PCB (Printed Circuit Board) classified transportation device and conveying equipment thereof

Abstract

The utility model discloses a PCB (Printed Circuit Board) classifying and transporting device and conveying equipment thereof, comprising a classifying and transporting module, the classifying and transporting module is used for moving a first PCB and a second PCB which are classified, and the classifying and transporting module is provided with a first table body, a first transporting channel and a second transporting channel; the first transportation channel and the second transportation channel are both arranged at the upper part of the first table body, and the first transportation channel is used for moving a first PCB to the second transportation channel; the PCB recovery module is provided with a first PCB transfer unit, an inlet of the PCB transfer unit is connected with the classified transportation module, and the first PCB transfer unit is used for storing and transferring second PCBs; and the PCB detection module is connected with the outlet of the first PCB transfer unit, and the PCB detection module is used for detecting and repairing the second PCB. According to the technical scheme of the embodiment, good products and defective products of the PCBs can be effectively classified.

Description

Technical Field

[0001] This utility model relates to the field of sorting equipment technology, and in particular to a PCB board sorting and transporting device and its conveying equipment. Background Technology

[0002] Currently, PCB sorting is mostly done using traditional pneumatic grippers or mechanical clamps. However, these sorting devices may mistakenly place good PCBs into the defective section or miss good PCBs. This results in the sorting device being unable to effectively distinguish between good and defective PCBs, requiring manual secondary sorting. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a PCB board sorting and transporting device and its conveying equipment, capable of effectively sorting good and defective PCB boards.

[0004] On one hand, the PCB board sorting and transporting device according to an embodiment of the present invention includes:

[0005] A sorting and transport module is used to move the sorted first PCB board and second PCB board. The sorting and transport module is provided with a first platform, a first transport channel and a second transport channel. The first transport channel and the second transport channel are both located on the upper part of the first platform. The first transport channel is used to move the first PCB board to the second transport channel. The first PCB board is a qualified PCB board and the second PCB board is an unqualified PCB board.

[0006] The PCB board recycling module is equipped with a first PCB board transfer unit. The entrance of the PCB board transfer unit is connected to the sorting and transportation module. The first PCB board transfer unit is used to store and transfer the second PCB board.

[0007] A PCB board inspection module is connected to the outlet of the first PCB board transfer unit, and the PCB board inspection module is used to inspect and repair the second PCB board.

[0008] According to some embodiments of the present invention, the first transport channel includes a first transport unit and a second transport unit. The first transport unit is provided with a plurality of first rotating shafts, both sides of which are connected to the first platform. A plurality of rollers are evenly provided on the outer surface of each first rotating shaft. The second transport unit is provided with a first tray and a lifting device. The first tray is disposed on the upper part of the lifting device. The first tray is used to place the first PCB board or the second PCB board. When the second PCB board is placed in the first transport channel, the plurality of first rotating shafts rotate to send the second PCB board into the PCB board recycling module.

[0009] According to some embodiments of this utility model, the lifting device includes a cylinder, multiple stroke rods, and a limit sensor. The cylinder is disposed at the lower part of the multiple stroke rods, and the upper part of the stroke rods is connected to the first tray. The multiple stroke rods move up and down vertically along the gap between the multiple first rotating shafts. The limit sensor is disposed on the side of the first platform away from the PCB board recycling module. When the first PCB board is placed in the first transport channel, the cylinder pushes the multiple stroke rods upward and drives the first PCB board to move to the limit sensor. When the first PCB board moves to the limit sensor, the multiple stroke rods descend, and the multiple first rotating shafts rotate to send the first PCB board into the second transport unit.

[0010] According to some embodiments of the present invention, the first PCB board transfer unit includes a second platform, a first fixed shaft, a second fixed shaft, a second rotating shaft, a plurality of first turntables, a plurality of first fixed brackets, and a plurality of second fixed brackets. The first fixed shaft is disposed on one side of the second platform, and the second fixed shaft is disposed on the other side of the second platform. The second rotating shaft passes through the middle of the plurality of first turntables and is disposed in the middle of the second platform. One end of the plurality of first fixed brackets is connected to the first turntable, and the other end of the first fixed bracket is connected to the first fixed shaft. One end of the second fixed bracket is connected to the first turntable, and the other end of the second fixed bracket is connected to the second fixed shaft. A plurality of limiting frames are evenly arranged on the outer circumference of the second rotating shaft, and the limiting frames are used to limit the second PCB board.

