EP1842814A2 - Device for replacing a first material web by a second material web - Google Patents

Device for replacing a first material web by a second material web Download PDF

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Publication number
EP1842814A2
EP1842814A2 EP06024966A EP06024966A EP1842814A2 EP 1842814 A2 EP1842814 A2 EP 1842814A2 EP 06024966 A EP06024966 A EP 06024966A EP 06024966 A EP06024966 A EP 06024966A EP 1842814 A2 EP1842814 A2 EP 1842814A2
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EP
European Patent Office
Prior art keywords
material web
roller
unit
roll
splice
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
EP06024966A
Other languages
German (de)
French (fr)
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EP1842814A3 (en
EP1842814B1 (en
Inventor
Jürgen Matzenmüller
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.)
Uhlmann Pac Systeme GmbH and Co KG
Original Assignee
Uhlmann Pac Systeme GmbH and Co KG
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Publication date
Application filed by Uhlmann Pac Systeme GmbH and Co KG filed Critical Uhlmann Pac Systeme GmbH and Co KG
Publication of EP1842814A2 publication Critical patent/EP1842814A2/en
Publication of EP1842814A3 publication Critical patent/EP1842814A3/en
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Publication of EP1842814B1 publication Critical patent/EP1842814B1/en
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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
    • 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
    • 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
    • B65H19/1852—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 at a distance from 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
    • 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
    • B65H19/1857—Support arrangement of web rolls
    • B65H19/1873—Support arrangement of web rolls with two stationary roll supports carrying alternately the replacement and the expiring 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
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/30—Facilitating or easing
    • B65H2601/32—Facilitating or easing entities relating to handling machine
    • B65H2601/325—Manual handling of handled material
    • 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
    • B65H2701/19—Specific article or web
    • B65H2701/1944—Wrapping or packing material

Definitions

  • the invention relates to a device for replacing a material web arranged on a work roll by a further material web provided on a standby roll, having a first, a first tensioning shaft for the splice unit having a roller and a second splicing unit having a second tensioning shaft for the second roller.
  • Such devices are used in practice, when the material to be processed in a machine wound on large supply rolls is provided, of which continuously or clocked the material is withdrawn as a running web or as packaging material, usually as a film web for the goods.
  • the invention has for its object to make the regularly carried out measures of change between the work role and the readiness role for the user as simple as possible.
  • the cutting unit for fixing the material web comprises a fixing unit, so that the position of the material web is reliably fixed before, during and after cutting.
  • the fixing unit is associated with a vacuum suction. Furthermore, a pressure-medium-operated adjustable clamping plate is arranged in the fixing unit. This clamping plate lends itself to a large-area clamping of the material web, while the vacuum suction device is preferably kept ready for the free end of the material web.
  • the adhesive table is associated with a pressure medium actuated adjustable pinch roller, which forces a distance of a material web to the other web and prevents premature bonding.
  • At least one vacuum suction device for the material web is associated with the bonding table, wherein the bonding table furthermore has suction channels for one on the material web Having to be fixed adhesive tape.
  • the arrangement is such that the tension shafts in their circumferential direction pressure medium operable blades for tensioning the associated role and a disc brake with electronically pressure control.
  • the design is such that in each splice unit, a sensor for detecting the tail end of the associated role is provided, wherein the sensor is designed as an inductive sensor for detecting the rotational speed of the clamping shaft.
  • the material web Since preferably during the splicing process itself the production process should not be stopped, the material web must continue to be made available from a supply to the production process. For this purpose, it is provided that the material web on the work roll by a between a working position and a Splicegna pivotable pendulum is guided.
  • the design is such that the bonding table is resiliently mounted.
  • a, in particular rubberized feed roller for feeding the material web is provided, which is active for normal operation, between two Splicevor réellen and also can be used for flat rolling the Splicestelle on a counter-roller.
  • a DC motor is provided, which is associated with a transmission.
  • a pneumatic drive with an electromagnetic clutch is provided.
  • a servomotor is provided for the drive of the rubberized feed roller and the further transport of the cut material web. This servo replaces the task of the DC motor described under point 14 at the same time.
  • the device has a first splicing unit 5 with a first tensioning shaft 6 and a second splicing unit 7 with a second tensioning shaft 8, which in its circumferential direction tikstoffbetätigbare lamellae 9 for tensioning the associated roller 1, 2, that is the work roll 1 or the standby roll 2, as well have a disc brake with electro-pneumatic pressure control.
  • each of the splicing units 5, 7 is displaceably mounted in the direction defined by the axis of the associated tensioning shaft 6, 8. Furthermore, each splice unit 5, 7 also has a cutting unit 10 and a resiliently mounted for tolerance compensation bonding table 11, wherein in the cutting unit 10, a counter knife 12 and a pressure medium-actuated adjustable blade 13 are arranged, between which the material web runs ( Figure 3).
  • the cutting unit 10 for fixing the material web 3 comprises a fixing unit 14, which is associated with a vacuum suction 15 and further comprising a pressure medium-operated adjustable clamping plate 16.
  • the adhesive table 11 is associated with a pressure medium-actuated adjustable pinch roller 17 ( Figure 4), which further also has a vacuum suction 18 and suction channels 19 for fixing the position of an attachable to the web 3 adhesive tape 20.
  • a sensor for detecting the web end of the associated roller 1, 2 is arranged, which is designed as an inductive sensor for detecting the rotational speed of the clamping shaft 6, 8.
  • the starting point is the state in FIG. 1, in which the right-hand splice unit 7 is arranged the work roll 1, while in the left splice unit 5 the standby roll 2 is positioned. It is thus shown the state in which the previously arranged in the left splice unit 5 work roll 1 is already removed by relaxing the slats 9 of the tensioning shaft 6 and replaced by a standby roller 2 with a complete tape roll.
  • the user In order to prepare the splicing operation, the user has to pull the beginning of the material web 3 of the stand-by roll 2 in the extracted splicing unit 5 to the cutting unit 10 and align it for a correct web run the user has to pay attention to a tight trajectory (Fig. 2).
  • the fixing unit 14 is activated and subsequently the cutting unit 10 in order to achieve a perfect, not frayed, undamaged or kinked web start (FIG. 4A).
  • This web start is threaded again and clamped by means of the fixing unit 14 (FIG. 4B).
  • the splicing process is carried out by utilizing an adhesive tape 20, which is mounted on the material web 3 on one side from above.
  • an adhesive tape 20 which is mounted on the material web 3 on one side from above.
  • the user it is possible to provide the user with a marking line so that the latter can place the adhesive tape 20 in the center of the end of the material web 3 and thus of the splice point.
  • the free end of the material web 3 be bevelled at an angle with the adhesive tape 20 (FIG. 4C).
  • the thus prepared end of the material web 3 is withdrawn from the cutting unit 10 and pivoted by 270 ° down on the bonding table 11 and positioned (Fig. 4D), on which the position is secured by the vacuum suction 18 and the suction channels 19.
  • the loose web end of the work roll 1 in the other splicing unit 7 is detected by the fixing unit 14 clamped.
  • the splicing table 11 of the splice unit 7 carrying the work roll 1 is extended and at the same time the pinch roller 17 of the splicing table 11 is actuated from the other splicing unit 5 (FIG. 5C); In this case, the further production process is maintained by the provided by the pendulum 4 supply of the material web 3.
  • the cutting device 10 of the work roller 1 carrying the second splice unit 7 cuts off the material web 3 and the web end of the material web 3 from the working roll 1 bearing splice unit 7 is positioned on the bonding table 11; Subsequently, the splicing table 11 of the splicing unit 5 carrying the standby roller 2 extends (FIG. 5D), whereby the splicing operation takes place. Thereafter, the vacuum applied to all the vacuum cups 18 and suction channels 19 is switched off and the fixing unit 14 is opened open the splicing unit 5.
  • the two adhesive tables 11 are moved back and the material web 3 can be deducted from the converted into the work role 1 ready roll 2 from the first splicing unit 5 to replenish the pendulum 4 associated supply and to continue production, wherein the feed of the material web 3 during the production process by means of a rubberized feed roller 22, which is, however, also used for the flat rolling of the splice point on a counter-roller 23.
  • a DC motor is provided, which is associated with a transmission.
  • a pneumatic drive 21 is provided with an electromagnetic clutch.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Unwinding Webs (AREA)

