CN116901415B - Photovoltaic transparent backboard multilayer composite film co-extrusion film blowing equipment - Google Patents
Photovoltaic transparent backboard multilayer composite film co-extrusion film blowing equipment Download PDFInfo
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- CN116901415B CN116901415B CN202311139788.XA CN202311139788A CN116901415B CN 116901415 B CN116901415 B CN 116901415B CN 202311139788 A CN202311139788 A CN 202311139788A CN 116901415 B CN116901415 B CN 116901415B
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- film
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- belt structure
- photovoltaic transparent
- photovoltaic
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- 238000001125 extrusion Methods 0.000 title claims abstract description 96
- 238000010096 film blowing Methods 0.000 title claims abstract description 63
- 239000002131 composite material Substances 0.000 title claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 238000006073 displacement reaction Methods 0.000 claims abstract description 31
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000004140 cleaning Methods 0.000 claims abstract description 18
- 238000003825 pressing Methods 0.000 claims description 22
- 239000000243 solution Substances 0.000 claims description 17
- 239000013307 optical fiber Substances 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 239000007888 film coating Substances 0.000 claims description 12
- 238000009501 film coating Methods 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 9
- 210000001503 joint Anatomy 0.000 claims description 9
- 238000013016 damping Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 239000004745 nonwoven fabric Substances 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 210000000481 breast Anatomy 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 13
- 238000013329 compounding Methods 0.000 abstract description 10
- 230000037303 wrinkles Effects 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000012528 membrane Substances 0.000 description 29
- 238000007664 blowing Methods 0.000 description 19
- 239000000463 material Substances 0.000 description 19
- 239000004033 plastic Substances 0.000 description 8
- 229920003023 plastic Polymers 0.000 description 8
- 238000009434 installation Methods 0.000 description 7
- 238000005507 spraying Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007607 die coating method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 210000000582 semen Anatomy 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 210000002489 tectorial membrane Anatomy 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention discloses a multilayer composite film co-extrusion film blowing device for a photovoltaic transparent backboard, which relates to the technical field of film blowing processing equipment and comprises a support frame, wherein a first conveying belt structure is arranged at the top of the support frame, and the problems that films are easy to adhere to form wrinkles due to light weight when film compounding is carried out for many times under the cooperation of a processing assembly, a nano angle sensor, a high angle motor and a second displacement transmission assembly are reduced, so that the film compounding loss is caused, the use problem of a final photovoltaic transparent backboard is influenced, meanwhile, under the cooperation of an alcohol liquid box, a first displacement transmission assembly, a conveying pipeline and a pre-cleaning assembly, the cleaning operation on the surface of the photovoltaic transparent backboard is facilitated, the film layer extruded and blown can not generate bubbles and film layer breakage due to particles adsorbed on the surface of the photovoltaic transparent backboard during the subsequent co-extrusion film blowing operation, the final formed composite film is influenced, and the integrity of the film layer operation is ensured.
Description
Technical Field
The invention relates to the technical field of film blowing processing equipment, in particular to a photovoltaic transparent backboard multilayer composite film co-extrusion film blowing device.
Background
The film blowing machine is processing equipment for heating and melting plastic particles and then blowing the plastic particles into films, the traditional film blowing machine mainly comprises a machine body, a plastic particle feeding hopper arranged on the machine body, a plastic particle heating and melting device connected with the plastic particle feeding hopper, a film blowing device connected with the plastic particle heating and melting device, a stretching finishing device connected with the film blowing device and a winding device connected with the stretching finishing device, the traditional film blowing device mainly comprises a film blowing barrel and a die arranged in the film blowing barrel, a die rod extending to the outside is arranged in the film blowing barrel, the die rod is mainly used for accumulating blown formed films to realize the purposes of lamination and guiding, the film blowing machine head of the multilayer coextrusion film blowing equipment is provided with a plurality of annular flow channels, the number of the annular flow channels is the same as that of coextrusion of the composite plastic films, an extruder is arranged corresponding to each annular flow channel, and each extruder is provided with a feeding section, a compression section and a metering section according to the material flowing direction.
However, in the prior art, when the multi-layer composite film co-extrusion film blowing operation is performed on the photovoltaic transparent back plate, plastics with different colors and materials are required to be adhered together, so that the plastics are heated and melted while blowing and form a film through a die, but when film compounding is performed for many times, the film is easy to cause adhesion of the multi-layer film to generate wrinkles due to the light weight of the film, the film compounding loss is caused, and the use of the final photovoltaic transparent back plate is affected, so that a new photovoltaic transparent back plate multi-layer composite film co-extrusion film blowing device is required to be provided.
Disclosure of Invention
The invention aims to provide a multilayer composite film co-extrusion film blowing device for a photovoltaic transparent backboard, which aims to solve the problems that when the multilayer composite film co-extrusion film blowing operation is carried out on the photovoltaic transparent backboard, the adhesion of the multilayer film is easy to cause wrinkles, the film composite loss is caused and the use of the final photovoltaic transparent backboard is influenced due to the light weight of the film.
