EP0870583A2 - Wasserstrahleinrichtung zum Besäumen der Längskanten zur Verwendung in einer Papiermaschine - Google Patents

Wasserstrahleinrichtung zum Besäumen der Längskanten zur Verwendung in einer Papiermaschine Download PDF

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Publication number
EP0870583A2
EP0870583A2 EP98106594A EP98106594A EP0870583A2 EP 0870583 A2 EP0870583 A2 EP 0870583A2 EP 98106594 A EP98106594 A EP 98106594A EP 98106594 A EP98106594 A EP 98106594A EP 0870583 A2 EP0870583 A2 EP 0870583A2
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EP
European Patent Office
Prior art keywords
water jet
web
station
effluent
further characterized
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EP98106594A
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English (en)
French (fr)
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EP0870583B1 (de
EP0870583A3 (de
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Roman C. Caspar
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Publication of EP0870583A3 publication Critical patent/EP0870583A3/de
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/006—Cutting the edges of the paper-web
    • 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
    • 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
    • B26F3/008—Energy dissipating devices therefor, e.g. catchers; Supporting beds therefor

Definitions

  • the present invention is directed to a water jet edge trimming apparatus for trimming the edge from a moving web in a papermaking machine. More specifically, the present invention is directed to a water jet edge trimmer system for trimming coated paper.
  • Coating can be done "on-machine” or "off-machine”. Coating on-machine means that the paper is made in the normal fashion and an additional coating station is provided such that the paper is coated as it travels in the papermaking process.
  • the "raw stock" paper is coated across the width of the web except for the edges of the paper where a trim of 0.5 to 3 inches of the paper web is not coated. Both sides of the paper web may be coated with plastic or paint products which can make up a significant part of the paper weight.
  • the uncoated edges must be trimmed off before processing the paper further, such processing involving calendering or supercalendering, for example.
  • This trimming step is typically done by means of a mating pair of rotary slitting knives. Slitting knives, or “slitters” are used to trim paper edges after the coating station thereby removing un-coated edges of the paper from the traveling web. Slitters are also employed up-stream of the coating station to cut the paper web prior to coating preventing cracked edges from entering the coater because coating of cracked edges leads to further complications.
  • Knives require high maintenance due to abrasive wear of the coating filler material, i.e. calcium carbonate or titanium dioxide.
  • slitter knives have a tendency to separate (jamming) when flying splices of overlapping paper sections joined together by tape having triple the basis weight pass by the knife slitters. Jamming leads to paper breaks.
  • slitter knives are very sensitive to paper wrinkles that enter the slitting zone resulting in edge tearing of the paper. Further, it is very difficult to enter the running paper web into the paired slitter knives without crimping the edge which can lead to web breaking.
  • the coating mass on the paper which contains calcium carbonate is splashed from the cutting surface back to the nozzle head and is also sprayed on other parts of the paper.
  • the fine particles of calcium lump together to form and build up extending down from the nozzle to the surface of the paper in a gummy "stalacite" type of deposit.
  • this "stalactite" type of deposit breaks off in a lump and travels on the boundary layer of the good paper web to the wind up station where the lumped particles are glued to the next layer of paper.
  • the glued together layers are ripped at the edge leading to complete web breaks across the paper web.
  • this will result in down time to re-splice and feed the tail of the paper web through the machine.
  • splattering of the calcium deposits on the boundary edge of the coated paper deteriorates paper quality.
  • the upper or second water jet is angled relative to the vertical axis or axis normal to the plane of the web to direct the second water jet towards the outside edge of the paper web such that the water jet forces the cut web edge away from the existing web to the outside of the cutting station.
