EP2067724A1 - Automatische folienwickelvorrichtung, schlitz- und wickelsystem und verfahren zur herstellung einer aufgerollten folie - Google Patents

Automatische folienwickelvorrichtung, schlitz- und wickelsystem und verfahren zur herstellung einer aufgerollten folie Download PDF

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Publication number
EP2067724A1
EP2067724A1 EP07828516A EP07828516A EP2067724A1 EP 2067724 A1 EP2067724 A1 EP 2067724A1 EP 07828516 A EP07828516 A EP 07828516A EP 07828516 A EP07828516 A EP 07828516A EP 2067724 A1 EP2067724 A1 EP 2067724A1
Authority
EP
European Patent Office
Prior art keywords
film
winding
roller
shaft
automatic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07828516A
Other languages
English (en)
French (fr)
Other versions
EP2067724A4 (de
Inventor
Kei Arimitsu
Toshio Ishikawa
Kenji Ogawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Showa Denko Materials Co ltd
Original Assignee
Hitachi Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Publication of EP2067724A1 publication Critical patent/EP2067724A1/de
Publication of EP2067724A4 publication Critical patent/EP2067724A4/de
Withdrawn legal-status Critical Current

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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
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2207—Changing the web roll in winding mechanisms or in connection with winding operations the web roll being driven by a winding mechanism of the centre or core drive type
    • B65H19/2215—Turret-type with two roll supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/28—Attaching the leading end of the web to the replacement web-roll core or spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/26—Cutting-off the web running to the wound web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/30—Lifting, transporting, or removing the web roll; Inserting core
    • B65H19/305—Inserting core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/048—Registering, tensioning, smoothing or guiding webs longitudinally by positively actuated movable bars or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/02—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with longitudinal slitters or perforators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/41419—Starting winding process
    • B65H2301/41422—Starting winding process involving mechanical means
    • B65H2301/414222—Starting winding process involving mechanical means fixed to frame, tucking leading edge to core, e.g. by brush
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/41419—Starting winding process
    • B65H2301/41425—Starting winding process involving blowing means, e.g. air blast
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B65H2301/41486—Winding slitting winding on two or more winding shafts simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B65H2301/41487—Winding slitting trimming edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/418—Changing web roll
    • B65H2301/41829—Changing web roll positioning the core, e.g. in axial direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/40—Shafts, cylinders, drums, spindles
    • B65H2404/43—Rider roll construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/50—Surface of the elements in contact with the forwarded or guided material
    • B65H2404/53—Surface of the elements in contact with the forwarded or guided material with particular mechanical, physical properties
    • B65H2404/539—Surface of the elements in contact with the forwarded or guided material with particular mechanical, physical properties other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/50—Surface of the elements in contact with the forwarded or guided material
    • B65H2404/53—Surface of the elements in contact with the forwarded or guided material with particular mechanical, physical properties
    • B65H2404/539—Surface of the elements in contact with the forwarded or guided material with particular mechanical, physical properties other
    • B65H2404/5391—Surface of the elements in contact with the forwarded or guided material with particular mechanical, physical properties other adhesive properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/23—Winding machines
    • B65H2408/231—Turret winders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/23—Winding machines
    • B65H2408/231—Turret winders
    • B65H2408/2315—Turret winders specified by number of arms
    • B65H2408/23152—Turret winders specified by number of arms with two arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/175—Plastic
    • B65H2701/1752—Polymer film

Definitions

  • a plurality of films obtained by subjecting a long film to multiple slitting or a wide single film is wound around a winding core in a specified product length.
  • additional operations include a lot of troublesome tasks such as installation of a winding core to a winding shaft, winding, cutting after the winding and removal of a rolled film from the winding shaft. Manual operation of these complicated works takes a prolonged period of time, and makes winding at an accurate position difficult.
  • a film winding apparatus does not have a turret mechanism, the above-mentioned additional tasks are performed while the winding apparatus is in the idling state. Under such circumstances, various turret-type automatic film winding apparatuses have heretofore been proposed to allow the additional tasks to be performed quickly and accurately.
  • Patent Document 1 discloses a turret-type automatic film cutting and winding apparatus.
  • This automatic cutting and winding apparatus is provided with an electrostatic charge-imparting means, a cutter (saw blade) and a pair of pressing means which enter the front and back of the cutter.
  • Patent Document 2 discloses a technology of an end-free winding apparatus for sheets. This end-free winding apparatus is provided with an endless belt, a pressing roller, and a front guide part or the like.
  • Patent Document 3 discloses a technology of a turret winding apparatus.
  • This turret winding apparatus has a plurality of winding shafts with a cantilever structure and a fixed beam. The fixing and supporting member of this fixed beam supports the winding shaft at the winding operation position, thus allowing this turret winding apparatus to have an inboard structure.
