JP2006088511A - Laminator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a laminator capable of suppressing energy loss, enabling the conservation of a space and the reduction of workers required and excellent in mass productivity. <P>SOLUTION: A lamination oven 1 and a curing oven 29 are connected in series. The lamination oven 1 is equipped with an upper chamber 12, which is equipped with a diaphragm 10 and an air supply and exhaust port 11, and a lower chamber 15, which is equipped with a heating plate 13 and an air suction and exhaust port 14, in a freely openable and closable manner and also equipped with a vacuum degassing means 18. The curing oven 29 is equipped with the upper chamber 12, which separately has the diaphram 10, a suction port 30 and an exhaust port 31, and the lower chamber 15, which has the heating plate 13, in a freely openable and closable manner. A material 4 to be laminated is preheated on a feed-in conveyor 7 by a heating means 6 to be successively treated in the lamination oven 1 and the curing oven 29 and fed out by a feed-out conveyor 9 equipped with a cooling means 8 to complete lamination. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a laminating apparatus for laminating two or more thin sheets such as sheets and films, or a base material and a sheet or film. More specifically, the present invention is particularly useful for laminating solar cell panels, and has a dramatic increase in production capacity. The present invention relates to a laminating apparatus that is capable of semi-continuous manufacturing, improving energy efficiency, saving space, and reducing personnel.

  In recent years, combined with the heightened awareness of the global environment, solar cells that directly convert sunlight falling as permanent energy into electrical energy have attracted attention as a power generation system free from environmental pollution. Among various types of solar cells, amorphous silicon solar cells, polycrystalline silicon solar cells and the like are low in manufacturing cost, and are currently several hundred kW from a small household power generator of about 3 kW. Even large-scale power generators have been put into practical use.

  Such a solar cell is modularized by electrically connecting a plurality of solar cell elements by tab lead wires after the manufacturing process of the solar cell element, and its usage environment receives direct light including ultraviolet rays, It is an outdoor environment where the temperature difference between day and night is severe in addition to being exposed to dust and dust. Therefore, the modularized solar cell is a laminate sandwiched between a transparent surface coating material and a back coating material that receive sunlight through a filler such as EAV (ethylene vinyl acetate) resin. Durability and reliability are guaranteed.

  As a laminating apparatus used for such a laminating process for a solar cell panel, a laminating unit configured to freely open and close an upper chamber having a diaphragm that is expandable downward and a lower chamber having a heater panel can be opened and closed. In the laminating apparatus provided, a laminating apparatus characterized by providing a preheating heater that preheats the object to be laminated before being carried into the laminating section has been proposed (for example, see Patent Document 1).

Further, as another proposal related to lamination, a laminating step of laminating a laminate material composed of a back surface covering material, a first filler, a material to be laminated, a second filler, and a surface covering material in this order, the surface and In the vacuum lamination method in which the lamination material is laminated by performing at least a vacuuming step for reducing the pressure between the regions sandwiched by the back surface coating material and a heating step for heating the lamination material, The lamination jig is stacked on the lamination jig in the vertical direction using the stacking device after the lamination process is completed. The vacuuming process and the heating process are performed in a state where the stacks are stacked, and the stacked lamination jigs are unloaded. Utilizing and device separated into individual lamination jig, and the like continuously processing a vacuum lamination method characterized by discharging the laminate material having been subjected to bonding (e.g., refer to Patent Document 2).
JP-A-10-95089 JP-A-10-65191

  However, in the technique described in Patent Document 1, the laminate body is preheated by a preheater heater before being carried into the laminate portion, so that there is an advantage that the occurrence of warpage of the laminate body can be reduced. As a substantial configuration, heating, vacuum degassing, heat fusion, and cooling, which are the main processing steps of the laminate, have low productivity per line because of so-called batch processing in which batch processing is performed. Therefore, a lot of manpower is required, and heating and cooling are repeated for each batch, resulting in a large energy loss. Also, the occupied space of the apparatus per the same production capacity is large, and there is a great limit to cost reduction.

