EP0966395B1 - Wickelkern - Google Patents
Wickelkern Download PDFInfo
- Publication number
- EP0966395B1 EP0966395B1 EP98916882A EP98916882A EP0966395B1 EP 0966395 B1 EP0966395 B1 EP 0966395B1 EP 98916882 A EP98916882 A EP 98916882A EP 98916882 A EP98916882 A EP 98916882A EP 0966395 B1 EP0966395 B1 EP 0966395B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- core
- segments
- axis
- respect
- winding
- 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
Links
Images
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
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/04—Kinds or types
- B65H75/08—Kinds or types of circular or polygonal cross-section
- B65H75/10—Kinds or types of circular or polygonal cross-section without flanges, e.g. cop tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/04—Kinds or types
-
- 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
-
- 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
- B65H2701/377—Adhesive tape
-
- 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
- B65H2701/50—Storage means for webs, tapes, or filamentary material
- B65H2701/53—Adaptations of cores or reels for special purposes
- B65H2701/535—Dimensional aspect, e.g. non-cylindrical cores
Definitions
- the invention relates to a further development of the known cores of cylindrical shape, which serve as a carrier for a roll of self-adhesive coated, sheet-like materials.
- Such winding cores are generally cylindrical, that is to say circular Shape.
- Typical embodiments include single or double-walled plastic cores or also those made of cardboard.
- the inner diameter of tape winding cores are usually attached to the processing equipment containing them Adhesive tape rolls adapted. Typical inner diameters are, for example, 1 Inch, 1.5 inch, 50 mm or 3 inch. Thickness, shape and inner diameter of the winding cores orient u. a. to those present in the manufacture and processing of the individual rolls Conditions.
- the widths of assembled self-adhesive tape rolls are typically in the range of a few mm up to approx. 200 mm. Usually this corresponds to Width of the winding cores used in each case the width of the adhesive tape wound on them.
- Non-cylindrical winding core shapes are used for special self-adhesive tapes.
- No. 5,269,421 ("Package for PSA tape has thin two-ply core with length of PS tape wound around it in layers "), for example a flat, flat two-layer rectangular core around which an adhesive tape is wrapped.
- An advantage of the on right-angled core of wrapped tape consists in its space-saving (flat) clothing form.
- Cylindrical winding cores offer due to their round shape compared to non-round geometries numerous advantages for the winding and slitting process during processing the adhesive tape nut rolls (jumbos) to be separated into small rolls. In particular can be easily constant over the entire roll circumference during roll production Adjust winding forces. Corresponding advantages also apply to processing the small rolls.
- a fish eye-free winding can only be achieved with a correspondingly high winding tension or a comparatively high contact pressure in small roll production.
- the aforementioned measures consistently increase the risk of subsequently telescoping adhesive tape rolls. This applies in particular to adhesive tape rolls with long assembly lengths and at the same time a small roll width.
- the object of the invention was to provide a core that the above Does not have disadvantages of the prior art, which is therefore particularly in the Is able to wind largely fish-eye-free while reducing the tendency to telescope.
- edges at which the segments meet are preferably pointed.
- the edges have a radius of curvature of less than 3 mm, preferably of less than 1 mm, very particularly preferably of less than 0.6 mm.
- the surface normals preferably form an angle between 80 ° and 90 ° the axis of the core.
- the segments preferably have a circular section angle greater than or equal to 30 ° on.
- the segments are light have a spherical shape, with the segments preferably having the highest center Have elevation.
- the conventional, suitable materials for the production of cores according to the invention are also materials used for the manufacture of cylindrical cores, such as numerous plastics that are pigmented, colored or with a transparent look are usable.
- Processable plastics are preferably used for Example polystyrene.
- cores made of stone, ceramic, metal or cardboard.
- Suitable adhesive films include those which contain a plastic film carrier which is equipped on one or both sides with a pressure-sensitive adhesive.
- Suitable plastic films include those based on polyolefins, especially made of polyethylene and polypropylene, polyesters, polyamides, polystyrene, to name just a few. Films can be used unstretched or stretched (monoaxial or biaxial). Film carrier thicknesses are preferably between 12 ⁇ m and 100 ⁇ m, preferably between 20 ⁇ m and 60 ⁇ m.
- Suitable PSAs include, inter alia, those based on natural rubber / resin mixtures, synthetic rubber / resin mixtures, acrylate copolymers and polyolefins. The materials listed represent only exemplary possibilities. Of course, the inventive concept also includes other materials not mentioned here.
- the cores according to the invention show that of the conventional Cylindrical shape deviate, excellent properties.
- the Cores are obtained 'roll' non-round adhesive tape, which in the further description better known as tape wrap forms.
- tape wrap forms enable a high fisheye freedom while reducing the tendency to telescope.
