EP3919422B1 - Système d'enroulement de feuille et composite d'une installation d'étirage de feuille et d'un tel système d'enroulement de feuille - Google Patents

Système d'enroulement de feuille et composite d'une installation d'étirage de feuille et d'un tel système d'enroulement de feuille Download PDF

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Publication number
EP3919422B1
EP3919422B1 EP21175099.7A EP21175099A EP3919422B1 EP 3919422 B1 EP3919422 B1 EP 3919422B1 EP 21175099 A EP21175099 A EP 21175099A EP 3919422 B1 EP3919422 B1 EP 3919422B1
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EP
European Patent Office
Prior art keywords
film
roller
film web
measuring roller
measuring
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
EP21175099.7A
Other languages
German (de)
English (en)
Other versions
EP3919422A1 (fr
EP3919422C0 (fr
Inventor
Helmut Gumpinger
Xaver Schwarz
Jens Adler
Anthimos Giapoulis
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.)
Brueckner Maschinenbau GmbH and Co KG
Original Assignee
Brueckner Maschinenbau GmbH and Co KG
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Publication of EP3919422A1 publication Critical patent/EP3919422A1/fr
Application granted granted Critical
Publication of EP3919422C0 publication Critical patent/EP3919422C0/fr
Publication of EP3919422B1 publication Critical patent/EP3919422B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/26—Registering, tensioning, smoothing or guiding webs longitudinally by transverse stationary or adjustable bars or rollers
    • 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
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/044—Sensing web tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/26—Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/16—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web by friction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • 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
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2207—Changing the web roll in winding mechanisms or in connection with winding operations the web roll being driven by a winding mechanism of the centre or core drive type
    • B65H19/2215—Turret-type with two roll supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
    • 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
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/443—Moving, forwarding, guiding material by acting on surface of handled material
    • B65H2301/4432—Moving, forwarding, guiding material by acting on surface of handled material by means having an operating surface contacting only one face of the material, e.g. roller
    • B65H2301/44324—Rollers
    • 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
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/513—Modifying electric properties
    • B65H2301/5133—Removing electrostatic charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/15—Roller assembly, particular roller arrangement
    • B65H2404/152—Arrangement of roller on a movable frame
    • B65H2404/1522—Arrangement of roller on a movable frame moving linearly in feeding direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/21—Angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/23—Coordinates, e.g. three dimensional coordinates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/175—Plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/175—Plastic
    • B65H2701/1752—Polymer film

Definitions

  • the invention relates to a film winding system and a composite of a film stretching system with such a film winding system.
  • Film stretching systems are used to produce a film web from a plastic melt that has certain material properties so that it can be used for specific purposes.
  • the film stretching systems include stretching stages in the longitudinal direction and/or in the transverse direction.
  • the system speed is increasing more and more and is now more than 400 m/min. Even faster film stretching systems are to be put into operation in the future.
  • an important aspect is how the finished starting product, namely the film web, is wound up.
  • film winding systems are provided that wind up the produced film web. When winding it up, however, it is important that no wrinkles are pressed into the film web and that enough air is still wrapped up so that the individual layers can be separated from each other more easily later.
  • the film web is wound up at a winding station.
  • the film web is sent to an internally known winding station fed via a contact roller to ensure optimal alignment before winding.
  • the film web covers the contact roller over 90° or over 0°.
  • the film web runs between the contact roller and the film bale (also called wrapping bale) into the film bale.
  • the film web is deflected by 90° on the contact roller before it runs into the film bale.
  • the US 2014/299705 A1 , the JP H09 315632 A1 , the EP 1 232 982 A2 as well as the EP 1 640 300 A2 show a film winding system with a contact roller and a measuring roller, with the measuring roller guiding the film web to the contact roller.
  • an adjusting device is provided in order to change the degree of wrapping over which the film web covers the contact roller.
  • the task is therefore to create a film winding system and a composite of a film winding system and a film stretching system that ensures that the film web is reliably wound up.
  • the film winding system includes a film entry area via which a film web to be wound up can be fed to the film winding system.
  • a first winding station is also provided.
  • the first winding station is designed in a winding position to wind the film web into a bale of film.
  • a contact roller and a measuring roller are also provided.
  • the contact roller is arranged (immediately) adjacent to the first winding station (when it is in the winding position) and is designed to guide the film web to the first winding station.
  • the wording “immediately” is to be understood as meaning that the contact roller is in contact with the film bale or that only the film web that is wound onto the film bale runs between the contact roller and the film bale.
  • a space could also be formed between the contact roller and the film bale.
  • This distance space i.e. distance, is preferably smaller than 100 cm, 80 cm, 70 cm, 60 cm, 50 cm, 40 cm, 30 cm, 20 cm, 10 cm, 5 cm, 3 cm, 2 cm, 1 cm or smaller than 0.5 cm.
  • the measuring roller is arranged in front of the contact roller in the direction of movement of the film web and is designed to guide the film web to the contact roller.
  • the wording “in the direction of movement of the film web” is to be understood to mean that a certain area of the film web first runs over the measuring roller and only then over the contact roller.
  • a first adjustment device is provided and designed to move the measuring roller along a travel path relative to the contact roller, so that a degree of wrap over which the film web covers the contact roller can be changed.
  • a “degree of wrap” is a value indicating how far the film web covers the contact roller.
  • the contact roller extends over 360°. With a degree of wrap of 90°, the film web would only rest on a quarter of the lateral surface of the, in particular, cylindrical contact roller. With a degree of wrap of 180°, however, the film web would rest on half of the lateral surface of the particularly cylindrical contact roller.
  • the degree of wrapping can be changed. This is achieved by first passing the film web over a measuring roller and only passing it on from the measuring roller to the contact roller.
  • the degree of wrapping can be changed because the impact area of the film web on the contact roller can be adjusted.
  • the degree of wrapping can therefore be individually adapted to the needs of the film web.
  • the degree of wrapping can therefore be optimally adjusted to film properties, such as material thickness, material strength, material elongation or shrinkage. For each material, an optimum level of wrapping can be set to achieve the best bale of film. For small ones Due to the degree of wrap, the contact roller can only have a small influence on the film tension.
  • a film web should be wound with a shrink film with a degree of wrap of approximately 90° (less than 3° deviation), whereas film webs with a thick film or with a high strength film should be wound with a degree of wrap of approximately (less than 3° deviation) 0° should be wound up.
