EP2233419B1 - Dispositif de réglage des rebords de bande d'une feuille - Google Patents

Dispositif de réglage des rebords de bande d'une feuille Download PDF

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Publication number
EP2233419B1
EP2233419B1 EP09156125A EP09156125A EP2233419B1 EP 2233419 B1 EP2233419 B1 EP 2233419B1 EP 09156125 A EP09156125 A EP 09156125A EP 09156125 A EP09156125 A EP 09156125A EP 2233419 B1 EP2233419 B1 EP 2233419B1
Authority
EP
European Patent Office
Prior art keywords
roller
deflecting
sheeting
deflecting roller
film
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
EP09156125A
Other languages
German (de)
English (en)
Other versions
EP2233419A1 (fr
Inventor
Bernd Hähnel
Werner GÖTZ
Roland Benz
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.)
Uhlmann Pac Systeme GmbH and Co KG
Original Assignee
Uhlmann Pac Systeme GmbH and Co KG
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 Uhlmann Pac Systeme GmbH and Co KG filed Critical Uhlmann Pac Systeme GmbH and Co KG
Priority to EP09156125A priority Critical patent/EP2233419B1/fr
Priority to US12/727,214 priority patent/US8474675B2/en
Publication of EP2233419A1 publication Critical patent/EP2233419A1/fr
Application granted granted Critical
Publication of EP2233419B1 publication Critical patent/EP2233419B1/fr
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/032—Controlling transverse register of web
    • B65H23/038—Controlling transverse register of web by 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
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/50—Driving mechanisms
    • B65H2403/52—Translation screw-thread mechanisms

