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EP0491886B1 - Device for stretching running material webs sideways, especially paper webs - Google Patents

Device for stretching running material webs sideways, especially paper webs Download PDF

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Publication number
EP0491886B1
EP0491886B1 EP91909812A EP91909812A EP0491886B1 EP 0491886 B1 EP0491886 B1 EP 0491886B1 EP 91909812 A EP91909812 A EP 91909812A EP 91909812 A EP91909812 A EP 91909812A EP 0491886 B1 EP0491886 B1 EP 0491886B1
Authority
EP
European Patent Office
Prior art keywords
webs
elements
tentering
spreader
another
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
EP91909812A
Other languages
German (de)
French (fr)
Other versions
EP0491886A1 (en
Inventor
Manfred Weis
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.)
Jagenberg AG
Original Assignee
Jagenberg 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 Jagenberg AG filed Critical Jagenberg AG
Priority to AT9191909812T priority Critical patent/ATE104921T1/en
Publication of EP0491886A1 publication Critical patent/EP0491886A1/en
Application granted granted Critical
Publication of EP0491886B1 publication Critical patent/EP0491886B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
    • 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
    • B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
    • B65H23/025—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers
    • B65H23/0258—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a bowed axis

Definitions

  • the invention relates to a device for spreading running webs of material, in particular paper webs, according to the preamble of claim 1, as is known from DE-B-2 007 569.
  • Such spreader devices serve to prevent the formation of folds in the case of wide material webs guided over deflection rollers or to bring a plurality of individual webs which are guided next to one another at a constant distance from one another.
  • the single webs have to be spread slightly after the longitudinal cut, so that a certain distance between the longitudinal edges of the single webs is created for problem-free winding. It is necessary that after the webs have been spread they are guided exactly in parallel.
  • the size of the spread and the running direction of the individual webs depend on the curvature of the spreader elements, their distance from one another and the wrap angle of the webs.
  • the device shown is therefore structurally complex, in addition, the individually adjustable segments of the spreader elements are difficult to set due to the large number of possible combinations.
  • the invention has for its object to provide a generic device for wide stretching, which enables a reproducible setting depending on the material web parameters with only one adjustment parameter.
  • the invention enables the two spreader elements to be pivoted continuously with only one drive in order to change the distance from one another and the wrap angle in order to set a desired spread. At the same time, the wrapping conditions and the relative position of the planes of curvature relative to one another are maintained with each adjustment, so that the individual webs running out of the spreader device run exactly parallel with each adjustment.
  • the spreader device described in FIG. 1 is mounted in the frame of a machine for winding a paper web, with which single webs 1 produced by longitudinal cuts are wound into winding rolls. It is located between a guide roller 2 at the exit of the longitudinal cutting device and the support roller 3, on which the winding roller rests during winding.
  • the spreader device has two spreader elements 4, 5, which are constructed in a known manner and are roll-shaped in the looping area, with an adjustable curvature, which are arranged at a distance from one another transversely to the direction of web travel and are partially wrapped around by webs 1 with alternating directions of rotation. The webs 1 are thus deflected upwards by the spreader element 4, then downwards by the spreader element 5.
  • the spreader elements 4, 5 are constructed and arranged so that the plane 6 of the incoming webs 1 essentially parallel to the plane 7 of the outgoing webs 1. Furthermore, the spreader elements 4, 5 are curved in a plane against the web running direction in one plane, the two planes of curvature running parallel to one another.
  • the degree of spreading of the individual webs 1 is adjustable via the distance between the spreader elements 4, 5 and the respective wrap angle. So that the parallelism of the outgoing webs 1 is maintained during adjustment, the spreader elements 4, 5 are mounted in the frame of the winding machine so that both the two levels of curvature and the two web levels 6, 7 remain substantially parallel to one another.
  • each spreader element 4, 5 is mounted on a four-bar linkage and the two four-bar linkages are coupled to one another via a gear with a fixed transmission ratio.
  • the four-bar linkage to which the spreader element 4 is fastened consists of a drive lever 9 which is fixedly rotatable in the frame about the hinge point 8, a coupling member 10 articulated thereon and an output lever 11 articulated thereon which is mounted in the frame in the hinge point 12.
  • the spreader element 4 is fixed to the coupling member 10 and fixed at the articulation point 13 between the drive lever 9 and the coupling member 10.
  • the four-bar linkage to which the spreader element 5 is fastened builds up from a drive lever 15 mounted in the hinge point 14 on the frame, a coupling member 16 and an output lever 17 which is fastened in the frame at the hinge point 18.
  • the spreader element 5 is suspended from the hinge point 19 and fixed to the coupling member 16.
  • the two drive levers 9, 15 are coupled to one another via a transmission with a fixed transmission ratio, e.g. B. a revolving chain 20, which connects two gears 21, 22, which are each mounted in the articulation point 8 or 14 of the drive levers 9 or 15 and are fixedly connected to them.
  • the chain 20 is arranged and connected to a swivel drive so that the two drive levers 9, 15 pivot in the same direction, the two spreader elements 4, 5 can thus be moved towards and away from each other.
  • the leverage ratios on the two quadrilaterals and the location The fixed articulation points 8, 12, 14, 18 are selected so that when the two drive levers 9, 15 are pivoted with the common drive, the distance between the spreader elements 4, 5 and the wrap angle change, but the planes of curvature of the two spreader elements 4, 5 parallel and their angles to the path planes 6, 7 remain constant. Likewise, the two wrap angles change to substantially the same extent, so that the plane 6 of the incoming webs 1 remains parallel to the plane 7 of the outgoing webs 1.
  • the spreader elements 4, 5 are mounted on both sides of the tracks 1 on four-bar linkages, of which only one side is shown in FIG. 1. At least one pair of the articulation points 8, 12, 14 or 18 on both sides is connected to one another via a synchronous shaft in order to ensure a uniform adjustment of the spreader elements on both sides of the tracks 1; in the example, the articulation points 8 via the synchronizing shaft 23.
  • the two quadrilaterals or their coupling can be locked so that the planes of curvature of the spreader elements 4, 5 are fixed at any angle, preferably parallel to the planes (6, 7) of the incoming or outgoing tracks can.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Laser Beam Processing (AREA)

