Artificial board visual on-line detection device

Abstract

The invention provides an artificial board visual online detection device which comprises a first base, a second base, a third base and a control module, the first base and the third base are arranged on the left side and the right side of the second base respectively, and dust covers are arranged on the first base and the third base; conveying modules are arranged in the dustproof covers of the first base and the third base correspondingly, through openings are formed in the two ends of the dustproof covers correspondingly, a visual detection box is arranged on the second base, and first detection openings are formed in the middles of the left side surface and the right side surface of the visual detection box correspondingly. The first detection port and the conveying surface of the conveying module are arranged on the same horizontal plane, and the conveying module and the visual detection box are electrically connected with the control module; the artificial board is detected through the visual detection box on the first base, surface defects of the artificial board can be effectively detected through dust covers on the first base and the third base conveying module, and interference of external flying dust on the detection process can be prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of surface detection of wood-based panels, and particularly to a visual on-line detection device for wood-based panels. Background Art

[0002] With the wide application of wood-based panels in the fields of building decoration, furniture manufacturing, etc., the requirements for the quality of wood-based panels are getting higher and higher. During the production and manufacturing process of wood-based panels, various defects are likely to occur on the surface, such as glue spots, scratches, chipped edges, etc. Therefore, it is necessary to detect the surface of the processed wood-based panels to ensure product quality.

[0003] At present, the industry mainly relies on manual visual inspection or high-definition image acquisition to detect defects on the surface of the boards. However, manual inspection is limited by poor subjective experience, and the work efficiency will gradually decline; the existing high-definition image acquisition devices can only collect images of one side of the board, and manual turning is required. Moreover, the device lacks the layout of lights and cannot irradiate the surface of the wood-based panel from various angles. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a visual on-line detection device for wood-based panels to solve at least the above problems.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A visual on-line detection device for wood-based panels includes a first base, a second base, a third base, and a control module. The first base and the third base are respectively arranged on the left and right sides of the second base. Dust-proof covers are arranged on both the first base and the third base, and conveyor modules are arranged inside the dust-proof covers of the first base and the third base. Through openings are arranged at both ends of the dust-proof cover. A visual detection box is arranged on the second base. First detection ports are arranged in the middle of the left and right side surfaces of the visual detection box. The conveying surfaces of the first detection ports and the conveyor module are on the same horizontal plane. The conveyor module and the visual detection box are both electrically connected to the control module.

[0007] Furthermore, a light box is arranged in the middle inside the visual detection box body. The light box is in the shape of a capsule. A second detection port is arranged in the length direction of the light box. The second detection port is aligned with the first detection port. A light-emitting module is arranged on the inner surface of the light box. The light-emitting module is electrically connected to the control module.

[0008] Furthermore, the light-emitting module includes a first light and a second light. The first light irradiates direct light, and the second light irradiates diffuse reflection light. The first light and the second light are alternately arranged on the inner surface of the light box. The first light and the second light are both electrically connected to the control module.

[0009] Further, industrial cameras are provided above and below the inner surface of the light box. An infrared sensor is provided at the second detection port of the light box close to the first base, and distance sensors are evenly arranged above. The industrial cameras, the infrared sensor, and the distance sensors are all electrically connected to the control module.

[0010] Further, the conveying module includes a conveying device and a speed measuring sensor. The speed measuring sensor is used to measure the conveying speed of the conveying device. The conveying device and the speed measuring sensor are both electrically connected to the control module.

[0011] Further, a rubber strip is provided at the opening of the dust-proof cover close to the vision detection box.

[0012] Further, a blower is provided at the opening of the dust-proof cover on the third base away from the vision detection box. The air of the blower passes through the dust-proof cover towards the vision detection box. A detachable dust-proof net is arranged outside the blower. The blower is electrically connected to the control module.

[0013] Further, a cleaning roller is provided at the opening of the dust-proof cover on the first base away from the vision detection box. Cleaning filaments are provided on the cleaning roller. A dust-proof strip is arranged below the dust-proof net. The dust-proof strip is made of rubber and covers the opening below the dust-proof net.

[0014] Further, a buckle is rotatably connected to the side surfaces of the first base and the third base close to the second base. Blocks are arranged at both ends of the side surface of the second base close to the first base and the third base. The first base and the second base, and the second base and the third base are connected by the buckles and blocks on the side surfaces.

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

[0016] The present invention provides an artificial board vision on-line detection device. The dust-proof covers on the first base and the third base can prevent interference caused by attachments on the board and external dust during the detection process. Through the lighting module of the light box in the vision detection box, the artificial board can be irradiated from multiple angles and in multiple modes, which is convenient for the camera to capture surface defects of the artificial board. By setting the detection device into three parts: the first base, the second base, and the third base, the installation and disassembly of the device are facilitated, and the portability in use is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the drawings in the following description are only the preferred embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 This is a schematic diagram of the overall structure of an on-line visual inspection device for wood-based panels provided by the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the first base of an on-line visual inspection device for wood-based panels provided by the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the second base of an on-line visual inspection device for wood-based panels provided by the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the visual inspection box of an on-line visual inspection device for wood-based panels provided by the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the second inspection port on the light box of an on-line visual inspection device for wood-based panels provided by the present invention.