  • Patent Document 1 the technology using a saw blade as disclosed in Patent Document 1 has a problem that the cut surface cannot be linear.
  • the cutter when cross cutting is performed by using a cutter such as a razor, the cutter is normally moved only in the film width direction.
  • This cutting method has a problem that a film is cut curvedly at a position where the cutting blade is entered or removed.
  • a belt or a plurality of rollers are used. By using them, a film which has once become in the free state is caught between a core (winding core) and a belt. Therefore, unless the position of the film in the free state is stable, a problem arises in which the film of the first layer tends to shift during film winding.
  • the object of the invention is to further improve winding quality and establish a highly reliable winding technology by reasonably solving the disadvantages associated with the conventional technologies, as well as to provide an automatic film winding apparatus and a slitting and winding system which can be reduced in size and arranged in multiple stages, and a method for producing a rolled film.
  • the film is effectively prevented from being slackened between the position of pressing by means of the touch roller and the front end of the film.
  • the film can be wound in the state where it is closely adhered to the predetermined position of the winding core, whereby the winding quality is significantly improved.
  • the "front end” means not only the front end surface of the film which has been cut but also the area including the vicinity of the front end surface.
  • the "winding quality” means a disadvantage that the winding start position (front end portion) is shifted in the direction to the shaft core of the winding shaft (hereinafter appropriately referred to as the "bad start”), wrinkles in the film or folded film corners and the like which occur during film winding.
  • the automatic film winding apparatus be capable of removing the rolled film from the first winding shaft which is at the waiting position and setting the winding core to the first winding shaft while winding a film by the second winding shaft. Due to such a configuration, removal of the rolled film or installation of a new winding core can be performed during film winding operation. As a result, operation rate of the apparatus can be improved.
  • the automatic film winding apparatus have a configuration in which the touch roller has arms for a touch roller which rotatably support the touch roller, the cutter has a pair of arms for a cutter which rotatably supports the cutter, the film affixing roller has a pair of arms for a film affixing roller which rotatably supports the film affixing roller, the pair of arms for a film affixing roller are located between the pair of arms for the cutter, and the two or more arms for a touch roller are located between the pair of arms for a film affixing roller. Due to such a configuration, the apparatus can have a reduced size since the arms do not interfere with each other.
  • the apparatus have an air bleeding mechanism. Due to such a configuration, a disadvantage that air enters between the films can be prevented. As a result, the apparatus can be reduced in size.
  • the automatic film winding apparatus have a film carrier roller for supplying the film to the winding shaft. Due to such a configuration, the film can be carried smoothly.
  • the automatic film winding apparatus have a holding means which holds the film by pressing the film to the film carrier roller. Due to such a configuration, occurrence of any further bad starts can be suppressed reliably.
  • the holding means be a nip bar for pressing the film to the film carrier roller. Due to such a configuration, the film can be held reliably and the apparatus can have a simple structure.
  • the angle of the contact surface of the film carrier roller and the film be 90° to 160°. Due to such a configuration, the film carrier roller can be rotated smoothly with the film.
  • the film contact surface of the film carrier roller be formed of a porous material or a slightly adhesive material. Due to such a configuration, it is possible to eliminate weaving at the end surface of a wound product which is caused by the shift of the film in the lateral direction.
  • the automatic film winding apparatus be provided with a winding core positioning mechanism for positioning the winding core in the width direction of the film. Due to such a configuration, it is possible to perform positioning of the winding core accurately within a short period of time. As a result, productivity or quality (center winding accuracy) can be improved.
  • the "center winding accuracy” means the degree of coincidence of the center of the winding core in the central axis direction thereof and the center of the widthwise direction of the rolled film.
  • the winding core positioning mechanism be provided with a bar material mounted such that it can move freely between the positioning position and the waiting position and a stopper movably mounted on the bar material. Due to such a configuration, the automatic winding apparatus can be operated easily and can have a simple structure.
  • the automatic winding apparatus have a film tension control system. Due to such a configuration, the tension of the film can be adjusted easily.
  • the cutter be provided with a guide member and a cutting blade which moves along the guide member and that the film which has been imparted with tension by the abutment of the guide member be cut by the cutting blade. Due to such a configuration, a disadvantage that the film is cut curvedly at the side where the cutting blade is entered or removed can be eliminated, and linear cutting can be realized. In addition, a trouble such as adherence of resist chips can be eliminated.
  • the slit winding system of the invention is provided with a slitter which cuts a film into a predetermined width and the automatic film winding apparatus according to any one of the above-mentioned claims 1 to 20 for winding up the film which has been supplied from the slitter.
  • the invention is effective as the slit winding system, and can improve both quality and productivity.
