EP0379861A1 - Device for joining sheets together - Google Patents

Device for joining sheets together Download PDF

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Publication number
EP0379861A1
EP0379861A1 EP90100124A EP90100124A EP0379861A1 EP 0379861 A1 EP0379861 A1 EP 0379861A1 EP 90100124 A EP90100124 A EP 90100124A EP 90100124 A EP90100124 A EP 90100124A EP 0379861 A1 EP0379861 A1 EP 0379861A1
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EP
European Patent Office
Prior art keywords
web
strip
roll
running
pair
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
EP90100124A
Other languages
German (de)
French (fr)
Other versions
EP0379861B1 (en
Inventor
Karl Thievessen
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.)
Jagenberg AG
Original Assignee
Jagenberg AG
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 Jagenberg AG filed Critical Jagenberg AG
Priority to AT90100124T priority Critical patent/ATE82003T1/en
Publication of EP0379861A1 publication Critical patent/EP0379861A1/en
Application granted granted Critical
Publication of EP0379861B1 publication Critical patent/EP0379861B1/en
Anticipated expiration legal-status Critical
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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
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/20—Cutting-off the expiring web
    • 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
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1842—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact
    • B65H19/1847—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact taking place on the replacement roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1768—Book covers and the like

Definitions

  • the invention relates to a device for connecting the end of a material web running from a first winding roll to the beginning of the web of a new winding roll that is exchanged for the first winding roll, according to the preamble of patent claim 1.
  • splice devices which fix the end of the material web running to a processing machine at the beginning of the web of a new full roll. If the machine contains fixed holding devices for the winding rolls, the remaining roll is cut off when the processing machine is at a standstill, the separated end of the running web is held in place and, after the separated remaining roll has been removed and a new roll has been inserted, is attached to the new roll, e.g. B. glued.
  • a generic device is known from DE-PS 34 40 107, which has a storage device for storing a supply of web material of the running material web, a Cutting device for cutting through the running material web and between the cutting device and the storage device has a driven suction roller, which takes up a part of the stored stock of web material and brings it into pressure contact with the outer circumference of the new roll in order to start with the new roll, which is provided with an adhesive strip is provided to make an adhesive connection.
  • the suction roll is arranged on a swivel arm which has a pivot point above the maximum outer diameter of the new winding roll and which extends substantially horizontally in the rest position.
  • the device shown there requires separate drives for clamping the running web, the movement of the storage device, the rotating and swiveling movement of the suction roll, the cutting device and for switching on the suction air.
  • the cutting knife must be moved out of its cutting position, since this is in the area of the running web during unwinding.
  • the invention has for its object to provide a generic device that requires a smaller number of individual drives and thus easier to control and less susceptible to interference.
  • the device according to the invention requires only four drives to be controlled separately, namely one for each pair of swivel levers, for the cutting process and for the holding element for holding the cut end of the web.
  • the invention enables the arrangement of the cutting device outside of the course of the web during unwinding, so that it can be permanently installed.
  • Claim 2 contains a particularly advantageous position for the cutting device, since so no overhanging, not held web residue is generated, which could lead to problems when laying on the full roll.
  • a traversing knife according to claim 3 requires little space with reliable function.
  • the blowing device according to claim 4 prevents the web residue between the pressing element and the holding element when it is placed on the outside of the full roll from loosening the web from the holding element and thus adversely affecting the gluing process.
  • Claims 5 and 6 contain structurally particularly advantageous embodiments of the invention.
  • 1 to 3 show a side view of the structure and operation of a device according to the invention.
  • FIGS. 1-3 The embodiment according to FIGS. 1-3 is designed for use on unwinding machines for winding rolls made of paper webs which are wound on cardboard tubes.
  • unwinding machines are often arranged together in a frame, so that the stripped webs are brought together to form a multi-layer web and then further processed together, e.g. B. in a sheeter for making sheets of paper.
  • the web is drawn off from the top of a roll upwards.
  • the winding rolls are held by guide heads which can be moved into the sleeve and are mounted in a frame or side stands.
  • the splicing device according to the invention is fastened to longitudinal beams 1 of the frame of the unwinding machine located above the unwinding point.
