EP4163239B1 - System zum abwickeln und schnellen wechseln von rollen in einer linie zur herstellung eines blattprodukts - Google Patents

System zum abwickeln und schnellen wechseln von rollen in einer linie zur herstellung eines blattprodukts Download PDF

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Publication number
EP4163239B1
EP4163239B1 EP21201834.5A EP21201834A EP4163239B1 EP 4163239 B1 EP4163239 B1 EP 4163239B1 EP 21201834 A EP21201834 A EP 21201834A EP 4163239 B1 EP4163239 B1 EP 4163239B1
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EP
European Patent Office
Prior art keywords
reel
product
unwinder
unwinders
inline
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.)
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Application number
EP21201834.5A
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English (en)
French (fr)
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EP4163239A1 (de
Inventor
Carlo Comerio
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RODOLFO COMERIO Srl
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RODOLFO COMERIO Srl
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Priority to EP21201834.5A priority Critical patent/EP4163239B1/de
Publication of EP4163239A1 publication Critical patent/EP4163239A1/de
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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
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1805—Flying splicing, i.e. the expiring web moving during splicing contact
    • B65H19/181—Flying splicing, i.e. the expiring web moving 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
    • 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
    • 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/412—Roll
    • B65H2301/4127—Roll with interleaf layer, e.g. liner
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/413—Supporting web roll
    • B65H2301/4134—Both ends type arrangement
    • B65H2301/41346—Both ends type arrangement separate elements engaging each end of the roll (e.g. chuck)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/413—Supporting web roll
    • B65H2301/4135—Movable supporting means
    • B65H2301/41358—Movable supporting means moving on an arc of a circle, i.e. pivoting supporting 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4143—Performing winding process
    • B65H2301/41432—Performing winding process special features of winding process
    • B65H2301/414324—Performing winding process special features of winding process involving interleaf web/sheet, e.g. liner
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/40—Holders, supports for rolls
    • B65H2405/42—Supports for rolls fully removable from the handling machine
    • B65H2405/422—Trolley, cart, i.e. support movable on floor
    • B65H2405/4221—Trolley, cart, i.e. support movable on floor for both full and empty (or partial) 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
    • B65H2801/00—Application field
    • B65H2801/93—Tyres

