Device and method for detecting surface defects of particleboard

Abstract

The present invention discloses a particle board surface defect detection device, comprising a base, a conveyor belt body, a detection structure, a first limit assembly, a transfer structure and a moving structure; the conveyor belt body is fixedly arranged on the middle part of the upper wall of the right end of the base, and the detection structure is fixedly arranged on the base and is located above the middle part of the conveyor belt body. The present invention relates to the technical field of particle board production detection equipment. The present invention has high detection accuracy and realizes dual detection of vision and ranging. Double detection can be achieved through staggered swinging to ensure the accuracy of the detection results. The camera swing stroke is adjustable and can be flexibly adjusted according to boards of different widths, which enables the equipment to adapt to the detection needs of particle boards of various specifications. The moving structure can turn the board over when it is horizontally conveyed for detection, thereby realizing double-sided detection of the board.

Description

Technical Field

[0001] The invention relates to the technical field of particle board production and detection equipment, and in particular to a particle board surface defect detection device and method. Background Art

[0002] Particleboard is a type of board made by processing wood or other lignocellulosic materials into shavings or chips, then applying adhesive and pressing them under high temperature and high pressure. Compared with solid wood boards, particleboard has relatively low strength, especially in the transverse direction. When subjected to large loads, it is prone to bending and breaking. It also has poor moisture resistance and easily absorbs moisture, causing the board to swell and deform, affecting its service life. Therefore, after the board is processed and produced, it needs to be inspected to check for defects.

[0003] Existing particleboard inspection methods, whether manual inspection or various automated inspection technologies, each have certain shortcomings: the disadvantage of manual inspection is that its accuracy is greatly affected by subjective factors: different inspectors have different experiences, vision, and concentration levels, and it is difficult to achieve completely consistent standards for judging defects. In addition, the labor intensity is high and the efficiency is low. Summary of the Invention

[0004] The purpose of the present invention is to provide a device and method for detecting surface defects of particleboard to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a particle board surface defect detection device, comprising a base, a conveyor belt body, a detection structure, a first limiting assembly, a transfer structure and a rotating structure; the conveyor belt body is fixedly arranged at the middle of the upper wall of the right end of the base, the detection structure is fixedly arranged on the base and is located above the middle of the conveyor belt body, the first limiting assembly is fixedly arranged on the conveyor belt body, the transfer structure is fixedly arranged on the left end of the base, and the transfer structure corresponds to the conveyor belt body, the rotating structure is fixedly arranged at the middle of the left end of the base, and the rotating structure corresponds to the transfer structure, the conveyor belt body is used for the board to enter the equipment and move, the detection structure is used for surface defect detection of boards of different widths, the transfer structure is used for the board to stay after detection, and the rotating structure is used for turning over the board.

[0006] Preferably, the detection structure includes a gantry, a control box, a first hydraulic cylinder, a reciprocating assembly, a drive assembly and a pair of detection assemblies; the gantry is mounted in the middle of the conveyor belt body, and both ends of the gantry are fixedly arranged on the upper wall of the base, the control box is fixedly arranged on the front side wall of the gantry, one end of the first hydraulic cylinder is fixedly arranged on the middle of the inner upper wall of the gantry, the reciprocating assembly is fixedly arranged on the telescopic end of the first hydraulic cylinder and the reciprocating assembly is located above the conveyor belt, the drive assembly is fixedly arranged on the reciprocating assembly, a pair of detection assemblies are symmetrically arranged on the reciprocating assembly, and the detection assemblies swing alternately.

[0007] The transmission gear of the present invention is a gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a

[0008] Preferably, the driving assembly includes a gear rack, a rack, a base, a first motor, a disc and a swing rod; one end of the gear rack is fixedly arranged on the right side wall of the driving frame and is located above the third wheel axle, the other end of the gear rack is trapezoidal, a plurality of teeth are equidistantly arranged on the lower wall of the rack, and a slide groove that fits with the other end of the rack is opened through the upper wall of the rack, the rack is movably mounted on the other end of the gear rack, one end of the base is fixedly arranged on the rear side wall of the driving frame, the first motor is fixedly arranged on the other end of the base, and the first motor is located corresponding to the rear side of the rack, the disc is fixedly mounted on the driving end of the first motor, one end of the swing rod is movably connected to the upper wall of the disc, and the other end of the swing rod is movably connected to the lower wall of the rear end of the rack.

[0009] Preferably, a pair of detection components are respectively fixedly mounted on the other end of the first wheel axle and the other end of the second wheel axle, and the detection components are respectively located in an upper and lower staggered relationship; the detection components include a support plate, a first electric slide rail, a telescopic arm, a camera and an infrared rangefinder; one end of the support plate is fixedly mounted on the other end of the first wheel axle, the first electric slide rail is fixedly arranged on the upper wall of the other end of the support plate, one end of the telescopic arm is fixedly arranged on the first electric slide rail, and the telescopic arm moves left and right, the camera is fixedly arranged on the lower wall of the other end of the telescopic arm, and the infrared rangefinder is fixedly arranged on the lower wall of the other end of the telescopic arm and close to the camera.

