Photovoltaic adhesive film and laminating device thereof

Abstract

The invention relates to the technical field of photovoltaic cells, in particular to a photovoltaic adhesive film and a film covering device thereof. The film pressing device is arranged on the ground. And the cleaning device is arranged on the film pressing device and is in driving connection with the film pressing device. The auxiliary film pressing device is arranged on the film pressing device and is in driving connection with the film pressing device. The controller is arranged on the side of the film pressing device and on the ground, and the controller is electrically connected with the film pressing device. According to the photovoltaic panel film laminating equipment, before a photovoltaic panel is laminated, the photovoltaic panel can be cleaned, gaps and bubbles are prevented from being generated during film gluing, after film laminating, the photovoltaic panel film laminating equipment can press a glue film on the photovoltaic panel, a layer of beneficial chemical reagent is evenly smeared on the surface of the glue film, the working performance of a back plate of the photovoltaic panel is improved, meanwhile, the film pressing device of the equipment can be lubricated, and the working efficiency of the equipment is improved. And scratches are prevented from being generated on the adhesive film on the back plate of the photovoltaic panel.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic cells, and in particular to a photovoltaic adhesive film and a film coating device thereof. Background Art

[0002] The laminating device is a device used to cover the photovoltaic film on the solar panel. Its working principle usually involves closely bonding the film to the cell, glass and backplane by heating and pressurizing.

[0003] In the prior art, when the photovoltaic panel is coated, the surface of the photovoltaic panel will inevitably adhere to dust in the air due to the storage environment. At the same time, after the photovoltaic panel is coated, there may be some bubbles between the adhesive film and the coated surface of the photovoltaic panel, which needs to be pressed and the bubbles removed. However, when the adhesive film on the surface of the photovoltaic panel is pressed and the bubbles are removed by pressing, the friction force generated by the rotation of the pressing roller surface may damage the adhesive film. Therefore, in order to solve the above problems, we provide a photovoltaic adhesive film and a coating device thereof. Summary of the invention

[0004] The problem to be solved by the present invention is how to enable the equipment to clean the photovoltaic panels before laminating the photovoltaic panels to avoid gaps and bubbles during laminating. After laminating, the equipment can also press the film on the photovoltaic panels and evenly apply a layer of beneficial chemical reagents on its surface to improve the working performance of the photovoltaic panel backplane. At the same time, it can also lubricate the film pressing device of the equipment to avoid scratches on the film on the photovoltaic panel backplane. A photovoltaic film and a laminating device thereof are provided.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a film laminating device, including: a film pressing device, a cleaning device, an auxiliary film pressing device, and a controller.

[0006] The film pressing device is arranged on the ground. The cleaning device is arranged on the film pressing device and is drivingly connected to the film pressing device. The auxiliary film pressing device is arranged on the film pressing device and is drivingly connected to the film pressing device. The controller is arranged on the side of the film pressing device and is arranged on the ground, and the controller is electrically connected to the film pressing device.

[0007] Before laminating the photovoltaic panel backplane, the user can place the photovoltaic panel backplane on the film pressing device, which can transport the photovoltaic panel backplane to the cleaning device. The cleaning device can clean the film-coated surface of the photovoltaic panel backplane driven by the film pressing device to avoid poor lamination effect due to dust sticking to the photovoltaic panel backplane during lamination. After laminating the photovoltaic panel backplane, the user can control the film pressing device to transport in the reverse direction again. At this time, the film pressing device will drive the cleaning device to stop working and return to its original position to avoid damage to the film on the photovoltaic panel backplane after the lamination is completed. At the same time, the film pressing device can also press the film on the photovoltaic panel backplane to eliminate the bubbles formed between the film and the photovoltaic panel backplane, and make the film fit tightly against the photovoltaic panel backplane. When the film pressing device is pressing the adhesive film on the back of the photovoltaic panel, the film pressing device will also drive the auxiliary film pressing device to move. After the auxiliary film pressing device is moved, it can help lubricate the film pressing device to avoid leaving marks on the adhesive film on the back of the photovoltaic panel when the film pressing device is pressing the film on the back of the photovoltaic panel. Chemical reagents beneficial to the photovoltaic panel back are evenly applied on the adhesive film on the back of the photovoltaic panel, so as to improve the working performance of the photovoltaic panel back and the adhesion effect between the adhesive film and the photovoltaic panel back.

[0008] In this way, it is achieved that before laminating the photovoltaic panel backplane, the equipment can clean the photovoltaic panel backplane to avoid gaps and bubbles during film lamination. After laminating, the equipment can also press the film on the photovoltaic panel backplane and evenly apply a layer of beneficial chemical reagents on its surface to improve the working performance of the photovoltaic panel backplane. At the same time, it can also lubricate the film pressing device of the equipment to avoid scratches on the film of the photovoltaic panel backplane.

[0009] Furthermore, the laminating device includes: a conveying bracket, a first conveying roller, a second conveying roller, a conveying motor, a conveyor belt, a box body, a laminating mechanism, two first vertical plates, a transverse plate, two vertical slide grooves, an image sensor, a clamping roller, and a cylinder.

[0010] The conveying support is arranged on the ground.

[0011] The first conveying roller is arranged inside the conveying bracket, and its two ends respectively penetrate the two opposite sides of the conveying bracket and extend to the outer sides of the two opposite sides of the conveying bracket. The side surfaces of the first conveying roller are respectively rotatably connected to the two opposite sides of the conveying bracket, and the rotation axis is horizontally arranged.

[0012] The conveying motor is arranged on the side of the conveying bracket and on the side of the first conveying roller. The rotating shaft of the conveying motor is fixedly connected to the outer end of the first conveying roller extending to one of the side surfaces of the conveying bracket. The conveying motor is also fixedly connected to the outer side surface of the conveying bracket through a support plate. The conveying motor is electrically connected to the controller.

[0013] The second conveying roller is arranged inside the conveying bracket, on the side of the first conveying roller, and parallel to the first conveying roller. The two ends of the second conveying roller respectively penetrate the two opposite side portions of the conveying bracket and extend to the outer sides of the two opposite side portions of the conveying bracket. The side surfaces of the second conveying roller are respectively rotatably connected to the two opposite side portions of the conveying bracket, and the rotation axis is parallel to the axis of the first conveying roller.

[0014] The conveyor belt is arranged inside the conveyor bracket and sleeved on the first conveyor roller and the second conveyor roller. The inner side surface of the conveyor belt contacts the side surface of the first conveyor roller and the side surface of the second conveyor roller.

[0015] The laminating mechanism is arranged above the conveyor belt and directly above the second conveying roller. The laminating mechanism is connected to the top surface of the conveying bracket and is electrically connected to the controller.

[0016] The top surface of the box body is closed and is arranged above the conveyor belt, between the laminating mechanism and the conveying motor. The bottom surface of the box body is fixedly connected to the top surface of the conveying bracket, and two discharge ports are respectively arranged on two opposite side walls of the box body in the same direction as the conveying direction of the conveyor belt, and a number of dust curtains are respectively arranged on the inner top surfaces of the two discharge ports, and the lengths of the several dust curtains match the heights of the two discharge ports.

[0017] The two vertical slide grooves are respectively arranged inside the box body, and are respectively arranged on two inner walls inside the box body which are parallel to each other and have no discharge port. The two vertical slide grooves are parallel to each other, and the lengths thereof match the lengths of the inner walls of the box body.

[0018] The transverse plate is arranged inside the box body and above the conveyor belt. The two side surfaces of the transverse plate are respectively arranged inside the two vertical slide grooves and are respectively slidably connected with the inner walls of the two vertical slide grooves.

[0019] The cylinder is arranged above the box body, and the push rod of the cylinder passes through the top of the box body and extends into the inside of the box body. The push rod end face of the cylinder extending into the inside of the box body is fixedly connected to the top surface of the transverse plate, the gas delivery port of the cylinder is connected to the gas source, and the control circuit is electrically connected to the controller.

[0020] The two first vertical plates are respectively arranged inside the box body, between the transverse plate and the conveyor belt, the top surfaces of the two first vertical plates are respectively fixedly connected to the bottom surfaces of the transverse plates, and there is a spacing between the two first vertical plates, and they are parallel to each other.