[0011] According to some embodiments of the present invention, the first fixed bracket and the second fixed bracket are horizontally aligned along the center of the first turntable, a plurality of adjacent first fixed brackets form a first support mechanism, a plurality of adjacent second fixed brackets form a second support mechanism, a first interval is formed between each adjacent first fixed bracket, and a second interval is formed between each adjacent second fixed bracket. The first support mechanism and the second support mechanism are used to place the second PCB board, and the first interval and the second interval are used to form the rotation channel of the limiting frame.

[0012] According to some embodiments of the present invention, the second transport channel is provided with a plurality of third rotating shafts, which are used to drive the first PCB board to move.

[0013] According to some embodiments of the present invention, the PCB board detection module includes a third body and a detection device. The detection device is disposed on the upper part of the third body and is used to perform fault detection on the second PCB board.

[0014] According to some embodiments of the present invention, the third body is provided with a plurality of grooves, and each groove is provided with a second PCB board transfer unit. Each second PCB board transfer unit is provided with a first fixing member and a plurality of movable rollers. One side of the first fixing member is connected to the groove, and the other side of the first fixing member is connected to the plurality of movable rollers.

[0015] The PCB board sorting and transporting device and its conveying equipment according to the embodiments of this utility model have at least the following beneficial effects:

[0016] The system includes a classification and transportation module for moving classified first and second PCB boards. This module comprises a first platform, a first transportation channel, and a second transportation channel, both located on the upper part of the first platform. The first transportation channel moves the first PCB board to the second transportation channel. The first PCB board is a qualified PCB board, and the second PCB board is a defective PCB board. A PCB board recycling module includes a first PCB board transfer unit connected to the classification and transportation module at its entrance. This first transfer unit stores and transfers the second PCB board. A PCB board inspection module is connected to the exit of the first transfer unit and is used to inspect and repair the second PCB board. According to this embodiment, the system can effectively classify good and defective PCB boards.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the overall structure of the PCB board sorting and transportation device according to an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the first transportation channel according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the second body in an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the first PCB board transfer unit according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the stroke rod and limit sensor according to an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the third body structure of an embodiment of the present utility model. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Firstly, referring to Figures 1 to 6 This utility model provides a PCB board sorting and transportation device, including a sorting and transportation module 100, which is used to move sorted first and second PCB boards. The sorting and transportation module 100 is provided with a first platform 110, a first transportation channel 120 and a second transportation channel 130, both of which are located on the upper part of the first platform 110. The first transportation channel 120 is used to move the first PCB board to the second transportation channel 130, wherein the first PCB board is a qualified PCB board and the second PCB board is an unqualified PCB board. A PCB board recycling module 200 is provided with a first PCB board transfer unit 210, the entrance of which is connected to the sorting and transportation module 100. The first PCB board transfer unit 210 is used to store and transfer the second PCB board. A PCB board detection module 300 is connected to the exit of the first PCB board transfer unit 210. The PCB board detection module 300 is used to detect and repair the second PCB board.

[0029] It should be noted that the first transport channel 120 and the second transport channel 130 of the classification and transport module 100 can quickly separate qualified first PCB boards and unqualified second PCB boards for transport, avoiding mutual interference between the two types of PCB boards during transportation. Qualified PCB boards are quickly transferred to the second transport channel 130 through the first transport channel 120, while unqualified PCB boards are promptly diverted, making the flow of PCB boards on the production line smoother, significantly reducing the transportation downtime caused by classification confusion, and significantly improving the overall production and transportation efficiency. The first PCB board transfer unit 210 of the PCB board recycling module is connected to the classification and transport module 100, and can promptly receive unqualified second PCB boards and properly store and transfer them. This process achieves precise management of unqualified PCB boards, avoids random stacking of unqualified products, and facilitates subsequent centralized processing and resource recycling of second PCB boards. The PCB board detection module 300 is connected to the outlet of the first PCB board transfer unit 210, and can detect and repair the recycled unqualified second PCB boards. Since some secondary PCBs may only have minor faults or defects, precise detection and repair operations by the testing module can bring some defective PCBs back to acceptable standards, enabling their reuse. This not only reduces the costs incurred from scrapping defective PCBs but also lowers the raw material and labor costs required to produce new PCBs, effectively reducing the company's overall production costs.

