Búsqueda Imágenes Maps Play YouTube Noticias Gmail Drive Más »
Iniciar sesión
Usuarios de lectores de pantalla: deben hacer clic en este enlace para utilizar el modo de accesibilidad. Este modo tiene las mismas funciones esenciales pero funciona mejor con el lector.

Patentes

  1. Búsqueda avanzada de patentes
Número de publicaciónUS3874043 A
Tipo de publicaciónConcesión
Fecha de publicación1 Abr 1975
Fecha de presentación9 Oct 1973
Fecha de prioridad9 Oct 1973
Número de publicaciónUS 3874043 A, US 3874043A, US-A-3874043, US3874043 A, US3874043A
InventoresWilliam J Holm
Cesionario originalRiggs & Lombard Inc
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Apparatus for uncurling the edges of a running web
US 3874043 A
Resumen
An adjustable apparatus is provided for uncurling both edges of a running web to insure that the web moves in a flat or open width condition for proper drying. A plurality of transversely extending telescopic tubes are mounted in closely spaced parallel relation with respect to the face of the running web. The tubes are connected to a common plenum chamber which, in turn, is connected to a blower driving recirculated vapor or air through the tubes under pressure. The outer end of each tube is provided with a movable nozzle for directing a jet of air or vapor against the opposing selvedges, forcing them flat against a supporting conveyor. The nozzles are connected to a common support and drive mechanism which allows transverse adjustment of the nozzles to accommodate webs of different widths.
Imágenes(1)
Previous page
Next page
Reclamaciones  disponible en
Descripción  (El texto procesado por OCR puede contener errores)

[ 51 Apr. 1,1975

United States Patent 1191 Holm 26/DIG, l 26/DIG. l 26/DIG l Wmm m.m.m KK add mumm en GUU 833 366 999 NH 8009 952 35 347 633 699 Primary ExaminerRobert R. Mackey [73] Assignee:

Attorney, Agent, or Firm-M0rse, Altman, Oates & Bello 22 Filed: Oct. 9, 1973 21 1 Appl. No.: 404,308

[57] ABSTRACT An adjustable apparatus is provided for uncurling both edges of a running web to insure that the web moves [52] U.S. 26/68, 26/DIG. 1,

34/160, 933 in a flat or open width condition for proper drying. A 26/DIG. plurality of transversely extendlng telescop1c tubes are [51] Int. [58] Field of mounted in closely spaced parallel relation with re- 34/225 38/143 spect to the face of the running web. The tubes are connected to a common plenum chamber which, in turn, is connected to a blower driving recirculated vapor or air through the tubes under pressure. The outer end of each tube is provided with a movable nozzle for directing a jet of air or vapor against the op- References Cited UNITED STATES PATENTS posing selvedges, forcing them flat against a supporting conveyor. The nozzles are connected to a common support and drive mechanism which allows transverse adjustment of the nozzles to accommodate webs of different widths.

lllll Buck........... Remington.. Hcffelfingcr Foley Bramhall, Jr Wittig Bro\vn......1..

FOREIGN PATENTS OR APPLICATIONS 10/1951 Belgium 26/DIG. 1 3 Claims 2 Drawing Figures PATENTED APR H975 3 874, 043

APPARATUS FOR UNCURLING TI-IE EDGES OF A RUNNING WEB BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates generally to textile machinery and more particularly is directed towards a new and improved apparatus for use in uncurling the edges of a running web such as knit goods and the like.

2. Description of the Prior Art In the processing of various types of webs, particularly textiles such as knit goods and the like, the web displays a strong tendency to curl along the side edges. This characteristic is particularly prevalent in knit goods and the problem interferes with production processes. For example, knit material leaving a scouring operation very often will curl along the edges so as to prevent proper drying of the web. While tenter frames and the like have been used to flatten webs, such equipment is generally quite complex and expensive and also may damage the selvedges. Nip rolls have also been used but these have not been adjustable and have not improved the drying action.

