EP0092735A2 - Gewebebahnführung mit V-förmiger Stütze - Google Patents

Gewebebahnführung mit V-förmiger Stütze Download PDF

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Publication number
EP0092735A2
EP0092735A2 EP83103550A EP83103550A EP0092735A2 EP 0092735 A2 EP0092735 A2 EP 0092735A2 EP 83103550 A EP83103550 A EP 83103550A EP 83103550 A EP83103550 A EP 83103550A EP 0092735 A2 EP0092735 A2 EP 0092735A2
Authority
EP
European Patent Office
Prior art keywords
bearing
tilt roller
pivotal
inlet
web
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.)
Withdrawn
Application number
EP83103550A
Other languages
English (en)
French (fr)
Other versions
EP0092735A3 (de
Inventor
Richard Glanz
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.)
Baldwin Technology Corp
Original Assignee
Baldwin Technology 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 Baldwin Technology Corp filed Critical Baldwin Technology Corp
Publication of EP0092735A2 publication Critical patent/EP0092735A2/de
Publication of EP0092735A3 publication Critical patent/EP0092735A3/de
Withdrawn legal-status Critical Current

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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
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/032—Controlling transverse register of web
    • B65H23/038—Controlling transverse register of web by rollers

Definitions

  • This invention relates to an apparatus utilizing so-called tilt rollers to guide a travelling web of material.
  • the invention relates to a new means for directing the tilt rollers of a web guide in an arcuate path, such that the point about which the tilt rollers are pivoted (hereinafter referred to as the "origin of radius”) may be located at an optimum position, i.e., on the line defined by the inlet edge of the inlet tilt roller.
  • rollers which are disposed perpendicularly with respect to the direction of travel of the web and in frictional contact with the web.
  • the ends of the rollers are moved in arcuate paths parallel to the surface of the web, thus pivoting the rollers in order to oppose lateral movement of the web when it deviates from its designed path and to direct it back into its proper line of travel.
  • U.S. Patent No. 2,797,091 (1957) discloses a web shifting apparatus having a pivotal carriage comprising upright plates upon which an inlet tilt roller and an outlet tilt roller are mounted.
  • the plates carrying the tilt rollers are pivotally mounted at their midpoints upon vertically-disposed spindles.
  • the bearing means which permit the pivoting of the tilt rollers comprise the above-described spindles which rotate in cylindrical holes formed in the upright plates.
  • the arc through which the tilt rollers are pivoted has an origin of radius centered between the inlet and outlet tilt rollers.
  • Ott, U.S. Patent No. 3,390,823 (1968), discloses a web guiding apparatus in which the tilt roller carriage is pivotally mounted upon a stationary frame by means of guide bars and follower means.
  • the guide bars, mounted on the stationary frame, are of arcuate configuration and have a substantially rectangular cross-section.
  • the follower means comprise a plurality of plastic laminations in which a generally arcuate channel is formed for slidably receiving-the guide bars.
  • Ott teaches that in order to reduce wear on the guideway-follower bearing, the guide bars must be formed in an arc having a large radius of curvature.
  • the preferred radius of curvature, as taught by Ott, is between two and eight times the width of the web of material being carried, and at least twice the length of the tilt roller.
  • the origin of radius of the arc through which the tilt roller(s) are pivoted is located a substantial distance forward of the inlet edge of the inlet tilt roller.
  • Ott U.S. Patent No. 3,407,706 (1968), discloses a web sensing and control apparatus which also employs arcuate guide bars and slidable followers as the bearing carriage which permits pivoting of the tilt rollers.
  • Ott discloses the placement of the origin of radius, about which the tilt rollers are arcuately pivoted, at a position far forward of the inlet edge of the inlet tilt roller.
  • Rule U.S. Patent No. 3,581,963 (1971), discloses a method of guiding a travelling web of material and further discloses a number of embodiments of a web guiding apparatus.
  • the bearing carriage employed by Rule comprises arcuate guide bars and slidable followers.
  • Rule discloses one embodiment cf an apparatus having an origin of radius located on the inlet edge of the inlet tilt roller, another embodiment having an origin of radius slightly forward of the inlet tilt roller and yet another wherein the origin of radius is far forward of the inlet tilt roller.
  • Martin U.S. Patent No. 3,615,048 (1971), discloses a web guide apparatus having the inlet and outlet tilt rollers mounted upon a spring-type pivoting structure. This structure is caused to pivot about an origin of radius lying upon the inlet edge of the inlet tilt roller by means of a push-rod which exerts a lateral force on the spring assembly.
  • Bartell, et al. U.S. Patent No. 4,069,959 (1978), disclose a web guide apparatus having an inlet and an outlet tilt roller mounted upon a first frame which pivots with respect to a second stationary frame by means of pivoted linear bearings.
  • These pivoted linear bearings comprise fixed sleeve members, which are attached.to the stationary frame and which have a predetermined orentation for permitting the tilt roller frame to pivot only about a selected origin of radius, and guide rods for slidable linear motion through the sleeve members.
  • Each guide rod is provided with a plurality of axially-oriented tracks, within which ball bearings are contained for facilitating the sliding motion of the guide rod within the bearing sleeve.
  • the apparatus disclosed by Bartell et al. provides for pivotal movement of the tilt rollers about an origin of radius lying upon the outer edge of one of the tilt rollers.
  • Brown et al. U.S. Patent No. 4,103,859 (1978), disclose a means for pivoting a frame, such as those used to support tilt rollers in a web guide, about a selected axis.
