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EP1408154A2 - Drainage foil for a papermachine - Google Patents

Drainage foil for a papermachine Download PDF

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Publication number
EP1408154A2
EP1408154A2 EP03450113A EP03450113A EP1408154A2 EP 1408154 A2 EP1408154 A2 EP 1408154A2 EP 03450113 A EP03450113 A EP 03450113A EP 03450113 A EP03450113 A EP 03450113A EP 1408154 A2 EP1408154 A2 EP 1408154A2
Authority
EP
European Patent Office
Prior art keywords
plates
sieve
connecting element
strip
ceramic material
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
EP03450113A
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German (de)
French (fr)
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EP1408154B1 (en
EP1408154A3 (en
Inventor
Klaus Bartelmuss
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Individual
Original Assignee
Individual
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Filing date
Publication date
Priority claimed from AT13632002A external-priority patent/AT412217B/en
Application filed by Individual filed Critical Individual
Priority to AT03450113T priority Critical patent/ATE330062T1/en
Publication of EP1408154A2 publication Critical patent/EP1408154A2/en
Publication of EP1408154A3 publication Critical patent/EP1408154A3/en
Application granted granted Critical
Publication of EP1408154B1 publication Critical patent/EP1408154B1/en
Anticipated expiration legal-status Critical
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Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00Wet end of machines for making continuous webs of paper
    • D21F1/48Suction apparatus
    • D21F1/483Drainage foils and bars

Definitions

  • the subject invention relates to a sifting for a papermaking plant consisting of a support bar and attached to this, to each other subsequent plates of a ceramic material, wherein the Carrying rail and the plates of ceramic material to the adjacent Surfaces are formed with mutually facing recesses, in which fasteners are anchored.
  • the subject invention is therefore the object of a To create a sill through which the known prior art Adhesive disadvantages are avoided.
  • This is inventively characterized achieved that the connecting elements in the recesses of the plates made of ceramic material are fixed by positive engagement and that side by side located plates by means of at least one over the butt joint extending, common Kauselmentes on the support bar are attached.
  • the recesses located in the plates are with undercuts formed, which are engaged behind by the connecting elements are.
  • the recesses provided in the plates are by at least one extending in the longitudinal direction of the support bar Groove formed.
  • each connecting element is formed by a strip, which in the region assigned to a recess of the plates has a cross-section which is diametrically opposite to the cross-section of the recess.
  • the strip-shaped connecting element may be divided in its longitudinal direction into at least two wedge-shaped element pieces.
  • each connecting element may be formed as a cone body, which is formed in the area associated with a recess in a plate area with diametrically disposed flats, and it may also be formed with a transverse to the flats slot.
  • each connecting element may be formed with a ring-running collar, which comes to rest on the surface of the plate.
  • each connecting element on the end face associated with the support bar with an actuating slot or the like.
  • the connecting element is designed as a trapezoidal spring body which is elastically deformable in its region assigned to a recess in a plate.
  • each connecting element may be formed as a cone-shaped body, which is formed slotted in its part facing the plate and which is provided with an axial bore into which a screw can be screwed, whereby the two parts separated by a slot are radially apart adjustable.
  • the connecting element formed by a bracket, which with two semi-annular, through a slot separate bracket parts is formed, wherein in the plates provided grooves have an approximately circular cross-section.
  • the grooves of the plates bracket parts Fixed in position by means of a potting compound.
  • FIGS. 1 and 1a screening strip for papermaking plants consists of a support strip 1, at the top over the entire length of plates 2 are fixed from ceramic material.
  • the support strip 1 is formed over its entire length with a groove 10, by means of which it can be fastened to a support frame and relative to this transversely to the direction of movement of the wire belt of the papermaking plant.
  • the support bar 1 is formed with two equally extending over its entire length grooves 11.
  • the plates 2 made of ceramic material on its underside with extending over the entire length of grooves 21 are formed.
  • the grooves 11 and 21 serve to receive fastening elements 3 for the attachment of the plates 2 made of ceramic material to the support strip. 1
  • the connecting elements 3 are arranged so that they extend over the joint between two adjacent plates 2 of ceramic material.
  • the support bar 1 and the connecting elements 3 are made of steel, of a hard plastic material, such as polyethylene, glass fiber reinforced plastic, carbon fibers or the like. Materials made. The choice of material for the support strips and the connecting elements is known from the prior art. 2, 2a to 2c, a first type of connecting elements 3 is explained. As can be seen from Fig.2, the grooves 21 provided in the plates 2 are undercut. As can be further seen from Figs.2a to 2c, each connecting element 3 is formed in its upper portion with a broadening, whereby it is adapted to the cross section of the grooves 21 of the plates 2. In order to push the connecting elements 3 in the grooves 21 and to lock in these, they are divided along a vertical plane into two wedge-shaped components 31 and 32.
  • the connecting elements 3 are formed with laterally projecting ribs 33.
  • the attachment of the connecting elements 3 in the grooves 21 of the plates 2 takes place in that they are inserted into these from their end faces. Since the upper portion of the connecting elements 2 has a groove 21 opposite cross-section, the connecting elements are rigidly fixed in the grooves 21 by positive engagement.
  • the attachment of the connecting elements 3 in the grooves 11 of the support strips 1 is effected by introducing a plastic potting compound 4. Due to the positive connection of the plates 2 with the connecting elements 3, this has the desired rigidity. Furthermore, since the connecting elements 3 extend over the butt joints located between two plates 2, the adjacent plates 2 are rigidly fixed to one another, with their abutting edges being at the same height.
  • FIG.3, 3a to 3d is a second embodiment of a connecting element shown.
  • This connecting element consists of a conical pin 5, which over part of its height with a Slit 51 and formed with two diametrically opposed flats 52 is. Furthermore, he has a curved head 54 at its tapered end with actuating slots 55.
  • This connecting element 5 can due to the flattening 52 in the undercut Grooves 21 of the plates 2 are used. By its rotation by 90 ° whose conical surfaces 53 come to the side walls of the Grooves 21 to the plant and are due to the achieved by the slot 51 Elasticity locked with these form-fitting.
  • these connecting elements 5 also become used in the region of the impact in two adjacent plates 2, whereby they are rigidly attached to each other.
  • the connecting element 5a shown in FIGS. 4, 4a to 4d differs from the pin 5 according to the 3a to 3d only in that he with a annular collar 57 is formed, which at the bottom of the Plates 2 comes to the plant.
  • the connecting element shown in Figures 5, 5a and 5b is also formed by a conical pin 6, which with a central bore 61 and formed with a slot 62, wherein the central bore 61 is assigned a screw 63.
  • the screw 63 By screwing in the screw 63 are the two the grooves 21 associated wings of the pin 6 apart moves, whereby it locks in the grooves 21 by positive engagement become.
  • the connecting element shown in Figures 6 and 6a consists of a approximately V-shaped spring 7, the two legs 72 to the two side walls the grooves 21 come form-fitting to the plant.
  • the connecting element 8 shown in Figures 7 and 7a consists of a keyhole-shaped bracket 8, which with two legs 81 and 82nd is formed, which is inserted into the grooves 11 of the support strip 1 and by means the potting compound 4 are attached. Close to the legs 81 and 82 semi-annular strap parts 83 and 84, which through a slot 85 from each other are separated. Through the slot 85, the bracket 8, the required Elasticity to be inserted into the annular grooves 21 of the plates 2 to become. Since the grooves 21 a corresponding, approximately annular Have cross-section, this is also a positive locking the bracket 8 with the plates 2. Finally, in the grooves 11 and 21 remaining space filled by a plastic mass 4a, thereby the bracket 8 are fixed in position.
  • connecting elements extend beyond the butt joint between two plates 2, whereby they are held in their mutual position.
  • the connecting elements are inserted into the grooves 21 of the plates 2 and lie against the side walls directly, being held in these by positive engagement.
  • the connecting elements in the grooves of the support strips are secured by a potting compound.
  • all connecting elements are each arranged in the region of the butt joints between two plates 2 made of ceramic material, whereby by means of the connecting elements in each case two adjacent plates 2 are also rigidly fixed to each other, whereby they are held in the same altitude.

