WO2011068174A1 - Film peeling device - Google Patents

Film peeling device Download PDF

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Publication number
WO2011068174A1
WO2011068174A1 PCT/JP2010/071613 JP2010071613W WO2011068174A1 WO 2011068174 A1 WO2011068174 A1 WO 2011068174A1 JP 2010071613 W JP2010071613 W JP 2010071613W WO 2011068174 A1 WO2011068174 A1 WO 2011068174A1
Authority
WO
WIPO (PCT)
Prior art keywords
mount
sheet
film
belt
unit
Prior art date
Application number
PCT/JP2010/071613
Other languages
French (fr)
Japanese (ja)
Inventor
武史 高山
光伸 吉田
正信 古川
加津男 浦西
尚季 守屋
Original Assignee
シャープ株式会社
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 シャープ株式会社 filed Critical シャープ株式会社
Priority to CN2010800629117A priority Critical patent/CN102741140A/en
Publication of WO2011068174A1 publication Critical patent/WO2011068174A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/54—Article strippers, e.g. for stripping from advancing elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B43/00—Operations specially adapted for layered products and not otherwise provided for, e.g. repairing; Apparatus therefor
    • B32B43/006—Delaminating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
    • B65H37/002—Web delivery apparatus, the web serving as support for articles, material or another web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H41/00—Machines for separating superposed webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B32B2457/202—LCD, i.e. liquid crystal displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1942—Web supporting regularly spaced non-adhesive articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/61—Display device manufacture, e.g. liquid crystal displays

Definitions

  • the present invention belongs to a technical field of a liquid crystal panel module, and in particular, a light-blocking adhesive sheet called a RIM sheet used for a backlight unit of a small-to-medium-sized liquid crystal panel module used for a mobile phone or the like. It is related with the technology to peel.
  • the backlight unit used in mobile phones and the like has a reflector plate attached to the lower surface of a frame, a light guide plate and an optical sheet disposed thereon, and a rim sheet (hereinafter referred to as “RIM sheet”) on the upper surface thereof.
  • RIM sheet a rim sheet
  • a sheet having a light-shielding property and adhesiveness on both front and back surfaces is attached to at least a shelf-shaped portion on the inner side of the frame so as to be positioned on the outer periphery of the optical sheet, and on a predetermined side surface of the light guide plate
  • a light emitting body such as an LED is attached to form a unit.
  • various optical films including RIM sheets are overlaid.
  • the RIM sheet has adhesive layers on both sides, and the RIM sheet supplied to the assembly process is supplied in a state in which a large number of sheets are stuck on a sheet-like strip-like mount and wound in a roll shape. .
  • the mount is drawn out from the roll shape into a strip shape, and the sheet-like film is peeled off from the mount and assembled into an optical film.
  • the protective sheet for protecting the adhesive surface at the time of assembly is also applied to the adhesive surface of the RIM sheet not attached to the belt-like mount. Is affixed. That is, it is a sheet-like film with a two-layer structure of a RIM sheet and a protective sheet, and when the RIM sheet is assembled to an optical film, it is necessary to peel off the two layers with the protective sheet pasted from the belt-like mount There is.
  • Patent Document 1 a structure in which the knife edge is moved and peeled in a state in which the belt-like mount on which the sheet-like film with tension applied to the knife edge is adhered is brought into close contact
  • Patent Document 2 a configuration in which the belt-like mount to which is attached is bent with a relatively small-diameter roller and the small-diameter roller and the belt-like mount are sandwiched between reverse warping rollers.
  • Patent Document 1 it is possible to peel a fragile sheet-like film without damaging it, but when there is strong adhesiveness between the belt-like mount and the RIM sheet, the adhesiveness In the case of peeling from the belt-like mount, there is a possibility that peeling occurs not between the RIM sheet and the belt-like mount but between the protective sheet and the RIM sheet.
  • the surface on which the sheet-like film is attached to the mount is passed outward while being curved by a relatively small diameter roller.
  • the belt-like mount is reversely warped while being sandwiched between a relatively small diameter roller and a reverse warp roller, but a two-layer sheet of film that is less rigid than the protective sheet, such as a RIM sheet, is used together with the protective sheet.
  • a two-layer sheet of film that is less rigid than the protective sheet such as a RIM sheet
  • An object of the present invention is to peel between a RIM sheet and a protective sheet when a light-blocking adhesive sheet called a RIM sheet used in a backlight unit of a small-to-medium-sized liquid crystal panel module is peeled off from a belt-like mount. This is to provide a film peeling apparatus capable of reliably peeling a two-layer sheet-like film from a belt-like mount.
  • the present invention provides a supply unit that supplies a belt-like mount on which a sheet-like film is attached, a peeling unit that peels the sheet-like film from the belt-like mount, and the supply unit and the peeling unit.
  • a tension applying unit that applies a predetermined tension to the belt-like mount
  • a holding unit that is disposed between the tension applying unit and the supply unit, and holds the belt-like mount, and the belt-like mount.
  • the strip strip is disposed between the supply unit and the holding unit, and the strip mount is disposed inside the sheet-like film.
  • a curved small-diameter roller that curves outwardly to a predetermined radius of curvature, and a curved large-diameter roller that is disposed in a next step of the curved small-diameter roller and that curves the strip-shaped mount outwardly beyond a predetermined radius of curvature. Characterized in that it comprises a curved portion for.
  • the tension applied by the tension applying unit to the strip-shaped mount is 4N or more and less than the tension at which the strip-shaped mount is broken.
  • the sheet-like film has an adhesive layer on both sides, and protects the adhesive layer of the first film on one side of the belt-like mount and the first film on the opposite side of the belt-like mount. It consists of two layers with a second film, and the sheet-like film is peeled from between the first film and the belt-like mount.
  • the diameter of the curved small diameter roller of the curved portion is less than 60 times the thickness of the first film.
  • the diameter of the curved large-diameter roller in the curved portion is 60 times or more with respect to the thickness of the first film.
  • the holding unit is released, and the tension applying unit applies the tension to the strip mounting, and the band mounting is supplied by the supply unit, and the bending is performed. It is characterized by passing the part.
  • the RIM sheet and the protective sheet which are sheet-like films affixed to a strip-shaped mount, are passed through the curved portion.
  • the tension applied to the strip-shaped mount is 4N or more, so that the curved portion Can be reliably wound around the curved small-diameter roller.
  • the diameter of the curved small-diameter roller to be wound is less than 60 times the thickness of the RIM sheet, the belt-like mount and the RIM sheet are curved with a sharp curve, and a shearing force is generated between the belt-like mount and the RIM sheet.
  • the shearing force acts so as to shift the adhesive surface between the strip-shaped mount and the RIM sheet in the horizontal direction, weakens the adhesiveness, and even a two-layer sheet-like film can be reliably peeled off from the strip-shaped mount.
  • the two-layer sheet is pressed against the belt-like sheet by pressing the two-layer sheet film whose adhesiveness is weakened with a large-diameter large-diameter roller having a diameter of 60 times or more of the thickness of the RIM sheet in the process before the peeling portion.
  • tackiness can be imparted to the leaf film and the belt-like mount, and it can be prevented from extremely reducing the tackiness, thereby preventing the double-layered sheet-like film from rising at the peeling part such as a knife edge, Even if the adhesiveness of the two-layer sheet film stuck to one roll of belt-like backing varies in strength, the two-layer sheet-like film can always be peeled from the belt-like backing sheet.
  • FIG. 1-1 shown in FIGS. 2A and 2B includes a RIM sheet 1-1-2 having an adhesive layer on both sides, and a protective sheet for protecting the adhesive surface of one surface of the RIM sheet 1-1-2. 1-1-1.
  • the protective sheet 1-1-1 functions as a member for protecting the adhesive surface until the RIM sheet 1-1-2 is peeled off from the belt-like mount 1-2 and for handling the RIM sheet 1-1-2 after being peeled off. . That is, since the RIM sheet 1-1-2 is bonded to another optical sheet, the surface of the protective sheet 1-1-1 is sucked and held by the vacuum suction pickup 14-3, and is transported.