[0010] Preferably, the first limiting assembly includes a first clamping slide rail, a pair of first clamping frames, a plurality of first wheel frames and a plurality of first clamping rollers; the first clamping slide rail is fixedly arranged on the lower wall of the conveyor belt body, and first slide seats that can move relatively are arranged at both ends of the first clamping slide rail, a pair of the first clamping frames are both T-shaped, one end of a pair of the first clamping frames are respectively fixedly arranged on the first slide seats of the first clamping slide rail and are respectively located symmetrically on the front and rear sides of the conveyor belt body, a plurality of the first wheel frames are all concave, a plurality of the first wheel frames are respectively equidistantly provided with first clamping frame upper walls, and both ends of the first wheel frames are located above the conveyor belt body, and a plurality of the first clamping rollers are respectively movably arranged in the two ends of the first wheel frame and are symmetrical to each other.

[0011] Preferably, the transfer structure includes a transfer frame, a plurality of brackets, a plurality of guide rollers and a second limiting assembly; the upper wall of the transfer frame is rectangular, and the four corners of the lower wall are provided with supporting legs, the transfer frame is fixedly arranged on the upper wall of the base and is located on the left side of the conveyor belt main body, a plurality of brackets are equidistantly provided in the middle of the upper wall of the left end of the transfer frame, one end of the plurality of brackets are equidistantly arranged on the transfer frame, and the brackets are located on the front and rear sides of the brackets, the plurality of guide rollers are movably arranged on the other end of the brackets, and the upper wall of the guide rollers and the upper wall of the conveyor belt main body are on the same horizontal plane, the second limiting assembly has the same structure as the first limiting assembly, the second limiting assembly is fixedly arranged in the middle of the lower wall of the transfer frame, and corresponds to the first limiting assembly.

[0012] Preferably, the transport structure includes a base, a second motor, a swivel seat, a pair of universal wheels, a pair of slide bars, a second hydraulic cylinder, a lifting platform, a swivel arm, a third motor, a second electric slide rail and a pair of brackets; the base is fixedly arranged at the middle of the upper wall at the left end of the base, the second motor is fixedly arranged at the middle of the upper wall of the base, the swivel seat is fixedly arranged on the driving end of the second motor, a pair of universal wheels are respectively fixedly arranged on the lower walls at both ends of the swivel seat, and the universal wheels are in contact with the upper wall of the base, the universal wheels are located on both sides of the second motor, one end of a pair of slide bars are respectively symmetrically arranged on the upper wall of the swivel seat, and one end of the second hydraulic cylinder is fixedly arranged on the swivel seat In the middle of the wall, the lifting platform is movably mounted on the other end of the slide rod, and the lifting platform is connected to the telescopic end of the second hydraulic cylinder. One end of the rotating arm is fixedly set on the lifting platform, and the third motor is fixedly embedded in the other end of the rotating arm. The middle part of the second electric slide is fixedly set on the third motor drive, and the second electric slide is provided with a second movable seat that moves relatively. A pair of the brackets are symmetrically arranged on the second movable seat of the second electric slide, one of the brackets is located at the bottom end of the second electric slide and below the transfer rack and corresponding to the bracket, and the other bracket is located at the top end of the second electric slide and above the guide roller.

[0013] A particleboard surface defect detection method comprises the following steps:

[0014] Step 1: Input the plate through the conveyor belt body and transport it from right to left;

[0015] Step 2: After the plate enters the conveyor belt body, the first limiting assembly and the first clamping roller in the second limiting assembly are driven to move relative to each other according to the width of the plate to achieve centering positioning;

[0016] Step 3: According to the width of the plate, the first electric slide rail is driven to move the camera and the infrared rangefinder, and the reciprocating assembly is used to form an interlaced reciprocating swing to detect the moving plate. The camera imaging is used for visual judgment and the infrared rangefinder is used to detect whether there are small pits.

[0017] Step 4: When the rear plate of the upper wall inspection enters the transfer mechanism, the horizontally transported plate is turned over by the transfer mechanism and moved from left to right for re-inspection;

[0018] Step 5: When the thickness of the side wall of the plate needs to be detected, the plate can be clamped and stood up with the help of the first limit assembly and the second limit assembly for limit movement detection.

[0019] The present invention proposes a particleboard surface defect detection device and method, which have the following beneficial effects: imaging detection based on visual technology is realized through the detection structure, and illumination is performed through the infrared rangefinder. If there are depressions or protrusions on the surface of the board, the distance measurement changes to realize double detection; and the reciprocating component in the detection structure cooperates with the driving component to realize the staggered swing of the two groups of detection components, thereby realizing rapid detection within a certain range or double detection of the same position; and the camera swing stroke is extended by the detection component to adjust the detection of boards of different widths; the equipment can also turn over the board during horizontal transportation and detection through the moving structure, thereby realizing double-sided detection of the board; by clamping the first limit component and the second limit component, the board is moved to the center or the board is vertically limited for edge detection, thereby making the detection of the board more comprehensive. In summary, the present invention has the following beneficial effects:

[0020] 1. Dual detection by vision and ranging: Combining vision technology for imaging detection and infrared rangefinder illumination detection, the plate surface can be inspected from different angles. Imaging detection can capture various defects on the plate surface, such as scratches, cracks, and uneven color. The infrared rangefinder can accurately detect depressions or protrusions on the plate surface and determine the presence of defects through changes in distance measurement. This dual detection method complements each other, greatly improving detection accuracy and reducing the possibility of missed detection and false detection.

