EP1065313B1 - Dispositif pour séparer et enfiler la bande directrice - Google Patents

Dispositif pour séparer et enfiler la bande directrice Download PDF

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Publication number
EP1065313B1
EP1065313B1 EP00107676A EP00107676A EP1065313B1 EP 1065313 B1 EP1065313 B1 EP 1065313B1 EP 00107676 A EP00107676 A EP 00107676A EP 00107676 A EP00107676 A EP 00107676A EP 1065313 B1 EP1065313 B1 EP 1065313B1
Authority
EP
European Patent Office
Prior art keywords
separating
strip
air
transfer device
plate
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
EP00107676A
Other languages
German (de)
English (en)
Other versions
EP1065313A3 (fr
EP1065313A2 (fr
Inventor
Peter Haider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Paper Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1065313A2 publication Critical patent/EP1065313A2/fr
Publication of EP1065313A3 publication Critical patent/EP1065313A3/fr
Application granted granted Critical
Publication of EP1065313B1 publication Critical patent/EP1065313B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G9/00—Other accessories for paper-making machines
    • D21G9/0063—Devices for threading a web tail through a paper-making machine
    • D21G9/0072—Devices for threading a web tail through a paper-making machine using at least one rope

Definitions

  • the invention relates to a device for separating and transferring a lead-in strip to be threaded into a machine for producing and / or treating a material web, in particular paper or board web, with a separating device and a transfer device which serves to guide the insertion strip to a subsequent one after separation Device of the machine to convict.
  • Such a device can serve, for example, to thread a paper web into a paper machine. Due to the large web width, it is usually not possible to introduce the paper web in full width. From the web, therefore, an insertion strip is cut, which is threaded into the paper machine and subsequently pulls the full width of the paper web after itself.
  • the Einfädelvorgang takes place when starting the paper machine or after a web break.
  • the device in question can be used practically anywhere on the paper machine, e.g. at the end of the dryer section or between a calender and a winding device.
  • a guiding and separating device which has a baffle and a distribution pipe associated therewith with air nozzles. The latter act as a separator.
  • a blow pipe arranged above the baffle is provided for transferring the severed paper web tip into a cable shears.
  • the insertion strip is severed by means of an air or water jet cutter. Subsequently, the insertion strip is deflected to a strip running direction in front of the separating device arranged baffle, which is acted upon to continue the web along this sheet tangentially by an air flow.
  • the strip separation takes place by means of two counter-rotating knives. These rotating knives the Ein IndustriesstMail is again supplied by a pivotable baffle.
  • the separating device comprising the rotating knives is pivotable in the region of a vacuum belt, by means of which the introduction strip is transported further following the separation process. After a respective separation process, the separator is again pivoted away from the vacuum belt.
  • the aim of the invention is to provide a device of the type mentioned, which is not only inexpensive to produce, but also a has relatively compact structure and in particular can be easily integrated, for example, in an existing dryer section. In addition, it should be used in the simplest possible way both for conversions and new plants.
  • This object is achieved according to the invention in that the separating device and the transfer device are mounted on a common plate on which the lead-in strip is guided before separation and can be prestressed for the separation process, and in that the transfer device in strip running direction (L) arranged in front of the separating device is.
  • the device Due to this design results in a total of extremely simple and compact construction for the entire device.
  • the device is not only inexpensive to produce, it can be easily integrated in particular even in an existing dryer section. With the solution according to the invention, a higher flexibility is also achieved with regard to the possible applications. Thus, the device according to the invention can be used without problems both in conversions and in new plants.