  • the belt-like mount with the protective sheet 1-1-1 and the RIM sheet 1-1-2 attached it is necessary to peel from 1-2.
  • the protection sheet 1-1-1 and the adhesive strength of the RIM sheet 1-1-2 and the belt-like mount 1-2 are not separated from the protection sheet 1-1-1 and the RIM sheet 1-1-2.
  • the adhesive strength of the RIM sheet 1-1-2 is larger, so that the protective sheet 1-1-1 and the RIM sheet 1-1-2 are not peeled even when peeled by the knife edge 12 which is the peeling portion. I have to.
  • the outer shape of the sheet-like film 1-1 is cut by a punching die, and the die is cut halfway in the thickness direction of the belt-like mount 1-2 to cut the RIM sheet 1-1-2.
  • the cut surface of the RIM sheet 1-1-2 bites into the cut groove of the belt-like mount 1-2, and has a strong adhesive property that was not initially planned, and the protective sheet 1-1- 1 and the RIM sheet 1-1-2 may be peeled off.
  • FIG. 1 is an overall view of a film peeling apparatus (hereinafter referred to as “peeling apparatus”) 16 according to one embodiment of the present invention.
  • peeling apparatus The peeling process of the RIM sheet 1-1-2 according to this embodiment will be described.
  • a large number of protective sheets 1-1-1 and RIM sheets 1-1-2 are affixed onto a strip-shaped mount 1-2, and a roll material 1-B obtained by winding the sheet in a roll shape is supplied to the supply unit. It is supplied to a certain supply shaft 11.
  • the supply shaft 11 is disposed in the peeling device 16 so as to be rotated at the center by the amount wound by the pinch roller 13 that is a drive unit.
  • the roll material 1-B is used and disappears, a new roll material 1-B can be supplied.
  • the roll material 1-B pulls out the sheet material 1-A from the wound end portion to the peeling device 16, passes through the guide roller 4, and is guided to the bending process.
  • the bending process includes a first bending small-diameter roller 6-1 and a second bending small-diameter roller 6-2, and a pre-curving roller 5-1, front and rear rollers 5-2, and a post-curving roller 5-3.
  • the first curved small-diameter roller 6-1 and the second curved small-diameter roller 6-2 are located at the vertices of two valleys that respectively curve the sheet material 1-A at a W-shaped steep angle, and pass through the vertices.
  • the peelability between the RIM sheet 1-1-2 and the belt-like mount 1-2 is improved.
  • the belt-like mount 1-2 is placed on either the first curved small diameter roller 6-1 or the second curved small diameter roller 6-2. Either one or both may not be used without passing through.
  • FIG. 5 shows a state where the protective sheet 1-1-1, the RIM sheet 1-1-2, and the belt-like mount 1-2 are curved by the curved small diameter roller 6.
  • the direction in which the belt-like mount 1-2 is curved is such that the surface on which the protective sheet 1-1-1 and the RIM sheet 1-1-2 are attached is on the inner side, and the protective sheet 1-1-1, the RIM sheet 1-1. -2 and the belt-like mount 1-2 pass from the upstream to the downstream while being in close contact with the curved small-diameter roller 6.
  • the protective sheet 1-1-1, the RIM sheet 1-1-2, and the belt-like mount 1-2 reach the curved small-diameter roller 6 from upstream, the protective sheet 1-1-1 and the belt-like mount 1-2 are folded back at an acute angle.
  • the protective sheet 1-1-1 close to the curved small-diameter roller 6 and the belt-like mount 1-2 located outside of the protective sheet 1-1-1 gives a shearing force to the RIM sheet 1-1-2. give.
  • the shearing force causes slipping on the sticking surface between the RIM sheet 1-1-2 and the belt-like mount 1-2, and improves the peelability.
  • the thickness of the RIM sheet 1-1-2 of this embodiment is 70 ⁇ m, the diameter of the curved small diameter roller 6 is 4 mm, and the diameter of the curved small diameter roller 6 is 60 mm with respect to the thickness of the RIM sheet 1-1-2.
  • it is desirable that the thickness of the curved small-diameter roller 6 is not less than the thickness that does not deform due to the tension applied to the sheet material 1-A.
  • the strip mount 1-2 and the RIM sheet 1-1-2 which have improved releasability in the bending process, pass through the stopper 7 which is a holding portion, then pass through the front guide roller 8, and are bent with a large diameter roller. It is guided from a certain dancer roller 9-1 to the rear guide roller 10.
  • the curved small diameter roller 6 and the dancer roller 9-1 constitute a curved portion.
  • the stopper 7 can clamp the belt-like mount 1-2 and fix it without slipping, and can pass through it without releasing the clamp.
  • the front guide roller 8 and the rear guide roller 10 are rollers that can freely rotate, but the shaft center is fixed.
  • the dancer roller 9-1 disposed between the front guide roller 8 and the rear guide roller 10 is disposed so as to be movable up and down while keeping the rotation shaft parallel to each roller, and is always a tension applying portion.
  • a downward load is applied by the dancer roller weight 9-2, and tension is applied to the sheet material 1-A.
  • the bending small diameter roller 6 and the sheet material 1-A can be brought into close contact with each other in the bending process.
  • a large number of two-layered sheet films 1-1 have variations in the adhesiveness with the belt-like mount 1-2 and may have weak adhesiveness.
  • the sheet material 1-A which has become extremely weak in adhesiveness, also has appropriate adhesiveness for peeling.
  • the diameter of the dancer roller 9-1 is 60 times or more the thickness of the RIM sheet 1-1-2, and the first curved small diameter roller 6-1 and the second curved small diameter roller 6-2 reduced the adhesiveness. Things will not be further reduced.
  • FIG. 3 shows a state in which the sheet material 1-A is bent by the knife edge 12 and the sheet-like film 1-1 is peeled off from the strip-shaped mount 1-2.
  • the friction between the surface of the knife edge 12 and the belt-like mount 1-2 is small, and the knife edge 12 slides smoothly.
  • a conveyance unit 14 is provided above the knife edge 12 and sucks and holds the sheet-like film 1-1 peeled off by the knife edge 12 by a vacuum suction pickup 14-3.
  • the adsorbing surface adsorbs the upper surface of the protective sheet 1-1-1, and is conveyed while being adsorbed by the left and right movable cylinders 14-1 and the upper and lower movable cylinders 14-2 to be overlapped with other optical sheets. Carried away.
  • the sheet material 1-A that has passed the knife edge 12 and from which the protective sheet 1-1-1 and the RIM sheet 1-1-2 have been peeled becomes only the strip mount 1-2, and is guided to the pinch roller 13.
  • the pinch roller 13 includes a first pinch roller 13-1 and a second pinch roller 13-2. These two rollers clamp the belt-like mount 1-2 on the cylindrical side of each other, and after the belt-like mount 1-2 is clamped by the stopper 7 upstream from the dancer roller 9-1, the belt-like mount is driven by a motor. 1-2 is pulled from the knife edge 12 side to the winding shaft 15 without slipping. The belt-like mount 1-2 moves the dancer roller 9-1 upward by the pulling force of the pinch roller 13.
  • the dancer roller 9-1 Since the dancer roller 9-1 is given a downward force by the dancer roller weight 9-2, the dancer roller 9-1 can apply a tension to the belt-like mount 1-2.
  • a sensor for detecting the dancer roller 9-1 is provided at the upper and lower limits of the upper and lower movable range of the dancer roller 9-1. If the sensor is detected at the lower limit, the stopper 7 clamps the belt-like mount 1-2, and the pinch roller 13, the belt-like mount 1-2 is moved.
  • the pinch roller 13 stops driving, the stopper 7 stops the clamp, and the belt-like mount 1-2 is released. .
  • the released belt-like mount 1-2 is moved downward by the downward force of the dancer roller weight 9-2, and the belt-like mount 1-2 is pulled out from the supply shaft 11 by the amount of movement.
  • the dancer roller 9-1 reaches the lower limit, it is similarly detected by the detection sensor and repeats a series of operations.
