Photovoltaic cell printing screen appearance detection device

Abstract

The present invention relates to the technical field of photovoltaic cell printing screen detection, and specifically to a photovoltaic cell printing screen appearance detection device, comprising a base frame, two fixed rods and a moving unit, the moving unit comprising a first rotating rod, a second rotating rod and two first sliding blocks, the first rotating rod is provided with a first guide groove, the second rotating rod is provided with a second guide groove, two sliding mechanisms are arranged between the first rotating rod and the second rotating rod, the sliding mechanism comprises two moving rods, both ends of the two moving rods are respectively inserted into the first guide groove and the second guide groove, one side of the two moving rods is fixedly installed with a connecting rod, and a lighting mechanism is arranged on the connecting rod. The present invention adjusts the moving rod to move along the first guide slide groove and the second guide slide groove, thereby driving the lighting mechanism to move to the arc-shaped part of the first rotating rod and the second rotating rod, so as to facilitate the inspection of the side wall of the outer frame, thereby solving the problem that it is difficult to inspect the defects on the side wall of the outer frame in the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic cell sheet printing screen detection, and in particular to a photovoltaic cell sheet printing screen appearance detection device. Background Art

[0002] The photovoltaic cell printing screen is a key component in the photovoltaic cell manufacturing process. It is mainly used to form the battery electrodes in the printing process. The quality of the printing screen has a direct impact on the printing process. Therefore, the printing screen needs to be quality inspected before leaving the factory.

[0003] Among them, the appearance inspection is also a necessary requirement. The appearance requirements of the printing screen mainly involve the overall condition of the screen, including the condition of the mesh and the condition of the frame. The mesh should be neat, free of stains and damage, and should maintain appropriate tension to ensure the accuracy of printing. The warp and weft of the mesh should be clear and uniform, without obvious distortion or deformation. The requirements for the outer frame include flatness, no deformation, no obvious scratches or dents, etc. In a disclosed comparative document CN203894176U, it includes a base, a horizontal shaft arranged on the base, a ball valve, a bottom plate, a screen placement frame and an LED lamp arranged on the base. The rotating shaft rotates on the base, the ball valve is installed on the protruding end of the rotating shaft and connected to the bottom plate through the ball valve, and the screen placement plate is placed on the bottom plate and rotates close to the bottom plate. It is mainly convenient to find a suitable angle to check the screen, and there is no need to move the screen, which improves work efficiency. However, when in use, the screen needs to be placed in a placement frame. The placement frame has a certain thickness. When checking, the side wall of the screen will be blocked, and the side wall of the outer frame cannot be checked, and the inspection effect is not good. At the same time, when checking the back of the screen, the screen needs to be turned over and placed again, which is not efficient. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and to propose a photovoltaic cell printing screen appearance inspection device.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a photovoltaic cell printing screen appearance inspection device, comprising a T-shaped base frame, two fixed rods and a moving unit, the moving unit comprising a first rotating rod of a U-shaped structure, a second rotating rod of a U-shaped structure and two first sliding blocks, the same side of the two fixed rods is provided with a first sliding groove, the two first sliding blocks are respectively slidably connected in the two first sliding grooves, a hinge shaft is provided on the first sliding block, the first sliding blocks are respectively extended from both ends of the hinge shaft, the two ends of the first rotating rod are respectively fixedly installed on the two hinge shafts, the two ends of the first rotating rod are respectively arranged on the side of the two first sliding blocks in the same moving unit away from each other, and the two ends of the second rotating rod are respectively fixedly installed on the two hinge shafts. On the connecting shaft, the two ends of the second rotating rod are respectively arranged on the side where the two first sliding blocks in the same moving unit are close to each other, a first guide groove of a U-shaped structure is opened on the inner wall of the first rotating rod, and a second guide groove of a U-shaped structure is opened on the outer wall of the second rotating rod, and two sliding mechanisms are arranged between the first rotating rod and the second rotating rod, and the sliding mechanism includes two moving rods, the two ends of the two moving rods are respectively inserted into the first guide groove and the second guide groove, the two moving rods are located in the first guide groove and are fixedly installed with the first sliding rod, the two moving rods are located in the second guide groove and are fixedly installed with the second sliding rod, a connecting rod is fixedly installed on one side of the two moving rods, the two connecting rods extend out of the first sliding groove, and a lighting mechanism is arranged on the connecting rod.

