JP5873308B2 - Film material bonding equipment - Google Patents

Description

  The present invention relates to a film material bonding apparatus.

  DESCRIPTION OF RELATED ART Conventionally, the bonding apparatus of the film material which bonds a polarizing film to a liquid crystal panel and manufactures an optical display apparatus is known. The film material laminating apparatus includes a transport conveyor that transports the liquid crystal panel, an unwinding section that is disposed below the transport conveyor and supports a roll that has wound the polarizing film sheet, and is adjacent to the unwinding section. And another unwinding portion that supports another roll to be used next. A cutting device and a knife edge are arranged below the conveyor, and the polarizing film sheet unwound from the roll is half-cut with the cutting device, the protective film is peeled off with the knife edge, and the cut polarizing film is removed with a nip roll. Bonded to the LCD panel. Here, each unwinding part has a structure that can move in a direction along the winding core direction of the polarizing film sheet, that is, a direction orthogonal to the conveying direction of the conveyor, and the roll can thus move the unwinding part from below the conveyor. It is attached to the unwinding part in the pulled-out state (see Patent Document 1).

JP 2011-154340 A

In the conventional film material laminating apparatus, it is advantageous in that the roll supply operation can be performed in a short time because a new roll can be mounted in a state where each unwinding part of each roll is pulled out in the horizontal direction. In order to pull out this unwinding part to the side of the conveyer, install a new roll and push it again below the conveyer, the unrolled part pulled out to the side of the conveyer is a heavy load In addition, a rail that supports and guides the lower side is required.
For this reason, the rail protrudes to the side of the conveyor, which increases the width of the conveyor line and necessitates a large apparatus installation space. Moreover, the rail which protruded to the side of the conveyance conveyor obstructs the operation | work in the direction along a conveyance conveyor, and also has the problem that the work around a conveyance conveyor will be restrict | limited.

  Then, this invention aims at providing the bonding apparatus of the film material which does not cause trouble in the operation | work in the periphery, suppressing installation space to the minimum.

As a means for solving the above problems, the film material laminating apparatus of the present invention includes a transport conveyor on which an optical member to be bonded is transported,
A transport device for unwinding and transporting the film material from a roll wound with a film material to be bonded to the optical member;
A bonding unit for bonding the film material conveyed by the conveying device to the surface of the optical member sent from the conveying conveyor;
A transport carriage that supports the roll,
The transport carriage is provided so as to be movable between a storage area of the roll and a roll arrangement position below the transport conveyor,
The transport carriage includes a base portion including a traveling device and a roll support portion that supports the roll on the base portion,
The roll support part is supported in a horizontal plane so that the posture can be changed with respect to the base part,
A position adjusting device is provided between the transport carriage and the transport conveyor for positioning the roll support portion with respect to the transport conveyor and adjusting the orientation of the roll shaft to an appropriate position. To do.

  In addition, the position adjustment device holds an air levitation device that brings the roll support portion into an air levitation state with respect to the base portion of the transport carriage, and holds a peripheral wall of the roll support portion from the outside, so that the shaft of the roll And a horizontal positioning device for positioning with respect to the conveyor in a horizontal plane.

  In addition, an outer wall of the roll support portion is formed in a rectangular shape in plan view, and the horizontal positioning device sandwiches a corner portion of the outer wall of the roll support portion from a diagonal line with a pair of actuators so that the axis of the roll is You may position in a horizontal surface.

  Moreover, the said conveyance cart may make it possible to unwind the said film material under the said conveyance conveyor in the state which supported the said roll to the said roll support part.

  According to this invention, since the roll can be disposed below the transport conveyor simply by moving the transport carriage on which the roll is set below the transport conveyor, the rail for loading the roll is disposed on the side of the transport conveyor. There is no need to do this, and the space for arranging the conveyor is reduced accordingly. Therefore, the installation space for the entire apparatus is reduced and the cost can be reduced. In addition, since the rail does not protrude to the side of the transport conveyor, there are no obstacles in the area on the side of the transport conveyor, making it easier to work around the apparatus.

  The roll set on the transport carriage can be changed in posture in the horizontal plane with respect to the base portion, and the position of the roll support portion with respect to the transport conveyor is adjusted by the position adjusting device. Since the direction can be set to an appropriate position, the unwinding direction of the roll can be adjusted accurately and the roll splicing operation can be performed without any trouble.

1 is an overall side view of an embodiment of the present invention. It is A arrow directional view of FIG. It is a top view of the liquid crystal panel of embodiment of this invention. It is sectional drawing of the polarizing film sheet of embodiment of this invention. It is a perspective view of the conveyance trolley | bogie of embodiment of this invention. FIG. 6 is an exploded perspective view of FIG. 5. It is a top view which shows the condition where the conveyance trolley | bogie of embodiment of this invention is located under a roller conveyor. It is a principal part enlarged side view of FIG.

