EP0047952A1 - Dispositif pour régler la tension d'une bande - Google Patents

Dispositif pour régler la tension d'une bande Download PDF

Info

Publication number
EP0047952A1
EP0047952A1 EP81107004A EP81107004A EP0047952A1 EP 0047952 A1 EP0047952 A1 EP 0047952A1 EP 81107004 A EP81107004 A EP 81107004A EP 81107004 A EP81107004 A EP 81107004A EP 0047952 A1 EP0047952 A1 EP 0047952A1
Authority
EP
European Patent Office
Prior art keywords
spring
torsion bar
frame
pendulum shaft
roller
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.)
Ceased
Application number
EP81107004A
Other languages
German (de)
English (en)
Inventor
Wilhelm Dipl.-Ing. Kärcher
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.)
Albert Frankenthal AG
Original Assignee
Albert Frankenthal AG
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 Albert Frankenthal AG filed Critical Albert Frankenthal AG
Publication of EP0047952A1 publication Critical patent/EP0047952A1/fr
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • B65H23/16—Registering, tensioning, smoothing or guiding webs longitudinally by weighted or spring-pressed movable bars or rollers
    • 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

Definitions

  • the invention relates to a device for regulating the web tension of a web, which is unwound from a roller interacting with a brake and fed to a processing machine, in particular a paper web fed to a web-fed rotary printing press, with a pendulum roller, which is freely rotatable on a swivel frame which is arranged by means of a Pendulum shaft is pivotally mounted on the machine frame and is supported on it by a spring and by means of which the brake assigned to the roller can be actuated.
  • the frame-side support of the swivel frame is carried out by means of a compression spring which is generally designed as a spiral spring.
  • a compression spring which is generally designed as a spiral spring.
  • Such spring elements require a relatively steep spring characteristic in order to apply the required supporting force within small pendulum movements.
  • the steep spring characteristic leads to relatively large fluctuations in the web tension.
  • Counterweights have already been used to support the pendulum roller.
  • the pen shaft has a coaxially arranged bore which is penetrated by a torsion bar spring which is attached at one end to the machine frame and at the opposite end to the pendulum shaft.
  • the entire machine width is advantageously available for accommodating the torsion bar spring.
  • a very long spring with a relatively gentle spring characteristic can be used, so that the web tension fluctuations still occurring lie within a very narrow web width.
  • the setting of the required spring preload results in a relatively large travel, which has a positive effect on the accuracy that can be achieved.
  • the torsion bar spring used according to the invention is a comparatively cheap component, which has an advantageous effect on the production costs.
  • the accommodation of the torsion bar inside the pendulum shaft results in a very space-saving and compact design.
  • the torsion bar spring can each have an offset at its ends and thus engage in a respectively assigned groove of an assigned spring holder.
  • the frame-side spring holder can be expediently designed as a bolt arranged coaxially to the pendulum shaft and rotatably mounted in the machine side wall, which is provided with a swivel arm which is adjustable on the machine frame by means of an adjusting device and has a groove on the spring side assigned to the spring offset.
  • the tension of a paper web unwound from a roll and fed to a printing press is generally controlled by the fact that the roll is more or less braked.
  • the roller carrier is provided in a manner known per se with a brake which interacts with the roller core.
  • the brake is actuated via a pendulum roller which senses the web tension and is indicated in the figures by 1, around which, as can best be seen in FIG. 1, the paper web 2 is looped around and its movement is converted into a brake actuation movement.
  • Deflection rollers 3 are provided for guiding the paper web.
  • the arrangement and design of the roller carrier and the brake interacting with the roller are known per se and therefore require no further explanation. The drawing is therefore limited to the brake actuation device.
  • the pendulum roller 1 is freely rotatably mounted on a swivel frame 4, which, as can best be seen from FIG. 2, consists of a pendulum shaft 5 and arms 6 which fasten the pendulum roller 1 thereon.
  • the pendulum shaft 5 is in turn freely rotatably supported by bearing housings 7 on the side walls of the machine frame indicated at 8.
  • the pendulum shaft 5 is provided with a rocker arm 9 which is connected to the brake in a manner not shown here Actuating linkage of the roller brake should be articulated.
  • the pendulum roller 1 wrapped in the paper web 2, or the swivel frame 4 receiving the pendulum roller 1 is resiliently supported on the machine frame against the force resulting from the web tension.
  • the pendulum shaft 5 is provided with an axial bore 10 into which a torsion bar spring 11 is inserted, which is clamped on the one hand on the pendulum shaft 5 and on the other hand on the machine frame.
  • the torsion bar spring 11 is provided in the area between its ends with drawn-on centering rings 12, which ensure a coaxial position of the torsion bar spring 11 with respect to the bore 10.
  • the torsion bar spring 11 is provided in the region of its ends with a bend 13, which each engage between two walls of a spring holder 14 or 15, which results in a simple but nevertheless stable form fit.
  • the spring holder 14 on the shaft side can simply be designed as a bolt inserted into the bore 10 of the pendulum shaft 5, which is fork-shaped on the spring side to form a groove 16 associated with the offset 13 of the torsion bar spring 11.
  • the bolt forming the spring holder 14 is fixed in a rotationally locking manner on the pendulum shaft 5 by two pins 17.
  • the frame-side spring holder 15 is designed to bring about an adjustability of the desired spring preload as a rotatably mounted bolt in a wall reinforcement 18, which is provided on the spring side with a groove 19 which receives the associated offset 13 of the torsion bar spring 11.
  • the bolt forming the rotatably mounted spring holder 15 is provided with a lateral extension 20, on which, as can best be seen from FIG. 1, a pivot arm 21 is clamped.
  • an adjusting screw 22 is articulated on this swivel arm 21, which on the other hand is supported on a projection 23 of the machine frame.
  • the swivel arm 21 is provided with a rotatably mounted pin 24, which is penetrated by the adjusting screw 22, which is supported on the frame projection 23 in a freely rotatable manner.
  • the swivel arm 21 is adjusted and thus the rotatably mounted spring holder 15 is rotated, which leads to a twisting of the torsion bar spring 11 and thus to the desired spring preload.
  • the relatively soft spring characteristic of the torsion bar spring 11 allows a very precise setting in an advantageous manner.
  • Pointer 25 attached, which cooperates with a scale 26 attached to the adjacent frame wall 8.
  • the maximum deflection of the pendulum roller 1 is limited by a stop 27 provided on the frame, which interacts with stop plates 28 fastened on the arms 6 of the swivel frame 4.

