WO2012176552A1 - Device for detecting diameter of remaining film, conveyance device, and pasting system - Google Patents

Device for detecting diameter of remaining film, conveyance device, and pasting system Download PDF

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Publication number
WO2012176552A1
WO2012176552A1 PCT/JP2012/061646 JP2012061646W WO2012176552A1 WO 2012176552 A1 WO2012176552 A1 WO 2012176552A1 JP 2012061646 W JP2012061646 W JP 2012061646W WO 2012176552 A1 WO2012176552 A1 WO 2012176552A1
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WO
WIPO (PCT)
Prior art keywords
film
remaining diameter
remaining
bonding
rotating body
Prior art date
Application number
PCT/JP2012/061646
Other languages
French (fr)
Japanese (ja)
Inventor
達也 土岡
和範 岸▲崎▼
幸治 植田
Original Assignee
住友化学株式会社
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Application filed by 住友化学株式会社 filed Critical 住友化学株式会社
Publication of WO2012176552A1 publication Critical patent/WO2012176552A1/en

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    • 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
    • B65H26/08—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to a predetermined diameter

Definitions

  • the present invention relates to a film remaining diameter detection device, a conveyance device, and a bonding system.
  • Patent Document 1 discloses a method for detecting the remaining diameter of a film based on the supply amount of the film and the thickness of the film while controlling the winding torque of the film.
  • This invention is made
  • a film remaining diameter detection device is a film remaining diameter detection device that detects the remaining diameter of a strip-shaped first film wound around a core material.
  • a base body a rotating body rotatably connected to the base body, rotating in contact with the surface of the first film and rotating in accordance with the feeding of the first film, and fixed to the base body at a fixed position.
  • a detection unit that detects a distance from the first film to the exposed portion of the core material that is exposed.
  • the base body includes an eccentric member at a portion to which the rotating body is connected;
  • the rotating body is connected to the base;
  • the first rotation center position of the eccentric member is different from the second rotation center position of the rotating body; by rotating the eccentric member,
  • the arrangement position may be adjusted.
  • the detection unit is configured to detect the core when the remaining diameter of the first film is reduced to a predetermined value. It may be a limit switch that detects contact with the exposed portion of the material.
  • the detection unit may be a laser displacement sensor.
  • the first end of the base is rotatable; the second end of the base is The rotating body is disposed; the center of gravity of the structure including the base body, the rotating body, and the detection unit is disposed closer to the second end portion than the first end portion of the base body; May rotate around the rotation axis of the first end portion of the substrate to maintain a state in which the rotating body is in contact with the surface of the first film.
  • the conveying apparatus which concerns on the 6th aspect of this invention is a supply part which unwinds and supplies the said 1st film; Any one of the 1st aspect to the 5th aspect mentioned above which detects the remaining diameter of the said 1st film
  • the film remaining diameter detecting device may be provided.
  • the conveying apparatus which concerns on the 7th aspect of this invention, it is provided in the conveyance path
  • a length measuring device based on a measurement result by the length measuring device, when the remaining diameter of the first film reaches a predetermined value, the rotating body comes into contact with the surface of the first film.
  • a controller for controlling the rotation operation of the substrate.
  • the remaining diameter of the said 1st film becomes small to the said predetermined value in the said 6th aspect, it is more than a said 1st film to the said supply part.
  • a film splicing portion that joins the second film having a large remaining diameter may be provided.
  • the bonding system which concerns on the 9th aspect of this invention is the conveying apparatus as described in the said 6th aspect,
  • the bonding apparatus which bonds the said 1st film supplied from the said supply part to a bonding target object, May be provided.
  • the film remaining diameter detection device it is possible to provide a film remaining diameter detection device, a transport device, and a bonding system that can accurately detect the remaining diameter of the film.
  • FIG. 1 is a schematic diagram showing a film remaining diameter detection device 1 according to the first embodiment of the present invention.
  • 2A and 2B are plan views showing a main part of the film remaining diameter detection device 1 of the present embodiment.
  • FIG. 3 is a perspective view showing a main part of the film remaining diameter detection device 1 of the present embodiment.
  • the film remaining diameter detection apparatus 1 shown in FIGS. 1 to 3 includes an optical film (hereinafter simply referred to as a film) such as a polarizing film and a retardation film that is attached to a substrate such as a liquid crystal panel or an organic EL panel.
  • a film an optical film
  • a film will not be specifically limited if it is a strip
  • the remaining film diameter detecting device 1 includes a stage 3, an arm 4 rotatably connected to the stage 3, and a film (first film) rotatably connected to the arm 4.
  • the bobbin 2 is rotatably supported by the gantry 21.
  • the stage 3 includes a stage body 11, a piston / cylinder mechanism 12, a first support portion 15 that is fixed to the stage 3 body and rotatably supports the piston / cylinder mechanism 12, and is fixed to the stage 3 body and rotates the arm 4.
  • a second support portion 16 that supports the second support portion 16 in a possible manner.
  • the piston / cylinder mechanism 12 includes a piston 13 and a cylinder 14 that slidably accommodates the piston 13.
  • One end of the piston 13 (the part opposite to the part accommodated in the cylinder 14) is rotatably connected to the arm 4.
  • One end of the cylinder 14 is rotatably connected to the first support 15.
  • the piston 13 slides along the longitudinal direction of the cylinder 14 under the control of the control unit 10.
  • the arm 4 rotates around the rotation axis 16 a of the second support portion 16 of the stage 3.
  • the arm 4 stands substantially perpendicular to the second support portion 16 of the stage 3.
  • the arm 4 rotates toward the bobbin 2 around the rotation shaft 16a of the second support portion 16 of the stage 3.
  • the arm 4 includes a first arm 5 whose one end (first end) is rotatably supported by the second support portion 16 of the stage 3, and one end which is rotatable at the other end of the first arm 5.
  • a second arm 6 connected thereto.
  • the arm 4 (first arm 5) rotates around the rotation axis 16 a of the second support part 16 of the stage 3 under the control of the control part 10.
  • One end of the second arm 6 rotates around the rotation axis 5 a of the other end of the first arm 5 under the control of the control unit 10.
  • the bearing 7 is rotatably connected to the other end of the second arm 6. Specifically, as shown in FIGS. 2A and 2B, a bearing shaft 17 is fixed to the other end portion (second end portion) of the second arm 6, and the bearing 7 rotates around the bearing shaft 17. Supported as possible.
  • a urethane mold bearing can be used as the bearing 7, for example.
  • the detection unit 8 is fixed to the side closer to the first arm 5 than the bearing 7 at the other end of the second arm 6.
  • the detection unit 8 detects the distance from the fixed position to the exposed portion 2S of the bobbin 2 from the film F.
  • a limit switch is used as the detection unit 8.
  • the limit switch 8 detects contact by contacting the portion 2S exposed from the film F of the bobbin 2 when the remaining diameter Df of the film F wound around the bobbin 2 is reduced to a predetermined value.
  • the limit switch 8 is previously arranged at a position separated from the exposed portion 2S.
  • the limit switch 8 is separated from the exposed portion 2S when the remaining diameter Df of the film F wound around the bobbin 2 is sufficiently large.
  • the limit switch 8 approaches the exposed portion 2S as the remaining diameter Df of the film F decreases as the film F is fed from the supply unit 20. Then, when the remaining diameter Df of the film F is reduced to a predetermined value, the limit switch 8 comes into contact with the exposed portion 2S.
  • the calculation unit 9 calculates a rough value of the remaining diameter Df of the film F based on a measurement result of a length measuring device 105 (see FIG. 8) described later. For example, by reducing the feed amount of the film F measured by the length measuring device 105 described later from the length of the original film (for example, the original length of the film at the time of setting), the remaining diameter Df of the film F is roughly The correct value is calculated.
  • the control unit 10 controls the rotation operation of the arm 4 so that the bearing 7 contacts the surface of the film F when the remaining diameter Df of the film F calculated by the calculation unit 9 becomes a predetermined value. That is, as shown in FIG. 1, the piston 13 is located at the highest position (top dead center) until the calculated remaining diameter Df of the film F reaches a predetermined value, and the arm 4 It stands substantially perpendicular to the second support portion 16. On the other hand, when the calculated remaining diameter Df of the film F reaches a predetermined value, the piston 13 moves to the lowest position (bottom dead center), and the arm 4 rotates the rotation shaft 16a of the second support portion 16 of the stage 3. And rotate toward the bobbin 2.
  • FIG. 4A to 4C are explanatory diagrams showing the operation of the film remaining diameter detection device 1.
  • one end of the second arm 6 is rotatable.
  • One end of the second arm 6 rotates around the rotation shaft 5 a of the other end of the first arm 5 under the control of the control unit 10.
  • the second arm 6 rotates by the action of gravity.
  • the center of gravity of the structure 22 including the second arm 6, the bearing 7, and the limit switch 8 is on the other end side of the second arm 6 (closer to the other end than one end of the second arm 6).
  • the structure 22 is rotated around the rotation axis at one end of the second arm 6 (the rotation axis 5a at the other end of the first arm 5).
  • the bearing 7 contacts the surface of the film F wound around the bobbin 2, not the film F fed out from the bobbin 2.
  • the structure 22 rotates clockwise around the rotation shaft 5a as the remaining diameter Df of the film F decreases.
  • the bearing 7 rotates counterclockwise around the bearing shaft 17 as the film F is fed from the supply unit 20.
  • the limit switch 8 comes into contact with the exposed portion 2S of the bobbin 2.
  • the limit switch 8 contacts the exposed portion 2S of the bobbin 2, the remaining diameter Df of the film F can be detected.
  • the limit switch 8 functions as a sensor that notifies the time for roll replacement.
  • a signal that the limit switch 8 has come into contact with the exposed portion 2S of the bobbin 2 is transmitted to the control unit 10 via a wiring (not shown). Then, the roll with a little remaining film F is replaced with a new roll.
  • the remaining diameter Df of the film F can be obtained from the relative position between the bearing 7 and the limit switch 8.
  • the distance from the rotation center of the bobbin 2 to the outer peripheral surface of the bearing 7 is L1
  • the distance from the rotation center of the bobbin 2 to the contact portion of the limit switch 8 is L2
  • Df L1 ⁇ Represented by L2.
  • the relative position between the bearing 7 and the limit switch 8 can be changed as appropriate.
  • FIG. 5A and 5B are explanatory diagrams showing the arrangement state of the bearing 7.
  • the position of the bearing 7 can be set to a relatively high position with respect to the bobbin 2 (the state where the rotation center of the bearing 7 is far from the rotation center 2a of the bobbin 2).
  • the roll replacement time with a certain amount of room in the remaining diameter Df of the film F (not just before the film F runs out but with some time allowance).
  • the position of the bearing 7 can be set to a relatively low position with respect to the bobbin 2 (a state in which the rotation center of the bearing 7 is close to the rotation center 2a of the bobbin 2). Accordingly, it is possible to know the roll replacement time in a state where the remaining diameter Df of the film F is small (for example, a state immediately before the film F runs out).
  • 6A and 6B are explanatory views showing the relative positional relationship between the bearing 7 and the limit switch 8 due to the rotation of the eccentric member 18.
  • an eccentric member 18 is provided at a portion where the bearing 7 of the second arm 6 is connected. That is, the bearing 7 is connected to the second arm 6 via the eccentric member 18.
  • the rotation center (first rotation center position) 18a of the eccentric member 18 and the rotation center (second rotation center position) 7a of the bearing 7 are arranged differently.
  • the eccentric member 18 rotates under the control of the control unit 10. By rotating the eccentric member 18, the arrangement position of the bearing 7 is adjusted. 6A, the distance between the outer peripheral surface of the bearing 7 and the contact portion of the limit switch 8 (hereinafter simply referred to as the distance between the bearing 7 and the limit switch 8) is H1.
  • the distance H2 between the bearing 7 and the limit switch 8 is larger than the distance H1 shown in FIG. 6A. It becomes smaller (H2 ⁇ H1). That is, the position of the bearing 7 on the contact portion side of the limit switch 8 is set relatively low with respect to the contact portion of the limit switch 8 (the rotation center 7a of the bearing 7 is close to the rotation center 2a of the bobbin 2). Is done. Therefore, it is possible to know the roll replacement time while the remaining diameter Df of the film F is small.
  • the distance H3 between the bearing 7 and the limit switch 8 is shown in FIG. 6A. It becomes larger than the distance H1 (H3> H1). That is, the position of the bearing 7 on the contact portion side of the limit switch 8 is set to a relatively high position with respect to the contact portion of the limit switch 8 (the state where the rotation center 7a of the bearing 7 is far from the rotation center 2a of the bobbin 2). Is done. Therefore, the roll replacement time can be known with a certain amount of room for the remaining diameter Df of the film F.
  • the relative position between the bearing 7 and the limit switch 8 can be adjusted, and the remaining diameter Df of the film F that becomes the roll replacement time can be adjusted.
  • the remaining diameter Df of the film F can be directly measured by the detection unit 8. Further, since the bearing 7 rotates in accordance with the delivery of the film F, the state where the bearing 7 is in contact with the surface of the film F is maintained when the film F is delivered from the supply unit 20. Therefore, the change in the distance from the fixed position of the detection unit 8 to the exposed portion 2S of the bobbin 2 (the decrease in the remaining diameter Df of the film F) accompanying the feeding of the film F is stabilized. Therefore, the value detected by the detection unit 8 becomes a stable value. Therefore, it is possible to provide the film remaining diameter detection device 1 that can accurately detect the remaining diameter Df of the film F.
  • the roll replacement time can be appropriately advanced or delayed as appropriate.
  • the detection unit 8 is a limit switch, the contact-type film remaining diameter detection device 1 can be realized.
  • the structure 22 rotates around the rotation axis at one end of the second arm 6 (rotation axis 5a at the other end of the first arm 5) by the action of gravity, the film F is sent out from the supply unit 20.
  • the state in which the bearing 7 is in contact with the surface of the film F is maintained. Therefore, since the structure 22 rotates without requiring control of the control unit 10, it is easy to accurately detect the remaining diameter Df of the film F.
  • the rotation operation of the arm 4 is controlled by the control unit 10, so that the film remaining is automatically performed regardless of the operator.
  • the diameter detection device 1 can be set. Therefore, the remaining diameter Df of the film F can be accurately detected without taking time and effort.
  • a laser displacement sensor can be used as the detection unit.
  • the laser displacement sensor includes a light emitting element such as a semiconductor laser and an optical position detection element.
  • the laser displacement sensor is configured such that when the laser beam is emitted from the semiconductor laser toward the object (exposed portion 2S of the bobbin 2), the light reflected by the object is received by the optical position detection element. Yes.
  • the optical position detection element When the object moves, the light receiving position by the optical position detection element also moves. Therefore, the distance from the fixed position of the laser displacement sensor to the measurement object can be detected by detecting the light receiving position.
  • a non-contact type film remaining diameter detection device can be realized.
  • FIGS. 7A and 7B are perspective views showing a film remaining diameter detection device 1A according to the second embodiment of the present invention.
  • the film remaining diameter detection apparatus 1A of the present embodiment is different from the film remaining diameter detection apparatus 1 of the first embodiment in that the arm 6A is rotatably connected to the gantry 21 of the bobbin 2. Note that the operation of the remaining film diameter detection apparatus 1A is the same as that in the above embodiment, and thus detailed description thereof is omitted.
  • the film remaining diameter detection device 1A includes an arm shaft 23, an arm 6A rotatably connected to the arm shaft 23, a bearing 7, a limit switch 8, and a calculation unit (not shown). And a control unit (not shown) that performs overall control of these mechanisms.
  • the arm shaft 23 is fixed to a support member 25 provided on the gantry 21 of the bobbin 2.
  • the support member 25 is provided with a clamp lever 24 for fixing the arm shaft 23. For example, when the clamp lever 24 is rotated clockwise, the arm shaft 23 is locked (fixed). Further, when the clamp lever 24 is rotated counterclockwise, the arm shaft 23 is unlocked.
  • an operator visually confirms a rough value of the remaining diameter Df of the film F.
  • the remaining diameter Df of the film F is confirmed to be a certain value
  • the remaining film diameter detecting device 1A is attached to the gantry and the arm shaft 23 is locked.
  • the arm shaft 23 is unlocked and the film remaining diameter detecting device 1A is removed from the gantry.
  • one end of the arm 6A is rotatable.
  • the arm 6A rotates.
  • the center of gravity of the structure 22A including the arm 6A, the bearing 7, and the limit switch 8 is located on the other end side of the arm 6A, and the structure 22A is around the rotation axis of one end of the arm 6A. Rotate. Thereby, the state which the bearing 7 contacted the surface of the film F is maintained.
  • the film remaining diameter detection device 1A capable of accurately detecting the remaining diameter Df of the film F can be realized with a simple configuration.
  • FIG. 8 is a schematic configuration diagram illustrating an example of the bonding system 100.
  • the bonding system 100 shown in FIG. 8 is provided with the film remaining diameter detection apparatus 1 of the said embodiment.
  • the bonding system 100 can bond optical members, such as a polarizing plate, an antireflection film, and a light-diffusion film, to bonding objects, such as a liquid crystal panel and an organic EL panel, for example in bonding area A1.
  • the bonding system 100 can manufacture the device containing the bonding target object and the optical member.
  • the bonding system 100 may be a part or the whole of a manufacturing system that manufactures the above device.
  • the bonding system 100 shown in FIG. 8 forms cut lines at a plurality of positions in the longitudinal direction by half-cutting the film F while conveying the film F.
  • a plurality of sheet pieces partitioned in the longitudinal direction by the cut lines can be formed.
  • Bonding system 100 can bond a plurality of sheet pieces and each liquid crystal panel P conveyed from the upstream of the production line of a liquid crystal display element in bonding area A1.
  • a configuration example of a film and a configuration example of a liquid crystal panel will be described.
  • FIG. 9 is a plan view showing a configuration example of the liquid crystal panel P.
  • FIG. 9 shows the liquid crystal panel P as viewed in plan from the thickness direction of the liquid crystal layer.
  • a liquid crystal panel P shown in FIG. 9 includes a first substrate P1, a second substrate P2 disposed to face the first substrate P1, and a liquid crystal layer sealed between the first substrate P1 and the second substrate P2. P3.
  • a range that fits inside the outer periphery of the liquid crystal layer P3 in plan view is a display region P4.
  • FIG. 10 is a cross-sectional view showing a configuration example of the film F.
  • the film F of this example has a long band shape, and a cross section perpendicular to the longitudinal direction is shown in FIG.
  • the longitudinal direction of the film F may be simply referred to as the longitudinal direction.
  • the film F shown in FIG. 10 includes an optical member F1, an adhesive layer F2 provided on one surface of the optical member F1, a separator F3 that is detachably laminated with the optical member F1 via the adhesive layer F2, and an optical And a surface protective film F4 provided on the other surface of the member F1.
  • the optical member F1 of the film F of this example functions as a polarizing plate, and is bonded over the entire display area P4 of the liquid crystal panel P and its peripheral area.
  • the optical member F1 is bonded to the object to be bonded via the adhesive layer F2 in a state where the separator F3 is separated from the adhesive layer F2 while leaving the adhesive layer F2 on the surface of the optical member F1.
  • the separator F3 protects the adhesive layer F2 and the optical member F1 until it is separated from the adhesive layer F2.
  • the surface protection film F4 is bonded to the bonding object together with the optical member F1, and is disposed on the opposite side of the bonding object with respect to the optical member F1.
  • the surface protective film F4 of this example is separated from the optical member F1 at an appropriately selected timing.
  • the surface protective film F4 protects the optical member F1 until it is separated from the optical member F1.
  • the optical member F1 does not need to include the surface protection film F4. Further, the surface protective film F4 may not be separated from the optical member F1.
  • eliminated the separator F3 from the film F may be called the bonding film F5.
  • the optical member F1 includes a polarizer F6, a first film F7 bonded to one surface of the polarizer F6 with an adhesive or the like, and a second film F8 bonded to the other surface of the polarizer F6 with an adhesive or the like. And have.
  • the first film F7 and the second film F8 are, for example, protective films that protect the polarizer F6.
  • Specific examples of the protective film include a triacetyl cellulose film and a PET film.
  • the optical member F1 may have a single-layer structure including one optical layer, or a stacked structure in which a plurality of optical layers are stacked on each other.
  • the optical layer may be a retardation film or a brightness enhancement film in addition to the polarizer F6.
  • At least one of the first film F7 and the second film F8 may be subjected to a surface treatment that provides an effect such as a hard coat treatment for protecting the outermost surface of the liquid crystal display element or an antiglare treatment including an antiglare treatment. Further, at least one of the first film F7 and the second film F8 may not be provided.
  • the film F may have a structure in which the first film F7 is omitted and the separator F3 is bonded to one surface of the optical member F1 via the adhesive layer F2.
  • the bonding system 100 includes a transport device 101 that can feed the film F from the roll 103 around which the film F is wound, and transport at least the separator F3 of the film F in the longitudinal direction.
  • the conveyance apparatus 101 conveys the bonding film F5 with the separator F3 by using the separator F3 as a carrier.
  • the transport apparatus 101 includes a supply unit 102 corresponding to the start point of the transport path (hereinafter simply referred to as a transport path) of the separator F3, a winder 104 corresponding to the end point of the transport path, a supply unit 102, and a winder 104.
  • a transport path a transport path
  • a winder 104 corresponding to the end point of the transport path
  • a supply unit 102 corresponding to the end point of the transport path
  • a winder 104 corresponding to the end point of the transport path
  • a supply unit 102 corresponding to the end point of the transport path
  • a supply unit 102 corresponding to the end point of the transport path
  • a supply unit 104 corresponding to the end point of the transport path
  • a supply unit 102 a winder 104 corresponding to the end point of the transport path
  • a supply unit 102 corresponding to the end point of the transport path
  • a winder 104 corresponding to the end point of the transport path
  • the bonding system 100 includes a plurality of devices that are disposed on the transport path and perform processing on the film F being transported.
  • the bonding system 100 is arranged downstream of the feeding path from the supply unit 102, the cutting device 106 that performs a half cut on the film F, the bonding device 107 disposed in the bonding area A1, and the bonding system 100.
  • a control device 108 for controlling each unit.
  • the supply unit 102 of the transport apparatus 101 is configured by a feeding machine that can hold and rotate the roll 103 and feeds the film F from the roll 103 to the transport path.
  • the winder 104 collects only the separator F3 when the optical member F1 is separated from the separator F3.
  • the plurality of rollers form a transport path by spanning at least the separator F3 of the film F.
  • the plurality of rollers is constituted by a roller selected from a roller that changes the traveling direction of the film F being conveyed, a roller that can adjust the tension of the film F being conveyed, and the like.
  • the length measuring device 105 can measure the distance (transport distance) by which the film F is transported based on the rotation angle of the roller to which the length measuring device 105 is attached and the length of the outer periphery.
  • the measurement result of the length measuring device 105 is output to the control device 108.
  • the control device 108 Based on the measurement result of the length measuring device 105, the control device 108 is located at any position on the transport path where each point in the longitudinal direction of the film F exists at any time while the film F is transported. Is generated.
  • the cutting device 106 can cut a part in the thickness direction of the film F over the entire width in the width direction orthogonal to the longitudinal direction of the film F (sometimes referred to as half-cut).
  • the bonding system 100 of this embodiment is provided with the panel conveyance apparatus 109 which can convey liquid crystal panel P bonded with the bonding film F5 to bonding area A1.
  • the panel transport device 109 includes a panel holding unit 110 capable of holding the liquid crystal panel P, and a panel moving unit capable of moving the panel holding unit 110 from the carry-in area where the liquid crystal panel P is carried into the bonding system 100 to the bonding area A1.
  • 111 and a conveyor 112 capable of sending the liquid crystal panel P in a predetermined direction in the bonding area A1.
  • the operation timing and the like of each unit of the panel transport device 109 are controlled by the control device 108.
  • the panel holding unit 110 is controlled by the control device 108, and detachably holds the liquid crystal panel P transported from the upstream of the liquid crystal display element production line to the carry-in area by the conveyor 112 or the like by vacuum suction or the like.
  • the panel moving unit 111 can move the panel holding unit 110 in the vertical direction and the horizontal direction with respect to the conveyor 112.
  • the panel moving unit 111 moves the panel holding unit 110 from the carry-in area to the bonding area A1 while the liquid crystal panel P is held by the panel holding unit 110, and substantially moves the liquid crystal panel P to the bonding area A1. Can move.
  • Panel control part 110 is controlled by control device 108, can cancel adsorption of liquid crystal panel P in pasting area A1, and can deliver liquid crystal panel P to conveyor 112.
  • the conveyor 112 is bonded to the bonding device 107 so that the liquid crystal panel P transported to the bonding area A1 and the bonding film F5 transported to the bonding area A1 and bonded to the liquid crystal panel P are aligned with each other.
  • a liquid crystal panel P can be supplied.
  • the panel moving unit 111 and the conveyor 112 are controlled by the control device 108 so that the liquid crystal panel P arrives at the bonding area A1 when the sheet piece formed by the cutting device 106 is conveyed to the bonding area A1.
  • the collection mechanism 112 includes a knife edge 113 having a tip disposed in a conveyance path, a guide roller 114 that is one of a plurality of rollers constituting the conveyance device 101, a winder 104, and a conveyance Among the plurality of rollers constituting the apparatus 101, the roller is disposed on the conveyance path from the guide roller 114 to the winder 104.
  • the film F transported to the collection mechanism 112 is transported toward the tip of the knife edge 113.
  • the separator F3 is stretched over the tip portion and the guide roller 114, and is conveyed by the recovery mechanism 112, so that the separator F3 is bent with the tip portion of the knife edge 113 as a fulcrum.
  • the bonding film F5 proceeds toward the bonding area A1.
  • the separator F3 separated from the bonding film F5 is wound around the winder 104 via the guide roller 114 and collected. In this way, the separator collection process is executed.
  • the bonding apparatus 107 of this embodiment can perform the bonding process which bonds the optical member (bonding film F5) isolate
  • the bonding apparatus 107 of this embodiment includes a pair of bonding rollers.
  • the pair of laminating rollers are arranged so that their rotational axes are substantially parallel.
  • the pair of bonding rollers of the present embodiment are provided so as to be movable in directions away from each other.
  • the pair of bonding rollers are arranged in the vicinity of the bonding area A1 when the bonding process is executed.
  • Liquid crystal panel P conveyed to bonding area A1 is conveyed by the conveyor 112 between a pair of bonding rollers.
  • the liquid crystal panel P and the bonding film F5 bonded to each other have a pair of bonding so that the surfaces that contact each other after bonding are parallel to each other and parallel to the rotation axis of the pair of bonding rollers. Carried between rollers. A pair of bonding rollers sandwiches the liquid crystal panel P and the bonding film F5 and presses them together to bond them. Liquid crystal panel P bonded with bonding film F5 is conveyed downstream of the manufacturing line of a liquid crystal display element. In this way, the bonding process is executed.
  • the film remaining diameter detection device 1 of the above embodiment since the film remaining diameter detection device 1 of the above embodiment is provided, it is possible to provide the transport apparatus 101 that can accurately detect the remaining diameter Df of the film F. Moreover, the bonding system 100 which can detect the remaining diameter Df of the film F accurately can be provided.
  • the film splicing section that joins a new film (second film) having a larger remaining diameter than the film to the supply section. It is also possible to adopt a configuration comprising The operation of joining the new film is controlled by the control device when the remaining diameter of the film is reduced to a predetermined value.
  • an auto splicer such as a turret type unreel machine can be used as the film splicing portion.
  • FIG. 11A and 11B are schematic views showing an example of the film joint portion 200.
  • FIG. 11A is a diagram illustrating a state before film splicing
  • FIG. 11B is a diagram illustrating a state after film splicing.
  • the film joint portion 200 has a swivel arm formed by intersecting two arms.
  • a film 201 (hereinafter referred to as an old film) with a small remaining amount is attached to one end of the arm constituting the swivel arm.
  • an unused new film 202 is attached to the other end of the arm constituting the swivel arm.
  • FIG. 11B when the remaining diameter of the old film 201 is reduced to a predetermined value, the turning operation of the turning arm is controlled by the control device. The operation of joining the new film 202 is performed by the turning operation of the turning arm.
  • the new film 202 when the remaining diameter of the old film 201 is reduced to a predetermined value, the new film 202 can be automatically set without depending on the operator. Thereby, film splicing can be performed without taking time and effort.
  • FIG. 12 is a schematic diagram showing an example of a manufacturing system 300 provided with a film joint portion different from those shown in FIGS. 11A and 11B.
  • the manufacturing system 300 includes a first unwinding portion 301, a second unwinding portion 311, a first film splicing portion 303, a second film splicing portion 313, and a transport mechanism 312.
  • the 1st unwinding part 301 and the 2nd unwinding part 311 are apparatuses which hold
  • the film 310 unwound from the first unwinding section 301 is sent to the line side via each guide roll. The same applies to the film 320 unwound from the second unwinding portion 311.
  • the 1st unwinding part 301 and the 2nd unwinding part 311 are arranged in parallel.
  • the first unwinding portion 301 and the second unwinding portion 311 are movable in the longitudinal direction (horizontal direction) of the cores 301a and 311a of the films 310 and 320, respectively.
  • the first unwinding portion 301 is movable in the width direction of the film 310
  • the second unwinding portion 311 is movable in the width direction of the film 320.
  • FIG. 13A to 13E are diagrams for explaining a film splicing operation in the manufacturing system 300.
  • FIG. 13A when the remaining amount of the film 310 decreases, the conveyance of the film 310 is stopped. Thereafter, the suction portions 304 and 304 a and the cutting and bonding portion 305 are moved in the vertical direction with respect to the film 310. Thereafter, the film 310 is sucked and fixed by the sucking portions 304 and 304a. At this time, the cutting support surface 305 a is in contact with the film 310 in the cutting and bonding unit 305.
  • the film 310 is cut as shown in FIG. 13B.
  • the cutting and bonding unit 305 is separated from the film 310, rotated clockwise by 1/3 turn, and moved toward the film 310.
  • the adhesive tape (not shown) of the bonding surface 305b is bonded together so that the cutting line of the film 310 may be covered.
  • an adhesive tape (not shown) on the bonding surface 315b is bonded to the film 320 so as to cover the cutting line of the film 320 (see FIGS. 13D and 13E).
  • disconnection bonding part 305 are made to adjoin to the adsorption
  • the adhesive tape covering the cutting line of the films 310 and 320 the part beyond the cutting line (the part not bonded to the film 310 or 320) is bonded to the other film 320 or 310, whereby the film 310 , 320 are connected.
  • lamination bonding part 305 is spaced apart from the film 310, and is rotated 1/3 times counterclockwise. Then, the cutting and bonding unit 305 is moved toward the film 310.
  • the cutting and bonding part 315 is separated from the film 320 and rotated clockwise by 1/3 turn. Then, the cutting and bonding unit 315 is moved toward the film 320.
  • the adsorbing parts 304 and 304a and the cutting and bonding part 305 are returned to the positions shown in FIG. 13A, and a series of steps is completed. In this way, the films 310 and 320 can be connected as shown in FIG. 13H.
  • the film remaining diameter detection device it is possible to provide a film remaining diameter detection device, a transport device, and a bonding system that can accurately detect the remaining diameter of the film.

