EP1067073B1 - Appareil pour la séparation de rubans juxtaposés, en cours de transport, en particulier des rubans métalliques - Google Patents

Appareil pour la séparation de rubans juxtaposés, en cours de transport, en particulier des rubans métalliques Download PDF

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Publication number
EP1067073B1
EP1067073B1 EP00112007A EP00112007A EP1067073B1 EP 1067073 B1 EP1067073 B1 EP 1067073B1 EP 00112007 A EP00112007 A EP 00112007A EP 00112007 A EP00112007 A EP 00112007A EP 1067073 B1 EP1067073 B1 EP 1067073B1
Authority
EP
European Patent Office
Prior art keywords
strips
separating
strip
separating unit
shafts
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
EP00112007A
Other languages
German (de)
English (en)
Other versions
EP1067073A3 (fr
EP1067073A2 (fr
Inventor
Wolfgang Franz
Michael Ullrich
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.)
Sundwig GmbH
Original Assignee
Sundwig 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 Sundwig GmbH filed Critical Sundwig GmbH
Publication of EP1067073A2 publication Critical patent/EP1067073A2/fr
Publication of EP1067073A3 publication Critical patent/EP1067073A3/fr
Application granted granted Critical
Publication of EP1067073B1 publication Critical patent/EP1067073B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/006—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only winding-up or winding-off several parallel metal bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/02—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with longitudinal slitters or perforators