[0021] The pinch roller is arranged inside the box body, between the two first vertical plates and above the conveyor belt. The rotating shafts at both ends of the pinch roller are respectively rotatably connected to the sides of the two first vertical plates close to each other, and the rotating axis is perpendicular to the telescopic rod axis of the cylinder.

[0022] The image sensor is arranged inside the box body, above the horizontal plate and to the side of the two first vertical plates. The image sensor is fixedly connected to the inner top surface of the box body, and the detection lens faces the top surface of the conveyor belt. The image sensor is also electrically connected to the controller.

[0023] By setting an image sensor, the images of the photovoltaic panel backboard with adhesive film, the photovoltaic panel backboard without adhesive film and the empty conveyor belt can be recorded together, so that when the photovoltaic panel backboard with adhesive film moves under the image sensor, the controller can control the cylinder to start, so as to press the pressing roller tightly against the film-coated surface of the photovoltaic panel backboard with adhesive film, so as to press the adhesive film. The coating mechanism adopts the photovoltaic panel roller coating device in the prior art.

[0024] Furthermore, the laminating device also includes: an anti-static vacuum cleaner.

[0025] The anti-static vacuum cleaner is arranged on the side of the conveying bracket and on the ground. The suction port of the anti-static vacuum cleaner passes through the side wall of the box body through a pipe and is connected with the interior of the box body. The anti-static vacuum cleaner is also electrically connected to the controller.

[0026] By setting up an anti-static vacuum cleaner, the dust inside the box can be sucked out when it is started, thereby ensuring a dust-free environment inside the box. At the same time, it can also remove static electricity on the surface of the film coating on the back of the photovoltaic panel, so that the subsequent coating mechanism can ensure a good coating effect when coating it.

[0027] Furthermore, the lamination device also includes: a bearing plate and a pressure sensor.

[0028] The interior of the load-bearing plate is hollow, and its length is twice the length of the photovoltaic panel backboard. The load-bearing plate is arranged inside the conveyor belt and below the box body, and the side surface of the load-bearing plate is fixedly connected to the inner wall of the conveying bracket.

[0029] The pressure sensor is arranged inside the carrying plate and fixedly connected to the inner wall of the carrying plate. The detection end of the pressure sensor passes through the top of the carrying plate and extends to the upper part of the carrying plate. The pressure sensor is electrically connected to the controller.

[0030] Furthermore, the pressure roller is made of corrosion-resistant material and has a smooth surface. A plurality of heating wires are arranged inside the pressure roller, and the plurality of heating wires are electrically connected to the controller.

[0031] By arranging a plurality of heating wires, the adhesive film on the film-coated surface of the photovoltaic panel back sheet when the pressing roller is pressing can better fit with the film-coated surface of the photovoltaic panel back sheet.

[0032] Furthermore, the cleaning device includes: a second vertical plate, a third vertical plate, a first through hole slot, a second through hole slot, a first pulley, a second pulley, a gear, a rack, a cleaning rod, a first sprocket, a second sprocket, a rotating rod, a tensioning mechanism, and a reset spring.

[0033] The second vertical plate is arranged above the conveying bracket and between the laminating mechanism and the box body. The bottom surface of the second vertical plate is fixedly connected to the top surface of the conveying bracket.

[0034] The third vertical plate is arranged above the conveying bracket and between the laminating mechanism and the box body. The third vertical plate and the second vertical plate are opposite and parallel to each other, and the bottom surface is fixedly connected to the top surface of the conveying bracket.

[0035] The first through hole groove is vertically arranged on the second vertical plate, perpendicular to the top surface of the conveyor belt, and a sliding block is arranged inside the first through hole groove, and the sliding block is slidably connected to the inner wall of the first through hole groove.

[0036] The second through hole groove is vertically arranged on the third vertical plate, parallel to the first through hole groove and matching the length of the first through hole groove. A slider is arranged inside the second through hole groove and is slidably connected to the inner wall of the second through hole groove.

[0037] The rack is arranged on the side of the first through hole groove away from the third vertical plate and above the conveyor belt, and the side surface of the rack is fixedly connected to the side surface of the slider in the first through hole groove.

[0038] The return spring is vertically arranged inside the first through hole groove, and the top end is fixedly connected to the inner top surface of the first through hole groove, and the bottom end is fixedly connected to the top surface of the slider inside the first through hole groove.

[0039] The cleaning rod is arranged between the first through hole groove and the second through hole groove, one end of the cleaning rod is rotatably connected to the side of the slider inside the first through hole groove away from the rack, the rotation axis is perpendicular to the setting direction of the first through hole groove, the other end passes through the side of the slider inside the second through hole groove, and extends to the side of the second through hole groove away from the second vertical plate, and the other end of the cleaning rod is rotatably connected to the side of the slider inside the second through hole groove.

[0040] The rotating rod is arranged laterally on the side of the second vertical plate close to the rack, and one end of the rotating rod is rotatably connected to the side of the second vertical plate close to the rack, and the rotating axis is parallel to the axis of the cleaning rod.

[0041] The first belt wheel is sleeved on the rotating rod and is located on the side of the rack away from the second vertical plate. The first belt wheel is fixedly connected to the side surface of the rotating rod.

[0042] The second pulley is sleeved on one end of the second conveying roller extending to the outside of the conveying bracket and is in the same plane as the first pulley. The second pulley is fixedly connected to the side surface of one end of the second conveying roller extending to the outside of the conveying bracket and is connected to the first pulley through a belt.

[0043] The gear is sleeved on the rotating rod and is located between the second vertical plate and the first pulley. The gear is fixedly connected to the side surface of the rotating rod and meshes with the rack.

[0044] The first sprocket is sleeved on the side end of the cleaning rod extending to the second through hole slot away from the second vertical plate, and the first sprocket is fixedly connected to the side end of the cleaning rod extending to the second through hole slot away from the second vertical plate.

[0045] The second sprocket is sleeved on the other end of the second conveying roller extending to the outside of the conveying bracket and is in the same plane as the first sprocket. The second sprocket is fixedly connected to the side of the other end of the second conveying roller extending to the outside of the conveying bracket and is connected to the first sprocket through a chain.

[0046] The tensioning mechanism is arranged on the side of the conveying bracket close to the second sprocket, between the first sprocket and the second sprocket, the tensioning mechanism is fixedly connected to the side of the conveying bracket close to the second sprocket, and the tensioning wheel of the tensioning mechanism is meshed with the chain connecting the first sprocket and the second sprocket.

[0047] By setting the first pulley, the second pulley, the gear, the rack, and the cleaning rod, the cleaning rod can be driven by the rack to adjust its position in the direction of rotation of the gear. When the gear rotates forward, the rack drops, so that the cleaning rod can move to a suitable processing position, and the gear flips and the rack rises, so that the cleaning rod can be restored, so as to avoid the cleaning rod being in the processing position and leaving scratches on the film surface on the back of the photovoltaic panel that has been coated. The setting of the tensioning mechanism can ensure that the chain of the first sprocket and the second sprocket can always maintain a suitable tension. Thereby preventing the chain from falling off the first sprocket and the second sprocket, or losing working performance. At the same time, the tensioning mechanism adopts the tensioning mechanism of the variable position used for the chain in the prior art.

[0048] Furthermore, the brushes on the cleaning rod are made of nylon.

[0049] The brushes on the cleaning rod are made of nylon material, which can ensure that the brushes have appropriate hardness and softness, thereby avoiding scratches on the film surface of the photovoltaic panel back sheet when cleaning.

[0050] Furthermore, the auxiliary film pressing device includes: an air bag, a conveying pipe, three spray heads, a liquid storage box, a cam, a first one-way valve, and a second one-way valve.

[0051] The airbag is arranged inside the box body, between the transverse plate and the rotating shaft of the pressing roller, and the airbag is fixedly connected to the bottom surface of the transverse plate.

[0052] The cam is arranged inside the box body and is located directly below the airbag. The cam is sleeved on the rotating shaft of the pressing roller. The cam is fixedly connected to the rotating shaft of the pressing roller and contacts the airbag.

[0053] The liquid storage box is arranged at the side of the box body, between the transverse plate and the conveyor belt, the outer side of the liquid storage box is fixedly connected to the outer side of the box body, and the silane coupling agent solution is stored in the liquid storage box.

