Surface flatness detection device and detection method for soft light marble

Abstract

The invention relates to the technical field of surface flatness detection, and discloses a surface flatness detection device and a detection method for soft light marble. The one-by-one feeding mechanism grabs the plate-shaped material located on the topmost layer from the interior of the input lifting mechanism, and the plate-shaped material is placed at the top end of the conveying and cleaning mechanism with the to-be-detected surface facing upwards according to the orientation of the to-be-detected surface of the plate-shaped material; the defect detection mechanism is provided with the lifting conveying unit, so that later flatness detection failure caused by wrong placement of the to-be-detected plate-shaped material in upstream production can be prevented, and when the lifting conveying unit conveys the plate-shaped material to one end of the defect detection mechanism and the plate-shaped material passes through the cleaning unit, the to-be-detected surface of the plate-shaped material can be cleaned; the plate-shaped material surface flatness detection device can fully guarantee the cleanliness degree of the to-be-detected surface of a plate-shaped material, can effectively guarantee the rear-end detection precision, and in the internal conveying process of the defect detection mechanism, the passing plate-shaped material is subjected to surface flatness detection and then is classified and output from the directional output mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of surface flatness detection, in particular to a surface flatness detection device and a detection method for soft light marble. Background Art

[0002] Surface flatness detection equipment is an instrument used to measure the flatness of an object's surface. This type of equipment usually uses optical methods for measurement. It can measure parameters such as thickness, TTV (Total Thickness Variation), LTV (Local Thickness Variation), curvature, flatness, etc. without contacting the surface of the object; among them, surface flatness detection equipment plays a key role in many industries, especially in the fields of construction and road construction. This type of equipment can effectively monitor the flatness of the ground, walls and roads to ensure that the quality of the project meets the standards. In large-scale infrastructure projects, such as highway construction and urban rail transit projects, the application of these devices is indispensable and directly affects the safety and durability of the project.

[0003] In the prior art, conventional surface flatness detection equipment detects materials with a relatively small dead weight. When performing surface flatness detection on marble, conventional manipulators are placed in a manner that makes it difficult to stably grasp heavy marble materials, which makes loading and unloading of materials inconvenient during detection, and is prone to collisions and other damage to the surface flatness detection equipment. At the same time, if dust and impurities adhere to the surface of the marble during detection, it will affect the detection accuracy of the surface flatness detection equipment, resulting in a large error in the actual results. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a surface flatness detection device and a detection method for soft light marble.

[0005] In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions: a surface flatness detection device, which comprises an input lifting mechanism, a one-by-one feeding mechanism, a conveying and cleaning mechanism, a defect detection mechanism, and a directional output mechanism in sequence. The input lifting mechanism can temporarily store a plurality of stacked plate-like materials to be detected. The one-by-one feeding mechanism grabs the plate-like material on the top layer from the input lifting mechanism, and places the plate-like material on the top of the conveying and cleaning mechanism with the surface to be detected facing upward according to the orientation of the surface to be detected of the plate-like material; the conveying and cleaning mechanism comprises a lifting and conveying unit and a cleaning unit, and the cleaning unit is fixed directly above the lifting and conveying unit, and the lifting and conveying unit can be lifted at one end close to the defect detection mechanism. When the lifting and conveying unit conveys the plate-like material to one end of the defect detection mechanism and passes through the cleaning unit, the surface to be detected of the plate-like material can be cleaned; the defect detection mechanism includes a detection conveyor belt, an irradiation detection unit and two shielding curtains, the two shielding curtains are respectively arranged on both sides of the irradiation detection unit, and when the detection conveyor belt conveys the plate-like material to the bottom of the irradiation detection unit, the two shielding curtains can block external light, and the irradiation detection unit performs surface flatness detection on the plate-like material passing through; the directional output mechanism includes a qualified channel and a defective channel, and the plate-like material output from the detection conveyor belt can be classified into qualified and defective according to the detection results of the irradiation detection unit, and the plate-like material can be input into the qualified channel and the defective channel respectively.

