Four-corner cleaning equipment for photovoltaic module frame

Abstract

The invention discloses four-corner cleaning equipment for a photovoltaic module frame, and relates to the technical field of photovoltaic module cleaning. A four-corner cleaning device for a photovoltaic module frame comprises a rack. The rack is provided with a material holding device used for clamping a photovoltaic module, a cloth supply device used for feeding non-woven fabric, a cloth holding and cleaning device used for clamping the non-woven fabric and holding the non-woven fabric to wipe a frame of the photovoltaic module, and a detection device used for detecting whether glue exists or not. The cloth supply device comprises a frame body arranged on the rack, and the frame body is provided with an unwinding roller used for unwinding non-woven fabric, a guide roller set used for guiding the non-woven fabric to flow, a cloth pulling assembly used for pulling the non-woven fabric, a cloth pressing assembly used for pressing the non-woven fabric so that the non-woven fabric can be tightened, and a cutting assembly used for cutting off the non-woven fabric. And the unwinding roller and the guide roller group are rotationally connected with the frame body. The cleaning efficiency of the photovoltaic module frame can be improved.

Description

Technical Field

[0001] This application relates to the technical field of photovoltaic module cleaning, and particularly to a four-corner cleaning device for the frame of a photovoltaic module. Background Art

[0002] At present, with the booming development of the photovoltaic industry, the efficient production and stable operation of photovoltaic modules are crucial. As a key part to ensure the structural stability of the module and resist the erosion of the external environment, the cleaning condition of the frame of the photovoltaic module directly affects the overall performance and service life of the module. In the manufacturing process of photovoltaic modules, a large amount of glue is used during the frame assembly to ensure firm connection. However, during the operation, it is inevitable that excess glue overflows and adheres to the four corners of the frame. After this glue solidifies, it has high hardness, strong viscosity and fits tightly with the frame. Subsequently, it may also mix with sediment and dust in the external environment to form more stubborn dirt. Currently, workers usually use conventional wiping tools such as non-woven fabrics to wipe the four-corner structure of the frame. This wiping method consumes a lot of time and manpower, cannot meet the large-scale production requirements of photovoltaic modules, and has low cleaning efficiency. Summary of the Invention

[0003] In order to improve the cleaning efficiency of the frame of a photovoltaic module, this application provides a four-corner cleaning device for the frame of a photovoltaic module.

[0004] The four-corner cleaning device for the frame of a photovoltaic module provided by this application adopts the following technical solutions: A four-corner cleaning device for the frame of a photovoltaic module includes a frame, on which a material holding device for clamping a photovoltaic module, a cloth supply device for feeding non-woven fabric, a cloth holding and cleaning device for clamping the non-woven fabric and wiping the frame of the photovoltaic module with the non-woven fabric, and a detection device for detecting whether there is glue are installed; the cloth supply device includes a frame body provided on the frame, on which a unwinding roller for unwinding the non-woven fabric, a guiding roller group for guiding the flow of the non-woven fabric, a cloth pulling component for pulling the non-woven fabric, a cloth pressing component for pressing the non-woven fabric so that the non-woven fabric is tightened, and a cutting component for cutting the non-woven fabric are provided. Both the unwinding roller and the guiding roller group are rotatably connected to the frame body.

[0005] By adopting the above technical solutions, the following cleaning operations can be achieved: First, the photovoltaic module is clamped by the material holding device, then the non-woven fabric is fed by the unwinding roller. The non-woven fabric is guided by the guiding roller group and pulled by the cloth pulling component. With the cooperation of the cloth pressing component, the non-woven fabric is tightened. At this time, a section of the non-woven fabric can be cut by the cutting component. Then, this section of the non-woven fabric is clamped by the cloth holding and cleaning device, and the frame of the photovoltaic module is cleaned under the detection cooperation of the detection device; this application can improve the cleaning efficiency of the frame of a photovoltaic module.