[0006] In the above-mentioned photovoltaic cell printed screen appearance inspection device, the lighting mechanism includes a C-shaped mounting frame and an LED lamp, the mounting frame is hinged to two movable rods in the same sliding mechanism, the LED lamp is hinged to the mounting frame, and a rotating knob is provided on one side of the mounting frame, and the rotating knob is fixedly connected to the LED lamp.

[0007] In the above-mentioned photovoltaic cell printed screen appearance inspection device, two movable units are provided on the two fixed rods, and the two movable units are symmetrically arranged.

[0008] In the above-mentioned photovoltaic cell printed screen appearance inspection device, a C-shaped connecting frame is fixedly installed on the side where the two fixed rods are away from each other, and an arc-shaped second slider is fixedly installed at both ends of the same connecting frame. The two second sliders are symmetrically arranged, and the two adjacent second sliders on the two connecting frames are fixedly connected by an arc-shaped fixing bar.

[0009] In the above-mentioned photovoltaic cell printed screen appearance inspection device, two base frames are provided, and the sides of the two base frames close to each other are rotatably connected with the first mounting plate and the second mounting plate respectively, and the side of the first mounting plate close to the second mounting plate is fixedly installed with the first carrier plate of C-shaped structure, and two first carrier plates are provided and are symmetrical to each other, and synchronization rods are fixedly installed on the two first carrier plates, and the sides of the two synchronization rods away from the first mounting plate are fixedly installed on the second mounting plate, and the second carrier plates of C-shaped structure are slidably provided on the two synchronization rods, and the second carrier plates correspond to the first carrier plates one by one, and the sides of the two second carrier plates away from each other are fixedly installed with sliding rails of arc structure, and the second slider is slidably connected in the sliding rails on the same side.

[0010] In the above-mentioned photovoltaic cell printed screen appearance inspection device, the curvature of the slide rail is greater than the curvature corresponding to the semicircle, the fixing bar and the second slider are in an integrated structure, and the second slider is arranged in the slide rail.

[0011] In the above-mentioned photovoltaic cell printed screen appearance inspection device, a connecting groove is provided on the side where the two fixed rods are close to each other, and a connecting groove extends from one end of the hinge shaft and a spring plate with a C-shaped structure is fixedly installed. Two through holes are provided on the spring plate, and a spring rod is provided on the spring plate. The spring rod passes through the two through holes, and a locking spring is provided on the spring rod and inside the spring plate. A limiting groove is provided on the side where the two fixed rods are close to each other, and the spring rod is inserted into the limiting groove.

[0012] In the above-mentioned photovoltaic cell printed screen appearance inspection device, both of the two synchronization rods are provided with threads, and both of the two synchronization rods are threadedly connected with limit nuts.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] The present invention designs a fixed rod, a first rotating rod, a second rotating rod, a moving rod and a lighting mechanism. By adjusting the moving rod to move along the first guide slot and the second guide slot, the lighting mechanism is driven to move to the arc-shaped part of the first rotating rod and the second rotating rod, which is convenient for inspecting the side wall of the outer frame and solves the problem that it is difficult to inspect defects on the side wall of the outer frame in the prior art.

[0015] The present invention is designed with a first slider, a hinge shaft, a slide rail, a connecting frame, a second slider and a fixed bar. The printing screen is moved into the second carrier plate, the first rotating rod and the second rotating rod are rotated to a position perpendicular to the fixed rod, and the first slider is moved to drive the moving unit and the lighting unit to move longitudinally, so as to facilitate the inspection of the vertical plate on the left side of the outer frame. The connecting frame is flipped to make the fixed bar rotate in the slide rail, thereby driving the moving unit and the lighting mechanism to flip. At this time, the printing screen is moved into the first carrier plate, so as to facilitate the longitudinal inspection of the vertical plate on the right side of the outer frame, thereby further improving the convenience of inspection.

[0016] The present invention designs an articulated shaft and a spring rod, and drives the articulated shaft to rotate through the first rotating rod and the second rotating rod, thereby driving the spring rod to rotate. When the spring rod rotates to a specified angle, the spring rod is inserted into the connecting groove to lock the mobile unit, which is beneficial to increase the stability of the mobile unit when moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0018] Figure 2 The present invention Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0019] Figure 3 The present invention Figure 1 Schematic diagram of the local enlarged structure at point B in the middle.

