Visual inspection device for surface roughness of fireproof insulation board

Abstract

The invention discloses a fireproof insulation board surface roughness visual detection device, which comprises a bearing frame, the middle part of the bearing frame is provided with a self-adaptive conveying unit, the two sides of the upper end of the bearing frame are both provided with limiting grooves, the limiting grooves are internally provided with intelligent adjusting mechanisms, the intelligent adjusting mechanisms are provided with two moving plates, and the moving plates are arranged on the upper end of the bearing frame. A mounting groove is formed in the movable plate, a self-adaptive clamping device is mounted in the mounting groove, a conveying mechanism is mounted on the self-adaptive clamping device, and a fixing frame is mounted on the bearing frame. Damage to the surface of the fireproof insulation board caused by traditional contact type probe detection is avoided, meanwhile, each board can be comprehensively detected, the detection accuracy and reliability are greatly improved, surface flaws caused by uneven distribution of foaming materials and the like can be found in time, a production enterprise can adjust the production process in time, and the production efficiency is improved. The product quality and the production efficiency are improved, and the bottleneck in the traditional production process is broken through.

Description

Technical Field

[0001] The present invention relates to the technical field of fireproof insulation board detection, and particularly to a visual detection device for the surface roughness of fireproof insulation boards. Background Technique

[0002] In the construction field, the quality of fireproof insulation boards is crucial for the safety and energy efficiency of buildings. As a key quality index of fireproof insulation boards, surface roughness directly affects the adhesion degree of the boards to other building materials, the heat preservation performance, and the fireproof effect.

[0003] There are many drawbacks in traditional surface detection methods for fireproof insulation boards. The contact probe detection method needs to directly contact the surface of the board, which not only easily scratches the surface of the board, destroys its integrity, but also may affect the heat preservation and fireproof performance of the board. Moreover, contact detection usually can only be carried out by sampling, and it is impossible to comprehensively detect each board, which may lead to defective boards flowing into the market and bringing potential safety hazards.

[0004] During the production process, for products such as homogeneous fireproof boards, due to the complexity of the production process, the uneven distribution of foaming agents often occurs, thereby forming defects on the surface of the board. However, the existing detection equipment has limited functions and is difficult to synchronously complete the quality monitoring of these surface defects on the production line, resulting in bottlenecks in the production process and affecting the overall quality and production efficiency of the products.

[0005] In addition, during the transportation process of fireproof insulation boards, clamping devices are needed to fix and move them. However, the existing clamping methods are not perfect enough, and the vibration generated during the transportation process easily causes surface wear of the boards. Moreover, there is currently a lack of effective real-time monitoring means, and these problems cannot be detected and processed in time, resulting in a decline in product quality.

[0006] Therefore, we propose a visual detection device for the surface roughness of fireproof insulation boards to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a visual detection device for the surface roughness of fireproof insulation boards.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] A visual inspection device for the surface roughness of a fireproof insulation board, comprising a carrier frame, an adaptive conveying unit is installed in the middle of the carrier frame, limiting grooves are provided on both sides of the upper end of the carrier frame, an intelligent adjustment mechanism is installed in the limiting grooves, two moving plates are installed on the intelligent adjustment mechanism, an installation groove is provided on the moving plate, an adaptive clamping device is installed in the installation groove, a conveying mechanism is installed on the adaptive clamping device, a fixed frame is installed on the carrier frame, a multi-modal optical detection unit is installed on the fixed frame, a control terminal is provided on one side of the carrier frame, and light-shielding plates are installed on the control terminal and the multi-modal optical detection unit.

[0010] Preferably, the adaptive conveying unit includes a flexible conveyor belt installed on the carrier frame.

[0011] Preferably, the intelligent adjustment mechanism includes a hydraulic cylinder installed in the limiting groove through a clamp, a connecting block is fixed at the end of the piston rod of the hydraulic cylinder, one end of a connecting block on the same side is fixed to one side of a moving plate on the same side, guide rails are fixed on both sides of the upper end of the carrier frame, a clamping groove is provided at the lower end of the moving plate, and a clamping groove on the same side is clamped on a guide rail on the same side.

