JP2004345354A - Method and apparatus for laminating film - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and an apparatus for detecting a position of a film which can exactly detect a pattern area while supplying the pattern area formed on a translucent support film in the lengthwise direction of the pattern film. <P>SOLUTION: The pattern film 2 is supplied in the lengthwise direction with a supply means, and during supplying the film a downstream end 75 or an upstream end 76 in the supplying direction of the pattern area formed on the pattern film is detected with a position detector detecting the pattern area. A downstream end or an upstream end in the transferring direction of a base plate transferred with a transferring means is detected. The ends 75 and 76 of the pattern area 3a are exactly positioned in the predetermined area of the base plate transferred with the transferring means and are laminated. Accordingly there is no fear of increase of accumulated error of dimensional accuracy of the pattern area 3a, dimensional accuracy of the base plate and accuracy of cutting position with a cutter, and then the lamination position can be exactly maintained. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a film position detection method and apparatus for detecting the position of a pattern region of a pattern film in which light-transmitting pattern regions are sequentially formed at intervals on a long light-transmitting support film.

  Such a pattern film is laminated and adhered to a substrate, and is used for, for example, an optical filter installed on a screen of a plasma display device. The support film and the pattern region are both light-transmitting, and thus the pattern film as a whole is light-transmitting. With this optical filter, electromagnetic waves and near-infrared rays are blocked in the pattern area in the effective visual field range. The pattern region is made of, for example, a thin film of silver, gold, or the like, and is translucent.

  In order to detect the pattern area, a configuration is used in which light is irradiated vertically from one surface side of the pattern film supplied in the longitudinal direction to the surface, and light transmitted through the pattern film is received on the other surface side. It will be easily realized by those skilled in the art. However, in such a configuration, both the support film and the pattern area are light-transmitting, and therefore, it is difficult to accurately detect the pattern area during feeding while feeding in the longitudinal direction of the pattern film.

  An object of the present invention is to provide a pattern position formed on a translucent support film, while feeding the pattern film in the longitudinal direction, and a film position detection method capable of reliably detecting the pattern region and It is to provide a device.

The present invention is a plurality of pattern regions having a light-transmitting pattern at intervals in the long direction of the long light-transmitting support film, a pattern film sequentially formed, supplying in the long direction,
Irradiate light obliquely toward one surface of the pattern film,
The light from the other surface that has passed through the pattern film is reflected by a reflector and guided to the other surface,
Receiving the reflected light on the one surface side,
A film position detection method characterized by detecting a change in intensity of received light to detect a pattern area.

The present invention also provides a pattern film in which a plurality of pattern regions having a light-transmitting pattern at intervals in the long direction of the long light-transmitting support film are sequentially formed in the long direction. Supply means;
Laser light emitting means disposed on one surface side of the pattern film and irradiating the laser light obliquely toward the one surface in a virtual plane perpendicular to the supply direction,
A reflector that is disposed on the other surface side of the pattern film and reflects laser light from the other surface that has passed through the pattern film and reflects toward the other surface in the virtual plane,
A laser light receiving unit 52 disposed on the one surface side of the pattern film, receiving the laser light passing through the pattern film from the reflecting mirror, and deriving an electric signal having a signal level corresponding to the intensity of the received laser light,
A film position detecting device, comprising level change detecting means 57 and 70 for detecting a change in the signal level of the laser light receiving means.

  According to the present invention, during the longitudinal supply of the pattern film 2 formed by forming the light-transmitting pattern region on the light-transmitting support film, one of the surfaces of the pattern film is inclined at a predetermined angle which is not vertical. Light such as laser light is irradiated at an angle α. On the other surface of the pattern film, light passing through the pattern film is reflected by a reflecting mirror. After passing through the pattern film again, the one surface receives the reflected light passing through the pattern film. By detecting a change in the intensity of the received light, the position of the pattern area 3a is detected.

  By passing the light obliquely to the surface of the pattern film, the light transmission length can be lengthened, and the light reflected by the reflecting mirror also passes obliquely. Thus, the path of light passing through the pattern film can be made as long as possible. Therefore, the change in the intensity of the received light depending on the presence or absence of the pattern region on the support film can be made as large as possible, and the detection of the pattern region can be ensured.

  The optical path of the laser beam exists in the virtual plane 54 perpendicular to the direction in which the pattern film is supplied, that is, the lengthwise direction of the pattern film. As a result, the laser light from the laser light emitting means and the light reflected by the reflecting mirror exist in the virtual plane, and therefore, the presence or absence of the pattern area of the pattern film being supplied is accurately detected, and the position of the pattern area is accurately determined. Can be detected.

Further, the present invention provides a length sensor for detecting the supply length of the pattern film by the pattern film supply means,
And calculating means responsive to the output of the level change detection means and the output of the length sensor for calculating the position where the downstream or upstream ends 75, 76 in the supply direction of the pattern area exist in the lengthwise direction of the pattern film. Features.

  According to the present invention, the length at which the pattern film is supplied by the length sensor is detected, and the supply direction downstream end 75 or the front end of the pattern area, or the supply direction upstream end 76 or the rear end, Detected by the level change detecting means 57, 70. Thus, by obtaining the output of the length sensor corresponding to the position of the pattern film in the supply direction detected by the level change detecting means, the position of the pattern area in the long direction of the pattern film can be accurately detected.

Further, according to the present invention, the pattern film supply means guides and supplies by a plurality of guide members arranged at intervals in the supply direction having a rotation axis perpendicular to the supply direction,
The laser light emitting means is disposed between two guide members that stretch the pattern film.

  According to the present invention, one of the plurality of guide members constituting the pattern film supply means is a guide roll 81 and the other is a pattern film which is a suction member 47 for vacuum-suctioning and transporting the pattern film. Alternatively, in another embodiment, the pattern film may be stretched by two guide rolls, or may be realized by another guide member.

  The pattern film stretched between the two guide members may be displaced in the thickness direction and cause so-called flutter. Even if such flapping occurs, since the optical path exists in the virtual plane 54 perpendicular to the supply direction 48, and thus to the longitudinal direction, even if the pattern film is displaced in the thickness direction, it is caused by the presence or absence of the pattern area. The change in the signal level of the laser light receiving means can be accurately detected, and there is no possibility of erroneous detection.

  In place of the laser light used for detecting the pattern region of the present invention, visible light or light having another wavelength may be used.

Further, the present invention provides a plurality of pattern regions having a light-transmitting pattern at intervals in the long direction of the long light-transmitting support film, with respect to the pattern film sequentially formed, in the long direction. Move the moving object,
From the laser emitting means provided on the moving body, irradiate light obliquely toward one surface of the pattern film,
The light from the other surface that has passed through the pattern film is reflected by a reflector provided on the moving body and guided to the other surface,
With a laser receiving means that can also be received by the moving body, the reflected light is received on the one surface side,
A film position detection method characterized by detecting a change in intensity of light received by a laser light receiving means and detecting a pattern area.

Further, the present invention provides a plurality of pattern regions having a light-transmitting pattern at intervals in the long direction of the long light-transmitting support film, with respect to the pattern film sequentially formed, in the long direction. A moving body to move,
Provided on the moving body, disposed on one surface side of the pattern film, in a virtual plane perpendicular to the supply direction, a laser light emitting unit that irradiates the laser light obliquely toward the one surface,
A reflecting mirror provided on the moving body, disposed on the other surface side of the pattern film, for reflecting laser light from the other surface passing through the pattern film and reflecting toward the other surface in the virtual plane; When,
A laser beam is provided on the moving body, is disposed on the one surface side of the pattern film, receives a laser beam passing through the pattern film from the reflecting mirror, and derives an electric signal having a signal level corresponding to the intensity of the received laser beam. Laser receiving means for performing
And a level change detecting means for detecting a change in the signal level of the laser light receiving means.

  According to the present invention, the moving body is not perpendicular to one surface of the pattern film while the moving body is moving with respect to the pattern film 2 configured by forming the light transmitting pattern region on the light transmitting support film. Light such as laser light is emitted at a predetermined oblique angle α. On the other surface of the pattern film, light passing through the pattern film is reflected by a reflecting mirror. After passing through the pattern film again, the one surface receives the reflected light passing through the pattern film. By detecting a change in the intensity of the received light, the position of the pattern area 3a is detected.

  By passing the light obliquely to the surface of the pattern film, the light transmission length can be lengthened, and the light reflected by the reflecting mirror also passes obliquely. Thus, the path of light passing through the pattern film can be made as long as possible. Therefore, the change in the intensity of the received light depending on the presence or absence of the pattern region on the support film can be made as large as possible, and the detection of the pattern region can be ensured.

  The optical path of the laser beam exists in the virtual plane 54 perpendicular to the direction in which the pattern film is supplied, that is, the lengthwise direction of the pattern film. As a result, the laser light from the laser light emitting means and the light reflected by the reflecting mirror exist in the virtual plane, and therefore, the presence or absence of the pattern area of the pattern film being supplied is accurately detected, and the position of the pattern area is accurately determined. Can be detected.

Further, the present invention is a movement amount detection sensor that detects the movement amount when the moving means moves with respect to the pattern film,
And calculating means responsive to the output of the level change detection means and the output of the length sensor for calculating the position where the downstream or upstream ends 75, 76 in the supply direction of the pattern area exist in the lengthwise direction of the pattern film. Features.

  According to the present invention, the moving amount when the moving body moves with respect to the pattern film is detected by the moving amount detecting sensor, and the end 75 of the pattern area in the supply direction downstream, that is, the front end, or the end in the supply direction upstream. 76, that is, the rear end is detected by the level change detecting means 57, 70. Thus, by obtaining the output of the movement amount detection sensor corresponding to the movement amount of the moving body in the supply direction detected by the level change detection means, the position of the pattern area in the long direction of the pattern film can be accurately detected. .

  Further, the present invention is characterized in that the angle α between the optical axis of the laser light from the laser light emitting means and the one surface of the pattern film is selected to be 30 to 60 degrees.

  According to the present invention, the angle α formed by the laser light is preferably 30 to 60 degrees, and if it is less than 30 degrees, it becomes difficult to arrange the laser emitting means and the laser receiving means very close to the pattern film, and A problem arises. In the range of the angle α exceeding 60 degrees, the path length of the pattern film through which the laser beam passes cannot be sufficiently increased, and the detection of the pattern region may be inaccurate.

  Further, the invention is characterized in that the laser emitting means irradiates a laser beam to a central portion in the width direction of the pattern film.

  According to the present invention, the central portion in the width direction of the pattern film is irradiated with laser light. When the pattern area is displaced by angular displacement around a virtual line vertically penetrating the pattern film, as one comparative example, when irradiating the laser beam to one end in the width direction of the pattern film, and the other end in the width direction of the pattern film When the laser beam is irradiated on the pattern area, the detection result of the pattern area varies. On the other hand, in the present invention, as described above, the pattern region is angularly displaced and displaced around a virtual line vertically penetrating the pattern film by irradiating the laser beam to the center portion in the width direction of the pattern film. Even in this case, the average position of the pattern area can be detected.

  According to the present invention, light such as laser light is obliquely irradiated from one surface of a pattern film in which light-transmitting pattern regions are sequentially formed on a light-transmitting support film at intervals and reflected on the other surface. The light reflected by the mirror passes through the pattern film again and is received by the one surface, so that the path length of the light passing through the pattern film can be made as long as possible. Therefore, during the supply of the pattern film, the intensity of the received light generated by the presence or absence of the pattern area can be changed by a large amount. Therefore, the presence or absence of the pattern area can be accurately detected.

  FIG. 1 is a simplified plan view of a pattern film 2 which is a laminated film according to a first embodiment of the present invention. In the pattern film 2, a plurality of pattern regions 3a are sequentially formed at intervals in the supply direction 21, which is a long direction thereof. The length L21 along the longitudinal direction of the pattern region 3a formed on the pattern film 2 is set to be substantially equal to a predetermined first length L210. The length L22 along the longitudinal direction of the blank portion 244 between the pattern regions 3a adjacent in the longitudinal direction is set to be substantially equal to a predetermined second length L220.

  FIG. 2 is an example of a simplified cross-sectional view showing the entire configuration of the first embodiment of the present invention. The film 16 with an adhesive is laminated on at least one surface of the substrate 1 via the layer of the adhesive 3 in the pattern film 2 by the laminating apparatus shown in FIG. The support film 2a, the pattern region 3a, and the adhesive 3 are all translucent, may be colored or colorless, and have the property of transmitting light. As translucent. The separate film 4 may be light-transmitting or light-shielding.

  FIG. 3A is a cross-sectional view showing an example of the pattern film 2 in the embodiment shown in FIGS. On the support film 2a, a pattern region which is a layer indicated by reference numeral 3a is formed. The pattern region 3a may be, for example, a sputtered layer, a layer such as a metal thin film, or a layer having another configuration. The adhesive 3 is formed on the pattern area 3 a and is protected by the separate film 4.

  FIG. 4A is a cross-sectional view showing an example of the pattern film 2 of another embodiment in the embodiment of FIGS. Another form of the pattern film includes a base film 300 realized by a resin film such as a PET resin. The first functional film is formed on the surface of the base film 300 in the thickness direction A1. For example, the first functional film becomes the conductive thin film 301 used for an electromagnetic wave shield. The conductive thin film 301 may be a sputtered layer, a layer such as a metal thin film, a conductive mesh layer, or a layer constituting other components. The second functional film 302 is formed partially on the surface of the first functional film in the thickness direction A1. Note that the second functional film 302 is attached to the first functional film 301 via an adhesive 304. For example, the second functional film 302 is an AR (Anti reflection) film for preventing reflected light. The functional film with adhesive 305 constituted by the second functional film 302 and the adhesive 304 may be a known functional film such as an anti-glare film or an anti-fouling film in addition to the above-described anti-reflection film. Can be used. In this case, the area where the functional film with adhesive 305 is formed is the pattern area 3a. A separate film 4 is adhered to the surface of the other base A2 in the thickness direction A2 via an adhesive layer 3.

  FIG. 5 is a plan view showing the pattern film 2 shown in FIG. FIG. 6 is a cross-sectional view taken along the line S4-S4 of FIG. 4, and FIG. 7 is a cross-sectional view taken along the line S7-S7 of FIG. In the pattern film 2, a plurality of AR films 302 are formed side by side in the longitudinal direction, and the AR films 302 are formed at intervals in the longitudinal direction at intervals L100. In this case, the region where the AR film 302 is adhered to the support film 2a including the base film 300 and the conductive thin film 301 is the pattern region 3a. Such a pattern film 2 is cut in the width direction between adjacent AR films 302 and is attached to each substrate 1.

