EP1210220B1 - Procede permettant de guider une bande - Google Patents

Procede permettant de guider une bande Download PDF

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Publication number
EP1210220B1
EP1210220B1 EP00949476A EP00949476A EP1210220B1 EP 1210220 B1 EP1210220 B1 EP 1210220B1 EP 00949476 A EP00949476 A EP 00949476A EP 00949476 A EP00949476 A EP 00949476A EP 1210220 B1 EP1210220 B1 EP 1210220B1
Authority
EP
European Patent Office
Prior art keywords
material web
web
spreader roller
spreader
roller
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
EP00949476A
Other languages
German (de)
English (en)
Other versions
EP1210220A1 (fr
Inventor
Dieter Mathieu
Wolfgang Rasp
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.)
Treofan Germany GmbH and Co KG
Original Assignee
Treofan Germany GmbH and Co KG
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 Treofan Germany GmbH and Co KG filed Critical Treofan Germany GmbH and Co KG
Publication of EP1210220A1 publication Critical patent/EP1210220A1/fr
Application granted granted Critical
Publication of EP1210220B1 publication Critical patent/EP1210220B1/fr
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
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
    • B65H23/025—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers
    • 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
    • B65H2301/512—Changing form of handled material
    • B65H2301/5124—Stretching; Tentering
    • B65H2301/51242—Stretching transversely; Tentering
    • B65H2301/512422—Stretching transversely; Tentering involving roller pair acting on edge of web
    • 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
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/131—Details of longitudinal profile shape
    • B65H2404/1314—Details of longitudinal profile shape convex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/21—Angle
    • B65H2511/216—Orientation, e.g. with respect to direction of movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/31—Tensile forces

