EP0196686B1 - Vorrichtung zum Zusammenfügen der Enden eines Bandes zum Formen eines endlosen Bandes - Google Patents

Vorrichtung zum Zusammenfügen der Enden eines Bandes zum Formen eines endlosen Bandes Download PDF

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Publication number
EP0196686B1
EP0196686B1 EP86200250A EP86200250A EP0196686B1 EP 0196686 B1 EP0196686 B1 EP 0196686B1 EP 86200250 A EP86200250 A EP 86200250A EP 86200250 A EP86200250 A EP 86200250A EP 0196686 B1 EP0196686 B1 EP 0196686B1
Authority
EP
European Patent Office
Prior art keywords
connecting means
sheet
support bar
distance
plane
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
Application number
EP86200250A
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English (en)
French (fr)
Other versions
EP0196686A1 (de
Inventor
Hermann Hohn
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.)
V Asten Fabriques De Feutres Pour Papeteries SC
Original Assignee
V Asten Fabriques De Feutres Pour Papeteries SC
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9317232&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0196686(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by V Asten Fabriques De Feutres Pour Papeteries SC filed Critical V Asten Fabriques De Feutres Pour Papeteries SC
Priority to AT86200250T priority Critical patent/ATE38400T1/de
Publication of EP0196686A1 publication Critical patent/EP0196686A1/de
Application granted granted Critical
Publication of EP0196686B1 publication Critical patent/EP0196686B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths
    • D21F1/0054—Seams thereof

