A processing system for a printed circuit board built into a display screen

Abstract

The present invention discloses a processing system for a printed circuit board built into a display screen, which includes a workbench, a feeding mechanism, a bracket and a drilling mechanism. A feeding mechanism is arranged on the top of the workbench. The feeding mechanism includes a roller conveyor. Brackets are arranged on both sides of the workbench. A drilling mechanism is arranged on the inner side of the top of the bracket. A control module is arranged on the workbench. The drilling mechanism includes a moving frame and a moving mechanism. A moving mechanism for facilitating movement is arranged at the bottom of the moving frame. A support seat is arranged at the bottom of the moving mechanism, and a cylinder is arranged on the support seat. Through the reasonable layout of the feeding mechanism, the bracket and the drilling mechanism, the present invention realizes the automation of printed circuit board processing, realizes the efficient processing of the printed circuit board built into the display screen. During the drilling process, a sensing transmitter and a sensing receiver are used for positioning, avoiding multiple manual adjustments, greatly shortening the processing cycle and improving the production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board processing, and particularly 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 various electronic devices. From traditional liquid crystal displays 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 also become increasingly extensive. Among these display screens, the built-in printed circuit board plays a crucial role, 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 printed circuit board built into the display screen usually includes multiple steps, such as circuit design, sheet cutting, drilling, electroplating, pattern transfer, etching, welding, etc. During the drilling process, some printed circuit boards built into the display screen need to be drilled on both sides. In high-speed signal transmission and high-frequency circuit design, reasonably designed double-sided holes can reduce signal cross-interference and improve signal integrity. For mass production, the existing drilling process requires multiple positioning and adjustments, which increases the production steps and reduces the operation efficiency of the production line. Multiple positioning may affect the quality of the drilling process of the printed circuit board built into the display screen. Summary of the Invention

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

[0005] To achieve the above purpose, the present invention provides the following technical solution: A processing system for a printed circuit board built into a display screen, including a workbench, a feeding mechanism, a bracket, and a drilling mechanism. A feeding mechanism is arranged on the top of the workbench. The feeding mechanism includes a roller conveyor. Brackets are arranged on both sides of the workbench. The inner side of the top of the bracket is provided with a drilling mechanism. A control module is arranged on the workbench. The drilling mechanism includes a moving frame and a moving mechanism. The bottom of the moving frame is provided with a moving mechanism for easy movement. The bottom of the moving mechanism is provided with a support seat. A cylinder is arranged on the support seat. The telescopic end of the cylinder penetrates through the support seat and is provided with a mounting round seat. A drill bit is arranged at the bottom of the mounting round seat. One side of the mounting round seat is provided with a blowing air cylinder through a connecting rod. The other end of the blowing air cylinder is provided with a microporous plate. A blowing component for easy opening and closing is arranged between the blowing air cylinder and the mounting round seat. A lifting cylinder is arranged on the top of the workbench. The telescopic end of the lifting cylinder is provided with a top frame. A positioning component for easy flipping is arranged on the workbench.

[0006] Preferably, a sensing transmitter is arranged on one side inside the workbench, and a sensing receiver is arranged on the other side inside the workbench. Both the sensing transmitter and the sensing receiver are electrically connected to the control module.

[0007] Preferably, the air supply cylinder is inclined, and a micro air blowing mechanism is arranged at the end of the air supply cylinder. The micro air blowing mechanism is communicated with the cylinder body of the air supply cylinder. The top frame is in a block structure and penetrates through the feeding mechanism at the top.

[0008] Preferably, the air blowing assembly includes a side seat. A side seat is arranged on one side of the air supply cylinder. A circular groove is opened at the bottom of the mounting circular seat. A cover plate is arranged at the opening of the circular groove. A butting rod is slidably inserted into the cover plate. An air bag cylinder is arranged between the butting rod and the circular groove. One end of the air bag cylinder is provided with a communicating pipe.

