Photovoltaic cell screen printing device

Abstract

The utility model discloses a photovoltaic cell screen printing device which comprises a machine frame and a fixing support, the fixing support is arranged outside the machine frame, a supporting frame is arranged outside the fixing support, a rotating disc is arranged outside the supporting frame, an L-shaped frame is installed on the side wall of the top end of the fixing support, and the L-shaped frame is arranged on the side wall of the top end of the fixing support. A conveyor is installed at the top end of the machine frame, a movable support is installed at the bottom end of the L-shaped frame, an air cylinder is arranged outside the movable support, a mechanical arm is arranged outside the rotating disc, and a printing head is installed at the top end of the mechanical arm. According to the utility model, the silk-screen printing device can conveniently convey the photovoltaic cells, the convenience of conveying the photovoltaic cells by the silk-screen printing device is improved, the silk-screen printing device can print a plurality of groups of photovoltaic cells in sequence, the printing time of each group of photovoltaic cells is shortened, and the printing efficiency is improved. And the printing efficiency of the silk-screen printing device is improved.

Description

Technical Field

[0001] This utility model relates to the field of screen printing equipment technology, specifically a screen printing device for photovoltaic cells. Background Technology

[0002] As a key piece of equipment in photovoltaic cell production, the screen printing equipment for photovoltaic cells is closely related to the optimization needs of photovoltaic cell electrode preparation processes. Screen printing technology forms electrodes by printing conductive paste onto the surface of the cell, which directly affects the current collection efficiency and reliability of the cell. As the photovoltaic industry increases its requirements for cost reduction and efficiency improvement, the equipment needs to take into account printing accuracy, efficiency and yield in order to meet the needs of large-scale mass production.

[0003] As disclosed in CN222473634U, a photovoltaic cell screen printing device includes a bottom frame, a placement groove on the top of the bottom frame, a slot on the rear side of the bottom frame, the slot extending into the bottom frame, the slot being located at the bottom of the placement groove, a photovoltaic cell body being placed inside the slot, a printing plate being placed inside the placement groove, and two support plates being provided on the top of the bottom frame, with two support rods fixedly connected to the bottom of each of the two support plates.

[0004] Although it achieves this through the setting of printing components and collection frames, the setting of printing components allows the paste to be evenly sprayed onto one side of the scraper through the discharge head when printing the photovoltaic cell body. This makes it convenient for the scraper to print the photovoltaic cell body. At the same time, the excess paste can be scraped to one side of the bottom frame and collected by the inclined groove and collection frame. This eliminates the need for manual cleaning of the printing plate, reducing the labor intensity. At the same time, the collection device placed at the bottom of the collection frame can collect the paste and reuse it, reducing the waste of paste.

[0005] However, this does not solve the problem that existing screen printing devices of this type are generally not conducive to the convenient transport of photovoltaic cells during use, which affects the convenience of transporting photovoltaic cells and the ability to print multiple sets of photovoltaic cells sequentially, thus affecting the printing time between each set of photovoltaic cells and the printing efficiency of the screen printing device. Utility Model Content

[0006] The purpose of this utility model is to provide a photovoltaic cell screen printing device to solve the problems mentioned in the background art, such as the inconvenience of screen printing devices in transporting photovoltaic cells, which affects the convenience of screen printing devices in transporting photovoltaic cells, the inconvenience of screen printing devices in printing multiple groups of photovoltaic cells sequentially, which affects the printing time between each group of photovoltaic cells, and the printing efficiency of screen printing devices.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a photovoltaic cell screen printing device, comprising a frame and a fixed support. The fixed support is externally mounted on the frame, a support frame is externally mounted on the fixed support, and a rotating disk is externally mounted on the support frame. An L-shaped frame is mounted on the top side wall of the fixed support. A conveyor is mounted on the top of the frame, and a movable support is mounted on the bottom of the L-shaped frame. A cylinder is externally mounted on the movable support. A robotic arm is externally mounted on the rotating disk, and a printing head is mounted on the top of the robotic arm. Multiple sets of molds at equal intervals are movably mounted on the top of the rotating disk. Photoelectric sensors are symmetrically mounted on the side wall of the frame. A rotating shaft is mounted on one side of the conveyor. A servo motor is mounted on the bottom of the frame, and a synchronous pulley assembly is mounted on the output end of the servo motor. The end of the synchronous pulley assembly furthest from the servo motor is connected to the rotating shaft.

[0008] Preferably, a suction cup is installed at the output end of the cylinder, and a power motor is installed on the side wall of the movable bracket.

[0009] Preferably, the output end of the power motor is equipped with a threaded rod, which extends into the interior of the movable bracket and is movably connected thereto.

[0010] Preferably, a threaded sleeve is fitted on the surface of the threaded rod, the threaded rod and the threaded sleeve are threadedly connected, the threaded sleeve is connected to the cylinder, and a central control shaft is installed at the bottom center of the rotating disk.