  • the Brown et al. bearing assembly includes bearing blocks, each having a longitudinal bore of a pre-selected orientation, mounted upon the stationary portion of the apparatus.
  • the bore of each block contains a ball-bearing bushing suitable for sliding engagement with a bearing rod.
  • Each bearing rod is, in turn, carried by the pivotal portion of the apparatus by means of fixed attachment to a pivotal connector.
  • Brown et al. teach that the orientation of the bearing block bores and bearing rods is determined with reference to a pre-selected pivot point, but they do not disclose a particular location for that point.
  • Damour U.S. Patent No. 4,204,619 (1980), discloses a web guiding apparatus in which the upper tilt roller support frame pivots about a pivot pin assembly located either near to or underneath one of the tilt rollers.
  • the bearing carriage of the Damour apparatus includes four flat bars secured to the stationary frame and four ball caster members attached to the pivotal frame.
  • Each ball caster member comprises a support block, having a rectangular opening, and two ball casters, one of which is mounted on the top interior surface of the opening and the other of which is mounted on the bottom interior surface of the opening.
  • a web guide apparatus which overcomes the limitations of the prior structures by providing a relatively frictionless bearing means which permits the tilt rollers to be pivoted in an arcuate path having any desired radius, and therefore permits the placement of the origin of radius so as to obtain optimal control over the travelling web.
  • a web guide apparatus which comprises a lower stationary tilt roller support means having mounted thereon a plurality of first bearing means adapted for rolling engagement with a plurality of second bearing means; an upper arcuately pivotal tilt roller support means having mounted thereon a plurality of second bearing means adapted for rolling engagement with said first bearing means; an inlet tilt roller having an inlet edge mounted upon the pivotal tilt roller support means; and, an outlet tilt roller mounted upon the pivotal roller support means.
  • the center about which the pivotal tilt roller support means is pivoted i.e., the origin of radius, is located at the midpoint of the line defined by the inlet edge of the inlet tilt roller.
  • an inlet tilt roller and an outlet tilt roller are mounted upon an upper tilt roller support frame which is pivotally mounted upon a lower stationary tilt roller support frame.
  • Two pairs of rotatable hardened steel vee bearing wheels are mounted upon the stationary tilt roller support frame and are oriented in a plane substantially parallel to the plane defined by the web, and two pairs of complemental hardened steel vee bearing tracks adapted for supporting and engaging the vee bearing wheels are mounted upon the pivotal tilt roller support means.
  • Each pair of bearing wheels and its complemental pair of bearing tracks is disposed along an arc centered on an origin of radius located at the midpoint of the line defined by the inlet edge of the inlet tilt roller.
  • the apparatus of the instant invention is superior to those employing guide bar and follower bearing carriages because the rolling, rather than sliding, movement of the vee bearing wheel with respect to the vee bearing track makes the arcuate movement of the pivotal tilt roller support means virtually frictionless. Because of this rolling movement, there is essentially no wear of the vee bearing components resulting from the pivoting of the pivotal tilt roller support means, whereas the laminations or other surfaces of a guide bar and follower bearing inevitably wear down as the result of continual sliding friction. As a result of the vee bearing's freedom from wear, the arc through which the pivotal tilt roller support means moves need not be one of large radius, as is taught by those prior art references which employed guide-bar and follower bearings.
  • the location of the origin of radius about which the pivotal tilt roller support means travels may therefore be selected so as to obtain the maximum degree of control over the position of the travelling web, i.e., the origin of radius may be located at the midpoint of the line defined by the inlet edge of the inlet tilt roller.
  • Another advantage of the apparatus of the present invention is that, in the absence of substantial wear upon the hardened bearing surfaces, the size of the bearing components remains essentially constant during use, thereby eliminating the need to periodically tighten or otherwise adjust the bearing assembly as the result of such wear. Because of this durability of the bearings, the web guiding characteristics of the apparatus remain essentially constant throughout its life. This is in contrast to the need to periodically adjust or replace bearing components in order to compensate for the wear inherent in the use of any of the above-described bearing carriages in which sliding or rotating contact occurs between the bearing surfaces. Web guiding accuracy is thereby greatly improved in the present invention.
  • the apparatus of the present invention also overcomes certain disadvantages of the use of the various bearing systems which employ ball bearings or ball casters.
  • the motion of both ball bearings and ball casters causes wear in the race or other structure in which the ball itself is contained due to the continuous sliding friction between the ball and its housing.
  • the rolling hardened vee bearing wheel contacts the bearing track at only one continuously-moving point on its outer edge (as the tilt roller frame is pivoted) and therefore wears at such a slow rate that the vee bearing will last for the life of the apparatus.
  • the apparatus may therefore be used in virtually any environment, including those in which such an accumulation of debris may affect the performance of certain of the previously-used bearing systems, such as the guide rods, bearing bushings containing ball bearings, or ball casters.
