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EP1354677A2 - Water-jet cutting device - Google Patents

Water-jet cutting device Download PDF

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Publication number
EP1354677A2
EP1354677A2 EP20030001815 EP03001815A EP1354677A2 EP 1354677 A2 EP1354677 A2 EP 1354677A2 EP 20030001815 EP20030001815 EP 20030001815 EP 03001815 A EP03001815 A EP 03001815A EP 1354677 A2 EP1354677 A2 EP 1354677A2
Authority
EP
European Patent Office
Prior art keywords
water jet
cutting device
fibrous web
jet cutting
support plate
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.)
Granted
Application number
EP20030001815
Other languages
German (de)
French (fr)
Other versions
EP1354677A3 (en
EP1354677B1 (en
Inventor
Karlheinz Straub
Michael Dr. Sollinger
Ralf Pfifferling
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
Voith Paper Patent GmbH
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 Voith Patent GmbH, Voith Paper Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1354677A2 publication Critical patent/EP1354677A2/en
Publication of EP1354677A3 publication Critical patent/EP1354677A3/en
Application granted granted Critical
Publication of EP1354677B1 publication Critical patent/EP1354677B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/004—Severing by means other than cutting; Apparatus therefor by means of a fluid jet
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G9/00—Other accessories for paper-making machines
    • D21G9/0063—Devices for threading a web tail through a paper-making machine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0591—Cutting by direct application of fluent pressure to work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/182—With means to weigh product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2066—By fluid current
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/222—With receptacle or support for cut product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/364—By fluid blast and/or suction

Definitions

  • the invention relates to a water jet cutting device for separating a Strip from a running paper, cardboard, tissue or other Fibrous web in a machine for producing and / or finishing the Fibrous web with at least one nozzle, whose water jet onto the fibrous web is directed.
  • the fibrous web is cut while avoiding tearing or even tearing Cutting with water jet supported on the opposite side.
  • This Support is usually provided by a cutting table. It happens during operation to contaminate the supporting surfaces by the fibers or additives the fibrous web.
  • the high pressure of the water jet leads in the course of the Time to wear out the surfaces hit by the water jet.
  • the cutting table therefore often has an opening to the water jet Removal and suction of impurities and water.
  • the severed Strips are sucked into a discharge funnel supported by vacuum. This is especially with regard to keeping the cutting table clean and the discharge of the strip very expensive.
  • the object of the invention is therefore the construction of the cutting device Simplify at least consistent operational security.
  • the object was achieved in that the water jet cutting device about over a pulper to catch the separated Strip of the fibrous web is arranged.
  • the cutting device needed in this Position in the paper machine no discharge and / or vacuum systems.
  • the complex cutting table can thus be reduced to a support plate.
  • the Support plate is very simple and ensures during cutting sufficient support of the fibrous web in the cutting area, the Support plate has a recess for the water jet so that it is unimpeded can pass through.
  • the cut edge strip falls from the support plate after the cutting point down.
  • the cut strip should run from one Guide device preferably in the form of a guide plate and / or one Guide part of the support plate and / or a compressed air and / or one Water jet nozzle can be influenced.
  • the support plate should be as level as possible Form a sliding surface that runs approximately parallel to the fibrous web.
  • the Fiber web at least in the unloaded state with the water jet run a distance along the gusset. Because of the level and preferably smooth sliding surface remains a sliding of the fibrous web during Cutting without negative effects. It has proven to be advantageous if the distance between the fibrous web and the sliding surface of the support plate especially in the unloaded state in the range of 0 to 2 mm, preferably is between 0 and 0.5 mm.
  • the rejects and parts of the fibrous web are collected in the pulper and the Pulp preparation fed for recycling. Because the guide supports the feeding of the separated strip into the pulper elaborate suction devices for guiding the separated edge strip be saved.
  • the nozzle and / or the Support plate and / or the guide device adjustable in terms of their position be designed.
  • the water jet cutting device can free pull of the fibrous web, be arranged in the dryer section. in the The fibrous web runs freely without moving on a belt, a roller or support similar.
  • the installation position is particularly easy due to the pulper position at the end a drying group, preferably after the last drying cylinder Realize dryer group, which is why the water jet cutting device there too should be used. After removing the dryer from the The water jet cutting device can thus advantageously be used between the dryer group one, especially the last drying cylinder of the drying group and one following guide roller may be arranged.
  • the fibrous web 1 runs in a dryer section of a paper machine for drying the same mostly alternately via heated drying cylinders 4 and suction Guide rollers 11.
  • the fibrous web 1 is thereby at least one drying wire 8th the respective drying group, the fibrous web 1 with the Drying cylinders 4 comes into contact.
  • the moisture content of the fibrous web 1 decreases and the Firmness too.
  • the Water jet cutting device for use. Because of the increased strength of the Fibrous web 1, this can be done in the free pull of the fibrous web 1.
  • the fibrous web 1 comes into the area of the water jet cutting device, this between the drying cylinder 4 and one following guide roller 5 is arranged.
  • This water jet cutter consists essentially of a nozzle 2, which is arranged above the fibrous web 1 is and directs the water jet approximately perpendicular to the fibrous web 1. to The fibrous web 1 is supported on the opposite side Support plate 3.
  • This support plate 3 has a flat and smooth surface and is in unloaded state about 0.5 mm from the fibrous web 1. During the Cutting, however, the fibrous web 1 is pressed against the support plate 3.
  • the support plate 3 according to FIG. 2 has a recess 12 for the water jet.
  • the support plate 3 also includes a guide part 10, which the forwarding of the severed edge strip into the pulper 6 Dryer section supported.
  • the support plate 3 extends parallel to the run of the fibrous web 1, it offers no possibility of attaching fibers and other dirt.
  • the separated strip 7 is in the under Water jet cutting device arranged pulper 6 out of the dryer section.
  • the collected fibrous web remnants can thus be recycled become.
  • a compressed air or water nozzle 9 blows Strip 7 in the direction of pulper 6.
  • Adhesive to drying cylinder 4 Remains of fibrous web are also removed by a scraper 13 from the drying cylinder 4 away.
  • the fibrous web 1 After the water jet cutting device, the fibrous web 1 reaches one other area of the paper machine, for example for painting or smoothing the Fibrous web 1.
  • the water jet cutting device is very simple and saves because of the without a suction device Considering the continuous operation a lot of energy.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Shovels (AREA)
  • Details Of Cutting Devices (AREA)