[0006] Preferably, the input lifting mechanism includes a lifting plate and a plurality of lifting cylinders, the lifting plate is fixed between the movable ends of each of the lifting cylinders, and each of the lifting cylinders can synchronously extend and retract to drive the lifting plate to move up and down; each of the lifting cylinders can lift the plate-like material to the same height of thickness each time it drives the lifting plate to rise, and lift the plate-like material at the top of a plurality of plate-like materials stacked in a whole stack placed on top of the lifting plate to the same position.

[0007] Preferably, the one-by-one feeding mechanism includes a transfer conveying unit, a transverse conveying unit, a flipping unit and a return conveying unit; the transfer conveying unit is arranged at the top of the input lifting mechanism, and the transfer conveying unit drives the topmost plate-like material to be conveyed to the top of the transverse conveying unit; the flipping unit is arranged above the transverse conveying unit, and the return conveying unit is arranged on one side of the transverse conveying unit.

[0008] Preferably, when the surface to be detected of the plate-like material conveyed by the transverse conveying unit faces upward, the transverse conveying unit continues to convey the plate-like material to one end of the conveying and cleaning mechanism; when the surface to be detected of the plate-like material conveyed by the transverse conveying unit faces downward, the flipping unit can grab the plate-like material from the transverse conveying unit, and after the flipping unit flips the plate-like material, it places the plate-like material with the surface to be detected facing upward on the return conveying unit, and the return conveying unit can convey the flipped plate-like material back to the transverse conveying unit with the surface to be detected facing upward.

[0009] Preferably, the transfer conveying unit, the lateral conveying unit and the return conveying unit all include conveying belts, and friction is generated between the conveying belts corresponding to the transfer conveying unit, the lateral conveying unit and the return conveying unit and the contacted plate-like materials, thereby driving the plate-like materials to move along the directions corresponding to the transfer conveying unit, the lateral conveying unit and the return conveying unit; the flipping unit includes a flipping shaft and a flipping arm, one end of the flipping arm is fixed to the flipping shaft, and the other end of the flipping arm is provided with a flipping suction cup, and under the rotation of the flipping shaft, the flipping arm can drive the plate-like materials grasped by the flipping suction cup to flip.

[0010] Preferably, the lifting and conveying unit includes a lifting support and a lifting conveyor belt. The end of the lifting conveyor belt away from the defect detection mechanism is rotatably connected to the lifting support, and the end of the lifting conveyor belt close to the defect detection mechanism is rotatably connected through a lifting cylinder. Under the telescopic action of the lifting cylinder, the end of the lifting conveyor belt close to the defect detection mechanism can be lifted.

[0011] Preferably, the cleaning unit includes a connecting bracket and a plurality of cleaning rollers, the bottom end of the connecting bracket is fixed to the lifting conveyor belt, and the distance between the connecting bracket and the lifting conveyor belt remains constant; each of the cleaning rollers can rotate, and when each of the cleaning rollers rotates, the surface to be inspected of the plate-like material passing through each of the cleaning rollers is cleaned.

[0012] Preferably, the irradiation detection unit includes a detection light source and a reflected light receiver, the detection light source can output light of uniform light intensity in the direction of the detection conveyor belt, the reflected light receiver can receive light reflected from the plate-like material, and the reflected light receiver can judge the flatness of the plate-like material according to the light intensity of the light reflected from the plate-like material; the bottom end of the shielding curtain is provided with a cutout, and after the plate-like material passes through the shielding curtain, the shielding curtain can restore the light-shielding state.

[0013] Preferably, the directional output mechanism also includes a reversing unit, which includes a sliding support, a reversing drive cylinder and a reversing conveyor belt, and the reversing conveyor belt is arranged at the top of the sliding support; the plate-like material output from the detection conveyor belt is first input to the top of the reversing conveyor belt, and under the drive of the reversing drive cylinder, the reversing conveyor belt moves according to the classification of qualified and defective plate-like materials, and is connected with the qualified channel and the defective channel respectively, and the plate-like materials are output according to the classification of qualified and defective.

