WO2011016577A1

WO2011016577A1 - Laminating device and conveyor sheet cleaning method

Info

Publication number: WO2011016577A1
Application number: PCT/JP2010/063448
Authority: WO
Inventors: 活之榊原; 真規中村
Original assignee: 日清紡メカトロニクス株式会社
Priority date: 2009-08-05
Filing date: 2010-08-03
Publication date: 2011-02-10
Also published as: TW201127722A; JP2011032082A; CN102656106A

Abstract

Considering various problems caused by a filler lying off a workpiece and adhering to a conveyor sheet in the conventional lamination of a solar cell etc., provided is a conveyor sheet cleaning mechanism which is capable of efficiently and effectively removing the filler having adhered to the conveyor sheet. A laminating device provided with an upper chamber (113), the inside of which is partitioned with a diaphragm (112), and a lower chamber (121) and comprising the conveyor sheet (130) for conveying the workpiece (10) is provided with: a belt-like brush (43) which can be pressed to the portion of the conveyor sheet, the portion where the conveyor sheet is brought into contact with the roller on the discharging side; and a brush roll (26) which is provided so as to come into contact with the conveying surface of the conveyor sheet and which is driven by a rotary actuator.

Description

Laminating apparatus and conveying sheet cleaning method

The present invention relates to a laminating apparatus for laminating solar cells and the like, and a laminating apparatus provided with a conveying sheet cleaning mechanism and a conveying sheet cleaning method. More specifically, in the laminating process, by improving the ability to remove the filler adhering to the conveying sheet, the adhering material adhering to the conveying sheet is prevented from being transferred to the surface of the workpiece, and the laminating process The present invention relates to a laminating apparatus having a transport sheet cleaning mechanism that enables a reduction in the surface cleaning work of a workpiece later, and a transport sheet cleaning method.

Laminating apparatuses for laminating constituent members such as solar cells are known, for example, as described in publications such as Patent Document 1, Patent Document 2, and Patent Document 3, but in this type of laminating apparatus, A conveyance sheet is used for conveying a workpiece to a processing position for laminating and carrying out the workpiece after the processing.
An example of a known laminating apparatus will be described with reference to FIG. 9, FIG. 10, and FIG. Lamination is performed in the laminating unit 101. The laminate unit 101 is configured as follows. A lower case 120 and an upper case 110 that are vertically divided so as to be opened and closed are provided, and the inside of the closed container is partitioned by a diaphragm 112 made of rubber or the like, and is divided into an upper chamber 113 and a lower chamber 121. The upper case 110 is configured to open and close with respect to the lower case 120, and the diaphragm 112 is attached to the inner side of the upper case 110.
Inside the lower case 120, a hot plate 122 with a built-in heater is provided, which is formed so that the workpiece 10 (for example, the solar cell 10) to be laminated can be heated. . Reference numeral 115 denotes a sealing material provided on the opening / closing dividing surface of the lower case 120 and the upper case 110, and