  The substrate 1, the separate film 4, and the film 16 with an adhesive will be described. Examples of the substrate 1 include a glass plate, a resin sheet, a metal foil, and the like, or a flat plate of a combination thereof. Regardless of the material, the substrate 1 may be in the shape of a single sheet such as a square or a rectangle, or may be a roll wound around a core.

  The size and thickness of the substrate 1 to which the present invention can be applied are not particularly limited. When the shape is a square or a rectangle, one side may be about 10 to 500 cm.

  When the substrate 1 is a metal foil, examples of the material include stainless steel, aluminum, copper, zinc, nickel, titanium, tin, silver, alloys containing these, oxides thereof, and the like.

  When the substrate 1 is a resin sheet, its material may be a thermosetting resin such as a phenol resin, a melamine resin, an epoxy resin, a polyimide resin, a polyethylene, a polypropylene, a polyester resin, a polycarbonate resin, a polyimide resin, a polyether resin, or a polyether resin. A thermoplastic resin such as an ether ether resin may be used. These resin sheets may contain a heat stabilizer, an ultraviolet adsorbent, an antioxidant, an antistatic agent, a coloring agent, an inorganic filler, a plasticizer, and the like.

  The substrate 1 may be a laminate of the above materials. The pattern film 2 is formed in a long band shape in which the adhesive 3 of the film 16 with an adhesive is covered with a separate film 4 that can be peeled off, and as shown by reference numeral 2b in FIG. Supplied and supplied. The film 16 with an adhesive is formed by forming a layer of the adhesive 3 on the support film 2a. The separate film 4 adheres to the adhesive 3 and the support film 2a or the conductive thin film 301 or the second functional film 302 as the first functional film when the above-mentioned roll-shaped raw material is used. It is provided to prevent adsorption of dust, moisture, etc. existing in the environment in addition to prevention. Since the separate film 4 is peeled at the time of sticking, it preferably has an easy peeling function. As the film 16 with an adhesive, at least one surface of a resin film which is a support film 2a as shown in FIG. 3 or a support film 2a which is a composite of a resin film 300 and a metal foil laminate 301 as shown in FIG. Preferably, a layer in which a layer of the pressure-sensitive adhesive 3 is disposed is used. The pressure-sensitive adhesive 3 is formed directly on an adherend such as the support film 2a by a method such as coating, and then a separate film is adhered to protect the pressure-sensitive adhesive 3, or the pressure-sensitive adhesive 3 is formed into a separate film 4 shape. After the formation, it is formed on a support film 2a as an adherend by a transfer cell method.

  As the layer of the pressure-sensitive adhesive 3, one formed on at least one surface of the support film 2a, preferably one formed on one surface is preferably used. The substrate 1 and the film 16 with an adhesive are laminated via the layer of the adhesive 3.

  The separate film 4 is used from the viewpoint of protecting the layer of the pressure-sensitive adhesive 3 and preventing contamination of the substrate 1 by the layer of the pressure-sensitive adhesive 3, and an easily peelable film is used. Of course, a film having easy releasability on only one side is preferably used, but in this case, the surface having easy releasability is located on the side of the adhesive 3. Prior to laminating the separate film 4 on the substrate 1, the separate film 4 is peeled off.

  As shown in FIG. 3, when the support film 2a of the film 16 with an adhesive is a resin film, the material of the resin film is polyethylene, ethylene-vinyl acetate copolymer, polyester resin, ethylene-acrylic acid copolymer. And an ethylene-alkyl acrylate copolymer. The layer of the pressure-sensitive adhesive 3 formed on at least one surface of the support film 2a is formed of an alkyl acrylate-based pressure-sensitive adhesive. The layer of the pressure-sensitive adhesive 3 is formed by applying and drying a solution of the pressure-sensitive adhesive 3 or a lactic acid solution on at least one surface of the support film 2a.

  In the present invention, the “adhesive” includes an adhesive. In the present embodiment, the layer of the pressure-sensitive adhesive 3 is a transparent pressure-sensitive adhesive layer having a light-transmitting property. The layer of the transparent pressure-sensitive adhesive may be a layer made of a pressure-sensitive adhesive sufficiently transparent to visible light, and the material is not particularly limited. Examples of the adhesive include polyvinyl adhesives such as acrylic adhesives, silicone adhesives, urethane adhesives, polyvinyl butyral (PVB) adhesives, and ethylene-vinyl acetate adhesives (EVA, ethylene-vinyl alcohol). Examples include ether, saturated amorphous polyester, and melamine resin. In addition, as long as it has a practical adhesive strength, it may be a film or a liquid. As the pressure-sensitive adhesive, a pressure-sensitive pressure-sensitive adhesive on a sheet can be suitably used, and among them, an acrylic pressure-sensitive adhesive is widely used. In the present embodiment, an acrylic pressure-sensitive adhesive manufactured by Tomoe Paper is used as the pressure-sensitive adhesive.

  As shown in FIG. 4, when the support film 2a of the film 16 with an adhesive is a resin-metal foil laminate, the material of the resin film of the support film 2a may be polyester resin, polyimide resin, polyether resin, or the like. A resin film is mentioned. Examples of the metal foil include stainless steel, aluminum, copper, zinc, nickel, titanium, tin, silver, an alloy containing them, and a laminate thereof with an oxide thereof. The thickness of the resin film as the support film 2a forming the laminate is about 20 to 500 μm, and the thickness of the metal foil is about 0.1 nm to 30 μm. Examples of a method of laminating a metal foil on the resin film include a sputtering method described in JP-A-10-217380 (Japanese Patent No. 3004222) and a method in which a pattern is formed by etching. An adhesive layer is formed on at least one surface of these, usually on the resin film side. The thickness of the support film 2a of the film 16 with an adhesive may be about 20 to 500 μm, and the thickness of the layer of the adhesive 3 may be about 5 to 100 μm.

  Examples of the separate film 4 adhered to the surface of the pressure-sensitive adhesive 3 of the film 16 with a pressure-sensitive adhesive include resin films such as polyethylene, polypropylene, and polyethylene terephthalate. The thickness of the separate film 4 is about 10 to 200 μm. These films 2 are in a state of being rolled around a core as shown by reference numeral 2b in FIG.

  FIG. 8 is a simplified perspective view of the pattern film 2. A plurality of pattern regions 3a are formed on the support film 2a at intervals in the longitudinal direction.

  FIG. 9 is a simplified perspective view of a pattern film 2 according to another embodiment of the present invention. In the pattern film 2 of FIG. 5 as well, a plurality of pattern regions 3a are sequentially formed at intervals in the longitudinal direction of the support film 2a. In the case of the pattern film 2 shown in FIG. 3 described above, the pressure-sensitive adhesive 3 on the side of the separate film 4 is applied to the pattern film 2 shown in FIG. 8 and FIG. Is formed on the entire surface of one side A1 in the thickness direction, and the adhesive 3 is covered with a separate film 4. In the case of the pattern film 2 shown in FIG. 4 described above, the pressure-sensitive adhesive 3 on the separate film 4 side is formed entirely on the surface of the other side A2 in the thickness direction of the support film 2a. It has a configuration to cover.

  For example, in the pattern film 2 of FIG. 8, the pattern region 3a is a thin film formed by etching gold or silver to form a mesh and is translucent. The pattern region 3a of the pattern film 2 in FIG. It may be a sputtered layer or the like. Such a pattern region 3a constitutes a part of an optical filter arranged in front of the screen of the plasma display device, and has a function of shielding electromagnetic waves and near infrared rays. In this case, the support film 2, the adhesive 3, and the substrate 1 are also translucent. Specifically, in the case shown in FIG. 4, the AR film 302, the adhesive 304 for attaching the AR film 302 and the conductive thin film 301, the conductive film 301, the base film 300, the separate film 4 and the base film 300 The adhesive 3 to be stuck, the substrate 1, and the separate film 4 are also translucent. The pattern region 3a may also have a configuration that performs another function, for example, may perform an antireflection function, or may achieve another function.

  A first method / apparatus for laminating the film 16 with an adhesive of the present invention will be described with reference to the drawings, particularly FIG. In the film with an adhesive 16, the adhesive 3 is provided on one surface of the support film 2 a, and the separate film 4 is provided on the surface of the adhesive 3. The film 16 with an adhesive used in the present invention is preferably one in which the adhesive 3 is disposed on one surface of the support film 2a as described above. The film 16 with an adhesive is supplied as a raw film 2b with an adhesive as shown in FIG. However, the present invention is not limited to this, and there is no problem even if the pressure-sensitive adhesive 3 is not formed. In such a case, an adhesive or the like may be applied to the support film 2a or the surface of the substrate 1 before being supplied to the laminator device.

  The roll-shaped laminated film blank 2 b is guided by guide rolls 19, the tension of the pattern film 2 is controlled, and supplied in the supply direction indicated by the arrow 21, and the separate film 4 is peeled by the roll-shaped peeling body 7. Is done. The separate film 4 is pulled by a pair of pinch rolls 9 a and 9 b to apply tension, and is wound around the core 6. When the separate film 4 is pulled in the direction 22 substantially opposite to the supply direction 21, the laminated film 2, that is, the film 16 with the adhesive is supplied in the supply direction 21.

  Downstream of the release body 7 and the guide roll 81, a pattern area detection for detecting a position in a longitudinal direction of the pattern area 3a of the adhesive-coated film 16 from which the separate film 4 of the pattern film 2 as a laminated film has been peeled off. A position detecting device 46 serving as a means is disposed. A suction member 47 is provided further downstream of the position detection device 46. The suction member 47 is connected to a vacuum source 82 via an on-off valve 83, and vacuum-adsorbs the surface of the film 16 with the adhesive on the side opposite to the pattern region 3a of the support film 2a and the adhesive 3 so that the film 16 is It is configured to repeat the operation of transporting in the supply direction 48 to the vicinity of the laminating rolls 8a and 8b and supplying the same, and then returning upstream to the vicinity of the position detection device 46. The cutter 10 serving as a cutting unit may have, for example, a rotary blade, and is disposed downstream of the peeling portion 18 of the peeling body 7 and the position detecting device 46 in the supply direction 21. The guide roll 81 and the suction member 47 each serve as a guide member, and the pattern area 3a of the film 16 with the adhesive stretched between the guide roll 81 and the suction member 47 detects the position where the pattern area 3a functions as the pattern area detection means. Detected by device 46.

  An end 1 a on the downstream side in the transport direction 23 of the substrate 1 is detected by the downstream end sensor 12. The upstream end 1 b of the substrate 1 is detected by an upstream end sensor 13. These sensors 12 and 13 constitute an adhered object detection unit, and are arranged on a conveyance path between the input conveyance unit 11 and the laminating rolls 8a and 8b. Discharge transport means 14 is provided downstream of the laminating rolls 8a and 8b in the transport direction 23, and the substrate 1 on which the film 16 with the adhesive is laminated is transported and discharged. These sensors 12 and 13 constitute a substrate detection unit.

  FIG. 10 is a cross-sectional view of the position detection device 46. FIG. 11 is a diagram showing a configuration of the position detection device 46. FIG. 11A is a simplified plan view of the film 16 with an adhesive. FIG. 12B is a simplified cross-sectional view for explaining the operation for detecting the pattern region 3a of the film 16 with the adhesive of the pattern film 2 corresponding to FIG. FIG. 12C is a simplified cross-sectional view for explaining the operation for detecting the pattern region 3a of the film 16 with the adhesive of the pattern film 2 corresponding to FIG. 4 by the position detection device 46. .

  The film 16 with an adhesive is supplied in the elongate direction which is the supply direction 21, 48 as shown in FIG. The laser light emitting means 51 and the laser light receiving means 52 are arranged on one surface (the upper surface of FIGS. 10 and 11 (2 and 11 (3))) of the film 16 with the adhesive. The laser emitting means 51 emits the laser light 53 toward the one surface 56 of the film 16 with an adhesive in an imaginary plane 54 perpendicular to the supply directions 21 and 48 at an angle α with the surface 56 of the film 16 with the adhesive. Irradiation is performed from one side of 16 (the right side of FIGS. 10, 11 (2) and 11 (3)).

  On the other surface 57 (below FIGS. 10, 11 (2) and 11 (3)) of the film 16 with the adhesive, a reflecting mirror 58 is arranged. The reflecting mirror 58 reflects the reflected light 59 of the laser light 53 passing through the film 16 with the adhesive toward the other surface 57 in the virtual plane 54, and the reflected light 59 Passes through the one surface 56 and is received by the laser receiving means 52.

  11 (1), 11 (2) and 11 (3), the position 61 where the laser beam 53 from the laser emitting means 51 is incident on one surface 56 of the film 16 with an adhesive, and the other surface 57 62, a position 63 where the reflected light 59 enters the other surface 57 and a position 64 where the reflected light 59 exits the one surface 56. Is selected, for example, from 30 to 60 degrees. In this way, the path length between the positions 61 and 62 of the laser beam 53 and the path length of the positions 63 and 64 of the reflected light 59 can be made sufficiently longer than the case where α = 90 degrees by selecting the angle α. In addition, not only the incident laser light 53 but also the reflected light 59 passes through the film 16 with the adhesive at substantially the same angle as the angle α. The laser light emitting means 51 may be disposed on one side in the thickness direction or on the other side in the thickness direction with respect to the film 16 with the adhesive.

  Therefore, the amount of change in the intensity of the laser light received by the light receiving element 52 can be made as large as possible depending on the presence or absence of the plurality of pattern regions 3a formed at intervals in the longitudinal direction of the support film 2a. The laser receiving means 52 derives an electric signal level corresponding to the intensity of the received laser light, for example, an electric signal of resistance, voltage or current.

  Referring again to FIGS. 3 and 4, the electric signal derived from the laser receiving means 52 of the film 16 with the adhesive after the separation film 4 of the pattern film 2 is peeled off is supplied by the supply of the film 16 with the adhesive. , FIG. 3 (2), and FIG. 4 (2). In the area where the pattern area 3a is formed on the film 16 with the adhesive, a slight decrease in the transmittance of the laser light by the pattern area 3a causes the low-level electricity 65 of FIGS. 3 (2) and 4 (2) to be reduced. A signal is derived. When the pattern area 3a does not exist and the laser beam is transmitted through the portion composed of the support film 2a and the adhesive 3, the laser light receiving means 52 has the high level 66 shown in FIGS. 3 (2) and 4 (3). Derive the signal.

