Vertically adjustable screen printing machine and method of using the same

Abstract

The application discloses a vertical silk screen printing machine convenient to adjust and a use method thereof, and belongs to the technical field of semiconductor circuit board processing equipment, and comprises a conveying belt, and a plurality of fixing assemblies are linearly distributed on the conveying belt. In the application, the first rotating shaft, the driving pulley, the driven pulley and the lead screw are driven to rotate by a motor, the threaded sleeve drives the silk screen net, the third rack, the first rack and the sliding plate to move downwards, the second rack, the rectangular sliding plate and the clamping block are further moved towards the semiconductor circuit board, the use position of the semiconductor circuit board is secondarily fixed, movement of the semiconductor circuit board in the silk screen printing process is prevented, and the silk screen printing work of the equipment and the use precision are prevented from being affected, the manual operation hand rocker is manually operated to drive the second rotating shaft and the second gear to rotate, the use position of the second rack and the clamping block is adjusted, the semiconductor circuit boards of different sizes are conveniently secondarily fixed and corrected, and the flexibility of the equipment in the use process is secondarily improved.

Description

Technical Field

[0001] This invention belongs to the technical field of circuit board processing equipment, and particularly relates to an easily adjustable vertical screen printing machine and its usage method. Background Technology

[0002] With the development of technology, our lives have changed dramatically, and electronic products are increasingly widely used. The production of these electronic products all require the use of semiconductor circuit boards for control and operation. Semiconductor circuit boards are made using semiconductor manufacturing processes to fabricate many transistors, resistors, capacitors, and other components on a small single-crystal silicon wafer. These components are then combined into a complete electronic circuit using multilayer wiring or tunnel wiring methods. During the processing and manufacturing of semiconductor circuit boards, a screen printing machine is used to print the circuit diagram onto the semiconductor circuit board, facilitating the processing and use of the semiconductor circuit board.

[0003] Existing vertical screen printing machines are inconvenient to automatically fix and correct the position of semiconductor circuit boards during printing, which makes it impossible to accurately screen print ink onto the semiconductor circuit boards at the predetermined positions. This reduces the screen printing accuracy of the machine and, in severe cases, requires rework and repair of the semiconductor circuit boards, thus affecting the overall processing efficiency of the semiconductor circuit boards. Therefore, certain improvements are needed. Summary of the Invention

[0004] The purpose of this invention is to address the problem that existing vertical screen printing machines are inconvenient to automatically fix and correct the position of semiconductor circuit boards during printing, resulting in the inability to accurately screen print ink onto the semiconductor circuit boards at predetermined positions, thereby reducing the screen printing accuracy of the machine and, in severe cases, requiring rework and repair of the semiconductor circuit boards, thus affecting the overall processing efficiency of the semiconductor circuit boards. Therefore, this invention proposes an easily adjustable vertical screen printing machine and its usage method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An easily adjustable vertical screen printing machine and its method of use include a conveyor belt with multiple fixed components linearly distributed on it. A protective frame is provided above the fixed components and is located on the outside of the conveyor belt. A top seat is fixedly connected to the top of the protective frame. A lifting component is provided inside the top seat and the protective frame. Auxiliary drying components are provided on both sides of the top of the lifting component. A screen printing plate is provided inside the lifting component, and an adjustment component is provided on the top of the screen printing plate.

[0007] The fixing assembly includes a mounting base with a placement groove on its inner top side. A first inner cavity is connected to the four sides of the placement groove. A spring is fixedly connected to the bottom side of the first inner cavity, and a sliding plate is fixedly connected to the top of the spring. The sliding plate is slidably connected inside the first inner cavity. A first rack is fixedly connected to the side of the sliding plate away from the spring. A first gear is meshed with the side of the first rack away from the placement groove. A connecting shaft is fixedly connected inside the first gear, and both ends of the connecting shaft are rotatably connected to the inside of the mounting base via bearings. A second rack is meshed with one side of the first gear, and a rectangular sliding plate is fixedly connected to one side of the second rack. The rectangular sliding plate is slidably connected inside the first inner cavity. A clamping block is fixedly connected to the side of the second rack away from the rectangular sliding plate after extending into the placement groove.

[0008] As a further description of the above technical solution:

[0009] The lifting assembly includes a motor, the bottom of which is fixedly connected to the top of the top seat. The output shaft of the motor extends into a second inner cavity opened inside the top seat and is fixedly connected to a first rotating shaft. A drive pulley is fixedly connected to the first rotating shaft. Both sides of the drive pulley are connected to driven pulleys via transmission belts. The diameter of the drive pulley is larger than the diameter of the driven pulley.