  • Yet another advantage of the apparatus of the invention is the simplicity of construction of its bearing carriage. Only a few parts make up the bearing carriage, thus substantially lowering the purchase price of the apparatus and its maintenance requirements.
  • An additional object of this invention is to provide a web guiding apparatus having improved accuracy as the result of the close fit of the bearing carriage components.
  • Yet another object of the present invention is to provide a web guiding apparatus having a bearing carriage which retains the close fit of its components because of its immunity to wear and which therefore enables the apparatus to retain its web guiding accuracy.
  • a still further object is to provide a web guide apparatus having a bearing carriage which is unaffected by the accumulation of dust or other debris, is durable and is of simple construction.
  • the apparatus of the invention comprises frame 1, upon which is mounted a stationary tilt roller support means, such as plate 3, which in turn has mounted upon it four vee bearing wheels 5.
  • Frame 1 is also preferably provided with a panel 2, upon which appropriate controls may be mounted.
  • pivotal tilt roller support means 9 Pivotally mounted upon plate 3 is pivotal tilt roller support means 9. As further shown in Figure 1, pivotal tilt roller support means 9 comprises cross members 15, end members 17 and plate 19. Mounted between end members 17 of pivotal tilt roller support means 9 are inlet tilt roller 11 and outlet tilt roller 13, the direction of travel of the web across said tilt rollers being designated by arrow A.
  • pivotal mounting of pivotal tilt roller support means 9 is accomplished by the supporting and rolling engagement of the vee bearing wheels 5 of plate 3 with two pairs of vee bearing tracks 7a and 7b, which are mounted on the underside of plate 19 of pivotal tilt roller support means 9.
  • a vee bearing system found particularly suitable for this use is the "DUA-L-VEE" v-guide bearing and track system manufactured by Bishop-Wisecarver Corporation.
  • FIG. 2 The position of vee bearing wheels 5 upon plate 3 and the position and angular-orientation of vee bearing tracks 7a and 7b upon plate 19 are illustrated in Figure 2.
  • the position and orientation of the bearing components are selected so that the origin of radius B about which pivotal tilt roller support means 9 is pivoted is located at the midpoint of the line C-C defined by the inlet edge 21 of inlet tilt roller 11.
  • this is accomplished by disposing vee bearing tracks 7b and 7a along arcs D-D and E-E, respectively, both of which are centered at point B.
  • tracks 7a which support inlet tilt roller 11 are concave arc tracks
  • tracks 7b which support outlet tilt roller 13 are convex arc tracks.
  • a pair of bearing wheels 5 is disposed along each of arcs D-D and E-E so as to effect engagement with tracks 7b and 7a respectively. This arrangement permits the close-fitting engagement of the bear- in g wheels 5 between the pairs of tracks 7a and 7b. As previously discussed, when the origin of radius of the arcs D-D and E-E is located at this particular position B, the degree of control which may be exerted by the apparatus over the path of the travelling web is maximized.
  • stationary frame 1 additionally comprises a lower cross-member 23 on the outlet side of the apparatus.
  • an edge detector assembly 25 having sensing means, such as infrared sensor 27, for determining the lateral position of the travelling web.
  • Sensor 27 is preferably calibrated so as to generate an electrical signal whenever the edge of the travelling web moves away from the center of the infrared beam.
  • the signal thus generated is amplified by appropriate means so as to render it capable of activating an appropriate drive means responsive to said signal, such as that illustrated in Figure 2.
  • the drive means operates to move the pivotal tilt roller support means either clockwise or counterclockwise as required to correct the path of travel of the web.
  • the drive means comprises reversing motor 29, which is mounted upon stationary plate 3 and which is connected by shaft coupling 31 to screw shaft 33.
  • Screw shaft 33 is supported by pivot plate 35, having bearings 37, which is in turn fixedly connected to stationary plate 3 by means of pivot plate bracket 39.
  • ball screw nut 41 which is fixedly secured to pivotal yoke assembly 43.
  • Pivotal yoke assembly 43 is fixedly attached to pivotal plate 19 by fasteners 45 which are positioned on opposing sides of pin 47, which pivotally attaches pivotal yoke assembly 43 to pivotal plate 19.
  • pivotal yoke assembly 43 is also caused to move laterally.
  • pivotal yoke assembly 43 is translated into clockwise or counterclockwise arcuate movement of pivotal plate 19 as shown in Figure 2.
  • This arcuate movement of pivotal plate 19, of course, results in the arcuate movement of the entire pivotal tilt roller support means 9, including the inlet and outlet tilt rollers 11 and 13, respectively, upon vee bearing components 5, 7a and 7b.
  • FIG. 2 Additional components shown in Figure 2 permit the generation of an electrical signal for providing the operator of the apparatus with information regarding the position of the pivotal tilt roller support means 9.
  • a connecting link mounting block 49 is attached to pivotal yoke assembly 43.
  • Mounting block 49 by means of connecting link 53, is pivotally attached to transducer block 51.
  • This series of components is completed by the attachment to transducer block 51 of slide-wire potentiometer 55 by means of slide-wire 57. Py means of this mechanical linkage, any motion of pivotal yoke assembly 43 is transmitted to the slide-wire 57 of potentiometer 55.
  • any variation in that signal resulting from the movement of slide-wire 57 and from the consequent change in potential across potentiometer 55 may be readily detected by a suitable measuring device and translated into a form which the operator can readily perceive.
  • a suitable measuring device utilizes an LED (light emitting diode) display (not shown) which indicates the distance, in inches, which the pivotal tilt roller support means 9 has been moved in order to correct the path of the travelling web.