Abstract

Devices for stretching running material webs sideways, especially paper webs, are known which have roller-like and curved width stretching components in the winding region which are pivotably coupled in a frame at a distance from one another. In order to facilitate a reproducible adjustment dependently upon the material web parameters with only one adjustment parameter, the widthways stretching components (4, 5) are according to the invention secured to the coupling member (10, 16) of an articulated rectangle, whereby both drive levers (9, 15) of the articulated rectangles are interconnected to pivot in the same direction via a gear (20, 21, 22).

Description

Die Erfindung betrifft eine Vorrichtung zum Breitstrecken von laufenden Materialbahnen, insbesondere von Papierbahnen, gemäß dem Oberbegriff des Patentanspruchs 1, wie sie aus der DE-B-2 007 569 bekannt ist.The invention relates to a device for spreading running webs of material, in particular paper webs, according to the preamble of claim 1, as is known from DE-B-2 007 569.

Derartige Breitstreckvorrichtungen dienen dazu, bei breiten, über Umlenkrollen geführten Materialbahnen die Bildung von Falten zu verhindern oder mehrere, nebeneinander geführte Einzelbahnen auf einem konstanten Abstand voneinander zu bringen. So müssen in Aufwickelmaschinen zum Aufwickeln von durch Längsschnitte erzeugten Einzelbahnen zu Wickelrollen die Einzelbahnen nach dem Längsschnitt etwas gespreizt werden, damit für ein problemloses Aufwickeln ein gewisser Abstand zwischen den Längskanten der Einzelbahnen entsteht. Dabei ist es erforderlich, daß nach dem Spreizen der Bahnen diese genau parallel geführt werden. Bekannterweise hängt die Größe der Spreizung und die Laufrichtung der Einzelbahnen von der Krümmung der Breitstreckelemente, ihrem Abstand voneinander und dem Umschlingungswinkel der Bahnen ab.Such spreader devices serve to prevent the formation of folds in the case of wide material webs guided over deflection rollers or to bring a plurality of individual webs which are guided next to one another at a constant distance from one another. For example, in winding machines for winding single webs produced by longitudinal cuts into winding rolls, the single webs have to be spread slightly after the longitudinal cut, so that a certain distance between the longitudinal edges of the single webs is created for problem-free winding. It is necessary that after the webs have been spread they are guided exactly in parallel. As is known, the size of the spread and the running direction of the individual webs depend on the curvature of the spreader elements, their distance from one another and the wrap angle of the webs.