[0010] As a further description of the above technical solution:

[0011] The driven pulley is fixedly connected to a lead screw. The bottom of the lead screw extends into the third inner cavity opened inside the protective frame and is threadedly connected to a threaded sleeve. One side of the threaded sleeve is slidably connected to the inside of the protective frame through two sliders and a slide rail. A plate is fixedly connected between the two threaded sleeves. The plate is slidably connected in the first through hole opened in the protective frame. The first through hole is connected to the third inner cavity.

[0012] As a further description of the above technical solution:

[0013] The auxiliary drying component includes an air bladder, which is disposed in the first through hole. The two sides of the air bladder are fixedly connected to the inner sidewalls of the flat plate and the protective frame, respectively. One side of the air bladder is connected to an air inlet pipe, and the other end of the air inlet pipe is connected to a heating box. One side of the heating box is provided with an air inlet. The bottom of the heating box is fixedly connected to the top of the top seat. A heater is provided inside the heating box.

[0014] As a further description of the above technical solution:

[0015] The other side of the airbag is connected to an air outlet pipe. Both the air outlet pipe and the air inlet pipe are equipped with one-way valves. The other end of the air outlet pipe is equipped with a fixing block. The top of the fixing block is fixedly connected to the bottom of the flat plate, and the fixing block is located on the side away from the screen. The fixing block has a fourth inner cavity, which is connected to the air outlet pipe. Multiple nozzles are linearly distributed at the bottom of the fourth inner cavity.

[0016] As a further description of the above technical solution:

[0017] Both sides of the screen are fixedly connected to sliding blocks, which are slidably connected in the limiting grooves opened in the plate. Multiple screws are provided inside the sliding blocks and the limiting grooves. The screen is slidably connected in the second through hole opened in the plate. Multiple spherical rods are fixedly connected to one side of the screen opposite to the plate. The other side of the spherical rods is provided with a slot. The slot is located inside the plate. An annular elastic element is provided on one side of the slot. The annular elastic element is sleeved on the outer periphery of the spherical rod.

[0018] As a further description of the above technical solution:

[0019] The adjustment component includes a mounting frame, the bottom of which is fixedly connected to the top of the screen printing plate. The mounting frame has a fifth inner cavity, and a second rotating shaft is rotatably connected inside the fifth inner cavity. One end of the second rotating shaft extends to the outside of the mounting frame and is equipped with a hand crank.

[0020] As a further description of the above technical solution:

[0021] A second gear is fixedly connected to the second rotating shaft, and a third rack is meshed with one side of the second gear. The third rack is slidably connected in the third through hole opened in the mounting frame and the screen.

[0022] As a further description of the above technical solution:

[0023] A U-shaped plate is fixedly connected to the top side of the flat plate by screws. A straight module is provided on one side of the U-shaped plate. A connecting block is provided on the side of the straight module away from the U-shaped plate. Two cylinders are fixedly connected to the side of the connecting block away from the straight module. A scraper is provided below the cylinders. Guide rods are fixedly connected to both sides of the top of the scraper. The guide rods are slidably connected in a fourth through hole opened inside the connecting block. The scraper is located directly above the screen. An infrared sensor is provided on the side directly below the screen. The infrared sensor is fixedly connected to the conveyor belt through a support base. An air intake is connected to the top side of the top base.

[0024] A method for easily adjusting a vertical screen printing machine includes the following steps:

[0025] S1. Place the semiconductor circuit board into the placement slot and transport it by conveyor belt. Stop the conveyor belt when the mounting base moves to the position of the infrared sensor.

[0026] S2. The motor drives the first rotating shaft, the driving pulley, the driven pulley and the lead screw to rotate, so that the threaded sleeve drives the flat plate and the screen to move vertically downward, and moves the screen to the top of the semiconductor circuit board.

[0027] S3. The cylinder drives the squeegee to move downward, and the linear module drives the connecting block, cylinder and squeegee to move horizontally to perform screen printing on the semiconductor circuit board.

[0028] S4. When the screen moves vertically downward, it will drive the third rack to move downward, causing the first rack to drive the first gear to rotate, which in turn causes the second rack to drive the rectangular slide and clamping block to move towards the semiconductor circuit board, thereby assisting in fixing and correcting the semiconductor circuit board in its position.