[0009] Preferably, a sliding groove is opened inside the side seat. A wind blocking block is slidably inserted into the sliding groove. The end of the wind blocking block is inserted into the cross section of the cylinder body of the air supply cylinder. A support spring is arranged between the wind blocking block and the sliding groove. An air bag block is arranged between the wind blocking block and the other end of the sliding groove. The air bag block is communicated with the communicating pipe.

[0010] Preferably, the positioning assembly includes a transmission screw rod. A through groove is opened on one side of the workbench. The transmission screw rod is rotatably connected to the workbench through a bearing in the through groove. A sliding block is sleeved on the transmission screw rod. The sliding block is internally and externally threaded with the transmission screw rod. A transmission shaft is arranged on the sliding block. 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. An activity groove is opened on the support frame. A transmission double screw rod is arranged in the activity groove on the support frame. The transmission double screw rod is in a double screw structure and the thread helix directions are opposite. Moving strip blocks are arranged on both sides of the transmission double screw rod. The moving strip blocks are internally and externally threaded with the transmission double screw rod. A fixed seat is arranged at the end of the moving strip block. A first magnetic attraction block is arranged at the bottom side of the end of the L-shaped seat.

[0012] Preferably, a receiving groove is opened on the fixed seat. A connecting rod is slidably inserted into the receiving groove. A top block is arranged at the end of the connecting rod. A first air bag is arranged between the connecting rod and the receiving groove. A connecting pipe is arranged at the end of the first air bag.

[0013] Preferably, a storage groove is opened on the L-shaped seat. A gear block is slidably inserted into the storage groove. A second air bag is arranged between the gear block and the storage groove. The second air bag is communicated with the connecting pipe. A rotating shaft is rotatably connected to the bottom of the L-shaped seat. A return spring is fixedly connected between the gear block and the storage groove.

[0014] Preferably, an abutting block is fixedly sleeved on the rotating shaft. A gear is arranged on the rotating shaft. The gear is meshed with the gear block. A second magnetic attraction block is arranged on the abutting block. The second magnetic attraction block and the first magnetic attraction block attract each other.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The present invention realizes the automation of printed circuit board processing through the reasonable layout of the feeding mechanism, the bracket and the drilling mechanism, and realizes the efficient processing of the printed circuit board built into the display screen. During the drilling process, a sensing transmitter and a sensing 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 the production efficiency.

[0017] 2. The present invention realizes the optimization of the production process by adopting the automatic control technology. During the drilling process, by controlling the stop of the roller conveyor, the telescoping of the lifting cylinder, the up and down movement of the slider, and the rotation of the driving double screw, the flipping and positioning of the printed circuit board are realized, simplifying the production steps, reducing the production cost, and using multiple cylinders and magnetic suction blocks for fixation and positioning to ensure the stability of the printed circuit board during the processing process and avoid the processing errors caused by vibration or displacement.

[0018] 3. During the drilling process of the present invention, a cooling air flow is provided to the drill bit through the air supply cylinder, effectively reducing the temperature of the drill bit, preventing the wear of the drill bit caused by too high temperature, and at the same time blowing away the debris generated by drilling to ensure the drilling accuracy and the quality of the circuit board. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the processing system of the printed circuit board built into the display screen of the present invention.

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

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

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

[0023] Figure 5 For the present invention Figure 4 The enlarged schematic structural diagram at position A in.

[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 schematic structural diagram of the outer side of the workbench of the present invention.

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

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

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

[0029] Figure 11 For the present invention Figure 10 is a schematic enlarged view of the structure at position B in the present invention.

