
  • the average roughness is generally in the range 0.001 ⁇ m ⁇ Ra ⁇ 0.4 ⁇ m, preferably Ra ⁇ 0.03 ⁇ m, measured according to DIN 7162.
  • the device described enables the winding of ultra-thin films, e.g. PET films with a thickness of 2 ⁇ m, at speeds up to approximately 220 m / min.
  • ultra-thin films e.g. PET films with a thickness of 2 ⁇ m
  • the surface layer 20 of the contact roller 3 can also be formed by thermal spraying, e.g. Plasma spraying of oxides or carbides, such as silicon, chromium oxide or silicon carbide, can be applied.
  • thermal spraying e.g. Plasma spraying of oxides or carbides, such as silicon, chromium oxide or silicon carbide, can be applied.
  • the air-displacing rollers 5a and 5b have diameters of 7.5 to 50 mm and extend over the entire width of the film web.
  • the distance between the contact point 7 and the rollers 5a and 5b should be as small as possible in order to avoid the formation of air boundary layers in the gusset 6 or to keep it as small as possible.
  • the diameters of the rollers 5a and 5b are selected to be small compared to the diameter of the contact roller 3 and the winding core 2 or the film roll 8, the diameters of the rollers 5a and 5b generally being the same size, but can also be of different sizes .
  • the roller diameters correspond to 0.1 to 0.5 times, in particular 0.15 to 0.3 times the contact roller diameter and 0.05 to 0.3 times, in particular 0.1 to 0 , 2 times the winding core diameter.
  • the roll 5a which is in contact with the film web 1 on the film roll 8, has a smooth, hard surface layer 21, as can be seen from FIG. 3.
  • the material of the surface layer 21 and the type of application of the surface layer on the roller body of the roller 5a match the material and the type of application the surface layer 20 on the contact roller 3. Because of the small diameter of the roller 5a compared to the contact roller 3, it can also be made of solid material and the surface can then be machined accordingly in order to meet the above-mentioned conditions for hardness and center roughness.
  • the roller 5b which is in contact with the film web 1 on the contact roller 3, has a hard elastic surface, generally a hard rubberized surface.
  • rollers 5a and 5b can only permanently remove the air boundary layers 4 if they are pressed with strong pressure against the film roll 8 rolled up on the winding core 2 or against the film web 1 running over the contact roller 3. This is served by the device parts 9 to 16, which are described below.
  • the roller 5b abutting the contact roller 3 is arranged to be stationary during the seeded winding process, each of which Each end is pressed against the contact roller 3 by a cylinder 11 via an angle lever 10.
  • the two cylinders 11 are in turn attached to the contact roller holder 9.
  • the roller 5a resting on the film winding 8 must be arranged to be movable. This is ensured by a cylinder 12 which is rotatably mounted in a joint 13 and a spacer 16 which is rotatable in joints 14 and 15, which together guide the roller 5a and, with increasing winding diameter, permit its displacement relative to the stationary roller 5b.
  • the spacer 16 and the two joints 14 and 15, for example ball bearing joints, are shown enlarged together with the cylinder 12 in FIG. 2.
  • the contact roller 3 and the film roll 8 and thus also the rollers 5a and 5b have one and the same peripheral speed, for safety reasons there should always be a small distance of 0.2 to 5.0 mm, in particular of between the rollers 5a and 5b 0.5 to 1 mm, can be provided in order to avoid blocking or stuttering in the event of contact when there are small speed differences between the rollers 5a and 5b.
  • the widths of the film webs 1 are up to 1000 mm, but wider film webs can also be used with such Device can be wrapped. If, in the case of wider film webs, the mechanical stability of the rollers 5a and 5b is no longer sufficient with only suspension at the roller ends, then instead of a one-part roller 5a, as shown in FIG. 3, which has a uniform contour or constant diameter over the entire length and is seated on an axis 18, also a roller 5a 'consisting of two or more sections 17, 17' (see FIG. 3) can be used. These sections have a uniform diameter and are also seated on an axis 18. The mechanical load on the multi-part roller can be reduced by attaching further cylinders 11 and 12 to roller spacers 19.
  • the multi-part structure can also be used for the roller 5b, in which case hard elastic or rubber layers are used instead of the surface layers 21.
  • the roller spacers 19 have a diameter smaller than the roller diameter of the sections 17, 17 'and form a recessed roller area between two adjacent sections of the multi-part roller 5a'.

Landscapes

  • Winding Of Webs (AREA)
EP90107063A 1989-04-21 1990-04-12 Vorrichtung zum Aufwickeln einer Folienbahn Expired - Lifetime EP0393519B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3913131A DE3913131A1 (de) 1989-04-21 1989-04-21 Verfahren und vorrichtung zum aufwickeln einer folienbahn
DE3913131 1989-04-21

Publications (3)

Publication Number Publication Date
EP0393519A2 EP0393519A2 (de) 1990-10-24
EP0393519A3 EP0393519A3 (de) 1991-07-31
EP0393519B1 true EP0393519B1 (de) 1994-05-18

Family

ID=6379145

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90107063A Expired - Lifetime EP0393519B1 (de) 1989-04-21 1990-04-12 Vorrichtung zum Aufwickeln einer Folienbahn

Country Status (4)

