Sorting device based on pattern recognition

Abstract

The utility model discloses a sorting device based on pattern recognition, which comprises a machine frame, a conveying mechanism is arranged on the machine frame, the conveying mechanism comprises a multidirectional sorting plate, an image detection mechanism is arranged on the machine frame, and a fixing frame comprises an industrial camera. According to the sorting device based on pattern recognition, data are transmitted to a computer through an industrial camera, after system analysis set by the computer, circuit boards are conveyed to different positions through a conveying belt and a multi-direction sorting plate according to different problems, rapid reworking of the circuit boards is facilitated, manpower is reduced, and the working efficiency is improved; according to the sorting device based on pattern recognition, the detection box is closed, harm of ultraviolet rays to human bodies is reduced, the sorting device based on pattern recognition is used in cooperation with the computer and the conveying belt through detection of the infrared device, so that PCBs are accurately placed at designated positions, and follow-up detection is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of graphic recognition, in particular to a graphic recognition-based sorting device. Background Art

[0002] Circuit boards make circuits miniaturized and intuitive, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. In actual use, some components need to be protected, usually with conformal coatings.

[0003] Generally, after the components of the circuit board are installed, the surface of the circuit board is sprayed with conformal coating. When spraying the conformal coating, the circuit board needs to be heated after the conformal coating is sprayed during the manual placement process. Because the circuit board surface is overheated and the conformal coating is not completely dry, the staff may not pay attention and touch the circuit board components, which may cause the components to fall off. In addition, during the painting process of the circuit board, different circuit boards need to be programmed with different programs, which may cause errors in the running trajectory of the conformal coating nozzle. Some components of the circuit board need to be painted, but some components should not be sprayed with conformal coating. In order to prevent the conformal coating nozzle from being in a high position and causing the conformal coating spray to scatter and fall on other components, the conformal coating nozzle will be adjusted to a very low position to ensure accurate spraying of the conformal coating, but at the same time, the conformal coating nozzle may hit the components on the circuit board during operation, causing the components on the circuit board to fall off.

[0004] After spraying the three-conformal paint, inspection is still required. Some factories use ultraviolet light for irradiation and then manual observation. However, the manual inspection method is easily affected by factors such as the environment and the subjective state of people, which leads to missed inspections during the inspection process. Manual inspection not only reduces the progress of product production and increases human resources, but also mainly inspects the spraying position of the three-conformal paint after spraying the three-conformal paint. Based on the fact that the components have been inspected before, the components on the circuit board have not been inspected again in time. In addition, some existing inspection agencies have a single inspection of the three-conformal paint of components, and often focus on the inspection of the position of the three-conformal paint. The components on the circuit board are not inspected in time, resulting in product defects. In addition, some existing agencies have a single inspection of the three-conformal paint and the circuit board. All components have been tested, and during rework, the circuit boards with problems will be reworked uniformly, but the problems are different, and the rework work areas are also different. It is necessary to waste manpower to classify the products according to different problems, and then transport the circuit boards to the three-defense area and component area according to different errors. Due to the different minor errors and the possibility of multiple errors, there are problems with the reworked products, but the work area staff do not know what went wrong, so the work area staff modify it according to their own inspections. However, due to the wide variety of circuit boards and inconsistent standards worked by the work area staff, there may be manual errors in the inspection of different circuit boards, resulting in some errors in the reworked circuit boards not being resolved in a timely manner, which may cause secondary rework.

[0005] To this end, the utility model provides a sorting device based on graphic recognition to solve the above problems. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a sorting device based on graphic recognition to solve the above problems.

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a graphic recognition-based sorting device, comprising a frame, a conveying mechanism is arranged on the frame, the conveying mechanism comprises a multi-directional sorting plate, an image detection mechanism is arranged on the frame, and the image detection mechanism comprises an industrial camera.

[0008] Preferably: the conveying mechanism includes a conveyor belt, which is arranged on a frame, the multi-directional sorting plate is arranged at a conveyor belt port, the multi-directional sorting plate is rotatably connected to a rotating sorting plate, a motor is arranged inside the multi-directional sorting plate, the rotating sorting plate is provided with four holes, the conveying mechanism also includes an inclined guide wheel, the inclined guide wheel is clamped in the hole on the rotating sorting plate, the side end of the inclined guide wheel is fixedly connected to a transmission shaft, and the transmission shaft is connected to the motor through a transmission assembly.