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

A device (1) for detecting the diameter of remaining film detects the diameter (Df) of a remaining first film (F) in the form of a band wound around a core material (2). This device (1) is provided with: a base unit (4); a rotor (7) that makes contact with the surface of the first film (F) and rotates as the first film (F) unwinds, the rotor being rotatably connected to the base unit (4); and a detector (8) secured to the base unit (4) in a securing position and used for detecting the distance from the securing position to an exposed portion (2S) of the core material exposed from the first film.

Description

フィルム残径検出装置、搬送装置および貼合システムFilm remaining diameter detection device, transport device and bonding system
　本発明は、フィルム残径検出装置、搬送装置および貼合システムに関する。
　本願は、２０１１年０６月２４日に、日本に出願された特願２０１１－１４０５１０号に基づき優先権を主張し、その内容をここに援用する。 The present invention relates to a film remaining diameter detection device, a conveyance device, and a bonding system.
This application claims priority based on Japanese Patent Application No. 2011-140510 filed in Japan on June 24, 2011, the contents of which are incorporated herein by reference.
　従来、芯材に巻かれた帯状のフィルムを巻き出して供給する供給部を備えた搬送装置が知られている。例えば特許文献１では、フィルムの巻き取りトルクを制御しつつ、フィルムの供給量とフィルムの厚みとに基づいてフィルムの残径を検出する方法が開示されている。 Conventionally, a transport device having a supply unit that unwinds and supplies a strip-shaped film wound around a core material is known. For example, Patent Document 1 discloses a method for detecting the remaining diameter of a film based on the supply amount of the film and the thickness of the film while controlling the winding torque of the film.
日本国特許第４５６９８１１号公報Japanese Patent No. 4569811
　ところで、搬送装置を工場等のライン設備で用いる場合には、搬送装置を長時間稼動させる必要がある。そのため、搬送装置を例えば個人的、家庭的な一般的な用途に用いる場合に比べて、高い生産性が要求される。高い生産性を満足させるためには、フィルムの残径を精度よく検出することが重要となる。しかしながら、特許文献１に示すフィルムの残径検出方法においては、そのような技術が開示されていない。 By the way, when the transport device is used in a line facility such as a factory, it is necessary to operate the transport device for a long time. For this reason, high productivity is required as compared with the case where the transport device is used for general personal and household uses, for example. In order to satisfy high productivity, it is important to accurately detect the remaining diameter of the film. However, the technique for detecting the remaining diameter of a film disclosed in Patent Document 1 does not disclose such a technique.
　本発明はこのような事情に鑑みてなされたものであって、フィルムの残径を精度よく検出することが可能なフィルム残径検出装置および貼合システムを提供することを目的とする。 This invention is made | formed in view of such a situation, Comprising: It aims at providing the film remaining diameter detection apparatus and bonding system which can detect the remaining diameter of a film accurately.
　上記の目的を達成するために、本発明の第１態様に係るフィルム残径検出装置は、芯材に巻かれた帯状の第１のフィルムの残径を検出するフィルム残径検出装置であって、基体と、前記基体に回転可能に接続され、前記第１のフィルムの表面に接触して前記第１のフィルムの送り出しに従って回転する回転体と、前記基体に固定位置で固定され、前記固定位置から、前記第１のフィルムから露出した前記芯材の露出部分までの距離を検出する検出部と、を備える。 In order to achieve the above object, a film remaining diameter detection device according to a first aspect of the present invention is a film remaining diameter detection device that detects the remaining diameter of a strip-shaped first film wound around a core material. A base body, a rotating body rotatably connected to the base body, rotating in contact with the surface of the first film and rotating in accordance with the feeding of the first film, and fixed to the base body at a fixed position. And a detection unit that detects a distance from the first film to the exposed portion of the core material that is exposed.
　本発明の第２態様に係るフィルム残径検出装置によれば、上記第１の態様において、前記基体は、前記回転体が接続された部分に偏芯部材を備え；前記偏芯部材を介して前記回転体が前記基体に接続され；前記偏芯部材の第１の回転中心位置と前記回転体の第２の回転中心位置とは異なり；前記偏芯部材を回転することにより、前記回転体の配置位置が調整されても良い。 According to the film remaining diameter detection device according to the second aspect of the present invention, in the first aspect, the base body includes an eccentric member at a portion to which the rotating body is connected; The rotating body is connected to the base; the first rotation center position of the eccentric member is different from the second rotation center position of the rotating body; by rotating the eccentric member, The arrangement position may be adjusted.
　本発明の第３態様に係るフィルム残径検出装置によれば、上記第１の態様において、前記検出部は、前記第１のフィルムの残径が所定の値まで小さくなったときに、前記芯材の前記露出部分との接触を検知するリミットスイッチであっても良い。 According to the film remaining diameter detection device according to the third aspect of the present invention, in the first aspect, the detection unit is configured to detect the core when the remaining diameter of the first film is reduced to a predetermined value. It may be a limit switch that detects contact with the exposed portion of the material.
　本発明の第４態様に係るフィルム残径検出装置によれば、上記第１の態様において、前記検出部はレーザー変位センサーであっても良い。 According to the film remaining diameter detection device according to the fourth aspect of the present invention, in the first aspect, the detection unit may be a laser displacement sensor.
　本発明の第５態様に係るフィルム残径検出装置によれば、上記第１の態様において、前記基体の第１の端部は回転可能になっており；前記基体の第２の端部には前記回転体が配置され；前記基体、前記回転体、及び前記検出部を含む構造体の重心が前記基体の前記第１の端部よりも前記第２の端部近くに配置され；前記構造体が前記基体の前記第１の端部の回転軸回りに回転することにより、前記回転体を前記第１のフィルムの表面に接触した状態が維持されていても良い。 According to the film remaining diameter detecting device of the fifth aspect of the present invention, in the first aspect, the first end of the base is rotatable; the second end of the base is The rotating body is disposed; the center of gravity of the structure including the base body, the rotating body, and the detection unit is disposed closer to the second end portion than the first end portion of the base body; May rotate around the rotation axis of the first end portion of the substrate to maintain a state in which the rotating body is in contact with the surface of the first film.
　本発明の第６態様に係る搬送装置は、前記第１のフィルムを巻き出して供給する供給部と；前記第１のフィルムの残径を検出する上述した第１態様から第５態様のいずれか一項に記載のフィルム残径検出装置と、を備えていても良い。 The conveying apparatus which concerns on the 6th aspect of this invention is a supply part which unwinds and supplies the said 1st film; Any one of the 1st aspect to the 5th aspect mentioned above which detects the remaining diameter of the said 1st film The film remaining diameter detecting device according to one item may be provided.
　本発明の第７態様に係る搬送装置によれば、上記第６態様において、前記供給部から供給される前記第１のフィルムの搬送経路に設けられ、前記第１のフィルムの送り出し量を測定する測長器と；前記測長器による測定結果に基づいて、前記第１のフィルムの残径が所定の値となったときに、前記回転体が前記第１のフィルムの前記表面に接触するように前記基体の回転動作を制御する制御部と；をさらに備えていても良い。 According to the conveying apparatus which concerns on the 7th aspect of this invention, it is provided in the conveyance path | route of the said 1st film supplied from the said supply part in the said 6th aspect, and measures the delivery amount of the said 1st film. A length measuring device; based on a measurement result by the length measuring device, when the remaining diameter of the first film reaches a predetermined value, the rotating body comes into contact with the surface of the first film. And a controller for controlling the rotation operation of the substrate.
　本発明の第８態様に係る搬送装置によれば、上記第６態様において、前記第１のフィルムの残径が前記所定の値まで小さくなったときに、前記供給部に前記第１のフィルムよりも残径が大きい第２のフィルムを継ぐフィルム継ぎ部を備えていても良い。 According to the conveyance apparatus which concerns on the 8th aspect of this invention, when the remaining diameter of the said 1st film becomes small to the said predetermined value in the said 6th aspect, it is more than a said 1st film to the said supply part. Alternatively, a film splicing portion that joins the second film having a large remaining diameter may be provided.
　本発明の第９態様に係る貼合システムは、上記第６態様に記載の搬送装置と、前記供給部から供給された前記第１のフィルムを貼合対象物に貼合する貼合装置と、を備えていても良い。 The bonding system which concerns on the 9th aspect of this invention is the conveying apparatus as described in the said 6th aspect, The bonding apparatus which bonds the said 1st film supplied from the said supply part to a bonding target object, May be provided.
　上記のフィルム残径検出装置によれば、フィルムの残径を精度よく検出することが可能なフィルム残径検出装置、搬送装置および貼合システムを提供することができる。 According to the film remaining diameter detection device, it is possible to provide a film remaining diameter detection device, a transport device, and a bonding system that can accurately detect the remaining diameter of the film.
本発明の第１実施形態のフィルム残径検出装置を示す模式図である。It is a schematic diagram which shows the film remaining diameter detection apparatus of 1st Embodiment of this invention. 第１実施形態のフィルム残径検出装置の要部を示す平面図である。It is a top view which shows the principal part of the film remaining diameter detection apparatus of 1st Embodiment. 第１実施形態のフィルム残径検出装置の要部を示す平面図である。It is a top view which shows the principal part of the film remaining diameter detection apparatus of 1st Embodiment. 第１実施形態のフィルム残径検出装置の要部を示す斜視図である。It is a perspective view which shows the principal part of the film remaining diameter detection apparatus of 1st Embodiment. 第１実施形態のフィルム残径検出装置の動作を示す説明図である。It is explanatory drawing which shows operation | movement of the film remaining diameter detection apparatus of 1st Embodiment. 第１実施形態のフィルム残径検出装置の動作を示す説明図である。It is explanatory drawing which shows operation | movement of the film remaining diameter detection apparatus of 1st Embodiment. 第１実施形態のフィルム残径検出装置の動作を示す説明図である。It is explanatory drawing which shows operation | movement of the film remaining diameter detection apparatus of 1st Embodiment. 第１実施形態の回転体の配置状態を示す説明図である。It is explanatory drawing which shows the arrangement | positioning state of the rotary body of 1st Embodiment. 第１実施形態の回転体の配置状態を示す説明図である。It is explanatory drawing which shows the arrangement | positioning state of the rotary body of 1st Embodiment. 第１実施形態の偏芯部材の回転によるベアリングとリミットスイッチとの相対位置関係を示す説明図である。It is explanatory drawing which shows the relative positional relationship of the bearing and limit switch by rotation of the eccentric member of 1st Embodiment. 第１実施形態の偏芯部材の回転によるベアリングとリミットスイッチとの相対位置関係を示す説明図である。It is explanatory drawing which shows the relative positional relationship of the bearing and limit switch by rotation of the eccentric member of 1st Embodiment. 第１実施形態の偏芯部材の回転によるベアリングとリミットスイッチとの相対位置関係を示す説明図である。It is explanatory drawing which shows the relative positional relationship of the bearing and limit switch by rotation of the eccentric member of 1st Embodiment. 本発明の第２実施形態のフィルム残径検出装置を示す斜視図である。It is a perspective view which shows the film remaining diameter detection apparatus of 2nd Embodiment of this invention. 第２実施形態のフィルム残径検出装置を示す斜視図である。It is a perspective view which shows the film remaining diameter detection apparatus of 2nd Embodiment. 貼合システムの一例を示す概略構成図である。It is a schematic block diagram which shows an example of the bonding system. 液晶パネルの一例を示す平面図である。It is a top view which shows an example of a liquid crystal panel. フィルムの一例を示す断面図である。It is sectional drawing which shows an example of a film. フィルム継ぎ部の一例を示す模式図である。It is a schematic diagram which shows an example of a film joint part. フィルム継ぎ部の一例を示す模式図である。It is a schematic diagram which shows an example of a film joint part. フィルム継ぎ部を備えた製造システムの一例を示す模式図である。It is a schematic diagram which shows an example of the manufacturing system provided with the film joint part. フィルム継ぎ動作を説明するための図である。It is a figure for demonstrating film splicing operation | movement. フィルム継ぎ動作を説明するための図である。It is a figure for demonstrating film splicing operation | movement. フィルム継ぎ動作を説明するための図である。It is a figure for demonstrating film splicing operation | movement. フィルム継ぎ動作を説明するための図である。It is a figure for demonstrating film splicing operation | movement. フィルム継ぎ動作を説明するための図である。It is a figure for demonstrating film splicing operation | movement. フィルム継ぎ動作を説明するための図である。It is a figure for demonstrating film splicing operation | movement. フィルム継ぎ動作を説明するための図である。It is a figure for demonstrating film splicing operation | movement. フィルム継ぎ動作を説明するための図である。It is a figure for demonstrating film splicing operation | movement.
　以下、図面を参照しつつ本発明の実施形態を説明するが、本発明は以下の実施形態のみに限定されない。
　以下の全ての図面においては、図面を見やすくするため、各構成要素の寸法や比率などは適宜異ならせてある。また、以下の説明及び図面中、同一又は相当する要素には同一の符号を付し、重複する説明は省略する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to the following embodiments.
In all the following drawings, the dimensions and ratios of the respective constituent elements are appropriately changed in order to make the drawings easy to see. In the following description and drawings, the same or corresponding elements are denoted by the same reference numerals, and redundant description is omitted.
（第１実施形態）
　図１は、本発明の第１実施形態のフィルム残径検出装置１を示す模式図である。図２Ａ及び図２Ｂは、本実施形態のフィルム残径検出装置１の要部を示す平面図である。図３は、本実施形態のフィルム残径検出装置１の要部を示す斜視図である。 (First embodiment)
FIG. 1 is a schematic diagram showing a film remaining diameter detection device 1 according to the first embodiment of the present invention. 2A and 2B are plan views showing a main part of the film remaining diameter detection device 1 of the present embodiment. FIG. 3 is a perspective view showing a main part of the film remaining diameter detection device 1 of the present embodiment.