Accordingly, it is an object of the present invention to provide improvements in equipment for uncurling the edges of a running web. Another object of this invention is to provide a web edge uncurling apparatus that is readily adjustable to webs of different widths. Another object of this invention is to provide an apparatus adapted to simultaneously uncurl and dry both edges of a running web.

SUMMARY OF THE INVENTION This invention features an apparatus for'uncurling and drying the edges of a running web, comprising a conveyor adapted to carry the web along a longitudinal path in a flat or open width condition, a plurality of telescopic tubes extending transversely above the face of the running web, a nozzle movably mounted to opposite ends of each tube proximate to each edge of the web, conduit means connecting the tubes and a blower means connected to the conduit means for delivering vapor or air through the conduit means, the telescopic tubes and through the nozzles against the edges of the web to straighten and dry the edges. Each of the nozzles is connected by a common bracket and a transversely extending lead screw is drivingly connected to the bracket for selectively moving the nozzles inwardly and outwardly depending upon the width of the web being processed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. I is a fragmentary view in perspective of an apparatus for uncurling and drying the edges of a running web made according to the invention, and,

FIG. 2 is a sectional end view of the apparatus.

DETAILED DESCRIPTIONOF THE PREFERRED EMBODIMENT Referring now to the drawings, the reference character generally indicates a web of textile material which may be a woven material in an open width condition or a knit material in a flat, tubular condition. The web is carried longitudinally by means of a conveyor 12 which preferably is of an openwork construction such as a mesh screen or perforated belt in order to enhance the draining and drying of the web 10, particularly if the web has passed through a washing or scouring process. The present apparatus is particularly useful in a drying stage of a web scouring apparatus of the sort shown in US. Pat. No. 3,643,475. In such web scouring apparatus, the web is subjected to a scouring action by means of jets of scouring solvent directed across the web and/or passing the web in and out of a tank of scouring solvent for the purpose of removing various impurities and particularly oil from the web. The web leaving the scouring station is then carried in a flat form through a drying chamber where heat is employed to vaporize the solvent from the web. This may be done by passing the web about a set of heated rotary drums, preferably together with a conveyor if the web is knit material in order to prevent stretching of the material. A preferred alternative, when handling knit goods, is to carry the web in a flat, tensionless condition through a drying chamber in which the atmosphere is heated. This may be done by recirculating the atmosphere within the chamber through a heat exchanger and back into the driving chamber whereby the heated vaporized solvent is used as the drying medium. In either case, the web, particularly ifa knit material, will curl along both edges so as to interfere with the handling of the web as well as the drying thereof and produces an uneven roll when wound. If the edges curl back upon themselves, the double fold is less likely to be fully dry when the web leaves the drying chamber and the present invention is provided to eliminate this problem.

Preferably the conveyor 12 carries the web 10 along in a horizontal path as shown in FIG. 1. Disposed above the upper reach of the conveyor and web is a plurality of heads 14 (A), (B), (C) and (D) disposed in spaced parallel relation extending transversely of the web in closely spaced parallel relation to the face thereof. While four heads are shown, this number may be increased or decreased as desired. Each head 14 is comprised of a center housing 16 which, in the illustrated embodiment, is generally cubicle. This configuration may be altered. Each housing preferably is supported in fixed position by means ofa bracket 18 mounted between opposing side walls 20 and 22 which form a drying chamber for the web 10. For the sake of clarity, only one bracket 18 is illustrated and it will be understood that a bracket or other suitable support means are provided for each of the other heads in the system.

Extending from opposite faces of the housing 16 are tubes 24 and 26, preferably co-axial and extending in closely spaced parallel relation to the face of the web 10. The tubes 24 and 26 extend transversely of the web length and are provided at their outer free ends with a telescopic tube section 28 and 30 slidably mounted in their respective tubes. Each telescopic section 28 and 30 is mounted for smooth sliding movement with respect to its supporting tube and each terminates in a nozzle 32 and 34, respectively. Each nozzle extends diagonally downwardly and outwardly terminating in a somewhat flattened tip forming an elongated slot opening 36 through which gas or air is delivered under pressure to curled edges 37 and 37' of the web 10, as best shown in FIG. 2.