  Next, 1st Embodiment of this invention is described based on drawing. 1 and 2 show a film material laminating apparatus 1 according to an embodiment of the present invention. The film material laminating apparatus 1 is provided in a laminating process which is one process of the production line of the liquid crystal panel P, and a polarizing film F1 whose polarization axes are orthogonal to each other is bonded to the front and back surfaces of the liquid crystal panel P. Device.

As shown in FIG. 3, the liquid crystal panel P is used in an optical display device such as a television set, is formed in a rectangular shape, and is disposed in a first substrate P1 and a first substrate P1 facing the first substrate P1. Two substrates P2 and a liquid crystal layer P3 sealed between the first substrate P1 and the second substrate P2. A range that fits inside the outer periphery of the liquid crystal layer P3 is a display region P4.
The polarizing film affixed on the front and back of this liquid crystal panel P is cut out while unwinding a polarizing film sheet wound in a roll shape.

FIG. 4 shows a cross-sectional view of the polarizing film sheet. In FIG. 4, cross-sectional hatching is omitted for the sake of illustration. In FIG. 4, a polarizing film sheet F includes a polarizing film F1, a separator F3 that is peelably laminated via an adhesive layer F2 applied to one surface (upper surface in the drawing) of the polarizing film F1, and a polarizing film F1. It is comprised with the surface protection film F4 (separated later) laminated | stacked on the other surface (lower side in a figure). The polarizing film F1 functions as a polarizing plate, and is bonded over the entire display area P4 of the liquid crystal panel P and its peripheral area.
The polarizing film F1 is bonded to the liquid crystal panel P by the adhesive layer F2 exposed by peeling the separator F3. In addition, the part remove | excluding the separator F3 from the polarizing film sheet F becomes the bonding sheet | seat F5.
The polarizing film F1 is configured by sandwiching both surfaces of a polarizer F6 between a first film F7 and a second film F8.

Here, the structure which the polarizing film sheet F does not contain the surface protective film F4, or the structure where the surface protective film F4 is not isolate | separated from the polarizing film F1 may be sufficient.
In addition, the polarizing film F1 may have a single layer structure including one optical layer, or may have a stacked structure in which a plurality of optical layers are stacked on each other, and does not include at least one of the first film F7 and the second film F8. Also good. For example, when the first film F7 is omitted, the separator F3 may be bonded to one surface of the polarizing film F1 via the adhesive layer F2.

As shown in FIG. 1, the film material laminating device 1 reaches from the upstream side in the transport direction of the liquid crystal panel P on the right side in the drawing to the downstream side in the transport direction of the liquid crystal panel P on the left side in the drawing, It is provided with a drive type roller conveyor 5 which is conveyed by
The roller conveyor 5 is divided into an upstream conveyor 6 and a downstream conveyor 7 with a first reversing device 15 described later as a boundary. In the upstream conveyor 6, the liquid crystal panel P is conveyed so that the short side of the display area P4 is along the conveyance direction, and in the downstream conveyor 7, the liquid crystal panel P is such that the long side of the display area P4 is along the conveyance direction. (See FIG. 2). A bonding sheet F5 cut out to a predetermined length from the belt-shaped polarizing film sheet F is bonded to the front and back surfaces of the liquid crystal panel P. Each part of the film material bonding apparatus 1 is controlled by a control unit (not shown).

  The film material bonding apparatus 1 sucks the liquid crystal panel P transported to the carry-out end of the previous step and transports it to the carry-in end of the upstream conveyor 6 and performs alignment (positioning) of the liquid crystal panel P. 11, a first dust collector 12 provided on the panel transport downstream side of the first suction device 11, a first bonding device 13 provided on the panel transport downstream side of the first dust collector 12, and a first paste The first misalignment inspection device 14 disposed on the downstream side of the panel conveyance with respect to the combination device 13 and the single-side bonding that has been disposed on the downstream side of the conveyance of the panel with respect to the first displacement inspection device 14 and has reached the carry-out end of the upstream conveyor 6. A first reversing device 15 is provided at a position reaching the carry-in end of the downstream conveyor 7 in a state where the panel P11 is turned upside down and turned 90 °.

  Moreover, the film material bonding apparatus 1 is disposed on the panel transport downstream side of the second dust collector 16 and the second dust collector 16 disposed on the panel transport downstream side of the carry-in end of the downstream conveyor 7. The second bonding apparatus 17, the second displacement inspection apparatus 18 disposed on the downstream side of the panel transport relative to the second bonding apparatus 17, and the panel transportation downstream of the second displacement inspection apparatus 18. A second reversing device 19 and a defect inspection device 21 disposed on the panel transport downstream side of the second reversing device 19 are provided.