　図１から図３に示すフィルム残径検出装置１は、例えば液晶パネルや有機ＥＬパネルなどの基板に貼り付ける偏光フィルム、位相差フィルムなどの光学フィルム（以下、単にフィルムという）を供給部２０から巻き出して供給する際に、ボビン２（芯材）に巻かれた帯状のフィルムＦの残径を検出する。なお、フィルムは、可撓性を有する帯状の機能性フィルムであれば特に限定されない。 The film remaining diameter detection apparatus 1 shown in FIGS. 1 to 3 includes an optical film (hereinafter simply referred to as a film) such as a polarizing film and a retardation film that is attached to a substrate such as a liquid crystal panel or an organic EL panel. When unwinding and supplying, the remaining diameter of the strip | belt-shaped film F wound around the bobbin 2 (core material) is detected. In addition, a film will not be specifically limited if it is a strip | belt-shaped functional film which has flexibility.
　図１から図３に示すように、フィルム残径検出装置１は、ステージ３と、ステージ３に回転可能に接続されたアーム４と、アーム４に回転可能に接続されフィルム（第１のフィルム）Ｆの表面に接触してフィルムＦの送り出しに従って回転するベアリング７（回転体）と、アーム４に固定位置で固定され、この固定位置から、ボビン２のフィルムＦから露出した部分２Ｓまでの距離を検出する検出部８と、測長器１０５（図８参照）の測定結果によりフィルムＦの残径の大まかな値を演算する演算部９と、これらの機構の統括制御を行う制御部１０と、を含んで構成されている。図３に示すように、ボビン２は架台２１に回転可能に支持されている。 As shown in FIGS. 1 to 3, the remaining film diameter detecting device 1 includes a stage 3, an arm 4 rotatably connected to the stage 3, and a film (first film) rotatably connected to the arm 4. A bearing 7 (rotary body) that contacts the surface of F and rotates in accordance with the delivery of the film F, is fixed to the arm 4 at a fixed position, and the distance from the fixed position to the exposed portion 2S of the bobbin 2 from the film F is determined. A detecting unit 8 for detecting, a calculating unit 9 for calculating a rough value of the remaining diameter of the film F based on a measurement result of the length measuring device 105 (see FIG. 8), a control unit 10 for performing overall control of these mechanisms, It is comprised including. As shown in FIG. 3, the bobbin 2 is rotatably supported by the gantry 21.
　ステージ３は、ステージ本体１１と、ピストン・シリンダー機構１２と、ステージ３本体に固定されピストン・シリンダー機構１２を回転可能に支持する第１支持部１５と、ステージ３本体に固定されアーム４を回転可能に支持する第２支持部１６と、を備えている。 The stage 3 includes a stage body 11, a piston / cylinder mechanism 12, a first support portion 15 that is fixed to the stage 3 body and rotatably supports the piston / cylinder mechanism 12, and is fixed to the stage 3 body and rotates the arm 4. A second support portion 16 that supports the second support portion 16 in a possible manner.
　ピストン・シリンダー機構１２は、ピストン１３と、このピストン１３を摺動可能に収容するシリンダー１４と、を備えている。ピストン１３の一端部（シリンダー１４に収容された部分とは反対側の部分）は、アーム４に回転可能に接続されている。シリンダー１４の一端部は、第１支持部１５に回転可能に接続されている。 The piston / cylinder mechanism 12 includes a piston 13 and a cylinder 14 that slidably accommodates the piston 13. One end of the piston 13 (the part opposite to the part accommodated in the cylinder 14) is rotatably connected to the arm 4. One end of the cylinder 14 is rotatably connected to the first support 15.
　ピストン１３は、制御部１０の制御により、シリンダー１４の長手方向に沿って摺動する。ピストン１３の摺動に従って、アーム４がステージ３の第２支持部１６の回転軸１６ａ回りに回転する。例えば、ピストン１３が最も高い位置（上死点）に移動すると、アーム４はステージ３の第２支持部１６に対して略垂直に起立する。一方、ピストン１３が最も低い位置（下死点）に移動すると、アーム４はステージ３の第２支持部１６の回転軸１６ａを中心にボビン２に向けて回転する。 The piston 13 slides along the longitudinal direction of the cylinder 14 under the control of the control unit 10. As the piston 13 slides, the arm 4 rotates around the rotation axis 16 a of the second support portion 16 of the stage 3. For example, when the piston 13 moves to the highest position (top dead center), the arm 4 stands substantially perpendicular to the second support portion 16 of the stage 3. On the other hand, when the piston 13 moves to the lowest position (bottom dead center), the arm 4 rotates toward the bobbin 2 around the rotation shaft 16a of the second support portion 16 of the stage 3.
　アーム４は、ステージ３の第２支持部１６に一端部（第１の端部）が回転可能に支持された第１アーム５と、第１アーム５の他端部に一端部が回転可能に接続された第２アーム６と、を備えている。アーム４（第１アーム５）は、制御部１０の制御により、ステージ３の第２支持部１６の回転軸１６ａ回りに回転する。第２アーム６は、制御部１０の制御により、一端部が第１アーム５の他端部の回転軸５ａ回りに回転する。 The arm 4 includes a first arm 5 whose one end (first end) is rotatably supported by the second support portion 16 of the stage 3, and one end which is rotatable at the other end of the first arm 5. A second arm 6 connected thereto. The arm 4 (first arm 5) rotates around the rotation axis 16 a of the second support part 16 of the stage 3 under the control of the control part 10. One end of the second arm 6 rotates around the rotation axis 5 a of the other end of the first arm 5 under the control of the control unit 10.
　ベアリング７は、第２アーム６の他端部に回転可能に接続されている。具体的には、図２Ａ，図２Ｂに示すように、第２アーム６の他端部（第２の端部）にはベアリングシャフト１７が固定されており、ベアリング７はこのベアリングシャフト１７に回転可能に支持されている。ベアリング７としては、例えばウレタンモールドベアリングを用いることができる。 The bearing 7 is rotatably connected to the other end of the second arm 6. Specifically, as shown in FIGS. 2A and 2B, a bearing shaft 17 is fixed to the other end portion (second end portion) of the second arm 6, and the bearing 7 rotates around the bearing shaft 17. Supported as possible. As the bearing 7, for example, a urethane mold bearing can be used.
　検出部８は、第２アーム６の他端部においてベアリング７よりも第１アーム５に近い側に固定されている。検出部８は、この固定位置からボビン２のフィルムＦから露出した部分２Ｓまでの距離を検出する。本実施形態においては、検出部８としてリミットスイッチを用いる。リミットスイッチ８は、ボビン２に巻かれたフィルムＦの残径Ｄｆが所定の値まで小さくなったときに、ボビン２のフィルムＦから露出した部分２Ｓに接触して接触を検知するものである。 The detection unit 8 is fixed to the side closer to the first arm 5 than the bearing 7 at the other end of the second arm 6. The detection unit 8 detects the distance from the fixed position to the exposed portion 2S of the bobbin 2 from the film F. In the present embodiment, a limit switch is used as the detection unit 8. The limit switch 8 detects contact by contacting the portion 2S exposed from the film F of the bobbin 2 when the remaining diameter Df of the film F wound around the bobbin 2 is reduced to a predetermined value.
　リミットスイッチ８は、予め、前記露出部分２Ｓから離間した位置に配置されている。リミットスイッチ８は、ボビン２に巻かれたフィルムＦの残径Ｄｆが十分に大きいときには、前記露出部分２Ｓから離間している。リミットスイッチ８は、供給部２０からのフィルムＦの送り出しに伴いフィルムＦの残径Ｄｆが小さくなるのに従って、前記露出部分２Ｓに近づく。そして、フィルムＦの残径Ｄｆが所定の値まで小さくなったときに、リミットスイッチ８は、前記露出部分２Ｓに接触する。 The limit switch 8 is previously arranged at a position separated from the exposed portion 2S. The limit switch 8 is separated from the exposed portion 2S when the remaining diameter Df of the film F wound around the bobbin 2 is sufficiently large. The limit switch 8 approaches the exposed portion 2S as the remaining diameter Df of the film F decreases as the film F is fed from the supply unit 20. Then, when the remaining diameter Df of the film F is reduced to a predetermined value, the limit switch 8 comes into contact with the exposed portion 2S.
　演算部９は、後述する測長器１０５（図８参照）の測定結果に基づいてフィルムＦの残径Ｄｆの大まかな値を演算する。例えば、原反フィルムの長さ（例えばセット時のフィルムのもとの長さ）から後述する測長器１０５により測定されたフィルムＦの送り出し量を減らすことにより、フィルムＦの残径Ｄｆの大まかな値が演算される。 The calculation unit 9 calculates a rough value of the remaining diameter Df of the film F based on a measurement result of a length measuring device 105 (see FIG. 8) described later. For example, by reducing the feed amount of the film F measured by the length measuring device 105 described later from the length of the original film (for example, the original length of the film at the time of setting), the remaining diameter Df of the film F is roughly The correct value is calculated.
　制御部１０は、演算部９により演算されたフィルムＦの残径Ｄｆが所定の値となったときに、ベアリング７がフィルムＦの表面に接触するようにアーム４の回転動作を制御する。すなわち、図１に示すように、演算されたフィルムＦの残径Ｄｆが所定の値となるまでは、ピストン１３が最も高い位置（上死点）に位置しており、アーム４はステージ３の第２支持部１６に対して略垂直に起立している。一方、演算されたフィルムＦの残径Ｄｆが所定の値となったときには、ピストン１３が最も低い位置（下死点）に移動し、アーム４はステージ３の第２支持部１６の回転軸１６ａを中心にボビン２に向けて回転する。 The control unit 10 controls the rotation operation of the arm 4 so that the bearing 7 contacts the surface of the film F when the remaining diameter Df of the film F calculated by the calculation unit 9 becomes a predetermined value. That is, as shown in FIG. 1, the piston 13 is located at the highest position (top dead center) until the calculated remaining diameter Df of the film F reaches a predetermined value, and the arm 4 It stands substantially perpendicular to the second support portion 16. On the other hand, when the calculated remaining diameter Df of the film F reaches a predetermined value, the piston 13 moves to the lowest position (bottom dead center), and the arm 4 rotates the rotation shaft 16a of the second support portion 16 of the stage 3. And rotate toward the bobbin 2.
　図４Ａ～図４Ｃは、フィルム残径検出装置１の動作を示す説明図である。
　図４Ａに示すように、第２アーム６の一端部は回転可能である。第２アーム６の一端部が、制御部１０の制御により第１アーム５の他端部の回転軸５ａ回りに回転する。このほか、第２アーム６は、重力が作用することにより回転する。具体的には、第２アーム６、ベアリング７、及びリミットスイッチ８からなる構造体２２の重心が第２アーム６の他端部側（第２アーム６の一端部よりも他端に近い）に位置しており、この構造体２２が第２アーム６の一端部の回転軸（第１アーム５の他端部の回転軸５ａ）回りに回転する。これにより、ベアリング７がフィルムＦの表面に接触した状態が維持される。なお、ベアリング７は、ボビン２から送り出されたフィルムＦではなく、ボビン２に巻かれたフィルムＦの表面に接触する。 4A to 4C are explanatory diagrams showing the operation of the film remaining diameter detection device 1. FIG.
As shown in FIG. 4A, one end of the second arm 6 is rotatable. One end of the second arm 6 rotates around the rotation shaft 5 a of the other end of the first arm 5 under the control of the control unit 10. In addition, the second arm 6 rotates by the action of gravity. Specifically, the center of gravity of the structure 22 including the second arm 6, the bearing 7, and the limit switch 8 is on the other end side of the second arm 6 (closer to the other end than one end of the second arm 6). The structure 22 is rotated around the rotation axis at one end of the second arm 6 (the rotation axis 5a at the other end of the first arm 5). Thereby, the state which the bearing 7 contacted the surface of the film F is maintained. The bearing 7 contacts the surface of the film F wound around the bobbin 2, not the film F fed out from the bobbin 2.
　図４Ｂに示すように、構造体２２は、フィルムＦの残径Ｄｆの減少に従って、回転軸５ａを中心に右回りに回転する。ベアリング７は、供給部２０からのフィルムＦの送り出しに従って、ベアリングシャフト１７を中心に左回りに回転する。 As shown in FIG. 4B, the structure 22 rotates clockwise around the rotation shaft 5a as the remaining diameter Df of the film F decreases. The bearing 7 rotates counterclockwise around the bearing shaft 17 as the film F is fed from the supply unit 20.
　図４Ｃに示すように、フィルムＦの残径Ｄｆが所定の値まで小さくなると、リミットスイッチ８がボビン２の露出部分２Ｓに接触する。リミットスイッチ８がボビン２の露出部分２Ｓに接触することによって、フィルムＦの残径Ｄｆを検出することができる。すなわち、リミットスイッチ８がロールの交換時期を知らせるセンサーとして機能する。 As shown in FIG. 4C, when the remaining diameter Df of the film F decreases to a predetermined value, the limit switch 8 comes into contact with the exposed portion 2S of the bobbin 2. When the limit switch 8 contacts the exposed portion 2S of the bobbin 2, the remaining diameter Df of the film F can be detected. In other words, the limit switch 8 functions as a sensor that notifies the time for roll replacement.
　リミットスイッチ８がボビン２の露出部分２Ｓに接触したという信号は不図示の配線を介して制御部１０に伝達される。そして、フィルムＦが残り少ない状態のロールと新しいロールとの交換が行われる。 A signal that the limit switch 8 has come into contact with the exposed portion 2S of the bobbin 2 is transmitted to the control unit 10 via a wiring (not shown). Then, the roll with a little remaining film F is replaced with a new roll.
　ここで、フィルムＦの残径Ｄｆは、ベアリング７とリミットスイッチ８との相対位置から求めることができる。例えば、フィルムの残径をＤｆ、ボビン２の回転中心からベアリング７の外周面までの距離をＬ１、ボビン２の回転中心からリミットスイッチ８の接触部までの距離をＬ２とすると、Ｄｆ＝Ｌ１－Ｌ２で表される。 Here, the remaining diameter Df of the film F can be obtained from the relative position between the bearing 7 and the limit switch 8. For example, if the remaining film diameter is Df, the distance from the rotation center of the bobbin 2 to the outer peripheral surface of the bearing 7 is L1, and the distance from the rotation center of the bobbin 2 to the contact portion of the limit switch 8 is L2, Df = L1− Represented by L2.
　すなわち、予めベアリング７とリミットスイッチ８との相対位置を調整することにより、ロールの交換時期となるフィルムＦの残径Ｄｆを調整することができる。なお、本実施形態において、ベアリング７とリミットスイッチ８との相対位置は適宜変更可能である。 That is, by adjusting the relative position between the bearing 7 and the limit switch 8 in advance, it is possible to adjust the remaining diameter Df of the film F that becomes the roll replacement time. In the present embodiment, the relative position between the bearing 7 and the limit switch 8 can be changed as appropriate.
　図５Ａ，図５Ｂは、ベアリング７の配置状態を示す説明図である。
　図５Ａに示すように、例えばベアリング７の位置をボビン２に対して相対的に高い位置（ベアリング７の回転中心がボビン２の回転中心２ａから遠い状態）に設定することができる。これにより、フィルムＦの残径Ｄｆにある程度のゆとりをもって（フィルムＦがなくなる直前ではなく、ある程度の時間的余裕を有して）、ロールの交換時期を知ることができる。 5A and 5B are explanatory diagrams showing the arrangement state of the bearing 7.
As shown in FIG. 5A, for example, the position of the bearing 7 can be set to a relatively high position with respect to the bobbin 2 (the state where the rotation center of the bearing 7 is far from the rotation center 2a of the bobbin 2). Thereby, it is possible to know the roll replacement time with a certain amount of room in the remaining diameter Df of the film F (not just before the film F runs out but with some time allowance).
　一方、図５Ｂに示すように、例えばベアリング７の位置をボビン２に対して相対的に低い位置（ベアリング７の回転中心がボビン２の回転中心２ａに近い状態）に設定することもできる。これにより、フィルムＦの残径Ｄｆが残り少ない状態（例えば、フィルムＦがなくなる直前の状態）で、ロールの交換時期を知ることができる。 On the other hand, as shown in FIG. 5B, for example, the position of the bearing 7 can be set to a relatively low position with respect to the bobbin 2 (a state in which the rotation center of the bearing 7 is close to the rotation center 2a of the bobbin 2). Accordingly, it is possible to know the roll replacement time in a state where the remaining diameter Df of the film F is small (for example, a state immediately before the film F runs out).
　図６Ａ，図６Ｂは、偏芯部材１８の回転によるベアリング７とリミットスイッチ８との相対位置関係を示す説明図である。 6A and 6B are explanatory views showing the relative positional relationship between the bearing 7 and the limit switch 8 due to the rotation of the eccentric member 18.