[0006] Preferably, the fabric pulling assembly includes a first reciprocating driving member disposed on the frame body. The first reciprocating driving member is connected to a first connecting frame. The first connecting frame is provided with a material clamping member. Two clamping jaws are installed on the material clamping member. The material clamping member is used to drive the two clamping jaws to clamp the non-woven fabric. The first reciprocating driving member is used to drive the material clamping member to move so as to pull the non-woven fabric.

[0007] By adopting the above technical solution, the material clamping member is used to drive the two clamps to move to clamp the non-woven fabric, and the first reciprocating driving member is driven to drive the first connecting frame to move, thereby driving the material clamping member to move to pull the non-woven fabric, so as to prepare for subsequent cutting.

[0008] Preferably, the fabric pressing assembly includes a second connecting frame disposed on the frame body. A material pressing member is provided on the second connecting frame. A pressing block is provided on the material pressing member. A bearing block opposite to the pressing block is also provided on the second connecting frame. A material passing area for the non-woven fabric to pass through is formed between the bearing block and the pressing block.

[0009] By adopting the above technical solution, driving the material pressing member can drive the pressing block to move towards the bearing block to press the non-woven fabric on the bearing block. Under the cooperation of the pulling of the non-woven fabric by the fabric pulling assembly, the non-woven fabric will be tightened to facilitate subsequent cutting of the non-woven fabric.

[0010] Preferably, both the end of the pressing block close to the material clamping member and the end of the bearing block close to the material clamping member are provided with receiving grooves, and the receiving grooves are configured to allow the clamping jaws to extend therein.

[0011] Preferably, the cutting assembly includes a cutting driving member disposed on the second connecting frame. The cutting driving member is connected to a cutting knife. The cutting knife is attached to the side wall of the bearing block and the cutting knife is located on one side of the receiving groove; when the non-woven fabric is tightened, the cutting member drives the cutting knife to move along the side wall of the bearing block to cut the non-woven fabric.

[0012] By adopting the above technical solution, driving the cutting driving member can drive the cutting knife to move along the side wall of the bearing block to cut the non-woven fabric. At this time, a part of the non-woven fabric to be cut subsequently will be partially located in the receiving groove to facilitate subsequent clamping by the material clamping member.

[0013] Preferably, the cloth holding and cleaning device includes a manipulator disposed on the machine frame. The manipulator is connected to a mounting frame. A material ejecting member and two clamping members are provided on the mounting frame. The material ejecting member is located between the two clamping members; when the two clamping members respectively hold the two ends of the non-woven fabric, the material ejecting member can eject the middle position of the non-woven fabric.

[0014] By adopting the above technical solution, the manipulator is driven to drive the two clamping members to move. The two clamping members are used to slightly hold the two ends of the non-woven fabric respectively. At this time, it is necessary to drive the material ejecting member to eject the middle position of the non-woven fabric, and then drive the two clamping members to clamp the non-woven fabric again. The part of the non-woven fabric that is ejected subsequently is the part that contacts the photovoltaic module for cleaning.

[0015] Preferably, a base is further provided on the frame. A plurality of carrier wheels are rotatably connected to the base, and a collection box is placed on the carrier wheels.

[0016] By adopting the above technical solution, the two clamping members are driven to release the clamping of the non-woven fabric, and then the ejecting member is driven to eject the non-woven fabric so that the non-woven fabric falls into the collection box and is collected.

[0017] Preferably, the detection device includes a first fixing frame provided on the frame. A first fine-tuning assembly is installed on the first fixing frame. The first fine-tuning assembly is connected to a second fixing frame. The second fixing frame is connected to a second fine-tuning assembly. The second fine-tuning assembly is connected to a third fixing frame. The first fine-tuning assembly is used to drive the third fixing frame to move left and right. The second fine-tuning assembly is used to drive the third fixing frame to move back and forth; an angle adjustment assembly one is installed on the third fixing frame. The angle adjustment assembly one is connected to an angle adjustment assembly two. A light source and a detection camera are installed on the angle adjustment assembly two. The angle adjustment assembly one is configured to enable the detection camera to rotate along a first plane. The angle adjustment assembly two is configured to enable the detection camera to rotate along a second plane. The first plane and the second plane are perpendicular.