[0054] The first one-way valve is arranged inside the box body and below the transverse plate. The airbag is close to the side of the liquid storage box. One end of the first one-way valve passes through the side of the airbag and is connected to the inside of the airbag, and the other end passes through the side of the box body and the side of the liquid storage box through a pipeline and is connected to the inside of the liquid storage box.

[0055] One end of the conveying pipe is closed and arranged inside the box body, between the transverse plate and the pressing roller, and the side surface of the conveying pipe is fixedly connected to the bottom surface of the transverse plate.

[0056] The second one-way valve is arranged inside the box body, below the transverse plate, and on the side of the airbag close to the delivery tube. One end of the second one-way valve passes through the side of the airbag and is connected to the inside of the airbag, and the other end is connected to the open end of the delivery tube through a hose.

[0057] The three spray heads are respectively arranged inside the box body and below the transverse plates. The input pipes of the three spray heads respectively penetrate the sides of the conveying pipe and are respectively connected to the inside of the conveying pipe. The spraying directions of the three spray heads are respectively facing the sides of the pressing roller, and the distance between the two adjacent spray heads can divide the pressing roller into three equal parts.

[0058] By arranging the airbag, the delivery pipe, three spray heads, the liquid storage tank, the cam, the first one-way valve, and the second one-way valve, the cam can continuously squeeze and move away from the airbag when the pressing roller rotates, so that the airbag can continuously suck the silane coupling agent solution inside the liquid storage tank into the airbag through the first one-way valve, and at the same time enter the delivery pipe through the airbag and the second one-way valve, and finally spray it onto the surface of the pressing roller through the three spray heads. The silane coupling agent solution on the surface of the pressing roller can not only lubricate the surface of the pressing roller to a certain extent to avoid excessive friction with the film on the back sheet coating surface of the photovoltaic panel, but also apply a layer of silane coupling agent solution to the surface of the film on the back sheet coating surface to improve the working performance of the film.

[0059] Furthermore, the three spray heads are respectively configured as swing-type spray heads, and the swinging area can completely cover the surface of the pressing roller.

[0060] The three spray heads are respectively configured as swinging spray heads, so that the three spray heads can evenly spray the silane coupling agent solution on various positions of the pressing roller, thereby avoiding uneven application of the silane coupling agent solution when the pressing roller presses the film on the film-coated surface of the photovoltaic panel back sheet.

[0061] A photovoltaic adhesive film includes: the photovoltaic adhesive film is an EVA adhesive film.

[0062] Beneficial effects of the present invention: 1. The present invention is provided with a film pressing device, a cleaning device, an auxiliary film pressing device, and a controller, wherein the film pressing device can eliminate static electricity on the film-coated surface of the photovoltaic panel backplane, and press the photovoltaic panel backplane after film coating, so that the adhesive film can be closely attached to the photovoltaic panel backplane, and remove the bubbles between the adhesive film and the photovoltaic panel backplane. The cleaning device can clean the surface of the photovoltaic panel backplane before film coating, so as to avoid excessive adhesion of dust on the film-coated surface of the photovoltaic panel backplane, which affects the subsequent film coating. The auxiliary film pressing device can spray chemical reagents on the film pressing device when the film pressing device presses the adhesive film and the photovoltaic panel backplane, so as to lubricate the film pressing device, so as to avoid the film pressing device leaving marks on the adhesive film on the film-coated surface of the photovoltaic panel backplane when the film pressing device presses the photovoltaic panel backplane, and evenly smear chemical reagents beneficial to the photovoltaic panel on the adhesive film of the photovoltaic panel backplane, so as to improve the working performance of the photovoltaic panel backplane, and the adhesive effect between the adhesive film and the photovoltaic panel backplane.

[0063] In this way, it is achieved that before laminating the photovoltaic panels, the equipment can clean the photovoltaic panels to avoid gaps and bubbles during lamination. After laminating, the equipment can also press the film on the photovoltaic panels and evenly apply a layer of beneficial chemical reagents on its surface to improve the working performance of the photovoltaic panel backplane. At the same time, it can also lubricate the equipment's laminating device to avoid scratches on the film on the photovoltaic panel backplane.

[0064] 2. The present invention sets a first pulley, a second pulley, a gear, a rack, a cleaning rod, and a tensioning mechanism, so that the cleaning rod can adjust its position by following the rotation direction of the gear driven by the rack. When the gear rotates forward, the rack drops, so that the cleaning rod can move to a suitable processing position, and the gear flips and the rack rises, so that the cleaning rod can be restored, so as to avoid the cleaning rod being in the processing position and leaving scratches on the film surface on the back of the photovoltaic panel that has been coated. The setting of the tensioning mechanism can ensure that the chain of the first sprocket and the second sprocket can always maintain a suitable tension. Thereby preventing the chain from falling off the first sprocket and the second sprocket, or losing working performance. At the same time, the tensioning mechanism adopts the tensioning mechanism of the variable position used for the chain in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1It is a front schematic diagram of the present invention; Figure 2 is a side cross-sectional view of the box body and the conveying support of the present invention; Figure 3 It is a schematic diagram of the back side of the A region of the present invention.

[0066] Description of reference numerals: 101, conveyor belt; 102, box body; 103, laminating mechanism; 105, first vertical plate; 106, horizontal plate; 107, image sensor; 108, pressing roller; 109, cylinder; 110, carrying plate; 111, conveying bracket; 112, first conveying roller; 113, second conveying roller; 114, conveying motor; 115, pressure sensor; 201, second vertical plate; 202, first through hole slot; 203, first Pulley; 204, gear; 205, rack; 206, cleaning rod; 207, second pulley; 208, rotating rod; 209, tensioning mechanism; 210, third vertical plate; 211, first sprocket; 212, second sprocket; 213, return spring; 214, second through hole slot; 301, air bag; 302, delivery pipe; 303, spray head; 304, liquid storage box; 305, cam; 306, first one-way valve; 307, second one-way valve. DETAILED DESCRIPTION

[0067] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0068] See also Figure 1-3 : A film laminating device, comprising: a film pressing device, a cleaning device, an auxiliary film pressing device, and a controller.

[0069] The film pressing device is arranged on the ground. The cleaning device is arranged on the film pressing device and is drivingly connected to the film pressing device. The auxiliary film pressing device is arranged on the film pressing device and is drivingly connected to the film pressing device. The controller is arranged on the side of the film pressing device and is arranged on the ground, and the controller is electrically connected to the film pressing device.

[0070] Before laminating the photovoltaic panel backplane, the user can place the photovoltaic panel backplane on the film pressing device, which can transport the photovoltaic panel backplane to the cleaning device. The cleaning device can clean the film-coated surface of the photovoltaic panel backplane driven by the film pressing device to avoid poor lamination effect due to dust sticking to the photovoltaic panel backplane during lamination. After laminating the photovoltaic panel backplane, the user can control the film pressing device to transport in the reverse direction again. At this time, the film pressing device will drive the cleaning device to stop working and return to its original position to avoid damage to the film on the photovoltaic panel backplane after the lamination is completed. At the same time, the film pressing device can also press the film on the photovoltaic panel backplane to eliminate the bubbles formed between the film and the photovoltaic panel backplane, and make the film fit tightly against the photovoltaic panel backplane. When the film pressing device is pressing the adhesive film on the back of the photovoltaic panel, the film pressing device will also drive the auxiliary film pressing device to move. After the auxiliary film pressing device is moved, it can help lubricate the film pressing device to avoid leaving marks on the adhesive film on the back of the photovoltaic panel when the film pressing device is pressing the film on the back of the photovoltaic panel. Chemical reagents beneficial to the photovoltaic panel back are evenly applied on the adhesive film on the back of the photovoltaic panel, so as to improve the working performance of the photovoltaic panel back and the adhesion effect between the adhesive film and the photovoltaic panel back.

[0071] In this way, it is achieved that before laminating the photovoltaic panel backplane, the equipment can clean the photovoltaic panel backplane to avoid gaps and bubbles during film lamination. After laminating, the equipment can also press the film on the photovoltaic panel backplane and evenly apply a layer of beneficial chemical reagents on its surface to improve the working performance of the photovoltaic panel backplane. At the same time, it can also lubricate the film pressing device of the equipment to avoid scratches on the film of the photovoltaic panel backplane.