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Abstract

Siebleiste für eine Papiererzeugungsanlage bestehend aus einer Tragleiste (1) und an dieser befestigten, aneinander anschließenden Platten (2) aus einem keramischen Material, wobei die Tragleiste (1) und die Platten (2) aus keramischem Material an den aneinander liegenden Flächen mit einander zugewandten Ausnehmungen ( 11, 21 ) ausgebildet sind, in welchen Verbindungselemente (3) verankert sind. Dabei sind diese Verbindungselemente (3) in den Ausnehmungen der Platten (2) aus keramischem Material durch Formschluß befestigt und sind nebeneinander befindliche Platten (2) mittels mindestens eines sich über die Stoßfuge erstreckenden, gemeinsamen Verbindungselementes (3) an der Tragleiste (1) befestigt (Fig.1a).

Figure 00000001
Sieve strip for a papermaking plant consisting of a support strip (1) and attached to this, adjoining plates (2) made of a ceramic material, wherein the support strip (1) and the plates (2) made of ceramic material on the adjacent surfaces facing each other Recesses (11, 21) are formed, in which connecting elements (3) are anchored. In this case, these connecting elements (3) in the recesses of the plates (2) made of ceramic material are fixed by positive engagement and adjacent plates (2) by means of at least one extending over the butt joint, common connecting element (3) attached to the support bar (1) (1a).
Figure 00000001

Description

Die gegenständliche Erfindung betrifft eine Siebleiste für eine Papiererzeugungsanlage bestehend aus einer Tragleiste und an dieser befestigten, aneinander anschließenden Platten aus einem keramischen Material, wobei die Tragleiste und die Platten aus keramischem Material an den aneinander liegenden Flächen mit einander zugewandten Ausnehmungen ausgebildet sind, in welchen Verbindungselemente verankert sind.The subject invention relates to a sifting for a papermaking plant consisting of a support bar and attached to this, to each other subsequent plates of a ceramic material, wherein the Carrying rail and the plates of ceramic material to the adjacent Surfaces are formed with mutually facing recesses, in which fasteners are anchored.

Anlagen zur Papiererzeugung weisen ein Siebband auf, auf dessen Oberseite ein Papierbrei aufgebracht wird. Die im Papierbrei enthaltene Flüssigkeit tritt durch das Siebband hindurch, wobei es durch Siebleisten, über welche das Siebband geführt wird, abgestreift wird. Da derartige Siebleisten starken mechanischen Belastungen ausgesetzt sind und weiters die aus dem Papierbrei austretende Flüssigkeit äußerst aggressiv ist, müssen die Siebleisten aus sehr widerstandsfähigen Materialien bestehen. Aus diesem Grund werden Siebleisten mit Platten aus keramischen Materialien versehen.Equipment for paper production have a screen belt on top of it a pulp is applied. The liquid contained in the pulp passes through the screen belt, passing through Siebleisten, over which the screen belt is guided, is stripped off. Because such Siebleisten strong are subjected to mechanical stress and further from the pulp leaking fluid is extremely aggressive, the Siebelisten must consist of very resistant materials. For this reason will be Siebleisten provided with plates of ceramic materials.

