EP0300238A1 - Verfahren und Vorrichtung zum Aufspulen elastisch dehnbarer, dünner Bänder - Google Patents

Verfahren und Vorrichtung zum Aufspulen elastisch dehnbarer, dünner Bänder Download PDF

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Publication number
EP0300238A1
EP0300238A1 EP88110335A EP88110335A EP0300238A1 EP 0300238 A1 EP0300238 A1 EP 0300238A1 EP 88110335 A EP88110335 A EP 88110335A EP 88110335 A EP88110335 A EP 88110335A EP 0300238 A1 EP0300238 A1 EP 0300238A1
Authority
EP
European Patent Office
Prior art keywords
winding
winding roller
wound
spool
film strip
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Withdrawn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
EP88110335A
Other languages
German (de)
English (en)
French (fr)
Inventor
Günther Dr. phil.nat. Klotz
Heinz Eberhardt
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.)
Arkema GmbH
Original Assignee
Deutsche Atochem Werke 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 Deutsche Atochem Werke GmbH filed Critical Deutsche Atochem Werke GmbH
Publication of EP0300238A1 publication Critical patent/EP0300238A1/de
Withdrawn legal-status Critical Current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
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/40—Arrangements for rotating packages
    • B65H54/42—Arrangements for rotating packages in which the package, core, or former is rotated by frictional contact of its periphery with a driving surface
    • 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
    • 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
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/195—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations
    • B65H23/1955—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations and controlling web tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/32—Traversing devices; Package-shaping arrangements with thread guides reciprocating or oscillating with variable stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/40—Arrangements for rotating packages
    • B65H54/46—Package drive drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/175—Plastic
    • B65H2701/1752—Polymer film
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • B65H2701/319—Elastic threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/37—Tapes