- cores or adhesive tape winding forms according to the invention have further advantages. Upright cores and adhesive tape winding molds offer a more stable stand in the production and processing area than rolls. Furthermore, such adhesive tape winding forms have an appealing design that stands out from the previously known rolls.
- Adhesive tape rolls measuring 33 m x 19 mm (the information corresponds to the length times the width of the adhesive tape rolls) were determined by a defined winding tension and pressed simultaneously with a rotating rubber roller. The goal was one to get transparent roll, on the one hand due to too high winding tension not telescopic after winding and on the other hand without air pockets in the form of small vesicles, the so-called fish eyes.
- a 19 mm wide hexagonal core which laterally presents itself as a regular hexagon, with rounded edges (corners), as well as a curve body similar to 19 mm in width, as shown in FIG. 1, consisting of three uniform, symmetrically arranged Circular segments, processed into appropriate adhesive tape winding forms.
- the hexagon core had an inner diameter of 26 mm. Its outer diameter was 28 mm between parallel outer boundaries and 30 mm between opposite edges. The edges showed a radius of curvature of 3 mm.
- Curve bodies of the same thickness have a constant contour width.
- the basic form of the the curve body, which is similar in thickness, is represented by an isosceles triangle certainly. Uniform thicknesses are usually used in the construction of Driven to jump straightforward movements in reciprocating respectively derive up and down movements.
- the arched triangle used for the winding tests had the dimensions listed in the following table (see Figure 2): Dimensions of the arched purpose used ⁇ 180 ° R 23 mm ⁇ 7.5 mm
- All of the tape wrap molds were held at a temperature of 48 hours Stored at 40 ° C, then examined for fish eye and telescopic goods.
Landscapes
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Adhesive Tapes (AREA)
- Windings For Motors And Generators (AREA)
Description
Des weiteren sind zum Beispiel häufig auf der Wickelkernaußenseite durch zum Beispiel Bedruckung oder Einlegen eines bedruckten Papieres aufgebrachte Informationen trotz Verwendung von in Einzellagen hochtransparenten Klebebändern, infolge der Ausbildung von Fischaugen, nicht oder nur eingeschränkt sichtbar. Derart trübe Rollen bedingen beim Konsumenten zusätzlich oft den Eindruck einer minderwertigen Qualität.
Die Herstellung von teleskopierfreien Klebebandrollen, welche gleichzeitig keinerlei Fischaugen aufweisen, schließt sich häufig aus oder ist doch ohne entsprechend komplexe technische Vorkehrungen, wie sie zum Beispiel in EP 0 670 277 A ("Method of making pressure sensitive adhesive tape rolls with a transparent to the core appearance") beschrieben werden, in vielen Fällen nur schwer zu realisieren. So ist eine fischaugenfreie Wicklung nur über eine entsprechend hohe Wickelspannung oder einen vergleichsweise hohen Anpreßdruck bei der Kleinrollenherstellung zu erreichen. Vorgenannte Maßnahmen erhöhen aber durchweg die Gefahr nachträglich teleskopierender Klebebandrollen. Dies gilt insbesondere für Klebebandrollen mit hohen Konfektionierlängen und gleichzeitig geringer Rollenbreite.
- sich tonnenförmig ausgeformte Wickelkerne und solche, die mittig eine leitche Erhöhung tragen, nicht auf einfache Weise durch Vereinzelung von Stangenware erhalten lassen.
- geschlitzte Kerne durch das Einbringen der Schlitze eine geringere mechanische Stabilität aufweisen.
- bei Verwendung von tonnenförmig ausgeformten Wickelkernen oder solchen mit mittiger Erhöhung, Klebeband aus kernnaher Wicklung, durch die nicht zylindrische Kernoberfläche, merklich verformt ist, welches nicht nur ein unansehnliches Äußeres des abgewickelten Klebebandes bedingen kann, sondern ebenfalls eine Reduzierung der technischen Eignung entsprechenden Materials hervorrufen kann.
Die aufgeführten Materialien stellen dabei nur beispielhafte Möglichkeiten dar. Vom Erfindungsgedanken umfaßt sind selbstverständlich auch andere, hier nicht näher erwähnte Materialien.
Des weiteren zeigen derartige Klebebandwickelformen ein ansprechendes Design, das sich wohltuend von den bisher bekannten Rollen abhebt.
- Die das Teleskopieren der Klebebandrollen verursachenden Kräfte sind sehr günstig verteilt.
- Ein entsprechend positiver Einfluß der entsprechend der verwendeten Kernform sich ausbildenden pulsierenden Wickelspannungen/Anpreßdrucke bei der Herstellung der Klebebandwickelformen.