[0018] By adopting the above technical solution, driving the first fine-tuning assembly and the second fine-tuning assembly can drive the detection camera to move to adjust the position of the detection camera, and the orientation of the detection camera can be adjusted by using the angle adjustment assembly one and the angle adjustment assembly two; the present application can facilitate the detection of photovoltaic modules of different sizes.

[0019] Preferably, the angle adjustment assembly one includes a connecting plate connected to the angle adjustment assembly two. A connecting hole is formed in the third fixing frame. A kidney-shaped groove is formed in the connecting plate. The connecting hole and the kidney-shaped groove are jointly connected with a locking member.

[0020] By adopting the above technical solution, the locking member is removed and then the connecting plate is rotated so that the connecting hole reaches different positions of the kidney-shaped groove, and then the locking member is reinstalled to adjust the orientation of the detection camera.

[0021] In summary, the present invention includes at least one of the following beneficial technical effects: 1. The present application can achieve the following cleaning actions: First, the photovoltaic module is clamped by the material holding device, and then the non-woven fabric is fed by the unwinding roller. The non-woven fabric will be guided by the guide roller group and pulled by the cloth pulling assembly. With the cooperation of the cloth pressing assembly, the non-woven fabric will be tightened. At this time, a section of the non-woven fabric can be cut by the cutting assembly. Then, this section of the non-woven fabric is clamped by the cloth holding and cleaning device, and the frame of the photovoltaic module is cleaned under the detection cooperation of the detection device; the present application can improve the cleaning efficiency of the frame of the photovoltaic module; 2. Drive the manipulator to drive the two clamping members to move, and use the two clamping members to slightly hold both ends of the non-woven fabric respectively. At this time, it is necessary to drive the ejector to eject the middle position of the non-woven fabric, and then drive the two clamping members again to clamp the non-woven fabric. The ejected part of the non-woven fabric subsequently is the part that contacts the photovoltaic module for cleaning; after the non-woven fabric is used up, drive the two clamping members to release the clamping of the non-woven fabric, and then drive the ejector to eject the non-woven fabric so that the non-woven fabric falls into the collection box for collection. Brief Description of the Drawings

[0022] Figure 1 is the overall structural schematic diagram of a four-corner cleaning device for the frame of a photovoltaic module in an embodiment of the present application; Figure 2 is the structural schematic diagram of the material holding device; Figure 3 is the structural schematic diagram of the fabric supply device; Figure 4 is Figure 3 the enlarged view of part A in Figure 5 is the structural schematic diagram for embodying the fabric holding and cleaning device; Figure 6 is the structural schematic diagram of the detection device; Figure 7 is the structural schematic diagram for embodying the collection box.

[0023] Reference signs in the drawings: 1, frame; 11, base; 12, carrier wheel; 13, collection box; 2, material holding device; 21, belt conveyor assembly; 22, alignment assembly; 221, electric cylinder; 222, frame group; 223, alignment seat; 3, fabric supply device; 31, frame body; 32, unwinding roller; 33, guide roller group; 34, fabric pulling assembly; 341, reciprocating driving member one; 342, connecting frame one; 343, clamping member; 344, clamping jaw; 35, fabric pressing assembly; 351, connecting frame two; 352, pressing member; 353, pressing block; 354, bearing block; 355, material passing area; 356, accommodation groove; 36, cutting assembly; 361, cutting driving member; 362, cutting knife; 4, fabric holding and cleaning device; 41, manipulator; 42, mounting frame; 43, ejector; 44, clamping member; 5, detection device; 51, fixing frame one; 52, fine adjustment assembly one; 53, fixing frame two; 54, fine adjustment assembly two; 55, fixing frame three; 551, connecting hole; 56, angle adjustment assembly one; 561, connecting plate; 5611, kidney-shaped groove; 57, angle adjustment assembly two; 58, light source; 59, detection camera. Detailed Embodiments

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0026] An embodiment of the present application discloses a four-corner cleaning device for the frame of a photovoltaic module. It is used to clean the residual glue on the frame of the photovoltaic module. In this embodiment, taking the cleaning of a cuboid-shaped photovoltaic module as an example.