[0029] S5. Manually operate the hand crank to drive the second shaft and the second gear to rotate, adjust the height of the third rack, and then adjust the position of the second rack and the clamping block to facilitate auxiliary fixing and correction of semiconductor circuit boards of different sizes.

[0030] S6. After the semiconductor circuit board screen printing is completed, the screen-printed semiconductor circuit board is conveyed by the conveyor belt. At the same time, the motor reverses to drive the threaded sleeve and the plate upward. At this time, the plate will spray the hot gas stored inside the airbag through the air outlet, the fourth inner cavity and the nozzle to dry the screen-printed semiconductor circuit board.

[0031] S7. Manually operate the screw to move it upwards, releasing the fixed state between the plate and the sliding block. At this time, manually operate the screen to move the ball rod away from the slot, so that the screen can be disassembled and replaced.

[0032] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0033] 1. In this invention, the motor drives the first rotating shaft, the driving pulley, the driven pulley, and the lead screw to rotate, causing the threaded sleeve to move the flat plate, the screen, the third rack, the first rack, and the sliding plate downwards. This, in turn, causes the first gear to move the second rack, the rectangular slide plate, and the clamping block towards the semiconductor circuit board, thus assisting in fixing the semiconductor circuit board in its position and preventing it from moving during the screen printing process. This prevents any impact on the screen printing operation and accuracy of the equipment, and keeps the semiconductor circuit board in the center of the mounting base, further ensuring the screen printing accuracy of the semiconductor circuit board.

[0034] 2. In this invention, the hand crank is manually operated to drive the second shaft and the second gear to rotate, thereby adjusting the height of the third rack and adjusting the position of the second rack and the clamping block. This facilitates the auxiliary fixing and correction of semiconductor circuit boards of different sizes, and improves the flexibility of the equipment during use.

[0035] 3. In this invention, after the semiconductor circuit board screen printing is completed, the screen-printed semiconductor circuit board is conveyed by the conveyor belt. At the same time, the motor reverses to drive the threaded sleeve and the plate upward. At this time, the plate will spray the hot gas stored inside the airbag through the air outlet, the fourth inner cavity and the nozzle to dry the screen-printed semiconductor circuit board, which is convenient for subsequent processing of the screen-printed semiconductor circuit board. This effectively improves the overall processing efficiency and performance of the equipment during use. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the internal structure of the protective frame in this invention;

[0038] Figure 3 This is a schematic diagram of the overall three-dimensional structure of the U-shaped plate in this invention;

[0039] Figure 4 In this invention Figure 3 A partial diagram of the split structure;

[0040] Figure 5 This is a schematic diagram of the overall three-dimensional structure of the adjustment component in this invention;

[0041] Figure 6 This is a schematic diagram of the overall three-dimensional structure of the second gear in this invention;

[0042] Figure 7 This is a schematic diagram of the internal cross-sectional structure of the mounting base in this invention.

[0043] Legend:

[0044] 1. Conveyor belt; 2. Fixing assembly; 201. Mounting base; 202. Placement slot; 203. First inner cavity; 204. Spring; 205. Sliding plate; 206. First rack; 207. First gear; 208. Connecting shaft; 209. Second rack; 210. Rectangular sliding plate; 3. Protective frame; 4. Top seat; 5. Lifting assembly; 501. Motor; 502. First rotating shaft; 503. Driving pulley; 504. Driven pulley; 505. Lead screw; 506. Screw 507. Pattern sleeve; 6. Flat plate; 7. Auxiliary drying component; 8. Air bag; 9. Air inlet pipe; 10. Heating box; 11. Air outlet pipe; 2. Fixing block; 3. U-shaped plate; 4. Screen; 5. Adjusting component; 6. Mounting frame; 7. Second gear; 8. Second rotating shaft; 9. Hand crank; 10. Third rack; 11. Sliding block; 12. Ball rod; 13. Slot; 14. Linear module; 15. Connecting block; 16. Cylinder. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Please see Figures 1-7 The present invention provides a technical solution: an easily adjustable vertical screen printing machine and its usage method, comprising a conveyor belt 1, a plurality of fixed components 2 linearly distributed on the conveyor belt 1, a protective frame 3 provided above the fixed components 2, the protective frame 3 being located on the outside of the conveyor belt 1, a top seat 4 fixedly connected to the top of the protective frame 3, a lifting component 5 provided inside the top seat 4 and the protective frame 3, auxiliary drying components 6 provided on both sides of the top of the lifting component 5, a screen printing plate 8 provided inside the lifting component 5, and an adjustment component 9 provided on the top of the screen printing plate 8;