Stand der TechnikState of the art

Aus der EP-PS 0 066 527 ist eine gattungsgemäße Breitstreckvorrichtung bekannt, bei der die beiden Breitstreckelemente mit Abstand voneinander in einem gemeinsamen, schwenkbaren Rahmen gelagert sind. Um den gewünschten Abstand der Einzelbahnen voneinander in Abhängigkeit von Parametern der Materialbahn (Breite, Dicke etc.) einstellen zu können und die Parallelität der auslaufenden Einzelbahnen zu gewährleisten, ist zusätzlich die Krümmung jedes der beiden Breitstreckelemente individuell einstellbar.From EP-PS 0 066 527 a generic spreader device is known in which the two spreader elements are stored at a distance from each other in a common, pivotable frame. In order to be able to set the desired distance of the individual webs from one another depending on parameters of the material web (width, thickness, etc.) and to ensure the parallelism of the outgoing individual webs, the curvature of each of the two spreader elements can also be individually adjusted.

Die gezeigte Vorrichtung ist daher konstruktiv aufwendig, zusätzlich sind die einzeln verstellbaren Segmente der Breitstreckelemente aufgrund der Vielzahl von Kombinationsmöglichkeiten nur schwer reproduzierbar einzustellen.The device shown is therefore structurally complex, in addition, the individually adjustable segments of the spreader elements are difficult to set due to the large number of possible combinations.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemäße Vorrichtung zum Breitstrecken zu schaffen, die eine reproduzierbare Einstellung in Abhängigkeit von den Materialbahnparametern mit nur einem Verstellparameter ermöglicht.The invention has for its object to provide a generic device for wide stretching, which enables a reproducible setting depending on the material web parameters with only one adjustment parameter.

Diese Aufgabe wird mit den Merkmalen des Patentanspruchs 1 gelöst.This object is achieved with the features of patent claim 1.

Die Erfindung ermöglicht ein stufenloses Verschwenken der beiden Breitstreckelemente mit nur einem Antrieb, um den Abstand voneinander und den Umschlingungswinkel zur Einstellung einer gewünschten Spreizung zu verändern. Gleichzeitig werden bei jeder Verstellung die Umschlingungsverhältnisse und die relative Position der Krümmungsebenen zueinander beibehalten, so daß die aus der Breitstreckvorrichtung auslaufenden Einzelbahnen bei jeder Einstellung exakt parallel laufen.The invention enables the two spreader elements to be pivoted continuously with only one drive in order to change the distance from one another and the wrap angle in order to set a desired spread. At the same time, the wrapping conditions and the relative position of the planes of curvature relative to one another are maintained with each adjustment, so that the individual webs running out of the spreader device run exactly parallel with each adjustment.

Die Unteransprüche enthalten bevorzugte, da besonders vorteilhafte Ausgestaltungen der Erfindungen.The subclaims contain preferred, since particularly advantageous, configurations of the inventions.

Kurze Beschreibung der ZeichnungBrief description of the drawing

Die Zeichnung dient zur Erläuterung der Erfindung anhand eines vereinfacht dargestellten Ausführungsbeispiels.

Fig. 1
zeigt grob schematisch eine Seitenansicht einer erfindungsgemäßen Breitstreckvorrichtung.
Fig. 2
zeigt schematisch drei verschiedene Arbeitsstellungen.
The drawing serves to explain the invention with reference to an embodiment shown in simplified form.
Fig. 1
shows a rough schematic side view of a spreader device according to the invention.
Fig. 2
schematically shows three different working positions.

Weg zur Ausführung der ErfindungWay of carrying out the invention

Die in Fig. 1 beschriebene Breitstreck-Vorrichtung ist im Gestell einer Maschine zum Aufwickeln einer Papierbahn gelagert, mit der durch Längsschnitte erzeugte Einzelbahnen 1 zu Wickelrollen aufgewickelt werden. Sie befindet sich zwischen einer Leitrolle 2 am Ausgang der Längsschneideeinrichtung und der Tragwalze 3, auf der die Wickelrolle beim Aufwickeln aufliegen.The spreader device described in FIG. 1 is mounted in the frame of a machine for winding a paper web, with which single webs 1 produced by longitudinal cuts are wound into winding rolls. It is located between a guide roller 2 at the exit of the longitudinal cutting device and the support roller 3, on which the winding roller rests during winding.