[0021] 2. Interlaced swing and double inspection: The reciprocating assembly cooperates with the driving assembly to make the two sets of detection components swing in an interlaced manner. On the one hand, this interlaced swing can achieve rapid detection within a certain range, improving detection efficiency. On the other hand, double inspection at the same position can further ensure the accuracy of the detection results. For example, during the first inspection, some defects may not be accurately identified due to certain factors (such as light, angle, etc.). The second inspection can effectively avoid this situation.

[0022] 3. Adjustable camera swing stroke: The detection component can extend the camera swing stroke and can be flexibly adjusted according to the different widths of boards. This enables the equipment to adapt to the detection needs of various specifications of particleboards. There is no need to replace the detection equipment for boards of different widths, which improves the versatility and applicability of the equipment. For example, on the production line, when it is necessary to detect particleboards of different widths, you only need to simply adjust the camera swing stroke to quickly complete the adaptation of the equipment, saving time and cost.

[0023] 4. Double-sided inspection of boards: The rotating structure can turn the boards over during horizontal transportation inspection, thus realizing double-sided inspection of boards. Particleboards may have defects on both sides. Through flipping inspection, all surfaces of the boards can be fully covered, ensuring that there are no blind spots in the inspection, thus improving the integrity and reliability of the inspection.

[0024] 5. Clamping function of the limit assembly: The clamping function of the first limit assembly and the second limit assembly can move the plate to the center or limit the plate vertically for edge detection. During the detection process, the position accuracy of the plate is crucial to the accuracy of the detection results. Through the clamping of the limit assembly, it can ensure that the plate is always in the correct position during the detection process, avoiding detection errors caused by plate offset or shaking, thereby improving the accuracy and stability of the detection. For example, when performing edge detection, the vertical limit can ensure that the edge of the plate maintains a suitable distance and angle with the detection assembly, making the detection results more accurate.

[0025] 6. Multiple functions work together: The various technologies and components in this solution work together to form a highly efficient inspection system. From rapid staggered swing detection to flexible width adaptation, to comprehensive double-sided inspection and precise board positioning, each link is closely connected, making the entire inspection process smoother and more efficient. In a large-scale production environment, large quantities of particleboard can be inspected quickly and accurately to meet production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the assembly structure of the present invention;

[0027] Figure 2 Show the structural diagram of the conveyor belt body;

[0028] Figure 3 for Figure 1 Schematic diagram of the detection structure in ;

[0029] Figure 4 Schematic diagram of the structure splitting for detection;

[0030] Figure 5 Schematic diagram of the structure assembly for the detection structure;

[0031] Figure 6 A schematic diagram showing the structure of the first limit assembly is shown;

[0032] Figure 7 Showing a schematic diagram of the structure for the transfer structure;

[0033] Figure 8 A schematic diagram showing the structure of the second limit assembly is shown;

[0034] Figure 9 Schematic diagram of the disassembly structure for moving the structure;

[0035] Figure 10 It is a schematic diagram of the assembly structure of the moving structure;

[0036] Figure 11 for Figure 4 A local enlarged structural diagram of point A;

[0037] Figure 12 for Figure 4 Schematic diagram of the local enlarged structure at point B.

[0038] In the figure: 1. base, 2. conveyor belt body, 3. detection structure, 31. door frame, 32. control box, 33. first hydraulic cylinder, 34. reciprocating assembly, 341. drive frame, 342. first wheel shaft, 343. second wheel shaft, 344. third wheel shaft, 345. first bevel gear, 346. second bevel gear, 347. third gear, 35. drive assembly, 351. gear rack, 352. rack, 353. base, 354. first motor, 355. disc, 356. swing rod, 36. detection assembly, 361. support plate, 362. first electric slide rail, 363. Telescopic arm, 364. Camera, 365. Infrared rangefinder, 4. First limiting assembly, 41. First clamping slide rail, 42. First clamping frame, 43. First wheel frame, 44. First clamping roller, 5. Transfer structure, 51. Transfer frame, 52. Bracket, 53. Guide roller, 54. Second limiting assembly, 6. Moving structure, 61. Base, 62. Second motor, 63. Turntable, 64. Universal wheel, 65. Slide rod, 66. Second hydraulic cylinder, 67. Lifting platform, 68. Rotating arm, 69. Third motor, 70. Second electric slide rail, 71. Bracket, 8. Bracket. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] See also Figures 1-12 The present invention provides a technical solution: a particle board surface defect detection device, comprising a base 1, a conveyor belt body 2, a detection structure 3, a first limiting component 4, a transfer structure 5 and a transfer structure 6; the conveyor belt body 2 is fixedly arranged at the middle of the upper wall of the right end of the base 1, the detection structure 3 is fixedly arranged on the base 1 and is located above the middle of the conveyor belt body 2, the first limiting component 4 is fixedly arranged on the conveyor belt body 2, the transfer structure 5 is fixedly arranged on the left end of the base 1, and the transfer structure 5 corresponds to the conveyor belt body 2, and the transfer structure 6 is fixedly arranged at the middle of the left end of the base 1, and the transfer structure 6 corresponds to the transfer structure 5.