[0020] Figure 4 The present invention Figure 1 Schematic diagram of the local enlarged structure at point C in the middle.

[0021] Figure 5 It is a schematic diagram of the planar structure of the mobile unit and the first carrier board of the present invention.

[0022] Figure 6 The present invention Figure 4 Schematic diagram of the local enlarged structure at point D in the middle.

[0023] Figure 7 The present invention Figure 4 Schematic diagram of the cross-sectional structure along the AA direction.

[0024] Figure 8 The present invention Figure 6 Schematic diagram of the local enlarged structure at point E in the middle.

[0025] Fig. 9 It is a partial three-dimensional structural schematic diagram of the present invention.

[0026] Fig.10 It is a three-dimensional structural schematic diagram of the first sliding block, the hinge shaft and the spring rod of the present invention.

[0027] Fig.11 It is a schematic cross-sectional structural diagram of the fixing rod of the present invention.

[0028] Fig.12 The present invention Fig.10 Schematic diagram of the local enlarged structure at F in the middle.

[0029] Fig.13 It is a three-dimensional structural schematic diagram of the limiting groove and the connecting groove of the present invention.

[0030] In the figure: 1, base frame; 2, fixed rod; 3, first rotating rod; 4, second rotating rod; 5, first slider; 22, hinge axis; 31, first guide slot; 41, second guide slot; 6, moving rod; 61, first slide bar; 62, second slide bar; 63, connecting rod; 64, mounting bracket; 65, LED light; 66, rotating knob; 7, connecting bracket; 71, second slider; 72, fixing bar; 11, first mounting plate; 12, second mounting plate; 13, first carrier plate; 15, synchronization rod; 16, second carrier plate; 8, slide rail; 23, connecting slot; 9, spring plate; 91, spring rod; 92, locking spring; 24, limiting slot; 10, limiting nut. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are 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, and therefore cannot be understood as a limitation on the present invention.

[0033] Reference Figure 1-Figure 13, a photovoltaic cell printing screen appearance inspection device, comprising a T-shaped base frame 1, two fixed rods 2 and a moving unit, the moving unit comprising a first rotating rod 3 of a U-shaped structure, a second rotating rod 4 of a U-shaped structure and two first sliding blocks 5, the same side of the two fixed rods 2 are provided with a first slide groove, the two first sliding blocks 5 are respectively slidably connected in the two first slide grooves, a hinge shaft 22 is provided on the first sliding block 5, and the first sliding blocks 5 are respectively extended from both ends of the hinge shaft 22, the two ends of the first rotating rod 3 are respectively fixedly installed on the two hinge shafts 22, the two ends of the first rotating rod 3 are respectively arranged on the side where the two first sliding blocks 5 in the same moving unit are away from each other, the two ends of the second rotating rod 4 are respectively fixedly installed on the two hinge shafts 22, the two ends of the second rotating rod 4 are respectively arranged on the side where the two first sliding blocks 5 in the same moving unit are close to each other, a first guide groove 31 of a U-shaped structure is provided on the inner side wall of the first rotating rod 3, a second guide groove 41 of a U-shaped structure is provided on the outer side wall of the second rotating rod 4, and a second guide groove 41 of a U-shaped structure is provided between the first rotating rod 3 and the second rotating rod 4. Two sliding mechanisms are provided, and the sliding mechanism includes two moving rods 6. Both ends of the two moving rods 6 are respectively inserted into the first guide groove 31 and the second guide groove 41. The two moving rods 6 are located in the first guide groove 31 and are fixedly installed with the first sliding rod 61. The two moving rods 6 are located in the second guide groove 41 and are fixedly installed with the second sliding rod 62. A connecting rod 63 is fixedly installed on one side of the two moving rods 6. The two connecting rods 63 extend out of the first sliding groove. An illumination mechanism is provided on the connecting rod 63. A printing screen is provided between the two fixed rods 2. The printing screen includes an outer frame and a mesh. The illumination mechanism is moved and moved along the first rotating rod 3 and the second rotating rod 4 so that it illuminates around the outer frame, which is convenient for checking the appearance defects of the two horizontal plates on the front side of the outer frame and the mesh. By rotating the moving unit to a specified angle, it is convenient to check the vertical plate on the outer frame. By rotating the sliding mechanism, the illumination mechanism is driven to move to the arc-shaped part of the first rotating rod 3 and the second rotating rod 4, which is convenient for checking the side wall of the outer frame, thereby solving the problem that it is difficult to check the defects of the outer frame in the prior art.