[0011] Preferably, the central control shaft extends to the top of the support frame and is movably connected thereto, and a support seat is installed at the top of the support frame inside the central control shaft.

[0012] Preferably, the support base extends to the outside of the central control shaft, the support base is fixedly connected to the support frame, the support base is connected to the robot arm, and a stepper motor is installed at the top of the external support frame of the central control shaft.

[0013] Preferably, a worm gear is installed at the output end of the stepper motor, a worm wheel is fitted on the surface of the central control shaft, the worm wheel meshes with the worm gear, a sliding groove is provided at the bottom end of the external rotating disk of the central control shaft, and multiple sets of equally spaced support slide heads are installed at the top end of the external support frame of the stepper motor, the support slide heads are slidably connected to the sliding groove.

[0014] Preferably, a control panel is installed on the side of the top of the fixed bracket away from the L-shaped frame, and the output end of the control panel is electrically connected to the input end of the robot arm, cylinder, printing head, servo motor, photoelectric sensor, suction cup, stepper motor, and power motor.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the screen printing device not only realizes the convenient transportation of photovoltaic cells, improving the convenience of the screen printing device in transporting photovoltaic cells, but also realizes the screen printing device to print multiple groups of photovoltaic cells in sequence, shortening the printing time between each group of photovoltaic cells and improving the printing efficiency of the screen printing device.

[0016] (1) The synchronous belt pulley assembly is driven by a servo motor to rotate. The synchronous belt pulley assembly drives the rotating shaft to rotate, and the rotating shaft drives the conveyor to rotate. The photovoltaic cells are placed on the surface of the conveyor in sequence, so that the conveyor drives multiple sets of photovoltaic cells to move. When the photoelectric sensor senses the photovoltaic cell, the control panel opens the cylinder and suction cup, so that the suction cup adsorbs and moves the photovoltaic cell to the surface of the mold for placement. The robot arm is opened, and the robot arm drives the printing head to move to the surface of the photovoltaic cell for printing. This facilitates the convenient transportation of photovoltaic cells and realizes the convenient transportation of photovoltaic cells by the screen printing device, improving the convenience of the screen printing device in transporting photovoltaic cells.

[0017] (2) The stepper motor drives the worm gear to rotate, which in turn drives the worm wheel to rotate. The worm wheel drives the central control shaft, the rotating disk, and the mold to rotate, so that the mold that has been placed is moved to one side, and the mold to be placed is moved to the placement area. The power motor drives the threaded rod to rotate, which drives the threaded sleeve to move. The threaded sleeve drives the cylinder and the suction cup to move, so that the suction cup moves the adsorbed photovoltaic cell to the surface of the mold for placement. The robot arm drives the printing head to print the photovoltaic cells in sequence, which facilitates the sequential printing of multiple sets of photovoltaic cells. This realizes that the screen printing device can print multiple sets of photovoltaic cells in sequence, shortens the printing time between each set of photovoltaic cells, and improves the printing efficiency of the screen printing device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a front view structural diagram of the present utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the fixed bracket of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the mobile support frame of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the support frame of this utility model;

[0023] Figure 6This is a three-dimensional structural diagram of the rotating disk of this utility model;

[0024] Figure 7 This is a three-dimensional structural diagram of the mold of this utility model.

[0025] In the diagram: 1. Frame; 2. Fixed bracket; 3. Support frame; 4. Rotary disk; 5. L-shaped frame; 6. Conveyor; 7. Moving bracket; 8. Control panel; 9. Robotic arm; 10. Mold; 11. Cylinder; 12. Printing head; 13. Servo motor; 14. Synchronous belt pulley assembly; 15. Rotary shaft; 16. Photoelectric sensor; 17. Suction cup; 18. Central control shaft; 19. Stepper motor; 20. Worm gear; 21. Worm wheel; 22. Support base; 23. Power motor; 24. Threaded rod; 25. Threaded sleeve; 26. Slide groove; 27. Support slide head. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] Please see Figure 1-7 An embodiment of this utility model provides a photovoltaic cell screen printing device, including a frame 1 and a fixed support 2. The fixed support 2 is provided on the outside of the frame 1, the support frame 3 is provided on the outside of the fixed support 2, the rotating disk 4 is provided on the outside of the support frame 3, an L-shaped frame 5 is installed on the top side wall of the fixed support 2, a conveyor 6 is installed on the top of the frame 1, a movable support 7 is installed on the bottom of the L-shaped frame 5, a cylinder 11 is provided on the outside of the movable support 7, a robot arm 9 is provided on the outside of the rotating disk 4, a printing head 12 is installed on the top of the robot arm 9, multiple sets of molds 10 with equal spacing are movably installed on the top of the rotating disk 4, photoelectric sensors 16 are symmetrically installed on the side wall of the frame 1, a rotating shaft 15 is installed on one side of the conveyor 6, a servo motor 13 is installed on the bottom of the frame 1, a synchronous pulley assembly 14 is installed on the output end of the servo motor 13, and the end of the synchronous pulley assembly 14 away from the servo motor 13 is connected to the rotating shaft 15.

