US3216638A - Air cushion method and apparatus for supporting moving film sheets - Google Patents

Air cushion method and apparatus for supporting moving film sheets Download PDF

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Publication number
US3216638A
US3216638A US232557A US23255762A US3216638A US 3216638 A US3216638 A US 3216638A US 232557 A US232557 A US 232557A US 23255762 A US23255762 A US 23255762A US 3216638 A US3216638 A US 3216638A
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US
United States
Prior art keywords
housing
web
side walls
air
travel
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
US232557A
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English (en)
Inventor
Donald J Brickle
Boutillier Frank Le
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.)
Millennium Petrochemicals Inc
Original Assignee
National Destillers and Chemical Corp
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 National Destillers and Chemical Corp filed Critical National Destillers and Chemical Corp
Priority to US232557A priority Critical patent/US3216638A/en
Priority to GB40702/63A priority patent/GB1041850A/en
Priority to DE19631449674 priority patent/DE1449674A1/de
Application granted granted Critical
Publication of US3216638A publication Critical patent/US3216638A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/101—Supporting materials without tension, e.g. on or between foraminous belts
    • F26B13/104—Supporting materials without tension, e.g. on or between foraminous belts supported by fluid jets only; Fluid blowing arrangements for flotation dryers, e.g. coanda nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/355—Conveyors for extruded articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • 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
    • B65H23/24—Registering, tensioning, smoothing or guiding webs longitudinally by fluid action, e.g. to retard the running web
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/04—Carriers or supports for textile materials to be treated
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B65H2406/111—Means using fluid made only for exhausting gaseous medium producing fluidised bed for handling material along a curved path, e.g. fluidised turning bar

