Double-sided coating device for photovoltaic glass

Abstract

The present invention belongs to the technical field of photovoltaic glass processing, and in particular, relates to a double-sided coating device for photovoltaic glass. A double-sided coating device for photovoltaic glass comprises a feeding conveyor, a discharging conveyor, a drying box, two coating machines, two conveyors, and a flipping mechanism; the feeding conveyor and the discharging conveyor are respectively arranged at the two ends of the coating device, and a drying box is arranged at the top of the discharging conveyor, and the coating machines are installed at the ends of the feeding conveyor and the discharging conveyor close to each other, and conveyors are arranged on the sides facing each other of the two coating machines, and the flipping mechanism is installed between the two conveyors. The present invention reduces the additional drying equipment and the longer assembly line required in the traditional production line by combining the flipping mechanism with the heating and drying function, thereby shortening the length of the overall production line and saving production space, and the heating chamber in the flipping mechanism can effectively heat and dry the coated photovoltaic glass.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaic glass processing, and in particular relates to a double-sided coating device for photovoltaic glass. Background Art

[0002] Photovoltaic glass, as an important solar cell component material, is widely used in the field of solar power generation, especially in solar photovoltaic panels. It not only needs to have good light transmittance to ensure that sunlight can effectively penetrate and reach the solar cell, but also requires certain mechanical strength and weather resistance to adapt to the complex and changeable outdoor environmental conditions. In order to improve the photoelectric conversion efficiency and service life of photovoltaic glass, it is usually coated on its surface. Coating can not only improve the light transmittance of photovoltaic glass and reduce reflection loss, but also enhance its anti-fouling ability and corrosion resistance.

[0003] However, existing double-sided coating machines have some problems, especially in the process of turning over after coating one side, which usually requires a longer production line and additional drying equipment to ensure the stability and quality of the coating layer. This not only increases production costs, but also extends the overall length of the production line, occupies more production space, and reduces production efficiency.

[0004] In order to solve the problems of the prior art, the present application provides a double-sided coating device for photovoltaic glass. Summary of the invention

[0005] In view of the problem that double-sided coating machines in the prior art require longer production lines and additional drying equipment, which increases production costs and occupies a large space, the present invention proposes a double-sided coating device for photovoltaic glass.

[0006] The technical solution of the present invention is to disclose a double-sided coating device for photovoltaic glass, comprising a feeding conveyor, a discharging conveyor, a drying box, two coating machines, two conveyors, and a flipping mechanism; the feeding conveyor and the discharging conveyor are respectively arranged at two ends of the coating device, a drying box is arranged at the top of the discharging conveyor, the coating machines are installed at the ends of the feeding conveyor and the discharging conveyor close to each other, conveyors are arranged on the sides facing each other of the two coating machines, and the flipping mechanism is installed between the two conveyors;

[0007] The flipping mechanism includes a support frame, a support shaft, a hollow tube, a triangular support member, a stepping drive motor, a support tube, and a connecting flange; the support shafts are installed on both sides of the top of the support frame, the hollow tube is connected between the two support shafts, the triangular support members are evenly inserted into the hollow tube in the circumferential direction, a rectangular heating chamber is formed between each two adjacent triangular support members, the hollow tube is provided with heat conduction holes at intervals in the circumferential direction, the support shaft is hollow inside, the stepping drive motor is installed on the support frame, the stepping drive motor is drivingly connected to the support shaft on one side, the support tube is installed on one side of the support frame, the support tube is sleeved on the outside of the support shaft, and the connecting flange is connected to the support tube.

[0008] Furthermore, two blocking bars are provided between each two adjacent triangular support members, and the two blocking bars are respectively connected to the two ends of the hollow tube.

[0009] Furthermore, the height of the feeding conveyor is higher than that of the discharging conveyor, and the height of the coating machine on one side close to the feeding conveyor is higher than that of the coating machine on the other side.

[0010] Furthermore, each of the triangular support members is provided with a fixing mechanism, which includes a cylinder body, a guide seat, a piston rod, an elastic member, a roller, a suction cup, a connecting frame, and an arc-shaped top pressure rod; the cylinder body and the guide seat are both installed on one side of the interior of the triangular support member, the cylinder body is provided with the piston rod, the piston rod and the guide seat are slidably matched, the elastic member is connected between the piston rod and the guide seat, the roller is provided at one end of the piston rod away from the cylinder body, a plurality of suction cups are slidably provided on one side of the triangular support member, the plurality of suction cups are connected by the connecting frame, the plurality of suction cups are connected with an air pipe, the air pipe is connected to the cylinder body, a fan-shaped frame is installed on the top of the support frame, the fan-shaped frame is connected to the arc-shaped top pressure rod, one end of the arc-shaped top pressure rod is provided with an inclined surface, and the roller is in contact with the arc-shaped top pressure rod.