[0028] When using the photovoltaic cell screen printing device, the servo motor 13 is turned on. Under the support of the frame 1, the servo motor 13 drives the synchronous belt pulley assembly 14 to rotate. The synchronous belt pulley assembly 14 drives the rotating shaft 15 to rotate. The rotating shaft 15 drives the conveyor 6 to rotate. The photovoltaic cells are placed on the surface of the conveyor 6 in sequence, so that the conveyor 6 moves multiple sets of photovoltaic cells. When the photoelectric sensor 16 senses the photovoltaic cell, the control panel 8 is turned on to open the cylinder 11 and the suction cup 17, so that the suction cup 17 adsorbs and moves the photovoltaic cell to the surface of the mold 10 for placement. The robot arm 9 is turned on, and the robot arm 9 drives the printing head 12 to move to the surface of the photovoltaic cell for printing. This facilitates the convenient transportation of photovoltaic cells and realizes the convenient transportation of photovoltaic cells by the screen printing device, improving the convenience of the screen printing device in transporting photovoltaic cells.

[0029] A suction cup 17 is installed at the output end of the cylinder 11, a power motor 23 is installed on the side wall of the movable bracket 7, a threaded rod 24 is installed at the output end of the power motor 23, and the threaded rod 24 extends into the interior of the movable bracket 7 and is movably connected thereto.

[0030] The surface of the threaded rod 24 is fitted with a threaded sleeve 25, the threaded rod 24 and the threaded sleeve 25 are threadedly connected, the threaded sleeve 25 is connected to the cylinder 11, a central control shaft 18 is installed at the bottom center of the rotating disk 4, the central control shaft 18 extends to the top of the support frame 3 and is movably connected to it, and a support seat 22 is installed at the top of the support frame 3 inside the central control shaft 18.

[0031] The support base 22 extends to the outside of the central control shaft 18. The support base 22 is fixedly connected to the support frame 3 and connected to the robot arm 9. A stepper motor 19 is installed on the top of the external support frame 3 of the central control shaft 18.

[0032] A worm gear 20 is installed at the output end of the stepper motor 19, and a worm wheel 21 is fitted on the surface of the central control shaft 18. The worm wheel 21 meshes with the worm gear 20. A slide groove 26 is provided at the bottom end of the external rotating disk 4 of the central control shaft 18. Multiple sets of support slide heads 27 with equal spacing are installed at the top of the external support frame 3 of the stepper motor 19. The support slide heads 27 are slidably connected to the slide groove 26.

[0033] A control panel 8 is installed on the top side of the fixed bracket 2 away from the L-shaped frame 5. The output end of the control panel 8 is electrically connected to the input end of the robot arm 9, cylinder 11, printing head 12, servo motor 13, photoelectric sensor 16, suction cup 17, stepper motor 19, and power motor 23.

[0034] When multiple photovoltaic cells need to be printed sequentially, stepper motor 19 is turned on. Supported by support frame 3, stepper motor 19 drives worm gear 20 to rotate. Under the meshing of worm gear 20 and worm wheel 21, worm gear 20 drives worm wheel 21 to rotate. Under the sliding support of slide groove 26 and support slide head 27, worm wheel 21 drives central control shaft 18, rotating disk 4, and mold 10 to rotate, so that the mold 10 that has been placed moves to one side, and the mold 10 to be placed moves to the placement area for placement. Power motor 23 is turned on. Supported by moving bracket 7, power motor 23 drives... The threaded rod 24 rotates, and under the threaded connection between the threaded rod 24 and the threaded sleeve 25, the threaded rod 24 drives the threaded sleeve 25 to move. The threaded sleeve 25 drives the cylinder 11 and the suction cup 17 to move, so that the suction cup 17 moves the adsorbed photovoltaic cell to the surface of the mold 10 for placement. The robot arm 9 drives the printing head 12 to print the photovoltaic cells sequentially, which facilitates the sequential printing of multiple sets of photovoltaic cells. This realizes that the screen printing device can print multiple sets of photovoltaic cells sequentially, shortens the printing time between each set of photovoltaic cells, and improves the printing efficiency of the screen printing device.