Definitions

  • the invention relates to a method for winding elastically stretchable, thin film tapes, for example made of polyurethane, in which tape material is continuously fed to a rotating spool and wound onto this spool under a certain longitudinal tension.
  • the invention relates to a device for performing this method, which has a guide for the incoming strip material or foil strip, a rotatably mounted, drivable winding roller and a slide which is adjustable relative to the winding roller and on which the spool to be wound can be freely rotated and exchangeably arranged.
  • Elastic, stretchable film tapes in particular film tapes consisting of polyurethane, are used, for example, as an elastic pad for diapers and, when stretched, are glued to the diapers so that these tapes ripple the diapers in the edge area when they are relaxed.
  • Such foil tapes are extremely thin and flexible. They are about 25 ⁇ m thick and tend to wrinkle. It is therefore difficult to wind up such foil tapes on spools.
  • the invention has for its object to be able to mechanically and economically wind thin and elastically stretchable film tape in great lengths of at least 25,000 meters into compact spools which are stable in the area of their ends and can accordingly also be unwound again.
  • the invention makes it possible to wind up thin and inherently less dimensionally stable film tapes, even in greater lengths, to form a compact roll which can also be unwound or unwound reliably and without problems.
  • This wrap also has sufficient strength in the end areas, without the exact position of the individual winding layers having to be maintained. Rather, it is possible to continuously wind the film strip helically on the spool without having to pay attention to an exact position of the film strip or the individual winding layers.
  • the winding is preferably continuously shortened slightly, so that the front ends are designed like a relatively steep cone or cone, which effectively prevents instabilities. Since the foil tape is wound helically with overlap, the edges of the tape do not lie on one another in the individual winding layers, so that they cannot hook into one another or connect in any other way and there is no risk of mutual "welding".
  • the film strip is wound in a kind of tangled position helically and in an overlapping arrangement on the spool or the winding located thereon without the risk of air pockets.
  • the film strip similar to that known for winding textile threads in textile machines, can be wound helically back and forth on the surface of the winding or the bobbin. Accordingly, the winding process is easier to control.
  • the shortening of the individual successive winding layers can be preprogrammed and thus controlled in a simple manner.
  • Foil tape wraps made according to the invention are stable in both manufacture, handling and unwinding, i.e. there is no risk of the winding collapsing, not even in the area of its ends, although the film strip material is wound onto the spool in a helical manner and not, as previously known, spirally.
  • the film strip material can run in with an axial tension or tensile stress of up to 4% and preferably up to 2%, i.e. with an axial tension, which causes an elongation of 4 or 2%.
  • the film strip material thus lies on the roll under a certain longitudinal tension, which, however, is less than the longitudinal tension or elongation with which the film strip is to be processed later.
  • the invention is particularly suitable for processing elastically stretchable film tape made of polyurethane
  • other films with comparable properties or made of other plastics can also be processed or wound into compact windings of great lengths of 25,000 meters and more.
  • the winding device (1) contains in a frame (2) one above the other a total of three winding stations (3, 4 and 5), which in turn can have several winding devices next to each other, so that a large number of film strips can be wound or wound onto a spool at the same time. Since all winding stations are of the same design and work in the same way, only one of these winding stations (3 to 5) is explained in detail here.
  • Each winding station (3 to 5) has drive rollers (8) which are supported on a crossbar (6) fixed in the frame (2) via pillow block bearings (7) and which are arranged in a rotationally fixed manner on a shaft (9) not shown.
  • a winding roller (10) is rotatably mounted on the crossmember (6) and can be set in rotation by the drive rollers (8).
  • This winding roller (10) is held on pivotably mounted arms (11), which are each pivotably supported on a further pillow block (12) attached to the crossmember (6).
  • a carriage (13) which is displaceable perpendicularly to the crossmember (6) and thus to the drive rollers (8) and the winding roller (10) is provided and is slidably seated on a rail guide (14).
  • a spool (16) can be freely rotated in this carriage (13) between the end stand (15).
  • the carriage (13) can be pressed in the direction of the crossmember (6) and thus towards the winding roller (10), so that the spool mounted in the carriage (13) is pressed against the winding roller (10). Since the winding roller (10) is in turn resiliently mounted, it is then pressed against the rigidly mounted drive rollers (8) which set the winding roller (10) in rotation. The winding roller (10) transmits its rotary movements to the spool pressed against it, so that the spool (16) is then also rotated if the shaft (9) is driven.
  • a guide arm (19) is provided for guiding the film strip (18) to be wound onto the reel (16) and is fastened on an axis (20) which can be moved in an oscillating manner so that the guide arm (19) between the drive rollers (8 ) can be moved back and forth parallel to the axis of rotation of the winding roller (10) in order to wind the film strip (18) helically on the spool (16).
  • the guide arm (19) At the front end or infeed end of the guide arm (19) there is a pair of rollers (21 and 22) which can be rotated about vertical axes and around which the incoming film strip (18) is wound.
  • the rod (23) made of thick wire not only directs the film strip (18) onto the guide roller (24), but also exerts a certain braking effect on the film strip (18), which is so strong that the film strip is tensioned during the winding process elongation of about 1%. A further elongation of 1 to about 3 to 4% is experienced by the film strip (18) as a result of the tension which arises when it is fed to the winding station and during winding.
  • the rotatably mounted winding roller (10) has a rigid roller body (25) and a coating (26) made of elastically resilient soft material such as foam rubber in the angular region or middle region.
  • the surface of the coating (26) is designed to be low-abrasion.
  • the coating (26) hugs the surface of the coil (16) or the coil (27) formed on it due to its soft elastic properties. This prevents that under the on the winding (27) emerging foil tape (18) can form air pockets. Rather, the film strip (18) is allowed to run onto the winding (27) with sufficient pressure in order to push out the air underneath and to prevent any air pockets. Although the film strip (18) is wound helically in continuous layers on the spool (16) or the winding (27), a compact, firm winding is produced in this way.
  • the front ends (28) of the winding (27) are conical, for example at a cone angle of 20 ° to 40 ° and preferably about 30 °, so that the front ends (28) of the winding (27) are compact and the winding is not here can collapse.
  • the width of the film strip is between 6 and 27 mm, preferably at least 12 mm and at most 20 mm.
  • the invention is suitable for very thin tapes of less than 100 ⁇ m, preferably less than 60 ⁇ m and particularly preferably less than 40 ⁇ m.
  • the invention is even applicable to extremely thin tapes less than 30 microns thick, and the art has been found to be extremely advantageous in the art for winding tapes approximately 25 microns thick.
  • These are extremely thin ribbons, and on an industrial scale this is now the lower limit for the thickness of ribbons that can be manufactured on an industrial scale. Even thinner ribbons can also be produced, and the invention can also be applied to them; however, the large-scale production of such tapes still presents certain problems.
  • the lower limit for the thickness of the ribbons is determined solely by the possibility of being able to produce them properly on an industrial scale. As mentioned, today it is around 25 ⁇ m or 20 ⁇ m in large-scale production. Of course, even thinner tapes can be produced on a pilot plant scale and wound according to the invention.
  • the film strips generally consist of thermoplastic elastomers, for example polyurethane, but also polyester amide or polyether ester amide.
  • the film strip (18) has a width of approximately 17 mm.
  • the feed of the guide arm (19) is then, for example, 5 mm per revolution of the winding roller (10) in order to ensure the desired overlap of the foil tape coil on the winding (27). To ensure this, the feed must always be sufficiently smaller than the respective width of the film strip (18).
  • the pressure between the coil (16) or winding (27) and the winding roller (10) must be sufficiently high to exclude air pockets between the individual helical layers of the wound film strip (18).
  • pressure medium such as compressed air with a pressure of 2 to 10 bar, preferably 2.5 to 6 bar, is fed into the pressure cylinder (17).
  • the winding roller (10) expediently has a diameter of approximately 10 to 50 cm, the diameter preferably being less than 40 cm and particularly preferably less than 30 cm. A diameter in the range of approximately 15 to 25 cm has proven to be particularly advantageous.
  • the soft, elastic, conformable surface (26) suitably consists of so-called cellular rubber (closed-cell blown cellular rubber). The thickness of this surface (26) is advantageously in the range from about 5 mm to about 50 mm. The minimum thickness is expediently about 10 mm, while the upper limit is expediently about 40 mm, preferably about 30 mm and particularly preferably about 25 mm. The most preferred range is about 15 to 20 mm thick.
  • very high winding and thus peripheral speeds of the soft, elastic, conformable surface (26) can be achieved, namely up to about 250 m / min.
  • this circumferential speed of the winding roller (10) should expediently be below 200 m / min and advantageously below approximately 150 m / min.
  • the minimum peripheral speed is about 50 m / min, preferably about 100 m / min.
  • the following physical properties have proven to be expedient for the soft-elastic, conformable surface (26): Degree of hardness according to ASTM: RE about 41 to 43, advantageously about 42. Compression hardness according to ASTM: about 20 to 80, preferably about 30 to 70 kPa. Compression set: about 12 to 20, preferably about 15 to 19, particularly preferably about 16 to 18%.
  • wound film strips can be extremely thin, it is expedient that the longitudinal or tensile stress during winding is extremely low. It has proven to be particularly expedient that the winding takes place almost without tension.
  • the local pressure during winding should also be as low as possible, expediently below 5 bar, preferably below 3 bar and particularly preferably below 1 bar. Surprisingly, this extremely low pressure is sufficient to exclude air pockets between the individual helical layers of the wound film strip (18).
  • sleeves are used which advantageously have a diameter of approximately 5 to 30 cm, preferably approximately 10 to 25 cm and particularly preferably approximately 15 to 20 cm.