In order to achieve the above purpose, the present invention provides the following technical solutions: the photovoltaic transparent backboard multilayer composite film co-extrusion film blowing equipment comprises a supporting frame, wherein a first conveying belt structure is arranged at the top of the supporting frame, a second conveying belt structure is arranged at the side of the first conveying belt structure, second gantry hack levers are arranged at the left side end and the right side end of the second conveying belt structure, a supporting beam frame is welded at the center end of the top of the second gantry hack lever, an extruder is arranged at the top of the supporting beam frame in an erected mode, a double-port extrusion pipe is arranged at the bottom of the extruder, a second displacement transmission assembly is communicated with the bottom of the double-port extrusion pipe, a temperature controller is arranged at the bottom of the second displacement transmission assembly, an extrusion pipe is arranged at the bottom side end of the temperature controller, and a processing assembly is arranged at the bottom of the extrusion pipe;
the processing subassembly includes counterpoint platform, the left and right sides fixedly connected with separation board support of counterpoint platform, the bottom fixedly connected with pressure membrane board of separation board support, the limit side sliding connection of counterpoint platform has biax pneumatic cylinder, just counterpoint platform with extrude the pipe intercommunication, the left and right sides end intercommunication of counterpoint platform is provided with the pneumatic tube, just the bottom intercommunication of counterpoint platform has extrusion port membrane, wherein, the pneumatic tube under external pneumatic controller cooperation with extrusion port membrane intercommunication control, the outer wall one side surface setting of extrusion port membrane installs temperature sensor, just the bottom both ends of biax pneumatic cylinder are provided with the connecting axle, the bottom connection of connecting axle is provided with airflow controller, airflow controller's bottom installation is provided with the air blowing board, the left and right sides table wall intercommunication of air blowing board has the air source pipe, the side end pump of air source pipe is gone into and is had the high-pressure membrane of inflation pump, the bottom installation of extrusion port membrane is provided with extrusion space, the outer wall surface mounting motor of extrusion space is equipped with the external air pressure controller cooperation with the extrusion port membrane, the inside mounting has the pressure membrane board, the outer side of extrusion port membrane is provided with the pressure membrane board, the angle is installed from the outer side of air pressure membrane, the outer side of air controller is provided with the pressure membrane board, the angle is installed to the pressure membrane board.
Preferably, the left side and the right side of the support frame are erected and installed with a first gantry frame rod, a first displacement transmission assembly is fixedly installed on the symmetrical surface of the first gantry frame rod, an alcohol solution box is erected and installed at the top of the first displacement transmission assembly, an alcohol injection end is arranged at the top of the alcohol solution box, the side wall surface of the alcohol solution box is communicated with a conveying pipeline, a pressurizing pump is arranged on the outer installation of the conveying pipeline, a rotating shaft support arm is fixedly connected to the bottom of the first displacement transmission assembly through a flange connecting disc, and a pre-cleaning assembly is fixedly connected to the bottom of the conveying pipeline.
Preferably, the side of second conveyer belt structure is provided with the controller, just the surface of second conveyer belt structure is provided with the photovoltaic board and places the region, the butt joint recess has been seted up to the transport breast frame left and right sides of second conveyer belt structure, just the right side end of first conveyer belt structure is provided with the swash plate guide slot, the avris of swash plate guide slot with second conveyer belt structure laminating is connected.
Preferably, two groups of brushless motors are symmetrically arranged at two ends of the top of the second gantry hack lever, the bottom output shafts of the two groups of brushless motors penetrate through electromagnetic guide rail columns arranged in the second gantry hack lever, a sliding groove is formed in the inner wall surface of the second gantry hack lever, a movable sliding rod is connected to the sliding groove in a sliding mode, a blocking plate is arranged at the bottom of the movable sliding rod, and the blocking plate is in butt joint with a butt joint groove in an inserting mode.
Preferably, the left end and the right end of the second conveying belt structure are fixedly connected with cylindrical guide rails through three groups of self-tapping nuts, a sleeve barrel is arranged on the outer part of an inner guide rail column of each cylindrical guide rail, an upper horizontal bar sliding groove is formed in a penetrating mode on the surface of the top wall of each cylindrical guide rail, a pneumatic telescopic rack rod is fixedly arranged at the top of each sleeve barrel, and pressure rollers are arranged on the symmetrical inner wall surfaces of the top ends of the pneumatic telescopic rack rods.
Preferably, the outer wall surfaces of the left side and the right side of the second conveyer belt structure are provided with four groups of optical fiber position sensors, and the optical fiber position sensors are connected with two groups of brushless motors through signals.
Preferably, the top bottom wall surface mounting frame at one side of the first gantry frame rod is provided with a driving power supply, the output end of the driving power supply is connected with an ion wind rod through two lines, and the surface of the first conveying belt structure is provided with a conveying limit groove.
Preferably, the pre-cleaning assembly comprises an opening shell, a spray pipe is fixedly connected to the outer wall surface of the opening shell in a fitting mode, the spray pipe is communicated with the conveying pipeline, a servo motor is arranged on the outer wall surface of one side of the opening shell in a supporting mode, and a non-woven fabric drying roller is connected to the outer portion of an inner output shaft of the servo motor in a mounting mode.
Preferably, the first displacement transmission assembly comprises a stepping motor, an adjusting screw is installed at the outer part of an inner output shaft of the stepping motor, two limit guide posts are arranged on two sides of the adjusting screw, and an adjusting block is installed at the outer parts of the adjusting screw and the two limit guide posts.
