Wood surface defect detection equipment and detection system

Abstract

The invention relates to the technical field of surface defect detection, in particular to wood surface defect detection equipment and a wood surface defect detection system, which comprise a base, a bracket, two clamping units, an image processing component, a plurality of industrial cameras, an abutting adjusting unit, two burr detection units and a detection assembly, the detection assembly comprises an abutting wheel, a plurality of pressure sensors and a burr detection rope, when the abutting wheel moves upwards or downwards, the wood is uneven, the pressure sensors in linkage with the abutting wheel can be triggered, and the uneven degree can be judged according to changes of the pressure sensors; after the burr detection rope is in contact with burrs, the burr detection rope is hooked, and the burr detection rope triggers the pressure sensor linked with the burr detection rope; therefore, targeted surface defect detection can be carried out on the wood, then the defect area is independently shot, then defect images can be accurately shot, and redundant good pictures are prevented from being shot.

Description

Technical Field

[0001] The invention relates to the technical field of surface defect detection, and in particular to a wood surface defect detection device and a detection system. Background Art

[0002] In order to ensure the qualified rate of wood during wood processing and production, it is necessary to inspect the surface of the wood for defects and observe whether there are bumps, wear and burrs. However, the traditional method is to observe the defects on the surface of the wood with the naked eye, which is easy to miss and consumes a lot of manual energy.

[0003] In the prior art, a base is provided, wood is placed on the base, and then a movable industrial camera is installed to take all-round pictures of the wood surface. The pictures taken are then transmitted to a computer for graphic processing to analyze whether there are any defects.

[0004] However, in the aforementioned prior art, when photographing the wood surface by an industrial camera, in order to fully detect defects, the wood must be photographed in all directions, so the photographed photos and videos are usually large in number; however, not every defect exists on the wood surface, and most of the photographed images are good images. The good images and defective images are transmitted to the computer for calculation together, which increases the pressure of graphics processing and ultimately reduces the efficiency of surface defect detection. Summary of the invention

[0005] The purpose of the present invention is to provide a wood surface defect detection device and a detection system to solve the problem in the prior art that when an industrial camera is used to photograph the wood surface, in order to comprehensively detect defects, the wood must be photographed in all directions, so the photographed photos and videos are usually large; however, not every defect exists on the wood surface, and most of the photographed pictures are good pictures. The good pictures and defect pictures are transmitted to the computer for calculation together, which increases the pressure of graphics processing and ultimately reduces the efficiency of surface defect detection.

[0006] To achieve the above-mentioned purpose, the present invention provides a wood surface defect detection device, comprising a base, a bracket, two clamping units, an image processing component, a plurality of industrial cameras, a holding adjustment unit, two burr detection units and a detection assembly, wherein the bracket is arranged above the base, the two clamping units are symmetrically arranged above the base, the image processing component is arranged above the base, the holding adjustment unit and the two burr detection units are arranged on the bracket in sequence, the plurality of industrial cameras are respectively arranged on the holding adjustment unit and the two burr detection units, and wood is clamped between the two clamping units;

[0007] The detection component includes a supporting wheel, a plurality of pressure sensors and a burr detection rope, the supporting wheel is arranged on the supporting adjustment unit, the plurality of pressure sensors are respectively arranged in the supporting adjustment unit and the two burr detection units, and the burr detection rope is arranged between the two burr detection units.

[0008] Wherein, the clamping unit includes a supporting block, a rotating component, a clamping component and a clamping plate, the two ends of the supporting block are respectively fixedly connected to the top of the base and the bottom of the rotating component, the output end of the rotating component is fixedly connected to the clamping component, the output end of the clamping component is fixedly connected to the clamping plate, and the wood is clamped between the two clamping plates.

[0009] In which, the supporting adjustment unit includes a first transverse component, a first lifting component, a first shell, a U-shaped plate, two sliders, two first springs and a supporting mechanism, the first transverse component is arranged on the inner top wall of the bracket, the first lifting component is arranged on the output end of the first transverse component, the first shell is arranged on the output end of the first lifting component, the U-shaped plate is arranged inside the first shell, the supporting wheel is rotatably connected to the U-shaped plate, the first shell has two slide grooves, the two sliders are respectively slidably connected to the corresponding slide grooves, one end of the two sliders are fixedly connected to the top of the U-shaped plate, the two ends of the two first springs are respectively fixedly connected to the inner wall of the corresponding slide groove and the slider, the supporting mechanism is arranged inside the first shell, and the industrial camera is arranged on both sides of the first shell.