[0047] The fixing component 2 includes a mounting base 201. A placement groove 202 is formed on the top side of the interior of the mounting base 201. A first inner cavity 203 is connected to all four sides of the placement groove 202. A spring 204 is fixedly connected to the bottom side of the interior of the first inner cavity 203. A sliding plate 205 is fixedly connected to the top of the spring 204. The sliding plate 205 is slidably connected inside the first inner cavity 203. A first rack 206 is fixedly connected to the side of the sliding plate 205 away from the spring 204. The side of the first rack 206 away from the placement groove 202 engages with the first rack. A first gear 207 is connected, and a connecting shaft 208 is fixedly connected inside the first gear 207. Both ends of the connecting shaft 208 are rotatably connected to the inside of the mounting base 201 through bearings. A second rack 209 is meshed with one side of the first gear 207. A rectangular slide plate 210 is fixedly connected to one side of the second rack 209. The rectangular slide plate 210 is slidably connected inside the first inner cavity 203. The side of the second rack 209 away from the rectangular slide plate 210 extends into the placement groove 202 and is fixedly connected to a clamping block.

[0048] Detailed Implementation: The semiconductor circuit board is placed inside the placement slot 202 and conveyed by the conveyor belt 1. When the mounting base 201 moves to the position detected by the infrared sensor, the conveyor belt 1 is stopped, causing the lifting assembly 5 to move the screen printing plate 8 vertically downwards, positioning the screen printing plate 8 at the top of the semiconductor circuit board. During the vertical downward movement of the screen printing plate 8, the third rack 905 enters the first inner cavity 203 and compresses the first rack 206. This causes the first rack 206 to move the sliding plate 205 downwards, compressing the spring 204. 6. During the movement, the first gear 207 will rotate. Utilizing the linkage effect between the first gear 207 and the second rack 209, the power is transmitted to the second rack 209, causing the second rack 209 to move the rectangular slide plate 210 and the clamping block toward the semiconductor circuit board. This helps to fix the semiconductor circuit board in its position, preventing it from moving during the screen printing process. This prevents the screen printing work of the equipment from affecting its accuracy and keeps the semiconductor circuit board in the center of the mounting base 201, further ensuring the screen printing accuracy of the semiconductor circuit board.

[0049] The lifting assembly 5 includes a motor 501, the bottom of which is fixedly connected to the top of the top seat 4. The output shaft of the motor 501 extends into the second inner cavity of the top seat 4 and is fixedly connected to a first rotating shaft 502. A drive pulley 503 is fixedly connected to the first rotating shaft 502. Both sides of the drive pulley 503 are connected to driven pulleys 504 via transmission belts. The diameter of the drive pulley 503 is larger than the diameter of the driven pulleys 504. A lead screw 505 is fixedly connected inside the driven pulleys 504. The bottom of the lead screw 505 extends into the third inner cavity of the protective frame 3 and is threadedly connected to a threaded sleeve 506. One side of the threaded sleeve 506 is slidably connected to the inside of the protective frame 3 via two sliders and a slide rail. A flat plate 507 is fixedly connected between the two threaded sleeves 506. The flat plate 507 is slidably connected in the first through hole of the protective frame 3, which communicates with the third inner cavity. The auxiliary drying assembly 6... The device includes an airbag 601, which is disposed within a first through hole. Both sides of the airbag 601 are fixedly connected to the inner walls of the plate 507 and the protective frame 3, respectively. One side of the airbag 601 is connected to an air inlet pipe 602, and the other end of the air inlet pipe 602 is connected to a heating box 603. One side of the heating box 603 is provided with an air inlet, and the bottom of the heating box 603 is fixedly connected to the top of the top seat 4. A heater is provided inside the heating box 603. The other side of the airbag 601 is connected to an air outlet pipe 604. Both the air outlet pipe 604 and the air inlet pipe 602 are provided with one-way valves. The other end of the air outlet pipe 604 is provided with a fixing block 605. The top of the fixing block 605 is fixedly connected to the bottom of the plate 507, and the fixing block 605 is located on the side away from the screen 8. The fixing block 605 has a fourth inner cavity, which is connected to the air outlet pipe 604. Multiple nozzles are linearly distributed at the bottom of the fourth inner cavity.