Definitions

  • the invention relates to a device for separating conveyed strips lying next to one another, in particular consisting of metal.
  • Devices of this type are used, for example, in production lines in which a metal strip of large width is longitudinally divided into a multiplicity of strips, which are then wound up into coils in a reel station.
  • the function of the separating devices is to keep the strips in a spaced apart position during the winding. This ensures that, on the one hand, there is no contact between the individual strips during the winding of the coils and, on the other hand, that the strips are always fed to the reel device in the correct position.
  • a problem with the separation of the strips is that at the beginning of the winding process the individual strip beginnings coming from the slitting device have to be moved into a position separated from the other strips in which they are held by the separating device during the winding process. This separation process is usually carried out by hand. Because of the particular Metallic strips with their own stiffness not only require a high level of physical exertion, but also entail the risk of injury. In addition, there is a high expenditure of time for inserting the beginning of the strip into the separating position.
  • a device for separating the beginnings of strips produced by slitting from a metal strip in which the strips are separated by means of an automatically operating separation unit.
  • the separating unit is equipped with clamping devices that can be moved on a common axis, one of which is assigned to each strip start. After the beginning of the strip is clamped in the clamping devices, the clamping devices are simultaneously shifted on the axis, so that the beginning of the strip is spread apart in the manner of a fan.
  • the movement of the clamping device along the axis is coordinated via threads of different pitches so that all of the beginning of the strip reach their separated position at the same time.
  • the advantage of the known device explained above is that it enables automated separation of the strips within a short working interval.
  • the disadvantage is that a considerable amount of construction is required.
  • the known device is only suitable for separating certain ranges of strips.
  • the number and positioning of the clamping elements and their travel distance during the separation must be adapted to the changed number and the changed dimensions of the new program.
  • the object of the invention is to provide a device of the type explained above, in which the effort for separating the beginning of the strip is reduced at the start of the separation process.
  • a device for separating strips which are conveyed lying next to one another, in particular made of metal, which is equipped with a separating unit which seizes the strips sequentially one after the other in the area of their start assigned to the separating unit and into a position separated from the next adjacent strip brings in which there is a distance between the respective strip and the strip closest to it.
  • the strips can be separated quickly and precisely.
  • the effort required for this is low because only a device that is technically simple to manufacture and control takes over the task of separation. In this way, the invention enables it to be inexpensive and to separate the beginning of the strip in a short time with little technical effort.
  • the movement of the singling unit during the singling expediently runs essentially transversely to the conveying direction of the strips.
  • This can be achieved in a simple manner, for example, in that the singling unit can be moved along a movement axis arranged transversely to the conveying direction of the strips.
  • the separating unit follows a slightly curved path which runs in a plane arranged parallel to the plane of the conveying path of the strips.
  • the order and the time required for the separation depends, among other things, on the number of separation units used. To shorten the time required, it can be expedient if a plurality of singling units simultaneously bring the strips assigned to them into the separated position assigned to them in the manner according to the invention.
  • the separating unit has a linear drive for placing and lifting off a gripping element on the surface of the strip in question assigned to it.
  • the gripping elements can be suction elements, magnetic elements or the like. Are bigger Holding forces required during the separation, it is expedient if a pair of gripping elements is assigned to a strip, and if the first gripping element of this pair attaches to the top of the relevant strip, while the second gripping element of the pair is assigned to the underside of the strip in question ,
  • a pre-separation device is arranged upstream of the separation unit in the direction of conveyance of the strips. This has the effect that the strips which are brought in, for example emerging from a slitting shear and lying close to one another, are brought to a certain distance from one another as soon as they leave the slitting device and before they are gripped by the separating unit and moved into their final separated position. In this way, the risk of damage to the tapes is reduced to a minimum.
  • a pre-separating device can, for example, have shafts which exert a force on the strips which is directed transversely to the conveying direction of the strips. Each strip can be assigned its own role.
  • the waves extend over the width of all the strips lying next to one another.
  • the forces directed in the lateral direction can be generated in that the shafts are conically shaped. This is also possible in that a thread is formed in the surface of the shafts, whereby the pitch of the thread advantageously increases in the direction of one of the two outer strips.
  • a pre-singling device is particularly helpful when a carriage can be moved between the pre-singling device and the singling unit, which is intended to guide the beginnings of the strips to the singling unit and to feed them to further processing after the singling.
  • This trolley can be used as a push-in device with which the strips can be fed for further processing after they have been separated. At the same time, it can be used as a transfer table during the transfer of the strips, via which the beginning of the strips reach the separating unit.
  • the invention is particularly suitable for use in a production line which is equipped with a slitting unit for dividing a strip, in particular a metal strip, into a plurality of strips lying next to one another if the device according to the invention is arranged behind the slitting unit in the conveying direction of the strips.
  • the production line in the conveying direction F comprises a slitting shear 1, a pre-separating device 2, a push-in wagon 3 and a separating device 4.