[0010] Wherein, the supporting mechanism includes a supporting groove, a sliding rod and a plurality of resilient components. The supporting groove is arranged inside the first shell, the sliding rod is slidably connected to the supporting groove, and the plurality of resilient components are sequentially arranged inside the supporting groove.

[0011] Wherein, the rebound component includes a push block, a first rubber block and a second spring, the support groove has a groove, the push block is slidably connected to the groove, the first rubber block is arranged at one end of the push block, the pressure sensor is arranged inside the groove, and the two ends of the second spring are respectively movably connected to the inner wall of the groove and one end of the push block.

[0012] Among them, the burr detection unit includes a second transverse component, a second lifting component, a second shell, a connecting plate, a T-shaped support block, two pull rods, two second rubber blocks and two third springs, the second transverse component is arranged on the inner top wall of the bracket, the output end of the second transverse component is fixedly connected to the second lifting component, the output end of the second lifting component is fixedly connected to the second shell, the second shell and the connecting plate and the second shell are adapted to each other, the T-shaped support block is arranged on the inner wall of the second shell, two pressure sensors are arranged on the T-shaped support block, one end of the two pull rods are fixedly connected to the connecting plate, the other ends of the two pull rods are respectively fixedly connected to the corresponding second rubber blocks, the two ends of the two third springs are respectively movably connected to the pull rod and the inner wall of the second shell, and the two ends of the burr detection rope are respectively fixedly connected to the corresponding connecting plate.

[0013] Wherein, the detection assembly further comprises a wood lifting unit, and the wood lifting unit is arranged above the base;

[0014] The wood lifting unit comprises a plurality of third lifting components and placement grooves. The plurality of third lifting components are sequentially arranged above the base, and the output ends of the plurality of third lifting components are fixedly connected to the placement grooves.

[0015] The present invention also provides a wood surface defect detection system, comprising the above-mentioned wood surface defect detection equipment, and also comprising a wood surface cleaning device, a wood loading and unloading device and a wood defect display device, wherein the wood surface cleaning device is arranged on one side of the wood loading and unloading device, the wood loading and unloading device is arranged on one side of the wood surface defect detection device, and the wood defect display device is arranged on the other side of the wood defect detection device.

[0016] The wood surface defect detection device and detection system of the present invention clamps and fixes the wood by two clamping units, and then the abutment adjustment unit drives the abutment wheel to abut against the wood surface and move. When the abutment wheel moves up or down, it indicates that the wood is uneven, and at the same time, it triggers the pressure sensor linked to it. The degree of the unevenness can be judged according to the change of the pressure sensor. At the same time, the burr detection unit drives the burr detection rope to approach the wood surface and move. When the burr detection rope contacts the burr, the burr detection rope will be hooked. At this time, the burr detection rope triggers the pressure sensor linked to it. Through the pressure sensor and the image processing The components are electrically connected to transmit the pressure change data to the image processing component for display, and the industrial camera is controlled to move to the area where burrs and unevenness are detected to take pictures, and finally the image is transmitted to the image processing component, and the built-in graphics processing software of the image processing component is used for calculation and processing to obtain the wood defect information; through the above-mentioned structural setting, the corresponding pressure sensor is triggered by the abutting wheel and the burr detection rope, so that the surface defect detection of the wood can be carried out in a targeted manner, and then the defective area is photographed separately, so that the defective image can be accurately captured, avoiding the shooting of unnecessary good pictures, reducing the pressure on subsequent image processing, and improving the image processing efficiency during surface defect detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a cross-sectional view of the whole of the present invention.

[0020] Figure 3 The present invention Figure 2 AA line section view.

[0021] Figure 4 The present invention Figure 2 BB line cross-sectional view.

[0022] Figure 5 The present invention Figure 2 Enlarged view of the local structure at location C.