Definitions

  • the invention relates to a device for web edge control of a film, in particular for film guidance in blister machines of the pharmaceutical industry.
  • a web edge control which is considered as the closest prior art is in the US 3,069,021 disclosed.
  • Such devices for web edge control of films have long been known in blister machines.
  • a mold sheet and a cover sheet are sealed together in the blister machine, with blister pens being prefilled into the mold sheet which are filled with pharmaceutical products.
  • blister pens being prefilled into the mold sheet which are filled with pharmaceutical products.
  • a web edge control is necessary because the films tend during their transport through the machine to run transversely to the direction. The reason for this are parallelism deviations of the deflection rollers and guide rollers as well as inaccurately cut coils of the molding film or cover film.
  • the mold films are previously performed on the last deflection roller before the forming station of two guide plates transversely to the direction.
  • the guide plates are moved by motor means transversely to the film running direction in order to correct the direction of travel of the film.
  • the present invention is therefore an object of the invention to provide a device for web edge control of a film, with the web space control of all types of films can be performed in a small space and in a simple, safe and gentle way.
  • the device for web edge control of a film on a first and a second pulley which are arranged parallel to each other, also at least one drive for axially opposing displacement of the pulleys, a sensor for detecting the position of the film, a means for varying the ratio between the Friction of the film on the first guide roller and the friction of the film on the second guide roller, and a control device for controlling the at least one drive for axially opposing displacement of the guide rollers and means for varying the ratio between the friction of the film on the first guide roller and the Friction of the film on the second deflection roller based on the position of the film detected by the sensor.
  • the deflection rollers are arranged side by side in the axial direction in such a way that the film extends over its width over at least a portion of each of the two deflection rollers.
  • the deflection rollers are mounted on the same shaft, which has a first thread in the region of the first deflection roller and a second thread in the region of the second deflection roller, wherein the first thread and the second thread are in opposite directions and the drive for axially opposing displacement of the deflection rollers, the shaft drives.
  • the means for varying the ratio between the friction of the film on the first deflection roller and the friction of the film on the second deflection roller comprises two pressure rollers which is associated with the first pinch roller of the first deflection roller and the second pinch roller of the second deflection roller.
  • each pressure roller is preferably displaceable in the axial direction simultaneously with the associated deflection roller. In this way, a lateral displacement of the film take place, which is triggered by a pressing of the pressure roller to the film and thus to the respective guide roller and the simultaneous lateral displacement of the guide roller and the pressure roller.
  • each pinch roller is connected to the associated deflection roller such that each pinch roller is displaceable by means of the drive for axially opposing displacement of the deflection rollers in the axial direction simultaneously with the associated deflection roller.
  • the synchronicity of the movement of pulley and associated pinch roller is ensured in a simple manner.
  • the deflection rollers are arranged side by side in the radial direction such that the film only extends over a deflection roller, wherein each deflection roller has its own shaft.
  • films can be processed in which the film retraction force is relatively high.
  • both shafts preferably have opposing threads, and the drive for axially opposing displacement of the pulleys drives both shafts simultaneously.
  • one drive per shaft can also be provided in each case.
  • the means for varying the ratio between the friction of the film on the first deflection roller and the friction of the film on the second deflection roller preferably has a bearing for the shafts, which is designed to be pivotable. As a result, it is easy to switch over from one course of the film around the one shaft to a course of the film around the other shaft.
  • the first deflection roller has a slightly greater distance from the pivot axis than the second deflection roller.
  • the bearing when the bearing is now simultaneously pivotable at between 92 ° and 105 ° degrees, preferably between 93 ° and 98 ° degree, the bearing can thus be simple Way between two positions are pivoted, in each of which only one deflection roller has a connection with the film.
  • At least one sensor for detecting the end positions of the travel of each deflection roller is present, wherein the sensor is connected to the control device.
  • the direction of the drive for the axially opposite displacement of the pulleys can always be changed at the right time.
  • Fig. 1 to 4 a first embodiment of the device according to the invention for web edge control of a film is shown.
  • Foil types are in particular films for blister packs in question, as well as the invention but also on cover films for blister packs and a variety of other types of films applicable, even in other industries.
  • the device for web edge control of a film 2 comprises a housing 4 in which a first deflection roller 6 and a second deflection roller 8 are arranged parallel to one another.
  • the deflection rollers 6, 8 are arranged side by side in the axial direction in such a way that the film 2 extends over at least a portion of each of the two deflection rollers 6, 8 in width.