Definitions

  • the present invention relates to a method and means for supporting a moving web of a sheeted material. More particularly it relates to a stationary support element providing an air cushion adapted to support a web drawn over such element under tension.
  • the invention relates especially to a method and means adapted to handle sheeted materials which have been coated or treated with liquid or other coating materials and require drying or setting time prior to contact with moving or stationary surfaces of any kind.
  • Substantially non-porous sheeted materials including paper, films of thermoplastic materials, and other equivalent compositions, frequently are treated or coated with a variety of substances. Such treatment may include the application of waterproof coatings, printers ink, or other we coating materials. Frequently, it is desirable to coat or treat both surfaces of the sheet or web simultaneously.
  • FIGURE 1 is a schematic showing of a typical application of the invention to a system for coating a web of sheeted material and for drying the coating applied;
  • FIGURE 2 is an isometric View, with parts broken away, of an air cushion unit of the character contemplated by the present invention.
  • the numeral 1 designates a film web, such as of a thermoplastic material derived by extrusion.
  • the numerals 2, 3, 4 and 5 designate a system of rolls representative generally of conventional means for applying a coating material to both sides of the web, simultaneously.
  • the numerals 6 and 6a, 7 and 7a, 8 and 8a, and 9 and 9a designate representative means for applying air to the respective surfaces of the web, whereby to dry or set the coating material on the web and/or remove a solvent therefor.
  • the film travel path may be collapsed or telescoped by means such as indicated by the numerals ll 11 and 12.
  • a collapsed or telescoped system would require that the web be passed over a series of rollers.
  • the web is passed over a series of air cushions provided by the elements 10, 11 and 12.
  • Each of the contemplated elements comprises a housing, respectively designated in FIGURE 1 by the numerals 10a, 11a and 12a connected to a blower 13 as by ducts 10b, 11b and 13b, and a manifold 14. If desired, each housing may be supplied by a separate blower and supply line connection.
  • FIGURE 1 the numerals 16, 15 and 18 respectively designate an enlargement of the ducts 12b, 11b, and 10b.
  • the particular form of the duct work involved is more particularly shown in FIGURE 2, as is the nature of the housings 10a, 11a and 12a.
  • the device as designated in FIGURE 1 by any of the numerals 1t), 11 or 12 consists of a housing portion such as designated, in this drawing, by the numeral 20.
  • This housing is an elongated member having a longitudinal dimension slightly greater than the film web intended to pass over it.
  • the housing has a rim portion 21 and sidewall portions 22 and 23, the sidewalls being connected by endwalls, such as designated by the numeral 24.
  • the endwalls, sidewalls, and rim thus form an enclosed space open at the top and bottom.
  • the side walls are divergent and/or shaped in the manner shown for the housings 10 and 11 of FIG- URE 1, but may be altered to provide a housing Wall conformation as shown in FIGURE 1 for the housing 12 as later set forth.
  • the ducts such as the duct 10b of FIGURE 1, are shaped to match the rectangular opening of the housing rim.
  • the duct 20b is shaped divergently to conform with the rim portion 21, providing a flared connection between the housing 20 and the duct 20b.
  • This flared portion is designated by the numeral 20c, and in FIGURE 1 by the corresponding numeral 18.
  • the object of such expanded or flared con nection between duct and housing is to provide a substantially nonturbulent, smooth flow of air into the housing 20, at low pressure.
  • the equiangular relationship of the sidewall portions 22 and 23 is adjusted to provide a circular distance between their free ends which is slightly more than 180, and centered between the ends. In a housing unit such as 12 of FIGURE 1, this distance would be adjusted to encompass slightly more than As shown in FIGURE 2, the sidewalls 22 and 23 are connected by means of an arcuately formed perforate wall member encompassing a circular angle slightly greater than Also, as shown, preferably it is formed from a sheet of flattened, expanded metal. It may be formed by any perforate, rigid, but deformable sheet material, and some of the advantages, according to the present invention, may be retained. In this respect, the primary consideration is to minimize the pressure drop between the interior and exterior of the housing of low pressure air supplied thereto.
  • a fabric cover 26 Over the perforate metal sheet is applied a fabric cover 26.
  • This cover is formed by a coarse, highly air permeable layer of a sheeted material such as muslin.
  • a sheeted material such as muslin.
  • Other highly air permeable porous materials, whether woven or felted, may also be employed.
  • the preferred materials are those which permit air to pass through the cover in relatively large volume with relatively low pressure drop.
  • a film web is threaded through the system in the manner shown by FIGURE 1.
  • Tension is applied to the Web longitudinally thereof as by conventional nip rolls, disposed beyond the outlet of the dryer elements9 and 9a, and rotated at a rate such as to cause the film travel to be resisted slightly by the rolls 2 and 4, or by other conventional means ahead of these rolls.
  • a typical means disposed ahead of rolls 2 and 4 would be a weighted or spring tensioned dancer roll. Neither the nip rolls nor such dancer rolls are shown, as these expedients are Well known in the art.
  • the blower 13 is started, and the web is moved along the travel path provided.
  • the rate of air flow is adjusted, either by dampers or by the blower speed, to provide a discharge volume sufficient to raise the Web from contact with the covered sections of the housings 10, 11 and 12. This rate and volume will vary depending upon the weight of the web and the tension applied thereto. Adjustment, however, is obtained simply by visual observation.
  • the coating or treating process may be started. Both sides of the web may be processed at the same time, as between the coating step and emergence of the dry webfrom the final dryer no portion of the treated web surfaces will come in contact with fixed or moving support surfaces.
  • the air cushion support supplements the action of the dryer means specifically provided. If desired, the air supplied to the housings 10, 11 and 12 may also be heated.
  • an apparatus for supporting said web out of contact with solid surfaces at a point at which the direction of web travel is changed comprising (a) an elongated housing having a pair of side walls tapering outwardly from the bottom to the top of said housing, the upper surfaces of said side walls extending for distances slightly greater than the width of said web, and end walls connecting said side walls and defining an outwardly flared zone within the housing;
  • an arcuately shaped, substantially rigid perforated wall member encompassing a circular angle slightly greater than 180 and produced from deformable sheet material, the extremities thereof being secured to the side walls of said housing and having a length substantially corresponding to the lengths of the upper surfaces of said side walls, said arcuate member defining a chamber open at its ends and communicating with the larger end of the outwardly flared zone within said housing;