Definitions

  • the invention relates to the field of industrial lines for the continuous production of laminated sheet products, typically represented by multilayer laminates for various technical uses.
  • the invention relates in particular to a system for the unwinding and quick change of reels.
  • these lines are calendering lines where the process steps include passing the product between pairs of rollers.
  • a calendering operation can be used to couple two layers together, or to apply an elastomer layer on a textile or metal substrate.
  • the materials used in the process are typically wound in reels and, from them, continuously fed to the line by means of suitable unwinders.
  • An unwinder is generally adapted to support a product reel and to feed the line with the product unwinding from said reel.
  • the sheet product has sticky surfaces, for example because it comprises a surface layer of soft elastomer, it is necessary to prevent the product from adhering to itself, which could make the reels useless.
  • a so-called service wrap which can be for example a suitable fabric.
  • Each turn of the reel is formed by interposing the service wrap between the adjacent layers of product, so that the product is wound always in contact with said service material and not with itself.
  • Handling the reels is a complex operation that must be performed with caution because the sheet product is delicate, especially when having a considerable width and/or has a sticky surface.
  • Products of interest for tyre manufacturing, including rubberised fabrics, are notoriously difficult and delicate to handle.
  • the reels have generally a diameter of about 1 metre and, consequently, they have a considerable weight.
  • the junction between the tail end of the depleted reel and the leading end of the new reel is generally performed manually with the aid of a press and takes a considerable amount of time.
  • the invention addresses the technical problem of how to make the above described reel changing operation easier and quicker.
  • the invention aims to speed up the reel change operation to reduce the impact on the process and, in particular, to reduce the size of the buffer accumulator which is required to avoid interruption of the production process during the change. Furthermore, the invention aims to automate the reel changing operation to make it repeatable and less prone to human error.
  • the aims are achieved with a system for unwinding and quick change according to claim 1.
  • the invention also relates to a process for the change of a reel according to claim 9.
  • the system of the invention uses at least one pair of unwinders.
  • a first unwinder is in running position and carries a first product reel that feeds the line. Said first reel can be termed inline reel.
  • a second unwinder is in a standby position and carries a second reel of said product, which is not connected to the line (i.e. not fitted) and can be referred to as a reserve reel.
  • At least one of said two unwinders comprises a movable reel shaft on which the respective product reel is mounted.
  • Said two unwinders are placed side by side and positioned with the respective facing product reels, at a distance such that a movement of said movable shaft can bring the inline reel and the reserve reel to contact with each other, so as to form a junction between a tail of the in-ine reel and a head of the reserve reel.
  • Said junction allows the inline insertion of the second reel to replace the first one.
  • the junction between the tail of the inline reel and the head of the reserve reel is achieved thanks to the movable shaft which brings the reels into contact with each other, with adequate pressure.
  • the movable shaft can be, for example, pneumatically driven.
  • Adhesion between the reels may be provided by an adhesive property of the product itself and/or by an adhesive applied on one of the reels for this purpose.
  • the product may have sufficient adhesive property to create a junction, for example if it has a soft elastomer-coated surface.
  • an adhesive means preferably a double-sided tape, on the tail of the first reel and/or on the head of the second reel. If used, said adhesive means is preferably applied on the head of the reserve reel which can be handled while the other one is running, or can be prepared in advance with the adhesive means.
  • the invention achieves the above-mentioned aims.
  • the reel change operation can be carried out in a short time and almost automatically, reducing the manual intervention. Note that the inline reel is stopped only for the short time necessary to place it on the new reserve reel and then production is resumed immediately.
  • the invention provides an automatic joining system by contact, making use of the adhesiveness of the product or, if necessary, of an additional adhesive means, to join the tail of the inline reel to the head of the new reel.
  • the invention facilitates the recovery thereof as will be explained in more detail below. This is advantageous because the service wrap has a cost and there is an interest in its reuse.
  • a particularly interesting application of the invention relates to the lines that produce products for the manufacture of vehicle tyres.
  • Such products may be, for example, plies for manufacturing specific parts of tyre.
  • said unwinders each comprise a further shaft to support a reel of collection of the service wrap during the unwinding of the product.