  • the patent teaches that various angles relative to the vertical can be used by the second water jet as long as the jet is emitted directly downwardly and toward the outside edge.
  • a suitable angle is typically about 45 degrees.
  • Such a trimmer would not work in cutting coated paper because splashing from each water jet onto the other water jet is subject to the problems associated with the above noted trimming of coated paper on-machine.
  • U.S. patent 5,068,513 issued November 26, 1991 to Donald Gangemi teaches a water jet cutter that is used with a laser as a slitter.
  • the water jet cutter is angled rearwardly or upstream with respect to the direction of web travel.
  • the patent teaches that the relative orientation of the water jet nozzle and the laser is not deemed to be of critical importance so long as the water jet nozzle and the laser are focused at the same general spot on the traveling web.
  • Voith GmbH discloses the use of either rotary cutters, water jets or lasers to cut a tail in a paper by angling the resultant cut with a vector component in opposing direction to the direction of web travel and in a second direction into the center of the web away from the edge of the web. Again these patents are not concerned with backsplash and would be subject to waste deposit build upon the nozzle heads and laser heads.
  • the present invention is directed to a water jet cutting apparatus that is not subject to the problems associated with backsplash while trimming the edges of paper on-machine. While the present invention finds particular advantage in cutting coated paper on-machine, aspects of the present invention may find application in cutting and trimming other grades of paper web including webs of considerably less basis weight such as tissue paper where rewetting and redepositing of fines during trimming can cause deposit problems.
  • a water jet edge trimming station for trimming the edge of a traveling web in a papermaking machine.
  • the edge trimming station has a first novel characterizing feature by the manner in which effluent by-products associated with cutting the web are drawn below the cutting surface of the web to reduce backsplash and the manner in which a cutting station is constructed to withstand wear associated with paper striking the cutting station.
  • the water jet used to cut the paper is angled relative to the direction of paper web travel and the outside edge of the paper web travel.
  • angling of the water jet relative to the direction of paper web travel, and in particular the downstream direction it is meant that the water jet may face downstream in the direction of web travel and the waterjet cuts at an impact angle which in theory is the same as the exiting angle, but in practice the exiting angle is slightly less than impact angle when the jet is facing downstream due to the downstream speed of the traveling web.
  • the relative angling of the water jet is done with respect to a the vertical or normal axis passing through a plane of the web and the side edge of the web to reduce backsplash of effluent by-products onto the water jet nozzle.
  • the construction of the water jet cutting apparatus of the present invention has positive air pressure chamber surrounding the nozzle head of the water jet to maintain air flow over the nozzle head acting to drive away effluent deposits adversely affecting nozzle head performance.
  • a water jet edge trimming station for trimming an edge of a traveling web in a papermaking machine.
  • the station including a water jet apparatus supported above the web for directing a water jet towards a point of impingement against the web to cut through the web and form an edge trim piece separate from the web.
  • the water jet forms effluent by-products as it cuts the web.
  • the station including a support table positioned below the water jet and over which at least an edge portion of the web travels.
  • the support table including a cutting station.
  • the improvement is characterized by the cutting station having a hardened cutting surface to better withstand cutting and wearing associated with the paper striking the cutting surface.
  • the cutting surface includes an effluent receiving aperture positioned directly below the point of impingement of the water jet through which passes the water jet after cutting through the web.
  • the cutting station includes a negative pressure apparatus adapted to draw the water jet and the effluent by-products through the receiving aperture to accept the effluent by-products.
  • the effluent by-products can be removed from the papermaking machine. Backsplash onto the traveling web and nozzle head is diminished resulting in improved continued water jet cutting performance and paper quality.