[0050] Detailed Implementation: The motor 501 is started, driving the first rotating shaft 502 to rotate. Utilizing the linkage effect between the first rotating shaft 502 and the driving pulley 503, power is transmitted to the driving pulley 503. The driving pulley 503 then transmits power to the driven pulley 504 via a transmission belt. Utilizing the linkage effect between the driven pulley 504 and the lead screw 505, power is transmitted to the lead screw 505. Under the constraint of the slider and slide rail, the lead screw 505 drives the threaded sleeve 506 and the plate 507 to move vertically downwards. Utilizing the linkage effect between the plate 507 and the screen printing plate 8, power is transmitted to the screen printing plate 8, placing it at the top of the semiconductor circuit board. The cylinder 15 drives the doctor blade to move downwards, and the linear module 13 drives the connecting block 14 to move horizontally. Utilizing the linkage effect between the connecting block 14, the cylinder 15, and the doctor blade, power is transmitted to the doctor blade. On the ink plate, the squeegee moves left and right to perform screen printing on the semiconductor circuit board. As the flat plate 507 moves downward, it stretches the airbag 601, causing the airbag 601 to extract and store hot gas from the heating chamber 603 through the air inlet pipe 602. After the screen printing on the semiconductor circuit board is completed, the conveyor belt 1 is started, which drives the screen-printed semiconductor circuit board to move. At the same time, the motor 501 reverses, causing the threaded sleeve 506 and the flat plate 507 to move upward. At this time, the flat plate 507 squeezes the airbag 601, and the hot gas stored inside the airbag 601 is transported through the air outlet pipe 604 to the fourth inner cavity opened inside the fixed block 605. Then, it is sprayed out through the nozzle to dry the screen-printed semiconductor circuit board, which facilitates subsequent processing of the screen-printed semiconductor circuit board and effectively improves the overall processing efficiency and performance of the equipment.

[0051] Sliding blocks 10 are fixedly connected to both sides of the screen printing plate 8. The sliding blocks 10 are slidably connected in the limiting grooves opened in the plate 507. Multiple screws are provided inside the sliding blocks 10 and the limiting grooves. The screen printing plate 8 is slidably connected in the second through hole opened in the plate 507. Multiple ball rods 11 are fixedly connected to one side of the screen printing plate 8 opposite to the plate 507. A slot 12 is provided on the other side of the ball rod 11. The slot 12 is located inside the plate 507. An annular elastic element is provided on one side of the slot 12. The annular elastic element is sleeved on the outer periphery of the ball rod 11. The adjusting assembly 9 includes a mounting frame 901. The bottom of the mounting frame 901 is fixedly connected to the top of the screen printing plate 8. A fifth inner cavity is opened inside the mounting frame 901. A second rotating shaft 903 is rotatably connected inside the fifth inner cavity. One end of the second rotating shaft 903 extends to the outside of the mounting frame 901 and is provided with a hand crank 904. A second gear 902 is fixedly connected to shaft 903. A third rack 905 is meshed with one side of the second gear 902. The third rack 905 is slidably connected in the third through hole opened in the mounting frame 901 and the screen 8. A U-shaped plate 7 is fixedly connected to one side of the top of the plate 507 by screws. A linear module 13 is provided on one side of the U-shaped plate 7. A connecting block 14 is provided on the side of the linear module 13 away from the U-shaped plate 7. Two cylinders 15 are fixedly connected to the side of the connecting block 14 away from the linear module 13. A scraper is provided below the cylinders 15. Guide rods are fixedly connected to both sides of the top of the scraper. The guide rods are slidably connected in the fourth through hole opened inside the connecting block 14. The scraper is located directly above the screen 8. An infrared sensor is provided on one side directly below the screen 8. The infrared sensor is fixedly connected to the conveyor belt 1 through a support base. An air intake is connected to one side of the top of the top seat 4.

[0052] Detailed Implementation: The hand crank 904 is manually operated to rotate the second shaft 903. Utilizing the linkage between the second shaft 903 and the second gear 902, power is transmitted to the second gear 902, causing it to move the third rack 905 downwards. Adjusting the height of the third rack 905 adjusts the downward movement distance of the first rack 206, thereby adjusting the positions of the second rack 209 and the clamping block. This facilitates the auxiliary fixing and alignment of semiconductor circuit boards of different sizes, improving the flexibility of the equipment during use. Manually operate the screw to move it upwards, releasing the fixed state between the plate 507 and the sliding block 10. At this time, manually operate the screen 8 to move the ball rod 11 away from the slot 12, so that the screen 8 can be disassembled and replaced. This effectively improves the flexibility of the equipment during use. The installation position of the screen 8 is limited by the ball rod 11 and the slot 12, which effectively ensures the accuracy of the screen 8 during installation. The external exhaust device can extract harmful gases inside the protective frame 3 through the air intake to prevent the equipment from affecting the surrounding environment.

