Processing system for built-in printed circuit board of display screen

Abstract

A display screen built-in printed circuit board processing system disclosed by the present invention comprises a workbench, a feeding mechanism, supports and a drilling mechanism, the top of the workbench is provided with the feeding mechanism, the feeding mechanism comprises a roller conveyor, the two sides of the workbench are provided with the supports, the inner sides of the tops of the supports are provided with the drilling mechanism, and the workbench is provided with a control module. The drilling mechanism comprises a moving frame and a moving mechanism, the moving mechanism convenient to move is arranged at the bottom of the moving frame, a supporting seat is arranged at the bottom of the moving mechanism, and an air cylinder is arranged on the supporting seat; through reasonable layout of the feeding mechanism, the support and the drilling mechanism, automation of processing of the printed circuit board is achieved, efficient processing of the printed circuit board arranged in the display screen is achieved, in the drilling process, a sensing transmitter and a sensing receiver are adopted for positioning, repeated manual adjustment is avoided, the processing period is greatly shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board processing, and in particular to a processing system for a printed circuit board built into a display screen. Background Art

[0002] Display screens have become an indispensable component in all kinds of electronic devices. From traditional LCDs to organic light-emitting diode screens, and then to the latest micro-light-emitting diode display technology, the performance of display screens has been continuously improved, and the application scenarios have become increasingly extensive. In these displays, the built-in printed circuit board plays a vital role. It is not only responsible for the transmission of power and signals, but also related to the stability and reliability of the entire display system.

[0003] The processing method of the built-in printed circuit board of the display usually includes multiple steps, such as circuit design, plate cutting, drilling, electroplating, pattern transfer, etching, welding, etc. During the drilling process, some built-in printed circuit boards of the display need to be punched on both sides. In high-speed signal transmission and high-frequency circuit design, the well-designed double-sided holes can reduce the cross interference of signals and improve signal integrity. For mass production, the existing punching process requires multiple positioning and adjustments, which increases the production steps and reduces the operating efficiency of the production line. Multiple positioning may affect the quality of the punching process of the built-in printed circuit board of the display. Summary of the invention

[0004] The object of the present invention is to provide a processing system for a display screen built-in printed circuit board to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a processing system for a printed circuit board built into a display screen, comprising a workbench, a feeding mechanism, a bracket and a drilling mechanism, wherein a feeding mechanism is arranged on the top of the workbench, the feeding mechanism comprises a roller conveyor, brackets are arranged on both sides of the workbench, a drilling mechanism is arranged on the top inner side of the bracket, a control module is arranged on the workbench, the drilling mechanism comprises a moving frame and a moving mechanism, a moving mechanism for easy movement is arranged at the bottom of the moving frame, a supporting seat is arranged at the bottom of the moving mechanism, a cylinder is arranged on the supporting seat, a mounting round seat is arranged at the telescopic end of the cylinder through the supporting seat, a drill bit is arranged at the bottom of the mounting round seat, an air supply cylinder is arranged on one side of the mounting round seat through a connecting rod, a microporous plate is arranged at the other end of the air supply cylinder, a blowing assembly for easy opening and closing is arranged between the air supply cylinder and the mounting round seat, a lifting cylinder is arranged on the top of the workbench, a top frame is arranged at the telescopic end of the lifting cylinder, and a positioning assembly for easy flipping is arranged on the workbench.

[0006] Preferably, a sensor transmitter is provided on one inner side of the workbench, and a sensor receiver is provided on the other inner side of the workbench, and both the sensor transmitter and the sensor receiver are electrically connected to the control module.

[0007] Preferably, the air supply cylinder is arranged at an angle, a micro-blowing mechanism is arranged at the end of the air supply cylinder, the micro-blowing mechanism is connected to the cylinder body of the air supply cylinder, the top frame is a block structure, and the feeding mechanism is arranged through the top.