[0023] Explanation of the reference numerals in the drawings:

[0024] 1. First base; 2. Second base; 3. Third base; 4. Dust-proof cover; 41. Through port; 42. Fan; 43. Dust-proof net; 44. Cleaning roller; 45. Dust-proof strip; 46. Rubber strip; 5. Conveying device; 6. Visual inspection box; 61. First inspection port; 62. Light box; 621. Second inspection port; 622. First light; 623. Second light; 624. Industrial camera; 625. Infrared sensor; 626. Distance sensor; 7. Buckle; 8. Block. Detailed implementation manners

[0025] The principles and features of the present invention will be described below with reference to the accompanying drawings. The listed embodiments are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0026] Embodiment 1

[0027] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5, the present invention provides an artificial board visual on-line detection device, including a first base 1, a second base 2, a third base 3 and a control module. The first base 1 and the third base 3 are respectively arranged on the left and right sides of the second base 2. Dust-proof covers 4 are arranged on both the first base 1 and the third base 3, and conveying modules are arranged inside the dust-proof covers 4 of the first base 1 and the third base 3. Both ends of the dust-proof cover 4 are provided with through openings 41. A visual detection box 6 is arranged on the second base 2. First detection openings 61 are arranged in the middle of the left and right side surfaces of the visual detection box 6. The first detection openings 61 and the conveying surfaces of the conveying modules are arranged on the same horizontal plane. Both the conveying module and the visual detection box 6 are electrically connected to the control module.

[0028] Exemplarily, one ends of the dust-proof covers 4 on the first base 1 and the third base 3 close to the visual detection box 6 are in contact connection with the visual detection box 6. Through the dust-proof covers 4, the conveying modules can be isolated from the outside world, avoiding interference of the detection by external dust.

[0029] The artificial board enters through the through opening 41 on the dust-proof cover 4 of the first base 1, and the artificial board is conveyed to the visual detection box 6 on the second base 2 through the conveying module for defect detection of the artificial board. The artificial board enters through the first detection opening 61 on the visual detection box 6 close to the first base 1; after the artificial board enters the visual detection box 6 for detection, it exits through the first detection opening 61 on the visual detection box 6 close to the third base 3 and enters the conveying module on the third base 3. The conveying module on the third base 3 conveys the artificial board away from the visual detection box 6.

[0030] The first detection openings 61 and the conveying surfaces of the conveying modules are arranged on the same horizontal plane. At this time, when the artificial board moves to the end of the conveying module, it can just enter the first detection openings 61, which is beneficial for the conveying module to send the artificial board into the visual detection box 6 through the first detection openings 61.

[0031] A lighting box 62 is arranged in the middle of the interior of the visual detection box 6. The lighting box 62 is in a capsule shape and its width is less than half of the length of the artificial board. A second detection opening 621 is arranged in the length direction of the lighting box 62. The second detection opening 621 is arranged in alignment with the first detection opening 61. A lighting module is arranged on the inner surface of the lighting box 62. The lighting module is electrically connected to the control module.

[0032] The lighting module includes a first lighting lamp 622 and a second lighting lamp 623. The first lighting lamp 622 emits direct light, and the second lighting lamp 623 emits diffuse reflection light. The first lighting lamp 622 and the second lighting lamp 623 are alternately arranged on the inner surface of the lighting box 62. Both the first lighting lamp 622 and the second lighting lamp 623 are electrically connected to the control module.

[0033] Exemplarily, the light box 62 is set in a capsule shape, and the first light-emitting lamps 622 and the second light-emitting lamps 623 are evenly arranged on the inner wall. The light-emitting lamps are arranged along the arc-shaped inner wall of the light box 62, and the angles of the light-emitting lamps in each row are different, enabling the light-emitting lamps to irradiate the wood-based panel from different angles; the light rays emitted by the first light-emitting lamps 622 and the second light-emitting lamps 623 are direct light and diffuse reflected light respectively, and different light-emitting lamps can be selected for irradiation according to different situations;

[0034] The lighting module can be controlled by the control module to set different lighting modes. For example, only the first light-emitting lamp 622 is turned on for irradiation, only the second light-emitting lamp 623 is turned on for irradiation, or lighting is performed in a specific direction, etc. The wood-based panel can be detected specifically through different lighting modes. After the wood-based panel enters through the first detection port 61 on the vision detection box 6, it then enters the light box 62 through the second detection port 621 on the light box 62, and finally exits through the second detection port 621 on the other side of the light box 62 and the first detection port 61 on the other side of the vision detection box 6.