Abstract

The cutter has at least one nozzle (2), the water jet of which is directed at the paper (1), and is located above a pulper (6) for catching the severed strip (7). In the cutting area, the paper web runs along a support plate (3) located opposite the nozzle. The plate forms a glide surface, which runs in parallel to the paper web. The web runs at a distance from the support plate, at least when not subjected to impact of the water jet. This distance is preferably 0.0 - 0.5 mm.

Description

Die Erfindung betrifft eine Wasserstrahl-Schneideinrichtung zum Trennen eines Streifens von einer laufenden Papier-, Karton-, Tissue- oder einer anderen Faserstoffbahn in einer Maschine zur Herstellung und/oder Veredlung der Faserstoffbahn mit zumindest einer Düse, deren Wasserstrahl auf die Faserstoffbahn gerichtet ist.The invention relates to a water jet cutting device for separating a Strip from a running paper, cardboard, tissue or other Fibrous web in a machine for producing and / or finishing the Fibrous web with at least one nozzle, whose water jet onto the fibrous web is directed.

Wegen des hohen Drucks des Wasserstrahls und der Gewährleistung eines sauberen Schnittes unter Vermeidung von Ein- oder gar Abrissen wird die Faserstoffbahn beim Schneiden mit Wasserstrahl auf der gegenüberliegenden Seite abgestützt. Diese Abstützung erfolgt meist durch einen Schneidtisch. Während des Betriebs kommt es zur Verschmutzung der stützenden Flächen durch die Fasern oder die Zusatzstoffe der Faserstoffbahn. Außerdem führt der hohe Druck des Wasserstrahls im Laufe der Zeit auch zum Verschleiß der vom Wasserstrahl getroffenen Flächen.Because of the high pressure of the water jet and ensuring a clean one The fibrous web is cut while avoiding tearing or even tearing Cutting with water jet supported on the opposite side. This Support is usually provided by a cutting table. It happens during operation to contaminate the supporting surfaces by the fibers or additives the fibrous web. In addition, the high pressure of the water jet leads in the course of the Time to wear out the surfaces hit by the water jet.