[0027] Referring to Figure 1 , a four-corner cleaning device for the frame of a photovoltaic module includes a frame 1. The frame 1 is equipped with a material holding device 2 for clamping the photovoltaic module, a cloth supply device 3 for feeding non-woven fabric, a cloth holding and cleaning device 4 for clamping the non-woven fabric and wiping the frame of the photovoltaic module with the non-woven fabric, and a detection device 5 for detecting the presence of glue. Specifically, in this embodiment, for the convenience of cleaning the four corners of the frame of the photovoltaic module, there are four cloth supply devices 3, and the four cloth supply devices 3 are respectively located at the four corners of the frame 1. There are two left and right cloth holding and cleaning devices 4, and there are also four detection devices 5 corresponding to the cloth supply devices 3.

[0028] Referring to Figure 1 and Figure 2 , the material holding device 2 includes a plurality of belt conveyor assemblies 21 arranged in parallel on the frame 1. The specific structure of the belt conveyor assembly 21 is the prior art, so it will not be described in detail here. The belt conveyor assembly 21 is used to carry the photovoltaic module and for the loading and unloading of the photovoltaic module; the material holding device 2 further includes a rectifying assembly 22 for adjusting the position of the photovoltaic module.

[0029] Referring to Figure 2 , the rectifying assembly 22 includes two electric cylinders 221 arranged on the frame 1. Each electric cylinder 221 is connected with a frame group 222, and each frame group 222 is connected with a pair of rectifying seats 223. After the photovoltaic module is located on the plurality of belt conveyor assemblies 21, the two electric cylinders 221 are driven to drive the two pairs of rectifying seats 223 to move towards the photovoltaic module to rectify the photovoltaic module.

[0030] Referring to Figure 3 , the cloth supply device 3 includes a frame body 31 arranged on the frame 1. The frame body 31 is provided with a unwinding roller 32 for unwinding the non-woven fabric, a guiding roller group 33 for guiding the flow of the non-woven fabric, a pulling cloth assembly 34 for pulling the non-woven fabric, a pressing cloth assembly 35 for pressing the non-woven fabric so that the non-woven fabric is tightened, and a cutting assembly 36 for cutting the non-woven fabric. Both the unwinding roller 32 and the guiding roller group 33 are rotatably connected to the frame body 31.

[0031] Reference Figure 3 and Figure 4 As shown in Figure 3 and Figure 4 , the fabric pulling assembly 34 includes a first reciprocating driving member 341 provided on the frame 31. The first reciprocating driving member 341 is a cylinder. The first reciprocating driving member 341 is connected with a first connecting frame 342. A material clamping member 343 is installed on the first connecting frame 342. The material clamping member 343 is a material clamping cylinder. Two clamping jaws 344 are installed on the material clamping member 343. The material clamping member 343 is used to drive the two clamping jaws 344 to clamp the non-woven fabric. The first reciprocating driving member 341 is used to drive the material clamping member 343 to move so as to pull the non-woven fabric.

[0032] Reference Figure 3 and Figure 4 As shown in Figure 3 and Figure 4 , the fabric pressing assembly 35 includes a second connecting frame 351 provided on the frame 31. A material pressing member 352 is provided on the second connecting frame 351. The material pressing member 352 is a material pressing cylinder. A pressing block 353 is provided on the material pressing member 352. A bearing block 354 opposite to the pressing block 353 is further provided on the second connecting frame 351. The bearing block 354 and the pressing block are arranged vertically, and the bearing block 354 is located below the pressing block. A material passing area 355 for the non-woven fabric to pass through is formed between the bearing block 354 and the pressing block 353. In addition, in order to facilitate the two clamping jaws 344 to clamp the non-woven fabric, both the end of the pressing block 353 close to the material clamping member 343 and the end of the bearing block 354 close to the material clamping member 343 are provided with receiving grooves 356, and the receiving grooves 356 are configured to allow the clamping jaws 344 to extend into.

