WO2024079121A1 - Dispositif de déroulement d'une bande de matériau à partir d'un ou de plusieurs rouleaux de bande de matériau - Google Patents

Dispositif de déroulement d'une bande de matériau à partir d'un ou de plusieurs rouleaux de bande de matériau Download PDF

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Publication number
WO2024079121A1
WO2024079121A1 PCT/EP2023/078052 EP2023078052W WO2024079121A1 WO 2024079121 A1 WO2024079121 A1 WO 2024079121A1 EP 2023078052 W EP2023078052 W EP 2023078052W WO 2024079121 A1 WO2024079121 A1 WO 2024079121A1
Authority
WO
WIPO (PCT)
Prior art keywords
swivel
swivel arm
material web
drive
pair
Prior art date
Application number
PCT/EP2023/078052
Other languages
German (de)
English (en)
Inventor
Marius MEMERING
Andreas Staat
Thomas Hawighorst
Original Assignee
Windmöller & Hölscher Kg
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 Windmöller & Hölscher Kg filed Critical Windmöller & Hölscher Kg
Publication of WO2024079121A1 publication Critical patent/WO2024079121A1/fr

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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
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/10—Arrangements for effecting positive rotation of web roll
    • B65H16/106—Arrangements for effecting positive rotation of web roll in which power is applied to web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/12—Lifting, transporting, or inserting the web roll; Removing empty core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/413—Supporting web roll
    • B65H2301/4135—Movable supporting means
    • B65H2301/41358—Movable supporting means moving on an arc of a circle, i.e. pivoting supporting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/30—Supports; Subassemblies; Mountings thereof
    • B65H2402/31—Pivoting support means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/40—Shafts, cylinders, drums, spindles
    • B65H2404/43—Rider roll construction
    • B65H2404/433—Rider roll construction involving at least one rider roller following a spindle moved on a path, e.g. arcuate or circular path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/191—Bags, sachets and pouches or the like