  • the plate is preferably fixedly attachable to a scraper bar. A pivoting of the plate is therefore no longer necessary.
  • the transfer device is formed by an air transfer device.
  • the insertion strip facing side of the plate can be acted upon at least substantially tangentially with a corresponding Blas Kunststoffstrom.
  • At least one air guide plate is provided on the side of the plate facing the insertion strip for pretensioning the lead-in strip in the strip running direction behind the separating device.
  • the air guide plate with respect to the insertion strip facing plate surface is preferably inclined so that the insertion strip is lifted from this plate surface and passed through the separation region of the separator accordingly. It is thus ensured that the insertion strip can then be reliably separated.
  • at least two in the strip running direction successively arranged baffles are provided.
  • the transfer device provided as an air transfer device comprises a plurality of blowing nozzles. These can be adjustable and accordingly movable.
  • the air transfer device comprises an air blow tube with at least one row of blow nozzles extending parallel to the tube axis.
  • at least a part of the blowing nozzles with respect to the air blowing tube can be adjustable or movable.
  • the air blowing tube can be adjustable and rotatable about its axis.
  • blowing air flow required for stabilizing and / or biasing the lead-in strip can advantageously be generated by means of appropriately adjustable blowing nozzles of the air-transfer device, wherein the lead-in strip is preferably to be prestressed. In principle, however, it is also conceivable to provide separate blowing nozzles for such stabilization and prestressing.
  • the separating device can be designed in particular for the execution of a shear cut and / or a parallel cut.
  • the separating device comprises at least two, in particular knife-like separating elements, which are preferably mounted adjustable on two relatively movable frame parts.
  • the two frame parts are pivotable relative to each other.
  • the separating elements of the separating device are at least partially formed by smooth cutting elements. In principle, however, these separating elements can at least partially also be formed by perforated and / or toothed cutting elements.
  • the device 10 shown schematically in Figures 2 and 3 is used for separating and transferring a cut from a web insertion strip 12 which is to be threaded into a machine for producing and / or treatment of a material web.
  • the insertion strip 12 is cut from a paper web and the device 10 is arranged in the discharge area of a drying section of the drying section of the respective paper machine 14 (compare, in particular, FIG.
  • the device 10 comprises a separating device 16 (cf., in particular, also FIG. 1) and a transfer device, in the present case an air transfer device 18, which serves to transfer the insertion strip 12 after separation to a downstream device of the paper machine.
  • a transfer device in the present case an air transfer device 18, which serves to transfer the insertion strip 12 after separation to a downstream device of the paper machine.
  • the insertion strip 12 is transferred to a cable shears 20, which is formed by an inner cable 20 'and an outer cable 20 ", which are brought together accordingly (see Figure 1).
  • the separator 16 and the air transfer device 18 are mounted on a common rigid plate 22 on which the insertion strip 12 is guided before separation and biased for the separation process.
  • the plate 22 is fixedly attached to a scraper bar 24.
  • the doctor blade 24 carries a scraper 26, also referred to as a scraper blade, which serves to remove the paper web from the drying cylinder 14 during startup or after a web break.
  • a scraper blade also referred to as a scraper blade, which serves to remove the paper web from the drying cylinder 14 during startup or after a web break.
  • the paper web already runs off the drying cylinder 14 before the scraper 26, wherein it is in particular fed to a web guide roll or the like, in order to be guided over this to a follow-up device such as a calender.