Definitions

  • the present invention relates to a device for joining the ends of at least one fabric, in particular a drying fabric to be used in the manufacture of paper, to form a continuous strip, this device being in accordance with the preamble of the claim 1.
  • Devices for joining canvas ends, comprising a board on which a canvas end, provided with a row of eyelets on the front edge, is nailed over approximately half the width of the board.
  • the other end of the canvas to be fixed also provided with a corresponding row of eyelets, is brought opposite the first end of the canvas, on the free part of the board and the eyelets are engaged in one another and gradually blocked by a stop element such as a wire, rod or the like.
  • the drying fabrics intended for the manufacture of paper have widths which can exceed 10 meters and a length of several tens of meters. They therefore have a considerable weight and their handling is not easy, especially since it must be between two rollers of a complex arrangement of rollers.
  • the eyelets which must be engaged in each other, roughly like the elements of a slider closure, have a dimension less than a centimeter. It is easy to see how much effort it takes to join the ends of the canvas using a device as described above for handling the end of the canvas which is not nailed to the board during the joining operation, and that this device can not prevent a certain awkwardness of the operators to engage the eyelets one in the other which slows down the operation.
  • the device for joining two tape ends described in FR-A-2 469 599 comprises a pair of temporary connecting elements capable of being removably fixed in the vicinity of the tape ends, these elements being elongated and rigid, and a connecting means for securing together these connecting elements so as to allow only then the nesting of the joining elements.
  • the junction can only be carried out by a simultaneous mutual bringing together of the two ends of the fabric up to a distance which allows the application between their temporary connecting elements of a connecting means which then secures them only.
  • This connecting means can be a slide capable of sliding in slides provided on the connecting elements, this sliding taking place in a horizontal movement transverse to the strip, which requires space laterally to the strip and creates a risk of 'hanging.
  • the connecting means can also possibly consist of one or more jumpers, which can optionally be fixed at the factory on one of the connecting elements. In any case, whatever the solution provided, the manipulation of the ends of the fabric remains awkward as long as at least one connecting means does not make the two temporary connecting elements join.
  • the rigidity of the assembly is low before the introduction of the connecting means and the assembly and disassembly of the temporary connecting elements are complicated, awkward and risk damaging the fabric.
  • the junction position in the paper machine must be known in advance, because the temporary connecting elements are only mounted on one side of the fabric.
  • the continuous strips to be formed generally consist of a single fabric, the two ends of which are connected. If the location of the canvas is between two upper rollers of the roller arrangement, the support bar must be in front of the internal face of the continuous strip. If, on the other hand, this location is between two lower rollers, the support bar must be in front of the external face of the continuous strip.
  • the retaining rods and / or the support board fixed on the ends of the fabric must be located, as the case may be, on one or other of its faces. This fixing is in fact done before the introduction of the canvas in the arrangement of the rollers. This preliminary work therefore requires great attention, as well as the subsequent manipulation of the canvas which can no longer be introduced in any direction, once the rods and / or the support board fixed on it. No prior art device has resolved adequately this handling problem.
  • the object of the present invention is the development of a device for joining fabric ends, which makes it possible to solve the problems described above and which does not have the drawbacks of the devices according to the prior art.
  • each end of fabric is provided with a pair of second connecting means, one of these second connecting means being arranged on one face of the fabric at a distance from said axis of engagement which is equal to the distance between one of the first connecting means of one of the two aforementioned pairs and said plane of symmetry, while the other of these second connecting means is arranged on the other face of the fabric at a distance from this same axis of engagement which is equal to the distance between the other of the first connecting means of the aforementioned pair and said plane of symmetry.
  • the support bar has, as first connecting means, grooves of stable and identical shape, which are open upwards and which extend over the entire length of the bar. support, and each end of the fabric is provided, as a second connecting means, with at least one rod, of shape permanently complementary to that of the grooves, which extends over the entire width of the fabric and which penetrates by a simple movement from top to bottom in its corresponding groove.