  • At least one of the slitter and the automatic winding apparatus be movably provided. Due to such a configuration, for example, during maintenance, the automatic film winding apparatus can be moved easily. In addition, during production, it is possible to shorten the distance between the slitter and the automatic film winding apparatus. Due to the reduction in distance, the carrying span is reduced, thus eliminating defects such as step-like irregularities of a rolled film.
  • the "step-like irregularities" means unevenness on the end surface of a rolled film in the form of steps or convexes and concaves.
  • the method for producing a rolled film of the invention in which a film is wound around a winding shaft, comprises:
  • the method for producing a rolled film of the invention in which a film is wound around a plurality of winding shafts by turns, comprises:
  • the second winding shaft formed of a friction shaft rotate in the winding direction with a torque sufficient to remove slackening of the film which has been pressed by the touch roller in the state where the film affixing roller is pressing the front end of the film. Provision of this step leads to further improvement in quality.
  • the method for producing a rolled film of the invention be provided with a step in which the touch roller and the film affixing roller stop pressing the film when the carrier roller stops holding the film, the second winding shafts rotates in the winding direction at a predetermined winding torque, the film is wound around the winding core of the second winding shaft, and the front end of the film approaches an overlapping position, and a step in which the touch roller presses the film to the winding core of the second winding shaft and the second winding shaft rotates in the winding direction at a predetermined winding up torque when the front end of the film passes the overlapping position. Due to the provision of this step, occurrence of a disadvantage such as a bad start can be prevented more reliably.
  • the slit winding system and the method for producing a rolled film of the invention not only the winding quality can be improved but also the apparatus can be reduced in size and can be arranged in multiple stages.
  • FIG. 1 shows a schematic cross sectional view of the slit winding system according to one embodiment of the invention as viewed from the lateral direction.
  • a slit winding system 1 is formed of an automatic film winding apparatus 2 and a slitter 3.
  • the automatic film winding apparatus 2 is connected to a web feeding apparatus 4.
  • the web feeding apparatus 4 has a feeding shaft 41 on which a web 11 is installed, and supplies a film 10 to the slitter 3.
  • the slitter 3 has a slitting part 31 which cuts the film 10 which has been supplied from the web feeding apparatus 4, and an edge winding part 32 which winds the edge portion of the film 10. This slitter 3 supplies the films 10 which have been cut to the automatic winding apparatus 2.
  • This automatic film winding apparatus 2 simultaneously winds the films 10 which have been cut and supplied from the slitter 3 (two films in this embodiment).
  • the automatic film winding apparatus 2 and the slitter 3 are separately provided.
  • the invention is not limited to this configuration.
  • the film automatic winding apparatus 2 may be incorporated into the slitter 3 as part of the slitter 3.
  • the automatic film winding apparatus 2 of this embodiment has the two-stage winding mechanisms which are provided in the vertical direction.
  • the automatic film winding apparatus 2 has, on the both sides thereof, a motor for driving, a gear box, a pulley or the like for driving are provided to allow the first winding shaft 21, the second winding shaft 22 and the turret 20 to rotate.
  • a display panel 202, an operation panel 203, and a control device (not shown) for controlling each of the driving means are provided.
  • the switching bearing 213 stops supporting the left end of each of the first winding shaft 21 or the second winding shaft 22 when these shafts are caused to rotate in the front direction. Due to such a configuration, removal of the rolled film 10 or the installation of a new winding core 12 can be performed easily during the film winding operation. As a result, the operation rate of the apparatus can be improved.
  • two winding shafts are provided in the turret.
  • the number of the winding shafts is, however, not limited to two. Three or more winding shafts may be provided, for example. If four winding shafts are provided in the turret, the turret is rotated by 90°. Due to this rotation, each winding shaft moves, and the winding shaft, which has moved to the film winding position, winds up the film. As a result, the film can be wound continuously.
  • the turret cannot be necessarily provided if only one winding shaft is used.
  • the roller 251 is a free-roller having a length of L, with the top surface being formed of a resin, rubber or the like.
  • This roller 251 is rotatably secured to the front end of the opposing pair of urging arms 252.
  • This film affixing roller 25 presses the cut film 10 to the winding core 12 of the second winding shaft 22 at a position on the downstream side of the touch roller 23, for example.
  • the film affixing roller 25 moves to the front end of the film 10 which has been cut, while winding the film 10 which has been cut around the winding core 12 with the film being pressed.
  • the roots of the pair of the arms 232, which are in the opposing state, are fixed to the rotating shaft 233 through a key (not shown).
  • the roller 231 is a free-roller with the top surface being formed of a resin, rubber or the like. This roller 231 is rotatably secured to the front end of the opposing pair of arms 232. The length of the roller 231 corresponds to the width of the film 10 to be wound. In addition, the roller 231 is installed at a position corresponding to the film 10 to be wound by the arm 232.