  • an insertion strip 12 is cut on one of the two edges of the paper web, for example by means of a lace cutter. This is first led away before actuation of the device 10 via the scraper 26 and the plate 22 down.
  • the air transfer device 18 is arranged in the strip running direction L in front of the separating device 16.
  • this insertion strip 12 facing side of the plate 22 is at least substantially tangentially acted upon by a corresponding Blas Kunststoffstrom, for example, by appropriately adjustable tuyeres 28th is generated, which may be provided in the present embodiment in the region of the air transfer device 18 and, for example, this can be assigned. In principle, however, separate nozzles may also be provided for producing this blowing air flow serving to stabilize the introduction strip 12.
  • the relevant blast air flow applies to the insertion strip 12 facing side of the plate 22, which he follows in the strip running direction L due to the so-called Coanda effect.
  • On the plate 22 facing the underside of the insertion strip 12 is formed as a result of the air flow, a negative pressure, so that the insertion strip 12 is applied to the plate 22 and thus optimally guided by this.
  • At least one air guide plate 30 is arranged on the side of the plate 22 facing the lead-in strip 12 in the strip running direction L behind the separating device 18.
  • two in the strip running direction L successively arranged air baffles 30 are provided.
  • the two air guide plates 30 extending transversely to the strip running direction L are inclined with respect to the plate surface facing the introduction strip 12 in such a way that the introduction strip 12 is lifted off this plate surface and passed through the separating region 32 (see FIG. This ensures that the insertion strip 12 is then severed reliably.
  • the air transfer device 18 comprises a plurality of nozzles 28, which are adjustable in the present case and correspondingly movable.
  • the air transfer device 18 comprises an air blow pipe 34 with at least one row of blowing nozzles 28 extending parallel to the pipe axis. At least a part of the blowing nozzles 28 is adjustable or movable relative to the air blowing pipe 34.
  • the air tube itself can be adjusted, i. for example, be rotatable about its axis.
  • the air blower tube 34 for example, rotated so and the nozzles 28 are aligned so that there is a parallel to the strip running direction L directed Blas Kunststoffstrom to stabilize the Ein IndustriesstMails.
  • Air is supplied to the air-blowing tube 34 laterally in the direction of the arrow F (cf., FIG. 2).
  • Blas Kunststoffstrom is generated for example via appropriately adjustable nozzles 28 of the air transfer device 34, may be provided to stabilize and bias the Ein IndustriesstMails 12 basically also from this air transfer device 34 separate nozzles.
  • the separating device 16 may optionally be designed for the execution of a shear cut and / or a parallel cut.
  • the separating device 16 comprises two, in particular knife-like separating elements 36, 38, which are preferably mounted adjustably on two frame parts 40, 42 that are movable relative to one another (cf., in particular, FIG.
  • the two frame parts 40, 42 are pivotable about an axis 44 relative to each other.
  • the frame part 40 is firmly attached to the plate 22 (see also Figures 2 and 3), while the other frame part 42, starting from the open state shown in Figure 1 to the frame member 40 is pivoted upwards.
  • a corresponding drive such as, for example, at least one cylinder / piston unit or the like can be provided, which can be controlled accordingly by a control as soon as the insertion strip 12 is stabilized on the plate 22 and prestressed in the desired manner.
  • the two knife-like separating elements 36, 38 via adjustable screws 46, 48 and / or the like adjustable on the frame parts 40, 42 are mounted.
  • the knife-like separating elements 36, 38 of the separating device 18 may be formed, for example, by smooth cutting elements or by perforated and / or toothed cutting element.
  • the separating device 20 can be actuated correspondingly, in particular via a control device. Immediately after the separation process coming from the drying cylinder 14 insertion strip is then transferred by the air transfer device 18 to the cable shears 20.