In practice, the telescopic tubular sections 28 and 30 are pre-positioned by moving them in and out as required so that the nozzle tips are located a short distance inwardly of the curled edges in optimum position so that the air or gas delivered by the nozzles will force the curled edges 37 and 37' to uncurl outwardly and lie flat against the supporting conveyor 12. By utilizing a number of units 14 spaced along the path of the web and employing the flat-type nozzle tip, the web edges will be kept uncurled for a time sufficient for the edges to dry and then lie flat naturally.

Air or vapor is fed to the nozzles 32 and 34 by means of a conduit or riser 38, one connected to each of the heads 14 (A), (B), (C) and (D) and indicated by reference characters 38 (A), (B), (C) and (D). All of the risers 38 (A), (B), (C) and (D) connect to a common plenum chamber 40 mounted to the wall and connected to the discharge side ofa blower 42 mounted to the opposite side of the wall 20, as best shown in FIG. 2. In the vapor re-circulating embodiment shown, the blower 42 is connected at its intake side to the interior of the drying chamber by means of a duct 44 communicating with an exhaust port 46 in the wall 20. In this fashion, heated vapor in the drying chamber is drawn through the exhaust port 46 and forced by the blower 42 into the plenum chamber down through the riser 38 into the respective heads 14 from whence the pressurized vapor is delivered in opposite directions through the nozzles 32 and 34 against the curled edges. A heat exchanger can be added to this system to heat the vapor.

Insofar as the web 10 may be fabricated in different widths, the present apparatus provides for conveniently adjusting all of the heads simultaneously to the same extent whereby the nozzles will be properly located for drying and uncurling action regardless of web width. As shown in the drawings, the adjustment mechanism of the illustrated embodiment includes a pair of lead screws 48 and 50 extending transversely above the conveyor and web with the ends thereof rotatably supported to walls 20 and 22 by means of bearings 52 and 54. Each lead screw had a pair of oppositely threaded sections 56 and 58 with each section engaging a separate follower 60 and 62. Thus, rotation of the lead screw 48 will cause the follower 60, 62 to move in opposite directions in or out depending upon the direction of rotation. Both lead screws 48 and 50 are controlled by means of a hand wheel 64 located on the outside of the wall 22. The two lead screws are drivingly connected to one another by means of a continuous chain 66 engaging a gear 68 mounted on the outer end of each of the lead screws.

Each of the followers 60 and 62 is connected to and supports a pair of longitudinally extending parallel frames 70 and 72 from which depend in spaced relation a plurality of hangers 74, 76 each carrying a bracket 78 and 80 rigidly connected at its lower end to a nozzle 32 and 34. respectively. In this fashion, rotation of the hand wheel 64 will cause both lead screws to rotate thereby moving the two frames 70 and 72 simultaneously to or away from one another depending upon the direction of rotation. This movement of the braces,

in turn, will cause the nozzles to move in or out to a set position best suited to the width of the web passing thereunder. The adjustment may be made quickly and easily by manipulation of the hand crank 64. A viewing port 82 is conveniently provided in close proximity to the hand crank in order to allow the operator to view the position of the nozzles.

Having thus described the invention what I claim and desire to obtain by Letters Patent of the United States 1. Apparatus for uncurling and drying the edges of a running web, comprising a. walls defining a substantially closed housing containing a hot gaseous atmosphere therein,

b. a conveyor belt having a flat horizontal upper reach disposed in said housing for conveying said web through said housing in a flat and substantially tensionless condition,

c. a plurality of fixed, rigid tubes mounted to said housing and extending in spaced parallel relation, transversely above the upper reach of said belt and said web,

d. a tubular nozzle telescopically connected to each end of each of said fixed tubes and terminating in a downwardly and outwardly directed restricted slot opening oriented parallel to the edge of said web,

e. at least one lead screw having oppositely threaded portions mounted to opposite side walls of said housing with at least one end extending through one of said walls, said lead screw being parallel to said tubes,

f. a pair of followers mounted in spaced relation to each lead screw and threaded one to each threaded portion.

