Photovoltaic glass silk screen printing glass fixing device and fixing method thereof

Abstract

This invention discloses a glass fixing device and method for photovoltaic glass screen printing, relating to the technical field of glass fixing devices. To address the problem that existing glass screen printing devices lack an effective fixing mechanism for the glass body during processing, leading to easy glass displacement during loading and poor stability during screen printing, resulting in poor screen printing accuracy, the invention includes a horizontal base. A hydraulic cylinder is installed below the horizontal base, with the piston rod of the hydraulic cylinder fixedly connected to the bottom of the horizontal base by screws. A first frame plate and a second frame plate are installed above the horizontal base, and eight conveying rollers are installed on one outer wall of the first frame plate. The invention also includes two top frames, which are welded to the upper end of the first frame plate. A first electric cylinder and a second electric cylinder are respectively installed at the upper end of the two top frames, and a support seat is welded to the piston rod of each of the first and second electric cylinders.

Description

Technical Field

[0001] This invention relates to the field of glass fixing device technology, specifically to a glass fixing device and fixing method for photovoltaic glass screen printing. Background Technology

[0002] In the manufacturing process of solar panels, electrodes need to be printed on glass. However, conventional printing methods are not suitable for solar glass, so screen printing is required to print the electrodes on photovoltaic glass.

[0003] For example, announcement number CN206067136U (titled "A Glass Screen Printing Device") includes a worktable for placing glass and a movable frame slidably connected to the worktable. The movable frame has support legs on both sides, and a crossbeam spanning the two support legs is mounted on each support leg. Several horizontally spaced, evenly arranged lifting cylinders are mounted on the crossbeam. The piston rod of each lifting cylinder is connected to a connector at its lower end. A groove is formed on the lower side of the connector for holding a clamp for holding a scraper. The scraper, in conjunction with the back-and-forth movement of the movable frame on the worktable, evenly spreads the pigment on the glass placed on the worktable. This design is simple in structure, low in cost, and suitable for large-scale production in small and medium-sized enterprises. The movable frame for screen printing in this solution has a simple structure, with both sides connected to guide rails. Lifting cylinders are connected to the crossbeams, and the scraper for screen printing is connected to the lower side of the lifting cylinders. Through the up-and-down movement of the lifting cylinders and the back-and-forth movement of the movable frame, the scraper evenly spreads the pigment, completing the screen printing. The simple structure of the equipment also results in low manufacturing costs, making it suitable for small and medium-sized enterprises.

[0004] The aforementioned glass screen printing device lacks an effective fixing mechanism for the glass body during glass processing, which makes the glass prone to displacement during feeding and results in poor stability during the screen printing process, leading to poor accuracy in glass screen printing. To address this, we provide a glass fixing device and fixing method for photovoltaic glass screen printing. Summary of the Invention

[0005] The purpose of this invention is to provide a glass fixing device and fixing method for photovoltaic glass screen printing, so as to solve the problem mentioned in the background art that the existing glass screen printing device lacks an effective fixing mechanism for the glass body when processing glass, which makes the glass prone to displacement during feeding and has poor stability during the screen printing process, resulting in poor glass screen printing accuracy.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a glass fixing device for screen printing of photovoltaic glass, including a horizontal base, a hydraulic cylinder is provided below the horizontal base, the piston rod of the hydraulic cylinder is fixedly connected to the bottom of the horizontal base by screws, a first frame plate and a second frame plate are provided above the horizontal base, and eight conveying rollers are provided on one outer wall of the first frame plate.

[0007] Also includes:

[0008] The top frame is welded and set at the upper end of the first frame plate. There are two top frames, and the upper ends of the two top frames are respectively set with a first electric cylinder and a second electric cylinder. The piston rods of the first electric cylinder and the second electric cylinder are welded with a support seat. The interior of the two support seats is provided with an internal threaded through hole, and the interior of the two internal threaded through holes is movably provided with a threaded locking rod.

[0009] An extension support plate is welded to the bottom of the second frame plate, and a guide groove is provided inside the horizontal base. A guide rod is provided inside the guide groove, and a sliding block is movably sleeved on the guide rod. The sliding block and the extension support plate are an integral structure. A distribution box is provided on one side of the guide groove.

[0010] The drive motor is mounted on the outer wall of the other side of the first frame plate. The output terminal of the junction box is electrically connected to the input terminal of the distribution box, and the output terminal of the distribution box is electrically connected to the input terminal of the drive motor.