Definitions

  • the present invention relates to a method for guiding a material web (1) which is guided and transported between rotating rollers. becomes.
  • the US 22 89 196 describes the so-called banana roll. These cylindrical roller is at least on the surface of a rubber-elastic Material and specially shaped. The roller is over her entire Length bent and pressed against the running web. The shape the roller causes when pressing the roller in running web a Breitiens in the transverse direction. The thereby generated power transmission of lateral forces and the achievable transverse movement but is extremely low and therefore useless for many applications.
  • EP 0 009 294 a method for drawing a web of material is disclosed described from a crosslinked material. After the process, the material web seized and guided by the side of the sling, which is the desired Wide reach. The clips are controlled so that the web is stretched to a predetermined width. In case of deviations from the given width, the angles of the clips are adjusted.
  • the present invention is based on the object, a method and a device for spreading a sheet-like material web (1), the be guided over rollers and transported to provide.
  • the procedure should ensure that the material web (1) without wrinkles and free from distortion can be guided and transported in the longitudinal and transverse directions.
  • the method can be adapted i.e. the method should at different speeds of the web (1), as well as successfully used for different materials become.
  • the device should be low maintenance and less susceptible to repair be.
  • the longitudinal direction in the sense of the present invention is the direction in which the material web (1) is running; this direction is also called machine direction designated.
  • the transverse direction is the one in the sense of the present invention Direction that is at an angle of 90 °, i. transverse to the machine direction runs.
  • the method according to the invention eliminates the disadvantages caused by the in Longitudinally introduced tensile stress arise.
  • the procedure is for different sheet-like material webs suitable and can be advantageous everywhere be used, where there are wrinkles and / or distortions in the longitudinal direction of the material web when passing over and between rotating Rolling comes.
  • the method has been particularly suitable for films made of plastics, especially made of thermoplastic materials, proven. Slides off Thermoplastic plastics are, for example, films of polyester and Polyolefins, such as polyethylenes, polypropylenes, cycloolefins, polycarbonate, Polyamides etc. Such films can be constructed as single-layered or multilayered be.
  • the process can also be used for webs of other materials be applied, such as fabric, paper or metal webs. Likewise, the process is beneficial when it comes to the production of laminates goes or while guiding the laminate itself. Also for the laminates are different materials possible. The method is especially for webs with a thickness of 0.5 to 500 ⁇ m, preferably 2 to 200 ⁇ m, suitable.
  • the web speed v F of the web is determined by the desired rate of production or processing. Usual web speeds are depending on the type of material between 1 to 2500 m / min, preferably 5 to 1000 m / min. For films of thermoplastic polymers speeds of 100 to 1000 m / min are common.
  • the tension in the longitudinal direction to be introduced into the material web depends on the one hand on the material properties (eg type of material) and their thickness or the purpose of the following devices (eg thickness measurement, surface treatment, Wikkelstation), which are integrated or connected in the roller assembly, and on the other hang the Web speed v F itself and the applied tension in the running direction from each other.
  • the process according to the invention is particularly advantageous for high-speed productions or processing.
  • the material web (1) is inventively guided in its edge region over one or more spreader rollers (2).
  • the edge region of a material web (1) is generally narrow in relation to the total width of the web. The exact width of such an edge region will depend on the nature of the material and the overall width of the web. In general, an edge region is understood to be the outer regions of the web, which together can make up to 30% of the total width. In general, each edge region is in each case 1 to 10% of the total width of the material web. It goes without saying that each endless web of material has two edges which run parallel to the running direction. The following information about "the edge area" of course apply in the same way for the opposite edge.
  • the material web (1) is guided in the edge region via a spreader roll (2).
  • This spreader roller (2) is dimensioned so that its diameter is generally greater than its width b g , so that the term “role” more aptly characterizes the element than the term “roller”.
  • appropriately sized rollers can fulfill an equivalent purpose.
  • the person skilled in the art will select the size of the element as a function of the material web (1), the web speed and the width of the edge region.
  • the spreader roller (2) has a width b g of 1 to 500 mm, preferably 1 to 150 mm, in particular 1 to 50 mm.
  • the diameter of the Breithaltrolle (2) is generally 1 to 10% of the web width (1).
  • the material web width depends on the type of material and the given machine dimensions and can therefore vary within a wide range.
  • films made of thermoplastics are conventional web widths in the production of the film before cross-stretching between 0.2 to 2 m, preferably 0.5 to 1 m, but after the transverse stretching at 0.5 to 30 m, preferably 1 to 20 m. Accordingly, the absolute values of the roll diameter can vary within wide limits.
  • the spreader roller (2) can in principle be made of any material or composite material be manufactured that meets the requirements.
  • the surface should be designed so that a positive connection between the material web (1) and the roller surface (5) is conveyed. In a special Embodiment, it is necessary to apply the surface to electrical Zero potential.
  • the roll is bevelled or rounded at the edges so that the lateral surface b M narrow, so that the contact surface (3) between the material web (1) and the roller surface (5) ideally to a point or on a line is reduced.
  • the lateral surface b M for bevelled or rounded embodiments will have a width of 0 to 400 mm, preferably 1 to 200 mm.
  • Such chamfered or rounded rollers are particularly advantageous since the relative movement between lateral surface b M and material web (1) is always lower with decreasing lateral surface.
  • beveled or rounded rollers provide some protection against damage to the web (1).
  • the spreader roller (2) does not necessarily need an independent drive. It can be driven via the moving material web (1) and then has a peripheral speed v R which corresponds to the web speed v F of the material web (1) taking into account the angle of attack ⁇ .
  • the spreader roller (2) is provided with a drive, by means of which the peripheral speed of the roller V R can be controlled or regulated. Such driven Breithalterollen are preferred.
  • the drive makes it possible to control or regulate the peripheral speed of the roller and also to control the transversely generated tension.
  • the peripheral speed v R is adjusted so that the peripheral speed v R is at least as great, preferably greater than the web speed v F of the material web (1).
  • the lead of the peripheral speed v R of the roller is generally adjusted so that there is no relative movement between the roller surface (5) and the material web (1).
  • the spreader roller (2) has a electrically conductive surface, which switched to a zero electrical potential is.
  • This surface allows a particularly advantageous embodiment the inventive method in which a non-positive Connection between the contact surface of the spreader roller (2) and the Material web (1) by an electrostatic charge of the material web (1) is achieved. This embodiment of the method will be detailed below explained.
  • the spreader rollers (2) are positioned in the two edge regions of the material web (1).
  • the positioning of the spreader rollers (2) on the moving material web (1) is chosen from a mechanical engineering and ergonomic point of view.
  • Powered Breithalterollen (2) are driven so that they rotate in the running direction of the web (1).
  • an angle of attack ⁇ is set (see Fig. 7). This angle must be> 0 ° and ⁇ 90 °. In general, one will set an angle of attack in the range of 2 to 50 °, preferably 5 to 30 °.
  • the roller speed v R is controlled or regulated.
  • the role must be as far as the Material web (1) are brought, that the roller surface (5) in the web (1) dips. This positioning is below also as immersion depth h (see Fig. 6). About the immersion depths of the spreader roller (2) in the moving web (1) is determined how far the web (1) wraps around the spreader roll (2). The higher the wrap angle ⁇ the more contact surface (3) arises between the roller surface (5) and the material web (1).
  • the non-positive winding of the role by an electrostatic charge the material web (1) supported in a further, particularly advantageous embodiment of the invention.
  • a spray electrode (4) attached (see Fig. 6 and 7).
  • this spray electrode (4) is in a small area, an electric Charge applied to the web (1). Does the material web loaded in this way run? (1) then via an electrically conductive and at electrical zero potential switched Breithalterolle (2), the web (1) of the Surface of the spreader roller (5) tightened. This leads to a special good, non-positive connection between the material web (1) and the Contact surface (3), possibly also to a larger wrap angle ⁇ .
  • the invention provides a simple way of tension in the transverse direction to bring in a running material web. This procedure is special advantageous because it offers different possibilities, this tension to control in the transverse direction.
  • the tension can be controlled by controlling the Roll diameter, by the angle of attack ⁇ , by the immersion depth h, by the configuration of the roller surface, by the peripheral speed, by the positioning of the spreader roll to the web through which static charge can be controlled. This is a very fine dosage of acting in the transverse direction forces on various specifications possible.
  • the inventive method is extremely flexible and for a variety of Materials and production or processing methods advantageously used. It allows webs to be wrinkle free between rotating rollers lead and build a controlled tension in the transverse direction, so that dislocations or other disturbances caused by tensions in Longitudinal, can be safely avoided.