Preferably, the second displacement transmission assembly comprises a feeding motor, a ball screw is arranged outside an inner output shaft of the feeding motor, damping guide rods are arranged on two sides of the ball screw, an extrusion sliding seat is arranged outside the ball screw and the damping guide rods, and inner spaces at two ends of the extrusion sliding seat are communicated with the double-port extrusion pipe.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, under the cooperation of the processing component and the second displacement transmission component, the extrusion materials are conveniently discharged outwards from the extruder under the cooperation of the extruder, the double-port extrusion pipe, the temperature controller, the extrusion pipe and the temperature sensor, the consistent temperature can be kept through numerical control equipment, the quality of the extrusion materials which are extruded and combined can be ensured, meanwhile, when the extrusion materials with controlled temperature are discharged to the extrusion port film through the alignment platform, after the extrusion materials are extruded in the extrusion space, the coating motor is utilized to drive the coating roller to carry out compression molding coating operation on the extrusion materials, so that the film layer after molding is attached to the surface of the film-coating plate, meanwhile, the film-blowing high-pressure air pump is started, so that the film-blowing high-pressure air pump carries out film-blowing operation on the film-blowing air flow from the air-blowing plate under the cooperation of the air source pipe, and meanwhile, the overflowed air flow carries out film-blowing plate blowing operation on the film layer attached to the surface of the film-coating plate from the extrusion space and the clearance of the film-coating plate, then under the cooperation of an air flow controller, the scattered air flow is controlled to form strip-shaped blowing air flow at the bottom of the film layer, then a double-shaft pneumatic cylinder is utilized to enable an alignment platform to drive a film pressing plate to descend to perform film pressing operation on the blown film layer under the cooperation of a connecting shaft, and under the cooperation of a nano angle sensor, the film pressing plate sends a control signal to a high angle motor in real time in the film pressing operation process, so that the high angle motor drives the film pressing plate to perform micro-angle rotation, the quality of a pressing mold is further ensured, and meanwhile, the operation is repeated for a plurality of times, so that the problem that when film compounding is performed for a plurality of times, the film is easy to cause adhesion of the multilayer film to generate wrinkles, and film compounding loss is caused, and affects the use of the final photovoltaic transparent backsheet.
2. According to the invention, under the cooperation of the alcohol liquid box, the first displacement transmission assembly, the conveying pipeline and the pre-cleaning assembly, alcohol liquid in the alcohol liquid box is conveniently subjected to alcohol spraying cleaning operation on the surface of the transparent backboard of the placed photovoltaic panel under the cooperation of the conveying pipeline, the pressurizing pump and the spraying pipe, and meanwhile, the servo motor is started, so that the servo motor drives the non-woven fabric drying roller to clean the sprayed surface of the transparent backboard, and the film layer extruded and blown by the servo motor is prevented from generating bubbles and damaging the film layer due to particles adsorbed on the surface of the transparent backboard in the follow-up co-extrusion film blowing operation, so that the finally formed composite film is influenced.
3. According to the invention, the cylindrical guide rail and the optical fiber position sensor are matched, so that the cylindrical guide rail and the upper horizontal bar chute can conveniently drive the pressure roller to perform film pressing operation on the adhered film layer under the matching of the optical fiber position sensor, the adhesiveness of the multi-layer composite film is ensured, the ion wind rod is enabled to adhere dust particles above the film layer under the matching of the driving power supply, the film layer adhesive compositing is further ensured, and meanwhile, the whole device forms automatic operation, so that the integrity of film layer operation is ensured.
Drawings
FIG. 1 is a schematic diagram of a structure of a front view of a photovoltaic transparent backboard multilayer composite film coextrusion film blowing device;
FIG. 2 is a schematic top view of a photovoltaic transparent backsheet multilayer composite film coextrusion film blowing apparatus according to the present invention;
FIG. 3 is a schematic diagram of a structure of a head-up view in a photovoltaic transparent backboard multilayer composite film coextrusion film blowing device of the invention;
FIG. 4 is a schematic structural view of an operation in a first conveyor belt structure in the photovoltaic transparent backboard multilayer composite film coextrusion film blowing device of the invention;
FIG. 5 is a schematic structural view of the operation in the second conveyor belt structure in the photovoltaic transparent backboard multilayer composite film coextrusion film blowing device of the invention;
FIG. 6 is a schematic structural view of a pre-cleaning assembly in a photovoltaic transparent back sheet multilayer composite film co-extrusion film blowing device of the present invention;
FIG. 7 is a schematic installation view of a structure above a second conveyor belt structure in the photovoltaic transparent backboard multilayer composite film coextrusion film blowing device of the invention;
FIG. 8 is a schematic diagram of the installation structure of a second displacement transmission assembly in the photovoltaic transparent backboard multilayer composite film coextrusion film blowing device of the invention;
FIG. 9 is a schematic structural view of a processing assembly in the photovoltaic transparent back sheet multilayer composite film coextrusion film blowing apparatus of the present invention;
fig. 10 is a schematic structural view of a processing component part in the photovoltaic transparent back sheet multilayer composite film coextrusion film blowing device of the present invention.