g. a bracket mounted to each follower and movable therewith,

h. all of said nozzles adjacent one side of said web connected to the same bracket and follower whereby rotation of said lead screw will move all of said nozzles along one side of said web in the same transverse direction and all of said nozzles along the other side of said web in the opposite direction.

i. conduit means connected to each of said fixed tubes, and,

j. blower means connected to said conduit means,

k. the intake of said blower means communicating with the interior of said housing whereby the heated gaseous atmosphere is recirculated from said housing through said nozzles to uncurl and dry the edges of said web.

2. Apparatus according to claim 1 wherein said conveyor belt is foraminous.

3. Apparatus according to claim I wherein said intake for said blower means is positioned above the level of said belt.

Citas de patentes
Patente citada Fecha de presentación Fecha de publicación Solicitante Título
US1717004 *17 Mar 192811 Jun 1929Hunter James Machine CoApparatus for stretching and drying weblike materials
US1912724 *30 Nov 19316 Jun 1933Stokes & Smith CoMethod and apparatus for spreading fabrics
US2613522 *14 Sep 194914 Oct 1952American Viscose CorpApparatus for treating fabrics and uncurling the edges thereof
US2674023 *30 Ene 19526 Abr 1954Ansley T FoleySelvage edge straightener
US2747250 *4 Sep 195329 May 1956American Viscose CorpFabric spreader
US3142107 *2 Jul 196228 Jul 1964John E WittigSelvage uncurler attachments
US3398466 *22 Dic 196627 Ago 1968Wolverine CorpSlot apparatus for high velocity gas treatment of moving webs
Citada por
Patente citante Fecha de presentación Fecha de publicación Solicitante Título
US4053967 *17 Dic 197518 Oct 1977Erhard & Leimer KgApparatus for flattening the bent-up edge of a sheet workpiece
US4145796 *2 Ago 197727 Mar 1979Erhard & Leimer KgApparatus for flattening the bent-up edge of a sheet workpiece
US4197621 *17 Ago 197915 Abr 1980Erhard & Leimer KgApparatus for flattening the bent-up edge of a sheet workpiece
US5046272 *1 May 199010 Sep 1991Kimberly-Clark CorporationFluid-operated stabilizing apparatus and method
US5069735 *4 Jun 19903 Dic 1991Milliken Research CorporationApparatus for producing sealed edge knit wiping cloths
US5197722 *28 Oct 199130 Mar 1993Union Special CorporationCloth folding device with airblower for uncurling ends
US5363784 *26 Mar 199315 Nov 1994Union Special CorporationSewing cloth handling device
US5546643 *6 Sep 199520 Ago 1996Albany International Corp.Method to reduce forming fabric edge curl
US5803002 *21 Mar 19978 Sep 1998Union Special CorporationMethod and apparatus for latchtacking
US5865135 *15 Ago 19972 Feb 1999Atlanta Attachment CompanyMethod and apparatus for producing a hemmed folded and seamed finished workpiece
US648136215 May 200119 Nov 2002Kimberly-Clark Worldwide, Inc.Orbital motion device for seaming garments
US649703215 May 200124 Dic 2002Kimberly-Clark Worldwide, Inc.Refastenable bonding of garment side panels
US651322115 May 20014 Feb 2003Kimberly-Clark Worldwide, Inc.Garment side panel conveyor system and method
US651418715 May 20014 Feb 2003Kimberly-Clark Worldwide, Inc.Folding and manufacture of pants
US656216715 May 200113 May 2003Kimberly-Clark Worldwide, Inc.Methods for making garments with fastening components