  • the first adjustment device is designed to move the measuring roller relative to the contact roller along the travel path during operation, i.e. during the winding of the film web, in order to change the degree of wrapping during operation. This makes it possible to react immediately to changing parameters of the film web. For example, it is possible that the film web to be produced changes very quickly, which means that different degrees of wrapping are required. Loosening screw connections and converting system components is then not necessary and would not be helpful.
  • the first adjusting device is designed in particular to move the measuring roller continuously relative to the contact roller. A process in discrete steps (for example via rest stages) would also be conceivable.
  • the first adjustment device is designed to move the measuring roller along the entire travel path or along the majority of the travel path with a first movement vector and/or a second movement vector.
  • the first includes a first guide system.
  • the movement can take place with the first movement vector via the first guidance system.
  • the first adjustment device also includes a second guidance system.
  • the movement can take place with the second movement vector via the second guidance system.
  • the first or second guide system can be, for example, a carriage system or a rail system.
  • the measuring roller itself can be attached to the first guide system or the second guide system.
  • the measuring roller it would be possible for the measuring roller to be moved via the first guide system with the first movement vector and at the same time via the second guide system with the second movement vector.
  • this is optional.
  • the measuring roller could only be moved with the first movement vector or only with the second movement vector. The movement of the measuring roller in order to change the degree of wrap always takes place relative to the contact roller.
  • the first motion vector only comprises a component in the X direction.
  • This component is not zero.
  • the other components (Y direction, Z direction) are zero.
  • the X direction runs parallel to the floor in the direction of the film entry area.
  • the Y direction runs in the longitudinal direction of the contact roller or the measuring roller.
  • the Z direction is perpendicular to the ground away from the ground.
  • the second motion vector includes components in the X direction and in the Z direction that are not zero.
  • the component in the Y direction is zero. This means that the measuring roller only moves horizontally when moving with the first movement vector. When moving with the second movement vector, the measuring roller would move obliquely.
  • the measuring roller When the measuring roller moves with the second movement vector, it can be moved further in the Z direction than in the X direction over the entire travel path. It would also be possible for the measuring roller to be moved further in the X direction than in the Z direction. In principle, the measuring roller could be the same over the entire travel path can be moved far in the Z direction as well as in the X direction (45° course).
  • the ratio between the component in the X direction and the component in the Z direction would preferably be constant over most of the travel path or over the entire travel path.
  • the second motion vector forms an angle with an °, 75°, 65°, 55°, 45°, 35°, 25° or which is smaller than 15°.
  • the travel path of the measuring roller could also be arcuate.
  • the travel path of the measuring roller comprises several arcuate segments that are connected directly to one another or to one another through linearly extending sections.
  • the first adjustment device is designed to position the measuring roller between a first position and a second position in order to thereby adjust the degree of wrap.
  • the measuring roller In the first position, the measuring roller is only spaced apart from the contact roller in the vertical direction (above or below). As a result, the film web runs between the measuring roller and the contact roller almost exclusively with a vertical component. This allows a degree of wrapping of approximately 0° to be set on the contact roller.
  • the measuring roller is only spaced from the contact roller in the horizontal direction (in the film removal direction between the film entry area and the contact roller). As a result, the film web runs between the measuring roller and the contact roller almost exclusively with a horizontal component. This allows a degree of wrap of 90° to be set on the contact roller. Positions of the measuring roller between this first and this second position result in a degree of wrap between 0° and 90°.
  • a control device is also provided.
  • the control device is designed to control the first adjustment device in such a way that it moves the measuring roller in such a way that a predetermined target value for the degree of wrap is achieved.
  • This setpoint can be loaded by the control device, for example from a data memory, or received from an input unit (for example keyboard). It would also be possible for the control device to calculate the setpoint.
  • the control device could be designed to load at least one material property of the film web, such as the film type, the material thickness, the material strength, the material elongation, the shrinkage and/or the film temperature, from a data memory or from an input unit (e.g. keyboard ) to recieve.
  • the control device could then calculate the target value for the degree of wrap from this at least one material property. Additionally or alternatively, the control device could be designed to load at least one system parameter of the film stretching system, such as the system speed and/or the film tension, from a data memory or to receive it from an input unit. Depending on this at least one system parameter, the control device could calculate the setpoint for the degree of wrap. Depending on the setpoint, the measuring roller can then be moved accordingly. Certain positions of the measuring roller can be stored in a lookup table together with certain degrees of wrap. A corresponding formula could also be stored (for example an equation) from which the control device can calculate the corresponding position of the measuring roller depending on the setpoint.
  • the control device could be designed to load at least one system parameter of the film stretching system, such as the system speed and/or the film tension, from a data memory or to receive it from an input unit.
  • the control device could calculate the setpoint for the degree of wrap.
  • the measuring roller can then be moved accordingly. Certain positions of the measuring roller can be stored in
  • a force measuring device is preferably also provided and arranged on the measuring roller.
  • the force measuring device is then designed to measure an actual value for a film tension and to transmit it to the control device.
  • the control device is in turn designed to compare the actual value for the film tension with a target value for the film tension. Depending on this comparison, the control device is designed to increase, reduce or maintain the degree of wrap. For example, this prevents thin films from tearing.
  • a deflection roller and a second adjusting device are also provided.
  • the deflection roller is arranged between the film entry area and the measuring roller.
  • the second adjusting device is designed to move the deflection roller in the vertical direction in such a way that the film web can be aligned horizontally approximately (less than 5° deviation) between the deflection roller and the measuring roller or between the deflection roller and the contact roller.
  • the deflection roller achieves the same conditions on the measuring roller, so that a force measuring device used there delivers measurement results that can be compared with each other even with different degrees of wrap.
  • a first and/or a second stabilization roller are provided and can be arranged on a first edge region of the film web.
  • the first stabilization roller can be brought into contact with an upper side of the film web and the second stabilization roller can be brought into contact with an underside of the film web.
  • the first and second stabilizing rollers are preferably only spaced apart from one another in the vertical direction and are therefore arranged directly one above the other so that they support one another.
  • a third and/or a fourth stabilization roller are provided, which are arranged like the first and second stabilization rollers. However, the third and fourth stabilization rollers can be arranged on a second edge region opposite the first edge region.
  • the first edge area could be a right edge area of the film web and the second edge area could be a left edge area of the film web.
