EP4086211B1 - Filmaufwickler-maschine mit einem fehlerausrichtungsdetektor und ein fehlausrichtungs-erkennungsverfahren in einer filmaufwickler-maschine - Google Patents

Filmaufwickler-maschine mit einem fehlerausrichtungsdetektor und ein fehlausrichtungs-erkennungsverfahren in einer filmaufwickler-maschine Download PDF

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Publication number
EP4086211B1
EP4086211B1 EP21382401.4A EP21382401A EP4086211B1 EP 4086211 B1 EP4086211 B1 EP 4086211B1 EP 21382401 A EP21382401 A EP 21382401A EP 4086211 B1 EP4086211 B1 EP 4086211B1
Authority
EP
European Patent Office
Prior art keywords
rewinder
film
shaft
roll
film band
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.)
Active
Application number
EP21382401.4A
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English (en)
French (fr)
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EP4086211A1 (de
Inventor
Jordi Prat Gil
Jordi ARGILÉS LLORENS
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Comexi Group Industries SA
Original Assignee
Comexi Group Industries SA
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 Comexi Group Industries SA filed Critical Comexi Group Industries SA
Priority to EP21382401.4A priority Critical patent/EP4086211B1/de
Priority to ES21382401T priority patent/ES2965263T3/es
Priority to CA3157171A priority patent/CA3157171A1/en
Publication of EP4086211A1 publication Critical patent/EP4086211A1/de
Application granted granted Critical
Publication of EP4086211B1 publication Critical patent/EP4086211B1/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
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/0204—Sensing transverse register of 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B65H2301/41486—Winding slitting winding on two or more winding shafts simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/50—Use of particular electromagnetic waves, e.g. light, radiowaves or microwaves
    • B65H2557/51—Laser
    • 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
    • B65H2701/13—Parts concerned of the handled material
    • B65H2701/131—Edges
    • B65H2701/1315—Edges side edges, i.e. regarded in context of transport

Definitions

  • the present invention is directed towards film rewinder machine comprising a misalignment detector and a misalignment detection method for a film rewinder machine.
  • a film rewinder machine is a machine which conveys a film band in a conveyance direction through a conveyance path reaching a rewinder station, where said film band in wound around a core to form a roll.
  • the machine can include several stations in successive segments of the conveyance path to perform different operations on the film band, such as cutting, printing, laminating, among others.
  • the misalignment detector detects a side edge misalignment of the side edges of the film bands wind in the roll, which produces a problem known as telescoping.
  • Rewinding machines receiving one or several film bands from a film feeder for rewinding one or several rolls simultaneously are already known.
  • said film feeder transport the film band or film bands in tension through a convey path defined between parallel feeder shafts to a rewinder station where each film band is winded around a core supported on a winding shaft forming a roll.
  • the film material constitutive of the film band is introduced in the film feeder from an unwinding roll supported in an unwinding shaft.
  • Documents KR19970047895A and WO2020046010A1 describe an alternative solution to detect edge misalignment in a roll, using an obliquus light and a camera facing the side surface of the roll for detecting the shadows projected by the edge misalignments. This detection system presents similar problems than the previously described system.
  • Document US 6 595 460 discloses another example of a edge aligment system in a printer unit.
  • the present invention solves the above and other problems.
  • the present invention is directed, according to a first aspect, towards a film rewinder machine comprising a misalignment detector.
  • the proposed machine comprises, in a manner known in the state of the art:
  • the film feeder provides the rewinder station with a continuum stream of a tensioned film band conveyed in a convey direction following a convey path.
  • the film feeder comprises a plurality of feeder shafts parallel to each other which support the film band defining said convey path.
  • the film rewinder machine can be, for example, a slitting machine, a lamination machine, or a printing machine such a digital printing machine, a flexographic printing machine or an offset printing machine.
  • the laminar flexible material can be for example a plastic film material, which typically has some degree of elasticity, or a paper material.
  • Said film band is conveyed through the convey path maintaining two opposed side edges of the film band in correspondent predefined edge positions in a transverse direction.
  • Said transverse direction is a direction perpendicular to the convey direction and coplanar with the film band.
  • the transverse direction is parallel to the feeder shafts. According to that, each side edge of the film band is maintained, during its conveyance along the conveyance path, in a plane perpendicular to said feeder shafts, maintaining the film band between two of said planes parallel to each other spaced apart a film band width distance.
  • the rewinder station includes at least one rewinder shaft, typically parallel to the feeder shafts, which supports at least one core connected to one end of the film band.