The first suction device 11 holds the liquid crystal panel P, aligns the liquid crystal panel P so as to be movable in the vertical direction and the horizontal direction, and is provided in the panel holding portion 11a to align the liquid crystal panel P. And an alignment camera 11b that can be used.
The panel holding unit 11a sucks and holds the liquid crystal panel P transported to the carry-out end of the previous stage by vacuum suction with the suction pad 26 of the suction table 25, and in that state, transports it to the carry-in end of the upstream conveyor 6, When finished, the suction state of the liquid crystal panel P is released and the liquid crystal panel P is delivered to the carry-in end of the upstream conveyor 6.

  The alignment camera 11b photographs the alignment mark, the tip shape, and the like of the liquid crystal panel P when the liquid crystal panel P held by the panel holding portion 11a is placed on the upstream conveyor 6. Imaging data from the alignment camera 11b is transmitted to the control device, and the panel holding unit 11a is operated based on the imaging data to align the liquid crystal panel P with the upstream conveyor 6. At this time, the liquid crystal panel P is at a predetermined position in the direction perpendicular to the transport direction with respect to the upstream conveyor 6, that is, in the width direction of the upstream conveyor 6, and in the turning direction around the vertical axis of the liquid crystal panel P. Positioned.

  The 1st dust collector 12 is provided in the panel conveyance upstream in the vicinity of the bonding position of the 1st bonding apparatus 13, and the static electricity removal of the lower surface side of liquid crystal panel P just before being introduced into the bonding position And collect dust.

The 1st bonding apparatus 13 bonds the bonding sheet | seat F5 cut into the predetermined size with respect to the lower surface of liquid crystal panel P introduced into the bonding position.
As for the 1st bonding apparatus 13, the conveying apparatus 22 which conveys the polarizing film sheet F along the longitudinal direction, unwinding the polarizing film sheet F from the roll R1 in which the polarizing film sheet F was wound, and the conveying apparatus 22 There is provided a pinching roll 23 for bonding a bonding sheet F5 having a predetermined length separated from the polarizing film sheet F to the lower surface of the liquid crystal panel P conveyed by the upstream conveyor 6. Here, the roll R1 is set on a transport carriage 30 described later.

  The conveying device 22 conveys the bonding sheet F5 using the separator F3 as a carrier, and unwinds the polarizing film sheet F from a roll holding portion 39 of a conveyance carriage 30 (described later) that rolls out the polarizing film sheet F along its longitudinal direction, and the roll R1. A plurality of guide rollers 22b for winding the polarizing film sheet F to guide the polarizing film sheet F along a predetermined conveying path, a cutting device 22c for half-cutting the polarizing film sheet F on the conveying path, and a half cut The polarizing film sheet F subjected to the above is wound at an acute angle, the bonding sheet F5 is peeled from the separator F3, and the bonding sheet F5 is supplied to the bonding position, and the knife edge 22d is used alone. A winding portion 22e that holds a separator roll R2 that winds the separator F3 is provided. In FIG. 1, the guide rollers 22b are shown in a simplified arrangement, and the entire conveyance carriage 30 that supports the roll R1 is not shown.

  Here, another roll R1 for paper splicing is disposed adjacent to the roll R1. This roll R1 is also supported by another transport carriage 30 described later.

  The roll holding unit 39 located at the carry-in end of the transport device 22 and the winding unit 22e located at the carry-out end of the transport device 22 are driven in synchronization with each other. Thereby, the winding part 22e winds up the separator F3 which passed through the knife edge 22d, while the roll holding | maintenance part 39 pays out the polarizing film sheet F to the conveyance direction. Hereinafter, the upstream side in the transport direction of the polarizing film sheet F (separator F3) in the transport device 22 is referred to as the upstream side of the sheet transport, and the downstream side in the transport direction is referred to as the downstream side of the sheet transport.

  Each guide roller 22b changes the traveling direction of the polarizing film sheet F being conveyed along the conveying path, and at least a part of the plurality of guide rollers 22b is movable so as to adjust the tension of the polarizing film sheet F being conveyed. To do.

The cutting device 22c is a half cut that cuts a part in the thickness direction of the polarizing film sheet F over the entire width in the width direction orthogonal to the longitudinal direction of the polarizing film sheet F when the polarizing film sheet F is fed out a predetermined length. I do.
Half-cutting adjusts the advancing / retreating position of the cutting blade so that the polarizing film sheet F (separator F3) is not broken by the tension acting during conveyance of the polarizing film sheet F, and the separator F3 remains with a predetermined thickness. Cut into the vicinity of the boundary surface between F2 and separator F3.