[0014] A detection method for soft light marble uses the above-mentioned surface flatness detection device, including the following steps: a whole pile of soft light marble is first sent into an input lifting mechanism by a forklift; the feeding mechanism grabs the soft light marble located on the top layer from the inside of the input lifting mechanism one by one, and according to the orientation of the surface to be detected of the soft light marble, the surface to be detected of the soft light marble is placed on the top of the conveying and cleaning mechanism with the surface to be detected facing upward; during the process of the soft light marble being conveyed from the inside of the conveying and cleaning mechanism to one end of the defect detection mechanism, the surface to be detected of the soft light marble is cleaned; during the process of conveying inside the defect detection mechanism, the surface flatness of the soft light marble passing through is detected; and according to the detection of the defect detection mechanism, the soft light marble is output from the directional output mechanism according to the classification of qualified and defective.

[0015] Compared with the prior art, the present invention provides a surface flatness detection device and a detection method for soft light marble, which have the following beneficial effects: 1. This surface flatness detection device, under the action of the feeding mechanism one by one, grabs the plate-like material located at the top layer from the inside of the input lifting mechanism, and places the plate-like material with the surface to be detected facing upward on the top of the conveying and cleaning mechanism according to the orientation of the surface to be detected of the plate-like material, so as to prevent the plate-like material to be detected from being placed incorrectly in the upstream production and causing the subsequent flatness detection to fail. When the lifting and conveying unit conveys the plate-like material to one end of the defect detection mechanism and passes through the cleaning unit, the surface to be detected of the plate-like material can be cleaned, so as to fully ensure the cleanliness of the surface to be detected of the plate-like material, and effectively ensure the accuracy of the rear-end detection. In the process of conveying inside the defect detection mechanism, the surface flatness of the plate-like material passing through is detected and then classified and output from the directional output mechanism; 2. In the surface flatness detection device, when the surface to be detected of the plate-like material conveyed by the transverse conveying unit faces upward, the transverse conveying unit continues to convey the plate-like material to one end of the conveying and cleaning mechanism; when the surface to be detected of the plate-like material conveyed by the transverse conveying unit faces downward, the turning shaft of the turning unit rotates to drive the turning arm to drive the turning suction cup to rotate to the top of the transverse conveying unit, and the plate-like material is grasped by the turning suction cup, and the surface to be detected of the plate-like material can be placed on the return conveying unit with the surface to be detected facing upward by turning the turning arm, and the return conveying unit can convey the turned plate-like material back to the transverse conveying unit with the surface to be detected facing upward, so as to ensure that the surface to be detected of the plate-like material can be input into the conveying and cleaning mechanism and the defect detection mechanism in an upward state, so as to ensure the cleaning effectiveness of the conveying and cleaning mechanism and the surface flatness detection effectiveness of the defect detection mechanism; 3. This surface flatness detection device can lift one end of the lifting conveyor belt close to the defect detection mechanism through the telescopic effect of the lifting cylinder, so that the lifting and conveying unit can adapt to different rear-end heights. The lifting and conveying unit can also be fine-tuned at one end of the lifting and conveying unit close to the defect detection mechanism according to the thickness of the plate-like material to avoid the plate-like material being too thick to be conveyed into the defect detection mechanism. Then, each cleaning roller can be rotated. Under the rotation of each cleaning roller, the surface to be detected of the plate-like material passing through each cleaning roller is cleaned, so as to fully ensure the cleanliness of the surface to be detected of the plate-like material, and effectively ensure the accuracy of the rear-end detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is one of the three-dimensional structural schematic diagrams of a surface flatness detection device of the present invention; Figure 2 This is a second schematic diagram of the three-dimensional structure of a surface flatness detection device of the present invention; Figure 3 This is one of the three-dimensional structural schematic diagrams of an input lifting mechanism and a one-by-one feeding mechanism of a surface flatness detection device of the present invention; Figure 4 The second schematic diagram of the three-dimensional structure of the input lifting mechanism and the one-by-one feeding mechanism of the surface flatness detection device of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of a conveying and cleaning mechanism and a defect detection mechanism of a surface flatness detection device of the present invention; Figure 6 It is a schematic diagram of the internal three-dimensional structure of a conveying and cleaning mechanism and a defect detection mechanism of a surface flatness detection device of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of a conveying and cleaning mechanism of a surface flatness detection device of the present invention; Figure 8The figure is a three-dimensional structural schematic diagram of a directional output mechanism of a surface flatness detection device of the present invention.