  • the position of the arm 232 is adjusted by means of the roller 231 having a length corresponding to the width of the film.
  • the length of the roller 231 can be appropriately adjusted according to the width of the film 10 to be wound.
  • the length of the roller 231 may be slightly longer or shorter than the width of the film 10. In respect of air bleeding, it is preferred that the length of the roller 231 be slightly longer than the width of the film 10. in respect of prevention of weaving, it is preferred that the length of the roller 231 be slightly shorter than the width of the film 10. That is, the length of the roller 231 can be appropriately selected according to the type or thickness of the film 10 to be wound.
  • the near roll winding method in which winding is performed with the roller being in the vicinity of, not in contact with, the film or the touch roll winding method in which winding is performed with the touch roller 23 being completely in contact with the film.
  • the film 10 has no problems in its properties, it is preferable to select the touch rolling method in which the touch roller 23 is used since it is an effective way to prevent air entertainment.
  • the touch roller 23 is particularly preferable since, in addition to air bleeding, the touch roller 23 has a function of pressing the film, and is capable of preventing the film 10 from shifting during cutting.
  • the front end of the driving arm 247 is connected to an air cylinder for rotating (not shown).
  • the pair of arms 245 is a plate with the front end being curved. In the opposing state, the roots thereof are fixed to the rotating shaft 246.
  • the rodless cylinder 242 is installed on the front end of the arms 245 through a supporting member.
  • a connecting member is installed on the front end of each of the arms 245 through the supporting member.
  • Two guide bars 244 are installed on each of the connecting member in such a manner that they are opposing with a prescribed interval.
  • a cutting blade 241 is installed on the rodless cylinder 242 through the holding member 243.
  • This cutting blade 241 can cut the film 10 having a maximum width dimension of L. Furthermore, the cutting blade 241 moves through a predetermined gap between the two guide bars 244. That is, when the arms 245 are rotated, the two guide bars 244 abut the film 10, and by this abutment, the film 10 is imparted with an appropriate tension.
  • the cutting blade 241 cuts the film 10 which has been imparted with an appropriate tension. By doing this, a trouble can be avoided that the film is cut in a curved manner at a position where the blade 241 is entered or removed, thus realizing linear cutting. In addition, a trouble such as adherence of resist chips can be avoided.
  • This cutter 24 provided with a guide cuts the film 10 which has been hung on the first winding shaft 21 and the second winding shaft 22 between the first winding shaft 21 and the second winding shaft 22.
  • the cutter 24 provided with a guide has a pair of arms 245 which are rotatably supported, and the distance between the pair of arms is taken as L 0 (see FIG. 5 ).
  • the film affixing roller 25 has a pair of arms 253 which are rotatably supported, and the maximum external dimension of the arms 253 including the air cylinder 254 is L 1 (see FIG. 3 ), and L 0 is larger than L 1 . Therefore, the pair of arms 253 of the film affixing roller 25 is accommodated between the pair of arms 245 of the cutter 24 provided with a guide. The distance between the arms 253 is L 2 (see FIG.
  • the automatic film winding apparatus 2 of this embodiment can be reduced in size since the arms 245, 253 and 232 do not interfere with each other.
  • the stopper 291 is fixed to the sliding bar 293 when the knob 292 is tightened, and becomes slidable when the knob 292 is loosened.
  • the both ends of the sliding bar 293 are connected to the bearing 295 through the connecting plate 294.
  • Each of the pair of the bearings 295 is screwed to the pivotable support plate 201.
  • the bearing 295 has a rotating angle of about 180°, and can be freely rotated within this range. An operator rotates the sliding bar 293 between the waiting position (the position which is obliquely below as viewed from the front side) and the positioning position (the position which is obliquely above as viewed from the back side).
  • the stopper 291 of the winding core positioning means 29 is normally in the waiting position, and avoids a trouble that it contacts the rolled film 10.
  • the stopper 291 is rotated to the positioning position, where the end surface of the winding core 12 abuts the stopper 291, whereby the winding core 12 can be positioned.
  • the abutting surface of the stopper 291 is set at a position which is away from the center of the shaft with a distance of L 3 (see FIG. 2 ).
  • the winding core positioning means 29 By allowing the winding core positioning means 29 to have the above-mentioned configuration, it can be operated easily and can have a simplified structure. As a result, the manufacturing cost can be reduced.
  • an operator sets the winding core 12.
  • the configuration is, however, not limited to this.
  • the winding core 12 may be automatically set at a predetermined position above the winding shafts 21 and 22 by means of a winding core positioning mechanism (not shown) .