  The polarizing film sheet F after the half cut is formed with a cut line in which the polarizing film F1 and the surface protective film F4 are cut in the thickness direction over the entire width in the width direction of the polarizing film sheet F. Cut lines are formed at predetermined intervals in the longitudinal direction of the strip-shaped polarizing film sheet F, and the polarizing film sheet F is divided into a plurality of sections in the longitudinal direction by the plurality of cutting lines. Each division part pinched | interposed into a pair of cutting line adjacent in the longitudinal direction of the polarizing film sheet F turns into the bonding sheet | seat F5 which is one sheet piece.

The knife edge 22d is disposed below the upstream conveyor 6 and extends in the width direction of the polarizing film sheet F at least over its entire width. The knife edge 22d is wound so that the separator F3 side of the polarizing film sheet F after half-cutting is in sliding contact.
The polarizing film sheet F peels off the bonding sheet F5 partitioned as a sheet piece from the separator F3 when the traveling direction is changed so as to be bent at an acute angle at the tip of the knife edge 22d. The front end portion of the knife edge 22d is disposed close to the panel conveyance downstream side of the pinching roll 23, and the bonding sheet F5 peeled from the separator F3 by the knife edge 22d is the lower surface of the liquid crystal panel P conveyed by the upstream conveyor 6. Are introduced between the pair of laminating rollers 23a and 23a of the pinching roll 23.

  The pinching roll 23 has a pair of bonding rollers 23a and 23a that are arranged with their axial directions parallel to each other. A predetermined gap is formed between the pair of bonding rollers 23 a and 23 a, and the position of this gap becomes the bonding position of the first bonding apparatus 13. The liquid crystal panel P and the bonding sheet F5 are overlapped and introduced into the gap between the pair of bonding rollers 23a and 23a, and the liquid crystal panel P and the bonding sheet F5 are pressed between the bonding rollers 23a while being transported downstream of the panel. Sent to the side. Thereby, the bonding sheet | seat F5 is integrally bonded by the lower surface of liquid crystal panel P, and it becomes the single-sided bonding panel P11.

  The 1st shift | offset | difference test | inspection apparatus 14 test | inspects whether the position of the bonding sheet | seat F5 with respect to liquid crystal panel P is appropriate in the single-sided bonding panel P11 (whether a position shift exists in a tolerance range). The first misalignment inspection device 14 includes a pair of cameras 14a that photograph the edge of the bonding sheet F5 on the upstream side and the downstream side of the single-sided bonding panel P11, for example. The imaging data by each camera 14a is transmitted to the control device, and based on this imaging data, it is determined whether or not the relative positions of the bonding sheet F5 and the liquid crystal panel P are appropriate. The single-sided bonding panel P11 determined to have an inappropriate relative position is discharged out of the line by a payout means (not shown).

As shown in FIG. 2, the first reversing device 15 includes, for example, a rotating shaft 15a inclined at 45 ° in a plan view with respect to the transport direction of the liquid crystal panel P, and an upstream conveyor via the rotating shaft 15a. 6 and a reverse arm 15b supported between the carry-in end of the downstream conveyor 7 and the carry-in end of the downstream conveyor 7. The reversing arm 15b is held by adsorbing or sandwiching the single-sided bonding panel P11 that has reached the carry-out end of the upstream conveyor 6 via the first misalignment inspection device 14, and the reversing arm 15b is rotated 180 around the rotation shaft 15a. By rotating, the front and back of the single-sided bonding panel P11 are reversed, and the single-sided bonding panel P11 that has been conveyed in the direction along the short side of the display region P4 is conveyed in the direction along the long side of the display region P4. Rotate as you do.
The single-sided bonding panel P11 is turned by the first reversing device 15 so that the polarizing axes of the polarizing films F1 bonded to the front and back surfaces of the liquid crystal panel P are perpendicular to each other.

  Therefore, the upstream conveyor 6 and the downstream conveyor 7 both have the direction from the right side to the left side in the drawing as the transport direction of the liquid crystal panel P, but the upstream conveyor 6 and the downstream conveyor 7 pass through the first reversing device 15. The side conveyor 7 is offset by a predetermined amount in the width direction in plan view. In addition, what is necessary is just to use the reversing apparatus which has a reversing arm which has a rotating shaft parallel to a conveyance direction, for example, when only reversing the front and back of a bonding target object.

  Here, the reversing arm 15 b includes an alignment camera 15 c similar to the alignment camera 11 b of the first suction device 11, and has an alignment function similar to that of the panel holding unit 11 a of the first suction device 11.