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Robotics (AREA)
  • Advancing Webs (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Replacement Of Web Rolls (AREA)
US232557A 1962-10-23 1962-10-23 Air cushion method and apparatus for supporting moving film sheets Expired - Lifetime US3216638A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US232557A US3216638A (en) 1962-10-23 1962-10-23 Air cushion method and apparatus for supporting moving film sheets
GB40702/63A GB1041850A (en) 1962-10-23 1963-10-15 Method and apparatus for supporting moving webs
DE19631449674 DE1449674A1 (de) 1962-10-23 1963-10-23 Verfahren und Vorrichtung zur Foerderung eines kontinuierlichen Streifens aus Folienmaterial

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US232557A US3216638A (en) 1962-10-23 1962-10-23 Air cushion method and apparatus for supporting moving film sheets

Publications (1)

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US3216638A true US3216638A (en) 1965-11-09

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US232557A Expired - Lifetime US3216638A (en) 1962-10-23 1962-10-23 Air cushion method and apparatus for supporting moving film sheets

Country Status (3)

Country Link
US (1) US3216638A (de)
DE (1) DE1449674A1 (de)
GB (1) GB1041850A (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3531035A (en) * 1968-08-02 1970-09-29 Ibm Path-modifying apparatus for continuously moving web
US3634948A (en) * 1970-08-20 1972-01-18 Tadashi Kobayashi Drying apparatus for papermaking
US3668788A (en) * 1970-08-20 1972-06-13 Tadashi Kobayashi Method and apparatus for drying wavily running strip with hot blasts
US3912186A (en) * 1972-08-12 1975-10-14 Agfa Gevaert Ag Air-cushion winding machine
US4176775A (en) * 1977-03-28 1979-12-04 Beloit Corporation Inhibiting noise in sheet spreaders
US4186496A (en) * 1977-03-15 1980-02-05 Dominion Engineering Works Limited Web drier section
EP0364392A2 (de) * 1988-10-13 1990-04-18 Beloit Corporation Spreizstangenvorrichtung
WO1991006890A2 (en) * 1989-11-02 1991-05-16 Eastman Kodak Company Apparatus for spooling strips of web material
US5125630A (en) * 1989-11-02 1992-06-30 Eastman Kodak Company Apparatus for inserting leading end of web during spooling of strips of web
EP0653508A2 (de) * 1993-09-28 1995-05-17 Jaume Anglada Vinas S.A. Vorrichtung zum Nassbehandeln von Geweben
US5775611A (en) * 1996-03-13 1998-07-07 Threlkeld; James O. Support for a traveling strand of rubber yarn
EP1481737A1 (de) * 2002-03-05 2004-12-01 Mitsubishi Heavy Industries, Ltd. Beschichtungsvorrichtung und verfahren zur herstellung eines beschichteten flächengebildes und in der luft schwebende mini-wendestange
US20110023323A1 (en) * 2008-06-23 2011-02-03 Prinotec Gmbh Drying system for webs of goods passing through in the form of printed and/or coated paper webs
US8109010B2 (en) * 2006-09-26 2012-02-07 Fujifilm Corporation Method for drying applied film and drying apparatus
JP2014105084A (ja) * 2012-11-28 2014-06-09 Sumitomo Metal Mining Co Ltd 加熱処理装置及びシート状基材の製造方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI67586C (fi) * 1981-11-02 1987-12-29 Valmet Oy Foerfarande och anordning i samband med ytlimning av pappersbana och papper tillverkat med foerfarandet och/eller anordningen.
DE4240700C2 (de) * 1992-12-03 2003-11-06 Carl Kramer Vorrichtung zum schwebend Führen einer bewegten Warenbahn
DE4416399C2 (de) * 1994-05-09 1999-04-01 Voith Gmbh J M Trocknungsvorrichtung für eine laufende Materialbahn
DE10044676C2 (de) * 2000-09-09 2002-08-01 Vits Maschinenbau Gmbh Wendestange
DE10322518A1 (de) * 2003-05-19 2004-12-09 Voith Paper Patent Gmbh Bahnführungseinrichtung
DE10322525A1 (de) * 2003-05-19 2004-12-09 Voith Paper Patent Gmbh Bahnführungseinrichtung
DE102007051963A1 (de) * 2007-10-31 2009-05-07 Voith Patent Gmbh Materialbahntrockneranordnung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1949237A (en) * 1932-07-08 1934-02-27 Champion Coated Paper Company Web tensioning apparatus
US2689196A (en) * 1951-04-02 1954-09-14 Joseph S Daniels Web drier
US2736106A (en) * 1956-02-28 Offen
US3032246A (en) * 1957-10-18 1962-05-01 Sperry Rand Corp Tape guide
US3097971A (en) * 1960-11-09 1963-07-16 British Iron Steel Research Method of and apparatus for supporting or guiding strip material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2736106A (en) * 1956-02-28 Offen
US1949237A (en) * 1932-07-08 1934-02-27 Champion Coated Paper Company Web tensioning apparatus
US2689196A (en) * 1951-04-02 1954-09-14 Joseph S Daniels Web drier
US3032246A (en) * 1957-10-18 1962-05-01 Sperry Rand Corp Tape guide
US3097971A (en) * 1960-11-09 1963-07-16 British Iron Steel Research Method of and apparatus for supporting or guiding strip material