　図６Ａに示すように、第２アーム６のベアリング７が接続された部分には偏芯部材１８が設けられている。すなわち、ベアリング７は偏芯部材１８を介して第２アーム６に接続されている。偏芯部材１８の回転中心（第１の回転中心位置）１８ａとベアリング７の回転中心（第２の回転中心位置）７ａとは異なるように配置されている。偏芯部材１８は、制御部１０の制御により回転する。偏芯部材１８を回転させることにより、ベアリング７の配置位置が調整される。なお、図６Ａにおけるベアリング７の外周面とリミットスイッチ８の接触部との間の距離（以下、単にベアリング７とリミットスイッチ８との間の距離という）をＨ１とする。 As shown in FIG. 6A, an eccentric member 18 is provided at a portion where the bearing 7 of the second arm 6 is connected. That is, the bearing 7 is connected to the second arm 6 via the eccentric member 18. The rotation center (first rotation center position) 18a of the eccentric member 18 and the rotation center (second rotation center position) 7a of the bearing 7 are arranged differently. The eccentric member 18 rotates under the control of the control unit 10. By rotating the eccentric member 18, the arrangement position of the bearing 7 is adjusted. 6A, the distance between the outer peripheral surface of the bearing 7 and the contact portion of the limit switch 8 (hereinafter simply referred to as the distance between the bearing 7 and the limit switch 8) is H1.
　例えば、図６Ｂに示すように、偏芯部材１８を図示しないボビン２に向けて右回りに回転させた場合、ベアリング７とリミットスイッチ８との間の距離Ｈ２は図６Ａに示す距離Ｈ１よりも小さくなる（Ｈ２＜Ｈ１）。つまり、ベアリング７の、リミットスイッチ８の接触部側の位置がリミットスイッチ８の接触部に対して相対的に低い位置（ベアリング７の回転中心７ａがボビン２の回転中心２ａに近い状態）に設定される。したがって、フィルムＦの残径Ｄｆが残り少ない状態で、ロールの交換時期を知ることができる。 For example, as shown in FIG. 6B, when the eccentric member 18 is rotated clockwise toward the bobbin 2 (not shown), the distance H2 between the bearing 7 and the limit switch 8 is larger than the distance H1 shown in FIG. 6A. It becomes smaller (H2 <H1). That is, the position of the bearing 7 on the contact portion side of the limit switch 8 is set relatively low with respect to the contact portion of the limit switch 8 (the rotation center 7a of the bearing 7 is close to the rotation center 2a of the bobbin 2). Is done. Therefore, it is possible to know the roll replacement time while the remaining diameter Df of the film F is small.
　一方、図６Ｃに示すように、偏芯部材１８を図示しないボビン２とは反対側に向けて左回りに回転させた場合、ベアリング７とリミットスイッチ８との間の距離Ｈ３は図６Ａに示す距離Ｈ１よりも大きくなる（Ｈ３＞Ｈ１）。つまり、ベアリング７の、リミットスイッチ８の接触部側の位置がリミットスイッチ８の接触部に対して相対的に高い位置（ベアリング７の回転中心７ａがボビン２の回転中心２ａから遠い状態）に設定される。したがって、フィルムＦの残径Ｄｆにある程度のゆとりをもって、ロールの交換時期を知ることができる。 On the other hand, when the eccentric member 18 is rotated counterclockwise toward the opposite side of the bobbin 2 (not shown) as shown in FIG. 6C, the distance H3 between the bearing 7 and the limit switch 8 is shown in FIG. 6A. It becomes larger than the distance H1 (H3> H1). That is, the position of the bearing 7 on the contact portion side of the limit switch 8 is set to a relatively high position with respect to the contact portion of the limit switch 8 (the state where the rotation center 7a of the bearing 7 is far from the rotation center 2a of the bobbin 2). Is done. Therefore, the roll replacement time can be known with a certain amount of room for the remaining diameter Df of the film F.
　このように、偏芯部材１８の回転を制御することにより、ベアリング７とリミットスイッチ８との相対位置を調整して、ロールの交換時期となるフィルムＦの残径Ｄｆを調整することができる。 Thus, by controlling the rotation of the eccentric member 18, the relative position between the bearing 7 and the limit switch 8 can be adjusted, and the remaining diameter Df of the film F that becomes the roll replacement time can be adjusted.
　以上のようなフィルム残径検出装置１によれば、検出部８によってフィルムＦの残径Ｄｆを直接的に測定することができる。また、フィルムＦの送り出しに従ってベアリング７が回転するので、供給部２０からフィルムＦが送り出される際にベアリング７がフィルムＦの表面に接触した状態が維持される。そのため、フィルムＦの送り出しに伴う検出部８の固定位置からボビン２の露出部分２Ｓまでの距離の変化（フィルムＦの残径Ｄｆの減少）が安定する。したがって、検出部８により検出される値が安定した値となる。したがって、フィルムＦの残径Ｄｆを精度よく検出することが可能なフィルム残径検出装置１を提供することができる。 According to the film remaining diameter detection apparatus 1 as described above, the remaining diameter Df of the film F can be directly measured by the detection unit 8. Further, since the bearing 7 rotates in accordance with the delivery of the film F, the state where the bearing 7 is in contact with the surface of the film F is maintained when the film F is delivered from the supply unit 20. Therefore, the change in the distance from the fixed position of the detection unit 8 to the exposed portion 2S of the bobbin 2 (the decrease in the remaining diameter Df of the film F) accompanying the feeding of the film F is stabilized. Therefore, the value detected by the detection unit 8 becomes a stable value. Therefore, it is possible to provide the film remaining diameter detection device 1 that can accurately detect the remaining diameter Df of the film F.
　また、偏芯部材１８によりベアリング７とリミットスイッチ８との相対位置が調整されるので、適宜ロールの交換時期を早くしたり遅くしたりすることができる。 Further, since the relative position between the bearing 7 and the limit switch 8 is adjusted by the eccentric member 18, the roll replacement time can be appropriately advanced or delayed as appropriate.
　また、検出部８がリミットスイッチであるので、接触式のフィルム残径検出装置１を実現することができる。 Moreover, since the detection unit 8 is a limit switch, the contact-type film remaining diameter detection device 1 can be realized.
　また、重力の作用により構造体２２が第２アーム６の一端部の回転軸（第１アーム５の他端部の回転軸５ａ）回りに回転するので、供給部２０からフィルムＦが送り出される際にベアリング７がフィルムＦの表面に接触した状態が維持される。したがって、制御部１０の制御を必要とせずに構造体２２が回転するので、フィルムＦの残径Ｄｆを精度よく検出することが容易となる。 Further, since the structure 22 rotates around the rotation axis at one end of the second arm 6 (rotation axis 5a at the other end of the first arm 5) by the action of gravity, the film F is sent out from the supply unit 20. In addition, the state in which the bearing 7 is in contact with the surface of the film F is maintained. Therefore, since the structure 22 rotates without requiring control of the control unit 10, it is easy to accurately detect the remaining diameter Df of the film F.
　また、演算部９により演算されたフィルムＦの残径Ｄｆが所定の値となったときに、制御部１０によりアーム４の回転動作が制御されるので、作業者によらずに自動でフィルム残径検出装置１をセットすることができる。したがって、手間をかけずにフィルムＦの残径Ｄｆを精度よく検出することができる。 In addition, when the remaining diameter Df of the film F calculated by the calculation unit 9 reaches a predetermined value, the rotation operation of the arm 4 is controlled by the control unit 10, so that the film remaining is automatically performed regardless of the operator. The diameter detection device 1 can be set. Therefore, the remaining diameter Df of the film F can be accurately detected without taking time and effort.
　なお、本実施形態においては、検出部８としてリミットスイッチを用いた例を挙げて説明したがこれに限らない。例えば、検出部としてレーザー変位センサーを用いることもできる。レーザー変位センサーは、半導体レーザーなどの発光素子と光位置検出素子とを含んで構成されている。レーザー変位センサーは、半導体レーザーから対象物（ボビン２の露出部分２Ｓ）に向けてレーザー光が射出されると、対象物で反射された光が光位置検出素子によって受光されるように構成されている。対象物が移動すると、光位置検出素子による受光位置も移動するので、受光位置を検出することで、レーザー変位センサーの固定位置から測定対象物までの距離を検出できる。 In the present embodiment, an example in which a limit switch is used as the detection unit 8 has been described. However, the present invention is not limited to this. For example, a laser displacement sensor can be used as the detection unit. The laser displacement sensor includes a light emitting element such as a semiconductor laser and an optical position detection element. The laser displacement sensor is configured such that when the laser beam is emitted from the semiconductor laser toward the object (exposed portion 2S of the bobbin 2), the light reflected by the object is received by the optical position detection element. Yes. When the object moves, the light receiving position by the optical position detection element also moves. Therefore, the distance from the fixed position of the laser displacement sensor to the measurement object can be detected by detecting the light receiving position.
　検出部としてレーザー変位センサーを用いることにより、非接触式のフィルム残径検出装置を実現することができる。 By using a laser displacement sensor as the detection unit, a non-contact type film remaining diameter detection device can be realized.
（第２実施形態）
　図７Ａ，図７Ｂは、本発明の第２実施形態のフィルム残径検出装置１Ａを示す斜視図である。
　本実施形態のフィルム残径検出装置１Ａは、アーム６Ａがボビン２の架台２１に回転可能に接続されている点が上記第１実施形態のフィルム残径検出装置１と異なる。なお、フィルム残径検出装置１Ａの動作は上記実施形態と同様であるため、詳細な説明を省略する。 (Second Embodiment)
7A and 7B are perspective views showing a film remaining diameter detection device 1A according to the second embodiment of the present invention.
The film remaining diameter detection apparatus 1A of the present embodiment is different from the film remaining diameter detection apparatus 1 of the first embodiment in that the arm 6A is rotatably connected to the gantry 21 of the bobbin 2. Note that the operation of the remaining film diameter detection apparatus 1A is the same as that in the above embodiment, and thus detailed description thereof is omitted.
　図７Ａに示すように、フィルム残径検出装置１Ａは、アームシャフト２３と、アームシャフト２３に回転可能に接続されたアーム６Ａと、ベアリング７と、リミットスイッチ８と、演算部（図示略）と、これらの機構の統括制御を行う制御部（図示略）と、を含んで構成されている。 As shown in FIG. 7A, the film remaining diameter detection device 1A includes an arm shaft 23, an arm 6A rotatably connected to the arm shaft 23, a bearing 7, a limit switch 8, and a calculation unit (not shown). And a control unit (not shown) that performs overall control of these mechanisms.
　アームシャフト２３は、ボビン２の架台２１に設けられた支持部材２５に固定されている。支持部材２５には、アームシャフト２３を固定するためのクランプレバー２４が設けられている。例えば、クランプレバー２４を右回りに回転させるとアームシャフト２３がロック（固定）される。また、クランプレバー２４を左回りに回転させるとアームシャフト２３のロックが解除される。 The arm shaft 23 is fixed to a support member 25 provided on the gantry 21 of the bobbin 2. The support member 25 is provided with a clamp lever 24 for fixing the arm shaft 23. For example, when the clamp lever 24 is rotated clockwise, the arm shaft 23 is locked (fixed). Further, when the clamp lever 24 is rotated counterclockwise, the arm shaft 23 is unlocked.
　例えば、作業者が目視によりフィルムＦの残径Ｄｆの大まかな値を確認する。フィルムＦの残径Ｄｆがある程度の値と確認された場合は、フィルム残径検出装置１Ａを架台に取り付け、アームシャフト２３をロックする。一方、フィルムＦの残径Ｄｆが十分に大きい場合は、アームシャフト２３のロックを解除して、フィルム残径検出装置１Ａを架台から取り外す。 For example, an operator visually confirms a rough value of the remaining diameter Df of the film F. When the remaining diameter Df of the film F is confirmed to be a certain value, the remaining film diameter detecting device 1A is attached to the gantry and the arm shaft 23 is locked. On the other hand, when the remaining diameter Df of the film F is sufficiently large, the arm shaft 23 is unlocked and the film remaining diameter detecting device 1A is removed from the gantry.
　図７Ｂに示すように、アーム６Ａの一端部は回転可能である。重力が作用することにより、アーム６Ａは回転する。具体的には、アーム６Ａ、ベアリング７、及びリミットスイッチ８を含む構造体２２Ａの重心がアーム６Ａの他端部側に位置しており、構造体２２Ａがアーム６Ａの一端部の回転軸回りに回転する。これにより、ベアリング７がフィルムＦの表面に接触した状態が維持される。 As shown in FIG. 7B, one end of the arm 6A is rotatable. By the action of gravity, the arm 6A rotates. Specifically, the center of gravity of the structure 22A including the arm 6A, the bearing 7, and the limit switch 8 is located on the other end side of the arm 6A, and the structure 22A is around the rotation axis of one end of the arm 6A. Rotate. Thereby, the state which the bearing 7 contacted the surface of the film F is maintained.
　本実施形態によれば、フィルムＦの残径Ｄｆを精度よく検出することが可能なフィルム残径検出装置１Ａを簡素な構成で実現することができる。 According to this embodiment, the film remaining diameter detection device 1A capable of accurately detecting the remaining diameter Df of the film F can be realized with a simple configuration.
（貼合システム）
　図８は、貼合システム１００の一例を示す概略構成図である。
　図８に示す貼合システム１００は、上記実施形態のフィルム残径検出装置１を備える。
　貼合システム１００は、貼合エリアＡ１において、例えば液晶パネルや有機ＥＬパネル等の貼合対象物に、偏光板や反射防止フィルム、光拡散フィルム等の光学部材を貼合することができる。これにより、貼合システム１００は、貼合対象物及び光学部材を含んだデバイスを製造することができる。貼合システム１００は、上記のデバイスを製造する製造システムの一部又は全部であってもよい。 (Bonding system)
FIG. 8 is a schematic configuration diagram illustrating an example of the bonding system 100.
The bonding system 100 shown in FIG. 8 is provided with the film remaining diameter detection apparatus 1 of the said embodiment.
The bonding system 100 can bond optical members, such as a polarizing plate, an antireflection film, and a light-diffusion film, to bonding objects, such as a liquid crystal panel and an organic EL panel, for example in bonding area A1. Thereby, the bonding system 100 can manufacture the device containing the bonding target object and the optical member. The bonding system 100 may be a part or the whole of a manufacturing system that manufactures the above device.
　図８に示す貼合システム１００は、フィルムＦを搬送しながら、フィルムＦをハーフカットすることにより長手方向の複数の位置に切込線を形成する。この切込線によって長手方向に区画された複数のシート片を形成することができる。貼合システム１００は、複数のシート片と、液晶表示素子の製造ラインの上流から搬送されてくる各液晶パネルＰとを貼合エリアＡ１で貼合することができる。貼合システム１００の詳細な説明の前に、まずフィルムの構成例及び液晶パネルの構成例について説明する。 The bonding system 100 shown in FIG. 8 forms cut lines at a plurality of positions in the longitudinal direction by half-cutting the film F while conveying the film F. A plurality of sheet pieces partitioned in the longitudinal direction by the cut lines can be formed. Bonding system 100 can bond a plurality of sheet pieces and each liquid crystal panel P conveyed from the upstream of the production line of a liquid crystal display element in bonding area A1. Prior to detailed description of the bonding system 100, first, a configuration example of a film and a configuration example of a liquid crystal panel will be described.
