EP0684338B1 - Porte-lame - Google Patents

Porte-lame Download PDF

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Publication number
EP0684338B1
EP0684338B1 EP95107240A EP95107240A EP0684338B1 EP 0684338 B1 EP0684338 B1 EP 0684338B1 EP 95107240 A EP95107240 A EP 95107240A EP 95107240 A EP95107240 A EP 95107240A EP 0684338 B1 EP0684338 B1 EP 0684338B1
Authority
EP
European Patent Office
Prior art keywords
blade
blade holder
accordance
holder
positioning device
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
EP95107240A
Other languages
German (de)
English (en)
Other versions
EP0684338A2 (fr
EP0684338A3 (fr
Inventor
Günter Dr. Halmschlager
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 Sulzer Papiertechnik 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 Sulzer Papiertechnik Patent GmbH filed Critical Voith Sulzer Papiertechnik Patent GmbH
Publication of EP0684338A2 publication Critical patent/EP0684338A2/fr
Publication of EP0684338A3 publication Critical patent/EP0684338A3/fr
Application granted granted Critical
Publication of EP0684338B1 publication Critical patent/EP0684338B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
    • D21H25/10—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with blades
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G3/00—Doctors
    • D21G3/005—Doctor knifes

Definitions

  • the invention relates to a device for arranging a Blade (blade holder) on a transport device a web, in particular on a roller or a Drying cylinder of a paper machine, in which the in a Blade clamping device held across the blade Direction of movement of a web can be brought, the Blade clamping device on one transversely to Blade support bar extending web direction is, and a support member with a first pivot bearing a frame and with a second pivot bearing on the Blade support beam is articulated.
  • a blade holder for example coating a web, especially a paper web, with coating slip by a Squeegee with a layer thickness that is as uniform as possible should be achieved.
  • Another possible use is the use in the production of crepe paper, in the a web of goods on a conveyor roller arranged scraper comes up to thereby the for crepe paper to create typical structure. In both cases the paper quality largely depends on the contact pressure of the Blade on the web or on the transport device as well as the size of the blade working angle.
  • a blade holder is known in which the Arrangement of a blade of a squeegee by two rotary movements of one Blade support bar by one perpendicular to the transport direction extending pivot or rotation axis is reached.
  • this blade holder has two Actuators with screw drives, which by means of a clutch and a Bevel gear can be connected to each other.
  • this constructively relative Elaborate blade holder can be the contact pressure and Blade working angles can be varied independently of each other.
  • US-A-4 919 756 has features 1 to 1.5 of claim 1, among others on. With this device, however, is a positioning of the blade after one Regrinding is not quick and easy to carry out.
  • the blade should be positioned easier and faster than with previously known from the prior art to be arranged again on the transport device. In doing so the positioning of the blade easier and faster than in previously known from the prior art Blade holders can be made.
  • the task is characterized by the characteristic features of the Claim 1 solved.
  • the support member with the second pivot bearing hinged on a lever so that the Blade holder with one with the lever and the Support element connected pivot device is provided through which the blade support beam from an operating position at a greater distance from the roller Maintenance position can be pivoted, the Swiveling movement by changing the distance of the Articulation points of the swivel device on the lever and the Carrying element takes place.
  • the Frame and the support element connected Positioning device for setting a Blade working angle provided, the positioning the blade by changing the distance between the two Articulation points of the positioning device on the frame and the support element takes place.
  • the distance, which is also zero can be the blade support beam from the