  Moreover, in the technique described in Patent Document 2, although it is a continuous process vacuum lamination method on the premise of mass production, the system is complicated, the number of jigs is large, and the condition setting for each sheet is performed. Therefore, the equipment cost is large, the quality variation is a concern, maintenance is also required, and it is not suitable for mass production. Furthermore, since the heat capacity of the jig used by stacking multiple stages is inevitably increased, it takes a long time to heat and cool the jig, and it is substantially a batch process. There are many energy losses associated with repeated heating and cooling of the jig, which is problematic in terms of cost, as in the case of Reference 1, and is not an environmentally friendly manufacturing method.

  In view of such circumstances, the present invention solves the above-described problems of the prior art, enables semi-continuous production, greatly suppresses energy loss, reduces the space occupied by the apparatus, and is inexpensive and mass-productive. An object of the present invention is to provide a laminating apparatus that is excellent in workforce reduction and capable of reducing the number of personnel.

  In order to achieve the above object, claim 1 of the present invention comprises an upper chamber having a diaphragm and an air supply / exhaust port, a lower chamber having a heating plate and an air intake / exhaust port, which can be opened and closed, and a vacuum deaeration means. A laminating apparatus comprising a plurality of laminating ovens connected to a series.

  According to a second aspect of the present invention, there is provided a laminate oven having a diaphragm and an air supply / exhaust port, a lower chamber having a heating plate and an intake / exhaust port, and a vacuum oven and a laminate oven, The laminating apparatus is characterized in that an upper chamber having an air supply / exhaust port and at least one curing oven having a lower chamber having a heating plate that can be opened and closed are connected in series.

  According to a third aspect of the present invention, there is provided a laminating apparatus according to the first or second aspect, wherein a heated pressurized air inlet and a heated pressurized air outlet are provided in the upper chamber of the oven.

  According to a fourth aspect of the present invention, there is provided the laminating apparatus according to any one of the first to third aspects, wherein a space portion of the upper chamber is filled with a heating medium such as a hollow plastic.

  According to a fifth aspect of the present invention, there is provided the laminating apparatus according to any one of the first to fourth aspects, wherein a heating means is provided in a carry-in conveyor for carrying a laminated body into a laminating oven.

  A sixth aspect of the present invention includes the laminating apparatus according to any one of the first to fifth aspects, wherein a transfer conveyor is interposed between the ovens.

  A seventh aspect of the present invention includes the laminating apparatus according to the sixth aspect, wherein the oven and / or the transfer conveyor is covered with a heat insulating cover.

  Claim 8 of the present invention comprises the laminating apparatus according to any one of claims 1 to 7, wherein a cooling means is provided in a carry-out conveyor for carrying out the laminate from the last row of ovens. .

  The laminating apparatus of the present invention includes an upper chamber having a diaphragm and an air supply / exhaust port, a lower chamber having a heating plate and an air intake / exhaust port, which can be opened and closed, and a plurality of laminating ovens having vacuum deaeration means. That is, by dividing the processing steps in the laminating process into two or more and connecting them with a conveyor, the energy loss accompanying heating and cooling is greatly suppressed, As the occupied space is reduced, the production tact time per process is greatly reduced, and the productivity can be dramatically improved. In addition, it is possible to reduce the number of personnel as the number of lines is reduced as compared with the conventional method.

  In addition, as a post process of the laminating oven, a high-vacuum air deaeration means is connected by connecting an upper chamber with a diaphragm and an air supply / exhaust port and a curing oven with a lower chamber with a heating panel that can be opened and closed. Therefore, the apparatus cost is greatly reduced.

  Further, when the oven is provided with a heated pressurized air inlet and a heated pressurized air outlet, and the heated and pressurized air is circulated and supplied from the inlet to the outlet, the laminate is sandwiched between the diaphragm and the heating platen. At the same time, since the object to be laminated is heated not only from the lower heating platen but also from the upper side through the diaphragm, by heating and pressurized air, laminating or curing can be performed more effectively in a short time.

  In addition, by filling the space portion of the upper chamber of the oven with a heating medium such as hollow plastic, the heating ability from above can be further enhanced through the diaphragm.