[0033] Reference Figure 4 As shown in Figure 4 , the cutting assembly 36 includes a cutting driving member 361 provided on the second connecting frame 351. The cutting driving member 361 is preferably a cutting cylinder. The cutting driving member 361 is connected with a cutting knife 362. The cutting knife 362 is attached to the side wall of the bearing block 354 and the cutting knife 362 is located on one side of the receiving groove 356, and the cutting knife 362 faces upward.

[0034] First, place the wound non-woven fabric on the unwinding roller 32, then use the guiding roller group 33 to guide the non-woven fabric through the material passing area 355 and ensure that a part of the non-woven fabric is located in the receiving groove 356. Then drive the first reciprocating driving member 341 to drive the material clamping member 343 to move so that the two clamping jaws 344 enter the receiving groove 356 and ensure that a part of the cleaning cloth is located between the two clamping jaws 344. Subsequently, drive the material clamping member 343 to drive the two clamping jaws 344 to clamp the cleaning cloth tightly. Drive the first reciprocating driving member 341 to drive the non-woven fabric to move a certain distance. In cooperation with driving the material pressing member 352 to drive the pressing block 353 to move downward to press the non-woven fabric against the bearing block 354, the non-woven fabric to be cut is tightened. At this time, it is necessary to drive the cloth holding and cleaning device 4 to grab the non-woven fabric to be cut. Then drive the cutting driving member 361 to drive the cutting knife 362 to move upward along the wall of the bearing block 354 to cut off this section of the non-woven fabric.

[0035] Reference Figure 5and in combination with Figure 1 The cloth holding and cleaning device 4 includes a manipulator 41 arranged on the machine frame 1. The manipulator 41 is connected with a mounting frame 42. A blanking member 43 and two clamping members 44 are arranged on the mounting frame 42. The blanking member 43 includes a blanking cylinder connected to the mounting frame 42 and a blanking plate connected to the blanking cylinder. The clamping member 44 is a clamping cylinder. The blanking member 43 is located between the two clamping members 44.

[0036] When the non-woven fabric is tightened, the manipulator 41 is flexibly driven to move the two clamping members 44 so that the two ends of the non-woven fabric to be cut are respectively located between the two clamping members 44. The two clamping members 44 are driven to slightly hold the two ends of the non-woven fabric respectively. After the non-woven fabric is cut off, the blanking member 43 is driven to push the middle position of the non-woven fabric downward to contact with the photovoltaic module for cleaning.

[0037] Referring to Figure 6 The detection device 5 includes a first fixing frame 51 arranged on the machine frame 1. A first fine adjustment component 52 is installed on the first fixing frame 51. The first fine adjustment component 52 is connected with a second fixing frame 53. The second fixing frame 53 is connected with a second fine adjustment component 54. The second fine adjustment component 54 is connected with a third fixing frame 55. The first fine adjustment component 52 can drive the fixing frame to move left and right, while the second fine adjustment component 54 can drive the fixing frame to move back and forth. Both the first fine adjustment component 52 and the second fine adjustment component 54 are screw drive mechanisms. The specific structure of the screw drive mechanism is the prior art, so it will not be described in detail here. An angle adjustment component 56 is installed on the third fixing frame 55. The angle adjustment component 56 is connected with an angle adjustment component 57. A light source 58 and a detection camera 59 are installed on the angle adjustment component 57. The angle adjustment component 56 is configured to enable the detection camera 59 to rotate along a first plane, and the angle adjustment component 57 is configured to enable the detection camera 59 to rotate along a second plane. The first plane and the second plane are perpendicular. The position of the detection camera 59 is adjusted by using the first fine adjustment component 52 and the second fine adjustment component 54, and the orientation of the detection camera 59 is adjusted by using the angle adjustment component 56 and the angle adjustment component 57. Based on the above adjustments, the detection of photovoltaic modules of different sizes and different shapes, such as cylindrical ones, is satisfied.