  • the transport device is enlarged by the Swivel device, the distance of their articulation points the lever and the support element by a certain amount enlarged. This can be done by using a print medium acted upon cylinder of the pivoting device preferred embodiment, for example one Pneumatic cylinder. After the maintenance work are carried out on the blade, the distance of the two articulation points back to the original amount decreased. With this blade holder must therefore Change from the operating position to the maintenance position and back to the operating position, only each a translatory movement of the same length be carried out. Due to the below explained interaction of the components of the invention shows the blade again after these two movements same blade working angle as before.
  • a Blade holder according to the invention is thus characterized one by simple operation. On the other hand such translational movements relatively quickly and also very precisely executable, for example with the one already pneumatic cylinder mentioned above.
  • Tip of the blade in the axis of rotation of the first pivot bearing can be arranged. This can be done constructively this way be realized that the axis of rotation of the pivot bearing on a radius on which the blade is at its Movement from the maintenance position to the operating position emotional.
  • the blade holder according to the invention is with corresponding control signals, for example, from a control panel, remotely controlled can be transferred to the maintenance and operating position. As well is a remote controlled setting of the Blade working angle achievable.
  • the blade holder according to the invention shown in Figure 1 is on a front face shown in sections rotating roller 1 one clockwise Paper machine arranged for the production of crepe paper.
  • a second (mirror image) Blade holder according to the invention which the in Fig.1 shown corresponds.
  • Between the two Blade holders is a perpendicular to that Drawing plane, along the surface of the roller 1 extending blade support beam 2 attached.
  • How to the blade holder also shows Support element 3, a lever 4 and shown interrupted a fixed frame 5.
  • the arrangement of these elements is made so that the line of sight Illustration in Figure 1 of the lever 4 in front of the support element 3 and this in turn is arranged in front of the blade support beam 2.
  • the end face 6 of the blade support beam 2 and the surface 7 of the frame 5 are approximately at the same height.
  • the support element 3 starting from a foot part 8, two approximately perpendicularly aligned support arms 9, 10 on. Between the support element 3 and the frame 5 is located as a positioning device 14 Screw drive 15. This is from a not shown Electric motor driven and is between a pivot point 16 on the frame 5 and a pivot point 17 on the first Support arm 9 of the support element 3 along an (imaginary) Connecting line 18 of the two articulation points 16, 17 arranged.
  • the screw drive 15 is in each case the two pivot points 16, 17 rotatably attached.
  • the first pivot bearing 20 is the support element 3 with its second support arm 10 also pivotable on the frame 5 attached (see especially Fig. 2).
  • the Blade support beam 2 which is rigidly connected to the lever 4 is rotatable and axially displaceable in a second bearing (not shown here) in the foot part 8 of the support element 3 stored.
  • a swivel device 24 Between a pivot point 22 in the area of other end of the lever 4 and another articulation point 23 is located on the first support arm 9 of the support element 3 a swivel device 24.
  • the connecting line 26 has a greater distance from the pivot bearing 21 on as the connecting line 18.
  • the pneumatic cylinder 25 in each case attached rotatably about its two articulation points 22, 23.
  • the frame 5, in which the axis of rotation, not shown the roller 1 is mounted, has at its lower end with a threaded bolt 27 adjustable tab 28.
  • On the tab 28 of the frame 5 is the articulation point 16 of the positioning device 14 and the first pivot bearing 20 of the support element 3.
  • By turning the threaded bolt 27 can the distance between the pivot point 16 and the first Swivel bearing 20 along the circumferential line of the roller 1 a displacement axis can be changed.