Aus keramischen Materialien bestehende Platten, welche durch Pulversinterung hergestellt werden, können jedoch nur in Längen von etwa 10 cm bis 20 cm hergestellt werden. Da demgegenüber Siebbänder in Papiererzeugungsanlagen Breiten von über 6 m aufweisen, bedingt dies, daß die Siebleisten mit einer Vielzahl von dicht aneinander angeordneten keramischen Platten ausgebildet sind, welche einzeln an einer Tragleiste befestigt sind.From ceramic materials existing plates, which by powder sintering can be made, however, only in lengths of about 10 cm 20 cm are produced. In contrast, sieve belts in papermaking plants Widths of over 6 m, this requires that the Siebleisten with a plurality of closely spaced ceramic plates are formed, which are individually attached to a support strip.

Zur Befestigung der Platten aus keramischem Material an den Tragleisten ist es bekannt, sowohl die Tragleisten als auch die Platten aus keramischem Material an den einander zugewandten Flächen mit Ausnehmungen auszubilden, in welchen mittels Kunststoffmassen Verbindungselemente verankert werden. Die Verwendung von Kunststoffmassen zur Verankerung der Verbindungselemente ist jedoch insoferne nachteilig, als diese Massen gegenüber den Platten aus keramischem Material wesentlich höhere Ausdehnungskoeffizienten aufweisen, wodurch infolge von Wärmedehnungen die Platten aus keramischem Material auf den Tragleisten nicht mit der erforderlichen Starrheit befestigt sind, sondern vielmehr gegenüber den Tragleisten und gegeneinander Lageveränderungen ausführen können. Dies gilt insbesondere hinsichtlich der gegenseitigen Höhenlagen der einzelnen Platten aus keramischem Material. Da jedoch das Siebband an die Siebleisten unter hohem Druck dicht anliegt, treten bei nicht vollständig ebenen Oberflächen der Siebleisten mehrere nachteilige Effekte auf. So wird in Bereichen von Überhöhungen der Siebleisten das Siebband überbelastet, wodurch es einem stark vergrößerten Verschleiß unterliegt. Weiters liegen in den neben den Überhöhungen befindlichen Bereichen die Siebleisten weniger dicht an das Siebband an, wodurch deren Abstreifwirkung vermindert wird, weswegen die Papierqualität über die Breite des Siebbandes unterschiedlich ist.To attach the plates of ceramic material to the support bars is it is known, both the support strips and the plates of ceramic material on the mutually facing surfaces with recesses, in which anchored by means of plastic compounds fasteners become. The use of plastic materials for anchoring the fasteners However, it is disadvantageous, as compared to these masses the plates of ceramic material significantly higher expansion coefficients have, whereby due to thermal expansion, the plates made of ceramic material on the support rails not with the required Rigidity are attached, but rather opposite the support bars and against each other position changes can perform. This is especially true in terms of the mutual elevations of the individual plates of ceramic Material. However, since the screen belt to the Siebleisten under high Pressure is tight, occur in not completely flat surfaces of the They had several adverse effects. Thus, in areas of elevations the Siebleisten the filter belt overloaded, making it a strong subject to increased wear. Furthermore, lie in the next to the elevations The Siebleisten less close to the screen belt on, whereby their wiping action is reduced, so the paper quality is different over the width of the screen belt.

Der gegenständlichen Erfindung liegt somit die Aufgabe zugrunde, eine Siebleiste zu schaffen, durch welche die dem bekannten Stand der Technik anhaftenden Nachteile vermieden werden. Dies wird erfindungsgemäß dadurch erzielt, daß die Verbindungselemente in den Ausnehmungen der Platten aus keramischem Material durch Formschluß befestigt sind und daß nebeneinander befindliche Platten mittels mindestens eines sich über die Stoßfuge erstreckenden, gemeinsamen Verbindungselmentes an der Tragleiste befestigt sind.The subject invention is therefore the object of a To create a sill through which the known prior art Adhesive disadvantages are avoided. This is inventively characterized achieved that the connecting elements in the recesses of the plates made of ceramic material are fixed by positive engagement and that side by side located plates by means of at least one over the butt joint extending, common Verbindungselmentes on the support bar are attached.

Vorzugsweise sind die in den Platten befindlichen Ausnehmungen mit Hinterschneidungen ausgebildet, welche von den Verbindungselementen hintergriffen sind. Insbesondere sind die in den Platten vorgesehenen Ausnehmungen durch mindestens eine sich in Längsrichtung der Tragleiste erstreckende Nut gebildet.Preferably, the recesses located in the plates are with undercuts formed, which are engaged behind by the connecting elements are. In particular, the recesses provided in the plates are by at least one extending in the longitudinal direction of the support bar Groove formed.