[0035] Industrial cameras 624 are arranged directly above and directly below the inner surface of the light box 62. An infrared sensor 625 is arranged at the second detection port 621 of the light box 62 close to the first base 1, and distance sensors 626 are evenly arranged above it. The industrial cameras 624, the infrared sensor 625, and the distance sensors 626 are all electrically connected to the control module.

[0036] The conveying module includes a conveying device 5 and a speed measurement sensor. The speed measurement sensor is used to measure the conveying speed of the conveying device 5. The conveying device 5 and the speed measurement sensor are both electrically connected to the control module.

[0037] Exemplarily, after the wood-based panel enters the second detection port 621, after the infrared sensor 625 senses the entry of the wood-based panel, the control module controls the lighting module, the industrial cameras 624, and the distance sensors 626 in the light box 62 to start.

[0038] The distance sensors 626 are evenly distributed above the second detection port 621 to detect the thickness of the wood-based panel. Each time the wood-based panel moves a certain distance, a detection is performed. By extending the conveying plane below the distance sensors 626, the distance from the conveying plane to the distance sensors 626 is the initial distance, and the distance measured by the distance sensors 626 to the wood-based panel is the measured distance. The thickness of the wood-based panel is obtained by subtracting the measured distance from the initial distance. The control module uses the data of multiple distance sensors 626 and the data of multiple measurements for mutual comparison to eliminate the errors generated during the conveying process;

[0039] The speed measurement sensor detects the conveying speed of the conveying device 5 to obtain the conveying speed of the artificial board, and sends it to the control module; when the front end of the artificial board moves from the second detection port 621 of the light box 62 to the second detection port 621 at the other end, the control module calculates the time T required for the artificial board to move this distance according to the conveying speed of the artificial board, and takes a picture of the artificial board image at the T moment after the infrared sensor 625 is triggered by the artificial board. At this time, the front end of the artificial board just moves from the second detection port 621 at one end of the light box 62 to the second detection port 621 at the other end, and a picture is taken every T moment. When the infrared sensor 625 detects that the end of the artificial board enters the light box 62, the next picture taken is the last picture of the current artificial board. The control module stitches the multiple pictures taken into one picture. Dividing the artificial board into multiple segments for shooting and then stitching can reduce the volume of the shooting device.

[0040] Embodiment 2

[0041] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 On the basis of the foregoing embodiments, the difference between this embodiment and the foregoing embodiments is that:

[0042] A rubber strip 46 is provided on the through port 41 at the end of the dust cover 4 close to the vision inspection box 6.

[0043] A blower 42 is provided on the through port 41 at the end of the dust cover 4 on the third base 3 away from the vision inspection box 6. The air of the blower 42 passes through the dust cover 4 and faces the vision inspection box 6. A detachable dust screen 43 is provided outside the blower 42, and the blower 42 is electrically connected to the control module.

[0044] A cleaning roller 44 is provided on the through port 41 at the end of the dust cover 4 on the first base 1 away from the vision inspection box 6. Cleaning filaments are provided on the cleaning roller 44. A dust-proof strip 45 is provided below the dust screen 43. The dust-proof strip 45 is made of rubber and covers the through port 41 below the dust screen 43.

[0045] Exemplarily, by providing a rubber ring on the through port 41 where the dust cover 4 contacts the vision inspection box 6, the gap at the contact position can be reduced to prevent dust from entering;

[0046] When the artificial board enters the conveying module through the through port 41 of the dust cover 4 on the first base 1, the cleaning roller 44 at the through port 41 first cleans the dust on the surface of the artificial board. A large number of soft cleaning filaments are provided on the cleaning roller 44. The rotation of the cleaning roller 44 drives the cleaning filaments to remove the impurities on the surface of the artificial board;

[0047] The wind blown by the blower 42 inside the dust cover 4 on the third base 3 passes through the dust cover 4 on the third base 3, passes through the vision inspection box 6 and the dust cover 4 on the first base 1, and can blow out the impurities inside the dust cover 4 and prevent impurities from entering the dust cover 4 through the artificial board;

[0048] The dust screen 43 on the dust cover 4 is arranged in the upper half of the through - opening 41 at the blower 42, and a dust - proof strip 45 is arranged in the lower half. The through - opening 41 at the blower 42 is completely covered by the dust screen 43 and the dust - proof strip 45; when the blower 42 works, the outside wind enters the dust cover 4 through the dust screen 43, separates the dust and floating dust of the outside impurities, and prevents the outside impurities and floating dust from being inhaled into the dust cover 4 through the blower 42 and affecting the detection; the dust - proof strip 45 completely covers the through - opening 41 below the dust screen 43, preventing the negative pressure generated by the gas flow inside the dust cover 4 when the blower 42 starts from sucking in the floating dust through the through - opening 41 below the dust screen 43; when the artificial board is detected and passes through the through - opening 41 on the third base 3, the artificial board will push up the dust - proof strip 45 and be conveyed out of the dust cover 4 through the lower part of the through - opening 41.