[0023] Figure 6 The present invention Figure 3 Enlarged view of the local structure at D.

[0024] Figure 7 The present invention Figure 4 Enlarged view of the local structure at E.

[0025] Figure 8 It is a principle diagram of the wood surface defect detection system of the present invention.

[0026] 1-base, 2-bracket, 3-image processing component, 4-industrial camera, 5-wood, 6-holding wheel, 7-pressure sensor, 8-burr detection rope, 9-support block, 10-rotating component, 11-clamping component, 12-clamping plate, 13-first transverse component, 14-first lifting component, 15-first shell, 16-U-shaped plate, 17-slider, 18-first spring, 19-slide groove, 20-support groove, 21-slide bar, 22-rebound component, 23-push block, 24-first rubber block, 25-second spring, 26-groove, 27-second transverse component, 28-second lifting component, 29-second shell, 30-connecting plate, 31-T-shaped support block, 32-pull rod, 33-second rubber block, 34-third spring, 35-third lifting component, 36-placement groove, 37-wood surface cleaning device, 38-wood loading and unloading device, 39-wood defect display device. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0028] See also Figures 1 to 7 The present invention provides a wood surface defect detection device, including a base 1, a bracket 2, two clamping units, an image processing component 3, multiple industrial cameras 4, a holding adjustment unit, two burr detection units and a detection component, a wood 5 is clamped between the two clamping units, the detection component includes a holding wheel 6, multiple pressure sensors 7 and a burr detection rope 8, the clamping unit includes a support block 9, a rotating component 10, a clamping component 11 and a clamping plate 12, the holding adjustment unit includes a first transverse component 13, a first lifting component 14, a first shell 15, a U-shaped plate 16, two sliders 17, two first A spring 18 and a supporting mechanism, the supporting mechanism includes a supporting groove 20, a sliding rod 21 and multiple rebound components 22, the rebound component 22 includes a push block 23, a first rubber block 24 and a second spring 25, the supporting groove 20 has a groove 26, the burr detection unit includes a second transverse component 27, a second lifting component 28, a second shell 29, a connecting plate 30, a T-shaped supporting block 31, two pull rods 32, two second rubber blocks 33 and two third springs 34, the detection component also includes a wood 5 lifting unit, the wood 5 lifting unit includes multiple third lifting components 35 and a placement groove 36.

[0029] Among them, the bracket 2 is arranged above the base 1, the two clamping units are symmetrically arranged above the base 1, the image processing component 3 is arranged above the base 1, the abutment adjustment unit and the two burr detection units are arranged on the bracket 2 in sequence, the multiple industrial cameras 4 are respectively arranged on the abutment adjustment unit and the two burr detection units, the wood 5 is clamped between the two clamping units, the abutment wheel 6 is arranged on the abutment adjustment unit, the multiple pressure sensors 7 are respectively arranged in the abutment adjustment unit and the two burr detection units, and the burr detection rope 8 is arranged between the two burr detection units. The wood 5 is clamped and fixed by the two clamping units, and then the abutment adjustment unit drives the abutment wheel 6 to abut the surface of the wood 5 and move it. When the abutment wheel 6 moves up or down, it indicates that the wood 5 is uneven, and at the same time, it will trigger the pressure sensor 7 linked to it. The degree of unevenness can be judged according to the change of the pressure sensor 7; at the same time, the burr detection unit drives the burr detection rope 8 to approach the surface of the wood 5 and move. When the burr detection rope 8 contacts the burr, the burr detection rope 8 will be hooked. At this time, the burr detection rope 8 triggers the pressure sensor 7 linked to it. Through the electrical connection between the pressure sensor 7 and the image processing component 3, the pressure change data is transmitted to the image processing component 3 for display, and at the same time, the industrial camera 4 is controlled to move to the area where the burrs and unevenness are detected for shooting, and finally the image is transmitted to the image processing component 3, and the image is calculated and processed by the built-in graphics processing software of the image processing component 3 to obtain the defect information of the wood 5; the image processing component 3 is a computer.

