Multifunctional circuit board assembly connection table

Abstract

The invention relates to the technical field of circuit board surface assembly production lines, and discloses a multifunctional circuit board assembly connection table which comprises an operation module, and the operation module comprises a conveying mechanism, a brush mechanism, a foreign matter sensor, a board feeding sensor, a board discharging sensor, a label scanning device and a control unit. The control unit can control the conveying mechanism to work according to signals of the plate outlet sensor, the plate inlet sensor and the foreign matter sensor. In the process that the conveying mechanism conveys the circuit board, the circuit board firstly passes through the position corresponding to the board feeding sensor, then passes through the positions corresponding to the brush mechanism, the foreign matter sensor and the label scanning device, and finally passes through the position corresponding to the foreign matter sensor, the brush mechanism cleans the foreign matter on the circuit board, and the circuit board passes through the label scanning device. The foreign matter sensor monitors foreign matters on the circuit board, and the label scanning device can scan labels on the circuit board. Compared with the prior art, functional diversification can be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board surface assembly production lines, and in particular to a multifunctional circuit board assembly docking station. Background Art

[0002] Printed circuit boards (PCBs) are also known as printed circuit boards (PCBs). Surface mount assembly lines are used to mount or assemble components onto the surface of printed circuit boards. In PCB assembly lines, docking stations are typically used to transfer PCBs between adjacent processing equipment.

[0003] Common docking stations include automatic conveyors, which automatically transport circuit boards from one workstation to the next. However, current docking stations primarily function solely to transport circuit boards, limiting their functionality and hindering production line efficiency and cost savings.

[0004] In summary, how to provide a multifunctional docking station is an urgent problem to be solved in the current field of circuit board surface assembly production line technology. Summary of the Invention

[0005] The present invention provides a multifunctional circuit board assembly docking station to solve the technical problem that the existing docking stations have a single function.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: A multifunctional circuit board assembly docking station includes a machine frame and an operating module arranged on the machine frame, the operating module includes a conveying mechanism, a brush mechanism, a foreign object sensor, a board inlet sensor, a board outlet sensor, a label scanning device and a control unit: the conveying mechanism is used to convey the circuit board; the brush mechanism is arranged above the conveying mechanism, and is used to clean foreign objects on the surface of the circuit board during the process of the conveying mechanism conveying the circuit board; the foreign object sensor is used to sense foreign objects on the surface of the circuit board after the brush mechanism has cleaned the foreign objects on the surface of the circuit board; the board inlet sensor is positioned corresponding to the position of the board inlet end of the conveying mechanism, and is used to sense the circuit board on the board inlet end of the conveying mechanism and generate a corresponding board inlet signal; the board outlet sensor is positioned corresponding to the position of the board outlet end of the conveying mechanism, and is used to sense the circuit board at the board outlet end of the conveying mechanism and generate a corresponding board outlet signal The control unit controls the conveying mechanism to convey the circuit board and controls the label scanning device to scan the label of the circuit board when receiving the board-in signal fed back by the foreign object sensor; the control unit controls the conveying mechanism to convey the circuit board and controls the label scanning device to scan the label of the circuit board when receiving the board-out signal fed back by the foreign object sensor; the control unit controls the conveying mechanism to stop conveying the circuit board after receiving the signal of the presence of foreign objects fed back by the foreign object sensor; the control unit controls the conveying mechanism to stop conveying the circuit board when receiving the board-out signal fed back by the board-out sensor; the control unit controls the conveying mechanism to stop conveying the circuit board when receiving the board-out signal fed back by the board-out sensor; wherein the board-in sensor forms a first orthographic projection on the transmission surface of the conveying mechanism, the board-out sensor forms a second orthographic projection on the transmission surface of the conveying mechanism, and the orthographic projections formed by the brush mechanism, the foreign object sensor and the label scanning device on the transmission surface of the conveying mechanism are located between the first orthographic projection and the second orthographic projection.

[0007] In an optional embodiment, the brush mechanism includes a lifting drive device provided on the machine frame and a brush component at the output end of the lifting drive device, and the brush component is used to clean foreign matter on the upper surface of the circuit board; in the conveying direction of the conveying mechanism, the brush component is closer to the side of the conveying mechanism where the board enters than the foreign matter sensor.

[0008] In an optional embodiment, the board inlet sensor is located below the board inlet end of the conveying mechanism and is spaced from the board inlet end of the conveying mechanism; the board outlet sensor is located below the board outlet end of the conveying mechanism and is spaced from the board outlet end of the conveying mechanism.

[0009] In an optional embodiment, the machine frame includes a first connecting seat and a second connecting seat located inside the machine frame, and the board feed sensor can be slid back and forth in a straight line on the first connecting seat, and the moving trajectory of the board feed sensor is parallel to the transmission surface of the conveying mechanism and perpendicular to the conveying direction of the conveying mechanism; the board output sensor can be slid back and forth in a straight line on the second connecting seat, and the moving trajectory of the board output sensor is parallel to the moving trajectory of the board feed sensor.

[0010] In an optional embodiment, the machine frame includes a shell, which is provided with a symmetrically arranged board input window and board output window; the conveying mechanism is arranged in the shell, the board input end of the conveying mechanism extends from the board input window to the outside of the shell, and the board output end of the conveying mechanism extends from the board output window to the outside of the shell; the board input sensor is located below the board input window; and the board output sensor is located below the board output window.

[0011] In an optional embodiment, the machine frame includes two mounting seats; the shell is provided with an upper cavity and a lower cavity arranged in the upper and lower directions; the plate inlet window and the plate outlet window are opened in the upper cavity; the bottom wall of the upper cavity is provided with a bottom window passing through the lower cavity, and the bottom window is provided with a removable shielding plate, and the bottom window is closed by the shielding plate; the two mounting seats are respectively fixed to the inner wall of the upper cavity and the inner wall of the lower cavity; the conveying mechanism is provided in the upper cavity; the label scanning device is detachably mounted on one of the two mounting seats; when the label scanning device is installed on the mounting seat in the upper cavity, the label scanning device is located above the conveying mechanism; when the label scanning device is installed on the mounting seat in the lower cavity, the label scanning device is located below the conveying mechanism and facing the bottom window.

[0012] In an optional embodiment, the mounting seat is provided with a slide groove; the label scanning device includes a scanning body, a connecting frame and a slider, the slider can be slidably connected to the slide groove for linear reciprocating movement, the movement trajectory of the slider is parallel to the transmission surface of the conveying mechanism and perpendicular to the conveying direction of the conveying mechanism; the scanning body is arranged on the slider through the connecting frame and can slide together with the slider.

[0013] In an optional embodiment, the conveying mechanism includes two support plates symmetrically arranged on the machine frame, two conveyor belts respectively arranged on the two support plates, and a driving component for simultaneously driving the two conveyor belts; the two conveyor belts are configured to support the two sides of the circuit board respectively; the orthographic projection formed by the brush mechanism, the foreign object sensor and the label scanning device on the conveying surface of the conveying mechanism is located between the two conveyor belts; the first orthographic projection and the second orthographic projection are located between the two conveyor belts.