Gegenüber dem Wasserstrahl besitzt der Schneidtisch daher oft eine Öffnung zum Abführen und Absaugen der Verunreinigungen und des Wassers. Der abgetrennte Streifen wird dabei unterstützt durch Vakuum in einen Abführtrichter gesaugt. Dies ist insbesondere hinsichtlich der Sauberhaltung des Schneidtisches und der Abführung des Streifens sehr aufwendig.The cutting table therefore often has an opening to the water jet Removal and suction of impurities and water. The severed Strips are sucked into a discharge funnel supported by vacuum. This is especially with regard to keeping the cutting table clean and the discharge of the strip very expensive.

Die Aufgabe der Erfindung ist es daher den Aufbau der Schneideinrichtung bei zumindest gleichbleibender Betriebssicherheit zu vereinfachen.The object of the invention is therefore the construction of the cutting device Simplify at least consistent operational security.

Erfindungsgemäß wurde die Aufgabe dadurch gelöst, dass die Wasserstrahl-Schneideinrichtung etwa über einem Pulper zum Auffangen des abgetrennten Streifens der Faserstoffbahn angeordnet ist. Die Schneideinrichtung benötigt in dieser Position in der Papiermaschine keinerlei Abführ- und/oder Vakuumsysteme. According to the invention, the object was achieved in that the water jet cutting device about over a pulper to catch the separated Strip of the fibrous web is arranged. The cutting device needed in this Position in the paper machine no discharge and / or vacuum systems.

Der aufwendige Schneidtisch kann somit auf einem Stützblech reduziert werden. Das Stützblech ist sehr einfach aufgebaut und gewährleistet während des Schneidens eine ausreichende Abstützung der Faserstoffbahn im Schneidbereich, wobei das Stützblech eine Aussparung für den Wasserstrahl besitzt, so dass dieser ungehindert hindurchtreten kann.The complex cutting table can thus be reduced to a support plate. The Support plate is very simple and ensures during cutting sufficient support of the fibrous web in the cutting area, the Support plate has a recess for the water jet so that it is unimpeded can pass through.

Der abgeschnittene Randstreifen fällt nach dem Schneidpunkt vom Stützblech herunter. Nach dem Stützblech sollte der Lauf des abgetrennten Streifens von einer Führungseinrichtung vorzugsweise in Form eines Führungsbleches und/oder eines Führungsteiles des Stützblechs und/oder einer Druckluft- und/oder einer Wasserstrahl-Düse beeinflusst werden.The cut edge strip falls from the support plate after the cutting point down. After the gusset, the cut strip should run from one Guide device preferably in the form of a guide plate and / or one Guide part of the support plate and / or a compressed air and / or one Water jet nozzle can be influenced.

Um Beschädigungen der Faserstoffbahn zu verhindern und der Anlagerung von Verschmutzungen entgegen zu wirken, sollte das Stützblech eine möglichst ebene Gleitfläche bilden, die etwa parallel zur Faserstoffbahn verläuft.To prevent damage to the fibrous web and the accumulation of To counteract dirt, the support plate should be as level as possible Form a sliding surface that runs approximately parallel to the fibrous web.

Für eine einwandfreie Schnittqualität und eine stabilen Schneidvorgang sollte die Faserstoffbahn zumindest im unbelasteten Zustand durch den Wasserstrahl mit einem Abstand an dem Stützblech entlang laufen. Wegen der ebenen und vorzugsweise glatten Gleitfläche bleibt ein Gleiten der Faserstoffbahn während des Schneidens ohne negative Wirkung. Dabei hat es sich als vorteilhaft erwiesen, wenn der Abstand zwischen Faserstoffbahn und der Gleitfläche des Stützblechs insbesondere im unbelasteten Zustand im Bereich von 0 bis 2 mm, vorzugsweise zwischen 0 und 0,5 mm liegt.For a perfect cut quality and a stable cutting process, the Fiber web at least in the unloaded state with the water jet run a distance along the gusset. Because of the level and preferably smooth sliding surface remains a sliding of the fibrous web during Cutting without negative effects. It has proven to be advantageous if the distance between the fibrous web and the sliding surface of the support plate especially in the unloaded state in the range of 0 to 2 mm, preferably is between 0 and 0.5 mm.