Landscapes

  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP83103550A 1982-04-27 1983-04-13 Gewebebahnführung mit V-förmiger Stütze Withdrawn EP0092735A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37244182A 1982-04-27 1982-04-27
US372441 1982-04-27

Publications (2)

Publication Number Publication Date
EP0092735A2 true EP0092735A2 (de) 1983-11-02
EP0092735A3 EP0092735A3 (de) 1984-07-04

Family

ID=23468132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83103550A Withdrawn EP0092735A3 (de) 1982-04-27 1983-04-13 Gewebebahnführung mit V-förmiger Stütze

Country Status (2)

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EP (1) EP0092735A3 (de)
JP (1) JPS594558A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989009743A1 (en) * 1988-04-15 1989-10-19 Quad/Tech, Inc. Web guide apparatus
FR2633266A1 (fr) * 1988-06-22 1989-12-29 Bwg Bergwerk Walzwerk Dispositif destine a separer des bandes etroites dans une bande refendue longitudinalement, en particulier dans une bande metallique
EP1153868A3 (de) * 2000-05-11 2004-01-02 ERHARDT + LEIMER GmbH Vorrichtung zum Verschwenken eines Drehrahmens
US6955323B2 (en) 2002-05-14 2005-10-18 Zuiko Corporation Web guider
DE102009014477A1 (de) * 2009-03-23 2010-09-30 Bst International Gmbh Stellvorrichtung für eine Bahnlaufregelung
WO2011066133A1 (en) * 2009-11-30 2011-06-03 Eastman Kodak Company Print media tensioning apparatus
DE202017100819U1 (de) * 2017-02-15 2018-05-16 BST eltromat International GmbH Drehrahmenkonstruktion für Bahnlaufsteuervorrichtungen
WO2018149521A1 (de) * 2017-02-15 2018-08-23 BST eltromat International GmbH Drehrahmenkonstruktion für bahnlaufsteuervorrichtungen
CN114737761A (zh) * 2022-04-29 2022-07-12 中交(长沙)建设有限公司 一种污水处理厂沉砂池修建施工装置
CN114763226A (zh) * 2021-01-13 2022-07-19 Bst有限公司 用于幅材传输控制装置的旋转框架结构

