US3596848A - Web feeding mechanisms - Google Patents

Web feeding mechanisms Download PDF

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Publication number
US3596848A
US3596848A US865549A US3596848DA US3596848A US 3596848 A US3596848 A US 3596848A US 865549 A US865549 A US 865549A US 3596848D A US3596848D A US 3596848DA US 3596848 A US3596848 A US 3596848A
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US
United States
Prior art keywords
web
reel
air
mechanism according
movable element
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
US865549A
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English (en)
Inventor
Denis E E French
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Individual
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Individual
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Publication date
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    • 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
    • B65H23/06—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle
    • B65H23/063—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle and controlling web tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/02—Supporting web roll
    • 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
    • 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
    • B65H23/32—Arrangements for turning or reversing webs
    • 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
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4171—Handling web roll
    • B65H2301/4174—Handling web roll by side portion, e.g. forwarding roll lying on side portion

Definitions

  • WEBFEEDING devices including web tension controldeviees'to a-rprinting:
  • the web tension control devices control the feeding of the paper web so that-the web is fed atthe desiredtension and in the requiredregister to .the printingcylinder. Alternately it may be that the web is fed from a reel through processing devices, for exampleto perforate the-web :wit'h marginal feed I apertures and with cross-perforations; Therpresent'devices for ensuring that the paper web is fed in the required manner-from the reel are somewhat complex. It isnn objectiofthe present invention to providean improvedrmeanswherebydhe paper web can be fed from thereel'in a-simple ad -convenient manner. 4
  • web feeding mechanism includes a table to support a paper web reel on itsside and including means to provide a cushion of thong porting table and the underside of "the reel on its side, a dancing rolleror the like around which .is fed, and an air supply .valve motivated by the of ing roller or the like to control the-apassage-ofair from: pressure supply to the means toprovidetheeushionofaic the supporting tableand the paperwzsbreels Web feeding'mechanisms in aceoeflancewiththepresent-invention will now be described ofesample withreference to the accompanyingdrawings wherein FIG. 1 is a diagrammaticside view o'f'a reel table FIG. 2 is anzenlarged viewof-part offifi. l FIG. 3 is a plan view corresponding 10536-2;
  • the-ree'l.3 lies-omitssnpporting table 4 and the reel ispositioned between :twoaverti? cally movable locatingcenters5.?lheiowenlocatingcenter5a (FIG. 2) is moved .by an-aircylinder-rhechan'nm ficzupwardly seatings 9 and permit the air under pressure to pass between the seating! and the balls I through the nozzles 6.
  • a pipe or pipes 10 isprovided beneath each of the nozzles and these pipesare connectedto a source 11 of air to supply the air underpressure behind thenozzles.
  • the males are as shown in FIG. 3"ar'r'anged in a symmetrical patternon the table 4 in straight lines extending radially outwards fromthe center of the table, that is to say from the position of the vertically movable locating centers" 5.
  • the pipeslfl areconnected to the-air supply LL'Which-may be a centrifugal pump, through abutterfly control valve 12 (FIG.
  • the butterfly control vaive 12 is mechanically connected as by a lever l2a'to a dancing'roller mechanism 13 around which the web passes between the'reel Sand the processing mechanism 1.
  • the dancing roller mechanism accommodates forchanges in tension of the web passing from the reel 3 to the printing press 1' and the position of the dancing roller mechanism l3'is used .to control the supply of pressure air to the nozzles .610 control the amount of air passing from the jet nozzles.
  • the web in being fed from the reel 3 is passed over adjusta- I where :it overlies :a nozzle -:willcause such nozzle to depress the into contact with the tubular centetyofthe reehat and a second or upperlocating centeribiszurged-downwardiy' by an air cylinder mechanism :5d .intojcontactwithtthe upper end of the tubular center of the-reel .3.
  • taincylinder mechanismsSc, fid are connected to .5 sourceflBbfairaunder pressure through a control valve JQJTherreelS operative issupported above the-table 4 :by a cushion-.ofair which locates the reels short distance aboseztheitablef lhecushion of a'iris provided by air being pamed through-a plurality-of small-nozzles6 in thelupper surface.
  • the tableJEaeh ofathese nozzles :6 includes a ball 7 which nprmallyismrgedupwardly by a spring! .into contact with a seating 9 rand whosempper end ⁇ extends above theltop surface of the table nowadays ⁇ -FIG.
