US3206092A - Device for threading of web-like materials - Google Patents

Device for threading of web-like materials Download PDF

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Publication number
US3206092A
US3206092A US289467A US28946763A US3206092A US 3206092 A US3206092 A US 3206092A US 289467 A US289467 A US 289467A US 28946763 A US28946763 A US 28946763A US 3206092 A US3206092 A US 3206092A
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US
United States
Prior art keywords
distribution box
web
air
conveying
conveying plane
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
US289467A
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English (en)
Inventor
Wallin Sven
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.)
Svenska Flaktfabriken AB
Original Assignee
Svenska Flaktfabriken AB
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Filing date
Publication date
Application filed by Svenska Flaktfabriken AB filed Critical Svenska Flaktfabriken AB
Application granted granted Critical
Publication of US3206092A publication Critical patent/US3206092A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G9/00—Other accessories for paper-making machines
    • D21G9/0063—Devices for threading a web tail through a paper-making machine
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
    • D06C3/02—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by endless chain or like apparatus
    • D06C3/028—Devices for feeding material onto or removing it from stenders
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C7/00—Heating or cooling textile fabrics
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/04—Paper-break control devices
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C2700/00—Finishing or decoration of textile materials, except for bleaching, dyeing, printing, mercerising, washing or fulling
    • D06C2700/09—Various apparatus for drying textiles

Definitions

  • This invention relates to a device for threading a weblike material which is conveyed by air through a drier or a similar treating apparatus, the threading device comprising an endless conveying means running along one side of the conveying path.
  • This invention has a primary object to render possible by simple means an effective and safe threading of weblil-:e material even in such complicated cases as mentioned above.
  • the invention is characterized by a distribution box for the supply of air under pressure, the box being mounted below the supporting part of the conveying means, in such a manner, that conveying means extends along the entire length of the conveying plane and is located on the same level as the conveying plane.
  • the distribution box is provided with a number of preferably eye-lid shaped perforations constructed so as to impart to the air emanating therefrom a forward flow direction substantially in parallel with the conveying plane, whereby the leading end of the web-like material, directed somewhat to the side of the conveying plane proper, is fixed in a definite position immediately above the plane of the distribution box and thereby pressed into adhesive engagement with the conveying means, the conveying means thereafter gliding the leading end automatically through the treating apparatus without the need of any fastening means.
  • the threading device is based on the utilizations of a hydrodynamic principle for stabilizing, the hydrodynamic effect resulting because a flow between two surfaces gives rise to a force which draws the surfaces towards one another until the distance therebetween is so small, that the static pressure drop of the fiow maintains equilibrium with the force.
  • the air distribution box is provided on its upper surface with means defining a groove-shaped depression which serves as a guide for the conveying means.
  • the depth of the groove is such that the conveying means projects above the upper plane of the distribution box the distance required for obtaining the desired contact with the web-like material.
  • FIG. 1 is a fragmentary perspective view of a conveying plane in a dryer equipped with a web threading device constructed in accordance with. the invention
  • FIG. 2 is a fragmentary enlarged plan view of a section of the threading device illustrated in FIG. 1;
  • FIG. 3 is an enlarged fragmentary cross section of the threading device taken along line 33 of FIG. 2;
  • FIG. 4 is another embodiment of a conveying plane having a threading device constructed in accordance with the present invention.
  • the conveying means includes an endless driven conveyor, which in the embodiment shown in FIG. 2, is a chain 4 mounted to the side of the conveying plane.
  • a distribution box 5 for the supply of air under pressure extends along the entire length of the conveying plane and is provided with a number of perforations 6, which are preferably eye-lid shaped, and constructed so as to impart to the air blown out a forward flow direction substantially parallel with the conveying plane 2. As shown in FIG.
  • the air distribution box 5 has on its upper surface a groove-shaped depression 7 which serves as a guide for the conveying means.
  • the groove has a depth which permits the conveying means 4 to project above the upper plane of the air distribution box 5 a sufiicient distance to obtain the desired contact with the web-like material.
  • the depression serving as a guide for the conveying means may also be provided on the side of the air distribution box facing the blowing boxes, as shown in FIG. 4, in which case the ordinary blowing boxes cooperate with the distribution box for producing the desired effect.
  • the eye-lid shaped perforations are replaced by holes 6a provided in triangular portions 8 pressed out of the upper surface of the distribution box 5a.
  • the holes are located in a slightly inwardly inclined edge portion 8a of the portions 8.
  • the threading device may be modified within the scope of the claims, in that two or more chains may be used in combination with the air distribution box as the conveying means.
  • a device for threading and guiding a web-like material which is to be conveyed air-borne through a drier or the like by a conveying plane comprising a plurality of blow boxes having a perforated upper surface and adapted to support and convey said material by air passing through said perforated surface
  • said device including an air distribution box positioned adjacent to said conveying plane and extending along said conveying plane, said air distribution box having a perforated surface adjacent the material to be conveyed, said surface imparting to air emanating from said perforations a forward flow substantially parallel to the upper surface of said blow boxes, whereby air flow from said distribution box causes said web-like material to press towards said surface of said distribution box, conveying means on said distribution box and having a portion coplaner with said conveying plane and adapted to receive and lead the downwardly pressed leading end of the web-like material.
  • a device including a means References Cited by the Examiner efining a groove shaped depression on said perforated UNITED STATES PATENTS surface extending substantially parallel to said convey- 302 31 ing plane, said depression having a width sufficient to ac- 544,970 8/95 Dodge cornmodate and guide said conveying means and a depth 5 756,600 4/08 98184 X suflicient to permit said conveying means to project above 2,805,898 9/57 W11 Said perforated Sudacg 2,848,820 8/58 Walhn et al. 22697 X 4.
  • a device in accordance with claim 3 wherein said 3,136,539 6/64 Lyman 27126 perforated surface comprises a portion projecting from said distribution box adjacent said conveying means and HENSON WOOD Pr'mary having an inwardly inclined edge portion, said edge por- RAPPAEL M. LUPO, ROBERT B. REEVES,
  • tion having means defining a hole therein and 'comrnunica- Examiners. tive with at least one of said distribution boxes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Advancing Webs (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Making Paper Articles (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Drying Of Solid Materials (AREA)
US289467A 1962-06-21 1963-06-19 Device for threading of web-like materials Expired - Lifetime US3206092A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7010/62A SE305121B (en, 2012) 1962-06-21 1962-06-21

