High-efficiency plate movement detection device

Abstract

The utility model relates to the technical field of panel veneer detection, in particular to a high-efficiency panel veneer movement detection device which comprises a machine frame, a double-station material taking mechanism, a detection mechanism and a conveying mechanism, the double-station material taking mechanism, the detection mechanism and the conveying mechanism are all arranged on the machine frame, the conveying mechanism is used for conveying panel veneers, and the detection mechanism comprises an upper visual detector and a lower visual detector. The upper visual detector and the lower visual detector are line scanning cameras; the upper visual detector is located above the plate, and the lower visual detector is located below the plate; the double-station material taking mechanism is used for driving the plate to move so that the lower visual detector can detect the bottom face of the plate. The conveying mechanism drives the plate to move so that the upper visual detector can detect the top face of the plate. According to the high-efficiency sheet metal movement detection device provided by the utility model, the quality of the sheet metal is detected in a line scanning manner, so that the quality of the sheet metal can be detected in the moving process, the detection efficiency can be improved, and meanwhile, the complexity and difficulty of a control system can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plate material detection, in particular to a high-efficiency plate material movement detection device. Background Art

[0002] In modern manufacturing, sheet metal quality inspection is a crucial process that directly affects the quality and performance of the final product. Currently, sheet metal quality inspection typically uses area scan camera technology, which captures images of the sheet metal surface and then analyzes and determines whether the sheet metal is qualified. However, this area scan inspection method has certain limitations:

[0003] Limited production efficiency:

[0004] When capturing images, the sheet material needs to be temporarily stopped to obtain clear image information, which interrupts the production line and reduces production efficiency.

[0005] Complex control system:

[0006] In order to achieve precise stopping during image acquisition and subsequent continued transport, the control system requires complex fixed-point sensing and calculations, which not only increases the complexity of the control system but also makes the production process more difficult to control.

[0007] Program control is difficult:

[0008] The control system needs to accurately control when to stop and resume the conveyance of the sheet metal, which places high demands on real-time monitoring and feedback mechanisms and increases the difficulty of program control.

[0009] Therefore, although the surface scanning detection method in the prior art can realize the quality detection of sheet materials, it has obvious shortcomings in production efficiency, control system complexity and program control difficulty. Summary of the Invention

[0010] In response to the problems of the prior art, the utility model provides a high-efficiency sheet material movement detection device, which detects the quality of the sheet material by line scanning. Therefore, the quality of the sheet material can be detected during the movement process, which helps to improve the detection efficiency and reduce the complexity and difficulty of the control system.

[0011] In order to solve the above technical problems, the utility model adopts the following technical solutions: a high-efficiency sheet material movement detection device, comprising a frame, and also comprising a double-station material picking mechanism, a detection mechanism, and a conveying mechanism all mounted on the frame, wherein the conveying mechanism is used to convey the sheet material, and the detection mechanism comprises an upper visual detector and a lower visual detector, wherein the upper visual detector and the lower visual detector are both line scanning cameras;

[0012] The upper visual detector is located above the sheet material, and the lower visual detector is located below the sheet material; the double-station material picking mechanism is used to drive the sheet material to move so that the lower visual detector detects the bottom surface of the sheet material; the conveying mechanism drives the sheet material to move so that the upper visual detector detects the top surface of the sheet material.

[0013] Preferably, the conveying mechanism is provided with an inspection aisle, and the inspection viewing angle of the lower visual detector is located below the inspection aisle. When the sheet material passes through the inspection aisle, the lower visual detector is used to inspect the bottom surface of the sheet material.

[0014] Preferably, the detection mechanism further includes a lighting component, and the lighting component is used to provide lighting for the visual detector during the detection process.

[0015] Preferably, the lighting assembly includes an angle adjustment bracket and a light source, the angle adjustment bracket is installed on the frame, and the angle adjustment bracket is used to adjust the lighting angle of the light source.

[0016] Preferably, the angle adjustment bracket includes a fixing part and an adjusting part. The fixing part is installed on the bracket. The fixing part is provided with an arc-shaped hole. One end of the adjusting part is fixed to the light source. The other end of the adjusting part is provided with a connecting hole. The connecting hole is locked at different positions of the arc-shaped hole by screws to change the installation angle between the adjusting part and the fixing part.