  • the automatic film winding apparatus have a film carrier roller which supplies the film 10 to the winding shafts 21 and 22. Due to the provision of the film carrier roller, the film 10 can be carried smoothly.
  • the automatic film winding apparatus 2 of this embodiment is provided with a first film carrier roller 27 and a second film carrier roller 28 for each of the pair of the turrets 20.
  • the first film carrier roller 27 and the second film carrier roller 28 supply the film 10 to the first winding shaft 21 or the second winding shaft 22.
  • the journal diameter of the film carrier rollers 27 and 28 is 10 to 25 mm.
  • the journal diameter means the axial diameter of the roller.
  • the optimum journal diameter is about 10 to 25 mm for decreasing the rotation resistance with the bearing.
  • journal diameter is too large, the rotation resistance increases, making the rotation of a free roller difficult. If the journal diameter is too small, the roller has an insufficient strength. More preferably, the journal diameter is about 10 to 15 mm. In this embodiment, a journal diameter of 15 mm is selected. The journal diameter is not limited to this range. Normally, a slide caliper is used to measure the journal diameter.
  • the film contact surface of the film carrier rollers 27 and 28 be formed of a porous material or a slightly adhesive material.
  • a porous material By using a porous material, weaving of the end surface of a rolled film product (step-like irregularities) caused by lateral shift of the film due to the air which has entered between the film 10 and the film carrier rollers 27 and 28 can be effectively prevented.
  • the porous material include foaming materials. Of them, rubber materials are preferable since they do not get scratches, they exhibit excellent durability or for other reasons.
  • a slightly adhesive rubber material in order not to adversely affect the holding tension (winding tightness) of a wound product.
  • a rubber material having a friction coefficient of 0.7 to 0.8 and a rubber hardness of 40 to 80° is preferable.
  • a nip bar 26 is provided below the first film carrier roller 27.
  • This nip bar 26 is a metal bar of which the top surface is formed of a resin or rubber, and has almost the same length as that of the first film carrier roller 27.
  • the nip bar 26 reciprocates up and down by a reciprocating driving means such as an air cylinder.
  • the nip bar 26, when moved upwardly, presses the film 10 which has stopped to the first film carrier roller 27 and holds so that it does not move. Due to the provision of the nip bar 26, the film 10 which has stopped is effectively prevented from shifting in the lateral direction, ensuring further suppression of a bad start.
  • the film 10 can be held reliably.
  • manufacturing cost can be reduced.
  • FIG. 8 is a schematic cross sectional view of the essential parts of the automatic film winding apparatus according to one embodiment of the invention as viewed from the lateral direction for explaining each operation.
  • the automatic film winding apparatus 2 when a predetermined amount of the film 10 is wound around the winding core 12 of the first winding shaft 21, the first winding shaft 21 stops rotating (Step S1).
  • the first winding shaft 21 and the second winding shaft 22 are not rotating, the touch roller 23 is pressing, the film affixing roller 25, the cutter 24 provided with a guide and the nip bar 26 are waiting, and the winding core positioning means 29 is at the positioning position.
  • the first winding shaft 21 is at the film winding position and the second winding shaft 22 is at the waiting position.
  • the touch roller 23 presses the film 10 to be wound around the winding core 12. As a result, the touch roller 23 functions as an air bleeding mechanism between the films 10 to be wound. If the first winding shaft 21 stops rotating, the touch roller 23 keeps on pressing.
  • the contact angle (film holding angle) of the carrier rollers 27 and 28 and the film 10 is preferably 90° to 160°. If the holding angle is smaller than 90°, the rotation of the carrier roller becomes insufficient, causing the film to meander. When the holding angle is larger than 160°, film tension becomes too strong, causing difficulty in the adjustment of the film tension on the winding shaft.
  • a pressure control mechanism expands the pressure applied on the winding core 12, whereby a tension suitable for film winding can be ensured.
  • Step S2 the film 10 which is hung on the first film carrier roller 27 is held by the nip bar 26. Subsequently, the touch roller 23 rotates upward, and the turret 20 rotates by 180°, and the film 10 is hung on the second winding shaft 22 (Step S2). At this time, the first winding shaft 21 moves to the waiting position and the second winding shaft 22 moves to the winding position.
  • the first winding shaft 21 and the second winding shaft 22 are not rotating, the nip bar 26 is holding, and the touch roller 23, the film affixing roller 25, the cutter 24 provided with a guide and the winding core positioning means 29 are waiting. Due to the holding of the film 10 by the nip bar 26, occurrence of a bad start can be prevented more reliably.
  • an operator applies an adhesive to part of the surface of the winding core 12 of the second winding shaft 22, positions this winding core 12 on the second winding shaft 22 by means of the winding core positioning means 29, and the winding core positioning means 29 are rotated to the waiting position.