In the figure: 1. a support frame; 2. a first gantry frame bar; 3. a first conveyor belt structure; 4. a conveying limit groove; 5. a first displacement transmission group; 51. a stepping motor; 52. adjusting a screw; 53. limiting guide posts; 6. an alcohol cartridge; 7. a pressurizing pump; 8. a rotating shaft support arm; 9. a delivery line; 10. a pre-cleaning assembly; 101. an opening housing; 102. a servo motor; 103. a nonwoven fabric drying roll; 104. a spray tube; 11. a sloping plate guide groove; 12. an ion wind bar; 13. a second conveyor belt structure; 14. a controller; 15. a photovoltaic panel placement area; 16. a butt joint groove; 17. a cylindrical guide rail; 18. a sleeve joint cylinder; 19. a second gantry frame bar; 20. a brushless motor; 21. a chute; 22. moving the slide bar; 23. a blocking plate; 24. a support beam frame; 25. an extruder; 26. a second displacement transmission assembly; 261. a feed motor; 262. a ball screw; 263. damping guide rod; 264. extruding a sliding seat; 27. a temperature controller; 28. pneumatic telescopic rack rod; 29. a pressure roller; 30. an optical fiber position sensor; 31. a driving power supply; 32. extruding a pipe; 33. processing the assembly; 3301. an alignment platform; 3302. a separator plate support; 3303. film pressing plates; 3304. an air pressure pipe; 3305. a double-shaft pneumatic cylinder; 3306. extruding an outlet film; 3307. a connecting shaft; 3308. a temperature sensor; 3309. extrusion space; 3310. an air flow controller; 3311. a film blowing high-pressure air pump; 3312. an air source pipe; 3313. an air blowing plate; 3314. film-coating plates; 3315. coating a motor; 3316. a coating roller; 34. the pipe is extruded from the double openings.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one: referring to fig. 1-10: the photovoltaic transparent backboard multilayer composite film co-extrusion film blowing equipment comprises a support frame 1, wherein a first conveying belt structure 3 is arranged at the top of the support frame 1, a second conveying belt structure 13 is arranged at the side of the first conveying belt structure 3, second gantry frame rods 19 are arranged at the left side end and the right side end of the second conveying belt structure 13, a supporting beam frame 24 is welded at the center end of the top of the second gantry frame rods 19, an extruder 25 is arranged at the top of the supporting beam frame 24 in a erecting mode, a double-port extrusion pipe 34 is arranged at the bottom of the extruder 25, a second displacement transmission assembly 26 is communicated with the bottom end of the double-port extrusion pipe 34, a temperature controller 27 is arranged at the bottom of the second displacement transmission assembly 26 in a circulating mode, an extrusion pipe 32 is arranged at the bottom side end of the temperature controller 27, and a processing assembly 33 is arranged at the bottom of the extrusion pipe 32; the processing subassembly 33 includes counterpoint platform 3301, counterpoint platform 3301's left and right sides both ends fixedly connected with separation board support 3302, separation board support 3302's bottom fixedly connected with pressure membrane board 3303, counterpoint platform 3301's limit sideslip is connected with biax pneumatic cylinder 3305, and counterpoint platform 3301 and extrusion tube 32 intercommunication, counterpoint platform 3301's left and right sides end intercommunication is provided with pneumatic tube 3304, and counterpoint platform 3301's bottom intercommunication has extrusion mouth membrane 3306, the outer wall one side surface setting of extrusion mouth membrane 3306 installs temperature sensor 3308, and biax pneumatic cylinder 3305's bottom both ends are provided with connecting axle 3307, connecting axle 3307's bottom connection is provided with airflow controller 3310, airflow controller 3310's bottom installation is provided with the gas-blowing board 3313, the left and right sides table wall intercommunication of gas source tube 3312 has the high-pressure membrane of blowing board to pump into, and the bottom installation of extrusion mouth membrane 3306 has extrusion space 3309, the motor surface mounting motor output shaft of extrusion space 3309 has the pressure membrane board, the outer wall surface mounting of motor shaft 5 of extrusion space is provided with pressure membrane board 3314, the outer side mounting of the pressure membrane board is carried out the pressure membrane board is in the pressure membrane board is carried out to the motor axial side surface mounting of the pressure membrane board 3314, the pressure membrane board is in the pressure membrane board 3314, the pressure sensor is mounted in the pressure membrane board 3314 is arranged at the pressure membrane section of the pressure membrane section is 3314.
The first embodiment of the present invention achieves the effects that, when a multilayer coextrusion film blowing operation is required for the photovoltaic transparent back plate, the photovoltaic transparent back plate is placed on the surface of the first conveying belt structure 3 to be conveyed to the position of the second conveying belt structure 13, then the extruder 25 is started, so that a dual-port extrusion pipe at the bottom of the extruder 25 and the second displacement transmission assembly 26 are communicated with each other for extrusion operation, wherein the dual-port extrusion pipe is set to be a soft metal pipe structure, the extrusion temperature of the extruder 25 is controlled under the action of the temperature controller 27, the extruder 25 is ensured to discharge the extrusion material outwards, the quality of the extrusion material which is extruded and combined can be ensured by a numerical control device while the extrusion material is kept at a consistent temperature, then, under the cooperation of the extrusion pipe 32, the extrusion material with the controlled temperature is conveniently discharged to the position of the extrusion port film 3306 through the alignment platform 3301, and under the cooperation of the temperature sensor 3308, the film extrusion device is convenient to control the temperature controller 27 through the connection of circuit electrical signals, and further carries out temperature control operation in real time, when extrusion materials are extruded in the extrusion space 3309, the coating motor 3315 is used for driving the coating roller 3316 to carry out compression molding coating operation on the extrusion materials, so that a film layer is attached to the surface of the film coating plate 3314 after molding, meanwhile, the film blowing high-pressure air pump 3311 is started, so that the film blowing high-pressure air pump 3311 carries out film blowing operation on film blowing air flow from the air blowing plate 3313 under the cooperation of the air source pipe 3312, meanwhile, overflowed air flow carries out blowing on the film layer attached to the surface of the film coating plate 3314 from the clearance between the extrusion space 3309 and the film coating plate 3314, then under the cooperation of the air flow controller 3310, the overflowed air flow is controlled, so that the overflowed air flow forms blowing air flow at the bottom of the film layer, then under the cooperation of the connecting shaft 3307 by utilizing the double-shaft pneumatic cylinder 3305, the film pressing plate 3303 is driven to descend to press the blown film layer, and the film pressing plate 3303 sends control signals to the high-angle motor in real time under the cooperation of the nano angle sensor in the film pressing operation process, so that the high-angle motor drives the film pressing plate 3303 to rotate at a micro angle, the quality of a pressing mold is further guaranteed, the operation is repeated for a plurality of times, a multilayer composite film is formed on the surface of the photovoltaic transparent back plate, the problem that when film compounding is carried out for a plurality of times, the film is easy to cause adhesion of the multilayer film to generate wrinkles, film compounding loss is caused, and the use problem of the final photovoltaic transparent back plate is influenced.