  Further, by providing heating means for preheating such as an aluminum casting heater and an infrared heater on the carry-in conveyor for carrying the laminated body into the laminating oven, warpage of the laminated body is prevented in the laminating oven.

  In addition, by installing a transfer conveyor between ovens, not only can the timing of transferring the laminate to the next oven be facilitated, but also the positioning of the laminate in the next oven is easy. In addition, since the space for cleaning and maintenance of the cleaning roll is secured, these operations are facilitated.

  Moreover, by covering the vicinity of the opening of the oven or the transfer conveyor or both with a heat insulating cover, it is possible to prevent the low temperature atmosphere from flowing into the oven, and the laminate is cooled during the transfer. Can be prevented, and energy loss can be prevented. The heat insulating cover is preferably made of a heat-resistant flexible material that can be expanded and contracted.

  Furthermore, by providing a cooling means such as a blower fan on the carry-out conveyor for carrying out the laminate from the last row laminate oven or the last row cure oven, the cycle time can be shortened and the productivity can be improved.

The first of the present invention is a series of a plurality of laminating ovens equipped with a vacuum chamber and an upper chamber provided with a diaphragm and an air supply / exhaust opening and a lower chamber provided with a heating panel and an air intake / exhaust opening. The laminating apparatus is characterized by being connected to.
Thus, for example, when two laminating ovens are connected, conventionally, it takes 7 minutes from lamination to curing (semi-cure) from a laminate to be laminated by vacuum degassing with one laminating oven and heating. The operation from lamination to curing (semi-cure) is divided into two, and the first half operation is performed in the first oven and the second half operation is performed in the second oven. As a result, the production capacity can be doubled. When the above cure is semi-cure, after cure is performed according to a conventional method.

In addition, in the conventional method, in order to double the production capacity, it is necessary to add one line to make two lines. In addition to the oven, the attached equipment, for example, the carry-in conveyor, the carry-out conveyor, and these conveyors In the case where a heating means and a cooling means are provided, not only these heating and cooling means need to be in two series respectively, but also a large space occupied by the device is indispensable, and an increase in device cost is inevitable. According to the present invention, since these auxiliary facilities only need one line, the apparatus cost and the occupied space can be reduced, and therefore the production capacity per line can be increased at a low equipment cost.
Laminating ovens are connected in series, but the number is preferably about 2 to 3 in terms of practicality and equipment cost.

  As will be described later in the second embodiment of the present invention, the upper and lower chambers of the laminating oven are provided with inlets and outlets for heated and pressurized air, and the diaphragm is expanded downward by introducing and circulating the heated and pressurized air to lower the lower chamber. By sandwiching the object to be laminated between the heating platen and the diaphragm by a vacuum suction force of about 100 Torr, heating from below with the heating platen, and heating with heated pressurized air from above through the diaphragm, Not only can the lamination be performed efficiently, but also the curing of the laminate can be promoted and performed in a short time.

  A second aspect of the present invention includes an upper chamber provided with a diaphragm and an air supply / exhaust port, a lower chamber provided with a heating plate and an air intake / exhaust port, which can be opened and closed, a laminate oven provided with a vacuum degassing means, a diaphragm, The laminating apparatus is characterized in that an upper chamber having an air supply / exhaust port and at least one curing oven having a lower chamber having a heating panel that can be opened and closed are connected in series.

  The first laminating apparatus of the present invention described above is formed by connecting a plurality of laminating ovens capable of operating from laminating to curing by vacuum degassing and heating of the object to be laminated. Can be divided into two, three, etc. at any stage, and the production capacity can be greatly increased. However, it is necessary to provide a vacuum deaeration means in each oven. However, there is a limit to achieve a significant cost reduction compared to the conventional method.

  On the other hand, the second laminating apparatus of the present invention divides the laminating operation and the curing operation for vacuum degassing of the object to be laminated, heating and laminating, and the laminating operation in the former stage is performed in the laminating oven, and the curing in the latter stage is performed. The operation is performed in a curing oven. As a result, the curing oven does not require a vacuum degassing operation, and thus has a feature that the cost of the apparatus can be reduced. The number of curing ovens connected to the laminating oven is preferably 1 to 3 from the viewpoint of practicality.