  • the slitting shear 1 has circular knives 5, 6 which continuously slices a steel strip B into a plurality of strips S1-S7 of different widths arranged next to one another.
  • the pre-separating device 2 is equipped with two shafts 7, 8 extending transversely to the conveying direction F over the width of the conveying path W of the strips S1-S7, of which one shaft 7 is arranged above and one shaft 8 below the strips S1-S7.
  • Each of the shafts 7, 8 has a polyurethane coating 7a, 8a on its surface. Starting from the middle of the longitudinal extent of the shafts 7, 8, two opposing threads, not shown here, are incorporated into the coatings 7a, 8a.
  • the pitch of the thread increases linearly in the direction of the shaft end assigned to the thread, so that the pitch is greatest at the respective shaft end.
  • the upper one of the shafts 7 is driven via a drive (also not shown) and into a position by means of an actuating device 9 can be raised in which it is located at a greater distance above the conveyor path W of the strips S1-S7.
  • the push-in carriage 3 can be moved on a running rail 10 which extends parallel to the conveying path W of the strips S1-S7. It has a clamping device 12 which can be tilted about an axis 11 and which can be moved automatically by means of an adjusting device (not shown) from an open position, shown in broken lines in FIG. 1, in which it does not exert any clamping force, into a closed position in which it presses the front free end of the strips S1 - S7.
  • a separating roller 14 is also fastened to a swivel arm 15, on which separating disks 14a are mounted at predetermined intervals corresponding to the width of the respective strips S1-S7.
  • the pivot arm 15 is pivotable about an axis 17.
  • the separating disks 14a of the separating roller are located with a partial section in the conveyor path W of the strips S1-S7, while in the pivoted-out position shown in broken lines in FIG. 1 they are arranged outside the conveyor path W.
  • the separating positions of the strips S1-S7 are predetermined by the separating disks 14a arranged on the separating roller 14.
  • the separating device 4 comprises a frame 20 which carries two guide rails 21, 22 which extend linearly over the width of the conveying path W.
  • the guide rail 21 arranged above the strips S1-S7 is arranged at a vertical distance from the conveyor path W of the strips S1-S7 that is larger than that maximum height of the push-in carriage 4 with the clamping device 12 closed.
  • the guide rail 22 positioned below the strips S1-S7 is arranged at a distance from the conveying path W of the strips S1-S7 which is greater than the greatest depth of the push-in carriage 4 when the separating disks are pivoted in. In this way, the push-in carriage 3 can be moved freely through the gap delimited by the guide rails 21, 22.
  • a separating unit 23, 24 can be moved on each of the guide rails 21, 22.
  • Each of the separating units 23, 24 comprises a holder 25, which is supported at its one end on the guide rail 21, 22 assigned to it.
  • a linear drive 26, which can be designed, for example, as a pneumatic or hydraulic cylinder.
  • a gripping element 27 can be placed on the upper or lower side of the strips S1-S7.
  • the position of the separating units 23, 24 along the guide rails 21, 22 assigned to them can be adjusted by means of a linear drive, not shown. Both this linear drive and the linear drives 26 of the separating units 23, 24 are connected to a control device, also not shown, via control lines (not shown).
  • Axial parallel to the guide rails 21, 22 and above them is also an axis 28 in the frame 20.
  • a hold-down bracket 29 is pivotally attached to the axis 28 and has a first section and a second section of approximately the same length has, which are arranged at right angles to each other.
  • Hold-down elements 30 designed in the manner of fingers are fastened to the free end of the hold-down support 29.
  • the hold-down carrier 29 can be pivoted automatically by means of actuating devices (not shown) from a first position pivoted away from the strips S1-S7, which is shown in broken lines in FIG S1 - S7 sits.
  • the upper shaft 7 of the pre-separating device 2 Before the beginning of a new batch of strips S1-S7 separated from the steel strip B by the slitting device 1, the upper shaft 7 of the pre-separating device 2 is brought into its raised position in order to enable the beginning of the strip to be introduced non-destructively into the open gap. As soon as the front end of the beginning of the strip has passed the pre-separation device 2, the upper shaft 7 is placed on the strips S1-S7 and rotated via the drive assigned to it. The threads worked into the polyurethane coating 7a, 8a of the shafts 7, 8 cause the strips to be driven apart in the lateral direction, with the high friction coefficient of the coating 7a, 8a ensuring reliable transmission of the shafts 7, 8a 8 generated transverse forces is guaranteed.
  • the hold-down support 29 is in its position pivoted in the direction of the strips, so that the hold-down elements 30 can be placed on the strips S1-S7.
  • the push-in trolley 3 After the beginning of the strip has passed the pre-separating device 2, it is guided to the separating device 4 by the push-in trolley 3 which has passed between the pre-separating device 2 and the separating device 4. In this situation, the push-in car 3 takes over the function of a transfer table conventionally provided at this point.
  • the separating units 23, 24 move from a rest position at one end of the guide rails 21, 22 to the strip S1 closest to them. Then the beginning of the relevant strip S1 is gripped with the gripping elements 27. While the separating units 23, 24 are moved with the strip S1 into the separated position assigned to the strip S1 between two separating disks 14a of the separating roller 14, the gripping elements 27 of the separating elements 23, 24 hold the strip S1 in place. After the separating position assigned to the strip S1 has been reached, the strip S1 is placed on the separating roller 14 in the space between two separating disks 14a. The hold-down element 30 assigned to this position is placed on the strip S1, so that the strip S1 is held in its separating position.
  • the clamping device 12 of the push-in carriage 3 is pivoted closed, so that the beginnings of the strips S1-S7 are fixed in the separated position. Then the hold-down bracket 29 swings open and the separating units 23, 24 move into their rest positions at the end of the guide rails 21, 22.
  • the push-in car 3 can now travel unhindered through the separating device 4 in order, for example, to push the beginnings of the strips S1-S7 into a downstream reel device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Advancing Webs (AREA)
  • Special Conveying (AREA)
  • Attitude Control For Articles On Conveyors (AREA)