[0011] Furthermore, a stopper is connected to the side surface of one end of the triangular support member facing the hollow tube, and a vent hole is provided on the stopper.

[0012] Furthermore, a ball is rollingly provided on a side of the triangular support member away from the suction cup.

[0013] Furthermore, a wedge plate is connected to the connecting frame, and a push rod is connected to one end of the piston rod close to the cylinder body, and the push rod is in contact with and cooperates with the wedge plate.

[0014] Furthermore, a connecting rod is provided inside the support shaft away from the support tube, and an arc-shaped baffle is connected to one end of the connecting rod facing the hollow tube, and the outer wall of the arc-shaped baffle is in contact with the inner wall of the lower half of the hollow tube. A connecting piece is installed on the support frame, and the connecting piece is connected to the connecting rod.

[0015] Furthermore, a positioning ring is connected between the front and rear sides of the outer side of the triangular support member, and the support frame is connected to an arc-shaped wind shield plate surrounding the outer side of the upper part of the triangular support member through a bracket, and the top of the arc-shaped wind shield plate is connected to a return air duct, and an electric roller is provided at one end of the arc-shaped wind shield plate close to the feed conveyor, and a proximity sensor is provided on the side of the top of the support frame close to the electric roller.

[0016] Beneficial effects: 1. The present invention combines the turning mechanism with the heating and drying function, thereby reducing the additional drying equipment and the longer assembly line required in the traditional production line, thereby shortening the length of the overall production line and saving production space. The heating chamber in the turning mechanism can effectively heat and dry the coated photovoltaic glass. At the same time, through the design of the arc-shaped wind shield and the return air duct, the hot air is recycled, the energy utilization rate is further improved, and the effect of energy saving and emission reduction is achieved.

[0017] 2. The present invention ensures that the coated surface can always maintain effective contact with the hot air during the glass flipping process through the fixing mechanism, and can avoid direct contact between the coated surface and the triangular support even under the action of gravity, thereby reducing the risk of coating adhesion. At the same time, by controlling the precise movement of the stepping drive, the photovoltaic glass is accurately positioned in the heating chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the turning mechanism of the present invention.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the arc-shaped wind shield and the return air duct of the present invention.

[0021] Figure 4 It is a schematic diagram of a first partial three-dimensional structure of the turning mechanism of the present invention.

[0022] Figure 5 It is a schematic diagram of a second partial three-dimensional structure of the turning mechanism of the present invention.

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the triangular support member, the ball and the retaining frame of the present invention.

[0024] Figure 7It is a schematic diagram of the first three-dimensional structure of the fixing mechanism of the present invention.

[0025] Figure 8 It is a schematic diagram of a second three-dimensional structure of the fixing mechanism of the present invention.

[0026] Fig. 9 It is a schematic diagram of the three-dimensional structure of the wedge plate and the push rod of the present invention.

[0027] Fig.10 It is a three-dimensional structural schematic diagram of the connecting piece, connecting rod and arc-shaped baffle of the present invention.