　図９は、液晶パネルＰの構成例を示す平面図である。図９には、液晶層の厚み方向から平面視した液晶パネルＰが図示されている。図９に示す液晶パネルＰは、第１基板Ｐ１と、第１基板Ｐ１に対向して配置された第２基板Ｐ２と、第１基板Ｐ１と第２基板Ｐ２との間に封入された液晶層Ｐ３と、を備える。液晶パネルＰは、平面視した液晶層Ｐ３の外周の内側に収まる範囲が表示領域Ｐ４である。 FIG. 9 is a plan view showing a configuration example of the liquid crystal panel P. FIG. 9 shows the liquid crystal panel P as viewed in plan from the thickness direction of the liquid crystal layer. A liquid crystal panel P shown in FIG. 9 includes a first substrate P1, a second substrate P2 disposed to face the first substrate P1, and a liquid crystal layer sealed between the first substrate P1 and the second substrate P2. P3. In the liquid crystal panel P, a range that fits inside the outer periphery of the liquid crystal layer P3 in plan view is a display region P4.
　図１０は、フィルムＦの構成例を示す断面図である。本例のフィルムＦは、長尺の帯状であり、その長手方向に直交する断面が図１０に図示されている。以下の説明では、フィルムＦの長手方向を単に長手方向という場合がある。 FIG. 10 is a cross-sectional view showing a configuration example of the film F. The film F of this example has a long band shape, and a cross section perpendicular to the longitudinal direction is shown in FIG. In the following description, the longitudinal direction of the film F may be simply referred to as the longitudinal direction.
　図１０に示すフィルムＦは、光学部材Ｆ１と、光学部材Ｆ１の一方の面に設けられた粘着層Ｆ２と、粘着層Ｆ２を介して光学部材Ｆ１と分離可能に積層されたセパレータＦ３と、光学部材Ｆ１の他方の面に設けられた表面保護フィルムＦ４とを有する。
　本例のフィルムＦの光学部材Ｆ１は、偏光板として機能し、液晶パネルＰの表示領域Ｐ４の全域とその周辺領域とにわたって、貼合される。 The film F shown in FIG. 10 includes an optical member F1, an adhesive layer F2 provided on one surface of the optical member F1, a separator F3 that is detachably laminated with the optical member F1 via the adhesive layer F2, and an optical And a surface protective film F4 provided on the other surface of the member F1.
The optical member F1 of the film F of this example functions as a polarizing plate, and is bonded over the entire display area P4 of the liquid crystal panel P and its peripheral area.
　光学部材Ｆ１は、この光学部材Ｆ１の表面に粘着層Ｆ２を残しつつ粘着層Ｆ２からセパレータＦ３が分離された状態で、貼合対象物に粘着層Ｆ２を介して貼合される。セパレータＦ３は、粘着層Ｆ２から分離されるまでの間に、粘着層Ｆ２及び光学部材Ｆ１を保護している。表面保護フィルムＦ４は、光学部材Ｆ１とともに貼合対象物に貼合されて、光学部材Ｆ１に対して貼合対象物とは反対側に配置される。本例の表面保護フィルムＦ４は、適宜選択されるタイミングで光学部材Ｆ１から分離される。表面保護フィルムＦ４は、光学部材Ｆ１から分離されるまでの間に、光学部材Ｆ１を保護する。 The optical member F1 is bonded to the object to be bonded via the adhesive layer F2 in a state where the separator F3 is separated from the adhesive layer F2 while leaving the adhesive layer F2 on the surface of the optical member F1. The separator F3 protects the adhesive layer F2 and the optical member F1 until it is separated from the adhesive layer F2. The surface protection film F4 is bonded to the bonding object together with the optical member F1, and is disposed on the opposite side of the bonding object with respect to the optical member F1. The surface protective film F4 of this example is separated from the optical member F1 at an appropriately selected timing. The surface protective film F4 protects the optical member F1 until it is separated from the optical member F1.
　なお、光学部材Ｆ１は、表面保護フィルムＦ４を含んでいなくてもよい。また、表面保護フィルムＦ４は、光学部材Ｆ１から分離されなくてもよい。以下の説明において、フィルムＦからセパレータＦ３を除いた部分を貼合フィルムＦ５ということがある。 In addition, the optical member F1 does not need to include the surface protection film F4. Further, the surface protective film F4 may not be separated from the optical member F1. In the following description, the part which remove | eliminated the separator F3 from the film F may be called the bonding film F5.
　光学部材Ｆ１は、偏光子Ｆ６と、偏光子Ｆ６の一方の面に接着剤等で接合された第１フィルムＦ７と、偏光子Ｆ６の他方の面に接着剤等で接合された第２フィルムＦ８とを有する。第１フィルムＦ７及び第２フィルムＦ８は、例えば、偏光子Ｆ６を保護する保護フィルムである。この保護フィルムの具体例としては、トリアセチルセルロースフィルム、ＰＥＴフィルム等が挙げられる。 The optical member F1 includes a polarizer F6, a first film F7 bonded to one surface of the polarizer F6 with an adhesive or the like, and a second film F8 bonded to the other surface of the polarizer F6 with an adhesive or the like. And have. The first film F7 and the second film F8 are, for example, protective films that protect the polarizer F6. Specific examples of the protective film include a triacetyl cellulose film and a PET film.
　なお、光学部材Ｆ１は、１層の光学層からなる単層構造でもよく、複数の光学層が互いに積層された積層構造でもよい。光学層は、上記の偏光子Ｆ６の他に、位相差フィルムや輝度向上フィルム等でもよい。第１フィルムＦ７と第２フィルムＦ８の少なくとも一方は、液晶表示素子の最外面を保護するハードコート処理やアンチグレア処理を含む防眩などの効果が得られる表面処理が施されていてもよい。また、第１フィルムＦ７と第２フィルムＦ８の少なくとも一方は、設けられていなくてもよい。例えば、フィルムＦは、第１フィルムＦ７が省略されており、セパレータＦ３が光学部材Ｆ１の一方の面に粘着層Ｆ２を介して貼り合わされている構造でもよい。 Note that the optical member F1 may have a single-layer structure including one optical layer, or a stacked structure in which a plurality of optical layers are stacked on each other. The optical layer may be a retardation film or a brightness enhancement film in addition to the polarizer F6. At least one of the first film F7 and the second film F8 may be subjected to a surface treatment that provides an effect such as a hard coat treatment for protecting the outermost surface of the liquid crystal display element or an antiglare treatment including an antiglare treatment. Further, at least one of the first film F7 and the second film F8 may not be provided. For example, the film F may have a structure in which the first film F7 is omitted and the separator F3 is bonded to one surface of the optical member F1 via the adhesive layer F2.
　次に、本実施形態の貼合システム１００について、詳しく説明する。
　貼合システム１００は、フィルムＦが巻回されたロール１０３からフィルムＦを繰り出して、フィルムＦのうちの少なくともセパレータＦ３を長手方向に搬送可能な搬送装置１０１を備える。搬送装置１０１は、セパレータＦ３をキャリアとして、貼合フィルムＦ５をセパレータＦ３とともに搬送する。 Next, the bonding system 100 of this embodiment will be described in detail.
The bonding system 100 includes a transport device 101 that can feed the film F from the roll 103 around which the film F is wound, and transport at least the separator F3 of the film F in the longitudinal direction. The conveyance apparatus 101 conveys the bonding film F5 with the separator F3 by using the separator F3 as a carrier.
　搬送装置１０１は、セパレータＦ３の搬送経路（以下、単に搬送経路という）の始点に相当する供給部１０２と、搬送経路の終点に相当する巻取機１０４と、供給部１０２と巻取機１０４との間にセパレータＦ３の搬送経路を形成する複数のローラと、複数のローラの少なくとも１つに設けられた測長器１０５とを備える。以下の説明において、搬送経路上の任意の位置に対して、搬送経路の始点（供給部１０２）へ近づく側を上流側、搬送経路の終点（巻取機１０４）へ近づく側を下流側という。 The transport apparatus 101 includes a supply unit 102 corresponding to the start point of the transport path (hereinafter simply referred to as a transport path) of the separator F3, a winder 104 corresponding to the end point of the transport path, a supply unit 102, and a winder 104. Are provided with a plurality of rollers forming a conveying path of the separator F3 and a length measuring device 105 provided on at least one of the plurality of rollers. In the following description, with respect to an arbitrary position on the transport path, the side approaching the start point (supply unit 102) of the transport path is referred to as an upstream side, and the side approaching the end point (winder 104) of the transport path is referred to as a downstream side.
　本実施形態の貼合システム１００は、搬送経路に配置されて搬送中のフィルムＦに対して処理を施す複数の装置を備える。貼合システム１００は、供給部１０２よりも搬送経路の下流に配置されてフィルムＦにハーフカットを施す切断装置１０６と、貼合エリアＡ１に配置された貼合装置１０７と、貼合システム１００の各部を制御する制御装置１０８と、を備える。 The bonding system 100 according to the present embodiment includes a plurality of devices that are disposed on the transport path and perform processing on the film F being transported. The bonding system 100 is arranged downstream of the feeding path from the supply unit 102, the cutting device 106 that performs a half cut on the film F, the bonding device 107 disposed in the bonding area A1, and the bonding system 100. And a control device 108 for controlling each unit.
　搬送装置１０１の供給部１０２は、ロール１０３を保持して回転させることができ、ロール１０３から搬送経路へフィルムＦを繰り出す繰出機によって構成されている。巻取機１０４は、光学部材Ｆ１がセパレータＦ３と分離されている場合に、ほぼセパレータＦ３のみを回収する。 The supply unit 102 of the transport apparatus 101 is configured by a feeding machine that can hold and rotate the roll 103 and feeds the film F from the roll 103 to the transport path. The winder 104 collects only the separator F3 when the optical member F1 is separated from the separator F3.
　複数のローラは、フィルムＦのうちの少なくともセパレータＦ３が掛け渡されることによって、搬送経路を形成する。複数のローラは、搬送中のフィルムＦの進行方向を変化させるローラや搬送中のフィルムＦのテンションを調整可能なローラ等から選択されるローラによって構成されている。 The plurality of rollers form a transport path by spanning at least the separator F3 of the film F. The plurality of rollers is constituted by a roller selected from a roller that changes the traveling direction of the film F being conveyed, a roller that can adjust the tension of the film F being conveyed, and the like.
　測長器１０５は、測長器１０５が取り付けられたローラの回転角及び外周の長さに基づいて、フィルムＦが搬送された距離（搬送距離）を測定することができる。測長器１０５の測定結果は、制御装置１０８へ出力される。制御装置１０８は、測長器１０５の測定結果に基づいて、フィルムＦが搬送されている間の任意の時刻にフィルムＦの長手方向の各点が搬送経路上のいずれの位置に存在しているかを示すシート位置情報を生成する。 The length measuring device 105 can measure the distance (transport distance) by which the film F is transported based on the rotation angle of the roller to which the length measuring device 105 is attached and the length of the outer periphery. The measurement result of the length measuring device 105 is output to the control device 108. Based on the measurement result of the length measuring device 105, the control device 108 is located at any position on the transport path where each point in the longitudinal direction of the film F exists at any time while the film F is transported. Is generated.
　切断装置１０６は、フィルムＦの長手方向と直交する幅方向の全幅にわたって、フィルムＦの厚み方向の一部を幅方向にわたって切断（ハーフカットと呼ばれることもある）することができる。 The cutting device 106 can cut a part in the thickness direction of the film F over the entire width in the width direction orthogonal to the longitudinal direction of the film F (sometimes referred to as half-cut).
　本実施形態の貼合システム１００は、貼合フィルムＦ５と貼合する液晶パネルＰを貼合エリアＡ１へ搬送可能なパネル搬送装置１０９を備える。パネル搬送装置１０９は、液晶パネルＰを保持可能なパネル保持部１１０と、貼合システム１００へ液晶パネルＰが搬入される搬入エリアから貼合エリアＡ１までパネル保持部１１０を移動可能なパネル移動部１１１と、貼合エリアＡ１にて液晶パネルＰを所定の方向に送ることが可能なコンベアー１１２とを備える。
　本実施形態において、パネル搬送装置１０９の各部は、制御装置１０８に動作タイミング等が制御される。 The bonding system 100 of this embodiment is provided with the panel conveyance apparatus 109 which can convey liquid crystal panel P bonded with the bonding film F5 to bonding area A1. The panel transport device 109 includes a panel holding unit 110 capable of holding the liquid crystal panel P, and a panel moving unit capable of moving the panel holding unit 110 from the carry-in area where the liquid crystal panel P is carried into the bonding system 100 to the bonding area A1. 111 and a conveyor 112 capable of sending the liquid crystal panel P in a predetermined direction in the bonding area A1.
In this embodiment, the operation timing and the like of each unit of the panel transport device 109 are controlled by the control device 108.
　パネル保持部１１０は、制御装置１０８により制御され、液晶表示素子の製造ラインの上流からコンベアー１１２等によって搬入エリアへ運ばれた液晶パネルＰを真空吸着等によって着脱可能に保持する。パネル移動部１１１は、コンベアー１１２に対してパネル保持部１１０を垂直方向及び水平方向に移動可能である。パネル移動部１１１は、パネル保持部１１０に液晶パネルＰが保持されている状態で、パネル保持部１１０を搬入エリアから貼合エリアＡ１まで移動し、実質的に液晶パネルＰを貼合エリアＡ１まで移動することができる。 The panel holding unit 110 is controlled by the control device 108, and detachably holds the liquid crystal panel P transported from the upstream of the liquid crystal display element production line to the carry-in area by the conveyor 112 or the like by vacuum suction or the like. The panel moving unit 111 can move the panel holding unit 110 in the vertical direction and the horizontal direction with respect to the conveyor 112. The panel moving unit 111 moves the panel holding unit 110 from the carry-in area to the bonding area A1 while the liquid crystal panel P is held by the panel holding unit 110, and substantially moves the liquid crystal panel P to the bonding area A1. Can move.
　パネル保持部１１０は、制御装置１０８に制御されて、貼合エリアＡ１にて液晶パネルＰの吸着を解除し、液晶パネルＰをコンベアー１１２へ受け渡すことができる。コンベアー１１２は、貼合エリアＡ１まで運ばれた液晶パネルＰと、貼合エリアＡ１まで運ばれて液晶パネルＰと貼合される貼合フィルムＦ５とを互いに位置合わせするように、貼合装置１０７に液晶パネルＰを供給することができる。パネル移動部１１１及びコンベアー１１２は、切断装置１０６によって形成されたシート片が貼合エリアＡ１に運ばれてくるタイミングで液晶パネルＰが貼合エリアＡ１に到着するように、制御装置１０８により制御される。 Panel control part 110 is controlled by control device 108, can cancel adsorption of liquid crystal panel P in pasting area A1, and can deliver liquid crystal panel P to conveyor 112. The conveyor 112 is bonded to the bonding device 107 so that the liquid crystal panel P transported to the bonding area A1 and the bonding film F5 transported to the bonding area A1 and bonded to the liquid crystal panel P are aligned with each other. A liquid crystal panel P can be supplied. The panel moving unit 111 and the conveyor 112 are controlled by the control device 108 so that the liquid crystal panel P arrives at the bonding area A1 when the sheet piece formed by the cutting device 106 is conveyed to the bonding area A1. The
　本実施形態の回収機構１１２は、搬送経路に配置された先端部を有するナイフエッジ１１３と、搬送装置１０１を構成する複数のローラの１つであるガイドローラ１１４と、巻取機１０４と、搬送装置１０１を構成する複数のローラのうちでガイドローラ１１４から巻取機１０４までの搬送経路に配置されるローラと、を含んで構成されている。 The collection mechanism 112 according to the present embodiment includes a knife edge 113 having a tip disposed in a conveyance path, a guide roller 114 that is one of a plurality of rollers constituting the conveyance device 101, a winder 104, and a conveyance Among the plurality of rollers constituting the apparatus 101, the roller is disposed on the conveyance path from the guide roller 114 to the winder 104.
