Screen printing equipment capable of weighing slurry in screen printing plate

Abstract

The utility model discloses silk-screen printing equipment capable of weighing slurry in a screen printing plate, which comprises a base, a platform fixedly connected to the top of the base, a first fixing frame fixedly connected to one side of the top of the base, a screen frame bracket movably connected to one side of the first fixing frame, a groove arranged on the inner side of the bracket, and a silk screen movably connected in the groove. The two sides of the top of the bracket are movably connected with a first double-end lead screw and a second double-end lead screw correspondingly, the first double-end lead screw and the second double-end lead screw are rotated under the action of the transmission belt by pulling the first handle, loosening the locking block and rotating the rotary knob, the multiple pressing blocks slide towards the two sides, limiting of the pressing blocks to the silk screen is relieved, operation is easy, replacement is convenient, and the practicability is high. The problems that due to the fact that a silk screen is an easy-to-damage product, is easy to damage after being used for a long time and needs to be replaced in time, the fixing structure of the silk screen of most existing silk-screen printing equipment capable of weighing the sizing agent in the screen printing plate is complex, the silk screen is inconvenient to disassemble, and the machining efficiency is affected to a certain degree are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of screen printing processes, in particular to a screen printing device for weighing the paste in a screen plate. Background Art

[0002] Screen printing technology is mainly applied to the manufacturing of photovoltaic cells in the photovoltaic industry. Photovoltaic cells form a PN junction on a semiconductor silicon wafer, and grid lines are printed on both sides of the semiconductor silicon wafer by screen printing to collect current as electrodes. The screen printing device for photovoltaic cells is used for transporting the photovoltaic cells during the printing process. The transportation efficiency and accuracy of the device determine the printing efficiency and accuracy of the photovoltaic cells.

[0003] Since the screen is a consumable item, it is prone to breakage during long-term use and needs to be replaced in a timely manner. Most of the existing screen printing devices for weighing the paste in a screen plate have a relatively complex fixing structure for the screen, and it is inconvenient to disassemble the screen, which to a certain extent affects the processing efficiency. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] In view of the above and / or problems existing in the existing screen printing devices for weighing the paste in a screen plate, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide a screen printing device for weighing the paste in a screen plate. When the screen needs to be replaced during use, pull the first handle, loosen the locking block, rotate the knob, and under the action of the transmission belt, the first double-headed lead screw and the second double-headed lead screw rotate, causing multiple pressing blocks to slide to both sides, releasing the limit of the pressing blocks on the screen. The operation is simple and the replacement is more convenient, solving the problem that since the screen is a consumable item, it is prone to breakage during long-term use and needs to be replaced in a timely manner. Most of the existing screen printing devices for weighing the paste in a screen plate have a relatively complex fixing structure for the screen, and it is inconvenient to disassemble the screen, which to a certain extent affects the processing efficiency.

[0007] To solve the above technical problems, according to one aspect of the present utility model, the following technical solutions are provided:

[0008] A screen printing device for weighing the paste in a screen plate, comprising:

[0009] Base, a platform is fixedly connected to the top of the base, a first fixing frame is fixedly connected to one side of the top of the base, a screen frame bracket is movably connected to one side of the first fixing frame, a groove is arranged inside the bracket, a wire mesh is movably connected inside the groove, two ends of the top of the bracket are respectively movably connected with a first double-headed lead screw and a second double-headed lead screw, one end of the first double-headed lead screw penetrates through one side of the bracket and is fixedly connected with a knob, one end of the first double-headed lead screw penetrates through one side of the bracket and is fixedly connected with a first belt pulley, one end of the second double-headed lead screw penetrates through one side of the bracket and is fixedly connected with a second belt pulley, a transmission belt is arranged between the first belt pulley and the second belt pulley, a plurality of first limiting grooves are arranged at the top of the bracket, a pressing block is movably connected in each of the plurality of first limiting grooves, a first limiting block is arranged at the bottom of the pressing block, a first boss is arranged on one side of the pressing block, a first internal thread through hole is transversely arranged on the first boss, and the plurality of pressing blocks are respectively meshed with a first external thread of the first double-headed lead screw and a second external thread of the second double-headed lead screw, and a printing mechanism is arranged on one side of the first fixing frame.