Claims (22)

  1. Dispositif de séparation de bandes (S1-S7) en particulier en métal, transportées à plat côte à côte, comportant au moins une unité de séparation (23, 24) caractérise en ce que l'unité de séparation saisit les bandes (S1-S7) séquentiellement, l'une après l'autre, dans la zone de leur amorce associée à l'unité de séparation (23, 24), et les amène, en un mouvement qui est dirigé sensiblement transversalement à la direction de transport (F) des bandes (S1-S7), dans une position séparée de la bande (S1-S7) la plus proche dans chaque cas, dans laquelle il existe une distance entre la bande (S1-S7) considérée et la bande (S1-S7) qui lui est la plus proche.
  2. Dispositif selon la revendication 1, caractérisé en ce que plusieurs unités de séparation (23, 24) amènent simultanément les bandes (S1-S7) qui leur sont respectivement associées dans une position séparée affectée à celles-ci.
  3. Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'unité de séparation (23, 24) est déplaçable linéairement le long d'un axe de déplacement (21, 22) disposé transversalement à la direction de transport (F) des bandes (S1-S2).
  4. Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'unité de séparation (23, 24) comporte un dispositif d'entraînement linéaire pour placer et relever un élément de préhension (27) sur la surface qui lui est associée de la bande (S1-S7) concernée.
  5. Dispositif selon la revendication 4, caractérisé en ce qu'une paire d'éléments de préhension (27) est associée à chaque bande (S1-S7) et en ce que le premier élément de préhension (27) de cette paire se place sur la face supérieure de la bande (S1-S7) concernée, tandis que le deuxième élément de préhension (27) de la paire est associé à la face inférieure de la bande (S1-S7) concernée.
  6. Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'unité de séparation (23, 24) est fixée à un bras pivotant qui peut pivoter autour d'un axe de pivotement disposé transversalement à la direction de transport des bandes (S1-S7) et à distance de leur plan de transport.
  7. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il est prévu un dispositif presseur (29) qui maintient les bandes (S1-S7) dans leur position séparée.
  8. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'en amont de l'unité de séparation (23, 24) est disposé un chariot (3) déplaçable avec son axe parallèle à la direction de transport (F) des bandes (S1-S7), qui est prévu pour guider les amorces des bandes (S1-S7) vers l'unité de séparation (23, 24) et pour les amener, après séparation, à un traitement complémentaire.
  9. Dispositif selon la revendication 8, caractérisé en ce que le chariot (3) comporte un dispositif de serrage (12) pour serrer les bandes (S1-S7).
  10. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'en amont de l'unité de séparation (23, 27), dans la direction de transport des bandes (S1-S7), est disposé un dispositif de pré-séparation.
  11. Dispositif selon la revendication 10, caractérisé en ce que le dispositif de pré-séparation comporte des arbres qui exercent sur les bandes (S1-S7) une force dirigée transversalement à la direction de transport des bandes (S1-S7).
  12. Dispositif selon la revendication 11, caractérisé en ce qu'un arbre (7, 8) est disposé au-dessus et au-dessous de chacune des bandes (S1-S7) et en ce que l'axe de rotation des arbres (7, 8) s'étend sensiblement perpendiculairement à la direction de transport (F) des bandes (S1-S7).
  13. Dispositif selon la revendication 11 ou 12, caractérisé en ce que les arbres (7, 8) s'étendent sur la largeur de toutes les bandes (S1-S7) disposées côte à côte.
  14. Dispositif selon l'une des revendications 11 à 13, caractérisé en ce que les arbres (7, 8) sont de forme conique.
  15. Dispositif selon l'une des revendications 11 à 14, caractérisé en ce qu'au moins un filetage est formé dans la surface des arbres (7, 8).
  16. Dispositif selon la revendication 15, caractérisé en ce que le pas du filetage augmente en direction de l'une des deux bandes (S1, S7) extérieures.
  17. Dispositif selon l'une des revendications 11 à 16, caractérisé en ce que la surface des arbres (7, 8) présente un coefficient de friction élevé.
  18. Dispositif selon l'une des revendications 11 à 17, caractérisé en ce que la surface des arbres (7, 8) est constituée d'une matière plastique.
  19. Dispositif selon la revendication 18, caractérisé en ce que la matière plastique est un polyuréthanne.
  20. Dispositif selon l'une des revendications 10 à 19, caractérisé en ce que le chariot (3) est déplaçable entre le dispositif de pré-séparation (2) et l'unité de séparation (23, 24).
  21. Ligne de fabrication comportant une unité de division longitudinale (1) pour diviser une bande (B), en particulier une bande métallique, en un grand nombre de bandes (S1-S7) disposées côte à côte et comportant un dispositif (4) disposé, dans le sens de transport (F) des bandes (S1-S2), derrière l'unité de division longitudinale (1), pour séparer des bandes (S1-S7) en particulier en métal, transportées à plat côte à côte, selon l'une des revendications 1 à 20.
  22. Ligne de fabrication selon la revendication 21, caractérisée en ce que l'unité de division longitudinale (1) est une cisaille à lame circulaire comportant un grand nombre de lames circulaires (5, 6) disposées côte à côte et à distance les unes des autres pour diviser la bande (B).
EP00112007A 1999-07-06 2000-06-02 Appareil pour la séparation de rubans juxtaposés, en cours de transport, en particulier des rubans métalliques Expired - Lifetime EP1067073B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19931172A DE19931172C1 (de) 1999-07-06 1999-07-06 Vorrichtung zum Separieren von nebeneinander liegend geförderten, insbesondere aus Metall bestehenden Streifen
DE19931172 1999-07-06