[0053] A method for easily adjusting a vertical screen printing machine includes the following steps:

[0054] S1. Place the semiconductor circuit board into the placement slot 202 and transport it by the conveyor belt 1. When the mounting base 201 moves to the position of the infrared sensor, stop the conveyor belt 1.

[0055] S2. The motor 501 drives the first rotating shaft 502, the driving pulley 503, the driven pulley 504 and the lead screw 505 to rotate, so that the threaded sleeve 506 drives the flat plate 507 and the screen 8 to move vertically downward, and moves the screen 8 to the top of the semiconductor circuit board.

[0056] S3. The cylinder 15 drives the squeegee to move downward, and the linear module 13 drives the connecting block 14, the cylinder 15 and the squeegee to move horizontally, so as to perform screen printing on the semiconductor circuit board.

[0057] S4. When the screen 8 moves vertically downward, it will drive the third rack 905 to move downward, causing the first rack 206 to drive the first gear 207 to rotate, which in turn causes the second rack 209 to drive the rectangular slide plate 210 and the clamping block to move towards the semiconductor circuit board, thereby assisting in fixing and correcting the semiconductor circuit board in its position.

[0058] S5. Manually operate the hand crank 904 to drive the second rotating shaft 903 and the second gear 902 to rotate, adjust the height of the third rack 905, and then adjust the position of the second rack 209 and the clamping block to facilitate auxiliary fixing and correction of semiconductor circuit boards of different sizes.

[0059] S6. After the semiconductor circuit board screen printing is completed, the screen-printed semiconductor circuit board is conveyed by the conveyor belt 1. At the same time, the motor 501 reverses to drive the threaded sleeve 506 and the plate 507 to move upward. At this time, the plate 507 will spray the hot gas stored inside the air bag 601 through the air outlet 604, the fourth inner cavity and the nozzle to dry the screen-printed semiconductor circuit board.

[0060] S7. Manually operate the screw to move it upward, releasing the fixed state between the plate 507 and the sliding block 10. At this time, manually operate the screen 8 to move the ball rod 11 away from the slot 12, so that the screen 8 can be disassembled and replaced.

[0061] Working principle: In use, the semiconductor circuit board is placed inside the placement slot 202 and conveyed by the conveyor belt 1. When the mounting base 201 moves to the position detected by the infrared sensor, the conveyor belt 1 is stopped, and the motor 501 is started. The motor 501 drives the first rotating shaft 502 to rotate. Utilizing the linkage effect between the first rotating shaft 502 and the driving pulley 503, power is transmitted to the driving pulley 503, which then transmits power to the driven pulley 504 via a transmission belt. Utilizing the linkage effect between the driven pulley 504 and the lead screw 505, the driven pulley 504... Force is transmitted to the lead screw 505. Under the constraint of the slider and slide rail, the lead screw 505 drives the threaded sleeve 506 and the plate 507 to move vertically downward. Utilizing the linkage effect between the plate 507 and the screen printing plate 8, power is transmitted to the screen printing plate 8, positioning it at the top of the semiconductor circuit board. The cylinder 15 drives the squeegee to move downward, and the linear module 13 drives the connecting block 14 to move horizontally. Utilizing the linkage effect between the connecting block 14, the cylinder 15, and the squeegee, power is transmitted to the squeegee, causing it to move left and right, thus performing the screen printing work on the semiconductor circuit board. As the screen printing plate 8 moves vertically downwards, the third rack 905 enters the first inner cavity 203 and compresses the first rack 206. This causes the first rack 206 to move the sliding plate 205 downwards, compressing the spring 204. During this movement, the first rack 206 drives the first gear 207 to rotate. Utilizing the linkage between the first gear 207 and the second rack 209, power is transmitted to the second rack 209, causing it to move the rectangular slide plate 210 and the clamping block towards the semiconductor circuit board, thus affecting the semiconductor... The circuit board is used to assist in fixing and correcting its position. Then, the hand crank 904 is manually operated to drive the second rotating shaft 903 to rotate. Utilizing the linkage effect between the second rotating shaft 903 and the second gear 902, power is transmitted to the second gear 902, causing the second gear 902 to drive the third rack 905 to move downward. The height of the third rack 905 is adjusted, which in turn adjusts the downward movement distance of the first rack 206, thereby adjusting the position of the second rack 209 and the clamping block. This facilitates the auxiliary fixing and correction of semiconductor circuit boards of different sizes.