Abstract

The apparatus has supports displaceable in a direction parallel to each other between an outer reload position and an inner supply position. A set of shafts (6, 8) on the supports extends parallel to the direction and is adapted to carry rolls (1, 2) of a material strip (3). A feeder unit pulls off the strip of one of the rolls in the supply position of the respective support. A cutter (10) on each of the supports cuts the respective strip, and a glue joiner (11) on each of the supports glues a leading end of the respective strip. A direct-current motor is provided for driving a feed roller.

Description

Vorrichtung zum Ersetzen einer ersten Materialbahn durch eine zweite MaterialbahnDevice for replacing a first material web by a second material web

Die Erfindung betrifft eine Vorrichtung zum Ersetzen einer auf einer Arbeitsrolle angeordneten Materialbahn durch eine auf einer Bereitschaftsrolle bereitgestellen weiteren Materialbahn, mit einer ersten, eine erste Spannwelle für die eine Rolle aufweisenden Spliceeinheit und mit einer zweiten, eine zweite Spannwelle für die zweite Rolle aufweisenden Spliceeinheit.The invention relates to a device for replacing a material web arranged on a work roll by a further material web provided on a standby roll, having a first, a first tensioning shaft for the splice unit having a roller and a second splicing unit having a second tensioning shaft for the second roller.

Derartige Vorrichtungen werden in der Praxis eingesetzt, wenn das in einer Maschine zu verarbeitende Material gewickelt auf großen Vorratsrollen bereitgestellt wird, von denen kontinuierlich oder getaktet das Material als laufende Warenbahn oder als Verpackungsmaterial, in der Regel als Folienbahn, für die Ware abgezogen wird.Such devices are used in practice, when the material to be processed in a machine wound on large supply rolls is provided, of which continuously or clocked the material is withdrawn as a running web or as packaging material, usually as a film web for the goods.

Anwendungsbeispiele finden sich in der Textilindustrie, bei Druckmaschinen und insbesondere auch in der Verpackungsindustrie, die bei der Verpackung pharmazeutischer Produkte hohe Anforderung an Reinheit und Fehlerfreiheit erfüllen muss. Weiterhin ist durch die endliche Länge der auf der Vorratsrolle bereitsgestellten Materialbahn regelmäßig ein Austausch der Vorratsrolle erforderlich, woraus sich zwanglos die Unterscheidung zwischen gegenwärtig im Produktionsprozess aktiver Arbeitsrolle und als Reserve bereitgehaltener Bereitschaftsrolle ergibt.Application examples can be found in the textile industry, in printing presses and in particular in the packaging industry, which has to meet high demands on purity and faultlessness in the packaging of pharmaceutical products. Furthermore, due to the finite length of the material web provided on the supply roll, an exchange of the supply roll is required on a regular basis, which results in a casual distinction between the work roll currently active in the production process and the standby roll held ready as a reserve.