Definitions

  • the invention relates to a device for unwinding a material web from one or more material web rolls.
  • another material web roll can be fed into the device.
  • the beginning of the material web must be connected to the end of the material web roll that is currently being unwound.
  • the first material web roll must be removed from the unwinding point and the other Material web roll is placed in the position of the first material web roll at the winding point. After this change of material web roll, the other material web roll forms the first material web roll, so that after an unwinding time the change described can take place again.
  • Such devices which enable a continuous unwinding of a material web, especially from several rolls of material web, take up a lot of space. In applications where several devices are required within a machine, a particularly large amount of space is therefore required.
  • the object of the present invention is therefore to propose a generic device which is compact and therefore space-saving.
  • the object is achieved by a device according to claim 1.
  • the device according to the invention for unwinding a material web from several material web rolls is
  • a machine frame is initially provided, which can be designed in particular as a frame.
  • a rectangular frame made of tubes can be the basis for further features of the invention, which are described below.
  • Features described below, i.e. functional elements of the invention, can be directly connected to the machine frame in a fixed or movable manner, or can be arranged indirectly on it via further intermediate components.
  • a first shaft which can also be referred to as a support shaft, is provided for carrying the first roll of material web.
  • This shaft can be rotatably mounted in a main bearing point for unwinding.
  • This main bearing point is arranged on or in the machine frame.
  • the main bearing point or some of its components are fixed to the machine frame, i.e. arranged immovably.
  • the main bearing point can comprise two support surfaces, which are preferably spaced apart from one another in the axial direction of the shaft, so that the shaft rests with its ends on the support surfaces. can be placed on.
  • the support surfaces can be surrounded by a pair of supports, wherein the supports of the pair of supports are also spaced apart from one another. This arrangement just described makes it possible to unwind the material web from the material web roll.
  • a drive shaft is provided for rotating the first material web roll, wherein the drive shaft can be adjusted directly or indirectly to transfer the material web roll to its outer circumference.
  • direct is meant that the drive shaft itself can be adjusted force-fittingly to the outer circumference of the material web roll.
  • the drive shaft carries at least one further element which is connected to the drive shaft in a rotationally fixed manner and transfers the drive force to the outer circumference of the material web roll.
  • Such an element can be at least one sleeve or at least one drive wheel.
  • each end of the drive shaft can be mounted in a swivel arm of a first pair of swivel arms, with the pairs of swivel arms in turn being pivotably mounted on or in the machine frame.
  • one end of the drive shaft is mounted in or on one end of each swivel arm, while the second end of each swivel arm is rotatably connected to the machine frame.
  • each of these swivel arms of the first pair of swivel arms can be pivoted by means of a drive, whereby this drive can be designed as a piston-cylinder unit.
  • this drive can be designed as a piston-cylinder unit.
  • Each of these piston-cylinder units is preferably also supported on the machine frame.
  • a secondary storage location is provided, which is arranged in or on the machine frame. With the The shaft and thus in particular the first roll of material can be removed from the main storage location at the secondary storage location. This removal is preferably carried out when the first roll of material is almost unwound, i.e. when, for example, more than 70%, in particular more than 80% and preferably 90% of the original length of the material has already been unwound.
  • the secondary storage location can be provided with a lower load-bearing capacity than the main storage location, which means that the secondary storage location can be constructed cost-effectively.
  • a new roll of material can be fed to the device by depositing it in the secondary storage location and keeping it ready. After the material has been unwound from the first roll of material, the new, second roll of material can then be fed to the main storage location, so that the unwinding process can then continue.
  • a second drive shaft is provided to drive the material web roll, which is located on the secondary bearing point, which in turn acts on the outer circumference of the material web roll stored on the secondary bearing point and transmits the driving force to it.
  • the second drive shaft can in turn apply the driving force to the material web roll directly, i.e. via direct contact or indirectly via other elements that transmit the driving force.
  • a second pair of swivel arms is provided.
  • One end of the second drive shaft is located in each swivel arm of this pair of swivel arms.
  • the swivel arms are also pivotably mounted in the machine frame.
  • the swivel arms of the second pair of swivel arms are also swiveled by actuators, which can be designed as piston-cylinder units.
  • actuators can be designed as piston-cylinder units.
  • the swivel arms of the first swivel arm pair are located further out from the perpendicular bisector of the first and/or second drive shaft than the swivel arms of the second swivel arm pair.
  • the swivel arms of the first swivel arm pair are at a greater distance from the perpendicular bisector of the first and/or second drive shaft than the swivel arms of the second swivel arm pair.