[0072] The laminating device includes: a conveying bracket 111, a first conveying roller 112, a second conveying roller 113, a conveying motor 114, a conveyor belt 101, a box body 102, a laminating mechanism 103, two first vertical plates 105, a horizontal plate 106, two vertical slide grooves, an image sensor 107, a clamping roller 108, and a cylinder 109.

[0073] The conveying support 111 is arranged on the ground.

[0074] The first conveying roller 112 is arranged inside the conveying bracket 111, and its two ends respectively penetrate the two opposite sides of the conveying bracket 111 and extend to the outer sides of the two opposite sides of the conveying bracket 111. The side surfaces of the first conveying roller 112 are respectively rotatably connected to the two opposite sides of the conveying bracket 111, and the rotation axis is horizontally arranged.

[0075] The conveying motor 114 is arranged on the side of the conveying bracket 111 and is located on the side of the first conveying roller 112. The rotating shaft of the conveying motor 114 is fixedly connected to the outer end of the first conveying roller 112 extending to one of the side surfaces of the conveying bracket 111. The conveying motor 114 is also fixedly connected to the outer side surface of the conveying bracket 111 through a support plate. The conveying motor 114 is electrically connected to the controller.

[0076] The second conveying roller 113 is arranged inside the conveying bracket 111, on the side of the first conveying roller 112, and parallel to the first conveying roller 112. The two ends of the second conveying roller 113 respectively penetrate the two opposite sides of the conveying bracket 111 and extend to the outer sides of the two opposite sides of the conveying bracket 111. The side surfaces of the second conveying roller 113 are respectively rotatably connected to the two opposite sides of the conveying bracket 111, and the rotation axis is parallel to the axis of the first conveying roller 112.

[0077] The conveyor belt 101 is disposed inside the conveyor bracket 111 and sleeved on the first conveyor roller 112 and the second conveyor roller 113 . The inner side surface of the conveyor belt 101 contacts the side surface of the first conveyor roller 112 and the side surface of the second conveyor roller 113 .

[0078] The laminating mechanism 103 is disposed above the conveyor belt 101 and directly above the second conveying roller 113 . The laminating mechanism 103 is connected to the top surface of the conveying bracket 111 and is electrically connected to the controller.

[0079] The top surface of the box body 102 is closed and is arranged above the conveyor belt 101, between the laminating mechanism 103 and the conveying motor 114, the bottom surface of the box body 102 is fixedly connected to the top surface of the conveying bracket 111, and two discharge ports are respectively arranged on two opposite side walls of the box body 102 in the same direction as the conveying direction of the conveyor belt 101, and a plurality of dust curtains are respectively arranged on the inner top surfaces of the two discharge ports, and the lengths of the plurality of dust curtains match the heights of the two discharge ports.

[0080] The two vertical slide grooves are respectively arranged inside the box body 102 and on two inner walls inside the box body 102 which are parallel to each other and have no discharge port. The two vertical slide grooves are parallel to each other and their lengths match the lengths of the inner walls of the box body 102.

[0081] The transverse plate 106 is disposed inside the box body 102 and above the conveyor belt 101 . The two side surfaces of the transverse plate 106 are respectively disposed inside the two vertical slide grooves and are respectively slidably connected to the inner walls of the two vertical slide grooves.

[0082] The cylinder 109 is arranged above the box body 102, and the push rod of the cylinder 109 passes through the top of the box body 102 and extends into the inside of the box body 102. The end surface of the push rod of the cylinder 109 extending into the inside of the box body 102 is fixedly connected to the top surface of the transverse plate 106, the air delivery port of the cylinder 109 is connected to the air source, and the control circuit is electrically connected to the controller.

[0083] The two first vertical plates 105 are respectively arranged inside the box body 102, between the transverse plate 106 and the conveyor belt 101, the top surfaces of the two first vertical plates 105 are respectively fixedly connected to the bottom surfaces of the transverse plates 106, and there is a gap between the two first vertical plates 105, and they are parallel to each other.

[0084] The pressure roller 108 is arranged inside the box body 102 and is located between the two first vertical plates 105 and above the conveyor belt 101. The rotating shafts at both ends of the pressure roller 108 are respectively rotatably connected to the side surfaces of the two first vertical plates 105 that are close to each other, and the rotation axis is perpendicular to the telescopic rod axis of the cylinder 109.

[0085] The image sensor 107 is arranged inside the box body 102, and is located above the horizontal plate 106 and to the side of the two first vertical plates 105. The image sensor 107 is fixedly connected to the inner top surface of the box body 102, and the detection lens faces the top surface of the conveyor belt 101. The image sensor 107 is also electrically connected to the controller.

[0086] By setting the image sensor 107, the images of the photovoltaic panel backboard with the adhesive film, the photovoltaic panel backboard without the adhesive film and the empty conveyor belt 101 can be recorded together, so that when the photovoltaic panel backboard with the adhesive film moves under the image sensor 107, the controller can control the cylinder 109 to start, so as to press the pressing roller 108 tightly against the film-coated surface of the photovoltaic panel backboard with the adhesive film, so as to press the adhesive film. The coating mechanism 103 adopts the photovoltaic panel roller coating device in the prior art.

[0087] The film pressing device also includes: an anti-static dust collector.

[0088] The anti-static vacuum cleaner is arranged on the side of the conveying bracket 111 and on the ground. The suction port of the anti-static vacuum cleaner passes through the side wall of the box body 102 through a pipe and is connected to the interior of the box body 102. The anti-static vacuum cleaner is also electrically connected to the controller.

[0089] By setting up an anti-static vacuum cleaner, the dust inside the box body 102 can be sucked out when it is started, thereby ensuring a dust-free environment inside the box body 102. At the same time, it can also remove static electricity on the surface of the film coating on the back of the photovoltaic panel, so that the subsequent coating mechanism 103 can ensure a good coating effect when coating it.

[0090] The lamination device further includes: a carrying plate 110 and a pressure sensor 115 .

[0091] The interior of the carrier plate 110 is hollow and its length is twice the length of the photovoltaic panel backboard. The carrier plate 110 is arranged inside the conveyor belt 101 and below the box body 102 . The side of the carrier plate 110 is fixedly connected to the inner wall of the conveying bracket 111 .

[0092] The pressure sensor 115 is disposed inside the carrier plate 110 and fixedly connected to the inner wall of the carrier plate 110 . The detection end of the pressure sensor 115 passes through the top of the carrier plate 110 and extends to the top of the carrier plate 110 . The pressure sensor 115 is electrically connected to the controller.

[0093] The pressing roller 108 is made of corrosion-resistant material and has a smooth surface. A plurality of heating wires are disposed inside the pressing roller 108 , and the plurality of heating wires are electrically connected to the controller.

[0094] By providing a plurality of heating wires, the pressure roller 108 can make the adhesive film on the film surface of the photovoltaic panel back sheet better fit with the film surface of the photovoltaic panel back sheet.

[0095] The cleaning device includes: a second vertical plate 201, a third vertical plate 210, a first through hole slot 202, a second through hole slot 214, a first pulley 203, a second pulley 207, a gear 204, a rack 205, a cleaning rod 206, a first sprocket 211, a second sprocket 212, a rotating rod 208, a tensioning mechanism 209, and a reset spring 213.

[0096] The second vertical plate 201 is disposed above the conveying bracket 111 and between the laminating mechanism 103 and the box body 102 . The bottom surface of the second vertical plate 201 is fixedly connected to the top surface of the conveying bracket 111 .

[0097] The third vertical plate 210 is disposed above the conveying bracket 111 and between the laminating mechanism 103 and the box body 102 . The third vertical plate 210 and the second vertical plate 201 are opposite and parallel to each other, and the bottom surface is fixedly connected to the top surface of the conveying bracket 111 .

[0098] The first through hole groove 202 is vertically arranged on the second vertical plate 201 , perpendicular to the top surface of the conveyor belt 101 . A slider is arranged inside the first through hole groove 202 , and the slider is slidably connected to the inner wall of the first through hole groove 202 .