[0028] Names of the numbers in the figure: 100-feeding conveyor, 101-discharging conveyor, 2-coating machine, 3-transmission machine, 4-turning mechanism, 41-support frame, 42-support shaft, 43-hollow tube, 44-slot, 441-plug-in, 45-triangular support, 46-heating chamber, 47-heat conduction hole, 48-stepping drive machine, 49-support tube, 491-connecting flange, 51-cylinder body, 52-guide seat, 53-piston rod, 54-roller, 55- Suction cup, 56-connecting frame, 57-air pipe, 58-elastic part, 59-fan-shaped frame, 591-arc-shaped top pressure rod, 592-inclined surface, 6-wedge plate, 7-top rod, 8-connecting piece, 9-connecting rod, 10-arc-shaped baffle plate, 11-positioning ring, 12-arc-shaped wind shield plate, 121-electric roller, 13-return air duct, 14-ball, 15-retaining frame, 16-limiting hole, 17-drying box, 18-proximity sensor, 19-stopper, 20-blocking strip. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the present invention, rather than implying that each embodiment of the present invention must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0031] In the description of the present application, the terms “first” and “second” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0032] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0034] Embodiment 1: A double-sided coating device for photovoltaic glass, see Figure 1-Figure 10 , including a feeding conveyor 100, a discharging conveyor 101, a drying box 17, two coating machines 2, two conveyors 3, and a turning mechanism 4; the feeding conveyor 100 and the discharging conveyor 101 are respectively arranged at the left and right ends of the coating device, and a drying box 17 is arranged on the top of the discharging conveyor 101, and the coating machines 2 are installed at the ends of the feeding conveyor 100 and the discharging conveyor 101 close to each other, and the conveyors 3 are installed on the opposite sides of the two coating machines 2. The feeding conveyor 100 is higher than the discharging conveyor 101, and the coating machine 2 and the conveyor 3 on the left are higher than the coating machine 2 and the conveyor 3 on the right, respectively. A turning mechanism 4 is installed between the two conveyors 3, and the photovoltaic glass is conveyed to the coating machine 2 on the left by the feeding conveyor 100 for first-side coating, and then passes through The conveyor 3 on the left is transmitted to the flipping mechanism 4, and the flipping mechanism 4 is started to flip the glass. At the same time, hot air is introduced into the flipping mechanism 4, and the hot air dries the coating layer of the photovoltaic glass transferred in the flipping mechanism 4, ensuring that the coating on the photovoltaic glass is dried after the photovoltaic glass is flipped, thereby reducing the length of the production line, and the flipping and drying are completed simultaneously to improve work efficiency. Since the conveyor 3 and coating machine 2 on the right are lower than those on the left, it is convenient for the flipping mechanism 4 to unload the photovoltaic glass, and the conveyor 3 on the right receives the dried photovoltaic glass, and continues to transport the photovoltaic glass to the right to the coating machine 2 on the right for coating on the other side, and then drives the photovoltaic glass to be transported through the discharge conveyor 101, and the drying box 17 dries the coating layer on the other side of the photovoltaic glass to achieve a double-sided coating effect.

[0035] The flipping mechanism 4 includes a support frame 41, a support shaft 42, a hollow tube 43, a plug-in 441, a triangular support member 45, a stepping drive motor 48, a support tube 49, and a connecting flange 491; the support shaft 42 is installed on both the front and rear sides of the top of the support frame 41 through a bearing seat, a hollow tube 43 is connected between the two support shafts 42, and the hollow tube 43 is evenly provided with slots 44 in the circumferential direction. The triangular support members 45 are arranged in an annular array at intervals on the outside of the hollow tube 43, and the end of the triangular support member 45 facing the hollow tube 43 is connected with a plug-in 441, and the slot 44 is connected to the triangular support member 45 through the plug-in 441, and each adjacent two triangular support members 4 5, a rectangular heating chamber 46 is formed between the hollow tube 43, heat conduction holes 47 are arranged at intervals in the circumferential direction, the heat conduction holes 47 and the slots 44 are staggered, the support shaft 42 is hollow inside, the two ends of the hollow tube 43 are respectively connected with the two support shafts 42, a stepping drive motor 48 is installed on the front side of the support frame 41, the stepping drive motor 48 is transmission-connected with the front support shaft 42, a support pipe 49 is installed on the front side of the support frame 41, the support pipe 49 is sleeved on the outer side of the front support shaft 42, when the support shaft 42 rotates, the support pipe 49 will not rotate, and the front end of the support pipe 49 is connected with a connecting flange 491, which is conveniently connected to the air outlet duct of the hot air blower through the connecting flange 491.

[0036] Furthermore, two blocking bars 20 are provided between each two adjacent triangular support members 45. The two blocking bars 20 are respectively connected to the front and rear ends of the hollow tube 43. The two blocking bars 20 respectively block the front and rear sides of the heating chamber 46 to prevent the hot air in the heating chamber 46 from escaping through the front and rear sides, and can provide limited support for the ends of the triangular support members 45 to prevent the triangular support members 45 from deformation.

[0037] Furthermore, a stopper 19 is connected to the side of one end of the triangular support member 45 facing the hollow tube 43. The stopper 19 is located in the heating chamber 46. The front and rear ends of the stopper 19 are respectively in contact with the two blocking strips 20. A vent is provided on the stopper 19. There is a certain gap between the stopper 19 and the hollow tube 43 to facilitate the circulation of hot air.