reference numerals

114 and 123 denote supply / exhaust holes for supplying and discharging air into the upper chamber 113 and the lower chamber 121.
The laminating apparatus carries the workpiece 10 onto the hot plate 122 by the transport sheet 130 with the upper case 110 opened. The configuration of the workpiece 10 thus carried in will be described with reference to an example of a general crystal solar cell module shown in FIG. The lowermost layer of the workpiece 10 is a glass plate 11, a sheet-like filler 13 is arranged on the glass plate 11, and solar cells 18 connected by lead wires 19 are arranged on the glass plate 11. The sheet-like filler 14 is disposed on the cell 18 and the sheet-like back material 12 is placed on the uppermost portion, and is carried into the laminating apparatus.
After the workpiece 10 is carried into the laminating unit 101 (see FIG. 9) in the laminating apparatus 500 of FIG. 11, the upper case 110 is closed and the upper chamber 113 and the lower chamber 121 are evacuated as shown in FIG. Then, the gas is extracted from the workpiece 10. The evacuation is performed so that bubbles do not remain inside the stacked workpieces 10. This is because, in a solar cell in which bubbles remain, when the temperature rises due to exposure to sunlight, the remaining bubbles expand and deterioration is accelerated.
The workpiece 10 in the laminated part that has been evacuated is heated by a hot plate 122. The heater of the hot plate 122 is controlled to a set temperature, and the workpiece 10 becomes substantially the same as the heater temperature after a proper time has elapsed, and the fillers 13 and 14 are melted.
When the sheet-like fillers 13 and 14 are melted, if the atmosphere is introduced only into the upper chamber 113 that has been previously evacuated, the diaphragm 112 swells toward the hot plate 122, so that the workpiece can be processed by the diaphragm 112. 10 is pressed against the hot plate 122 and the layers of the modules of the solar battery cells are joined.
Thereafter, the lower chamber 121 is returned to atmospheric pressure, the upper case 110 is opened, the workpiece 10 is unloaded by the conveying sheet 130, and the laminating process is completed.
In the solar cell 10, for example, EVA (ethylene vinyl acetate) is used as the fillers 13 and 14, and a transport sheet 130 is used to transport the workpiece 10 to the laminating apparatus.
The fillers 13 and 14 are formed in a sheet shape, and the size thereof is larger than the size of the glass plate 11 by several mm. This is for securing the sealing performance at the end face of the solar cell module to be laminated, but there is a problem that the fillers 13 and 14 protruding from the glass plate 11 adhere to the conveyance sheet 130. Derive.
Conventionally, a glass cloth sheet material impregnated with a fluororesin is used for the conveyance sheet 130 as a sheet material having good releasability in order to cope with the problem of the fillers 13 and 14 adhering to the conveyance sheet 130.
However, even if it is the conveyance sheet | seat 130 using the sheet | seat material with favorable peelability, adhesion of the above-mentioned protruding fillers 13 and 14 is inevitable. Therefore, in order to remove the fillers 13 and 14 adhering to the conveying sheet 130, the filling adhering to the sheet 130 by applying a brush roll driven by a rotary actuator such as an electric motor outside the chamber of the laminating apparatus. A conveying sheet cleaning device having a structure for scraping and removing the materials 13 and 14 has been proposed by the above-mentioned Patent Document 2.
FIG. 11 is an explanatory diagram of a laminating apparatus provided with a brush roll 26 for removing the

protruding fillers

13a and 14a attached to the conveying sheet 130. FIG.
The conveyance sheet 130 is formed in an endless belt shape with one sheet connection part 131 (but may be a plurality of places) in the middle, covers the upper surface of the lower case 120, and circulates under the lower case 120. Thus, the upper surface of the sheet 130 is arranged so as to travel to the left in FIG. 11 supported by four rollers R1 to R4 including driving rollers arranged at four places surrounding the lower case 120. .
The conveyance sheet 130 is a sheet for laminating that is run on the lower case 120 when the upper case 110 is open. The front and rear of the sheet 130 are the solar cell modules 10 ( An upstream carry-in conveyor 200 for delivering the workpiece to the sheet 130 and a downstream carry-out conveyor 300 for delivering the laminated solar cell module 10 (workpiece) from the sheet 130 are provided adjacent to each other.
In the example of FIG. 11, the brush roll 26 is arranged so as to contact the outer surface (conveying surface) of the sheet 130 at the even portion wound around the third roller R3 in the example of FIG. Here, there is provided a sheet cleaning mechanism that scrapes off the

fillers

13a and 14a adhering to the outer surface of the sheet 130 by the counterclockwise rotation of the brush roll 26 here. In FIG. 11, 26a is a support arm that supports the

brush roll

26, 26b is an adjuster for adjusting the inclination of the support arm 26a to adjust the contact force of the brush roll 26 to the

conveying sheet

130, and 26c is the brush. The rotary actuator is a motor or the like that applies rotation to the roll 26. F1 is a frame of the laminating apparatus, and F2 is a frame provided with a support arm 26a, a brush roll 26, and the like.
In the conventional cleaning mechanism for the conveyance sheet 130 illustrated in FIG. 11, the