[0017] In the figure: 1. input lifting mechanism; 11. lifting plate; 12. lifting cylinder; 2. one-by-one feeding mechanism; 21. transfer conveying unit; 22. lateral conveying unit; 23. flip unit; 231. flip shaft; 232. flip arm; 233. flip suction cup; 24. return conveying unit; 3. conveying and cleaning mechanism; 31. lifting conveying unit; 311. lifting support; 312. lifting conveyor belt; 313. lifting cylinder; 32. cleaning unit; 321. connecting bracket; 322. cleaning roller; 4. defect detection mechanism; 41. detection conveyor belt; 42. irradiation detection unit; 43. shielding curtain; 5. directional output mechanism; 51. qualified channel; 52. defect channel; 53. reversing unit; 531. sliding support; 532. reversing drive cylinder; 533. reversing conveyor belt. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0019] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a surface flatness detection device and a detection method for soft light marble.

[0020] Example 1: Please refer to Figure 1-Figure 8A surface flatness detection device comprises an input lifting mechanism 1, a feeding mechanism 2, a conveying and cleaning mechanism 3, a defect detection mechanism 4, and a directional output mechanism 5 in sequence. The input lifting mechanism 1 can temporarily store a plurality of stacked plate-like materials to be detected. The feeding mechanism 2 grabs the plate-like materials on the top layer from the input lifting mechanism 1, and places the plate-like materials on the top of the conveying and cleaning mechanism 3 with the surface to be detected facing upward according to the orientation of the surface to be detected of the plate-like materials; the conveying and cleaning mechanism 3 comprises a lifting and conveying unit 31 and a cleaning unit 32. The cleaning unit 32 is fixed directly above the lifting and conveying unit 31. The end of the lifting and conveying unit 31 close to the defect detection mechanism 4 can be lifted. When the lifting and conveying unit 31 is moved toward the defect detection mechanism 4, the cleaning unit 32 is moved upward. When the plate-like material is transported at one end and passes through the cleaning unit 32, the surface to be inspected of the plate-like material can be cleaned; the defect detection mechanism 4 includes a detection conveyor belt 41, an irradiation detection unit 42 and two shielding curtains 43, the two shielding curtains 43 are respectively arranged on both sides of the irradiation detection unit 42, when the detection conveyor belt 41 transports the plate-like material to the bottom of the irradiation detection unit 42, the two shielding curtains 43 can block external light, and the irradiation detection unit 42 performs surface flatness detection on the passing plate-like material; the directional output mechanism 5 includes a qualified channel 51 and a defective channel 52, the plate-like material output from the detection conveyor belt 41 can be classified into the qualified channel 51 and the defective channel 52 according to the detection results of the irradiation detection unit 42, and the plate-like material can be input into the qualified channel 51 and the defective channel 52 respectively according to the qualified and defective classification.