[0034] The lighting mechanism includes a C-shaped mounting frame 64 and an LED lamp 65. The mounting frame 64 is hinged to two movable rods 6 in the same sliding mechanism. The LED lamp 65 is hinged to the mounting frame 64. A rotating knob 66 ​​is provided on one side of the mounting frame 64. The rotating knob 66 ​​is fixedly connected to the LED lamp 65. The LED lamp 65 is driven to rotate by rotating the knob 66 ​​to adjust the angle of the LED lamp 65, which is helpful for checking the appearance defects of the screen.

[0035] There are two movable units on the two fixed rods 2, and the two movable units are symmetrically arranged. When the two movable units are on the same fixed rod 2, the lighting range is larger, the mesh can be illuminated, and the wrinkles on the mesh can be easily checked. The two single movable units are convenient for checking the two sides of the outer frame separately.

[0036] A C-shaped connecting frame 7 is fixedly installed on the side of the two fixing rods 2 that are away from each other, and an arc-shaped second slider 71 is fixedly installed on both ends of the same connecting frame 7. The two second sliders 71 are symmetrically arranged, and the two adjacent second sliders 71 on the two connecting frames 7 are fixedly connected by a fixing bar 72 with an arc structure. The connecting frame 7 and the fixing bar 72 are used to connect the two fixing rods 2.

[0037] Two base frames 1 are provided, and the sides of the two base frames 1 close to each other are rotatably connected with the first mounting plate 11 and the second mounting plate 12 respectively. The side of the first mounting plate 11 close to the second mounting plate 12 is fixedly installed with a first carrier plate 13 of a C-shaped structure. Two first carrier plates 13 are provided and are symmetrical to each other. Synchronous rods 15 are fixedly installed on the two first carrier plates 13. The sides of the two synchronous rods 15 away from the first mounting plate 11 are fixedly installed on the second mounting plate 12. The two synchronous rods 15 are slidably provided with a second carrier plate 16 of a C-shaped structure. The second carrier plate 16 corresponds to the first carrier plate 13 one by one. The sides of the two second carrier plates 16 away from each other are fixedly installed with a slide rail of an arc structure 8. The second slider 71 is slidably connected in the slide rail 8 on the same side. The first carrier plate 13 and the second carrier plate 16 are used to support the printing screen. By rotating the two connecting frames 7, the two fixing rods 2 are driven to rotate through the fixing bar 72, so as to facilitate further adjustment of the lighting angle. By moving the position of the printing screen, it is convenient to inspect the surface of the outer frame. By moving the printing screen to move it on the first carrier plate 13 and the second carrier plate 16, it is convenient to inspect the appearance defects of the outer frame through the gap between the first carrier plate 13 and the second carrier plate 16. The first mounting plate 11 and the second mounting plate 12 are used to flip the first carrier plate 13 and the second carrier plate 16, so as to facilitate inspection of the two horizontal plates and the mesh on the back of the screen.

[0038] The curvature of the slide rail 8 is greater than the curvature corresponding to the semicircle. The fixed bar 72 and the second slider 71 are an integrated structure. The second slider 71 is arranged in the slide rail 8. By rotating the fixed rod 2 at a specified angle, the second slider 71 rotates in the slide rail 8, thereby driving the mobile unit to flip. At this time, by rotating the mobile unit to rotate it around the hinge shaft 22 at a specified angle, it is aligned with another vertical plate on the front side of the outer frame.