Embodiment two: according to the figures 1-7, the left and right side ends of the supporting frame 1 are provided with a first portal frame rod 2, the symmetrical surface of the first portal frame rod 2 is fixedly provided with a first displacement transmission component 5, the top of the first displacement transmission component 5 is provided with an alcohol solution box 6, the top of the alcohol solution box 6 is provided with an alcohol injection end, the side wall surface of the alcohol solution box 6 is communicated with a conveying pipeline 9, the outside of the conveying pipeline 9 is provided with a booster pump 7, the bottom of the first displacement transmission component 5 is fixedly connected with a rotating shaft support arm 8 through a flange connecting disc, the bottoms of the rotating shaft support arm 8 and the conveying pipeline 9 are fixedly connected with a pre-cleaning component 10, the side edge of the second conveying belt structure 13 is provided with a controller 14, the surface of the second conveying belt structure 13 is provided with a photovoltaic panel placing area 15, the left and right sides of the conveying hurdle of the second conveying belt structure 13 are provided with a butt joint groove 16, the right side end of the first conveying belt structure 3 is provided with an inclined plate guide groove 11, the side of the inclined plate guide groove 11 is in fit connection with the second conveying belt structure 13, two groups of brushless motors 20 are symmetrically arranged at the two ends of the top of the second gantry hack lever 19, the bottom output shafts of the two groups of brushless motors 20 penetrate through electromagnetic guide rail columns arranged in the second gantry hack lever 19, a sliding groove 21 is formed in the inner wall surface of the second gantry hack lever 19, a movable sliding rod 22 is connected in a sliding manner in the sliding groove 21, a blocking plate 23 is arranged at the bottom of the movable sliding rod 22, the blocking plate 23 is in inserted connection with a butt joint groove 16, the left end and the right end of the second conveying belt structure 13 are fixedly connected with cylindrical guide rails 17 through three groups of self-tapping nuts, a sleeve joint barrel 18 is arranged at the outer part of the inner guide rail column of the cylindrical guide rail 17, an upper cross bar sliding groove is formed in a penetrating manner on the top wall surface of the cylindrical guide rail 17, the top fastening of a sleeve 18 installs pneumatic expansion bracket pole 28, the top symmetry inner wall surface mounting of pneumatic expansion bracket pole 28 has pressure roller 29, the left and right sides outer wall surface mounting of second conveyer belt structure 13 is provided with four sets of optic fibre position sensor 30, optic fibre position sensor 30 and two sets of brushless motor 20 signal connection, one side top diapire surface mounting bracket of first longmen hack lever 2 is equipped with drive power supply 31, drive power supply 31's output is connected with ion wind stick 12 through two lines, and the surface of first conveyer belt structure 3 is provided with and carries spacing groove 4.
The second embodiment of the present invention achieves the effects that when the photovoltaic transparent back plate is placed on the surface of the first conveyor belt structure 3, the first displacement transmission assembly 5 drives the alcohol solution box 6 to move in position, so that alcohol solution in the alcohol solution box 6 is matched with the conveying pipeline 9, the pressurizing pump 7 and the spraying pipe 104, alcohol spraying cleaning operation is conveniently performed on the surface of the placed photovoltaic transparent back plate, meanwhile, the servo motor 102 is started, so that the servo motor 102 drives the non-woven fabric drying roller 103 to clean the sprayed photovoltaic transparent back plate surface, the film layer extruded and blown by the film layer is prevented from generating bubbles and film layer damage due to particles adsorbed on the surface of the photovoltaic transparent back plate during the subsequent co-extrusion film blowing operation, the final formed composite film is affected, and after the cleaned photovoltaic transparent back plate is conveyed to the photovoltaic plate placing area 15 at the second conveyor belt structure 13 under the matching of the inclined plate guide groove 11, the optical fiber position sensor 30 is matched with the optical fiber position sensor, the conveyed photovoltaic transparent backboard is detected and fed back to the two groups of brushless motors 20, after the two groups of brushless motors 20 are started, under the matching of electromagnetic guide rail columns, the movable slide bar 22 drives the blocking plate 23 to slide in the chute 21 and block the side of the photovoltaic transparent backboard after being spliced with the butting groove 16, so that the stability of the photovoltaic transparent backboard in the multilayer composite film coextrusion blowing operation is ensured, after the multilayer composite film operation, the cylindrical guide rail 17 and the upper horizontal bar chute can be utilized to enable the pneumatic telescopic rack bar 28 to drive the pressure roller 29 to press the adhered film layer under the matching of the optical fiber position sensor 30, the adhesiveness of the multilayer composite film is ensured, and under the matching of the driving power supply 31, so that the ion wind bar 12 adheres dust particles above the film layer, and further ensures the adhesive compositing property of the film layer.