[0009] Preferably, the image detection mechanism further comprises an industrial computer, the industrial computer is arranged outside the detection box, a plurality of ultraviolet lamps are arranged on the inner side wall of the detection box, a fixed frame is arranged inside the detection box, a moving rod is slidably connected to the upper side of the fixed frame, an X moving plate is fixedly connected to the moving rod, a y moving plate is fixedly connected to the side end of the moving rod, and an infrared device is arranged on the side wall of the rack.

[0010] Preferably, the bottom end of the y movable plate is fixedly connected to a Y guide rail, the side end of the fixed frame is fixedly connected to an L-shaped plate, the side end of the movable rod is fixedly connected to an L-shaped plate, the upper side of the X movable plate is fixedly connected to an X guide rail, and one end of the X guide rail is fixedly connected to the L-shaped plate.

[0011] Preferably: the industrial camera is fixedly connected to the bottom end of the X-moving plate, the upper end of the fixed frame is fixedly connected to a first drive motor and a second drive motor, the output end of the first drive motor is connected to a first drive belt, and the output end of the second drive motor is connected to a second drive belt.

[0012] Preferably, a collecting box is placed on the conveyor belt, a PCB board is provided inside the collecting box, and numbers are provided on the collecting box.

[0013] Beneficial Effects

[0014] The utility model provides a sorting device based on graphic recognition. Compared with the prior art, it has the following beneficial effects:

[0015] (1) A sorting device based on graphic recognition, which transmits data to a computer through an industrial camera. After a system analysis set by the computer, the circuit boards are transported to different locations using a conveyor belt and a multi-directional sorting plate according to the different problems, facilitating rapid rework of the circuit boards, reducing labor and improving work efficiency.

[0016] (2) A graphic recognition-based inspection device that reduces the harm of ultraviolet rays to the human body by sealing the inspection box.

[0017] (3) A graphic recognition-based sorting device that uses an infrared device for detection in conjunction with a computer and a conveyor belt to accurately place the PCB board in the specified position for subsequent inspection.

[0018] (4) A graphic recognition-based sorting device, which sets numbers on the collection box and uses an industrial camera to transmit information to a computer. The problems found are compiled together with the numbers and transmitted to the work area through the network, so as to improve the efficiency of rework and the qualified rate of reworked products in the future.

[0019] (4) A graphic recognition-based sorting device, in which a computer is used in conjunction with a first drive motor and a second drive motor. The transmission components enable the industrial camera to take a more comprehensive picture of the PCB board, which is suitable for photographing PCB boards of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front side view of the internal structure of the utility model;

[0021] Figure 2 It is a rear side view of the internal structure of the utility model;

[0022] Figure 3 It is the overall structure diagram of the utility model;

[0023] Figure 4 It is an industrial camera diagram of the utility model;

[0024] Figure 5 It is a diagram of the infrared device of the utility model;

[0025] Figure 6 2 is a diagram of a practical multi-directional sorting plate structure.

[0026] In the figure, 1, the frame;

[0027] Conveying mechanism: 21. conveyor belt; 22. multi-directional sorting plate; 23. rotating sorting plate; 24. inclined guide wheel; 25. transmission shaft;

[0028] Image detection mechanism: 31, detection box; 32, industrial computer; 33, fixed frame; 34, infrared device; 35, first drive motor; 36, second drive motor; 37, first transmission belt; 38, second transmission belt; 39, X moving plate; 391, y moving plate; 392, X guide rail; 393, Y guide rail; 394, industrial camera; 395, moving rod;

[0029] 4. PCB board; 5. Collection box. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Embodiment 1:

[0032] See also Figure 1-5A graphic recognition-based sorting device includes a frame 1, a conveying mechanism is provided on the frame 1, the conveying mechanism includes a multi-directional sorting plate 22, and an image detection mechanism is provided on the frame 1, and the image detection mechanism includes an industrial camera 394.

[0033] The conveying mechanism includes a conveyor belt 21, which is arranged on the frame 1, and a multi-directional sorting plate 22 is arranged at the end of the conveyor belt 21. A rotating sorting plate 23 is rotatably connected to the multi-directional sorting plate 22. A motor is arranged inside the multi-directional sorting plate 22. The rotating sorting plate 23 is provided with four holes. The conveying mechanism also includes an inclined guide wheel 24, which is stuck in the hole on the rotating sorting plate 23. The side end of the inclined guide wheel 24 is fixedly connected to a transmission shaft 25, and the transmission shaft 25 is connected to the motor through a transmission assembly.