[0030] The first transport channel 120 includes a first transport unit 140 and a second transport unit 150. The first transport unit 140 is provided with a plurality of first rotating shafts 141. Both sides of the first rotating shafts 141 are connected to the first platform 110. A plurality of rollers 142 are evenly provided on the outer surface of each first rotating shaft 141. The second transport unit 150 is provided with a first tray 151 and a lifting device 152. The first tray 151 is located on the upper part of the lifting device 152. The first tray 151 is used to place a first PCB board or a second PCB board. When the second PCB board is placed in the first transport channel 120, the plurality of first rotating shafts 141 rotate to send the second PCB board into the PCB board recycling module 200.

[0031] It should be noted that the first transport unit 140, through the combination of multiple first rotating shafts 141 and rollers 142, forms a continuously rolling transport surface, suitable for flat transport of PCB boards, ensuring their smooth and rapid passage; the second transport unit 150, through the combination of lifting device 152 and first tray 151, can flexibly adjust the tray height to adapt to the loading and unloading requirements of PCB boards of different specifications (such as the height docking with subsequent inspection and recycling modules), improving the device's compatibility with diverse products. The first transport unit 140 (roller 142 transport) and the second transport unit 150 (tray lifting) can be controlled independently: when transporting qualified PCB boards, the tray remains low, and the rollers 142 directly transport the first PCB board to the second transport channel 130; when transporting unqualified PCB boards, the tray rises to receive the PCB board, and with the help of the lifting device 152, it is accurately sent into the recycling module, avoiding mixing with qualified boards. Multiple rollers 142 are evenly arranged on the outer surface of each first rotating shaft 141, forming dense support points. This ensures that the PCB board is subjected to uniform force during transmission, reducing the risk of scratches and deformation caused by single-point contact. Simultaneously, the rolling friction of the rollers 142 is far less than the sliding friction, reducing transmission resistance and ensuring smooth movement of the PCB board, avoiding transmission delays or product damage caused by jamming. When multiple first rotating shafts 141 rotate synchronously, a continuous high-speed conveyor belt can be formed, significantly increasing the PCB board conveying capacity per unit time.

[0032] The lifting device 152 includes a cylinder, multiple stroke rods 1521, and a limit sensor 1522. The cylinder is located at the lower part of the multiple stroke rods 1521, and the upper part of the stroke rods 1521 is connected to the first tray 151. The multiple stroke rods 1521 move up and down vertically in the gap between the multiple first rotating shafts 141. The limit sensor 1522 is located on the side of the first platform 110 away from the PCB board recycling module 200. When the first PCB board is placed in the first transport channel 120, the cylinder pushes the multiple stroke rods 1521 to rise and drives the first PCB board to move to the limit sensor 1522. When the first PCB board moves to the limit sensor 1522, the multiple stroke rods 1521 descend, and the multiple first rotating shafts 141 rotate to send the first PCB board into the second transport unit 150.

[0033] It should be noted that the cylinder, as a power source, can stably and precisely push multiple stroke rods 1521 upwards, thereby moving the first tray 151 and the first PCB board placed on it to a designated height. The stroke rods 1521 move vertically along the gap between the first rotating shafts 141, fixing the upward path of the first PCB board and avoiding collisions or misalignments caused by deviation. This ensures that the first PCB board can accurately move to the position of the limit sensor 1522, providing a precise starting point for subsequent transportation. The limit sensor 1522 is located on the side of the first platform 110 away from the PCB board recycling module 200. When the first PCB board is driven upwards by the cylinder to the limit sensor 1522, the limit sensor 1522 can quickly detect the arrival of the first PCB board and promptly provide a feedback signal. Based on this signal, the stroke rods 1521 descend, allowing the first PCB board to accurately fall onto the rollers 142 of the first rotating shaft 141, preparing it for entry into the second transportation unit 150. The entire process achieves automated and precise positioning, reducing manual calibration and improving transportation accuracy.