  • the center plane spanned by this perpendicular bisector can also be used as a reference plane for describing the invention. The same applies to the center plane of the machine frame, which will be explained later.
  • first and second drive shafts it is possible for the first and second drive shafts to rest against the first roll of material web at the same time, at least briefly, without collisions occurring in the area of the swivel arms. If one looks in the axial direction of the first support shaft, which supports the first roll of material web, it is thus possible to arrange both pairs of swivel arms on the right or left side of the vertical plane spanned by the axis of the support shaft, which ultimately leads to the desired compact design of the device according to the invention.
  • this arrangement makes it possible for the other side to be freely accessible in order to remove the unwound roll of material web and/or to feed in a new roll of material web, whereby the risk of damage to a transport device and/or the risk of injury to the operating personnel is reduced or even completely eliminated.
  • the radial extension of the first swivel arm pair is greater than the radial extension of the second swivel arm pair.
  • the radial extension of a swivel arm is the direct distance between a swivel bearing of the swivel arm, with which in particular the swivel arm is mounted on the machine frame, and the bearing of the drive shaft, which in this swivel arm. This direct distance is therefore greater for the swivel arms of the first swivel arm pair than for the swivel arms of the second swivel arm pair.
  • a frame formed from the first pair of swivel arms and the first drive shaft encloses the frame formed from the second pair of swivel arms and the second drive shaft, preferably in any swivel position that each pair of swivel arms can assume relative to the machine frame. This ensures that the pairs of swivel arms and the associated drive shafts do not interfere with each other in any operating situation and in particular do not collide.
  • the secondary bearing point comprises a third pair of swivel arms, the swivel arms of which are pivotably mounted in the machine frame and, as seen from the central perpendicular, are arranged further outwards than the swivel arms of the second pair of swivel arms and, in particular, are arranged further inwards than the swivel arms of the first pair of swivel arms.
  • the secondary bearing point is thus designed in a similar way to the first pair of swivel arms and/or the second pair of swivel arms.
  • the swivel arms of the secondary bearing point are also each connected to the machine frame with a first end via a swivel bearing, while the second ends are designed and configured to support the ends of the shaft that carries the roll of material web.
  • the swivel bearings of the two aforementioned pairs of swivel arms can thus be arranged very close to one another, which contributes to the compact design of the device according to the invention.
  • the swivel movement of the swivel arms of the third swivel arm pair can be caused by spindle drives.
  • a spindle drive motor can be located on the The spindle can be supported on the machine frame and a spindle nut can be arranged on the relevant swivel arm.
  • the spindle can be driven in rotation by the spindle drive motor, so that the rotation of the spindle, which is screwed into the spindle nut, enables the relevant swivel arm to be swiveled.
  • the spindle nut is in particular pivotably attached to the swivel arm, whereas the spindle drive motor is in particular pivotably arranged on the machine frame.
  • a fourth pair of swivel arms in whose swivel arms the ends of a cutting device, in particular a cutting bar, are mounted.
  • This cutting device serves to cut through the first material web when the beginning of the second material web has been attached to the first material web.
  • the swivel arms of the fourth pair of swivel arms are arranged further inward in relation to the machine frame, as seen from the mid-perpendicular of the first and/or second drive shaft, than the main bearing point and/or swivel arms of the first pair of swivel arms.
  • a force supply device is provided with which a force can be applied to the second swivel arm, the force supply device being supported on the third swivel arm. Because the force supply device is supported on both swivel arms, the second swivel arm can pivot relative to the machine frame without the swivel position of the third swivel arm having to be adjusted.
  • the second swivel arm and the third swivel arm can thus be viewed as a movement unit relative to the machine frame.
  • the force supply device can in turn be a spindle-spindle nut combination or a piston-cylinder unit. In the latter case, this can preferably be operated with compressed air.
  • the contact force is adjustable, and on the other hand, there is a tolerance for concentricity inaccuracy.
  • the force supply device is preferably pivotably mounted on the second and third swivel arms. It is even advantageous if the swivel bearings of the second swivel arm pair and the swivel bearings of the third swivel arm pair are aligned with each other. In this case, the device has a particularly compact and simple design. Axles can be provided in the machine frame on which one swivel arm of the second swivel arm pair and one swivel arm of the third swivel arm pair are supported via swivel bearings.
  • the radial extension of the swivel arms of the third swivel arm pair is smaller than the radial extension of the swivel arms of the first swivel arm pair and/or is larger than or equal to the radial extension of the swivel arms of the second swivel arm pair.
  • the radial extension is to be understood in relation to the swivel arms of the third swivel arm pair in the same way as it was described above in relation to the first and second swivel arm pairs.
  • this embodiment means that the frame formed from the first swivel arm pair and the first drive shaft also encloses the frame formed by the third swivel arm pair and the shaft carrying the material web roll. This in turn makes it possible to achieve a compact design of the device according to the invention.