In this case, an inlet and an outlet for heated and pressurized air are provided in the upper chamber of the curing oven, and the diaphragm is expanded downward by introducing and circulating the heated and pressurized air, so that the laminate is placed between the heating platen and the diaphragm. While being clamped, by heating from below with a heating plate and from above with heating and pressurized air via a diaphragm, curing of the laminate can be promoted and performed in a short time.
In this case as well, as in the case of the laminating oven, if necessary, the lower chamber can be provided with an intake / exhaust port, and curing can be performed by reducing the pressure applied to the upper chamber while evacuating to a low degree.

  By filling the space of the upper chamber of the oven with the heating medium, the heating ability from above can be further enhanced through the diaphragm. As such a heating medium, for example, a hollow plastic sphere having a specific gravity of about the official ping-pong sphere and a diameter of about 5 to 20 mm, a plastic polyhedral filler usually used for an absorption operation of a chemical apparatus, and a circumscribed diameter of 5 to 20 mm. Some of them are listed. As the plastic, an engineering plastic that can withstand hot air of 145 ° C. or higher is preferably used. The filling density of the heating medium is preferably about 20 to 90%.

  Adjacent ovens may be connected directly, but are preferably connected via a transfer conveyor of appropriate length. By interposing the transfer conveyor in this way, it becomes easy to transfer the object to be laminated to the next oven, and it becomes easy to position the object to be laminated in the next oven. Since a space for maintenance is secured, these operations are facilitated.

  It is preferable to cover the periphery of the opening of the oven and / or the transfer conveyor with a heat insulating cover made of a heat-resistant material that can be expanded and contracted. By covering with such a heat insulating cover, it is possible to prevent low temperature air from flowing into the oven and to prevent the laminate to be cooled when it is transferred to the next oven by a transfer conveyor. , Can prevent energy loss.

  In front of the laminate oven in the front row, a carry-in conveyor for carrying the object to be laminated into the oven is attached. By providing heating means such as an aluminum casting heater and an infrared heater on the carry-in conveyor, The laminated body is preheated before being carried into the laminating oven, and the warpage of the laminated body during lamination can be prevented.

  The oven in the last row is provided with a carry-out conveyor for carrying out the laminate processed and cured, and the laminate is cooled in a short time by providing cooling means such as a blower fan on the carry-out conveyor. Therefore, cycle time can be shortened.

  The laminating apparatus of the present invention is widely used for producing various laminates, but is particularly useful for producing solar cell panels.

  Hereinafter, preferred embodiments of the laminating apparatus of the present invention will be described.

(Embodiment 1)
Embodiment 1 of the present invention will be described with reference to FIG. 1, FIG. 2 and FIG.
As shown in FIG. 1, a first laminating oven 1 and a second laminating oven 2 are connected via a transfer conveyor 5. In the pre-process of the first laminating oven 1, a carry-in conveyor 7 having a heating means 6 such as an aluminum casting heater for preheating is provided around it, and after the second laminating oven 2 is a laminated laminate. An unloading conveyor 9 for unloading 4a is provided, and a blower fan 8 for cooling the laminate 4a is provided. The transfer conveyor 5 is covered with a heat insulating cover 3. In addition, it is preferable that the periphery of the opening of the first and second laminate ovens is also covered with a heat insulating cover.

  Further, as shown in FIG. 2, the first and second laminating ovens 1 and 2 include an upper chamber 12 having a diaphragm 10 made of silicon rubber or the like and an upper air supply / exhaust port 11, and a heat insulating material 13A. A heating chamber 13 having a built-in electric heater or the like and a lower chamber 15 having a lower intake / exhaust port 14 are provided. The upper ends of the chambers are opposed to each other, and the upper chamber 12 is raised and lowered to be freely opened and closed. As described above, the engagement is made through an elevating device (not shown) using a cylinder, a rack and pinion or the like. Reference numeral 34 denotes a vacuum seal 0-ring.