US656569115 May 200120 May 2003Kimberly-Clark Worldwide, Inc.Method and apparatus for forming a lap seam
US659611315 May 200122 Jul 2003Kimberly-Clark Worldwide, Inc.Presentation and bonding of garment side panels
US672303415 May 200120 Abr 2004Kimberly-Clark Worldwide, Inc.Presentation of fastening components for making prefastened and refastenable pants
US680878721 Ene 200326 Oct 2004Kimberly-Clark WorldwideMethods for making garments with fastening components
US68463745 Abr 200125 Ene 2005Kimberly-Clark WorldwideMethod and apparatus for making prefastened and refastenable pant with desired waist and hip fit
US70699701 Abr 20034 Jul 2006Kimberly-Clark Worldwide, Inc.Apparatus for forming a lap seam
US708122421 Sep 200425 Jul 2006Fuji Photo Film Co., Ltd.Polymer film producing method
US7127840 *17 Sep 200431 Oct 2006Finishtech, Inc.Laundry article spreader apparatus and method
US71755846 Nov 200213 Feb 2007Kimberly-Clark Worldwide, Inc.Refastenable bonding of garment side panels
US738714822 Nov 200217 Jun 2008Kimberly-Clark Worldwide, Inc.Garment side panel conveyor system and method
US745232025 Abr 200318 Nov 2008Kimberly-Clark Worldwide, Inc.Presentation and bonding of garment side panels
US755585713 Sep 20067 Jul 2009Mccabe Stanley GArticle of laundry spreader and stacker
US78277094 Jun 20079 Nov 2010Mccabe Stanley GLinen spreader apparatus and method
US783661721 Dic 200723 Nov 2010Mccabe Stanley GLinen spreader apparatus and method
US8061055 *7 May 200722 Nov 2011Megtec Systems, Inc.Step air foil web stabilizer
US20030066592 *6 Nov 200210 Abr 2003Maxton David AlbertRefastenable bonding of garment side panels
US20030114829 *21 Ene 200319 Jun 2003Coenen Joseph DanielMethods for making garments with fastening components
US20030201061 *25 Abr 200330 Oct 2003Csida Jason GenePresentation and bonding of garment side panels
US20050028410 *17 Sep 200410 Feb 2005Finishtech, Ltd.Laundry article spreader apparatus and method
US20050062204 *21 Sep 200424 Mar 2005Fuji Photo Film Co., Ltd.Polymer film producing method
US20050085782 *7 Dic 200421 Abr 2005Entire InterestMethod and apparatus for making prefastened and refastenable pant with desired waist and hip fit
US20080092415 *13 Sep 200624 Abr 2008Mccabe Stanley GArticle of laundry spreader and stacker
US20080276488 *7 May 200713 Nov 2008Paul SeidlStep air foil web stabilizer
US20080295367 *21 Dic 20074 Dic 2008Mccabe Stanley GLinen spreader apparatus and method
US20080298930 *4 Jun 20074 Dic 2008Mccabe Stanley GLinen spreader apparatus and method
USRE452563 Jul 201225 Nov 2014Kimberly-Clark Worldwide, Inc.Garment side panel conveyor system and method
CN103614849A *20 Nov 20135 Mar 2014福建浔兴拉链科技股份有限公司Modified ribbon discharge device of ribbon loom
CN105066639B *18 Ago 201528 Jul 2017赵盛林带式热源升降碗坯烘干装置
EP0455231A1 *30 Abr 19916 Nov 1991Kimberly-Clark CorporationFluidoperated stabilizing apparatus and method
EP0623698A2 *12 Abr 19949 Nov 1994W.R. GRACE & CO.-CONN.Telescoping slot nozzle
EP0623698A3 *12 Abr 19947 Jun 1995Grace W R & CoTelescoping slot nozzle.
EP0683124A3 *30 Abr 199117 Ene 1996Kimberly Clark CoFluid operated stabilizing apparatus.
Clasificaciones
Clasificación de EE.UU.26/98, 26/106, 26/DIG.100, 38/143, 34/652
Clasificación internacionalD06C3/06
Clasificación cooperativaY10S26/01, D06C3/062
Clasificación europeaD06C3/06B