  • An “edge area” is to be understood as meaning the area of the film web which is spaced from the respective side edge by preferably less than 50 cm, 40 cm, 30 cm, 20 cm or less than 10 cm. Instead of a stabilizing roller, one can also speak of a spreader.
  • a third adjustment device is also preferably provided to which the contact roller is attached.
  • the third adjustment device is designed to Contact roller to move in the direction of the film entry area. This ensures that a distance between the contact roller and the increasingly thick film bale is constant or that the contact roller always rests on the film bale with a defined contact pressure.
  • the third adjustment device preferably moves the contact roller around a movement vector, which preferably only has one component in the X direction. When the contact roller moves, the measuring roller is preferably moved with the same movement vector as the contact roller. This ensures that the degree of wrap can be kept constant during operation if necessary.
  • the film winding system also includes at least one unloading device.
  • This is arranged in the area of the film web and is designed to reduce an electrical charge on the film web or the film bale. Such an electrical charge can otherwise be life-threatening for the operating personnel.
  • the discharge device preferably comprises a plurality of flexible/freely movable electrically conductive metal strips (a type of tinsel strip) which can be brought into contact with the film web. These metal strips are preferably arranged distributed over the entire width of the film web or over the majority of the width of the film web.
  • a discharge conductor e.g. rod-shaped
  • This or these discharge conductors would preferably be arranged at a distance from the film web.
  • the distance should preferably be less than 30 mm, 20 mm, 10 mm or less than 5 mm. However, the distance is preferably greater than 4 mm or 5 mm.
  • An alternating electrical field is applied to this discharge conductor. This alternating electric field is a high voltage, which dissipates the static charge.
  • the composite according to the invention of the film winding system and a film stretching system allows the film winding system to be connected to an output area of the film stretching system.
  • the film stretching system includes an entrance area at which a film or plastic melt can be fed to it.
  • the film stretching system includes various zones in which the plastic film is heated and stretched into a mono- or biaxially oriented film web (for Example via a longitudinal stretching stage and/or via a transverse stretching stage or oven). The resulting film web is then fed to the film winding system.
  • Figure 1 shows a composite 100 of a film winding system 1 according to the invention and a film stretching system 110.
  • the film stretching system 110 can be designed as a longitudinal stretching system or transverse stretching system or a sequential stretching system with a longitudinal stretching stage and a transverse stretching stage or as a simultaneous stretching system.
  • the film stretching system 110 is used to produce a plastic film web 2, which is also referred to below as film web 2.
  • the film stretching system 110 is divided into different zones 110a, 110b, 110c, 110d and 110e. Of course, not all of these zones 110a, 110b, 110c, 110d and 110e actually have to be present. In the different zones 110a to 110e, the film web 2 is different Exposed to temperatures to generate or adjust certain film properties.
  • the first zone 110a is also referred to as the preheating zone.
  • the second zone 110b is referred to as the stretching zone, whereas the third zone 110c is referred to as the further heating zone.
  • the fourth zone 110d is also referred to as the neutral zone and the fifth zone 110e as the cooling zone.
  • film stretching system 110 it is possible to produce film webs with a width that is greater than 2 m, 3 m, 4 m, 5 m, 6 m, 7 m, 8 m, 9 m, 10 m, 11 m, 12 m, 13 m or larger than 15 m, but which is preferably smaller than 17 m, 16 m, 15 m, 14 m, 13 m, 12 m, 11 m, 10 m, 9 m, 8 m, 7 m, 6 m, 5 m, 4 m or less than 3 m.
  • the film stretching system 110 comprises an entrance area 111, wherein a film to be stretched can be fed to the film stretching system 110 at its entrance area 111. At the end of the film stretching system 110, i.e. at its exit area 112, the stretched film web 2 emerges.
  • the exit area 112 of the film stretching system 110 is connected to a film entry area 3 of the film winding system 1 according to the invention.
  • the Figures 2A and 2B show an exemplary embodiment which describes a film winding system 1 in general terms.
  • the film web 2 is from the film stretching system fed to the film winding system 1. This is done via the film entry area 3.
  • the film web 2 then runs in the direction of a first winding station 4, which is in the Figures 2A and 2B is in a winding position.
  • the first winding station 4 is designed to wind up the film web 2 into a film bale 5.
  • the film web 2 is fed to the first winding station 4 via a 0° wrap.
  • the film web 2 is fed to the first winding station 4 via a 90° wrap.
  • a contact roller 6 is provided.
  • the film web 2 is fed vertically to the contact roller 6 and the film web 2 rests in the space between the contact roller 6 and the first winding station 4 and is immediately wound up into the film bale 5.
  • a possible deflection of the contact roller 6 has a smaller influence on the film web 2 with a degree of wrap of 0° than with a degree of wrap of 90°.
  • the air inclusion can be kept constant despite the slightly unsteady running of the film web 2 or create uniform conditions on the film bale 5 because the film web 2 first runs onto the contact roller 6.
  • the film web is fed horizontally to the contact roller 6.
  • the film web 2 lies against the contact roller 6 over approximately a quarter of the lateral surface of the contact roller. This means that the film web is deflected by 90°.
  • a possible deflection of the contact roller 6 due to its own weight has a greater negative influence than at 0°.
  • the deflection ensures that the film web 2 hits the contact roller 6 flat on the underside. Because of the deflection, the wrapping is slightly larger at the edges of the film web 2 and in the middle of the film web 2, which can lead to the formation of wrinkles.
  • Thinner film webs 2 are more affected by fluttering, which is why the degree of wrapping should be chosen larger in order to calm the film web 2.
  • thicker film webs 2 should be guided over the contact roller 6 with a smaller degree of wrapping in order to avoid the formation of wrinkles. A corresponding dynamic adjustment of the degree of wrap is described in the following figures.
  • the first winding station 4 includes a base body 4a.
  • the base body 4a of the first winding station 4 can be set in a rotational movement. This can be done, for example, using an (electric) motor.
  • the base body 4a can be a (hollow) cylindrical piece of cardboard.
  • the base body 4a can also be made of metal.
  • a second winding station 7 is shown.
  • the second winding station 7 also includes a base body 7a. This base body 7a can also be set in a rotational movement.
  • the film web 2 can also be wound around the base body 7a of the second winding station 7.
  • the first winding station 4 has moved into the winding position.
  • the first winding station 4 In the winding position, the first winding station 4 is arranged adjacent to the contact roller 6.