[0008] Preferably, the blowing assembly includes a side seat, a side seat is provided on one side of the air supply tube, a circular groove is provided at the bottom of the mounting circular seat, a cover plate is provided at the opening of the circular groove, an abutment rod is slidably inserted on the cover plate, an airbag tube is provided between the abutment rod and the circular groove, and a connecting tube is provided at one end of the airbag tube.

[0009] Preferably, a slide groove is provided inside the side seat, and an air blocking block is slidably inserted into the slide groove, and the end of the air blocking block is inserted into the cross-section of the cylinder of the air supply cylinder, a supporting spring is arranged between the air blocking block and the slide groove, and an air bag block is arranged between the air blocking block and the other end of the slide groove, and the air bag block is connected to the connecting pipe.

[0010] Preferably, the positioning assembly includes a transmission screw, a through slot is opened on one side of the workbench, the transmission screw is located in the through slot and is rotatably connected to the workbench through a bearing, a slider is sleeved on the transmission screw, the slider and the transmission screw are connected by internal and external threads, a transmission shaft is arranged on the slider, and an L-shaped seat is arranged at the end of the transmission shaft.

[0011] Preferably, a support frame is arranged between the two L-shaped seats, the support frame is provided with a movable groove, a transmission double screw is arranged on the support frame in the movable groove, the transmission double screw has a double screw structure and the thread rotation directions are opposite, movable bars are arranged on both sides of the transmission double screw, the movable bar is connected to the transmission double screw by internal and external threads, a fixed seat is arranged at the end of the movable bar, and a first magnetic suction block is arranged on the bottom side of the end of the L-shaped seat.

[0012] Preferably, a receiving groove is provided on the fixing seat, a connecting rod is slidably inserted on the receiving groove, a top block is provided at the end of the connecting rod, a first airbag is provided between the connecting rod and the receiving groove, and a connecting tube is provided at the end of the first airbag.

[0013] Preferably, a storage groove is provided on the L-shaped seat, a gear block is slidably inserted on the storage groove, a second airbag is arranged between the gear block and the storage groove, the second airbag is connected to the connecting pipe, a rotating shaft is rotatably connected to the bottom of the L-shaped seat, and a reset spring is fixedly connected between the gear block and the storage groove.

[0014] Preferably, an abutment block is fixedly sleeved on the rotating shaft, a gear is provided on the rotating shaft, the gear is meshed with the gear block, a second magnetic block is provided on the abutment block, and the second magnetic block and the first magnetic block attract each other.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention realizes the automation of printed circuit board processing and the efficient processing of the printed circuit board built into the display screen through the reasonable layout of the feeding mechanism, the bracket and the drilling mechanism. During the drilling process, the sensor transmitter and the sensor receiver are used for positioning, so that the processing process can be monitored in real time, avoiding multiple manual adjustments, greatly shortening the processing cycle and improving production efficiency.

[0017] 2. The present invention optimizes the production process by adopting automatic control technology. During the drilling process, the printed circuit board is flipped and positioned by controlling the stopping of the roller conveyor, the extension and retraction of the lifting cylinder, the up and down movement of the slider, and the rotation of the transmission twin screws, thereby simplifying the production steps and reducing the production cost. In addition, multiple cylinders and magnetic blocks are used for fixing and positioning, ensuring the stability of the printed circuit board during the processing and avoiding processing errors caused by vibration or displacement.

[0018] 3. The present invention provides cooling airflow to the drill bit through the air supply tube during the drilling process, thereby effectively reducing the temperature of the drill bit, preventing the drill bit from being worn due to excessive temperature, and blowing away the debris generated by drilling, thereby ensuring the drilling accuracy and the quality of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a schematic structural diagram of a processing system for a display screen with a built-in printed circuit board.

[0020] Figure 2 It is a structural schematic diagram of the support and drilling mechanism of the present invention.

[0021] Figure 3 It is a structural schematic diagram of the drilling mechanism of the present invention.

[0022] Figure 4 It is a cross-sectional view between the air supply tube and the mounting round seat of the present invention.

[0023] Figure 5 For the present invention Figure 4 Schematic diagram of the structure enlarged at point A in the middle.