[0014] The transmission belt comprises a pulley group provided on a supporting plate and a linkage belt sleeved on the pulley group; the linkage belt forms a support portion extending along the conveying direction of the conveying mechanism under the limit of the pulley group, and the circuit board is supported by the support portion; the driving assembly simultaneously drives the pulley groups of the two transmission belts through a linkage shaft, so that the pulley group drives the linkage belt to convey the circuit board; the inner side wall of the supporting plate is convexly provided with an abutment platform, the abutment platform is extended along the conveying direction of the conveying mechanism; the abutment platform is located below the supporting portion and abuts the bottom surface of the supporting portion; the pulley group comprises a driving wheel, two driven wheels and a plurality of tensioning wheels; the two driven wheels are respectively located at the two ends of the abutment platform, and each tensioning wheel is located below the driven wheel; the two ends of the linkage shaft are respectively rotatably connected to the two supporting plates; the driving wheels of the two pulley groups are sleeved on the linkage shaft; the driving assembly comprises a driving motor and a shaft coupling, the driving motor is fixedly connected to the outer wall of a supporting plate, the rotating shaft of the driving motor is coaxially connected with the linkage shaft through the shaft coupling, and the linkage shaft is driven to rotate by the driving motor.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The infeed sensor of the present invention forms a first orthographic projection on the conveyor mechanism's transmission surface, while the outfeed sensor forms a second orthographic projection. The orthographic projections formed by the brush mechanism, foreign object sensor, and label scanning device on the conveyor mechanism's transmission surface are located between the first and second orthographic projections. Therefore, during transportation, a circuit board first passes through the position corresponding to the infeed sensor, then the positions corresponding to the brush mechanism, foreign object sensor, and label scanning device, and finally the position corresponding to the foreign object sensor.

[0016] When the circuit board is transported to the board feed end of the conveying mechanism by the equipment of the previous workstation, the circuit board is first sensed by the board feed sensor, and the board feed sensor generates a board feed signal. When the control unit receives the board feed signal feedback from the board feed sensor, it controls the conveying mechanism to start conveying the circuit board and controls the label scanning device to start scanning the label of the circuit board, thereby realizing the function of scanning the circuit board label during the process of conveying the circuit board.

[0017] When the conveying mechanism is conveying the circuit board, the brush mechanism cleans the foreign matter on the surface of the circuit board, thereby achieving the function of cleaning the circuit board.

[0018] After the brush mechanism cleans the upper surface of the circuit board, the foreign object sensor senses whether there are foreign objects on the upper surface of the circuit board. After receiving the signal of the presence of foreign objects from the foreign object sensor, the control unit can control the conveying mechanism to stop conveying the circuit board so that the foreign objects on the upper surface of the circuit board can be manually cleaned later, thereby realizing the foreign object monitoring function.

[0019] When the circuit board is finally transported to the board outlet end of the conveying mechanism, the control unit receives the board outlet signal fed back by the board outlet sensor, and controls the conveying mechanism to stop conveying the circuit board. When the control unit receives the board outlet instruction issued by the next workstation equipment, it controls the conveying mechanism to send the circuit board to the next workstation equipment. Through the above scheme, the board storage function is realized to coordinate with the working rhythm of the next workstation equipment.

[0020] In summary, the solution of the present invention can achieve the function of conveying circuit boards. In addition, during the process of conveying circuit boards by the conveying mechanism, it can also realize the functions of cleaning circuit boards for foreign objects, monitoring circuit boards for foreign objects, and scanning circuit board labels without stopping the machine. In addition, after cleaning and scanning the circuit boards, it can also realize the function of storing circuit boards. Compared with the existing technology, the solution of the present invention can realize more functions, thereby better adapting to the needs of production lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a circuit board assembly production line docking station according to an embodiment of the present application; Figure 2 This is one of the internal structural diagrams of the circuit board assembly production line docking station in an embodiment of the present application; Figure 3 This is the second schematic diagram of the internal structure of the circuit board assembly production line docking station in an embodiment of the present application; Figure 4 This is the third schematic diagram of the internal structure of the circuit board assembly production line docking station in the embodiment of the present application; Figure 5 Schematic diagram of the positions of the orthographic projections of the board inlet sensor, board outlet sensor, brush mechanism, foreign body sensor, and label scanning device on the transmission surface of the conveying mechanism according to an embodiment of the present application; Figure 6 This is a schematic diagram of the internal structure of the machine stand according to an embodiment of the present application; Figure 7 This is another schematic diagram of the internal structure of the machine stand according to an embodiment of the present application; Figure 8 This is a schematic diagram of the combined structure of the label scanning device and the mounting base according to an embodiment of the present application; Figure 9 This is another schematic diagram of the combined structure of the label scanning device and the mounting base according to an embodiment of the present application; Figure 10 It is a structural diagram of the brush mechanism of an embodiment of the present application; Figure 11 This is a schematic diagram of the combined structure of the board entry sensor and the first connecting socket according to an embodiment of the present application; Figure 12 1 is a partial structural diagram of the first connecting socket of an embodiment of the present application; Figure 13This is a schematic diagram of the connection structure between the conveying mechanism and the machine frame according to an embodiment of the present application; Figure 14 This application Figure 13 Schematic diagram of the connection structure of the conveying mechanism and the machine frame after the circuit board is removed; Figure 15 This application Figure 14 Exploded view of the conveying mechanism and machine frame structure; Figure 16 is a structural diagram of the conveying mechanism of an embodiment of the present application; Figure 17 This is a schematic diagram of the connection structure between the conveyor belt and the support plate in an embodiment of the present application; Figure 18 This application Figure 17 Schematic diagram of the enlarged structure of part A in FIG; Figure 19 This is another schematic diagram of the connection structure between the conveyor belt and the support plate of the present application.

[0022] Note in the figure: 10. Machine frame; 11. First built-in panel; 12. Second built-in panel; 13. Bottom panel; 14. Panel inlet window; 16. Panel outlet window; 20. Conveying mechanism; 21. Conveyor belt; 211. Support plate; 2111. Groove; 2112. Abutment platform; 2121. Driven pulley; 2122. Interlocking belt; 2123. Support portion; 2124. Driving pulley; 2125. Tensioning pulley; 22. Drive assembly; 23. Interlocking shaft; 201. Board inlet; 202. Board outlet. 30. Brush mechanism; 31. Lifting drive device; 32. Brush plate; 321. Hard rod; 322. Brush group; 40. Foreign object sensor; 40a. Light-emitting element; 40b. Light-receiving element; 50. Control unit; 60. Alarm device; 70. Circuit board; 80. Screw shaft; 81. Guide rod; 90. Label scanning device; 901. Scanning body; 902. Connecting frame; 9021. First rod; 9022. Second rod; 9023. Articulated seat; 903. Slider; 9031. Threaded rod; 9032. Limiting member; 91. First connecting seat; 911. First chute; 92. Board inlet sensor; 921. First sensing body; 922. First linear spring; 923. First end cap; 924. First washer; 925. First clamping block; 93. Second connecting seat; 94. Board outlet sensor; 100, mounting base; 101, upper cavity; 1011, shielding plate; 1012, bottom window; 102, lower cavity; 110, slide; 301. First orthographic projection; 302. Second orthographic projection. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0024] In the description of this application, it should be understood that if the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0025] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0027] Please combine Figures 1 to 4 This embodiment provides a multifunctional circuit board assembly docking station, comprising a machine frame 10 and an operating module mounted on the machine frame 10. The operating module is capable of completing, but not limited to, conveying circuit boards 70 between adjacent devices in a production line. The operating module is powered by an external power supply to achieve operation.