[0010] As a preferred solution of the screen printing device capable of weighing the paste in the screen plate of the present invention, one end of the first double-headed lead screw is provided with a third external thread, a locking block is movably connected to the third external thread, a first handle is fixedly connected to the outside of the locking block, a plurality of discharge holes are arranged in the middle of the wire mesh, second handles are fixedly connected to both sides of the top of the wire mesh, a second limiting groove is arranged in the middle of the first fixing frame, a second limiting block is arranged on one side of the bracket, and the second limiting block is located inside the second limiting groove.

[0011] As a preferred solution of the screen printing device capable of weighing the paste in the screen plate of the present invention, the printing mechanism includes a second fixing frame, a third limiting block is arranged at one end of the second fixing frame, the third limiting block is located in the second limiting groove, a second internal thread through hole is arranged at one end of the second fixing frame penetrating through the first fixing frame, a first driving motor is fixedly connected to the top of the first fixing frame, a lead screw is fixedly connected to the power output end of the first driving motor penetrating through the top of the first fixing frame, one end of the lead screw is movably connected to the top of the platform, and a fourth external thread of the lead screw is meshed with the second internal thread through hole.

[0012] As a preferred solution of the screen printing device capable of weighing the paste in the screen plate of the present invention, a through groove is arranged at one end of the second fixing frame, a third fixing frame is movably connected inside the through groove, a reciprocating lead screw is horizontally movably connected to the top of the second fixing frame, one end of the reciprocating lead screw is movably connected to one side of the second fixing frame, a second driving motor is fixedly connected to one side of the second fixing frame, and the power output end of the second driving motor penetrates through one side of the second fixing frame and is fixedly connected to one end of the reciprocating lead screw.

[0013] As a preferred embodiment of the screen printing device capable of weighing the paste in the screen plate of the present utility model, a third internal threaded through hole is provided at the top of the third fixing frame, and the third internal threaded through hole is engaged with the fifth external thread of the reciprocating lead screw. Third limiting grooves are provided on both sides of the third fixing frame, and a squeegee is fixedly connected to the bottom of the third fixing frame.

[0014] As a preferred embodiment of the screen printing device capable of weighing the paste in the screen plate of the present utility model, a pulp tank is provided inside the base. An outlet is provided on one side of the pulp tank, a feed inlet is provided on one side of the pulp tank, a pulp pump is fixedly connected to one side of the pulp tank, an input end of the pulp pump is fixedly connected to a first pulp pipe, an input end of the first pulp pipe is fixedly connected to the outlet, an output end of the pulp pump is fixedly connected to a second pulp pipe, and a plurality of output ends are provided at one end of the second pulp pipe passing through the platform.

[0015] As a preferred embodiment of the screen printing device capable of weighing the paste in the screen plate of the present utility model, a first conveying roller and a second conveying roller are respectively movably connected to both ends of the platform. A third driving motor is fixedly connected to one side of the platform, and a power output end of the third driving motor passes through one side of the platform and is fixedly connected to one side of the first conveying roller. A conveyor belt is provided between the first conveying roller and the second conveying roller.

[0016] As a preferred embodiment of the screen printing device capable of weighing the paste in the screen plate of the present utility model, a plurality of connecting rods are fixedly connected to the bottom of the bracket, a plurality of pressure sensors are fixedly connected to the top of the platform, the top of the pressure sensor is fixedly connected to the bottom of the connecting rod, and an electronic display screen is fixedly connected to one side of the base, and the electronic display screen is electrically connected to the pressure sensor.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: When the screen needs to be replaced, pull the first handle, loosen the locking block, rotate the knob, and under the action of the transmission belt, the first double-headed lead screw and the second double-headed lead screw rotate, so that a plurality of pressing blocks slide to both sides, releasing the limit of the pressing blocks on the screen. The operation is simple and the replacement is more convenient. It solves the problem that since the screen is a consumable item and is prone to breakage during long-term use and needs to be replaced in time, most of the existing screen printing devices capable of weighing the paste in the screen plate have a relatively complex fixing structure for the screen and are inconvenient to disassemble the screen, which affects the processing efficiency to a certain extent. Description of the Drawings

[0018] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the present utility model will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them:

[0019] Figure 1 It is a schematic diagram of the overall structure of a screen printing device for weighing the paste in the screen plate of the present utility model.

[0020] Figure 2 It is a cross-sectional view of the base structure of a screen printing device for weighing the paste in the screen plate of the present utility model.