[0038] Furthermore, a retaining frame 15 is provided on one side of the triangular support member 45 , and a limiting hole 16 is provided on the retaining frame 15 . A ball 14 is rollingly provided on the triangular support member 45 through the retaining frame 15 , and the limiting hole 16 is used to prevent the ball 14 from detaching from the retaining frame 15 .

[0039] Furthermore, a positioning ring 11 is connected between the front and rear sides of the outer side of the triangular support member 45, and the positioning ring 11 is connected to the triangular support member 45 by bolts. The positioning ring 11 is used to connect and fix the multiple triangular support members 45 at one end away from the hollow tube 43. An arc-shaped wind shield 12 surrounding the outer side of the upper triangular support member 45 is connected to the support frame 41 through a bracket. The inner side of the arc-shaped wind shield 12 is in contact with the outer side of the positioning ring 11, and the top of the arc-shaped wind shield 12 is connected to the return air duct 13. An air flow channel is provided between the arc-shaped wind shield 12 and the triangular support member 45 to facilitate the hot air to gather to the return air duct 13. An electric roller 121 is provided at one end of the arc-shaped wind shield 12 close to the feed conveyor 100, and a proximity sensor 18 is provided on the side of the top of the support frame 41 close to the electric roller 121.

[0040] During the photovoltaic glass coating process, the proximity sensor 18 and the stepper drive 48 are respectively connected to the control system to start the feed conveyor 100, the discharge conveyor 101, the coating machine 2, the conveyor 3, the electric roller 121 and the drying box 17. At the same time, the support tube 49 is connected to the external hot air blower through the connecting flange 491, and the return air duct 13 is connected to the heat recovery device. The photovoltaic glass is transported to the right from the feed conveyor 100. First, the photovoltaic glass enters the coating machine 2 on the left for single-sided coating, and then continues to be transported to the right through the left conveyor 3 until the photovoltaic glass enters the 9 o'clock position in the heating chamber 46. During this process, the electric roller 121 rotates to assist in ensuring that the photovoltaic glass is fully delivered into the heating chamber 46. If the photovoltaic glass does not fully enter the heating chamber 46, the proximity sensor 18 senses the object and the stepper drive 48 cannot work, so as to avoid the photovoltaic glass not fully entering the heating chamber 46 and starting the stepper drive 48, which causes the photovoltaic glass to collide with the curved wind shield 12 and cause damage. Once the photovoltaic glass completely enters the heating chamber 46, start the external hot air blower to transport the hot air into the hollow tube 43 through the support tube 49 and the support shaft 42. The hot air is guided to the heating chamber 46 through the heat conduction hole 47. The hot air dries the coating on the photovoltaic glass after coating. The arc-shaped windshield plate 12 prevents most of the hot air from escaping. The hot air is recovered through the return air duct 13 to achieve efficient use of energy. Start the stepper drive 48 to drive the support shaft 42 to rotate intermittently clockwise. The rotation of the support shaft 42 drives the hollow tube 43 and the triangular support 45 to rotate. The photovoltaic glass gradually changes from a horizontal state to an inclined state, and moves toward the direction of the hollow tube 43 under the action of gravity until it is blocked by the stopper 19 to prevent the photovoltaic glass from blocking the heat conduction hole 47. The vents on the stopper 19 ensure that the hot air can flow smoothly and will not affect the drying process of the coating layer. When the photovoltaic glass rotates to the upper left of the right conveyor 3, the coating layer is dried, and the side with the coating layer faces downward in contact with the ball 14. Under the action of the ball 14, the photovoltaic glass tilts downward and slides onto the right conveyor 3. The conveyor 3 transports the photovoltaic glass to the right to the coating machine 2 on the right for coating on the other side. After coating, it is transported to the right by the discharge conveyor 101, and the coating coating is dried by the drying box 17.