protruding fillers

13a and 14a adhering to the conveyance surface (outer surface) of the sheet 130 are delivered to the subsequent carry-out conveyor 300 after the lamination process is completed. Although not cooled yet, it is in a soft state, but since the conveying sheet 130 is cooled and solidified while traveling to the vicinity of the third roller R3, the brush is scraped off from the opposite direction to the traveling direction of the sheet 130. As the roll 26 rotates, most of it is scraped off and removed. However, it is not completely removed, and there may be a thing that remains on the conveyance surface of the conveyance sheet 130, or a thing that is scraped off and scattered may adhere to the conveyance sheet 130 again, which is a cause of an inconvenient situation. It has become.
That is, although a sheet material with good releasability is used as the material of the conveyance sheet 130, it was adhered by simply applying the brush roll 26 to the surface of the sheet 130 and scraping the

adhering fillers

13a and 14a. It is difficult to completely remove the

fillers

13a and 14a, and the

fillers

13a and 14a scraped off by the brush roll 26 are scattered by the rotation of the brush roll 26 and are again transferred to the transport sheet 130. It may adhere.
In particular, for example, if the next work piece 10 is carried into the laminating apparatus by the sheet 130 while the adhering

fillers

13a and 14a having a diameter of only about 1 mm remain attached to the conveying sheet 130, the work piece 10 Since the adhering

fillers

13a and 14a are transferred and adhered to the lower surface (glass plate 1) of the glass plate, if they are laminated as they are, they are pressed by the diaphragm 112, so even those having a diameter of about 1 mm are thinly stretched. After laminating, there is a problem in that it extends to a spot shape up to about 5 mm in diameter and the appearance is impaired.
Since the

adhesion fillers

13a and 14a transferred to the workpiece 10 in this way have strong adhesion, it is necessary to use an organic solvent or the like for the removal and to be manually rubbed with a brush or the like. It took a lot of work time, resulting in a decrease in productivity, resulting in a cost increase.
As a measure for improving the removal capacity of the adhering filler as described above, a means for rotating the brush roll at a high speed with a large-capacity electric motor can be considered, but if such a method is adopted, the conveyance sheet 130 itself is easily damaged, There is a problem that the life of the conveyance sheet 130 is shortened, and this leads to an increase in cost.
In addition, the

fillers

13a and 14a adhering to the conveying sheet 130 may be transferred to the diaphragm 112 in the laminating apparatus. When such transfer is performed, the flexibility of the portion of the diaphragm 112 is impaired. There was also a problem that the life of the diaphragm 112 was shortened.
In Patent Document 4, the laminating apparatus shown in FIG. 12 is supported by a frame F1 positioned below the conveying sheet 130 between the second and third rollers R2 and R3 so as to be in contact with the conveying sheet 130. The scraper 21 is provided, and the brush roll 26 driven by the rotary actuator 26c shown in FIG. 11 is provided. The roll 26 is configured to come into contact with a portion of the transport sheet 130 that contacts the third roller R3. A cleaning mechanism is disclosed.
The scraper used in such a cleaning mechanism is disposed so as to be in contact between the second and third rollers R2 and R3 of the conveying sheet, and the filler adhering to the conveying sheet is lifted from the conveying sheet surface. It was sometimes insufficient to adjust the scraper ascending position. Further, if a back plate for backup is provided on the back side of the conveying sheet so as to be paired with the scraper at the raised position of the scraper, the scraper is strongly pressed against the conveying sheet and the conveying sheet is damaged. Further, when a single sheet or a plurality of sheets are used as the conveyance sheet, the conveyance sheet has a connection portion 131. The connecting portion is a metal rod-like member having a substantially rectangular cross section, and must be retracted downward when the transport sheet passes through the scraper 21.
JP-A-9-141743 JP-A-11-204811 Utility Model Registration No. 3037201 JP 2004-238196 A

In view of various problems caused by the protruding filler of the workpiece that adheres to the conveying sheet in the above-described conventional laminating process of the solar cell or the like, the present invention efficiently and efficiently uses the filler adhering to the conveying sheet. To provide a laminating apparatus equipped with a transport sheet cleaning mechanism that can be effectively removed, and to provide a cleaning method for a transport sheet that can efficiently and effectively remove the filler adhering to the transport sheet. The issue is to provide.