[0021] Figure 3 It is a schematic diagram of the bracket structure of a screen printing device for weighing the paste in the screen plate of the present utility model.

[0022] Figure 4 It is a schematic diagram of the pressing block structure of a screen printing device for weighing the paste in the screen plate of the present utility model.

[0023] Figure 5 It is a schematic diagram of the screen structure of a screen printing device for weighing the paste in the screen plate of the present utility model.

[0024] Figure 6 It is a schematic diagram of the structure of the second fixing frame of a screen printing device for weighing the paste in the screen plate of the present utility model.

[0025] Figure 7 It is a schematic diagram of the structure of the third fixing frame of a screen printing device for weighing the paste in the screen plate of the present utility model. Detailed Embodiments

[0026] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be made in conjunction with the accompanying drawings.

[0027] Please refer to Figures 1 - 5, the utility model provides a screen printing device capable of weighing the paste in the screen plate, which includes a base 1. A platform 2 is fixedly connected to the top of the base 1. A first fixing frame 3 is fixedly connected to one side of the top of the base 1. A screen frame bracket 4 is movably connected to one side of the first fixing frame 3. A groove 23 is arranged inside the bracket 4. A screen 5 is movably connected inside the groove 23. First double-headed lead screws 24 and second double-headed lead screws 26 are respectively movably connected to both sides of the top of the bracket 4. One end of the first double-headed lead screw 24 penetrates through one side of the bracket 4 and is fixedly connected with a knob 29. One end of the first double-headed lead screw 24 penetrates through one side of the bracket 4 and is fixedly connected with a first belt pulley 25. One end of the second double-headed lead screw 26 penetrates through one side of the bracket 4 and is fixedly connected with a second belt pulley 27. A transmission belt 28 is arranged between the first belt pulley 25 and the second belt pulley 27. A plurality of first limiting grooves 30 are arranged on the top of the bracket 4. Pressure blocks 7 are movably connected inside the plurality of first limiting grooves 30. A first limiting block 36 is arranged at the bottom of the pressure block 7. A first boss 37 is arranged on one side of the pressure block 7. A first internal threaded through hole 38 is horizontally arranged on the first boss 37. The plurality of pressure blocks 7 are respectively meshed with the first external thread of the first double-headed lead screw 24 and the second external thread of the second double-headed lead screw 26. A printing mechanism is arranged on one side of the first fixing frame 3.

[0028] One end of the first double-headed lead screw 24 is provided with a third external thread 32. A locking block 31 is movably connected to the third external thread 32. A first handle 33 is fixedly connected to the outside of the locking block 31. A plurality of discharge holes 39 are arranged in the middle of the screen 5. Second handles 40 are fixedly connected to both sides of the top of the screen 5. A second limiting groove 20 is arranged in the middle of the first fixing frame 3. A second limiting block 34 is arranged on one side of the bracket 4. The second limiting block 34 is located inside the second limiting groove 20.

[0029] Specifically, when the screen 5 needs to be replaced, pull the first handle 33, loosen the locking block 31, rotate the knob 29, and under the action of the transmission belt 28, the first double-headed lead screw 24 and the second double-headed lead screw 26 rotate, so that the plurality of pressure blocks 7 all slide to both sides, releasing the limit of the pressure blocks 7 on the screen 5. The operation is simple and the replacement is more convenient, solving the problem that since the screen is a vulnerable part and is prone to breakage during long-term use and needs to be replaced in time, most of the existing screen printing devices capable of weighing the paste in the screen plate have a relatively complex fixing structure for the screen and are inconvenient to disassemble the screen, which to a certain extent affects the processing efficiency.

[0030] Please refer to Figures 1 - 2 and Figures 6 - 7, the printing mechanism includes a second fixing frame 6. One end of the second fixing frame 6 is provided with a third limiting block 44 which is located in the second limiting groove 20. One end of the second fixing frame 6 penetrates through the first fixing frame 3 and is provided with a second internal thread through hole 45. The top of the first fixing frame 3 is fixedly connected with a first driving motor 21. The power output end of the first driving motor 21 penetrates through the top of the first fixing frame 3 and is fixedly connected with a lead screw 22. One end of the lead screw 22 is movably connected to the top of the platform 2. The fourth external thread of the lead screw 22 meshes with the second internal thread through hole 45.