[0030] In the figure: workbench 1; sensing transmitter 11; sensing receiver 12; control module 13; feeding mechanism 2; bracket 3; drilling mechanism 4; moving mechanism 41; support base 42; cylinder 43; mounting round seat 5; drill bit 51; cover plate 52; abutting rod 53; airbag cylinder 54; connecting pipe 55; air supply cylinder 6; micro air blowing mechanism 61; side seat 62; microporous plate 63; air blocking block 64; airbag block 65; support spring 66; top frame 7; lifting cylinder 71; transmission screw rod 8; slider 81; transmission shaft 82; L-shaped seat 83; first magnetic attraction block 831; support frame 84; transmission double screw rod 85; moving bar block 86; fixed seat 87; abutting block 88; second magnetic attraction block 881; rotating shaft 882; gear 883; connecting rod 9; top block 91; first airbag 92; connecting pipe 93; second airbag 94; gear block 95; reset spring 96. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figure 1 is a schematic structural view of a processing system for a printed circuit board built into a display screen of the present invention. The present invention provides a technical solution: a processing system for a printed circuit board built into a display screen, including a workbench 1, a feeding mechanism 2, a bracket 3, and a drilling mechanism 4. A feeding mechanism 2 is installed on the top of the workbench 1. The feeding mechanism 2 includes a roller conveyor, which is a common device in the prior art and will not be described in detail. The roller conveyor is used to convey the printed circuit board built into the display screen to be processed to a specified position for drilling operations. Brackets 3 are fixedly connected to both sides of the workbench 1, and a drilling mechanism 4 is connected to the inner side of the top of the brackets 3. A control module 13 is installed on the workbench 1.

[0033] Figure 6This is a schematic diagram of the inner structure of the workbench of the present invention. On one side of the inner side of the workbench 1, a sensing transmitter 11 is installed. On the other side of the inner side of the workbench 1, a sensing receiver 12 is provided. Both the sensing transmitter 11 and the sensing receiver 12 are electrically connected to the control module. The sensing transmitter 11 emits signals, and the sensing receiver 12 receives signals. According to the change of the signals, the position and state of the circuit board are judged. The control module receives the signals from the sensing transmitter 11 and the sensing receiver 12, and controls the actions of the feeding mechanism and the drilling mechanism components according to the preset programs and algorithms to achieve automated processing.

[0034] Figure 2 This is a schematic diagram of the structure of the bracket and the drilling mechanism of the present invention. The drilling mechanism 4 includes a moving frame and a moving mechanism 41. A moving mechanism 41 for facilitating movement is provided at the bottom of the moving frame. 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 the art, and its model can be selected according to the actual working conditions. The telescopic end of the cylinder 43 penetrates through the support seat 42 and is fixedly connected to an installation round seat 5. A drill bit 51 is installed at the bottom of the installation round seat 5. The cylinder 43 is used to provide power to make the drill bit 51 move up and down along the vertical direction to achieve the drilling action.

[0035] Figure 3 This is a schematic diagram of the structure of the drilling mechanism of the present invention. One side of the installation round seat 5 is fixedly connected to an air supply cylinder 6 through a connecting rod. The air supply cylinder 6 is inclined. A micro air blowing mechanism 61 is installed at the end of the air supply cylinder 6. The micro air blowing mechanism 61 is communicated with the barrel 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 air blowing mechanism 61 is to provide a cooling air flow 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 can 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 cylinder and the installation round seat of the present invention. Figure 5 This is the present invention Figure 4 The enlarged schematic diagram of the structure at A in the present invention. A blowing assembly for facilitating opening and closing is provided between the air supply cylinder 6 and the installation round seat 5. 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 opened at the bottom of the installation round seat 5. A cover plate 52 is fixed by screws at the opening of the circular groove. A butting rod 53 is slidably inserted into the cover plate 52. An airbag cylinder 54 is bonded between the butting rod 53 and the circular groove. One end of the airbag cylinder 54 is communicated with a connecting pipe 55.

[0037] Figure 9This is a schematic structural diagram of the top frame of the present invention. A chute is provided inside the side seat 62. A wind blocking block 64 is slidably inserted into the chute. The end of the wind blocking block 64 is inserted into the cross-section of the barrel of the air supply cylinder 6. A support spring 66 is fixedly connected between the wind blocking block 64 and the chute. An airbag block 65 is adhesively connected between the wind blocking block 64 and the other end of the chute. The airbag block 65 is communicated with the connecting pipe 55. The model specifications of the airbag block 65 and the airbag cylinder 54 can be selected according to the actual working conditions. The elastic force of the support spring 66 is greater than the air pressure of the airbag block 65 and the airbag cylinder 54 without other external forces. A jacking cylinder 71 is installed on the top of the workbench 1. The telescopic end of the jacking cylinder 71 is fixedly connected with a top frame 7. The top frame 7 is in a block structure and penetrates through the feeding mechanism 2 at the top.