[0038] Referring to Figure 6 The angle adjustment component 56 and the angle adjustment component 57 have the same structure. Taking the structure of the angle adjustment component 56 as an example: The angle adjustment component 56 includes a connecting plate 561 connected to the angle adjustment component 57. A connecting hole 551 is formed on the third fixing frame 55. A waist-shaped groove 5611 is formed on the connecting plate 561. The connecting hole 551 and the waist-shaped groove 5611 are commonly connected with a locking member, and the locking member is a screw.

[0039] In addition, referring to Figure 7, in order to collect the used non-woven fabric, four bases 11 corresponding to the fabric supply device 3 are further provided on the frame 1. A plurality of carrier wheels 12 are rotatably connected to each base 11, and a collection box 13 is placed on the plurality of carrier wheels 12.

[0040] Currently, the pearl cotton cloth is commonly used in the market to clean the small amount of residual glue on the frame of the photovoltaic module, and generally it will be reused for environmental protection. However, this material is prone to breed bacteria after use and is not easy to be processed and recycled subsequently. In this application, using a brand-new non-woven fabric for cleaning can have a better cleaning effect, and the subsequent non-woven fabric can be easily recycled to meet the environmental protection requirements.

[0041] The implementation principle of a four-corner cleaning device for the frame of a photovoltaic module in an embodiment of this application is as follows: First, place the wound non-woven fabric on the unwinding roller 32, then use the guiding roller group 33 to guide the non-woven fabric through the material-passing area 355 and ensure that a part of the non-woven fabric is located in the receiving groove 356. After that, drive the reciprocating driving member 1 341 to drive the clamping member 343 to move, so that the two clamping jaws 344 enter the receiving groove 356 and ensure that a part of the cleaning cloth is located between the two clamping jaws 344. Subsequently, drive the clamping member 343 to drive the two clamping jaws 344 to clamp the cleaning cloth, drive the reciprocating driving member 1 341 to drive the non-woven fabric to move leftward for a certain distance, and cooperate with the driving of the pressing member 352 to drive the pressing block 353 to move downward to press the non-woven fabric against the bearing block 354, so that the non-woven fabric to be cut is tightened. Then, it is necessary to drive the manipulator 41 to move the two clamping members 44 so that the two ends of the non-woven fabric to be cut are respectively located between the two clamping members 44, drive the two clamping members 44 to slightly hold the two ends of the non-woven fabric respectively. After the non-woven fabric is cut off, drive the ejecting member 43 to eject the middle position of the non-woven fabric downward. Then, drive the manipulator 41 to wipe the frame of the photovoltaic module according to the established program. After the wiping is completed, drive the manipulator 41 to move the non-woven fabric above the collection box 13, release the clamping of the non-woven fabric, and drive the ejecting member 43 to eject the non-woven fabric down.

[0042] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A four-corner cleaning device for a photovoltaic module frame, characterized in that: The invention comprises a frame (1), wherein the frame (1) is provided with a material holding device (2) for clamping a photovoltaic module, a cloth supplying device (3) for feeding non-woven fabric, a cloth holding cleaning device (4) for clamping the non-woven fabric and holding the non-woven fabric to wipe the frame of the photovoltaic module, and a detection device (5) for detecting whether glue is present; the cloth supplying device (3) comprises a frame body (31) arranged on the frame (1), wherein the frame body (31) is provided with a unwinding roller (32) for unwinding the non-woven fabric, a guide roller group (33) for guiding the flow of the non-woven fabric, a cloth pulling component (34) for pulling the non-woven fabric, a cloth pressing component (35) for pressing the non-woven fabric so that the non-woven fabric is stretched, and a cutting component (36) for cutting the non-woven fabric, wherein the unwinding roller (32) and the guide roller group (33) are rotatably connected to the frame body (31).