Publications (3)

Publication Number Publication Date
EP1067073A2 EP1067073A2 (fr) 2001-01-10
EP1067073A3 EP1067073A3 (fr) 2002-07-10
EP1067073B1 true EP1067073B1 (fr) 2004-03-31

Family

ID=7913826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00112007A Expired - Lifetime EP1067073B1 (fr) 1999-07-06 2000-06-02 Appareil pour la séparation de rubans juxtaposés, en cours de transport, en particulier des rubans métalliques

Country Status (2)

Country Link
EP (1) EP1067073B1 (fr)
DE (2) DE19931172C1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2138088A1 (de) * 1971-07-30 1973-05-17 Thaelmann Schwermaschbau Veb Vorrichtung zum einfuehren von bandmaterial, insbesondere mehrerer bandmaterialstreifen
AT374714B (de) * 1980-02-15 1984-05-25 Voest Alpine Ag Vorrichtung zum fuehren der einzelnen streifen eines in laengsstreifen geteilten blechbandes
DE3405676C1 (de) * 1984-02-17 1985-06-13 Sundwiger Eisenhütte Maschinenfabrik Grah & Co, 5870 Hemer Vorrichtung zum Spreizen der Teilstreifen eines in einer Spaltanlage längsgeteilten Bandes
DE3820997A1 (de) * 1988-06-22 1989-12-28 Bwg Bergwerk Walzwerk Vorrichtung zum separieren von bandstreifen eines laengsgeteilten bandes, insbesondere metallbandes
DE29509516U1 (de) * 1995-06-14 1996-10-17 Beloit Technologies, Inc., Wilmington, Del. Separierungsvorrichtung für Aufwickelvorrichtungen für in mehrere Teilbahnen längsgeteilte Warenbahnen

Also Published As

Publication number Publication date
EP1067073A3 (fr) 2002-07-10
DE50005855D1 (de) 2004-05-06
DE19931172C1 (de) 2001-01-04
EP1067073A2 (fr) 2001-01-10

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