  • the second drive shaft can be swiveled onto the roll of material web and pressed onto the roll of material web with a pressing force, the force vector of the pressing force running essentially in a direction that is defined by a connecting line between the second drive shaft and the shaft that carries the roll of material web in the secondary bearing point.
  • the pressing force runs exactly in the described direction in particular when the axes of the swivel bearings of the second and third swivel arm pairs are aligned with one another. The described direction of the pressing force remains the same even when decreasing diameter of the material web roll as a result of unwinding.
  • At least one swivel arm of the first and/or second swivel arm pair comprises a drive for rotating the drive shaft.
  • the drive is preferably designed as an electric motor, which applies a torque to the drive shaft.
  • One or more intermediate shafts and/or gear stages can be provided between the drive and the drive shaft.
  • the electric motor is arranged so that its rotor runs at least partially parallel to the extension of the swivel arm.
  • extension in relation to a swivel arm has already been explained above.
  • the term "at least partially parallel” also includes the fact that the axis can be swiveled in the circumferential direction of the drive shaft. Overall, this arrangement of the drive means that the electric motor requires little installation space in the axial direction of the drive shaft, with the device according to the invention being compact.
  • a rotor shaft of the drive is connected to the drive shaft by means of a deflection gear in a torque-transmitting manner.
  • a deflection gear results in a particularly space-saving design, particularly in conjunction with an at least partially parallel arrangement of the rotor shaft to the extension of the relevant swivel arm.
  • the first swivel arm of the first and/or second swivel arm pair carries a drive motor for driving the first and/or second drive shaft
  • the second swivel arm of the first and/or second swivel arm pair carries a compensation device for compensating the weight of the drive motor.
  • This aspect of the invention can also represent an independent invention. It is advantageous that the weight force acting on the relevant swivel arm due to the motor also acts - at least partially - on the second swivel arm. This creates a Different pressing forces over the axial length of the drive shaft are avoided, which could otherwise lead to uneven unwinding of the material web or even damage to the material web roll.
  • At least one swivel arm of the second swivel arm pair carries a drive for rotating the second drive shaft, wherein the swivel arm of the first swivel arm pair, which is arranged on the same side as the swivel arm of the second swivel arm pair carrying the drive, as seen from the perpendicular bisector, is arranged at a distance from the swivel arm carrying the drive that is greater than the installation depth of the drive.
  • the said swivel arm of the first swivel arm pair is so far away from the swivel arm of the second swivel arm pair, which carries the drive, that both swivel arms can be moved past each other without a collision occurring between the said swivel arm of the first swivel arm pair and the drive motor. This ensures that the first swivel arm pair and the second swivel arm pair do not collide, even if one of the swivel arms of the second swivel arm pair carries the drive.
  • a swivel arm of the first swivel arm pair in particular the swivel arm of the first swivel arm pair which, viewed from the mid-perpendicular, is arranged on the same side as the swivel arm of the second swivel arm pair which carries the drive, carries a drive.
  • the drives of both drive shafts are therefore located on one side of the device, which improves the accessibility of the drives. It is advantageous if the drive is arranged on the side of the first swivel arm facing away from the second swivel arm pair, so that both swivel arms can be arranged close to one another, which further improves the compact design of the entire device.
  • FIG. 1 Side view of a device according to the invention in
  • FIG. 2 Side view as in Figure 1 , but with secondary bearing pivoted towards the main bearing
  • FIG. 3 Side view as in Figure 2, but with the material web roll removed from the main storage location through the secondary storage location
  • FIG. 4 Side view as in Figure 3, but with the first roll of material laid down and the material web unwinding from the second roll of material web
  • FIG. 5 Top view of a device according to the invention
  • Figure 1 shows a device 100 according to the invention for unwinding a material web 101 in unwinding operation.
  • the device 100 primarily comprises a machine frame 102, which comprises a large number of components, most of which are not specified in more detail.
  • the machine frame 102 comprises a base frame 103 and a longitudinal beam 104 running in the x direction, which is supported on the base frame 103.
  • a main bearing point 105 is provided, which is arranged in particular on the machine frame 102.
  • This main bearing point 105 comprises as essential elements a vertical support 106, i.e. a support extending in the direction Y, and a support element 107 with a receptacle 108 for a shaft 109, whereby the vertical support and the support element can be designed as a unit.
  • the receptacle for the shaft is shown in Figure 1 as a simple trough, but the structure is more complex, which is not shown for better clarity.
  • the shaft 109 carries a first material web roll 110 onto which the material web 101, which is being unwound, is wound.
  • the material web 101 is drawn off via a plurality of guide elements and/or deflection rollers, of which a deflection roller 111 is shown as a representative, and is fed, for example, to a tube forming station.