Der Erfindung liegt die Aufgabe zugrunde, die regelmäßig durchzuführenden Maßnahmen des Wechsels zwischen der Arbeitsrolle und der Bereitschaftsrolle für den Nutzer möglichst einfach zu gestalten.The invention has for its object to make the regularly carried out measures of change between the work role and the readiness role for the user as simple as possible.

Diese Aufgabe wird nach der Erfindung bei einer Vorrichtung der eingangs genannten Art dadurch gelöst, dass zur Vorbereitung des Splicevorganges sämtliche Spliceeinheiten in der durch die Achse der zugeordneten Spannwellen definierten Richtung verschiebbar gelagert ist, und dass jede der Spliceeinheiten eine Schneideinheit und einen Klebetisch aufweist.This object is achieved according to the invention in a device of the type mentioned in that for the preparation of Splicevorganges all splice units is slidably mounted in the defined by the axis of the associated tensioning waves direction, and that each of the splicing units comprises a cutting unit and a bonding table.

Durch diese erfindungsgemäße Gestaltung ergeben sich mehrere Vorteile. So ist zum einen selbstverständlich die Zugänglichkeit zu den beiden Spliceeinheiten verbessert, die jeweils abwechselnd die Arbeitsrolle und die Bereitschaftsrolle tragen; zum anderen kann der Nutzer, wenn die Arbeitsrolle abgewickelt ist und durch eine neue Bereitschaftsrolle ersetzt werden muss, die erforderlichen Manipulationen in einer zu der Ebene der laufenden Materialbahn versetzten Ebene ausführen, so dass Produktionsstörungen bei der laufenden Materialbahn durch den Nutzer vermieden sind. Die Zuordnung der Schneideinheit und des Klebetisches zu den beiden Spliceeinheiten stellt zudem sicher, dass die auf der Bereitschaftsrolle bereitsgestellte Materialbahn an ihrem freien Ende einen genau definierten Anfangszustand und Anfangslage einnehmen kann.This inventive design results in several advantages. On the one hand, of course, the accessibility to the two splicing units is improved, which alternately carry the work roll and the standby roll; on the other hand, if the work role has been wound up and needs to be replaced by a new stand-by role, the user can make the necessary manipulations in one to the current one Run web offset layer, so that production disturbances in the running web are avoided by the user. The assignment of the cutting unit and the bonding table to the two splicing units also ensures that the material web provided on the ready roll can assume a precisely defined initial state and initial position at its free end.

Dazu bietet es sich an, dass in der Schneideinheit ein Gegenmesser und ein druckmittelbetätigt verstellbares Schneidmesser angeordnet sind, zwischen denen die Materialbahn verläuft. Weiterhin ist es günstig, wenn die Schneideinheit zur Fixierung der Materialbahn eine Fixiereinheit umfasst, damit die Lage der Materialbahn vor, während und nach dem Schneiden verlässlich festgelegt ist.For this purpose, it is advisable that in the cutting unit, a counter knife and a pressure medium-operated adjustable cutting blade are arranged, between which the material web runs. Furthermore, it is favorable if the cutting unit for fixing the material web comprises a fixing unit, so that the position of the material web is reliably fixed before, during and after cutting.

Mittels eines einfachen konstruktiven Aufbaus wird dies erreicht, indem der Fixiereinheit ein Vakuumsauger zugeordnet ist. Weiterhin ist in der Fixiereinheit eine druckmittelbetätigt verstellbare Klemmplatte angeordnet. Diese Klemmplatte bietet sich für eine großflächige Klemmung der Materialbahn an, während der Vakuumsauger bevorzugt für das freie Ende der Materialbahn bereitgehalten wird.By means of a simple construction, this is achieved by the fixing unit is associated with a vacuum suction. Furthermore, a pressure-medium-operated adjustable clamping plate is arranged in the fixing unit. This clamping plate lends itself to a large-area clamping of the material web, while the vacuum suction device is preferably kept ready for the free end of the material web.

Um einen geordneten zeitlichen Ablauf bei der Verbindung der beiden Materialbahnen zu erzielen, ist dem Klebetisch eine druckmittelbetätigt verstellbare Klemmrolle zugeordnet, die eine Distanz der einen Materialbahn zu der anderen Materialbahn erzwingt und ein frühzeitiges Verbinden verhindert.In order to achieve an orderly timing in the connection of the two webs, the adhesive table is associated with a pressure medium actuated adjustable pinch roller, which forces a distance of a material web to the other web and prevents premature bonding.

Um einen einfachen Transfer der Materialbahn von der Schneideinheit zu dem Klebetisch zu ermöglichen und auch an dem Klebetisch die Lage der Materialbahn sicher und präzise zu fixieren, ist dem Klebetisch mindestens ein Vakuumsauger für die Materialbahn zugeordnet, wobei weiterhin der Klebetisch Saugkanäle für ein an der Materialbahn zu befestigendes Klebeband aufweist.In order to enable a simple transfer of the material web from the cutting unit to the bonding table and to securely and precisely fix the position of the material web on the bonding table, at least one vacuum suction device for the material web is associated with the bonding table, wherein the bonding table furthermore has suction channels for one on the material web Having to be fixed adhesive tape.