  • the system includes at least one pair of unwinders. In practice, a larger number of such groups can also be envisaged according to requirements.
  • the line has a suitable feeding zone suitable for receiving at least two unwinders, that is, the unwinder running with the inline reel and a reserve unwinder.
  • the system of the invention uses two or more interchangeable unwinders, each provided with a movable shaft for supporting the product reel.
  • the unwinders alternate in the role of running unwinder and reserve unwinder.
  • the unwinder that was set up as a reserve becomes the running unwinder; similarly, the unwinder that was previously running, which for sake of simplicity is termed depleted unwinder, can be removed from the line, prepared with a new product reel, and repositioned in the line where it will act as a reserve.
  • the depleted unwinder after the change has been completed, is advantageously displaced to another area to recover the service wrap, if any, and to prepare the new product reel, then it is brought back in line and placed in the reserve position.
  • each unwinder will alternate between the position in use and the reserve position. With a greater number of unwinding groups they can be used in rotation.
  • a pair of unwinders suitably positioned in line, forms an unwinder group capable of performing an automatic joint by contact.
  • movable shaft means that the axis of the shaft has a degree of freedom of movement with respect to a frame of the respective unwinder. This means that the shaft, in addition to rotation around its own axis, can also move with respect to a frame of the unwinder frame. Said movable shaft is preferably tilting. In this case, the axis of the shaft can travel a circular arc-like trajectory with respect to a horizontal fulcrum axis.
  • the movable shaft is preferably with pneumatic actuation, for example with a suitable cylinder-stem type actuator.
  • the movable shaft can be made by providing a suitable system for moving the supports of the shaft.
  • the movable shaft is supported by two shoulders positioned on opposite sides of the unwinder, each of said shoulders having a base hinged to the frame of the unwinder and a head carrying the shaft.
  • the movable shaft can be effectively controlled with a pair of pneumatic actuators, each having the cylinder hinged to a fixed part of the frame and the stem hinged to one of said shoulders, or vice versa.
  • the thrust provided by the movable shaft is determined so as to cause the desired junction by adhesion.
  • the unwinders are suitably held in place in the direction of the thrust, so that the force is transmitted to the reels.
  • An unwinder for use in the system of the invention therefore comprises, in a particularly preferred embodiment: a frame; a first shaft to support the product reel; a second shaft to accommodate the service wrap as the product is being unwound; a pair of supports of the first shaft that are hinged to the frame with a tilting movement; and a pair of pneumatic actuators arranged to control said tilting movement of the supports of the first shaft.
  • the unwinders are shaped like trolleys.
  • the unwinding trolleys are wheeled to facilitate handling in the production site.
  • the unwinders can be inserted in the line and removed from the line on dedicated guides.
  • said unwinders can be inserted/extracted laterally with respect to a direction of transport of the product, which is the longitudinal direction along which the line itself is predominantly developed.
  • the unwinders also comprise the motors and transmission groups necessary to rotate the shafts, unwind the product and collect the service wrap.
  • the reel change process includes positioning two unwinders of the type described above in a suitable feeding zone of the line, one acting as a running unwinder, with inline reel, and one acting as a reserve reel, ready to replace the inline product reel when the latter is close to depletion.
  • the process for a quick change comprises, in order, the operations of:
  • both unwinders carry the product reel on a movable shaft.
  • the junction is made by actuating a movable shaft of the inline reel, i.e. the reel is displaced in line, now almost depleted, causing it to extend towards the new reel. In fact, it is preferable to displace the depleted reel which has a lower mass and inertia.
  • the adhesion between product surfaces may be caused partly or wholly by an adhesive property of the product surface.
  • This adhesive property may be due to a soft elastomer layer present in the product.
  • the applicant has noted that rubberised fabrics used in the field of tyre manufacture lend themselves to the application of the invention and generally have an adhesiveness such as to create a sufficiently stable junction.
  • the adhesion can also be partially or wholly caused with a suitable adhesive means positioned on the product surface of one of the two reels. In this case, it is preferable to position a double-sided tape on the head of the reserve reel.
  • the operation of disconnecting the depleted reel from the line leads to the depletion of the inline reel or comprises the step of cutting off a tail of the inline reel after forming the junction.