  • the belt-like mount 1-2 drawn out by the pinch roller 13 is taken up without slack by the take-up shaft 15 which is a paper take-up portion, and is collected as a roll-like belt-like mount roll 3.
  • the winding shaft 15 is driven by a motor.
  • FIG. 6 is a principle diagram for measuring the force for peeling the RIM sheet 1-1-2 from the strip-shaped mount 1-2.
  • the protective sheet 1-1-1 is fixed to the base 18 with the strong adhesive sheet 17, the end of the short cut sheet material 1-A is clamped with the clamp 19, and the force gauge is applied until the RIM sheet 1-1-2 is peeled off. Pull 20 horizontally.
  • the maximum value of the force gauge 20 at the time of peeling was defined as the force necessary for peeling.
  • FIG. 7 shows how the peelability between the RIM sheet 1-1-2 and the strip mount 1-2 is changed when the diameter of the curved small-diameter roller 6 is changed to ⁇ 4 mm, ⁇ 6 mm, ⁇ 8 mm, ⁇ 10 mm, ⁇ 40 mm, and no curvature. It shows how it changes.
  • the peel force measured according to the principle shown in FIG. 6 is taken on the vertical axis, and the curved small diameter roller diameter is taken on the horizontal axis. When there is no curvature, a force of 0.7 N or more is required to peel off the RIM sheet 1-1-2.
  • the curved small diameter roller 6 having a diameter of 10 mm or less is curved, the force becomes 0.5 N or less. Further, it can be seen that as the diameter of the curved small diameter roller 6 is reduced, the peeling force is reduced and the peelability is improved.
  • Sheet material 1-B Roll material 1-1: Sheet-fed film 1-1-1: Protective sheet 1-1-2: RIM sheet 1-2: Strip mount 3: Strip mount roll 4: Guide roller 5: Curved roller 5-1: Pre-curved roller 5-2: Curved middle roller 5-3: Curved roller 6: Curved small-diameter roller 6-4: First curved small-diameter roller 6-5: Second curved small-diameter roller 7: Stopper 8: Front guide roller 9-1: Dancer roller 9-2: Dancer roller weight 10: Rear guide roller 11: Supply shaft 12: Knife edge 13: Pinch roller 13-1 First pinch roller 13-2 Second pinch roller 14: Transport unit 14-1 Left and right movable cylinder 14-2 Vertical movable cylinder 14-3 Vacuum suction pickup 15: Winding shaft 16: Peeling device 17: Strong adhesive sheet 18: Base 9: clamp 20: Force gauge

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Labeling Devices (AREA)
  • Adhesive Tapes (AREA)

Abstract

A technique for peeling from the band-like base a light shielding adhesive sheet which is called a RIM sheet and is used for a backlight unit for a module for a liquid crystal panel. A film peeling device (16) is provided with: a supply shaft (11); a knife edge (12); a dancer roller weight (9-2); a stopper (7); a take-up shaft (15); pinch rollers (13); small-diameter curving rollers (6) provided between the supply shaft (11) and the stopper (7) and inwardly curving a sheet-like film (1-1) and a band-like base (1-2) to a radius of curvature greater than or equal to a predetermined radius of curvature with the sheet-like film (1-1) located inside and the band-like base (1-2) located outside; and a dancer roller (9-1) which is provided in the process next to the process performed by the small-diameter curving rollers (6) and which curves the sheet-like film (1-1) and the band-like base (1-2) to a radius of curvature greater than or equal to a predetermined radius of curvature with the band-like base (1-2) located outside.

Description

フィルム剥離装置Film peeling device
　本発明は、液晶パネルのモジュールの技術分野に属し、特に携帯電話などに使用される中小型の液晶パネルのモジュールのバックライトユニットに用いられる、ＲＩＭシートと呼ばれる遮光用粘着性シートを、台紙より剥離する技術に関する。 The present invention belongs to a technical field of a liquid crystal panel module, and in particular, a light-blocking adhesive sheet called a RIM sheet used for a backlight unit of a small-to-medium-sized liquid crystal panel module used for a mobile phone or the like. It is related with the technology to peel.
　携帯電話などに使用されているバックライトユニットの構成は、フレームの下面に反射板を貼り付け、その上に導光板、光学シートを配置し、さらにその上面にリムシート（以下、「ＲＩＭシート」と記す）と呼ばれる遮光性と表裏両面に粘着性を有するシートを光学シートの外周に位置するように、少なくともフレームの内方側の周囲の棚形状部に貼りつけるとともに、導光板の所定の側面にＬＥＤなどの発光体を取りつけられ、ユニットを形成している。 The backlight unit used in mobile phones and the like has a reflector plate attached to the lower surface of a frame, a light guide plate and an optical sheet disposed thereon, and a rim sheet (hereinafter referred to as “RIM sheet”) on the upper surface thereof. A sheet having a light-shielding property and adhesiveness on both front and back surfaces is attached to at least a shelf-shaped portion on the inner side of the frame so as to be positioned on the outer periphery of the optical sheet, and on a predetermined side surface of the light guide plate A light emitting body such as an LED is attached to form a unit.
　このバックライトユニットを組み立てる工程においては、ＲＩＭシートを含めた種々の光学フィルムが重ね合わされる。ＲＩＭシートは両面に粘着層を有しており、組み立て工程に供給されるＲＩＭシートは、多数のシートが枚葉状で帯状の台紙上に貼着され、ロール状に巻かれた状態で供給される。組み立ての際は、台紙がロール状から帯状に引き出され、その台紙より枚葉状フィルムが剥離されて、光学フィルムに組み立てられる。 In the process of assembling this backlight unit, various optical films including RIM sheets are overlaid. The RIM sheet has adhesive layers on both sides, and the RIM sheet supplied to the assembly process is supplied in a state in which a large number of sheets are stuck on a sheet-like strip-like mount and wound in a roll shape. . At the time of assembly, the mount is drawn out from the roll shape into a strip shape, and the sheet-like film is peeled off from the mount and assembled into an optical film.
　さらに、上記で述べたようにＲＩＭシートは両面に粘着層を有しているので、帯状台紙に貼着されていない方のＲＩＭシートの粘着面にも、組み立て時の粘着面保護のため保護シートが貼られている。すなわち、ＲＩＭシートと保護シートとの二層構造の枚葉状フィルムになっており、ＲＩＭシートが光学フィルムに組み立てられるときは、保護シートが貼られた状態の二層ごと帯状台紙から剥離される必要がある。 Furthermore, as described above, since the RIM sheet has adhesive layers on both sides, the protective sheet for protecting the adhesive surface at the time of assembly is also applied to the adhesive surface of the RIM sheet not attached to the belt-like mount. Is affixed. That is, it is a sheet-like film with a two-layer structure of a RIM sheet and a protective sheet, and when the RIM sheet is assembled to an optical film, it is necessary to peel off the two layers with the protective sheet pasted from the belt-like mount There is.
　従来のフィルム剥離装置では、ナイフエッジにテンションを掛けた枚葉状フィルムが貼着された帯状台紙を密着させ状態で、ナイフエッジを移動させて剥離する構成（例えば特許文献１）や、枚葉状フィルムが貼着された帯状台紙を比較的小径ローラで湾曲させながら、その小径ローラと帯状台紙を逆反りローラで挟みながら、剥離する構成（例えば特許文献２）のものがある。 In the conventional film peeling apparatus, a structure in which the knife edge is moved and peeled in a state in which the belt-like mount on which the sheet-like film with tension applied to the knife edge is adhered is brought into close contact (for example, Patent Document 1), or a sheet-like film There is a configuration (for example, Patent Document 2) in which the belt-like mount to which is attached is bent with a relatively small-diameter roller and the small-diameter roller and the belt-like mount are sandwiched between reverse warping rollers.