[0041] For example 2, please refer to Figure 2 , Figure 7 , Figure 8 and Fig. 9On the basis of the first embodiment, each triangular support member 45 is provided with a fixing mechanism, which includes a cylinder body 51, a guide seat 52, a piston rod 53, an elastic member 58, a roller 54, a suction cup 55, a connecting frame 56, and an arc-shaped top pressure rod 591; the cylinder body 51 and the two guide seats 52 are installed on one side of the inside of the triangular support member 45, and the cylinder body 51 and the two guide seats 52 are arranged in a straight line. A piston rod 53 is provided in the cylinder body 51, and the shape of the piston rod 53 is L-shaped. The piston rod 53 passes through the front end of the cylinder body 51, and the front end of the piston rod 53 is slidably matched with the two guide seats 52. An elastic member 58 is connected between the piston rod 53 and the guide seat 52. The elastic member 58 is sleeved on the outside of the piston rod 53, and the piston rod 53 is away from the cylinder body 51. One end of the triangular support 45 is rotatably connected to a roller 54, a guide hole is provided on the side of the triangular support 45 away from the ball 14, a plurality of suction cups 55 are provided in the guide hole, the suction cups 55 are slidably matched with the guide hole, the plurality of suction cups 55 are connected by a connecting frame 56, the connecting frame 56 is located on the inner side of the triangular support 45, the plurality of suction cups 55 are connected with an air pipe 57, the air pipe 57 is connected to the rear end of the cylinder body 51, a fan-shaped frame 59 is installed on the top of the front side of the support frame 41, the fan-shaped frame 59 is located on the rear side of the front bearing seat, an arc-shaped push rod 591 is connected to the fan-shaped frame 59, the left end front side of the arc-shaped push rod 591 is provided with an inclined surface 592, the front end surface of the arc-shaped push rod 591 is located on the rear side of the roller 54, and the roller 54 is in contact with the arc-shaped push rod 591.

[0042] Furthermore, a wedge plate 6 is connected to the middle of the connecting frame 56 , and a push rod 7 is connected to one end of the piston rod 53 close to the cylinder body 51 . The push rod 7 is located outside the cylinder body 51 , and the push rod 7 is in contact with the wedge plate 6 .

[0043] When the photovoltaic glass is transported to the 12 o'clock to 6 o'clock position of the hollow tube 43, the photovoltaic glass is affected by gravity, causing one side of its coating layer to face downward and contact the triangular support 45, thereby reducing the time of contact with hot air, which may cause the coating layer to adhere to the triangular support 45 without being fully dried, so a fixing mechanism is specially provided. When the triangular support 45 and the suction cup 55 are rotated at the 9 o'clock position, the suction cup 55 moves downward under the action of gravity, and the suction port of the suction cup 55 faces upward and is not higher than the surface of the triangular support 45. Therefore, the photovoltaic glass will not be blocked by the suction cup 55 when entering the heating chamber 46. When the triangular support member 45 carries the photovoltaic glass and rotates clockwise from the 9 o'clock position, the roller 54 is compressed by the inclined surface 592 on the arc-shaped top pressure rod 591, causing the piston rod 53 to move forward, the elastic member 58 to stretch, and the top rod 7 moves forward with the piston rod 53 and squeezes the wedge plate 6 to rise, and the connecting frame 56 drives the suction cup 55 to rise. The suction cup 55 rises and comes into close contact with the uncoated side of the photovoltaic glass. As the piston rod 53 moves forward, negative pressure is generated inside the cylinder body 51 and the suction cup 55, and the suction cup 55 firmly absorbs the photovoltaic glass. When the roller 54 separates from the arc-shaped top pressure rod 591, the piston rod 53 is driven to reset backward under the action of the elastic member 58, and the suction cup 55 releases the photovoltaic glass. The photovoltaic glass falls downward onto the ball 14 under the action of gravity and is transferred to the conveyor 3 on the right through the ball 14.

[0044] Please refer to 10. A connecting rod 9 is provided in the hollow position inside the support shaft 42 away from the support tube 49. The outer portion of the connecting rod 9 is adapted to the hollow portion of the support shaft 42. An arc-shaped baffle 10 is connected to one end of the connecting rod 9 facing the hollow tube 43. The arc-shaped baffle 10 is located inside the hollow tube 43. The outer wall of the arc-shaped baffle 10 contacts the inner wall of the lower half of the hollow tube 43. A connecting piece 8 is installed on the rear support frame 41, and the connecting piece 8 is connected to the connecting rod 9.