  • the second winding station 7, on the other hand, is moved or pivoted into an unloading position.
  • the film bale 5 In the unloading position, the film bale 5 can be removed from the respective, in this case second, winding station 7.
  • Figure 2A It is shown by arrows that the first winding station 4 can be moved or pivoted from the winding position into the unloading position.
  • the second winding station 7 can be moved or pivoted from the unloading position (after the film bale 5 has been removed) into the winding position.
  • the movement from the winding position into the unloading position and back into the winding position is preferably circular or approximates a circular movement.
  • the movement could also include various, preferably arcuate, segments that adjoin one another or are connected to one another by straight sections.
  • a cutting device (not shown) is provided. The cutting device is designed to cut the film web 2 along its entire width when the first or second winding station 4, 7 is pivoted in the direction of the unloading position, the other winding station 7, 4 then being designed to move so far into the Winding position to be pivoted, so that the respective base body 4a, 7a immediately comes into contact with the now cut-off new beginning of the film web 2 and winds up this new beginning on the base body 4a, 7a, which is already set in rotation.
  • the cutting device preferably moves obliquely (in the X direction and Y direction) in order to make a straight cut in the film web 2 due to the movement speed of the film web 2.
  • the cutting device could also move straight (only in the Y direction), in which case the film web 2 would then be cut off at an angle.
  • Figure 3A shows how a degree of wrap of 0° is achieved.
  • a contact roller 6 and a measuring roller 8 are provided.
  • the contact roller 6 is in particular arranged directly (less than 10 cm, 8 cm, 6 cm, 4 cm, 2 cm, 1 cm) adjacent to the first winding station 4, which in this case is in the winding position.
  • the contact roller 6 preferably touches the first winding station 4. If several winding stations 4, 7 are used, this naturally applies to the winding station 4, 7 which is in the winding position.
  • the contact roller 6 is designed to guide the film web 2 to the respective, in this case to the first, winding station 4.
  • the measuring roller 8 is arranged in front of the contact roller 6 in the direction of movement of the film web 2 and serves to guide the film web 2 to the contact roller 6.
  • a first adjustment device 10 is also provided and designed to move the measuring roller 8 along a travel path relative to the contact roller 6, so that a desired degree of wrap, over which the film web 2 covers the contact roller 6, can be adjusted or changed.
  • the diameters of the contact roller 6 and the measuring roller 8 are different. They might as well be the same.
  • the film web 2 runs between the measuring roller 8 and the contact roller 6 preferably exclusively with a component in the vertical direction (perpendicular to the floor).
  • the measuring roller 8 is located in Figure 3A in a first position. To set a degree of wrap of 0°, the measuring roller 8 only needs to be in the vertical direction (Z direction). be arranged at a distance from the contact roller 6.
  • the measuring roller 8 must be arranged offset from the contact roller 6 in such a way that both the contact roller 6 and the measuring roller 8 only touch one (same) plane (YZ plane), this plane runs perpendicular to the ground.
  • the film web 2 runs through this plane accordingly.
  • a distance between the measuring roller 8 and the contact roller 6 is less than 3 m, 2.5 m, 2 m, 1.5 m or less than 1 m, particularly with a degree of wrap of 0°.
  • the contact roller 6 and the measuring roller 8 rotate in the same direction.
  • the contact roller 6 and the base body 4a, 7a of the respective winding station 4, 7 in the winding position rotate in different directions.
  • both the contact roller 6 and the measuring roller 8 could be tempered.
  • Such temperature control could be achieved using an appropriate fluid (air, liquid).
  • the distance between the measuring roller 8 and the contact roller 6 can be constant over the entire travel path of the measuring roller 8. However, the distance preferably changes. The distance can become smaller or larger over the entire travel path.
  • the first adjustment device 10 is designed to move the measuring roller 8 relative to the contact roller 6 even while the film web 2 is being wound up. This allows the degree of wrap to be changed during operation.
  • the movement of the measuring roller 8 relative to the contact roller 6 is particularly stepless. It could also be done in discrete steps.
  • the method is carried out, for example, pneumatically, electrically, hydraulically and/or mechanically.
  • the first adjustment device 10 is further designed to move the measuring roller 8 along the entire travel path or along the majority of the travel path with a first movement vector and/or with a second movement vector.
  • the first adjustment device 10 includes a first guide system 11 for this purpose, the first guide system 11 being movable with the first movement vector.
  • a second guidance system 12 is shown, wherein the second guidance system 12 is movable with the second movement vector.
  • the first and/or second guide system 11, 12 can be, for example, a carriage, rail and/or chain system.
  • the measuring roller 8 is attached to the second guide system 12, whereas the second guide system 12 is attached to the first guide system 11.
  • Both guide systems 11, 12 can preferably be controlled independently of one another. It would also be possible for the measuring roller 8 to be attached to the first guide system 11, whereby the first guide system 11 could in turn be attached to the second guide system 12. If the first guidance system 11 is attached to the second guidance system 12, then a movement of the second guidance system 12 always leads to a movement of the first guidance system 11, whereas a movement of the first guidance system 11 does not lead to a movement of the second guidance system 12. The reverse applies in the event that the second guidance system 12 is attached to the first guidance system 11.
  • the first motion vector only includes a component in the X direction, with the X direction running parallel to the ground in the direction of the film entry area 3.
  • the component in the X direction is greater than zero, whereas all other components are zero.
  • the second motion vector includes a component in the X direction and a component in the Z direction.
  • the Z-direction component runs vertically away from the ground (upward) and is perpendicular to the X-direction component.
  • a component in the Y direction is zero. The component in the Y direction would otherwise run parallel to the axis of rotation or longitudinal axis of the contact roller 6 or the measuring roller 8.
  • the measuring roller 8 can be moved obliquely via the second guide system 12.
  • the second motion vector preferably forms an angle of 45° with an XY plane.
  • the angle could also be larger than 10°, 20°, 30°, 40°, 50°, 60° or larger than 70°.
  • the angle is preferably smaller than 80°, 75°, 65°, 55°, 45°, 35°, 25° or smaller than 15°.
  • the travel path of the measuring roller 8 could also be arcuate. This would apply in particular to the second management system 12.
  • the travel path of the measuring roller 8 could also include several arcuate segments that are connected directly to one another or to one another through linearly extending sections.