特開２００４－５１２９７号公報JP 2004-51297 A 特開昭５９－１４２９３３号公報JP 59-142933 A
　ところが特許文献１に開示される技術では、破損しやすい枚葉状フィルムなどを破損せずに剥離することはできるが、帯状台紙とＲＩＭシートとの間に強い粘着性があった場合、その粘着性を弱める効果は少なく、帯状台紙より剥離する場合、ＲＩＭシートと帯状台紙との間ではなく、保護シートとＲＩＭシートとの間で剥離する恐れがあった。 However, in the technique disclosed in Patent Document 1, it is possible to peel a fragile sheet-like film without damaging it, but when there is strong adhesiveness between the belt-like mount and the RIM sheet, the adhesiveness In the case of peeling from the belt-like mount, there is a possibility that peeling occurs not between the RIM sheet and the belt-like mount but between the protective sheet and the RIM sheet.
　また、特許文献２に開示される技術では、枚葉状フィルムが台紙に貼着されている面を外側に比較的小径のローラで湾曲させながら通過させる。その時、帯状台紙を比較的小径のローラと逆反りローラとで挟みながら、逆反りさせているが、二層の枚葉状フィルムでＲＩＭシートのように保護シートより剛性の小さなものは、保護シートと共に剥離されるとは限らず、ＲＩＭシートより剛性の大きい保護シートのみがＲＩＭシートから剥離され、ＲＩＭシートは帯状台紙から剥離されない恐れがあった。 Further, in the technique disclosed in Patent Document 2, the surface on which the sheet-like film is attached to the mount is passed outward while being curved by a relatively small diameter roller. At that time, the belt-like mount is reversely warped while being sandwiched between a relatively small diameter roller and a reverse warp roller, but a two-layer sheet of film that is less rigid than the protective sheet, such as a RIM sheet, is used together with the protective sheet. There is a possibility that only the protective sheet having rigidity higher than that of the RIM sheet is peeled off from the RIM sheet, and the RIM sheet is not peeled off from the belt-like mount.
　本発明の目的は、中小型の液晶パネルのモジュールのバックライトユニットに用いられる、ＲＩＭシートと呼ばれる遮光用粘着性シートを帯状台紙より剥離する際に、ＲＩＭシートと保護シートとの間で剥離することを防止し、二層の枚葉状フィルムを帯状台紙から確実に剥離することができるフィルム剥離装置を提供することである。 An object of the present invention is to peel between a RIM sheet and a protective sheet when a light-blocking adhesive sheet called a RIM sheet used in a backlight unit of a small-to-medium-sized liquid crystal panel module is peeled off from a belt-like mount. This is to provide a film peeling apparatus capable of reliably peeling a two-layer sheet-like film from a belt-like mount.
　上記課題を解決するため、本発明は、枚葉状フィルムが貼着されている帯状台紙を供給する供給部と、前記枚葉状フィルムを前記帯状台紙より剥離する剥離部と、前記供給手段と剥離部との間に配置され、前記帯状台紙に所定のテンションを付与するテンション付与部と、前記テンション付与部と供給部との間に配置され、前記帯状台紙を保持する保持部と、前記帯状台紙を巻き取る台紙巻取り部と、前記帯状台紙を駆動する駆動部とを含むフィルム剥離装置において、前記供給部と前記保持部との間に配置され、前記枚葉状フィルムを内側に、前記帯状台紙を外側に所定の曲率半径以下に湾曲させる湾曲小径ローラと、前記湾曲小径ローラの次工程に配置され、前記帯状台紙を外側に所定の曲率半径以上に湾曲させる湾曲大径ローラとを有する湾曲部を含むことを特徴とする。 In order to solve the above-described problems, the present invention provides a supply unit that supplies a belt-like mount on which a sheet-like film is attached, a peeling unit that peels the sheet-like film from the belt-like mount, and the supply unit and the peeling unit. A tension applying unit that applies a predetermined tension to the belt-like mount, a holding unit that is disposed between the tension applying unit and the supply unit, and holds the belt-like mount, and the belt-like mount. In a film peeling device including a mount winding unit for winding and a driving unit for driving the strip mount, the strip strip is disposed between the supply unit and the holding unit, and the strip mount is disposed inside the sheet-like film. A curved small-diameter roller that curves outwardly to a predetermined radius of curvature, and a curved large-diameter roller that is disposed in a next step of the curved small-diameter roller and that curves the strip-shaped mount outwardly beyond a predetermined radius of curvature. Characterized in that it comprises a curved portion for.
　また、前記テンション付与部が前記帯状台紙に付与するテンションの大きさは、４Ｎ以上かつ前記帯状台紙が破断するテンション未満であることを特徴とする。 Further, the tension applied by the tension applying unit to the strip-shaped mount is 4N or more and less than the tension at which the strip-shaped mount is broken.
　また、前記枚葉状フィルムは、両面に粘着層を有し、片面を前記帯状台紙に貼り付けられた第一のフィルムと、前記帯状台紙の反対側の前記第一のフィルムの粘着層を保護する第二のフィルムとの二層から成り、前記第一のフィルムと前記帯状台紙との間から前記枚葉状フィルムを剥離することを特徴とする。 Further, the sheet-like film has an adhesive layer on both sides, and protects the adhesive layer of the first film on one side of the belt-like mount and the first film on the opposite side of the belt-like mount. It consists of two layers with a second film, and the sheet-like film is peeled from between the first film and the belt-like mount.
　また、前記湾曲部の湾曲小径ローラの直径が、前記第一のフィルムの厚みに対して、６０倍未満であることを特徴とする。 Further, the diameter of the curved small diameter roller of the curved portion is less than 60 times the thickness of the first film.
　また、前記湾曲部の湾曲大径ローラの直径が、前記第一のフィルムの厚みに対して、６０倍以上であることを特徴とする。 Further, the diameter of the curved large-diameter roller in the curved portion is 60 times or more with respect to the thickness of the first film.
　また、前記駆動部による駆動を停止させた状態で、前記保持部を解放し、前記テンション付与部にて前記帯状台紙にテンションを付与しながら、前記帯状台紙を前記供給部によって供給し、前記湾曲部を通過させることを特徴とする。 Further, in a state where the driving by the driving unit is stopped, the holding unit is released, and the tension applying unit applies the tension to the strip mounting, and the band mounting is supplied by the supply unit, and the bending is performed. It is characterized by passing the part.
　本発明では、帯状の台紙に多数貼着された枚葉状フィルムであるＲＩＭシートおよび保護シートを湾曲部に通過させるが、その際、その帯状台紙にかけるテンションは４Ｎ以上であることで、湾曲部の湾曲小径ローラに確実に巻きつけることができる。巻きつけられるその湾曲小径ローラの直径がＲＩＭシートの厚みの６０倍未満であると、帯状台紙とＲＩＭシートは急なカーブで湾曲され、帯状台紙とＲＩＭシートとの間にせん断力が発生する。そのせん断力は、帯状台紙とＲＩＭシートとの粘着面を水平方向にずらすように作用し、粘着性を弱め、二層の枚葉状フィルムでも確実に帯状台紙より剥離することができる。その後、剥離部の前の工程でＲＩＭシートの厚みの６０倍以上の大径の湾曲大径ローラで粘着性を弱められた二層の枚葉状フィルムを帯状台紙に押さえつけることで、二層の枚葉状フィルムと帯状台紙に適度な粘着性をもたせることができ、極度に粘着性を低下させることを防止でき、そのことでナイフエッジ等の剥離部で、二層の枚葉状フィルムが舞い上がること防ぎ、一巻きの帯状台紙に貼着された二層の枚葉状フィルムの粘着性に強弱のバラツキがあっても常に、帯状台紙より、二層の枚葉状フィルムを剥離することができる。 In the present invention, the RIM sheet and the protective sheet, which are sheet-like films affixed to a strip-shaped mount, are passed through the curved portion. At that time, the tension applied to the strip-shaped mount is 4N or more, so that the curved portion Can be reliably wound around the curved small-diameter roller. When the diameter of the curved small-diameter roller to be wound is less than 60 times the thickness of the RIM sheet, the belt-like mount and the RIM sheet are curved with a sharp curve, and a shearing force is generated between the belt-like mount and the RIM sheet. The shearing force acts so as to shift the adhesive surface between the strip-shaped mount and the RIM sheet in the horizontal direction, weakens the adhesiveness, and even a two-layer sheet-like film can be reliably peeled off from the strip-shaped mount. After that, the two-layer sheet is pressed against the belt-like sheet by pressing the two-layer sheet film whose adhesiveness is weakened with a large-diameter large-diameter roller having a diameter of 60 times or more of the thickness of the RIM sheet in the process before the peeling portion. Appropriate tackiness can be imparted to the leaf film and the belt-like mount, and it can be prevented from extremely reducing the tackiness, thereby preventing the double-layered sheet-like film from rising at the peeling part such as a knife edge, Even if the adhesiveness of the two-layer sheet film stuck to one roll of belt-like backing varies in strength, the two-layer sheet-like film can always be peeled from the belt-like backing sheet.