[0034] The cylinder pushes the stroke rod 1521 upward, lifting the first PCB board and moving it to the limit sensor 1522. Once in position, the stroke rod 1521 quickly descends, causing the first PCB board to rapidly contact the roller 142 of the first rotating shaft 141. At this time, multiple first rotating shafts 141 rotate, driving the roller 142 to rotate, thus sending the first PCB board into the second transport unit 150. This series of actions is closely coordinated, reducing the dwell time of the first PCB board in the first transport channel 120, realizing an efficient switch from pallet carrying to roller 142 transfer, accelerating the turnover speed of the first PCB board in the transport device, and thus improving overall production efficiency.

[0035] Furthermore, multiple travel levers 1521 jointly support the first tray 151 and the first / second PCB board, distributing the weight of the first or second PCB board and ensuring uniform force distribution during lifting and lowering, thus preventing PCB board deformation or damage due to uneven force distribution. Simultaneously, the lifting mechanism of the travel levers 1521 within the gap of the first pivot 141 provides excellent guidance, further enhancing the stability of the lifting process.

[0036] The first PCB board transfer unit 210 includes a second platform 211, a first fixed shaft 212, a second fixed shaft 213, a second rotating shaft 214, multiple first turntables 215, multiple first fixed supports 216, and multiple second fixed supports 217. The first fixed shaft 212 is located on one side of the second platform 211, and the second fixed shaft 213 is located on the other side of the second platform 211. The second rotating shaft 214 passes through the middle of the multiple first turntables 215 and is located in the middle of the second platform 211. One end of the multiple first fixed supports 216 is connected to the first turntable 215, and the other end of the first fixed support 216 is connected to the first fixed shaft 212. One end of the second fixed support 217 is connected to the first turntable 215, and the other end of the second fixed support 217 is connected to the second fixed shaft 213. Multiple limiting frames 218 are evenly arranged on the outer circumference of the second rotating shaft 214. The limiting frames 218 are used to limit the second PCB board.

[0037] It should be noted that the limiting bracket 218 fixes the PCB board at a designated position on the second rotating shaft 214 through physical constraints, preventing it from shifting laterally or longitudinally due to inertia, vibration, or other factors during the rotation of the turntable or transportation. This reduces surface damage to the PCB board caused by collisions (such as pad detachment or component displacement). Since the limiting brackets 218 are evenly distributed on the outer circumference of the second rotating shaft 214, multiple limiting brackets 218 can evenly bear the weight of the second PCB board, making the force balanced when the turntable rotates, reducing local wear of mechanical parts, and extending the service life of the device.

[0038] Specifically, when the second rotating shaft 214 drives the turntable to rotate, the gaps between the multiple limiting frames 218 under the action of gravity will hold the second PCB board in place to prevent the second PCB board from falling off during the transfer process.

[0039] Furthermore, the spacing or structure of the limit frame 218 can be flexibly adjusted to accommodate PCBs of different sizes (such as small boards, large boards, or irregularly shaped boards), reducing the frequency of machine downtime for adjustments due to changes in product specifications, improving the versatility of the production line, ensuring efficient transportation under specific specifications, and enabling rapid switching of production of different product models by modularly replacing the limit frame 218 components.

[0040] In addition, reliable limit function can prevent the second PCB board from being tilted or stacked during transportation, reducing the frequency of manual inspection and adjustment.

[0041] The first fixed bracket 216 and the second fixed bracket 217 are horizontally aligned along the center of the first turntable 215. Multiple adjacent first fixed brackets 216 form a first support mechanism 220, and multiple adjacent second fixed brackets 217 form a second support mechanism. A first interval 240 is formed between each adjacent first fixed bracket 216, and a second interval 250 is formed between each adjacent second fixed bracket 217. The first support mechanism 220 and the second support mechanism are used to place the second PCB board, and the first interval 240 and the second interval 250 are used to form a rotation channel for the limiting frame 218.