[0012] Preferably, the adaptive clamping device includes four convex blocks fixed between the opposite side walls in the installation groove, springs are installed on the convex blocks, a moving plate is jointly connected between the four springs, the moving plate is installed in the installation groove, and a connecting rod is rotatably sleeved on the moving plate.

[0013] Preferably, the conveying mechanism includes a clamping roller connected between two connecting rods, a servo motor is fixed on one side of one of the moving plates, the output shaft of the servo motor is connected to one end of one of the connecting rods, a silica gel sleeve is sleeved on the circumference of the clamping roller, and a pressure sensor array is installed on the silica gel sleeve.

[0014] Preferably, the fixed frame includes a vertical plate fixed on one side of the upper end of the carrier frame, and an installation plate is fixed on the upper end of the vertical plate.

[0015] Preferably, the multi-modal optical detection unit includes a laser displacement sensor fixed on the vertical plate, an industrial camera is installed on the upper end of the installation plate, and an LED visible light array is installed on one side of the carrier frame.

[0016] Preferably, the control terminal includes a control device provided on one side of the carrier frame, a control panel is provided on one side of the control device, and a lighting fixture is installed on the upper end of the control device.

[0017] Preferably, suction cups are provided at the four corners of the lower end of the light-shielding plate.

[0018] Preferably, magnetic blocks are provided at the four corners of the lower end of the light-shielding plate.

[0019] In the present invention, during the detection:

[0020] 1. Plate conveying and adaptive clamping: Place the fireproof insulation board on the flexible conveyor belt. Drive the connecting block through the hydraulic cylinder to make the moving plate move along the guide rail and adjust to the appropriate position. At the same time, the spring adaptively clamps the plate and stably conveys the plate to the detection area. The servo motor drives the clamping roller to rotate and rotate synchronously with the flexible conveyor belt to ensure the smooth conveyance of the plate;

[0021] 2. Data acquisition

[0022] Obtaining two-dimensional texture images: When the plate reaches the detection area, the LED visible light array emits blue light for illumination, and Industrial Camera 1 takes pictures of the plate surface to obtain two-dimensional texture images.

[0023] Generating height distribution cloud maps: The laser displacement sensor performs laser scanning on the plate surface to generate height distribution cloud maps and record the three-dimensional height information of the plate surface;

[0024] 3. Feature fusion analysis: Perform feature fusion on the obtained two-dimensional texture images and height distribution cloud maps, and extract 12 surface roughness parameters including Sa (arithmetic mean height), Sz (ten-point height), etc. These parameters can comprehensively and accurately describe the roughness characteristics of the plate surface;

[0025] 4. Defect classification: Analyze the extracted feature parameters based on the ResNet-50 model to classify the defects on the plate surface. This model has strong feature extraction and classification capabilities and can accurately identify different types of surface defects;

[0026] 5. Automatic focal length adjustment: Automatically adjust the detection focal lengths of the industrial camera and the laser displacement sensor according to the undulation of the plate surface to ensure clear and accurate detection data can be obtained under different surface conditions.

[0027] The present invention has the following advantages:

[0028] 1. Adopt a non-contact visual detection method, which avoids the damage to the surface of the fireproof insulation board caused by traditional contact probe detection. At the same time, it can comprehensively detect each plate, greatly improving the accuracy and reliability of detection;

[0029] 2. It can synchronously monitor the surface quality of the fireproof insulation board on the production line, timely detect surface defects caused by problems such as uneven distribution of foaming agents, etc., which helps production enterprises timely adjust the production process, improve product quality and production efficiency, and break through the bottleneck in the traditional production process;

[0030] 3. The clamping force is monitored in real time through a pressure sensor array to avoid surface wear caused by clamping vibration during the transfer process. At the same time, the real-time monitoring function can promptly detect abnormal conditions on the surface of the board, facilitating timely measures to be taken for treatment and ensuring product quality.