  The 2nd dust collector 16 is provided in the panel conveyance upstream in the vicinity of the bonding position of the 2nd bonding apparatus 17, and the static electricity of the lower surface side of the single-sided bonding panel P11 just before being introduced into the bonding position. Remove dust and collect dust.

The 2nd bonding apparatus 17 bonds the bonding sheet | seat F5 cut into the predetermined size with respect to the lower surface of the single-sided bonding panel P11 introduced into the bonding position. The 2nd bonding apparatus 17 is provided with the conveying apparatus 22 and the pinching roll 23 similar to the 1st bonding apparatus 13. FIG.
When the polarizing film sheet F used by this 2nd bonding apparatus 17 is drawn out predetermined length, the cutting apparatus 22c of the 2nd bonding apparatus 17 gives a half cut with respect to this polarizing film sheet F, and becomes strip | belt-shaped polarization | polarized-light. A plurality of score lines arranged in the longitudinal direction of the film sheet F are formed. The polarizing film sheet F is divided into a plurality of sections in the longitudinal direction by a plurality of cut lines. Each division part pinched | interposed into a pair of cutting line adjacent in the longitudinal direction of the polarizing film sheet F turns into the bonding sheet | seat F5 which is one sheet piece.

  The pinching roll 23 has a pair of bonding rollers 23a and 23a arranged in parallel with each other in the axial direction, and a predetermined gap is formed between the pair of bonding rollers 23a and 23a. The position becomes the bonding position of the second bonding apparatus 17. In the gap, the single-sided bonding panel P11 and the bonding sheet F5 are introduced in a state of being overlapped, and the single-sided bonding panel P11 and the bonding sheet F5 are pressed between the bonding rollers 23a and the panel transport downstream side. Sent out. Thereby, the bonding sheet | seat F5 is integrally bonded to the lower surface of the single-sided bonding panel P11, and it becomes the double-sided bonding panel P12.

  In addition, also in the case of the 2nd bonding apparatus 17, similarly to the 1st bonding apparatus 13, the roll R1 and the other roll R1 which waits for paper splicing adjacent to this are each transporting carriage 30, 30.

  The second misalignment inspection device 18 inspects whether or not the position of the bonding sheet F5 with respect to the liquid crystal panel P is appropriate (whether the misalignment is within the tolerance range) in the double-sided bonding panel P12. The 2nd shift | offset | difference inspection apparatus 18 has a pair of camera 18a which image | photographs the edge of the bonding sheet | seat F5 in the panel conveyance upstream and downstream of the double-sided bonding panel P12, for example. The imaging data by each camera 18a is transmitted to the control device, and it is determined based on this imaging data whether the relative positions of the bonding sheet F5 and the liquid crystal panel P are appropriate. The double-sided bonding panel P12 determined to have an inappropriate relative position is discharged out of the line by a not-shown dispensing means.

  Here, as shown in FIG. 1, in the 1st bonding apparatus 13 and the 2nd bonding apparatus 17, each roll R1 and other roll R1 can be arrange | positioned by a pair for paper joining, Each roll R1 is supported by a transport carriage 30 shown in FIG. In addition, since the roll R1, R1 of the structure similar to the 1st bonding apparatus 13 is arrange | positioned at the 2nd bonding apparatus 17, the roll R1 is mounted | worn with the conveyance cart 30 in the 1st bonding apparatus 13 in the following description. This will be described as an example.

  As shown in FIGS. 5 and 6, the transport carriage 30 includes a base portion 32 having four wheels 31 and a roll support portion 33 that can float on the base portion 32. Therefore, the roll support portion 33 is supported with respect to the base portion 32 so that the posture can be changed in a horizontal plane. A roll R1 is rotatably supported by the roll support portion 33. The transport carriage 30 is provided so as to be capable of reciprocating between a roll accommodation area E in which a plurality of rolls R1 are stocked and the arrangement position of the rolls R1 below the roller conveyor 5. As the carriage 30, a tracked or magnetic induction type automated guided vehicle (AGV) can be used.

  The base portion 32 of the transport carriage 30 is formed in a rectangular shape in plan view, and includes four traveling wheels 31 below the side wall 34. An air levitation device 29 is provided on the base portion 32. An air supply device 35 is provided inside the base portion 32, and a discharge pipe 35 a of the air supply device 35 is connected to the air floating ball unit 36. The air levitation ball unit 36 is mounted so as to be able to float in a plurality of grooves in the front-rear direction of the upper surface 37 of the base portion 32, floats when air is supplied from the air supply device 35, and rolls from the upper surface 37 of the base portion 32. Make possible balls protrude. The air supply device 35, the discharge pipe 35 a and the air levitation ball unit 36 constitute an air levitation device 29.