[0034] The image detection mechanism also includes an industrial computer 32, which is arranged on the outside of the detection box 31. A plurality of ultraviolet lamps are arranged on the inner side wall of the detection box 31. A fixed frame 33 is arranged on the inner side of the detection box 31. A moving rod 395 is slidably connected to the upper side of the fixed frame 33. An X moving plate 39 is fixedly connected to the moving rod 395. A Y moving plate 391 is fixedly connected to the side end of the moving rod 395. An infrared device 34 is arranged on the side wall of the frame 1.

[0035] The bottom end of the y moving plate 391 is fixedly connected to the Y guide rail 393, the side end of the fixed frame 33 is fixedly connected to the L-shaped plate, the side end of the moving rod 395 is fixedly connected to the L-shaped plate, the upper side of the X moving plate 39 is fixedly connected to the X guide rail 392, and one end of the X guide rail 392 is fixedly connected to the L-shaped plate.

[0036] The industrial camera 394 is fixedly connected to the bottom end of the X movable plate 39, and the upper end of the fixed frame 33 is fixedly connected to the first drive motor 35 and the second drive motor 36. The output end of the first drive motor 35 is connected to the first drive belt 37, and the output end of the second drive motor 36 is connected to the second drive belt 38.

[0037] A collecting box 5 is placed on the conveyor belt 21 . A PCB board 4 is arranged inside the collecting box 5 . Numbers are set on the collecting box 5 .

[0038] Working process:

[0039] When the collection box 5 is transported to the designated position inside the detection box 31, it is detected by the infrared device 34, so that the conveyor belt 21 stops conveying, the industrial camera 394 starts shooting, and the industrial computer 32 gives electrical signals to the first drive motor 35 and the second drive motor 36, and causes the first transmission belt 37 and the second transmission belt 38 to transmit. The transmission of the first transmission belt 37 drives the Y moving plate 391 to move along the Y guide rail 393, and the transmission of the second transmission belt 38 drives the X moving plate 39 to move along the X guide rail 392, so that the industrial camera 394 fully inspects the collection box 5. After one inspection, the industrial computer 32 starts the ultraviolet lamp on the inner side wall of the detection box 31, and the industrial camera 394 shoots again to avoid secondary inspection and avoid errors in components caused by ultraviolet rays during shooting. The three-proof paint coating on the PCB board 4 is inspected against the standard, and any problems are recorded and transmitted to the work area.

[0040] Categorize the problem boards:

[0041] The conveyor belt 21 conveys the collection box 5 to the inside of the detection box 31, and the industrial camera 394 takes a picture and transmits it to the industrial computer 32. After the image analysis, the arrangement of components in the PCB board 4 is automatically identified, and the detection standard of the PCB board 4 is automatically found. When it is detected that the components of the PCB board 4 are damaged and detached, according to the program set by the industrial computer 32, an electrical signal is given to the motor inside the multi-directional sorting board 22, so that the multi-directional sorting board 22 and a motor inside the multi-directional sorting board rotate forward, so that the rotating sorting board 23 as a whole rotates The left side rotates 90 degrees and another motor is used to drive the inclined guide wheel 24, so it is kept started, so that the transmission shaft 25 rotates, and the rotation of the transmission shaft 25 drives the inclined guide wheel 24 to rotate, so that the collection box 5 on the multi-directional sorting plate 22 is transported to the left conveyor belt 21, so that the collection box 5 is transported from the left conveyor belt 21 to the designated position and collected in sequence, and the industrial computer 32 compiles and counts the number and the defect information that occurs, so as to facilitate the subsequent transmission of the information directly to the work area. When an error is detected in the spraying of the three-proof paint of the PCB board 4, according to the industrial computer industrial The program set in the computer 32 gives an electrical signal to the motor inside the multi-directional sorting plate 22, so that the multi-directional sorting plate 22 and a motor inside the multi-directional sorting plate rotate forward, so that the rotating sorting plate 23 rotates 90 degrees to the right as a whole. Another motor is used to drive the inclined guide wheel 24, so it is always kept started, so that the transmission shaft 25 rotates, and the rotation of the transmission shaft 25 drives the inclined guide wheel 24 to rotate, thereby transporting the collection box 5 on the multi-directional sorting plate 22 to the left conveyor belt 21, so that the collection box 5 is transported from the right conveyor belt 21 to the designated position and collected in sequence. It is convenient for subsequent rework to be compared one by one. When it is detected that the three-proof paint and components on the PCB board 4 are all wrong, the PCB board 4 passes through the first multi-directional sorting plate 22 to the second multi-directional sorting plate 22 and is collected. When the inspection side collection box 5 is accurate, the inclined guide wheel 24 on the multi-directional sorting plate 22 does not deflect. According to different problems, the circuit board is transported to different positions, which is convenient for rapid rework of the circuit board. When the inspection is qualified, the rotating sorting plate 23 does not deflect, driving the inclined guide wheel 24 to keep running, so that the product is transported to the specified position.