[0042] It should be noted that the first fixed bracket 216 and the second fixed bracket 217 are horizontally aligned along the center of the first turntable 215, so that the gravity of the second PCB board on the turntable is evenly distributed on both sides of the fixed shaft, avoiding turntable tilting or shaft eccentric wear caused by unilateral force, and improving the long-term reliability of the mechanical structure. The first gap 240 between the first fixed brackets 216 and the second gap 250 between the second fixed brackets 217 together provide the limiting frame 218 on the second shaft 214 with a rotation space perpendicular to the turntable plane. For example, when the turntable rotates, the limiting frame 218 rotates with the second shaft 214, and its protruding part can extend into the support mechanism through the gap area without physical collision with the fixed bracket, ensuring smooth mechanical movement. The limiting frame 218 restricts the vertical displacement (such as tilting) or horizontal displacement (such as lateral sliding) of the PCB board from above or the side, forming a three-dimensional constraint. This ensures that the second PCB board always maintains a horizontal posture during transportation, avoiding component pin deformation or pad damage caused by shaking.

[0043] Furthermore, the support mechanism and the limiting frame 218 are arranged in layers in the vertical direction (turntable plane and axis of rotation). The support mechanism occupies the horizontal space on the turntable surface, and the limiting frame 218 uses the vertical space (interval channel) to perform rotation. This avoids the limitation structure occupying the turntable area in the traditional planar layout, and allows for more PCB board stations to be arranged with the same turntable size, thereby improving the transfer rate of the second PCB board.

[0044] The second transport channel 130 is equipped with multiple third rotating shafts 131, which are used to drive the first PCB board to move.

[0045] It should be noted that multiple third rotating shafts 131 are evenly distributed along the transport direction to ensure that the second PCB board receives a uniform and continuous driving force during transport, avoiding uneven spacing or jamming between the front and rear boards caused by single-axis drive. The second PCB board moves through rolling contact of the third rotating shafts 131. Compared with belt drive or chain drive, rolling friction resistance is lower, which can reduce energy consumption and reduce scratches or electrostatic damage to the board surface caused by friction.

[0046] Furthermore, the third rotating shaft 131 can be driven by a servo motor or a variable frequency motor, and its speed can be flexibly adjusted to match the upstream sorting speed or the downstream processing rhythm. When multiple third rotating shafts 131 are symmetrically arranged along both sides of the transport channel, they can form a lateral limit on the second PCB board, suppressing its left and right deviation during the transmission process and ensuring linear movement along a fixed trajectory.

[0047] The PCB board inspection module 300 includes a third body 310 and an inspection device 320. The inspection device 320 is located on the upper part of the third body 310 and is used to perform fault detection on the second PCB board.

[0048] It should be noted that the third stage 310 is typically made of high-strength metal, and its rigid structure effectively isolates external vibrations, preventing optical or circuit misalignment of the detection device 320 (such as cameras and probes) due to stage swaying, thus ensuring the accuracy of the detection data. When the second PCB board moves above the third stage 310, the detection device 320 can complete scanning (such as the flying shot mode of visual inspection) or probe testing without stopping, significantly shortening the detection and repair time of the second PCB board and adapting to high-speed production rhythms.

[0049] The third body 310 is provided with multiple grooves 330, and each groove 330 is provided with a second PCB board transfer unit 340. Each second PCB board transfer unit 340 is provided with a first fixing member 341 and multiple moving rollers 342142. One side of the first fixing member 341 is connected to the groove 330, and the other side of the first fixing member 341 is connected to the multiple moving rollers 342142.

[0050] It should be noted that the shape of the groove 330 precisely matches the outlet of the second PCB board transfer unit 340, forming a physical limiting guide. This ensures that the second PCB board transfer unit 340 can only move linearly along the length direction of the groove 330 (e.g., the X-axis) on the stage, avoiding lateral offset (Y-axis) or flipping, thus guaranteeing the positional accuracy of the second PCB board during inspection. After the transfer unit is embedded in the groove 330, its own weight and the friction between the bottom surface of the groove 330 can suppress displacement caused by minor vibrations. This is especially suitable for high-precision inspection scenarios, avoiding image blurring or poor probe contact caused by minor board movements.

[0051] Roller 142 is typically supported by bearings, and its rolling friction coefficient is much lower than that of sliding friction, which reduces the pushing resistance of the transfer unit in the groove 330 (making manual adjustment easier), while also reducing heat and wear particles generated by friction, thus avoiding contamination of the testing environment.

[0052] Secondly, this utility model embodiment also provides a PCB board conveying device, including:

[0053] The PCB board sorting and transport device as described in the first aspect embodiment.