Im Pulper werden der Ausschuss und Teile der Faserstoffbahn gesammelt und der Faserstoffaufbereitung zur Wiederverwertung zugeführt. Da die Führungseinrichtung die Zuführung des abgetrennten Streifens in den Pulper unterstützt, können aufwendige Saugeinrichtungen zur Führung des abgetrennten Randstreifens eingespart werden. The rejects and parts of the fibrous web are collected in the pulper and the Pulp preparation fed for recycling. Because the guide supports the feeding of the separated strip into the pulper elaborate suction devices for guiding the separated edge strip be saved.

Zur Anpassung an bestimmte Betriebsbedingungen sollten die Düse und/oder das Stützblech und/oder die Führungseinrichtung bezüglich ihrer Lage einstellbar gestaltet sein.To adapt to certain operating conditions, the nozzle and / or the Support plate and / or the guide device adjustable in terms of their position be designed.

Wegen der bereits erhöhten Festigkeit kann die Wasserstrahl-Schneideinrichtung im freien Zug der Faserstoffbahn, im Bereich der Trockenpartie angeordnet werden. Im freien Zug läuft die Faserstoffbahn ohne sich auf einem Band, einer Walze oder ähnlichem abzustützen.Because of the already increased strength, the water jet cutting device can free pull of the fibrous web, be arranged in the dryer section. in the The fibrous web runs freely without moving on a belt, a roller or support similar.

Besonders einfach lässt sich die Einbauposition aufgrund der Pulperposition am Ende einer Trockengruppe, vorzugsweise nach dem letzten Trockenzylinder der Trockengruppe realisieren, weshalb die Wasserstrahl-Schneideinrichtung auch dort eingesetzt werden sollte. Nach dem Wegführen des Trockensiebes der Trockengruppe kann so die Wasserstrahl-Schneideinrichtung mit Vorteil zwischen einem, insbesondere dem letzten Trockenzylinder der Trockengruppe und einer folgenden Leitwalze angeordnet sein.The installation position is particularly easy due to the pulper position at the end a drying group, preferably after the last drying cylinder Realize dryer group, which is why the water jet cutting device there too should be used. After removing the dryer from the The water jet cutting device can thus advantageously be used between the dryer group one, especially the last drying cylinder of the drying group and one following guide roller may be arranged.

Nachfolgend soll die Erfindung an einem Ausführungsbeispiel näher erläutert werden. In der beigefügten Zeichnung zeigt:

Figur 1:
eine schematische Seitenansicht einer im Einsatz befindlichen Wasserstrahl-Schneideinrichtung und
Figur 2:
eine Draufsicht des Stützbleches 3.
The invention will be explained in more detail below using an exemplary embodiment. The attached drawing shows:
Figure 1:
is a schematic side view of a water jet cutting device in use and
Figure 2:
a plan view of the support plate 3.

Die Faserstoffbahn 1 läuft in einer Trockenpartie einer Papiermaschine zur Trocknung derselben meist abwechselnd über beheizte Trockenzylinder 4 und besaugte Leitwalzen 11. Dabei wird die Faserstoffbahn 1 von zumindest einem Trockensieb 8 der jeweiligen Trockengruppe geführt, wobei die Faserstoffbahn 1 mit den Trockenzylindern 4 in Kontakt kommt.The fibrous web 1 runs in a dryer section of a paper machine for drying the same mostly alternately via heated drying cylinders 4 and suction Guide rollers 11. The fibrous web 1 is thereby at least one drying wire 8th the respective drying group, the fibrous web 1 with the Drying cylinders 4 comes into contact.