  • the turret 20 rotates, the winding core 12 of the first winding shaft 21 is returned in the counterclockwise direction. However, due to the holding torque of the expanded packing 211, the film 10 is in the tensed state. That is, it keeps the tension suitable for film cutting.
  • the touch roller 23 rotates downward and presses the film 10 to the winding core 12 of the second winding shaft 22.
  • the cutter 24 provided with a guide rotates downward, and cuts the film 10 linearly between the first winding shaft 21 and the second winding shaft 22 (Step S3).
  • the first winding shaft 21 and the second winding shaft 22 are not rotating, the nip bar 26 is holding, the touch roller 23 is pressing, the cutter 24 provided with a guide is cutting, and the film affixing roller 25 and the winding core positioning means 29 are waiting.
  • the first winding shaft 21 stops rotating.
  • the configuration is, however, not limited thereto.
  • the first winding shaft 21 when cutting the film 10, the first winding shaft 21 may be rotated at a speed of 15 m/min or less (a small rpm corresponding to the winding speed of 15 m/min or less). By doing this, the tension of the cut surface of the film can be ensured.
  • the cutter 24 provided with a guide rotates upward, the film affixing roller 25 rotates downward, and presses the film 10 which has been cut to the winding core 12 of the second winding shaft 22 at a position on the downstream side of the touch roller 23(Step S4).
  • the first winding shaft 21 and the second winding shaft 22 are not rotating, the nip bar 26 is holding, the touch roller 23 is pressing, the film affixing roller 25 is pressing, and the cutter 24 provided with a guide and the winding core positioning means 29 are waiting.
  • the film affixing roller 25 further rotates downward, and moves to the front end of the film 10 which has been cut while winding the film 10 around the winding core 12 with the film 10 being pressed to the winding core 12 (Step S5).
  • the first winding shaft 21 and the second winding shaft 22 are not rotating, the nip bar 26 is holding, the touch roller 23 is pressing, the film affixing roller 25 is pressing, and the cutter 24 provided with a guide and the winding core positioning means 29 are waiting.
  • the front end of the film 10 which has been cut is away from the film cutting position within a range of several millimeters below the decimal point to several tens of millimeters.
  • the roller 251 moves by about 100° with the film 10 being pressed to the winding core 12, and maintains its pressed state (this roller 251 is indicated by a solid line).
  • this roller 251 is indicated by a solid line
  • the film 10 between the roller 251 indicated by a dotted line and the roller 251 indicated by a solid line is forcibly adhered to the winding core 12 by the roller 251. That is, slackening of the film 10 between the pressing position by the roller 231 of the touch roller 23 and the front end of the film 10 which has been cut can be effectively prevented, whereby the film 10 can be wound while maintaining the state in which the film 10 is adhered to a predetermined position of the winding core. As a result, troubles such as a bad start, wrinkles of the film or folded film corners which occur during film winding can be reasonably prevented.
  • the distance (angle) for which the roller 251 moves with the film 10 being pressed to the winding core 12 is not limited to 100° as mentioned above, and can be within the range of about 60° to 130° according to the kind (adhesive strength) of the film or the like.
  • the angle at which the film 10 is wound around the winding core 12 (winding angle) be within the range of 30° to 90°, more preferably, a larger angle within the above-mentioned range.
  • winding angle refers to an angle formed by the position right above the winding core 12 and the position at which the film 10 to be supplied is brought into contact with the winding core 12.
  • Step S6 while keeping the state where the film affixing roller 25 is pressing the front end of the film 10 which is being pressed to the winding core 12 by the film affixing roller 25, the second winding shaft 22, which is a friction shaft, rotates in the winding direction at a predetermined torque which is enough to remove slackening (Step S6).
  • the first winding shaft 21 is not rotating
  • the second winding shaft 22 is rotating at a low speed
  • the nip bar 26 is holding
  • the touch roller 23 is pressing
  • the film affixing roller 25 is pressing
  • the cutter 24 with a guide and the winding core positioning means 29 are waiting.
  • slackening can be completely removed by a low-speed operation at the above-mentioned predetermined torque which is sufficient to remove the slackening. That is, as shown in FIG. 10(a) , for example, a slight degree of slackening may remain between the roller 231 of the touch roller 23 and the roller 251 of the film affixing roller 25. In this case, such slackening can be completely removed by allowing the winding core 12 to rotate by a small angle (from the X position to the X 1 position) according to the amount of slackening without allowing the film 10 on the upstream side of the touch roller 23 to advance.
  • the low-speed rotation of the second winding shaft 22 in the step S6 is normally performed at an rpm corresponding to a speed which is 50% or less of the film winding speed. Specifically, when the film winding speed is 50 m/min, the second winding shaft 22 rotates at a small rpm which corresponds to the winding speed of 25 m/min or less.