[0031] One end of the second fixing frame 6 is provided with a through groove 43. A third fixing frame 46 is movably connected in the through groove 43. The top of the second fixing frame 6 is horizontally movably connected with a reciprocating lead screw 42. One end of the reciprocating lead screw 42 is movably connected to one side of the second fixing frame 6. One side of the second fixing frame 6 is fixedly connected with a second driving motor 41. The power output end of the second driving motor 41 penetrates through one side of the second fixing frame 6 and is fixedly connected with one end of the reciprocating lead screw 42.

[0032] The top of the third fixing frame 46 is provided with a third internal thread through hole 47 which meshes with the fifth external thread of the reciprocating lead screw 42. Third limiting grooves 48 are provided on both sides of the third fixing frame 46. A squeegee 49 is fixedly connected to the bottom of the third fixing frame 46.

[0033] A pulp tank 16 is arranged inside the base 1. A discharge port 18 is arranged on one side of the pulp tank 16. A feed port 17 is arranged on one side of the pulp tank 16. A pulp pump 8 is fixedly connected to one side of the pulp tank 16. The input end of the pulp pump 8 is fixedly connected with a first pulp pipe 9. The input end of the first pulp pipe 9 is fixedly connected with the discharge port 18. The output end of the pulp pump 8 is fixedly connected with a second pulp pipe 10. One end of the second pulp pipe 10 penetrates through the platform 2 and is provided with a plurality of output ends.

[0034] A first conveying roller 12 and a second conveying roller 13 are respectively movably connected to both ends of the platform 2. A third driving motor 11 is fixedly connected to one side of the platform 2. The power output end of the third driving motor 11 penetrates through one side of the platform 2 and is fixedly connected with one side of the first conveying roller 12. A conveyor belt 14 is arranged between the first conveying roller 12 and the second conveying roller 13.

[0035] Specifically, place the workpiece on the conveyor belt 14, convey it to the lower part of the wire mesh 5 under the action of the third driving motor 11, convey the slurry to the top of the wire mesh 5 under the action of the pulp pump 8, lower the second fixing frame 6 under the action of the first driving motor 21, make the bottom of the squeegee 49 contact with the workpiece, and drive the squeegee 49 to move horizontally back and forth for printing under the action of the reciprocating lead screw 42.

[0036] Please refer to Figures 1 - 3, a plurality of connecting rods 35 are fixedly connected to the bottom of the bracket 4, a plurality of pressure sensors 19 are fixedly connected to the top of the platform 2, the top of the pressure sensor 19 is fixedly connected to the bottom of the connecting rod 35, and an electronic display screen 15 is fixedly connected to one side of the base 1. The electronic display screen 15 is electrically connected to the pressure sensor 19.

[0037] Specifically, the actual weight of the paste in the screen printing plate is calculated by the weight added each time, and the paste is controlled within a certain weight value, so as to reduce the problems of printing defects such as broken grids caused by the drying of the paste after excessive accumulation of the paste.

[0038] Although the present invention has been described above with reference to the embodiments, various improvements can be made to it and components thereof can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention can be combined with each other in any way, and the exhaustive description of these combinations is omitted in this specification only for the sake of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A screen printing device capable of weighing the paste in the screen plate, characterized in that, It includes a base (1), a platform (2) is fixedly connected to the top of the base (1), a first fixing frame (3) is fixedly connected to one side of the top of the base (1), a screen frame bracket (4) is movably connected to one side of the first fixing frame (3), a groove (23) is arranged inside the bracket (4), a wire mesh (5) is movably connected inside the groove (23), a first double-headed lead screw (24) and a second double-headed lead screw (26) are respectively movably connected to both sides of the top of the bracket (4), one end of the first double-headed lead screw (24) penetrates through one side of the bracket (4) and is fixedly connected to a knob (29), one end of the first double-headed lead screw (24) penetrates through one side of the bracket (4) and is fixedly connected to a first pulley (25), one end of the second double-headed lead screw (26) penetrates through one side of the bracket (4) and is fixedly connected to a second pulley (27), a transmission belt (28) is arranged between the first pulley (25) and the second pulley (27), a plurality of first limiting grooves (30) are arranged on the top of the bracket (4), a pressing block (7) is movably connected inside each of the plurality of first limiting grooves (30), a first limiting block (36) is arranged at the bottom of the pressing block (7), a first boss (37) is arranged on one side of the pressing block (7), a first internal thread through hole (38) is horizontally arranged on the first boss (37), and each of the plurality of pressing blocks (7) is engaged with a first external thread of the first double-headed lead screw (24) and a second external thread of the second double-headed lead screw (26). A printing mechanism is arranged on one side of the first fixing frame (3).