  • This cushionofair enables the web to "be unwound from the 'reelus'inga minimum amount of frictioncShould -the tens'ion in the :paper web become too lowthe dancingroller falls andthis variation will affect the movement of-the butterfly valvcto'reduce thesupply of air to'the nozzles .6 and this, in turn, reduces the air cushion supporting the paper awebreel. The red then tends to ⁇ fall back on the supportingtable friction between *the reel and table is increased and the rate ofiunwind of the-reel isthere'by automatically reduced.
  • nozzles 6 provide a cushion of air on which the reels can easily be transported from a loading position to the table from which the web is unwound- As shown in FIGS. 7 and 8 the conveyor reels are each unwound from a respective table 4.
  • the tables 4 are placed one above the other.
  • An adjacent supporting conveyor surface 15 having a plurality of nozzles 6 similar to those shown in FIGS. 4 and is supplied with air under pressure to the nozzles.
  • a vertically movable platform 16 used for example with lift truck mechanism to load a reel on to one of the conveyor surfaces 15.
  • the conveyor surface 16 may, as shown in full lines in'FIG. 8 be located at one side of the supporting table 4 or may, as shown in dotted lines be in line with the supporting table 4.
  • a plurality of supporting tables 4 are provided side by side at the same vertical height in a line and two conveyor surfaces 15 are provided at one side of the sup porting tables and two are provided at opposite ends of the line of supporting tables 4.
  • FIG. 10 shows a similar arrangement to FIG. 9 except that the conveyor surfaces are shown at the sides of the supporting tables.
  • FIG. 11 being a similar view to FIG. 2 there is shown a further embodiment having a modified means to provide a cushion of air between the supporting table and the underside of the paper web reel.
  • This embodiment is particularly suitable when a single paper reel is to be processed.
  • a recess is provided centrally of the mechanism and a bearing 21 is centrally located in the recess.
  • each supporting table has a central recess 20 and an ejector piston 24 is mounted in this recess 20 and a pair of ports 25 communicate with the recess. Air under pressure may be supplied through one port and vacuum may be supplied through the other port.
  • a spindle 21 with bearings 22 fits into the center of the paper reel and is movable axially as well as rotatably in the reel.
  • FIG. 13 shows a mechanism similar to FIG. 11 but in which an annular groove 26 is located around the recess 20 and this groove is in communication with the supply of pressure air through a pipe 27.
  • An air seal 28 is provided above the central recess 29 in the reel to prevent the escape of pressure air. The pressure air supplied through the annular groove supports the reel during unwinding.
  • FIG. 14 is a view of a mechanism similar to that shown in FIG. 13 but the underside'of the reel carries a solid plate 30 which replaces the air seal 28.
  • FIG. 15 illustrates an embodiment sirn'ila tjo Fl Gi. 2 but in which the upper locating center 'niechtinistrn 5h embodies an air supply 3 which IS passed througha'rotary' union 32 and centrally through the locating center 5b to' ap'assage 33 within the reel. Air supplied to the passage 33 can pass through passages around the locating center 5a to the underside of the paper reel 3 to provide the air cushion between-the table 4 and the reel 3.
  • the invention has been described with reference I also be applied to mechanism for rewinding a web.
  • the web is wound on a locating plunge mechanism similar to the plunge mechanism 5 in the drawings but in which the plunge mechanism is driven.
  • the invention can also be applied to an unwind mechanism on a paper web collator more especially for use in collating self-manifolding papers.
  • a web feeding mechanism comprising in combination, a web reel, a table supporting the web reel, means including an air supply for providing a cushion of air between the supporting table and the web reel, a movable element, means feeding the web about said movable element to move it as a function of the tension on the web, and an air supply valve controlled by the position of said movable element to control passage of air from said air supply to said table to vary the cushion of air between the table and the web reel.
  • a mechanism according to claim 1 including a lever mechanism, wherein the movable element is a dancing roller mechanically coupled to the air supply valve by said lever mechanism.
  • nozzles comprise normally closed spring loaded valves and means opening the valves by the passage of the reel over them.
  • reel positioning mechanism includes a spindle rotatably mounted in bearings.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Unwinding Webs (AREA)
  • Advancing Webs (AREA)
  • Winding Of Webs (AREA)
US865549A 1968-10-14 1969-10-13 Web feeding mechanisms Expired - Lifetime US3596848A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB48511/68A GB1217424A (en) 1968-10-14 1968-10-14 Improvements in or relating to web feeding mechanisms