[0024] Figure 6 It is a schematic structural diagram of the inner side of the workbench of the present invention.

[0025] Figure 7 It is a structural schematic diagram of the outer side of the workbench of the present invention.

[0026] Figure 8 It is a structural schematic diagram of the positioning component of the present invention.

[0027] Fig. 9 It is a structural schematic diagram of the top frame of the present invention.

[0028] Fig.10 It is a cross-sectional view between the L-shaped seat and the fixing seat of the present invention.

[0029] Fig.11 For the present invention Fig.10 Schematic diagram of the enlarged structure at point B.

[0030] In the figure: workbench 1; sensor transmitter 11; sensor receiver 12; control module 13; feeding mechanism 2; bracket 3; drilling mechanism 4; moving mechanism 41; support seat 42; cylinder 43; mounting round seat 5; drill bit 51; cover plate 52; abutment rod 53; air bag tube 54; connecting pipe 55; air supply tube 6; micro blower mechanism 61; side seat 62; microporous plate 63; air blocking block 64; air bag block 65; support spring 6 6; top frame 7; lifting cylinder 71; transmission screw 8; slider 81; transmission shaft 82; L-shaped seat 83; first magnetic block 831; support frame 84; transmission double screw 85; moving bar 86; fixed seat 87; abutment block 88; second magnetic block 881; rotating shaft 882; gear 883; connecting rod 9; top block 91; first air bag 92; connecting pipe 93; second air bag 94; gear block 95; return spring 96. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1 The present invention provides a technical solution: a processing system for a built-in printed circuit board in a display screen, comprising a workbench 1, a feeding mechanism 2, a bracket 3 and a drilling mechanism 4. The feeding mechanism 2 is installed on the top of the workbench 1. The feeding mechanism 2 includes a roller conveyor. The roller conveyor is a common device in the prior art and will not be described in detail. The roller conveyor is used to convey the built-in printed circuit board of the display screen to be processed to a designated position for drilling operation. The brackets 3 are fixedly connected to both sides of the workbench 1, the inner side of the top of the bracket 3 is connected to the drilling mechanism 4, and a control module 13 is installed on the workbench 1.

[0033] Figure 6It is a structural schematic diagram of the inner side of the workbench of the present invention. A sensor transmitter 11 is installed on one side of the inner side of the workbench 1, and a sensor receiver 12 is arranged on the other side of the inner side of the workbench 1. The sensor transmitter 11 and the sensor receiver 12 are electrically connected to the control module. The sensor transmitter 11 sends a signal, and the sensor receiver 12 receives the signal. The position and state of the circuit board are judged according to the change of the signal. The control module receives the signal from the sensor transmitter 11 and the sensor receiver 12, and controls the action of the feeding mechanism and the drilling mechanism components according to the preset program and algorithm to realize automated processing.

[0034] Figure 2 It is a structural schematic diagram of the support and drilling mechanism of the present invention. The drilling mechanism 4 includes a moving frame and a moving mechanism 41. The bottom of the moving frame is provided with a moving mechanism 41 for easy movement. A support seat 42 is installed at the bottom of the moving mechanism 41. A cylinder 43 is installed on the support seat 42. The cylinder 43 is a common device in this field, and its model can be selected according to actual working conditions. The telescopic end of the cylinder 43 passes through the support seat 42 and is fixedly connected with a mounting round seat 5. A drill bit 51 is installed at the bottom of the mounting round seat 5. The cylinder 43 is used to provide power to move the drill bit 51 up and down along the vertical direction to realize the drilling action.

[0035] Figure 3 This is a structural schematic diagram of the drilling mechanism of the present invention. One side of the mounting round seat 5 is fixedly connected with an air supply cylinder 6 through a connecting rod. The air supply cylinder 6 is arranged at an angle. A micro-blowing mechanism 61 is installed at the end of the air supply cylinder 6. The micro-blowing mechanism 61 is connected to the cylinder body of the air supply cylinder 6. A microporous plate 63 is installed at the other end of the air supply cylinder 6. The function of the micro-blowing mechanism 61 is to provide cooling airflow to the drill bit 51 through the air supply cylinder 6 during the drilling process to help reduce the temperature of the drill bit and blow away the debris generated by drilling to prevent the accumulation of debris from affecting the drilling accuracy or damaging the circuit board.