  • the hardened cutting surface preferably comprises a ceramic shoe mounted raised above the support table by about 1 to 4 mm.
  • the effluent receiving aperture is located in the ceramic shoe. By raising the ceramic shoe or platform above the remainder of the cutting station, then only the ceramic shoe is exposed to wear. The use of a ceramic shoe improves longevity of the cutting station. Any suitable material can be used that can withstand the wear and cutting associated with the paper striking this surface and in particular over the vacuum assisted aperture.
  • the negative pressure apparatus of the cutting station preferably includes a draft tube extending from the effluent receiving aperture into the cutting station.
  • the cutting station includes a chamber into which the draft tube partially extends to define an outer passage surrounding the draft tube.
  • the chamber includes a water inlet and an air inlet adjacent the hardened cutting surface which permit the introduction of water and air into the outer passage surrounding the draft tube and extending into the cutting station.
  • the cutting station further includes a mixing zone located below the draft tube and the outer passage for mixing the air and water from the outer passage and effluent by-products from the draft tube.
  • the effluent receiving aperture is located a predetermined distance upstream of a downstream end of the cutting station so as to prevent buildup of effluent by-products on the hardened surface of the cutting station downstream of the effluent receiving aperture.
  • the predetermined distance is in the range of 5 to 50 mm and preferably about 40 mm.
  • the support table, on which the raised cutting station is mounted includes two platforms.
  • a first raised platform extends from the cutting station downstream for supporting the traveling web.
  • a second platform stepped down relative to, or lower than, the first platform also extends from the cutting station downstream for supporting the edge trim piece separated from the web.
  • an elongated slotted aperture is provided between the first and second platforms. The purpose of a slotted aperture is to provide an unsupported section in the web travel for the wet edges of the continuing traveling web and the traveling edge trim piece.
  • the open elongated slotted aperture allows the unsupported edges to dry and any effluent by-product carried by the wet edges does not find a surface against which effluent by-products can buildup ultimately effecting paper quality and the trimming function.
  • the trim chute is attached to the support table. It should be understood that in an alternative embodiment, the trim chute may be located further downstream separated from the support table. In such an embodiment, it is possible to separate the edge trim piece by means of air jets which also act to guide the edge trim piece to the destination trim chute.
  • a water jet edge trimming station for trimming an edge of a web in a paper machine where the web traveling past the station is relatively flat defining a web plane.
  • the water jet edge trimming station includes a water jet apparatus having a nozzle supported in spaced relation from the web plane for emitting a water jet along a water jet axis towards a point of impingement against the web to cut through the web and form an edge trim piece separate from the web.
  • the water jet forms effluent by-products as the water jet cuts the web.
  • the improvement is characterized by said water jet axis having a first orientation offset by a first predetermined angle relative to a normal axis extending at a right angle out of the web plane from the point of impingement such that the first orientation of the water jet directs the waterjet in a first direction relative to web surface travel to reduce backsplash of effluent by-products onto the nozzle.
  • the water jet axis has a second orientation rotated by a second predetermined angle about the normal axis from a line extending parallel to the direction of web travel passing through the point of impingement, whereby the water jet is directed towards the edge trim piece causing effluent by-products to move towards the edge trim piece and away from the web to reduce backsplash onto the nozzle and the web.
  • the first predetermined angle may be in the range of 15° to 45° and is preferably about 22° from the vertical.
  • the second predetermined angle may be in the range of 5° to 135°.
  • the preferred range for the second predetermined angle is in the range of 5° to 89° and the water jet is directed generally in a downstream direction.
  • the preferred second predetermined angle is about 30°.