[0017] Preferably, the double-station material picking mechanism includes an x-drive unit, two sets of material picking components and two guide rails. The material picking components include a material picking unit, a y-drive unit and a z-drive unit. The guide rails are installed on the frame and located above the conveying mechanism. The x-drive unit is used to drive the material picking unit to move along the guide rails. The y-drive unit is used to drive the material picking unit to move up and down. The z-drive unit is used to drive the material picking unit to move radially along the guide rails. The material picking unit is used to drive the sheet material to move so that the visual detector can detect the sheet material.

[0018] Preferably, the x drive unit includes an x ​​slide and an x ​​driver, the x slide is slidably assembled on the guide rail, the x driver is used to drive the x slide to move on the guide rail, the y drive unit is installed on the x slide, and the z drive unit is installed on the y drive unit.

[0019] Preferably, the y drive unit includes a y slide rail, a y slide and a y drive, the y slide rail is installed on the x drive unit, the y slide is slidably installed on the y slide rail, the y slide rail is arranged perpendicular to the guide rail, and the y drive is used to drive the y slide to move on the y slide rail.

[0020] Preferably, the z drive unit includes a z slide rail, a z slide and a z driver, the z slide rail is installed on the y drive unit, the material picking unit is installed on the z slide, the z slide is slidably installed on the z slide rail, and the z driver is used to drive the z slide to move on the z slide rail.

[0021] Preferably, the rack is equipped with a fixing frame, and the two guide rails are symmetrically arranged on both sides of the fixing frame.

[0022] Beneficial effects of the utility model:

[0023] 1. By using two line scan cameras, one located above the sheet and the other below it, the upper and lower surfaces of the sheet are scanned and inspected while the sheet is moving. Inspection can be performed without stopping the sheet's conveyance, significantly improving inspection efficiency, reducing production downtime, and improving the smoothness of the entire production line.

[0024] 2. No need for complex fixed-point sensing and calculation, which simplifies the design of the control system, reduces the complexity of the production process, and makes the entire detection process easier;

[0025] 3. The design of the control system is simplified, unnecessary program control is reduced, and the overall cost of the system is reduced.

[0026] 4. By reducing the complex links in the control system, the difficulty of production management is reduced, allowing production managers to focus more on core production processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0029] Figure 3 It is a structural diagram of the detection mechanism of the utility model;

[0030] Figure 4 This is a schematic structural diagram of the upper visual detector, the lower visual detector and the transmission mechanism of the present invention;

[0031] Figure 5 This is a schematic structural diagram of the double-station material-retrieving structure of the present utility model;

[0032] Figure 6 It is a structural diagram of the guide rail and x drive unit of the utility model;

[0033] Figure 7This is a schematic structural diagram of the y drive unit, z drive unit and reclaiming unit of the present invention;

[0034] Figure 8 for Figure 7 Schematic diagram of the decomposition structure.

[0035] exist Figures 1 to 7 Reference numerals in the figures include:

[0036] 1-frame, 2-transmission mechanism, 3-upper visual detector, 4-lower visual detector, 5-detection aisle, 6-light source, 7-fixing part, 8-adjusting part, 9-arc hole, 10-connecting hole, 11-guide rail, 12-feeding unit, 13-y drive unit, 14-z drive unit, 15-x slide, 16-x drive, 17-y slide, 18-y slide, 19-y drive, 20-z slide, 21-z slide, 22-z drive, 23-fixed frame, 24-synchronous belt. DETAILED DESCRIPTION

[0037] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0038] This embodiment provides a high-efficiency plate movement detection device, such as Figures 1 to 8 , including a frame 1, and also including a double-station material picking mechanism, a detection mechanism and a conveying mechanism 2 all installed on the frame 1, the conveying mechanism 2 is used to convey the sheet material, the detection mechanism includes an upper visual detector 3 and a lower visual detector 4, the upper visual detector 3 and the lower visual detector 4 are both line scan cameras;

[0039] Among them, the upper visual detector 3 is located above the sheet material, and the lower visual detector 4 is located below the sheet material; the double-station material picking mechanism is used to drive the sheet material to move so that the lower visual detector 4 detects the bottom surface of the sheet material; the conveying mechanism 2 drives the sheet material to move so that the upper visual detector 3 detects the top surface of the sheet material.