  • the longitudinal beams 1 extend on both sides of the web guide 2 at a distance above the maximum diameter of a full roll 3 and are supported on stands, not shown.
  • the unwinding position of a full roll 3 is determined by guide heads 4 which can be moved into the central sleeve.
  • the guide heads 4 are mounted in bearing blocks and connected to a brake.
  • a guide roller 5 which extends across the working width, firmly supports the drawn web 6.1, 6.2 in the horizontal to the subsequent processing machine redirects.
  • the splicing device contains a transport rod 7 which extends across the working width and is fastened at both ends to the free end of a pivot lever 8.
  • the pivot levers 8 are articulated on the longitudinal members 1 on both sides of the web guide 2 so as to be pivotable about an axis 9 which is offset from the vertical by the position of the guide heads 4 at a short distance from the web running direction.
  • a piston-cylinder unit 10 attached to the side members 1 acts as a swivel drive on the levers 8.
  • the levers 8 are dimensioned and so articulated outside the web width that the transport rod 8 below the horizontal web guide 2 from a rest position 11, which is located in the web running direction behind the guide roller 5 and above the maximum diameter of the roller 3, downward against the web running direction -
  • Fig. 1 to the left - to an end position 12 (Fig. 2) can be pivoted, which is in the web running direction in front of a full roll and above this, but still at a distance below the longitudinal beam 1.
  • a web holding element 14 extending across the working width is fastened, which in the present exemplary embodiment is designed as a suction bar with a row of suction cups which are open at the bottom.
  • the levers 13 are pivotally articulated on the underside of the side members 1 about an axis 15 located in the vicinity of the guide roller 5 and have an upwardly angled extension, at the end of which as a swivel drive, a piston-cylinder unit also attached to the side members 1 16 attacks.
  • a pressure roller 17 extending across the working width is fastened to the pivot levers 13, and approximately in the middle between the holding device 14 and the pressure roller 17, a downward blowing blow pipe 18 extends over the working width, which is also on both sides is attached to the levers 13.
  • the stroke of the piston-cylinder unit 16 and the conditions on the levers 13 are chosen so that the pressure roller 17 extends from the outer circumference of a full roller 3.1 with a minimum diameter to the free area between the maximum diameter of the roller 3 and that immediately below the longitudinal beam 1 located web guides 2 can pivot.
  • the holding element 14 In the swiveled-up end position, the holding element 14 is located directly next to the cutting line of a knife 19 traversing across the working width, the guide 20 of which is attached to the underside of both longitudinal beams 1 and is arranged at a sufficient distance from the web guide 2 of subsequently drawn webs that they do not disturbs.
  • the knife 19 with its guide 20 is arranged in such a way that it can be swung around by the transport rod 7 on the outside, just like the swivel lever 13.
  • FIG. 1 shows the swivel arms 8, 13 in their rest position, in which none of the splice elements disrupt the course of the web 6.1, 6.2:
  • the transport rod 7 is in the rest position 11 in area kept clear of the guide roller 5 behind the web part 6.1 pulled upwards.
  • the swivel arms 13 are pivoted upward so that the pressure roller 17, the holding element 14 and the blow pipe 18 are located in the non-disturbing area above the course of the web 6.1 and below the web guide 2. Due to the unwinding, the diameter of the roll 3 decreases more and more and the course of the web 6.1 moves downward until a predetermined residual diameter 3.2 is reached, at which the unwinding process is stopped (FIG. 2).
  • the swivel arm 8 pivots clockwise, so that the transport rod 7 is moved from its rest position 11 and dips into the web 6.1.
  • the path 6. 3, 6. 4 shown in broken lines in FIG. 2 is reached.
  • the web part 6.4 lies both on the pressure roller 17 and also on the suction surfaces of the holding element 14 and the cutting line of the knife 19.
  • the web part 6.4 is held by switching on the suction blower for the holding element 14, and the knife 19 cuts the web 6.4 transversely.
  • the transport rod 7 is pivoted back into the rest position 11 with the levers 8 and then a new full roll 3 is hung in (FIG. 3).
  • a glue seam 21 for. B. prepared a double-sided adhesive tape, which is positioned when hanging the roll 3 in the area designated by A in Fig. 3.
  • the lever 13 is then pivoted downward until the pressure roller 17 rests under pressure on the outside of the roller 3.
  • the levers 13 are pivoted up into the rest position shown in FIG. 1 and the unwinding machine can be accelerated to full working speed.
  • the adhesive seam 21 does not have to be positioned exactly, but only within a certain area. This enables a very simple roll preparation of the new roll for the splicing process and it eliminates the need for complex control devices that the adhesive seam 21 for producing the adhesive connection, for. B. by rotating the full roll.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Connection Of Plates (AREA)
  • Confectionery (AREA)
  • Saccharide Compounds (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