  The upper air supply / exhaust port 11 and the lower intake / exhaust port 14 communicate with a vacuum deaeration means 18 such as a vacuum pump via an upper chamber three-way electromagnetic valve 16 and a lower chamber three-way electromagnetic valve 17, respectively.

  In addition, in each of the first and second laminating ovens 1 and 2, a driving roll is used to carry the laminated body 4 into the respective ovens from the previous process and to carry out from the oven to the subsequent processes. 35, a tension controller 36, and first and second conveyors 20 and 21 including a belt cleaning roll 19 with a brush and the like.

  The laminated body 4 is not particularly limited, but as shown in FIG. 3, the solar cell strings 22 are passed through a filler 23 such as EVA (ethylene vinyl acetate) which is a thermosetting resin. A description will be given below by taking as an example a case where a cover glass 24 on the surface to which light strikes and a back surface protective material 25 such as polyester (PET) or Tedlar film are sandwiched and laminated to complete a solar cell module 26.

  As described above, the object to be laminated 4 (two sheets in the figure) prepared in advance in the order of the cover glass 24, the filler 23, the solar cell strings 22, the filler 23, and the protective material 25 is prepared on the carry-in conveyor 7. Is placed on the laminated body 4 which has been preheated by the heating means 6 such as an aluminum casting heater, the upper chambers 12 of the first and second laminating ovens 1 and 2 are raised, In synchronism, the first and second conveyors 20 and 21 are respectively transported to the next process.

  When the object to be laminated 4 enters the first laminating oven 1, the upper chamber 12 is lowered, and the lower chamber 15 and its open ends are in contact with each other via the 0-ring 34 and sealed. Subsequently, the upper chamber 27 and the lower chamber 28 which are formed with the diaphragm 10 as a boundary by the operation of the three-way solenoid valves 16 and 17 are connected to the vacuum deaeration means 18 via the respective air supply / exhaust ports 11 and intake / exhaust ports 14. The communication vacuum 11 is started. At the same time, the temperature of the laminated body 4 is raised by the heat transmitted from the heating panel 13, and only the three-way solenoid valve 16 for the upper chamber operates, so that the air supply / exhaust port 11 communicates with the atmosphere side. At the same time, a pressure difference is generated between the upper chamber 27 and the lower chamber 28 formed with the diaphragm 10 as a boundary. The laminated body 4 laminated in the order of the cover glass 24, the filler 23, the solar cell strings 22, the filler 23, and the protective material 25 is defoamed, and the diaphragm 10 expands downward by this differential pressure. Thus, the laminate 4 is pressed between the diaphragm 10 and the heating board 13 and vacuum thermocompression bonded.

When the object to be laminated 4 is transferred to the second laminating oven 2 by the transfer conveyor 5, the three-way solenoid valve 16A operates so that the air supply / exhaust port 11 is opened to the atmosphere, and the three-way solenoid valve 17A sucks and exhausts air. The lower chamber 28 operates so as to communicate with the vacuum deaeration means 18 through the port 14. Accordingly, the diaphragm 10 expands downward due to the differential pressure, and the EVA cross-linking reaction is accelerated and cured in a state where the laminate 4 is sandwiched between the diaphragm 10 and the heating platen 13.
The diaphragm 10 can also be expanded downward by introducing pressurized air from the air supply / exhaust port 11.

  As described above, when the laminated body 4a laminated, that is, the solar cell module 26 is carried out by the swell conveyor 9, it is air-cooled by the blower fan 8.

  As described above, according to the first embodiment, the conventional laminating processing operations in a broad sense are divided and arranged in series, thereby enabling production with a short tact time. In the first embodiment, the function is the same regardless of which one of the first laminating oven 1 and the second laminating oven 2 fails. Therefore, production can be continued using either one of the ovens. It is.