[0021] Among them, this type of surface flatness detection device can be used to detect plate-like materials, and is particularly suitable for plate-like materials with only one side that needs to be detected for flatness, such as ceramic tiles, marble tiles, single-coated steel plates, etc. First, the plate-like materials to be detected are sent into the input lifting mechanism 1 in the form of a whole stack using a forklift (other conveying means can also be used, which will not be repeated here), and then under the action of the feeding mechanism 2 one by one, the plate-like materials on the top layer are grabbed from the inside of the input lifting mechanism 1, and according to the orientation of the surface to be detected of the plate-like material, the surface to be detected of the plate-like material is placed upward on the top of the conveying and cleaning mechanism 3, which can prevent the plate-like materials to be detected from being placed incorrectly in the upstream production, resulting in the failure of the subsequent flatness detection. Since the lifting and conveying unit 31 can be lifted at one end close to the defect detection mechanism 4, the lifting and conveying unit 31 can adapt to the height of different rear ends (defect detection mechanisms 4), and the lifting and conveying unit 31 can also be moved close to the defect detection mechanism 4 according to the thickness of the plate-like material. One end of the mechanism 4 is fine-tuned to prevent the plate material from being too thick to be transported into the defect detection mechanism 4, and when the lifting and conveying unit 31 transports the plate material to one end of the defect detection mechanism 4 and passes through the cleaning unit 32, the surface to be inspected of the plate material can be cleaned to fully ensure the cleanliness of the surface to be inspected of the plate material, and the accuracy of the rear-end detection can be effectively guaranteed. Then the plate material is continued to be transported by the detection conveyor belt 41. When the detection conveyor belt 41 transports the plate material to the bottom of the irradiation detection unit 42, the two shielding curtains 43 can block external light, and the irradiation detection unit 42 performs surface flatness detection on the plate material passing through. The plate material output from the detection conveyor belt 41 can be input into the qualified channel 51 and the defective channel 52 according to the detection results of the irradiation detection unit 42, and the plate material can be output according to the qualified and defective classifications, so as to complete the surface flatness detection of the plate material.

[0022] Among them, the technology of detecting the uniformity of the illumination intensity of reflected light through uniform illumination is a common technical solution in the prior art. In this embodiment, the detection light source can be used to illuminate the uniform intensity of light in the direction of the detection conveyor belt 41, and the reflected light receiver can receive the light reflected from the plate-like material. The reflected light receiver receives the reflected light intensity reflected by the plate-like material at multiple points, and after taking the average value, determines the degree of deviation between the reflected light intensity at each point and the average reflected light intensity. When the deviation is greater than 5% (the specific deviation can be adjusted according to actual conditions), the plate-like material is identified as a defective material.

[0023] Example 2: Please refer to Figure 1-Figure 8, which is different from the above-mentioned embodiments, is that the input lifting mechanism 1 comprises a lifting plate 11 and a plurality of lifting cylinders 12, the lifting plate 11 is fixed to the movable ends of the lifting cylinders 12, and the lifting cylinders 12 can synchronously extend and retract to drive the lifting plate 11 to move up and down; each lifting cylinder 12 can lift the plate-like material to the same height of thickness each time it drives the lifting plate 11 to rise, and lift the plate-like material at the top of the stack of multiple plate-like materials placed on the top of the lifting plate 11 to the same position.

[0024] The one-by-one feeding mechanism 2 includes a transfer conveying unit 21, a transverse conveying unit 22, a flipping unit 23 and a return conveying unit 24; the transfer conveying unit 21 is arranged at the top of the input lifting mechanism 1, and the transfer conveying unit 21 drives the topmost plate-like material to be conveyed to the top of the transverse conveying unit 22; the flipping unit 23 is arranged above the transverse conveying unit 22, and the return conveying unit 24 is arranged on one side of the transverse conveying unit 22.

[0025] When the surface to be detected of the plate-like material conveyed by the transverse conveying unit 22 faces upward, the transverse conveying unit 22 continues to convey the plate-like material to one end of the conveying and cleaning mechanism 3; when the surface to be detected of the plate-like material conveyed by the transverse conveying unit 22 faces downward, the flipping unit 23 can grab the plate-like material from the transverse conveying unit 22, and after the flipping unit 23 flips the plate-like material, it places the plate-like material on the return conveying unit 24 with the surface to be detected facing upward, and the return conveying unit 24 can convey the flipped plate-like material back to the transverse conveying unit 22 with the surface to be detected facing upward.