  • a drive force acts on the material web roll 110 for rotational driving.
  • this drive force is transmitted to the peripheral surface of the roll 110.
  • a first drive shaft 120 can be provided, which can be driven in rotation and, for example, rests against the peripheral surface of the roll 110.
  • the first drive shaft it is also possible for the first drive shaft to carry two or more first drive disks 121, which transmit the drive force to the peripheral surface of the material web roll 110.
  • the driving force is provided by a first drive motor 180, which is explained in more detail below in connection with Figure 6.
  • the first drive shaft 120 is rotatably mounted in a first pair of swivel arms, with the swivel arm 122 of the first pair of swivel arms being visible in Figure 1.
  • the swivel arm 122 is pivotally mounted in the longitudinal beam 104 via a swivel bearing 123.
  • a first swivel drive 124 is provided for swiveling the swivel arm 122. This is supported with its first end via a first joint bearing 125 on the machine frame 10, in particular on its support 104, in an articulated manner.
  • the swivel arm 122 is connected to the swivel drive 124 in an articulated manner via a second joint bearing 126.
  • the swivel drive itself can be designed in particular as a compressed air-operated piston-cylinder unit, which is preferably double-acting, i.e. can be actively operated in two directions. With such a piston-cylinder unit, in particular the contact pressure with which the drive shaft 120 and/or the drive disks 121 can be adjusted to the material web roll 110 can be adjusted.
  • auxiliary or secondary winding station 130 is provided.
  • This secondary winding station comprises a second pair of swivel arms 131 and a third pair of swivel arms 132.
  • a shaft holder can be provided, for example a shaft lock, whereby the swivel lever 132 can initially be pivoted to below the shaft 109.
  • the shaft 109 can then be lifted off the holder 108 of the main bearing point using the shaft holder and secured against relative movement to the swivel lever 132 using a securing device.
  • the pivoting of the third pivot arm 132 is carried out by a third pivot drive 137.
  • This pivot drive is articulated to the machine frame 102, in particular to the support 104.
  • the pivot drive 137 is also articulated to the pivot arm 132.
  • the pivot drive is preferably designed as a spindle-spindle nut combination, so that precise positioning of the pivot arm 132 is possible, which is advantageous for the transfer of the shaft 109.
  • the pivot drive comprises a motor 138, which drives a spindle 139.
  • the spindle 139 is screwed into a spindle nut 140, which is articulated to the pivot arm 132, but cannot be rotated relative to it.
  • the rotation of the spindle nut thus causes a lateral movement of the spindle nut and consequently a pivoting movement of the pivot arm.
  • the arrangements of the spindle nut 140 and the motor 138 can also be interchanged.
  • a second drive shaft 135 is provided in the pivot levers of the second pivot arm pair 131, which can be driven in rotation with a drive not shown in Figure 1.
  • the second drive shaft 135 can be directly adjustable to the material web roll 110 or can carry drive disks 136 or other elements that transmit the drive force, which transfer the drive force from the drive shaft 135 to the outer circumference of the material web roll.
  • the drive of the material web roll via the second drive shaft 135 described above is necessary when the first drive shaft 120 or the first drive disks 121 are no longer in contact with the material web roll 110.
  • a second swivel drive 141 is provided for the swivel movement of the second pair of swivel arms, of which, as already described, only the swivel arm 131 is visible.
  • This swivel drive 141 which in turn is preferably designed as a compressed air-operated piston-cylinder unit, is connected at its first end in an articulated manner to the second swivel arm 131 and at its second end in an articulated manner to the third swivel arm 132.
  • the third swivel drive 137 is actuated, the swivel arm 131 and at the same time the swivel arm 132 is swiveled relative to the machine frame.
  • the second swivel arm 131 and the third swivel arm 132 remain unchanged relative to one another as long as the swivel drive 141 is not actuated. Overall, this arrangement ensures that even when the third swivel arm 132 is swiveled for the purpose of removing the material web roll from the main bearing point 107, the pressing force of the drive shaft 135 or the drive disks 136 on the material web roll can be kept constant in a simple manner.
  • the third pivot arm 132 is pivoted into a takeover position to take over the shaft 109 together with the material web roll 110 up to the main bearing point 107.
  • the second pivot drive 141 is then actuated so that the drive shaft 135 or the drive disks 136 come into driving contact with the outer surface of the material web roll 110 and can drive it.
  • the first pivot arm 122 is pivoted by means of the pivot drive 124 so that the driving contact between the material web roll 110 and the drive shaft 120 or the drive disks 121 is interrupted.
  • the pivot positions resulting from this process are shown in Figure 2. Since no further features are shown in comparison to Figure 1, the features described have not been provided with reference symbols again. These can be seen directly and clearly from Figure 1.
  • Figure 3 now shows the situation after the swivel arm 132 has been swiveled away from the main storage location 107 after taking over the shaft 109 and the material web roll 110.
  • the material web 101 continues to run off the material web roll 110.
  • Figure 4 shows that the material web 101 is now unwound from the new material web roll 150. Before this, a connection step has taken place in which the beginning of the material web wound on the new material web roll 150 is connected to the material web of the material web roll 110 and in which the old material web was then severed between the material web roll and the connection point of both material webs. This joining step, which preferably takes place at full production speed, is not shown.