[0039] A connecting groove 23 is provided on the side where the two fixed rods 2 are close to each other. The connecting groove 23 extends from one end of the hinge shaft 22 and is fixedly installed with a spring plate 9 of a C-shaped structure. Two through holes are provided on the spring plate 9. A spring rod 91 is provided on the spring plate 9. The spring rod 91 passes through the two through holes. A locking spring 92 is sleeved on the spring rod 91 and located inside the spring plate 9. A limiting groove 24 is provided on the side where the two fixed rods 2 are close to each other. The spring rod 91 is inserted into the limiting groove 24. When the moving unit is not rotated, the limiting groove 24 is used for the spring rod 91 is limited, and then the mobile unit is locked, and the spring rod 91 is pulled to disengage from the limiting groove 24, and the spring rod 91 is synchronously driven to rotate the specified angle by rotating the first rotating rod 3 and the second rotating rod 4 to a specified angle. When the first rotating rod 3 and the second rotating rod 4 are rotated to be perpendicular to the fixed rod 2, the spring rod 91 is inserted into the connecting groove 23, and then the mobile unit is locked. At this time, the mobile unit and the lighting mechanism are driven to move by moving the first slider 5, and then the vertical plate of the outer frame is checked, which is beneficial to improve stability and achieve better lighting effects.

[0040] The two synchronization rods 15 are both threaded with limit nuts 10, which are used to limit the second carrier plate 16 to prevent the printing screen from falling off due to excessive distance between the first carrier plate 13 and the second carrier plate 16.

[0041] The specific working principle and use method of the present invention are explained in detail below: When in use, the outer frame of the printing screen has a front and a back side, and both sides have two horizontal plates and two vertical plates, such as Figure 8 As shown, when the two LED lamps 65 are close to each other, the illumination range generated by the two LED lamps 65 is large. The illumination angle of the LED lamp 65 is changed by adjusting the rotating knob 66, so that the LED lamp 65 and the mesh cloth have an angle. By moving the position of the printing screen, it is convenient to check whether the mesh cloth has wrinkles. When the printing screen is in a fixed position, the LED lamp 65 illuminates the inner wall of the outer frame. By moving the two moving rods 6 along the first guide groove 31 and the second guide groove 41, the mounting plate and the LED lamp 65 are driven to move. When the LED lamp 65 moves to the specified position, the LED lamp 65 illuminates the upper surface of the outer frame horizontal plate. When the LED lamp 65 moves to the arc position of the first rotating rod 3 and the second rotating rod 4, it is convenient to check the side position of the outer frame horizontal plate.

[0042] When the inspection of the upper surface and the side of the horizontal plate of the outer frame is completed, the first rotating rod 3 and the second rotating rod 4 are rotated to make them perpendicular to the fixed rod 2. At the same time, the printing screen is moved into the second carrier plate 16, and the distance between the second carrier plate 16 and the first carrier plate 13 is increased, so that the mobile unit is located outside the vertical plate of the outer frame, and the arc-shaped parts of the first rotating rod 3 and the second rotating rod 4 are located between the first carrier plate 13 and the second carrier plate 16. At this time, the spring rod 91 is inserted into the connecting groove 23, and then the mobile unit is locked, which is conducive to improving stability and making the lighting effect better. At this time, the mobile unit is driven by moving the first slider 5. The unit and the lighting mechanism move, and the position of the lighting mechanism is adjusted to check the surface of the vertical plate on the left side of the outer frame. When the lighting mechanism moves to the arc-shaped part of the first rotating rod 3 and the second rotating rod 4, it is convenient to check the side wall of the vertical plate on the left side of the outer frame. By flipping the connecting frame 7, the fixing bar 72 is rotated in the slide rail 8, thereby driving the moving unit and the lighting mechanism to flip. At this time, the printing screen is moved to the first carrier plate 13, which is convenient for longitudinally checking the vertical plate on the right side of the outer frame. By flipping the first mounting plate 11 and the second mounting plate 12, the overall flipping is driven to facilitate inspection of the reverse side of the printing screen, thereby further improving the convenience of inspection.