[0036] Figure 4 This is a cross-sectional view between the air supply tube and the mounting round seat of the present invention. Figure 5 For the present invention Figure 4 In the enlarged structural schematic diagram at point A, a blowing assembly that is easy to open and close is provided between the air supply cylinder 6 and the mounting round seat 5, and the blowing assembly includes a side seat 62, one side of the air supply cylinder 6 is fixedly connected to the side seat 62, a circular groove is provided at the bottom of the mounting round seat 5, a cover plate 52 is fixed at the opening of the circular groove by screws, an abutment rod 53 is slidably inserted on the cover plate 52, an airbag tube 54 is bonded between the abutment rod 53 and the circular groove, and one end of the airbag tube 54 is connected to a connecting pipe 55.

[0037] Fig. 9This is a schematic diagram of the structure of the top frame of the present invention, a slide groove is provided inside the side seat 62, and a wind blocking block 64 is slidably inserted on the slide groove, and the end of the wind blocking block 64 is inserted into the cross-section of the cylinder body of the air supply tube 6, and a support spring 66 is fixedly connected between the wind blocking block 64 and the slide groove, and an air bag block 65 is bonded between the air blocking block 64 and the other end of the slide groove, and the air bag block 65 is connected to the connecting pipe 55. The models and specifications of the air bag block 65 and the air bag tube 54 can be selected according to actual working conditions. The elastic force of the support spring 66 is greater than the air pressure of the air bag block 65 and the air bag tube 54 in the absence of other external forces. A lifting cylinder 71 is installed on the top of the workbench 1, and the telescopic end of the lifting cylinder 71 is fixedly connected to the top frame 7. The top frame 7 is a block structure, and the top passes through the feeding mechanism 2.

[0038] During the drilling process of the drill bit 51, the drilling mechanism 4 needs to move downward. At this time, the abutment rod 53 abuts against the printed circuit board. When the abutment rod 53 is subjected to the abutment pressure of the printed circuit board, the airbag tube 54 is compressed, so that the gas in the airbag tube 54 is transmitted to the airbag block 65 through the connecting pipe 55. The airbag block 65 expands and squeezes the air blocking block 64 to move, so that the end of the air blocking block 64 is away from the cross-section of the cylinder of the air supply tube 6, and the opening of the cylinder of the air supply tube 6 is realized. During the drilling process of the drill bit 51, the air supply tube 6 provides cooling airflow to the drill bit 51 to help reduce the drill bit temperature, and can blow away the debris generated by drilling to prevent the accumulation of debris from affecting the drilling accuracy or damaging the circuit board.

[0039] Figure 7 It is a structural schematic diagram of the outer side of the workbench of the present invention. A positioning assembly for easy flipping is arranged on the workbench 1, and the positioning assembly includes a transmission screw 8, and a first motor is installed at one end of the transmission screw 8. A through slot is opened on one side of the workbench 1. The transmission screw 8 is located in the through slot and is rotatably connected to the workbench 1 through a bearing. A slider 81 is sleeved on the transmission screw 8, and the slider 81 and the transmission screw 8 are connected by internal and external threads. The rotational motion of the transmission screw 8 at the end of the first motor is converted into a linear motion of the slider 81, which is achieved by the internal and external thread connection, allowing the slider 81 to move up and down along the through slot on the side of the workbench 1, thereby driving the slider 81 to move up and down, so as to make room for flipping the printed circuit board to be processed.

[0040] Figure 8 This is a structural schematic diagram of the positioning assembly of the present invention. A transmission shaft 82 is rotatably connected to the slider 81 through a bearing, a second motor is installed at one end of the transmission shaft 82, an L-shaped seat 83 is fixedly connected to the end of the transmission shaft 82, a support frame 84 is fixedly connected between the two L-shaped seats 83, a movable groove is opened on the support frame 84, and a transmission double screw 85 is rotatably connected to the support frame 84 in the movable groove through a bearing.