Country Link
US (1) US5039023A (enrdf_load_stackoverflow)
EP (1) EP0393519B1 (enrdf_load_stackoverflow)
JP (1) JPH02305747A (enrdf_load_stackoverflow)
DE (2) DE3913131A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6189825B1 (en) 1998-04-30 2001-02-20 Hoechst Trespaphan Gmbh Method for controlling the winding density of film rolls

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4112536C2 (de) * 1991-04-17 1994-03-03 Escher Wyss Gmbh Saug- und Blasvorrichtung
GB9114535D0 (en) * 1991-07-05 1991-08-21 Wiggins Teape Group Ltd Improvements in apparatus for limiting the entrainment of air between the turns of a reel of web material during the reeling thereof
ATE129983T1 (de) * 1991-10-19 1995-11-15 Jagenberg Ag Wickelmaschine zum aufwickeln von materialbahnen, insbesondere papier- oder kartonbahnen.
DE4218825C2 (de) * 1992-06-09 1995-02-23 Koenig & Bauer Ag Vorrichtung zum Verbinden zweier Papierbahnen
DE4414396C3 (de) * 1994-04-26 2002-02-07 Jagenberg Papiertech Gmbh Trag- oder Stützwalze für eine Wickelmaschine
US5533690A (en) * 1994-06-02 1996-07-09 Minnesota Mining And Manufacturing Company Strand alignment devices for high speed winding of magnetic tape
US5803398A (en) * 1995-09-07 1998-09-08 Eastman Kodak Company Multiple durometer pressure roller
JPH1053361A (ja) * 1996-06-06 1998-02-24 Eastman Kodak Co コアにウェブ材料を巻き付けるための方法および装置
DE29610197U1 (de) * 1996-06-13 1997-10-16 Beloit Technologies, Inc., Wilmington, Del. Belastungswalzenanordnung für Wickelmaschinen
DE19825723A1 (de) * 1998-06-09 1999-12-16 Schloemann Siemag Ag Vorrichtung zum Positionieren einer beim Bundaufbau gegen den Haspeldorn eines Bandhaspels verlagerbaren und anstellbaren Glättrolle
DE19839916A1 (de) 1998-09-02 2000-03-09 Jagenberg Papiertech Gmbh Verfahren und Vorrichtung zur Verminderung des Volumens oder Drucks eines Fluids, das von sich bewegenden Oberflächen in einen Spalt eingeschleppt wird
DE19908496A1 (de) * 1999-02-26 2000-08-31 Voith Sulzer Papiertech Patent Wickelmaschine zum kontinuierlichen Aufwickeln einer Materialbahn
EP1061024A1 (en) 1999-06-16 2000-12-20 E.I. Du Pont De Nemours And Company Apparatus and method for winding of webs
EP1216941A1 (en) * 2000-12-20 2002-06-26 E.I. Du Pont De Nemours And Company Apparatus and method for winding of webs
EP1306333A1 (en) * 2000-12-20 2003-05-02 E.I. Du Pont De Nemours And Company Apparatus and method for winding of webs
FI111033B (fi) * 2001-06-15 2003-05-15 Metso Paper Inc Menetelmä rullan tiheyden määrittämiseksi
US6808581B2 (en) * 2001-06-15 2004-10-26 3M Innovative Properties Company Method and apparatus for automatically applying a flying splicing tape to a roll of sheet material
US6814123B2 (en) 2001-12-21 2004-11-09 3M Innovative Properties Company Method and apparatus for applying a splicing tape to a roll of sheet material
DE102004012727A1 (de) * 2004-03-16 2005-10-06 Voith Paper Patent Gmbh J-Linie
US7427045B2 (en) * 2004-12-09 2008-09-23 Fujifilm Corporation Tape winder and method of processing tape
EP2799378B1 (en) * 2011-12-27 2019-09-18 Toray Industries, Inc. Manufacturing device and manufacturing method for microporous plastic film roll
JP2014156305A (ja) * 2013-02-15 2014-08-28 Miyakoshi Printing Machinery Co Ltd 巻取り装置
KR20200123744A (ko) * 2019-04-22 2020-10-30 스미또모 가가꾸 가부시키가이샤 터치롤 및 권취 장치
JP2023173157A (ja) * 2022-05-25 2023-12-07 コニカミノルタ株式会社 フィルムロール、その製造方法、偏光板、及び表示装置

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DE3030917A1 (de) * 1980-08-16 1982-04-01 Agfa-Gevaert Ag, 5090 Leverkusen Bahnleitwalze fuer hohe geschwindigkeiten und verfahren zu ihrer herstellung
DE3265570D1 (en) * 1981-05-06 1985-09-26 Teijin Ltd Polyester film roll
DE3710412A1 (de) * 1987-03-28 1988-10-06 Hoechst Ag Verfahren und vorrichtung zum aufwickeln einer folienbahn

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6189825B1 (en) 1998-04-30 2001-02-20 Hoechst Trespaphan Gmbh Method for controlling the winding density of film rolls

Also Published As

Publication number Publication date
JPH02305747A (ja) 1990-12-19
EP0393519A2 (de) 1990-10-24
DE3913131C2 (enrdf_load_stackoverflow) 1991-10-17
DE3913131A1 (de) 1990-10-25
EP0393519A3 (de) 1991-07-31
US5039023A (en) 1991-08-13
DE59005706D1 (de) 1994-06-23

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