[0062] As the flat plate 507 moves downward, it stretches the airbag 601, causing the airbag 601 to extract and store hot gas from inside the heating chamber 603 through the air inlet pipe 602. After the semiconductor circuit board screen printing is completed, the conveyor belt 1 is started, which drives the screen-printed semiconductor circuit board to move. At the same time, the motor 501 reverses, causing the threaded sleeve 506 and the flat plate 507 to move upward. At this time, the flat plate 507 squeezes the airbag 601, and the hot gas stored inside the airbag 601 is transported through the air outlet pipe 604 to the fourth inner cavity opened inside the fixed block 605. Then, it is sprayed out through the nozzle to dry the screen-printed semiconductor circuit board. It is convenient to use.

[0063] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An easily adjustable vertical screen printing machine, comprising a conveyor belt (1), characterized in that: Multiple fixed components (2) are linearly distributed on the conveyor belt (1). A protective frame (3) is provided above the fixed component (2). The protective frame (3) is located on the outside of the conveyor belt (1). A top seat (4) is fixedly connected to the top of the protective frame (3). A lifting component (5) is provided inside the top seat (4) and the protective frame (3). Auxiliary drying components (6) are provided on both sides of the top of the lifting component (5). A screen (8) is provided inside the lifting component (5). An adjustment component (9) is provided on the top of the screen (8). The fixing component (2) includes a mounting base (201). A placement groove (202) is provided on the top inner side of the mounting base (201). A first inner cavity (203) is connected to all four sides of the placement groove (202). A spring (204) is fixedly connected to the bottom inner side of the first inner cavity (203). A sliding plate (205) is fixedly connected to the top of the spring (204). The sliding plate (205) is slidably connected inside the first inner cavity (203). A first rack (206) is fixedly connected to the side of the sliding plate (205) away from the spring (204). The side of the first rack (206) away from the placement groove (202) is... A first gear (207) is meshed with one side of the first gear (207), and a connecting shaft (208) is fixedly connected inside the first gear (207). Both ends of the connecting shaft (208) are rotatably connected to the inside of the mounting base (201) through bearings. A second rack (209) is meshed with one side of the first gear (207), and a rectangular slide plate (210) is fixedly connected to one side of the second rack (209). The rectangular slide plate (210) is slidably connected inside the first inner cavity (203). The side of the second rack (209) away from the rectangular slide plate (210) extends into the inside of the placement groove (202) and is fixedly connected to a clamping block. The lifting assembly (5) includes a motor (501), the bottom of which is fixedly connected to the top of the top seat (4). The output shaft of the motor (501) extends into the second inner cavity opened inside the top seat (4) and is fixedly connected to a first rotating shaft (502). A drive pulley (503) is fixedly connected to the first rotating shaft (502). Both sides of the drive pulley (503) are connected to driven pulleys (504) via transmission belts. The diameter of the drive pulley (503) is larger than the diameter of the driven pulley (504). The driven pulley (504) is fixedly connected to a lead screw (505). The bottom of the lead screw (505) extends to the third inner cavity opened inside the protective frame (3) and is threadedly connected to a threaded sleeve (506). One side of the threaded sleeve (506) is slidably connected to the inside of the protective frame (3) through two sliders and a slide rail. A plate (507) is fixedly connected between the two threaded sleeves (506). The plate (507) is slidably connected to the first through hole opened in the protective frame (3). The first through hole is connected to the third inner cavity. The auxiliary drying component (6) includes an airbag (601), which is disposed in the first through hole. The two sides of the airbag (601) are fixedly connected to the inner sidewalls of the plate (507) and the protective frame (3), respectively. One side of the airbag (601) is connected to an air inlet pipe (602), and the other end of the air inlet pipe (602) is connected to a heating box (603). One side of the heating box (603) is provided with an air inlet, and the bottom of the heating box (603) is fixedly connected to the top of the top seat (4). The airbag (601) is connected to an air outlet pipe (604) on the other side. A fixing block (605) is provided at the other end of the air outlet pipe (604). The top of the fixing block (605) is fixedly connected to the bottom of the plate (507), and the fixing block (605) is located on the side away from the screen (8). A fourth inner cavity is opened inside the fixing block (605). The fourth inner cavity is connected to the air outlet pipe (604). Multiple nozzles are linearly distributed at the bottom of the fourth inner cavity. The adjustment component (9) includes a mounting frame (901), the bottom of which is fixedly connected to the top of the screen (8). The mounting frame (901) has a fifth inner cavity, and a second rotating shaft (903) is rotatably connected inside the fifth inner cavity. One end of the second rotating shaft (903) extends to the outside of the mounting frame (901) and is equipped with a hand crank (904). A second gear (902) is fixedly connected to the second shaft (903). A third rack (905) is meshed with one side of the second gear (902). The third rack (905) is slidably connected in the third through hole opened in the mounting frame (901) and the screen (8). The third rack (905) will enter the interior of the first inner cavity (203) and squeeze the first rack (206).