[0035] Working principle: When using the photovoltaic cell screen printing device, the servo motor 13 drives the synchronous belt pulley assembly 14 to rotate, which in turn drives the rotating shaft 15 to rotate. The rotating shaft 15 then drives the conveyor 6 to rotate, placing the photovoltaic cells sequentially on the surface of the conveyor 6. This causes the conveyor 6 to move multiple sets of photovoltaic cells. When the photoelectric sensor 16 detects a photovoltaic cell, the control panel 8 opens the cylinder 11 and suction cup 17, allowing the suction cup 17 to pick up and move the photovoltaic cell to the surface of the mold 10 for placement. The robotic arm 9 then moves the printing head 12 to the surface of the photovoltaic cell for printing, facilitating convenient transport of the photovoltaic cells. The stepper motor 19 drives the worm gear 20 to rotate. The worm gear 20 drives the worm wheel 21 to rotate. Under the sliding support of the slide groove 26 and the support slide head 27, the worm wheel 21 drives the central control shaft 18, the rotating disk 4, and the mold 10 to rotate, so that the mold 10 that has been placed moves to one side, and the mold 10 to be placed moves to the placement area for placement. The power motor 23 drives the threaded rod 24 to rotate, and the threaded rod 24 drives the threaded sleeve 25 to move. The threaded sleeve 25 drives the cylinder 11 and the suction cup 17 to move, so that the suction cup 17 moves the adsorbed photovoltaic cell to the surface of the mold 10 for placement. The robot arm 9 drives the printing head 12 to print the photovoltaic cells in sequence, which facilitates the sequential printing of multiple sets of photovoltaic cells to complete the use of the screen printing device.

Claims

1. A photovoltaic cell screen printing apparatus, characterized by: The utility model provides a kind of printing machine, including rack (1) and fixed support (2), the outside of the rack (1) is provided with fixed support (2), the outside of the fixed support (2) is provided with support frame (3), the outside of the support frame (3) is provided with rotary disc (4), the top end side wall of the fixed support (2) is installed with L type frame (5), the top end of the rack (1) is installed with conveyor (6), the bottom of the L type frame (5) is installed with moving support (7), the outside of the moving support (7) is provided with pneumatic cylinder (11), the outside of the rotary disc (4) is provided with mechanical hand (9), the top end of the mechanical hand (9) is installed with printing head (12), the top end of the rotary disc (4) is movably installed with multiple groups of mould (10) of equal interval, the side wall of the rack (1) is symmetrically installed with photoelectric sensor (16), one side of the conveyor (6) is installed with rotary shaft (15), the bottom of the rack (1) is installed with servo motor (13), the output of the servo motor (13) is installed with synchronous pulley assembly (14), the end of the synchronous pulley assembly (14) away from servo motor (13) is connected with rotary shaft (15).

2. A screen printing apparatus for photovoltaic cells as claimed in claim 1 wherein: The output of the pneumatic cylinder (11) is installed with suction cup (17), the side wall of the moving support (7) is installed with power motor (23).

3. A screen printing apparatus for photovoltaic cells as claimed in claim 2, wherein: The output of the power motor (23) is installed with threaded rod (24), the threaded rod (24) extends to the inside of moving support (7) and is movably connected therewith.

4. A screen printing apparatus for photovoltaic cells as claimed in claim 3, wherein: The surface of the threaded rod (24) is provided with threaded sleeve (25), the threaded rod (24) is threadedly connected with the threaded sleeve (25), the threaded sleeve (25) is connected with the pneumatic cylinder (11), and the bottom center of the rotary disc (4) is installed with central control shaft (18).

5. A screen printing apparatus for photovoltaic cells as claimed in claim 4, wherein: The central control shaft (18) extends to the top of the support frame (3) and is movably connected therewith, and the top of the support frame (3) inside the central control shaft (18) is installed with support seat (22).

6. A screen printing apparatus for photovoltaic cells as claimed in claim 5 wherein: The support seat (22) extends to the outside of the central control shaft (18), the support seat (22) is fixedly connected with the support frame (3), the support seat (22) is connected with the mechanical hand (9), and the top of the support frame (3) outside the central control shaft (18) is installed with stepping motor (19).

7. A screen printing apparatus for photovoltaic cells as claimed in claim 6, wherein: The output of the stepping motor (19) is installed with worm (20), the surface of the central control shaft (18) is provided with worm wheel (21), the worm wheel (21) is engaged with the worm (20), the bottom of the rotary disc (4) outside the central control shaft (18) is provided with sliding groove (26), the top of the support frame (3) outside the stepping motor (19) is installed with multiple groups of support sliding head (27) of equal interval, and the support sliding head (27) is slidably connected with the sliding groove (26).

8. A screen printing apparatus for photovoltaic cells as defined in claim 1, wherein: The fixed support (2) top end is away from the side of L-shaped frame (5) is equipped with control panel (8), the output of control panel (8) and mechanical arm (9), air cylinder (11), printing head (12), servo motor (13), photoelectric sensor (16), suction cup (17), stepping motor (19), power motor (23) input electric connection.

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