[0042] The recognition principle of the PCB board 4 by the industrial computer 32 can adopt the AOI testing technology in the prior art, and the control principle of the multi-directional sorting board 22 by the industrial computer 32 can adopt the friction deflection wheel sorting machine system technology in the prior art.

[0043] In this embodiment, the infrared device 34 can adopt an infrared sensor in the prior art; the computer includes a control switch for the first drive motor 35, a control switch for the second drive motor 36, a control switch for the industrial camera 394, and a control switch for the multi-directional sorting plate 22. The control switch for the first drive motor 35, the control switch for the second drive motor 36, and the control switch for the industrial camera 394 are all mature components in the prior art, and their structures and control principles are all prior art.

[0044] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pattern recognition-based sorting device, comprising a frame (1), characterized in that: The frame (1) is provided with a conveying mechanism, the conveying mechanism comprising a multi-directional sorting plate (22), and the frame (1) is provided with an image detection mechanism; The image detection mechanism comprises an industrial camera (394), the conveying mechanism further comprises a conveying belt (21), the conveying belt (21) is arranged on the frame (1), the multi-directional sorting plate (22) is arranged at the end of the conveying belt (21), a rotating sorting plate (23) is rotatably connected to the multi-directional sorting plate (22), two motors are arranged inside the multi-directional sorting plate (22), the rotating sorting plate (23) is provided with four holes, and the conveying mechanism further comprises an inclined guide wheel (24); The image detection mechanism further comprises an industrial computer (32), wherein the industrial computer (32) is arranged outside the detection box (31), a plurality of ultraviolet lamps are arranged on the inner side wall of the detection box (31), and an infrared device (34) is arranged on the side wall of the frame (1).

2. The pattern recognition-based sorting device according to claim 1, characterized in that: The inclined guide wheel (24) is clamped in a hole on the rotating sorting plate (23); a transmission shaft (25) is fixedly connected to a side end of the inclined guide wheel (24); and the transmission shaft (25) is connected to a motor via a transmission assembly.

3. The pattern recognition-based sorting device according to claim 1, characterized in that: A fixed frame (33) is arranged inside the detection box (31); a moving rod (395) is slidably connected to the upper side of the fixed frame (33); an X moving plate (39) is fixedly connected to the moving rod (395); and a Y moving plate (391) is fixedly connected to the side end of the moving rod (395).

4. The pattern recognition-based sorting device according to claim 3, characterized in that: The bottom end of the Y movable plate (391) is fixedly connected to a Y guide rail (393), the side end of the fixed frame (33) is fixedly connected to an L-shaped plate, the side end of the movable rod (395) is fixedly connected to the L-shaped plate, the upper side of the X movable plate (39) is fixedly connected to an X guide rail (392), and one end of the X guide rail (392) is fixedly connected to the L-shaped plate.

5. The pattern recognition-based sorting device according to claim 4, characterized in that: The industrial camera (394) is fixedly connected to the bottom end of the X-moving plate (39); the upper end of the fixed frame (33) is fixedly connected to a first drive motor (35) and a second drive motor (36); the output end of the first drive motor (35) is drivingly connected to a first drive belt (37); and the output end of the second drive motor (36) is drivingly connected to a second drive belt (38).

6. The pattern recognition-based sorting device according to claim 5, characterized in that: A collection box (5) is placed on the conveyor belt (21), a PCB board (4) is provided inside the collection box (5), and a number is provided on the collection box (5).

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