  • the respective unwinder can be separated from the line and taken to the appropriate working area where the service wrap is recovered and a new product reel is mounted. Once this is done, the unwinder may be repositioned as a reserve. It is understood that the invention also improves and rationalises the handling of the unwinders within the production site, and the management of the service wrap.
  • Fig. 1 shows, in a simplified manner, a portion of a production line 1 in which a sheet of elastomeric material 2 is intended to be coupled to a product 3 represented by a rubberised fabric, also called "ply" in the technical field.
  • Said product 3 more precisely is formed by a textile support to which an elastomer layer has been applied on one or both surfaces.
  • the sheets 2 and 3 are carried by belts 20 and 21 shown schematically in Fig. 1 .
  • the product resulting from the coupling between the sheet 2 and the rubberised fabric or ply 3 typically serves for the production of parts of tyres.
  • the coupling between the sheets 2 and 3 is achievable with known techniques and is not shown in the figure.
  • the reel 4 is suitably fitted so that the product 3 unwound from said reel 4 can feed the process through the belt 21.
  • the line 1 has a zone 8 that is suitably arranged to accommodate said unwinding trolleys 5 and 6.
  • the trolleys are provided with wheels and can be extracted laterally from the line on guides 9 obtained in the flooring 22 of the installation room.
  • the product 3 has sticky surfaces, due to the elastomer layers, therefore the reels 4 and 7 are wound on a service fabric.
  • the unwinding trolleys 5 and 6 are consequently structured to collect the service fabric as the product 3 is being unwound.
  • Fig. 1 shows a condition in which the reel 4 is in line and feeds the process, however it is close to depletion as can be understood by noting the small diameter of the reel.
  • the unwinding trolley 5 comprises a frame 10; a first support 11 for a shaft 12 of the product reel; a second support 13 for a shaft 14 of the service fabric.
  • the shafts 12 and 14 are rotated by motors and transmission groups, on board the trolley 5, which for the sake of simplicity are not shown in the figures.
  • the inline reel 4 is almost depleted, the dashed line 4' which indicates the size of the new reel can be noted for comparison. It should also be noted that the product 3, which is sent to the production line, and the service fabric 15, which is wound on a reel 16 around the shaft 14, are simultaneously unwound from the reel 4.
  • the support 11 is tiltable with respect to the frame 10 around a fulcrum 17.
  • Said movable support 11 can substantially follow a circular arc-like trajectory with respect to a horizontal axis passing through the fulcrum 17 and perpendicular to the plane of Fig. 2 .
  • the movement of the support 11 with respect to the frame 10 is pneumatically controlled.
  • the shaft 12 is also tiltable with respect to the frame 10 of the trolley.
  • the unwinding trolley 6 does not need to be described because constructively it is the same as the unwinding trolley 5. It should be noted that the trolleys 5 and 6 are positioned opposite each other in a specular arrangement, so that the reels 4 and 7 face each other and at a short distance. As far as the unwinding trolley 6 is concerned, it is sufficient to note that it carries the new product reel 7; the respective reel 18 of the service fabric is at the minimum size since obviously the service fabric is wound in the reel 7 together with the product 3. The line 18' shows the size that the service fabric reel will assume at the end of the unwinding.
  • Fig. 2 it can be seen that the pneumatic tilting movement of the shaft 12, to the left in the figure, brings the inline reel 4 into contact with the new reel 7.
  • the contact causes adhesion between respective surfaces of the product 3 with the effect of forming a junction between the tail of the reel 4 and the head of the reel 7.
  • a junction is formed along the contact line 19.
  • arrow A indicates the movement of the support 11 around the fulcrum 17. It should be noted that the shaft 12, and with it the reel 4, extend towards the new reel 7 placed frontally, obtaining the desired effect of substantially automatic joint between the depleted reel and the new reel.
  • Said junction is caused by the pneumatic thrust, which brings the product surfaces into contact with each other with adequate pressure, and by the adhesive properties of the product itself.
  • a double-sided adhesive can be applied on the surface of the product 3 to facilitate the junction.
  • the junction is formed after temporary stop of the reel 4.
  • the reel 7 is able to feed the product 3 to the line, i.e. it becomes the new inline reel.
  • the unwinding trolley 5 can be extracted laterally from the line to remove the reel 16 of service fabric, to be recovered for later use, and to prepare a new product reel on the shaft 12. With this set up, the trolley 5 can be moved back into position, opposite the trolley 6. There will therefore be a specular situation with respect to that of Fig. 2 , in which, once the reel 7 has been consumed, the pneumatically driven shaft of the trolley 6 is activated to make the junction with the new reel mounted on the trolley 5.
  • pneumatic actuators are not shown in the figures for the sake of simplicity.
  • one or more pneumatic actuators can be provided in each of the trolleys having a cylinder pivoted to a suitable fixed part of the frame 10 and a stem pivoted to the support 11.