  • the range of the second predetermined angle is between 91° to 135° and the water jet is directed in an upstream direction.
  • the first predetermined angle is to be chosen to cause the effluent by-products to move laterally towards the edge of the web without being blown back by boundary layer windage associated with the traveling web.
  • nozzle of the water jet within a predetermined distance from the traveling web to maintain a laminar jet of water to cut the web. Preferably, this distance is about 12 mm from the web.
  • auxiliary air nozzle positioned immediately upstream and laterally from the water jet for directing an air stream down on an edge of the traveling web to move the edge trim piece away from the traveling web and to further direct effluent by-products away from the traveling web.
  • a water jet apparatus for use in an edge trimming station for trimming an edge trim piece from a traveling web in a papermaking machine which produces effluent by-products during trimming.
  • the water jet includes a water jet nozzle head having a water inlet tube and a nozzle having an outlet orifice through which a water jet is emitted.
  • the improvement is characterized by an enlarged nozzle head housing being attached to the water jet nozzle head to define a chamber surrounding at least a portion of the water jet nozzle head.
  • the enlarged nozzle head housing has a front surface spaced from and surrounding the nozzle to define an air outlet passage around the nozzle.
  • the enlarged nozzle head housing includes an air inlet through which pressurized air enters the chamber and flows towards and out of the air outlet passage to counteract backsplash of the effluent by-products.
  • the enlarged nozzle head housing is preferably curved to guide the traveling web under the front surface to the water jet emitted from the outlet orifice.
  • an auxiliary air nozzle can extend around the outer surface of the front surface to direct an air stream across the web to the outside of the web direct effluent by-products away from the nozzle head and traveling web towards the edge trimmed.
  • the outlet orifice extends forward of the front surface of the enlarged nozzle head housing.
  • FIG. 1 there is shown a coating section 10 of a paper making machine.
  • a water jet edge trimming station or apparatus is shown generally at 12. It should be understood that the coating process occurs upstream of the trimming station 12. While the preferred application for the present invention is in the coating section of a paper making machine, the water jet trimming station 12 may be located in any portion of a papermaking machine that requires edge trimming. Furthermore, the present invention lends itself to applications where pronounced or large amounts of backsplash occur due to the water jet cutting through heavier grades of paper and/or coated paper.
  • FIG. 1 the web or paper web 14 is shown passing through water jet trimming station 12.
  • web 14 is threaded first by rope(s) 16.
  • a separator sheave 18 lifts the rope(s) 16 from the web 14 at first sheave 20.
  • the ropes 16 pass over roller 22 and again meet the web 14.
  • the trimming station 12 is supported on a base 21 and a movable carriage 26.
  • the movable carriage 26 moves back and forth in a direction across the width of the web 14 to allow an initial edge cut into the web 14 and subsequent slitting or edge trimming of the web 14.
  • Carriage 26 carries the support table 78 for the cutting station 13.
  • the trimming station 12 includes a water jet cutter 28 having a mushroom shaped head 30.
  • the water jet cutter 28 is supported above the web by an arm 38 connected to the carriage 26.
  • An operator guard 32 is provided for safety covering the water jet 48.
  • the water jet 48 is fed water from conduit 7.
  • Conduit 7 is connected to a controlled valve generally shown at 36.
  • Figures 3 and 5 show the water jet axis 48 being oriented by a first predetermined angle 62 and Figure 2 shows the water jet axis 48 being oriented by a second predetermined angle 58
  • Figure 3 is the best illustration showing the means for obtaining the first
  • Figure 2 for the second predetermined angles
  • Figure 4 is the best illustration to describe the orientation of the water jet axis 48.
  • the water jet cutter 28 includes a water jet nozzle body 33 through which the conduit or water inlet 7 is connected. At the other end of water jet nozzle body 33 is connected a jet nozzle retaining nut 45.
  • the jet nozzle retaining nut 45 has an outlet orifice 46 through which a laminar water jet is emitted along water jet axis 48.