Landscapes

  • Paper (AREA)
  • Replacement Of Web Rolls (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

Claims (19)

  1. Dispositif (10) pour séparer et transférer une bande directrice (12) à enfiler dans une machine de fabrication et/ou de traitement d'une nappe de matériau, en particulier une nappe de papier ou de carton, comprenant un dispositif de séparation (16) et un dispositif de transfert (18), qui sert à transférer la bande directrice (12) après sa séparation à un dispositif suivant (20) de la machine,
    caractérisé en ce que
    le dispositif de séparation (16) et le dispositif de transfert (18) sont montés sur une plaque commune (22) sur laquelle la bande directrice (12) est guidée avant la séparation et peut être précontrainte pour l'opération de séparation, et en ce que le dispositif de transfert (18) est disposé avant le dispositif de séparation (16) dans la direction d'avance de la bande (L).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    la plaque (22) peut être montée fixement sur une barre de racloir (24).
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    le dispositif de transfert est formé par un dispositif de transfert à air (18).
  4. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    pour stabiliser la bande directrice (12) avant l'opération de séparation, le côté de la plaque (22) tourné vers la bande directrice (12) peut être sollicité au moins essentiellement tangentiellement avec un courant d'air de soufflage correspondant.
  5. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    pour précontraindre la bande directrice (12) dans la direction d'avance de la bande (L) derrière le dispositif de séparation (16), au moins une tôle directrice d'air (30) est prévue sur le côté de la plaque (22) tourné vers la bande directrice (12).
  6. Dispositif selon la revendication 5,
    caractérisé en ce que
    la tôle directrice d'air (30) est inclinée par rapport à la surface de la plaque tournée vers la bande directrice (12) de telle sorte que la bande directrice (12) soit soulevée par cette surface de plaque et soit guidée de manière correspondante à travers la région de séparation (32) du dispositif de séparation (16).
  7. Dispositif selon la revendication 5 ou 6,
    caractérisé en ce que
    l'on prévoit au moins deux tôles directrices d'air (30) disposées l'une derrière l'autre dans la direction d'avance de la bande (L).
  8. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le dispositif de transfert prévu en tant que dispositif de transfert à air (18) comprend plusieurs buses de soufflage (28).
  9. Dispositif selon la revendication 8,
    caractérisé en ce que
    les buses de soufflage (28) sont ajustables et à cet effet déplaçables en conséquence.
  10. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le dispositif de transfert à air (18) comprend un tube de soufflage d'air (34) avec au moins une série de buses d'air s'étendant parallèlement à l'axe du tube.
  11. Dispositif selon la revendication 10,
    caractérisé en ce qu'au
    moins une partie des buses de soufflage (28) est ajustable ou déplaçable par rapport au tube de soufflage d'air (34).
  12. Dispositif selon la revendication 10 ou 11,
    caractérisé en ce que
    le tube de soufflage d'air (34) est ajustable et à cet effet peut tourner autour de son axe.
  13. Dispositif selon l'une quelconque des revendications 8 à 12,
    caractérisé en ce que
    le courant d'air de soufflage nécessaire pour stabiliser et/ou précontraindre la bande directrice (12) peut être produit par des buses de soufflage (28) ajustables en conséquence du dispositif de transfert à air (18), la bande directrice (12) étant de préférence précontrainte.
  14. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le dispositif de séparation (16) est conçu pour la réalisation d'une découpe par cisaillement et/ou d'une découpe parallèle.
  15. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le dispositif de séparation (16) comprend au moins deux éléments de séparation notamment de type couteaux (36, 38), qui sont de préférence ajustables et montés sur deux parties de cadre mobiles l'une par rapport à l'autre (40, 42).
  16. Dispositif selon la revendication 15,
    caractérisé en ce que
    les deux parties de cadre (40, 42) peuvent pivoter l'une par rapport à l'autre.
  17. Dispositif selon la revendication 15 ou 16,
    caractérisé en ce que
    les éléments de séparation (36, 38) sont montés par le biais de vis de réglage (46, 48) et/ou similaires, de manière ajustable sur les parties de cadre (40, 42).
  18. Dispositif selon l'une quelconque des revendications 15 à 17,
    caractérisé en ce que
    les éléments de séparation (36, 38) du dispositif de séparation (18) sont au moins en partie formés par des éléments de coupe lisses.
  19. Dispositif selon l'une quelconque des revendications 15 à 18,
    caractérisé en ce que
    les éléments de séparation (36, 38) du dispositif de séparation (18) sont formés au moins en partie par des éléments de coupe perforés et/ou dentés.
EP00107676A 1999-06-29 2000-04-10 Dispositif pour séparer et enfiler la bande directrice Expired - Lifetime EP1065313B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19929927A DE19929927A1 (de) 1999-06-29 1999-06-29 Vorrichtung zum Trennen und Überführen eines Einführstreifens
DE19929927 1999-06-29

Publications (3)

Publication Number Publication Date
EP1065313A2 EP1065313A2 (fr) 2001-01-03
EP1065313A3 EP1065313A3 (fr) 2001-04-11
EP1065313B1 true EP1065313B1 (fr) 2006-07-05

Family

ID=7913029

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00107676A Expired - Lifetime EP1065313B1 (fr) 1999-06-29 2000-04-10 Dispositif pour séparer et enfiler la bande directrice

Country Status (3)