[0040] Specifically, if Figure 1 、 Figure 2 and Figure 4As shown, the conveying mechanism 2 is a conventional technology, such as a conveyor belt conveyor. The sheet material is conveyed by the conveying mechanism 2. Since the sheet material moves on the conveying mechanism 2, the lower visual detector 4 may have a problem of limited detection viewing angle. Therefore, when the sheet material moves close to the lower visual detector 4, the double-station material picking mechanism can grab the sheet material and make the sheet material leave the conveying mechanism 2. The double-station material picking mechanism drives the sheet material to move. When the sheet material passes through the lower visual detector 4, a line scan of the bottom surface of the sheet material can be performed during the movement of the sheet material to check whether there is any problem with the bottom surface of the sheet material. After completing the inspection of the lower visual detector 4, the double-station material picking mechanism puts the sheet material back into the conveying mechanism 2, and the conveying mechanism 2 continues to transport the sheet material. When the sheet material passes through the inspection area of ​​the upper visual detector 3, the upper visual detector 3 performs a line scan on the top surface of the sheet material to determine whether there is any problem with the top surface of the sheet material. When both surfaces of the sheet material are inspected, it can be determined whether there is a problem with the sheet material, and then the sheet material can be sorted into good and defective products. In this embodiment, since the visual detector is a line scanning camera, the sheet material does not need to stop at a fixed point when scanning. It is sufficient to make the double-station material picking mechanism and the conveying mechanism 2 move at a constant speed. Therefore, the efficiency of detection can be improved, and there is no need to set the fixed-point detection function. The functional control of the control system can be simpler and more practical.

[0041] like Figure 3 and Figure 4 As shown in FIG. 1 , the positions of the upper visual detector 3 and the lower visual detector 4 of this embodiment are shown. The bottom surface of the sheet is first inspected, and then the sheet is placed back on the conveyor mechanism 2. After inspection by the upper visual detector 3, the sheet can be conveyed to the next station. Specifically, the conveyor mechanism 2 can be composed of two conveyor belts, which are spaced apart to form an inspection aisle 5 for the lower visual detector 4. Figure 4 As shown, the actual sheet material can also be inspected by the lower visual detector 4 when it moves between the two conveyor belts, but in order to avoid being blocked by the conveyor belt, this embodiment sets a double-station material picking mechanism. When the sheet material moves close to the detection aisle 5, the double-station material picking mechanism lifts the sheet material so that the sheet material is at a certain distance from the surface of the conveyor belt. Therefore, the detection angle of the lower visual detector 4 can be increased, and the scanning and detection work can be performed more accurately. Here, the double-station material picking mechanism only needs to lift the sheet material before the sheet material passes through the detection channel. No precise sensing data is required, so it does not increase the control difficulty of the control system. After the sheet material has completely passed through the detection channel, the double-station material picking mechanism places the sheet material on the conveyor mechanism 2, and the conveyor mechanism 2 continues to convey the sheet material. When passing under the upper visual detector 3, the upper visual detector 3 can perform scanning and detection work on the upper surface of the sheet material. No other actions need to be performed on the sheet material. That is, the sheet material can be inspected on the upper surface during the process of moving to the next station, effectively improving the inspection and production work of the sheet material.

[0042] In order to make the detection of the upper visual detector 3 and the lower visual detector 4 more accurate, the detection mechanism of this embodiment further provides an illumination component, such as Figure 3 and Figure 4 As shown, the lighting assembly includes an angle adjustment bracket and a light source 6, the angle adjustment bracket is installed on the frame 1, and the angle adjustment bracket is used to adjust the lighting angle of the light source 6; optionally, the angle adjustment bracket includes a fixing member 7 and an adjusting member 8, the fixing member 7 is installed on the bracket, the fixing member 7 is provided with an arc hole 9, one end of the adjusting member 8 is fixed to the light source 6, and the other end of the adjusting member 8 is provided with a connecting hole 10, and the connecting hole 10 is locked at different positions of the arc hole 9 by screws to change the installation angle between the adjusting member 8 and the fixing member 7.

[0043] Specifically, if Figure 4 As shown, both ends of the light source 6 are locked with the adjusting member 8 by screws and other parts, and one end of the fixing member 7 is locked to the frame 1 by screws and other parts. The other end of the fixing member 7 is provided with a docking hole, and the adjusting member 8 is provided with a connecting hole 10. There are two connecting holes 10, one of which is connected to the docking hole by screws and other common parts, and the other is connected to the arc hole 9. Therefore, when adjusting the angle of the light source 6, it is only necessary to loosen the connection between the other connecting hole 10 and the arc hole 9, rotate the adjusting member 8 to the target position with the docking hole as the center, and then lock the corresponding position of the connecting hole 10 and the arc hole 9 by screws. The adjusting member 8 drives the light source 6 to rotate, thereby achieving the purpose of angle adjustment. This embodiment can firstly increase the illumination of the upper visual detector 3 and the lower visual detector 4 by the light source 6, ensuring sufficient light and improving detection accuracy; secondly, the lighting angle of the light source 6 can be adjusted by the angle adjustment bracket, which can meet different lighting needs and has higher flexibility.