[0038] During the drilling process of the drill bit 51, the drilling mechanism 4 needs to move downward. At this time, the abutting rod 53 abuts against the printed circuit board. When the abutting rod 53 is subjected to the abutting pressure of the printed circuit board, through the compression of the airbag cylinder 54, the gas in the airbag cylinder 54 is transmitted to the airbag block 65 through the connecting pipe 55. The airbag block 65 expands and squeezes the wind blocking block 64 to move, so that the end of the wind blocking block 64 moves away from the cross-section of the barrel of the air supply cylinder 6, realizing the through hole of the barrel of the air supply cylinder 6. Facilitate the drill bit 51 to provide a cooling air flow to the drill bit 51 through the air supply cylinder 6 during the drilling process, help reduce the temperature of the drill bit, and can blow away the debris generated by drilling to prevent the debris from accumulating and affecting the drilling accuracy or damaging the circuit board.

[0039] Figure 7 This is a schematic structural diagram of the outside of the workbench of the present invention. A positioning component for easy flipping is provided on the workbench 1. The positioning component includes a transmission screw 8. One end of the transmission screw 8 is equipped with a first motor. A through groove is provided on one side of the workbench 1. The transmission screw 8 is rotatably connected to the workbench 1 through a bearing in the through groove. A slider 81 is sleeved on the transmission screw 8. The slider 81 is internally and externally threaded with the transmission screw 8. The rotation movement of the transmission screw 8 at the end of the first motor is converted into the linear movement of the slider 81 through the internal and external thread connection, allowing the slider 81 to move up and down along the through groove on the side of the workbench 1, driving the slider 81 to move up and down, facilitating making space for the printed circuit board to be processed to flip.

[0040] Figure 8 This is a schematic structural diagram of the positioning component 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. An activity groove is provided on the support frame 84. A transmission double screw 85 is rotatably connected to the support frame 84 through a bearing in the activity groove.

[0041] One end of the driving double screw 85 is installed with a third motor. The driving double screw 85 has a double-screw structure with opposite thread helix directions. Both sides of the driving double screw 85 are sleeved with moving strip blocks 86. The moving strip blocks 86 are connected with the driving double screw 85 by internal and external threads. The driving double screw 85 is driven by the third motor to rotate, thereby driving the moving strip blocks 86 on both sides to approach each other, and then clamping the printed circuit board.

[0042] Figure 10 It is a cross-sectional view between the L-shaped seat and the fixed seat of the present invention. Figure 11 For the present invention Figure 10 It is a schematic enlarged structure diagram at B in the present invention. The end of the moving strip block 86 is connected with a fixed seat 87. A first magnetic attraction block 831 is embedded in the bottom side of the end of the L-shaped seat 83. A receiving groove is opened on the fixed seat 87. A connecting rod 9 is slidably inserted into the receiving groove. A top block 91 is fixedly connected to the end of the connecting rod 9. A first airbag 92 is bonded between the connecting rod 9 and the receiving groove. A connecting pipe 93 is connected to the end of the first airbag 92. The length of the connecting pipe 93 can be selected according to the actual working conditions.

[0043] A receiving groove is opened on the L-shaped seat 83. A gear block 95 is slidably inserted into the receiving groove. A second airbag 94 is bonded between the gear block 95 and the receiving groove. The second airbag 94 is communicated with the connecting pipe 93. A return spring 96 is fixedly connected between the gear block 95 and the receiving groove. The bottom of the L-shaped seat 83 is rotatably connected with a rotating shaft 882. An abutting block 88 is fixedly sleeved on the rotating shaft 882. A gear 883 is sleeved on the rotating shaft 882. The gear 883 meshes with the gear block 95. The model specifications of the first airbag 92 and the second airbag 94 can be selected according to the actual working conditions. The elastic force of the return spring 96 is greater than the air pressure of the first airbag 92 and the second airbag 94 without other external forces.