Landscapes

  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Hydraulic Turbines (AREA)
  • Transplanting Machines (AREA)
  • Replacement Of Web Rolls (AREA)

Claims (12)

  1. Procédé en vue d'élargir lors du guidage d'une bande de matériau (1) en forme de surface, dans lequel la bande de matériau (1) passe dans un agencement de cylindres en rotation avec une vitesse de bande VF, la bande de matériau (1) étant guidée dans sa zone de bordure par l'intermédiaire d'un rouleau d'élargissement (2) qui génère une tension en traction dans la direction transversale, c'est-à-dire transversalement à la direction d'avance de la bande de matériau (1), caractérisé en ce que cette tension est commandée dans la direction transversale par réglage de la vitesse périphérique vR du rouleau d'élargissement (2) et par commande de l'angle d'incidence α et de l'angle d'enroulement β et la vitesse périphérique vR étant supérieure à la vitesse de la bande vF.
  2. Procédé selon la revendication 1, caractérisé en ce que la bande de matériau (1) est une bande de matériau en un matériau plastique thermoplastique, de préférence, en polyester, en polyéthylène, en polycarbonate, en polypropylène ou en un polymère de cyclo-oléfine.
  3. Procédé selon la revendication 1 et/ou 2, caractérisé en ce que la bande de matériau (1) possède une épaisseur comprise entre 0,5 et 500 µm, de préférence 2 et 200 µm.
  4. Procédé selon l'une quelconque ou plusieurs des revendications 1 à 3, caractérisé en ce que la vitesse vF de la bande de matériau (1) est de 1 à 2000 m/min.
  5. Procédé selon l'une quelconque ou plusieurs des revendications 1 à 3, caractérisé en ce que chaque zone de bordure représente à chaque fois 1 à 10 % de la largeur totale de la bande de matériau (1).
  6. Procédé selon l'une quelconque ou plusieurs des revendications 1 à 5, caractérisé en ce que le rouleau d'élargissement (2) possède un diamètre dans la région comprise entre 1 et 500 mm et le diamètre est supérieur à la largeur du rouleau d'élargissement (2).
  7. Procédé selon l'une quelconque ou plusieurs des revendications 1 à 6, caractérisé en ce que la surface du rouleau d'élargissement (5) se compose d'une surface métallique conductrice et qu'un potentiel zéro électrique est interposé.
  8. Procédé selon l'une quelconque ou plusieurs des revendications 1 à 7, caractérisé en ce que le rouleau d'élargissement (2) présente des arêtes biseautées ou arrondies.
  9. Procédé selon l'une quelconque ou plusieurs des revendications 1 à 8, caractérisé en ce que le rouleau d'élargissement (2) est relié à un entraínement qui permet un réglage de la vitesse périphérique vR du rouleau d'élargissement (2).
  10. Procédé selon l'une quelconque ou plusieurs des revendications 1 à 9, caractérisé en ce qu'au moins deux rouleaux d'élargissement (2) sont positionnés dans les deux zones de bordure opposées de la bande de matériau (1) et forment un angle par rapport à la bordure de la bande de matériau (1) supérieur à 0° et inférieur à 90°, de préférence compris entre 2 et 50°.
  11. Procédé selon l'une quelconque ou plusieurs des revendications 1 à 10, caractérisé en ce que le rouleau d'élargissement (2) est introduit dans la bande de matériau (1) de sorte que la bande de matériau (1) enroule le rouleau d'élargissement (2) au moins partiellement.
  12. Procédé selon l'une quelconque ou plusieurs des revendications 1 à 11, caractérisé en ce que dans la zone du point d'impact sur le rouleau d'élargissement (2), une électrode d'émission (4) est disposée de sorte que la bande de matériau (1) soit sollicitée par une charge et que le rouleau d'élargissement (2) présente une surface conductrice (5).
EP00949476A 1999-08-16 2000-08-09 Procede permettant de guider une bande Expired - Lifetime EP1210220B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19938165A DE19938165A1 (de) 1999-08-16 1999-08-16 Verfahren und Vorrichtung zum Führen einer Materialbahn
DE19938165 1999-08-16
PCT/EP2000/007721 WO2001012418A1 (fr) 1999-08-16 2000-08-09 Procede et dispositif permettant de guider une bande