Publications (1)

Publication Number Publication Date
US3596848A true US3596848A (en) 1971-08-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
US865549A Expired - Lifetime US3596848A (en) 1968-10-14 1969-10-13 Web feeding mechanisms

Country Status (4)

Country Link
US (1) US3596848A (de)
DE (1) DE1951820B2 (de)
FR (1) FR2020672A1 (de)
GB (1) GB1217424A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3920136A (en) * 1974-07-15 1975-11-18 Westvaco Corp Air cushion unwind support for reeled sheet
CN108861766A (zh) * 2017-05-16 2018-11-23 响水县龙亨服饰有限公司 一种服装生产用高速导布装置
CN108861765A (zh) * 2017-05-16 2018-11-23 响水县龙亨服饰有限公司 一种服装生产用张紧机
CN111959036A (zh) * 2020-07-13 2020-11-20 上海至亲印刷科技有限公司 包装盒印刷输送装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19734830C2 (de) * 1997-08-12 1999-08-05 Voith Sulzer Finishing Gmbh Wickelvorrichtung, insbesondere in einem Rollenschneider

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047001B (de) * 1957-09-21 1958-12-18 Goebel Gmbh Maschf Einrichtung zum Entlasten des Eigengewichtes von auf Tragwalzen liegenden Wickelrollen aus Papier-, Karton- oder aehnlichen Werkstoffbahnen
US3346209A (en) * 1965-09-17 1967-10-10 Beloit Corp Winder
US3497151A (en) * 1968-08-14 1970-02-24 Ontario Paper Co Ltd Paper machine winder
US3515183A (en) * 1968-08-14 1970-06-02 Purex Corp Ltd Winders for paper machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047001B (de) * 1957-09-21 1958-12-18 Goebel Gmbh Maschf Einrichtung zum Entlasten des Eigengewichtes von auf Tragwalzen liegenden Wickelrollen aus Papier-, Karton- oder aehnlichen Werkstoffbahnen
US3346209A (en) * 1965-09-17 1967-10-10 Beloit Corp Winder
US3497151A (en) * 1968-08-14 1970-02-24 Ontario Paper Co Ltd Paper machine winder
US3515183A (en) * 1968-08-14 1970-06-02 Purex Corp Ltd Winders for paper machines

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3920136A (en) * 1974-07-15 1975-11-18 Westvaco Corp Air cushion unwind support for reeled sheet
CN108861766A (zh) * 2017-05-16 2018-11-23 响水县龙亨服饰有限公司 一种服装生产用高速导布装置
CN108861765A (zh) * 2017-05-16 2018-11-23 响水县龙亨服饰有限公司 一种服装生产用张紧机
CN111959036A (zh) * 2020-07-13 2020-11-20 上海至亲印刷科技有限公司 包装盒印刷输送装置

Also Published As

Publication number Publication date
DE1951820B2 (de) 1971-07-22
GB1217424A (en) 1970-12-31
DE1951820A1 (de) 1970-07-02
FR2020672A1 (de) 1970-07-17

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