  • the rewinding shaft includes a retention device configured to retain the core in a predefined position in the transverse direction and also in an angular position, so that the actuated rotation of the rewinding shaft produces the rotation of the at least one core, producing the winding of the film band around the core, generating a roll.
  • the actuated rotation of the rewinding shaft is coordinated, through a control device, with an actuated rotation of at least some of the feeder shafts to keep the film band at a predefined tension, considering the variation in diameter of the winded roll.
  • the proposed invention further comprises the following elements, not known in the state of the art:
  • a laser telemeter is a device including a laser emitter and a laser receiver adjacent to each other configured to emit a narrow laser beam through the laser emitter and to detect, through the laser receiver, a reflected light from said laser beam impacting against an object facing the laser emitter.
  • the time of flight of the light between the emission of the laser beam and the detection of the reflected light allows a precise measurement of the existing distance between the laser emitter and the object interrupting the laser beam.
  • the laser telemeter is configured to emit a laser beam in a plane perpendicular to the at least one rewinder shaft, in a plane perpendicular to the transverse direction, and directed towards the at least one rewinder shaft, it is to say that the laser beam is emitted preferably against the at least one rewinder shaft or adjacent to said at least one rewinder shaft, preferably perpendicular thereto.
  • the laser telemeter is also configured to be positioned, in the transverse direction, in a measurement position where said plane, through which the laser beam is emitted, is placed at an offset distance, in the transverse direction, in regard to plane containing one side edge of the film band positioned at the predefined edge position.
  • the laser beam, emitted in said measurement position is parallel to a side surface of one roll formed in the at least one rewinder shaft, the side surface facing said laser beam, and the laser beam is separated from said side surface the offset distance. Any deviation, equal or bigger than the offset distance, of the side edge of the film band winded in the roll in regard to the predefined side edge position will interfere with the laser beam producing a detection of the edge misalignment.
  • the laser telemeter can detect the distance between the laser emitter and the side edge causing said interruption and therefore, it can detect which portion of the roll includes the side edge misalignment.
  • the present invention is directed to a film rewinder operational method of a film rewinder machine.
  • the method comprises:
  • the present invention further proposes, in a manner not known in the state of the art, the following steps:
  • the proposed method which can be applied to a machine such the machine described above, includes a first step for detecting an edge misalignment using at least one laser telemeter.
  • the information obtained by said laser telemeter is associated with the operational parameters existing in the machine during the winding of the film band.
  • the operational parameters can be modified to avoid or reduce the presence of edge misalignments in future winding operations.
  • the analysis of the at least one side edge can be performed by projecting at least one laser beam towards the at least one rewinder shaft in a plane perpendicular to the at least one rewinder shaft, said plane being at an offset distance, in the transversal direction, over the predefined edge position and by measuring the fly time said laser beam.
  • the proposed film rewinder machine with misalignment detector includes a film feeder (not shown) which conveys a film band 1 of a laminar flexible material in a conveyance direction CD along a conveyance path 3 towards a rewinder station 10.
  • Said film feeder also includes an automatic film tensioning device to keep the film band 1 at a constant tension during its conveyance, avoiding variations in the tension of the film band 1, which could produce an elastic elongation of the film band 1, causing a width reduction.
  • This automatic film tensioning device is well known in the state of the art and many different approaches are possible, typically including a very precise control of the rotation speeds of several cylinders on which the film band 1 is supported along the conveyance path 3.
  • the film feeder is also configured to maintain the two opposed side edges E of the film band 1 in predefined edge positions in the transverse direction TD.
  • Said transverse direction TD is a direction perpendicular to the conveyance direction CD. This can be achieved, for example, using an optical detector to determine the precise position of the side edge E of the film band 1.
  • the rewinder station 10 is feed with the film band 1 from the film feeder and rewinds said film band 1 around at least one core supported on a rewinder shaft 11a, 11b perpendicular to the conveyance direction CD.
  • the machine further comprises at least one laser telemeter 20 configured to project a laser beam towards the rewinder shaft 11a, 11b, in a plane perpendicular to the rewinder shaft 11a, 11b.
  • Said laser telemeter 20 is placed in a measurement position at an offset distance from the film edge, so that a misalignment of said film edge equal to or bigger than said offset distance will interrupt the laser beam producing its detection.
  • the at least one laser telemeter 20 are two laser telemeters 20 configured to project parallel laser beams separated a distance, in the transverse direction TD, equal to the distance between the two opposed edges of the film band 1 in the transverse direction TD plus two times the offset distance to detect any edge misalignment simultaneously on both side surfaces of the same roll 4.