　本実施形態において、回収機構１１２まで搬送されたフィルムＦは、ナイフエッジ１１３の先端部へ向って搬送される。セパレータＦ３は、先端部とガイドローラ１１４とに掛け渡されて、回収機構１１２によって搬送されることにより、ナイフエッジ１１３の先端部を支点として屈曲する。一方、貼合フィルムＦ５は、貼合エリアＡ１に向けて進行する。これにより、セパレータＦ３は、長手方向における搬送経路の下流側から上流側へ向って順に貼合フィルムＦ５から分離する。このようにして、分離処理が実行される。貼合フィルムＦ５と分離されたセパレータＦ３は、ガイドローラ１１４を介して巻取機１０４へ巻き取られて回収される。このようにして、セパレータ回収処理が実行される。 In the present embodiment, the film F transported to the collection mechanism 112 is transported toward the tip of the knife edge 113. The separator F3 is stretched over the tip portion and the guide roller 114, and is conveyed by the recovery mechanism 112, so that the separator F3 is bent with the tip portion of the knife edge 113 as a fulcrum. On the other hand, the bonding film F5 proceeds toward the bonding area A1. Thereby, the separator F3 isolate | separates from the bonding film F5 in order toward the upstream from the downstream of the conveyance path | route in a longitudinal direction. In this way, the separation process is executed. The separator F3 separated from the bonding film F5 is wound around the winder 104 via the guide roller 114 and collected. In this way, the separator collection process is executed.
　本実施形態の貼合装置１０７は、ナイフエッジ１１３の先端部においてセパレータＦ３から分離した光学部材（貼合フィルムＦ５）を貼合対象物に貼合する貼合処理を、実行することができる。 The bonding apparatus 107 of this embodiment can perform the bonding process which bonds the optical member (bonding film F5) isolate | separated from the separator F3 in the front-end | tip part of the knife edge 113 to a bonding target object.
　本実施形態の貼合装置１０７は、１対の貼合ローラを備える。１対の貼合ローラは、互いの回転軸がほぼ平行になるように、配置されている。本実施形態の１対の貼合ローラは、互いに離間する方向に移動可能に設けられている。 The bonding apparatus 107 of this embodiment includes a pair of bonding rollers. The pair of laminating rollers are arranged so that their rotational axes are substantially parallel. The pair of bonding rollers of the present embodiment are provided so as to be movable in directions away from each other.
　１対の貼合ローラは、貼合処理が実行されるときに、貼合エリアＡ１の近傍に配置される。貼合エリアＡ１へ搬送された液晶パネルＰは、１対の貼合ローラの間に、コンベアー１１２によって搬送される。 The pair of bonding rollers are arranged in the vicinity of the bonding area A1 when the bonding process is executed. Liquid crystal panel P conveyed to bonding area A1 is conveyed by the conveyor 112 between a pair of bonding rollers.
　互いに貼合される液晶パネルＰ及び貼合フィルムＦ５は、貼合後に互いに接触するそれぞれの面が互いに平行かつ１対の貼合ローラの回転軸に対して平行になるように、１対の貼合ローラの間に運ばれる。１対の貼合ローラは、液晶パネルＰ及び貼合フィルムＦ５を、挟み込んで互いに押し合せて貼合する。貼合フィルムＦ５と貼合された液晶パネルＰは、液晶表示素子の製造ラインの下流へ搬送される。このようにして、貼合処理が実行される。 The liquid crystal panel P and the bonding film F5 bonded to each other have a pair of bonding so that the surfaces that contact each other after bonding are parallel to each other and parallel to the rotation axis of the pair of bonding rollers. Carried between rollers. A pair of bonding rollers sandwiches the liquid crystal panel P and the bonding film F5 and presses them together to bond them. Liquid crystal panel P bonded with bonding film F5 is conveyed downstream of the manufacturing line of a liquid crystal display element. In this way, the bonding process is executed.
　本実施形態によれば、上記実施形態のフィルム残径検出装置１を備えているので、フィルムＦの残径Ｄｆを精度よく検出することが可能な搬送装置１０１を提供することができる。また、フィルムＦの残径Ｄｆを精度よく検出することが可能な貼合システム１００を提供することができる。 According to the present embodiment, since the film remaining diameter detection device 1 of the above embodiment is provided, it is possible to provide the transport apparatus 101 that can accurately detect the remaining diameter Df of the film F. Moreover, the bonding system 100 which can detect the remaining diameter Df of the film F accurately can be provided.
　なお、本実施形態においては、搬送装置が、フィルムの残径が所定の値まで小さくなったときに、供給部にフィルムよりも残径が大きい新フィルム（第２のフィルム）を継ぐフィルム継ぎ部を備えた構成を採用することもできる。フィルム継ぎ部は、フィルムの残径が所定の値まで小さくなったときに、制御装置により新フィルムを継ぐ動作が制御される。例えば、フィルム継ぎ部としては、ターレット式のアンリール機などのオートスプライサーを用いることができる。 In the present embodiment, when the remaining diameter of the film is reduced to a predetermined value in the present embodiment, the film splicing section that joins a new film (second film) having a larger remaining diameter than the film to the supply section. It is also possible to adopt a configuration comprising The operation of joining the new film is controlled by the control device when the remaining diameter of the film is reduced to a predetermined value. For example, an auto splicer such as a turret type unreel machine can be used as the film splicing portion.
　図１１Ａ，図１１Ｂは、フィルム継ぎ部２００の一例を示す模式図である。図１１Ａはフィルム継ぎ前の状態を示す図であり、図１１Ｂはフィルム継ぎ後の状態を示す図である。
　図１１Ａに示すように、フィルム継ぎ部２００は、二本のアームが交差して形成された旋回アームを有している。この旋回アームを構成するアームの一端部には、残量が残り少なくなったフィルム２０１（以下、旧フィルムという）が取り付けられている。一方、この旋回アームを構成するアームの他端部には、未使用の新フィルム２０２が取り付けられている。
　図１１Ｂに示すように、フィルム継ぎ部２００は、旧フィルム２０１の残径が所定の値まで小さくなったときに、制御装置により旋回アームの旋回動作が制御される。旋回アームの旋回動作により、新フィルム２０２を継ぐ動作が行われる。 11A and 11B are schematic views showing an example of the film joint portion 200. FIG. 11A is a diagram illustrating a state before film splicing, and FIG. 11B is a diagram illustrating a state after film splicing.
As shown in FIG. 11A, the film joint portion 200 has a swivel arm formed by intersecting two arms. A film 201 (hereinafter referred to as an old film) with a small remaining amount is attached to one end of the arm constituting the swivel arm. On the other hand, an unused new film 202 is attached to the other end of the arm constituting the swivel arm.
As shown in FIG. 11B, when the remaining diameter of the old film 201 is reduced to a predetermined value, the turning operation of the turning arm is controlled by the control device. The operation of joining the new film 202 is performed by the turning operation of the turning arm.
　この構成によれば、旧フィルム２０１の残径が所定の値まで小さくなったときに、作業者によらずに自動で新フィルム２０２をセットすることができる。これにより、手間をかけずにフィルム継ぎを行うことができる。 According to this configuration, when the remaining diameter of the old film 201 is reduced to a predetermined value, the new film 202 can be automatically set without depending on the operator. Thereby, film splicing can be performed without taking time and effort.
　図１２は、図１１Ａ，１１Ｂとは異なるフィルム継ぎ部を備えた製造システム３００の一例を示す模式図である。
　図１２に示すように、製造システム３００は、第１巻出部３０１、第２巻出部３１１、第１フィルム継ぎ部３０３、第２フィルム継ぎ部３１３、及び搬送機構３１２を備えている。 FIG. 12 is a schematic diagram showing an example of a manufacturing system 300 provided with a film joint portion different from those shown in FIGS. 11A and 11B.
As shown in FIG. 12, the manufacturing system 300 includes a first unwinding portion 301, a second unwinding portion 311, a first film splicing portion 303, a second film splicing portion 313, and a transport mechanism 312.
　第１巻出部３０１及び第２巻出部３１１は、フィルム３１０，３２０のロールをそれぞれ保持する装置である。また、第１巻出部３０１及び第２巻出部３１１は、フィルム３１０，３２０に加えられる張力を調整可能に構成されている。第１巻出部３０１から巻き出されたフィルム３１０は、各ガイドロールを介してライン側に送られる。第２巻出部３１１から巻き出されるフィルム３２０についても同様である。 The 1st unwinding part 301 and the 2nd unwinding part 311 are apparatuses which hold | maintain the roll of the films 310 and 320, respectively. Moreover, the 1st unwinding part 301 and the 2nd unwinding part 311 are comprised so that adjustment of the tension | tensile_strength applied to the films 310 and 320 is possible. The film 310 unwound from the first unwinding section 301 is sent to the line side via each guide roll. The same applies to the film 320 unwound from the second unwinding portion 311.
　第１巻出部３０１及び第２巻出部３１１は、並設されている。第１巻出部３０１及び第２巻出部３１１は、フィルム３１０，３２０の巻芯３０１ａ，３１１ａの長手方向（水平方向）にそれぞれ移動可能である。言い換えると、第１巻出部３０１は、フィルム３１０の幅方向に移動可能であり、第２巻出部３１１は、フィルム３２０の幅方向に移動可能な構造である。 The 1st unwinding part 301 and the 2nd unwinding part 311 are arranged in parallel. The first unwinding portion 301 and the second unwinding portion 311 are movable in the longitudinal direction (horizontal direction) of the cores 301a and 311a of the films 310 and 320, respectively. In other words, the first unwinding portion 301 is movable in the width direction of the film 310, and the second unwinding portion 311 is movable in the width direction of the film 320.
　このような構成により、フィルムを交換する場合、上記水平方向に移動された巻出部に新たなフィルムのロールを設置することができる。第１巻出部３０１及び第２巻出部３１１が水平方向に移動するため、第１巻出部３０１及び第２巻出部３１１と搬送機構３１２との間に、第１巻出部３０１及び第２巻出部３１１の移動スペースを必要としない。その結果、第１巻出部３０１及び第２巻出部３１１と搬送機構３１２との間の空間を小さくすることができる。 With such a configuration, when the film is exchanged, a new roll of film can be installed on the unwinding part moved in the horizontal direction. Since the first unwinding portion 301 and the second unwinding portion 311 move in the horizontal direction, the first unwinding portion 301 and the second unwinding portion 311 and the transport mechanism 312 are arranged between the first unwinding portion 301 and the second unwinding portion 311. The movement space of the 2nd unwinding part 311 is not required. As a result, the space between the first unwinding part 301 and the second unwinding part 311 and the transport mechanism 312 can be reduced.
　図１３Ａ～１３Ｅは、製造システム３００におけるフィルム継ぎ動作を説明するための図である。
　図１３Ａに示すように、フィルム３１０の残量が減少した場合、フィルム３１０の搬送を止める。その後、吸着部３０４，３０４ａ及び切断貼合部３０５をフィルム３１０に対して垂直方向に移動させる。その後、吸着部３０４，３０４ａによってフィルム３１０を吸着固定する。この際、切断貼合部３０５では、切断支持面３０５ａがフィルム３１０に接触している。 13A to 13E are diagrams for explaining a film splicing operation in the manufacturing system 300. FIG.
As shown in FIG. 13A, when the remaining amount of the film 310 decreases, the conveyance of the film 310 is stopped. Thereafter, the suction portions 304 and 304 a and the cutting and bonding portion 305 are moved in the vertical direction with respect to the film 310. Thereafter, the film 310 is sucked and fixed by the sucking portions 304 and 304a. At this time, the cutting support surface 305 a is in contact with the film 310 in the cutting and bonding unit 305.
　その後、図１３Ｂに示すように、フィルム３１０を切断する。切断後、切断貼合部３０５をフィルム３１０から離間させ、時計回りに１／３周回転させ、フィルム３１０に向けて移動させる。これにより、図１３Ｃに示すように、フィルム３１０の切断線を覆うように貼合面３０５ｂの粘着テープ（図示略）を貼り合わせる。 Thereafter, the film 310 is cut as shown in FIG. 13B. After cutting, the cutting and bonding unit 305 is separated from the film 310, rotated clockwise by 1/3 turn, and moved toward the film 310. Thereby, as shown to FIG. 13C, the adhesive tape (not shown) of the bonding surface 305b is bonded together so that the cutting line of the film 310 may be covered.
　さらに、フィルム３２０に対しても、フィルム３１０と同様に、フィルム３２０の切断線を覆うように貼合面３１５ｂの粘着テープ（図示略）を貼り合わせる（図１３Ｄ及び図１３Ｅ参照）。 Furthermore, as with the film 310, an adhesive tape (not shown) on the bonding surface 315b is bonded to the film 320 so as to cover the cutting line of the film 320 (see FIGS. 13D and 13E).
　次に、図１３Ｆに示すように、吸着部３０４，３０４ａ及び切断貼合部３０５を吸着部３１４，３１４ａ及び切断貼合部３１５に近接させ、フィルム３１０の切断面及びフィルム３２０の切断面同士を合わせる。フィルム３１０，３２０の切断線を覆う粘着テープのうち、切断線を越えた部分（フィルム３１０，３２０に貼合していない部分）が、他方のフィルム３２０，３１０に貼合することにより、フィルム３１０，３２０が連結される。 Next, as shown to FIG. 13F, the adsorption | suction part 304,304a and the cutting | disconnection bonding part 305 are made to adjoin to the adsorption | suction part 314,314a and the cutting | disconnection bonding part 315, and the cut surface of the film 310 and the cut surface of the film 320 are mutually connected. Match. Of the adhesive tape covering the cutting line of the films 310 and 320, the part beyond the cutting line (the part not bonded to the film 310 or 320) is bonded to the other film 320 or 310, whereby the film 310 , 320 are connected.
　その後、図１３Ｇに示すように、切断貼合部３０５をフィルム３１０から離間させ、反時計回りに１／３周回転させる。そして、切断貼合部３０５をフィルム３１０に向けて移動させる。一方、切断貼合部３１５をフィルム３２０から離間させ、時計回りに１／３周回転させる。そして、切断貼合部３１５をフィルム３２０に向けて移動させる。 Then, as shown to FIG. 13G, the cutting | lamination bonding part 305 is spaced apart from the film 310, and is rotated 1/3 times counterclockwise. Then, the cutting and bonding unit 305 is moved toward the film 310. On the other hand, the cutting and bonding part 315 is separated from the film 320 and rotated clockwise by 1/3 turn. Then, the cutting and bonding unit 315 is moved toward the film 320.
　最後に、吸着部３０４，３０４ａ及び切断貼合部３０５を図１３Ａの位置に戻し、一連の工程が終了する。このようにして、図１３Ｈに示すように、フィルム３１０，３２０を連結することができる。 Finally, the adsorbing parts 304 and 304a and the cutting and bonding part 305 are returned to the positions shown in FIG. 13A, and a series of steps is completed. In this way, the films 310 and 320 can be connected as shown in FIG. 13H.
　以上、添付図面を参照しながら本発明に係る好適な実施の形態例について説明したが、本発明は係る上記実施形態に限定されないことは言うまでもない。上述した実施形態において示した各構成部材の諸形状や組み合わせ等は一例であって、本発明の主旨から逸脱しない範囲において設計要求等に基づき種々変更可能である。 The preferred embodiments according to the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments. Various shapes, combinations, and the like of the constituent members shown in the above-described embodiments are examples, and various modifications can be made based on design requirements and the like without departing from the gist of the present invention.
　上記のフィルム残径検出装置によれば、フィルムの残径を精度よく検出することが可能なフィルム残径検出装置、搬送装置および貼合システムを提供することができる。 According to the film remaining diameter detection device, it is possible to provide a film remaining diameter detection device, a transport device, and a bonding system that can accurately detect the remaining diameter of the film.
　１…フィルム残径検出装置
　２…ボビン（芯材）
　２Ｓ…露出部分
　４，６Ａ…アーム（基体）
　７…ベアリング（回転体）
　７ａ…ベアリング（回転体）の回転中心
　８…検出部
　１０…制御部
　１８…偏芯部材
　１８ａ…偏芯部材の回転中心
　２０，１０２…供給部
　２２，２２Ａ…構造体
　１００…貼合システム
　１０１…搬送装置
　１０５…測長器
　１０７…貼合装置
　２００…フィルム継ぎ部
　Ｄｆ…フィルムの残径
　Ｆ…フィルム DESCRIPTION OF SYMBOLS 1 ... Film remaining diameter detection apparatus 2 ... Bobbin (core material)
2S ... exposed part 4,6A ... arm (base)
7 ... Bearing (Rotating body)
7a: Center of rotation of bearing (rotating body) 8 ... Detection unit 10 ... Control unit 18 ... Eccentric member 18a ... Center of rotation of eccentric member 20, 102 ... Supply unit 22, 22A ... Structure 100 ... Bonding system 101 ... Conveying device 105 ... Length measuring device 107 ... Laminating device 200 ... Film joint Df ... Remaining film diameter F ... Film