The laminating apparatus of the present invention, which has been made for the purpose of solving the above-mentioned problems, has conveying rollers on the carry-in side and the carry-out side for carrying work pieces such as solar cell modules to be laminated, An upper chamber in which a conveying sheet for conveying an object while being placed is wound around the roller, and the roller is driven to move the conveying sheet so that the workpiece is partitioned by a diaphragm; A laminating apparatus for carrying out laminating after loading into a laminating part having a lower chamber and carrying out a work piece from the laminating part, and having a belt-like brush that can be pressed against a part of the carrying sheet that comes into contact with the carrying-out roller. A brush roll provided in contact with the conveyance surface of the conveyance sheet and driven by a rotary actuator; It is characterized by.
The laminating apparatus of the above aspect may be configured such that the belt-like brush is provided so as to be able to be pressed against a portion that comes into contact with the carry-out side roller that is first brought into contact with the conveying sheet fed from the laminating unit.
The laminating apparatus according to the above aspect may be configured to have a removal means for the filler adhering to the brush surface on the belt-like brush.
Further, the cleaning method of the transport sheet of the present invention, which has been made for the purpose of solving the above-mentioned problems, is a transport roller on the carry-in side and the carry-out side for transporting a workpiece such as a solar cell module to be laminated. A conveying sheet for conveying the workpiece while it is placed thereon is wound around the roller, and by driving the roller, the conveying sheet is moved to move the workpiece inside the diaphragm. A method of cleaning the transport sheet in a laminating apparatus for laminating and then laminating into a laminating section having an upper chamber and a lower chamber that are partitioned by each other, and unloading the transport sheet in the laminating apparatus The end of the filler adhering to the conveying sheet is erected by a belt-like brush that can be pressed against the portion that contacts It is characterized by comprising a step A and a step B in which a brush roll provided so as to be in contact with the conveying surface of the conveying sheet and driven by a rotary actuator is pressed against the conveying sheet with the filler adhered thereto and the filler is removed. .
In the transport sheet cleaning method according to the above aspect, the step A is a method in which the belt-like brush can be pressed against a portion that comes into contact with the carry-out side roller with which the transport sheet sent out from the laminating unit first comes into contact. You can also.
The conveyance sheet cleaning method in the above-described form may be a method including the step C of removing the filler adhering to the brush surface of the belt-like brush.

The present invention is as described above, and includes an upper chamber and a lower chamber that are partitioned by a diaphragm, and has a conveying sheet that conveys a workpiece. A cleaning mechanism is configured by providing a belt-like brush that can be pressed to a portion and a brush roll driven by a rotary actuator. As a result, it is possible to remove the filler adhering to the conveyance sheet almost completely even to a minute one, and by adding a configuration that improves the removal capability, the adhering filler is transferred to the surface of the workpiece. Since this can be effectively prevented, the work of cleaning the surface of the workpiece after laminating can be greatly reduced.
Further, in the present invention, the ability to remove the filler adhering to the conveying sheet of the laminating apparatus can be greatly improved, so that the filler can be prevented from being transferred to the diaphragm, and the life of the diaphragm can be extended.
Unlike the scraper used in the prior art, when the carrier attached to the conveying sheet is erected, the conveying sheet with the filler adhered is pressed against the roller on the carry-out side with a belt-like brush. The filler adhering to the conveying sheet can be erected completely, the conveying sheet is not damaged at all, and the life of the conveying sheet can be extended.
Even if the transport sheet is a single sheet or a plurality of sheets, the transport sheet has the connecting portion 131. Since the sheet connecting portion is a metal rod-like member having a substantially rectangular cross section, the scraper used in the prior art must be retracted when the sheet connecting portion passes through the scraper 21. In the present invention, it is a belt-like brush, and such a retracting operation is unnecessary, and the operation of the apparatus when laminating the solar cell is simplified.
By using a configuration in which the belt-like brush is provided so as to be able to be pressed against a part that contacts the carry-out roller that the transport sheet sent out from the laminating part first contacts, the filler used for the solar cell as a workpiece is early. In the case of the type of filler that is solidified into the end, the end of the filler adhering to the transport sheet can be reliably erected.
By providing the strip-shaped brush with means for removing the filler adhering to the brush surface, cleaning and cleaning of the strip-shaped brush can be automatically performed, so the period until the strip-shaped brush is replaced can be set longer and the laminating process can be performed. Production efficiency can be improved.
The effect of the present invention is as described above. However, there is also an effect that the laminating process can be automated to realize unmanned operation.

