Online visual detection device for surface defects of artificial board

Abstract

The utility model discloses an on-line visual detection device for surface defects of an artificial board. The on-line visual detection device comprises an aluminum profile rack, the front photoelectric sensor and the rear photoelectric sensor are installed on the front outer side and the rear outer side of the aluminum profile rack respectively. The upper station adjustable camera assembly and the lower station adjustable camera assembly are installed on the upper portion and the lower portion of the aluminum profile rack respectively. The left side face adjustable camera assembly and the right side face adjustable camera assembly are installed on the left portion and the right portion of the aluminum profile rack respectively. An upper station adjustable light source assembly and a lower station adjustable light source assembly are arranged on the upper portion and the lower portion of the aluminum profile rack respectively. Left and right side surface adjustable light source assemblies are respectively arranged at the left and right parts of the aluminum profile rack; an artificial board transition assembly is arranged at an artificial board inlet of the aluminum profile rack and used for stable entering and exiting of artificial boards. The production inspection efficiency is greatly improved, the circulation time is also reduced, and artificial boards in an inspection workshop are not required to be additionally occupied.

Description

Technical Field

[0001] The utility model relates to a device for detecting surface defects of artificial boards. Background Art

[0002] Artificial boards are composite materials made by gluing or fixing wood strips, particles, fibers or veneers or boards, together with adhesives or other fixing methods. Artificial boards have good structure, convenient construction, stable dimensions, low expansion and contraction rates, and are not easy to deform or crack. They are widely used in the construction and furniture industries. During the manufacturing process, artificial boards need to be inspected for surface defects (such as focus, corner damage, breakage, sand damage, dirt, large shavings, large damage, spots, etc.), and the artificial boards are graded according to the defects. Early surface defect detection was performed by human eyes, which would cause eye fatigue after long-term work, and were prone to over-inspection and missed inspections. In addition, the labor intensity was high, the detection efficiency was low, the subjectivity was strong, and the detection accuracy could not be guaranteed. With the development of science and technology and the improvement of surface quality requirements for artificial boards, the requirements for detecting surface defects of artificial boards are becoming higher and higher. The detection work is developing towards the direction of using automated equipment for detection. However, the detection effect of current automated detection equipment is still far from the detection requirements. There are still some surface defects that cannot be detected or missed, and the detection speed is slow, which cannot meet the timely detection of boards during the transportation process, greatly affecting the accuracy, effect and efficiency of board detection. Utility Model Content

[0003] The utility model aims to provide an online visual inspection device for surface defects of artificial boards which greatly improves production inspection efficiency, reduces turnover time and does not require additional inspection workshops.

[0004] The technical solution of the utility model is:

[0005] An online visual inspection device for surface defects of artificial boards, characterized in that it comprises an aluminum profile frame installed across an artificial board production line; front and rear photoelectric sensors are respectively installed on the front and rear outer sides of the aluminum profile frame, for sensing whether the artificial board has entered the inspection device; an upper station adjustable camera assembly and a lower station adjustable camera assembly are respectively installed on the upper and lower parts of the aluminum profile frame, for photographing the upper and lower surfaces of the artificial board and collecting images; left and right side adjustable camera assemblies are respectively installed on the left and right parts of the aluminum profile frame, for photographing the left and right sides of the artificial board and collecting images; an upper station adjustable light source assembly and a lower station adjustable light source assembly are respectively arranged on the upper and lower parts of the aluminum profile frame; left and right side adjustable light source assemblies are respectively arranged on the left and right parts of the aluminum profile frame; an artificial board transition assembly is arranged at the artificial board entrance of the aluminum profile frame, for smooth entry and exit of the artificial board.

[0006] The upper station adjustable camera assembly and the lower station adjustable camera assembly have the same structure, both including a camera assembly mounting plate, the camera assembly mounting plate being connected to the Z-axis movable slide, the Z-axis movable slide being connected to the camera mounting sheet metal, and the camera being mounted on the camera mounting sheet metal; the camera assembly mounting plate being mounted on a longitudinally arranged aluminum profile groove, the camera assembly mounting plate being moved up and down on the aluminum profile groove to achieve up and down position adjustment of the camera; the longitudinally arranged aluminum profile being changed on the aluminum profile frame to achieve front and back, left and right direction adjustment of the camera.

[0007] The left and right side adjustable camera assemblies have the same structure and both include a mounting plate, which is connected to a sheet metal and on which the camera is mounted. An arc-shaped waist hole is provided on the mounting plate, which is connected to an aluminum profile bracket through the arc-shaped waist hole to achieve angle adjustment within a certain range. The aluminum profile bracket achieves front-to-back and left-to-right adjustment of the camera by changing the front-to-back and left-to-right position of the bracket mounted on the aluminum profile frame.