Um den Wechsel der abgewickelten Arbeitsrolle und deren Ersatz durch eine neue Bereitschaftsrolle zu erleichtern, ist die Anordnung so getroffen, dass die Spannwellen in ihrer Umfangsrichtung druckmittelbetätigbare Lamellen zum Spannen der zugeordneten Rolle sowie eine Scheibenbremse mit elektroneumatischer Druckregelung aufweist.In order to facilitate the change of the unwound work role and their replacement by a new standby role, the arrangement is such that the tension shafts in their circumferential direction pressure medium operable blades for tensioning the associated role and a disc brake with electronically pressure control.

Mit der vorstehend geschilderten Vorrichtung ist es möglich, den Vorgang der Verbindung der beiden Materialbahnen auf der Arbeitsrolle und der Bereitschaftsrolle durch einen Nutzer abschließend vorzubereiten. Allerdings muß noch der Zeitpunkt bestimmt werden, wann der Splicevorgang selber auszuführen ist. Dazu ist die Gestaltung so getroffen, dass in jeder Spliceeinheit ein Sensor zum Erfassen des Bahnendes der zugeordneten Rolle vorgesehen ist, wobei der Sensor als induktiver Sensor zur Erfassung der Drehzahl der Spannwelle gestaltet ist.With the above-described device, it is possible to finally prepare the operation of connecting the two webs of material to the work roll and the standby roll by a user. However, the time must still be determined when the splicing process itself is to be executed. For this purpose, the design is such that in each splice unit, a sensor for detecting the tail end of the associated role is provided, wherein the sensor is designed as an inductive sensor for detecting the rotational speed of the clamping shaft.

Da vorzugsweise während des Splicevorgangs selber der Produktionsprozess nicht gestoppt werden soll, muss weiterhin aus einem Vorrat dem Produktionsprozess die Materialbahn zur Verfügung gestellt werden. Dazu ist vorgesehen, dass die Materialbahn an der Arbeitsrolle durch ein zwischen einer Arbeitsstellung und einer Splicestellung verschwenkbares Pendel geführt ist.Since preferably during the splicing process itself the production process should not be stopped, the material web must continue to be made available from a supply to the production process. For this purpose, it is provided that the material web on the work roll by a between a working position and a Splicestellung pivotable pendulum is guided.

Für den Ausgleich von Toleranzen ist die Gestaltung so getroffen, dass der Klebetisch federnd gelagert ist.To compensate for tolerances, the design is such that the bonding table is resiliently mounted.

Außerdem ist dass eine, insbesondere gummierte Vorschubwalze zum Vorschub der Materialbahn vorgesehen, die für den Normalbetrieb, zwischen zwei Splicevorgängen aktiv ist und außerdem genutzt werden kann, zum Plattwalzen der Splicestelle an einer Gegenrolle.In addition, that a, in particular rubberized feed roller for feeding the material web is provided, which is active for normal operation, between two Splicevorgängen and also can be used for flat rolling the Splicestelle on a counter-roller.

Dabei bietet es sich an, dass für den Antrieb der Vorschubwalze ein Gleichstrommotor vorgesehen ist, dem ein Getriebe zugeordnet ist.It makes sense that for the drive of the feed roller, a DC motor is provided, which is associated with a transmission.

Für den präzisen Weitertransport der abgeschnittenen Materialbahn ist ein pneumatischer Antrieb mit einer elektromagnetischen Kupplung vorgesehen.For the precise further transport of the cut material web, a pneumatic drive with an electromagnetic clutch is provided.

Alternativ besteht auch die Möglichkeit, dass für den Antrieb der gummierten Vorschubwalze und den Weitertransport der abgeschnittenen Materialbahn ein Servomotor vorgesehen ist. Dieser Servo ersetzt gleichzeitig die Aufgabe der unter Punkt 14 beschriebenen Gleichstrommotor.Alternatively, there is also the possibility that a servomotor is provided for the drive of the rubberized feed roller and the further transport of the cut material web. This servo replaces the task of the DC motor described under point 14 at the same time.

Im folgenden wird die Erfindung an einem in der Zeichnung dargestellten Ausführungsbeispiel näher erläutert; es zeigen:

Fig. 1
die schematische Darstellung einer Vorderansicht der erfindungsgemäßen Vorrichtung mit den beiden spiegelbildlich aufgebauten Spliceeinheiten,
Fig. 2
eine isolierte, perspektivische Darstellung der in Figur 1 linken Spliceeinheiten in ihrer herausgezogenen Stellung,
Fig. 3
einen Längsschnitt IV-IV durch die Schneideinheit und den Klebetisch aus Figur 2,
Fig. 4A-4D
die einzelnen Verfahrensschritte zum Vorbereiten des Splicevorganges an der Schneideinheit,
Fig. 5A
eine der Figur 1 entsprechende Darstellung zur Kennzeichnung des Details in den Figuren 5B bis 5D,
Fig. 5B-5D
die Darstellung der Abfolge der Klebetischstellungen während des Splicevorganges, und
Fig. 6
eine perspektivische, schematische Darstellung der Vorschubeinheit zum Transport des beim Spicevorganges abgeschnittenen Folienendes mittels einer gummierten Vorschubwalze und einer Gegenrolle.
In Figur 1 ist eine Vorrichtung gezeigt, die zum Ersetzen einer auf einer Arbeitsrolle 1 angeordneten Materialbahn 3 durch eine auf eine Bereitschaftsrolle 2 bereitgestellten weiteren Materialbahn 3 dient. Die Bezeichnung Arbeitsrolle 1 ist dabei gewählt, da von dieser Arbeitsrolle 1 die Materialbahn 3 für den Produktionsprozess abgezogen und durch ein zwischen einer Arbeitsstellung und einer Splicestellung verschwenkbaren Pendel 4 der weiteren Verarbeitung zugeführt wird, während die Bereitschaftsrolle 2 als Reserve bereitgehalten wird, wenn die Arbeitsrolle 1 abgewickelt ist. Um einen störungsfreien Produktionsprozess zu ermöglichen, muss die eine Materialbahn 3 mit der anderen Materialbahn 3 verbunden werden, so dass für den fortgesetzten Produktionsprozess die Bereitschaftsrolle 2 die Funktion der Arbeitsrolle 1 übernehmen kann. Die Bezeichnung Arbeitsrolle 1 und Bereitschaftsrolle 2 ist also funktional zu einem gegebenen Zeitpunkt zu verstehen und wechselt im Laufe des Betriebs der Vorrichtung stetig zur Benennung der einzelnen Rolle 1, 2.In the following the invention will be explained in more detail in an embodiment shown in the drawing; show it:
Fig. 1
the schematic representation of a front view of the device according to the invention with the two mirror image constructed Spliceeinheiten,
Fig. 2
an isolated perspective view of the left in Figure 1 splice units in their extended position,
Fig. 3
a longitudinal section IV-IV through the cutting unit and the bonding table of Figure 2,
Figs. 4A-4D
the individual method steps for preparing the splicing process on the cutting unit,
Fig. 5A
1 is a representation corresponding to FIG. 1 for identifying the details in FIGS. 5B to 5D,
Figs. 5B-5D
the representation of the sequence of adhesive setting during the Splicevorganges, and
Fig. 6
a perspective, schematic representation of the feed unit for transporting the cut off during Spicevorganges foil end by means of a rubberized feed roller and a counter-roller.
FIG. 1 shows a device which serves for replacing a material web 3 arranged on a work roll 1 by a further material web 3 provided on a stand-by roll 2. The term work roll 1 is chosen because of this work roll 1, the material web 3 for the Removed production process and is supplied by a pivotable between a working position and a splitting position pendulum 4 further processing, while the standby role 2 is kept ready as a reserve when the work roll 1 is unwound. In order to enable a trouble-free production process, the one material web 3 must be connected to the other material web 3, so that the standby roller 2 can take over the function of the work roll 1 for the continued production process. The term work roll 1 and standby roll 2 is thus to be understood as functional at a given point in time and constantly changes in the course of operation of the device to designate the individual roll 1, 2.

Die Vorrichtung weist eine erste Spliceeinheit 5 mit einer ersten Spannwelle 6 und eine zweite Spliceeinheit 7 mit einer zweiten Spannwelle 8 auf, die in ihre Umfangsrichtung druckmittelbetätigbare Lamellen 9 zum Spannen der zugeordneten Rolle 1, 2, also der Arbeitsrolle 1 oder der Bereitschaftsrolle 2, sowie eine Scheibenbremse mit elekropneumatischer Druckregelung aufweisen.The device has a first splicing unit 5 with a first tensioning shaft 6 and a second splicing unit 7 with a second tensioning shaft 8, which in its circumferential direction druckmittelbetätigbare lamellae 9 for tensioning the associated roller 1, 2, that is the work roll 1 or the standby roll 2, as well have a disc brake with electro-pneumatic pressure control.

Zur Vorbereitung des Splicevorganges ist jede der Spliceeinheiten 5, 7 in der durch die Achse der zugeordneten Spannwelle 6, 8 definierten Richtung verschiebbar gelagert. Weiterhin weist jede Spliceeinheit 5, 7 auch eine Schneideinheit 10 und einen zum Toleranzausgleich federnd gelagerten Klebetisch 11 auf, wobei in der Schneideinheit 10 ein Gegenmesser 12 und ein druckmittelbetätigt verstellbares Schneidmesser 13 angeordnet sind, zwischen denen die Materialbahn verläuft (Figur 3). Außerdem umfasst die Schneideinheit 10 zur Fixierung der Materialbahn 3 eine Fixiereinheit 14, der ein Vakuumsauger 15 zugeordnet ist und die weiterhin eine druckmittelbetätigt verstellbare Klemmplatte 16 aufweist.To prepare the splicing process, each of the splicing units 5, 7 is displaceably mounted in the direction defined by the axis of the associated tensioning shaft 6, 8. Furthermore, each splice unit 5, 7 also has a cutting unit 10 and a resiliently mounted for tolerance compensation bonding table 11, wherein in the cutting unit 10, a counter knife 12 and a pressure medium-actuated adjustable blade 13 are arranged, between which the material web runs (Figure 3). In addition, the cutting unit 10 for fixing the material web 3 comprises a fixing unit 14, which is associated with a vacuum suction 15 and further comprising a pressure medium-operated adjustable clamping plate 16.

Dem Klebetisch 11 ist eine druckmittelbetätigt verstellbare Klemmrolle 17 zugeordnet (Figur 4), der weiterhin auch einen Vakuumsauger 18 sowie Saugkanäle 19 zur Fixierung der Lage eines an der Materialbahn 3 zu befestigenden Klebebandes 20 aufweist.The adhesive table 11 is associated with a pressure medium-actuated adjustable pinch roller 17 (Figure 4), which further also has a vacuum suction 18 and suction channels 19 for fixing the position of an attachable to the web 3 adhesive tape 20.