[0041] A third motor is installed at one end of the transmission twin screw 85. The transmission twin screw 85 has a twin screw structure and the threads rotate in opposite directions. Moving bars 86 are sleeved on both sides of the transmission twin screw 85. The moving bars 86 and the transmission twin screw 85 are connected by internal and external threads. The transmission twin screw 85 is driven by the third motor to rotate, thereby driving the moving bars 86 on both sides to approach each other, thereby clamping the printed circuit board.

[0042] Fig.10 It is a cross-sectional view between the L-shaped seat and the fixing seat of the present invention. Fig.11 For the present invention Fig.10 In the enlarged structural schematic diagram at point B, the end of the movable bar 86 is connected to the fixed seat 87, the bottom side of the end of the L-shaped seat 83 is embedded with a first magnetic block 831, the fixed seat 87 is provided with a receiving groove, a connecting rod 9 is slidably inserted into the receiving groove, the end of the connecting rod 9 is fixedly connected to a top block 91, a first airbag 92 is bonded between the connecting rod 9 and the receiving groove, the end of the first airbag 92 is connected to a connecting tube 93, and the length of the connecting tube 93 can be selected according to the actual working conditions.

[0043] A storage groove is provided on the L-shaped seat 83, and a gear block 95 is slidably inserted on the storage groove. A second airbag 94 is bonded between the gear block 95 and the storage groove, and the second airbag 94 is connected to the connecting pipe 93. A reset spring 96 is fixedly connected between the gear block 95 and the storage groove. A rotating shaft 882 is rotatably connected to the bottom of the L-shaped seat 83, and an abutment block 88 is fixedly sleeved on the rotating shaft 882. A gear 883 is sleeved on the rotating shaft 882, and the gear 883 is meshed with the gear block 95. The models and specifications of the first airbag 92 and the second airbag 94 can be selected according to actual working conditions. The elastic force of the reset spring 96 is greater than the air pressure of the first airbag 92 and the second airbag 94 in the absence of other external forces.

[0044] When the movable blocks 86 on both sides approach each other, the fixed seats 87 on both sides also approach each other, and the top block 91 is abutted by the printed circuit board, so that the top block 91 approaches the accommodating groove, and the connecting rod 9 compresses the first airbag 92. The gas in the first airbag 92 is transmitted to the second airbag 94 through the connecting tube 93. The second airbag 94 expands and squeezes the gear block 95 to move. The gear block 95 drives the gear 883 and the rotating shaft 882 to rotate, so that the abutment block 88 rotates and abuts against the surface of the printed circuit board.

[0045] A second magnetic block 881 is embedded in the abutment block 88. The second magnetic block 881 and the first magnetic block 831 attract each other. The first magnetic block 831 and the second magnetic block 881 interact with each other to assist in fixing and positioning the printed circuit board, further improving the stability during processing and facilitating the stability of flipping.