Landscapes

  • Replacement Of Web Rolls (AREA)

Claims (16)

  1. System zum Abwickeln und schnellen Wechseln von Spulen eines blattförmigen Produkts (3), das einer kontinuierlichen Produktionslinie (1) zugeführt wird, wobei:
    das System mindestens ein Paar Abwickler umfasst, von denen ein erster Abwickler (5) in einer Betriebsposition ist und eine Spule (4) mit Linienprodukt trägt und ein zweiter Abwickler (6) in einer Reserveposition ist und eine Reservespule (7) des Produkts trägt, die nicht mit der Linie verbunden ist;
    und das System dadurch gekennzeichnet ist, dass mindestens einer der beiden Abwickler eine bewegliche Welle (12) aufweist, auf der die jeweilige Produktspule montiert ist;
    und wobei die beiden Abwickler nebeneinander angeordnet sind und so positioniert sind, dass die jeweiligen Produktspulen sich einander in einem Abstand gegenüberliegen, dass eine Bewegung der beweglichen Welle (12) die Linienspule (4) und die Reservespule (7) in Kontakt miteinander bringen kann, um eine Verbindung (19) zwischen einem Ende der Linienspule und einem Kopf der Reservespule zu bilden, so dass das Einsetzen in die Linie der Reservespule ermöglicht wird, um die vorherige zu ersetzen.
  2. System nach Anspruch 1, wobei das Produkt (3) eine äußere Schicht mit Adhäsionseigenschaft aufweist, wobei sich die Adhäsion zwischen den Oberflächen und die sich daraus ergebende Verbindung durch die Adhäsionseigenschaften des Produkts hervorgerufen wird, und/oder mit der Zugabe eines Klebstoffs, insbesondere eines doppelseitigen Klebstoffs, der bevorzugt auf einem Ende der Linienspule angeordnet ist.
  3. System nach einem der Ansprüche 1 oder 2, wobei das Produkt (3) in Spulen aufgewickelt wird, mit einer dazwischenliegenden Hilfsumhüllung (15), die geeignet ist, ein Anhaften des Produkts an sich selbst zu vermeiden, wobei der erste Abwickler (5) und der zweite Abwickler (6) jeweils eine Welle (14) zum Tragen einer Spule (16) umfassen, die die Hilfsumhüllung aufnimmt.
  4. System nach einem der vorhergehenden Ansprüche, wobei die bewegliche Welle (12) in Bezug auf einen Rahmen (10) des jeweiligen Abwicklers kippbar ist.
  5. System nach Anspruch 4, wobei die bewegliche Welle (12) von zwei Schultern (11) getragen wird, die auf gegenüberliegenden Seiten des Abwicklers angeordnet ist, wobei jede der Schultern eine am Rahmen des Abwicklers angelenkten Rahmen des Abwicklers und einen Kopf hat, der die Welle (12) trägt.
  6. System nach einem der vorhergehenden Ansprüche, wobei die Welle (12) mit pneumatischer Betätigung beweglich ist.
  7. System nach einem der vorhergehenden Ansprüche, wobei die beiden Abwickler (5, 6) austauschbar sind, wobei jeder die bewegliche Welle (12) für die Produktspule aufweist und jeder der beiden Abwickler sowohl als laufender Abwickler zur Produktzuführung und als Reserveabwickler verwendbar ist.
  8. System nach einem der vorhergehenden Ansprüche, wobei die Abwickler (5, 6) als Wagen konfiguriert sind.
  9. Verfahren zum Wechseln einer Zuführspule für ein blattförmiges Produkt (3) zu einer kontinuierlichen Produktionslinie (1), wobei:
    in einer Zuführzone (8) der Anlage (1) ein Paar Abwickler (5, 6) vorgesehen ist, von denen:
    ein erster Abwickler (5) eine erste Spule (4) des Produkts trägt und als ein laufender Abwickler agiert, der die Linie mit von der ersten Spule abgewickeltem Produkt versorgt;
    ein zweiter Abwickler (6) eine zweite Spule (7) des Produkts trägt und als Reserveabwickler agiert, wobei die zweite Produktspule nicht mit der Linie verbunden ist;