Die Breitstreck-Vorrichtung weist zwei auf bekannte Weise aufgebaute, im Umschlingungsbereich walzenförmige Breitstreckelemente 4, 5 mit einer einstellbaren Krümmung auf, die mit Abstand voneinander quer zur Bahnlaufrichtung angeordnet sind und von den Bahnen 1 mit wechselndem Umlaufsinn teilweise umschlungen werden. Die Bahnen 1 werden so von dem Breitstreckelement 4 zunächst nach oben, dann von dem Breitstreckelement 5 nach unten umgelenkt.The spreader device has two spreader elements 4, 5, which are constructed in a known manner and are roll-shaped in the looping area, with an adjustable curvature, which are arranged at a distance from one another transversely to the direction of web travel and are partially wrapped around by webs 1 with alternating directions of rotation. The webs 1 are thus deflected upwards by the spreader element 4, then downwards by the spreader element 5.

Damit die Einzelbahnen 1 nach der Spreizung durch die Breitstreck-Vorrichtung zwar mit größerem seitlichen Abstand voneinander, jedoch wieder parallel zueinander laufen, sind die Breitstreckelemente 4, 5 so aufgebaut und angeordnet, daß die Ebene 6 der einlaufenden Bahnen 1 im wesentlichen parallel zu der Ebene 7 der auslaufenden Bahnen 1 ist. Weiterhin sind dazu die Breitstreckelemente 4, 5 gegen die Bahnlaufrichtung in einer Ebene bogenförmig gekrümmt, wobei die beiden Krümmungsebenen parallel zueinander verlaufen.So that the single webs 1 after spreading by the spreader device run with a larger lateral distance from each other, but again parallel to each other, the spreader elements 4, 5 are constructed and arranged so that the plane 6 of the incoming webs 1 essentially parallel to the plane 7 of the outgoing webs 1. Furthermore, the spreader elements 4, 5 are curved in a plane against the web running direction in one plane, the two planes of curvature running parallel to one another.

Der Grad der Spreizung der Einzelbahnen 1 ist über den Abstand der Breitstreckelemente 4, 5 und den jeweiligen Umschlingungswinkel einstellbar. Damit bei einer Verstellung die Parallelität der auslaufenden Bahnen 1 erhalten bleibt, sind die Breitstreckelemente 4, 5 im Gestell der Aufwickelmaschine so gelagert, daß sowohl die beiden Krümmungsebenen als auch die beiden Bahnebenen 6, 7 im wesentlichen parallel zueinander bleiben.The degree of spreading of the individual webs 1 is adjustable via the distance between the spreader elements 4, 5 and the respective wrap angle. So that the parallelism of the outgoing webs 1 is maintained during adjustment, the spreader elements 4, 5 are mounted in the frame of the winding machine so that both the two levels of curvature and the two web levels 6, 7 remain substantially parallel to one another.