(Embodiment 2)
The second embodiment is basically the same in structure except that the second laminating oven 2 described in the first embodiment is replaced with a curing oven 29.
The difference in configuration from the first embodiment will be described. As shown in FIGS. 4 and 5, the upper chamber 12 of the cure oven 29 includes a diaphragm 10, an air supply port 30 as an air supply / exhaust port, and an exhaust port. 31 is provided with two independent systems, and the two air supply ports 30 and the exhaust ports 31 are communicated with a blower port and an intake port of a blower 32 such as a rotary blower. The heat source device 33 having a heat exchanger is provided on the downstream side of the 32 air outlets so that the heated pressurized air circulates in the upper chamber 27 above the diaphragm 10. In the lower chamber 15 of the curing oven 29, the intake / exhaust port 14 of the second laminating oven 2 described in the first embodiment is omitted and is easily formed.

In this embodiment 2, in the first laminating oven 1, the object to be laminated 4 is defoamed and heated, and is covered between the diaphragm 10 and the heating plate 13 expanded downward by the differential pressure from the diaphragm 10. The laminate 4 is sandwiched, sealed with EVA resin, and vacuum thermocompression-bonded. After that, the laminate 4 is conveyed on the transfer conveyor 5 around which the heat insulating cover 3 is provided, and is almost in the temperature state. It is introduced into the curing oven 29 while being maintained. In the cure oven 29, the upper surface of the laminate 4 is averaged through the diaphragm 10 that is received from the heating plate 13 again and expanded downward by the heated and pressurized air circulating in the upper chamber 27 of the upper chamber 11. Pressurized and heated. In this way, since the laminated body 4 receives heat from both the upper and lower sides, the in-plane temperature distribution becomes uniform, and therefore, no warping or the like occurs and the curing of the EVA resin as the filler is effective. To be promoted.
Further, it is preferable to circulate the heated and pressurized air in two lines because the temperature distribution is more uniform than in the case of one line.
In the curing oven 29 as well as the laminating oven 1, the lower chamber 15 can be provided with the intake / exhaust port 14, connected to a low vacuum means, and can be cured while being pulled to a low vacuum.

(Embodiment 3)
As shown in FIG. 6, the present embodiment 3 is a form in which two curing ovens 29 in the above-described embodiment 2 are connected via the transfer conveyor 5, and basically the functions, operations, etc. thereof are as described above. It is the same as the form.

  By providing a plurality of curing ovens 29 as in the present embodiment, the range of curing conditions can be expanded, the degree of curing of the laminate 4 can be arbitrarily adjusted, and tact reduction can be achieved.

(Embodiment 4)
In this embodiment, as shown in FIG. 7, the transfer conveyor 5 disposed between the curing ovens 29 in the above-described embodiment 3 is omitted, and two curing ovens 29 are directly connected. Energy loss can be avoided, and the laminating apparatus can be constructed in a compact and inexpensive manner.

  EXAMPLES Hereinafter, although an Example is given and this invention is further explained in full detail, it cannot be overemphasized that this invention is not restrict | limited to this Example.

Example 1
An apparatus almost the same as the laminating apparatus shown in FIG. 1 was used. Two 1500 mm × 800 mm solar cell panels are prepared as laminates, and the conditions of the laminating oven are as follows: heating panel temperature: 140 ° C., vacuum exhaust speed: 5000 liters / minute, ultimate vacuum: 1 Torr / arrival time 5 minutes, diaphragm pressure: 0.2 to 0.5 Mpa, and curing oven conditions: heating plate temperature: 145 ° C., diaphragm pressure: 0.9 Mpa, batch processing time of 3.5 minutes . The preheating temperature at the carry-in conveyor was 110 ° C. The space from the carry-in conveyor at this time to the carry-out conveyor was 33 square meters (total length 11 m × width 3 m). As a result, it is possible to produce in about half the space as compared to the space of 67 square meters in the conventional batch type production form having the same production capacity.