A device for connecting the end of one strip of material (6) which is being taken off a first roll with the start of a strip from a new roll (3) on a take-off machine, which is replacing the first roll, with a cutter (19) to cut the strip (6) being taken off, a device to hold the strip end (6.4) produced by this, and to press the strip end to the outside circumference of the new roll (3) replacing the old roll, in order to produce an adhesive bond, is made much simpler in design by the fact that above the take-off point, in a frame, two pairs of pivot arms (8, 13), each parallel, are attached. One pair of pivot arms (8) carries a transport element (7) to lift part (6.4) of the strip being taken off, which can be pivoted opposite the strip movement direction, from a rest position (11) behind the strip part (6.1) being guided to the guide roller (5) in the strip movement direction, into an end position (12) which is located outside the area of a full roll (3). The second pair of pivot arms (13) carries a holder element (14) at its free end, and in front of it, a press-down element (17) for the lifted strip part (6.4), and can be pivoted from the end position (12) of the first pair of pivot arms (8) in the strip movement direction up to the outside circumference of a full roll (3).

Description

Die Erfindung betrifft eine Vorrichtung zum Verbinden des Endes einer von einer ersten Wickelrolle ablaufenden Materialbahn mit dem Bahnanfang einer gegen die erste Wickelrolle eingewechselten neuen Wickelrolle gemäß dem Oberbegriffes des Patentanspruchs 1.The invention relates to a device for connecting the end of a material web running from a first winding roll to the beginning of the web of a new winding roll that is exchanged for the first winding roll, according to the preamble of patent claim 1.

Bei Abwickelmaschinen für Wickelrollen aus Materialbahnen, z. B. Papier- oder Kartonbahnen, sind Spliceeinrichtungen bekannt, die das Ende der zu einer Verarbeitungsmaschine ablaufenden Materialbahn an dem Bahnanfang einer neuen vollen Rolle befestigen. Enthält die Maschine feststehende Haltevorrichtungen für die Wickelrollen, so wird bei stillstehender Verarbeitungsmaschine die Restrolle abgetrennt, das abgetrennte Ende der ablaufenden Bahn festgehalten und nachdem die abgetrennte Restrolle entfernt und eine neue Rolle eingesetzt wurde, an der neuen Rolle befestigt, z. B. angeklebt.In unwinding machines for winding rolls from material webs, e.g. As paper or cardboard webs, splice devices are known which fix the end of the material web running to a processing machine at the beginning of the web of a new full roll. If the machine contains fixed holding devices for the winding rolls, the remaining roll is cut off when the processing machine is at a standstill, the separated end of the running web is held in place and, after the separated remaining roll has been removed and a new roll has been inserted, is attached to the new roll, e.g. B. glued.

Um den Splice-Vorgang zu automatisieren, ist aus der DE-PS 34 40 107 eine gattungsgemäße Vorrichtung bekannt, die eine Speichereinrichtung zum Speichern eines Vorrates an Bahnmaterial der ablaufenden Materialbahn, eine Schneideinrichtung zum Durchtrennen der ablaufenden Materialbahn und zwischen der Schneideinrichtung und der Speichereinrichtung eine angetriebene Saugwalze aufweist, die einen Teil des gespeicherten Vorrates an Bahnmaterial aufnimmt und mit dem Außenumfang der neuen Rolle in Druckkontakt bringt, um mit dem Anfang der neuen Rolle, der mit einem Klebestreifen versehen ist, eine Klebeverbindung herzustellen. Die Saugwalze ist an einem Schwenkarm angeordnet, der einen Anlenkpunkt oberhalb des maximalen Außendurchmessers der neuen Wickelrolle aufweist und sich in Ruhestellung im wesentlichen horizontal erstreckt. Die dort gezeigte Vorrichtung benötigt für das Festklemmen der ablaufenden Bahn, die Bewegung der Speichereinrichtung, die Dreh- und Schwenkbewegung der Saugwalze, die Schneideinrichtung und zum Einschalten der Saugluft jeweils eigene Antriebe. Zusätzlich muß das Trennmesser aus seiner Schneidstellung wegbewegt werden, da sich diese im Bereich der ablaufenden Bahn während des Abwickelns befindet. Diese notwendigen Antriebe verlangen eine aufwendige Steuereinrichtung, die ihre Betätigung exakt auslöst.In order to automate the splice process, a generic device is known from DE-PS 34 40 107, which has a storage device for storing a supply of web material of the running material web, a Cutting device for cutting through the running material web and between the cutting device and the storage device has a driven suction roller, which takes up a part of the stored stock of web material and brings it into pressure contact with the outer circumference of the new roll in order to start with the new roll, which is provided with an adhesive strip is provided to make an adhesive connection. The suction roll is arranged on a swivel arm which has a pivot point above the maximum outer diameter of the new winding roll and which extends substantially horizontally in the rest position. The device shown there requires separate drives for clamping the running web, the movement of the storage device, the rotating and swiveling movement of the suction roll, the cutting device and for switching on the suction air. In addition, the cutting knife must be moved out of its cutting position, since this is in the area of the running web during unwinding. These necessary drives require a complex control device that triggers their actuation exactly.

Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemäße Vorrichtung zu schaffen, die eine geringere Anzahl von Einzelantrieben benötigt und so einfacher zu steuern und weniger anfällig gegen Störungen ist.The invention has for its object to provide a generic device that requires a smaller number of individual drives and thus easier to control and less susceptible to interference.

Diese Aufgabe wird mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved with the features of claim 1.

Die erfindungsgemäße Vorrichtung benötigt für einen vollautomatischen Betrieb nur vier getrennt zu steuernde Antriebe, nämlich jeweils einen für jedes Schwenkhebelpaar, für den Schneidvorgang und für das Halteelement zum Festhalten des abgeschnittenen Bahnendes.For a fully automatic operation, the device according to the invention requires only four drives to be controlled separately, namely one for each pair of swivel levers, for the cutting process and for the holding element for holding the cut end of the web.

Die Unteransprüche enthalten bevorzugte Ausführungsformen der Erfindung.The subclaims contain preferred embodiments of the invention.