  • distance is in this context, the projection of the in the Figures actually spaced in to understand the drawing levels of FIGS. 1-3.
  • the blade support beam 2 which is shown in the Embodiment around a support beam of a scraper 30 is together with the support element 3 and the lever 4th stored in the second pivot bearing 21. He can do that Axis of the second pivot bearing 21 relative movements run against the support element 3. Opposite the lever 4, the blade support beam 2 is arranged in a rotationally fixed manner.
  • the contact pressure of the on the blade support beam 2 located scraper 30 can not with a illustrated, per se from the prior art previously known, blade clamping device can be varied. This happens because the scraper 30 along its entire length (perpendicular to the drawing plane) and thus a bending force in the direction of the roller 1 arises.
  • Fig. 2 Before using the blade holder for the first time they are in a maintenance position as shown in Fig. 2 is shown.
  • the axis of the first Swivel bearing 20 using the threaded bolt 27 so been adjusted so that it, as Fig.2 shows, immediately located above the circumference of the roller 1.
  • the Scraper 30 attached to the blade support beam 2 and on it causes a predetermined contact pressure Bending force is applied, it is activated by pressing the Swivel device 24 in an operating position on the Roller 1 arranged.
  • the sharp edge, or in the Representations of the figures the blade tip the scraper 30 is aligned with the axis of rotation of the second Swivel bearing 21.
  • the second, not shown on the other end of the roller 1 arranged according to the invention Blade holder is always in the same way aligned like the blade holder shown.
  • To the Swivel blade support beam 2 lead the two Blade holders also always synchronously same movements out.
  • the frame 3 together with the blade support beam 2 around the blade tip be pivoted.
  • the positioning device 14 for use.
  • the Screw drive 15 of the positioning device 14 in the manner actuated that the distance between the two pivot points 16, 17 by one corresponding to the new blade working angle Amount increased.
  • This rotates the support member 3 in Counterclockwise direction around the first pivot bearing 20.
  • the lever follows this movement. This requires a total of a rotary movement of the blade support beam 2, also counterclockwise, just around the first Swivel bearing 20 result.
  • the blade tip is aligned with the axis of the first pivot bearing 20. This has to Consequence that the blade support beam 2 around The tip of the blade rotates, which after the end of the Movement sets the new blade working angle. It there is a functional connection between the respective distance of the articulation points and the thereby conditional blade working angle.
  • the scraper 30 is in this maintenance position Blade holder accessible from the side and can if necessary, be exchanged for another. If it is still possible due to the state of wear however, the scraper 30 is preferably reground. However, the width of the scraper 30 is reduced. So that the blade tip despite different widths of the Scraper 30 always in the axis of the first pivot bearing 20th can be brought, the scraper 30 is supported with his at one end not opposite the blade tip illustrated, adjustable stop surface. With the Stop bar can be of different widths Compensate scraper 30. After the scraper 30 is on the blade support beam 2 again in the intended Arrangement is made by original Pressurizing the pneumatic cylinder 25 the distance of the two articulation points 22, 23 again on the original amount decreased.
  • the lever 4 and the Blade support beam 2 thereby rotate in Counterclockwise around the second pivot bearing 21 along the same way back to their original arrangement, the operating position.
  • the blade support beam is on the roller 1 with the same blade working angle and Contact pressure arranged as before.
  • Embodiments of the invention can also be provided that the rigidity of each on one of the end faces of the roller arranged blade holders according to the invention by mechanical cross connections, for example one Cross strut, is enlarged. It is also possible manually actuated trapezoidal lead screws instead of Provide electric drives for the screw drives.