[0041] As a preferred solution, Figure 3 、 Figure 4 and Figure 5As shown, the detection structure 3 includes a gantry 31, a control box 32, a first hydraulic cylinder 33, a reciprocating assembly 34, a driving assembly 35 and a pair of detection assemblies 36; the gantry 31 is sleeved on the middle part of the conveyor belt body 2, and both ends of the gantry 31 are fixedly arranged on the upper wall of the base 1, the control box 32 is fixedly arranged on the front side wall of the gantry 31, one end of the first hydraulic cylinder 33 is fixedly arranged on the middle part of the inner upper wall of the gantry 31, the reciprocating assembly 34 is fixedly arranged on the telescopic end of the first hydraulic cylinder 33 and the reciprocating assembly 34 is located above the conveyor belt, the driving assembly 35 is fixedly arranged on the reciprocating assembly 34, a pair of detection assemblies (36) are symmetrically arranged on the reciprocating assembly 34, and the detection assemblies 36 are staggered and swung; a certain height is supported by the gantry 31, the equipment is driven by the control box 32, the reciprocating assembly 34 is driven to rise and fall by the first hydraulic cylinder 33, and the detection assembly 36 on the reciprocating assembly 34 is driven to swing staggered by the driving assembly 35, and detection is performed through the detection structure 3.

[0042] As a preferred solution, Figure 4 、 Figure 11 and Figure 12 As shown, the reciprocating assembly 34 includes a driving frame 341, a first axle 342, a second axle 343, a third axle 344, a pair of first bevel gears 345, a second bevel gear 346 and a third gear 347; the driving frame 341 is an E-shaped structure, and has three ends. The upper wall of the top of the driving frame 341 is fixedly set on the telescopic end of the first hydraulic cylinder 33, one end of the first axle 342 is movable through the top of the driving frame 341, one end of the second axle 343 is movable through the bottom of the driving frame 341, and the other end of the second axle 343 is movable through the middle of the first axle 342, one end of the third axle 344 is movable through the middle of the driving frame 341, and the third axle 344 is perpendicular to the first axle 342, and a pair of first bevel gears 345 are fixedly sleeved on the first axle 342. The first bevel gear 345 is located on one end of the shaft 342 and on one end of the second wheel shaft 343, and the first bevel gear 345 is symmetrically located on the third wheel shaft 344. The second bevel gear 346 is fixedly mounted on one end of the third wheel shaft 344, and the second bevel gear 346 is located between the first bevel gears 345. The second bevel gears 346 are respectively engaged with the first bevel gears 345. The third gear 347 is fixedly mounted on the other end of the third wheel shaft 344, and the third gear 347 is located on the right side of the driving frame 341. The third gear 347 is rotated by the force applied to it, driving the second bevel gear 346 on the third wheel shaft 344 to rotate. The second bevel gear 346 is engaged with the first bevel gear 345, so that the two first bevel gears 345 rotate in opposite directions, thereby driving the first wheel shaft 342 and the second wheel shaft 343 to rotate in opposite directions.

[0043] As a preferred solution, Figure 4 、 Figure 11 and Figure 12As shown, the driving assembly 35 includes a gear rack 351, a rack 352, a base 353, a first motor 354, a disc 355 and a swing rod 356; one end of the gear rack 351 is fixedly set on the right side wall of the driving frame 341 and is located above the third wheel shaft 344, the other end of the gear rack 351 is trapezoidal, a plurality of teeth are evenly spaced on the lower wall of the rack 352, and a sliding groove is opened on the upper wall of the rack 352 to fit with the other end of the gear rack 351, the rack 352 is movably sleeved on the other end of the gear rack 351, one end of the base 353 is fixedly set on the rear side wall of the driving frame 341, and the first motor 354 is fixedly set on the other end of the base 353 On, and the first motor 354 is located corresponding to the rear side of the rack 352, the disc 355 is fixedly mounted on the driving end of the first motor 354, one end of the swing rod 356 is movably connected to the upper wall of the disc 355, and the other end of the swing rod 356 is movably connected to the lower wall of the rear end of the rack 352; the disc 355 is driven to rotate by the first motor 354 on the base 353, and is movably connected through the swing rod 356 on the disc 355. As the disc 355 rotates, the rack 352 is pushed and pulled by the swing rod 356 to slide on the upper limit of the rack 351, and the reciprocating movement of the rack 352 can drive the third gear 347 to rotate forward and reverse.