Vorzugsweise ist jedes Verbindungselement durch eine Leiste gebildet, welche in dem einer Ausnehmung der Platten zugeordneten Bereich eine dem Querschnitt der Ausnehmung gegengleichen Querschnitt aufweist. Dabei kann das leistenförmige Verbindungselement in dessen Längsrichtung in mindestens zwei keilförmige Elementestücke unterteilt sein. Zudem kann jedes Verbindungselement als Konuskörper ausgebildet sein, welcher in dem einer Ausnehmung in einer Platte zugeordneten Bereich mit diametral angeordneten Abflachungen ausgebildet ist, wobei es zudem mit einem quer zu den Abflachungen verlaufenden Schlitz ausgebildet sein kann. Zudem kann jedes Verbindungselement mit einem ringsumlaufenden Bund ausgebildet sein, welcher an die Oberfläche der Platte zur Anlage kommt. Weiters ist vorzugsweise jedes Verbindungselement an der der Tragleiste zugeordneten Stirnfläche mit einem Betätigungsschlitz od.dgl. ausgebildet.
Nach einer weiteren Ausführungsform ist das Verbindungselement als trapezförmiger Federkörper ausgebildet, welcher in seinem einer Ausnehmung in einer Platte zugeordneten Bereich elastisch verformbar ist. Weiters kann jedes Verbindungselement als konusartiger Körper ausgebildet sein, welcher in seinem der Platte zugewandten Teil geschlitzt ausgebildet ist und welcher mit einer axialen Bohrung versehen ist, in welche eine Schraube eindrehbar ist, wodurch die beiden durch einen Schlitz getrennten Teile radial auseinander verstellbar sind.
Preferably, each connecting element is formed by a strip, which in the region assigned to a recess of the plates has a cross-section which is diametrically opposite to the cross-section of the recess. In this case, the strip-shaped connecting element may be divided in its longitudinal direction into at least two wedge-shaped element pieces. In addition, each connecting element may be formed as a cone body, which is formed in the area associated with a recess in a plate area with diametrically disposed flats, and it may also be formed with a transverse to the flats slot. In addition, each connecting element may be formed with a ring-running collar, which comes to rest on the surface of the plate. Furthermore, preferably, each connecting element on the end face associated with the support bar with an actuating slot or the like. educated.
According to a further embodiment, the connecting element is designed as a trapezoidal spring body which is elastically deformable in its region assigned to a recess in a plate. Furthermore, each connecting element may be formed as a cone-shaped body, which is formed slotted in its part facing the plate and which is provided with an axial bore into which a screw can be screwed, whereby the two parts separated by a slot are radially apart adjustable.

Nach einer weiteren bevorzugten Ausführungsform ist das Verbindungselement durch einen Bügel gebildet, welcher mit zwei halbringförmigen, durch einen Schlitz getrennten Bügelteilen ausgebildet ist, wobei die in den Platten vorgesehenen Nuten einen angenähert kreisförmigen Querschnitt aufweisen. Vorzugsweise sind dabei die in den Nuten der Platten befindlichen Bügelteile mittels einer Vergußmasse lagefixiert.According to a further preferred embodiment, the connecting element formed by a bracket, which with two semi-annular, through a slot separate bracket parts is formed, wherein in the plates provided grooves have an approximately circular cross-section. Preferably, there are located in the grooves of the plates bracket parts Fixed in position by means of a potting compound.

Der Gegenstand der Erfindung ist nachstehend anhand von mehreren in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert. Es zeigen:

Fig.1
eine erfindungsgemäße Siebleiste, in axonometrischer Darstellung;
Fig. 1a
das Detail A der Fig.1, in gegenüber Fig. 1 vergrößertem Maßstab;
Fig.2
eine erfindungsgemäße Siebleiste mit einer ersten Ausführungsform eines Verbindungselementes, in vertikalem Schnitt;
Fig.2a bis 2c
das Verbindungselement gemäß Fig.2, in Vorderansicht, in Draufsicht und in axonometrischer Darstellung;
Fig.3
eine erfindungsgemäße Siebleiste mit einer zweiten Ausführungsform eines Verbindungselementes, in vertikalem Schnitt;
Fig.3a bis 3d
das Verbindungselement gemäß Fig.3, in zwei Seitenansichten und in zwei Draufsichten;
Fig.4
eine erfindungsgemäße Siebleiste mit einer dritten Ausführungsform eines Verbindungselementes, in vertikalem Schnitt;
Fig.4a bis 4d
das Verbindungselement gemäß Fig.4, in zwei Seitenansichten und in zwei Draufsichten;
Fig.5
eine erfindungsgemäße Siebleiste mit einer vierten Ausführungsform eines Verbindungselementes, in vertikalem Schnitt;
Fig.5a und 5b
das Verbindungselement gemäß Fig.5, in zwei Stadien von dessen Verwendung;
Fig.6
eine erfindungsgemäße Siebleiste mit einer fünften Ausführungsform eines Verbindungselementes, in vertikalem Schnitt;
Fig.6a
das Verbindungselement gemäß Fig.6, in Stirnansicht;
Fig.7
eine erfindungsgemäße Siebleiste in einer sechsten Ausführungsform; und
Fig.7a
das Verbindungselement gemäß Fig.7, in Stirnansicht.
The object of the invention is explained below with reference to several embodiments illustrated in the drawings. Show it:
Fig.1
a Siebleiste invention, in axonometric representation;
Fig. 1a
the detail A of Figure 1, in relation to Figure 1 on an enlarged scale.
Fig.2
a Siebleiste invention with a first embodiment of a connecting element, in vertical section;
2a to 2c
the connecting element according to Figure 2, in front view, in plan view and in axonometric representation;
Figure 3
a screen according to the invention with a second embodiment of a connecting element, in vertical section;
3a to 3d
the connecting element according to Figure 3, in two side views and in two plan views;
Figure 4
a Siebleiste invention with a third embodiment of a connecting element, in vertical section;
4a to 4d
the connecting element according to Figure 4, in two side views and in two plan views;
Figure 5
a screen according to the invention with a fourth embodiment of a connecting element, in vertical section;
5a and 5b
the connecting element according to Figure 5, in two stages of its use;
Figure 6
a screen according to the invention with a fifth embodiment of a connecting element, in vertical section;
6a
the connecting element according to Figure 6, in front view;
Figure 7
a Siebleiste invention in a sixth embodiment; and
7a
the connecting element according to Figure 7, in front view.