FIG. 1 is a front view of a laminating apparatus provided with the cleaning mechanism of the present invention.
FIG. 2 is a side view of the laminating apparatus equipped with the cleaning mechanism of the present invention (viewed from the carry-out side).
FIG. 3 is a view showing a lowered state of the cleaning mechanism by the belt-like brush of the present invention.
FIG. 4 is a diagram showing the lifted state of the cleaning mechanism by the belt-like brush of the present invention.
FIG. 5 is an explanatory diagram of a state in which the filler adhering to the conveying sheet is erected using the cleaning mechanism by the belt-like brush of the present invention. FIG. 6 is an explanatory diagram of another example of the cleaning mechanism by the belt-like brush of the present invention.
FIG. 7 is an explanatory view of a means for removing the filler adhering to the belt-like brush in the cleaning mechanism using the belt-like brush of the present invention.
FIG. 8 is a cross-sectional view illustrating a configuration of a solar cell (workpiece).
FIG. 9 is an explanatory diagram of a known laminating apparatus.
FIG. 10 is an explanatory diagram of a known laminating apparatus.
FIG. 11 is an explanatory diagram of a laminating apparatus having a conventional sheet cleaning mechanism.
FIG. 12 is an explanatory diagram of another example of a laminating apparatus having a conventional sheet cleaning mechanism.
FIG. 13 is an explanatory view of a belt-like brush with improved ability to stand up the filler adhering to the transport sheet.

10 Workpiece (solar cell)
DESCRIPTION OF SYMBOLS 13 Sheet-like filler 14 Sheet-like filler 13a Adhered filler 14a Adhered filler 21 Scraper 26 Brush roll 30 Support frame 40 Cleaning part by strip-shaped brush 41 Bracket 42 Brush fixing member 43 Strip brush 44 Strip brush 50 Lifting section of cleaning unit 51 Cylinder 52 Rod 53 Guide bar 54 End plate 60 Filler adhering to conveyance sheet 61 Standing portion of filler adhering to conveyance sheet 70 Removing means for filler adhering to belt-like brush 100 Laminating apparatus 101 Laminating section 110 Upper case 120 Lower case 130 Conveying sheet 131 Sheet connecting section 200 Carrying in conveyor 300 Carrying out conveyor 500 Laminating apparatus 00 laminating apparatus

Next, an embodiment of the present invention will be described mainly with reference to FIGS. 1 and 2, the same members and parts as those in FIGS. 11 and 12 are denoted by the same reference numerals.
As shown in FIGS. 1 and 2, the conveyance sheet 130 is wound around four rollers R1 to R4. Sprockets 401 are attached to both ends of each roller, and a chain 402 is wound on both sides of each roller. By driving the chain 402 with an electric motor or the like, the transport sheet travels along each roller. . Further, the end of the transport sheet is connected by a sheet connecting portion 131. In this embodiment, there is one conveyance sheet and one connection portion 131. However, when a plurality of conveyance sheets are used, the connection portion is also plural.
In the present invention, in the laminating apparatus as illustrated in FIG. 11, the support positioned below the conveyance sheet 130 so as to contact the conveyance sheet 130 (here, the portion where the conveyance sheet 130 contacts the second roller R 2). A cleaning unit 40 (hereinafter referred to as a cleaning unit 40) is provided by a belt-like brush supported by the frame 30. Similarly to the case of FIGS. 11 and 12, a brush roll 26 driven by a rotary actuator 26 c is provided at a portion where the conveyance sheet 130 contacts the third roller R 3, and the roll 26 is attached to the conveyance sheet 130. It is in contact with the transport surface.
In the case of a laminating apparatus that conveys the workpiece 10 by the conveying sheet 130, the conveying sheet 130 conveys the workpiece 10 into the laminating apparatus, and then performs the laminating process by closing the upper case 110 having the upper chamber 113. After the processing, the upper case 110 is opened, and the next workpiece 10 is carried in at the same time while carrying out the workpiece 10 already processed. The cleaning unit 40 using the belt-like brush is provided at a location close to the carry-out side of the transport sheet 130, here, at a position directly below the roller R2, and the brush roll 26 is provided at a location close to the carry-in side of the next workpiece 10. Then, it is provided in the vicinity of the roller R3. This is effective in removing the adhering