  • the nip bar 26 moves downward, and the first film carrier roller 27 stops holding the film 10.
  • the second winding shaft 22 rotates at a low speed in the winding direction at a predetermined winding torque, and the film 10 is wound around the winding core 12 of the second winding shaft 22.
  • the touch roller 23 and the film affixing roller 25 rotate upward, and stop pressing the film 10 (Step S7).
  • the first winding shaft 21 is not rotating, the second winding shaft 22 is rotating at a low speed, and the nib bar 26, the touch roller 23, the film affixing roller 25, the cutter 24 with a guide and the winding core positioning means 29 are waiting.
  • the second winding shaft 22 rotates half to several times at the above-mentioned low speed, whereby the films 10 overlap one on another accurately.
  • the low-speed rotation of the second winding shaft 22 in the step S7 is normally performed at an rpm corresponding to a speed which is 50% or less of the film winding speed. Specifically, when the film winding speed is 50 m/min, the second winding shaft 22 rotates at a low speed with a small rpm which corresponds to the winding speed of 25 m/min or less.
  • Step S8 when the front end of the film 10 which has been cut passes the position at which the films 10 overlap one on another, the touch roller 23 rotates downward again, and presses the film 10 to the winding core 12 of the second winding shaft 22. Subsequently, the second winding shaft 22 rotates in the winding direction at a predetermined winding up torque (Step S8). At this time, the first winding shaft 21 is not rotating, the second winding shaft 22 is rotating at a predetermined winding speed, the touch roller 23 is pressing, and the nip bar 26, the film affixing roller 25, the cutter 24 provided with a guide and the winding core positioning means 29 are waiting.
  • Step S9 an operator removes from the first winding shaft 21 the winding core 12 around which the film 10 has been wound in advance from the first winding shaft 21, and then inserts a new winding core 12 into the first winding shaft 21 (Step S9).
  • the automatic film winding apparatus 2 of this embodiment slackening of the film 10 between the pressing position by the touch roller 23 and the front end of the film 10 which has been cut is effectively suppressed, and therefore, the film 10 can be wound with the film 10 being closely adhered to the predetermined position of the winding core 12.
  • troubles such as a bad start, wrinkles of the film or folded film corners which occur during film winding can be prevented, whereby winding quality can be significantly improved.
  • the invention is effective also as the invention of the slit winding system 1. That is, due to the provision of the automatic film winding apparatus 2, both quality and productivity can be improved.
  • the first winding shaft 21 stops rotating when a predetermined amount of the film 10 is wound around the winding core 12 of the first winding shaft 21 (Step S1).
  • the nip bar 26 allows the film 10 which has stopped to be held by the first film carrier roller 27, the touch roller 23 stops pressing the film 10, the turret 20 rotates by 180° to allow the film 10 to be hung on the winding core 12 of the second winding shaft 22 (Step S2).
  • the touch roller 23 presses the film 10 to the winding core 12 of the second winding shaft 22, and the cutter 24 provided with a guide cuts the film 10 (Step S3).
  • the film affixing roller 25 presses the film 10 which has been cut to the winding core 12 of the second winding shaft 22 (Step S4). Subsequently, the film affixing roller 25 moves to the front end of the film 10 which has been cut while winding the film 10 with the film 10 being pressed (Step S5). Then, the second winding shaft 22, which is a friction shaft, rotates at a low speed in the winding direction at a predetermined torque which is sufficient to remove slackening (Step S6).
  • the nip bar 26 stops holding the film 10, and the second winding shaft 22 rotates at a low speed in the winding direction at a predetermined winding torque.
  • the touch roller 23 and the film affixing roller 25 stop pressing (Step S7).
  • the touch roller 23 presses the film 10 to the winding core 12 of the second winding shaft 22, and the second winding shaft 22 rotates in the winding direction at a predetermined winding up torque (Step S8).
  • the winding core 12 around which the film 10 has been wound in advance is removed from the first winding shaft 21, and a new winding core 12 is inserted into the first winding shaft 21 (Step S9).
  • the invention is effective as a method for producing a rolled film, and can improve both quality and productivity.
  • the automatic film winding apparatus 2 has a configuration in which the automatic winding apparatus 2 is provided with the turret 20, the cutter 24 provided with a guide, the nip bar 26, the winding core positioning means 29 or the like.
  • the invention is, however, not limited thereto.
  • the automatic film winding apparatus of the invention may have a simple configuration in which it is provided with only one winding shaft 22, the touch roller 23 (the roller 231) and the film affixing roller 25 (the roller 251). That is, this automatic film winding apparatus is not necessarily provided with the turret 20, the cutter 24 provided with a guide, the nip bar 26 and the winding core positioning means 29 or the like.