Während der Trocknung nimmt der Feuchtegehalt der Faserstoffbahn 1 ab und die Festigkeit zu. Zur Herstellung sauberer Ränder der Faserstoffbahn 1, kommt die Wasserstrahl-Schneideinrichtung zum Einsatz. Wegen der erhöhten Festigkeit der Faserstoffbahn 1 kann dies im freien Zug der Faserstoffbahn 1 erfolgen.During the drying, the moisture content of the fibrous web 1 decreases and the Firmness too. To produce clean edges of the fibrous web 1, the Water jet cutting device for use. Because of the increased strength of the Fibrous web 1, this can be done in the free pull of the fibrous web 1.

Dies ist relativ einfach am Ende einer und insbesondere wie in der Figur 1 gezeigt der letzten Trockengruppe möglich. Nach dem Wegführen des entsprechenden Trockensiebes 8 kommt die Faserstoffbahn 1 in den Bereich der Wasserstrahl-Schneideinrichtung, wobei diese zwischen dem Trockenzylinder 4 und einer folgenden Leitwalze 5 angeordnet ist. Diese Wasserstrahl-Schneideeinrichtung besteht im wesentlichen aus einer Düse 2, die über der Faserstoffbahn 1 angeordnet ist und den Wasserstrahl etwa senkrecht auf die Faserstoffbahn 1 richtet. Zur Abstützung der Faserstoffbahn 1 befindet sich auf der gegenüberliegenden Seite ein Stützblech 3. Dieses Stützblech 3 hat eine ebene und glatte Oberfläche und ist im unbelasteten Zustand etwa 0,5 mm von der Faserstoffbahn 1 entfernt. Während des Schneidens wird die Faserstoffbahn 1 jedoch an das Stützblech 3 gedrückt. Um ein Abspritzen zu verhindern, besitzt das Stützblech 3 gemäß Figur 2 eine Aussparung 12 für den Wasserstrahl. Das Stützblech 3 umfasst außerdem noch ein Führungsteil 10, welches die Weiterleitung des abgetrennten Randstreifens in den Pulper 6 der Trockenpartie unterstützt.This is relatively simple at the end of one and in particular as shown in FIG last drying group possible. After taking away the corresponding Dryer fabric 8, the fibrous web 1 comes into the area of the water jet cutting device, this between the drying cylinder 4 and one following guide roller 5 is arranged. This water jet cutter consists essentially of a nozzle 2, which is arranged above the fibrous web 1 is and directs the water jet approximately perpendicular to the fibrous web 1. to The fibrous web 1 is supported on the opposite side Support plate 3. This support plate 3 has a flat and smooth surface and is in unloaded state about 0.5 mm from the fibrous web 1. During the Cutting, however, the fibrous web 1 is pressed against the support plate 3. To a To prevent spraying, the support plate 3 according to FIG. 2 has a recess 12 for the water jet. The support plate 3 also includes a guide part 10, which the forwarding of the severed edge strip into the pulper 6 Dryer section supported.

Da sich das Stützblech 3 parallel zum Lauf der Faserstoffbahn 1 erstreckt bietet es keine Möglichkeit zur Anlagerung von Fasern und anderen Verschmutzungen.Since the support plate 3 extends parallel to the run of the fibrous web 1, it offers no possibility of attaching fibers and other dirt.

Nach dem Stützblech 3 wird der abgetrennte Streifen 7 in den unter der Wasserstrahl-Schneideinrichtung angeordneten Pulper 6 der Trockenpartie geführt. Die aufgefangenen Faserstoffbahnreste können so einer Wiederverwertung zugeführt werden.After the support plate 3, the separated strip 7 is in the under Water jet cutting device arranged pulper 6 out of the dryer section. The collected fibrous web remnants can thus be recycled become.