[0028] The operating module includes a conveying mechanism 20, a brush mechanism 30, a foreign object sensor 40, a board infeed sensor 92, a board outfeed sensor 94, a label scanning device 90, and a control unit 50. Of course, the operating module also includes other commonly used components, such as an electronic control system and a heat dissipation system, which are commonly used in the prior art. These commonly used components are not described here in detail.

[0029] The conveying mechanism 20 is used to convey the circuit board 70. The circuit board 70 enters from the board input end 201 of the conveying mechanism 20 and moves out from the board output end 202. Therefore, it can be considered that the conveying direction of the conveying mechanism 20 is from the board input end 201 to the board output end 202. The conveying direction appearing below should also be understood in this way.

[0030] The brush mechanism 30 is arranged above the conveying mechanism 20 and is used to clean foreign objects on the upper surface of the circuit board 70 during the process of the conveying mechanism 20 conveying the circuit board 70. These foreign objects may be components, packaging materials, dust impurities and other solid substances that fall on the circuit board 70 and may affect subsequent processing processes.

[0031] The foreign object sensor 40 is used to sense foreign objects on the upper surface of the circuit board 70 after the brush mechanism 30 cleans the foreign objects on the upper surface of the circuit board 70 .

[0032] The board inlet sensor 92 is positioned corresponding to the board inlet end 201 of the conveyor mechanism 20. It senses the circuit board 70 on the board inlet end 201 of the conveyor mechanism 20 and generates a corresponding board inlet signal. The board outlet sensor 94 is positioned corresponding to the board outlet end 202 of the conveyor mechanism 20. It senses the circuit board 70 on the board outlet end 202 of the conveyor mechanism 20 and generates a corresponding board outlet signal.

[0033] The label scanning device 90 is installed on the machine frame 10, and is used to scan the label of the circuit board 70 during the process of the conveying mechanism 20 conveying the circuit board 70, obtain the marking information contained in the label, and transmit the marking information to the control unit 50. The control unit 50 stores the marking information in a storage module, for example, in some databases or independently set storage media, for easy subsequent retrieval.

[0034] The control unit 50 can be a PLC controller, an MCU processor, or other microprocessor capable of performing data analysis and processing functions as well as control functions. The control unit 50 is electrically connected to the brush mechanism 30, the label scanning device 90, the board infeed sensor 92, the board outfeed sensor 94, the conveying mechanism 20, and the foreign object sensor 40 via wires. The control unit 50 can receive signals and instructions sent by the board infeed sensor 92, the board outfeed sensor 94, the foreign object sensor 40, the previous station equipment, and the next station equipment, and based on these signals and instructions, control the conveying mechanism 20, the brush mechanism 30, and the label scanning device 90 to perform corresponding actions.

[0035] Please combine Figure 3 、 Figure 4 and Figure 5 , the board inlet sensor 92 forms a first orthographic projection 301 on the transmission surface of the conveying mechanism 20, the board outlet sensor 94 forms a second orthographic projection 302 on the transmission surface of the conveying mechanism 20, and the orthographic projections formed by the brush mechanism 30, the foreign matter sensor 40 and the label scanning device 90 on the transmission surface of the conveying mechanism 20 are p1, p2 and p3 respectively. And p1, p2 and p3 are located between the first orthographic projection and the second orthographic projection. Among them, the transmission surface of the conveying mechanism 20 should be understood as the plane where the surface part of the conveying mechanism 20 for supporting the circuit board 70 is located during the process of the conveying mechanism 20 conveying the circuit board 70. In this embodiment, the plane is parallel to the lower surface of the circuit board 70. In addition, the relative positions of p1, p2 and p3 are not limited to Figure 5 In other embodiments, the relative positions of the three may vary according to the actual device design, and it is only necessary to ensure that the three are located between the first orthographic projection 301 and the second orthographic projection 302 .

[0036] In the above-mentioned scheme, when conveying the circuit board 70, the conveying mechanism 20 first passes through the position corresponding to the board feeding sensor 92, then passes through the positions corresponding to the brush mechanism 30, the foreign object sensor 40 and the label scanning device 90, and finally passes through the position corresponding to the foreign object sensor 40.

[0037] The working process of the multifunctional circuit board assembly docking station of this embodiment includes: S1. The control unit 50 sends a board delivery instruction to the equipment at the previous workstation through the signal line. The equipment at the previous workstation delivers the circuit board 70 to the board feed end 201 of the conveying mechanism 20 based on the board delivery instruction. The board feed sensor 92 senses the circuit board 70 at the board feed end 201 and generates a board feed signal, and feeds the board feed signal back to the control unit 50.

[0038] S2, after receiving the board feed signal, the control unit 50 controls the conveying mechanism 20 to start, and the conveying mechanism 20 conveys the circuit board 70. At the same time, after receiving the board feed signal, the control unit 50 also controls the label scanning device 90 to start working, and controls the brush mechanism 30 to start working.

[0039] The label scanning device 90 operates as follows: While conveying the circuit board 70, the label scanning device 90 scans the labels on the circuit board 70 and transmits the scan results to the control unit 50. The control unit 50 analyzes the scan results and, if the scan results are normal, converts the scan results into corresponding data and stores them in its internal or external storage medium. If the scan results are abnormal, such as missing label information, incomplete scanned labels, insufficient scanned labels, or missed scans, the control unit 50 controls the conveying mechanism 20 to stop conveying the circuit board 70 so that a human can manually inspect the circuit board 70 for label errors. After the inspection is complete, a human inputs a command to the control unit 50, which controls the conveying mechanism 20 to continue conveying the circuit board 70. This arrangement enables the function of scanning the labels on the circuit board 70. In some optional embodiments, an alarm device 60 may also be provided to issue an alarm. When a label error occurs, the control unit 50 controls the alarm device 60 to issue an alarm to alert personnel. The alarm device 60 is electrically connected to the control unit 50 via a wired connection. The alarm device 60 can be a device such as a buzzer, a signal light, etc. that can send out a warning signal.

[0040] The brush mechanism 30 operates as follows: After the conveying mechanism 20 is activated, the control unit 50 controls the brush mechanism 30 to begin operation. As the conveying mechanism 20 conveys the circuit board 70, the brush mechanism 30 removes foreign matter from the upper surface of the circuit board 70. To prevent incomplete removal of foreign matter by the brush mechanism 30, after the brush mechanism 30 has finished cleaning the upper surface of the circuit board 70, the foreign matter sensor 40 senses the corresponding portion of the upper surface of the circuit board 70 cleaned by the brush mechanism 30 to detect whether foreign matter is still present in that portion. If the foreign matter sensor 40 detects no foreign matter on the upper surface of the circuit board 70, the conveying mechanism 20 continues conveying the circuit board 70 as normal. If the foreign matter sensor 40 detects foreign matter remaining on the upper surface of the circuit board 70, it sends a signal indicating the presence of foreign matter to the control unit 50. Upon receiving the signal from the foreign matter sensor 40, the control unit 50 controls the conveying mechanism 20 to stop conveying the circuit board 70, allowing for manual inspection and cleaning to ensure the complete removal of any remaining foreign matter. After manual intervention to inspect and remove foreign objects, the operator inputs a start command to the control unit 50 via a physical start button, causing the conveyor mechanism 20 to continue conveying the circuit board 70. This solution enables the cleaning of the circuit board 70 and subsequent foreign object detection. In some optional embodiments, upon receiving a signal from the foreign object sensor 40 indicating the presence of a foreign object, the control unit 50 controls the alarm device 60 to issue an alarm to alert personnel.