  • each film band 1 will be wound around an independent core supported on the at least one rewinder shaft 11a, 11b defining one roll 4.
  • the machine can comprise a carriage 21, supporting said at least one laser telemeter 20, slidably attached to a transverse guide and automatically actuated to be moved along said transverse guide in the transverse direction TD and to be stopped placing the at least one laser telemeter 20 over at least one of said measurement positions to measure misalignments of different side edges E of the film bands 1 wound in the rolls.
  • FIG. 3B different stop positions of the same laser telemeter 20 in the same machine are shown. In that manner, a single laser telemeter 20 can analyze all the side edges of all the rolls winded simultaneously on the same axis.
  • the at least one laser telemeter 20, or a mirror affecting the laser beam emitted by the at least one laser telemeter 20 is pivotally mounted around an axis parallel to the at least one rewinder shaft 11a, 11b and is automatically actuated to alternatively direct the laser beam towards the at least one upper rewinder shaft 11a and towards the at least one lower rewinder shaft 11b, one single laser telemeter 20 can analyze all the side edges of all the rolls winded simultaneously on several axis.
  • Said carriage 21 can support one or several laser telemeters 20, for example two laser telemeters 20 emitting parallel laser beams as described above.
  • the carriage 21 is automatically actuated to be moved in the transverse direction TD along the transverse guide, to position the laser telemeters 20 in different measurement positions to detect misalignments on different side surfaces of the same roll 4 or of different rolls.
  • the at least one rewinder shaft 11a, 11b includes at least one upper rewinder shaft 11a and at least one lower rewinder shaft 11b parallel to each other, wherein the conveyance path 3 splits between an upper conveyance path 3a, which conveys one or several upper film bands 1a, connected to the at least one upper rewinder shaft 11a and a lower conveyance path 3b, which conveys one or several lower film bands 1b, connected to the at least one lower rewinder shaft 11b.
  • the at least one upper rewinder shaft 11a supports one core for each upper film band 1a, which is winded around said core defining an upper roll.
  • the at least one lower rewinder shaft 11b supports one core for each lower film band 1b, which is winded around said core defining a lower roll.
  • the at least one upper film band 1a and the at least one lower film band 1b are alternated film bands 1 so that the upper film bands 1a forming the upper rolls are separated, in the transverse direction TD, a distance equal to the width of the lower film bands 1b, and the lower film bands 1b are separated, in the transverse direction TD, a distance equal to the width of the upper film bands 1a.
  • the at least one laser telemeter 20 includes at least one upper laser telemeter 20a, directed towards the at least one upper rewinder shaft 11a and configured to detect any edge misalignment of the side edges E of the upper film bands 1a wound in the upper rolls, and at least one lower laser telemeter 20b, directed towards the at least one lower rewinder shaft 11b to detect any edge misalignment of the side edges E of the lower film bands 1b wound in the lower rolls.
  • the at least one upper laser telemeter 20a is responsible to detect edge misalignments affecting the at least one upper film band 1a
  • the at least one lower laser telemeter 20b is responsible to detect edge misalignments affecting the at least one lower film band 1b.
  • the upper laser telemeter 20a can include two upper laser telemeters 20a separated, in the transverse direction TD, a distance and emitting parallel laser beams
  • the lower laser telemeter 20b can include two lower laser telemeters 20b separated, in the transverse direction TD, a distance and emitting parallel laser beams.
  • the at least one laser telemeter 20 or a mirror affecting the laser beam emitted by the at least one laser telemeter 20 is pivotally mounted around an axis parallel to the at least one rewinder shaft 11a, 11b and is automatically actuated to alternatively direct the laser beam towards the at least one upper rewinder shaft 11a and towards the at least one lower rewinder shaft 11b.
  • Said at least one laser telemeter 20 can also be two laser telemeters 20 emitting parallel laser beams.
  • the carriage 21 supports the at least one upper laser telemeter 20a and the at least one lower laser telemeter 20b.
  • the carriage 21 includes an upper carriage 21a supporting the at least one upper laser telemeter 20a and a lower carriage 21b supporting the at least one lower laser telemeter 20b, said upper carriage 21a and lower carriage 21b being independently actuated allowing an independent detection of side misalignments of the upper film bands 1a and of the lower film bands 1b.
  • the at least one rewinder shaft 11a, 11b can be movable between a roll winding position, where at least a part of the film band 1 is bound around the core, and a roll extraction position where a finished roll is detached from the film band 1 conveyed through the conveyance path 3 and is extracted from the rewinding shaft, for example through a free end of said shaft.