In der Spliceeinheit 5, 7 ist ein Sensor zum Erfassen des Bahnendes der zugeordneten Rolle 1, 2 angeordnet, der als induktiver Sensor zur Erfassung der Drehzahl der Spannwelle 6, 8 gestaltet ist.In the splicing unit 5, 7, a sensor for detecting the web end of the associated roller 1, 2 is arranged, which is designed as an inductive sensor for detecting the rotational speed of the clamping shaft 6, 8.

Mit einer Vorrichtung des vorstehend genannten Aufbaus ist es möglich, den Splicevorgang in der nachstehend geschildertes Weise auszuführen.With a device of the above construction, it is possible to carry out the splicing operation in the following manner.

Ausgangspunkt ist dabei der Zustand in Figur 1, bei der der rechten Spliceeinheit 7 die Arbeitsrolle 1 angeordnet ist, während in der linken Spliceeinheit 5 die Bereitschaftsrolle 2 positioniert ist. Es ist also der Zustand gezeigt, bei der die zuvor in der linken Spliceeinheit 5 angeordnete Arbeitsrolle 1 bereits durch Entspannen der Lamellen 9 von der Spannwelle 6 entfernt und durch eine Bereitschaftsrolle 2 mit einem vollständigen Bandwickel ersetzt ist. Um den Splicevorgang vorzubereiten, muss der Nutzer den Anfang der Materialbahn 3 der Bereitschaftsrolle 2 in der herausgezogenen Spliceeinheit 5 zur Schneideinheit 10 ziehen und für einen korrekten Bahnlauf ausrichten, wobei der Nutzer auf einen straffen Bahnverlauf zu achten hat (Fig. 2). Sobald die korrekte Lage der Materialbahn 3 erreicht ist, wird die Fixiereinheit 14 aktiviert und anschließend die Schneideinheit 10, um einen einwandfreien, nicht ausgefransten, nicht beschädigten oder geknickten Bahnanfang zu erzielen (Fig. 4A). Dieser Bahnanfang wird erneut eingefädelt und mittels der Fixiereinheit 14 geklemmt (Fig. 4B).The starting point is the state in FIG. 1, in which the right-hand splice unit 7 is arranged the work roll 1, while in the left splice unit 5 the standby roll 2 is positioned. It is thus shown the state in which the previously arranged in the left splice unit 5 work roll 1 is already removed by relaxing the slats 9 of the tensioning shaft 6 and replaced by a standby roller 2 with a complete tape roll. In order to prepare the splicing operation, the user has to pull the beginning of the material web 3 of the stand-by roll 2 in the extracted splicing unit 5 to the cutting unit 10 and align it for a correct web run the user has to pay attention to a tight trajectory (Fig. 2). As soon as the correct position of the material web 3 has been reached, the fixing unit 14 is activated and subsequently the cutting unit 10 in order to achieve a perfect, not frayed, undamaged or kinked web start (FIG. 4A). This web start is threaded again and clamped by means of the fixing unit 14 (FIG. 4B).

Bei der erfindungsgemäßen Vorrichtung wird der Splicevorgang unter Ausnutzung eines Klebebandes 20 ausgeführt, das auf die Materialbahn 3 halbseitig von oben angebracht wird. Dazu besteht die Möglichkeit, dem Nutzer eine Markierungslinie zur Verfügung zu stellen, damit dieser das Klebeband 20 mittig zu dem Ende der Materialbahn 3 und damit der Splicestelle setzen kann. Um an der Splicestelle ein Verhaken zu vermeiden, empfiehlt es sich, das freie Ende der Materialbahn 3 mit dem Klebeband 20 winklig abzuschrägen (Fig. 4C). Das so vorbereitete Ende der Materialbahn 3 wird von der Schneideinheit 10 abgezogen und um 270° nach unten auf den Klebetisch 11 geschwenkt und positioniert (Fig. 4D), auf dem die Lage durch den Vakuumsauger 18 sowie die Saugkanäle 19 gesichert wird. Nach diesen Handlungen sind die durch den Nutzer auszuführenden Vorbereitungstätigkeiten abgeschlossen und die Spliceeinheit 5 kann zurückgeschoben werden zur nachfolgenden automatischen Splicedurchführung.In the apparatus according to the invention, the splicing process is carried out by utilizing an adhesive tape 20, which is mounted on the material web 3 on one side from above. For this purpose, it is possible to provide the user with a marking line so that the latter can place the adhesive tape 20 in the center of the end of the material web 3 and thus of the splice point. In order to prevent snagging at the splicing point, it is recommended that the free end of the material web 3 be bevelled at an angle with the adhesive tape 20 (FIG. 4C). The thus prepared end of the material web 3 is withdrawn from the cutting unit 10 and pivoted by 270 ° down on the bonding table 11 and positioned (Fig. 4D), on which the position is secured by the vacuum suction 18 and the suction channels 19. After these actions, the preparatory activities to be performed by the user are completed, and the splicing unit 5 can be pushed back for subsequent automatic splice execution.