[0099] The second through hole slot 214 is vertically arranged on the third vertical plate 210 , parallel to the first through hole slot 202 , and matches the length of the first through hole slot 202 . A slider is arranged inside the second through hole slot 214 , and the slider is slidably connected to the inner wall of the second through hole slot 214 .

[0100] The rack 205 is disposed on the side of the first through hole slot 202 away from the third vertical plate 210 and above the conveyor belt 101 . The side surface of the rack 205 is fixedly connected to the side surface of the slider in the first through hole slot 202 .

[0101] The return spring 213 is vertically arranged inside the first through hole slot 202 , and the top end is fixedly connected to the inner top surface of the first through hole slot 202 , and the bottom end is fixedly connected to the top surface of the slider inside the first through hole slot 202 .

[0102] The cleaning rod 206 is arranged between the first through hole groove 202 and the second through hole groove 214, one end of the cleaning rod 206 is rotatably connected to the side of the slider inside the first through hole groove 202 away from the rack 205, the rotation axis is perpendicular to the setting direction of the first through hole groove 202, and the other end passes through the side of the slider inside the second through hole groove 214 and extends to the side of the second through hole groove 214 away from the second vertical plate 201, and the other end of the cleaning rod 206 is rotatably connected to the side of the slider inside the second through hole groove 214.

[0103] The rotating rod 208 is horizontally arranged on the side of the second vertical plate 201 close to the rack 205, and is located on the side of the rack 205. One end of the rotating rod 208 is rotatably connected to the side of the second vertical plate 201 close to the rack 205, and the rotating axis is parallel to the axis of the cleaning rod 206.

[0104] The first pulley 203 is sleeved on the rotating rod 208 and is located on the side of the rack 205 away from the second vertical plate 201 . The first pulley 203 is fixedly connected to the side surface of the rotating rod 208 .

[0105] The second pulley 207 is mounted on one end of the second conveying roller 113 extending to the outside of the conveying bracket 111, and is in the same plane as the first pulley 203. The second pulley 207 is fixedly connected to the side of one end of the second conveying roller 113 extending to the outside of the conveying bracket 111, and is connected to the first pulley 203 through a belt.

[0106] The gear 204 is sleeved on the rotating rod 208 and is located between the second vertical plate 201 and the first pulley 203 . The gear 204 is fixedly connected to the side of the rotating rod 208 and meshes with the rack 205 .

[0107] The first sprocket 211 is sleeved on the side end of the cleaning rod 206 extending to the second through hole slot 214 away from the second vertical plate 201 , and the first sprocket 211 is fixedly connected to the side end of the cleaning rod 206 extending to the second through hole slot 214 away from the second vertical plate 201 .

[0108] The second sprocket 212 is mounted on the other end of the second conveying roller 113 extending to the outside of the conveying bracket 111, and is in the same plane as the first sprocket 211. The second sprocket 212 is fixedly connected to the side of the other end of the second conveying roller 113 extending to the outside of the conveying bracket 111, and is connected to the first sprocket 211 through a chain.

[0109] The tensioning mechanism 209 is arranged on the side of the conveying bracket 111 close to the second sprocket 212, and is located between the first sprocket 211 and the second sprocket 212. The tensioning mechanism 209 is fixedly connected to the side of the conveying bracket 111 close to the second sprocket 212, and the tensioning wheel of the tensioning mechanism 209 is engaged with the chain connecting the first sprocket 211 and the second sprocket 212.

[0110] By setting the first pulley 203, the second pulley 207, the gear 204, the rack 205, and the cleaning rod 206, the cleaning rod 206 can adjust its position by following the rotation direction of the gear 204 driven by the rack 205. When the gear 204 rotates forward, the rack 205 drops, so that the cleaning rod 206 can move to a suitable processing position, and the gear 204 flips the rack 205 to rise, so that the cleaning rod 206 can be restored, so as to avoid the cleaning rod 206 being in the processing position and leaving scratches on the film surface on the back plate of the photovoltaic panel that has been coated. The setting of the tensioning mechanism 209 can ensure that the chain of the first sprocket 211 and the second sprocket 212 can always maintain a suitable tension. Thereby preventing the chain from falling off the first sprocket 211 and the second sprocket 212, or losing working performance. At the same time, the tensioning mechanism 209 adopts the tensioning mechanism 209 of the variable position used for the chain in the prior art.

[0111] The brushes on the cleaning rod 206 are made of nylon.

[0112] The brushes on the cleaning rod 206 are made of nylon material, which can ensure that the brushes have an appropriate degree of hardness and softness, thereby avoiding scratches on the film surface of the photovoltaic panel back plate when cleaning.

[0113] The auxiliary film pressing device includes: an air bag 301 , a conveying pipe 302 , three spray heads 303 , a liquid storage box 304 , a cam 305 , a first one-way valve 306 , and a second one-way valve 307 .

[0114] The airbag 301 is disposed inside the box body 102 , between the rotation axis of the transverse plate 106 and the pressing roller 108 , and the airbag 301 is fixedly connected to the bottom surface of the transverse plate 106 .

[0115] The cam 305 is disposed inside the box body 102 and is directly below the airbag 301 . The cam 305 is sleeved on the rotating shaft of the pressing roller 108 . The cam 305 is fixedly connected to the rotating shaft of the pressing roller 108 and is in contact with the airbag 301 .

[0116] The liquid storage box 304 is arranged at the side of the box body 102 , between the transverse plate 106 and the conveyor belt 101 , and the outer side of the liquid storage box 304 is fixedly connected to the outer side of the box body 102 . The liquid storage box 304 contains a silane coupling agent solution.

[0117] The first one-way valve 306 is arranged inside the box body 102 and below the transverse plate 106. The airbag 301 is close to the side of the liquid storage box 304. One end of the first one-way valve 306 passes through the side of the airbag 301 and is connected to the interior of the airbag 301, and the other end passes through the side of the box body 102 and the side of the liquid storage box 304 through a pipe and is connected to the interior of the liquid storage box 304.

[0118] One end of the conveying pipe 302 is closed and is disposed inside the box body 102 , between the transverse plate 106 and the pressing roller 108 . The side surface of the conveying pipe 302 is fixedly connected to the bottom surface of the transverse plate 106 .

[0119] The second one-way valve 307 is arranged inside the box body 102, below the transverse plate 106, and on the side of the airbag 301 close to the delivery tube 302. One end of the second one-way valve 307 passes through the side of the airbag 301 and is connected to the inside of the airbag 301, and the other end is connected to the open end of the delivery tube 302 through a hose.

[0120] The three spray heads 303 are respectively arranged inside the box body 102 and are respectively located below the transverse plate 106. The input pipes of the three spray heads 303 respectively penetrate the sides of the conveying pipe 302 and are respectively connected to the inside of the conveying pipe 302. The spraying directions of the three spray heads 303 are respectively facing the sides of the clamping roller 108, and the distance between the two adjacent spray heads 303 can divide the clamping roller 108 into three equal parts.

[0121] By arranging the airbag 301, the delivery pipe 302, the three spray heads 303, the liquid storage tank 304, the cam 305, the first one-way valve 306, and the second one-way valve 307, the cam 305 can continuously squeeze and move away from the airbag 301 when the pressing roller 108 rotates, so that the airbag 301 can continuously suck the silane coupling agent solution inside the liquid storage tank 304 into the airbag 301 through the first one-way valve 306, and at the same time, enter the delivery pipe 302 through the airbag 301 and the second one-way valve 307, and finally spray it onto the surface of the pressing roller 108 through the three spray heads 303. The silane coupling agent solution on the surface of the pressing roller 108 can not only lubricate the surface of the pressing roller 108 to a certain extent to avoid excessive friction with the film on the film-coated surface of the photovoltaic panel back sheet, but also apply a layer of silane coupling agent solution to the surface of the film on the film-coated surface of the back sheet to improve the working performance of the film.

[0122] The three spray heads 303 are respectively configured as swing-type spray heads 303 , and the swinging area can completely cover the surface of the pressure roller 108 .

[0123] The three spray heads 303 are respectively configured as swing-type spray heads 303 , so that the three spray heads 303 can evenly spray the silane coupling agent solution on various positions of the pressing roller 108 , thereby preventing the silane coupling agent solution from being unevenly applied when the pressing roller 108 presses the film on the film-coated surface of the photovoltaic panel backplane.