[0011] The roller perforation is set inside the second frame plate. There are eight roller perforations. The roller perforation is fixed with a bearing seat inside the roller perforation by nail-free adhesive. The conveying roller is rotatably connected to the roller perforation through the bearing seat.

[0012] The hollow inner cavity is located inside the first frame plate, and eight gear disks are arranged inside the hollow inner cavity. The eight gear disks are integrated with eight conveying rollers, and transmission chains are meshed on the eight gear disks.

[0013] Preferably, an electromagnet is fixedly installed on the bottom inner wall of the guide groove with nail-free adhesive, and the connecting slider is fixedly connected to the guide groove by adsorption through the electromagnet. A switch is provided between the distribution box and the guide groove.

[0014] Preferably, the output terminal of the distribution box is electrically connected to the input terminal of the switch, and the output terminal of the switch is electrically connected to the input terminal of the electromagnet.

[0015] Preferably, two supporting plates are provided at the connection position between the first frame plate and the horizontal base, and the two ends of the two supporting plates are welded to the first frame plate and the horizontal base respectively.

[0016] Preferably, a linear bearing is fixedly installed at the center of the inner part of the sleeve slider by screws, and the sleeve slider is movably connected to the guide inner rod through the linear bearing.

[0017] Preferably, the hydraulic cylinder is provided with support plates on both sides, and each of the two support plates has an internal groove. A bottom support block is movably inserted into each of the two internal grooves, and the two bottom support blocks are integrally formed with the horizontal base.

[0018] Preferably, a first extension shaft and a second extension shaft are respectively provided at the center of the two gear disks, and the first extension shaft passes through the hollow inner cavity and is welded to the output shaft of the drive motor.

[0019] Preferably, one end of each of the two threaded locking rods is provided with a rubber abutment, which is fixedly connected to the threaded locking rod by a nail-free adhesive.

[0020] Preferably, a limiting end plate is welded to one end of the conveying roller, and the size of the limiting end plate is larger than the diameter of the roller perforation.

[0021] Preferably, the fixing method of the glass fixing device for photovoltaic glass screen printing includes the following steps:

[0022] Step 1: Connect both ends of the device to the photovoltaic glass processing production line and place the device below the screen printing machine. The photovoltaic glass enters from one end of the device and is placed between the first frame plate and the second frame plate. The drive motor drives the eight conveyor rollers to rotate through the transmission chain and the gear disk to carry the photovoltaic glass for feeding.

[0023] Step 2: Pre-adjustment before screen printing. The support seat on the first electric cylinder is adjusted to a suitable position according to the thickness of the photovoltaic glass. The distance between the two threaded locking rods is adjusted to be equal to the length of the photovoltaic glass. The second frame plate is adjusted to move horizontally by sliding the connecting slider in the guide groove. The distance between the first frame plate and the second frame plate is adjusted to be equal to the width of the photovoltaic glass.

[0024] Step 3: After adjustment, the eight conveying rollers drive the photovoltaic glass to move forward, so that the photovoltaic glass moves to the position where it is abutted by a threaded locking rod, thereby restricting the further movement of the photovoltaic glass. Then, the second electric cylinder drives another support seat and the threaded locking rod to the position where they abut against the other end of the photovoltaic glass, so that the photovoltaic glass to be screen-printed is fixed in the position between the first frame plate and the second frame plate and between the two threaded locking rods.

[0025] Step 4: The horizontal base is raised and lowered by a hydraulic cylinder, so that the fixed photovoltaic glass is moved to the processing height required by the screen printing machine, and the screen printing machine performs screen printing on the fixed photovoltaic glass.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. In this invention, the support seat on the first electric cylinder is adjusted to a suitable position according to the thickness of the photovoltaic glass. The distance between the two threaded locking rods is adjusted to be equal to the length of the photovoltaic glass. By sliding the connecting slider in the guide groove, the second frame plate can be adjusted horizontally, and the distance between the first frame plate and the second frame plate is adjusted to be equal to the width of the photovoltaic glass. This allows for the fixing of photovoltaic glass of different sizes before screen printing. Eight conveying rollers drive the photovoltaic glass to move forward, so that the photovoltaic glass moves to the position where it is abutted by one of the threaded locking rods, thereby restricting further movement of the photovoltaic glass. Then, the second electric cylinder drives another support seat and the threaded locking rod to the position where they abut against the other end of the photovoltaic glass, so that the photovoltaic glass to be screen printed is fixed between the first frame plate and the second frame plate and between the two threaded locking rods. This improves the stability of the photovoltaic glass screen printing process and overcomes the problem that existing glass screen printing devices lack an effective fixing mechanism for the glass body during processing, which makes the glass prone to displacement during loading and results in poor stability during the screen printing process, leading to poor accuracy in glass screen printing.