[0041] S3. When the circuit board 70 is conveyed to the board outlet end 202 of the conveying mechanism 20, the board outlet sensor 94 senses the circuit board 70 and generates a board outlet signal, and feeds back the board outlet signal to the control unit 50. The control unit 50 controls the conveying mechanism 20 to stop conveying the circuit board 70. At this time, the circuit board 70 stays on the conveying mechanism 20 and waits for the control unit 50 to receive the board removal signal sent by the next workstation equipment. The control unit 50 controls the conveying mechanism 20 to convey the circuit board 70 to the next workstation equipment. Through such a solution, the board storage function is realized to coordinate with the working rhythm of the next workstation equipment.

[0042] S4 When there is no circuit board 70 on the conveying mechanism 20, the board inlet sensor 92 and the board outlet sensor 94 cannot sense the circuit board 70, and the control unit 50 cannot receive the board inlet signal and the board outlet signal. The control unit 50 sends a board delivery instruction to the previous workstation equipment so that the previous workstation equipment can deliver the new circuit board 70 to the board inlet end 201 of the conveying mechanism 20 and repeat the above process.

[0043] To sum up, in the process of conveying the circuit board 70 by the conveying mechanism 20, this embodiment can realize the functions of cleaning foreign objects from the circuit board 70, monitoring foreign objects from the circuit board 70, and scanning labels on the circuit board 70 without stopping the machine. In addition, after cleaning and scanning the circuit board 70, the board storage function can also be realized. Compared with the existing technology, the solution of the present invention can, on the one hand, realize more functions, thereby better adapting to the production line requirements. On the other hand, it can complete the process of cleaning and scanning labels without stopping the machine, which is conducive to improving the efficiency of the production line.

[0044] Next, the structure and connection method of the label scanning device 90 of the present application are further described in an example manner.

[0045] Please combine Figure 1 、 Figure 4 、 Figure 6 and Figure 7 In one embodiment, the machine frame 10 includes a shell, and the conveying mechanism 20 is arranged inside the shell. The shell can play a dustproof and protective role, and to a certain extent can prevent external dust and impurities from contaminating the circuit board 70, and prevent external foreign objects from hitting the circuit board 70. The shell is provided with a symmetrically arranged board inlet window 14 and a board outlet window 16. The board inlet end 201 of the conveying mechanism 20 extends from the board inlet window 14 to the outside of the shell, and the board outlet end 202 of the conveying mechanism 20 extends from the board outlet window 16 to the outside of the shell. In this way, the board inlet end 201 and the board outlet end 202 of the conveying mechanism 20 can more conveniently dock with the equipment of the previous station and the equipment of the next station respectively.

[0046] Furthermore, the housing is provided with an upper cavity 101 and a lower cavity 102 arranged in an upward and downward direction. The conveying mechanism 20 is provided in the upper cavity, and the plate inlet window 14 and the plate outlet window 16 are provided on opposite sides of the upper cavity 101. The bottom wall of the upper cavity 101 is provided with a bottom window 1012 that passes through the lower cavity 102. The bottom window 1012 is provided with a removable shielding plate 1011, which seals the bottom window 1012. Specifically, the shielding plate 1011 can be fixed to the upper surface of the bottom window 1012 with screws. When the shielding plate 1011 needs to be removed, the screws can be unscrewed to remove the shielding plate 1011.

[0047] Please continue reading Figure 6 and Figure 7 In some embodiments, the machine stand 10 further includes two mounting bases 100 ( Figure 6 and Figure 7Only one of the mounting seats is marked in the figure). The two mounting seats 100 are fixed to the inner wall of the upper cavity 101 and the inner wall of the lower cavity 102 respectively by fasteners. Preferably, the two mounting seats 100 are located on the same side of the shell. The label scanning device 90 is detachably mounted on one of the two mounting seats 100. When the label scanning device 90 is mounted on the mounting seat 100 in the upper cavity 101 (as shown in FIG. Figure 3 As shown in FIG), the label scanning device 90 is located above the conveying mechanism 20, and the label scanning device 90 scans the labels on the upper surface of the circuit board 70 conveyed by the conveying mechanism 20 from top to bottom. When the label scanning device 90 is installed on the mounting seat 100 in the lower cavity (as shown in FIG), the label scanning device 90 is located above the conveying mechanism 20, and the label scanning device 90 scans the labels on the upper surface of the circuit board 70 conveyed by the conveying mechanism 20 from top to bottom. Figure 6 As shown), the label scanning device 90 is located below the conveying mechanism 20 and is opposite to the bottom window 1012. The label scanning device 90 scans the label on the lower surface of the circuit board 70 of the conveying mechanism 20 from bottom to top through the bottom window 1012.

[0048] Compared to the prior art, the label scanning device 90 of this embodiment is designed to be detachable. A mounting base 100 is provided in each of the upper cavity 101 and the lower cavity 102. The label scanning device 90 is selectively installed in one of the two mounting bases 100 depending on the location of the label on the circuit board 70, thereby adapting to the needs of scanning labels on different circuit boards 70. Under normal circumstances, the label scanning device 90 is installed in the mounting base 100 of the upper cavity 101, and a shielding plate 1011 is used to cover the bottom window 1012 on the bottom wall of the upper cavity 101, so that the upper cavity 101 remains relatively closed, providing a certain degree of dust prevention and the ability to collect dropped objects. In special circumstances, the label scanning device 90 is installed in the mounting base 100 of the lower cavity 102, and the shielding plate 1011 is removed, and the label scanning device 90 scans the labels on the circuit board 70 upward from the bottom window 1012. By adopting the above solution, this embodiment can scan both circuit boards 70 with front labels and circuit boards 70 with back labels, and has better applicability than existing docking stations.

[0049] Please continue reading Figure 2 In one embodiment, the label scanning device 90 is slidably connected to the mounting base 100 for linear reciprocating movement. The trajectory of the label scanning device 90 is parallel to the conveying plane of the conveyor mechanism 20, where the conveying plane of the conveyor mechanism 20 can be understood as the plane on which the circuit board 70 lies or the plane on which the bottom sidewall of the circuit board 70 lies. Furthermore, the trajectory of the label scanning device 90 is perpendicular to the conveying direction of the conveyor mechanism 20. The label scanning device 90 slides relative to the mounting base 100 to adjust its scanning position, allowing it to scan circuit boards 70 of different batches and models, thus providing a wide range of applications.

[0050] Please combine Figure 8 and Figure 9In one embodiment, the mounting base 100 is provided with a slide 110. The label scanning device 90 includes a scanning body 901, a connecting frame 902, and a slider 903. The slider 903 slidably engages with the slide 110. Specifically, the slider 903 includes a raised portion that plugs into the slide 110, so that the slider 903 slides into the slide 110 via the raised portion. In a preferred embodiment, an axial guide rail can be used to replace the mounting base 100 and the slider 903. The axial guide rail is a standard component available on the market and belongs to the prior art. Therefore, the structure of the axial guide rail is not described in detail here.

[0051] The scanning body 901 is used to scan the label on the circuit board 70, obtain the marking information contained in the label, and transmit the marking information to the control unit 50. The control unit 50 stores the marking information in a storage module, such as in some databases or independently set storage media, for subsequent retrieval. The scanning body 901 can adopt the scanning components commonly used in the industry, and the specific structure and working principle of the scanning body 901 are not described here. In some embodiments, the scanning body 901 can scan the label of the circuit board 70 during the movement of the circuit board 70 (it can move slowly or at high speed), without waiting for the circuit board 70 to stop conveying before scanning the label, and the scanning body 901 can scan multiple labels at a time, thereby improving its scanning efficiency. In addition, the scanning body 901 can also achieve wide-angle reading, large field of view reading, and long-distance reading. To improve its applicable scenarios.