  Thus, when the ball protrudes, the roll support portion 33 that has been in contact with the base portion 32 until then is lifted slightly (about 1 mm to several millimeters) upward from the upper surface 37 of the base portion 32 by the ball. The roll support portion 33 can move with respect to the base portion 32 in a horizontal plane with a slight force.

  The roll support portion 33 of the transport carriage 30 includes a base plate 38, a pair of roll holding portions 39, 39 standing on the base plate 38, and a roll support shaft 40 spanned between the roll holding portions 39, 39. Yes. The base plate 38 is formed in a rectangular shape in plan view, specifically, a rectangle in which the included angle between the side wall and the front and rear walls is formed at a right angle. A roll R1 is rotatably supported on the roll support shaft 40, and a polarizing film sheet F can be fed out from the roll R1 by a drive mechanism provided in the roll holder 39. The roll holding unit 39 of the transport carriage 30 constitutes a part of the transport device 22.

  In the roll accommodating area E, a new roll R1 is inserted into the roll spindle 40 of the roll support portion 33 of the transport carriage 30 that has become empty due to the use of the roll R1, and the roll R1 is rotatably mounted on the transport carriage 30. Is done.

  FIG. 7 is a plan view showing a state where the transport carriage 30 in which the roll R1 is set is arranged at one roll arrangement position of the first bonding apparatus 13, and FIG. 8 is a partially enlarged view of FIG. As shown in FIG. 7, the position of the roll R <b> 1 of the roller conveyor 5, that is, the lower part of the first bonding device 13, guides the upper part of the side wall 34 of the base portion 32 of the transport carriage 30, A pair of guide bars 41 is provided in a direction orthogonal to the transport direction. On the inner side of each tip portion of the guide bars 41, 41, an inclined portion 42 formed outward, and a guide portion 43 extending from the base portion of the inclined portion 42 in a direction perpendicular to the conveying direction of the roller conveyor 5, Is formed. An inclined portion 42 is also provided at the base end portion of the guide bar 41 so that the transport carriage 30 can be easily received even when the receiving direction of the transport carriage 30 is reversed.

The roller conveyor 5 holds the base plate 38 of the roll support portion 33 of the transport cart 30 diagonally from the outside, and the roll support portion 33, that is, the roll support shaft 40 of the roll R1 is appropriate for the roller conveyor 5 in a plane. A horizontal positioning device 50 is provided for positioning and adjusting the position. The horizontal positioning device 50 presses and holds the pair of front and rear walls and the corners of the side wall located on one diagonal line of the base plate 38 with a pair of clampers 51 and 51 that are also arranged on the diagonal line. The roll support shaft 40 of the roll R1, that is, the roll R1 is positioned in the horizontal plane in the transport direction of the roller conveyor 5 and the direction orthogonal thereto.
At the tip of each clamper 51, a pressing body 52 having a right engaging surface 52a that comes into contact with and abuts against a corner pressed by the base plate 38 is attached. The clamper 51 allows the roll support portion 33 to move downward in a clamped state.

  A hydraulic pressure supply device 53 is connected to each clamper 51, and each clamper 51 moves forward and backward by the hydraulic pressure supply device 53. Here, since the vertical position of the roll support portion 33 of the transport carriage 30 is determined by the height dimension of the roll support portion 33 including the base portion 32 and the wheels 31, the height position is set to an appropriate position. The height of each part is set within a range that does not hinder the paper splicing described later. The clamper 51 and the hydraulic pressure supply device 53 constitute the horizontal positioning device 50.

  FIG. 8 is an enlarged side view of the main part of FIG. As shown in FIG. 8, below the 1st bonding apparatus 13, the two conveyance trolley | bogie 30 is arrange | positioned in the state which each supported roll R1. The left transport cart 30 unwinds the polarizing film sheet F wound around the roll R1 at the present time, and the right transport cart 30 stands by while holding the roll R1. The left roll R1 unwinds the polarizing film sheet F toward the lower right side, and the right roll R1 pulls out the terminal of the polarizing film sheet F to the upper left side and then unwinds to the left side. An automatic paper splicing device 54 is disposed between the two transport carts 30 and 30.

  The automatic paper splicing device 54 includes a pair of opposed cutting couplers 55 and 55 so as to be able to be pressed and separated. Between the pair of cut couplers 55, 55, there is a conveyance path for the polarizing film sheet F drawn from the left roll R1 and a conveyance path for the polarizing film sheet F drawn from the right roll R1 waiting. Is set.

  Here, in the part facing the cutting couplers 55, 55, the polarizing film sheet F drawn from the left and right rolls R1 is both unwound upward. Further, the left cut coupler 55 corresponding to the left roll R1 is disposed at a position leftward from the polarizing film sheet F of the left roll R1, and the right cut coupler 55 corresponding to the right roll R1 is On the right side of the polarizing film sheet F of the right roll R1, the terminal of the polarizing film sheet F is held in the state of being adsorbed by the lower half.