[0054] In the description of this specification, references to terms such as "one embodiment," "further embodiment," "some specific embodiments," or "some examples," etc., indicate that a specific feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A PCB board sorting and transport device, characterized in that, include: A sorting and transport module is used to move the sorted first PCB board and second PCB board. The sorting and transport module is provided with a first platform, a first transport channel and a second transport channel. The first transport channel and the second transport channel are both located on the upper part of the first platform. The first transport channel is used to move the first PCB board to the second transport channel. The first PCB board is a qualified PCB board and the second PCB board is an unqualified PCB board. The PCB board recycling module is equipped with a first PCB board transfer unit. The entrance of the PCB board transfer unit is connected to the sorting and transportation module. The first PCB board transfer unit is used to store and transfer the second PCB board. A PCB board inspection module is connected to the outlet of the first PCB board transfer unit, and the PCB board inspection module is used to inspect and repair the second PCB board.

2. The PCB board sorting and transport device according to claim 1, characterized in that, The first transport channel includes a first transport unit and a second transport unit. The first transport unit is provided with a plurality of first rotating shafts, both sides of which are connected to the first platform. A plurality of rollers are evenly provided on the outer surface of each first rotating shaft. The second transport unit is provided with a first tray and a lifting device. The first tray is located on the upper part of the lifting device. The first tray is used to place the first PCB board or the second PCB board. When the second PCB board is placed in the first transport channel, the plurality of first rotating shafts rotate to send the second PCB board into the PCB board recycling module.

3. The PCB board sorting and transport device according to claim 2, characterized in that, The lifting device includes a cylinder, multiple stroke rods, and a limit sensor. The cylinder is located at the lower part of the multiple stroke rods, and the upper part of the stroke rods is connected to the first tray. The multiple stroke rods move up and down vertically through the gap between the multiple first rotating shafts. The limit sensor is located on the side of the first platform away from the PCB board recycling module. When the first PCB board is placed in the first transport channel, the cylinder pushes the multiple stroke rods upward and drives the first PCB board to move to the limit sensor. When the first PCB board moves to the limit sensor, the multiple stroke rods descend, and the multiple first rotating shafts rotate to send the first PCB board into the second transport unit.

4. The PCB board sorting and transport device according to claim 1, characterized in that, The first PCB board transfer unit includes a second platform, a first fixed shaft, a second fixed shaft, a second rotating shaft, multiple first turntables, multiple first fixed supports, and multiple second fixed supports. The first fixed shaft is disposed on one side of the second platform, and the second fixed shaft is disposed on the other side of the second platform. The second rotating shaft passes through the middle of the multiple first turntables and is disposed in the middle of the second platform. One end of the multiple first fixed supports is connected to the first turntable, and the other end of the first fixed support is connected to the first fixed shaft. One end of the second fixed support is connected to the first turntable, and the other end of the second fixed support is connected to the second fixed shaft. A plurality of limiting frames are evenly arranged on the outer circumference of the second rotating shaft, and the limiting frames are used to limit the second PCB board.

5. The PCB board sorting and transport device according to claim 4, characterized in that, The first fixed bracket and the second fixed bracket are horizontally aligned along the center of the first turntable. Multiple adjacent first fixed brackets form a first support mechanism, and multiple adjacent second fixed brackets form a second support mechanism. A first interval is formed between each adjacent first fixed bracket, and a second interval is formed between each adjacent second fixed bracket. The first support mechanism and the second support mechanism are used to place the second PCB board, and the first interval and the second interval are used to form the rotation channel of the limiting frame.

6. The PCB board sorting and transport device according to claim 1, characterized in that, The second transport channel is equipped with multiple third rotating shafts, which are used to drive the first PCB board to move.

7. The PCB board sorting and transport device according to claim 1, characterized in that, The PCB board testing module includes a third body and a testing device. The testing device is located on the upper part of the third body and is used to perform fault detection on the second PCB board.

8. The PCB board sorting and transport device according to claim 7, characterized in that, The third platform is provided with multiple grooves, and each groove is provided with a second PCB board transfer unit. Each second PCB board transfer unit is provided with a first fixing member and multiple moving rollers. One side of the first fixing member is connected to the groove, and the other side of the first fixing member is connected to the multiple moving rollers.

9. A PCB board conveying device, characterized in that, include: The PCB board sorting and transport device as described in any one of claims 1 to 8.

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