[0052] In some embodiments, the connecting frame 902 is configured as an angle-adjustable structure, thereby making the scanning angle of the scanning body 901 adjustable, and the upper cavity and the lower cavity provide sufficient operating space for adjusting the scanning angle of the scanning body 901. Specifically, the connecting frame 902 includes a first rod 9021, a second rod 9022, and a hinge seat 9023. One end of the first rod 9021 is fixed to the slider 903, and the other end of the first rod 9021 is rotatably connected to the second rod 9022 via the hinge seat 9023. The scanning body 901 is fixed to the second rod 9022. By manually pushing the scanning body 901, the scanning body 901 can cause the second rod 9022 to swing relative to the hinge seat 9023, thereby adjusting the position of the scanning body 901 to obtain the optimal scanning angle. In addition, the scanning body 901 can be used to scan labels of circuit boards 70 of different models and batches, thus having a wide range of applicability.

[0053] Furthermore, the hinge base 9023 includes two bases and a pin. The two bases are mounted on the pin and are respectively fixed to the first rod 9021 and the second rod 9022. In the absence of external force, the friction between the bases and the pins maintains the relative positions of the bases and the pins, thereby maintaining the relative positions of the first rod 9021 and the second rod 9022, and thus the position of the scanning body 901. This allows the scanning body 901 to continuously maintain a fixed scanning angle to scan labels on circuit boards 70 of the same batch and model. Of course, in other embodiments, the hinge base 9023 can also utilize commonly available commercially available hinged components, which will not be detailed here.

[0054] In some embodiments, in order for the slider 903 to slide along the mounting base 100 during label scanning, a locking mechanism is provided on the slider 903 to confine the slider 903 to the mounting base 100. When the locking mechanism is in a locked state, the locking mechanism restricts the slider 903 from sliding along the slide groove 110; when the locking mechanism is in an unlocked state, the slider 903 is able to slide along the slide groove 110.

[0055] In one embodiment, the locking mechanism includes a threaded rod 9031 and a stopper 9032. The threaded rod 9031 has a nut at its upper end and a threaded connection at its lower end to a threaded hole in the slider 903. The stopper 9032 is connected to the lower end of the threaded rod 9031 and is partially located within the slot 110 of the mounting base 100. When the nut is manually tightened, the threaded rod 9031 moves up and down relative to the slider 903, thereby driving the stopper 9032 to move up and down. When the stopper 9032 moves upward and abuts the upper sidewall of the slot 110 of the mounting base 100, the locking mechanism enters a locked state. Friction between the stopper 9032 and the upper sidewall of the slot 110 limits the movement of the stopper 9032 along the slot 110, which in turn limits the movement of the threaded rod 9031 and the slider 903 along the slot 110. When the limit member 9032 moves downward and away from the upper side wall inside the slide groove 110, the locking mechanism is in an unlocked state. At this time, the limit member 9032 can move freely relative to the slide groove 110. By manually pushing the slider 903, the slider 903 can slide along the slide groove 110 of the mounting base 100, so that the position of the label scanning device 90 can be freely adjusted.

[0056] Next, the structure and connection method of the brush mechanism 30 of the present application will be further described by way of example.

[0057] Please combine Figure 3 and Figure 10In one embodiment, the brush mechanism 30 includes a brush member for removing foreign matter. The brush member is located above the board inlet end 201 of the conveyor mechanism 20, and the foreign object sensor 40 is located at the board inlet end 201 of the conveyor mechanism 20. In the conveying direction of the conveyor mechanism 20, the brush member is closer to the board inlet side of the conveyor mechanism 20 than the foreign object sensor 40. This ensures that the foreign object sensor 40 performs its detection action after the brush member performs its cleaning action, preventing the possibility of false detection by the foreign object sensor 40.

[0058] In an embodiment, the brush mechanism 30 further includes a lifting drive device 31, which is provided on the machine frame 10. Specifically, the lifting drive device 31 is fixed to the inner wall of one of the panels of the machine frame 10 by fasteners. The brush component is provided at the output end of the lifting drive device 31, and the lifting drive device 31 drives the brush component to move up and down. The lifting drive device 31 can be a cylinder, an electric cylinder, or other drive device that can output reciprocating motion. The lifting drive device 31 of this embodiment uses a relatively low-cost cylinder. In some application scenarios, when it is necessary to stop the machine to remove the circuit board 70 on the conveying mechanism 20, the valve switch of the cylinder is manually operated, and the cylinder moves the brush component upward and away from the conveying mechanism 20 so that the circuit board 70 on the conveying mechanism 20 can be manually removed; after the circuit board 70 is removed, the valve switch of the cylinder is manually operated, so that the cylinder drives the brush component downward to the preset working position. In addition, when the conveying mechanism 20 stops working, the cylinder also drives the brush component to move upward, so as to leave an operating space above the conveying mechanism 20, which is convenient for inspection, maintenance and other operations on the conveying mechanism 20.

[0059] In some other embodiments, the lifting drive device 31 is a cylinder, and the valve switch of the cylinder is an electric control switch, which is electrically connected to the control unit 50. The control unit 50 controls the operation of the electric control switch, thereby controlling the movement of the cylinder, and ultimately controlling the lifting drive device 31 to drive the brush mechanism 30 to move up and down.

[0060] In other embodiments, the lifting drive device 31 can adopt an electric cylinder (or linear module), which is electrically connected to the control unit 50. The control unit 50 controls the electric cylinder to drive the brush component to move down precisely according to a preset stroke, so that the brush mechanism 30 can flexibly adjust its position according to the thickness of different circuit boards 70, ensuring that the brush mechanism 30 can be suitable for circuit boards 70 of different thicknesses.

[0061] In one embodiment, the brush assembly includes a brush handle and a brush plate 32. The brush handle is fixed to the output end of the lifting drive device 31 by a fastener. The brush plate 32 is fixed to the brush handle, and the plate surface of the brush plate 32 is perpendicular to the conveying direction of the conveying mechanism 20, and the bottom side of the brush plate 32 is parallel to the transmission surface of the conveying mechanism 20, wherein the transmission surface of the conveying mechanism 20 can be understood as the plane where the circuit board 70 is located or the plane where the bottom side wall of the circuit board 70 is located. When the conveying mechanism 20 conveys the circuit board 70 along its conveying direction, the bottom side of the brush plate 32 contacts the upper surface of the circuit board 70 and slides relative to the upper surface of the circuit board 70, so that foreign matter can be swept off the upper surface of the circuit board 70, and the cleaning process is simple and quick; in addition, the cleaning process is carried out simultaneously with the process of the conveying mechanism 20 conveying the circuit board 70, and will not affect the efficiency of the conveying mechanism 20 in conveying the circuit board 70.