Die Erfindung ermöglicht die Anordnung der Schneideinrichtung außerhalb des Bahnverlaufes beim Abwickeln, so daß diese fest eingebaut werden kann. Patentanspruch 2 enthält eine besonders vorteilhafte Position für die Schneideinrichtung, da so kein überhängender, nicht gehaltener Bahnrest erzeugt wird, der zu Problemen beim Auflegen auf die volle Rolle führen könnte. Ein traversierendes Messer nach Anspruch 3 benötigt wenig Platz bei sicherer Funktion.The invention enables the arrangement of the cutting device outside of the course of the web during unwinding, so that it can be permanently installed. Claim 2 contains a particularly advantageous position for the cutting device, since so no overhanging, not held web residue is generated, which could lead to problems when laying on the full roll. A traversing knife according to claim 3 requires little space with reliable function.

Die Blaseinrichtung nach Anspruch 4 verhindert, daß sich der Bahnrest zwischen Andrückelement und Halteelement beim Auflegen auf der Außenseite der vollen Rolle nach Lösen der Bahn vom Halteelement aufrollt und so den Klebevorgang beeinträchtigt.The blowing device according to claim 4 prevents the web residue between the pressing element and the holding element when it is placed on the outside of the full roll from loosening the web from the holding element and thus adversely affecting the gluing process.

Die Patentansprüche 5 und 6 enthalten konstruktiv besonders vorteilhafte Ausführungsformen der Erfindung.Claims 5 and 6 contain structurally particularly advantageous embodiments of the invention.

Ein bevorzugtes Ausführungsbeispiel der Erfindung ist in der Zeichnung vereinfacht dargestellt und wird im folgenden näher erläutert.A preferred embodiment of the invention is shown in simplified form in the drawing and is explained in more detail below.

Die Fig. 1 bis 3 zeigen in Seitenansicht den Aufbau und die Funktionsweise einer Vorrichtung nach der Erfindung.1 to 3 show a side view of the structure and operation of a device according to the invention.

Die Ausführungsform nach den Fig. 1 - 3 ist zum Einsatz an Abwickelmaschinen für Wickelrollen aus Papierbahnen ausgelegt, die auf Papphülsen aufgewickelt sind. Mehrere derartige Abwickelmaschinen sind häufig gemeinsam in einem Gestell angeordnet, so daß die abgezogenen Bahnen zu einer mehrlagigen Bahn zusammengeführt und anschließend gemeinsam weiterverarbeitet werden, z. B. in einem Querschneider zum Herstellen von Papierbögen. Bei diesen Abwickelmaschinen findet der Bahnabzug von der Oberseite einer Rolle nach oben statt. Beim Abwickeln werden die Wickelrollen von in die Hülse einfahrbaren Führungsköpfen gehalten, die in einem Rahmen oder seitlichen Ständern gelagert sind.The embodiment according to FIGS. 1-3 is designed for use on unwinding machines for winding rolls made of paper webs which are wound on cardboard tubes. Several such unwinding machines are often arranged together in a frame, so that the stripped webs are brought together to form a multi-layer web and then further processed together, e.g. B. in a sheeter for making sheets of paper. In these unwinding machines, the web is drawn off from the top of a roll upwards. During unwinding, the winding rolls are held by guide heads which can be moved into the sleeve and are mounted in a frame or side stands.

Die erfindungsgemäße Splicevorrichtung ist an oberhalb der Abwickelstelle sich befindlichen Längsträgern 1 des Rahmens der Abwickelmaschine befestigt. Die Längsträger 1 erstrecken sich zu beiden Seiten der Bahnführung 2 mit Abstand oberhalb des maximalen Durchmessers einer vollen Rolle 3 und sind auf nicht dargestellten Ständern abgestützt. Die Abwickelposition einer vollen Rolle 3 wird durch in die zentrale Hülse einfahrbare Führungsköpfe 4 bestimmt. Die Führungsköpfe 4 sind in Lagerböcken gelagert und mit einer Bremse verbunden. Etwas bahnauslaufseitig versetzt ist oberhalb der Abwickelstelle und außerhalb des Bereiches einer vollen Rolle 3 mit maximalem Durchmesser an der Unterseite der Längsträger 1 eine sich quer über die Arbeitsbreite erstreckende Leitrolle 5 fest gelagert, die die abgezogene Bahn 6.1, 6.2 in die Horizontale zu der nachfolgenden Verarbeitungsmaschine umlenkt.The splicing device according to the invention is fastened to longitudinal beams 1 of the frame of the unwinding machine located above the unwinding point. The longitudinal beams 1 extend on both sides of the web guide 2 at a distance above the maximum diameter of a full roll 3 and are supported on stands, not shown. The unwinding position of a full roll 3 is determined by guide heads 4 which can be moved into the central sleeve. The guide heads 4 are mounted in bearing blocks and connected to a brake. Slightly offset on the web exit side, above the unwinding point and outside the area of a full roll 3 with a maximum diameter on the underside of the longitudinal beams 1, a guide roller 5, which extends across the working width, firmly supports the drawn web 6.1, 6.2 in the horizontal to the subsequent processing machine redirects.