Die in den Fig. 1 und 1a dargestellte Siebleiste für Papiererzeugungsanlagen besteht aus einer Tragleiste 1, an deren Oberseite über deren gesamte Länge Platten 2 aus keramischem Material befestigt sind. An der Unterseite ist die Tragleiste 1 über ihre gesamte Länge mit einer Nut 10 ausgebildet, mittels welcher sie an einem Traggestell befestigbar und gegenüber diesem quer zur Bewegungsrichtung des Siebbandes der Papiererzeugungsanlage verschiebbar ist. An ihrer Oberseite ist die Tragleiste 1 mit zwei sich gleichfalls über ihre gesamte Länge erstreckenden Nuten 11 ausgebildet. In gleicher Weise sind auch die Platten 2 aus keramischem Material an ihrer Unterseite mit sich über deren gesamte Länge erstreckenden Nuten 21 ausgebildet. Die Nuten 11 und 21 dienen zur Aufnahme von Befestigungselementen 3 für die Befestigung der Platten 2 aus keramischem Material an der Tragleiste 1.
Die Verbindungselemente 3 sind so angeordnet, daß sie sich über den Stoß zwischen zwei nebeneinander befindlichen Platten 2 aus keramischem Material erstrecken.
The illustrated in FIGS. 1 and 1a screening strip for papermaking plants consists of a support strip 1, at the top over the entire length of plates 2 are fixed from ceramic material. At the bottom, the support strip 1 is formed over its entire length with a groove 10, by means of which it can be fastened to a support frame and relative to this transversely to the direction of movement of the wire belt of the papermaking plant. At its top, the support bar 1 is formed with two equally extending over its entire length grooves 11. In the same way, the plates 2 made of ceramic material on its underside with extending over the entire length of grooves 21 are formed. The grooves 11 and 21 serve to receive fastening elements 3 for the attachment of the plates 2 made of ceramic material to the support strip. 1
The connecting elements 3 are arranged so that they extend over the joint between two adjacent plates 2 of ceramic material.

Die Tragleiste 1 und die Verbindungselemente 3 sind aus Stahl, aus einem harten Kunststoffmaterial, wie Polyäthylen, aus glasfaserverstärktem Kunststoff, aus Kohlefasern od.dgl. Materialien hergestellt. Die Materialauswahl für die Tragleisten und die Verbindungselemente ist aus dem Stand der Technik bekannt.
Anhand der Fig.2, 2a bis 2c ist eine erste Art von Verbindungselementen 3 erläutert. Wie dies aus Fig.2 ersichtlich ist, sind die in den Platten 2 vorgesehenen Nuten 21 hinterschnitten ausgebildet. Wie dies weiters aus den Fig.2a bis 2c ersichtlich ist, ist jedes Verbindungselement 3 in seinem oberen Bereich mit einer Verbreiterung ausgebildet, wodurch es dem Querschnitt der Nuten 21 der Platten 2 angepaßt ist. Um die Verbindungselemente 3 in die Nuten 21 einschieben und in diesen verriegeln zu können, sind sie längs einer vertikalen Ebene in zwei keilförmige Bauteile 31 und 32 unterteilt. An ihrer Unterseite sind die Verbindungselemente 3 mit seitlich abragenden Rippen 33 ausgebildet. Die Befestigung der Verbindungselemente 3 in den Nuten 21 der Platten 2 erfolgt dadurch, daß sie in diese von deren Stirnflächen her eingeschoben werden. Da der obere Bereich der Verbindungselemente 2 einen den Nuten 21 gegengleichen Querschnitt aufweist, werden die Verbindungselemente in den Nuten 21 durch Formschluß starr befestigt. Die Befestigung der Verbindungselemente 3 in den Nuten 11 der Tragleisten 1 erfolgt durch Einbringen einer aus Kunststoff bestehenden Vergußmasse 4. Aufgrund der formschlüssigen Verbindung der Platten 2 mit den Verbindungselementen 3 weist diese die angestrebte Starrheit auf. Da sich weiters die Verbindungselemente 3 über die zwischen zwei Platten 2 befindlichen Stoßfugen erstrecken, sind auch die nebeneinander befindlichen Platten 2 aneinander starr befestigt, wobei sich deren Stoßkanten auf der gleichen Höhe befinden.
The support bar 1 and the connecting elements 3 are made of steel, of a hard plastic material, such as polyethylene, glass fiber reinforced plastic, carbon fibers or the like. Materials made. The choice of material for the support strips and the connecting elements is known from the prior art.
2, 2a to 2c, a first type of connecting elements 3 is explained. As can be seen from Fig.2, the grooves 21 provided in the plates 2 are undercut. As can be further seen from Figs.2a to 2c, each connecting element 3 is formed in its upper portion with a broadening, whereby it is adapted to the cross section of the grooves 21 of the plates 2. In order to push the connecting elements 3 in the grooves 21 and to lock in these, they are divided along a vertical plane into two wedge-shaped components 31 and 32. On its underside, the connecting elements 3 are formed with laterally projecting ribs 33. The attachment of the connecting elements 3 in the grooves 21 of the plates 2 takes place in that they are inserted into these from their end faces. Since the upper portion of the connecting elements 2 has a groove 21 opposite cross-section, the connecting elements are rigidly fixed in the grooves 21 by positive engagement. The attachment of the connecting elements 3 in the grooves 11 of the support strips 1 is effected by introducing a plastic potting compound 4. Due to the positive connection of the plates 2 with the connecting elements 3, this has the desired rigidity. Furthermore, since the connecting elements 3 extend over the butt joints located between two plates 2, the adjacent plates 2 are rigidly fixed to one another, with their abutting edges being at the same height.

Anhand der Fig.3, 3a bis 3d ist eine zweite Ausführungsform eines Verbindungselementes dargestellt. Dieses Verbindungselement besteht aus einem konisch ausgebildeten Zapfen 5, welcher über einen Teil seiner Höhe mit einem Schlitz 51 und mit zwei diametral liegenden Abflachungen 52 ausgebildet ist. Weiters weist er an seinem verjüngten Ende einen gewölbten Kopf 54 mit Betätigungsschlitzen 55 auf.Reference to the Fig.3, 3a to 3d is a second embodiment of a connecting element shown. This connecting element consists of a conical pin 5, which over part of its height with a Slit 51 and formed with two diametrically opposed flats 52 is. Furthermore, he has a curved head 54 at its tapered end with actuating slots 55.