[0030] Secondly, the two ends of the support block 9 are respectively fixedly connected to the top of the base 1 and the bottom of the rotating component 10, the output end of the rotating component 10 is fixedly connected to the clamping component 11, and the output end of the clamping component 11 is fixedly connected to the clamping plate 12, and the wood 5 is clamped between the two clamping plates 12. The rotating component 10 is a self-locking motor, and the clamping component 11 is a cylinder. When the clamping component 11 is started, it drives the clamping plate 12 to clamp and fix the wood 5. At the same time, after completing the detection of one side, the rotating component 10 is started to rotate and turn the wood 5.

[0031] At the same time, the first transverse component 13 is arranged on the inner top wall of the bracket 2, the first lifting component 14 is arranged at the output end of the first transverse component 13, the first shell 15 is arranged at the output end of the first lifting component 14, the U-shaped plate 16 is arranged inside the first shell 15, the supporting wheel 6 is rotatably connected with the U-shaped plate 16, the first shell 15 has two slide grooves 19, the two sliders 17 are respectively slidably connected with the corresponding slide grooves 19, one end of the two sliders 17 is fixedly connected to the top of the U-shaped plate 16, the two ends of the two first springs 18 are respectively fixedly connected to the inner wall of the corresponding slide groove 19 and the slider 17, the supporting mechanism is arranged inside the first shell 15, and the industrial camera 4 is arranged on both sides of the first shell 15. The first transverse component 13 is an electric slide rail, and the first lifting component 14 is a cylinder; the first transverse component 13 is started to drive the supporting mechanism to move horizontally, and the first lifting component 14 is started to drive the supporting mechanism to move up and down, close to the wood 5, and the first shell 15 supports the supporting mechanism; when the supporting wheel 6 resists the wood 5 and moves, if a depression appears on the surface of the wood 5, the first spring 18 resists the slider 17, thereby driving the U-shaped plate 16 and the supporting wheel 6 to move downward, and then through the linkage of the supporting mechanism, the pressure of the pressure sensor 7 is driven to change, and if a surface bulge appears, the supporting wheel 6 moves upward, and the value of the pressure sensor 7 also changes.

[0032] In addition, the support groove 20 is arranged inside the first housing 15, the slide bar 21 is slidably connected to the support groove 20, and the plurality of resilient components 22 are sequentially arranged inside the support groove 20. The said Chen Chao supports the plurality of resilient components 22, and when unevenness occurs, the abutting wheel 6 moves, so that the slide bar 21 slides in the support groove 20, activating the plurality of resilient components 22, so that the pressure value of the pressure sensor 7 in the resilient component 22 changes.

[0033] Then, the support groove 20 has a groove 26, the push block 23 is slidably connected with the groove 26, the first rubber block 24 is arranged at one end of the push block 23, the pressure sensor 7 is arranged inside the groove 26, and the two ends of the second spring 25 are movably connected with the inner wall of the groove 26 and one end of the push block 23 respectively. When the slide bar 21 moves upward, it contacts the inclined surface of the push block 23, driving the push block 23 to enter the groove 26, and then the push block 23 drives the first rubber pad to contact the pressure sensor 7, the first rubber pad is gradually squeezed, and then continues to push the next push block 23, and then gradually triggers multiple pressure sensors 7; when the slide bar 21 moves downward, the push block 23 is no longer held by the slide bar 21, and under the action of the second spring 25, the push block 23 and the first rubber block 24 are driven to rebound, and then the pressure of the first rubber block 24 squeezing the pressure sensor 7 becomes smaller, and the value of the pressure sensor 7 changes.