Landscapes

  • Paper (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Cleaning In Electrography (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Nonmetal Cutting Devices (AREA)

Claims (11)

  1. Support de lame pour disposer une lame contre une installation de transport d'une bande de produit, notamment contre un cylindre ou un cylindre sécheur d'une machine à papier ayant les caractéristiques suivantes :
    1.1 une lame tenue dans une installation de serrage de lame est susceptible d'être positionnée transversalement à la direction de circulation d'une bande de produit, l'installation de serrage de lame étant prévue sur une poutre de support de lame s'étendant transversalement à la direction de circulation de la bande;
    1.2 un élément de support avec un premier palier basculant est articulé sur un châssis et avec un second palier basculant sur la poutre de support de lame;
    1.3 l'élément de support (3) comprend deux bras de support (9, 10) faisant entre eux un angle, le second bras de support (10) de l'élément de support étant monté à rotation dans un premier palier basculant (20) sur la patte (28),
    1.4 sur l'élément de support (3) est prévue une poutre porte-lame (2), basculante et effectuant un mouvement de va et vient transversalement à la direction de la trajectoire, et cet élément est muni d'une installation de basculement (24) qui permet de basculer la poutre de support de lame (2) d'une position de fonctionnement à une position d'entretien avec une distance plus grande par rapport au cylindre (1), le mouvement de basculement étant exécuté par variation de la distance des points d'articulation (22, 23) de l'installation de basculement (24) sur le levier (4) et le premier bras de support (9) de l'élément de support;
    1.5 le support de lame est muni d'une installation de positionnement (14) reliée au châssis (5) et à l'élément de support (3) pour régler un angle de travail de lame, le positionnement de la lame se faisant par variation de la distance des deux points d'articulation (16, 17) dans l'installation de positionnement (14) sur le châssis (5) et l'élément de support (3);
    1.6 l'installation de positionnement (14) est prévue entre l'élément de support (3) et le châssis (5);
    1.7 l'installation de positionnement (14) est réglable par télécommande;
    1.8 l'angle de travail de lame, chaque fois actuel peut être saisi par un capteur et transformé en un signal approprié.
  2. Support de lame selon la revendication 1,
    caractérisé en ce que
    la pointe de la lame se trouve sur l'axe de rotation du premier palier de basculement (20).
  3. Support de lame selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la distance d'une ligne géométrique passant par les points d'articulation (22, 23) de l'installation de basculement (24) et du second palier de basculement (21), en position de fonctionnement et en position d'entretien est supérieure à la distance d'une ligne de liaison des points d'articulation (16, 17) de l'installation de positionnement (14).
  4. Support de lame selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la distance du point d'articulation (16) de l'installation de positionnement (14) par rapport à la surface enveloppe du cylindre (1) se règle sur le châssis (5).
  5. Support de lame selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'installation de basculement (24) comporte un cylindre recevant un fluide sous pression.
  6. Support de lame selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'installation de positionnement (14) comporte un entraínement à vis (15).
  7. Support de lame selon la revendication 6,
    caractérisé en ce que
    l'entraínement à vis (15) est un entraínement à fil trapézoïdal ou un entraínement à bille.
  8. Support de lame selon l'une quelconque des revendications 6 ou 7,
    caractérisé en ce que
    l'entraínement à vis (15) est entraíné par un moteur électrique.
  9. Support de lame selon la revendication 8,
    caractérisé en ce que
    les signaux correspondant à chaque angle de travail de lame, instantané sont fournis à une installation de régulation qui permet d'effectuer une compensation entre un dispositif de consigne et un dispositif réel d'une poutre de support de lame.
  10. Support de lame selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les leviers (4) et bras de support (9) qui se correspondent sur les deux côtés de l'installation de transport peuvent être couplés mécaniquement pour ne nécessiter un entraínement que d'un côté.
  11. Support de lame selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les mouvements de pivotement de la poutre de support de lame (2) sont réalisés exclusivement comme des mouvements à montage axial sans guidage de glissement.
EP95107240A 1994-05-27 1995-05-12 Porte-lame Expired - Lifetime EP0684338B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4418464 1994-05-27
DE4418464A DE4418464C2 (de) 1994-05-27 1994-05-27 Klingenhalterung

Publications (3)

Publication Number Publication Date
EP0684338A2 EP0684338A2 (fr) 1995-11-29
EP0684338A3 EP0684338A3 (fr) 1997-04-23
EP0684338B1 true EP0684338B1 (fr) 1999-09-29

Family

ID=6519064

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95107240A Expired - Lifetime EP0684338B1 (fr) 1994-05-27 1995-05-12 Porte-lame

Country Status (5)