  • the film 2 should be less wide than the total width of both pulleys 6, 8.
  • the film 2 comes from a film reel (not shown), is deflected by the deflection rollers 6, 8 and the other processing stations (heating station, forming station) in the direction of the arrow C supplied.
  • the deflection rollers 6, 8 have a lateral surface made of, for example, plastic. Between the lateral surface and the film 2 to be conveyed a certain frictional force is generated.
  • a sensor 10 detects the position of at least one lateral edge of the film 2 by means of optical scanning in a field of view 12 and provides signals to an unillustrated integrated control device for web edge control of the film second
  • the two deflection rollers 6, 8 can rotate independently of each other and are in opposite directions axially by a certain amount, for example, by about 10 mm, move toward and away from each other.
  • a motor drive 14 for the axially opposite displacement of the guide rollers 6, 8 is provided. It is also possible to provide two separate drives 14 for the axial displacement of the deflection rollers 6, 8.
  • each guide roller 6, 8 on which the respective lateral surface rotates, mounted on the same shaft 16 which is formed as a spindle.
  • a first thread (not shown) in the region of the first guide roller 6 and a second, opposite thread (not shown) in the region of the second guide roller 8 is present.
  • Sensors 18 can be used to detect the axial end positions of the displacement of the guide rollers 6, 8 serve.
  • Fig. 2 is the maximum approximate state of the two pulleys 6, 8 shown in Fig. 3 the maximum removed state of the two pulleys 6, 8, and in Fig. 4 an intermediate position between the two end positions.
  • the device has a means for varying the ratio between the friction of the film 2 on the first guide roller 6 and the friction of the film 2 on the second guide roller 8.
  • this means is designed such that over the two deflection rollers 6, 8 each have a smaller pressure roller 20, 22 is arranged, which can be preferably pneumatically pressed with slight pressure to the respective guide roller 6, 8 and moved away from it again.
  • the pressure rollers 20, 22 are axially connected in each case with their associated deflection roller 6, 8, so that each pressure roller 20, 22 makes the same axial movement as its associated pulley 6, 8.
  • Fig. 2 To represent the rule principle is in Fig. 2 the film 2 in an excessive manner shifted to the right, so in the transverse direction.
  • the field of view 12 of the sensor 10 evaluates in the present case, the left edge of the film 2 and is a detected control deviation on the control device to the drive 14 on.
  • the film 2 must start from the in Fig. 2 position thus shifted to the left.
  • the left pinch roller 20 is applied with slight pressure to the left guide roller 6 and thus generates a slightly higher frictional force between the guide roller 6 and 2 film than the frictional force between the other guide roller 8 and the film.
  • the regulating device for the drive 14 will select such a direction of rotation that the deflecting rollers 6, 8 move in the direction of the arrows B (FIG. Fig. 3 ) are moved apart. With this axial displacement of the deflection rollers 6, 8, the film 2 is moved by the higher friction force on the left guide roller 6 with this in the direction of the arrow A to the left.
  • Fig. 3 It is shown how the film 2 has also moved with the axial movement of the left guide roller 6 with to the left.
  • the deflection rollers 6, 8 can be so far apart in the axial direction, until a maximum displacement has taken place and the Pulleys 6, 8 are maximally apart.
  • the size of this travel can of course depend to some extent on the type of film to be processed and the other conditions.
  • the film 2 tends to always run to the right. Since the axial movement of the deflection rollers 6, 8 is limited to the outside, at some point the possibility will be used to transport the film 2 by moving apart of the deflection rollers 6, 8 to the left. This is in Fig. 3 shown, in which the pulleys 6, 8 have reached their maximum end position, which is detected by the sensor 18.
  • the control can infinitely and without any loss of time correct the bleeding of the film 2, without that form-fitting guide elements must be used.
  • the pressure rollers 20, 22 are each arranged in the illustrated example in the axially inner region of the guide rollers 6, 8, but they can also be arranged in the axial direction further outward.
  • the lateral surface of the pressure rollers 20, 22 is usually made of an elastic material, e.g. Rubber.
  • a second embodiment of the web edge control according to the invention which is schematically in Fig. 5 to 7 is shown.
  • the two axially oppositely displaceable deflection rollers 6, 8 are arranged parallel to the axis and in the radial direction next to each other.
  • the two deflection rollers 6, 8 are in turn moved axially in opposite directions in the direction of arrows B.
  • a pivotable bearing 24 in which the shafts 16 of the guide rollers 6, 8 are mounted.
  • the film 2 always runs completely on one guide roller 6, 8, while the film 2 does not touch the other guide roller 6, 8 at all.
  • the guide roller 6 would be active and could move the film 2 in the direction of arrow A with the axial movement. During this movement, the guide roller 8 runs back in the opposite axial direction without having contact with the film 2.
  • the first deflection roller 6 has a slightly greater distance from the pivot axis 26 than the second deflection roller 8.
  • the bearing 24 can be pivoted by between 91 ° and 180 °, preferably between 92 ° and 105 ° , and more preferably between 93 ° and 98 °. The closer the value approaches 90 °, the lower problems of the film guide occur during the pivoting of the bearing 24, as will be described below.
  • the bearing 24 can pivot ( Fig. 7 ), so that now the film 2 is guided exclusively by the guide roller 8. This again has the ability to move the film 2 in the same direction (arrow A) on.