Die erfindungsgemäße Splicevorrichtung enthält eine sich quer über die Arbeitsbreite erstreckende Transportstange 7, die an ihren beiden Enden jeweils am freien Ende eines Schwenkhebels 8 befestigt ist. Die Schwenkhebel 8 sind an den Längsträgern 1 beidseitig der Bahnführung 2 um eine Achse 9 schwenkbar angelenkt, die mit geringem Abstand gegen die Bahnlaufrichtung von der Senkrechten durch die Position der Führungsköpfe 4 versetzt verläuft. An den Hebeln 8 greift als Schwenkantrieb eine an den Längsträgern 1 befestigte Kolben-Zylinder-Einheit 10 an. Die Hebel 8 sind so bemessen und so außerhalb der Bahnbreite angelenkt, daß die Transportstange 8 unterhalb der horizontalen Bahnführung 2 von einer Ruheposition 11, die sich in Bahnlaufrichtung hinter der Leitrolle 5 und oberhalb des maximalen Durchmessers der Rolle 3 befindet, nach unten gegen die Bahnlaufrichtung - in Fig. 1 nach links - bis zu einer Endposition 12 (Fig. 2) schwenken läßt, die sich in Bahnlaufrichtung vor einer vollen Rolle und oberhalb dieser, jedoch noch mit Abstand unterhalb der Längsträger 1 befindet.The splicing device according to the invention contains a transport rod 7 which extends across the working width and is fastened at both ends to the free end of a pivot lever 8. The pivot levers 8 are articulated on the longitudinal members 1 on both sides of the web guide 2 so as to be pivotable about an axis 9 which is offset from the vertical by the position of the guide heads 4 at a short distance from the web running direction. A piston-cylinder unit 10 attached to the side members 1 acts as a swivel drive on the levers 8. The levers 8 are dimensioned and so articulated outside the web width that the transport rod 8 below the horizontal web guide 2 from a rest position 11, which is located in the web running direction behind the guide roller 5 and above the maximum diameter of the roller 3, downward against the web running direction - In Fig. 1 to the left - to an end position 12 (Fig. 2) can be pivoted, which is in the web running direction in front of a full roll and above this, but still at a distance below the longitudinal beam 1.

Am freien Ende von zwei weiteren seitlichen Schwenkhebeln 13 ist ein sich quer über die Arbeitsbreite erstreckendes Bahnhalteelement 14 befestigt, das im vorliegenden Ausführungsbeispiel als Saugbalken mit einer Reihe von nach unten offenen Saugnäpfen ausgebildet ist. Die Hebel 13 sind an der Unterseite der Längsträger 1 um einen sich in der Nähe der Leitrolle 5 befindliche Achse 15 schwenkbar angelenkt und weisen eine nach oben abgewinkelte Verlängerung auf, an deren Ende als Schwenkantrieb eine ebenfalls an den Längsträgern 1 befestigte Kolben-Zylinder-Einheit 16 angreift. Mit einem gewissen Abstand von der Halteeinrichtung 14 ist an den Schwenkhebeln 13 eine sich quer über die Arbeitsbreite erstreckende Andrückwalze 17 befestigt, und etwa in der Mitte zwischen Haltevorrichtung 14 und Andrückwalze 17 erstreckt sich über die Arbeitsbreite ein nach unten blasendes Blasrohr 18, das ebenfalls beidseitig an den Hebeln 13 befestigt ist. Der Hub der Kolben-Zylinder-Einheit 16 und die Verhältnisse an den Hebeln 13 sind so gewählt, daß die Andrückwalze 17 sich vom Außenumfang einer vollen Rolle 3.1 mit minimalem Durchmesser bis in den freien Bereich zwischen maximalem Durchmesser der Rolle 3 und der sich unmittelbar unterhalb der Längsträger 1 befindlichen Bahnführungen 2 schwenken läßt. In hochgeschwenkter Endposition befindet sich das Halteelement 14 unmittelbar neben der Schneidlinie eines quer über die Arbeitsbreite traversierenden Messers 19, dessen Führung 20 an der Unterseite beider Längsträger 1 befestigt und mit ausreichendem Abstand von der Bahnführung 2 von nachfolgend abgezogenen Bahnen angeordnet ist, daß es diese nicht stört. Das Messer 19 mit seiner Führung 20 ist so angeordnet, daß es ­ebenso wie die Schwenkhebel 13 - von der Transportstange 7 außen umschwenkt werden kann.At the free end of two further lateral pivot levers 13 a web holding element 14 extending across the working width is fastened, which in the present exemplary embodiment is designed as a suction bar with a row of suction cups which are open at the bottom. The levers 13 are pivotally articulated on the underside of the side members 1 about an axis 15 located in the vicinity of the guide roller 5 and have an upwardly angled extension, at the end of which as a swivel drive, a piston-cylinder unit also attached to the side members 1 16 attacks. At a certain distance from the holding device 14, a pressure roller 17 extending across the working width is fastened to the pivot levers 13, and approximately in the middle between the holding device 14 and the pressure roller 17, a downward blowing blow pipe 18 extends over the working width, which is also on both sides is attached to the levers 13. The stroke of the piston-cylinder unit 16 and the conditions on the levers 13 are chosen so that the pressure roller 17 extends from the outer circumference of a full roller 3.1 with a minimum diameter to the free area between the maximum diameter of the roller 3 and that immediately below the longitudinal beam 1 located web guides 2 can pivot. In the swiveled-up end position, the holding element 14 is located directly next to the cutting line of a knife 19 traversing across the working width, the guide 20 of which is attached to the underside of both longitudinal beams 1 and is arranged at a sufficient distance from the web guide 2 of subsequently drawn webs that they do not disturbs. The knife 19 with its guide 20 is arranged in such a way that it can be swung around by the transport rod 7 on the outside, just like the swivel lever 13.