    und das Verfahren dadurch gekennzeichnet ist, dass
    mindestens einer der Abwickler eine bewegliche Welle (12) für die jeweilige Produktspule aufweist;
    der erste Abwickler und der zweite Abwickler nebeneinander platziert sind und mit den jeweiligen Produktspulen gegenüberliegend angeordnet sind,
    wobei die Produktspulen in einem solchen Abstand angeordnet sind, dass eine Bewegung der beweglichen Welle sie in Kontakt bringen kann;
    und wobei das Verfahren für ein schnelles Wechseln in der Reihenfolge die folgenden Schritte umfasst:
    i) vorübergehendes Anhalten des Abwicklers der ersten Rolle (4), die sich in der Linie befindet;
    ii) Steuern einer Verschiebung der beweglichen Welle, sodass die Spulen (4, 7) in Kontakt miteinander gebracht werden, mit einem Anpressdruck, der geeignet ist, eine Verbindung durch Adhäsion zwischen einem Ende der ersten Spule (4) und einem Kopf der zweiten Spule (7) herzustellen;
    iii) Trennen der ersten Spule von der Linie.
  10. Verfahren nach Anspruch 9, wobei der erste Abwickler mit einer beweglichen Welle ausgestattet ist und der Schritt ii) eine Verschiebung der beweglichen Welle umfasst, so dass sich die Linienspule zu der Reservespule erstreckt, bis sie einen Kontakt herstellt und die Verbindung bildet.
  11. Verfahren nach Anspruch 9 oder 10, wobei während Schritt ii) die Adhäsion zwischen den Oberflächen des Produkts durch eine Adhäsionseigenschaft der Produktoberfläche und/oder durch einen Kleber erreicht wird, der auf der Produktoberfläche einer der beiden Spulen angeordnet ist.
  12. Verfahren nach einem der Ansprüche 9 bis 11, wobei der Schritt iii) zur Entleerung der Linienspule führt oder den Schritt des Abschneidens eines Endes der Linienspule umfasst.
  13. Verfahren nach einem der Ansprüche 9 bis 12, wobei die zwei Abwickler konstruktiv austauschbar sind, wobei jeder eine bewegliche Welle (12) für die jeweilige Spule umfasst, und jeder der beiden Abwickler abwechselnd als laufender Abwickler genutzt wird, der die Linienproduktspule trägt und als Reserveabwickler.
  14. Verfahren nach einem der vorherigen Ansprüche, wobei die Abwickler seitlich zu der Linie bewegt werden in Bezug auf eine Längsrichtung des Produktfortschritts.
  15. Verfahren nach einem der Ansprüche 9 bis 14, wobei das blattförmige Produkt mindestens ein Substrat und eine auf mindestens einer Seite des Substrats angebrachte Elastomerschicht umfasst, und wobei die Produktionslinie eine Produktionslinie für Reifenkomponenten ist.
  16. Verfahren nach einem der Ansprüche 9 bis 15, das unter Verwendung des Systems nach einem der Ansprüche 1 bis 8 durchgeführt wird.
EP21201834.5A 2021-10-11 2021-10-11 System zum abwickeln und schnellen wechseln von rollen in einer linie zur herstellung eines blattprodukts Active EP4163239B1 (de)

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EP4163239B1 true EP4163239B1 (de) 2024-04-10

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DE1250709B (de) * 1961-07-08 1967-09-21
FR1444770A (fr) * 1965-04-30 1966-07-08 Pierre Hanssen & Cie S A Procédé de commande pour dérouleuses et dérouleuse, notamment pour bobines de papier, appliquant ce procédé
WO2004022466A1 (en) * 2002-09-04 2004-03-18 Lowrey John D Jr Method and apparatus for reducing newsprint waste during printing process
DE20303348U1 (de) * 2003-03-01 2003-05-22 Voith Paper Patent Gmbh Tambourwagen

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