[0034] Again, the second cross component 27 is arranged on the inner top wall of the bracket 2, the output end of the second cross component 27 is fixedly connected to the second lifting component 28, the output end of the second lifting component 28 is fixedly connected to the second shell 29, the second shell 29 and the connecting plate 30 are adapted to each other, the T-shaped support block 31 is arranged on the inner wall of the second shell 29, two pressure sensors 7 are arranged on the T-shaped support block 31, one end of the two pull rods 32 are fixedly connected to the connecting plate 30, and the other ends of the two pull rods 32 are respectively fixedly connected to the corresponding second rubber blocks 33, the two ends of the two third springs 34 are respectively movably connected to the pull rods 32 and the inner wall of the second shell 29, and the two ends of the burr detection rope 8 are respectively fixedly connected to the corresponding connecting plate 30. The second transverse component 27 is an electric slide rail, and the second lifting component 28 is a cylinder; the second shell 29 supports and protects the internal components. When the burr detection rope 8 is hooked or touched, it will drive the connecting plate 30 to move. The connecting plate 30 drives the second rubber block 33 to squeeze the pressure sensor 7 through the connection of the pull rod 32, so that the pressure value changes. After the burr detection rope 8 leaves the burr, under the action of the third spring 34, the pull rod 32 is reset and waits for the next activation; in addition, when the pressure sensor 7 in the first shell 15 and the second shell 29 is activated, the industrial cameras 4 installed on the first shell 15 and the second shell 29 are immediately started to shoot the current area, so that the defects on the surface of the wood 5 can be photographed, which greatly improves the defect shooting efficiency and avoids shooting unnecessary good pictures.

[0035] Furthermore, the wood 5 lifting unit is arranged above the base 1; a plurality of the third lifting components 35 are sequentially arranged above the base 1, and the output ends of the plurality of the third lifting components 35 are fixedly connected to the placement groove 36. The wood 5 is placed in the placement groove 36, and the third lifting component 35 is started to drive the placement groove 36 to move upward. After being located between the two clamping plates 12, the clamping plates 12 clamp it, and then the placement groove 36 moves downward to make room for the wood 5 to be turned over and adjusted. Through multiple adjustments, the surface of the wood 5 is photographed for defects in all directions.

[0036] When using a wood surface defect detection device of the present embodiment, the wood 5 is clamped and fixed by the two clamping units, and then the abutment adjustment unit drives the abutment wheel 6 to abut the surface of the wood 5 and move. When the abutment adjustment unit moves up or down, it indicates that the wood 5 is uneven, and the pressure sensor 7 linked to it will be triggered. The degree of unevenness can be determined according to the change of the pressure sensor 7. At the same time, the burr detection unit drives the burr detection rope 8 to approach the surface of the wood 5 and move. When the burr detection rope 8 contacts the burr, the burr detection rope 8 will be hooked. At this time, the burr detection rope 8 triggers the pressure sensor 7 linked to it. Through the pressure sensor 7 and the image processing The industrial camera 4 is electrically connected to the image processing component 3 to transmit the pressure change data to the image processing component 3 for display, and at the same time controls the industrial camera 4 to move to the area where burrs and unevenness are detected to take pictures, and finally transmits the image to the image processing component 3, and the built-in graphics processing software of the image processing component 3 performs calculation processing to obtain the defect information of the wood 5; through the above-mentioned structural setting, the corresponding pressure sensor 7 is triggered by the abutting wheel 6 and the burr detection rope 8, so that the surface defect detection of the wood 5 can be carried out in a targeted manner, and then the defective area can be photographed separately, so that the defect image can be accurately captured, avoiding the shooting of unnecessary good pictures, reducing the pressure for subsequent image processing, and improving the image processing efficiency during surface defect detection.

[0037] See also Figure 8 The present invention also provides a wood surface defect detection system, including the wood surface defect detection equipment described above, and also including a wood surface cleaning device 37, a wood loading and unloading device 38 and a wood defect display device 39, wherein the wood surface cleaning device 37 is arranged on one side of the wood loading and unloading device 38, the wood loading and unloading device 38 is arranged on one side of the wood surface defect detection device, and the wood defect display device 39 is arranged on the other side of the wood 5 defect detection device.

[0038] Before photographing the surface defects of the wood 5, the dust and unknown impurities on the surface of the wood 5 are cleaned by the wood surface cleaning device 37, and then the wood 5 is placed in the placement groove 36 by relying on the wood loading and unloading device 38. After the photographing is completed, it is taken out, and finally, after calculation and processing by the image processing component 3, the defect information is displayed on the wood defect display device 39 so that the staff can observe it at any time.