[0031] 4. A multi-modal optical detection unit is used to obtain rich surface information. Through feature fusion analysis and model-based defect classification, various defects on the surface of the board can be accurately detected and accurately classified. In addition, the function of automatically adjusting the detection focal length ensures high-quality detection data can be obtained under different surface conditions, improving the accuracy and reliability of the detection.

[0032] In summary, the present invention avoids the damage to the surface of the fireproof insulation board caused by traditional contact probe detection. At the same time, it can comprehensively detect each board, greatly improving the accuracy and reliability of the detection. It can promptly detect surface defects caused by problems such as uneven distribution of foaming agents, helping production enterprises promptly adjust the production process, improve product quality and production efficiency, and break through the bottleneck in the traditional production process. Description of the Drawings

[0033] Figure 1 is the structural diagram of the present invention;

[0034] Figure 2 is the structural diagram of the intelligent adjustment mechanism of the present invention;

[0035] Figure 3 is the structural diagram of the pressure sensor array setting of the present invention;

[0036] Figure 4 is the structural diagram of the adaptive clamping device of the present invention;

[0037] Figure 5 is the structural diagram of the magnetic attraction block setting of the present invention;

[0038] Figure 6 is the structural diagram of the suction cup setting of the present invention;

[0039] Figure 7 is the system connection diagram of the present invention.

[0040] In the figure: 1 industrial camera, 2 mounting plate, 3 clamping roller, 4 hydraulic cylinder, 5 moving plate, 6 servo motor, 7 flexible conveyor belt, 8 carrier, 9 moving plate, 10 guide rail, 11 vertical plate, 12 laser displacement sensor, 13 spacer block, 14 light-shielding plate, 15 LED visible light array, 16 control device, 17 control panel, 18 bump, 19 spring, 20 mounting groove, 21 connecting rod, 22 silica gel sleeve, 23 connecting block, 24 card slot, 25 magnetic attraction block, 26 pressure sensor array, 27 limiting groove, 28 suction cup, 29 lighting fixture, 30 clamp. Specific Embodiments

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0042] Refer to Figure 1-7 , a visual detection device for the surface roughness of a fireproof insulation board, including a carrier 8. An adaptive conveying unit is installed in the middle of the carrier 8. Limiting grooves 27 are provided on both sides of the upper end of the carrier 8. An intelligent adjustment mechanism is installed in the limiting grooves 27. Two moving plates 5 are installed on the intelligent adjustment mechanism. An installation groove 20 is provided on the moving plate 5. An adaptive clamping device is installed in the installation groove 20. A conveying mechanism is installed on the adaptive clamping device. A fixed frame is installed on the carrier 8. A multimodal optical detection unit is installed on the fixed frame. A control terminal is provided on one side of the carrier 8. A light-shielding plate 14 is installed on the control terminal and the multimodal optical detection unit. The light-shielding plate 14 can reduce the interference of external light on the detection result;

[0043] The adaptive conveying unit includes a flexible conveyor belt 7 installed on the carrier 8. The flexible conveyor belt 7 has good flexibility and adaptability, can deform to a certain extent according to the shape and weight of the board, ensure the smoothness of the board during transportation, and it can be made of high-strength rubber material with a special treatment on the surface to increase the friction with the board and prevent the board from sliding during transportation;

[0044] The intelligent adjustment mechanism includes a hydraulic cylinder 4 installed in the limiting groove 27 through a clamp 30. A connecting block 23 is fixed at the end of the piston rod of the hydraulic cylinder 4. One end of a connecting block 23 on the same side is fixed to one side of a moving plate 5 on the same side. Guide rails 10 are fixed on both sides of the upper end of the carrier 8. A card slot 24 is provided at the lower end of the moving plate 5. A card slot 24 on the same side is clamped to a guide rail 10 on the same side. By the expansion and contraction of the hydraulic cylinder 4, the moving plate 5 can be driven to move. The guide rail 10 provides accurate guidance for the movement of the moving plate 5 to ensure that the moving plate 5 can move along a predetermined trajectory;