Claims (9)

  1. 　芯材に巻かれた帯状の第１のフィルムの残径を検出するフィルム残径検出装置であって、
    　基体と、
    　前記基体に回転可能に接続され、前記第１のフィルムの表面に接触して前記第１のフィルムの送り出しに従って回転する回転体と、
    　前記基体に固定位置で固定され、前記固定位置から、前記第１のフィルムから露出した前記芯材の露出部分までの距離を検出する検出部と、
    　を備えるフィルム残径検出装置。     A film remaining diameter detection device for detecting a remaining diameter of a strip-shaped first film wound around a core material,
    A substrate;
    A rotating body that is rotatably connected to the base body and rotates in accordance with the feeding of the first film in contact with the surface of the first film;
    A detection unit that is fixed to the base at a fixed position, and detects a distance from the fixed position to an exposed portion of the core material exposed from the first film;
    A remaining film diameter detecting device.
  2. 　前記基体は、前記回転体が接続された部分に偏芯部材を備え；
    　前記偏芯部材を介して前記回転体が前記基体に接続され；
    　前記偏芯部材の第１の回転中心位置と前記回転体の第２の回転中心位置とは異なり；
    　前記偏芯部材を回転することにより、前記回転体の配置位置が調整される；
    請求項１に記載のフィルム残径検出装置。     The base includes an eccentric member at a portion to which the rotating body is connected;
    The rotating body is connected to the base via the eccentric member;
    The first rotation center position of the eccentric member is different from the second rotation center position of the rotating body;
    An arrangement position of the rotating body is adjusted by rotating the eccentric member;
    The film remaining diameter detection apparatus according to claim 1.
  3. 　前記検出部は、前記第１のフィルムの残径が所定の値まで小さくなったときに、前記芯材の前記露出部分との接触を検知するリミットスイッチである
    請求項１に記載のフィルム残径検出装置。     2. The remaining film diameter according to claim 1, wherein the detection unit is a limit switch that detects contact with the exposed portion of the core material when the remaining diameter of the first film is reduced to a predetermined value. Detection device.
  4. 　前記検出部はレーザー変位センサーである
    請求項１に記載のフィルム残径検出装置。     The film remaining diameter detection device according to claim 1, wherein the detection unit is a laser displacement sensor.
  5. 　前記基体の第1の端部は回転可能になっており；
    　前記基体の第２の端部には前記回転体が配置され；
    　前記基体、前記回転体、及び前記検出部を含む構造体の重心が前記基体の前記第１の端部よりも前記第２の端部近くに配置され；
    　前記構造体が前記基体の前記第１の端部の回転軸回りに回転することにより、前記回転体を前記第１のフィルムの表面に接触した状態が維持される；
    請求項１に記載のフィルム残径検出装置。     The first end of the substrate is rotatable;
    The rotating body is disposed at a second end of the substrate;
    The center of gravity of the structure including the base, the rotating body, and the detection unit is disposed closer to the second end than the first end of the base;
    The structure is rotated around the rotation axis of the first end of the base, thereby maintaining the state in which the rotating body is in contact with the surface of the first film;
    The film remaining diameter detection apparatus according to claim 1.
  6. 　前記第１のフィルムを巻き出して供給する供給部と；
    　前記第１のフィルムの残径を検出する請求項１～５のいずれか一項に記載のフィルム残径検出装置と；を備える
    搬送装置。     A supply section for unwinding and supplying the first film;
    A film remaining diameter detecting device according to any one of claims 1 to 5, which detects the remaining diameter of the first film.
  7. 　前記供給部から供給される前記第１のフィルムの搬送経路に設けられ、前記第１のフィルムの送り出し量を測定する測長器と；
    　前記測長器による測定結果に基づいて、前記第１のフィルムの残径が所定の値となったときに、前記回転体が前記第１のフィルムの前記表面に接触するように前記基体の回転動作を制御する制御部と；をさらに備える
    請求項６に記載の搬送装置。     A length measuring device that is provided in a conveyance path of the first film supplied from the supply unit and measures a feeding amount of the first film;
    Based on the measurement result by the length measuring device, when the remaining diameter of the first film reaches a predetermined value, the rotating body rotates so that the rotating body contacts the surface of the first film. The transport apparatus according to claim 6, further comprising: a control unit that controls the operation.
  8. 　前記第１のフィルムの残径が前記所定の値まで小さくなったときに、前記供給部に前記第１のフィルムよりも残径が大きい第２のフィルムを継ぐフィルム継ぎ部を備える
    請求項６に記載の搬送装置。     The film splicing part that joins a second film having a larger remaining diameter than the first film to the supply part when the remaining diameter of the first film is reduced to the predetermined value. The conveying apparatus as described.
  9. 　請求項６に記載の搬送装置と、
    　前記供給部から供給された前記第１のフィルムを貼合対象物に貼合する貼合装置と、
    　を備えることを特徴とする貼合システム。     A transport apparatus according to claim 6;
    A bonding apparatus for bonding the first film supplied from the supply unit to a bonding object;
    A bonding system comprising:
PCT/JP2012/061646 2011-06-24 2012-05-07 Device for detecting diameter of remaining film, conveyance device, and pasting system WO2012176552A1 (en)