  • Figure 3A It is shown that the measuring roller 8 has been moved to the first position in order to set a degree of wrap of 0°. In this position, the measuring roller 8 is only spaced from the contact roller 6 in the vertical direction. In this exemplary embodiment, the measuring roller 8 is arranged below the contact roller 6. However, it could also be arranged above the contact roller 6. This ensures that the film web 2 is moved between the measuring roller 8 and the contact roller 6 almost exclusively with a vertical component.
  • a deflection roller 15 and a second adjusting device 16 are optionally provided.
  • the second adjustment device 16 is preferably a carriage, rail and/or chain system.
  • the drive is in turn preferably pneumatic, electrical, hydraulic and/or mechanical.
  • the deflection roller 15 is arranged between the film entry area 3 and the measuring roller 8.
  • the second adjusting device 16 is designed to move the deflection roller 15 in the vertical direction (Z direction) in such a way that the film web 2 is between the deflection roller 15 and the measuring roller 8 or between the deflection roller 15 and the contact roller 6 is approximately (less than 5° deviation) aligned horizontally.
  • the deflection roller 15 could also be tempered (eg heated and/or cooled).
  • the deflection roller 15 will also be moved with a component in the Z direction.
  • the diameter of the deflection roller 15 can correspond to the diameter of the contact roller 6 or the diameter of the measuring roller 8 or deviate from these diameters.
  • the deflection roller 15 could also be adjusted in the horizontal direction (X direction).
  • the deflection roller 15 could therefore be moved with a movement vector that includes both a component in the X direction and a component in the Y direction. In the simplest case, the deflection roller 15 would be moved along a straight line, i.e.
  • the travel path of the deflection roller 15 could be arcuate.
  • the travel path of the deflection roller 15 could also include several arcuate segments that are connected directly to one another or to one another by at least one linearly extending section.
  • the travel path of the deflection roller 15 corresponds to the travel path of the measuring roller 8. More preferably, both the deflection roller 15 and the measuring roller 8 would complete the same movement sequence at the same time.
  • first and second stabilizing rollers 20, 21 are also provided and arranged on a first edge region of the film web.
  • the first stabilizing roller 20 can be brought into contact with an upper side of the film web 2.
  • the second stabilizing roller 21, on the other hand, can be brought into contact with an underside of the film web 2.
  • the first and second stabilizing rollers 20, 21 are only spaced apart from one another in the vertical direction and are arranged directly one above the other.
  • the third and fourth stabilizing rollers are preferably arranged offset only in the Y direction from the first and second stabilizing rollers 20, 21, respectively.
  • the stabilizing rollers 20, 21 are preferably arranged between the deflection roller 15 and the measuring roller 8.
  • the stabilizing rollers 20, 21 are preferably arranged closer to the measuring roller 8 or the contact roller 6 than to the deflection roller 15.
  • a third adjustment device 25 is preferably also provided.
  • the third adjustment device 25 is preferably again a carriage, rail and/or chain system.
  • the third adjustment device 25 can also be driven pneumatically, electrically, hydraulically and/or mechanically.
  • the contact roller 6 is attached to the third adjusting device 25.
  • the third adjustment device 25 is designed to move the contact roller 6 in the X direction. This ensures that the distance between the contact roller 6 and the increasingly thick film bale 5 remains constant.
  • the respective first or second winding station 4, 5, which is currently in the winding position could also be moved in the X direction via an adjusting device, so that the distance from the outermost layer of the film bale 5 to the contact roller 6 remains constant.
  • control device 30 is provided. For reasons of clarity, this is only in Figure 3A shown. It can of course also be provided in all other figures.
  • the control device 30 is designed to control the first adjustment device 10 in such a way that it moves the measuring roller 8 in such a way that a predetermined target value for the degree of wrap is achieved.
  • the second and/or third adjusting device 16, 25 could also be controlled via the control device 30.
  • the control device 30 can select a specific position for the measuring roller 8 in order to then move the measuring roller 8 to this position.
  • the relationships between the setpoint and the position of the measuring roller 8 can be saved, for example, in a look-up table.
  • the position to be set for the measuring roller 8 can also be corrected by the current position of the contact roller 6 (which can be moved along the X direction depending on the thickness of the film bale 5). Instead of a look-up table, the position of the measuring roller 8 to be set can also be calculated using a system of equations. Parameters of this system of equations are at least the setpoint for the degree of wrap and optionally the position of the contact roller 6. The control device 30 then sets the position of the measuring roller 8 by controlling the first and / or second guide system 11, 12.
  • the setpoint can be loaded from a data memory (not shown) or received in writing or from an input unit (e.g. computer, tablet computer, external control unit and/or mobile device).
  • the control device 30 would also be able to determine the target value based on at least one material property of the film web. These material properties include, for example, the film type, the material thickness, the material strength, the material elongation, the shrinkage and/or the film temperature. It would also be possible for the control device 30 to determine the setpoint from a system parameter of the film stretching system 110. These system parameters include, for example, the system speed and the film tension.
  • a force measuring device (not shown) is preferably provided, which is arranged on the measuring roller 8.
  • the force measuring device 8 is designed to measure a current value (actual value) for the film tension and to transmit it to the control device 30. Based on this actual value, the control device 30 can control the first adjustment device 10 in such a way that the degree of wrap is increased, reduced or maintained. This prevents the film web 2 from entering.
  • FIG. 3B A degree of wrap of 22.5° is now shown. This was achieved by moving the measuring roller 8 with a first movement vector (for example exclusively) along the X direction. The measuring roller 8 was moved closer towards the film entry area 3. However, it would also be possible for the measuring roller 8 to be moved with a second movement vector, which includes both a component in the X direction and a component in the Z direction.
  • a first movement vector for example exclusively
  • a second movement vector which includes both a component in the X direction and a component in the Z direction.
  • FIG 3C a degree of wrap of 45° is shown. This is achieved in that the measuring roller 8 was moved with a second movement vector along the X direction and along the Z direction. In this context, the deflection roller 15 was also moved in its vertical position by the second adjusting device 16. As a result, the film web 2 between the deflection roller 15 and the measuring roller 8 continues to be aligned horizontally.
  • the measuring roller 8 could additionally or alternatively also be moved with the first movement vector or exclusively with the first movement vector (in the X direction) in order to be able to set the degree of wrap of 45°.