Konstruktiv ist dies dadurch realisiert, daß jedes Breitstreckelement 4, 5 an einem Gelenkviereck gelagert ist und die beiden Gelenkvierecke über ein Getriebe mit einem festen Übersetzungsverhältnis miteinander gekoppelt sind. Das Gelenkviereck, an dem das Breitstreckelement 4 befestigt ist, besteht aus einem fest im Gestell um den Gelenkpunkt 8 drehbar gelagerten Antriebshebel 9, einem daran angelenkten Koppelglied 10 und einem an diesem angelenkten Abtriebshebel 11, der im Gestell im Gelenkpunkt 12 gelagert ist. Das Breitstreckelement 4 ist an dem Koppelglied 10 fixiert und am Gelenkpunkt 13 zwischen Antriebshebel 9 und Koppelglied 10 befestigt. Entsprechend baut sich das Gelenkviereck, an dem das Breitstreckelement 5 befestigt ist, aus einem im Gelenkpunkt 14 am Gestell gelagerten Antriebshebel 15, einem Koppelglied 16 und einem Abtriebshebel 17 auf, der im Gestell im Gelenkpunkt 18 befestigt ist. Das Breitstreckelement 5 ist am Gelenkpunkt 19 aufgehängt und an dem Koppelglied 16 fixiert.In terms of construction, this is achieved in that each spreader element 4, 5 is mounted on a four-bar linkage and the two four-bar linkages are coupled to one another via a gear with a fixed transmission ratio. The four-bar linkage to which the spreader element 4 is fastened consists of a drive lever 9 which is fixedly rotatable in the frame about the hinge point 8, a coupling member 10 articulated thereon and an output lever 11 articulated thereon which is mounted in the frame in the hinge point 12. The spreader element 4 is fixed to the coupling member 10 and fixed at the articulation point 13 between the drive lever 9 and the coupling member 10. Correspondingly, the four-bar linkage to which the spreader element 5 is fastened builds up from a drive lever 15 mounted in the hinge point 14 on the frame, a coupling member 16 and an output lever 17 which is fastened in the frame at the hinge point 18. The spreader element 5 is suspended from the hinge point 19 and fixed to the coupling member 16.

Die beiden Antriebshebel 9, 15 sind über ein Getriebe mit festem Übersetzungsverhältnis miteinander gekoppelt, z. B. eine umlaufende Kette 20, die zwei jeweils im gestellfesten Gelenkpunkt 8 bzw. 14 der Antriebshebel 9 bzw. 15 gelagerte und fest mit diesen verbundene Zahnräder 21, 22 verbindet. Die Kette 20 ist so angeordnet und mit einem Schwenkantrieb verbunden, daß die beiden Antriebshebel 9, 15 gleichsinnig schwenken, die beiden Breitstreckelemente 4, 5 somit aufeinander zu und voneinander weg bewegt werden können. Die Hebelverhältnisse an den beiden Gelenkvierecken und die Lage der festen Gelenkpunkte 8, 12, 14, 18 sind so gewählt, daß bei einem Verschwenken der beiden Antriebshebel 9, 15 mit dem gemeinsamen Antrieb sich zwar der Abstand der Breitstreckelemente 4, 5 und die Umschlingungswinkel ändern, jedoch die Krümmungsebenen der beiden Breitstreckelemente 4, 5 parallel und deren Winkel zu den Bahnebenen 6, 7 konstant bleiben. Gleichfalls verändern sich die beiden Umschlingungswinkel in im wesentlichen gleichem Maße, so daß die Ebene 6 der einlaufenden Bahnen 1 parallel zur Ebene 7 der auslaufenden Bahnen 1 bleibt.The two drive levers 9, 15 are coupled to one another via a transmission with a fixed transmission ratio, e.g. B. a revolving chain 20, which connects two gears 21, 22, which are each mounted in the articulation point 8 or 14 of the drive levers 9 or 15 and are fixedly connected to them. The chain 20 is arranged and connected to a swivel drive so that the two drive levers 9, 15 pivot in the same direction, the two spreader elements 4, 5 can thus be moved towards and away from each other. The leverage ratios on the two quadrilaterals and the location The fixed articulation points 8, 12, 14, 18 are selected so that when the two drive levers 9, 15 are pivoted with the common drive, the distance between the spreader elements 4, 5 and the wrap angle change, but the planes of curvature of the two spreader elements 4, 5 parallel and their angles to the path planes 6, 7 remain constant. Likewise, the two wrap angles change to substantially the same extent, so that the plane 6 of the incoming webs 1 remains parallel to the plane 7 of the outgoing webs 1.