  • FIG. 4 also shows that the roll of material web can be or is deposited on a removal station 160.
  • the removal station 160 also comprises two vertical elements 161, i.e. supports extending in the y direction, of which only one vertical element 160 is visible.
  • the vertical elements are supported on the machine frame 102.
  • Each vertical element carries a roller track that is preferably slightly inclined relative to the x direction, with the end of the roller track 162 that faces the third swivel arm being raised relative to the end of the roller track facing away from the third swivel arm.
  • each roller track comprises a stop element 163 with which the rolling movement of the shaft 109 can be stopped, so that the shaft then lies still and can be safely removed from the device 100.
  • the third pair of swivel arms 132 is swiveled further away from the main bearing point 107 until the pins of the shaft 109 rest on the roller tracks 162.
  • the shaft 109 is then released from the shaft holder of the third pair of swivel arms 132 so that the shaft 109 is freely movable and can roll along the roller track.
  • Figure 5 shows a top view of the device 100 in the operating state of Figure 1.
  • the radial direction spans a center plane 170, which at the same time also forms the center plane in relation to at least one of the other shafts, in particular the drive shafts 120 and 135.
  • a vertical line which lies on this center plane and runs orthogonally to the axis of rotation of one of these drive shafts is referred to as Bisperpendicular to be understood.
  • the individual components have the arrangement according to the invention. In this view, it can be seen that the essential features of a device according to the invention are present twice and are generally arranged mirror-symmetrically to the central plane 170.
  • the pivot arms 131 of the second pivot arm pair are arranged at the shortest distance from the center plane 170.
  • the pivot arms 132 of the third pivot arm pair are provided further out.
  • the pivot arms 131 can be located within the area delimited by the longitudinal beams 104 and the pivot arms 132 can be located outside the area delimited by the longitudinal beams 104.
  • a common axis 171 can be provided for both pivot arms, which runs through the respective longitudinal beam 104 and on which the pivot arms 132 and 131 are pivotally supported via bearings and thus form the pivot bearings, of which the pivot bearing 133 is shown in Figure 1.
  • the swivel arms 122 of the first swivel arm pair are located even further out than the swivel arm pair 132. These are preferably arranged further away from the center plane or mid-perpendicular than the swivel drives 137 of the swivel arms of the third swivel arm pair 132.
  • the components of the removal station 160 are arranged between the swivel arms 131 of the second swivel arm pair and the swivel arms 122 of the first swivel arm pair.
  • the individual elements of the removal station 160 are provided with the reference numerals known from Figure 1, but will not be explained again at this point.
  • the removal station 160 is arranged between the pivot arms 132 of the third pivot arm pair and the pivot arms 122 of the first pivot arm pair.
  • Figure 6 now shows the view VI-VI from Figure 5, i.e. a side view of a device according to the invention.
  • the individual elements in this figure have the same reference numerals as in the previous figures.
  • the pivot arms 122 of the first pivot arm pair have a greater extension than the pivot arms 132 of the third pivot arm pair.
  • they have a greater extension than the pivot arms 131 of the second pivot arm pair.
  • the pivot arms 132 of the third pivot arm pair have a greater extension than the pivot arms 131 of the second pivot arm pair.
  • a drive motor 180 can be seen in Figure 6, with which the drive shaft 120 can be set in a rotational movement.
  • the drive motor thus drives the material web roll 110 via the drive shaft 120 and the drive disks 121, provided that the drive disks 121 are in frictional contact with the material web roll 110.
  • the drive force of the motor 180 is preferably transmitted to the drive shaft 120 via a motor shaft 181 and an angle gear 182.
  • the drive motor 180 and the angle gear 182 are arranged on one of the swivel arms 122 of the first pair of swivel arms.
  • a counterweight 183 is provided on the swivel arm 122, which does not carry the drive motor.
  • This balance weight has in particular the same mass weight as the aforementioned drive components, which essentially comprise the drive motor, the motor shaft and the deflection gear.
  • the balancing weight can also comprise the same drive components, in which case the drive shaft 120 would be driven at both ends.
  • the swivel drives 124 act on the swivel arms 122 with different swivel forces, so that in this way the gravity that has different effects on the swivel arms can be compensated.
  • the drive shaft 135 can be driven in the same way as the drive shaft 120.
  • the drive motor 190, the motor shaft 191 and the deflection gear 192 are available, which are arranged on one of the swivel arms 131 of the second pair of swivel arms.
  • Their structure, mode of operation, advantages and modifications correspond to those previously described in connection with the drive elements 180, 181 and 182. The same applies to the counterweight 193.
  • the size of the drive components 190, 191, 192 as well as the size of the counterweight are dimensioned such that they are smaller than the free space between the adjacent pivot arms 131 and 132.
  • the free space between these pivot arms is dimensioned such that they are larger than the maximum space requirement of the largest of the drive components 180, 181, 182 seen in the z direction.