  • an operator cuts the film 10 which has been wound around the winding core 12, and removes the rolled film 10 and the winding core 12, sets a new winding core 12 and hangs the film 10 on a new winding core 12.
  • the touch roller 23 and the film affixing roller 25 effectively suppress slackening of the film 10 between the pressing position by the touch roller 23 and the front end of the film 10.
  • winding quality is significantly improved.
  • the automatic film winding apparatus with the above-mentioned simple configuration may optionally have various functions or structures (for example, an automatic cutter, a plurality of winding mechanisms, rotatable touch rollers or film affixing rollers).
  • this automatic film winding apparatus with this simple configuration is effective when used in producing a rolled film.
  • winding quality is significantly improved.
  • this method for producing a rolled film may have a step of allowing the shaft to rotate in the winding direction with a torque which is sufficient to remove slackening, or other steps.
  • an adhesive such as glue is used as the retaining means which retains the film 10 which has been wound around the winding core 12 by the film affixing roller 25 on the surface of the winding core 12.
  • the retaining means is, however, not limited to an adhesive.
  • adsorption by static electricity, air spraying, adhesion by a double coated adhesive tape or the like may be used.
  • the materials or structures of the film are not particularly limited.
  • the materials of the film include a resin, a metal, a cloth, paper or the like, and a mixture thereof.
  • the structure of the film a laminate structure obtained by stacking layers of different materials or the like may be used.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
EP07828516A 2006-09-29 2007-09-27 Automatische folienwickelvorrichtung, schlitz- und wickelsystem und verfahren zur herstellung einer aufgerollten folie Withdrawn EP2067724A4 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2006267303 2006-09-29
JP2007137660 2007-05-24
PCT/JP2007/068770 WO2008047546A1 (fr) 2006-09-29 2007-09-27 Dispositif d'enroulement de film automatique, système de refendage et d'enroulement et procédé de fabrication d'un film enroulé

Publications (2)

Publication Number Publication Date
EP2067724A1 true EP2067724A1 (de) 2009-06-10
EP2067724A4 EP2067724A4 (de) 2011-06-22

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EP07828516A Withdrawn EP2067724A4 (de) 2006-09-29 2007-09-27 Automatische folienwickelvorrichtung, schlitz- und wickelsystem und verfahren zur herstellung einer aufgerollten folie

Country Status (8)

Country Link
US (1) US20100155522A1 (de)
EP (1) EP2067724A4 (de)
JP (1) JPWO2008047546A1 (de)
KR (1) KR101050337B1 (de)
CN (1) CN101522548B (de)
MY (1) MY162303A (de)
TW (1) TWI396656B (de)
WO (1) WO2008047546A1 (de)

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CN101798030A (zh) * 2010-04-02 2010-08-11 张春华 一种宽幅双向拉伸膜收卷机的接触定位装置
CN101798030B (zh) * 2010-04-02 2012-07-25 张春华 一种宽幅双向拉伸膜收卷机的接触定位装置
CN103204404A (zh) * 2012-01-11 2013-07-17 中山市和美塑胶材料有限公司 宽幅卷材分切装置及分切方法
EP2636622A2 (de) 2012-03-09 2013-09-11 SML Maschinengesellschaft m.b.H. Wendewickler einer Giessfolienanlage
CN102616603A (zh) * 2012-03-30 2012-08-01 奉化市双盾纺织帆布实业有限公司 涂塑布料的生产设备
CN102616603B (zh) * 2012-03-30 2014-11-26 奉化市双盾纺织帆布实业有限公司 涂塑布料的生产设备
CN103287890A (zh) * 2013-06-26 2013-09-11 汕头市华鹰软包装设备总厂有限公司 一种高速双工位卷机
EP2881348A1 (de) * 2013-11-11 2015-06-10 Koenig & Bauer Aktiengesellschaft Vorrichtung zum Wickeln einer Materialbahn zu einer mehrlagigen Rolle
CN106241473A (zh) * 2016-08-30 2016-12-21 江阴市科盛机械有限公司 收卷轴可翻转的薄膜分切机
CN109051970A (zh) * 2018-06-26 2018-12-21 台博胶粘材料（东台）有限公司 一种保护膜切断机构

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KR101050337B1 (ko) 2011-07-19
CN101522548B (zh) 2011-09-28
KR20090057256A (ko) 2009-06-04
JPWO2008047546A1 (ja) 2010-02-25
TW200829496A (en) 2008-07-16
CN101522548A (zh) 2009-09-02
EP2067724A4 (de) 2011-06-22
US20100155522A1 (en) 2010-06-24
TWI396656B (zh) 2013-05-21
WO2008047546A1 (fr) 2008-04-24

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