fillers

13a and 14a from the transport sheet.
The configuration of the cleaning unit 40 will be described with reference to FIGS. A cleaning unit 40 and an elevating unit 50 (hereinafter referred to as an elevating unit 50) of the cleaning unit 40 are disposed on a support frame 30 provided at a lower side surface on the carry-out side of the frame F1 of the laminating apparatus. The elevating unit 50 includes an elevating cylinder 51, a cylinder rod 52, a guide bar 53, and an end plate 54. In this embodiment, as shown in FIG. 2, two cylinders 51 with a guide bar are arranged on the support frame. Two end plates 54 are provided with a cleaning unit 40. The cleaning unit 40 is provided with a bracket 41 on an end plate, a belt-like brush fixing member 42 on a side surface thereof, and a belt-like brush 43 attached to the fixing member. As shown in FIG. 2, the belt-like brush is slightly wider than the width dimension of the transport sheet. Accordingly, the lengths of the bracket and the belt-like brush are also slightly longer than the length of the transport sheet. In addition, the raising / lowering part 50 is not limited to such a form, An actuator, such as a cylinder, and a guide bar can also be arranged separately.
Next, the operation of the cleaning unit 40 will be described with reference to FIGS. The cleaning unit 40 is normally in a lowered state as shown in FIG. When the workpiece 10 is carried into the laminating unit 101 and the laminating process is started, the workpiece 10 is raised as shown in FIG. As a result, the belt-like brush 43 is pressed against the portion of the transport sheet 130 that is in contact with the second roller R2. The rising position of the belt-like brush is not shown, but is provided by providing a stopper or the like and adjusting the rising end of the cylinder 51. The cleaning unit 40 does not need to be lowered once it is raised. Even when the conveying sheet connecting portion 131 as shown in FIG. 2 passes the second roller R2 in a state where the belt-like brush is raised along with the traveling movement of the conveying sheet, it can be passed through without being lowered because it is a brush. is there. As will be described later, when cleaning the filler adhering to the belt-like brush, the cleaning unit 40 is lowered by the elevating unit 50.
The operation and effect of the cleaning unit 40 will be described with reference to FIG. The

fillers

13a and 14a adhering to the conveying sheet 130 by the laminating process pass through the first roller R1 and reach the second roller R2 while conveying the workpiece 10 in the laminating section simultaneously with the traveling movement of the conveying sheet. To do. The filler adhering to the transport sheet reaches the belt-like brush 43 pressing the roller R2. At this time, since the

fillers

13a and 14a are still high temperature without being allowed to cool, they are in a flexible state. Therefore, if the

fillers

13a and 14a are rubbed (scraped) by the belt-like brushes in this state, they are easily deformed, and the conveying sheet 130 Lift from the transport surface. As shown in the figure, an upright portion 61 is generated at the tip of the adhering filler 60. Among the

fillers

13 a and 14 a adhering to the transport sheet 130, those having relatively weak adhesive force may be peeled off by the belt-like brush 43.
In this state, since the next workpiece 10 is carried into the laminating apparatus at the same time, when the workpiece 10 is carried into the laminating apparatus, the next laminating process is executed. Since the laminating process usually requires about a dozen minutes, the traveling of the conveying sheet 130 is stopped during this process, and the adhering filler 60 in a state of being rubbed and raised by the belt-like brush 43 is in the meantime. It solidifies almost completely upon cooling.
In this way, the filler 60 having the state 61 with the leading end standing on the conveyance sheet surface and solidified and adhered thereto is applied with the brush roll 26 in the next traveling of the conveyance sheet 130. The adhering filler that has solidified and has the standing portion 61 is easily caught by the brush hair, and the removal efficiency of the adhering filler 60 is improved.
In the present invention, the belt-like brushes 43 are one set (one place) in the example shown in FIGS. 1 and 2, but may be provided in two places as a plurality (two or more) without being particular about one set. As shown in FIG. 6, the belt-like brush 43 may be pressed against the first roller R 1 by shifting the vertical positions of the first roller R 1 and the second roller R 2. In the case where the belt-like brush 43 is pressed against the second roller R2 as shown in FIG. 5, the belt-like brush 43 is moved up and down vertically from the roller R2, but in the first roller R1, the belt-like brush is advanced and retracted obliquely from below. The configuration is to let When a plurality of belt-like brushes 43 are provided in this manner, the adhering filler 60 rubbed by the first belt-like brush 43 can be scraped off by the second strip-like brush 43, although not completely. By adopting such a configuration, it becomes possible to almost completely drop the adhering