Landscapes

  • Replacement Of Web Rolls (AREA)

Abstract

L'invention se rapporte à un dispositif de déroulement d'une bande de matériau à partir d'une pluralité de rouleaux de bande de matériau, ledit dispositif comprenant : un bâti de machine ; un point d'appui principal, qui est situé sur le bâti de machine et en particulier fixé à celui-ci, destiné à supporter en rotation un premier arbre pour un premier rouleau de bande de matériau, le rouleau de bande de matériau pouvant être déroulé ; un premier arbre d'entraînement destiné à entraîner en rotation le premier rouleau de bande de matériau, le premier arbre d'entraînement pouvant être placé directement ou indirectement contre la périphérie externe du premier rouleau de bande de matériau afin de transmettre la force d'entraînement ; une première paire de bras de pivotement, les bras de pivotement étant montés pivotants dans le bâti de machine, une extrémité du premier arbre d'entraînement étant montée en rotation dans chaque bras de pivotement ; un point d'appui secondaire qui est situé sur le bâti de machine et au moyen duquel l'arbre peut être transféré à partir du point d'appui principal et/ou est fourni pour supporter un second arbre pour un second rouleau de bande de matériau ; un second arbre d'entraînement destiné à entraîner en rotation un rouleau de bande de matériau supporté sur le point d'appui secondaire, le second arbre d'entraînement pouvant être placé directement ou indirectement contre la périphérie externe du rouleau de bande de matériau supporté sur la position d'appui secondaire afin de transmettre la force d'entraînement ; une seconde paire de bras de pivotement, les bras de pivotement étant montés de façon pivotante dans le bâti de machine, une extrémité du second arbre d'entraînement étant montée en rotation dans chaque bras de pivotement, les bras de pivotement de la première paire de bras de pivotement étant positionnés davantage vers l'extérieur par rapport au bâti de machine que les bras de pivotement de la seconde paire de bras de pivotement lorsqu'ils sont vus depuis la médiatrice du premier et/ou du second arbre d'entraînement.
PCT/EP2023/078052 2022-10-11 2023-10-10 Dispositif de déroulement d'une bande de matériau à partir d'un ou de plusieurs rouleaux de bande de matériau WO2024079121A1 (fr)

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DE102022210682 2022-10-11

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PCT/EP2023/078052 WO2024079121A1 (fr) 2022-10-11 2023-10-10 Dispositif de déroulement d'une bande de matériau à partir d'un ou de plusieurs rouleaux de bande de matériau
PCT/EP2023/078119 WO2024079156A1 (fr) 2022-10-11 2023-10-11 Dispositif pour dérouler une bande de matériau à partir d'un ou de plusieurs rouleaux de bande de matériau

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040118964A1 (en) * 2002-12-20 2004-06-24 Kimberly-Clark Worldwide, Inc. Unwind system with flying-splice roll changing
EP3038962B1 (fr) * 2013-08-30 2021-04-07 PSA Technology S.a.r.l. Dispositif de dévidage automatique de matériaux en bande continue et procédé de fonctionnement d'un tel dispositif

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040118964A1 (en) * 2002-12-20 2004-06-24 Kimberly-Clark Worldwide, Inc. Unwind system with flying-splice roll changing
EP3038962B1 (fr) * 2013-08-30 2021-04-07 PSA Technology S.a.r.l. Dispositif de dévidage automatique de matériaux en bande continue et procédé de fonctionnement d'un tel dispositif

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