  • the at least one laser telemeter 20 can be configured to emit the laser beam preferably towards the at least one rewinder shaft 11a, 11b when placed in the roll winding position, permitting the detection being performed simultaneously with the winding, increasing the productivity, but alternatively said laser beam can be emitted towards the at least one rewinding shaft when placed in the roll extraction position.
  • the at least one rewinder shaft 11a, 11b can also include a first rewinder shaft 11a, 11b and a second rewinder shaft 11a', 11b', parallel to each other and with interchangeable positions between the roll winding position and the roll extraction position.
  • the machine When the machine includes at least one upper rewinder shaft 11a, it can be movable between an upper roll winding position, where a part of the upper film band 1a is bound around the core, and an upper roll extraction position where a finished upper roll is detached from the upper film band 1a conveyed through the upper conveyance path 3a and is extracted from the at least one upper rewinding shaft 11a.
  • first and second rewinder shafts 11a, 11a', the first and second upper rewinder shafts 11a, 11a', or the first and second lower rewinder shafts 11b, 11b' can be supported on cantilever on a rotating mechanism with a rotation center placed between both rewinder shafts, permitting the exchange of their positions by rotating around said rotation center.
  • the rolls recently positioned in the extraction position are detached from the respective upper or lower film band 3a, 3b, connecting said upper or lower film band 3a, 3b to respective new empty cores supported in the rewinder shaft recently positioned in the winding position, allowing for a seamless winding, and permitting the extraction of the recently formed rolls from the rewinding shaft placed in the extraction position while new rolls are formed.
  • the at least one laser telemeter 20 can be configured to emit the laser beam towards the at least one upper rewinder shaft 11a when placed in the upper roll winding position or when placed in the upper roll extraction position.
  • the at least one lower rewinder shaft 11b can be movable between a lower roll winding position, where a part of the lower film band 1b is bound around the core, and a lower roll extraction position where a finished lower roll is detached from the lower film band 1b conveyed through the lower conveyance path 3b and is extracted from the at least one lower rewinding shaft,
  • the at least one laser telemeter 20 is configured to emit the laser beam towards the at least one lower rewinder shaft 11b when placed in the lower roll winding position or when placed in the lower roll extraction position.
  • the at least one upper rewinder shaft 11a can include a first upper rewinder shaft 11a and a second upper rewinder shaft 11 a', parallel to each other and with interchangeable positions between the upper roll winding position and the upper roll extraction position and the at least one lower rewinder shaft 11b includes a first lower rewinder shaft 11b and a second lower rewinder shaft 11b', parallel to each other and with interchangeable positions between the lower roll winding position and the lower roll extraction position.
  • the at least one laser telemeter 20 is connected to a control device configured to monitor operational parameters of the machine and configured to operate adjustment devices included in the machine to modify said operational parameters in response to measurements obtained from said laser telemeter 20.
  • the operational parameters can include the material constitutive of the film band, the conveyance velocity, or parameters indicative thereof, the film band 1 tension or parameters indicative thereof, torque of the at least one rewinder shaft 11a, 11b and/or of feeder shafts, film band compression in a nip between two feeder shafts or parameters indicative thereof, among others, and the adjustment devices can include several driving motors of the rewinding shafts and/or the feeder shafts, adjustment motors driving a movement of a feeder shaft against another feeder shaft to regulate the compression force in the nip there between.
  • the predefined edge positions of the at least one film band 1 are defined by multiple cutters, integrated in a slitter station, interfering with the conveyance path 3 for cutting a film material, wider than the film band 1 and transported through said conveyance path 3, in one or several film bands 1.
  • This type of machine is known as a slitter machine.
  • the slitter station can be integrated in the film feeder, and the film material can be introduced in the film feeder from a feeding roll which is unwound to introduce the film in the conveyance path 3.
  • the present invention is also directed to a film rewinder operational method of a film rewinder machine.
  • a film rewinder operational method of a film rewinder machine First, at least one tensioned film band 1 of a laminar flexible material is conveyed in a conveyance direction CD along a conveyance path 3 maintaining two opposed side edges E of said film band 1 in predefined edge positions in a transverse direction TD perpendicular to the conveyance direction CD. Then, each of said at least one film band 1 is wound around a core forming a roll.
  • the method further includes analyze at least one side edge E of the at least one film band 1 using at least one laser telemeter 20 to detect any edge misalignment in the transversal direction equal to or bigger than a given offset distance, in regard to the predefined edge position, of the side edges E of the film band 1 wound in the roll.