  When the polarizing film sheet F of the left roll R1 becomes a little remaining, the cutting connector 55 on the left side adsorbs the polarizing film sheet F and then secures a paper joint, and then cuts at a substantially central portion. Hold the terminal in the upper half. When the left cutting coupler 55 and the right cutting coupler 55 are pressed against each other in this state, the terminal of the polarizing film sheet F facing upward held by the right cutting coupler 55 and the left cutting The terminal of the polarizing film sheet F facing downward held by the coupler 55 is superposed and paper splicing is performed. In addition, the single-sided bonding panel P11 is conveyed on the roller conveyor 5 in FIG.

Next, the operation of the first embodiment will be described.
As for liquid crystal panel P conveyed to the roller conveyor 5, the bonding sheet | seat F5 is bonded by the 1st bonding apparatus 13, and becomes the single-sided bonding panel P11, and the bonding sheet | seat F5 is then bonded by the 2nd bonding apparatus 17. FIG. It will be bonded and it will become double-sided bonding panel P12. In the meantime, in 1st bonding apparatus 13 and 2nd bonding apparatus 17, a pair of roll R1, R1 unwinds polarizing film sheet F, receiving supply of new roll R1 by turns, and conveying apparatus 22 Thus, the bonding sheet F5 is supplied to the conveyor 5.
If the 1st bonding apparatus 13 shown in FIG. 8 is demonstrated to an example, when the polarizing film sheet F of the roll R1 of the left conveyance trolley 30 becomes small, paper joining will be performed by the automatic paper joining apparatus 54, and this time. The polarizing film sheet F of the right roll R1 is unwound. The transport cart 30 on the left side after the splicing is moved from the position of the roll R1 below the roller conveyor 5 to the side of the roller conveyor 5 and separated, and travels toward the roll accommodation area E (see FIG. 5). In the roll accommodation area E, a new roll R1 is set and moved again toward the roller conveyor 5.

  When the transport carriage 30 arrives on the side of the roller conveyor 5, as shown in FIG. 7, the transport carriage 30 has the base portion 32 guided by the inclined portions 42 of the pair of guide bars 41, while the base portion 32 has the side walls 34 of the guide bars. In the state close to the guide part 43 of 41, it stops again in the roll arrangement position of the left roll R1.

Next, when the transport carriage 30 stops, the air levitation device 29 is activated, and the roll support portion 33 is movable in a horizontal plane with respect to the base portion 32 of the transport carriage 30.
Then, when the pressing bodies 52 of the pair of clampers 51 of the horizontal positioning device 50 press the corners of the base plate 38 of the roll support portion 33, the roll support is in a state where it can be freely moved in the horizontal plane by the air levitation device 29. Since the portion 33 is positioned in the horizontal plane, as a result, the roll support shaft 40 that is the axis of the roll R1 is accurately positioned in the horizontal plane.

  Then, if the air supply from the air supply device 35 of the air levitation device 29 is stopped in the positioned state, the air levitation ball unit 36 of the air levitation device 29 that has been levitated is lowered. The lower surface is in contact with the upper surface 37 of the base plate 38 of the base portion 32, and the roll support portion 33 is positioned and fixed in position via a fixing device (not shown). In this state, there is a slight difference in the dimension in the height direction from that at the time of positioning. However, if the margin for paper splicing is secured in consideration of the amount at the time of paper splicing, there will be no hindrance to the paper splicing.

  When the positioning is completed, the end of the polarizing film sheet F unwound from the left roll R1 is sucked and held by the lower half of the left cutting coupler 55 of the automatic paper splicing device 54, and the polarizing film of the right roll R1 is held. It waits until the timing of sheet F splicing.

  According to the above-described embodiment, the roll R1 can be disposed below the roller conveyor 5 simply by moving the transport carriage 30 on which the roll R1 is set below the roller conveyor 5, so that the roll R1 is disposed on the side of the roller conveyor 5. It is no longer necessary to arrange rails for carrying in, and the arrangement space for the roller conveyor 5 can be reduced accordingly. Therefore, the installation space for the entire apparatus including the roller conveyor 5 is reduced, and the cost can be reduced. Further, since the rail does not protrude to the side of the roller conveyor 5 as in the prior art, there are no obstacles in the area on the side of the roller conveyor 5, and the work around the apparatus can be easily performed.

  The roll R1 set on the transport carriage 30 can change its posture with respect to the base portion 32 in a horizontal plane with respect to the base portion 32, and the roll support portion 33 is moved by the air levitation device 29 and the horizontal positioning device 50. Since the roll support shaft 40 of the roll R1 can be positioned in an appropriate position by positioning with respect to the roller conveyor 5, the unwinding direction of the roll R1 can be accurately adjusted and the roll splicing operation of the roll R1 can be performed without any trouble. .