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5226033B2 (ja) * 2010-05-14 2013-07-03 株式会社ホニック シート材の位置調整装置
TWI392635B (zh) * 2010-11-26 2013-04-11 Ind Tech Res Inst 軟性元件輸送導正裝置與方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682362A (en) * 1971-03-15 1972-08-08 Rockford Servo Corp Web edge sensing and guiding apparatus
US3724732A (en) * 1972-03-01 1973-04-03 Rockford Servo Corp Web sensing and guiding apparatus
DE2635631C3 (de) * 1975-08-20 1980-02-21 Fife Corp., Oklahoma City, Okla. (V.St.A.) Vorrichtung zur schwenkbaren Auflage eines Rahmens, insbesondere fur Führungswalzen für dünne Materialbahnen, der gegenüber einer Bezugsebene verdrehbar ist
US4069959A (en) * 1976-10-27 1978-01-24 Butler Automatic, Inc. Web guide apparatus
DE3008775C2 (de) * 1980-03-07 1984-03-22 Erhardt & Leimer Kg, 8900 Augsburg Bahnlaufregelvorrichtung

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989009743A1 (en) * 1988-04-15 1989-10-19 Quad/Tech, Inc. Web guide apparatus
FR2633266A1 (fr) * 1988-06-22 1989-12-29 Bwg Bergwerk Walzwerk Dispositif destine a separer des bandes etroites dans une bande refendue longitudinalement, en particulier dans une bande metallique
EP1153868A3 (de) * 2000-05-11 2004-01-02 ERHARDT + LEIMER GmbH Vorrichtung zum Verschwenken eines Drehrahmens
US6955323B2 (en) 2002-05-14 2005-10-18 Zuiko Corporation Web guider
EP1362815A3 (de) * 2002-05-14 2006-02-15 Zuiko Corporation Bahnführungsvorrichtung
DE102009014477A1 (de) * 2009-03-23 2010-09-30 Bst International Gmbh Stellvorrichtung für eine Bahnlaufregelung
WO2011066133A1 (en) * 2009-11-30 2011-06-03 Eastman Kodak Company Print media tensioning apparatus
US8308037B2 (en) 2009-11-30 2012-11-13 Eastman Kodak Company Print media tensioning apparatus
DE202017100819U1 (de) * 2017-02-15 2018-05-16 BST eltromat International GmbH Drehrahmenkonstruktion für Bahnlaufsteuervorrichtungen
WO2018149521A1 (de) * 2017-02-15 2018-08-23 BST eltromat International GmbH Drehrahmenkonstruktion für bahnlaufsteuervorrichtungen
CN114763226A (zh) * 2021-01-13 2022-07-19 Bst有限公司 用于幅材传输控制装置的旋转框架结构
EP4029817A1 (de) * 2021-01-13 2022-07-20 BST GmbH Drehrahmenkonstruktion für bahnlaufsteuervorrichtungen
CN114763226B (zh) * 2021-01-13 2023-12-19 Bst有限公司 用于幅材传输控制装置的旋转框架结构
US12134536B2 (en) 2021-01-13 2024-11-05 Bst Gmbh Rotary frame construction for web transport control devices
CN114737761A (zh) * 2022-04-29 2022-07-12 中交(长沙)建设有限公司 一种污水处理厂沉砂池修建施工装置
CN114737761B (zh) * 2022-04-29 2024-06-04 中交(长沙)建设有限公司 一种污水处理厂沉砂池修建施工装置

Also Published As

Publication number Publication date
EP0092735A3 (de) 1984-07-04
JPS594558A (ja) 1984-01-11

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Inventor name: GLANZ, RICHARD