[0062] In one embodiment, the brush plate 32 includes a hard rod 321 and a bristle group 322. The hard rod 321 is fixed to the brush handle by a fastener. The orthographic projection formed by the bristle group 322 on the conveying mechanism 20 is located between the foreign object sensor 40 and the end edge of the feed end 201 of the conveying mechanism 20. The bristle group 322 can be made of a collection of filaments such as plastic filaments, cotton filaments, feathers, etc. The filaments of the bristle group 322 are fixed to the hard rod 321 by bonding, welding, rope tying or other suitable connection methods, and are extended along the length direction of the hard rod 321. The length of the bristle group 322 extending along the hard rod 321 is greater than the width of the circuit board 70. When the lifting drive device 31 drives the brush component to move downward to a preset position, the bristle group 322 on the hard rod 321 contacts the top surface of the conveying mechanism 20 and the upper surface of the circuit board 70. When the bristle group 322 and the circuit board 70 slide relative to each other, the bristle group 322 can fully clean the upper surface of the circuit board 70.

[0063] Next, the structure and connection method of the board inlet sensor 92 and the board outlet sensor 94 of the present application are further described by way of example.

[0064] Please combine Figure 3 、 Figure 11 as well as Figure 12In one embodiment, both the board inlet sensor 92 and the board outlet sensor 94 are non-contact induction switches. The board inlet sensor 92 and the board outlet sensor 94 can sense the circuit board 70 without contacting the circuit board 70, thereby preventing the board inlet sensor 92 and the board outlet sensor 94 from affecting the conveying mechanism 20 in conveying the circuit board 70. Specifically, the board inlet sensor 92 and / or the board outlet sensor 94 are proximity switches, such as photoelectric induction switches. Preferably, the board inlet sensor 92 and / or the board outlet sensor 94 are background suppression photoelectric sensors. Background suppression photoelectric sensors can reduce color interference of the circuit board 70 itself. Their detection capability is basically unaffected by the color of the circuit board 70 itself, and thus can detect circuit boards 70 of different colors.

[0065] In one embodiment, the board inlet sensor 92 is located below the board inlet end 201 of the conveyor mechanism 20 and is spaced apart from the board inlet end 201 of the conveyor mechanism 20. The board outlet sensor 94 is located below the board outlet end 202 of the conveyor mechanism 20 and is spaced apart from the board outlet end 202 of the conveyor mechanism 20. The board inlet sensor 92 and the board outlet sensor 94 can sense the circuit boards 70 without contacting the circuit boards 70, thereby preventing the board inlet sensor 92 and the board outlet sensor 94 from interfering with the conveyor mechanism 20 in conveying the circuit boards 70.

[0066] In one embodiment, the board inlet sensor 92 is connected to the inner wall of the housing and is located below the board inlet window 14 ; the board outlet sensor 94 is connected to the inner wall of the housing and is located below the board outlet window 16 .

[0067] In an optional embodiment, a first connecting seat 91 and a second connecting seat 93 are provided in the machine frame. Specifically, the first connecting seat 91 and the second connecting seat 93 are fixed to the bottom of the board inlet window 14 and the bottom of the board outlet window 16 respectively through fasteners.

[0068] The first connecting base 91 defines a first slot 911. Specifically, the first slot 911 extends perpendicular to the conveying direction of the conveyor mechanism 20 and parallel to the conveying surface of the conveyor mechanism 20. First, inwardly protruding first blocks 925 are symmetrically positioned on the inner walls of the two opposing notches of the first slot 911. The plate-feed sensor 92 includes a first sensor body 921, a first connecting rod, a first washer 924, and a first linear spring 922. One end of the first connecting rod is connected to the first sensing body 921, and the other end has a first end cap 923. The first end cap 923 is disposed within the first slide groove 911 and is slidable along the first slide groove 911. A first washer 924 and a first linear spring 922 are sleeved on the first connecting rod, with the first washer 924 positioned between the first linear spring 922 and the first slide groove 911. Under the deforming elastic force of the first linear spring 922, the first washer 924 abuts against the edge of the notch of the first slide groove 911, and the first end cap 923 abuts against two first latches 925. This structural solution makes the position of the board infeed sensor 92 adjustable, suitable for sensing circuit boards 70 of different batches and models. When the position of the plate entry sensor 92 needs to be adjusted, it is only necessary to manually push the first washer 924 with a tool, so that the first washer 924 overcomes the deformation elastic force of the first linear spring 922 and moves toward the first sensing body 921, so that the first washer 924 is separated from the first slide groove 911, so that the end cap of the first connecting rod can be easily pushed to slide along the first slide groove 911 to the expected position, and then the first washer 924 is released, and the deformation elastic force of the first linear spring 922 pushes the first washer 924 toward the first slide groove 911, so that the first washer 924 abuts against the first slide groove 911, and the relative position of the plate entry sensor 92 and the first slide groove 911 is determined by the friction force between the first washer 924 and the first slide groove 911 and the friction force between the first end cap 923 and the two first blocks 925.

[0069] The second connecting seat 93 defines a second slot 110 extending parallel to the first slot 911. The inner walls of the two opposing notches of the second slot 110 are symmetrically provided with inwardly protruding second blocks. The board-out sensor 94 includes a second sensing body, a second connecting rod, a second washer, and a second linear spring. One end of the second connecting rod is connected to the second sensing body, and the other end has a second end cap, which is slidable within the second slot 110. The second washer and the second linear spring are sleeved on the second connecting rod, and the second washer is located between the second linear spring and the second slot 110. Under the deformation force of the second linear spring, the second washer abuts the edge of the notch of the second slot 110, and the second end cap abuts the two second blocks. The aforementioned structural solution makes the position of the board-out sensor 94 adjustable, suitable for sensing different batches and models of circuit boards 70. The adjustment principle of the plate-out sensor 94 is similar to that of the plate-in sensor 92 , and therefore, the adjustment principle of the plate-out sensor 94 will not be described in detail here, nor will the installation scheme of the plate-out sensor 94 be illustrated.

[0070] Please combine Figures 13 to 19 In one embodiment, the conveying mechanism 20 includes two support plates 211 symmetrically mounted on the machine frame, two conveyor belts 21 mounted on the two support plates 211, and a drive assembly 22 for simultaneously driving the two conveyor belts 21. The two conveyor belts 21 are configured to support both sides of the circuit board 70. Driven by the drive assembly 22, the two conveyor belts 21 act synchronously on both sides of the circuit board 70, thereby propelling the circuit board 70 forward. This structural solution creates a clearance space between the two conveyor belts 21 to avoid the components on the bottom surface of the circuit board 70. The first orthographic projection 301 of the board inlet sensor 92 and the second orthographic projection 302 of the board outlet sensor 94 are located between the two conveyor belts 21. Specifically, the board inlet sensor 92 and the board outlet sensor 94 are both located between the two conveyor belts 21. The board inlet sensor 92 and the board outlet sensor 94 sense the lower surface of the circuit board 70 from bottom to top, increasing the area of ​​the circuit board 70 that can be sensed. Therefore, the board inlet sensor 92 and the board outlet sensor 94 can more accurately sense the circuit board 70. In addition, the orthographic projections formed by the brush mechanism 30, the foreign object sensor 40, and the label scanning device 90 on the conveying surface of the conveying mechanism 20 are also located between the two conveyor belts 21.

[0071] In one embodiment, the conveyor belt 21 includes a pulley assembly mounted on a support plate 211 and an interlocking belt 2122 mounted on the pulley assembly. The interlocking belt 2122, constrained by the pulley assembly, forms a support portion 2123 extending along the conveying direction of the conveyor mechanism 20. The support portion 2123 supports the circuit board 70. The drive assembly 22 simultaneously drives the pulley assemblies of both conveyor belts 21 via an interlocking shaft 23, so that the pulley assembly drives the interlocking belt 2122 to transport the circuit board 70.