Landscapes

  • Winding Of Webs (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
EP88110335A 1987-07-18 1988-06-29 Verfahren und Vorrichtung zum Aufspulen elastisch dehnbarer, dünner Bänder Withdrawn EP0300238A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873723838 DE3723838A1 (de) 1987-07-18 1987-07-18 Verfahren und vorrichtung zum aufspulen elastisch dehnbarer, duenner baender
DE3723838 1987-07-18

Publications (1)

Publication Number Publication Date
EP0300238A1 true EP0300238A1 (de) 1989-01-25

Family

ID=6331878

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88110335A Withdrawn EP0300238A1 (de) 1987-07-18 1988-06-29 Verfahren und Vorrichtung zum Aufspulen elastisch dehnbarer, dünner Bänder

Country Status (4)

Country Link
EP (1) EP0300238A1 (enrdf_load_stackoverflow)
JP (1) JPS6434841A (enrdf_load_stackoverflow)
KR (1) KR900001587A (enrdf_load_stackoverflow)
DE (1) DE3723838A1 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19941522B4 (de) * 1998-09-03 2012-06-06 Koester Gmbh & Co. Kg Verschlußtape sowie Wicklung von Bandmaterial und Verfahren zur Herstellung eines Verschlußtapes
CN107098184A (zh) * 2017-06-16 2017-08-29 太仓鸿海精密机械有限公司 一种缠绕收卷装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2264587B2 (de) * 1972-03-24 1976-06-10 Aufwickelvorrichtung fuer baender oder folien
US4568033A (en) * 1983-07-20 1986-02-04 Oconnor Lawrence Winding a package of tape
EP0200234A2 (de) * 1982-05-17 1986-11-05 Maschinenfabrik Rieter Ag Spulendorn-Antrieb

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US868268A (en) * 1907-03-28 1907-10-15 Crompton & Knowles Loom Works Tape-winder for tape-looms.
US2135668A (en) * 1936-05-29 1938-11-08 Oscar I Judelshon Spooling machine
GB889945A (en) * 1958-05-01 1962-02-21 William Liss Method of and apparatus for gathering and winding ribbons from a ribbon loom
US3224698A (en) * 1964-05-28 1965-12-21 Fmc Corp Winding apparatus
DE1901377A1 (de) * 1968-01-18 1970-02-12 Whaley Francis Philip Verfahren und Vorrichtung zum Aufwickeln von Baendern
US4026487A (en) * 1975-12-08 1977-05-31 Kimberly-Clark Corporation Drum unwind system for sheet materials
US4193559A (en) * 1978-04-07 1980-03-18 E. I. Du Pont De Nemours And Company Film web winding assembly
ZA806500B (en) * 1979-10-22 1981-10-28 Kimberly Clark Co Winding method for soft elastomeric ribbon and wound spool resulting therefrom
JPS60142255U (ja) * 1983-08-29 1985-09-20 株式会社　片岡機械製作所 帯状シ−ト裁ち屑の巻取装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2264587B2 (de) * 1972-03-24 1976-06-10 Aufwickelvorrichtung fuer baender oder folien
EP0200234A2 (de) * 1982-05-17 1986-11-05 Maschinenfabrik Rieter Ag Spulendorn-Antrieb
US4568033A (en) * 1983-07-20 1986-02-04 Oconnor Lawrence Winding a package of tape

Also Published As

Publication number Publication date
JPS6434841A (en) 1989-02-06
DE3723838A1 (de) 1989-01-26
KR900001587A (ko) 1990-02-27
DE3723838C2 (enrdf_load_stackoverflow) 1990-07-05

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