Example 2
An apparatus almost the same as the laminating apparatus shown in FIG. 6 was used. As the object to be laminated, two solar cell panels having the same size of 1500 mm × 800 mm as in Example 1 were prepared, and the conditions of the laminating oven were as follows: heating panel temperature: 140 ° C., vacuum exhaust speed: 5000 liters / minute, ultimate vacuum Degree: 1 Torr / arrival time 1.5 minutes, and the conditions of the first curing oven are as follows: heating plate temperature: 145 ° C., diaphragm pressure: 0.5 Mpa, and second curing oven As conditions, the heating plate temperature was 150 ° C., the diaphragm pressure was 0.9 MPa, and the batch processing time was 7 minutes.
The space from the carry-in conveyor to the carry-out conveyor at this time was 48 square meters (total length 16 m × width 3 m). As a result, it was confirmed that it was possible to produce in a space smaller than the space of 75 square meters in the production form using the conventional shelf-carriage type cure oven, and that a good cured solar cell panel could be manufactured.

  The laminating apparatus of the present invention is a so-called semi-continuous production line in which the individual processing steps in the laminating process are divided and processed. As a result, it is possible to save energy, save space, reduce manpower, and improve productivity. Can be greatly improved. The laminating apparatus of the present invention is particularly useful for the production of solar cell panels, and can provide a solar cell panel that converts inexhaustible sunlight free from environmental pollution into energy at low cost.

It is a block diagram which shows the laminating apparatus of Embodiment 1 of this invention. It is sectional drawing which shows the structure of the lamination oven of the apparatus. It is a schematic diagram which shows the solar cell panel of a to-be-laminated body. It is a block diagram which shows the lamination apparatus of Embodiment 2 of this invention. It is sectional drawing which shows the structure of the curing oven of the apparatus. It is a block diagram which shows the lamination apparatus of Embodiment 3 of this invention. It is a block diagram which shows the laminating apparatus of Embodiment 4 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st laminating oven 2 2nd laminating oven 3 Thermal insulation cover 4 Laminate body 4a Laminate body 5 Transfer conveyor 6 Heating means (aluminum cast heater)
7 Carry-in conveyor 8 Cooling means (fan)
DESCRIPTION OF SYMBOLS 9 Unloading conveyor 10 Diaphragm 11 Upper air supply / exhaust port 12 Upper chamber 13 Heating panel 13A Heat insulating material 14 Lower intake / exhaust port 15 Lower chamber 16, 16A Three-way solenoid valve 17, 17A Three-way solenoid valve 18 Vacuum deaeration means 19 Belt cleaning roll 20 First 1 Conveyor 21 Second Conveyor 22 Solar Cell Strings 23 Filler 24 Cover Glass 25 Protective Material 26 Solar Cell Module 27 Upper Chamber 28 Lower Chamber 29 Cure Oven 30 Air Supply Port 31 Exhaust Port 32 Blower 33 Heat Source 34 0 ring 35 Roll for driving 36 Tension controller

Claims (8)

  The upper chamber with diaphragm and air supply / exhaust port and the lower chamber with heating plate and air intake / exhaust port are openable and closable, and laminate ovens with vacuum degassing means are connected in series. Laminating equipment.   An upper chamber with a diaphragm and an air supply / exhaust port, a lower chamber with a heating plate and an air intake / exhaust port, and a laminate oven with a vacuum degassing means, and an upper part with a diaphragm and an air supply / exhaust port A laminating apparatus comprising: a chamber and at least one curing oven provided with a heating chamber and a lower chamber that is freely opened and closed, connected in series.   The laminating apparatus according to claim 1 or 2, wherein a heated pressurized air inlet and a heated pressurized air outlet are provided in an upper chamber of the oven.   The laminating apparatus according to any one of claims 1 to 3, wherein a space portion of the upper chamber is filled with a heating medium such as a hollow plastic.   The laminating apparatus according to any one of claims 1 to 4, wherein a heating means is provided on a carry-in conveyor for carrying a laminated body into a laminating oven.   The laminating apparatus according to any one of claims 1 to 5, wherein a transfer conveyor is interposed between the ovens.   The laminating apparatus according to claim 6, wherein the oven and / or the transfer conveyor is covered with a heat insulating cover.   The laminating apparatus according to any one of claims 1 to 7, wherein a cooling means is provided in an unloading conveyor for unloading the laminate from the last row of ovens.

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