Landscapes

  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
EP81107004A 1980-09-13 1981-09-07 Dispositif pour régler la tension d'une bande Ceased EP0047952A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3034675 1980-09-13
DE19803034675 DE3034675A1 (de) 1980-09-13 1980-09-13 Vorrichtung zur regelung der bahnspannung einer warenbahn

Publications (1)

Publication Number Publication Date
EP0047952A1 true EP0047952A1 (fr) 1982-03-24

Family

ID=6111925

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81107004A Ceased EP0047952A1 (fr) 1980-09-13 1981-09-07 Dispositif pour régler la tension d'une bande

Country Status (2)

Country Link
EP (1) EP0047952A1 (fr)
DE (1) DE3034675A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4417023C2 (de) * 1994-05-14 1996-05-09 Roland Man Druckmasch Einrichtung zur Messung der Bahnspannung einer kontinuierlich bewegten Stoffbahn
CN105217354B (zh) * 2015-10-27 2017-08-25 重庆耐德山花特种车有限责任公司 软管盘卷的恒扭矩张紧器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1279032B (de) * 1966-09-17 1968-10-03 Plamag Plauener Druckmaschinen Einrichtung an Rotationsdruckmaschinen zur Abstuetzung der Lagerzapfen einer Papierleitwalze
DE1774631A1 (de) * 1968-07-30 1971-10-21 Kleinewefers Soehne J Taenzerwalze
DE1804590B2 (de) * 1968-10-23 1976-09-30 Fa. A. Monforts, 4050 Mönchengladbach Verfahren und vorrichtung zur steuerung einer textilmaschine
DE2918889A1 (de) * 1978-06-09 1979-12-20 B & J Mfg Co Stossdaempfer fuer eine etikettenzufuehrung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1279032B (de) * 1966-09-17 1968-10-03 Plamag Plauener Druckmaschinen Einrichtung an Rotationsdruckmaschinen zur Abstuetzung der Lagerzapfen einer Papierleitwalze
DE1774631A1 (de) * 1968-07-30 1971-10-21 Kleinewefers Soehne J Taenzerwalze
DE1804590B2 (de) * 1968-10-23 1976-09-30 Fa. A. Monforts, 4050 Mönchengladbach Verfahren und vorrichtung zur steuerung einer textilmaschine
DE2918889A1 (de) * 1978-06-09 1979-12-20 B & J Mfg Co Stossdaempfer fuer eine etikettenzufuehrung

Also Published As

Publication number Publication date
DE3034675A1 (de) 1982-03-25

Similar Documents

Publication Publication Date Title
EP0170111B1 (fr) Tambour de transfert pour machine à imprimer des feuilles, en particulier pour machines de cartonnerie
EP0157246B1 (fr) Dispositif de raclage pour bandes transporteuses
DE2820102B2 (de) Vorrichtung zum Ritzen von Glas oder ähnlichem Material
DE3007112A1 (de) Stuetzvorrichtung fuer eine walze
DE2921126A1 (de) Vorrichtung zum messen und regeln der zugkraft einer zugmaschine
DE19817977C2 (de) Rollenführung für ein Walzgerüst
EP0811443A1 (fr) Tête de roulage tangentiel
DE3221011A1 (de) Walze
EP0512267B1 (fr) Laminoir
EP0112400B1 (fr) Dispositif d'introduction de forces dans une structure, en particulier un essieu d'une voiture, la suspension de roues etc.
EP0047952A1 (fr) Dispositif pour régler la tension d'une bande
EP1086916B1 (fr) Unité de palier pour rouleaux tendeurs de bandes de matériau
EP0532454A1 (fr) Dispositif de fixation d'un couvercle stationnaire d'une carde
EP0357970B1 (fr) Dispositif pour ajuster des butées
DE102005015791B4 (de) Verfahren zur Walzenjustage in einer Druckmaschine
DE10035001B4 (de) Leitwalze
DE29716031U1 (de) Verstellvorrichtung für ein Walzenpaar zum Einstellen eines Walzenspaltes
DE2643018C3 (de) Walzenpresse mit einer Durchbiegungseinstellwalze z.B. für Papiermaschinen
DE8024600U1 (de) Vorrichtung zur regelung der bahnspannung einer warenbahn
DE19940398B4 (de) Lagereinheit für Zugwalzen von Materialbahnen
DE3712877C1 (en) Device for adjusting the longitudinal register of a printing carrier web
DE2655807C2 (de) Piezoelektrischer Gasanzünder
DE2947534C2 (de) Wiegebrücke an einer elektro-mechanischen Bandwaage
EP1310309A1 (fr) Tête de roulage tangentiel
DE2607798C3 (de) Anzeigevorrichtung fur Meß- oder Regelgerate

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LU NL SE

17P Request for examination filed

Effective date: 19820908

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19841215

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KAERCHER, WILHELM, DIPL.-ING.