Im folgenden wird der Ablauf eines erfindungsgemäßen Splicevorganges anhand der Fig. 1 - 3 erläutert:The sequence of a splicing process according to the invention is explained below with reference to FIGS. 1-3:

Fig. 1 zeigt die Schwenkarme 8, 13 in ihrer Ruheposition, in der keines der Spliceelemente den Ablauf der Bahn 6.1, 6.2 stört:
Die Transportstange 7 befindet sich in der Ruheposition 11 im von der Leitrolle 5 freigehaltenen Bereich hinter dem nach oben abgezogenen Bahnteil 6.1. Die Schwenkarme 13 stehen hochgeschwenkt, so daß sich die Andrückwalze 17, das Halteelement 14 und das Blasrohr 18 im nichtstörenden Bereich oberhalb des Verlaufes der Bahn 6.1 und unterhalb der Bahnenführung 2 befindet. Aufgrund des Abwickelns verringert sich der Druchmesser der Rolle 3 immer mehr und der Verlauf der Bahn 6.1 wandert nach unten, bis ein vorbestimmter Restdurchmesser 3.2 erreicht ist, bei dem der Abwickelvorgang abgestoppt wird (Fig. 2). Anschließend schwenkt der Schwenkarm 8 im Uhrzeigersinn, so daß die Transportstange 7 aus ihrer Ruheposition 11 bewegt wird und in die Bahn 6.1 eintaucht. Beim Weiterschwenken bis in die in Fig. 2 gezeigte Endposition 12 unterhalb der Längsträger 1 wird der in Fig. 2 gestrichelt gezeichnete Bahnverlauf 6.3, 6.4 erreicht. Der Bahnteil 6.4 liegt nach Erreichen der Endposition 12 des Schwenkarmes 8 sowohl an der Andrückwalze 17, als auch an den Saugflächen des Halteelementes 14 und der Schneidlinie des Messers 19 an. Bei der Bewegung des Hebels 8 wird die Bahnlänge zwischen der Restrolle 3.1 und der Leitwalze 5 verlängert, daher wird die Restrolle 3.1 weiter abgewickelt.1 shows the swivel arms 8, 13 in their rest position, in which none of the splice elements disrupt the course of the web 6.1, 6.2:
The transport rod 7 is in the rest position 11 in area kept clear of the guide roller 5 behind the web part 6.1 pulled upwards. The swivel arms 13 are pivoted upward so that the pressure roller 17, the holding element 14 and the blow pipe 18 are located in the non-disturbing area above the course of the web 6.1 and below the web guide 2. Due to the unwinding, the diameter of the roll 3 decreases more and more and the course of the web 6.1 moves downward until a predetermined residual diameter 3.2 is reached, at which the unwinding process is stopped (FIG. 2). Then the swivel arm 8 pivots clockwise, so that the transport rod 7 is moved from its rest position 11 and dips into the web 6.1. When pivoting further into the end position 12 shown in FIG. 2 below the longitudinal members 1, the path 6. 3, 6. 4 shown in broken lines in FIG. 2 is reached. After reaching the end position 12 of the swivel arm 8, the web part 6.4 lies both on the pressure roller 17 and also on the suction surfaces of the holding element 14 and the cutting line of the knife 19. When the lever 8 is moved, the length of the web between the remaining roll 3.1 and the guide roller 5 is lengthened, so the remaining roll 3.1 is further unwound.