[0044] As a preferred solution, Figure 4 As shown, a pair of detection components 36 are fixedly mounted on the other end of the first wheel shaft 342 and the other end of the second wheel shaft 343, and the detection components 36 are respectively located in an upper and lower staggered manner; the detection component 36 includes a support plate 361, a first electric slide 362, a telescopic arm 363, a camera 364 and an infrared rangefinder 365; one end of the support plate 361 is fixedly mounted on the other end of the first wheel shaft 342, the first electric slide 362 is fixedly arranged on the upper wall of the other end of the support plate 361, one end of the telescopic arm 363 is fixedly arranged on the first electric slide 362, and the telescopic arm 363 is fixedly mounted on the left and right The camera 364 is fixedly arranged on the lower wall of the other end of the telescopic arm 363, and the infrared rangefinder 365 is fixedly arranged on the lower wall of the other end of the telescopic arm 363 and close to the camera 364; the two groups of detection components 36 are driven to swing by the first axle 342 and the second axle 343 respectively, and the camera 364 and the infrared rangefinder 365 on the telescopic arm 363 are driven to move by the first electric slide rail 362, and the distance between the camera 364 and the first axle 342 is adjusted, that is, the radius of the swing is adjusted, thereby adjusting the swing amplitude to fit different plate widths.

[0045] As a preferred solution, Figure 6As shown, the first limiting assembly 4 includes a first clamping rail 41, a pair of first clamping frames 42, a plurality of first wheel frames 43 and a plurality of first clamping rollers 44; the first clamping rail 41 is fixedly arranged on the lower wall of the conveyor belt body 2, and first slide seats that move relatively are provided at both ends of the first clamping rail 41, a pair of first clamping frames 42 are both T-shaped, one end of a pair of first clamping frames 42 are respectively fixedly arranged on the first slide seats of the first clamping rail 41 and are respectively located symmetrically on the front and rear sides of the conveyor belt body 2, a plurality of first wheel frames 43 are all concave, and a plurality of first wheel frames 43 are divided into The upper walls of the first clamping frames 42 are equidistantly arranged, and both ends of the first wheel frame 43 are located above the conveyor belt body 2. Several first clamping rollers 44 are movably arranged in both ends of the first wheel frame 43 and are symmetrical to each other; the first clamping rollers 44 on the two first clamping frames 42 are driven to move relative to each other by the first clamping slide rail 41, and the plates are force-limited by the first clamping rollers 44. Since the first wheel frame 43 is concave, when the plates are conveyed horizontally, force is applied by the first clamping rollers 44 at the bottom end, and when the plates are erected, force is applied by the first clamping rollers 44 at both ends of the first wheel frame 43.

[0046] As a preferred solution, Figure 7 and Figure 8 As shown, the transfer structure 5 includes a transfer frame 51, a plurality of brackets 52, a plurality of guide rollers 53 and a second limit assembly 54; the upper wall of the transfer frame 51 is rectangular, and the four corners of the lower wall are provided with legs, the transfer frame 51 is fixedly arranged on the upper wall of the base 1 and is located on the left side of the conveyor belt body 2, and a plurality of brackets 8 are equidistantly opened in the middle of the upper wall of the left end of the transfer frame 51, and one end of the plurality of brackets 52 are equidistantly arranged on the transfer frame 51, and the brackets 52 are located on the front and rear sides of the brackets 8, and the plurality of guide rollers 53 are movably arranged on the other side of the brackets 52. On one end, the upper wall of the guide roller 53 is on the same horizontal plane as the upper wall of the conveyor belt body 2. The second limiting component 54 has the same structure as the first limiting component 4. The second limiting component 54 is fixedly arranged in the middle of the lower wall of the transfer frame 51 and corresponds to the first limiting component 4. The guide roller 53 on the transfer frame 51 is in the same horizontal plane as the conveyor belt body 2 to receive the moving plate. The space in the bracket 8 helps the moving structure 6 to lift it and change the surface. At the same time, the second limiting component 54 is used to ensure that the plate is always centered.

[0047] As a preferred solution, Figure 9 and Figure 10As shown, the transport structure 6 includes a base 61, a second motor 62, a swivel seat 63, a pair of universal wheels 64, a pair of slide bars 65, a second hydraulic cylinder 66, a lifting platform 67, a rotating arm 68, a third motor 69, a second electric slide rail 70 and a pair of brackets 71; the base 61 is fixedly arranged on the middle part of the upper wall of the left end of the base 1, the second motor 62 is fixedly arranged on the middle part of the upper wall of the base 61, the swivel seat 63 is fixedly arranged on the driving end of the second motor 62, a pair of universal wheels 64 are respectively fixedly arranged on the lower walls of both ends of the swivel seat 63, and the universal wheels 64 are in contact with the upper wall of the base 61, the universal wheels 64 are located on both sides of the second motor 62, one end of a pair of slide bars 65 are symmetrically arranged on the upper wall of the swivel seat 63, and one end of the second hydraulic cylinder 66 is fixedly arranged In the middle of the upper wall of the swivel seat 63, the lifting platform 67 is movably mounted on the other end of the slide rod 65, and the lifting platform 67 is connected to the telescopic end of the second hydraulic cylinder 66. One end of the rotating arm 68 is fixedly set on the lifting platform 67, and the third motor 69 is fixedly embedded in the other end of the rotating arm 68. The middle part of the second electric slide rail 70 is fixedly set on the drive of the third motor 69, and the second electric slide rail 70 is provided with a second movable seat that moves relatively. A pair of brackets 71 are respectively symmetrically arranged on the second movable seat of the second electric slide rail 70, one of which is located at the bottom end of the second electric slide rail 70 and below the transfer rack 51 and corresponding to the bracket 8, and the other bracket 71 is located at the top end of the second electric slide rail 70 and above the guide roller 53.