  • FIG 3D a degree of wrap of 67.5° is shown. This is achieved in that the measuring roller 8 was further moved with a second movement vector along the X direction and along the Z direction. In this context, the deflection roller 15 was also moved in its vertical position by the second adjusting device 16. As a result, the film web 2 between the deflection roller 15 and the measuring roller 8 continues to be aligned horizontally. In principle, the measuring roller 8 could also be moved with the first movement vector or exclusively with the first movement vector (in the X direction).
  • the first and second stabilizing rollers 20, 21, like the third and fourth stabilizing rollers, are preferably adjustable in position (in particular vertically) via the first adjusting device 10.
  • the stabilizing rollers 20, 21 are preferably coupled to the second guide system 12. If the measuring roller 8 is adjusted with the second movement vector (X direction and Z direction), then the stabilization rollers 20, 21 are preferably also changed, at least in their vertical position.
  • FIG 3E a degree of wrap of 90° is shown. This is achieved in that the measuring roller 8 continues to move with a second movement vector along the X direction and moved along the Z direction.
  • the deflection roller 15 was also moved in its vertical position by the second adjusting device 16.
  • the film web 2 between the deflection roller 15 and the contact roller 6 continues to be aligned horizontally.
  • the measuring roller 8 could also be moved with the first movement vector or exclusively with the first movement vector (in the X direction).
  • the measuring roller 8 is out of contact with the film web 2. However, this does not have to be the case.
  • the measuring roller 8 is only spaced from the contact roller 6 in the horizontal direction. Via the control device 30, the measuring roller 8 can preferably be moved anywhere between the first position ( Figure 3A ) and the second position ( Figure 3E ).
  • the stabilizing rollers 20, 21 are preferably arranged closer to the contact roller 6 at a higher degree of wrap than at a lower degree of wrap.
  • the first, second and/or third adjusting devices 10, 16, 25 preferably also include a braking and/or locking device, which ensures that the respective adjusting device 10, 16, 25 remains permanently in position (even in the event of a power failure in the respective one Adjusting device 10, 16, 25) until the braking and / or locking device is released again.
  • the film web 2 it would also be possible for the film web 2 to run completely above the contact roller 6.
  • the measuring roller 8 and the deflection roller 15 would be arranged in mirror image.
  • FIG 4 Another exemplary embodiment of the film winding system 1 is shown.
  • At least one unloading device 40, 41, 42 is shown here.
  • This discharge device 40, 41, 42 is arranged in the area of the film web 2 and is designed to reduce an electrical charge on the film web 2 or on the film bale 5.
  • An unloading device 40 can be arranged, for example, between the deflection roller 15 and the measuring roller 8.
  • This unloading device 40 can be arranged above and/or below the film web 2.
  • an unloading device 41 can also be arranged in the area of the measuring roller 8 or between the measuring roller 8 and the contact roller 6.
  • an unloading device 42 can also be arranged directly on the film bale 5 after the contact roller 6.
  • the discharge device 40, 41, 42 can be a large number of flexible, electrically conductive metal strips (for example a type of tinsel strip) which can be brought into contact with the film web 2. These preferably extend over the entire width of the film web 2 (in the Y direction). Additionally or alternatively, the at least one discharge device 40, 41, 42 can be a discharge conductor which is arranged at a distance from the film web 2 (the at least one discharge conductor is arranged without contact to the film web 2) and via an alternating electrical field (High voltage: more than 500V, 1000V, 2000V, 3000V, 4000V, 5000V, 6000V, 7000V, 8000V, 9000V or more than 10000V). The distance between the at least one discharge conductor and the film web is adjustable and, in particular, can be changed continuously or in discrete steps (eg automatically) during operation. The distance can be adjusted, for example, depending on the film type and/or tension.
  • the diameter of the contact roller 6 is changeable.
  • a bend-adjustable contact roller can be used.
  • a cambered contact roller 6 can also be used.
  • Such a cambered contact roller 6 is, for example, from DE 10 2009 048 074 A1 known, the content of which is incorporated by reference regarding the cambered contact roller 6. This results in a more uniform film bale 5, even if the thickness distribution of the film web 2 is different or very smooth surfaces (for example with optical films) are produced that tend to telescope.
  • the contact roller 6, the measuring roller 8 and the deflection roller 15 preferably extend over the entire width of the film web 2 (and possibly beyond).
  • the stabilizing rollers 20, 21 only extend over the respective edge area of the film web 2 or a part of it.
  • control units which are arranged between the deflection roller 15 and the measuring roller 8 or between the measuring roller 8 and the contact roller 6 or between the contact roller 6 and the corresponding winding station 4, 7 in the winding position and other film properties (for Example: film thickness, film temperature, crack formation) and forward these film properties to the control device 30 so that the control device 30 corrects the degree of wrapping based on the other film properties.
  • additional control units can be, for example, optical cameras and/or IR sensors.
  • the measuring roller 8 and/or the deflection roller 15 and/or the contact roller 6 could be driven via a common drive device.
  • the synchronization could, for example, take place via appropriate gears and/or chains or belts.
  • the measuring roller 8 and/or the deflection roller 15 and/or the contact roller 6 are each driven via their own drive device.