Embodiment III: according to fig. 1, fig. 2, fig. 3, fig. 4, fig. 6, fig. 7 and fig. 8, the pre-cleaning assembly 10 comprises an opening shell 101, a spray pipe 104 is fixedly connected to the outer wall surface of the opening shell 101 in a fitting way, the spray pipe 104 is communicated with a conveying pipeline 9, a servo motor 102 is erected on the outer wall surface of one side of the opening shell 101, a non-woven fabric drying roller 103 is externally mounted and connected to an inner output shaft of the servo motor 102, the first displacement transmission assembly 5 comprises a stepping motor 51, an adjusting screw 52 is externally connected and mounted to an inner output shaft of the stepping motor 51, two limit guide posts 53 are arranged on two sides of the adjusting screw 52, an adjusting block is externally mounted to the adjusting screw 52 and the two limit guide posts 53, the second displacement transmission assembly 26 comprises a feeding motor 261, a ball screw 262 is externally mounted and provided to the inner output shaft of the feeding motor 261, damping guide rods 263 are mounted to two sides of the ball screw 262 and the outer mounting of the damping guide rods 263 are provided with extrusion slide 264, and two end inner spaces of the extrusion slide 264 are communicated with the double-port extrusion pipe.
The effect that its embodiment three reached is, when under the cooperation of feed motor 261, can make ball screw 262 and damping guide rod 263 drive extrusion slide 264 carry out the uniform velocity and remove, make the rete after the shaping, form incessant composite film layer on tectorial membrane 3314 surface, and under the toughness of composite film layer itself high strength, make the operation of carrying out the crowded blown film altogether to the transparent backplate surface of photovoltaic under the cooperation of overall structure, form automated operation, reduce staff's operation intensity, reduce the breakage rate of rete, and under step motor 51 cooperation, be convenient for adjusting screw 52 and two spacing guide pillars 53 make the regulating block drive wine semen box 6, precleaning subassembly 10, pivot support arm 8 and conveying pipeline 9 carry out the high-efficient cleaning operation to the transparent backplate surface of the inside of conveying spacing groove 4.
The wiring diagrams of the optical fiber position sensor 30, the film pressing plate 3303, the air pressure pipe 3304, the temperature sensor 3308, the air flow controller 3310, the film blowing high-pressure air pump 3311, the air source pipe 3312, the air blowing plate 3313, the film covering plate 3314, the nano angle sensor and the high angle motor in the invention belong to the common knowledge in the field, the working principle is the known technology, and the model is selected to be suitable according to the actual use, so the control mode and wiring arrangement of the optical fiber position sensor 30, the film pressing plate 3303, the air pressure pipe 3304, the temperature sensor 3308, the air flow controller 3310, the film blowing high-pressure air pump 3311, the air source pipe 3312, the air blowing plate 3313, the film covering plate 3314, the nano angle sensor and the high angle motor are not explained in detail.
The application method and the working principle of the device are as follows: firstly, when multilayer coextrusion film blowing operation is required to be carried out on the photovoltaic transparent backboard, the photovoltaic transparent backboard can be placed at the conveying limit groove 4 on the surface of the first conveying belt structure 3, then under the control operation of the whole device of the controller 14, the stepping motor 51 is started, under the cooperation of the stepping motor 51, the adjusting screw 52 and the two limit guide posts 53 are convenient, the adjusting block drives the alcohol solution box 6, the rotating shaft support arm 8 and the conveying pipeline 9 to carry out efficient cleaning operation on the surface of the photovoltaic transparent backboard in the conveying limit groove 4, alcohol solution in the alcohol solution box 6 is convenient to carry out alcohol spraying cleaning operation on the surface of the placed photovoltaic transparent backboard under the cooperation of the conveying pipeline 9, the pressurizing pump 7 and the spraying pipe 104, meanwhile, the servo motor 102 is started, the non-woven fabric drying roller 103 is driven by the servo motor 102 to carry out cleaning operation on the surface of the sprayed photovoltaic transparent backboard, when ensuring the subsequent coextrusion film blowing operation, the extruded and blown film layer can not cause bubble generation and film layer damage of the film layer due to particles adsorbed on the surface of the photovoltaic transparent backboard, thus affecting the final formed composite film, then when the cleaned photovoltaic transparent backboard is conveyed to the photovoltaic board placement area 15 at the second conveyor belt structure 13 under the cooperation of the inclined board guide groove 11, the conveyed photovoltaic transparent backboard is detected under the cooperation of the optical fiber position sensor 30 and fed back to the two groups of brushless motors 20, so that after the two groups of brushless motors 20 are started, under the cooperation of the electromagnetic guide rail columns, the movable slide bars 22 drive the blocking board 23 to slide in the chute 21 and the side of the photovoltaic transparent backboard after being spliced with the butting groove 16, the stability of the photovoltaic transparent backboard multilayer composite film coextrusion film blowing operation is ensured, simultaneously starting the extruder 25, so that a double-port extrusion pipe at the bottom of the extruder 25 and the second displacement transmission component 26 are communicated with extrusion operation, wherein the double-port extrusion pipe is of a soft metal pipe structure, the extrusion temperature of the extruder 25 is controlled under the action of the temperature controller 27, the quality of extruded and combined extrusion materials can be ensured by keeping the consistent temperature through numerical control equipment while the extrusion materials are discharged outwards by the extruder 25, then, under the cooperation of the extrusion pipe 32, the extrusion materials with controlled temperature are conveniently discharged to an extrusion port film 3306 through a counterpoint platform 3301, and under the cooperation of a temperature sensor 3308, the extrusion materials are conveniently and electrically connected and controlled with the temperature controller 27 through a circuit electrical signal, the