[0008] The left and right side adjustable light source assemblies have the same structure, both including a bracket mounting plate, the bracket mounting plate is connected to the light source mounting plate, and the light source mounting plate is equipped with a side light source; the bracket mounting plate and the light source mounting plate are connected by an arc-shaped waist hole structure to achieve a certain angle of rotation; the bracket mounting plate is installed on an aluminum profile, and the front and back, left and right directions are adjusted by changing the front and back, left and right positions of the aluminum profile on the aluminum profile frame.

[0009] The upper station adjustable light source assembly and the lower station adjustable light source assembly have the same structure, both including a light source mounting plate, the light source mounting plate is connected to the sheet metal, the sheet metal is connected to the aluminum profile bracket mounted on the aluminum profile frame, and the light source is mounted on the light source mounting plate.

[0010] The artificial board transition component comprises a transition frame, which is connected to a smooth strip installation sheet metal, and a smooth strip is installed on the smooth strip installation sheet metal to enable the artificial board to pass smoothly, and side baffles are arranged on both sides of the transition frame.

[0011] An air blowing assembly is provided on the aluminum profile frame for blowing the camera light source to ensure the cleanliness of the camera light source.

[0012] The utility model aims at meeting the demand for high-efficiency, automation and high-precision online defect detection after the finished artificial boards are produced on-site. The utility model is connected with the on-site artificial board production equipment, and designs a saw chain defect detection system based on deep learning, which is used to detect surface defects of artificial boards and improve their production efficiency and detection accuracy. The detection device is directly connected at the artificial board production outlet, which greatly reduces the labor intensity of workers and reduces the occupancy of the finished artificial board inspection workshop. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0015] Figure 2 yes Figure 1 Side view of.

[0016] Figure 3 yes Figure 1 Front view of .

[0017] Figure 4 It is a structural schematic diagram of an upper station adjustable camera assembly (or a lower station adjustable camera assembly).

[0018] Figure 5 It is a structural schematic diagram of an upper station adjustable light source assembly (or a lower station adjustable light source assembly).

[0019] Figure 6 It is a schematic diagram of the structure of the left and right side adjustable camera assembly.

[0020] Figure 7 It is a structural schematic diagram of the left and right side adjustable light source components.

[0021] Figure 8 It is a structural schematic diagram of the wood-based panel transition assembly. DETAILED DESCRIPTION

[0022] An online visual inspection device for surface defects of artificial boards comprises an aluminum profile frame 1 installed across an artificial board production line; front and rear photoelectric sensors 2 are respectively installed on the front and rear outer sides of the aluminum profile frame, and are used to sense whether the artificial board has entered the inspection device; an upper station adjustable camera assembly 3 and a lower station adjustable camera assembly 7 are respectively installed on the upper and lower parts of the aluminum profile frame, and are used to take pictures of the upper and lower surfaces of the artificial board for image acquisition; left and right side adjustable camera assemblies 8 are respectively installed on the left and right parts of the aluminum profile frame, and are used to take pictures of the left and right sides of the artificial board for image acquisition; an upper station adjustable light source assembly 4 and a lower station adjustable light source assembly 5 are respectively arranged on the upper and lower parts of the aluminum profile frame; left and right side adjustable light source assemblies 9 are respectively arranged on the left and right parts of the aluminum profile frame; and an artificial board transition assembly 10 is arranged at the artificial board entrance of the aluminum profile frame, and is used for the smooth entry and exit of the artificial board.

[0023] The upper station adjustable camera assembly and the lower station adjustable camera assembly have the same structure, both including a camera assembly mounting plate 12, the camera assembly mounting plate is connected to a Z-axis movable slide 13, the Z-axis movable slide is connected to a camera mounting sheet metal 14, and a camera 15 is mounted on the camera mounting sheet metal; the camera assembly mounting plate is mounted on a longitudinally arranged aluminum profile groove, and the camera assembly mounting plate can achieve up and down position adjustment of the camera by moving the upper and lower mounting positions on the aluminum profile groove; the longitudinally arranged aluminum profile can achieve front and back, left and right direction adjustment of the camera by changing the front and back, left and right positions installed on the aluminum profile frame.

[0024] The left and right side adjustable camera assemblies have the same structure, both including a mounting plate 19, which is connected to a sheet metal 21, and a camera 20 is mounted on the sheet metal; an arc-shaped waist hole is provided on the mounting plate, which is connected to an aluminum profile bracket through the arc-shaped waist hole to achieve angle adjustment within a certain range; the aluminum profile bracket achieves front-to-back and left-to-right adjustment of the camera by changing the front-to-back and left-to-right position installed on the aluminum profile frame.

[0025] The left and right side adjustable light source assemblies have the same structure, both including a bracket mounting plate 22, the bracket mounting plate is connected to the light source mounting plate 23, and the light source mounting plate is equipped with a side light source 24; the bracket mounting plate and the light source mounting plate are connected by an arc waist hole structure to achieve a certain angle of rotation; the bracket mounting plate is installed on an aluminum profile, and the front and back, left and right directions are adjusted by changing the front and back, left and right positions of the aluminum profile on the aluminum profile frame.