Um den Streifen 7 nach dem Stützblech 3 zu führen sind hier Führungseinrichtungen vorgesehen. Nach dem Stützblech 3 bläst eine Druckluft- oder Wasserdüse 9 den Streifen 7 in Richtung Pulper 6. Am Trockenzylinder 4 anhaftenden Faserstoffbahnreste werden außerdem von einem Schaber 13 vom Trockenzylinder 4 entfernt.In order to guide the strip 7 after the support plate 3 are guide devices here intended. After the support plate 3, a compressed air or water nozzle 9 blows Strip 7 in the direction of pulper 6. Adhesive to drying cylinder 4 Remains of fibrous web are also removed by a scraper 13 from the drying cylinder 4 away.

Nach der Wasserstrahl-Schneideinrichtung gelangt die Faserstoffbahn 1 in einen anderen Bereich der Papiermaschine beispielsweise zum Streichen oder Glätten der Faserstoffbahn 1.After the water jet cutting device, the fibrous web 1 reaches one other area of the paper machine, for example for painting or smoothing the Fibrous web 1.

Die Wasserstrahl-Schneideinrichtung ist sehr einfach aufgebaut und spart wegen der ohne eine Saugvorrichtung auskommenden Randstreifenabführung unter Berücksichtigung des Dauerbetriebs sehr viel Energie.The water jet cutting device is very simple and saves because of the without a suction device Considering the continuous operation a lot of energy.

Claims (10)

Wasserstrahl-Schneideinrichtung zum Trennen eines Streifens (7) von einer laufenden Papier-, Karton-, Tissue- oder einer anderen Faserstoffbahn (1) in einer Maschine zur Herstellung und/oder Veredlung der Faserstoffbahn (1) mit zumindest einer Düse (2), deren Wasserstrahl auf die Faserstoffbahn (1) gerichtet ist, dadurch gekennzeichnet, dass
die Wasserstrahl-Schneideinrichtung etwa über einem Pulper (6) zum Auffangen des abgetrennten Streifens (7) der Faserstoffbahn (1) angeordnet ist.Water jet cutting device for separating a strip (7) from a running paper, cardboard, tissue or other fibrous web (1) in a machine for producing and / or finishing the fibrous web (1) with at least one nozzle (2), whose water jet is directed onto the fibrous web (1), characterized in that
the water jet cutting device is arranged, for example, above a pulper (6) for catching the severed strip (7) of the fibrous web (1). Wasserstrahl-Schneideinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass
die Faserstoffbahn (1) im Schneidbereich an einem gegenüber der Düse (2) angeordneten Stützblech (3) entlang läuft.Water jet cutting device according to claim 1, characterized in that
the fibrous web (1) runs in the cutting area along a support plate (3) arranged opposite the nozzle (2). Wasserstrahl-Schneideinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass
das Stützblech (3) eine Gleitfläche bildet, die etwa parallel zur Faserstoffbahn (1) verläuft.Water jet cutting device according to claim 1 or 2, characterized in that
the support plate (3) forms a sliding surface which runs approximately parallel to the fibrous web (1). Wasserstrahl-Schneideinrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass
die Faserstoffbahn (1) zumindest im unbelasteten Zustand durch den Wasserstrahl mit einem Abstand an dem Stützblech (3) entlang läuft.Water jet cutting device according to one of the preceding claims,
characterized in that
the fibrous web (1) runs at least in the unloaded state by the water jet at a distance along the support plate (3). Wasserstrahl-Schneideinrichtung nach Anspruch 4, dadurch gekennzeichnet, dass
der Abstand zwischen Faserstoffbahn (1) und der Gleitfläche des Stützblechs (3) im Bereich von 0 bis 2 mm, vorzugsweise zwischen 0 und 0,5 mm liegt. Water jet cutting device according to claim 4, characterized in that
the distance between the fibrous web (1) and the sliding surface of the support plate (3) is in the range from 0 to 2 mm, preferably between 0 and 0.5 mm. Wasserstrahl-Schneideinrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass
der Lauf des abgetrennten Streifens (7) nach dem Stützblech (3) von einer Führungseinrichtung vorzugsweise in Form eines Führungsbleches und/oder eines Führungsteiles (10) des Stützbleches (3) und/oder einer Druckluftund/oder einer Wasserstrahl-Düse (9) beeinflusst wird.Water jet cutting device according to one of the preceding claims,
characterized in that
the course of the separated strip (7) after the support plate (3) is influenced by a guide device, preferably in the form of a guide plate and / or a guide part (10) of the support plate (3) and / or a compressed air and / or a water jet nozzle (9) becomes. Wasserstrahl-Schneideinrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass
die Düse (2) und/oder das Stützblech (3) und/oder die Führungseinrichtung in ihrer Lage einstellbar sind.Water jet cutting device according to one of the preceding claims,
characterized in that
the position of the nozzle (2) and / or the support plate (3) and / or the guide device can be adjusted. Wasserstrahl-Schneideinrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass
die Wasserstrahl-Schneideinrichtung im freien Zug der Faserstoffbahn (1), vorzugsweise im Bereich der Trockenpartie angeordnet ist.Water jet cutting device according to one of the preceding claims,
characterized in that
the water jet cutting device is arranged in the free pull of the fibrous web (1), preferably in the area of the dryer section. Wasserstrahl-Schneideinrichtung nach Anspruch 8, dadurch gekennzeichnet, dass
die Wasserstrahl-Schneideinrichtung am Ende einer Trockengruppe, vorzugsweise nach dem letzten Trockenzylinder (4) der Trockengruppe angeordnet ist.Water jet cutting device according to claim 8, characterized in that
the water jet cutting device is arranged at the end of a drying group, preferably after the last drying cylinder (4) of the drying group. Wasserstrahl-Schneideinrichtung nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass
die Wasserstrahl-Schneideinrichtung zwischen einem Trockenzylinder (4) und einer folgenden Leitwalze (5) angeordnet ist.Water jet cutting device according to claim 8 or 9, characterized in that
the water jet cutting device is arranged between a drying cylinder (4) and a following guide roller (5).
EP20030001815 2002-04-20 2003-01-29 Machine with water-jet cutting device Expired - Lifetime EP1354677B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002117723 DE10217723A1 (en) 2002-04-20 2002-04-20 Water jet cutting device
DE10217723 2002-04-20