[0049] Clasps 7 are rotatably connected to the sides of the first base 1 and the third base 3 close to the second base 2, and blocks 8 are arranged at both ends of the side of the second base 2 close to the first base 1 and the third base 3. The first base 1 and the second base 2, and the second base 2 and the third base 3 are connected by the clasps 7 and blocks 8 on the sides.

[0050] Exemplarily, dividing the whole device into three parts: the first base 1, the second base 2, and the third base 3 can facilitate the installation and movement of the device. When installing the device, the clasps 7 on the first base 1 and the third base 3 are buckled into the blocks 8 on the second base 2, which can stabilize the device during the detection process of the device and avoid the influence on the detection caused by improper installation.

[0051] It should be noted that the first floodlight 622, the second floodlight 623, the industrial camera 624, the infrared sensor 625, the distance sensor 626, the conveying device 5, the speed sensor, the blower 42, the control module and other components used in this application are all existing electronic components in the art. Those skilled in the art can obtain and understand the circuit structures of the first floodlight 622, the second floodlight 623, the industrial camera 624, the infrared sensor 625, the distance sensor 626, the conveying device 5, the speed sensor, the blower 42, the control module and other electronic components and the circuit connection structures between them according to the existing public technical knowledge and technical materials. The embodiments of this application will not elaborate on this specifically, and those skilled in the art can freely select the corresponding models according to needs. This embodiment does not make specific limitations here.

[0052] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An artificial board visual on-line detection device, characterized in that It includes a first base, a second base, a third base and a control module. The first base and the third base are respectively arranged on the left and right sides of the second base. Dust covers are arranged on both the first base and the third base, and conveying modules are arranged inside the dust covers of the first base and the third base. Through openings are arranged at both ends of the dust cover. A vision detection box is arranged on the second base. First detection ports are arranged in the middle of the left and right side surfaces of the vision detection box. The first detection ports and the conveying surfaces of the conveying modules are arranged on the same horizontal plane. The conveying modules and the vision detection box are both electrically connected to the control module.

2. The visual on-line inspection device for wood-based panels according to claim 1, characterized in that, A lighting box is arranged in the middle inside the vision detection box body. The lighting box is in the shape of a capsule. A second detection port is arranged in the length direction of the lighting box. The second detection port is arranged in alignment with the first detection port. A lighting module is arranged on the inner surface of the lighting box. The lighting module is electrically connected to the control module.

3. An artificial board visual on-line detection device according to claim 2, characterized in that, The lighting module includes a first lighting lamp and a second lighting lamp. The first lighting lamp irradiates direct light, and the second lighting lamp irradiates diffuse reflection light. The first lighting lamp and the second lighting lamp are alternately arranged on the inner surface of the lighting box. The first lighting lamp and the second lighting lamp are both electrically connected to the control module.

4. An artificial board visual on-line detection device according to claim 3, characterized in that, Industrial cameras are arranged directly above and directly below the inner surface of the lighting box. An infrared sensor is arranged at the second detection port of the lighting box close to the first base, and distance sensors are evenly arranged above. The industrial cameras, the infrared sensor and the distance sensors are all electrically connected to the control module.

5. The visual on-line inspection device for wood-based panels according to claim 4, characterized in that, The conveying module includes a conveying device and a speed measurement sensor. The speed measurement sensor is used to measure the conveying speed of the conveying device. The conveying device and the speed measurement sensor are both electrically connected to the control module.

6. The visual on-line inspection device for wood-based panels according to claim 1, characterized in that, A rubber strip is arranged on the through opening at one end of the dust cover close to the vision detection box.

7. An artificial board visual on-line detection device according to claim 1, characterized in that, A blower is arranged on the through opening at the end of the dust cover on the third base far from the vision detection box. The air of the blower passes through the dust cover towards the vision detection box. A detachable dust screen is arranged outside the blower. The blower is electrically connected to the control module.

8. An on-line visual inspection device for wood-based panels according to claim 7, characterized in that A cleaning roller is arranged on the through opening at the end of the dust cover on the first base far from the vision detection box. Cleaning wires are arranged on the cleaning roller. A dust-proof strip is arranged below the dust screen. The dust-proof strip is made of rubber and covers the through opening below the dust screen.

9. The visual on-line inspection device for wood-based panels according to claim 1, wherein Clasps are rotatably connected to the sides of the first base and the third base close to the second base. Blocks are arranged at both ends of the side of the second base close to the first base and the third base. The first base and the second base, and the second base and the third base are connected by the clasps and blocks on the sides.

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