  • operational parameters of the machine during the winding of said at least one film band 1 are associated with information provided by the at least one laser telemeter 20 and used said information and associated operational parameters to at least automatically adjust the operational parameters of later winding operations of said machine to reduce or avoid said edge misalignments.
  • the proposed method which can be applied to a machine such the machine described above, includes a first step for detecting an edge misalignment using at least one laser telemeter 20.
  • the information obtained by said laser telemeter 20 is associated with the operational parameters existing in the machine during the winding of the film band 1.
  • the operational parameters can be modified to avoid or reduce the presence of edge misalignments in future winding operations.
  • the method can further comprise automatically comparing the operational parameters of the machine when edge misalignments are detected and when edge misalignments are not detected to determine the automatic adjustments required to reduce or avoid said edge misalignments.
  • the at least one laser telemeter 20 will be preferably used to detect edge misalignments on the roll while the winding of the film band 1 in the roll is performed.
  • Multiple side edges E of the at least one film band 1 can be successively analyzed by the same laser telemeter 20, moving the laser telemeter 20 from one measurement position to another measurement position.
  • the edge misalignments can be measured directing the laser beam towards the at least one winding shaft positioned in the roll winding position.
  • the at laser beams shall be reoriented towards the at least one winding shaft positioned in the roll extraction position to allow its use as a visual reference.
  • Said reorientation of the laser beam can be achieved by tilting the laser telemeter 20 or by tilting a mirror affecting the laser beam.
  • the detection of the edge misalignments and the visual reference can be both performed on the at least one winding shaft while positioned in the roll extraction position.

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  • Replacement Of Web Rolls (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Claims (15)

  1. Filmaufwickler-Maschine, die einen Fehlausrichtungsdetektor umfasst und ferner Folgendes umfasst:
    eine Filmzuführung, die so ausgebildet ist, dass sie mindestens ein gespanntes Filmband (1) aus einem laminaren flexiblen Material bereitstellt, das in einer Förderrichtung (CD) entlang eines Förderweges (3) gefördert wird, und dass sie zwei gegenüberliegende Seitenkanten (E) des Filmbandes (1) in vordefinierten Kantenpositionen in einer Querrichtung (TD) senkrecht zur Förderrichtung (CD) hält, wobei die Filmzuführung eine automatische Filmpannvorrichtung einschließt, um das Filmband (1) während seiner Förderung mit einer konstanten Spannung zu halten;
    eine Aufwickelstation (10), die mit dem Förderweg (3) verbunden ist, um das mindestens eine gespannte Filmband (1) aufzunehmen, wobei die Aufwickelstation (10) mindestens eine Aufwickelwelle (11a, 11b) mit einer zur Querrichtung (TD) parallelen Achse einschließt und so ausgebildet ist, dass sie mindestens einen Kern trägt und dreht, um das mindestens eine Filmband (1) unter Bildung einer Rolle (4) um den Kern zu wickeln;
    dadurch gekennzeichnet, dass der Fehlausrichtungsdetektor Folgendes umfasst:
    mindestens einen Laser-Entfernungsmesser (20), der so ausgebildet ist, dass er in einer Messposition platziert wird und einen Laserstrahl, der auf die mindestens eine Aufwickelwelle (11a, 11b) gerichtet ist, in eine Ebene projiziert, die senkrecht zu der mindestens einen Aufwickelwelle ist, wenn er sich in der Messposition befindet, wobei die Ebene in einem Versatzabstand in der Querrichtung liegt, über mindestens eine der vordefinierten Kantenpositionen des mindestens einen um den Kern gewickelten Filmbandes, wobei der Laser-Entfernungsmesser (20) so ausgebildet ist, dass es jede Kantenfehlausrichtung in der Querrichtung (TD) erkennt, die gleich oder größer ist als der Versatzabstand in Bezug auf die vordefinierte Kantenposition der Seitenkanten (E) des in die Rolle gewickelten Filmbandes.
  2. Filmaufwickler-Maschine nach Anspruch 1, wobei der mindestens eine Laser-Entfernungsmesser so ausgebildet ist, dass er den Laserstrahl gegen die mindestens eine Aufwickelwelle emittiert.