Dieses Verbindungselement 5 kann aufgrund der Abflachungen 52 in die hinterschnittenen Nuten 21 der Platten 2 eingesetzt werden. Durch dessen Verdrehung um 90° kommen dessen Konusflächen 53 an die Seitenwände der Nuten 21 zur Anlage und werden aufgrund der durch den Schlitz 51 erzielten Elastizität mit diesen formschlüssig verriegelt.This connecting element 5 can due to the flattening 52 in the undercut Grooves 21 of the plates 2 are used. By its rotation by 90 ° whose conical surfaces 53 come to the side walls of the Grooves 21 to the plant and are due to the achieved by the slot 51 Elasticity locked with these form-fitting.

Wie dies aus Fig.3d ersichtlich ist, werden auch diese Verbindungselemente 5 im Bereich des Stoßes in zwei nebeneinander liegende Platten 2 eingesetzt, wodurch diese starr aneinander befestigt werden.As can be seen from FIG. 3 d, these connecting elements 5 also become used in the region of the impact in two adjacent plates 2, whereby they are rigidly attached to each other.

Das in den Fig.4, 4a bis 4d dargestellte Verbindungselement 5a unterscheidet sich vom Zapfen 5 gemäß den Fig.3a bis 3d nur dadurch, daß er mit einem ringsumlaufenden Bund 57 ausgebildet ist, welcher an die Unterseite der Platten 2 zur Anlage kommt. The connecting element 5a shown in FIGS. 4, 4a to 4d differs from the pin 5 according to the 3a to 3d only in that he with a annular collar 57 is formed, which at the bottom of the Plates 2 comes to the plant.

Das in den Fig.5, 5a und 5b dargestellte Verbindungselement ist gleichfalls durch einen konischen Zapfen 6 gebildet, welcher mit einer zentrischen Bohrung 61 und mit einem Schlitz 62 ausgebildet ist, wobei der zentralen Bohrung 61 eine Schraube 63 zugeordnet ist. Durch das Eindrehen der Schraube 63 werden die beiden den Nuten 21 zugeordneten Flügel des Zapfens 6 auseinander bewegt, wodurch sie in den Nuten 21 durch Formschluß verriegelt werden.The connecting element shown in Figures 5, 5a and 5b is also formed by a conical pin 6, which with a central bore 61 and formed with a slot 62, wherein the central bore 61 is assigned a screw 63. By screwing in the screw 63 are the two the grooves 21 associated wings of the pin 6 apart moves, whereby it locks in the grooves 21 by positive engagement become.

Das in den Fig.6 und 6a dargestellte Verbindungselement besteht aus einer angenähert V-förmigen Feder 7, deren beiden Schenkel 72 an die beiden Seitenwände der Nuten 21 formschlüssig zur Anlage kommen.The connecting element shown in Figures 6 and 6a consists of a approximately V-shaped spring 7, the two legs 72 to the two side walls the grooves 21 come form-fitting to the plant.

Das in den Fig.7 und 7a dargestellte Verbindungselement 8 besteht aus einem schlüssellochförmigen Bügel 8, welcher mit zwei Schenkeln 81 und 82 ausgebildet ist, welche in die Nuten 11 der Tragleiste 1 eingesetzt und mittels der Vergußmasse 4 befestigt sind. An die Schenkel 81 und 82 schließen halbringförmige Bügelteile 83 und 84 an, welche durch einen Schlitz 85 voneinander getrennt sind. Durch den Schlitz 85 weist der Bügel 8 die erforderliche Elastizität auf, um in die ringförmigen Nuten 21 der Platten 2 eingesetzt zu werden. Da die Nuten 21 einen entsprechenden, angenähert ringförmigen Querschnitt aufweisen, erfolgt auch hierdurch eine formschlüssige Verriegelung der Bügel 8 mit den Platten 2. Schließlich wird der in den Nuten 11 und 21 verbleibende Raum durch eine Kunststoffmasse 4a ausgefüllt, wodurch die Bügel 8 lagefixiert werden.The connecting element 8 shown in Figures 7 and 7a consists of a keyhole-shaped bracket 8, which with two legs 81 and 82nd is formed, which is inserted into the grooves 11 of the support strip 1 and by means the potting compound 4 are attached. Close to the legs 81 and 82 semi-annular strap parts 83 and 84, which through a slot 85 from each other are separated. Through the slot 85, the bracket 8, the required Elasticity to be inserted into the annular grooves 21 of the plates 2 to become. Since the grooves 21 a corresponding, approximately annular Have cross-section, this is also a positive locking the bracket 8 with the plates 2. Finally, in the grooves 11 and 21 remaining space filled by a plastic mass 4a, thereby the bracket 8 are fixed in position.

Auch diese Verbindungselemente erstrecken sich über die Stoßfuge zwischen zwei Platten 2 hinweg, wodurch diese in ihrer gegenseitigen Lage gehalten werden.
Bei sämtlichen Ausführungsbeispielen sind die Verbindungselemente in die Nuten 21 der Platten 2 eingesetzt und liegen an deren Seitenwände unmittelbar an, wobei sie in diesen durch Formschluß gehalten sind. Die Verbindungselemente in den Nuten der Tragleisten sind durch eine Vergußmasse befestigt. Weiters sind sämtliche Verbindungselemente jeweils im Bereich der Stoßfugen zwischen zwei Platten 2 aus keramischem Material angeordnet, wodurch mittels der Verbindungselemente jeweils zwei nebeneinander befindliche Platten 2 auch miteinander starr befestigt sind, wodurch sie in der gleichen Höhenlage gehalten sind.
These connecting elements extend beyond the butt joint between two plates 2, whereby they are held in their mutual position.
In all embodiments, the connecting elements are inserted into the grooves 21 of the plates 2 and lie against the side walls directly, being held in these by positive engagement. The connecting elements in the grooves of the support strips are secured by a potting compound. Furthermore, all connecting elements are each arranged in the region of the butt joints between two plates 2 made of ceramic material, whereby by means of the connecting elements in each case two adjacent plates 2 are also rigidly fixed to each other, whereby they are held in the same altitude.