Anschlißend wird durch Einschalten des Sauggebläses für das Halteelement 14 der Bahnteil 6.4 festgehalten, un das Messer 19 schneidet die Bahn 6.4 quer durch. Nun wird die Restrolle 3.1 aud den Führungsköpfen 4 entfernt, die Transportstange 7 wird mit den Hebeln 8 in die Ruhestellung 11 zurückgeschwenkt und anschließend eine neue volle Rolle 3 eingehängt (Fig. 3). An der vollen Rolle 3 ist eine Klebenaht 21, z. B. ein doppelseitiges Klebeband, vorbereitet, die beim Einhängen der Rolle 3 in den in Fig. 3 mit A bezeichneten Bereich positioniert wird. Anschließend wird der Hebel 13 nach unten geschwenkt, bis die Andrückwalze 17 unter Druck an der Außenseite der Rolle 3 anliegt. Durch Abschlaten des Sauggebläses des Halteelementes 14 und Einschalten der Blasluft im Blasrohr 18 wird das abgeschnittene Bahnende hinter der Andrückwalze 17 auf die Außenfläche der Rolle 3 gelegt und gehalten. Anschließend wird der Bahnabzug der ablaufenden Bahn 6.2 eingeschaltet, wodurch die volle Rolle 3 aufgrund der Reibung durch die unter Druck anliegende Andrückwalze 17 gleichzeitig im Uhrzeigersinn in Drehung versetzt wird. Dabei wird die Klebenaht 21 mit dem darüberliegenden Bahnrest der ablaufenden Bahn 6.4 durch den Spalt am Andrückpunkt 22 bewegt und so unter Druck die Klebeverbindung hergestellt.Subsequently, the web part 6.4 is held by switching on the suction blower for the holding element 14, and the knife 19 cuts the web 6.4 transversely. Now the remaining roll 3.1 is removed from the guide heads 4, the transport rod 7 is pivoted back into the rest position 11 with the levers 8 and then a new full roll 3 is hung in (FIG. 3). On the full roll 3 is a glue seam 21, for. B. prepared a double-sided adhesive tape, which is positioned when hanging the roll 3 in the area designated by A in Fig. 3. The lever 13 is then pivoted downward until the pressure roller 17 rests under pressure on the outside of the roller 3. By cutting off the suction blower of the holding element 14 and switching on the blown air in the blow tube 18, the cut end of the web is placed behind the pressure roller 17 on the outer surface of the roll 3 and held. Then will the web take-off of the running web 6.2 is switched on, whereby the full roll 3 is simultaneously rotated clockwise due to the friction caused by the pressure roller 17 which is under pressure. The adhesive seam 21 with the overlying web remnant of the running web 6.4 is moved through the gap at the pressing point 22 and the adhesive connection is thus produced under pressure.

Nach Durchlauf der Klebenaht 21 durch den Andrückpunkt 22 werden die Hebel 13 in die in Fig. 1 gezeigte Ruhestellung hochgeschwenkt und die Abwickelmaschine kann auf volle Arbeitsgeschwindigkeit beschleunigt werden.After the adhesive seam 21 has passed through the pressure point 22, the levers 13 are pivoted up into the rest position shown in FIG. 1 and the unwinding machine can be accelerated to full working speed.

Es ist ein wesentlicher Vorteil der erfindungsgemäßen Vorrichtung, daß die Klebenaht 21 nicht exakt, sondern nur innerhalb eines bestimmten Bereiches positioniert werden muß. Dies ermöglicht eine sehr einfache Rollenvorbereitung der neuen Rolle für den Splicevorgang und es erübrigen sich aufwendige Steuereinrichtungen, die die Klebenaht 21 zum Herstellen der Klebeverbindung, z. B. durch Drehen der vollen Rolle, positionieren.It is an essential advantage of the device according to the invention that the adhesive seam 21 does not have to be positioned exactly, but only within a certain area. This enables a very simple roll preparation of the new roll for the splicing process and it eliminates the need for complex control devices that the adhesive seam 21 for producing the adhesive connection, for. B. by rotating the full roll.

Claims (6)