[0124] A photovoltaic adhesive film includes: the photovoltaic adhesive film is an EVA adhesive film.

[0125] Working process: When the user wants to coat the photovoltaic panel backplane, the user first places the photovoltaic panel backplane on the conveyor belt 101, and controls the start of the anti-static vacuum cleaner and the forward start of the conveying motor 114 through the controller. After the forward start of the conveying motor 114, the conveying motor 114 drives the first conveying roller 112 to rotate forward, and the forward rotation of the first conveying roller 112 drives the conveyor belt 101 to transport forward, and the forward conveyor belt 101 drives the photovoltaic panel backplane through one of the discharge ports of the box body 102 into the interior of the box body 102, and drives the second conveying roller 113 to rotate forward.

[0126] The second conveying roller 113 rotates forwardly to drive the second pulley 207 and the second sprocket 212 to rotate forwardly, and the second pulley 207 rotates forwardly through the first pulley 203 of the belt to rotate forwardly, and the first pulley 203 rotates forwardly to drive the rotating rod 208 to rotate forwardly, and the rotating rod 208 rotates forwardly to drive the gear 204 to rotate forwardly, and the gear 204 rotates forwardly to drive the rack 205 to move downward, and the rack 205 moves downward to drive the slider inside the first through hole slot 202 to move downward, and the slider inside the first through hole slot 202 moves downward to pull the reset spring 213 to extend, and drives the cleaning rod 206 to move downward, until the slider inside the first through hole slot 202 moves to the lowest point inside the first through hole slot 202, and drives the cleaning rod 206 to move to a suitable The working position is reached, and when the slider inside the first through hole groove 202 moves to the lowest point inside the first through hole groove 202, the return spring 213 will stop being pulled downward by the slider inside the first through hole groove 202, and the return spring 213 will retract when it stops being pulled. The retraction of the return spring 213 drives the slider inside the first through hole groove 202 to move upward, and the slider inside the first through hole groove 202 moves upward to drive the rack 205 to move upward. The rack 205 moves upward to mesh with the gear 204 again, and when the rack 205 meshes with the gear 204 again, the positive rotation of the gear 204 will drive the rack 205 to move downward again, so as to ensure that the cleaning rod 206 can always be in a suitable processing position.

[0127] The cleaning rod 206 moves downward, driving the slider inside the second through hole slot 214 to move downward, and driving the first sprocket 211 to move downward, and the first sprocket 211 moves downward, driving the chain downward, and the chain moves downward, driving the sprocket of the connected tensioning mechanism 209 to move downward together, so that the chain can always be in a workable state and avoid falling off. The tensioning mechanism 209 adopts the variable position tensioning mechanism 209 used in the prior art for the chain.

[0128] When the second sprocket 212 rotates, the second sprocket 212 drives the chain to rotate, and the chain drives the sprocket of the tensioning mechanism 209 to rotate, and drives the first sprocket 211 to rotate, and the first sprocket 211 drives the cleaning rod 206 to rotate.

[0129] When the photovoltaic panel backplane enters the box body 102 through one of the discharge ports of the box body 102 and the anti-static vacuum cleaner is started, the anti-static vacuum cleaner can suck the dust on the photovoltaic panel backplane inside the box body 102 into the inside thereof, and eliminate the static electricity of the photovoltaic panel backplane inside the box body 102. At the same time, the conveyor belt 101 will continue to drive the photovoltaic panel backplane to leave the box body 102 through another feed port of the box body 102 during forward conveyance, and drive the photovoltaic panel backplane to move under the cleaning rod 206. At this time, the rotating cleaning rod 206 can completely clean the gaps that may exist on the surface of the photovoltaic panel backplane and the remaining dust on the surface. Then, the conveyor belt 101 continues to drive the photovoltaic panel backplane into the film coating mechanism 103 during forward conveyance to complete the film coating. The film coating mechanism 103 adopts the photovoltaic panel roller film coating device in the prior art.

[0130] When the photovoltaic panel back sheet is coated, the user can control the conveying motor 114 to start in reverse through the controller. When the conveying motor 114 starts in reverse, the conveying motor 114 starts in reverse and drives the first conveying roller 112 to reverse, and the first conveying roller 112 reverses and drives the conveying belt 101 to transport in reverse, and the conveying belt 101 reverses and drives the photovoltaic panel back sheet to move in reverse, and passes under the cleaning rod 206 again, and passes through another discharge port of the box body 102 to enter the box body 102, and the reverse conveying of the conveying belt 101 also drives the second conveying roller 113 to reverse.

[0131] The second conveying roller 113 reverses and drives the second pulley 207 and the second sprocket 212 to reverse. The second pulley 207 reverses through the first pulley 203. The first pulley 203 reverses and drives the rotating rod 208 to reverse. The rotating rod 208 reverses and drives the gear 204 to reverse.

[0132] When the gear 204 is reversed, it will drive the rack 205 meshing with the gear 204 to move upward again. The rack 205 moves upward and drives the slider inside the first through hole slot 202 to move upward. The slider inside the first through hole slot 202 moves upward to push the reset spring 213 to retract, and drives the cleaning rod 206 to move upward until the slider inside the first through hole slot 202 returns to its original position and the reset spring 213 is in the initial state. The cleaning rod 206 moves upward and drives the slider inside the second through hole slot 214 to move upward, and drives the first sprocket 211 to move upward. The first sprocket 211 moves upward and drives the chain to move upward. The chain moves upward and drives the sprocket of the connected tensioning mechanism 209 to move upward together, so that the chain can always be in a working state to avoid falling off. The tensioning mechanism 209 adopts the variable position tensioning mechanism 209 used in the prior art for the chain.

[0133] When the second sprocket 212 rotates, the second sprocket 212 drives the chain to rotate, and the chain drives the sprocket of the tensioning mechanism 209 to rotate, and drives the first sprocket 211 to rotate, and the first sprocket 211 drives the cleaning rod 206 to rotate.

[0134] At this time, when the photovoltaic panel backplane moves in the reverse direction to the bottom of the cleaning rod 206 and the cleaning rod 206 returns to its original position, the cleaning rod 206 will not clean the surface of the photovoltaic panel backplane, thereby avoiding damage to the film that has been coated on the surface of the photovoltaic panel backplane.

[0135] When the photovoltaic panel backplane moving in the opposite direction enters the box body 102 again through another discharge port of the box body 102, when the image sensor 107 inside the box body 102 detects that the photovoltaic panel backplane with the film enters the box body 102, the image sensor 107 will transmit the image signal to the controller. After the controller receives and analyzes the image signal, the controller will start the cylinder 109 to extend and the heating wire inside the pressing roller 108 to start heating. The telescopic rod of the cylinder 109 moves downward to drive the horizontal plate 106 to move downward. The horizontal plate 106 moves downward to drive the two vertical plates, the airbag 301, and the conveying pipe 302 to move downward. The airbag 301 moves downward to drive the first one-way valve 306 and the second one-way valve 307 to move downward. The conveying pipe 302 moves downward to drive the three spray heads 303 to move downward. The two vertical plates move downward to drive the pressing roller 108 and the cam 305 to move downward until the pressing roller 108 can be close to the film-coated surface of the photovoltaic panel backplane.

[0136] When the pressure roller 108 is in close contact with the film surface of the photovoltaic panel back, the photovoltaic panel back moving in the opposite direction will drive the pressure roller 108 to rotate. The rotation of the pressure roller 108 drives the cam 305 to rotate, and can press the film on the film surface of the photovoltaic panel back. At the same time, after the heating wire inside the pressure roller 108 starts heating, the pressure roller 108 can further assist the film to better adhere to the photovoltaic panel back.

[0137] At the same time, when the photovoltaic panel backplane slowly moves in the reverse direction, the position of the film surface of the photovoltaic panel backplane can be automatically changed, so that each part of the film surface of the photovoltaic panel backplane can be contacted and pressed by the pressing roller 108, so as to make the film on the film surface of the photovoltaic panel backplane tightly attached to the photovoltaic panel backplane.