  When the output of the laser light receiving means 52 is differentiated by a differentiating circuit 57 described later, the differentiated circuit 57 can obtain differential waveforms shown in FIGS. 3 (3) and 4 (3). Differential pulses 68 and 69 are obtained corresponding to the level change of the electric signal between the low level 65 and the high level 66 described above.

  The level discrimination circuit 70 discriminates the output of the differentiating circuit 57 at a predetermined discrimination level 71, 72. Thus, when the differential pulse 68 is equal to or higher than the discrimination level 71, the film 16 with the adhesive, that is, the pattern film 2 can detect the front end 75 on the downstream side in the supply direction 21 or 48 of the pattern area 3a. When the differential pulse 69 is lower than the discrimination level 72, that is, when the absolute value of the differential pulse 69 exceeds the absolute value of the discrimination level 72, the rear end portion 76 of the pattern area 3a on the upstream side in the supply direction 21, 48 is detected. can do. In this way, the end portions 75 and 76 of the pattern region 3a can be reliably detected during the supply and conveyance of the film 16 with the adhesive.

  FIG. 12 is a simplified plan view of a product 26 in which the film 16 with an adhesive is adhered to the upper surface of the substrate 1 in FIG. The film 16 with an adhesive is laminated on one surface of the substrate 1 so as to cover the region 24 on the surface of the substrate 1 to be adhered to which the film 16 with an adhesive is stuck. Specifically, the pattern area 3a covers the area 24 set on the substrate. The relative positioning of the film 16 with the adhesive and the substrate 1 in the longitudinal direction, which is the transport direction 23, is performed, and the lamination is performed. Reference numerals 16a and 16b in FIG. 12 indicate a supply direction 48, which is a longitudinal direction of the film 16 with an adhesive, and thus a downstream end and an upstream end in the transport direction 23 of the substrate 1, respectively. 1 is located substantially equal to the downstream end 1a and the upstream end 1b or inward in the longitudinal direction (the left-right direction in FIG. 12). In the region 24 of the substrate 1, a pattern region 3a having a function of shielding electromagnetic waves and near-infrared rays and the like is accurately overlapped and positioned.

  In the blank region 44 where the pattern region 3a is not formed in the laminated film 2, the position detection device 46 detects the ends 75 and 76 of the pattern region 3a as described above, and At a central position 45 (see FIG. 1) in the supply direction 21, the processing circuit 31 operates the cutter 10, whereby the cutter 10 cuts at the position indicated by the reference numeral 45 with the laminated film 2 stopped. . These ends 75 and 76 exist in a virtual plane perpendicular to the longitudinal direction of the film 16.

  FIG. 13 is a block diagram showing an electrical configuration of the first embodiment of the present invention shown in FIGS. A processing circuit 31 realized by a macro computer constitutes a control unit, and receives an output from an input unit 32 such as a keyboard operated by an operator, and further receives each output from the sensors 12 and 13.

  A length sensor 33 is provided to detect the supply length of the pattern film 2 which is a laminated film, the supply length of the film 16 with an adhesive is detected, and the detection result is provided to the processing circuit 31. The length sensor 33 may be configured to detect, for example, the number of rotations of the guide roll 19 or the pinch rolls 9a and 9b, and to detect the supply length of the laminated film 2 corresponding to the number of rotations. May be realized. The processing circuit 31 is supplied with the output of the laser light receiving means 52 described above, and therefore the output of the level discrimination circuit 70.

  FIG. 14 is a simplified side view showing the operation of the first embodiment of the present invention shown in FIGS. The film 16 with the adhesive of the pattern film 2 is attached and laminated on one upper surface of the substrate 1 conveyed by the input / output / conveyance means 11 and 14 while being pinched by the pinch rolls 8a and 8b. The downstream end 75 of the pattern area 3a detected by the position detection device 46 is accurately positioned and aligned in the effective visual field range 24 described above with reference to FIG.

  FIG. 15 is a flowchart for explaining the operation of the processing circuit 31. By setting the substrate 1 in the loading and conveying means 11 and operating the input means 32, the substrate 1 is automatically conveyed in the direction of the pair of laminating rolls 8a and 8b as shown in FIG. At this time, the charging / conveying means 11, the discharging / conveying means 14, and the pair of laminating rolls 8a and 8b are also driven. In step a2, the downstream end 1a of the substrate 1 is detected by the substrate downstream end detection sensor 13 as shown in FIG. 14B, and the substrate 1 is transported between the laminating rolls 8a and 8b driven in step a3.

  When the downstream end portion 1a of the substrate 1 is detected by the substrate upstream end detection sensor 12, the separate film 4 is wound from the film 16 with the adhesive while the separate film 4 is wound around the separate film winding shaft 6 from this signal. The film 16 with the pressure-sensitive adhesive from which the separated film 4 has been peeled off is sent out between the laminating rolls 8a and 8b. The length sensor 33 detects the supply length of the film 16 with an adhesive. During the supply of the film 16 with the adhesive, the position detection device 46 detects the positions of the downstream end 75 and the upstream end 76 in the supply direction 21 of the pattern region 3a by the length sensor as described above. The data is stored in the memory 78 in accordance with the output of 33. Such a length detection operation of the length sensor 33 is shown in step a4 of FIG. 15, and detection of a position corresponding to the lengthwise direction of the pattern area 3a by the position detection device 46 is shown in step a4. . Based on the detected supply length, the suction member 47 guides the adhesive-backed film 16 by vacuum suction to feed the adhesive-backed film 16 from the stop position to the laminate rolls 8a and 8b. It is surely guided between 8a and 8b. When the front end 16a of the film 16 with the adhesive reaches between the laminating rolls 8a and 8b, in step a6, the laminating rolls 8a and 8b are brought close to each other so as to enable lamination as shown in FIG. The laminating rolls 8a and 8b are closed, and lamination with the substrate 1 conveyed between the laminating rolls 8a and 8b is continuously started as shown in FIG.

  The positional relationship between the tip of the substrate 1 and the film 16 with the adhesive is controlled by the position to which the substrate 1 is conveyed to start lamination. The film 16 can be laminated by protruding from the substrate 1 in the longitudinal direction, or conversely, can be laminated from the inside of the substrate 1, that is, a position shifted from the downstream end 1a to the upstream side in the transport direction.

  The upstream end sensor 12 detects the upstream end 1b of the substrate 1 in step a7. The length sensor 33 detects the position of the film 16 with the adhesive in the longitudinal direction during the supply of the film 16, and thereby detects each end 75 of the pattern region 3 a in the longitudinal direction detected by the position detecting device 46. , 76 can be detected. When the substrate 1 is a single sheet such as a square or a rectangle, a film 16 with an adhesive having a length corresponding to the length of the downstream end, which is the rear end, to a desired position is supplied to the laminating rolls 8a, 8b. When this is confirmed, in step a6, the adhesive-attached film 16 is cut by the cutter 10 just before the laminating rolls 8a and 8b as shown in FIG. In a case where the substrate 1 is a long strip-shaped material wound in a roll shape around a core, when it is confirmed that the film 16 with the adhesive is adhered to a desired length of the roll of the substrate 1, a cutter is provided. 10, the film 16 with the adhesive is cut with the labor of the laminating rolls 8a and 8b. The thus-cut film 16 with the adhesive on the downstream side in the transport direction 23 is sandwiched by the laminating rolls 8a and 8b, and is laminated as shown in FIG. After this lamination is completed, in step a10, the process returns to the laminating preparation state for the next substrate 1 similar to that of FIG.

  The processing circuit 31 responds to the output of the length sensor 33 and outputs the output of the position detection device 46 to the positions L41 and L42 where the downstream and upstream ends 75 and 76 of the pattern area 3a are located. It is activated and activated only while traveling the optical path of the device 46. As a result, erroneous detection due to a change in the light transmittance of each end 75, 76 can be avoided.

In another embodiment of the present invention, the upstream end sensor 13 for detecting the end 1b on the upstream side in the transport direction 23 of the substrate 1 may be omitted. In this embodiment, in step a7 of FIG. 11 described above, the length of the transport direction 23 from the downstream end 1a of the substrate 1 is detected in advance by the output of the length sensor 33.
The present invention is capable of the following embodiments.
(1) A plurality of pattern regions having a light-transmitting pattern spaced apart in the long direction of the long light-transmitting support film supply a pattern film sequentially formed in the long direction. Light is irradiated obliquely toward one surface of the pattern film, and light from the other surface that has passed through the pattern film is reflected by a reflecting mirror and guided to the other surface, and the reflected light is reflected on the one surface side. And detecting a pattern area by detecting a change in the intensity of the received light.

  (2) Supply means for supplying a pattern film in which a plurality of pattern regions having a light-transmitting pattern are sequentially formed at intervals in a longitudinal direction of the long light-transmitting support film in a long direction. And a laser emitting unit that is disposed on one surface side of the pattern film and irradiates the laser light obliquely toward the one surface in a virtual plane perpendicular to the supply direction, and on the other surface side of the pattern film. A reflecting mirror disposed to reflect the laser light from the other surface passing through the pattern film and reflecting toward the other surface in the virtual plane; and a reflecting mirror arranged on the one surface side of the pattern film. A laser light receiving means 52 for receiving a laser beam having passed through the pattern film from the device and deriving an electric signal having a signal level corresponding to the intensity of the received laser beam; Position detecting apparatus of a film which comprises a level change detector 57,70 for detecting a change in the signal level of the stage.

  During the supply of the pattern film 2 in which the light-transmitting pattern region is formed on the light-transmitting support film in the longitudinal direction, a laser beam or the like is applied to one surface of the pattern film at a predetermined oblique angle α that is not perpendicular. Of light. On the other surface of the pattern film, light passing through the pattern film is reflected by a reflecting mirror. After passing through the pattern film again, the one surface receives the reflected light passing through the pattern film. By detecting a change in the intensity of the received light, the position of the pattern area 3a is detected.

  By passing the light obliquely to the surface of the pattern film, the light transmission length can be lengthened, and the light reflected by the reflecting mirror also passes obliquely. Thus, the path of light passing through the pattern film can be made as long as possible. Therefore, the change in the intensity of the received light depending on the presence or absence of the pattern region on the support film can be made as large as possible, and the detection of the pattern region can be ensured.

  The optical path of the laser beam exists in the virtual plane 54 perpendicular to the direction in which the pattern film is supplied, that is, the lengthwise direction of the pattern film. As a result, the laser light from the laser light emitting means and the light reflected by the reflecting mirror exist in the virtual plane, and therefore, the presence or absence of the pattern area of the pattern film being supplied is accurately detected, and the position of the pattern area is accurately determined. Can be detected.

  (3) In response to the output of the length sensor for detecting the supply length of the pattern film by the pattern film supply means, and the outputs of the level change detection means and the length sensor, the end 75, downstream or upstream of the pattern area in the supply direction. 76. A film position detecting apparatus, comprising: a calculating means for calculating a position existing in a longitudinal direction of the pattern film.

The length sensor detects the length at which the pattern film is supplied, and the downstream end 75 of the pattern area in the supply direction, ie, the front end, or the upstream end 76, ie, the rear end of the pattern area, is fed to the level change detection means 57, 70 to detect. Thus, by obtaining the output of the length sensor corresponding to the position of the pattern film in the supply direction detected by the level change detecting means, the position of the pattern area in the long direction of the pattern film can be accurately detected.
(4) An angle α between the optical axis of the laser beam from the laser light emitting means and the one surface of the pattern film is selected from 30 to 60 degrees.
The angle α formed by the laser beam is preferably 30 to 60 degrees. If the angle is less than 30 degrees, it is difficult to arrange the laser emitting unit and the laser receiving unit very close to the pattern film, and there is a problem of installation location. . In the range of the angle α exceeding 60 degrees, the path length of the pattern film through which the laser beam passes cannot be sufficiently increased, and the detection of the pattern region may be inaccurate.

  (5) The pattern film supply means guides and supplies by a plurality of guide members arranged at intervals in a supply direction having a rotation axis perpendicular to the supply direction, and the laser light emitting means includes two guide members for stretching the pattern film. A film position detecting device disposed between guide members.

  A plurality of guide members constituting the pattern film supply means may be configured such that one of them is a guide roll 81 and the other is a pattern film which is a suction member 47 for sucking and transporting the pattern film by vacuum suction. In another preferred embodiment, the pattern film may be stretched by two guide rolls, or may be realized by another guide member.

The pattern film stretched between the two guide members may be displaced in the thickness direction and cause so-called flutter. Even if such flapping occurs, since the optical path exists in the virtual plane 54 perpendicular to the supply direction 48, and thus to the longitudinal direction, even if the pattern film is displaced in the thickness direction, it is caused by the presence or absence of the pattern area. The change in the signal level of the laser light receiving means can be accurately detected, and there is no possibility of erroneous detection.
Instead of the laser light used for detecting the pattern area, visible light or light having another wavelength may be used.

  FIG. 16 is a simplified cross-sectional view showing the entire configuration of the second embodiment of the present invention. A film 16 with an adhesive is laminated on at least one surface of the substrate 1 via a layer of the adhesive 3 by the laminating apparatus shown in FIG. In the second embodiment, for example, it is suitably used for attaching the pattern film 2 shown in FIG. In this case, the above-described position detecting device 46 may be arranged on the upstream side in the film supply direction with respect to the peeling body 7 or on the downstream side in the film supply direction. Further, it is preferable that the position detecting device 46 is disposed on the upstream side of the cutter 10 in the film supply direction.

  The method / apparatus for laminating the film 16 with an adhesive of the present invention will be described with reference to the drawings. In the film with an adhesive 16, the adhesive 3 is provided on one surface of the support film 2 a, and the separate film 4 is provided on the surface of the adhesive 3. The film 16 with an adhesive is preferably one in which the adhesive 3 is disposed on one surface of the support film 2a as shown in FIGS. The film 16 with an adhesive is supplied as a film 2b with an adhesive in a state of being wound into a roll. However, the present invention is not limited to this, and there is no problem even if the pressure-sensitive adhesive 3 is not formed. In such a case, an adhesive may be applied to the surface of the base film 2a or the substrate 1 before supplying to the laminator.