- Bahngeschwindigkeit = 20 m/min
- Wickelspannung = 1,1 N/cm
- Andruckkraft der Andruckrollen = 1,0 ± 0,5 N/cm
Der Sechskantkern wies einen Innendurchmesser von 26 mm auf. Sein Außendurchmesser betrug zwischen parallelen Außenbegrenzungen 28 mm sowie zwischen gegenüberliegenden Kanten 30 mm. Die Kanten zeigten einen Krümmungsradius von 3 mm.
Abmaße des eingesetzten gleichdickähnlichen Kurvenkörpers | |
α | 120° |
R | 26mm |
ϕ | 7 mm |
Ergebnisse der Versuchsreihe | ||
Kernform | fischaugenhaltige Ware [%] | teleskopierte Ware [%] |
rund | 12 | 18 |
Sechskant | 100 | 30 |
gleichdickähnlicher Kurvenkörper | 0 | 0 |
- Bahngeschwindigkeit = 20 m/min
- Wickelspannung = 1,1 N/cm
- Andruckkraft der Andruckrollen = 1,0 ± 0,5 N/cm
Die Grundform des Bogenzweiecks ist mit α = 180° festgelegt. Bei Rotation um den Mittelpunkt M entsteht ein Kreis mit dem Bogenradius r und eine sogenannte Hubstrecke s.
Das für die Wickelversuche eingesetzte Bogenzweieck wies die in der folgenden Tabelle aufgeführten Abmaße auf (siehe Figur 2):
Abmaße des eingesetzten Bogenzweiecks | |
α | 180° |
R | 23 mm |
ϕ | 7,5 mm |
Ergebnisse der zweiten Versuchsreihe | |||
Kernform | fischaugenhaltige Ware [%] | teleskopierte Ware [%] | Andruck während des Wickelns |
rund | 10 | 20 | mit |
gleichdickähnlicher Kurvenkörper | 0 | 0 | mit |
Bogenzweieck | 0 | 0 | mit |
Bogenzweieck | 0 | 0 | ohne |
Claims (10)
- Kern zur Wicklung selbstklebend beschichteter, bahnförmiger Materialien, dadurch gekennzeichnet, daß
die äußere Kontur des Kerns gebildet ist aus wenigstens einem im wesentlichen runden, in sich geschlossenen Segment, dessen Enden in einer Kante zusammenlaufen, wobeia) das runde Segment konvex zur Achse des Kerns ausgeformt ist,b) die Flächennormalen des runden Segmentes im wesentlichen orthogonal zur Achse des Kerns ausgerichtet sind,c) die Kante im wesentlichen parallel zur Achse des Kerns ausgerichtet ist - Kern nach Anspruch 1, dadurch gekennzeichnet, daß
die äußere Kontur des Kerns von zumindest zwei im wesentlichen kreisabschnittsförmigen Segmenten gebildet ist, wobeia) die Segmente konvex zur Achse des Kerns angeordnet sind,b) die Flächennormalen der Segmente orthogonal zur Achse des Kerns ausgerichtet sind,c) die Kanten, an denen die Segmente zusammentreffen, parallel zur Achse des Kerns ausgerichtet sind. - Kern nach Anspruch 2, dadurch gekennzeichnet, daß
die äußere Kontur des Kerns von zwei bis sieben kreisabschnittsförmigen Segmenten gleicher Form gebildet ist, die symmetrisch um die Achse des Kerns angeordnet sind. - Kern nach den Ansprüchen 2 oder 3, dadurch gekennzeichnet, daß
die äußere Kontur des Kerns von drei kreisabschnittsförmigen Segmenten gleicher Form gebildet ist, die symmetrisch um die Achse des Kerns angeordnet sind. - Kern nach zumindest einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß
die Kanten, an denen die Segmente zusammentreffen, spitz ausgeformt sind. - Kern nach zumindest einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß
die Kanten, an denen die Segmente zusammentreffen, einen Krümmungsradius kleiner 3 mm, bevorzugt kleiner 1 mm, ganz besonders bevorzugt kleiner 0,6 mm, aufweisen. - Kern nach zumindest einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß
die Flächennormalen einen Winkel zwischen 80° und 90° mit der Achse des Kerns einschließen. - Kern nach zumindest einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, daß
die Segmente einen Kreisabschnittswinkel größer oder gleich 30° aufweisen. - Kern nach zumindest einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß
die Segmente eine leicht sphärische Form aufweisen. - Kern nach Anspruch 9, dadurch gekennzeichnet, daß
die Segmente mittig die höchste Erhebung haben.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19710331 | 1997-03-13 | ||