  • the means for obtaining the angle orientation of water jet axis comprises angular bracket 40 surrounding the nozzle body 33 and connected by adjustment screw 42 to pin 44.
  • Pin 44 is pivotally connected to carry support plate 38 to carriage support plate 36 of the trimming station 12.
  • the pivot axis 44 allows adjustment of water jet axis 48 by the second predetermined angle.
  • the pivot screw 42 allows the water jet cutter 28 to be secured in place at the first predetermined angle and also adjustable sideways by slot 200.
  • the orientation of the water jet axis 48 is described relative to the first and second predetermined angles 62 and 58, respectively.
  • the direction of web 14 travel is shown generally by arrow 50.
  • the cross-direction of carriage travel is shown by arrow 49.
  • the arrows 49 and 50 define a relatively flat web plane passing by the trimming station.
  • the water jet axis 48 is directed at web 14 and cuts through web 14 at point of impingement 52. As the water jet cuts through the web it produces an edge trim piece 54 that is separated from the remainder of the web 14 continuing on its downstream travel of arrow 50.
  • the edge trim piece 54 moves past trimming station 12 and into trim chute 56.
  • the trim chute 56 is attached to the side of trimming station 12.
  • the orientation of the water jet axis 48 is shown angled by first predetermined angle 62 relative to normal axis 61.
  • Normal axis 61 is defined as a line extending at a right angle out of the web plane through point of impingement 52. This normal axis may be referred to as a vertical axis when the web plane is running horizontally past the trimming station 12.
  • the first predetermined angle 62 is shown to be about 22°. This angle may vary between 5° and 45°.
  • a broken line 57 extends parallel to the web travel 50 and edge of the web 55 upstream of the point of impingement 52. Broken line 57 is shown to pass through point of impingement 52 and lie on the web plane.
  • the second predetermined angle 58 is shown to be rotated about normal axis 61 from line 57.
  • the second predetermined angle may lie in the range of 5° to 135° and in the preferred embodiment shown is about 30°. This results in a generally downstream and cross-stream direction of angulation of water jet 48.
  • the angular rotation of water jet axis 48 about normal axis 61 on the web plane is shown by broken line 59.
  • broken line 63 extending parallel to axis 61 is shown.
  • the water jet is provided with a mushroom shaped head or cap shown generally at 64.
  • the mushroom head 64 forms part of an enlarged nozzle head housing 66 attached with a base plate or flange 68 to the water jet nozzle body 33. Forward of the base plate 68 is provided the mushroom front surface 64.
  • the curved surface 64 has an annular aperture spaced from the nozzle head 45 defining an air outlet passage 70.
  • the base plate 68 and mushroom shaped front surface cover 64 together form a chamber 72. Pressurized air is communicated into chamber 72 through air inlet tubing 74.
  • the pressurized air entering chamber 72 exits the chamber 72 at air outlet passage 70 around the nozzle head 45 causing a positive air flow pressure away from the outlet orifice 46 of the water jet 48. This positive air flow pushes potential effluent by-products away from the waterjet orifice 46 and nozzle head 45.
  • an additional air nozzle 75 ( Figure 2). Air nozzle 75 is connected to air supply 34 to blow additional air beside or across the cutting point of impingement 52 to move fog 60 downstream and away from the stream from the water jet orifice 46. Further, nozzle 75 directs the edge trim 54 immediately following the cut at the point of impingement 52 into the trim chute 56.
  • the waterjet 48 maintains a laminar flow to cut through the paper web 14.
  • this portion of the web may have three times the basis weight of the web 14 normally passing beneath the cutting jet.
  • the nozzle head of the water jet 48 is maintained at the predetermined distance above the web 14 to maintain the laminar flow of the water jet.
  • the outlet orifice 45 of the water jet cutter 28 is maintained about 12 mm from the web surface. As this is not a large distance and the effects of backsplash would result in limited operation of the water jet cutter 28 prior to cleaning if it were not for the features taught by the present invention.
  • the nozzle orifice has a diameter in the range of 0.07 to 0.153 mm.
  • the water jet has pressures in the order of 16,000 to 35,000 PSIG. This results in the waterjet hitting surface of the paper at speeds in excess of 615 meters/second.