[0044] When the moving strip blocks 86 on both sides approach each other, at this time, the fixed seats 87 on both sides also approach each other. The top block 91 is abutted by the printed circuit board, so that the top block 91 approaches the receiving groove. 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 95 to move. 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.

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

[0046] During actual use, the roller conveyor in the feeding mechanism 2 starts to convey the display built-in printed circuit board to be processed. The sensing transmitter 11 emits a signal, and the sensing receiver 12 receives the signal. The control module receives the signals from the sensing transmitter 11 and the sensing receiver 12, and controls the stop of the roller conveyor according to the preset program and algorithm. The lifting cylinder 71 starts, and its telescopic end jacks up the built-in printed circuit board, so that the edge of the built-in printed circuit board abuts against the L-shaped seats 83 on both sides. The rotation movement of the end of the first motor drives the screw rod 8 to be converted into the linear movement of the slider 81, which is realized through the internal and external thread connection, allowing the slider 81 to move up and down along the through groove on the side of the workbench 1, driving the slider 81 to move up and down, facilitating making space for the printed circuit board to be processed to be flipped. The transmission double screw rod 85 rotates driven by the third motor, and then drives the moving strip blocks 86 on both sides to approach each other, thereby clamping the printed circuit board. When the moving strip blocks 86 on both sides approach each other, at this time, the fixed seats 87 on both sides also approach each other. The top block 91 is abutted by the printed circuit board, causing the top block 91 to approach the accommodating groove, compressing the first airbag 92 by the connecting rod 9. 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 95 to move. The gear block 95 drives the gear 883 and the rotating shaft 882 to rotate, causing the abutting block 88 to rotate and abut against the surface of the printed circuit board. The first magnetic block 831 and the second magnetic block 881 interact to assist in fixing and positioning the printed circuit board, further improving the stability during processing. 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 flipping the printed circuit board to the other side. The drill bit 51 finds the corresponding position driven by the moving mechanism 41. The cylinder 43 provides power to make the drill bit 51 move up and down along the vertical direction for subsequent drilling operations. When the drilling mechanism 4 moves downward, at this time, the abutting rod 53 abuts against the printed circuit board. When the abutting rod 53 receives the abutting pressure from the printed circuit board, through the compression of the airbag cylinder 54, the gas in the airbag cylinder 54 is transmitted to the airbag block 65 through the communication pipe 55. The airbag block 65 expands and squeezes the air-blocking block 64 to move, causing the end of the air-blocking block 64 to move away from the cross-section of the barrel of the air supply cylinder 6, realizing the through port of the barrel of the air supply cylinder 6, facilitating the air supply cylinder 6 to provide a cooling air flow to the drill bit 51 during the drilling process of the drill bit 51, helping to reduce the temperature of the drill bit, and blowing away the debris generated by drilling to prevent the debris from accumulating and affecting the drilling accuracy or damaging the circuit board.

[0047] By adopting the automated control technology, the present invention realizes the optimization of the production process. During the drilling process, by controlling the stop of the roller conveyor, the telescoping of the lifting cylinder 71, the up and down movement of the slider 81, and the rotation of the driving double screw 85, the flipping and positioning of the printed circuit board are realized, simplifying the production steps, reducing the production cost, and using multiple cylinders and magnetic attraction blocks for fixing and positioning to ensure the stability of the printed circuit board during the processing, and avoiding the processing errors caused by vibration or displacement.