[0048] Working principle:

[0049] S1. First, after the equipment is powered on by the support of the base 1, the control box 32 on the door frame 31 in the detection structure 3 drives the equipment to control the conveyor belt body 2 to convey to the left or right;

[0050] S2. When detecting the plate wall, it is divided into two upper and lower walls, that is, the plate is placed horizontally and put into the conveyor belt body 2, and is transported from right to left through the conveyor belt body 2;

[0051] S3, then drive the first clamping rail 41 in the first limiting assembly 4, drive the symmetrically arranged first clamping frames 42 to move relative to each other, drive the first clamping rollers 44 on the first wheel frame 43 to move relative to each other, and then clamp the first clamping rollers 44 at the bottom of the first wheel frame 43 to the front and rear sides of the plate for centering and limiting, so that the plate limit moves from right to left;

[0052] S4. When the plate passes through the gantry 31 during movement, the first hydraulic cylinder 33 drives the detection assembly 36 to rise and fall to adjust the height for detection; the detection assembly 36 can detect defects on the upper wall surface; that is, the first motor 354 on the base of the drive assembly 35 drives the disc 355 to rotate, and the swing rod 356 is connected to the eccentric reciprocating motion of the disc 355 during the rotation stroke, thereby driving the rack 352 to move back and forth on the rack 351;

[0053] The forward and backward movement of the rack 352 drives the third gear 347 to rotate on the drive frame 341 in the reciprocating assembly 34 via the third axle 344, thereby driving the second bevel gear 346 to reciprocate. The second bevel gear 346 engages with the two first bevel gears 345, respectively, to drive the corresponding first axle 342 and second axle 343 to reciprocate in opposite directions.

[0054] The first wheel shaft 342 and the second wheel shaft 343 rotate back and forth in opposite directions to drive the two sets of detection components 36 to swing alternately. The camera 364 gradually scans and images the moving plate, and performs visual inspection based on the detection technology. At the same time, the infrared rangefinder 365 illuminates the upper surface of the plate. If there are slight depressions or protrusions, the distance changes, which can be used to detect defects.

[0055] During the detection process, due to the different widths of the plates, the first electric slide 362 on the support plate 361 can be driven to move the camera 364 and the infrared rangefinder 365 on the telescopic arm 363, thereby adjusting the distance between the camera 364 and the first wheel axle 342, that is, adjusting the swing radius length, thereby increasing the swing amplitude, that is, adjusting the width of the plate;

[0056] S5. When the plate moves horizontally through the door frame 31 and moves one end of the plate from the conveyor belt body 2 to the guide roller 53 on the transfer frame 51 of the transfer structure 5, the transfer structure 6 can be driven to lift and clamp the plate through the bracket 71 through the bracket 8, and drive the plate to flip over to achieve the turning, and then transport it from left to right for re-face inspection; and when the plate enters the guide roller 53 of the bracket 52, it is blocked and limited in the center by the second limit assembly 54;

[0057] S6. When the plate is turned over for inspection, the second hydraulic cylinder 66 on the rotating seat 63 is driven to drive the lifting platform 67 to rise on the slide bar 65, and the bracket 71 at the bottom of the vertical second electric slide 70 is passed through the bracket 8 to lift the plate. Then the second electric slide 70 is driven to move the bracket 71 relatively to clamp the plate. After clamping, the third motor 69 on the rotating arm 68 is driven to drive the second electric slide 70 to rotate 180 degrees to change the side and put it on the guide roller 53 and the left end of the conveyor belt body 2 again.

[0058] S7. When the inspected plate needs to be transferred, the second motor 62 on the base 61 can be driven to drive the rotating base 63 to rotate. The rotating base 63 is supported by the universal wheel 64 to move on the base 61 for auxiliary support, thereby reducing the force on the driving end of the second motor 62; thereby, the bracket 71 can be driven to rotate left and right to transfer the plate to other nearby equipment.

[0059] S8. The equipment can also be used for the detection of the four sides of the plate, that is, after the upper and lower sides of the plate are detected, when the plate enters the transfer structure 5, the bracket 71 is used to lift and clamp the plate, and then the third motor 69 is used to drive it to turn 90 degrees to make the plate upright, and drive the first limit component 4 and the second limit component 54 to clamp and limit through the first clamping roller 44 on the concave first wheel frame 43, and also transport and move for detection; at this time, the two side edges of the plate can only be automatically flipped and detected with the help of the transfer structure 6, and the other two sides need to be manually flipped and placed, or the transfer frame 51 in the transfer structure 5 can be set to rotate 360 ​​degrees for matching and replacement.