　本発明の目的、特色、および利点は、下記の詳細な説明と図面とからより明確になるであろう。
本発明の一実施例を表す図である。 帯状台紙上に貼着されたＲＩＭシートの一実施例を表す上面図である。 帯状台紙上に貼着されたＲＩＭシートの一実施例を表す断面図である。 剥離部の一実施例を表す斜視図である。 剥離部の一実施例でＲＩＭシートの剥離不良を表す斜視図である。 本発明の一実施例で湾曲工程を表す図である。 ＲＩＭシートを帯状台紙より剥離する時の力を測定する原理図である。 湾曲小径ローラ径によるＲＩＭシートの剥離力変化を表すグラフである。 Objects, features, and advantages of the present invention will become more apparent from the following detailed description and drawings.
It is a figure showing one Example of this invention. It is a top view showing one Example of the RIM sheet affixed on the strip | belt-shaped mount. It is sectional drawing showing one Example of the RIM sheet affixed on the strip | belt-shaped mount. It is a perspective view showing one Example of a peeling part. It is a perspective view showing the peeling defect of a RIM sheet in one example of a peeling part. It is a figure showing a bending process in one Example of this invention. It is a principle figure which measures the force at the time of peeling a RIM sheet from a strip | belt-shaped mount. It is a graph showing the peeling force change of a RIM sheet by a curved small diameter roller diameter.
　以下図面を参考にして本発明の好適な実施例を詳細に説明する。
　本発明の一実施例を図１、図２Ａ、図２Ｂ、図３、図４、および図５を用いて説明する。図２Ａ、図２Ｂに示す枚葉状フィルム１－１は、両面に粘着層を持ったＲＩＭシート１－１－２と、ＲＩＭシート１－１－２の一方の面の粘着面を保護する保護シート１－１－１とで構成されている。枚葉状フィルム１－１を多数枚、帯状台紙１－２の上に等間隔でＲＩＭシート１－１－２の保護シート１－１－１が貼着されていない粘着面を貼着したものを、シート材料１－Ａと呼ぶ。それをロール状に巻いたロール材料１－Ｂで供給される。保護シート１－１－１は帯状台紙１－２よりＲＩＭシート１－１－２を剥離するまで、粘着面の保護と、剥離した後、ＲＩＭシート１－１－２をハンドリングする部材として機能する。つまりＲＩＭシート１－１－２は他の光学シートと張り合わせられるため、真空吸着式ピックアップ１４－３によって、保護シート１－１－１の表面を吸着、保持し、搬送される。 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
An embodiment of the present invention will be described with reference to FIGS. 1, 2A, 2B, 3, 4, and 5. FIG. The sheet-like film 1-1 shown in FIGS. 2A and 2B includes a RIM sheet 1-1-2 having an adhesive layer on both sides, and a protective sheet for protecting the adhesive surface of one surface of the RIM sheet 1-1-2. 1-1-1. A large number of sheet-like films 1-1, which are adhered to a strip mount 1-2 with an adhesive surface to which the protective sheet 1-1-1 of the RIM sheet 1-1-2 is not evenly spaced. This is referred to as sheet material 1-A. It is supplied by roll material 1-B which is rolled into a roll. The protective sheet 1-1-1 functions as a member for protecting the adhesive surface until the RIM sheet 1-1-2 is peeled off from the belt-like mount 1-2 and for handling the RIM sheet 1-1-2 after being peeled off. . That is, since the RIM sheet 1-1-2 is bonded to another optical sheet, the surface of the protective sheet 1-1-1 is sucked and held by the vacuum suction pickup 14-3, and is transported.
　従って、図３に示すようにＲＩＭシート１－１－２を他の光学シートに張り合わせるにはまず、保護シート１－１－１とＲＩＭシート１－１－２を貼着したまま、帯状台紙１－２から剥離する必要がある。本来、保護シート１－１－１とＲＩＭシート１－１－２は剥離しないように、ＲＩＭシート１－１－２と帯状台紙１－２の粘着強さよりも、保護シート１－１－１とＲＩＭシート１－１－２の粘着強さの方が大きくしてあり、剥離部であるナイフエッジ１２によって剥離する時も保護シート１－１－１とＲＩＭシート１－１－２が剥離されないようにしている。しかしながら、枚葉状フィルム１－１を外形を打ち抜き金型にて、切断するが、金型は帯状台紙１－２の厚み方向の途中まで切り込みＲＩＭシート１－１－２を切断する。この時、ＲＩＭシート１－１－２の切断面が帯状台紙１－２の切断溝に食い込んでしまい、当初、予定していなかった強力な粘着性を有してしまい、保護シート１－１－１とＲＩＭシート１－１－２の間を剥離してしまうことがある。 Therefore, as shown in FIG. 3, in order to attach the RIM sheet 1-1-2 to another optical sheet, first, the belt-like mount with the protective sheet 1-1-1 and the RIM sheet 1-1-2 attached. It is necessary to peel from 1-2. Originally, the protection sheet 1-1-1 and the adhesive strength of the RIM sheet 1-1-2 and the belt-like mount 1-2 are not separated from the protection sheet 1-1-1 and the RIM sheet 1-1-2. The adhesive strength of the RIM sheet 1-1-2 is larger, so that the protective sheet 1-1-1 and the RIM sheet 1-1-2 are not peeled even when peeled by the knife edge 12 which is the peeling portion. I have to. However, the outer shape of the sheet-like film 1-1 is cut by a punching die, and the die is cut halfway in the thickness direction of the belt-like mount 1-2 to cut the RIM sheet 1-1-2. At this time, the cut surface of the RIM sheet 1-1-2 bites into the cut groove of the belt-like mount 1-2, and has a strong adhesive property that was not initially planned, and the protective sheet 1-1- 1 and the RIM sheet 1-1-2 may be peeled off.