  The roll-shaped laminated film blank 2b is guided by a guide roll 19, supplied as indicated by an arrow 21, and the separation film 4 is peeled off by the peeling body 7. The separate film 4 is pulled by a pair of pinch rolls 9 a and 9 b to apply tension, and is wound around the core 6. When the separate film 4 is pulled in the direction 22 substantially opposite to the supply direction 21, the laminated film 2, that is, the film 16 with the adhesive is supplied in the supply direction 21. The cutter 10 serving as a cutting means may have, for example, a rotary blade, and is arranged downstream of, for example, the peeling portion 18 of the peeling body 7 in the supply direction 21, for example, close to the peeling portion 18.

  An end 1 a on the downstream side of the substrate 1 in the transport direction 23 is detected by the upstream end sensor 12. The upstream end 1 b of the substrate 1 is detected by the downstream end sensor 13. These sensors 12 and 13 are arranged on a transport path between the input transport unit 11 and the laminating rolls 8a and 8b. Discharge transport means 14 is provided downstream of the laminating rolls 8a and 8b in the transport direction 23, and the substrate 1 on which the film 16 with the adhesive is laminated is transported and discharged.

  FIG. 17 is a simplified plan view of a product 26 in which the film with an adhesive 16 is attached to the upper surface of the substrate 1 and laminated. The film 16 with an adhesive is laminated so as to cover an area 24 on the surface of the substrate 1 to be adhered to which the film 16 with an adhesive is adhered. According to the present invention, the portion 25 of the adhesive-backed film 16 where the streak failure occurs due to the deformation of the adhesive 3 is present with a predetermined length L1 from the front end 16a of the adhesive-backed film 16, and therefore, The portion 25 where the streak failure occurs exists at a distance L11 from the downstream end 1a of the substrate 1 in the longitudinal direction on the upstream side in the transport direction 23. The portion 25 in which the streak defect occurs exists in the longer direction than the predetermined region 24 of the substrate 1 in the downstream direction in the transport direction 23, and the streak defect portion 25 does not exist in the region 24 in the elongate direction. The relative positioning of the film 16 with the adhesive and the substrate 1 in the longitudinal direction, which is the transport direction 23, is performed, and the laminate is performed. In another embodiment of the present invention, the portion 25 in which the streak failure occurs may be laminated so as to be arranged on the upstream side of the region 24 in the transport direction 23.

  A predetermined area 24 set on the substrate 1 (may be referred to as an effective visual field area 24) is set at an intermediate portion in the longitudinal direction of the substrate 1. That is, the visual field effective region 24 is set at a predetermined first distance L <b> 13 from one longitudinal edge of the substrate 1. The adhesive film 16 is attached so as to cover at least the visual field effective area 24. Therefore, one edge in the longitudinal direction of the pressure-sensitive adhesive film 16 attached to the substrate 1 is disposed outside the effective visual field 24 in the longitudinal direction. That is, the second distance L11 from the long edge of the substrate 1 to the long edge of the film 16 with the adhesive is shorter than the first distance L13. As a result, the long edge in the long direction of the film 16 with the adhesive and the long edge in the long direction of the visual field effective region 24 are formed with a gap in the long direction by a predetermined third distance L12. The other edges in the longitudinal direction are formed in the same manner.

  The streak 25 due to the deformation of the pressure-sensitive adhesive 3 is formed to have a predetermined length L1 from one edge in the longitudinal direction of the film 16 with the pressure-sensitive adhesive. This predetermined length L1 is equal to the distance from the downstream edge of the adhesive-attached film 16 in the supply direction to the peeling portion 18 of the peeling member 7 in a state where the supply of the adhesive-attached film 16 is stopped. The predetermined length L1 is set so as to be shorter than the third distance L12. Further, the streak 25 is separated outward from the one edge of the effective field of view 24 in the longitudinal direction by a predetermined length L14. In this way, the problem that the effective field of view 24 is covered with the film with the adhesive and the streak 25 is formed in the area outside the effective field of view 24 to eliminate the streak 25 inside the effective field of view 24 is solved. be able to. For this reason, in the present embodiment, the predetermined length L1 is stabilized while preventing a variation in the position where the streak 25 is formed. In addition, in order to secure the third distance L12, the accuracy of attaching the substrate 1 and the film 16 with the adhesive was improved. The third distance L12 is set to 2 mm.

  FIG. 18 is a cross-sectional view of the vicinity of the separation body 7, and FIG. 19 is an enlarged cross-sectional view of the vicinity of the separation portion 18 of the separation body 7 shown in FIG. The release body 7 is formed to be thinner toward the downstream in the supply direction 21 of the laminated film 2, and is formed in a knife edge shape or a wedge shape in an imaginary plane parallel to the paper surface of FIGS. 18 and 19 along the supply direction 21. You. The exfoliated body 7 is bent and exfoliated at a sharp angle θ1 at the exfoliation portion 18 with the first guide surface 28 that contacts the outer surface of the separate film 4 and guides the separate film 4 downstream in the supply direction 21. A second guide surface 29 for guiding the separate film 4 as indicated by an arrow 22 in a direction substantially opposite to the downstream of the supply direction 21 is provided. These first and second guide surfaces 28 and 29 form a sharp angle θ1 as shown in FIG. Thus, the peeling section 18 forms a knife edge. The knife edge peeling portion 18 may have a radius in an imaginary plane parallel to the supply direction 21 shown in FIG. 19, for example, having a diameter of 0.1 to 0.5 mmφ, for example, θ1 = 1 to 10 degrees. It is preferably 3 to 7 degrees, whereby the separate film 4 is pulled in the direction of the arrow 22 by the pinch rolls 9a and 9b as described above to apply tension, thereby providing the adhesive-backed film 16 of the laminated film 2. Can be peeled while supplying the laminated film 2 in the supply direction 21.

  The cutter 10 is cut at a position indicated by the reference numeral 10a in a state where the laminated film 2 is stopped, and after this cutting, the laminated film 2 is further supplied by a predetermined length L1. The length L1 is, for example, less than 5 mm, for example, may be 0.1 mm or more, or may be zero.

  FIG. 20 is an enlarged cross-sectional view of the vicinity of the peeling portion 18 of the peeling body 7 corresponding to FIG. In the embodiment shown in FIG. 20, after the adhesive-bonded film 16 is cut by the cutter 10 as shown by the reference numeral 10a, the laminated film 2 is not further supplied, and the above-described length L1 is It is zero.

  The laminating apparatus of the second embodiment has the same position detecting device 46 as that of the first embodiment.

  FIG. 21 is a block diagram showing an electrical configuration of the embodiment of the present invention shown in FIGS. A processing circuit 31 realized by a macro computer constitutes a control unit, and receives an output from an input unit 32 such as a keyboard operated by an operator, and further receives each output from the sensors 12 and 13.

  A length sensor 33 is provided to detect the supply length of the laminated film 2. The detected supply length of the laminated film 2, that is, the film 16 with the adhesive is detected, and the detection result is given to the processing circuit 31. Can be The length sensor 33 may be configured to detect, for example, the number of rotations of the pinch rolls 9a and 9b, and to detect the supply length of the laminated film 2 in accordance with the number of rotations. May be done.

  FIG. 22 is a flowchart for explaining the operation of the processing circuit 31. By setting the substrate 1 on the loading and conveying means 11 and operating the input means 32, the substrate 1 is automatically transported in the direction of the pair of laminating rolls 8a and 8b in step a1 in FIG. The discharge / conveying means 14 and the pair of laminate rolls 8a and 8b are also driven. In step a2, the downstream end 1a of the substrate 1 is detected by the substrate downstream end detection sensor 13, and the substrate 1 is transported between the laminating rolls 8a and 8b driven in step a3.

  The film 16 with the adhesive first produces the peeling film portion 5 from which the separate film 4 has been peeled at the peeling portion 18 which is the tip of the peeling body 7. The release film portion 5 slightly protrudes from the release portion 18 of the release body 7 by a predetermined length L1 in the longitudinal direction.

  The length L1 in the machine direction of the release film portion 5 is 0 to 5 mm as described above. Further, it is preferable that the desired position is controlled within ± 0.5 mm. When the downstream end portion 1a of the substrate 1 is detected by the substrate upstream end detection sensor 12, the separation film 4 is wound around the separation film winding shaft 6 with this signal as a starting point, so that the leading end of the separation body 7 is separated. In the part 18, the separate film 4 is peeled off from the film 16 with adhesive, and the film 16 with adhesive from which the separate film 4 has been peeled is sent out between the laminating rolls 8a, 8b. When the front end 16a reaches the position between the laminating rolls 8a and 8b based on the detected supply length, in step a4, the laminating rolls 8a and 8b are moved close to each other so that lamination can be performed. 8b is closed, and lamination with the substrate 1 conveyed between the laminating rolls 8a and 8b is started continuously.

  The positional relationship between the tip of the substrate 1 and the film 16 with the adhesive is controlled by the position to which the substrate 1 is conveyed to start lamination. The film 16 can be laminated by protruding from the substrate 1 in the longitudinal direction, or conversely, can be laminated from the inside of the substrate 1, that is, a position shifted from the downstream end 1a to the upstream side in the transport direction.

  The upstream end sensor 12 detects the upstream end 1b of the substrate 1. The laminating speed V is VI = 1 to 3 m / min at the start of lamination at the start of laminating, as shown in FIG. 23 described later. It is preferable to increase the speed to 10 to 30 m / min. When the peeling speed V is changed, the pressure-sensitive adhesive 3 may be deformed and peeling marks may be generated. However, in the present invention, the speed change ΔV (= V2−V1) is within ΔV / V = 1/30. It is preferable to control. Within the above range, it has been confirmed by an experiment test of the present inventor that no peeling marks appear at the speed changing portion.

  When the substrate 1 is a single sheet such as a square or a rectangle, a film 16 with an adhesive having a length corresponding to the length of the downstream end, which is the rear end, to a desired position is supplied to the laminating rolls 8a, 8b. At this point, in step a6, the adhesive-attached film 16 is cut by the cutter 10 just before the laminating rolls 8a and 8b. In a case where the substrate 1 is a long strip-shaped material wound in a roll shape around a core, when it is confirmed that the film 16 with the adhesive is adhered to a desired length of the roll of the substrate 1, a cutter is provided. 10, the film 16 with the adhesive is cut with the labor of the laminating rolls 8a and 8b.

  The separation film 4 that is peeled off from the film 16 with the adhesive at the peeling portion 18 that is the tip of the peeling member 7 stops peeling when the film 16 with the adhesive is cut by the cutter 10. In step a7, the length L1 of the adhesive-backed film 16 protruding from the peeling portion 18 of the peeling body 7 at that time is substantially the same as the length before the previous lamination, and the accuracy is ± 0. It is within 5 mm, so that the lamination can always be repeated with the same accuracy every time. The length L1 of the release film portion 5 protruding from the release portion 18 of the release body 7 is governed by the stopping accuracy of the separate film take-off pinch rolls 9a and 9b. In another embodiment of the present invention, the pinch rolls 9 a, 9 b are driven after the cutting, so that the pinch rolls 9 a, 9 b protrude downstream in the supply direction 21 of the peeling section 8 of the film 16 with the adhesive, which is detected by the length sensor 33. It is determined whether the detected length L has reached a predetermined length L1 (L1 ≦ L). When the detected protrusion length L1 is achieved in step a8, the pinch rolls 9a and 9b are stopped in step a9, and the preparation state of the laminate for the subsequent new substrate 1 is completed.

  FIG. 23 is a diagram showing a supply speed V of the laminated film 2 by the pinch rolls 9a and 9b, and thus the film 16 with the adhesive. The supply speed V is controlled by the processing circuit 31. As described above, the transport speed V for laminating the film 16 with the adhesive is increased at times t1 to t2, reaches a predetermined low speed V1, and thereafter is maintained at the low speed V1 at times t2 to t3. Dripping. At times t3 to t4, the speed is further increased, and the transport speed V is set to the high speed V2. At times t5 to t6, the transport speed V is reduced, and is maintained at the low speed V3 at times t6 to t7. In order to improve the stopping accuracy when the peeling is stopped, it is preferable to stop the peeling by lowering to a predetermined speed of V3 = 1 to 10 m / min. At time t7, the pinch rolls 9a and 9b are stopped. The laminating operation is performed in the period W1 between the times t1 and t7, and after the next period W2, the same laminating operation as the period W1 is repeated.

  The length sensor 33 detects the supply length of the film 16 with an adhesive. During the supply of the film 16 with the adhesive, the position detection device 46 detects the positions of the downstream end 75 and the upstream end 76 in the supply direction 21 of the pattern region 3a by the length sensor as described above. The data is stored in the memory 78 in accordance with the output of 33. The processing circuit 31 operates the cutting position for cutting the film with the adhesive based on the positions of the downstream end portion 75 and the upstream end portion 76 in the supply direction 21 of the pattern region 3a, and cuts the film at the cutting position. The cutter 10 is controlled to cut. For example, when cutting while laminating a laminated film, the adhesive-attached film is cut at a predetermined position while moving the cutter 10 with the adhesive-attached film 16 downstream in the supply direction.

  FIG. 24 is a simplified cross-sectional view of the third embodiment of the present invention. This embodiment is similar to the above-described embodiment, and corresponding parts are denoted by the same reference numerals. It should be noted that in this embodiment, a cutter 10b as a cutting means is arranged in the middle of the transport path until the laminated film 2 from the roll-shaped raw film 2b is supplied to the release body 7. The length along the transport path of the laminated film 2 from the cutting position by the cutter 10b to the peeling portion 18 of the peeling body 7 is equal to or longer than the length L3 of the substrate 1 along the transport direction 23. Is also set to be long or short, and thus set to a length suitable for lamination.

  FIG. 25 is a diagram showing a state where the laminated film 2 is cut by the cutter 10b shown in FIG. The cutter 10b cuts only the support film 2a, the layer 3a, and the adhesive 3, and does not cut the separate film 4, but performs a so-called half cut. In the film 2 with an adhesive, before lamination, the support film 2a other than the separate film 4 and the adhesive 3 are cut in advance at a desired position. The desired position is a position where the length of the film to be laminated next is counted from the peeling portion 18 at the front end of the peeling member 7, and the portion from the peeling portion 18 of the peeling member 7 to the half-cut position is next laminated. Film.