[0028] 2. The drive motor drives eight conveying rollers to rotate simultaneously through the transmission chain and gear disk, carrying photovoltaic glass for feeding. After the photovoltaic glass is clamped and fixed, the drive motor is turned off, stopping the conveying rollers from rotating again, thus achieving the purpose of generating electricity simultaneously while conveying photovoltaic glass and reducing the overall energy consumption of the device. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the glass fixing device for screen printing on photovoltaic glass according to the present invention;

[0030] Figure 2 This is a schematic diagram of the first frame plate and conveying roller structure of the present invention;

[0031] Figure 3 This is a schematic diagram of the internal structure of the first frame plate of the present invention;

[0032] Figure 4 This is a schematic diagram of the connection structure between the threaded locking rod and the support seat of the present invention;

[0033] Figure 5 This is a schematic diagram of the connection structure between the second frame plate and the horizontal base of the present invention;

[0034] In the diagram: 1. Horizontal base; 2. Support plate; 3. Hydraulic cylinder; 4. First frame plate; 5. Second frame plate; 6. Support connecting plate; 7. Distribution box; 8. Extension support plate; 9. Guide groove; 10. Switch; 11. Drive motor; 12. Conveyor roller; 13. Limiting end plate; 14. Top frame; 15. First electric cylinder; 16. Second electric cylinder; 17. Support seat; 18. Threaded locking rod; 20. Junction box; 21. Hollow inner cavity; 22. Gear disk; 23. Transmission chain; 24. First extension shaft; 25. Second extension shaft; 26. Internal threaded through hole; 27. Rubber abutment joint; 28. Internal groove; 29. ​​Bottom support block; 30. Guide inner rod; 31. Sleeve slider; 32. Linear bearing; 33. Electromagnet; 34. Roller perforation; 35. Bearing seat. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0036] Please see Figure 1-5 An embodiment of the present invention provides a glass fixing device for screen printing of photovoltaic glass, including a horizontal base 1, a hydraulic cylinder 3 is arranged below the horizontal base 1, the piston rod of the hydraulic cylinder 3 is fixedly connected to the bottom of the horizontal base 1 by screws, a first frame plate 4 and a second frame plate 5 are arranged above the horizontal base 1, and eight conveying rollers 12 are arranged on one outer wall of the first frame plate 4.

[0037] Also includes:

[0038] The top frame 14 is welded to the upper end of the first frame plate 4. There are two top frames 14, and the upper ends of the two top frames 14 are respectively provided with a first electric cylinder 15 and a second electric cylinder 16. The piston rods of the first electric cylinder 15 and the second electric cylinder 16 are each welded with a support seat 17. The interior of the two support seats 17 is provided with an internal threaded through hole 26. The interior of the two internal threaded through holes 26 is movably provided with a threaded locking rod 18.

[0039] The extension support plate 8 is welded to the bottom of the second frame plate 5, and the horizontal base 1 has a guide groove 9 inside. The guide groove 9 has a guide inner rod 30 inside. A sliding block 31 is movably sleeved on the guide inner rod 30. The sliding block 31 and the extension support plate 8 are an integral structure. A distribution box 7 is provided on one side of the guide groove 9.

[0040] The drive motor 11 is located on the outer wall of the other side of the first frame plate 4. The output terminal of the junction box 20 is electrically connected to the input terminal of the distribution box 7, and the output terminal of the distribution box 7 is electrically connected to the input terminal of the drive motor 11.

[0041] Eight roller perforations 34 are provided inside the second frame plate 5, and bearing seats 35 are fixed inside the roller perforations 34 by nail-free adhesive. The conveying roller 12 is rotatably connected to the roller perforations 34 through the bearing seats 35.

[0042] The hollow inner cavity 21 is located inside the first frame plate 4, and eight gear disks 22 are arranged inside the hollow inner cavity 21. The eight gear disks 22 are integrated with the eight conveying rollers 12, and transmission chains 23 are sleeved and meshed on the eight gear disks 22.