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3531035A (en) * 1968-08-02 1970-09-29 Ibm Path-modifying apparatus for continuously moving web
US3634948A (en) * 1970-08-20 1972-01-18 Tadashi Kobayashi Drying apparatus for papermaking
US3668788A (en) * 1970-08-20 1972-06-13 Tadashi Kobayashi Method and apparatus for drying wavily running strip with hot blasts
US3912186A (en) * 1972-08-12 1975-10-14 Agfa Gevaert Ag Air-cushion winding machine
US4186496A (en) * 1977-03-15 1980-02-05 Dominion Engineering Works Limited Web drier section
US4176775A (en) * 1977-03-28 1979-12-04 Beloit Corporation Inhibiting noise in sheet spreaders
EP0364392A2 (de) * 1988-10-13 1990-04-18 Beloit Corporation Spreizstangenvorrichtung
EP0364392A3 (de) * 1988-10-13 1991-02-06 Beloit Corporation Spreizstangenvorrichtung
US5125630A (en) * 1989-11-02 1992-06-30 Eastman Kodak Company Apparatus for inserting leading end of web during spooling of strips of web
WO1991006890A3 (en) * 1989-11-02 1991-10-03 Eastman Kodak Co Apparatus for spooling strips of web material
WO1991006890A2 (en) * 1989-11-02 1991-05-16 Eastman Kodak Company Apparatus for spooling strips of web material
EP0653508A2 (de) * 1993-09-28 1995-05-17 Jaume Anglada Vinas S.A. Vorrichtung zum Nassbehandeln von Geweben
ES2082694A2 (es) * 1993-09-28 1996-03-16 Jauma Anglada Vinas S A Maquina para tratamiento en humedo de tejidos.
EP0653508A3 (de) * 1993-09-28 1997-03-12 Jaume Anglada Vinas Sa Vorrichtung zum Nassbehandeln von Geweben.
US5775611A (en) * 1996-03-13 1998-07-07 Threlkeld; James O. Support for a traveling strand of rubber yarn
EP1481737A1 (de) * 2002-03-05 2004-12-01 Mitsubishi Heavy Industries, Ltd. Beschichtungsvorrichtung und verfahren zur herstellung eines beschichteten flächengebildes und in der luft schwebende mini-wendestange
US20060013951A1 (en) * 2002-03-05 2006-01-19 Kenji Yamada Coater and method for producing coated sgeet and air floating mini-turn bar
EP1481737A4 (de) * 2002-03-05 2007-08-08 Mitsubishi Heavy Ind Ltd Beschichtungsvorrichtung und verfahren zur herstellung eines beschichteten flächengebildes und in der luft schwebende mini-wendestange
US8109010B2 (en) * 2006-09-26 2012-02-07 Fujifilm Corporation Method for drying applied film and drying apparatus
US20110023323A1 (en) * 2008-06-23 2011-02-03 Prinotec Gmbh Drying system for webs of goods passing through in the form of printed and/or coated paper webs
JP2014105084A (ja) * 2012-11-28 2014-06-09 Sumitomo Metal Mining Co Ltd 加熱処理装置及びシート状基材の製造方法

Also Published As

Publication number Publication date
DE1449674A1 (de) 1970-01-29
GB1041850A (en) 1966-09-07

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