[0044] like Figure 1 、 Figure 2 、 Figures 5 to 8 As shown, the double-station material picking mechanism provided in this embodiment includes an x-drive unit, two sets of material picking components and two guide rails 11. The material picking components include a material picking unit 12, a y-drive unit 13 and a z-drive unit 14. The guide rail 11 is installed on the frame 1 and is located above the conveying mechanism 2. The x-drive unit is used to drive the material picking unit 12 to move along the guide rail 11, the y-drive unit 13 is used to drive the material picking unit 12 to move up and down, and the z-drive unit 14 is used to drive the material picking unit 12 to move radially along the guide rail 11. The material picking unit 12 is used to drive the sheet material to move so that the visual detector can detect the sheet material.

[0045] Specifically, if Figure 5, setting up two groups of material picking units 12 can improve production efficiency. When one material picking unit 12 is driving the sheet material for inspection, the other material picking unit 12 can be moved to the front end to pick up the material. When the previous sheet material is completed, the inspection of the next sheet material can be continued to maintain uninterrupted inspection, thereby improving the inspection efficiency.

[0046] Among them, the x driving unit, the y driving unit 13 and the z driving unit 14 respectively control the moving route of the material taking unit 12 from three directions to prevent the two material taking units 12 from affecting each other. Figure 6 As shown, the x drive unit includes an x ​​slide 15 and an x ​​driver 16. The x slide 15 is slidably assembled on the guide rail 11. The x driver 16 is used to drive the x slide 15 to move on the guide rail 11. The y drive unit 13 is mounted on the x slide 15, and the z drive unit 14 is mounted on the y drive unit 13; the y drive unit 13 includes a y slide 17, a y slide 18 and a y driver 19. The y slide 17 is mounted on the x drive unit, and the y slide 18 is slidably mounted on the y slide 17. The y slide 17 is arranged perpendicular to the guide rail 11, and the y driver 19 is used to drive the y slide 18 to move on the y slide 17; the z drive unit 14 includes a z slide 20, a z slide 21 and a z driver 22. The z slide 20 is mounted on the y drive unit 13, the material picking unit 12 is mounted on the z slide 21, the z slide 21 is slidably mounted on the z slide 20, and the z driver 22 is used to drive the z slide 21 to move on the z slide 20. The x-driver 16 , the y-driver 19 , and the z-driver 22 are all conventional technologies, such as screw drive, synchronous belt 24 transmission, cylinder drive, etc., which will not be described in detail here.

[0047] Specifically, the frame 1 is equipped with a fixing frame 23, and the two guide rails 11 are symmetrically arranged on both sides of the fixing frame 23. Figure 5In the direction shown, the x drive unit is started, and the x driver 16 works to make the x slide 15 move along the guide rail 11. The x slide 15 drives the y drive unit 13, the z drive unit 14 and the material picking unit 12 to move along the guide rail 11 together, thereby achieving the purpose of controlling the material picking unit 12 to move along the guide rail 11; the y drive unit 13 is started, and the y driver 19 drives the y slide 18 to move up and down along the y slide rail 17, so that the y slide 18 drives the z drive unit 14 and the material picking unit 12 to move up and down, thereby achieving the purpose of lifting and lowering material picking and unloading; the z drive unit 14 is started, and the z driver 22 drives the z slide 21 to move along the z slide rail 20, thereby driving the material picking unit 12 to move along the radial direction of the guide rail 11, thereby achieving the purpose of avoiding position between the two material picking units 12, and the two material picking units 12 can move back and forth to pick up and unload materials without affecting each other's movement routes. Preferably, the x-driver 16 of this embodiment adopts a servo motor to drive the synchronous belt 24 for transmission, and the x-slide 15 is slidably set on the guide rail 11 and is also fixed to the synchronous belt 24. Therefore, the movement of the synchronous belt 24 can drive the x-slide 15 to move on the guide rail 11. One synchronous belt 24 can drive two x-slides 15 to move. The x-slides 15 are set on two guide rails 11. Therefore, when one x-slide 15 moves in one direction, the other x-slide 15 will move in the opposite direction. The y-driver 19 and the z-driver 22 preferably adopt cylinders to realize the control of movement. Therefore, this embodiment only needs to set up a servo motor to control the action of the two material-picking units 12. Compared with the existing technology of controlling the operation of the two material-picking units 12 by two motors or two sets of manipulators, this embodiment is relatively easier to control, has a simpler structure, and has higher synchronization.