  • the trimming station 12 includes a support table 78 over which at least an edge portion 77 of the web 14 travels.
  • the portion of the trimming station 12 located below the web 14 performs a novel function in waterjet cutting.
  • the purpose of the trimming station 12 below the web 14 is to evacuate effluent by-products downwardly away from the point of cutting impingement 52.
  • the trimming station 12 further includes a cutting station 13 mounted on a support table 78.
  • the cutting station 13 has a hardened cutting surface 82.
  • the surface 82 comprises a ceramic shoe mounted raised above the cutting station 13 of support table 78.
  • the cutting station 13 has beveled or sloped edge 79. Sloped edge 79 allows the paper web 14 to run up over the support table 78.
  • the ceramic surface 82 also has bevelled edges and is sufficiently hard to better withstand cutting and wear associated with the waterjet cutting and abrasiveness of coated paper.
  • the ceramic shoe 82 includes an effluent receiving aperture 84.
  • the ceramic shoe has an undercut or cut out 83 ( Figure 5) below the aperture 84 to minimize the amount of land area the jet is striking within the aperture. Because the effluent by-products contained in the waterjet have adhesive characteristics, the smaller the depth of the aperture 84 the less build-up of residues can occur in the aperture resulting in exhausting of the effluent by-products below the web. At the same time the wear resistance of the shoe must be maintained. In the preferred embodiment, it has been found that the depth of this aperture should be in the order of 2 to 4 mm.
  • the axis of the effluent receiving aperture 84 is preferably in alignment with the waterjet axis 48. It should be understood that the aperture could be cone shaped with a conical wall of the aperture lying parallel to the waterjet axis 48.
  • the cutting station 13 further includes a draft tube 88 connected in fluid flow communication with the effluent receiving aperture 84.
  • the draft tube 88 extends approximately 75 to 100mm into a mixing zone 90. The preferred extension of the draft tube is about 100mm.
  • the mixing zone 90 is connected to exhaust or a negative pressure apparatus 100( Figure 1).
  • Pipe 92 surrounds the draft tube 88 and is spaced from the draft tube 88.
  • An outer passage 94 is located between the pipe 92 and the draft tube 88.
  • Pipe 92 has an air inlet 98 and a water inlet 96.
  • An air control valve 85 controls the volume of air drawn from the environment.
  • Water valve 87 controls flow of water into inlet 96; together the valves 85 and 87 control negative pressure or vacuum in the mixing zone 90.
  • the mixing zone 90 is connected to exhaust 100( Figure 1)
  • the present invention diminishes the amount of fog or potential backsplash which would, otherwise remain below web 14 and cutting table 78 and could result in uneven buildup of by-products effecting function of the edge trimmer.
  • the aperture 84 at point of impingement 52 is located a distance 110 upstream from the downstream end 122 of the cutting station 13. This distance 110 is about 40mm.
  • the cutting station 13 in addition to the raised ceramic shoe 82 includes a first raised platform 126 extending downstream of the cutting station 13.
  • the station 13 further includes a lower initially or stepped down second platform 128.
  • the platforms 126 and 128 are at the same height close to the ceramic shoe 82.
  • Platform 128 curves and is offset below platform 126 in the direction of web travel. Platforms 126 and 128 are separated by an elongated slotted aperture 130.
  • the purpose of the platform 126 is to temporarily support the traveling web 14 and the purpose of the second platform 126 is to temporarily support the edge trim piece 54 prior to disposal in the trim chute 56.
  • the raising of the first platform 126 relative to the second platform 128 provides for better separation of the edge trim piece 54 from the coated web 14.
  • the elongated slotted aperture 130 provides an open space between the platforms 126 and 128 over which the wet edges 132 and 134, respectively, of the cut web 14 and edge trim piece 54 are allowed to dry so that effluent by-products do not build up on a surface effecting paper quality and the trimming operation.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP98106594A 1997-04-07 1998-04-07 Wasserstrahleinrichtung zum Besäumen der Längskanten zur Verwendung in einer Papiermaschine Expired - Lifetime EP0870583B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002201990A CA2201990C (en) 1997-04-07 1997-04-07 Water jet edge trimming station for use in papermaking machine
CA2201990 1997-04-07