  FIG. 26 is a simplified block diagram showing an electrical configuration in the embodiment shown in FIGS. 24 and 25 of the present invention. The electrical configuration shown in FIG. 26 is similar to that of the above-described embodiment, and the corresponding portions are denoted by the same reference characters. In the operation by the cutter 10b, the processing circuit 31 detects the predetermined length detected by the length sensor 33 in response to the output of the downstream end sensor 13, and operates the cutter 10b. Therefore, in this embodiment, the upstream end sensor 12 described above can be omitted. Note that, similarly to the above, the above-described position detection device 46 may be disposed on the upstream side in the film supply direction with respect to the peeling body 7 or may be disposed on the downstream side in the film supply direction. Further, since the cutter 10b is provided at a value at which the cutter 10b is desired to be separated from the peeling body 7, the position detecting device 46 can be disposed regardless of the position of the cutter 10.

  FIG. 27 is a flowchart for explaining the operation of the processing circuit 31 according to the third embodiment of the present invention. The operation of this processing circuit 31 is similar to the operation of FIG. 22 described above, and the corresponding parts are denoted by the same numerals as in steps a1 to a9 in FIG. Show. In FIG. 27, the processing circuit 31 determines the pattern area of the laminated film based on the output from the position detection device 46. When the processing circuit 31 determines that the cutting position set in the laminated film 2 has reached the position facing the cutter 10b, the processing circuit 31 performs cutting by the cutter 10. Thereafter, when the half-cut portion comes to the peeling portion 18 of the peeling body 7, the lamination may be stopped while the lamination is continued, and the lamination may be completed after all the release films 5 are laminated. Alternatively, the lamination may be stopped and cut. If lamination is not performed, it may be cut. At that time, the stop position of the half cut portion is a desired position having a length L1 = 0 to 5 mm from the peeling portion 18 of the peeling body.

  FIG. 28 is a simplified cross-sectional view of a part of a laminating apparatus 100 according to a fourth embodiment of the present invention, and FIG. 29 is a diagram illustrating the entire laminating apparatus 100. This embodiment is similar to the laminating apparatus of the third embodiment, and corresponding parts are denoted by the same reference numerals. The laminating apparatus 100 according to the fourth embodiment separates the separate film 4 from the laminated film 2 made of the same material as the laminating apparatus according to the first embodiment, and attaches the film 16 with the adhesive to the substrate 1 as an adherend. And so-called laminating.

  As shown in FIG. 28, the laminating apparatus 100 is configured to include a raw sheet section 90, a sticking section 91, a cutting section 92, and a substrate transport section 93. In the laminating apparatus 100, a predetermined first direction X is set. The first direction X extends horizontally and is a direction perpendicular to the roll-shaped laminated film raw material 2 b attached to the raw material part 90. In addition, the first direction X1 is the supply direction 21 in which the laminated film 2 is supplied from the raw material section 90 to the attaching section 91. The other direction X2 in the first direction is a transport direction 23 in which the substrate 1 is transported.

  The web part 91 feeds out the laminated film 2 from the roll-shaped laminated film raw material 2b, and guides the laminated film 2 to the sticking part 91 arranged at an interval in the first direction X1. The attaching section 91 removes the separate film 4 from the laminated film 2 fed from the raw sheet section 90 and attaches the film 16 with the adhesive to the substrate 1. Further, the separate film 4 is wound around the core 6.

  The cutting section 92 includes a half-cut unit 80 provided movably in the first direction X, and a unit driving unit 81 that moves and drives the half-cut unit 80 in the first direction X. The half-cut unit 80 is interposed between the web part 90 and the sticking part 91. The half cut unit 80 includes a cutter. The cutter cuts the film 16 with the adhesive in the width direction while leaving the separate film 4 of the laminated film 2.

  The substrate transport section 93 transports the substrate 1 to the attaching section 91 and discharges the substrate 1 on which the film 16 with the adhesive is attached from the attaching section 91. The substrate transport section 93 includes the above-described charging and conveying means 11, laminating rolls 8a and 8b, and discharging and conveying means 14. It is preferable that the positional accuracy of the substrate 1 by the substrate transport unit 93 can be controlled within ± 0.5 mm.

  The support film 2a of the laminated film 2 is formed with a plurality of pattern regions 3a having patterns at intervals in the longitudinal direction. The laminating apparatus 100 according to the third embodiment is configured so that the downstream end or the upper end of the pattern region 3 a in the supply direction is located at a predetermined position on one surface of the substrate 1. 16 is laminated on the substrate 1. In the laminating apparatus 100 of the fourth embodiment, the above-described laminated film 2 of FIG.

  FIG. 30 is a cross-sectional view showing the material web 90. The material roll 90 includes a support roll 101, material roll guiding rolls 19a to 19c, a pair of feeding pinch rolls 102a and 102b, a pair of fixed position rolls 103a and 103b, a dancer roll 104, and a guide body 105. And a tension adjusting weight 106 and a material discharge roll 107. The laminated film 2 is wound around a part of the outer peripheral surface of each of the rolls 19 a to 19 c, 102 a, 102 b, 103 a, 103 b, 104, 107 and guided, and is fed out from the raw material section 90 in the first direction X1. . The axes of the rolls extend in parallel with each other, and extend perpendicularly to a virtual plane including a vertical virtual line and a virtual line extending in the first direction X. Each roll is supported rotatably about its axis.

  The support roll 101 supports the roll-shaped laminated film blank 2b so that it can be mounted. Each of the guide rolls 19a to 19c has an outer peripheral surface abutting on the laminated film 2 extending from the roll-shaped laminated film raw material 2b, stretches the laminated film 2, and places the laminated film 2 on a pair of feeding pinch rolls 102a, 102b. invite. The pair of feeding pinch rolls 102a and 102b hold the laminated film 2 guided by the raw material guide roll 19c so as to be able to be fed.

  The pair of fixed position rolls 103a and 103b are arranged side by side in the first direction X. The dancer roll 104 is provided between the two fixed-position rolls 103a and 103b in the first direction X, and is supported by the guide body 105. The guide body 105 supports the dancer roll 104 movably in the vertical direction Z. Further, the dancer roll 104 is provided with a tension adjusting weight 106 and receives gravity according to the tension adjusting weight 106.

  The laminated film 2 contacts the upper surfaces of the fixed position rolls 103a and 103b and the lower surface of the dancer roll 104. The lower surface of the raw material discharge roller 107 abuts on the laminated film 2 extending from the fixed position roll 103b downstream of the two in the supply direction of the laminated film 2, and guides the laminated film 2 in one direction X in the first direction. That is, the laminated film 2 is wound around the fixed position roll 103a and the dancer roll 104 on the upstream side in the supply direction, the fixed position roll 103b on the downstream side in the supply direction, and the raw material discharge roll 107 in a zigzag manner. The portion 90 extends in the first direction X1.

  In other words, as the laminated film 2 fed from the feeding pinch rolls 102a and 102b advances toward the downstream side in the supply direction, the upper surface of the fixed position roll 103a on the downstream side in the supply direction, the lower surface of the dancer roll 104, and the upstream side in the supply direction. It is wound around the upper surface of the fixed position roll 103b and the lower surface of the material roll discharge roll 107, respectively. The separate film 4 is sandwiched between the pair of winding pinch rolls 9 a and 9 b of the sticking portion 91 among the laminated films 2 extending in the first direction X <b> 1 from the material web 90. When the dancer roll 104 is subjected to a downward force by the tension adjusting weight 106 in a state where the laminated film 2 is sandwiched by the winding pinch rolls 9a and 9b, the tension according to the tension adjusting weight 106 is separated. 4 is given. That is, the raw fabric part 90 and the sticking part 91 serve as a tension applying means for applying tension to the separate film 4.

  FIG. 31 is a cross-sectional view showing the attaching section 91 and the cutting section 92. The sticking section 91 includes a sticking section introduction roll 113, a sticking section guide roll 110, a peeling body 7, a pair of winding pinch rolls 9a and 9b, a core 6, an air ejection nozzle 111, and a separate film guide. And a roll 112. The sticking section introduction roll 113 guides the laminated film 2 guided from the raw sheet section 90 through the cutting section 92 to the sticking section guide roll 110. The sticking portion guide roll 110 guides the laminated film 2 guided from the sticking portion introduction roll 113 to the peeling body 7. The sticking portion guide roll 110 is arranged in one direction X1 with respect to the peeling body 7 in the first direction, and the laminating rolls 8a and 8b are arranged in the other direction X2 with respect to the peeling body 7 in the first direction. Further, the separate film guide roll 112 is arranged in the first direction X1 with respect to the release body 7. The axes of the rolls of the attaching section 91 extend in parallel with each other, and extend perpendicularly to a virtual plane including a vertical virtual line and a virtual line extending in the first direction X. Each roll is supported rotatably about its axis.

  The laminated film 2 guided by the sticking portion guide roll 110 passes through the first guide surface 28 of the peeling body 7 as in the first embodiment. The peeling member 7 separates the separate film 4 and the film 16 with the adhesive at the peeling portion 18. As a result, the adhesive-backed film 16 extends along the first guide surface 28, separates from the peeling portion 18 of the peeling body 7, and extends toward the pair of laminate rolls 8a, 8b.

  The separate film 4 is folded from the first guide surface 28 at the peeling portion 18, extends along the second guide surface 29, separates from the peeling body 7, and extends toward the separate film guide roll 112. The separate film guide roll 112 guides the separated film 4 that has been peeled off, and guides the separated film 4 to the pair of winding pinch rolls 9a and 9b. The pinch rolls 6a and 6b hold the separate film 4 and wind the held separate film 4 around the core 6. The laminated film 2 is supplied from the raw material part 90 by the winding pinch rolls 9 a and 9 b causing the core film 6 to wind the separate film 4. The core film 6 and the take-up pinch rolls 9 a and 9 b take up the separate film 4, so that the laminated film 2 is unwound from the material web 90. Therefore, the core 6 and the take-up pinch rolls 9a and 9b serve as a laminated film supply means for supplying the laminated film 2 to the laminate rolls 8a and 8b.

  In the present embodiment, by arranging the rolls as described above, the laminated film 2 extends in a substantially C-shape before reaching the peeling portion 18 of the peeling body 7. Specifically, the laminated film 2 is folded back into a C-shape by the attaching part introduction roll 113 and the attaching part guide roll 110 from the first state in which the separate film 4 extends upward in the first direction X, and is separated. The film 4 is guided to the second state extending downward and downward. From the second state, the separation film 4 guides the separate film 4 in contact with the first guide surface 28 and the second guide surface 19. Then, in a state where the separate film 4 is peeled off from the peeling portion 18 of the peeling body 7, the pressure-sensitive adhesive film 16 is in a state where the pressure-sensitive adhesive 3 is directed downward.

  The air ejection nozzle 111 serves as a gas ejection unit that ejects a gas for maintaining the posture of the film with an adhesive, for example, clean air to the film 16 with an adhesive, on the downstream side of the peeling body 7 in the transport direction. The air ejection nozzle 111 is supplied with air from an air supply source 130, and ejects the supplied air to the film 16 with an adhesive. Specifically, the film 16 with the adhesive separated from the peeling portion 18 of the peeling body 7 and directed to the laminating rolls 8a and 8b is moved downward from the peeling body 7 in the first direction X1 from the first direction X1 to the other direction X2. Blow clean air from the side.

  FIG. 32 is a diagram for explaining the cutting unit 92. The cutting section 92 includes a half-cut unit 80 provided to be movable in the first direction X between the web section 90 and the attaching section 91, and a unit driving unit 81 for driving the half-cut unit 80 to move in the first direction X. And FIG. 32A shows a state in which the half cut unit 80 is arranged on the upstream side in the supply direction. FIG. 23 (2) shows a state in which the half cut unit 80 is arranged on the downstream side in the supply direction.

  The half-cut unit 80 is provided with two cutting portion guide rolls 120a and 120b, a cutter 121 for half-cutting the film 16 with an adhesive, and a pattern detection sensor 122 for detecting a pattern 3a formed on the laminated film 2. Can be The axes of the rolls extend in parallel with each other, and extend perpendicularly to a virtual plane including a vertical virtual line and a virtual line extending in the first direction X. Each roll is supported rotatably about its axis.

  The first cutting portion guide roll 120a on the upstream side in the supply direction of the two cutting portion guide rolls 120 keeps the laminated film 2 extending from the raw material portion discharge roll 107 extended in the first direction X, The laminated film 2 comes into contact with the laminated film 2 and is bent in the second direction. In the present embodiment, the laminated film 2 is folded 90 degrees by the first cutting portion guide roll 120a and extends vertically. In addition, the second cutting portion guide roll 120b on the downstream side in the supply direction of the two cutting portion guide rolls 120 holds the laminated film 2 extending from the first cutting portion guide roll 120a in a state of extending in the second direction. Then, the laminated film 2 comes into contact with the laminated film 2 and is bent. In the present embodiment, the laminated film 2 is folded 90 degrees by the second cut portion guiding roll 120b and extends vertically. Thereby, the laminated film 2 extends in the first direction X again from the second cutting portion guide roll 120b, and is guided by the sticking portion introduction roll 113.

  In the present embodiment, the unit driving means 81 includes a screw shaft extending in the first direction X, a nut member screwed to the screw shaft and fixed to the half-cut unit 80, and a screw shaft rotating motor for rotating the screw shaft. And a guide rail for guiding the nut member so as to be movable in the first direction X and preventing rotation of the nut member. Note that a ball screw is realized by the screw shaft and the nut member.

  By rotating the screw shaft rotation motor, the screw shaft is rotated. The nut member is prevented from rotating by the guide rail. Therefore, the nut member is given a force to move in the first direction X from the screw shaft. Thereby, the half cut unit 80 fixed to the nut member is driven to be displaced in the first direction X together with the nut member. By changing the rotation direction of the screw shaft, the direction in which the half-cut unit 80 moves in the first direction X can be switched. The mechanism for driving the half-cut unit 80 is not limited to this, and the half-cut unit 80 may be moved by another driving mechanism. In the present embodiment, a unit position detecting means for detecting the position of the half cut unit 80 in the moving direction is provided. For example, the unit position detecting means is realized by an encoder that detects a rotation amount of a rotation shaft of a screw shaft rotation motor.