[0048] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. 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). The feeding mechanism (2) includes a roller conveyor. Brackets (3) are arranged on both sides of the workbench (1). A drilling mechanism (4) is arranged on the inner side of the top of the brackets (3). A control module (13) is arranged on the workbench (1). The drilling mechanism (4) includes a moving frame and a moving mechanism (41). A moving mechanism (41) facilitating movement is arranged at the bottom of the moving frame. A support base (42) is arranged at the bottom of the moving mechanism (41). A cylinder (43) is arranged on the support base (42). The telescopic end of the cylinder (43) penetrates through the support base (42) and is provided with a mounting round seat (5). A drill bit (51) is arranged at the bottom of the mounting round seat (5). An air supply cylinder (6) is arranged on one side of the mounting round seat (5) through a connecting rod. A microporous plate (63) is arranged at the other end of the air supply cylinder (6). A blowing component facilitating opening and closing is arranged between the air supply cylinder (6) and the mounting round seat (5). The blowing component includes a side seat (62). A side seat (62) is arranged on one side of the air supply cylinder (6). A round groove is formed at the bottom of the mounting round seat (5). A cover plate (52) is arranged at the opening of the round groove. A butting rod (53) is slidably inserted on the cover plate (52). An air bag cylinder (54) is arranged between the butting rod (53) and the round groove. One end of the air bag cylinder (54) is provided with a connecting pipe (55). A chute is formed inside the side seat (62). A wind blocking block (64) is slidably inserted on the chute. The end of the wind blocking block (64) is inserted on the cross section of the barrel of the air supply cylinder (6). A support spring (66) is arranged between the wind blocking block (64) and the chute. An air bag block (65) is arranged between the wind blocking block (64) and the other end of the chute. The air bag block (65) is communicated with the connecting pipe (55). A lifting cylinder (71) is arranged on the top of the workbench (1). A top frame (7) is arranged at the telescopic end of the lifting cylinder (71). A positioning component facilitating flipping is arranged on the workbench (1).

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

3. The processing system for an in-display printed circuit board according to claim 1, wherein: The air supply cylinder (6) is arranged obliquely. A micro blowing mechanism (61) is arranged at the end of the air supply cylinder (6). The micro blowing mechanism (61) is communicated with the barrel of the air supply cylinder (6). The top frame (7) is in a block structure and penetrates through the feeding mechanism (2) at the top.

4. The processing system for a printed circuit board built into a display screen according to claim 1, characterized in that: The positioning component includes a transmission screw rod (8). A through groove is formed on one side of the workbench (1). The transmission screw rod (8) is rotatably connected to the workbench (1) through a bearing in the through groove. A slider (81) is sleeved on the transmission screw rod (8). The slider (81) is internally and externally threaded with the transmission screw rod (8). A transmission shaft (82) is arranged on the slider (81). An L-shaped seat (83) is arranged at the end of the transmission shaft (82).

5. The processing system of an in-display printed circuit board according to claim 4, characterized in that: A support frame (84) is arranged between the two L-shaped seats (83). An activity groove is formed in the support frame (84). A transmission double screw rod (85) is arranged in the activity groove of the support frame (84). The transmission double screw rod (85) has a double screw rod structure and the thread helix directions are opposite. Moving strip blocks (86) are arranged on both sides of the transmission double screw rod (85). The moving strip blocks (86) are connected with the transmission double screw rod (85) by internal and external threads. A fixed seat (87) is arranged at the end of the moving strip block (86). A first magnetic attraction block (831) is arranged at the bottom side of the end of the L-shaped seat (83).

6. The processing system for a printed circuit board built into a display screen according to claim 5, characterized in that: A receiving groove is formed in the fixed seat (87). A connecting rod (9) is slidably inserted into the receiving groove. A top block (91) is arranged at the end of the connecting rod (9). A first air bag (92) is arranged between the connecting rod (9) and the receiving groove. A connecting pipe (93) is arranged at the end of the first air bag (92).

7. The processing system of a printed circuit board built into a display screen according to claim 4, characterized in that: A storage groove is formed in the L-shaped seat (83). A gear block (95) is slidably inserted into the storage groove. A second air bag (94) is arranged between the gear block (95) and the storage groove. The second air bag (94) is communicated with the connecting pipe (93). A rotating shaft (882) is rotatably connected to the bottom of the L-shaped seat (83). A reset spring (96) is fixedly connected between the gear block (95) and the storage groove.

8. The processing system of a printed circuit board built into a display screen according to claim 7, wherein: An abutting block (88) is fixedly sleeved on the rotating shaft (882). A gear (883) is arranged on the rotating shaft (882). The gear (883) meshes with the gear block (95). A second magnetic attraction block (881) is arranged on the abutting block (88). The second magnetic attraction block (881) and the first magnetic attraction block (831) attract each other.

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