DE19710331A DE19710331C2 (de) | 1997-03-13 | 1997-03-13 | Wickelkern |
PCT/EP1998/001209 WO1998040301A1 (de) | 1997-03-13 | 1998-03-04 | Wickelkern |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0966395A1 EP0966395A1 (de) | 1999-12-29 |
EP0966395B1 true EP0966395B1 (de) | 2003-06-04 |
Family
ID=7823201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98916882A Expired - Lifetime EP0966395B1 (de) | 1997-03-13 | 1998-03-04 | Wickelkern |
Country Status (6)
Country | Link |
---|---|
US (1) | US6390411B1 (de) |
EP (1) | EP0966395B1 (de) |
AT (1) | ATE242169T1 (de) |
DE (2) | DE19710331C2 (de) |
ES (1) | ES2200336T3 (de) |
WO (1) | WO1998040301A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19823402C1 (de) * | 1998-05-26 | 2000-02-17 | Signode Bernpak Gmbh | Materialwickel, insbesondere Umreifungsmittelwickel für Material zum Umreifen von Packstücken, sowie Verfahren zu seiner Erzeugung |
JP2007052831A (ja) * | 2005-08-16 | 2007-03-01 | Fujifilm Holdings Corp | リール及び記録テープカートリッジ |
GB0613424D0 (en) * | 2006-07-06 | 2006-08-16 | Underwood Christopher J | Fishing rod |
WO2008021897A2 (en) * | 2006-08-08 | 2008-02-21 | Alcoa Inc. | Sheet product package |
DE102007018921A1 (de) * | 2007-04-19 | 2008-10-30 | Polynt Gmbh | Verfahren zum Bevorraten von flächigen, bahnförmigen Halbzeugen sowie Vorratshaspel für flächiges, bahnförmiges Halbzeug |
US9132988B2 (en) * | 2012-10-26 | 2015-09-15 | Lincoln Global, Inc. | System for maintaining the orientation of a coil |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US866613A (en) * | 1907-01-26 | 1907-09-24 | William A Arnold | Reel. |
US1577326A (en) * | 1925-04-14 | 1926-03-16 | Elmer G Leon | Adding-machine spool |
US2772774A (en) * | 1953-03-19 | 1956-12-04 | Minnesota Mining & Mfg | Tape roll and core |
DE6809517U (de) * | 1968-12-02 | 1969-06-26 | Etiketten Fabrik Gebr Seuster | Traegerhuelse fuer eine etikettenrolle |
US4909388A (en) * | 1983-05-24 | 1990-03-20 | Kouzou Watanabe | Compressed roll paper, method of and apparatus for producing same |
JPS6366076A (ja) * | 1986-09-03 | 1988-03-24 | Tokushichi Yamazaki | ロ−ル状にする紙の巻取軸 |
CA2030412A1 (en) * | 1989-11-22 | 1991-05-23 | Harold Schonhorn | Collapsible core adhesive rolls |
JPH0459558A (ja) * | 1990-06-27 | 1992-02-26 | Sakae Urushizaki | ロール状接着テープ |
US5269421A (en) * | 1992-10-19 | 1993-12-14 | Shuford Mills, Inc. | Package of pressure sensitive adhesive tape |
US5255865A (en) * | 1992-12-08 | 1993-10-26 | The Procter & Gamble Company | Cores providing reduced spindle clearance for core wound paper products |
CA2141924C (en) * | 1994-03-02 | 2003-08-19 | Michael J. Sinn | Method of making pressure sensitive adhesive tape rolls with a transparent to the core appearance |
US6077577A (en) * | 1998-01-05 | 2000-06-20 | Anchor Continental, Inc. | Compact pressure-sensitive tape core |
-
1997
- 1997-03-13 DE DE19710331A patent/DE19710331C2/de not_active Expired - Fee Related
-
1998
- 1998-03-04 AT AT98916882T patent/ATE242169T1/de not_active IP Right Cessation
- 1998-03-04 US US09/380,384 patent/US6390411B1/en not_active Expired - Fee Related
- 1998-03-04 ES ES98916882T patent/ES2200336T3/es not_active Expired - Lifetime
- 1998-03-04 EP EP98916882A patent/EP0966395B1/de not_active Expired - Lifetime
- 1998-03-04 WO PCT/EP1998/001209 patent/WO1998040301A1/de active IP Right Grant
- 1998-03-04 DE DE59808636T patent/DE59808636D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO1998040301A1 (de) | 1998-09-17 |
EP0966395A1 (de) | 1999-12-29 |
DE59808636D1 (de) | 2003-07-10 |
DE19710331A1 (de) | 1998-09-17 |
ES2200336T3 (es) | 2004-03-01 |
US6390411B1 (en) | 2002-05-21 |
ATE242169T1 (de) | 2003-06-15 |
DE19710331C2 (de) | 2001-10-04 |
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