[0026] The upper station adjustable light source assembly and the lower station adjustable light source assembly have the same structure, both including a light source mounting plate 17, which is connected to a sheet metal 18, which is connected to an aluminum profile bracket mounted on an aluminum profile frame, and a light source 16 is mounted on the light source mounting plate.

[0027] The artificial board transition assembly includes a transition frame 25, which is connected to a smooth strip installation sheet metal 27. A smooth strip 26 is installed on the smooth strip installation sheet metal to allow the artificial board to pass smoothly. Side baffles 28 are provided on both sides of the transition frame.

[0028] An air blowing assembly 11 is provided on the aluminum profile frame for blowing the camera light source to ensure the cleanliness of the camera light source.

[0029] Working process: The aluminum profile rack is installed across the artificial board production line. When a wooden board on the artificial board production line passes through the detection device, the photoelectric sensor will trigger the light sources on the upper, lower, left and right sides to turn on, and at the same time trigger the cameras on the upper, lower, left and right sides to start taking pictures, completing the image acquisition on the upper, lower, left and right sides to obtain the image.

Claims

1. An online visual inspection device for surface defects of artificial boards, characterized by: It comprises an aluminum profile rack installed across the artificial board production line; front and rear photoelectric sensors are respectively installed on the front and rear outer sides of the aluminum profile rack to sense whether the artificial board has entered the detection device; an upper station adjustable camera component and a lower station adjustable camera component are respectively installed on the upper and lower parts of the aluminum profile rack to take pictures of the upper and lower surfaces of the artificial board for image acquisition; left and right side adjustable camera components are respectively installed on the left and right parts of the aluminum profile rack to take pictures of the left and right sides of the artificial board for image acquisition; an upper station adjustable light source component and a lower station adjustable light source component are respectively arranged on the upper and lower parts of the aluminum profile rack; left and right side adjustable light source components are respectively arranged on the left and right parts of the aluminum profile rack; an artificial board transition component is arranged at the artificial board entrance of the aluminum profile rack to ensure the smooth entry and exit of the artificial board.

2. The on-line visual inspection device for surface defects of artificial boards according to claim 1 is characterized in that: The upper station adjustable camera assembly and the lower station adjustable camera assembly have the same structure, both including a camera assembly mounting plate, the camera assembly mounting plate being connected to the Z-axis movable slide, the Z-axis movable slide being connected to the camera mounting sheet metal, and the camera being mounted on the camera mounting sheet metal; the camera assembly mounting plate being mounted on a longitudinally arranged aluminum profile groove, the camera assembly mounting plate being moved up and down on the aluminum profile groove to achieve up and down position adjustment of the camera; the longitudinally arranged aluminum profile being changed on the aluminum profile frame to achieve front and back, left and right direction adjustment of the camera.

3. The on-line visual inspection device for surface defects of artificial boards according to claim 1 is characterized in that: The left and right side adjustable camera assemblies have the same structure and both include a mounting plate, which is connected to a sheet metal and on which the camera is mounted. An arc-shaped waist hole is provided on the mounting plate, which is connected to an aluminum profile bracket through the arc-shaped waist hole to achieve angle adjustment within a certain range. The aluminum profile bracket achieves front-to-back and left-to-right adjustment of the camera by changing the front-to-back and left-to-right position of the bracket mounted on the aluminum profile frame.

4. The on-line visual inspection device for surface defects of artificial boards according to claim 1 is characterized in that: The left and right side adjustable light source assemblies have the same structure, both including a bracket mounting plate, the bracket mounting plate is connected to the light source mounting plate, and the light source mounting plate is equipped with a side light source; the bracket mounting plate and the light source mounting plate are connected by an arc-shaped waist hole structure to achieve a certain angle of rotation; the bracket mounting plate is installed on an aluminum profile, and the front and back, left and right directions are adjusted by changing the front and back, left and right positions of the aluminum profile on the aluminum profile frame.

5. The on-line visual inspection device for surface defects of artificial boards according to claim 1 is characterized in that: The upper station adjustable light source assembly and the lower station adjustable light source assembly have the same structure, both including a light source mounting plate, the light source mounting plate is connected to the sheet metal, the sheet metal is connected to the aluminum profile bracket mounted on the aluminum profile frame, and the light source is mounted on the light source mounting plate.

6. The on-line visual inspection device for surface defects of artificial boards according to claim 1, 2, 3, 4 or 5, characterized in that: The artificial board transition component comprises a transition frame, which is connected to a smooth strip installation sheet metal, and a smooth strip is installed on the smooth strip installation sheet metal to enable the artificial board to pass smoothly, and side baffles are arranged on both sides of the transition frame.

7. The on-line visual inspection device for surface defects of artificial boards according to claim 1, 2, 3, 4 or 5, characterized in that: An air blowing assembly is provided on the aluminum profile frame for blowing the camera light source to ensure the cleanliness of the camera light source.

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