Publications (3)

Publication Number Publication Date
EP0870583A2 true EP0870583A2 (de) 1998-10-14
EP0870583A3 EP0870583A3 (de) 1999-01-13
EP0870583B1 EP0870583B1 (de) 2002-07-10

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EP98106594A Expired - Lifetime EP0870583B1 (de) 1997-04-07 1998-04-07 Wasserstrahleinrichtung zum Besäumen der Längskanten zur Verwendung in einer Papiermaschine

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EP (1) EP0870583B1 (de)
AT (1) ATE220364T1 (de)
CA (1) CA2201990C (de)
DE (1) DE69806428T2 (de)

Cited By (15)

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Publication number Priority date Publication date Assignee Title
WO2001068976A1 (en) * 2000-03-16 2001-09-20 Metso Paper, Inc. Method for cutting an edge ship of a continuous web
WO2002016693A1 (en) * 2000-08-22 2002-02-28 Upm-Kymmene Corporation Method and device for cutting the edge of paper web
WO2002033169A1 (en) * 2000-10-19 2002-04-25 Metso Paper Karlstad Ab Protective arrangement in web cutting
EP1238764A2 (de) * 2001-03-07 2002-09-11 Paprima Industries Inc. Wasserstrahleinrichtung zum Randbeschneiden mit integrierter Abfallstreifenschurre
WO2003064124A1 (en) * 2002-01-31 2003-08-07 Paprima Industries Inc. Water jet edge cutter with integral trim chute
WO2006067260A1 (en) * 2004-12-23 2006-06-29 Es-Systems Oy Method for cutting of paper web
WO2008119156A1 (en) * 2007-03-29 2008-10-09 Magna International Inc. Method and system for processing a headliner
WO2011121390A1 (de) * 2009-12-02 2011-10-06 Paprima Industries Inc. Verlängerungseinrichtung für einen luftleitkasten
DE102010056576A1 (de) * 2010-12-30 2012-07-05 Paprima Industries Inc. Vorrichtung und Verfahren zum Schneiden einer Materialbahn
WO2013127008A1 (en) * 2012-02-28 2013-09-06 Paprima Industries Inc. Paper manufacturing
US8808504B2 (en) 2009-12-21 2014-08-19 Paprima Industries Inc. Cleaning apparatus
DE102014220647A1 (de) * 2014-10-13 2015-12-03 Voith Patent Gmbh Wasserstrahl-Schneideinrichtung
EP2971345A4 (de) * 2013-03-15 2016-12-21 Georgia Pacific Consumer Products Lp Folienkantenschneider und entfernung aus einem strukturierten papiergewebe
WO2018236264A1 (en) * 2017-06-21 2018-12-27 Valmet Aktiebolag PAPER MACHINE AND METHOD FOR CUTTING A FIBROUS BAND IN A PAPER MACHINE
DE102020111197A1 (de) 2020-04-24 2021-10-28 Voith Patent Gmbh Wasserstrahl-Schneideinrichtung

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Publication number Priority date Publication date Assignee Title
DE10260847A1 (de) * 2002-12-23 2004-07-01 Voith Paper Patent Gmbh Verfahren zur Herstellung und/oder Behandlung einer Materialbahn
DE102009003150A1 (de) 2009-05-15 2010-11-18 Voith Patent Gmbh Längsschneideeinrichtung für eine laufende Faserstoffbahn
CN108922866B (zh) * 2018-09-13 2023-10-13 环维电子(上海)有限公司 切割盘以及切割机台

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US3877334A (en) * 1973-11-23 1975-04-15 Gerber Garment Technology Inc Method and apparatus for cutting sheet material with a fluid jet
FR2647049A1 (fr) * 1989-05-18 1990-11-23 Grudzinski Richard Procede de decoupe de materiaux utilisant un jet de liquide volatil
WO1997011814A1 (en) * 1994-03-31 1997-04-03 Enfoplan Oy A method and apparatus for cutting the edge of a moving paper web