  • the support bar can be a grooved profile in a material resistant to deformations, for example aluminum, and the strips can be profiles, at least the part of which intended to come into contact with the grooves of the profile is made of a material resistant to deformations, for example aluminum.
  • Figure 1 shows a schematic side view of an embodiment of the joining device according to the invention, or two ends of fabric are being joined in an upper location of the arrangement of rollers.
  • FIG. 2 shows a schematic side view of the same device as that illustrated in Figure 1 but in a lower location of the arrangement of rollers.
  • the joining device 1 shown in FIGS. 1 and 2, comprises a support bar 2, the length of which is greater than the width of the strip continuing to form, as well as retaining means for holding two ends of the fabric 4 and 5 of a fabric 3 on the support bar 2 during the joining operation.
  • Each fabric 3 is provided on each of its front edges 6 and 7 with rows of engagement elements 8 and 9, for example in the form of eyelets. These eyelets are anchored on the front edges of the canvas ends, along an axis of engagement parallel to the respective front edge. This axis has been represented only for the eyelets 8 and 9 of FIG. 1 and has been designated by the reference 10 or 11 respectively.
  • the eyelets 8 and 9 are engaged one in the other like the elements. of a slider closure and a stop element 12, such as a thread, a rod, etc., is introduced into the openings of the eyelets, as shown in FIG. 2.
  • the engagement axes 10, 11 of the opposite rows of eyelets become one.
  • the support bar 2 of the fastening device 1 is provided, as means for retaining the ends of the fabric, with two pairs of parallel grooves 13, 14 and 15, 16, arranged symmetrically apart. and on the other side of a plane 17, which, after the joining operation, crosses the strip 3 along a line perpendicular to its longitudinal direction. All these grooves 13 to 16 are mutually identical and the distance d or D between the internal edge of each of them and the plane 17 is constant.
  • these support bars 2 are metal profiles, for example aluminum.
  • the profile illustrated is hollow and its grooves are of rectangular section.
  • each end of the fabric to be fixed 4, 5 is provided, as retaining means on the support bar 2, with two rods 18, 19 and respectively 20, 21, each capable of cooperating with any of the aforementioned grooves of the support bar, so as to achieve with them a detachable connection.
  • Each strip 18 to 21 is arranged parallel to the neighboring front edge 6, 7 of its canvas end. Its external face is located at a constant distance from the axis of engagement 10, 11 of the adjacent row of eyelets, this distance being equal to one of the two aforementioned distances d and D which the two grooves of each of said said have each time pairs of grooves of each support bar relative to the plane of symmetry 17 thereof.
  • the aforementioned rods are each formed in the illustrated embodiment of a U-shaped profile 22 (only the profile of the rod 19 in FIG. 1 is designated by a reference, having a cross section corresponding to that of the grooves, that is to say in this case a section of rectangular shape. for example in aluminum.
  • the profiles 22 of the rods 18 to 21 can permanently be introduced into any of the grooves 13 to 16 or be removed therefrom without problem.
  • the profile of the strip retains the corresponding canvas end on the support bar, because the canvas is subjected to a force which is directed downward or approximately parallel to its longitudinal direction.
  • each U-shaped profile 22 is filled with a core of a material such as for example wood.
  • a material such as for example wood.
  • the rods can also be fixed to the canvas.
  • a felt tape 24 which will be used for tearing off the nails after the operation of joining the ends of the fabric.
  • the two ends 4 and 5 of the fabric 3 are each provided with a pair of rods 18, 19 and 20, 21.
  • a rod 19.20 of each of these pairs of rods is, in the example illustrated, fixed by nailing on one face of each of the fabrics at the distance d from the axis of engagement 10.11 of the row of neighboring eyelets.
  • the other rod 18, 21 of each of these pairs of rods is fixed to the other face of each of the fabrics at the distance D from the axis of engagement 10, 11 of the row of neighboring eyelets.
  • This fixing of the rods on the fabrics can be done in the workshop outside the arrangement of rollers, on a support bar identical to the bar 2.
  • Each fabric provided with two rods at its two ends, on each of its faces, can then be introduced into the arrangement of rollers in any direction, regardless of the location of the support bar relative to the fabric , that is to say that it is in front of one or the other of its faces.
  • a tub will be available to cooperate with one of the two grooves in each pair of grooves in the support bar.
  • the rods that a canvas carries are then generally both fixed on the same face of the canvas.
  • grooves or even, instead of the grooves, other retaining means.