[0045] The adaptive clamping device includes four convex blocks 18 fixed between the opposite side walls in the installation groove 20. Springs 19 are installed on the convex blocks 18. A moving plate 9 is jointly connected between the four springs 19. The moving plate 9 is installed in the installation groove 20. A connecting rod 21 is rotatably sleeved on the moving plate 9. The spring 19 has elasticity and can be adaptively adjusted according to the thickness and shape of the board to ensure the stable clamping of the board;

[0046] The conveying mechanism includes a clamping roller 3 connected between two connecting rods 21. A servo motor 6 is fixed on one side of one of the moving plates 9, and the output shaft of the servo motor 6 is connected to one end of one of the connecting rods 21. A silica gel sleeve 22 is sleeved around the clamping roller 3, and a pressure sensor array 26 is installed on the silica gel sleeve 22. Driven by the servo motor 6, the clamping roller 3 can rotate. The silica gel sleeve 22 has good flexibility and anti-slip performance, can better contact with the board, and prevent the board from being damaged during transportation. The pressure sensor array 26 can monitor the pressure of the clamping roller 3 on the board in real time, ensure uniform pressure, and prevent unstable board transportation caused by excessive or too small pressure;

[0047] The fixing frame includes a vertical plate 11 fixed on one side of the upper end of the bearing frame 8. The upper end of the vertical plate 11 is fixed with a mounting plate 2. The vertical plate 11 provides vertical support for the mounting plate 2, and the mounting plate 2 provides a horizontal platform for the installation of the multimodal optical detection unit, ensuring the stable installation of the detection equipment;

[0048] The multimodal optical detection unit includes a laser displacement sensor 12 fixed on the vertical plate 11, an industrial camera 1 is installed on the upper end of the mounting plate 2, and an LED visible light array 15 is installed on one side of the bearing frame 8. The laser displacement sensor 12 can accurately measure the height information of the board surface using the laser reflection principle. The industrial camera 1 features high resolution and high frame rate and can clearly capture images of the board surface. The blue light illumination emitted by the LED visible light array 15 can improve the shooting effect of the industrial camera 1 and make the acquired images clearer;

[0049] The control terminal includes a control device 16 arranged on one side of the bearing frame 8. A control panel 17 is provided on one side of the control device 16, and a lighting fixture 29 is installed on the upper end of the control device 16. Operators can input instructions and set detection parameters through the control panel 17. The lighting fixture 29 can provide sufficient light for the operation area, facilitating operation and maintenance by operators;

[0050] Suction cups 28 are provided at the four corners of the lower end of the light shield 14, and magnetic blocks 25 are provided at the four corners of the lower end of the light shield 14. The suction cups 28 can firmly adsorb the light shield 14 on the control terminal and the multimodal optical detection unit, preventing the light shield 14 from shaking. The magnetic blocks 25 can further enhance the fixing effect of the light shield 14 and at the same time facilitate the disassembly and installation of the light shield 14;

[0051] In the present invention, when detecting:

[0052] 1. Plate transportation and adaptive clamping: Place the fireproof insulation board on the flexible conveyor belt 7. Drive the connecting block 23 through the hydraulic cylinder 4 to make the moving plate 5 move along the guide rail 10 and adjust to the appropriate position. At the same time, the spring 19 adaptively clamps the plate, transports the plate stably to the detection area, and the servo motor 6 drives the clamping roller 3 to rotate, which rotates synchronously with the flexible conveyor belt 7 to ensure the stable transportation of the plate;

[0053] 2. Data acquisition

[0054] Acquisition of two-dimensional texture image: When the plate reaches the detection area, the LED visible light array 15 emits blue light for illumination, and the industrial camera 1 takes pictures of the plate surface to obtain a two-dimensional texture image.

[0055] Generation of height distribution cloud map: The laser displacement sensor 12 performs laser scanning on the plate surface to generate a height distribution cloud map and record the three-dimensional height information of the plate surface;

[0056] 3. Feature fusion analysis: Perform feature fusion on the obtained two-dimensional texture image and height distribution cloud map, and extract 12 surface roughness parameters including Sa arithmetic mean height, Sz ten-point height, etc. These parameters can comprehensively and accurately describe the roughness characteristics of the plate surface;

[0057] 4. Defect classification: Analyze the extracted feature parameters based on the ResNet-50 model to classify the defects on the plate surface. This model has strong feature extraction and classification capabilities and can accurately identify different types of surface defects;

[0058] 5. Automatic focal length adjustment: Automatically adjust the detection focal lengths of the industrial camera 1 and the laser displacement sensor 12 according to the undulation of the plate surface to ensure clear and accurate detection data under different surface conditions.