temperature control operation is further carried out in real time, when the extrusion materials are extruded in an extrusion space 3309, a coating roller 3316 is driven by a coating motor 3315 to carry out die coating operation on the extrusion materials, the film layer is attached to the surface of the film-coated plate 3314 after molding, meanwhile, the film-blowing high-pressure air pump 3311 is started, the film-blowing air pump 3311 is used for blowing film air flow from the blowing plate 3313 under the cooperation of the air source pipe 3312, meanwhile, scattered air flow blows the film layer attached to the surface of the film-coated plate 3314 from the clearance between the extrusion space 3309 and the film-coated plate 3314, then the scattered air flow is controlled under the cooperation of the air flow controller 3310, the scattered air flow forms strip-shaped blowing air flow at the bottom of the film layer, then the double-shaft pneumatic cylinder 3305 is used for driving the film-pressing plate 3303 to descend under the cooperation of the connecting shaft 3307 to press the blown film layer, the film-pressing plate 3303 is matched with the nano angle sensor, a control signal is sent to the high-angle motor in real time during the film-pressing operation, the high-angle motor drives the pressing film plate 3303 to rotate at a micro angle, the quality of the pressing mold is further guaranteed, the operation is repeated for a plurality of times, a multi-layer composite film is formed on the surface of the photovoltaic transparent back plate, the problem that the film is light in weight due to the fact that adhesion of the multi-layer film is easy to produce wrinkles when film compounding is carried out for a plurality of times is reduced, film compounding loss is caused, the use of the final photovoltaic transparent back plate is affected, then the cylindrical guide rail 17 and the upper transverse bar sliding groove are utilized to drive the pressure roller 29 to carry out film pressing operation on the adhered film layer under the cooperation of the optical fiber position sensor 30, the adhesion of the multi-layer composite film is guaranteed, and the ion air bar 12 adheres dust particles above the film layer under the cooperation of the driving power supply 31, so that the film layer adhesion composites are further guaranteed.
Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that various modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, and any modifications, equivalents, improvements or modifications made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a photovoltaic transparent backplate multilayer complex film crowds blown film equipment altogether which characterized in that: the device comprises a supporting frame (1), a first conveying belt structure (3) is arranged at the top of the supporting frame (1), a second conveying belt structure (13) is arranged at the side of the first conveying belt structure (3), a second gantry frame rod (19) is arranged at the left side end and the right side end of the second conveying belt structure (13), a supporting beam frame (24) is welded at the center end of the top of the second gantry frame rod (19), an extruder (25) is arranged at the top of the supporting beam frame (24), a double-port extrusion pipe (34) is arranged at the bottom of the extruder (25), a second displacement transmission assembly (26) is communicated with the bottom of the double-port extrusion pipe (34), a temperature controller (27) is arranged at the bottom of the second displacement transmission assembly (26), an extrusion pipe (32) is arranged at the bottom side end of the temperature controller (27), and a processing assembly (33) is arranged at the bottom of the extrusion pipe (32);
the processing component (33) comprises an aligning platform (3301), the left end and the right end of the aligning platform (3301) are fixedly connected with a separating plate support (3302), the bottom of the separating plate support (3302) is fixedly connected with a film pressing plate (3303), the side sliding of the aligning platform (3301) is connected with a double-shaft pneumatic cylinder (3305), the aligning platform (3301) is communicated with an extrusion pipe (32), the left side end and the right side end of the aligning platform (3301) are communicated with an air pressure pipe (3304), the bottom of the aligning platform (3301) is communicated with an extrusion port film (3306), one side surface of the outer wall of the extrusion port film (3306) is provided with a temperature sensor (3308), the two ends of the bottom of the double-shaft pneumatic cylinder (3305) are provided with a connecting shaft (3307), the bottom of the connecting shaft (3307) is connected with an air flow controller (3310), the bottom of the air flow controller (3310) is provided with a film (3), the bottom of the air flow controller (3313) is communicated with an air source (3319) which is arranged on the outer wall of the air source (3311), the air source (3319) is arranged on the outer wall of the air source (3319) of the air source (3311), the coating machine is characterized in that a coating roller (3316) is arranged outside an internal output shaft of the coating motor (3315), a film coating plate (3314) is arranged at the bottom of the extrusion space (3309), a nano angle sensor is arranged at the side end of the film coating plate (3303), a high angle motor is arranged at the side of the film coating plate (3303), and film blowing air flows blow film layers attached to the surface of the film coating plate (3314) from the clearance between the extrusion space (3309) and the film coating plate (3314).
2. The photovoltaic transparent backsheet multilayer composite film coextrusion film blowing apparatus according to claim 1, wherein: the alcohol cleaning device is characterized in that a first gantry hack lever (2) is arranged at the left side end and the right side end of the supporting frame (1), a first displacement transmission component (5) is fixedly arranged on the symmetrical surface of the first gantry hack lever (2), an alcohol solution box (6) is arranged at the top of the first displacement transmission component (5), an alcohol injection end is arranged at the top of the alcohol solution box (6), a conveying pipeline (9) is communicated with the side wall surface of the alcohol solution box (6), a pressurizing pump (7) is arranged at the outer part of the conveying pipeline (9), a rotating shaft support arm (8) is fixedly connected to the bottom of the first displacement transmission component (5) through a flange connecting disc, and a pre-cleaning component (10) is fixedly connected to the bottom of the conveying pipeline (9).