　図１は本発明の１実施例であるフィルム剥離装置（以下、「剥離装置」と記す）１６の全体図である。本実施例によるＲＩＭシート１－１－２の剥離工程を説明する。まず、保護シート１－１－１とＲＩＭシート１－１－２が多数枚、帯状台紙１－２の上に貼着され、それをロール状に巻いたロール材料１－Ｂが、供給部である供給シャフト１１に供給される。供給シャフト１１はその中心で駆動部であるピンチローラ１３で巻き取られた分だけ回転できるように剥離装置１６に配置されている。ロール材料１－Ｂが使用され、無くなれば、新たな、ロール材料１－Ｂを供給することができる。剥離装置１６にロール材料１－Ｂは巻かれた端部からシート材料１－Ａを引き出し、案内ローラ４を通って、湾曲工程へと導いていく。湾曲工程は第一湾曲小径ローラ６－１と第二湾曲小径ローラ６－２とその前後にある湾曲前ローラ５－１、湾曲中ローラ５－２および湾曲後ローラ５－３からなる。第一湾曲小径ローラ６－１、第二湾曲小径ローラ６－２は各々をシート材料１－ＡをＷ字状の急な角度で湾曲させる２つの谷部の頂点に位置し、その頂点を通過させ、ＲＩＭシート１－１－２と帯状台紙１－２との剥離性を良好にする。ただし、供給されたＲＩＭシート１－１－２の剥離性が良好な場合は、第一湾曲小径ローラ６－１、または第二湾曲小径ローラ６－２のどちらかに、帯状台紙１－２を通すことなく、どちらか一方のみを使用するか、またはどちらも使用しなくても良い。 FIG. 1 is an overall view of a film peeling apparatus (hereinafter referred to as “peeling apparatus”) 16 according to one embodiment of the present invention. The peeling process of the RIM sheet 1-1-2 according to this embodiment will be described. First, a large number of protective sheets 1-1-1 and RIM sheets 1-1-2 are affixed onto a strip-shaped mount 1-2, and a roll material 1-B obtained by winding the sheet in a roll shape is supplied to the supply unit. It is supplied to a certain supply shaft 11. The supply shaft 11 is disposed in the peeling device 16 so as to be rotated at the center by the amount wound by the pinch roller 13 that is a drive unit. When the roll material 1-B is used and disappears, a new roll material 1-B can be supplied. The roll material 1-B pulls out the sheet material 1-A from the wound end portion to the peeling device 16, passes through the guide roller 4, and is guided to the bending process. The bending process includes a first bending small-diameter roller 6-1 and a second bending small-diameter roller 6-2, and a pre-curving roller 5-1, front and rear rollers 5-2, and a post-curving roller 5-3. The first curved small-diameter roller 6-1 and the second curved small-diameter roller 6-2 are located at the vertices of two valleys that respectively curve the sheet material 1-A at a W-shaped steep angle, and pass through the vertices. As a result, the peelability between the RIM sheet 1-1-2 and the belt-like mount 1-2 is improved. However, when the supplied RIM sheet 1-1-2 has good peelability, the belt-like mount 1-2 is placed on either the first curved small diameter roller 6-1 or the second curved small diameter roller 6-2. Either one or both may not be used without passing through.
　図５は保護シート１－１－１、ＲＩＭシート１－１－２、帯状台紙１－２が湾曲小径ローラ６によって湾曲している状態を表している。帯状台紙１－２を湾曲させる方向は、保護シート１－１－１、ＲＩＭシート１－１－２が貼着されている面を内側で、保護シート１－１－１、ＲＩＭシート１－１－２および帯状台紙１－２は湾曲小径ローラ６に密着しながら、上流から下流へと通過していく。保護シート１－１－１、ＲＩＭシート１－１－２および帯状台紙１－２が上流から湾曲小径ローラ６にさしかかると、保護シート１－１－１と帯状台紙１－２は鋭角に折り返されるが、湾曲小径ローラ６に近い保護シート１－１－１と、それよりも外側にある帯状台紙１－２では移動距離に差が生じ、その差がＲＩＭシート１－１－２にせん断力を与える。そのせん断力はＲＩＭシート１－１－２と帯状台紙１－２との貼着面にすべりを起こし、剥離性を良好にする。本実施例のＲＩＭシート１－１－２の厚みは７０μｍであり、湾曲小径ローラ６の直径は４ｍｍで、湾曲小径ローラ６の直径が、ＲＩＭシート１－１－２の厚みに対して、６０倍未満であることを満たしているが、湾曲小径ローラ６の太さは、シート材料１－Ａにかかるテンションにより変形しない太さ以上が望ましい。 FIG. 5 shows a state where the protective sheet 1-1-1, the RIM sheet 1-1-2, and the belt-like mount 1-2 are curved by the curved small diameter roller 6. The direction in which the belt-like mount 1-2 is curved is such that the surface on which the protective sheet 1-1-1 and the RIM sheet 1-1-2 are attached is on the inner side, and the protective sheet 1-1-1, the RIM sheet 1-1. -2 and the belt-like mount 1-2 pass from the upstream to the downstream while being in close contact with the curved small-diameter roller 6. When the protective sheet 1-1-1, the RIM sheet 1-1-2, and the belt-like mount 1-2 reach the curved small-diameter roller 6 from upstream, the protective sheet 1-1-1 and the belt-like mount 1-2 are folded back at an acute angle. However, there is a difference in moving distance between the protective sheet 1-1-1 close to the curved small-diameter roller 6 and the belt-like mount 1-2 located outside of the protective sheet 1-1-1, and the difference gives a shearing force to the RIM sheet 1-1-2. give. The shearing force causes slipping on the sticking surface between the RIM sheet 1-1-2 and the belt-like mount 1-2, and improves the peelability. The thickness of the RIM sheet 1-1-2 of this embodiment is 70 μm, the diameter of the curved small diameter roller 6 is 4 mm, and the diameter of the curved small diameter roller 6 is 60 mm with respect to the thickness of the RIM sheet 1-1-2. However, it is desirable that the thickness of the curved small-diameter roller 6 is not less than the thickness that does not deform due to the tension applied to the sheet material 1-A.
　湾曲工程にて、剥離性が良好になった帯状台紙１－２およびＲＩＭシート１－１－２は保持部であるストッパー７を通り、次に前ガイドローラ８を通って、湾曲大径ローラであるダンサーローラ９－１から、後ガイドローラ１０へと導かれる。湾曲小径ローラ６とダンサーローラ９－１とによって湾曲部が構成される。ストッパー７は帯状台紙１－２をクランプし、すべりなく固定でき、クランプを解除すればつまりなく通過させることができる。前ガイドローラ８と後ガイドローラ１０は自由回転できるローラであるが、軸中心は固定されている。一方、前ガイドローラ８と後ガイドローラ１０の間に配置されたダンサーローラ９－１は各ローラと回転軸を平行に保ったまま、上下に可動できるように配置され、常にテンション付与部であるダンサーローラウエイト９－２によって下向きの荷重をかけられており、シート材料１－Ａにテンションを付与している。このテンションにより湾曲工程での湾曲小径ローラ６とシート材料１－Ａが密着することができる。また、多数の二層の枚葉状フィルム１－１には、帯状台紙１－２との粘着性にバラツキがあり、粘着性が弱いものも存在する場合があるが、ダンサーローラ９－１によって、その極度に粘着性の弱くなったシート材料１－Ａも剥離に適度な粘着性になる。なおダンサーローラ９－１の直径はＲＩＭシート１－１－２の厚みの６０倍以上であり、第一湾曲小径ローラ６－１及び第二湾曲小径ローラ６－２によって、粘着性を低下させたものを、更に低下させることはない。 The strip mount 1-2 and the RIM sheet 1-1-2, which have improved releasability in the bending process, pass through the stopper 7 which is a holding portion, then pass through the front guide roller 8, and are bent with a large diameter roller. It is guided from a certain dancer roller 9-1 to the rear guide roller 10. The curved small diameter roller 6 and the dancer roller 9-1 constitute a curved portion. The stopper 7 can clamp the belt-like mount 1-2 and fix it without slipping, and can pass through it without releasing the clamp. The front guide roller 8 and the rear guide roller 10 are rollers that can freely rotate, but the shaft center is fixed. On the other hand, the dancer roller 9-1 disposed between the front guide roller 8 and the rear guide roller 10 is disposed so as to be movable up and down while keeping the rotation shaft parallel to each roller, and is always a tension applying portion. A downward load is applied by the dancer roller weight 9-2, and tension is applied to the sheet material 1-A. By this tension, the bending small diameter roller 6 and the sheet material 1-A can be brought into close contact with each other in the bending process. In addition, a large number of two-layered sheet films 1-1 have variations in the adhesiveness with the belt-like mount 1-2 and may have weak adhesiveness. However, depending on the dancer roller 9-1, The sheet material 1-A, which has become extremely weak in adhesiveness, also has appropriate adhesiveness for peeling. The diameter of the dancer roller 9-1 is 60 times or more the thickness of the RIM sheet 1-1-2, and the first curved small diameter roller 6-1 and the second curved small diameter roller 6-2 reduced the adhesiveness. Things will not be further reduced.