2. The screen printing equipment capable of weighing the paste in the screen plate according to claim 1, characterized in that, A third external thread (32) is arranged at one end of the first double-headed lead screw (24), a locking block (31) is movably connected to the third external thread (32), a first handle (33) is fixedly connected to the outside of the locking block (31), a plurality of discharge holes (39) are arranged in the middle of the wire mesh (5), second handles (40) are fixedly connected to both sides of the top of the wire mesh (5), a second limiting groove (20) is arranged in the middle of the first fixing frame (3), a second limiting block (34) is arranged on one side of the bracket (4), and the second limiting block (34) is located inside the second limiting groove (20).

3. The screen printing equipment capable of weighing the paste in the screen plate according to claim 2, characterized in that, The printing mechanism includes a second fixing frame (6), a third limiting block (44) is arranged at one end of the second fixing frame (6), the third limiting block (44) is located inside the second limiting groove (20), a second internal thread through hole (45) is arranged at one end of the second fixing frame (6) penetrating through the first fixing frame (3), a first driving motor (21) is fixedly connected to the top of the first fixing frame (3), a lead screw (22) is fixedly connected to the power output end of the first driving motor (21) penetrating through the top of the first fixing frame (3), one end of the lead screw (22) is movably connected to the top of the platform (2), and a fourth external thread of the lead screw (22) is engaged with the second internal thread through hole (45).

4. A screen printing device capable of weighing the paste in the screen plate according to claim 3, characterized in that, One end of the second fixing frame (6) is provided with a through groove (43), a third fixing frame (46) is movably connected in the through groove (43), a reciprocating lead screw (42) is horizontally movably connected to the top of the second fixing frame (6), one end of the reciprocating lead screw (42) is movably connected to one side of the second fixing frame (6), a second driving motor (41) is fixedly connected to one side of the second fixing frame (6), and the power output end of the second driving motor (41) penetrates through one side of the second fixing frame (6) and is fixedly connected to one end of the reciprocating lead screw (42).

5. A screen printing device capable of weighing the paste in the screen plate according to claim 4, characterized in that, A third internal thread through hole (47) is provided at the top of the third fixing frame (46), the third internal thread through hole (47) is engaged with the fifth external thread of the reciprocating lead screw (42), third limiting grooves (48) are provided on both sides of the third fixing frame (46), and a scraping knife (49) is fixedly connected to the bottom of the third fixing frame (46).

6. The screen printing device capable of weighing the paste in the screen plate according to claim 5, wherein, A pulp tank (16) is arranged inside the base (1), a discharge port (18) is arranged on one side of the pulp tank (16), a feed port (17) is arranged on one side of the pulp tank (16), a pulp pump (8) is fixedly connected to one side of the pulp tank (16), an input end of the pulp pump (8) is fixedly connected to a first pulp pipe (9), an input end of the first pulp pipe (9) is fixedly connected to the discharge port (18), an output end of the pulp pump (8) is fixedly connected to a second pulp pipe (10), and one end of the second pulp pipe (10) penetrates through the platform (2) and is provided with a plurality of output ends.

7. A screen printing device capable of weighing the paste in the screen plate according to claim 6, characterized in that, A first conveying roller (12) and a second conveying roller (13) are respectively movably connected to both ends of the platform (2), a third driving motor (11) is fixedly connected to one side of the platform (2), the power output end of the third driving motor (11) penetrates through one side of the platform (2) and is fixedly connected to one side of the first conveying roller (12), and a conveyor belt (14) is arranged between the first conveying roller (12) and the second conveying roller (13).

8. A screen printing apparatus capable of weighing the paste in the screen plate according to claim 7, characterized in that, A plurality of connecting rods (35) are fixedly connected to the bottom of the bracket (4), a plurality of pressure sensors (19) are fixedly connected to the top of the platform (2), the tops of the pressure sensors (19) are fixedly connected to the bottoms of the connecting rods (35), an electronic display screen (15) is fixedly connected to one side of the base (1), and the electronic display screen (15) is electrically connected to the pressure sensors (19).

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