Publications (2)

Publication Number Publication Date
EP1210220A1 EP1210220A1 (fr) 2002-06-05
EP1210220B1 true EP1210220B1 (fr) 2005-04-13

Family

ID=7918127

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00949476A Expired - Lifetime EP1210220B1 (fr) 1999-08-16 2000-08-09 Procede permettant de guider une bande

Country Status (8)

Country Link
US (1) US6704978B1 (fr)
EP (1) EP1210220B1 (fr)
AT (1) ATE293036T1 (fr)
AU (1) AU771910B2 (fr)
DE (2) DE19938165A1 (fr)
MX (1) MXPA02001673A (fr)
WO (1) WO2001012418A1 (fr)
ZA (1) ZA200202138B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100907237B1 (ko) * 2008-09-12 2009-07-10 차성희 측방펼침장치가 설치된 자동 연단기
US9038879B2 (en) * 2009-10-13 2015-05-26 3M Innovative Properties Company Corrugated edge nip
DE102010024364A1 (de) * 2010-06-18 2011-12-22 Texmag Gmbh Vertriebsgesellschaft Vorrichtung zum Schneiden einer laufenden Warenbahn
KR101000505B1 (ko) 2010-09-07 2010-12-14 (주)세명정밀 연단기의 커팅 수단 승강 장치
CN108439012A (zh) * 2018-03-06 2018-08-24 林华 膜料牵引平展装置
CN110950140B (zh) * 2019-11-27 2022-04-08 北京木真了时装有限公司 一种电眼对边机的增压卷布机构

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Publication number Priority date Publication date Assignee Title
US2096087A (en) * 1936-02-03 1937-10-19 Curtis & Marble Machine Compan Cloth spreading and guiding device
US3156396A (en) * 1962-10-08 1964-11-10 Ind Ovens Inc Web guiding means
JPS4944155B1 (fr) * 1967-07-26 1974-11-26
DE1803860A1 (de) * 1968-10-18 1970-05-27 Kalle Ag Verfahren und Vorrichtung zum Breitspannen von Materialbahnen
US3637121A (en) * 1969-06-26 1972-01-25 Alexeff Snyder Ets Web guiding and spreading apparatus
US3650000A (en) * 1970-04-06 1972-03-21 Alexeff Snyder Ets Web guiding and expanding apparatus
ES391123A1 (es) * 1970-05-19 1974-05-01 Hoechst Ag Procedimiento y aparato para el estiramiento de laminas de material sintetico termoplastico.
US3673647A (en) * 1971-01-07 1972-07-04 Mount Hope Machinery Ltd Sheet guiding and opening apparatus
US3838481A (en) * 1971-07-21 1974-10-01 M Kuroda Apparatus for laterally stretching textile fabric and the like
BE791861R (fr) * 1971-11-24 1973-05-24 Hoechst Ag Procede et dispositif d'etirage de feuilles en matiere
US4140574A (en) * 1978-03-24 1979-02-20 Beloit Corporation Web spreader and guide
CA1140312A (fr) * 1978-09-23 1983-02-01 Johann J. Jansen Methode et dispositif pour tendre des tissus reticules
JPS5658831A (en) * 1979-10-19 1981-05-22 Polymer Processing Res Inst Biaxial stretching apparatus of tubular film
JPS57160614A (en) * 1981-03-30 1982-10-04 Kataoka Kikai Seisakusho:Kk Tentering apparatus of running sheet
US4726501A (en) * 1985-12-12 1988-02-23 Tex-Nology Systems, Inc. Edge steerage apparatus
CA2125807A1 (fr) * 1994-03-14 1995-09-15 Edward Heerman Ruscher Appareil d'etirage d'un materiau elastomerique en sens travers et methode connexe
TW384327B (en) * 1996-08-26 2000-03-11 Nippon Petrochemicals Co Ltd Web expansion apparatus

Also Published As

Publication number Publication date
ATE293036T1 (de) 2005-04-15
ZA200202138B (en) 2002-12-24
AU6281400A (en) 2001-03-13
MXPA02001673A (es) 2002-08-06
US6704978B1 (en) 2004-03-16
EP1210220A1 (fr) 2002-06-05
WO2001012418A1 (fr) 2001-02-22
DE50010054D1 (de) 2005-05-19
DE19938165A1 (de) 2001-02-22
AU771910B2 (en) 2004-04-08

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