  3. Filmaufwickler-Maschine nach Anspruch 1 oder 2, wobei es sich bei dem mindestens einen Laser-Entfernungsmesser um zwei Laser-Entfernungsmesser handelt, die so ausgebildet sind, dass sie parallele Laserstrahlen projizieren, die in der Querrichtung in einem Abstand voneinander getrennt sind, der dem Abstand zwischen den beiden gegenüberliegenden Kanten des Filmbandes in der Querrichtung plus dem zweifachen Versatzabstand entspricht, um gleichzeitig an beiden Seitenkanten des Filmbandes eine Kantenfehlausrichtung zu erkennen.
  4. Filmaufwickler-Maschine nach Anspruch 1, 2 oder 3, wobei die Bandfilmzuführung mehrere Filmbänder durch den Förderweg fördert; wobei
    jedes Filmband um einen unabhängigen Kern gewickelt wird, der auf der mindestens einen Aufwickelwelle gelagert ist, die eine Rolle definiert; und wobei
    die Maschine ferner einen Schlitten (21) umfasst, der das mindestens eine Laser-Entfernungsmesser trägt, gleitend an einer Querführung angebracht ist und automatisch betätigt wird, um entlang der Querführung in der Querrichtung bewegt zu werden und angehalten zu werden, indem das mindestens eine Laser-Entfernungsmesser über mindestens einer der Messpositionen platziert wird, um Fehlausrichtungen verschiedener Seitenkanten der in die Rollen gewickelten Filmbänder zu messen.
  5. Filmaufwickler-Maschine nach einem der vorhergehenden Ansprüche, wobei die mindestens eine Aufwickelwelle (11a, 11b) mindestens eine obere Aufwickelwelle (11a) und mindestens eine untere Aufwickelwelle (11b) parallel zueinander einschließt, wobei sich der Förderweg (3) in einen oberen Förderweg (3a), der mindestens ein oberes Folienband (1a) fördert, das mit der mindestens einen oberen Aufwickelwelle (11a) verbunden ist, und einen unteren Förderweg (3b) aufteilt, der mindestens ein unteres Folienband (1b) fördert, das mit der mindestens einen unteren Aufwickelwelle (11b) verbunden ist; wobei
    die mindestens eine obere Aufwickelwelle (11a) einen Kern zum Wickeln jedes oberen Filmbandes (1a) trägt, das eine obere Rolle definiert, und die mindestens eine untere Aufwickelwelle (11b) einen Kern zum Wickeln jedes unteren Filmbandes (1b) trägt, das eine untere Rolle definiert, wobei das mindestens eine obere Filmband (1a) und das mindestens eine untere Filmband (1b) alternierende Filmbänder sind; und wobei
    das mindestens eine Laser-Entfernungsmesser (20) mindestens einen oberen Laser-Entfernungsmesser (20a), der auf die mindestens eine obere Aufwickelwelle (11a) gerichtet ist und so ausgebildet ist, dass es jede Kantenfehlausrichtung der Seitenkanten (E) der oberen Filmbänder (1a), die in die oberen Rollen gewickelt sind, erkennt, und mindestens einen unteren Laser-Entfernungsmesser (20b) einschließt, der auf die mindestens eine untere Aufwickelwelle (11b) gerichtet ist, um jede Kantenfehlausrichtung der Seitenkanten (E) der unteren Filmbänder (1b), die auf die unteren Rollen gewickelt sind, zu erkennen, oder
    der mindestens eine Laser-Entfernungsmesser (20) oder ein Spiegel, der den von dem mindestens einen Laser-Entfernungsmesser (20) emittierten Laserstrahl beeinflusst, schwenkbar um eine Achse parallel zu der mindestens einen Aufwickelwelle (11a, 11b) angebracht ist und automatisch betätigt wird, um den Laserstrahl abwechselnd auf die mindestens eine obere Aufwickelwelle (11a) und auf die mindestens eine untere Aufwickelwelle (11b) zu richten.
  6. Filmaufwickler-Maschine nach Anspruch 5, in Abhängigkeit von Anspruch 4, wobei der Schlitten den mindestens einen oberen Laser-Entfernungsmesser und den mindestens einen unteren Laser-Entfernungsmesser trägt; oder
    der Schlitten (21) einen oberen Schlitten (21a), der mindestens einen oberen Laser-Entfernungsmesser (20a) trägt, und einen unteren Schlitten (21b), der mindestens einen unteren Laser-Entfernungsmesser (20b) trägt, einschließt, wobei der obere Schlitten (21a) und der untere Schlitten (21b) unabhängig betätigt werden.