Publications (3)

Publication Number Publication Date
EP1354677A2 true EP1354677A2 (en) 2003-10-22
EP1354677A3 EP1354677A3 (en) 2005-02-23
EP1354677B1 EP1354677B1 (en) 2007-08-22

Family

ID=28458947

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US (1) US7166194B2 (en)
EP (1) EP1354677B1 (en)
AT (1) ATE370822T1 (en)
CA (1) CA2425682A1 (en)
DE (2) DE10217723A1 (en)

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FI116664B (en) 2004-06-18 2006-01-31 Metso Paper Inc Method and apparatus of a paper or cardboard machine
DE102009056625B9 (en) * 2009-12-02 2011-05-12 Paprima Industries Inc., Dorval Extension device for an air guide box
US20110240706A1 (en) * 2010-03-30 2011-10-06 Brian Christopher Schwamberger Web diverting apparatus
US9217225B2 (en) 2012-02-28 2015-12-22 Paprima Industries Inc. Paper manufacturing
US8968519B2 (en) * 2013-03-14 2015-03-03 Georgia-Pacific Consumer Products Lp Sheet edge trimming and removal from a structured paper fabric
EP3020520B1 (en) * 2014-11-14 2018-01-03 HP Scitex Ltd Liquid nitrogen jet stream processing of paper, cardboards or carton
FR3085974B1 (en) 2018-09-14 2020-12-18 Oberthur Fiduciaire Sas METHOD OF MANUFACTURING A MATERIAL IN SHEET, MACHINE, SHEET MATERIAL AND CORRESPONDING SECURITY DOCUMENT
FI131085B1 (en) 2022-02-17 2024-09-17 Valmet Technologies Oy Method and system for producing fiber webs

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Also Published As

Publication number Publication date
DE10217723A1 (en) 2003-10-30
DE50307989D1 (en) 2007-10-04
EP1354677A3 (en) 2005-02-23
US20030196531A1 (en) 2003-10-23
EP1354677B1 (en) 2007-08-22
CA2425682A1 (en) 2003-10-20
US7166194B2 (en) 2007-01-23
ATE370822T1 (en) 2007-09-15

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