[0043] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A photovoltaic cell printing screen appearance inspection device, comprising a T-shaped base frame (1), two fixing rods (2) and a moving unit, characterized in that: The mobile unit comprises a first rotating rod (3) of a U-shaped structure, a second rotating rod (4) of a U-shaped structure and two first sliding blocks (5); the first sliding grooves are respectively provided on the same side of the two fixed rods (2); the two first sliding blocks (5) are respectively slidably connected in the two first sliding grooves; a hinge shaft (22) is provided on the first sliding block (5); the first sliding blocks (5) are respectively extended from both ends of the hinge shaft (22); the two ends of the first rotating rod (3) are respectively fixedly mounted on the two hinge shafts (22); the two ends of the first rotating rod (3) are respectively arranged on the side of the two first sliding blocks (5) in the same mobile unit that are away from each other; the two ends of the second rotating rod (4) are respectively fixedly mounted on the two hinge shafts (22); the two ends of the second rotating rod (4) are respectively arranged on the side of the two first sliding blocks (5) in the same mobile unit that are close to each other; A first guide groove (31) of a U-shaped structure is provided on the inner side wall of the first rotating rod (3), a second guide groove (41) of a U-shaped structure is provided on the outer side wall of the second rotating rod (4), two sliding mechanisms are provided between the first rotating rod (3) and the second rotating rod (4), the sliding mechanisms comprising two moving rods (6), both ends of the two moving rods (6) are respectively inserted into the first guide groove (31) and the second guide groove (41), the two moving rods (6) are both fixedly installed with a first slide rod (61) and the two moving rods (6) are both fixedly installed with a second slide rod (62) and the two moving rods (6) are both fixedly installed with a connecting rod (63) on one side of the two moving rods (6), the two connecting rods (63) extend out of the first slide groove, and a lighting mechanism is provided on the connecting rod (63); The lighting mechanism comprises a C-shaped mounting frame (64) and an LED lamp (65); the mounting frame (64) is hinged to two movable rods (6) in the same sliding mechanism; the LED lamp (65) is hinged to the mounting frame (64); a rotating knob (66) is provided on one side of the mounting frame (64); and the rotating knob (66) is fixedly connected to the LED lamp (65); Two movable units are provided on the two fixed rods (2), and the two movable units are symmetrically arranged; A connecting frame (7) with a C-shaped structure is fixedly mounted on one side of the two fixing rods (2) that is away from each other, and a second sliding block (71) with an arc structure is fixedly mounted on both ends of the same connecting frame (7), the two second sliding blocks (71) are symmetrically arranged, and two adjacent second sliding blocks (71) on the two connecting frames (7) are fixedly connected via a fixing strip (72) with an arc structure; The base frames (1) are provided with two, and the sides of the two base frames (1) close to each other are rotatably connected with a first mounting plate (11) and a second mounting plate (12), and the side of the first mounting plate (11) close to the second mounting plate (12) is fixedly installed with a first carrier plate (13) with a C-shaped structure, and the first carrier plates (13) are provided with two and are symmetrical to each other, and the two first carrier plates (13) are fixedly installed with a synchronization rod (15), and the sides of the two synchronization rods (15) away from the first mounting plate (11) are fixedly installed on the second mounting plate (12), and the two synchronization rods (15) are slidably provided with a second carrier plate (16) with a C-shaped structure, and the second carrier plates (16) correspond to the first carrier plates (13) one by one, and the sides of the two second carrier plates (16) away from each other are fixedly installed with a slide rail (8) with an arc structure, and the second slider (71) is slidably connected in the slide rail (8) on the same side.

2. A photovoltaic cell printing screen appearance inspection device according to claim 1, characterized in that: The curvature of the slide rail (8) is greater than the curvature corresponding to the semicircle; the fixing bar (72) and the second sliding block (71) are an integrated structure; and the second sliding block (71) is arranged inside the slide rail (8).

3. The photovoltaic cell printing screen appearance inspection device according to claim 1, characterized in that: A connecting groove (23) is provided on one side of the two fixing rods (2) close to each other. One end of the hinge shaft (22) extends out of the connecting groove (23) and is fixedly mounted with a spring plate (9) of a C-shaped structure. Two through holes are provided on the spring plate (9). A spring rod (91) is provided on the spring plate (9). The spring rod (91) passes through the two through holes. A locking spring (92) is sleeved on the spring rod (91) and is located inside the spring plate (9). A limiting groove (24) is provided on one side of the two fixing rods (2) close to each other. The spring rod (91) is inserted into the limiting groove (24).

4. The photovoltaic cell printing screen appearance inspection device according to claim 1, characterized in that: The two synchronization rods (15) are both provided with threads, and the two synchronization rods (15) are both threadedly connected with limit nuts (10).

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