[0060] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A particleboard surface defect detection device, characterized in that: The invention comprises a base (1), a conveyor belt body (2), a detection structure (3), a first limiting component (4), a transfer structure (5) and a transfer structure (6); the conveyor belt body (2) is fixedly arranged on the middle part of the upper wall of the right end of the base (1); the detection structure (3) is fixedly arranged on the base (1) and is located above the middle part of the conveyor belt body (2); the first limiting component (4) is fixedly arranged on the conveyor belt body (2); the transfer structure (5) is fixedly arranged on the left end of the base (1), and the transfer structure (5) corresponds to the conveyor belt body (2); the transfer structure (6) is fixedly arranged on the middle part of the left end of the base (1), and the transfer structure (6) corresponds to the transfer structure (5); the conveyor belt body (2) is used for the plate to enter the equipment and move; the detection structure (3) is used for surface defect detection of plates of different widths; the transfer structure (5) is used for the plate to stop after detection; and the transfer structure (6) is used for turning over the plate; The detection structure (3) includes a door frame (31), a control box (32), a first hydraulic cylinder (33), a reciprocating assembly (34), a driving assembly (35), and a pair of detection assemblies (36); The gantry (31) is sleeved on the middle part of the conveyor belt body (2), and both ends of the gantry (31) are fixedly arranged on the upper wall of the base (1), the control box (32) is fixedly arranged on the front side wall of the gantry (31), one end of the first hydraulic cylinder (33) is fixedly arranged on the middle part of the inner upper wall of the gantry (31), the reciprocating assembly (34) is fixedly arranged on the telescopic end of the first hydraulic cylinder (33), and the reciprocating assembly (34) is located above the conveyor belt, the driving assembly (35) is fixedly arranged on the reciprocating assembly (34), a pair of the detection assemblies (36) are symmetrically arranged on the reciprocating assembly (34), and the detection assemblies (36) swing in an interlaced manner, and the detection assembly (36) includes a support plate (361), a first electric slide rail (362), a telescopic arm (363), a camera (364) and an infrared rangefinder (365); The reciprocating assembly (34) includes a driving frame (341), a first wheel shaft (342), a second wheel shaft (343), a third wheel shaft (344), a pair of first bevel gears (345), a second bevel gear (346), and a third gear (347); The driving frame (341) is an E-shaped structure and has three ends. The upper wall of the top of the driving frame (341) is fixedly arranged on the telescopic end of the first hydraulic cylinder (33). One end of the first wheel shaft (342) is movable through the top of the driving frame (341). One end of the second wheel shaft (343) is movable through the bottom of the driving frame (341). The other end of the second wheel shaft (343) is movable through the middle of the first wheel shaft (342). One end of the third wheel shaft (344) is movable through the middle of the driving frame (341). The third wheel shaft (344) is perpendicular to the first wheel shaft (342). A pair of the first inclined wheels (342) and the third wheel shaft (344) are perpendicular to the first wheel shaft (342). The gears (345) are fixedly mounted on one end of the first wheel shaft (342) and one end of the second wheel shaft (343), and the first bevel gear (345) is located symmetrically on the upper and lower sides of the third wheel shaft (344). The second bevel gear (346) is fixedly mounted on one end of the third wheel shaft (344), and the second bevel gear (346) is located between the first bevel gears (345). The second bevel gears (346) are respectively engaged with the first bevel gears (345). The third gear (347) is fixedly mounted on the other end of the third wheel shaft (344), and the third gear (347) is located on the right side of the driving frame (341).

2. A particleboard surface defect detection device according to claim 1, characterized in that: The driving assembly (35) includes a gear rack (351), a rack (352), a base (353), a first motor (354), a disc (355), and a swing rod (356); One end of the gear rack (351) is fixedly arranged on the right side wall of the driving frame (341) and is located above the third wheel shaft (344). The other end of the gear rack (351) is trapezoidal. The lower wall of the rack (352) is provided with a plurality of teeth at equal intervals, and the upper wall of the rack (352) is provided with a sliding groove that fits with the other end of the gear rack (351). The rack (352) is movably mounted on the other end of the gear rack (351). One end of the base (353) is fixedly provided with a plurality of teeth. The first motor (354) is fixedly mounted on the other end of the base (353), and the first motor (354) is located at the rear side of the rack (352). The disc (355) is fixedly mounted on the driving end of the first motor (354). One end of the swing rod (356) is movably connected to the upper wall of the disc (355), and the other end of the swing rod (356) is movably connected to the lower wall of the rear end of the rack (352).

3. A particleboard surface defect detection device according to claim 2, characterized in that: A pair of detection components (36) are respectively fixedly mounted on the other end of the first wheel shaft (342) and the other end of the second wheel shaft (343), and the detection components (36) are respectively located in an upper and lower staggered manner; One end of the support plate (361) is fixedly mounted on the other end of the first wheel axle (342); the first electric slide rail (362) is fixedly arranged on the upper wall of the other end of the support plate (361); one end of the telescopic arm (363) is fixedly arranged on the first electric slide rail (362), and the telescopic arm (363) moves left and right; the camera (364) is fixedly arranged on the lower wall of the other end of the telescopic arm (363); and the infrared rangefinder (365) is fixedly arranged on the lower wall of the other end of the telescopic arm (363) and is close to the camera (364).