Country Link
US (1) US6394331B1 (fr)
EP (1) EP1065313B1 (fr)
DE (2) DE19929927A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10115618A1 (de) * 2001-03-26 2002-10-02 Voith Paper Patent Gmbh Verfahren und Vorrichtung zum Überführen einer Bahn
CA2413104A1 (fr) * 2002-11-28 2004-05-28 Voith Paper Patent Gmbh Methode et appareil de transfert de bobines de papier
US7117775B2 (en) * 2002-12-12 2006-10-10 Voith Paper Patent Gmbh Method and apparatus for transferring a paper web
FI125032B (fi) * 2011-06-07 2015-04-30 Valmet Technologies Inc Sovitelma ja menetelmä päänviennissä kuiturainakoneella
EP3137757B1 (fr) 2014-05-01 2019-07-10 Briggs & Stratton Corporation Système de régulateur électronique et système de détection de charge

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3143016A (en) * 1960-12-28 1964-08-04 West Virginia Pulp & Paper Co Webcutting mechanism with forced air work and product transfer means
US3355349A (en) * 1964-12-14 1967-11-28 Andrew G Devlin Apparatus for conveying lead strip from driers to calenders in paper-making
US3999696A (en) * 1975-05-27 1976-12-28 Crown Zellerbach Corporation Web threading system
FI62695C (fi) * 1981-05-15 1983-02-10 Valmet Oy Anordning i en pappersmaskin foer kapning och styrning av en pappersbanans kantremsa
US4505412A (en) * 1983-10-31 1985-03-19 Crown Zellerbach Corporation Pneumatic conveyor system for flexible webs
US4542842A (en) * 1983-10-31 1985-09-24 Crown Zellerbach Corporation Pneumatic conveying method for flexible webs
FI69144C (fi) * 1984-05-04 1985-12-10 Valmet Oy Anordning i en pappersmaskin vid styrningen av banans spetsdragningsband
FI78528C (fi) 1988-01-26 1989-08-10 Valmet Paper Machinery Inc Foerfarande och anordning foer styrning av pappersbanans spetsdragningsband fraon pressens slaetytade vals eller motsvarande.
US4904344A (en) * 1989-04-17 1990-02-27 Beloit Corporation Automatic web threading apparatus and method
DE3924897A1 (de) 1989-07-27 1991-02-07 Escher Wyss Gmbh Vorrichtung zum ueberfuehren und trennen eines ueberfuehrstreifens einer papierbahn
US5205504A (en) * 1989-11-10 1993-04-27 Mitsubishi Jukogyo Kabushiki Kaisha Auto-threading apparatus
DE3941242A1 (de) * 1989-12-14 1991-06-20 Voith Gmbh J M Fuehrungsplatte zum einfaedeln einer bahn
CA2028443C (fr) 1990-10-24 1996-04-30 Stanley Hui Mah Dispositif de mise en route de l'amorce du papier par rotation inversee des couteaux
US5600897A (en) * 1993-08-06 1997-02-11 J.M. Voith Gmbh Mixed dryer section including single-tier and double-tier drying groups with automatic ropeless threading
DE4409660A1 (de) 1994-03-21 1994-08-18 Voith Gmbh J M Streifenabschlag- und Überführeinrichtung
DE19713540A1 (de) * 1997-04-01 1998-10-08 Voith Sulzer Papiermasch Gmbh Streifenabschlag- und Überführeinrichtung sowie Verfahren zum Abschlagen und Überführen eines Einfädelstreifens
DE19747835C2 (de) * 1997-10-22 2001-06-28 Joerg Partzsch Vorrichtung zur Überführung und Zertrennung einer Papierbahnspitze in einer Papiermaschine
CA2254319C (fr) * 1998-11-18 2007-07-24 Paprima Industries Inc. Appareil de guidage de transfert de pointe directionnel

Also Published As

Publication number Publication date
DE19929927A1 (de) 2001-01-04
DE50013110D1 (de) 2006-08-17
EP1065313A3 (fr) 2001-04-11
EP1065313A2 (fr) 2001-01-03
US6394331B1 (en) 2002-05-28

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