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JP2011-140510 2011-06-24
JP2011140510A JP2013006664A (en) 2011-06-24 2011-06-24 Device for detecting diameter of remaining film, conveyance device, and pasting system

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JPS6076317A (en) * 1983-10-03 1985-04-30 Kureha Chem Ind Co Ltd Detector for residual length of rolled film
JPH0342454A (en) * 1989-07-05 1991-02-22 G D Spa Device for monitoring wear of material unwound from roll
JPH05105293A (en) * 1991-10-14 1993-04-27 Minolta Camera Co Ltd Remainder detection device of take-up roll material
JPH08127167A (en) * 1994-11-01 1996-05-21 Arutetsuku Kk Apparatus and method for detecting end of rolled sheet

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JP3506682B2 (en) * 2001-08-28 2004-03-15 株式会社 日立インダストリイズ Automatic film changer for laminator
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Publication number Priority date Publication date Assignee Title
JPS6076317A (en) * 1983-10-03 1985-04-30 Kureha Chem Ind Co Ltd Detector for residual length of rolled film
JPH0342454A (en) * 1989-07-05 1991-02-22 G D Spa Device for monitoring wear of material unwound from roll
JPH05105293A (en) * 1991-10-14 1993-04-27 Minolta Camera Co Ltd Remainder detection device of take-up roll material
JPH08127167A (en) * 1994-11-01 1996-05-21 Arutetsuku Kk Apparatus and method for detecting end of rolled sheet

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