4. A particleboard surface defect detection device according to claim 3, characterized in that: The first limiting assembly (4) comprises a first clamping slide rail (41), a pair of first clamping frames (42), a plurality of first wheel frames (43), and a plurality of first clamping rollers (44); The first clamping rail (41) is fixedly arranged on the lower wall of the conveyor belt body (2), and first slide seats that can move relatively are arranged at both ends of the first clamping rail (41). A pair of the first clamping frames (42) are both T-shaped, and one end of the pair of the first clamping frames (42) is respectively fixedly arranged on the first slide seat of the first clamping rail (41) and is respectively located symmetrically on the front and rear sides of the conveyor belt body (2). A plurality of the first wheel frames (43) are all concave, and a plurality of the first wheel frames (43) are respectively equidistantly arranged on the upper wall of the first clamping frame (42), and both ends of the first wheel frame (43) are both located above the conveyor belt body (2). A plurality of the first clamping rollers (44) are respectively movably arranged in the two ends of the first wheel frame (43) and are symmetrical to each other.

5. The particleboard surface defect detection device according to claim 4, characterized in that: The transfer structure (5) includes a transfer frame (51), a plurality of brackets (52), a plurality of guide rollers (53) and a second limiting component (54); The upper wall of the transfer frame (51) is rectangular, and legs are provided at the four corners of the lower wall. The transfer frame (51) is fixedly arranged on the upper wall of the base (1) and is located on the left side of the conveyor belt body (2). A plurality of brackets (8) are equidistantly provided in the middle of the upper wall of the left end of the transfer frame (51). One end of a plurality of the brackets (52) is equidistantly arranged on the transfer frame (51), and the brackets (52) are located on the front and rear sides of the brackets (8). A plurality of the guide rollers (53) are movably provided on the other end of the brackets (52), and the upper wall of the guide rollers (53) is on the same horizontal plane as the upper wall of the conveyor belt body (2). The second limiting assembly (54) has the same structure as the first limiting assembly (4). The second limiting assembly (54) is fixedly arranged in the middle of the lower wall of the transfer frame (51) and corresponds to the first limiting assembly (4).

6. The particleboard surface defect detection device according to claim 5, characterized in that: The transport structure (6) includes a base (61), a second motor (62), a rotating seat (63), a pair of universal wheels (64), a pair of slide bars (65), a second hydraulic cylinder (66), a lifting platform (67), a rotating arm (68), a third motor (69), a second electric slide rail (70) and a pair of brackets (71); The base (61) is fixedly arranged on the middle of the upper wall of the left end of the base (1), the second motor (62) is fixedly arranged on the middle of the upper wall of the base (61), the rotating seat (63) is fixedly arranged on the driving end of the second motor (62), a pair of universal wheels (64) are respectively fixedly arranged on the lower walls of the two ends of the rotating seat (63), and the universal wheels (64) are fitted with the upper wall of the base (61), the universal wheels (64) are located on both sides of the second motor (62), one end of a pair of sliding rods (65) are respectively symmetrically arranged on the upper wall of the rotating seat (63), one end of the second hydraulic cylinder (66) is fixedly arranged on the middle of the upper wall of the rotating seat (63), the lifting platform (67) is movably sleeved on the other end of the sliding rod (65), and the lifting platform (67) is symmetrical with the second The telescopic ends of the hydraulic cylinder (66) are connected, one end of the rotating arm (68) is fixedly set on the lifting platform (67), the third motor (69) is fixedly embedded in the other end of the rotating arm (68), the middle part of the second electric slide rail (70) is fixedly set on the drive of the third motor (69), and the second electric slide rail (70) is provided with a second movable seat that moves relatively, and a pair of the brackets (71) are symmetrically arranged on the second movable seat of the second electric slide rail (70), one of the brackets (71) is located at the bottom end of the second electric slide rail (70) and below the transfer frame (51) and corresponding to the bracket (8), and the other bracket (71) is located at the top end of the second electric slide rail (70) and above the guide roller (53).

7. A particleboard surface defect detection method, applied to a particleboard surface defect detection device as claimed in claim 6, characterized in that: The following steps are involved: Step 1: Input the plate through the conveyor belt body (2) and convey it from right to left; Step 2: After the plate enters the conveyor belt body (2), the first limiting assembly (4) and the first clamping roller (44) in the second limiting assembly (54) are driven to move relative to each other according to the width of the plate to achieve centering positioning; Step 3: According to the width of the plate, the first electric slide rail (362) is driven to drive the camera (364) and the infrared rangefinder (365) to move, and the reciprocating assembly (34) is used to form an interlaced reciprocating swing to detect the moving plate, and the camera (364) is used to perform a visual judgment based on the imaging, and the infrared rangefinder (365) is used to detect whether there are small pits; Step 4: When the rear side plate of the upper wall surface inspection enters the transfer structure (5), the horizontally transported plate is turned over by the transfer structure (6) and moved from left to right for re-inspection; Step 5: When it is necessary to detect the thickness of the side wall of the plate, the plate can be clamped and erected with the help of the first limiting component (4) and the second limiting component (54) to perform limiting movement detection.

Images