Landscapes

  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Claims (12)

  1. Dispositif de réglage des rebords de bande d'une feuille (2), comprenant
    une première poulie de renvoi (6) et une seconde poulie de renvoi (8), disposées parallèlement entre elles,
    au moins un entraînement (14) pour le déplacement axial de sens contraire des poulies de renvoi (6, 8),
    un capteur (10) pour détecter la position de la feuille (2),
    un moyen (20, 22, 24) pour modifier le rapport entre le frottement de la feuille (2) sur la première poulie de renvoi (6) et le frottement de la feuille (2) sur la seconde poulie de renvoi (8), et
    un dispositif de réglage pour le contrôle du au moins un entraînement (14), destiné au déplacement axial de sens contraire des poulies de renvoi (6, 8), et du moyen (20, 22, 24), destiné à modifier le rapport entre le frottement de la feuille (2) sur la première poulie de renvoi (6) et le frottement de la feuille (2) sur la seconde poulie de renvoi (8), sur la base de la position de la feuille (2) détectée par le capteur (10).
  2. Dispositif suivant la revendication 1, caractérisé en ce que les poulies de renvoi (6, 8) sont juxtaposées dans la direction axiale de telle sorte que la feuille (2), suivant sa largeur, défile sur au moins une section de chacune des deux poulies de renvoi (6, 8).
  3. Dispositif suivant la revendication 2, caractérisé en ce que les poulies de renvoi (6, 8) sont montées sur le même arbre (16), qui présente un premier filetage dans la zone de la première poulie de renvoi (6) et un second filetage dans la zone de la seconde poulie de renvoi (8), le premier filetage et le second filetage étant de sens contraire et l'entraînement (14), destiné au déplacement axial de sens contraire des poulies de renvoi (6, 8), entraînant l'arbre (16).
  4. Dispositif suivant l'une des revendications 2 et 3, caractérisé en ce que le moyen (20, 22, 24), destiné à la modification du rapport entre le frottement de la feuille (2) sur la première poulie de renvoi (6) et le frottement de la feuille (2) sur la seconde poulie de renvoi (8), présente deux galets de pression (20, 22), dont le premier galet (20) est associé à la première poulie de renvoi (6) et le second galet (22) est associé à la seconde poulie de renvoi (8), et sert à presser la feuille (2) sur la poulie de renvoi respective (6, 8).
  5. Dispositif suivant la revendication 4, caractérisé en ce que chaque galet de pression (20, 22) est déplaçable dans la direction axiale simultanément avec la poulie de renvoi (6, 8) correspondante.
  6. Dispositif suivant la revendication 5, caractérisé en ce que chaque galet de pression (20, 22) est relié à la poulie de renvoi correspondante (6, 8) de telle sorte que chaque galet de pression (20, 22) est déplaçable dans la direction axiale, simultanément avec la poulie de renvoi correspondante (6, 8), au moyen de l'entraînement (14) destiné au déplacement axial de sens contraire des poulies de renvoi (6, 8).
  7. Dispositif suivant la revendication 1, caractérisé en ce que les poulies de renvoi (6, 8) sont juxtaposées dans la direction radiale de telle sorte que la feuille (2) défile uniquement sur une poulie de renvoi (6, 8), chaque poulie de renvoi (6, 8) présentant un arbre propre (16).
  8. Dispositif suivant la revendication 7, caractérisé en ce que les deux arbres (16) présentent des filetages de sens contraire et l'entraînement (14), destiné au déplacement axial de sens contraire des poulies de renvoi (6, 8), entraîne simultanément les deux arbres (16).
  9. Dispositif suivant l'une des revendications 7 et 8, caractérisé en ce que le moyen (20, 22, 24), destiné à la modification du rapport entre le frottement de la feuille (2) sur la première poulie de renvoi (6) et le frottement de la feuille (2) sur la seconde poulie de renvoi (8), présente un palier (24) pour les arbres (16), réalisé avec une possibilité de pivotement.
  10. Dispositif suivant la revendication 9, caractérisé en ce que la première poulie de renvoi (6) présente par rapport à l'axe de pivotement (26) un écartement légèrement plus élevé que la seconde poulie de renvoi (8).
  11. Dispositif suivant l'une des revendications 9 et 10, caractérisé en ce que le palier (24) peut pivoter d'un angle compris entre 91° et 180°, de préférence entre 92° et 105°, et plus préférentiellement entre 93° et 98°.
  12. Dispositif suivant l'une des revendications précédentes, caractérisé en ce qu'il présente au moins un capteur (18) pour la détection des positions extrêmes du parcours de déplacement de chaque poulie de renvoi (6, 8), le capteur (18) étant relié au dispositif de réglage.
EP09156125A 2009-03-25 2009-03-25 Dispositif de réglage des rebords de bande d'une feuille Ceased EP2233419B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP09156125A EP2233419B1 (fr) 2009-03-25 2009-03-25 Dispositif de réglage des rebords de bande d'une feuille
US12/727,214 US8474675B2 (en) 2009-03-25 2010-03-18 Device for automatically controlling the edges of a web of sheeting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09156125A EP2233419B1 (fr) 2009-03-25 2009-03-25 Dispositif de réglage des rebords de bande d'une feuille