  As described above, the half-cut unit 80 is provided with the cutter 121 and the pattern detection sensor 122. The cutter 121 and the pattern detection sensor 122 are provided between the two cutting portion guide rolls 120a and 120b, and are arranged to face the laminated film 2 extending in the vertical direction. Further, the pattern detection sensor 122 and the cutter 121 are arranged apart from each other by a predetermined distance L20.

  When the rotation of the feeding pinch rolls 102a and 102b and the winding pinch rolls 9a and 9b is stopped, and the conveyance of the laminated film 2 is stopped, the half-cut unit 80 is moved in the moving direction X, and the cutter 121 and the pattern The position of the laminated film 2 facing the detection sensor 122 changes. Specifically, when the half-cut unit 80 is moved in one direction X1 in the movement direction, the cutter 121 and the pattern detection sensor 122 face the laminated film 2 on one side in the movement direction.

  The cutter 121 has a disk-shaped cutter body and cutter driving means for moving the cutter body in the width direction of the laminated film 2 while rotating the cutter body. The cutter driving unit moves the cutter body in the width direction of the laminated film 2 while rotating the cutter body, thereby cutting the laminated film 2 other than the separate film 4, that is, the film 16 with the adhesive in the width direction. Can be.

  The pattern detection sensor 122 includes a laser emitting unit, a reflecting mirror, a laser receiving unit, and a level changing unit. The laser emitting means is disposed on one surface side of the laminated film 2 and irradiates the laser light obliquely toward the one surface in a virtual plane perpendicular to the supply direction. The reflecting mirror is arranged on the other surface side of the laminated film 2, reflects the laser beam from the other surface that has passed through the laminated film 2, and reflects the laser light in the virtual plane toward the other surface. The laser receiving means is disposed on the one surface side of the laminated film 2, receives the laser light passing through the laminated film 2 from the reflecting mirror, and derives an electric signal having a signal level corresponding to the intensity of the received laser light. I do. The level changing means can detect a pattern area formed on the laminated film 2 based on a change in the intensity of the received light by detecting a change in the signal level of the laser light receiving means.

  As shown in FIG. 32 (1) and FIG. 32 (2), when a plurality of patterns 3a are formed at intervals in the longitudinal direction, the unit is operated in a state where the pattern detection sensor 122 is switched to a pattern detectable state. When the driving unit 81 moves the half cut unit 80 in the first direction X, the pattern detection sensor 122 can detect the edge of one pattern 3a. At this time, an encoder value of an encoder provided in the screw shaft rotating motor, relative position information between the pattern detection sensor 122 and the cutter, and cutting position information regarding a position where the laminated film 3 should be half-cut with respect to the edge of the pattern 3a. , The unit driving means 81 drives the half cut unit 80. Thus, as shown in FIG. 33 (2), the cutter 121 can be arranged so as to face a cutting position to be cut on the laminated film 2. In this state, when the cutter driving unit drives the cutter body, the laminated film 2 can be half-cut at the cutting position where the laminated film 2 is to be cut.

  FIG. 33 is a plan view showing the substrate transport section 93. The substrate transport section 93 is realized by a roller conveyor, and moves the substrate 1 horizontally from the other first direction X2 to the first direction X1, that is, in the substrate transport direction. The substrate transport section 93 has an input section for transporting the substrate 1 to the attaching section 91 and a discharge section for discharging the laminated substrate 1 from the laminating apparatus 100. As the substrate 1 passes between the pair of laminate rolls 8a and 8b, the film 16 with the adhesive is adhered to the surface. Further, the substrate transport section 93 discharges the substrate 1 to which the film 16 with the adhesive is adhered.

  The substrate transport section 93 is configured to be able to change the transport speed of the substrate 1. Further, in the embodiment of the present invention, there is provided an interlocking means and an interlocking state switching means. The interlocking means transmits the rotational power for rotating the roller conveyor and the laminating rolls 8a, 8b in the input portion to the winding pinch rolls 9a, 9b and the winding core 6. For example, the interlocking means is realized by a clutch, and more specifically, a double clutch brake is used. Further, in the present embodiment, the interlocking state switching means is a clutch state switching means. The clutch state switching means has clutch state switching means for switching the power transmission state by the interlocking means. The interlocking state switching means switches between a transmission state in which the power for rotating the laminate roll by the clutch to the pinch rolls 9a and 9b and a non-transmission state in which the power for the clutch to rotate the laminate roll is not transmitted to the pinch rolls 9a and 9b. By providing the clutch in this manner, there is no need to separately provide a driving unit for driving the laminating roll and the core 6.

  The clutch transmits power so that the transport speed of the substrate 1 matches the supply speed of the laminated film 2. Thus, the film 16 with the adhesive can be adhered to the substrate 1 while preventing the film 16 with the adhesive from stretching and loosening without performing complicated control. Further, the laminating apparatus 100 has an upper laminating roll displacement driving means for vertically driving the upper laminating roll of the two laminating rolls similarly to the first embodiment described above.

  In the present embodiment, there are first to fourth substrate detection sensors 12 for detecting the transport state of the substrate 1. Each sensor 12 is provided side by side in the transport direction of the substrate 1, and a state where the sensor 12 and the substrate 1 face each other (a so-called on state) and a state where the sensor 12 and the substrate 1 do not face each other (a so-called off state). Are output as detection results. For example, the substrate detection sensor 12 may be realized by a non-contact sensor such as an optical sensor. When the substrate 1 advances in the other direction X2 in the first direction and the substrate detection sensor 12 is switched from the off state to the on state, the leading end 16a of the substrate 1 can be detected. When the board detection sensor 12 is switched from the on state to the off state, the rear end portion 16b of the board 1 can be detected.

  The first and second substrate detection sensors 12 are disposed upstream of the laminating rolls 8a and 8b in the transport direction. The first substrate detection sensor is disposed upstream of the second substrate detection sensor in the transport direction. Further, the third and fourth substrate detection sensors 12 are arranged downstream of the laminating rolls 8a and 8b in the transport direction. The third substrate detection sensor is disposed upstream of the fourth substrate detection sensor in the transport direction. Specifically, the third and fourth substrate detection sensors are provided at a distance from the laminating rolls 8a, 8b that is longer than the length of the substrate 1 in the longitudinal direction. Therefore, when the third substrate detection sensor 12 detects the front end 1a of the substrate 1, the rear end 1b of the substrate 1 moves downstream of the laminating rolls 8a, 8b in the transport direction. Further, the pattern detection sensor 122 corresponds to the above-described position detection device 46 and performs the same operation.

  FIG. 34 is a block diagram illustrating an electrical configuration of the laminating apparatus 100 according to the third embodiment. The laminating apparatus 100 has the same configuration as the laminating apparatus of the second embodiment shown in FIG. The processing circuit 31 gives a movement command to a half-cut unit driving unit 81 that drives the half-cut unit 80 for displacement. The half cut unit driving means 81 moves the half cut unit 80 in the first direction X based on a movement command given from the processing circuit 31. Each substrate detection sensor 12 gives a detection result to the processing circuit 31. The processing circuit 31 can determine the position of the substrate 1 based on a signal indicating the ON / OFF state given from each substrate detection sensor 12.

  Further, the processing circuit 31 receives information indicating a change in the amount of light received by the laser light receiving means from the level changing means of the pattern detection sensor 122. Thus, the processing circuit 31 can determine the position of the end of the pattern area 3a. Further, the processing circuit 31 stores in advance the distance between the pattern detection sensor 122 and the cutter 121. Further, the processing circuit 31 is provided with position information indicating the position of the half cut unit 80 from the half cut unit position detecting means 82 for detecting the position of the half cut unit 80 in the first direction X. As described above, the half-cut unit position detecting means 82 is realized by the encoder provided in the screw shaft rotation motor.

  Further, the processing circuit 31 controls an air supply source 130 that supplies air to the air ejection nozzle 111. The processing circuit 31 supplies the air supply source 130 with a supply command, so that the air supply source 130 supplies air to the air ejection nozzle 111. Further, the processing circuit 31 gives a substrate transport instruction to the substrate transport section 93. When a substrate transport command is given, the substrate transport unit 93 drives the roller conveyor to transport the substrate 1 loaded on the roller conveyor in the transport direction. The substrate transport section 93 is configured to be able to change the transport speed of the substrate 1 according to a command from the processing circuit 31. Further, in the embodiment of the present invention, the processing circuit 31 gives the clutch state switching means 131 a clutch switching command, thereby interlocking the substrate transport unit 93 with the pinch rolls 9a and 9b, Can be switched to a non-interlocked state in which the interlock between the pinch rolls 9a and 9b is prevented. Also, the upper laminate roll can be raised and lowered by displacing the upper laminate roll displacement means 132 with an example.

  Such a processing circuit 31 stores a predetermined program, and can execute a laminating operation of the film 16 with an adhesive by executing the program. The program may be input to the processing circuit 31 by the input unit 32, or may be input to the processing circuit 31 by a storage medium readable by the processing circuit 31 in which the program is stored. For example, the processing circuit 31 is realized by a programmable controller.

  FIG. 35 is a flowchart for explaining a first operation of the processing circuit 31 in the fourth embodiment, and FIG. 36 is a timing chart showing the operation of each means in the first operation. In the first operation, the cutter 121 cuts the adhesive-backed film 2 at predetermined intervals.

  First, in step c0, when the substrate 1 is supplied to the laminating apparatus 100, the process proceeds to step c1. For example, when an operator supplies a substrate to the laminating apparatus 100 and determines that the substrate 1 has been supplied by the input unit 32, the processing circuit 31 proceeds to step c1 and starts a laminating operation. In step c1, a transfer command is given to the substrate transfer section 93, and the substrate 1 is transferred at a predetermined first speed V1. For example, the first speed V1 is 20 m / min.

  The processing circuit 31 proceeds to step c2 after counting a predetermined time P10, for example, 1 second after starting the transfer of the substrate 1. In step c2, when it is determined that the first substrate detection sensor 12 has detected the front end 1a of the substrate 1 based on the information provided from the first substrate detection sensor 12, the process proceeds to step c3. In step c3, when a predetermined time W11 has elapsed since the end of step c2, the processing circuit 31 transports the substrate 1 at the second speed V2 set to a speed lower than the first speed V1, and proceeds to step c4. move on. For example, the second speed V2 is 1 m / min. When the predetermined time W11 has elapsed, the front end 1a of the substrate 1 is placed near the laminating rolls 8a and 8b.

  In step c4, when it is determined that the second substrate detection sensor 12 has detected the front end 1a of the substrate 1 based on information provided from the second substrate detection sensor 12, the process proceeds to step c5. In step c5, when a predetermined time W12 has elapsed from step c4, the transfer of the substrate 1 is stopped, and the process proceeds to step c6. In a state where the predetermined time W12 has elapsed, the substrate 1 has reached a position where the substrate transport section 93 and the attaching section 91 should be linked.

  In step c6, the processing circuit 31 gives a command to the clutch state switching means 131 to switch the board conveying section 93 and the attaching section 91 to the interlocking state, and proceeds to step c7. Note that the processing circuit 31 performs the operations of step c20 and step c24 together with the operation of step c7. The operations of step c20 and step c24 will be described later.

  In step c7, when the processing circuit 31 counts a predetermined time P11, for example, 1 second, gives a transfer command to the substrate transfer section 93, and transfers the substrate 1 at a predetermined second speed V2. At this time, since the clutch state has been switched to the interlocking state, the separate film 4 is wound around the core 6 and the film 16 with the adhesive is conveyed from the release body 7 to the laminate rolls 8a and 8b. The speed at which the laminating rolls 8a and 8b move is set to match the moving speed at which the substrate 1 moves. When the predetermined time W13 elapses in Step c7, the process proceeds to Step c8.

  In step c8, the processing circuit 31 gives a displacement command to the upper laminate displacement driving means 132. Thereby, the upper laminating roll 8a descends toward the lower laminating roll 8b, and proceeds to Step c9. In step c9, the processing circuit 31 keeps the peripheral speed of the laminating rolls 8a, 8b at the second speed V2, and attaches the front end 16a of the film 16 with the adhesive to the substrate 1. When a predetermined time W14 has elapsed from step c9, the process proceeds to step c10. When the predetermined time W14 has elapsed, the front end 16a of the adhesive-backed film 16 is stuck to the substrate 1 without displacement. In Step c10, the peripheral speed of the laminating roll is returned to the first speed V1, and the process proceeds to Step c11.

  In step c11, when the first substrate detection sensor 12 detects the rear end 1b of the substrate 1, the process proceeds to step c12. In Step c12, when a predetermined time W15 has elapsed from Step c11, the substrate transfer speed is set to the predetermined third speed V3, and the process proceeds to Step c13. The third speed V3 is lower than the first speed and higher than the second speed. In the present embodiment, it is set to 5 m / min. When the predetermined time W15 has elapsed, the rear end portion 16b of the film 16 with the adhesive is guided by the peeling body 7. The operation of step c22 is performed together with the operation of step c13. The operation of step c22 will be described later.

  In step c13, when a predetermined time W16 has elapsed after the second substrate detection sensor 12 detects the rear end 1b of the substrate 1, the process proceeds to step c14. When the predetermined time W16 has elapsed, the rear end 1b of the film 16 with the adhesive is adhered to the substrate 1.

  In step c14, the processing circuit 31 gives a displacement command to the upper laminate displacement driving means 132. As a result, the upper laminating roll 8a rises from the lower laminating roll 8b, and the process proceeds to Step c15. In step c15, the processing circuit 31 proceeds to step c15 when a predetermined time W17 elapses after giving the displacement command. In a state where the predetermined time W17 has elapsed, the substrate 1 has moved downstream with respect to the laminating rolls 8a and 8b in the transport direction.

  In step c15, a transfer command is given to the substrate transfer section 93, and the substrate 1 is transferred at a predetermined fourth speed V1, and the process proceeds to step c16. For example, the fourth speed V4 is 30 m / min. In step c16, when the third substrate detection sensor 12 detects the front end 1a of the substrate 1, the process proceeds to step c17. In step c17, when a predetermined time W18 elapses from step c16, a transfer command is given to the substrate transfer section 93, the substrate 1 is transferred at the second predetermined speed V2, and the process proceeds to step c18. In step c18, when the fourth substrate detection sensor 12 detects the front end 1a of the substrate 1, the process proceeds to step c19. In step c19, when a predetermined time W19 has elapsed since the end of step c18, the processing circuit 31 determines that the substrate 1 has been discharged, ends the transport operation of the substrate 1, and ends the laminating operation. .