Landscapes

  • Winding Of Webs (AREA)
  • Replacement Of Web Rolls (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Claims (13)

  1. Système d'enroulement de feuille (1) pour une installation d'étirage de feuille (110) présentant les caractéristiques suivantes :
    - une zone d'entrée de feuille (3) est prévue, une bande de feuille (2) à enrouler étant acheminée au système d'enroulement de feuille (1) par l'intermédiaire de ladite zone d'entrée de feuille (3) ;
    - un premier poste d'enroulement (4) est prévu, ledit premier poste d'enroulement (4) étant conçu, dans une position d'enroulement, pour enrouler la bande de feuille (2) en une balle de feuille (5) ;
    - un cylindre de contact (6) et un cylindre de mesure (8) sont prévus, le cylindre de contact (6) étant disposé à proximité du premier poste d'enroulement (4) dans la position d'enroulement et étant conçu pour acheminer la bande de feuille (2) vers le premier poste d'enroulement (4);
    - le cylindre de mesure (8) est disposé avant le cylindre de contact (6) dans le sens de déplacement de la bande de feuille (2) et est conçu pour guider la bande de feuille (2) vers le cylindre de contact (6) ;
    - un premier dispositif de déplacement (10) est prévu et conçu pour déplacer le cylindre de mesure (8) par rapport au cylindre de contact (6) le long d'un trajet de déplacement de telle sorte qu'un degré d'enroulement, au-delà duquel la bande de feuille (2) recouvre le cylindre de contact (6), peut être modifié,
    caractérisé en ce par
    les caractéristiques suivantes :
    - un cylindre de renvoi (15) et un deuxième dispositif de déplacement (16) sont prévus ;
    - le cylindre de renvoi (15) est disposé entre la zone d'entrée de feuille (3) et le cylindre de mesure (8) ;
    - - le deuxième dispositif de déplacement (16) est conçu pour déplacer le cylindre de renvoi (15) dans le sens vertical de telle sorte que la bande de feuille (2) se trouve entre :
    a) le cylindre de renvoi (15) et le cylindre de mesure (8) ; et/ou
    b) le cylindre de renvoi (15) et le cylindre de contact (6) peuvent être orientés à peu près horizontalement ; et/ou
    les caractéristiques suivantes :
    - des premier et second cylindres de stabilisation (20, 21) sont prévus et peuvent être disposés au niveau d'une première zone de bord de la bande de feuille (2), le premier cylindre de stabilisation (20) pouvant être mis en contact avec une face supérieure de la bande de feuille (2) et le second cylindre de stabilisation (21) avec une face inférieure de la bande de feuille (2), les premier et second cylindres de stabilisation (20, 21) étant espacés l'un de l'autre uniquement dans le sens vertical ;
    - des troisième et quatrième cylindres de stabilisation sont prévus et peuvent être disposés au niveau d'une seconde zone de bord de la bande de feuille (2) opposée à la première zone de bord, le troisième cylindre de stabilisation pouvant être mis en contact avec un côté supérieur de la bande de feuille (2) et le quatrième cylindre de stabilisation avec un côté inférieur de la bande de feuille (2), le troisième et le quatrième cylindres de stabilisation étant espacés l'un de l'autre uniquement dans le sens vertical.
  2. Système d'enroulement de feuille (1) selon la revendication 1, caractérisé par la caractéristique suivante :
    - le premier dispositif de déplacement (10) est conçu pour déplacer le cylindre de mesure (8) par rapport au cylindre de contact (6) le long du trajet de déplacement pendant l'enroulement de la bande de feuille (2), afin de modifier le degré d'enroulement lors du fonctionnement.
  3. Système d'enroulement de feuille (1) selon l'une des revendications précédentes, caractérisé par les caractéristiques suivantes :
    - le premier dispositif de déplacement (10) est conçu pour déplacer le cylindre de mesure (8) le long de tout le trajet de déplacement ou le long de la partie prépondérante du trajet de déplacement :
    a) à l'aide d'un premier vecteur de déplacement ; et/ou
    b) à l'aide d'un second vecteur de déplacement ;
    - le premier dispositif de déplacement (10) comprend :
    a) un premier système de guidage (11), le premier système de guidage (11) étant pouvant être déplacé avec le premier vecteur de déplacement ; et/ou
    b) un second système de guidage (12), le second système de guidage (12) pouvant être déplacé avec le second vecteur de déplacement.
  4. Système d'enroulement de feuille (1) selon la revendication 3, caractérisé par la caractéristique suivante :
    - le cylindre de mesure (8) est :
    a) fixé au premier système de guidage (11) ; ou
    b) fixé au second système de guidage (12) ;
    - le premier système de guidage (11) est fixé sur le second système de guidage (12) ;
    ou
    le second système de guidage (12) est fixé sur le premier système de guidage (11).
  5. Système d'enroulement de feuille (1) selon l'une des revendications 4 à 7, caractérisé par les caractéristiques suivantes :
    - le premier dispositif de déplacement (10) est conçu pour déplacer le cylindre de mesure (8) le long de tout le trajet de déplacement ou le long de la partie prépondérante du trajet de déplacement :
    a) à l'aide d'un premier vecteur de déplacement ; et/ou
    b) à l'aide d'un second vecteur de déplacement ;
    - le premier vecteur de déplacement comprend uniquement une composante dans le sens X, le sens X étant parallèle au sol en direction de la zone d'entrée de feuille (3) ; et/ou
    - le second vecteur de déplacement comprend une composante dans le sens X et une composante dans le sens Z, le sens X s'étendant parallèlement au sol en direction de la zone d'entrée de feuille (3) et le sens Z s'étendant perpendiculairement en s'éloignant du sol et étant perpendiculaire au sens X.
  6. Système d'enroulement de feuille (1) selon la revendication 5, caractérisé par les caractéristiques suivantes :
    - le cylindre de mesure (8) peut être déplacé plus loin dans le sens Z que dans le sens X sur tout le trajet de déplacement ; ou
    - le cylindre de mesure (8) est plus mobile dans le sens X que dans le sens Z sur tout le trajet de déplacement ; ou
    - le cylindre de mesure (8) peut se déplacer sur tout le trajet dans le sens Z et dans le sens X sur la même distance.
  7. Système d'enroulement de feuille (1) selon l'une des revendications précédentes, caractérisé par la caractéristique suivante :
    - le trajet de déplacement du cylindre de mesure (8) est en forme d'arc.
  8. Système d'enroulement de feuille (1) selon l'une des revendications précédentes, caractérisé par les caractéristiques suivantes :
    - le premier dispositif de déplacement (10) est conçu pour positionner le cylindre de mesure (8) entre une première position et une seconde position afin de régler le degré d'enroulement :
    a) le cylindre de mesure (8), dans la première position, étant espacé du cylindre de contact (6) uniquement dans le sens vertical, de sorte que la bande de feuille (2) peut être déplacée entre le cylindre de mesure (8) et le cylindre de contact (6) presque exclusivement avec une composante verticale, ce qui permet de régler un degré d'enroulement d'environ 0 ° au niveau du cylindre de contact (6) ; et/ou
    b) le cylindre de mesure (8), dans la seconde position, étant espacé du cylindre de contact (6) uniquement dans le sens horizontal, de sorte que la bande de feuille (2) peut être déplacée entre le cylindre de mesure (8) et le cylindre de contact (6) presque exclusivement avec une composante horizontale, ce qui permet de régler un degré d'enroulement d'environ 90° au niveau du cylindre de contact (6).