Wird durch den induktiven Sensor der Drehzahlabfall bzw. die Verlängerung der Umdrehungszeit der Spannwelle 8 erfasst, wird das lose Bahnende der Arbeitsrolle 1 in der anderen Spliceeinheit 7 durch die Fixiereinheit 14 geklemmt. Der Klebetisch 11 der die Arbeitsrolle 1 tragenden Spliceeinheit 7 wird ausgefahren und zugleich die Klemmrolle 17 des Klebetisches 11 aus der anderen Spliceeinheit 5 betätigt (Fig. 5C); dabei wird der weitere Produktionsprozess durch den von dem Pendel 4 bereit gestellten Vorrat der Materialbahn 3 aufrechterhalten. Die Schneideinrichtung 10 der die Arbeitsrolle 1 tragenden zweiten Spliceeinheit 7 schneidet die Materialbahn 3 ab und das Bahnende der Materialbahn 3 aus der die Arbeitsrolle 1 tragenden Spliceeinheit 7 wird auf deren Klebetisch 11 positioniert; anschließend fährt der Klebetisch 11 der die Bereitschaftsrolle 2 tragenden Spliceeinheit 5 aus (Fig. 5D), wodurch der Splicevorgang erfolgt. Danach wird der allen Vakuumsaugern 18 und Saugkanäle 19 anliegende Unterdruck abgeschaltet und die Fixiereinheit 14 geöffnet der Spliceeinheit 5 geöffnet. Die beiden Klebetische 11 werden zurückgefahren und die Materialbahn 3 kann von der in die Arbeitsrolle 1 umgewandelte Bereitschaftsrolle 2 aus der ersten Spliceeinheit 5 abgezogen werden zur Auffüllung des dem Pendel 4 zugeordneten Vorrats und zur Weiterführung der Produktion, wobei der Vorschub der Materialbahn 3 während des Produktionsprozesses mittels einer gummierten Vorschubwalze 22 erfolgt, die allerdings auch zum zum Plattwalzen der Splicestelle an einer Gegenrolle 23 genutzt wird. Für den Antrieb der Vorschubwalze 22 ist ein Gleichstrommotor vorgesehen, dem ein Getriebe zugeordnet ist.If the speed drop or the extension of the rotation time of the tensioning shaft 8 is detected by the inductive sensor, the loose web end of the work roll 1 in the other splicing unit 7 is detected by the fixing unit 14 clamped. The splicing table 11 of the splice unit 7 carrying the work roll 1 is extended and at the same time the pinch roller 17 of the splicing table 11 is actuated from the other splicing unit 5 (FIG. 5C); In this case, the further production process is maintained by the provided by the pendulum 4 supply of the material web 3. The cutting device 10 of the work roller 1 carrying the second splice unit 7 cuts off the material web 3 and the web end of the material web 3 from the working roll 1 bearing splice unit 7 is positioned on the bonding table 11; Subsequently, the splicing table 11 of the splicing unit 5 carrying the standby roller 2 extends (FIG. 5D), whereby the splicing operation takes place. Thereafter, the vacuum applied to all the vacuum cups 18 and suction channels 19 is switched off and the fixing unit 14 is opened open the splicing unit 5. The two adhesive tables 11 are moved back and the material web 3 can be deducted from the converted into the work role 1 ready roll 2 from the first splicing unit 5 to replenish the pendulum 4 associated supply and to continue production, wherein the feed of the material web 3 during the production process by means of a rubberized feed roller 22, which is, however, also used for the flat rolling of the splice point on a counter-roller 23. For driving the feed roller 22, a DC motor is provided, which is associated with a transmission.

Für den präzisen Weitertransport der abgeschnittenen Materialbahn 3 ist ein pneumatischer Antrieb 21 mit einer elektromagnetischen Kupplung vorgesehen ist.For the precise further transport of the cut material web 3, a pneumatic drive 21 is provided with an electromagnetic clutch.

Claims (19)