[0043] Please see Figure 1 and Figure 5 An electromagnet 33 is fixedly installed on the bottom inner wall of the guide groove 9 with nail-free adhesive. The connecting slider 31 is fixedly connected to the guide groove 9 by the electromagnet 33. A switch 10 is installed between the distribution box 7 and the guide groove 9. The electromagnet 33 fixedly installed on the bottom inner wall of the guide groove 9 with nail-free adhesive plays the role of adsorbing and fixing the connecting slider 31 to position the second frame plate 5.

[0044] Please see Figure 1 and Figure 5 The output terminal of the distribution box 7 is electrically connected to the input terminal of the switch 10, and the output terminal of the switch 10 is electrically connected to the input terminal of the electromagnet 33.

[0045] Please see Figure 1 Two supporting plates 6 are provided at the connection position between the first frame plate 4 and the horizontal base 1. The two ends of the two supporting plates 6 are welded to the first frame plate 4 and the horizontal base 1 respectively. The two supporting plates 6 provided at the connection position between the first frame plate 4 and the horizontal base 1 serve to support the first frame plate 4.

[0046] Please see Figure 5 A linear bearing 32 is fixedly installed at the center of the inner part of the sleeve slider 31 by screws. The sleeve slider 31 is connected to the guide inner rod 30 by the linear bearing 32. The linear bearing 32 fixed at the center of the inner part of the sleeve slider 31 by screws plays a role in assisting the smooth movement of the sleeve slider 31 and the guide inner rod 30.

[0047] Please see Figure 5 The hydraulic cylinder 3 is provided with support plates 2 on both sides. Each support plate 2 has an internal groove 28. Each internal groove 28 has a bottom support block 29 that is movably inserted into it. Both bottom support blocks 29 are integral with the horizontal base 1. The support plates 2 on both sides of the hydraulic cylinder 3 serve to support the bottom support blocks 29.

[0048] Please see Figure 2 and Figure 3The two gear disks 22 are respectively provided with a first extension shaft 24 and a second extension shaft 25 at their center positions. The first extension shaft 24 passes through the hollow inner cavity 21 and is welded to the output shaft of the drive motor 11. The first extension shaft 24 and the second extension shaft 25 respectively provided at the center positions of the two gear disks 22 serve to extend the transmission connection.

[0049] Please see Figure 4 Each of the two threaded locking rods 18 has a rubber abutment 27 at one end. The rubber abutment 27 is fixedly connected to the threaded locking rod 18 by a nail-free adhesive. The rubber abutment 27 at one end of each of the two threaded locking rods 18 serves to provide elastic abutment and fixation.

[0050] Please see Figure 1 A limiting end plate 13 is welded to one end of the conveying roller 12. The size of the limiting end plate 13 is larger than the diameter of the roller perforation 34. The limiting end plate 13 welded to one end of the conveying roller 12 plays the role of limiting the movement of the second frame plate 5.

[0051] Please see Figure 1-5 A method for fixing a glass fixing device for screen printing on photovoltaic glass includes the following steps:

[0052] Step 1: Connect both ends of the device to the photovoltaic glass processing production line and place the device below the screen printing machine. The photovoltaic glass enters from one end of the device and is placed between the first frame plate 4 and the second frame plate 5. The drive motor 11 drives the eight conveying rollers 12 to rotate through the transmission chain 23 and the gear disk 22 to carry the photovoltaic glass for feeding.

[0053] Step 2: Pre-adjustment before screen printing. The support seat 17 on the first electric cylinder 15 is adjusted to a suitable position according to the thickness of the photovoltaic glass. The distance between the two threaded locking rods 18 is adjusted to be equal to the length of the photovoltaic glass. By sliding the connecting slider 31 in the guide groove 9, the second frame plate 5 can be adjusted horizontally, and the distance between the first frame plate 4 and the second frame plate 5 is adjusted to be equal to the width of the photovoltaic glass.