3. The photovoltaic transparent backsheet multilayer composite film coextrusion film blowing apparatus according to claim 1, wherein: the side of second conveyer belt structure (13) is provided with controller (14), just the surface of second conveyer belt structure (13) is provided with photovoltaic board and places regional (15), butt joint recess (16) have been seted up to the conveying breast frame left and right sides of second conveyer belt structure (13), just the right side end of first conveyer belt structure (3) is provided with swash plate guide slot (11), the avris of swash plate guide slot (11) with second conveyer belt structure (13) laminating is connected.
4. The photovoltaic transparent backsheet multilayer composite film coextrusion film blowing apparatus according to claim 1, wherein: two groups of brushless motors (20) are symmetrically arranged at two ends of the top of the second gantry hack lever (19), the bottom output shafts of the two groups of brushless motors (20) are communicated with electromagnetic guide rail columns which are arranged in the second gantry hack lever (19), a sliding groove (21) is formed in the inner wall surface of the second gantry hack lever (19), a movable sliding rod (22) is connected to the inner side of the sliding groove (21) in a sliding manner, a blocking plate (23) is arranged at the bottom of the movable sliding rod (22), and the blocking plate (23) is in inserted butt joint with a butt joint groove (16).
5. The photovoltaic transparent backsheet multilayer composite film coextrusion film blowing apparatus according to claim 1, wherein: the left end and the right end of the second conveying belt structure (13) are fixedly connected with cylindrical guide rails (17) through three groups of self-tapping nuts, a sleeve barrel (18) is arranged on the outer part of an inner guide rail column of the cylindrical guide rails (17), an upper horizontal bar sliding groove is formed in a penetrating mode on the top wall surface of the cylindrical guide rails (17), a pneumatic telescopic rack rod (28) is fixedly arranged on the top of the sleeve barrel (18), and pressure rollers (29) are arranged on the top symmetrical inner wall surface of the pneumatic telescopic rack rod (28).
6. The photovoltaic transparent backsheet multilayer composite film coextrusion film blowing apparatus according to claim 5, wherein: four groups of optical fiber position sensors (30) are arranged on the outer wall surfaces of the left side and the right side of the second conveying belt structure (13), and the optical fiber position sensors (30) are connected with two groups of brushless motors (20) in a signal mode.
7. The photovoltaic transparent backsheet multilayer composite film coextrusion film blowing apparatus according to claim 2, wherein: the top bottom wall surface mounting frame at one side of the first gantry hack lever (2) is provided with a driving power supply (31), the output end of the driving power supply (31) is connected with an ion wind rod (12) through two lines, and the surface of the first conveying belt structure (3) is provided with a conveying limit groove (4).
8. The photovoltaic transparent backsheet multilayer composite film coextrusion film blowing apparatus according to claim 2, wherein: the pre-cleaning assembly (10) comprises an opening shell (101), a spray pipe (104) is fixedly connected to the outer wall surface of the opening shell (101) in a fitting mode, the spray pipe (104) is communicated with the conveying pipeline (9), a servo motor (102) is arranged on the outer wall surface of one side of the opening shell (101), and a non-woven fabric drying roller (103) is connected to the outer portion of an inner output shaft of the servo motor (102) in a mounting mode.
9. The photovoltaic transparent backsheet multilayer composite film coextrusion film blowing apparatus according to claim 2, wherein: the first displacement transmission assembly (5) comprises a stepping motor (51), an adjusting screw (52) is installed on the outer portion of an inner output shaft of the stepping motor (51), two limit guide posts (53) are arranged on two sides of the adjusting screw (52), and adjusting blocks are installed on the outer portions of the adjusting screw (52) and the two limit guide posts (53).
10. The photovoltaic transparent backsheet multilayer composite film coextrusion film blowing apparatus according to claim 1, wherein: the second displacement transmission assembly (26) comprises a feeding motor (261), a ball screw (262) is arranged on the outer portion of an inner output shaft of the feeding motor (261), damping guide rods (263) are arranged on two sides of the ball screw (262), an extrusion sliding seat (264) is arranged on the outer portion of the ball screw (262) and the damping guide rods (263), and inner spaces at two ends of the extrusion sliding seat (264) are communicated with a double-port extrusion pipe.
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| CN202311139788.XA CN116901415B (en) | 2023-09-06 | 2023-09-06 | Photovoltaic transparent backboard multilayer composite film co-extrusion film blowing equipment |
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| CN202311139788.XA CN116901415B (en) | 2023-09-06 | 2023-09-06 | Photovoltaic transparent backboard multilayer composite film co-extrusion film blowing equipment |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111099060A (en) * | 2019-12-26 | 2020-05-05 | 王光银 | Photovoltaic cell surface film coating equipment and film coating method |
| CN114311644A (en) * | 2022-01-13 | 2022-04-12 | 国成能源建设集团股份有限公司 | Laminating equipment for photovoltaic solar module production and working method thereof |
| CN115440842A (en) * | 2022-10-09 | 2022-12-06 | 安徽华深铝业有限公司 | Backboard processing and assembling equipment for high-molecular photovoltaic panel and manufacturing process thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111099060A (en) * | 2019-12-26 | 2020-05-05 | 王光银 | Photovoltaic cell surface film coating equipment and film coating method |
| CN114311644A (en) * | 2022-01-13 | 2022-04-12 | 国成能源建设集团股份有限公司 | Laminating equipment for photovoltaic solar module production and working method thereof |
| CN115440842A (en) * | 2022-10-09 | 2022-12-06 | 安徽华深铝业有限公司 | Backboard processing and assembling equipment for high-molecular photovoltaic panel and manufacturing process thereof |
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