Landscapes

  • Paper (AREA)
  • Replacement Of Web Rolls (AREA)
  • Securing Of Glass Panes Or The Like (AREA)

Claims (9)

1. Vorrichtung (1) zur Verbindung der Enden (4, 5) wenigstens eines Siebes (3), insbesondere eines in der Papierherstellung zu verwendenden Entwässerungssiebes, um ein endloses Sieb zu bilden, mit einem Stützstab (2), dessen Länge größer ist als die Breite des Siebes, und mit Haltemitteln, um zwei Siebenden während des Verbindens auf dem Stützstab (2) zu halten, so daß die eingreifenden Elemente (8, 9), die an den Stirnrändern (6, 7) der Siebenden (4, 5) längs einer zum jeweiligen Stirnrand parallelen Eingriffsachse (10, 11) ineinander eingreifen und in dieser Eingriffsstellung durch ein Halteelement (12) blockiert werden können, dadurch gekennzeichnet, daß der Stütstab (2) ortsfest ist und daß die Haltemittel auf dem ortsfesten Stützstab (2) zwei Paare von parallelen ersten Verbindungsmitteln (13, 14 und 15, 16), die symmetrisch beidseits einer Ebene (17) angeordnet sind, die nach beendetem Verbinden das Band entlang einer zu seiner Längsrichtung senkrechten Spur schneidet, wobei alle ersten Verbindungsmittels wechselweise gleich sind und der Abstand (d, D) zwischen ihnen und der genannten Ebene (17) konstant bleibt, und an jedem Ende (4, 5) des Siebes wenigstens ein zweites Verbindungsmittel (18 bis 21) aufweisen, das mit den ersten Verbindungsmitteln (13, 14 und 15,16) des Stützstabes (2) derart zusammenwirken kann, daß es mit ihnen eine lösbare Verbindung bildet, wobei jedes zweite Verbindungsmittel (18 bis 21) parallel zum benachbarten Endrand (6, 7) des Siebendes in einem konstanten Abstand (d, D) von der jeweiligen Eingriffsachse (10, 11) angeordnet ist, der gleich dem Abstand (d, D) zwischen einem der ersten Verbindungsmittel (13, 14 und 15, 16) eines der beiden obgenannten Paare und der genannten Symmetrieebene (17) ist.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß jedes Siebende (4, 5) mit einem Paar von zweiten Verbindungsmitteln (18, 19 und 20,21) versehen ist, wobei eines dieser zweiten Verbindungsmittel auf einer Seite des Siebes in einem Abstand (d) von der Eingriffsachse (10, 11) angeordnet ist, der dem Abstand zwischen einem der ersten Verbindungsmittel (13 bis 16) eines der zwei obgenannten Paare und der genannten Symmetrieebene (17) gleich ist, wogegen das andere der zweiten Verbindungsmittel (18 bis 21) auf der anderen Seite des Siebes in einem Abstand (D) von eben dieser Eingriffsachse (10, 11) angeordnet ist, der gleich ist dem Abstand zwischen dem anderen der ersten Verbindungsmittel (13 bis 16) des vorgenannten Paares und der genannten Symmetrieebene (17).
3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Sieb an jedem seiner Enden mit einem zweiten Verbindungsmittel versehen ist, wobei diese zweiten Verbindungsmittel auf der gleichen Seite des Siebes angeordnet sind.
4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die zwei Paare erster Verbindungsmittel (13 bis 16) alle beide auf der gleichen Seite des Stützstabes (2) vorgesehen sind.
5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Stützstab (2) als erste Verbindungsmittel Nuten (13 bis 16) gleichmäßiger und gleicher Gestalt besitzt, die nach oben hin offen sind und die sich über die gesamte Länge des Stützstabes erstrecken, und daß jedes Siebende (4, 5) als zweites Verbindungsmittel mit wenigstens einer Leiste (18 bis 21) versehen ist, mit einer Form, die durchgehend jener der Nuten (13 bis 16) komplementär ist, die sich über die gesamte Breite des Bandes (3) erstreckt, und die durch einfache Bewegung von oben nach unten in ihre entsprechende Nut eindringt.
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß der Stützstab (2) ein genutetes Profil aus einem verformungsbeständigen Werkstoff, insbesondere aus Metall oder hartem Kunststoff ist, und daß die Leisten (18 bis 21) Profile sind, von welchen wenigstens der Teil (22), der mit den Nuten (13 bis 16) des Profils in Berührung kommen soll, aus einem verformungsbeständigen Werkstoff, insbesondere aus Metall oder Hartkunststoff besteht.
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die Leisten (18 bis 21) U-Profile (22) aus einem verformungsbeständigen Werkstoff sind, wobei die Vertiefung des U mit einem Werkstoff gefüllt ist, der eine leicht lösbare Befestigung der Leiste am Sieb (3) erlaubt.
8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Leisten (18 bis 21) aus einem U-Profil aus Metall, vorteilhafterweise aus Aluminium und aus einem Füllkern für die Vertiefung des U aus Holz oder aus Kunststoff bestehen und daß jede Leiste am Sieb (3) durch einen Nagel, eine Klammer oder ein analoges Mittel (23) lösbar befestigt ist.
9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß sie eine Vorrichtung zum Herausziehen der Nägel, Klammern oder analogen Mitteln (23) nach dem Verbinden des Siebes besitzt, die durch ein Filzband (24) gebildet wird, das zusammen mit der Leiste (18 bis 21) auf der dem Sieb (3) gegenüberliegenden Seite befestigt ist.
EP86200250A 1985-03-15 1986-02-19 Vorrichtung zum Zusammenfügen der Enden eines Bandes zum Formen eines endlosen Bandes Expired EP0196686B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86200250T ATE38400T1 (de) 1985-03-15 1986-02-19 Vorrichtung zum zusammenfuegen der enden eines bandes zum formen eines endlosen bandes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8503846 1985-03-15
FR8503846A FR2578868B1 (fr) 1985-03-15 1985-03-15 Dispositif de jonction d'extremites de toile pour former une bande continue.

Publications (2)

Publication Number Publication Date
EP0196686A1 EP0196686A1 (de) 1986-10-08
EP0196686B1 true EP0196686B1 (de) 1988-11-02

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ID=9317232

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Application Number Title Priority Date Filing Date
EP86200250A Expired EP0196686B1 (de) 1985-03-15 1986-02-19 Vorrichtung zum Zusammenfügen der Enden eines Bandes zum Formen eines endlosen Bandes

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EP (1) EP0196686B1 (de)
AT (1) ATE38400T1 (de)
DE (1) DE3661085D1 (de)
FR (1) FR2578868B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8630243D0 (en) * 1986-12-18 1987-01-28 Scapa Porritt Ltd Dryer fabric seaming

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469599A1 (fr) * 1979-11-12 1981-05-22 Muller Sa Manufacture Joseph Procede et dispositif de jonctionnement de deux extremites de bande
SE435740B (sv) * 1983-03-01 1984-10-15 Nordiskafilt Ab Anordning for hopfogning av band

Also Published As

Publication number Publication date
EP0196686A1 (de) 1986-10-08
ATE38400T1 (de) 1988-11-15
FR2578868B1 (fr) 1988-09-16
DE3661085D1 (en) 1988-12-08
FR2578868A1 (fr) 1986-09-19

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