[0046] In actual use, the roller conveyor in the feeding mechanism 2 is started to convey the built-in printed circuit board of the display screen to be processed, the sensor transmitter 11 sends a signal, the sensor receiver 12 receives the signal, the control module receives the signal from the sensor transmitter 11 and the sensor receiver 12, and controls the roller conveyor to stop according to the preset program and algorithm, and the lifting cylinder 71 is started to lift the built-in printed circuit board upward at its telescopic end so that the edge of the built-in printed circuit board abuts against the L-shaped seat 83 on both sides, and the rotational motion of the end transmission screw 8 of the first motor is converted into the linear motion of the slider 81, which is achieved by the internal and external thread connection, allowing the slider 81 to move along The through slot on the side of the workbench 1 moves up and down, driving the slider 81 to move up and down, so as to make room for the printed circuit board to be processed to turn over. The transmission double screw 85 is driven by the third motor to rotate, thereby driving the moving blocks 86 on both sides to approach each other, thereby clamping the printed circuit board. When the moving blocks 86 on both sides approach each other, the fixed seats 87 on both sides also approach each other, and the top block 91 is abutted by the printed circuit board, so that the top block 91 approaches the receiving groove, and the connecting rod 9 compresses the first airbag 92. The gas in the first airbag 92 is transmitted to the second airbag 94 through the connecting pipe 93. The second airbag 94 expands and squeezes the gear block 9 5 moves, the gear block 95 drives the gear 883 and the rotating shaft 882 to rotate, so that the abutting block 88 rotates and abuts on the surface of the printed circuit board, the first magnetic block 831 interacts with the second magnetic block 881 to assist in fixing and positioning the printed circuit board, and further improves the stability during processing, and then the transmission shaft 82 rotates by starting the second motor, driving the entire printed circuit board and the L-shaped seat 83 to flip, and then flip the printed circuit board to the other side, the drill bit 51 finds the corresponding position under the drive of the moving mechanism 41, and the cylinder 43 is used to provide power to make the drill bit 51 move up and down along the vertical direction for subsequent drilling actions, and in the drilling process When the mechanism 4 moves downward, the abutment rod 53 abuts against the printed circuit board. When the abutment rod 53 is subjected to the abutment pressure of the printed circuit board, the airbag tube 54 is compressed, so that the gas in the airbag tube 54 is transmitted to the airbag block 65 through the connecting pipe 55. The airbag block 65 expands and squeezes the air blocking block 64 to move, so that the end of the air blocking block 64 is away from the cross-section of the cylinder of the air supply tube 6, and the opening of the cylinder of the air supply tube 6 is realized, so that during the drilling process, the drill bit 51 can provide cooling airflow to the drill bit 51 through the air supply tube 6 to help reduce the drill bit temperature and blow away the debris generated by drilling to prevent the accumulation of debris from affecting the drilling accuracy or damaging the circuit board.

[0047] The present invention optimizes the production process by adopting automatic control technology. During the drilling process, the printed circuit board is flipped and positioned by controlling the stopping of the roller conveyor, the extension and retraction of the lifting cylinder 71, the up and down movement of the slider 81, and the rotation of the transmission double screw 85, thereby simplifying the production steps and reducing the production cost. In addition, multiple cylinders and magnetic blocks are used for fixing and positioning, thereby ensuring the stability of the printed circuit board during the processing and avoiding processing errors caused by vibration or displacement.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A processing system for a printed circuit board built into a display screen, comprising a workbench (1), a feeding mechanism (2), a bracket (3) and a drilling mechanism (4), characterized in that: A feeding mechanism (2) is arranged on the top of the workbench (1), and the feeding mechanism (2) includes a roller conveyor. Brackets (3) are arranged on both sides of the workbench (1), and a drilling mechanism (4) is arranged on the inner side of the top of the bracket (3). A control module (13) is arranged on the workbench (1), and the drilling mechanism (4) includes a moving frame and a moving mechanism (41). A moving mechanism (41) that is easy to move is arranged at the bottom of the moving frame, and a support seat (42) is arranged at the bottom of the moving mechanism (41), and a cylinder (43) is arranged on the support seat (42), and the cylinder ( The telescopic end of the mounting round seat (43) passes through the support seat (42) and is provided with a mounting round seat (5), the bottom of the mounting round seat (5) is provided with a drill bit (51), one side of the mounting round seat (5) is provided with an air supply tube (6) through a connecting rod, the other end of the air supply tube (6) is provided with a microporous plate (63), a blowing component that is easy to open and close is provided between the air supply tube (6) and the mounting round seat (5), a lifting cylinder (71) is provided on the top of the workbench (1), a top frame (7) is provided at the telescopic end of the lifting cylinder (71), and a positioning component that is easy to flip is provided on the workbench (1).

2. A processing system for a display screen built-in printed circuit board according to claim 1, characterized in that: A sensor transmitter (11) is arranged on one side of the inner side of the workbench (1), and a sensor receiver (12) is arranged on the other side of the inner side of the workbench (1). Both the sensor transmitter (11) and the sensor receiver (12) are electrically connected to the control module.