  When a predetermined time W21 has elapsed since the end of step c6, the process proceeds to step c20. In step c20, the processing circuit 31 controls the air supply source 130 to blow air onto the tip 16a of the adhesive-backed film 16 separated from the release body 7, and after a predetermined time W22 has elapsed, the process proceeds to step c21. In step c21, the processing circuit 31 controls the air supply source 130 to terminate the ejection of air.

  When a predetermined time W23 has elapsed since the end of step c12, the process proceeds to step c22. In step c22, the processing circuit 31 controls the air supply source 130 to blow air onto the rear end portion 16b of the adhesive-backed film 16 separated from the peeling body 7, and after a predetermined time W24 elapses, proceeds to step c21. In step c23, the processing circuit 31 controls the air supply source 130 to terminate the ejection of air.

  In step c6 described above, when a predetermined time P11, for example, one second has elapsed, the process proceeds to step c24. In step c24, the feeding operation for supplying the laminated film 2 is started. Specifically, the processing circuit 31 controls the feeding pinch rolls 102a and 102b and the winding pinch rolls 9a and 9b to start film feeding. It should be noted that the subsequent supply speed of the laminated film coincides with the transfer speed of the substrate 1 by the clutch. When the time W20 corresponding to the predetermined film length has elapsed in step c24, the process proceeds to step c25.

  In step c25, the processing circuit 31 gives a command to the clutch state switching means 132 to switch the board conveying section 93 and the attaching section 91 to the non-interlocking state, and proceeds to step c26. In step c26, the feeding of the laminated film 2 is stopped. Specifically, the processing circuit 31 controls the feeding pinch rolls 102a and 102b and the winding pinch rolls 9a and 9b to stop the film feeding. When a predetermined time W25 elapses after the feeding is stopped, the process proceeds to step c27. When the predetermined time W25 has elapsed, the supply of the laminated film 2 is stopped.

  In step c27, the processing circuit 31 controls the cutter driving unit, and cuts the adhesive-attached film 16 in half at a predetermined length. By operating each unit of the laminating apparatus 100 by the processing circuit 31 in this manner, the adhesive-attached film 16 cut to a predetermined size can be adhered to a predetermined position of the substrate 1.

  FIG. 37 is a flowchart for explaining the second operation of the processing circuit 31 in the fourth embodiment. FIG. 38 is a timing chart showing the operation of each means in the second operation. In the second operation, the cutting position of the cutter 121 is changed based on the detection result of the pattern area by the pattern detection sensor 122. The second operation shown in FIG. 37 is almost the same as the first operation shown in FIG. 35, and the description of the same configuration will be omitted.

  Specifically, in the second operation, the processing circuit 31 performs the operations of Step d1 to Step d26, which are the same operations as Step c1 to Step c26 in the first operation. The processing circuit 31 proceeds to step d27 when a predetermined time W26 elapses after stopping the feeding of the laminated film 2 in step d26.

  In step d27, the processing circuit 31 gives a command to the pattern detection sensor 122 to make the pattern area detection state, and then gives a movement command to the half cut unit driving means 81. Thereby, the half-cut unit 80 detects the pattern area 3a while moving in the first direction X. When the processing circuit 31 gives such an instruction, the process proceeds to step d28. In step d28, based on the information provided from the pattern detection sensor 122 and the half-cut unit position detecting means 82, the position of the half-cut unit 80 when the front end or the rear end of the pattern area 3a is detected is detected. Proceed to d29.

  In step d29, based on the detection result detected in step d28, the half-cut unit driving means 81 is set so that the cutter 121 faces a predetermined portion between the one pattern area 3a and the other pattern area 3b. Control proceeds to step d30. In step d30, the processing circuit 31 gives an instruction to the cutter driving unit to half-cut the adhesive-attached film 16 of the laminated film 2 at a predetermined portion. By operating each unit of the laminating apparatus 100 by the processing circuit 31 in this manner, the film with the adhesive cut to a predetermined size can be adhered to a predetermined position of the substrate 1. In addition, even when the pattern area 3a varies, the pattern area 3a is detected, and the film 16 with the adhesive is cut based on the detection result, thereby preventing the error of the pattern area 3a from accumulating. Can be.

  FIG. 39 is a diagram illustrating the tension applied to the separate film 4. FIG. 39 (1) shows a case where the adhesive film 16 gives a tension F1 which is larger than the force F2 of the film 16 with the adhesive pulling the separate film 4 toward the separation body 7 downstream in the supply direction. . FIG. 39 (2) shows a case in which the adhesive film 3 gives a tension F1 that is smaller than the force F2 that the adhesive film 16 pulls the separate film 4 to the release body 7 downstream in the supply direction. .

  In the present embodiment, as shown in FIG. 39 (1), the tension F1 applied to the separate film 4 is such that the film 16 with the adhesive separates the separate film 4 from the release body 7 by the adhesive force of the adhesive 3. The tension is set to be greater than the force F2 pulling downstream in the supply direction. In other words, it is preferable that the tension F1 applied to the separate film 4 is equal to or higher than the force required for peeling the separate film 4 in the corresponding state, that is, the peel strength. The peel strength is determined by the properties of the adhesive 3, the properties of the separate film 4, and the surface shape of the separate film 4.

  As described above, the tension F1 applied to the separate film 4 is larger than the force F2 that causes the film 16 with the adhesive to pull the separate film 4 toward the downstream side in the supply direction with respect to the release body 7 due to the adhesive force of the adhesive 3. 39, the separation film 4 is prevented from moving downstream from the peeling body 7 in the supply direction with the separate film 4 attached to the film 16 with the adhesive as shown in FIG. 39 (2).

  That is, in the present embodiment, the state shown in FIG. 39A, that is, the separate film 4 and the film 16 with the adhesive can be reliably peeled off at the peeling portion 18 of the peeling body 7, and FIG. The state shown, that is, the position where the separate film 4 is peeled can be prevented from being shifted. Thus, when the separate film 4 is peeled, a position 99 where the pressure-sensitive adhesive 3 is deformed can be generated in the vicinity of the peeling portion 18, and the deformation of the pressure-sensitive adhesive 3 can be controlled stably. The problem that a streak defect occurs in a predetermined region 24 of the substrate 1, for example, the effective visual field range of the optical film can be surely solved. Also, by applying a tension less than the breaking limit to the separate film 4, the separate film 4 can be prevented from breaking.

  Specifically, in order to set the tension F1 of the separate film 4, the tension applied to the separate film 4 can be set by adjusting the weight of the tension adjusting weight 106 applied to the dancer roll 104 described above. The tension F1 applied to the separate film 4 is set to a tension less than the breaking limit of the separate film 4. In the present embodiment, when an acrylic adhesive is used as the adhesive and the thickness of the layer of the adhesive 3 is 25 μm, the tension applied to the separate film 4 per unit width is 2.6 N / cm (260 gf / Cm) or more and 4.5 N / cm (450 gf / cm) or less. More specifically, when the width of the separate film 4 is 500 to 820 mm, the total weight of the dancer roll 104 and the tension adjusting weight 106 is set to 22 kg. This makes it possible to stably control the deformation of the pressure-sensitive adhesive 3 as described above, and to surely prevent the problem that a streak defect occurs in a predetermined region 24 of the substrate 1 after the adhesion, for example, in the effective visual field range of the optical film. Can be solved.

  In this embodiment, as shown in FIGS. 36 and 38, when the front end 16a of the film 16 with an adhesive is attached to the substrate 1, the intermediate portion in the longitudinal direction of the film 16 with the adhesive is attached. As compared with the case, the transport speed of the substrate 1 and the supply speed of the laminated film 2 are reduced. For example, as described above, when sticking the intermediate portion in the longitudinal direction of the film 16 with the adhesive, the substrate 1 is conveyed at 20 m / min and the laminated film 2 is fed out. When the rear end of the film 16 with the adhesive in the longitudinal direction is to be adhered, the substrate 1 is conveyed at 1 m / min and the laminated film 2 is fed out.

  When the front end portion 16a of the film 16 with an adhesive is adhered to the substrate 1, the transport speed of the substrate 1 and the feeding speed of the film 16 with the adhesive are reduced, so that the film 16 with the adhesive adhered to the substrate 1 is reduced. Can be improved in sticking accuracy. As a result, the stripes 25 can be formed outside the predetermined region 24. Therefore, the transport speed of the substrate 1 and the feeding speed of the film 16 with the adhesive are determined by the long dimension L15 of the stripe 25 to be formed, the distance L4 of the front end 16a of the film 16 with the adhesive to the front end 1a of the substrate 1, and Considering the dimensional tolerance and the distance L12 from the front end 16a of the adhesive-backed film 16 in the transport direction to the predetermined region 24, it is possible to realize positioning accuracy such that no stripes are formed in the predetermined region 24 on the substrate 1. Speed is determined.

  In this embodiment, by using the exfoliated body 7 shown in the second embodiment, the position of the streak 25 formed with respect to the exfoliated body 7 can be stably controlled. The streak 25 can be reliably formed outside the region 24 defined on the substrate 1 by lowering and improving the sticking accuracy.

  If the conveying speed of the substrate 1 and the feeding speed of the laminated film 2 are too low, the leading end 16a of the film 16 with an adhesive contacts the substrate 1 before reaching the laminating rolls 8a and 8b due to its own weight. May be lost. In this case, air bubbles are generated between the film 16 with the adhesive and the substrate 1, which causes poor quality. Therefore, in the present embodiment, when the tip 16a of the film 16 with an adhesive is adhered, the transport speed of the substrate 1 and the supply speed of the laminated film 2 are set such that the tip 16a of the film 16 with the adhesive is attached to the substrate 1. Prior to contact, the speed is set to reach the laminating rolls 8a and 8b.

  FIG. 40 is a diagram for explaining the attachment of the distal end portion 16a of the film 16 with an adhesive. The attachment of the tip 16a of the film 16 with an adhesive proceeds in the order of FIGS. 40 (1) to 40 (4). In the present embodiment, when the tip portion 16a of the film with an adhesive 16 is adhered to the substrate 1, air for maintaining the attitude of the film with an adhesive 16 is blown out to the film with an adhesive 16. Thereby, the curl generated at the front end portion 16a of the film 16 with an adhesive can be corrected, and the front end portion 16a can accurately reach a predetermined position of the laminating rolls 8a and 8b. Thereby, the sticking accuracy can be further improved. Further, by blowing air, the tip portion 16a of the film 16 with the adhesive can be suppressed or prevented from falling onto the substrate 1 by blowing air, as compared with the case where the tip portion 16a of the film 16 with the adhesive drops by its own weight. The transport speed can be improved effectively. Further, the interval between the upper laminating roll 8a and the lower laminating roll 8b is widened, the tip 16a of the film 16 with the adhesive is inserted between the pair of laminating rolls 8a, 8b, and the upper laminating roll 8b is lowered. By doing so, the film 16 with an adhesive can be accurately adhered to the substrate 1.

  In this way, it is possible to reduce defects that occur when the front end 16a of the film 16 with an adhesive is adhered to the substrate 1, and to reduce the front end 16a of the film 16 with an adhesive in the subsequent stage of the film 16 with the adhesive. The amount of protrusion from the peeling body 7 can be easily controlled.

  FIG. 41 is a diagram for explaining the attachment of the rear end portion 16b of the film 16 with an adhesive. The attachment of the rear end portion 16b of the film with adhesive 16 proceeds in the order of FIG. 41 (1) to FIG. 41 (4). In the present embodiment, when the rear end portion 16b of the film with an adhesive 16 is attached to the substrate 1, the transport speed of the substrate 1 is higher than when attaching the intermediate portion in the longitudinal direction of the film 16 with the adhesive. And the supply speed of the laminated film 2 is reduced. For example, as described above, when sticking the intermediate portion in the longitudinal direction of the film 16 with the adhesive, the substrate 1 is conveyed at 20 m / min and the laminated film 2 is fed out. When the long end 16b in the longitudinal direction of the film 16 with the adhesive is attached, the substrate 1 is conveyed at 5 m / min and the laminated film 2 is fed out.

  When the rear end portion 16b is adhered to the substrate 1, by lowering the transport speed of the substrate 1 and the feeding speed of the film 16 with the adhesive, the feeding accuracy of the laminated film 2 can be improved. By improving the positioning accuracy, the position of the front end 16a of the film with adhesive 16 guided by the peeling member 7 can be accurately positioned with respect to the peeling member 7. For example, by lowering the transport speed, it is possible to easily adjust the amount of protrusion L1 by which the front end 16a of the film with adhesive 16 projects from the peeling portion 18 of the peeling body 7.

  If the transport speed of the substrate 1 and the supply speed of the laminated film 2 are too low, the rear end portion 16a of the film 16 with the adhesive is attached to the substrate 1 before reaching the laminate rolls 8a and 8b by its own weight. May touch. In this case, air bubbles are generated between the film 16 with the adhesive and the substrate 1, which causes poor quality. Therefore, in the present embodiment, when the rear end portion 16b of the film with an adhesive 16 is adhered, the transport speed of the substrate 1 is set such that the rear end portion 16b of the film with an adhesive comes in contact with the substrate 1 before The speed is set to reach the laminating rolls 8a and 8b. In addition, even if the speed at the time of sticking the rear end portion 16b is higher than the speed at the time of sticking the front end portion 16a, the sticking accuracy at the rear end portion 16b does not significantly decrease. Therefore, it is preferable that the speed at the time of sticking the rear end 16b be higher than the speed at the time of sticking the front end 16a.

  Further, in the present embodiment, when the rear end portion 16b of the film with an adhesive 16 is adhered to the substrate 1, air for maintaining the attitude of the film with an adhesive 16 is blown onto the film with an adhesive 16. Thereby, the curl generated in the rear end portion 16b of the film 16 with the adhesive can be corrected, and the rear end portion 16b can accurately reach the predetermined position of the laminating rolls 8a, 8b. Further, by blowing air, the rear end portion 16b can be suppressed or prevented from falling onto the substrate 1 as compared with the case where the rear end portion 16b drops onto the substrate 1 by its own weight. Can be improved. By limiting the period during which the air is blown to the gas to the attachment of the front end and the rear end of the film with the adhesive, it is possible to eliminate the ejection of the air during the period where the effect is small.