[0054] Each electric cylinder is equipped with a remote control. Manual operation of the remote control allows the electric cylinder to raise and lower the support seat, with the raising / lowering length determined by the thickness of the photovoltaic glass. Manual adjustment of the screw is also possible; since the length of a batch of photovoltaic glass is uniform, only one adjustment is needed for the collective fixing and processing of this batch. Manually pushing the sliding support plate 8 causes the connecting slider 31 to rotate, thereby allowing the second frame plate 5 to move and adjust the distance between it and the first frame plate 4. The width of the photovoltaic glass is known to the staff, so the distance between the first frame plate 4 and the second frame plate 5 can be adjusted manually to match the width of the photovoltaic glass. This adjustment only requires comparing a piece of photovoltaic glass before processing. Furthermore, if the photovoltaic glass is placed in a different position, it won't fit properly between the first frame plate 4 and the second frame plate 5, indicating incorrect placement. Therefore, after adjusting the distance, the photovoltaic glass can be neatly conveyed on the conveyor roller 12. If there are 1000 pieces of 50cm glass and 1000 pieces of 100cm glass in a batch, then only the distance between the first frame plate 4 and the second frame plate 5 needs to be adjusted twice—once for 50cm and once for 100cm. This eliminates the need to adjust the distance for each piece of glass, improving the efficiency of the pre-screening fixing operation for the photovoltaic glass.

[0055] Step 3: After adjustment, the eight conveying rollers 12 drive the photovoltaic glass to move forward, so that the photovoltaic glass moves to the position where it is abutted by a threaded locking rod 18, thereby restricting the further movement of the photovoltaic glass. Then, the second electric cylinder 16 drives another support seat 17 and the threaded locking rod 18 to the position where they abut against the other end of the photovoltaic glass, so that the photovoltaic glass to be screen-printed is fixed in the position between the first frame plate 4 and the second frame plate 5 and between the two threaded locking rods 18.

[0056] Before the photovoltaic glass is delivered onto the conveyor roller 12, the first electric cylinder 15 has already driven the threaded locking rod 18 below it to descend. After the photovoltaic glass is delivered onto the conveyor roller 12, the photovoltaic glass will be stopped by the threaded locking rod 18 below the first electric cylinder 15 and cannot be conveyed any further. At this time, the remote control can be operated to make the second electric cylinder 16 move the threaded locking rod 18 below it to the position of contact with the other end of the photovoltaic glass, thereby locking the photovoltaic glass. Throughout the process, since the distance between the two threaded locking rods 18 has been manually adjusted in advance, the glass will not be knocked, ensuring the integrity of the glass.

[0057] Step 4: The horizontal base 1 is raised and lowered by the hydraulic cylinder 3, so that the fixed photovoltaic glass is moved to the processing height position required by the screen printing machine, and the fixed photovoltaic glass is screen printed by the screen printing machine.

[0058] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A glass fixing device for screen printing on photovoltaic glass, comprising a horizontal base (1), a hydraulic cylinder (3) is provided below the horizontal base (1), the piston rod of the hydraulic cylinder (3) is fixedly connected to the bottom of the horizontal base (1) by screws, a first frame plate (4) and a second frame plate (5) are provided above the horizontal base (1), and eight conveying rollers (12) are provided on one side outer wall of the first frame plate (4); Its features are: Also includes: The top frame (14) is welded to the upper end of the first frame plate (4). There are two top frames (14), and the upper ends of the two top frames (14) are respectively provided with a first electric cylinder (15) and a second electric cylinder (16). The piston rods of the first electric cylinder (15) and the second electric cylinder (16) are both welded with a support seat (17). The interior of the two support seats (17) is provided with an internal threaded through hole (26). The interior of the two internal threaded through holes (26) is movably provided with a threaded locking rod (18). An extension support plate (8) is welded to the bottom of the second frame plate (5), and a guide groove (9) is provided inside the horizontal base (1). A guide inner rod (30) is provided inside the guide groove (9), and a sliding block (31) is movably sleeved on the guide inner rod (30). The sliding block (31) and the extension support plate (8) are an integral structure. A distribution box (7) is provided on one side of the guide groove (9). The drive motor (11) is located on the outer wall of the other side of the first frame plate (4). The output end of the junction box (20) is electrically connected to the input end of the distribution box (7). The output end of the distribution box (7) is electrically connected to the input end of the drive motor (11). The roller perforation (34) is set inside the second frame plate (5). There are eight roller perforations (34), and the roller perforation (34) is fixed with a bearing seat (35) by a nail-free adhesive. The conveying roller (12) is rotatably connected to the roller perforation (34) through the bearing seat (35). The hollow inner cavity (21) is located inside the first frame plate (4), and eight gear disks (22) are provided inside the hollow inner cavity (21). The eight gear disks (22) are integrated with eight conveying rollers (12), and transmission chains (23) are sleeved and meshed on the eight gear disks (22).