Die Breitstreckelemente 4, 5 sind zu beiden Seiten der Bahnen 1 an Gelenkvierecken gelagert, von denen in Fig. 1 nur die einer Seite dargestellt sind. Zumindest ein Paar der gestellfesten Gelenkpunkte 8, 12, 14 oder 18 an beiden Seiten ist über eine Synchronwelle miteinander verbunden, um eine gleichförmige Verstellung der Breitstreckelemente zu beiden Seiten der Bahnen 1 sicherzustellen; im Beispiel die Gelenkpunkte 8 über die Synchronwelle 23. Die beiden Gelenkvierecke oder ihre Kopplung sind arretierbar, so daß die Krümmungsebenen der Breitstreckelemente 4, 5 in einem beliebigen Winkel, vorzugsweise parallel zu den Ebenen (6, 7) der einlaufenden oder auslaufenden Bahnen fixiert werden können.The spreader elements 4, 5 are mounted on both sides of the tracks 1 on four-bar linkages, of which only one side is shown in FIG. 1. At least one pair of the articulation points 8, 12, 14 or 18 on both sides is connected to one another via a synchronous shaft in order to ensure a uniform adjustment of the spreader elements on both sides of the tracks 1; in the example, the articulation points 8 via the synchronizing shaft 23. The two quadrilaterals or their coupling can be locked so that the planes of curvature of the spreader elements 4, 5 are fixed at any angle, preferably parallel to the planes (6, 7) of the incoming or outgoing tracks can.

Claims (4)

  1. Apparatus for the tentering of running material webs (1), especially of paper webs, with two curved tentering elements (4, 5) which are roller-shaped in the looping-round region and which are pivotably mounted in a manner coupled in a frame at a distance from one another, characterized in that the tentering elements (4, 5) are each fastened to the coupling member (10, 16) of a four-bar mechanism, the two drive levers (9, 15) of the two four-bar mechanisms being coupled to one another so as to be pivotable in the same direction via a gear (20, 21, 22).
  2. Apparatus according to Claim 1, characterized by a pivoting drive engaging on one drive lever (9 or 15).
  3. Apparatus according to Claim 1 or 2, characterized in that the tentering elements are mounted on four-bar mechanisms arranged on both sides of the webs (1), whilst at least one pair of points of articulation (8) of the drive levers (9), the said points of articulation being fixed relative to the frame, is interconnected by means of a synchronous shaft (23).
  4. Apparatus according to one of Claims 1 to 3, characterized in that the planes of curvature of the tentering elements (4, 5) can be fixed at any angle, preferably parallel to the planes (6, 7) of the webs (1) running in or running out.
EP91909812A 1990-07-05 1991-05-22 Device for stretching running material webs sideways, especially paper webs Expired - Lifetime EP0491886B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT9191909812T ATE104921T1 (en) 1990-07-05 1991-05-22 DEVICE FOR SPREADING RUNNING WEBS OF MATERIAL, ESPECIALLY PAPER WEBS.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4021451A DE4021451A1 (en) 1990-07-05 1990-07-05 DEVICE FOR THE WIDTH STRETCHING OF RUNNING MATERIALS, IN PARTICULAR OF PAPERS
DE4021451 1990-07-05
PCT/EP1991/000956 WO1992000910A1 (en) 1990-07-05 1991-05-22 Device for stretching running material webs sideways, especially paper webs

Publications (2)

Publication Number Publication Date
EP0491886A1 EP0491886A1 (en) 1992-07-01
EP0491886B1 true EP0491886B1 (en) 1994-04-27

Family

ID=6409721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91909812A Expired - Lifetime EP0491886B1 (en) 1990-07-05 1991-05-22 Device for stretching running material webs sideways, especially paper webs

Country Status (6)

Country Link
EP (1) EP0491886B1 (en)
JP (1) JPH05501099A (en)
CA (1) CA2066450A1 (en)
DE (2) DE4021451A1 (en)
FI (1) FI920958A0 (en)
WO (1) WO1992000910A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2703326B1 (en) 2012-08-29 2020-07-01 Valmet Technologies, Inc. Method for separating partial webs in a slitter winder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2007569B1 (en) * 1970-02-19 1971-04-22 Erwin Kampf Maschinenfabrik Roller mill for pulling apart strips
US3724737A (en) * 1971-10-06 1973-04-03 E Bodnar Spreader for slit web material
CA1102230A (en) * 1977-06-27 1981-06-02 Kenneth G. Frye Web spreader

Also Published As

Publication number Publication date
WO1992000910A1 (en) 1992-01-23
JPH05501099A (en) 1993-03-04
CA2066450A1 (en) 1992-01-06
FI920958A0 (en) 1992-03-04
DE4021451A1 (en) 1992-01-09
EP0491886A1 (en) 1992-07-01
DE59101507D1 (en) 1994-06-01

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