Country Link
US (1) US5868841A (fr)
EP (1) EP0684338B1 (fr)
AT (1) ATE185177T1 (fr)
DE (2) DE4418464C2 (fr)
ES (1) ES2138107T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE505667C2 (sv) * 1996-01-09 1997-09-29 Btg Kaelle Inventing Ab Schaberhållare
DE29707991U1 (de) * 1997-05-03 1997-07-03 Emwe Gmbh Vorrichtung zum Messen der relativen Positionierung einer Schaberklinge zu einer Walze einer Papiermaschine
DE19841637A1 (de) * 1998-09-11 2000-03-16 Voith Sulzer Papiertech Patent Schaber
FI114557B (fi) * 2003-03-14 2004-11-15 Metso Paper Inc Palkin sisältävä paperikoneen käsittelylaitteisto
DE202017102719U1 (de) * 2017-05-08 2017-06-07 Valmet Technologies Oy Vorrichtung zur Bewegung eines Tragbalkens

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2698453A (en) * 1952-09-11 1955-01-04 Blaw Knox Co Holder for interchangeably supporting knives against the periphery of revolving drums
US3070066A (en) * 1957-08-06 1962-12-25 Time Inc Coating apparatus having blade control means and releasable blade holder
US3031703A (en) * 1960-03-10 1962-05-01 Dominion Foundries & Steel Continuous strip wiping apparatus
US3065487A (en) * 1960-11-21 1962-11-27 Vickerys Ltd Doctors for paper making machines
US3113890A (en) * 1961-06-26 1963-12-10 Kimberly Clark Co Apparatus for smoothing coating materials on a paper web
US3128207A (en) * 1961-09-07 1964-04-07 Beloit Iron Works Trailing blade coater blade loading mechanism
US3361059A (en) * 1965-03-11 1968-01-02 Donnelley & Sons Co Doctor blade for rotogravure cylinder
US3359940A (en) * 1965-09-17 1967-12-26 Beloit Corp Blade holding mechanism for coaters
DE2825907B2 (de) * 1978-06-13 1981-02-26 Jagenberg-Werke Ag, 4000 Duesseldorf Vorrichtung zum Aufbringen einer Beschichtung auf eine Materialbahn
DE2845036A1 (de) * 1978-10-16 1980-04-17 Jagenberg Werke Ag Vorrichtung zum kontinuierlichen gleichzeitigen aufbringen von beschichtungen konstanter dicken auf beide seiten einer materialbahn
DE3311999A1 (de) * 1983-04-02 1984-10-11 J.M. Voith Gmbh, 7920 Heidenheim Streicheinrichtung zur beschichtung laufender warenbahnen
DE3513063A1 (de) * 1985-04-12 1986-10-16 Jagenberg AG, 4000 Düsseldorf Streicheinrichtung zur beschichtung von entlang einer gegenwalze gefuehrten warenbahn, insbesondere papierbahnen
DE3825816A1 (de) * 1988-07-29 1990-02-01 Jagenberg Ag Vorrichtung zum kontinuierlichen beschichten einer um eine gegenwalze gefuehrten materialbahn
US4919756A (en) * 1988-08-26 1990-04-24 The Procter & Gamble Company Method of and apparatus for compensatingly adjusting doctor blade
FI886062A (fi) * 1988-12-30 1990-07-01 Valmet Paper Machinery Inc Vinkelkompensationsanordning foer schaberblad.
SE469034B (sv) * 1991-09-02 1993-05-03 Valmet Karlstad Ab Anordning foer justering av kraeppningsbetingelserna
SE469035B (sv) * 1991-09-16 1993-05-03 Valmet Karlstad Ab Foerfarande och anordning foer justering av kraeppningsbetingelserna
US5512139A (en) * 1993-12-08 1996-04-30 Beloit Technologies, Inc. Method and device for making tissue
US5507917A (en) * 1994-05-24 1996-04-16 Beloit Technologies, Inc. Doctor for creping tissue

Also Published As

Publication number Publication date
DE4418464A1 (de) 1994-12-08
EP0684338A2 (fr) 1995-11-29
DE59506927D1 (de) 1999-11-04
EP0684338A3 (fr) 1997-04-23
ES2138107T3 (es) 2000-01-01
US5868841A (en) 1999-02-09
ATE185177T1 (de) 1999-10-15
DE4418464C2 (de) 1995-07-06

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