  7. Filmaufwickler-Maschine nach einem der vorhergehenden Ansprüche, wobei die mindestens eine Aufwickelwelle (11a, 11b) zwischen einer Rollenwickelposition, in der ein Teil des Filmbandes um den Kern gebunden wird, und einer Rollenentnahmeposition, in der eine fertige Rolle von dem durch den Förderweg (3) geförderten Filmband (1) gelöst und von der Aufwickelwelle (11a, 11b) entnommen wird, und wobei der mindestens eine Laser-Entfernungsmesser (20) ausgebildet ist, um den Laserstrahl in Richtung der mindestens einen Aufwickelwelle (11a, 11b) zu emittieren, wenn er in der Rollenwickelposition platziert ist oder wenn er in der Rollenentnahmeposition platziert ist; oder wobei
    die mindestens eine obere Aufwickelwelle (11a) zwischen einer oberen Rollenwickelposition, in der ein Teil des oberen Filmbandes um den Kern gebunden ist, und einer oberen Rollenentnahmeposition, in der eine fertige obere Rolle von dem oberen Filmband (1a), das durch den oberen Förderweg (3a) gefördert wird, gelöst und von der mindestens einen oberen Aufwickelwelle (11a) entnommen wird, bewegbar ist, und wobei der mindestens eine Laser-Entfernungsmesser (20) so ausgebildet ist, dass er den Laserstrahl in Richtung der mindestens einen oberen Aufwickelwelle (11a) emittiert, wenn er in der oberen Rollenwickelposition platziert ist oder wenn er in der oberen Rollenentnahmeposition platziert ist, und die mindestens eine untere Aufwickelwelle (11b) zwischen einer unteren Rollenwickelposition, in der ein Teil des unteren Filmbandes (1b) um den Kern gebunden ist, und einer unteren Rollenentnahmeposition, in der eine fertige untere Rolle von dem unteren Filmband (1b), das durch den unteren Förderweg (3b) gefördert wird, gelöst und von der mindestens einen unteren Aufwickelwelle (11b) entnommen wird, bewegbar ist und wobei der mindestens eine Laser-Entfernungsmesser (20) so ausgebildet ist, dass er den Laserstrahl in Richtung der mindestens einen unteren Aufwickelwelle (11b) emittiert, wenn er in der unteren Rollenwickelposition platziert ist oder wenn er in der unteren Rollenentnahmeposition platziert ist.
  8. Filmaufwickler-Maschine nach Anspruch 7, wobei die mindestens eine Aufwickelwelle eine erste Aufwickelwelle (11a, 11b) und eine zweite Aufwickelwelle (11a', 11b') einschließt, die parallel zueinander und mit austauschbaren Positionen zwischen der Rollenwickelposition und der Rollenentnahmeposition angeordnet sind; oder wobei
    die mindestens eine obere Aufwickelwelle (11a) eine erste obere Aufwickelwelle (11a) und eine zweite obere Aufwickelwelle (11 a') einschließt, die parallel zueinander und mit austauschbaren Positionen zwischen der oberen Rollenwickelposition und der oberen Rollenentnahmeposition angeordnet sind, und die mindestens eine untere Aufwickelwelle (11b) eine erste untere Aufwickelwelle (11b) und eine zweite untere Aufwickelwelle (11 b') einschließt, die parallel zueinander und mit austauschbaren Positionen zwischen der unteren Rollenwickelposition und der unteren Rollenentnahmeposition angeordnet sind.
  9. Filmaufwickler-Maschine nach einem der vorhergehenden Ansprüche, wobei der mindestens eine Laser-Entfernungsmesser mit einer Steuervorrichtung verbunden ist, die so ausgebildet ist, dass sie Betriebsparameter der Maschine überwacht, und so ausgebildet ist, dass sie in der Maschine enthaltene Einstellvorrichtungen betreibt, um die Betriebsparameter als Antwort auf von dem Laser-Entfernungsmesser erhaltene Messungen zu modifizieren.
  10. Filmaufwickler-Maschine nach einem der vorhergehenden Ansprüche, wobei die vordefinierten Kantenpositionen des mindestens einen Filmbandes durch mehrere in eine Schneidestation integrierte Messer definiert sind, die in den Förderweg eingreifen, um ein Filmmaterial, das breiter als das Filmband ist und durch den Förderweg transportiert wird, in ein oder mehrere Filmbänder zu schneiden.