[0072] In one embodiment, the pulley assembly includes a driving pulley 2124, two driven pulleys 2121, and a plurality of tensioning pulleys 2125. The two driven pulleys 2121 are located at either end of the abutment platform 2112. The two driven pulleys 2121 limit the position of the interlocking belt 2122, thereby forming a support portion 2123. Each tensioning pulley 2125 is located below the driven pulleys 2121 and is used to provide tension to the interlocking belt 2122. The ends of the interlocking shaft 23 are rotatably connected to the two support plates 211. The driving pulleys 2124 of the two pulley assemblies are sleeved on the interlocking shaft 23. When the interlocking shaft 23 rotates, the driving pulleys 2124 of the two pulley assemblies rotate synchronously.

[0073] Regarding the installation method of the two support plates 211, there are the following implementation methods: In one embodiment (not shown), both support plates 211 may be fixedly connected to the machine frame 10 , and the distance between the two support plates 211 is not adjustable. As for how the support plates 211 are fixedly connected to the machine frame 10 , there is no limitation here.

[0074] In one embodiment, one of the two support plates 211 is movably connected to the machine frame 10, and the other is fixedly connected to the machine frame 10. Specifically, a first built-in plate 11 and a second built-in plate 12 are provided inside the machine frame 10. The first built-in plate 11 and the second built-in plate 12 are fixedly connected to the inner wall of the machine frame 10 by fasteners, and the bottoms of the first built-in plate 11 and the second built-in plate 12 are connected by a base plate 13. A guide rod 81 is provided between the first built-in plate 11 and the second built-in plate 12. The number of guide rods 81 can be one, two, or more. The guide rod 81 is perpendicular to the first built-in plate 11 and the second built-in plate 12, and its two ends are respectively connected to the first built-in plate 11 and the second built-in plate 12. The two support plates 211 are provided between the first built-in plate 11 and the second built-in plate 12 and are sleeved on the guide rods 81. The support plate 211 closer to the first built-in plate 11 is fixedly connected to the first built-in plate 11 by fasteners and cannot slide relative to the guide rods 81. The support plate 211 close to the second inner plate 12 can slide back and forth relative to the guide rod 81 along the axial direction of the guide rod 81 .

[0075] Furthermore, the distance between the two support plates 211 can be adjusted by a screw mechanism. Specifically, the screw mechanism includes a screw shaft 80, a screw sleeve and a screw motor. The two ends of the screw shaft 80 pass through the first built-in plate 11 and the second built-in plate 12 respectively, and are rotatably connected to the first built-in plate 11 and the second built-in plate 12 respectively. The screw motor is fixed to the side of the first built-in plate 11 facing away from the support plate 211, and its rotating shaft is connected to the screw rotating shaft through a shaft coupling component. The screw sleeve is sleeved on the screw shaft 80 and is threadedly connected to the screw shaft 80. The support plate 211 close to the first built-in plate 11 is fixedly connected to the screw sleeve. Specifically, the screw sleeve is inserted into the corresponding support plate 211 and is fixedly connected to the support plate 211 through fasteners. When the lead screw motor drives the lead screw shaft 80 to rotate forward and reverse, the lead screw shaft 80 forces the lead screw sleeve to reciprocate along the axial direction of the lead screw shaft 80, thereby driving the corresponding support plate 211 away from and toward the other support plate 211, adjusting the distance between the two support plates 211, and ultimately adjusting the distance between the two conveyor belts 21. In some application scenarios, the distance between the two conveyor belt 21 brackets can be adjusted using the aforementioned method, so that the conveying mechanism 20 can adapt to conveying circuit boards 70 of different widths.

[0076] In one embodiment, both support plates 211 are movably connected to the machine frame 10. The connection scheme of the support plates 211 in this embodiment differs from that of the previous embodiment in that the screw mechanism includes two screw sleeves, the internal threads of which rotate in opposite directions. The two support plates 211 are respectively fixedly connected to the two screw sleeves. When the screw motor drives the screw shaft 80 to rotate, the screw shaft 80 drives the two screw shaft sleeves 80 to move closer to and away from each other, thereby driving the two support plates 211 closer to and away from each other.

[0077] Next, the structure of the support plate 211 is further exemplified.

[0078] Please combine Figure 9 and Figure 10 In one embodiment, an abutment platform 2112 is protruding from the inner sidewall of the support plate 211. Preferably, the abutment platform 2112 is integrally formed with the support plate 211. The abutment platform 2112 extends along the conveying direction of the conveying mechanism 20. The abutment platform 2112 is located below the support portion 2123 and abuts the bottom surface of the support portion 2123 to provide support for the support portion 2123, thereby preventing the support portion 2123 from being deformed by the downward pressure of the circuit board 70, which would affect the supporting effect of the support portion 2123.

[0079] In the embodiment where the distance between the two support plates 211 is adjustable, the radial cross-section of the linkage shaft 23 is prismatic, elliptical, or other non-circular shapes, and the driving wheel 2124 is provided with an assembly hole corresponding to the radial cross-section of the linkage shaft 23. After the linkage shaft 23 is inserted into and assembled with the assembly hole, the rotation of the linkage shaft 23 drives the driving wheel 2124 to rotate, and the linkage shaft 23 and the driving wheel 2124 can move relative to each other in the axial direction of the linkage shaft 23. This design allows the screw mechanism to drive the support plate 211 and the driving wheel 2124 to move axially along the linkage shaft 23, while also allowing the linkage shaft 23 to drive the driving wheel 2124.

[0080] Next, an example explanation will be given of how the driving assembly 22 drives the interlocking belt 2122 .

[0081] In one embodiment, the drive assembly 22 includes a drive motor and a coupling. The drive motor is secured to the machine frame 10 via fasteners. Specifically, the drive motor is secured to the side of the first internal plate 11 facing away from the support plate 211 via fasteners. The drive motor's rotating shaft is coaxially connected to the linkage shaft 23 via the coupling. The drive motor drives the linkage shaft 23 to rotate, which in turn drives the driving pulleys 2124 of the two belt assemblies to rotate synchronously. The driving pulleys 2124 drive the linkage belt 2122 to move, thereby causing the support portion 2123 of the linkage belt 2122 to move the circuit board 70, thereby conveying the circuit board 70.

[0082] In one embodiment, the top surface of the support plate 211 is provided with a downwardly recessed groove 2111. The foreign object sensor 40 is a photoelectric sensor, and the light-emitting element 40a and light-receiving element 40b of the photoelectric sensor are respectively engaged with the grooves 2111 of the two support plates 211. The position of the grooves 2111 prevents the photoelectric sensor from easily shifting, thereby ensuring its sensing accuracy.

[0083] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0084] The specific contents of the above-mentioned specific embodiments merely represent several embodiments of the present invention. While the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the appended claims.