Publications (2)

Publication Number Publication Date
EP2233419A1 EP2233419A1 (fr) 2010-09-29
EP2233419B1 true EP2233419B1 (fr) 2012-05-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09156125A Ceased EP2233419B1 (fr) 2009-03-25 2009-03-25 Dispositif de réglage des rebords de bande d'une feuille

Country Status (2)

Country Link
US (1) US8474675B2 (fr)
EP (1) EP2233419B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111589864A (zh) * 2020-05-29 2020-08-28 王清伟 一种铝箔制造后处理精加工工艺
CN115724262A (zh) * 2021-08-31 2023-03-03 宁德时代新能源科技股份有限公司 辊组件、电池单体的制造设备及辊的调节方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1875777A (en) * 1929-08-13 1932-09-06 Tackaberry Robert Daniel Stretcher and guider
US2332104A (en) * 1942-06-17 1943-10-19 Bartmann & Bixer Inc Apparatus to control the flow of goods
US2548590A (en) * 1950-04-01 1951-04-10 Gen Electric Noncontacting width gauge
US2786675A (en) * 1953-09-03 1957-03-26 Goodrich Co B F Side position regulating apparatus
US3052395A (en) * 1960-04-21 1962-09-04 Perkin Elmer Corp Rollers
US3116244A (en) * 1960-05-12 1963-12-31 Eimco Corp Belt aligning apparatus
US3069921A (en) * 1961-03-10 1962-12-25 Eimco Corp Web control means
US3370771A (en) * 1964-02-26 1968-02-27 Wean Ind Inc Method and apparatus for positioning strip in a continuous strip processing line forwelding to preceding strip
US3373912A (en) * 1965-10-14 1968-03-19 Buckbee Mears Co Automatic positioning of continuously moving webbing
US3490674A (en) * 1968-03-25 1970-01-20 Rockford Servo Corp Web alignment apparatus
JPS6044453A (ja) * 1983-08-19 1985-03-09 Toyo Kikai Kk 走行生地の蛇行修正装置
DE3614981A1 (de) * 1986-05-02 1987-11-05 Erhardt & Leimer Gmbh Verfahren und vorrichtung zum fuehren einer laufenden warenbahn
GB8900285D0 (en) * 1989-01-06 1989-03-08 Pierson Henri G W A web guidance mechanism
US5094442A (en) * 1990-07-30 1992-03-10 Xerox Corporation Translating electronic registration system
JPH10129896A (ja) * 1996-10-30 1998-05-19 Nec Data Terminal Ltd 連続用紙の斜行補正機構
US6637634B1 (en) * 1998-12-21 2003-10-28 Gerber Scientific Products, Inc. Methods for calibration and automatic alignment in friction drive apparatus
WO2004035922A1 (fr) * 2002-10-17 2004-04-29 Metso Paper, Inc. Procede et dispositif pour le controle transversal d'une piste

Also Published As

Publication number Publication date
EP2233419A1 (fr) 2010-09-29
US8474675B2 (en) 2013-07-02
US20100249985A1 (en) 2010-09-30

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