2. The glass fixing device for photovoltaic glass screen printing according to claim 1, characterized in that: An electromagnet (33) is fixedly installed on the bottom inner wall of the guide groove (9) with nail-free adhesive. The sliding block (31) is fixedly connected to the guide groove (9) by electromagnet (33). A switch (10) is installed between the distribution box (7) and the guide groove (9).

3. The glass fixing device for photovoltaic glass screen printing according to claim 2, characterized in that: The output terminal of the distribution box (7) is electrically connected to the input terminal of the switch (10), and the output terminal of the switch (10) is electrically connected to the input terminal of the electromagnet (33).

4. The glass fixing device for photovoltaic glass screen printing according to claim 3, characterized in that: Two supporting connecting plates (6) are provided at the connection position between the first frame plate (4) and the horizontal base (1). The two ends of the two supporting connecting plates (6) are welded to the first frame plate (4) and the horizontal base (1) respectively.

5. The glass fixing device for photovoltaic glass screen printing according to claim 4, characterized in that: A linear bearing (32) is fixedly installed at the center of the inner part of the sleeve slider (31) by screws, and the sleeve slider (31) is movably connected to the guide inner rod (30) through the linear bearing (32).

6. The glass fixing device for photovoltaic glass screen printing according to claim 5, characterized in that: The hydraulic cylinder (3) is provided with support plates (2) on both sides. The two support plates (2) are provided with internal grooves (28). The two internal grooves (28) are movably connected with bottom support blocks (29). The two bottom support blocks (29) are integrated with the horizontal base (1).

7. A glass fixing device for screen printing on photovoltaic glass according to claim 6, characterized in that: A first extension shaft (24) and a second extension shaft (25) are respectively provided at the center of the two gear disks (22). The first extension shaft (24) passes through the hollow inner cavity (21) and is welded to the output shaft of the drive motor (11).

8. The glass fixing device for photovoltaic glass screen printing according to claim 7, characterized in that: Each of the two threaded locking rods (18) is provided with a rubber abutment (27) at one end, and the rubber abutment (27) is fixedly connected to the threaded locking rod (18) by a nail-free adhesive.

9. A glass fixing device for screen printing on photovoltaic glass according to claim 8, characterized in that: One end of the conveying roller (12) is welded with a limiting end plate (13), the size of which is larger than the diameter of the roller perforation (34).

10. The fixing method of the glass fixing device for photovoltaic glass screen printing according to claim 9, characterized in that: Includes the following steps: Step 1: Connect both ends of the device to the photovoltaic glass processing production line and place the device below the screen printing machine. The photovoltaic glass enters from one end of the device and is placed between the first frame plate (4) and the second frame plate (5). The drive motor (11) drives the eight conveying rollers (12) to rotate through the transmission chain (23) and the gear disk (22) to carry the photovoltaic glass for feeding. Step 2: Pre-adjustment before screen printing. The support seat (17) on the first electric cylinder (15) is adjusted to a suitable position according to the thickness of the photovoltaic glass. The distance between the two threaded locking rods (18) is adjusted to be equal to the length of the photovoltaic glass. The second frame plate (5) is adjusted to be horizontally movable by the sliding movement of the connecting slider (31) in the guide groove (9). The distance between the first frame plate (4) and the second frame plate (5) is adjusted to be equal to the width of the photovoltaic glass. Step 3: After adjustment, the eight conveying rollers (12) drive the photovoltaic glass to move forward, so that the photovoltaic glass moves to the position where it is abutted by a threaded locking rod (18), thereby restricting the further movement of the photovoltaic glass. Then, the second electric cylinder (16) drives another support seat (17) and the threaded locking rod (18) to the position where they abut against the other end of the photovoltaic glass, so that the photovoltaic glass to be screen-printed is fixed between the first frame plate (4) and the second frame plate (5) and between the two threaded locking rods (18). Step 4: The horizontal base (1) is raised and lowered by the hydraulic cylinder (3), so that the fixed photovoltaic glass is moved to the processing height position required by the screen printing machine, and the fixed photovoltaic glass is screen printed in cooperation with the screen printing machine.

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