[0138] When the pressure roller 108 is in close contact with the coated surface of the photovoltaic panel backplane, the photovoltaic panel backplane will be subjected to the pressure of the pressure roller 108 and move downward, and apply pressure to the detection part of the pressure sensor 115 extending from the inside of the carrier plate 110 to the top of the carrier plate 110. After receiving the pressure, the pressure sensor 115 can transmit the pressure data to the controller, so as to facilitate the user to check the pressure applied by the pressure roller 108 and avoid damaging the photovoltaic panel backplane.

[0139] When the cam 305 rotates, the cam 305 can continuously contact and move away from the airbag 301. When the cam 305 contacts the airbag 301, the airbag 301 is squeezed by the cam 305 and shrinks. When the airbag 301 shrinks, the silane coupling agent solution inside the airbag 301 can be transported to the three spray heads 303 through the second one-way valve 307 and the delivery pipe 302. Then the three spray heads 303 will spray the silane coupling agent solution onto the surface of the pressure roller 108, so that when the pressure roller 108 contacts the film surface of the photovoltaic panel backboard, the pressure roller 108 will not generate excessive friction between the pressure roller 108 and the film surface of the photovoltaic panel backboard, thereby damaging the film of the photovoltaic panel backboard. When the pressure roller 108 rotates, the pressure roller 108 can also evenly apply the silane coupling agent solution on the film surface of the photovoltaic panel backboard, so as to improve the working performance of the photovoltaic panel backboard. When the cam 305 moves away from the airbag 301, the airbag 301 is squeezed by the stop cam 305 and thus recovers. As the cylinder 109 extends to drive the transverse plate 106 to move downward to the lowest point, the transverse plate 106 will also drive the airbag 301 to move to the lowest point. When the airbag 301 moves to the lowest point, its height will be lower than that of the liquid storage tank 304. At this time, the recovery of the airbag 301 can transport the silane coupling agent solution in the liquid storage tank 304 to the inside of the airbag 301 through the first one-way valve 306 and the pipeline until the silane coupling agent solution flows out of the airbag 301 again.

[0140] When the workpiece leaves the box body 102 again through the discharge port of one of the boxes 102 driven by the conveyor belt 101 of the conveyor belt, the image sensor 107 will transmit the image signal to the controller again. After receiving the image, the controller controls the cylinder 109 to retract. When the cylinder 109 retracts, the telescopic rod of the cylinder 109 moves upward to drive the horizontal plate 106 to move upward. The horizontal plate 106 moves upward to drive the two vertical plates, the airbag 301, and the conveying pipe 302 to move upward. The airbag 301 moves upward to drive the first check valve 306 and the second check valve 307 to move upward. The conveying pipe 302 moves upward to drive the three spray heads 303 to move upward. The two vertical plates move upward to drive the pressing roller 108 and the cam 305 to move upward. At this time, the user can collect the photovoltaic panel backboard that has been coated and place the next photovoltaic panel backboard waiting for coating on the surface of the conveyor belt 101 of the conveyor belt again.

[0141] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the scope of protection of the present invention.

Claims

1. A coating device, characterized in that: include: Laminating device, cleaning device, auxiliary laminating device, controller; The film pressing device is arranged on the ground; the cleaning device is arranged on the film pressing device and is drivingly connected to the film pressing device; the auxiliary film pressing device is arranged on the film pressing device and is drivingly connected to the film pressing device; the controller is arranged on the side of the film pressing device and is arranged on the ground, and the controller is electrically connected to the film pressing device.

2. A coating device according to claim 1, characterized in that: The laminating device comprises: a conveying bracket (111), a first conveying roller (112), a second conveying roller (113), a conveying motor (114), a conveyor belt (101), a box body (102), a laminating mechanism (103), two first vertical plates (105), a horizontal plate (106), two vertical slides, an image sensor (107), a pressing roller (108), and a cylinder (109); The transmission support (111) is arranged on the ground; The first conveying roller (112) is arranged inside the conveying bracket (111), and two ends thereof respectively penetrate two opposite side portions of the conveying bracket (111) and extend to the outer sides of two opposite side portions of the conveying bracket (111), and the side portions of the first conveying roller (112) are respectively rotatably connected to the two opposite side portions of the conveying bracket (111), and the rotation axis is arranged transversely; The conveying motor (114) is arranged on the side of the conveying support (111) and is located on the side of the first conveying roller (112); the rotating shaft of the conveying motor (114) is fixedly connected to an end of the first conveying roller (112) extending to the outer side of one side of the conveying support (111); the conveying motor (114) is also fixedly connected to the outer side of the conveying support (111) through a support plate; and the conveying motor (114) is electrically connected to the controller; The second conveying roller (113) is arranged inside the conveying bracket (111), on the side of the first conveying roller (112), and is parallel to the first conveying roller (112); two ends of the second conveying roller (113) respectively penetrate two opposite side portions of the conveying bracket (111) and extend to the outer sides of the two opposite side portions of the conveying bracket (111); the side surfaces of the second conveying roller (113) are respectively rotatably connected to the two opposite side portions of the conveying bracket (111), and the rotation axis is parallel to the axis of the first conveying roller (112); The conveyor belt (101) is arranged inside the conveyor support (111) and is sleeved on the first conveyor roller (112) and the second conveyor roller (113); the inner side surface of the conveyor belt (101) is in contact with the side surface of the first conveyor roller (112) and the side surface of the second conveyor roller (113); The laminating mechanism (103) is arranged above the conveyor belt (101) and is located directly above the second conveying roller (113); the laminating mechanism (103) is connected to the top surface of the conveying bracket (111) and is electrically connected to the controller; The top surface of the box body (102) is closed and is arranged above the conveyor belt (101) and between the laminating mechanism (103) and the conveying motor (114). The bottom surface of the box body (102) is fixedly connected to the top surface of the conveying bracket (111). Two discharge ports are respectively arranged on two opposite side walls of the box body (102) in the same direction as the conveying direction of the conveyor belt (101). A plurality of dust-proof curtains are respectively arranged on the inner top surfaces of the two discharge ports. The lengths of the plurality of dust-proof curtains match the heights of the two discharge ports. The two vertical slide grooves are respectively arranged inside the box body (102), and are respectively arranged on two inner walls inside the box body (102) which are parallel to each other and have no discharge port, the two vertical slide grooves are parallel to each other, and the lengths thereof match the lengths of the inner walls of the box body (102); The transverse plate (106) is arranged inside the box body (102) and above the conveyor belt (101); the two side surfaces of the transverse plate (106) are respectively arranged inside the two vertical slide grooves and are respectively slidably connected to the inner walls of the two vertical slide grooves; The cylinder (109) is arranged above the box body (102), and a push rod of the cylinder (109) passes through the top of the box body (102) and extends into the interior of the box body (102), an end surface of the push rod of the cylinder (109) extending into the interior of the box body (102) is fixedly connected to the top surface of the transverse plate (106), an air delivery port of the cylinder (109) is connected to an air source, and a control circuit is electrically connected to a controller; The two first vertical plates (105) are respectively arranged inside the box body (102), between the transverse plate (106) and the conveyor belt (101), the top surfaces of the two first vertical plates (105) are respectively fixedly connected to the bottom surfaces of the transverse plates (106), and there is a spacing between the two first vertical plates (105), and the two first vertical plates (105) are parallel to each other; The pressing roller (108) is arranged inside the box body (102) and between the two first vertical plates (105) and above the conveyor belt (101); the rotating shafts at both ends of the pressing roller (108) are respectively rotatably connected to the side surfaces of the two first vertical plates (105) that are close to each other, and the rotating axis is perpendicular to the axis of the telescopic rod of the cylinder (109); The image sensor (107) is arranged inside the box body (102) and is located above the transverse plate (106) and to the side of the two first vertical plates (105). The image sensor (107) is fixedly connected to the inner top surface of the box body (102), and the detection lens faces the top surface of the conveyor belt (101). The image sensor (107) is also electrically connected to the controller.

3. A coating device according to claim 2, characterized in that: The film pressing device also includes: an anti-static dust collector; The anti-static vacuum cleaner is arranged on the side of the conveying bracket (111) and on the ground. The suction port of the anti-static vacuum cleaner passes through the side wall of the box body (102) through a pipe and is connected to the interior of the box body (102). The anti-static vacuum cleaner is also electrically connected to the controller.