[0059] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A visual inspection device for the surface roughness of a fireproof insulation board, including a carrier frame (8), characterized in that, An adaptive conveying unit is installed in the middle of the carrier (8). Limit slots (27) are provided on both sides of the upper end of the carrier (8). An intelligent adjustment mechanism is installed in the limit slots (27). Two moving plates (5) are installed on the intelligent adjustment mechanism. An installation slot (20) is provided on the moving plate (5). An adaptive clamping device is installed in the installation slot (20). A conveying mechanism is installed on the adaptive clamping device. A fixing frame is installed on the carrier (8). A multimodal optical detection unit is installed on the fixing frame. A control terminal is provided on one side of the carrier (8). A light-shielding plate (14) is installed on the control terminal and the multimodal optical detection unit.

2. The visual inspection device for the surface roughness of a fireproof insulation board according to claim 1, characterized in that: The adaptive conveying unit includes a flexible conveyor belt (7) installed on the carrier (8).

3. The visual inspection device for the surface roughness of a fireproof insulation board according to claim 1, characterized in that: The intelligent adjustment mechanism includes a hydraulic cylinder (4) installed in the limit slot (27) through a clamp (30). A connecting block (23) is fixed to the end of the piston rod of the hydraulic cylinder (4). One end of a connecting block (23) on the same side is fixed to one side of a moving plate (5) on the same side. Guide rails (10) are fixed to both sides of the upper end of the carrier (8). A card slot (24) is provided at the lower end of the moving plate (5). One card slot (24) on the same side is clamped to one guide rail (10) on the same side.

4. A visual inspection device for the surface roughness of a fireproof insulation board according to claim 1, characterized in that: The adaptive clamping device includes four convex blocks (18) fixed between the opposite side walls in the installation slot (20). Springs (19) are installed on the convex blocks (18). A moving plate (9) is commonly connected between the four springs (19). The moving plate (9) is installed in the installation slot (20). A connecting rod (21) is rotatably sleeved on the moving plate (9).

5. The visual inspection device for the surface roughness of a fireproof insulation board according to claim 4, characterized in that: The conveying mechanism includes a clamping roller (3) connected between the two connecting rods (21). A servo motor (6) is fixed to one side of one of the moving plates (9). The output shaft of the servo motor (6) is connected to one end of one of the connecting rods (21). A silica gel sleeve (22) is sleeved on the circumference of the clamping roller (3). A pressure sensor array (26) is installed on the silica gel sleeve (22).

6. The visual inspection device for the surface roughness of a fireproof insulation board according to claim 1, characterized in that: The fixing frame includes a vertical plate (11) fixed to one side of the upper end of the carrier (8). An installation plate (2) is fixed to the upper end of the vertical plate (11).

7. The visual inspection device for the surface roughness of a fireproof insulation board according to claim 6, characterized in that: The multimodal optical detection unit includes a laser displacement sensor (12) fixed to the vertical plate (11). An industrial camera (1) is installed on the upper end of the installation plate (2). An LED visible light array (15) is installed on one side of the carrier (8).

8. A visual inspection device for the surface roughness of a fireproof insulation board according to claim 1, characterized in that: The control terminal includes a control device (16) provided on one side of the carrier (8). A control panel (17) is provided on one side of the control device (16). A lighting fixture (29) is installed on the upper end of the control device (16).

9. The visual inspection device for the surface roughness of the fireproof insulation board according to claim 1, characterized in that: Suction cups (28) are provided at the four corners of the lower end of the light-shielding plate (14).

10. The visual inspection device for the surface roughness of a fireproof insulation board according to claim 1, characterized in that: Magnetic blocks (25) are provided at the four corners of the lower end of the light-shielding plate (14).

Images