3. A processing system for a display screen built-in printed circuit board according to claim 1, characterized in that: The air supply cylinder (6) is arranged in an inclined manner, and a micro-blowing mechanism (61) is arranged at the end of the air supply cylinder (6). The micro-blowing mechanism (61) is connected to the cylinder body of the air supply cylinder (6). The top frame (7) is a block-shaped structure, and the top is arranged to penetrate the feeding mechanism (2).

4. The processing system of a display screen built-in printed circuit board according to claim 1, characterized in that: The blowing assembly comprises a side seat (62), a side of the air supply tube (6) is provided with the side seat (62), a bottom of the mounting round seat (5) is provided with a circular groove, a cover plate (52) is provided at the opening of the circular groove, an abutment rod (53) is slidably inserted on the cover plate (52), an air bag tube (54) is provided between the abutment rod (53) and the circular groove, and a connecting pipe (55) is provided at one end of the air bag tube (54).

5. A processing system for a display screen built-in printed circuit board according to claim 4, characterized in that: A slide groove is provided inside the side seat (62), and a wind blocking block (64) is slidably inserted into the slide groove. The end of the wind blocking block (64) is inserted into the cross section of the cylinder body of the air supply cylinder (6). A support spring (66) is provided between the wind blocking block (64) and the slide groove. An air bag block (65) is provided between the wind blocking block (64) and the other end of the slide groove. The air bag block (65) is connected to the connecting pipe (55).

6. The processing system of a display screen built-in printed circuit board according to claim 1, characterized in that: The positioning assembly comprises a transmission screw (8), a through slot is provided on one side of the workbench (1), the transmission screw (8) is located in the through slot and is rotatably connected to the workbench (1) via a bearing, a slider (81) is sleeved on the transmission screw (8), the slider (81) and the transmission screw (8) are connected by internal and external threads, a transmission shaft (82) is provided on the slider (81), and an L-shaped seat (83) is provided at the end of the transmission shaft (82).

7. A processing system for a display screen built-in printed circuit board according to claim 6, characterized in that: A support frame (84) is arranged between the two L-shaped seats (83), a movable groove is provided on the support frame (84), a transmission double screw (85) is arranged in the movable groove on the support frame (84), the transmission double screw (85) is in a double screw structure and the screw threads are in opposite directions, a movable bar (86) is arranged on both sides of the transmission double screw (85), the movable bar (86) and the transmission double screw (85) are connected by internal and external threads, a fixed seat (87) is arranged at the end of the movable bar (86), and a first magnetic attraction block (831) is arranged at the bottom side of the end of the L-shaped seat (83).

8. The processing system of a display screen built-in printed circuit board according to claim 7, characterized in that: The fixing seat (87) is provided with a receiving groove, a connecting rod (9) is slidably inserted into the receiving groove, a top block (91) is provided at the end of the connecting rod (9), a first air bag (92) is provided between the connecting rod (9) and the receiving groove, and a connecting pipe (93) is provided at the end of the first air bag (92).

9. The processing system of a display screen built-in printed circuit board according to claim 6, characterized in that: The L-shaped seat (83) is provided with a receiving groove, a gear block (95) is slidably inserted in the receiving groove, a second air bag (94) is arranged between the gear block (95) and the receiving groove, the second air bag (94) is connected to the connecting pipe (93), a rotating shaft (882) is rotatably connected to the bottom of the L-shaped seat (83), and a return spring (96) is fixedly connected between the gear block (95) and the receiving groove.

10. A processing system for a display screen built-in printed circuit board according to claim 9, characterized in that: The rotating shaft (882) is fixedly sleeved with an abutment block (88), the rotating shaft (882) is provided with a gear (883), the gear (883) is meshed with the gear block (95), the abutment block (88) is provided with a second magnetic attraction block (881), and the second magnetic attraction block (881) and the first magnetic attraction block (831) attract each other.

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