4. A coating device according to claim 2, characterized in that: The lamination device further comprises: a carrying plate (110) and a pressure sensor (115); The interior of the carrier plate (110) is hollow, and its length is twice the length of the photovoltaic panel back plate. The carrier plate (110) is arranged inside the conveyor belt (101) and below the box body (102). The side surface of the carrier plate (110) is fixedly connected to the inner wall of the conveying bracket (111); The pressure sensor (115) is arranged inside the carrier plate (110) and is fixedly connected to the inner wall of the carrier plate (110); the detection end of the pressure sensor (115) passes through the top of the carrier plate (110) and extends to the top of the carrier plate (110); the pressure sensor (115) is electrically connected to the controller.

5. A coating device according to claim 2, characterized in that: The pressing roller (108) is made of a corrosion-resistant material and has a smooth surface. A plurality of heating wires are also arranged inside the pressing roller (108), and the plurality of heating wires are electrically connected to the controller.

6. A coating device according to claim 2, characterized in that: The cleaning device comprises: a second vertical plate (201), a third vertical plate (210), a first through hole slot (202), a second through hole slot (214), a first belt wheel (203), a second belt wheel (207), a gear (204), a rack (205), a cleaning rod (206), a first sprocket (211), a second sprocket (212), a rotating rod (208), a tensioning mechanism (209), and a reset spring (213); The second vertical plate (201) is arranged above the conveying bracket (111) and between the laminating mechanism (103) and the box body (102); the bottom surface of the second vertical plate (201) is fixedly connected to the top surface of the conveying bracket (111); The third vertical plate (210) is arranged above the conveying bracket (111) and between the laminating mechanism (103) and the box body (102); the third vertical plate (210) and the second vertical plate (201) are opposite and parallel to each other, and the bottom surface is fixedly connected to the top surface of the conveying bracket (111); The first through hole groove (202) is vertically arranged on the second vertical plate (201) and is perpendicular to the top surface of the conveyor belt (101); a sliding block is arranged inside the first through hole groove (202), and the sliding block is slidably connected to the inner wall of the first through hole groove (202); The second through hole groove (214) is vertically arranged on the third vertical plate (210), parallel to the first through hole groove (202), and matches the length of the first through hole groove (202); a sliding block is arranged inside the second through hole groove (214), and the sliding block is slidably connected to the inner wall of the second through hole groove (214); The rack (205) is arranged on the side of the first through hole groove (202) away from the third vertical plate (210) and above the conveyor belt (101), and the side surface of the rack (205) is fixedly connected to the side surface of the slider in the first through hole groove (202); The return spring (213) is vertically arranged inside the first through hole groove (202), and the top end is fixedly connected to the internal top surface of the first through hole groove (202), and the bottom end is fixedly connected to the top surface of the slider inside the first through hole groove (202); The cleaning rod (206) is arranged between the first through hole groove (202) and the second through hole groove (214), one end of the cleaning rod (206) is rotatably connected to the side of the slider inside the first through hole groove (202) away from the rack (205), the rotation axis is perpendicular to the setting direction of the first through hole groove (202), the other end passes through the side of the slider inside the second through hole groove (214), and extends to the side of the second through hole groove (214) away from the second vertical plate (201), the other end of the cleaning rod (206) is rotatably connected to the side of the slider inside the second through hole groove (214); The rotating rod (208) is arranged laterally on the side of the second vertical plate (201) close to the rack (205), and is located on the side of the rack (205); one end of the rotating rod (208) is rotatably connected to the side of the second vertical plate (201) close to the rack (205), and the rotation axis is parallel to the axis of the cleaning rod (206); The first belt wheel (203) is sleeved on the rotating rod (208) and is located on the side of the rack (205) away from the second vertical plate (201), and the first belt wheel (203) is fixedly connected to the side of the rotating rod (208); The second pulley (207) is sleeved on one end of the second conveying roller (113) extending to the outside of the conveying bracket (111) and is in the same plane as the first pulley (203); the second pulley (207) is fixedly connected to the side surface of one end of the second conveying roller (113) extending to the outside of the conveying bracket (111), and is connected to the first pulley (203) via a belt; The gear (204) is sleeved on the rotating rod (208) and is located between the second vertical plate (201) and the first pulley (203); the gear (204) is fixedly connected to the side of the rotating rod (208) and meshes with the rack (205); The first sprocket (211) is sleeved on the side end of the cleaning rod (206) extending to the second through hole slot (214) away from the second vertical plate (201), and the first sprocket (211) is fixedly connected to the side of the cleaning rod (206) extending to the second through hole slot (214) away from the second vertical plate (201); The second sprocket (212) is sleeved on the other end of the second conveying roller (113) extending to the outside of the conveying bracket (111) and is in the same plane as the first sprocket (211); the second sprocket (212) is fixedly connected to the side surface of the other end of the second conveying roller (113) extending to the outside of the conveying bracket (111), and is connected to the first sprocket (211) through a chain; The tensioning mechanism (209) is arranged on the side of the conveying bracket (111) close to the second sprocket (212), and is located between the first sprocket (211) and the second sprocket (212). The tensioning mechanism (209) is fixedly connected to the side of the conveying bracket (111) close to the second sprocket (212), and the tensioning wheel of the tensioning mechanism (209) is meshed with the chain connecting the first sprocket (211) and the second sprocket (212).

7. A coating device according to claim 6, characterized in that: The plurality of brushes on the cleaning rod (206) are made of nylon.

8. A coating device according to claim 5, characterized in that: The auxiliary film pressing device comprises: an air bag (301), a conveying pipe (302), three spray heads (303), a liquid storage box (304), a cam (305), a first one-way valve (306), and a second one-way valve (307); The airbag (301) is arranged inside the box body (102), between the transverse plate (106) and the rotating shaft of the pressing roller (108), and the airbag (301) is fixedly connected to the bottom surface of the transverse plate (106); The cam (305) is arranged inside the box body (102) and is located directly below the airbag (301). The cam (305) is sleeved on the rotating shaft of the pressing roller (108). The cam (305) is fixedly connected to the rotating shaft of the pressing roller (108) and is in contact with the airbag (301). The liquid storage box (304) is arranged on the side of the box body (102), between the transverse plate (106) and the conveyor belt (101), the outer side surface of the liquid storage box (304) is fixedly connected to the outer side surface of the box body (102), and the liquid storage box (304) contains a silane coupling agent solution; The first one-way valve (306) is arranged inside the box body (102) and below the transverse plate (106). The airbag (301) is close to the side of the liquid storage box (304). One end of the first one-way valve (306) passes through the side of the airbag (301) and is in communication with the inside of the airbag (301). The other end of the first one-way valve (306) passes through the side of the box body (102) and the side of the liquid storage box (304) through a pipeline and is in communication with the inside of the liquid storage box (304). One end of the conveying pipe (302) is closed and is arranged inside the box body (102), between the transverse plate (106) and the pressing roller (108), and the side surface of the conveying pipe (302) is fixedly connected to the bottom surface of the transverse plate (106); The second one-way valve (307) is arranged inside the box body (102), below the transverse plate (106), and on the side of the airbag (301) close to the delivery tube (302); one end of the second one-way valve (307) passes through the side of the airbag (301) and is connected to the inside of the airbag (301), and the other end is connected to the open end of the delivery tube (302) through a hose; The three spray heads (303) are respectively arranged inside the box body (102) and are respectively located below the transverse plate (106). The input pipes of the three spray heads (303) respectively penetrate the side of the conveying pipe (302) and are respectively connected to the inside of the conveying pipe (302). The spraying directions of the three spray heads (303) are respectively facing the side of the pressing roller (108), and the distance between the two adjacent spray heads (303) can divide the pressing roller (108) into three equal parts.

9. A coating device according to claim 8, characterized in that: The three spray heads (303) are respectively configured as swing-type spray heads (303), and the swinging area is capable of completely covering the surface of the pressing roller (108).

10. A photovoltaic adhesive film applied to the film coating device according to any one of claims 1 to 9, characterized in that: include: The photovoltaic adhesive film is an EVA adhesive film.

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