Claims

1. A multifunctional circuit board assembly docking station, comprising a machine frame (10) and an operation module arranged on the machine frame (10), characterized in that: The operation module includes: A conveying mechanism (20) for conveying a circuit board (70); a brush mechanism (30) disposed above the conveying mechanism (20) and used to clean foreign matter on the upper surface of the circuit board (70) during the process of the conveying mechanism (20) conveying the circuit board (70); a foreign matter sensor (40) for sensing foreign matter on the upper surface of the circuit board (70) after the brush mechanism (30) has cleaned the foreign matter on the upper surface of the circuit board (70); a board feed sensor (92), the position of which corresponds to the position of the board feed end (201) of the conveying mechanism (20), and is used to sense the circuit board (70) on the board feed end (201) of the conveying mechanism (20) and generate a corresponding board feed signal; a board-out sensor (94), the position of which corresponds to the position of the board-out end (202) of the conveying mechanism (20), and is used to sense the circuit board (70) at the board-out end (202) of the conveying mechanism (20) and generate a corresponding board-out signal; a label scanning device (90), which is arranged on the machine frame (10) and is used to scan the label of the circuit board (70) during the process of the conveying mechanism (20) conveying the circuit board (70); A control unit (50) controls the conveying mechanism (20) to convey the circuit board (70) and controls the label scanning device (90) to scan the label of the circuit board (70) when receiving a board feed signal fed back from the foreign object sensor (40); the control unit (50) controls the conveying mechanism (20) to stop conveying the circuit board (70) after receiving a signal indicating the presence of a foreign object fed back from the foreign object sensor (40); and controls the conveying mechanism (20) to stop conveying the circuit board (70) when receiving a board exit signal fed back from the board exit sensor (94); The board inlet sensor (92) forms a first orthographic projection (301) on the transmission surface of the conveying mechanism (20), the board outlet sensor (94) forms a second orthographic projection (302) on the transmission surface of the conveying mechanism (20), and the orthographic projections formed by the brush mechanism, the foreign matter sensor, and the label scanning device on the transmission surface of the conveying mechanism are located between the first orthographic projection (301) and the second orthographic projection (302).

2. The multifunctional circuit board assembly docking station according to claim 1, wherein: The brush mechanism (30) comprises a lifting drive device (31) provided on the machine frame (10) and a brush component at the output end of the lifting drive device (31), wherein the brush component is used to clean foreign matter on the upper surface of the circuit board (70); in the conveying direction of the conveying mechanism (20), the brush component is closer to the side of the conveying mechanism (20) where the board enters than the foreign matter sensor (40).

3. The multifunctional circuit board assembly docking station according to claim 1, wherein: The board inlet sensor (92) is located below the board inlet end (201) of the conveying mechanism (20) and is spaced apart from the board inlet end (201) of the conveying mechanism (20); the board outlet sensor (94) is located below the board outlet end (202) of the conveying mechanism (20) and is spaced apart from the board outlet end (202) of the conveying mechanism (20).

4. The multifunctional circuit board assembly docking station according to claim 1, wherein: The machine frame (10) includes a first connecting seat (91) and a second connecting seat (93) located inside the machine frame. The board inlet sensor (92) can be arranged on the first connecting seat (91) in a linear reciprocating sliding manner. The moving trajectory of the board inlet sensor (92) is parallel to the transmission surface of the conveying mechanism (20) and perpendicular to the conveying direction of the conveying mechanism (20). The board outlet sensor (94) can be arranged on the second connecting seat (93) in a linear reciprocating sliding manner. The moving trajectory of the board outlet sensor (94) is parallel to the moving trajectory of the board inlet sensor (92).

5. The multifunctional circuit board assembly docking station according to any one of claims 1 to 4, characterized in that: The machine frame (10) includes a shell, and the shell is provided with a symmetrically arranged board inlet window (14) and a board outlet window (16); the conveying mechanism (20) is arranged in the shell, and the board inlet end (201) of the conveying mechanism (20) extends from the board inlet window (14) to the outside of the shell, and the board outlet end (202) of the conveying mechanism (20) extends from the board outlet window (16) to the outside of the shell; the board inlet sensor (92) is located below the board inlet window (14); and the board outlet sensor (94) is located below the board outlet window (16).

6. The multifunctional circuit board assembly docking station according to claim 5, wherein: The machine frame (10) includes two mounting seats (100); the shell is provided with an upper cavity (101) and a lower cavity (102) arranged in an upward and downward direction; the plate inlet window (14) and the plate outlet window (16) are opened in the upper cavity (101); the bottom wall of the upper cavity (101) is provided with a bottom window (1012) that passes through the lower cavity (102), and the bottom window (1012) is provided with a detachable shielding plate (1011), and the shielding plate (1011) closes the bottom window (1012); the two mounting seats (100) are respectively fixed to the inner wall of the upper cavity (101) and the lower cavity (102). The inner wall of the cavity (102); the conveying mechanism (20) is arranged in the upper cavity (101); the label scanning device (90) is detachably mounted on one of the two mounting seats (100); when the label scanning device (90) is mounted on the mounting seat (100) in the upper cavity (101), the label scanning device (90) is located above the conveying mechanism (20); when the label scanning device (90) is mounted on the mounting seat (100) in the lower cavity (102), the label scanning device (90) is located below the conveying mechanism (20) and is directly opposite to the bottom window (1012).

7. The multifunctional circuit board assembly docking station according to claim 6, wherein: The mounting base (100) is provided with a slide groove (110); the label scanning device (90) includes a scanning body (901), a connecting frame (902) and a slider (903); the slider (903) can be slidably connected to the slide groove (110) in a linear reciprocating manner; the moving trajectory of the slider (903) is parallel to the transmission surface of the conveying mechanism (20) and perpendicular to the conveying direction of the conveying mechanism (20); the scanning body (901) is arranged on the slider (903) through the connecting frame (902) and can slide together with the slider (903).

8. The multifunctional circuit board assembly docking station according to claim 1, wherein: The conveying mechanism (20) comprises two supporting plates (211) symmetrically arranged on the machine frame (10), two conveyor belts (21) respectively arranged on the two supporting plates (211), and a driving assembly (22) for simultaneously driving the two conveyor belts (21); the two conveyor belts (21) are configured to respectively support two sides of the circuit board (70); the orthographic projections formed by the brush mechanism (30), the foreign object sensor (40) and the label scanning device (90) on the conveying surface of the conveying mechanism (20) are located between the two conveyor belts (21); and the first orthographic projection (301) and the second orthographic projection (302) are located between the two conveyor belts (21).

9. The multifunctional circuit board assembly docking station according to claim 8, wherein: The transmission belt (21) comprises a pulley group provided on the support plate (211) and a linkage belt (2122) sleeved on the pulley group; the linkage belt (2122) forms a support portion (2123) extending along the conveying direction of the conveying mechanism (20) under the limit of the pulley group, and the circuit board (70) is supported by the support portion (2123); the driving component (22) simultaneously drives the pulley groups of the two transmission belts (21) through a linkage shaft (23), so that the pulley group drives the linkage belt (2122) to convey the circuit board (70); an abutment platform (2112) is convexly provided on the inner side wall of the support plate (21), and the abutment platform (2112) is extended along the conveying direction of the conveying mechanism (20); the abutment platform (2112) is located below the support portion (2123) and abuts against the bottom surface of the support portion (2123).

10. The multifunctional circuit board assembly docking station according to claim 8, wherein: The pulley group includes a driving pulley (2124), two driven pulleys (2121) and a plurality of tensioning pulleys (2125); the two driven pulleys (2121) are respectively located at the two ends of the abutment platform (2112), and each tensioning pulley (2125) is located below the driven pulley (2121); the two ends of the linkage shaft (23) are respectively rotatably connected to the two support plates (211); the driving pulleys (2124) of the two pulley groups are sleeved on the linkage shaft (23); the driving assembly (22) includes a driving motor and a shaft coupling, the driving motor is fixed to the outer wall of one of the support plates (211), the rotating shaft of the driving motor is coaxially connected to the linkage shaft (23) through the shaft coupling, and the driving motor drives the linkage shaft (23) to rotate.

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