　その後、シート材料１－Ａは後ガイドローラ１０を通った後、ＲＩＭシート１－１－２、保護シート１－１－１が貼着された面とは反対側の面にナイフエッジ１２が沿うように湾曲される。図３はナイフエッジ１２によりシート材料１－Ａが湾曲され、枚葉状フィルム１－１が帯状台紙１－２より剥離される様子を表している。ナイフエッジ１２の表面と帯状台紙１－２との摩擦は小さく、ナイフエッジ１２をなめらかに滑って通過する。ナイフエッジ１２の上方には搬送ユニット１４が配備されており、ナイフエッジ１２により剥離された枚葉状フィルム１－１を真空吸着式ピックアップ１４－３で吸着、保持する。吸着面は保護シート１－１－１の上面を吸着し、吸着されたまま、左右可動シリンダー１４－１および上下可動シリンダー１４－２にて、搬送され、その他の光学シートと重ね合わせる工程へと運び出される。 After that, the sheet material 1-A passes through the rear guide roller 10, and then the knife edge 12 runs along the surface opposite to the surface to which the RIM sheet 1-1-2 and the protective sheet 1-1-1 are attached. So that it is curved. FIG. 3 shows a state in which the sheet material 1-A is bent by the knife edge 12 and the sheet-like film 1-1 is peeled off from the strip-shaped mount 1-2. The friction between the surface of the knife edge 12 and the belt-like mount 1-2 is small, and the knife edge 12 slides smoothly. A conveyance unit 14 is provided above the knife edge 12 and sucks and holds the sheet-like film 1-1 peeled off by the knife edge 12 by a vacuum suction pickup 14-3. The adsorbing surface adsorbs the upper surface of the protective sheet 1-1-1, and is conveyed while being adsorbed by the left and right movable cylinders 14-1 and the upper and lower movable cylinders 14-2 to be overlapped with other optical sheets. Carried away.
　ナイフエッジ１２を通過し、保護シート１－１－１、ＲＩＭシート１－１－２が剥離されたシート材料１－Ａは、帯状台紙１－２のみになり、ピンチローラ１３へと導かれる。ピンチローラ１３は第一ピンチローラ１３－１と第二ピンチローラ１３－２からなる。この２つのローラは互いの円筒側面で帯状台紙１－２をクランプしており、ダンサーローラ９－１より上流にあるストッパー７によって帯状台紙１－２をクランプした後、モーターによって駆動され、帯状台紙１－２をナイフエッジ１２側から、巻取りシャフト１５へと、すべりなく、引き動かしていく。帯状台紙１－２は、ピンチローラ１３の引っ張り力によりダンサーローラ９－１を上方向に動かしていく。ダンサーローラ９－１はダンサーローラウエイト９－２により下向きの力を付与されているので、ダンサーローラ９－１は帯状台紙１－２にテンションを付与することができる。ダンサーローラ９－１の上下可動範囲の上限、下限にはそれぞれ、ダンサーローラ９－１の感知センサが配備され、下限に感知されれば、ストッパー７が帯状台紙１－２をクランプし、ピンチローラ１３にて帯状台紙１－２を引き動かす。 The sheet material 1-A that has passed the knife edge 12 and from which the protective sheet 1-1-1 and the RIM sheet 1-1-2 have been peeled becomes only the strip mount 1-2, and is guided to the pinch roller 13. The pinch roller 13 includes a first pinch roller 13-1 and a second pinch roller 13-2. These two rollers clamp the belt-like mount 1-2 on the cylindrical side of each other, and after the belt-like mount 1-2 is clamped by the stopper 7 upstream from the dancer roller 9-1, the belt-like mount is driven by a motor. 1-2 is pulled from the knife edge 12 side to the winding shaft 15 without slipping. The belt-like mount 1-2 moves the dancer roller 9-1 upward by the pulling force of the pinch roller 13. Since the dancer roller 9-1 is given a downward force by the dancer roller weight 9-2, the dancer roller 9-1 can apply a tension to the belt-like mount 1-2. A sensor for detecting the dancer roller 9-1 is provided at the upper and lower limits of the upper and lower movable range of the dancer roller 9-1. If the sensor is detected at the lower limit, the stopper 7 clamps the belt-like mount 1-2, and the pinch roller 13, the belt-like mount 1-2 is moved.
　帯状台紙１－２が引き動かされ、ダンサーローラ９－１が上限まで移動してきたことを感知すると、ピンチローラ１３は駆動をやめ、ストッパー７がクランプをやめ、帯状台紙１－２は解放される。解放された帯状台紙１－２はダンサーローラウエイト９－２の下向きの力により、ダンサーローラ９－１が下方向に移動し、移動した分だけ、供給シャフト１１から帯状台紙１－２を引き出す。ダンサーローラ９－１は下限に達すると同じく感知センサにて感知され、一連の動作を繰り返す。 When it is detected that the belt-like mount 1-2 is pulled and the dancer roller 9-1 has moved to the upper limit, the pinch roller 13 stops driving, the stopper 7 stops the clamp, and the belt-like mount 1-2 is released. . The released belt-like mount 1-2 is moved downward by the downward force of the dancer roller weight 9-2, and the belt-like mount 1-2 is pulled out from the supply shaft 11 by the amount of movement. When the dancer roller 9-1 reaches the lower limit, it is similarly detected by the detection sensor and repeats a series of operations.
　ピンチローラ１３で引き出された帯状台紙１－２は台紙巻取り部である巻取りシャフト１５にて、たるみ無く巻き取られ、ロール状の帯状台紙ロール３として回収される。巻取りシャフト１５はモーターによって駆動されている。 The belt-like mount 1-2 drawn out by the pinch roller 13 is taken up without slack by the take-up shaft 15 which is a paper take-up portion, and is collected as a roll-like belt-like mount roll 3. The winding shaft 15 is driven by a motor.
　本発明の評価例を示す。図６、図７により折り返すローラの太さにより剥離性が良好になることを説明する。図６はＲＩＭシート１－１－２を帯状台紙１－２から剥離するための力を測定するための原理図である。保護シート１－１－１を強力粘着シート１７でベース１８と固定し、短く切断したシート材料１－Ａの端部をクランプ１９でクランプし、ＲＩＭシート１－１－２が剥離するまでフォースゲージ２０を水平に引く。その剥離した際のフォースゲージ２０の最大値を剥離に必要な力とした。 An evaluation example of the present invention will be shown. It will be described with reference to FIGS. 6 and 7 that the releasability is improved by the thickness of the turning roller. FIG. 6 is a principle diagram for measuring the force for peeling the RIM sheet 1-1-2 from the strip-shaped mount 1-2. The protective sheet 1-1-1 is fixed to the base 18 with the strong adhesive sheet 17, the end of the short cut sheet material 1-A is clamped with the clamp 19, and the force gauge is applied until the RIM sheet 1-1-2 is peeled off. Pull 20 horizontally. The maximum value of the force gauge 20 at the time of peeling was defined as the force necessary for peeling.
　図７は湾曲小径ローラ６の直径を、φ４ｍｍ、φ６ｍｍ、φ８ｍｍ、φ１０ｍｍ、φ４０ｍｍ、湾曲無し、と変えた時、ＲＩＭシート１－１－２と帯状台紙１－２との剥離性がどのように変化するかを表したものである。縦軸に図６に示す原理で測定した剥離力をとり、横軸に湾曲小径ローラ径をとったものである。湾曲が無い場合はＲＩＭシート１－１－２の剥離に０．７Ｎ以上の力が必要なのに対し、φ１０ｍｍ以下の湾曲小径ローラ６で湾曲させると、０．５Ｎ以下になる。さらに湾曲小径ローラ６の直径を細くするに従い、剥離力も小さくなり、剥離性が良くなっていることが解る。 FIG. 7 shows how the peelability between the RIM sheet 1-1-2 and the strip mount 1-2 is changed when the diameter of the curved small-diameter roller 6 is changed to φ4 mm, φ6 mm, φ8 mm, φ10 mm, φ40 mm, and no curvature. It shows how it changes. The peel force measured according to the principle shown in FIG. 6 is taken on the vertical axis, and the curved small diameter roller diameter is taken on the horizontal axis. When there is no curvature, a force of 0.7 N or more is required to peel off the RIM sheet 1-1-2. On the other hand, if the curved small diameter roller 6 having a diameter of 10 mm or less is curved, the force becomes 0.5 N or less. Further, it can be seen that as the diameter of the curved small diameter roller 6 is reduced, the peeling force is reduced and the peelability is improved.