[0045] When the hollow tube 43 rotates, since the arc-shaped baffle 10 is fixed, the arc-shaped baffle 10 always keeps shielding the heat-conducting hole 47 in the lower half of the hollow tube 43, effectively preventing hot air leakage and further saving energy.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A double-sided coating device for photovoltaic glass, comprising a feed conveyor (100), a discharge conveyor (101), two coating machines (2), and a drying box (17), wherein the feed conveyor (100) and the discharge conveyor (101) are respectively arranged at two ends of the coating device, a drying box (17) is arranged at the top of the discharge conveyor (101), and the coating machine (2) is installed at the ends of the feed conveyor (100) and the discharge conveyor (101) close to each other, characterized in that: It also includes two conveyors (3) and a flipping mechanism (4); a conveyor (3) is provided on the opposite sides of the two coating machines (2), and the flipping mechanism (4) is installed between the two conveyors (3); The flipping mechanism (4) comprises a support frame (41), a support shaft (42), a hollow tube (43), a triangular support member (45), a stepping drive motor (48), a support tube (49), and a connecting flange (491); the support shaft (42) is installed on both sides of the top of the support frame (41); the hollow tube (43) is connected between the two support shafts (42); the triangular support members (45) are evenly inserted into the hollow tube (43) in the circumferential direction; and a spacer is formed between each two adjacent triangular support members (45). A rectangular heating chamber (46), the hollow tube (43) is provided with heat conducting holes (47) at intervals in the circumferential direction, the support shaft (42) is hollow inside, the stepping drive motor (48) is mounted on the support frame (41), the stepping drive motor (48) is in driving connection with one side of the support shaft (42), the support tube (49) is mounted on one side of the support frame (41), the support tube (49) is sleeved on the outside of the support shaft (42), and the support tube (49) is connected to the connecting flange (491); Two blocking bars (20) are provided between each two adjacent triangular support members (45), and the two blocking bars (20) are respectively connected to two ends of the hollow tube (43); The height of the feeding conveyor (100) is higher than that of the discharging conveyor (101), and the coating machine (2) on one side close to the feeding conveyor (100) is higher than that of the coating machine (2) on the other side; Each of the triangular support members (45) is provided with a fixing mechanism, and the fixing mechanism comprises a cylinder body (51), a guide seat (52), a piston rod (53), an elastic member (58), a roller (54), a suction cup (55), a connecting frame (56), and an arc-shaped pressing rod (591); the cylinder body (51) and the guide seat (52) are both installed on one side of the inside of the triangular support member (45); the cylinder body (51) is provided with the piston rod (53), the piston rod (53) and the guide seat (52) are slidably matched, the elastic member (58) is connected between the piston rod (53) and the guide seat (52), and the piston rod (53) is remote from the guide seat (52). The roller (54) is provided at one end away from the cylinder body (51), a plurality of suction cups (55) are slidably provided on one side of the triangular support member (45), the plurality of suction cups (55) are connected via the connecting frame (56), the plurality of suction cups (55) are connected to an air pipe (57), the air pipe (57) is connected to the cylinder body (51), a fan-shaped frame (59) is installed on the top of the support frame (41), the fan-shaped frame (59) is connected to the arc-shaped pressing rod (591), one end of the arc-shaped pressing rod (591) is provided with an inclined surface (592), and the roller (54) is in contact with the arc-shaped pressing rod (591).

2. A double-sided coating device for photovoltaic glass according to claim 1, characterized in that: A stopper (19) is connected to the side surface of one end of the triangular support member (45) facing the hollow tube (43), and a vent hole is provided on the stopper (19).

3. A double-sided coating device for photovoltaic glass according to claim 2, characterized in that: A ball (14) is provided in a rolling manner on a side of the triangular support member (45) away from the suction cup (55).

4. The double-sided coating device for photovoltaic glass according to claim 3, characterized in that: A wedge plate (6) is connected to the connecting frame (56), and an end of the piston rod (53) close to the cylinder body (51) is connected to a push rod (7), and the push rod (7) is in contact with the wedge plate (6).

5. The double-sided coating device for photovoltaic glass according to claim 4, characterized in that: A connecting rod (9) is provided inside the support shaft (42) away from the support tube (49); an end of the connecting rod (9) facing the hollow tube (43) is connected to an arc-shaped baffle (10); an outer wall of the arc-shaped baffle (10) contacts an inner wall of a lower half of the hollow tube (43); a connecting piece (8) is installed on the support frame (41); and the connecting piece (8) is connected to the connecting rod (9).

6. A double-sided coating device for photovoltaic glass according to claim 5, characterized in that: A positioning ring (11) is connected between the front and rear sides of the outer side of the triangular support member (45); an arc-shaped windshield (12) surrounding the outer side of the upper part of the triangular support member (45) is connected to the support frame (41) via a bracket; a return air duct (13) is connected to the top of the arc-shaped windshield (12); a motorized roller (121) is provided at one end of the arc-shaped windshield (12) close to the feed conveyor (100); and a proximity sensor (18) is provided at one side of the top of the support frame (41) close to the motorized roller (121).

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