Vorrichtung zum Ersetzen einer auf einer Arbeitsrolle (1) angeordneten Materialbahn (3) durch eine auf einer Bereitschaftsrolle (2) bereitgestellen weiteren Materialbahn (3), mit einer ersten, eine erste Spannwelle (6) für die eine Rolle (1, 2) aufweisenden Spliceeinheit (5) und mit einer zweiten, eine zweite Spannwelle (6) für die zweite Rolle (1, 2) aufweisenden Spliceeinheit (7), dadurch gekennzeichnet, dass zur Vorbereitung des Splicevorganges jede der Spliceeinheiten (5, 7) in der durch die Achse der zugeordneten Spannwellen (6, 8) definierten Richtung verschiebbar gelagert ist, und dass jede der Spliceeinheiten (5, 7) eine Schneideinheit (10) und einen Klebetisch (11) aufweist.Device for replacing a material web (3) arranged on a work roll (1) by a further material web (3) provided on a stand-by roll (2), with a first, a first tensioning shaft (6) for the one roll (1, 2) Splice unit (5) and with a second, second tensioning shaft (6) for the second roller (1, 2) having Spliceeinheit (7), characterized in that in preparation for the splicing each of the splice units (5, 7) in the Axis of the associated clamping shafts (6, 8) is mounted displaceably defined direction, and that each of the splicing units (5, 7) has a cutting unit (10) and a bonding table (11). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass in der Schneideinheit (10) ein Gegenmesser (12) und ein druckmittelbetätigt verstellbares Schneidmesser (13) angeordnet sind, zwischen denen die Materialbahn (3) verläuft.Apparatus according to claim 1, characterized in that in the cutting unit (10) a counter knife (12) and a pressure medium-operated adjustable cutting blade (13) are arranged, between which the material web (3). Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Schneideinheit (10) zur Fixierung der Materialbahn (3) eine Fixiereinheit (14) umfasst.Apparatus according to claim 1 or 2, characterized in that the cutting unit (10) for fixing the material web (3) comprises a fixing unit (14). Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Fixiereinheit (14) mindestens ein Vakuumsauger (15) zugeordnet ist.Apparatus according to claim 3, characterized in that the fixing unit (14) is assigned at least one vacuum suction device (15). Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass in der Fixiereinheit (14) eine druckmittelbetätigt verstellbare Klemmplatte (16) angeordnet ist.Apparatus according to claim 3 or 4, characterized in that in the fixing unit (14) a pressure medium-operated adjustable clamping plate (16) is arranged. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass dem Klebetisch (11) eine druckmittelbetätigt verstellbare Klemmrolle (17) zugeordnet ist.Device according to one of claims 1 to 5, characterized in that the adhesive table (11) is associated with a pressure medium-actuated adjustable pinch roller (17). Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass dem Klebetisch (11) mindestens ein Vakuumsauger (18) für die Materialbahn (3) zugeordnet ist.Device according to one of claims 1 to 6, characterized in that the adhesive table (11) is assigned at least one vacuum suction device (18) for the material web (3). Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Klebetisch (11) Saugkanäle (19) für ein an der Materialbahn (3) zu befestigendes Klebeband (20) aufweist.Device according to one of claims 1 to 7, characterized in that the adhesive table (11) has suction channels (19) for an adhesive tape (20) to be fastened to the material web (3). Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Spannwelle (6, 8) in ihrer Umfangsrichtung druckmittelbetätigbare Lamellen (9) zum Spannen der zugeordneten Rolle (1, 2) sowie eine Scheibenbremse mit elektropneumatischer Druckregelung aufweist.Device according to one of claims 1 to 8, characterized in that the clamping shaft (6, 8) in its circumferential direction druckmittelbetätigbare lamellae (9) for clamping the associated roller (1, 2) and a disc brake with electropneumatic pressure control. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass in jeder Spliceeinheit (5, 7) ein Sensor zum Erfassen des Bahnendes der zugeordneten Rolle (1, 2) vorgesehen ist.Device according to one of claims 1 to 9, characterized in that in each splice unit (5, 7), a sensor for detecting the web end of the associated roller (1, 2) is provided. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass der Sensor als induktiver Sensor zur Erfassung der Drehzahl der Spannwelle (6, 8) gestaltet ist.Apparatus according to claim 10, characterized in that the sensor is designed as an inductive sensor for detecting the rotational speed of the tensioning shaft (6, 8). Vorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass die Materialbahn (3) der Arbeitsrolle (1) durch ein zwischen einer Arbeitsstellung und eine Splicestellung verschwenkbares Pendel (4) geführt ist.Device according to one of claims 1 to 11, characterized in that the material web (3) of the work roll (1) by a pivotable between a working position and a splitting position pendulum (4) is guided. Vorrichtung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass der Klebetisch (11) federnd gelagert ist.Device according to one of claims 1 to 12, characterized in that the adhesive table (11) is resiliently mounted. Vorrichtung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass eine Vorschubwalze (22) zum Vorschub der Materialbahn (3) vorgesehen ist.Device according to one of claims 1 to 13, characterized in that a feed roller (22) for advancing the material web (3) is provided. Vorrichtung nach Anspruch 14, dadurch gekennzeichnet, dass die Vorschubwalze (22) zum Plattwalzen der Splicestelle an einer Gegenrolle (23) vorgesehen ist.Apparatus according to claim 14, characterized in that the feed roller (22) is provided for the flat rolling of the splice point on a counter-roller (23). Vorrichtung nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, dass für den Antrieb der Vorschubwalze (22) ein Gleichstrommotor vorgesehen ist.Device according to one of claims 1 to 15, characterized in that for driving the feed roller (22) is provided a DC motor. Vorrichtung nach Anspruch 16, dadurch gekennzeichnet, dass dem Gleichstrommotor ein Getriebe zugeordnet ist.Apparatus according to claim 16, characterized in that the DC motor is associated with a transmission. Vorrichtung nach einem der Ansprüche 1 bis 17, dadurch gekennzeichnet, dass für den präzisen Weitertransport der abgeschnittenen Materialbahn (3) ein pneumatischer Antrieb (21) mit einer elektromagnetischen Kupplung vorgesehen ist. Um so einen stumpfen Stoß der beiden Materialbahnen (3) zu realisieren.Device according to one of claims 1 to 17, characterized in that for the precise further transport of the cut material web (3) a pneumatic Drive (21) is provided with an electromagnetic clutch. In order to realize such a blunt impact of the two material webs (3). Vorrichtung nach einem der Ansprüche 1 bis 17, dadurch gekennzeichnet, dass für den präzisen Weitertransport der abgeschnittenen Materialbahn (3) ein Servomotor vorgesehen ist.Device according to one of claims 1 to 17, characterized in that for the precise further transport of the cut material web (3) a servo motor is provided.
EP06024966A 2006-04-03 2006-12-02 Device for replacing a first material web by a second material web Not-in-force EP1842814B1 (en)

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EP1842814A3 (en) 2008-06-04
ATE457947T1 (en) 2010-03-15
DE102006015477B3 (en) 2007-12-20
EP1842814B1 (en) 2010-02-17
US20070228206A1 (en) 2007-10-04
DE502006006170D1 (en) 2010-04-01
US7621479B2 (en) 2009-11-24
JP2007277010A (en) 2007-10-25

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