1. Vorrichtung zum Verbinden des Endes einer von einer ersten Wickelrolle ablaufenden Materialbahn mit dem Bahnanfang einer gegen die erste Wickelrolle eingewechselten neuen Wickelrolle an einer Abwickelmaschine mit Mitteln zum Halten der jeweiligen Wickelrolle und einer oberhalb der Abwickelstelle angeordneten Leitrolle zum Umlenken der ablaufenden Bahn, mit Mitteln zum Durchtrennen der ablaufenden Bahn, zum Halten des erzeugten Bahnendes und zum Andrücken des Bahnendes an den Außenumfang der eingewechselten neuen Wickelrolle, um eine Klebeverbindung zu erzeugen, dadurch gekenn­zeichnet, daß
oberhalb der Abwickelstelle in einem Rahmen zwei Paare von jeweils parallelen Schwenkhebeln (8, 13) angelenkt sind, wobei ein Schwenkhebelpaar (8) ein Transportelement (7} zum Anheben eines Teils (6.4) der ablaufenden Bahn trägt, das von einer Ruheposition (11) in Bahnlaufrichtung hinter dem zur Leitrolle (5) geführten Bahnteil (6.1) gegen die Bahnlaufrichtung in eine Endposition (12) schwenkbar ist, die sich außerhalb des Bereiches einer vollen Rolle (3) befindet, das zweite Schwenkhebelpaar (13) an seinem freien Ende ein Halteelement (14) und davor ein Andrückelement (17) für den angehobenen Bahnteil (6.4) trägt und vom Bereich der Endposition (12) des ersten Schwenkhebelpaares (8) in Bahnlaufrichtung bis an den Außenumfang einer vollen Rolle (3) schwenkbar ist.1.Device for connecting the end of a material web running from a first winding roll to the beginning of the web of a new winding roll exchanged for the first winding roll on an unwinding machine with means for holding the respective winding roll and a guide roller arranged above the unwinding point for deflecting the running web, with means for severing the running web, for holding the web end produced and for pressing the web end against the outer circumference of the new winding roll which has been replaced in order to produce an adhesive connection, characterized in that
Above the unwinding point, two pairs of respective parallel pivot levers (8, 13) are articulated in a frame, a pair of pivot levers (8) carrying a transport element (7} for lifting a part (6.4) of the running web which is in a rest position (11) In the web running direction behind the web part (6.1) guided to the guide roller (5) can be pivoted against the web running direction into an end position (12), which is outside the area of a full roller (3), the second pair of pivot levers (13) at its free end Holding element (14) and in front of a pressing element (17) for the raised web part (6.4) and is pivotable from the area of the end position (12) of the first pair of pivot levers (8) in the web running direction to the outer circumference of a full roller (3). 2. Vorrichtung nach Anspruch 1, dadurch gekenn­zeichnet, daß eine Schneideinrichtung (19, 20) im Bereich zwischen dem Transportelement (7) in der Endposition (12) der Schwenkhebel (8) und dem Halteelement (14) bei hochgeschwenkten Schwenkhebeln (13) angeordnet ist.2. Apparatus according to claim 1, characterized in that a cutting device (19, 20) in the region between the transport element (7) in the end position (12) of the pivot lever (8) and the holding element (14) when the pivot lever (13) is arranged is. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekenn­zeichnet, daß die Schneideinrichtung (19, 20) am Rahmen befestigt ist und als Schneidelement ein traversierendes Messer (19) enthält.3. Apparatus according to claim 1 or 2, characterized in that the cutting device (19, 20) is attached to the frame and contains a traversing knife (19) as the cutting element. 4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Andrückelement (17) mit Abstand von dem Halteelement (14) angeordnet ist, und daß im Bereich zwischen Halteelement (14) und Andrückelement (17) an den Schwenkhebeln (13) eine nach unten blasende Blaseinrichtung (18) befestigt ist.4. Device according to one of claims 1 to 3, characterized in that the pressing element (17) is arranged at a distance from the holding element (14), and that in the region between the holding element (14) and pressing element (17) on the pivot levers (13th ) a downward blowing device (18) is attached. 5. Vorrichtung nach einem der Ansprüche 1 bis 4, gekenn­zeichnet durch eine freilaufende Walze als Andrückelement (17).5. Device according to one of claims 1 to 4, characterized by a free-running roller as a pressing element (17). 6. Vorrichtung nach einem der Ansprüche 1 bis 5, gekenn­zeichnet durch einen Saugbalken mit nach unten offenen Saugnäpfen als Halteelement (14).6. Device according to one of claims 1 to 5, characterized by a suction bar with suction cups open downwards as a holding element (14).
EP90100124A 1989-01-23 1990-01-04 Device for joining sheets together Expired - Lifetime EP0379861B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90100124T ATE82003T1 (en) 1989-01-23 1990-01-04 DEVICE FOR CONNECTING WEBS OF MATERIAL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3901854 1989-01-23
DE3901854A DE3901854A1 (en) 1989-01-23 1989-01-23 DEVICE FOR JOINING MATERIAL RAILS

Publications (2)

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EP0379861A1 true EP0379861A1 (en) 1990-08-01
EP0379861B1 EP0379861B1 (en) 1992-11-04

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US (1) US5020736A (en)
EP (1) EP0379861B1 (en)
JP (1) JPH02231345A (en)
AT (1) ATE82003T1 (en)
CA (1) CA2003573A1 (en)
DE (2) DE3901854A1 (en)
ES (1) ES2036059T3 (en)
FI (1) FI900344A0 (en)

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EP0739821A2 (en) * 1993-05-26 1996-10-30 Minnesota Mining And Manufacturing Company Tape supply and applicator system including a tape splicing mechanism
DE4401963C2 (en) * 1994-01-25 1998-09-03 Voith Gmbh J M Device for establishing a rail connection
GB2340104A (en) * 1998-08-01 2000-02-16 Creators Europ Limited Protecting the edges of coils of steel strip by joining together coil protectors
DE19901026A1 (en) * 1999-01-13 2000-07-20 Jagenberg Papiertech Gmbh Method and device for connecting material webs
DE20019539U1 (en) * 2000-11-17 2001-02-15 Valmet Corp., Helsinki Arrangement for establishing a rail connection
DE102008032399A1 (en) * 2008-07-10 2010-01-14 Manroland Ag Device for attaching liner of web to another web for preparation of flying roll change in web-fed rotary printing machine, has pressing device implemented as nozzle for guiding compressed air that blows on liner
DE102015208112A1 (en) * 2015-04-30 2016-11-03 Krones Aktiengesellschaft Device for handling flat and / or foil material wound up on rolls
CN116512617B (en) * 2023-05-19 2023-11-10 无锡弘力硅胶制品有限公司 Annular silica gel belt press-fit forming device and method

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EP1870359A3 (en) * 2006-06-21 2011-04-13 Focus S.r.l. Apparatus for feeding a material in the form of a continuous web to one or more operating machines

Also Published As

Publication number Publication date
US5020736A (en) 1991-06-04
CA2003573A1 (en) 1990-07-23
JPH02231345A (en) 1990-09-13
FI900344A0 (en) 1990-01-22
DE3901854A1 (en) 1990-07-26
DE59000415D1 (en) 1992-12-10
EP0379861B1 (en) 1992-11-04
ATE82003T1 (en) 1992-11-15
ES2036059T3 (en) 1993-05-01

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