Further, when air is supplied by the air levitation device 29, the position of the roll support portion 33 is freely adjusted in the horizontal plane with respect to the base portion 32 of the transport carriage 30, and the roll support shaft 40 of the roll R <b> 1 by the horizontal direction positioning device 50. Can be positioned with respect to the roller conveyor 5 in a horizontal plane, and when positioning is completed, the air supply device 35 is stopped and the supply of air is stopped, so that the roll support portion 33 is grounded with respect to the base portion 32. Therefore, the polarizing film sheet F can be unwound by the roll R <b> 1 in a state where the transport carriage 30 is disposed below the roller conveyor 5 as it is.
Since the roll support shaft 40 of the roll R1 can be positioned in the horizontal plane with a simple operation of simply sandwiching the corner portion of the outer wall of the roll support portion 33 with the pair of clampers 51, the positioning time can be shortened.

In addition, this invention is not restricted to the said embodiment, For example, although the case where a polarizing film was bonded to a liquid crystal panel was demonstrated, as a member to which a film material is affixed, it is not restricted to a liquid crystal panel, An organic electroluminescent panel The film material to be bonded is not limited to a polarizing film, and can also be applied to an antireflection film, a light diffusion film, and the like.
Further, instead of the guide bar 41, a roller guide supported so as to be rotatable with the axial direction up and down may be provided.

  Further, the air supply device 35 may be supplied to the base portion 32 of the transport carriage 30 by a hose from an air supply source in the factory. In this case, it is only necessary to secure a connection state by piping and wiring using a cable bear (registered trademark) for pushing and pulling the roll R1 below the roller conveyor 5 of the transport cart 30 to the drawing position. . And if the roll support part 33 can position with respect to the base part 32 of the conveyance trolley 30 in a horizontal plane and can be positioned, various modes can be adopted instead of the air levitation device 29 and the horizontal direction positioning device 50.

Furthermore, in this embodiment, the transport cart 30 is used as an example in which the base portion 32 and the roll support portion 33 are not completely separated. However, when the transport cart 30 arrives below the roller conveyor 5, the roll support portion is used. In a state where 33 is positioned and fixed, it may be left fixed on the roller conveyor 5 as it is, and the base portion 32 of the transport carriage 30 may be returned.
In the embodiment, the roll R1 is on standby for paper splicing, but a single roll type is also applicable. Further, the splicing may be performed manually without using the automatic splicing device 54.

P Liquid crystal panel (optical member)
5 Roller conveyor (conveyor)
F Polarized film sheet (film material)
F5 bonding sheet (film material)
R1 roll 22 conveying device 23 nipping roll (bonding part)
30 Conveying cart E Roll accommodation area (accommodation area)
31 wheels (travel equipment)
32 Base part 33 Roll support part 40 Roll spindle (axis)
29 Air levitation device (position adjustment device)
50 Horizontal positioning device (Position adjustment device)
51 Clamper (actuator)

Claims (3)

A transport conveyor on which optical members to be bonded are transported;
A transport device for unwinding and transporting the film material from a roll wound with a film material to be bonded to the optical member;
A bonding part for bonding the film material conveyed by the conveying device to the surface of the optical member sent from the conveying conveyor;
A transport carriage that supports the roll,
The transport carriage is provided so as to be movable between a storage area of the roll and a roll arrangement position below the transport conveyor,
The transport carriage includes a base portion including a traveling device and a roll support portion that supports the roll on the base portion,
The roll support part is supported in a horizontal plane so that the posture can be changed with respect to the base part,
Between the transport carriage and the transport conveyor, a position adjusting device is provided for positioning the roll support portion with respect to the transport conveyor and adjusting the orientation of the axis of the roll to an appropriate position ,
The position adjustment device holds the roll support portion in an air floating state with respect to the base portion of the transport carriage, and holds the peripheral wall of the roll support portion from the outside, and the axis of the roll is a horizontal plane. A film material laminating device comprising a horizontal direction positioning device for positioning with respect to the conveyor . An outer wall of the roll support portion is formed in a rectangular shape in plan view, and the horizontal positioning device sandwiches a corner portion of the outer wall of the roll support portion from a diagonal line with a pair of actuators so that the axis of the roll is in a horizontal plane. The film material bonding apparatus according to claim 1 , wherein the film material bonding apparatus is positioned by. The film material pasting according to claim 1 or 2 , wherein said conveyance cart makes it possible to unwind said film material under said conveyance conveyor in the state where said roll is supported by said roll support part. Combined device.

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