　本発明は、その精神または主要な特徴から逸脱することなく、他のいろいろな形態で実施できる。したがって、前述の実施形態はあらゆる点で単なる例示に過ぎず、本発明の範囲は特許請求の範囲に示すものであって、明細書本文には何ら拘束されない。さらに、特許請求の範囲に属する変形や変更は全て本発明の範囲内のものである。 The present invention can be implemented in various other forms without departing from the spirit or main features thereof. Therefore, the above-described embodiment is merely an example in all respects, and the scope of the present invention is shown in the claims, and is not restricted by the text of the specification. Further, all modifications and changes belonging to the scope of the claims are within the scope of the present invention.
１－Ａ：シート材料
１－Ｂ：ロール材料
１－１：枚葉状フィルム
１－１－１：保護シート
１－１－２：ＲＩＭシート
１－２：帯状台紙
３：帯状台紙ロール
４：案内ローラ
５：湾曲ローラ
５－１：湾曲前ローラ
５－２：湾曲中ローラ
５－３：湾曲後ローラ
６：湾曲小径ローラ
６－４：第一湾曲小径ローラ
６－５：第二湾曲小径ローラ
７：ストッパー
８：前ガイドローラ
９－１：ダンサーローラ
９－２：ダンサーローラウエイト
１０：後ガイドローラ
１１：供給シャフト
１２：ナイフエッジ
１３：ピンチローラ
１３－１第一ピンチローラ
１３－２第二ピンチローラ
１４：搬送ユニット
１４－１左右可動シリンダー
１４－２上下可動シリンダー
１４－３真空吸着ピックアップ
１５：巻取りシャフト
１６：剥離装置
１７：強力粘着シート
１８：ベース
１９：クランプ
２０：フォースゲージ 1-A: Sheet material 1-B: Roll material 1-1: Sheet-fed film 1-1-1: Protective sheet 1-1-2: RIM sheet 1-2: Strip mount 3: Strip mount roll 4: Guide roller 5: Curved roller 5-1: Pre-curved roller 5-2: Curved middle roller 5-3: Curved roller 6: Curved small-diameter roller 6-4: First curved small-diameter roller 6-5: Second curved small-diameter roller 7: Stopper 8: Front guide roller 9-1: Dancer roller 9-2: Dancer roller weight 10: Rear guide roller 11: Supply shaft 12: Knife edge 13: Pinch roller 13-1 First pinch roller 13-2 Second pinch roller 14: Transport unit 14-1 Left and right movable cylinder 14-2 Vertical movable cylinder 14-3 Vacuum suction pickup 15: Winding shaft 16: Peeling device 17: Strong adhesive sheet 18: Base 9: clamp 20: Force gauge

Claims (6)

  1. 　枚葉状フィルムが貼着されている帯状台紙を供給する供給部と、前記枚葉状フィルムを前記帯状台紙より剥離する剥離部と、前記供給手段と剥離部との間に配置され、前記帯状台紙に所定のテンションを付与するテンション付与部と、前記テンション付与部と供給部との間に配置され、前記帯状台紙を保持する保持部と、前記帯状台紙を巻き取る台紙巻取り部と、前記帯状台紙を駆動する駆動部とを含むフィルム剥離装置において、前記供給部と前記保持部との間に配置され、前記枚葉状フィルムを内側に、前記帯状台紙を外側に所定の曲率半径以下に湾曲させる湾曲小径ローラと、前記湾曲小径ローラの次工程に配置され、前記帯状台紙を外側に所定の曲率半径以上に湾曲させる湾曲大径ローラとを有する湾曲部を含むことを特徴とするフィルム剥離装置。 A supply unit that supplies a belt-like mount on which a sheet-like film is attached, a peeling unit that peels the sheet-like film from the belt-like mount, and a supply unit and a peeling unit, are arranged between the supply unit and the peeling unit. A tension applying unit that applies a predetermined tension; a holding unit that is disposed between the tension applying unit and the supply unit and that holds the belt-like mount; a mount winding unit that winds the belt-like mount; and the belt-like mount In the film peeling apparatus including a driving unit that drives the curved portion, the bending unit is disposed between the supply unit and the holding unit, and curves the sheet-like film inward and the belt-like mount outwardly to a predetermined radius of curvature or less. A curved portion having a small-diameter roller and a curved large-diameter roller that is arranged in the next step of the curved small-diameter roller and curves the strip-shaped mount outwardly to a predetermined radius of curvature or more. Irumu peeling device.
  2. 　前記テンション付与部が前記帯状台紙に付与するテンションの大きさは、４Ｎ以上かつ前記帯状台紙が破断するテンション未満であることを特徴とする請求項１に記載のフィルム剥離装置。 2. The film peeling apparatus according to claim 1, wherein the tension applied by the tension applying unit to the belt-like mount is 4N or more and less than a tension at which the belt-like mount is broken.
  3. 　前記枚葉状フィルムは、両面に粘着層を有し、片面を前記帯状台紙に貼り付けられた第一のフィルムと、前記帯状台紙の反対側の前記第一のフィルムの粘着層を保護する第二のフィルムとの二層から成り、前記第一のフィルムと前記帯状台紙との間から前記枚葉状フィルムを剥離することを特徴とする請求項１または２に記載のフィルム剥離装置。 The sheet-like film has an adhesive layer on both sides, and a second film that protects the adhesive layer of the first film on one side of the belt-like mount and the first film on the opposite side of the belt-like mount. The film peeling apparatus according to claim 1, wherein the sheet-like film is peeled from between the first film and the belt-like mount.
  4. 　前記湾曲部の湾曲小径ローラの直径が、前記第一のフィルムの厚みに対して、６０倍未満であることを特徴とする請求項３に記載のフィルム剥離装置。 The film peeling apparatus according to claim 3, wherein a diameter of the curved small-diameter roller of the curved portion is less than 60 times the thickness of the first film.
  5. 　前記湾曲部の湾曲大径ローラの直径が、前記第一のフィルムの厚みに対して、６０倍以上であることを特徴とする請求項３または４に記載のフィルム剥離装置。 The film peeling apparatus according to claim 3 or 4, wherein the diameter of the curved large-diameter roller of the curved portion is 60 times or more the thickness of the first film.
  6. 　前記請求項１～５のいずれか１つに記載のフィルム剥離装置において、前記駆動部による駆動を停止させた状態で、前記保持部を解放し、前記テンション付与部にて前記帯状台紙にテンションを付与しながら、前記帯状台紙を前記供給部によって供給し、前記湾曲部を通過させることを特徴とするフィルム剥離装置。 The film peeling apparatus according to any one of claims 1 to 5, wherein the holding unit is released in a state where driving by the driving unit is stopped, and tension is applied to the belt-shaped mount by the tension applying unit. The film peeling apparatus, wherein the belt-like mount is supplied by the supply unit and passes through the curved portion while being applied.
PCT/JP2010/071613 2009-12-02 2010-12-02 Film peeling device WO2011068174A1 (en)

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TWI668175B (en) * 2018-01-04 2019-08-11 日商日東電工股份有限公司 Conveying device for conveying long optical film with slit and continuous manufacturing system of optical display panel
US11167031B2 (en) 2016-09-06 2021-11-09 Sawai Pharmaceutical Co., Ltd. Additive composition for orally disintegrating tablet
CN113651147A (en) * 2021-10-18 2021-11-16 中电科风华信息装备股份有限公司 Membrane cleaning and feeding equipment compatible with coil stock, sheet stock and bare material
CN113858763A (en) * 2021-09-18 2021-12-31 深圳市创新特科技有限公司 Film tearing roll rod for tearing circuit board protective film and film tearing machine
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CN115123639B (en) * 2022-07-31 2024-06-04 北京国金源富科技有限公司 Automatic labeling issuing equipment of implanted label and cable production system

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