[0048] like Figure 8 The material taking unit 12 of this embodiment adopts a suction cup to suck the sheet material to realize material taking and placing. The structure of the suction cup is prior art and will not be described in detail in this embodiment.

[0049] The high-efficiency sheet metal movement detection device provided in this embodiment uses a line scanning visual detector to detect sheet metal, and can perform detection while the sheet metal keeps moving at a uniform speed. There is no need to control the sheet metal for fixed-point detection, thereby improving detection efficiency and reducing the control difficulty of the control system, thereby reducing the control cost of the system; in addition, there is no need to stop the transmission of the sheet metal, so the operating speed of the production line can be kept constant, which helps to improve the overall production efficiency.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Although the present invention is disclosed as above in terms of preferred embodiments, they are not intended to limit the present invention. Any technician familiar with the profession can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical content disclosed above. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention, which do not depart from the content of the technical solution of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. A high-efficiency sheet material movement detection device, comprising a frame, characterized in that: The machine also includes a double-station material-taking mechanism, a detection mechanism, and a conveying mechanism, all of which are mounted on the frame. The conveying mechanism is used to convey the sheet material. The detection mechanism includes an upper visual detector and a lower visual detector, and both the upper visual detector and the lower visual detector are line scan cameras. The upper visual detector is located above the sheet material, and the lower visual detector is located below the sheet material; The double-station material-taking mechanism is used to drive the sheet material to move so that the lower visual detector detects the bottom surface of the sheet material; The conveying mechanism drives the plate to move so that the upper visual detector detects the top surface of the plate.

2. The high-efficiency sheet material movement detection device according to claim 1, characterized in that: The conveying mechanism is provided with an inspection aisle, and the inspection viewing angle of the lower visual detector is located below the inspection aisle. When the sheet material passes through the inspection aisle, the lower visual detector is used to inspect the bottom surface of the sheet material.

3. The high-efficiency sheet material movement detection device according to claim 1, characterized in that: The detection mechanism further includes a lighting component, which is used to provide lighting for the visual detector during the detection process.

4. The high-efficiency sheet material movement detection device according to claim 3, characterized in that: The lighting assembly includes an angle adjustment bracket and a light source. The angle adjustment bracket is installed on a frame and is used to adjust the lighting angle of the light source.

5. The high-efficiency sheet material movement detection device according to claim 4, characterized in that: The angle adjustment bracket includes a fixing part and an adjusting part. The fixing part is installed on the bracket. The fixing part is provided with an arc-shaped hole. One end of the adjusting part is fixed to the light source. The other end of the adjusting part is provided with a connecting hole. The connecting hole is locked at different positions of the arc-shaped hole by a screw to change the installation angle between the adjusting part and the fixing part.

6. The high-efficiency sheet material movement detection device according to claim 1, characterized in that: The double-station material picking mechanism includes an x-drive unit, two sets of material picking components and two guide rails. The material picking components include a material picking unit, a y-drive unit and a z-drive unit. The guide rails are installed on the frame and located above the conveying mechanism. The x-drive unit is used to drive the material picking unit to move along the guide rails. The y-drive unit is used to drive the material picking unit to move up and down. The z-drive unit is used to drive the material picking unit to move radially along the guide rails. The material picking unit is used to drive the sheet material to move so that the visual detector can detect the sheet material.

7. The high-efficiency sheet material movement detection device according to claim 6, characterized in that: The x drive unit includes an x ​​slide and an x ​​driver. The x slide is slidably mounted on the guide rail. The x driver is used to drive the x slide to move on the guide rail. The y drive unit is mounted on the x slide, and the z drive unit is mounted on the y drive unit.

8. The high-efficiency sheet material movement detection device according to claim 6, characterized in that: The y drive unit includes a y slide rail, a y slide and a y driver. The y slide rail is installed on the x drive unit. The y slide is slidably installed on the y slide rail. The y slide rail is arranged perpendicular to the guide rail. The y driver is used to drive the y slide to move on the y slide rail.

9. The high-efficiency sheet material movement detection device according to claim 6, characterized in that: The z drive unit includes a z slide rail, a z slide and a z driver. The z slide rail is installed on the y drive unit, the material picking unit is installed on the z slide, the z slide is slidably installed on the z slide rail, and the z driver is used to drive the z slide to move on the z slide rail.

10. The high-efficiency sheet material movement detection device according to claim 6, characterized in that: The frame is equipped with a fixing frame, and the two guide rails are symmetrically arranged on both sides of the fixing frame.

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