  In this way, it is possible to reduce defects that occur when the rear end portion 16b of the film with an adhesive 16 is attached to the substrate 1 and to reduce the front end portion 16a of the film 16 with an adhesive at a subsequent stage of the film 16 with the adhesive. It is possible to easily control the amount of protrusion from the release body 7.

  In the present embodiment, the transfer speed of the substrate 1 and the laminating film from the start of attaching the front end of the film 16 with the adhesive to the substrate 1 to the end of attaching the rear end 16b of the film 16 with the adhesive are completed. Change the feeding speed of No. 2. If the speed ratio when changing the speed exceeds a predetermined range, a streak is formed when the speed changes. Therefore, the speed ratio is set to be equal to or less than a predetermined value. In this embodiment, when the speed changes, if the higher speed of the two exceeds 20 times the lower speed of the two, a streak will occur when the speed changes. Therefore, in the present embodiment, it is preferable that the speed ratio when the speed is changed is set such that the higher speed of the two is not more than 20 times the lower speed of the two. In addition, the conveyance of the substrate 1 and the feeding of the laminated film 2 are interrupted from the time when the front end 16a of the film 16 with the adhesive starts to be adhered to the substrate 1 until the time when the rear end 16b of the film 16 with the adhesive is completely adhered. It is preferable to continue without doing.

  Further, in the present embodiment, the film 16 with the adhesive is half-cut by sliding the disk-shaped fixed blade in the width direction of the laminated film 2 while rotating. As a result, compared to other film cutting methods, such as laser half-cut, Thomson blade half-cut or full cut by round blade rotation, all cuts by shear and all cuts by cut-off blade, accuracy, amount of chips generated, bubbles It is possible to improve the mixing amount, the foreign material mixing amount, and the maintainability, and it can be suitably used for cutting the film with the adhesive in the laminating apparatus of the present embodiment.

  In the present embodiment, the half-cut unit is provided at a position distant from the peeling body 7, specifically, at a position away from the peeling portion 91. Further, the half cut unit 80 is arranged on the downstream side in the substrate transport direction. As a result, the possibility that the shavings generated by the half-cutting can enter between the adhesive-coated film 16 and the substrate 1 can be reduced, and the lamination quality can be improved. Further, since the adhesive surface of the film with the adhesive peeled off by the release body 7 faces the laminate roll with the adhesive surface facing the substrate 1, the possibility of foreign matter entering between the film 16 with the adhesive and the substrate 1 is further reduced. can do. In addition, since the adhesive surface faces downward with the adhesive surface of the film 16 with the adhesive exposed, the risk of foreign matter entering between the film 16 with the adhesive and the substrate 1 can be further reduced.

  Further, in the present embodiment, while the half-cut unit 80 serving as a moving body is moving with respect to the laminated film 2 configured by forming the translucent pattern region on the translucent support film, the One surface is irradiated with light such as laser light at a predetermined oblique angle α that is not vertical. On the other surface of the laminated film 2, light passing through the laminated film 2 is reflected by a reflecting mirror. The light passes through the laminated film 2 again and receives the reflected light having passed through the laminated film 2 at the one surface. By detecting a change in the intensity of the received light, the position of the pattern area 3a is detected.

  By passing the light obliquely to the surface of the laminated film 2, the light transmission length can be lengthened, and the light reflected by the reflecting mirror also passes obliquely. Thus, the path of the light passing through the laminated film 2 can be made as long as possible. Therefore, the change in the intensity of the received light depending on the presence or absence of the pattern region 3a on the support film can be made as large as possible, and the detection of the pattern region can be ensured.

  The optical path of the laser beam exists in a virtual plane 54 perpendicular to the direction in which the laminated film 2 is supplied, that is, the longitudinal direction of the laminated film 2. As a result, the laser light from the laser emitting means and the light reflected by the reflecting mirror exist in the virtual plane, and therefore, the presence or absence of the pattern area 3a of the laminated film 2 being supplied is accurately detected, and the pattern area 3a is detected. The position can be accurately detected.

  Further, the moving amount when the half-cut unit 80 moves with respect to the laminated film 2 is detected by the half-cut unit position detecting means 82 serving as a moving amount detecting sensor, and the downstream end 75 of the pattern area 3a in the supply direction, that is, the front end is detected. Alternatively, the end portion 76 upstream of the supply direction, that is, the rear end portion, is detected by the level change detecting means 57, 70. By obtaining the output of the half-cut unit position detecting means 82 corresponding to the moving amount of the half-cut unit 80 in the supply direction detected by the level change detecting means, the position of the pattern region 3a in the long direction of the laminated film 2 can be determined. Accurate detection is possible, and a predetermined position with respect to the pattern area 3a can be half-cut by the cutter 121.

  In addition, the laser receiving unit irradiates a laser beam to the center in the width direction of the laminated film 2. When the pattern region 3a is displaced due to angular displacement around a virtual line vertically penetrating the laminated film 2, as one comparative example, when one end in the width direction of the laminated film 2 is irradiated with laser light, When the laser beam is applied to the other end in the direction, the detection result of the pattern region 3a varies. On the other hand, in the present invention, by irradiating the central portion in the width direction of the laminated film 3a with the laser beam, the pattern region 3a is angularly displaced around the virtual line vertically penetrating the laminated film 2 as described above. Even if it is shifted, the average position of the pattern area can be detected.

  Further, in the present embodiment, a pattern detection sensor 122 serving as a pattern area detecting means and a cutter 121 serving as a cutting means are integrally formed in the half cut unit. The pattern detecting means 122 is displaced and moved with respect to the laminated film 2 in order to detect the end of the pattern area 3a in the supply direction. The cutter 121 is displaced with respect to the laminated film 2 to cut the laminated film 2. By being provided integrally, there is no need to separately form a mechanism for displacing and moving the pattern detecting means 122 and the cutter 121, and the apparatus can be downsized.

  Further, the processing circuit 31 controls the pinch roll and the like based on the cutting position of the laminated film 2 to determine the supply amount of the laminated film 2. For example, when the cut position differs according to the pattern region as in the second operation, the amount of winding the laminated film 2 by the pinch roll is made to match the length of the film with the adhesive in the longitudinal direction. By matching the cutting position of the laminated film 2 and the supply amount of the laminated film 1 in this manner, the film can be laminated on the adherend without excess and deficiency.

  Further, the cutter 121 cuts the film 16 with the adhesive while leaving the separate film 4, that is, cuts the film 16 with the adhesive, so that the film 16 with the adhesive can be transported in a cut state. Thereby, the cutter 121 can be arranged on the upstream side of the pattern film transport from the release body 7. Moreover, the film 16 with an adhesive can be cut | disconnected in the state which stopped conveyance of the film 16 with an adhesive. Thus, the structure of the cutter 121 can be simplified, and the number of options for the mounting position of the cutter 121 can be increased.

  According to each of the embodiments, the film with the adhesive can be laminated on the substrate surface without generating a line or the like, which is presumed to be caused by the deformation of the adhesive layer of the film with the adhesive. Therefore, the present invention is extremely effective as a method of laminating an electromagnetic wave shielding film, an antireflection film, an infrared shielding film, or the like on the surface of a display device such as a display, a method of laminating a protective film or the like on the surface of a printed circuit board, or the like.

FIG. 1 is a simplified plan view of a pattern film 2 which is a laminated film according to a first embodiment of the present invention. FIG. 2 is an example of a simplified cross-sectional view showing the entire configuration of the first embodiment of the present invention. FIG. 3 is a cross-sectional view of the pattern film 2 in the embodiment of FIGS. 1 and 2. FIG. 4 is a cross-sectional view of another embodiment of the pattern film 2 in the embodiment of FIGS. 1 and 2. FIG. 5 is a plan view showing the pattern film 2 shown in FIG. FIG. 5 is a cross-sectional view as viewed from a section line S4-S4 in FIG. 4. FIG. 5 is a cross-sectional view taken along the line S7-S7 of FIG. 4. FIG. 3 is a simplified perspective view of a pattern film 2. FIG. 7 is a simplified perspective view of a pattern film 2 according to another embodiment of the present invention. FIG. 6 is a cross-sectional view of the position detection device 46. FIG. 3 is a diagram showing a configuration of a position detection device 46. FIG. 3 is a simplified plan view of a product 26 in which a film 16 with an adhesive is adhered and laminated on the upper surface of the substrate 1 in FIG. 2. FIG. 13 is a block diagram showing an electrical configuration of the first embodiment of the present invention shown in FIGS. 1 to 12. FIG. 14 is a simplified side view showing the operation of the first embodiment of the present invention shown in FIGS. 1 to 13. 5 is a flowchart for explaining the operation of the processing circuit 31. FIG. 9 is a simplified cross-sectional view showing the entire configuration of the second embodiment of the present invention. FIG. 2 is a simplified plan view of a product 26 in which a film 16 with an adhesive is adhered to an upper surface of a substrate 1 and laminated. FIG. 4 is a cross-sectional view of the vicinity of a peeling body 7. FIG. 19 is an enlarged sectional view of the vicinity of a peeling portion 18 of the peeling body 7 shown in FIG. 18. FIG. 19 is an enlarged cross-sectional view of the vicinity of a peeling portion 18 of the peeling body 7 corresponding to FIG. 18. FIG. 21 is a block diagram showing an electrical configuration of the embodiment of the present invention shown in FIGS. 16 to 20. 5 is a flowchart for explaining the operation of the processing circuit 31. It is a figure which shows the supply speed V of the laminated film 2 by the pinch rolls 9a and 9b, and the film 16 with an adhesive. FIG. 11 is a simplified cross-sectional view of a third embodiment of the present invention. FIG. 25 is a diagram showing a state where the laminated film 2 is cut by the cutter 10b shown in FIG. 24. FIG. 26 is a simplified block diagram showing an electrical configuration in the embodiment shown in FIGS. 24 and 25 of the present invention. 15 is a flowchart for explaining an operation of the processing circuit 31 according to the third embodiment of the present invention. It is the sectional view which simplified a part of laminating device 100 which is a 4th embodiment of the present invention. FIG. 2 is a diagram showing the entire laminating apparatus 100. FIG. 3 is a cross-sectional view showing a raw sheet section 90. It is sectional drawing which shows the sticking part 91 and the cutting part 92. FIG. 4 is a diagram for explaining a cutting unit 92. FIG. 9 is a plan view showing a substrate transport unit 93. It is a block diagram showing the electric composition of laminating device 100 of a 3rd form. 15 is a flowchart illustrating a first operation of a processing circuit 31 according to a fourth embodiment. 5 is a timing chart showing an operation of each means in the first operation. 15 is a flowchart for explaining a second operation of the processing circuit 31 in the fourth embodiment. It is a timing chart which shows operation of each means in the 2nd operation. FIG. 4 is a diagram showing tension applied to a separate film 4. It is a figure for explaining sticking of tip part 16a of film 16 with an adhesive. It is a figure for explaining sticking of rear end part 16b of film 16 with an adhesive.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Substrate 1a Downstream end 1b Upstream end 2 Pattern film 2a Supporting film 3 Adhesive 3a Pattern area 4 Separate films 8a, 8b Laminating roll 10 Cutter 11 Injection conveyance means 12 Upstream end sensor 13 Downstream end sensor 14 Ejection conveyance means Reference Signs List 16 Film with adhesive 16a Front end 16b Rear end 18 Peeling section 21 Supply direction 23 Transport direction 24 Surface area 31 to be pasted Processing circuit 33 Length sensor 46 Position detecting device 47 Suction member 51 Laser emission means 52 Laser reception Means 54 Virtual plane 58 Reflector 75 Downstream end 76 Upstream end

Claims (8)

A plurality of pattern regions having a pattern at intervals in the long direction of the long support film, the pattern film sequentially formed, supply in the long direction,
Detect the supply direction downstream end or upstream end of the pattern region of the supplied pattern film,
The film is characterized in that the pattern film is laminated on the adherend so that the downstream end or the upstream end of the pattern region in the supply direction is located at a predetermined position on one surface of the adherend. Lamination method. A plurality of pattern regions having a pattern at intervals in the longitudinal direction of the long support film, a pattern film sequentially formed, supply means for supplying in the longitudinal direction,
A pattern region detecting means for detecting a supply direction downstream end or an upstream end of the pattern region of the supplied pattern film,
Conveying means for conveying the adherend,
Laminating means for laminating the pattern film to the adherend,
Control means for controlling the supply means and the transport means such that the downstream end or the upstream end of the pattern area in the supply direction is at a predetermined position on one surface of the adherend. Means for laminating a film. Further comprising cutting means for cutting the pattern film supplied from the supply means,
3. The film laminating apparatus according to claim 2, wherein the control means cuts the pattern film between the pattern areas by the cutting means as one function. Provided in the middle of the transport path of the transport means, further includes an adhered object detecting means for detecting the adhered object,
The control means, as one function, responds to the output of the adhered object detection means and controls the supply means and the transport means so that the downstream end or the upstream end of the pattern area is attached to the adhered object. The film laminating apparatus according to claim 2 or 3, wherein the laminating means is used for laminating so as to be present at the predetermined position. The length L21 of the pattern area in the length direction of the pattern film is a predetermined first length L210, which is predetermined.
The length L22 between the pattern regions adjacent in the longitudinal direction is a predetermined second length L220, and
The apparatus further includes a length sensor that detects a supply length of the supply means of the pattern film,
The control means is
Responds to the output of the length sensor,
Only in a range over a predetermined supply length before and after the supply direction in which the downstream end or the upstream end of the pattern region to be detected by the pattern region detection means is present,
5. The film laminating apparatus according to claim 2, wherein the pattern area detecting means is activated.   The film laminating apparatus according to claim 3, wherein the pattern area detecting means and the cutting means are formed integrally.   4. The laminating apparatus according to claim 3, wherein the control means controls the supply means based on a cutting position of the pattern film cut by the cutting means. The pattern film is a long laminated film covered with a peelable separate film on the adhesive of the film with the adhesive,
Laminating means is to separate the separate film from the film with the adhesive, laminate the film with the adhesive to the adherend,
The laminating apparatus according to claim 3, wherein the cutting means cuts the film with the adhesive while leaving the separate film.

Images