  9. Système d'enroulement de feuille (1) selon l'une des revendications précédentes, caractérisé par les caractéristiques suivantes :
    - un dispositif de commande (30) est prévu ;
    - le dispositif de commande (30) est conçu pour commander le premier dispositif de déplacement (10) de telle sorte que celui-ci déplace le cylindre de mesure (8) de telle sorte qu'une valeur de consigne prédéfinie soit atteinte pour le degré d'enroulement.
  10. Système d'enroulement de feuille (1) selon la revendication 9, caractérisé par les caractéristiques suivantes :
    - le dispositif de commande (30) est conçu pour charger la valeur de consigne pour le degré d'enroulement à partir d'une mémoire de données et/ou pour la recevoir d'une unité d'entrée ; et/ou
    - le dispositif de commande (30) est conçu pour charger, à partir d'une mémoire de données, et/ou pour recevoir, à partir d'une unité d'entrée, au moins une propriété de matériau de la bande de feuille (2), telle que :
    a) un type de feuille ; et/ou
    b) une épaisseur de matériau ; et/ou
    c) une résistance de matériau ; et/ou
    d) un allongement de matériau ; et/ou
    e) un rétrécissement ; et/ou
    f) une température de feuille ;
    afin de calculer la valeur de consigne pour le degré d'enroulement à partir de ladite au moins une propriété de matériau ; et/ou
    - le dispositif de commande (30) est conçu pour charger, à partir d'une mémoire de données, et/ou pour recevoir, à partir d'une unité d'entrée, au moins un paramètre d'installation de l'installation d'étirage de feuille (110), tel que :
    a) une vitesse de l'installation ; et/ou
    b) un tirage de feuille ;
    afin de calculer la valeur de consigne pour le degré d'enroulement à partir dudit au moins un paramètre d'installation.
  11. Système d'enroulement de feuille (1) selon la revendication 9 ou 10, caractérisé par les caractéristiques suivantes :
    - un dispositif de mesure de force est prévu et disposé au niveau du cylindre de mesure (8) ;
    - le dispositif de mesure de force est conçu pour mesurer une valeur réelle d'un tirage de feuille et pour la transmettre au dispositif de commande (30) ;
    - le dispositif de commande (30) est conçu pour comparer la valeur réelle du tirage de feuille à une valeur de consigne du tirage de feuille et, en fonction de ce résultat de comparaison, pour augmenter, maintenir ou réduire la valeur de consigne du degré d'enroulement.
  12. Système d'enroulement de feuille (1) selon l'une des revendications précédentes, caractérisé par les caractéristiques suivantes :
    - un troisième dispositif de déplacement (25) est prévu ;
    - le cylindre de contact (6) est fixé au troisième dispositif de déplacement (25) ;
    - le troisième dispositif de déplacement (25) est conçu pour déplacer le cylindre de contact (6) en direction de la zone d'entrée de feuille (3).
  13. Composite d'une installation d'étirage de feuille (110) et du système d'enroulement de feuille (1) selon l'une des revendications précédentes, caractérisé par les caractéristiques suivantes :
    - l'installation d'étirage de feuille (110) peut être alimentée en matière plastique fondue au niveau de sa zone d'entrée (111) ;
    - l'installation d'étirage de feuille (110) comprend différentes zones (110a, 110b, 110c, 110d, 110e) dans lesquelles la matière plastique fondue est chauffée et/ou étirée pour former la bande de feuille (2) ;
    - une zone de sortie (112) de l'installation d'étirage de feuille (110) est reliée à la zone d'entrée de feuille (3) du système d'enroulement de feuille (1).
EP21175099.7A 2020-06-05 2021-05-20 Système d'enroulement de feuille et composite d'une installation d'étirage de feuille et d'un tel système d'enroulement de feuille Active EP3919422B1 (fr)

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DE102020115007.5A DE102020115007A1 (de) 2020-06-05 2020-06-05 Folienwickelsystem und Verbund aus einer Folienreckanlage und einem solchen Folienwickelsystem

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CN115231021B (zh) * 2022-07-18 2024-01-30 南通新江海动力电子有限公司 薄膜电容器用卷膜机
US11816893B1 (en) 2022-08-03 2023-11-14 Industrial Video Solutions Inc. Systems and methods for monitoring and controlling industrial processes
US11932991B2 (en) * 2022-08-03 2024-03-19 Industrial Video Solutions Inc. Systems and methods for monitoring and controlling industrial processes

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DE1216521B (de) 1961-09-01 1966-05-12 Dornier Gmbh Lindauer Vorrichtung zum biaxialen Recken von Filmen, Folien oder dergleichen Bahnen aus thermo-plastischem Kunststoff
DE2935743A1 (de) * 1979-09-05 1981-03-26 Zanders Feinpapiere AG, 51465 Bergisch Gladbach Zusatzvorrichtung an aufrolleinrichtungen und verfahren zum aufrollen von druckempfindlichen materialbahnen
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DE4033974A1 (de) 1990-10-25 1992-04-30 Ibos Qualitaetssicherung Verfahren zur herstellung von flaechen- und im querschnitt ringfoermigen extrudaten sowie vorrichtung zur durchfuehrung des verfahrens
JPH09315632A (ja) * 1996-05-29 1997-12-09 Diafoil Co Ltd フイルムの卷取り方法
EP1640300B1 (fr) 2000-08-07 2012-07-11 Windmöller & Hölscher KG Dispositif pour l'enroulement d'une bande de matériau en continu
JP2002240993A (ja) * 2001-02-14 2002-08-28 Fuji Iron Works Co Ltd タッチローラ装置
FI121503B (fi) * 2008-01-18 2010-12-15 Metso Paper Inc Menetelmä kuiturainan kiinnirullauksessa ja kiinnirullaimen upgrade-kit
DE102009048074A1 (de) 2009-10-01 2011-04-07 Brückner Maschinenbau GmbH & Co. KG Reckwalze sowie zugehöriges Längsreckwerk oder -stufe
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CN113753641A (zh) 2021-12-07
DE102020115007A1 (de) 2021-12-09
EP3919422A1 (fr) 2021-12-08
JP2021193054A (ja) 2021-12-23
MX2021006639A (es) 2021-12-06
HUE064804T2 (hu) 2024-04-28
PL3919422T3 (pl) 2024-03-18
US20210380364A1 (en) 2021-12-09
KR20210151702A (ko) 2021-12-14
EP3919422C0 (fr) 2023-10-18
US11891257B2 (en) 2024-02-06

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