fillers

13a and 14a remaining on the belt surface with the next brush roll 26, and provide a cleaning mechanism with higher removal capability. Is possible.
In the case of using a filler of a type in which the filler used for the solar cell as the workpiece 10 is solidified at an early stage, a mode in which the belt-like brush is pressed against the first roller R1 shown in FIG. 6 is desirable. Since the filler solidifies at an early stage, the filler adhering to the conveying sheet needs to be raised from the conveying surface of the conveying sheet 130 by the band-shaped brush while the filler is in a flexible state, and the band-shaped brush is pressed against the first roller R1. Let
When the

fillers

13a and 14a attached to the conveyance sheet are erected by the belt-like brush, the filler also adheres to the belt-like brush. If this state is left as it is, the effect of raising the filler adhering to the conveyance sheet becomes insufficient, or the filler adhering to the belt-like brush adheres to the conveyance sheet again. In order to solve such a problem, it is possible to provide means for removing the filler adhering to the belt-like brush.
The removal means will be described with reference to FIG. The removing means 70 is operated in a state where the cleaning unit 40 using the belt-like brush is lowered by the elevating unit 50. The removing unit 70 is disposed on the support frame 30 that supports the cleaning unit 40. The removing means 70 includes a stand 71, a base 72, a pressing unit 73, a rotating brush pressing cylinder 74, a longitudinal movement unit 75, an electric motor 76 for moving the pressing unit, and a rotating brush 77. Yes. Further, a pair of removing means 70 is provided on each side of the belt-like brush 43 of the cleaning unit 40.
The removing unit 70 operates as follows. The rotating brushes 77 arranged on both sides of the belt-like brush are rotated while the pressing unit 73 is advanced by the cylinder 74 to be pushed against the belt-like brush 43 and travel along the moving unit 75 in the longitudinal direction of the belt-like brush. The moving unit 75 is configured by a slide rail, a ball screw, and the like. The pressing unit 73 is driven to travel in the longitudinal direction of the belt-like brush by rotating the electric motor 76. At this time, the filler adhering to the belt-like brush 43 is removed and not only falls off but also rises as the rotating brush 77 rotates. The scattered filler adheres to the transport sheet again. In order to prevent such re-adhesion, a duct 24 connected to a dust collector, which will be described later, can be provided in the moving part of the rotating brush to suck the removed filler.
In order to further improve the effect of raising the filler adhering to the conveyance sheet by the belt-like brush in the present invention, the belt-like brush having the cross-sectional shape as shown in FIG. You can also. FIG. 13A shows a belt-like brush 43 that is normally used for raising the filler adhering to the conveyance sheet of the present invention, and the hair of the brush has a straight shape. On the other hand, in the band-shaped brush 44 shown in FIG. 13B, the hair has a wave shape. As a result, the width (direction perpendicular to the length direction) of the top of the brush is La in FIG. 13A, but is Lb in FIG. 13B, and the width is wide. By using the brush as shown in FIG. 13B, the contact width between the conveyance sheet and the belt-like brush is widened, and it is easy to press against the conveyance sheet in the portion in contact with the roller, so that the standing ability is improved.
In the present invention, as shown in FIG. 1, the laminating apparatus can employ a configuration in which the adhesive roller 23 is provided on the conveyance sheet 130 so as to be in contact with the conveyance surface. Even in this case, the brush roll 26 driven by the rotary actuator 26c is provided outside the laminating unit 101, and is brought into contact with the conveyance surface of the conveyance sheet 130 to clean the surface in the same manner as in the above example. is there.
For example, the adhesive roller 23 may be one in which an adhesive rubber is wound around the outer surface of a metal roller or the like, or a long adhesive sheet is wound around the roller. In the illustrated example, the adhesive roller 23 is provided above the brush roll 26 by extending the support arm 26a upward. However, the adhesive roller 23 may be provided so as not to use the support arm 26a. Further, the roller 23 includes an advancing / retracting type adjuster mechanism 23 a for adjusting the contact pressure with respect to the conveying sheet 130. Here, it is more effective to provide the adhesive roller 23 after the brush roll 26. This is because when the adhesive roller 23 is applied to the adhering