  11. Fehlausrichtung-Erkennungsverfahren für eine Filmaufwickler-Maschine, wobei das Verfahren Folgendes umfasst:
    Fördern mindestens eines gespannten Filmbandes (1) aus einem laminaren flexiblen Material in einer Förderrichtung (CD) entlang eines Förderweges (CP), wobei zwei gegenüberliegende Seitenkanten (E) des Filmbandes (1) in vordefinierten Kantenpositionen in einer Querrichtung (TD) senkrecht zur Förderrichtung (CD) gehalten werden;
    Wickeln jedes des mindestens einen Filmbandes (1) um einen Kern, wobei eine Rolle gebildet wird;
    dadurch gekennzeichnet, dass das Verfahren ferner Folgendes umfasst:
    Analysieren mindestens einer Seitenkante (E) des mindestens einen Filmbandes (1) unter Verwendung mindestens eines Laser-Entfernungsmessers (20), um jede Kantenfehlausrichtung in der Querrichtung (TD) zu erkennen, die gleich oder größer ist als ein gegebener Versatzabstand in Bezug auf die vordefinierte Kantenposition der Seitenkanten (E) des in die Rolle gewickelten Filmbandes (1); und
    Verknüpfen von Betriebsparametern der Maschine während des Wickelns des mindestens einen Filmbandes (1) mit Informationen, die von dem mindestens einen Laser-Entfernungsmesser (20) bereitgestellt werden, und Anwenden der Informationen und der verknüpften Betriebsparameter, um die Betriebsparameter späterer Wickelvorgänge der Maschine mindestens automatisch anzupassen, um die Kantenfehlausrichtungen zu reduzieren oder zu vermeiden.
  12. Fehlausrichtung-Erkennungsverfahren nach Anspruch 11, wobei die Analyse der mindestens einen Seitenkante (E) durch Projizieren mindestens eines Laserstrahls auf die mindestens eine Aufwickelwelle (11a, 11b) in einer Ebene senkrecht zu der mindestens einen Aufwickelwelle durchgeführt wird, wobei sich diese Ebene in einem Versatzabstand in Querrichtung (TD) über der vordefinierten Kantenposition befindet, und durch Messen der Flugzeit des Laserstrahls.
  13. Fehlausrichtung-Erkennungsverfahren nach Anspruch 11 oder 12, wobei das Verfahren ferner den automatischen Vergleich der Betriebsparameter der Maschine umfasst, wenn Kantenfehlausrichtungen erkannt werden und wenn keine Kantenfehlausrichtungen erkannt werden, um die erforderlichen automatischen Anpassungen zu ermitteln, um die Kantenfehlausrichtungen zu reduzieren oder zu vermeiden.
  14. Fehlausrichtung-Erkennungsverfahren nach Anspruch 11, 12 oder 13, wobei der mindestens eine Laser-Entfernungsmesser (20) angewendet wird, um Kantenfehlausrichtungen in der Rolle zu erkennen, während die Wicklung des Filmbandes (1) in die Rolle durchgeführt wird.
  15. Fehlausrichtung-Erkennungsverfahren nach Anspruch 11, 12, 13 oder 14, wobei mehrere Seitenkanten des mindestens einen Filmbandes nacheinander von demselben Laser-Entfernungsmesser (20) analysiert werden.
EP21382401.4A 2021-05-04 2021-05-04 Filmaufwickler-maschine mit einem fehlerausrichtungsdetektor und ein fehlausrichtungs-erkennungsverfahren in einer filmaufwickler-maschine Active EP4086211B1 (de)

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ES21382401T ES2965263T3 (es) 2021-05-04 2021-05-04 Máquina de rebobinado de película que comprende un detector de desalineamiento y procedimiento de detección de desalineamiento en una máquina de rebobinado de película
CA3157171A CA3157171A1 (en) 2021-05-04 2022-05-02 Misalignment detector and misalignment detection method in a film rewinder machine

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US5881965A (en) * 1997-07-01 1999-03-16 Rovema Verpackungsmaschinen Gmbh Changing device in a packaging machine for a storage roller having thereon a foil strip
US6595460B1 (en) * 2000-08-22 2003-07-22 Innovative Solutions, Inc. Web material alignment apparatus and method
DE10321600B4 (de) * 2003-05-13 2005-05-04 Windmöller & Hölscher Kg Wickelvorrichtung mit einer Strahlungsquelle zur Positionierung der Wickelhülsen
FR2877655B1 (fr) * 2004-11-10 2007-03-30 Monomatic Sa Sa Procede et dispositif de positionnement de bandes et de bobines en vue du raccordement sur une machine a derouler
US20070102556A1 (en) * 2005-11-10 2007-05-10 Wysokowski John P Apparatus and method for measuring roll sidewall quality
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