Claims (13)

Siebleiste für eine Papiererzeugungsanlage bestehend aus einer Tragleiste (1) und an dieser befestigten, aneinander anschließenden Platten (2) aus einem keramischen Material, wobei die Tragleiste (1) und die Platten (2) aus keramischem Material an den aneinander liegenden Flächen mit einander zugewandten Ausnehmungen (11, 21) ausgebildet sind, in welchen Verbindungselemente (3) verankert sind, dadurch gekennzeichnet, daß diese Verbindungselemente (3) in den Ausnehmungen der Platten (2) aus keramischem Material durch Formschluß befestigt sind und daß nebeneinander befindliche Platten (2) mittels mindestens eines sich über die Stoßfuge erstreckenden, gemeinsamen Verbindungselementes (3) an der Tragleiste (1) befestigt sind.Sieve strip for a papermaking plant consisting of a support strip (1) and attached to this, adjoining plates (2) made of a ceramic material, wherein the support strip (1) and the plates (2) made of ceramic material on the adjacent surfaces facing each other Recesses (11, 21) are formed, in which connecting elements (3) are anchored, characterized in that these connecting elements (3) are fastened in the recesses of the plates (2) made of ceramic material by positive engagement and that juxtaposed plates (2) by means of at least one joint connecting element (3) extending over the joint, are fastened to the support strip (1). Siebleiste nach Patentanspruch 1, dadurch gekennzeichnet, daß die in den Platten (2) befindlichen Ausnehmungen (21) mit Hinterschneidungen ausgebildet sind, welche von den Verbindungselementen (3) hintergriffen sind.Sieve according to claim 1, characterized in that in the plates (2) located recesses (21) are formed with undercuts, which are engaged behind by the connecting elements (3). Siebleiste nach einem der Patentansprüche 1 und 2, dadurch gekennzeichnet, daß die in den Platten (2) vorgesehenen Ausnehmungen durch mindestens eine sich in Längsrichtung der Tragleiste (1) erstreckende Nut (21) gebildet sind.A sieve strip according to one of the claims 1 and 2, characterized in that the recesses provided in the plates (2) are formed by at least one groove (21) extending in the longitudinal direction of the carrier strip (1). Siebleiste nach einem der Patentansprüche 1 bis 3, dadurch gekennzeichnet, daß ein Verbindungselement (3) durch eine Leiste gebildet ist, welche in dem einer Ausnehmung (21) der Platten (2) zugeordneten Bereich eine dem Querschnitt der Ausnehmung (21) gegengleichen Querschnitt aufweist.A sieve strip according to one of the claims 1 to 3, characterized in that a connecting element (3) is formed by a strip which has a cross section of the recess (21) in the region associated with a recess (21) of the plates (2) , Siebleiste nach Patentanspruch 4, dadurch gekennzeichnet, daß das leistenförmige Verbindungselement (3) in dessen Längsrichtung in mindestens zwei keilförmige Elementestücke (31, 32) unterteilt ist.Sieve according to claim 4, characterized in that the strip-shaped connecting element (3) in its longitudinal direction in at least two wedge-shaped element pieces (31, 32) is divided. Siebleiste nach einem der Patentansprüche 1 bis 3, dadurch gekennzeichnet, daß ein Verbindungselement als Konuskörper (5) ausgebildet ist, welcher in dem einer Ausnehmung (21) in einer Platte (2) zugeordneten Bereich mit diametral angeordneten Abflachungen (52) ausgebildet ist.A sieve strip according to one of claims 1 to 3, characterized in that a connecting element is designed as a cone body (5), which is formed in the area of a recess (21) in a plate (2) associated with diametrically arranged flats (52). Siebleiste nach Patentanspruch 6, dadurch gekennzeichnet, daß das Verbindungselement mit einem quer zu den Abflachungen (52) verlaufenden Schlitz (51) ausgebildet ist.Sieve according to claim 6, characterized in that the connecting element is formed with a transverse to the flattenings (52) extending slot (51). Siebleiste nach einem der Patentansprüche 6 und 7, dadurch gekennzeichnet, daß das Verbindungselement (5a) mit einem ringsumlaufenden Bund (57) ausgebildet ist, welcher an die Oberfläche der Platte (2) zur Anlage kommt.A sieve strip according to one of the claims 6 and 7, characterized in that the connecting element (5a) is formed with a circumferential collar (57) which comes to rest against the surface of the plate (2). Siebleiste nach einem der Patentansprüche 6 bis 8, dadurch gekennzeichnet, daß das Verbindungselement (5) an der der Tragleiste (1) zugeordneten Stirnfläche mit einem Betätigungsschlitz (55) od.dgl. ausgebildet ist.Sieve strip according to one of the claims 6 to 8, characterized in that the connecting element (5) on the support strip (1) associated end face with an actuating slot (55) or the like. is trained. Siebleiste nach einem der Patentansprüche 1 bis 3, dadurch gekennzeichnet, daß ein Verrbindungselement als trapezförmiger Federkörper (7) ausgebildet ist, welcher in seinem einer Ausnehmung (21) in einer Platte (2) zugeordneten Bereich elastisch verformbar ist.Sieve according to one of claims 1 to 3, characterized in that a Verrbindungselement is designed as a trapezoidal spring body (7), which in its one recess (21) in a plate (2) associated region is elastically deformable. Siebleiste nach einem der Patentansprüche 1 bis 3, dadurch gekennzeichnet, daß ein Verbindungselement als konusartiger Körper (6) ausgebildet ist, welcher in seinem der Platte (2) zugewandten Teil geschlitzt ausgebildet ist und welcher mit einer axialen Bohrung (61) versehen ist, in welche eine Schraube (63) eindrehbar ist, wodurch die beiden durch einen Schlitz (62) getrennten Teile radial auseinander verstellbar sind.A sieve strip according to one of the claims 1 to 3, characterized in that a connecting element is designed as a conical body (6) which is slotted in its part facing the plate (2) and which is provided with an axial bore (61) which a screw (63) can be screwed, whereby the two separated by a slot (62) parts are radially apart adjustable. Siebleiste nach einem der Patentansprüche 1 bis 3, dadurch gekennzeichnet, daß ein Verbindungselement durch einen Bügel (8) gebildet ist, welcher mit zwei halbringförmigen, durch einen Schlitz (85) getrennten Bügelteilen (83, 84) ausgebildet ist und daß die in den Platten (2) vorgesehenen Nuten (21) einen angenähert kreisförmigen Querschnitt aufweisen.Sieve according to one of claims 1 to 3, characterized in that a connecting element is formed by a bracket (8) which is formed with two semi-annular, by a slot (85) separate bracket parts (83, 84) and that in the plates (2) provided grooves (21) have an approximately circular cross-section. Siebleiste nach Patentanspruch 12, dadurch gekennzeichnet, daß die in den Nuten (21) der Platten (2) befindlichen Bügelteile (83, 84) mittels einer Vergußmasse (4a) lagefixiert sind.A sieve strip according to claim 12, characterized in that in the grooves (21) of the plates (2) located bracket parts (83, 84) are fixed in position by means of a potting compound (4a).
EP03450113A 2002-09-12 2003-05-08 Drainage foil for a papermachine Expired - Lifetime EP1408154B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT03450113T ATE330062T1 (en) 2002-09-12 2003-05-08 SCREEN LEAD FOR A PAPER MAKING PLANT