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WO2001068976A1 (en) * 2000-03-16 2001-09-20 Metso Paper, Inc. Method for cutting an edge ship of a continuous web
WO2002016693A1 (en) * 2000-08-22 2002-02-28 Upm-Kymmene Corporation Method and device for cutting the edge of paper web
WO2002033169A1 (en) * 2000-10-19 2002-04-25 Metso Paper Karlstad Ab Protective arrangement in web cutting
EP1238764A2 (de) * 2001-03-07 2002-09-11 Paprima Industries Inc. Wasserstrahleinrichtung zum Randbeschneiden mit integrierter Abfallstreifenschurre
EP1238764A3 (de) * 2001-03-07 2003-01-02 Paprima Industries Inc. Wasserstrahleinrichtung zum Randbeschneiden mit integrierter Abfallstreifenschurre
US6681670B2 (en) 2001-03-07 2004-01-27 Paprima Industries Inc. Water jet edge cutter with integral trim chute
WO2003064124A1 (en) * 2002-01-31 2003-08-07 Paprima Industries Inc. Water jet edge cutter with integral trim chute
WO2006067260A1 (en) * 2004-12-23 2006-06-29 Es-Systems Oy Method for cutting of paper web
WO2008119156A1 (en) * 2007-03-29 2008-10-09 Magna International Inc. Method and system for processing a headliner
US9221404B2 (en) 2007-03-29 2015-12-29 Magna International Inc. Method and system for processing a headliner
WO2011121390A1 (de) * 2009-12-02 2011-10-06 Paprima Industries Inc. Verlängerungseinrichtung für einen luftleitkasten
US10626556B2 (en) 2009-12-02 2020-04-21 Paprima Industries Inc. Extension device for an air guide box
US8808504B2 (en) 2009-12-21 2014-08-19 Paprima Industries Inc. Cleaning apparatus
DE102010056576A1 (de) * 2010-12-30 2012-07-05 Paprima Industries Inc. Vorrichtung und Verfahren zum Schneiden einer Materialbahn
DE102010056576B8 (de) * 2010-12-30 2015-05-07 Paprima Industries Inc. Papierherstellungsmaschine und Verfahren zum Herstellen von Papier
DE102010056576B4 (de) * 2010-12-30 2015-03-19 Paprima Industries Inc. Papierherstellungsmaschine und Verfahren zum Herstellen von Papier
US9217225B2 (en) 2012-02-28 2015-12-22 Paprima Industries Inc. Paper manufacturing
WO2013127008A1 (en) * 2012-02-28 2013-09-06 Paprima Industries Inc. Paper manufacturing
EP2971345A4 (de) * 2013-03-15 2016-12-21 Georgia Pacific Consumer Products Lp Folienkantenschneider und entfernung aus einem strukturierten papiergewebe
DE102014220647A1 (de) * 2014-10-13 2015-12-03 Voith Patent Gmbh Wasserstrahl-Schneideinrichtung
WO2018236264A1 (en) * 2017-06-21 2018-12-27 Valmet Aktiebolag PAPER MACHINE AND METHOD FOR CUTTING A FIBROUS BAND IN A PAPER MACHINE
CN110770395A (zh) * 2017-06-21 2020-02-07 维美德股份公司 造纸机和在造纸机中切割纤维幅材的方法
EP3610065A4 (de) * 2017-06-21 2021-01-20 Valmet Aktiebolag Papiermaschine und verfahren zum schneiden einer faserbahn in einer papiermaschine
EP3610065B1 (de) 2017-06-21 2022-03-09 Valmet Aktiebolag Papiermaschine und verfahren zum schneiden einer faserbahn in einer papiermaschine
CN110770395B (zh) * 2017-06-21 2022-04-15 维美德股份公司 造纸机和在造纸机中切割纤维幅材的方法
US11530515B2 (en) 2017-06-21 2022-12-20 Valmet Aktiebolag Paper making machine and a method of cutting a fibrous web in a paper making machine
DE102020111197A1 (de) 2020-04-24 2021-10-28 Voith Patent Gmbh Wasserstrahl-Schneideinrichtung

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EP0870583B1 (de) 2002-07-10
ATE220364T1 (de) 2002-07-15
CA2201990C (en) 2005-10-18
DE69806428D1 (de) 2002-08-14
CA2201990A1 (en) 1998-10-07
EP0870583A3 (de) 1999-01-13
DE69806428T2 (de) 2003-01-16

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