fillers

13a and 14a prior to the brush roll 26, a large amount of the adhering

fillers

13a and 14a are transferred to the adhering roller 23, and the deterioration of the adhesive force of the roller 23 is accelerated. Because it will end up.
In addition, after the brush roll 26 is applied first to remove the relatively large adhering

fillers

13a and 14a, the

fine adhering fillers

13a and 14a that could not be dropped by the brush roll 26 are removed by the adhesive roller 23. The removal effect increases more.
The adhesive roller 23 is not limited to a set, and a plurality of adhesive rollers 23 may be provided although not shown. By providing a plurality of systems, the removal capability can be further improved. Furthermore, such an adhesive roller can be used for removing the filler adhering to the belt-like brush shown in FIG.
Furthermore, in the present invention, it is possible to adopt a configuration in which a duct 24 is provided in the vicinity of the belt-like brush 43 and the brush roll 26 and a dust collector (not shown) is connected to the duct 24. When the adhering

fillers

13a and 14a are scraped off by the belt-shaped brush or the brush roll 26, the dropped filler may adhere to the transport sheet 130 again. In the present invention, in order to avoid this, the duct 24 is provided and the filler scattered by the dust collector is sucked to prevent the

fillers

13a and 14a from being sucked into the dust collector and reattached to the transport sheet 130.
In the above, although not shown, by providing a back-up plate material as a backup member that supports the pressing force of the roller 23 at a position opposite to the adhesive roller 23 on the back side of the conveyance sheet 130, the adhesive roller 23 is more It becomes possible to strongly press against the conveyance sheet 130, and the ability to remove the adhering filler can be further improved.

Claims

In order to convey a workpiece such as a solar cell module to be laminated, a conveyance roller is provided on the carry-in side and the carry-out side, and a conveyance sheet for conveying the workpiece while being placed is wound around the roller. By driving the roller, the conveying sheet is moved and moved, and the workpiece is loaded into a laminating section having an upper chamber and a lower chamber, the interior of which is partitioned by a diaphragm, and then laminated. A laminating apparatus for carrying out from the laminating unit,
A laminate comprising a belt-like brush that can be pressed at a portion that contacts a roller on the carry-out side of the carrying sheet, and a brush roll that is provided in contact with the carrying surface of the carrying sheet and that is driven by a rotary actuator. apparatus.
2. The laminating apparatus according to claim 1, wherein the belt-like brush is provided so as to be able to be pressed against a portion that comes into contact with a carry-out side roller that first comes into contact with a conveying sheet fed from the laminating portion.
The laminating apparatus according to claim 1 or 2, wherein the strip-shaped brush has a removing means for removing the filler adhering to the brush surface.
In order to convey a workpiece such as a solar cell module to be laminated, a conveyance roller is provided on the carry-in side and the carry-out side, and a conveyance sheet for conveying the workpiece while being placed is wound around the roller. By driving the roller, the conveying sheet is moved and moved, and the workpiece is loaded into a laminating section having an upper chamber and a lower chamber, the interior of which is partitioned by a diaphragm, and then laminated. A method for cleaning the transport sheet in a laminating apparatus for unloading from the laminating unit,
A step A of raising the end of the filler adhering to the conveying sheet by a belt-like brush that can be pressed against a portion of the conveying sheet that comes into contact with the carry-out side roller; A conveying sheet cleaning method comprising: a step B of removing a filler by pressing a brush roll driven by an actuator onto the conveying sheet to which the filler is attached.
5. The conveying sheet cleaning according to claim 4, wherein in the step A, the belt-like brush can be pressed against a portion of the conveying sheet that is fed out from the laminating portion and that comes into contact with the carry-out side roller that comes into contact first. Method.
The method for cleaning a transport sheet according to claim 4 or 5, further comprising a step C of removing the filler adhering to the brush surface of the belt-like brush.