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT13632002A AT412217B (en) 2002-09-12 2002-09-12 Support beam for sliding sieve within a papermaking assembly has series of ceramic caps linked to underlying beam by twin-dovetail plugs and matching grooves
AT13632002 2002-09-12
AT0161402A AT411770B (en) 2002-09-12 2002-10-24 SCREEN BAR FOR A PAPER PRODUCTION PLANT
AT16142002 2002-10-24

Publications (3)

Publication Number Publication Date
EP1408154A2 true EP1408154A2 (en) 2004-04-14
EP1408154A3 EP1408154A3 (en) 2004-07-07
EP1408154B1 EP1408154B1 (en) 2006-06-14

Family

ID=28792683

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03450113A Expired - Lifetime EP1408154B1 (en) 2002-09-12 2003-05-08 Drainage foil for a papermachine

Country Status (9)

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US (1) US7169264B2 (en)
EP (1) EP1408154B1 (en)
JP (1) JP4493948B2 (en)
CN (1) CN1247854C (en)
AT (1) AT411770B (en)
BR (1) BR0302414B1 (en)
CA (1) CA2435706C (en)
DE (1) DE50303800D1 (en)
ES (1) ES2261910T3 (en)

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Publication number Priority date Publication date Assignee Title
AT500283B8 (en) * 2004-03-17 2007-02-15 Bartelmuss Klaus Ing SCREENING FOR PAPER PRODUCTION PLANTS
AT503435B1 (en) * 2006-07-20 2007-10-15 Bartelmuss Klaus Ing Wire foil for papermaking machines comprises support strip and ceramic plates with dovetailed undersides which fit into corresponding groove in it, spring clips fitting between plates and strip to hold them in position
US8097122B2 (en) * 2007-05-23 2012-01-17 Astenjohnson, Inc. Papermaking machine dewatering blade incorporating attachment mechanism
FI119648B (en) * 2007-06-12 2009-01-30 Metso Paper Inc Dewatering means for a web forming machine, method for forming a dewatering means used in a web forming machine and surface part of a dewatering means for a web forming machine
CN102277770B (en) * 2007-11-19 2014-10-15 维美德技术有限公司 Suction box for transmitting
DE102008040032A1 (en) * 2008-06-30 2009-12-31 Voith Patent Gmbh Strip arrangement for a machine for producing a fibrous web
EP2202355B1 (en) * 2008-12-18 2012-03-21 Klaus Bartelmuss Device for reversible attachment of a strainer strip in an assembly for creating paper
FI121796B (en) * 2009-12-09 2011-04-15 Metso Paper Inc Static element for a fiber web machine
KR102333079B1 (en) * 2019-12-09 2021-12-01 삼성전기주식회사 Coil component

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Also Published As

Publication number Publication date
CA2435706C (en) 2008-04-29
CN1487143A (en) 2004-04-07
ATA16142002A (en) 2003-10-15
CA2435706A1 (en) 2004-03-12
BR0302414A (en) 2004-09-08
EP1408154B1 (en) 2006-06-14
BR0302414B1 (en) 2013-02-19
JP2004100134A (en) 2004-04-02
DE50303800D1 (en) 2006-07-27
EP1408154A3 (en) 2004-07-07
ES2261910T3 (en) 2006-11-16
US20040050521A1 (en) 2004-03-18
JP4493948B2 (en) 2010-06-30
US7169264B2 (en) 2007-01-30
AT411770B (en) 2004-05-25
CN1247854C (en) 2006-03-29

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