2. The easily adjustable vertical screen printing machine according to claim 1, characterized in that: Both sides of the screen (8) are fixedly connected to sliding blocks (10). The sliding blocks (10) are slidably connected in the limiting groove opened in the plate (507). Multiple screws are provided inside the sliding blocks (10) and the limiting groove. The screen (8) is slidably connected in the second through hole opened in the plate (507). Multiple spherical rods (11) are fixedly connected to one side of the screen (8) opposite to the plate (507). A slot (12) is provided on the other side of the spherical rod (11). The slot (12) is located inside the plate (507). An annular elastic element is provided on one side of the inside of the slot (12). The annular elastic element is sleeved on the outer periphery of the spherical rod (11).

3. The easily adjustable vertical screen printing machine according to claim 2, characterized in that: A U-shaped plate (7) is fixedly connected to the top side of the plate (507) by screws. A straight module (13) is provided on one side of the U-shaped plate (7). A connecting block (14) is provided on the side of the straight module (13) away from the U-shaped plate (7). Two cylinders (15) are fixedly connected to the side of the connecting block (14) away from the straight module (13). A scraper is provided below the cylinder (15). Guide rods are fixedly connected to both sides of the top of the scraper. The guide rods are slidably connected in the fourth through hole opened inside the connecting block (14). The scraper is located directly above the screen (8). An infrared sensor is provided on the side directly below the screen (8). The infrared sensor is fixedly connected to the conveyor belt (1) through a support seat.

4. The method of using the easily adjustable vertical screen printing machine according to claim 3, characterized in that, Includes the following steps: S1. Place the semiconductor circuit board inside the placement slot (202) and transport it by the conveyor belt (1). When the mounting base (201) moves to the position of the infrared sensor, stop the conveyor belt (1). S2. The motor (501) drives the first rotating shaft (502), the driving pulley (503), the driven pulley (504) and the lead screw (505) to rotate, so that the threaded sleeve (506) drives the plate (507) and the screen (8) to move vertically downward, and moves the screen (8) to the top of the semiconductor circuit board. S3. The cylinder (15) drives the squeegee to move downward, and the linear module (13) drives the connecting block (14), the cylinder (15) and the squeegee to move horizontally to perform screen printing on the semiconductor circuit board. S4. When the screen (8) moves vertically downward, it will drive the third rack (905) to move downward, causing the first rack (206) to drive the first gear (207) to rotate, which will cause the second rack (209) to drive the rectangular slide (210) and the clamping block to move towards the semiconductor circuit board, thereby automatically assisting in fixing and correcting the semiconductor circuit board's position. S5. Manually operate the hand crank (904) to drive the second rotating shaft (903) and the second gear (902) to rotate, adjust the height of the third rack (905), and then adjust the position of the second rack (209) and the clamping block to facilitate auxiliary fixing and correction of semiconductor circuit boards of different sizes. S6. After the semiconductor circuit board screen printing is completed, the screen-printed semiconductor circuit board is conveyed by the conveyor belt (1). At the same time, the motor (501) reverses to drive the threaded sleeve (506) and the plate (507) to move upward. At this time, the plate (507) will spray the hot gas stored inside the air bag (601) through the air outlet (604), the fourth inner cavity and the nozzle to dry the screen-printed semiconductor circuit board. S7. Manually operate the screw to move it upward, releasing the fixed state between the plate (507) and the sliding block (10). At this time, manually operate the screen (8) to move the ball rod (11) away from the slot (12), so that the screen (8) can be disassembled and replaced.

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