[0039] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A wood surface defect detection device, comprising a base, a bracket, two clamping units, an image processing component, a plurality of industrial cameras, a holding adjustment unit and two burr detection units, wherein the bracket is arranged above the base, the two clamping units are symmetrically arranged above the base, the image processing component is arranged above the base, the holding adjustment unit and the two burr detection units are arranged on the bracket in sequence, the plurality of industrial cameras are respectively arranged on the holding adjustment unit and the two burr detection units, and wood is clamped between the two clamping units, characterized in that: Also included are detection components; The detection component includes a supporting wheel, a plurality of pressure sensors and a burr detection rope, the supporting wheel is arranged on the supporting adjustment unit, the plurality of pressure sensors are respectively arranged in the supporting adjustment unit and the two burr detection units, and the burr detection rope is arranged between the two burr detection units.

2. The wood surface defect detection device according to claim 1, characterized in that: The clamping unit includes a supporting block, a rotating component, a clamping component and a clamping plate, the two ends of the supporting block are respectively fixedly connected to the top of the base and the bottom of the rotating component, the output end of the rotating component is fixedly connected to the clamping component, the output end of the clamping component is fixedly connected to the clamping plate, and the wood is clamped between the two clamping plates.

3. The wood surface defect detection device according to claim 2, characterized in that: The supporting adjustment unit includes a first transverse component, a first lifting component, a first shell, a U-shaped plate, two sliders, two first springs and a supporting mechanism, the first transverse component is arranged on the inner top wall of the bracket, the first lifting component is arranged on the output end of the first transverse component, the first shell is arranged on the output end of the first lifting component, the U-shaped plate is arranged inside the first shell, the supporting wheel is rotatably connected to the U-shaped plate, the first shell has two slide grooves, the two sliders are respectively slidably connected to the corresponding slide grooves, one end of the two sliders is fixedly connected to the top of the U-shaped plate, the two ends of the two first springs are respectively fixedly connected to the inner wall of the corresponding slide groove and the slider, the supporting mechanism is arranged inside the first shell, and the industrial camera is arranged on both sides of the first shell.

4. The wood surface defect detection device according to claim 3, characterized in that: The supporting mechanism includes a supporting groove, a sliding rod and a plurality of resilient components. The supporting groove is arranged inside the first shell. The sliding rod is slidably connected to the supporting groove. The plurality of resilient components are sequentially arranged inside the supporting groove.

5. The wood surface defect detection device according to claim 4, characterized in that: The rebound component includes a push block, a first rubber block and a second spring. The support groove has a groove. The push block is slidably connected to the groove. The first rubber block is arranged at one end of the push block. The pressure sensor is arranged inside the groove. The two ends of the second spring are movably connected to the inner wall of the groove and one end of the push block respectively.

6. The wood surface defect detection device according to claim 5, characterized in that: The burr detection unit includes a second transverse component, a second lifting component, a second shell, a connecting plate, a T-shaped support block, two pull rods, two second rubber blocks and two third springs. The second transverse component is arranged on the inner top wall of the bracket, the output end of the second transverse component is fixedly connected to the second lifting component, the output end of the second lifting component is fixedly connected to the second shell, the second shell and the connecting plate and the second shell are adapted to each other, the T-shaped support block is arranged on the inner wall of the second shell, two pressure sensors are arranged on the T-shaped support block, one end of the two pull rods are fixedly connected to the connecting plate, the other ends of the two pull rods are respectively fixedly connected to the corresponding second rubber blocks, the two ends of the two third springs are respectively movably connected to the pull rod and the inner wall of the second shell, and the two ends of the burr detection rope are respectively fixedly connected to the corresponding connecting plate.

7. The wood surface defect detection device according to claim 6, characterized in that: The detection assembly further comprises a wood lifting unit, and the wood lifting unit is arranged above the base; The wood lifting unit comprises a plurality of third lifting components and placement grooves. The plurality of third lifting components are sequentially arranged above the base, and the output ends of the plurality of third lifting components are fixedly connected to the placement grooves.

8. A wood surface defect detection system, comprising the wood surface defect detection device according to claim 7, characterized in that: It also includes a wood surface cleaning device, a wood loading and unloading device and a wood defect display device, wherein the wood surface cleaning device is arranged on one side of the wood loading and unloading device, the wood loading and unloading device is arranged on one side of the wood surface defect detection device, and the wood defect display device is arranged on the other side of the wood defect detection device.

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