Publications (1)

Publication Number Publication Date
US3206092A true US3206092A (en) 1965-09-14

Family

ID=20270165

Family Applications (1)

Application Number Title Priority Date Filing Date
US289467A Expired - Lifetime US3206092A (en) 1962-06-21 1963-06-19 Device for threading of web-like materials

Country Status (8)

Country Link
US (1) US3206092A (en, 2012)
CH (1) CH414456A (en, 2012)
DE (1) DE1460479A1 (en, 2012)
DK (1) DK105694C (en, 2012)
ES (1) ES289149A1 (en, 2012)
GB (1) GB1014958A (en, 2012)
NO (1) NO122168B (en, 2012)
SE (1) SE305121B (en, 2012)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3272415A (en) * 1963-03-19 1966-09-13 Svenska Flaektfabriken Ab Apparatus for stabilized transport of web-or sheet-like materials
US3385490A (en) * 1965-07-08 1968-05-28 Svenska Flaektfabriken Ab Conveying web or sheet material
US20090151886A1 (en) * 2007-12-18 2009-06-18 Vincent Kent Chan Device for web control having a plurality of surface features

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US544970A (en) * 1895-08-20 And nicetown
US756600A (en) * 1902-11-18 1904-04-05 James M Dodge Belt conveyer.
US2805898A (en) * 1955-01-18 1957-09-10 Jr Edward A Willis Fluid current conveyor for fragile articles
US2848820A (en) * 1952-10-08 1958-08-26 Svenska Flaektfabriken Ab Method and apparatus for supporting and conveying web-like material
US3136539A (en) * 1962-12-03 1964-06-09 Lyman Brooks Sheet handling

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US544970A (en) * 1895-08-20 And nicetown
US756600A (en) * 1902-11-18 1904-04-05 James M Dodge Belt conveyer.
US2848820A (en) * 1952-10-08 1958-08-26 Svenska Flaektfabriken Ab Method and apparatus for supporting and conveying web-like material
US2805898A (en) * 1955-01-18 1957-09-10 Jr Edward A Willis Fluid current conveyor for fragile articles
US3136539A (en) * 1962-12-03 1964-06-09 Lyman Brooks Sheet handling

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3272415A (en) * 1963-03-19 1966-09-13 Svenska Flaektfabriken Ab Apparatus for stabilized transport of web-or sheet-like materials
US3385490A (en) * 1965-07-08 1968-05-28 Svenska Flaektfabriken Ab Conveying web or sheet material
US20090151886A1 (en) * 2007-12-18 2009-06-18 Vincent Kent Chan Device for web control having a plurality of surface features
WO2009077927A1 (en) 2007-12-18 2009-06-25 The Procter & Gamble Company Device for web control having a plurality of surface features
US7914648B2 (en) 2007-12-18 2011-03-29 The Procter & Gamble Company Device for web control having a plurality of surface features

Also Published As

Publication number Publication date
DE1460479A1 (de) 1970-02-12
SE305121B (en, 2012) 1968-10-14
GB1014958A (en) 1965-12-31
DK105694C (da) 1966-10-24
NO122168B (en, 2012) 1971-05-24
ES289149A1 (es) 1963-11-01
CH414456A (de) 1966-05-31

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