2. The four-corner cleaning device for a photovoltaic module frame according to claim 1, characterized in that: The cloth pulling assembly (34) includes a reciprocating driving member (341) arranged on the frame (31), the reciprocating driving member (341) is connected to a connecting frame (342), the connecting frame (342) is equipped with a clamping member (343), two clamping claws (344) are installed on the clamping member (343), the clamping member (343) is used to drive the two clamping claws (344) to clamp the non-woven fabric, and the reciprocating driving member (341) is used to drive the clamping member (343) to move so as to pull the non-woven fabric.

3. The four-corner cleaning device for a photovoltaic module frame according to claim 2, characterized in that: The cloth pressing assembly (35) comprises a second connecting frame (351) arranged on the frame body (31), a material pressing piece (352) is arranged on the second connecting frame (351), a pressing block (353) is arranged on the material pressing piece (352), and a supporting block (354) opposite to the pressing block (353) is also arranged on the second connecting frame (351), and a material passing area (355) for non-woven fabric to pass through is formed between the supporting block (354) and the pressing block (353).

4. The four-corner cleaning device for a photovoltaic module frame according to claim 3, characterized in that: One end of the pressing block (353) close to the clamping piece (343) and one end of the bearing block (354) close to the clamping piece (343) both have a receiving groove (356), and the receiving groove (356) is configured to allow the clamping claw (344) to extend into it.

5. The four-corner cleaning device for a photovoltaic module frame according to claim 4, characterized in that: The cutting assembly (36) comprises a cutting drive member (361) arranged on the second connecting frame (351), the cutting drive member (361) is connected to a cutting knife (362), the cutting knife (362) is attached to the side wall of the supporting block (354) and the cutting knife (362) is located on one side of the receiving groove (356); when the non-woven fabric is stretched tight, the cutting member drives the cutting knife (362) to move along the side wall of the supporting block (354) to cut the non-woven fabric.

6. The four-corner cleaning device for a photovoltaic module frame according to claim 3, characterized in that: The cloth holding cleaning device (4) comprises a manipulator (41) arranged on a frame (1), the manipulator (41) being connected to a mounting frame (42), the mounting frame (42) being provided with a material ejecting member (43) and two clamping members (44), the material ejecting member (43) being located between the two clamping members (44); when the two clamping members (44) respectively hold the two ends of the non-woven fabric, the material ejecting member (43) can eject the middle portion of the non-woven fabric.

7. The four-corner cleaning device for a photovoltaic module frame according to claim 6, characterized in that: The frame (1) is also provided with a base (11), and a plurality of bearing wheels (12) are rotatably connected to the base (11), and a collection box (13) is placed on the bearing wheels (12).

8. The four-corner cleaning device for a photovoltaic module frame according to claim 7, characterized in that: The detection device (5) comprises a fixing frame (51) arranged on the frame (1), a fine adjustment component (52) is installed on the fixing frame (51), the fine adjustment component (52) is connected to a fixing frame (53), the fixing frame (53) is connected to a fine adjustment component (54), the fine adjustment component (54) is connected to a fixing frame (55), the fine adjustment component (52) is used to drive the fixing frame (55) to move left and right, and the fine adjustment component (54) is used to drive the fixing frame (55) to move forward and backward. The fixing frame 3 (55) is installed with an angle adjustment component 1 (56), and the angle adjustment component 1 (56) is connected with an angle adjustment component 2 (57). The angle adjustment component 2 (57) is installed with a light source (58) and a detection camera (59). The angle adjustment component 1 (56) is configured to enable the detection camera (59) to rotate along a first plane, and the angle adjustment component 2 (57) is configured to enable the detection camera (59) to rotate along a second plane. The first plane and the second plane are perpendicular.

9. The four-corner cleaning device for a photovoltaic module frame according to claim 8, characterized in that: The angle adjustment component one (56) comprises a connecting plate (561) connected to the angle adjustment component two (57); the fixing frame three (55) is provided with a connecting hole (551); the connecting plate (561) is provided with a waist-shaped groove (5611); the connecting hole (551) and the waist-shaped groove (5611) are jointly connected with a locking piece.

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