[0026] The transfer conveying unit 21, the lateral conveying unit 22 and the return conveying unit 24 all include conveying belts, and friction is generated between the conveying belts corresponding to the transfer conveying unit 21, the lateral conveying unit 22 and the return conveying unit 24 and the contacted plate-like materials, thereby driving the plate-like materials to move along the directions corresponding to the transfer conveying unit 21, the lateral conveying unit 22 and the return conveying unit 24; the flipping unit 23 includes a flipping shaft 231 and a flipping arm 232, one end of the flipping arm 232 is fixed to the flipping shaft 231, and the other end of the flipping arm 232 is provided with a flipping suction cup 233, and under the rotation of the flipping shaft 231, the flipping arm 232 can drive the plate-like materials grasped by the flipping suction cup 233 to flip.

[0027] During specific use, the plate-like materials to be inspected are placed in the form of a whole stack on the top of the lifting plate 11 located at the lowest point, and then the lifting plate 11 is driven by each lifting cylinder 12 to drive the whole stack of plate-like materials to rise, and the plate-like material at the top of the whole stack of multiple plate-like materials placed on the top of the lifting plate 11 is lifted to a position that fits with the transfer and conveying unit 21, and after each transfer and conveying unit 21 conveys a plate-like material, each lifting cylinder 12 drives the lifting plate 11 to rise and lifts the plate-like material to a height equal to the thickness, and lifts the next plate-like material placed on the top of the lifting plate 11 to fit with the transfer and conveying unit 21, so as to cooperate with the one-by-one conveying of the transfer and conveying unit 21; when the surface to be inspected of the plate-like material conveyed by the lateral conveying unit 22 faces upward, the lateral conveying unit 22 continues to The plate-like material is transported to one end of the conveying and cleaning mechanism 3; when the surface to be inspected of the plate-like material conveyed by the lateral conveying unit 22 faces downward, the flip shaft 231 of the flip unit 23 rotates to drive the flip arm 232 to drive the flip suction cup 233 to rotate to the top of the lateral conveying unit 22, and the plate-like material is grabbed by the flip suction cup 233, and the surface to be inspected of the plate-like material can be placed on the return conveying unit 24 with the surface to be inspected facing upward by flipping the flip arm 232. The return conveying unit 24 can transport the flipped plate-like material back to the lateral conveying unit 22 with the surface to be inspected facing upward, thereby ensuring that the surface to be inspected of the plate-like material can be input into the conveying and cleaning mechanism 3 and the defect detection mechanism 4 in an upward state, thereby ensuring the cleaning effectiveness of the conveying and cleaning mechanism 3 and the detection effectiveness of the surface flatness of the defect detection mechanism 4.

[0028] Among them, the orientation of the surface to be inspected of the above-mentioned plate-like material can be determined manually or captured and determined by a CCD camera. Among them, the technology of capturing and determining the orientation of the surface to be inspected of the plate-like material with a CCD camera is a common technical solution in the prior art and will not be repeated here.

[0029] Example 3: Please refer to Figure 1-Figure 8 The difference from the above-mentioned embodiment is that the lifting and conveying unit 31 includes a lifting support 311 and a lifting conveyor belt 312. The end of the lifting conveyor belt 312 away from the defect detection mechanism 4 is rotatably connected to the lifting support 311, and the end of the lifting conveyor belt 312 close to the defect detection mechanism 4 is rotatably connected through a lifting cylinder 313. Under the telescopic action of the lifting cylinder 313, the end of the lifting conveyor belt 312 close to the defect detection mechanism 4 can be lifted.

[0030] The cleaning unit 32 includes a connecting bracket 321 and a plurality of cleaning rollers 322. The bottom end of the connecting bracket 321 is fixed to the lifting conveyor belt 312, and the distance between the connecting bracket 321 and the lifting conveyor belt 312 remains constant. Each cleaning roller 322 can rotate, and when each cleaning roller 322 rotates, the surface to be inspected of the plate-like material passing through each cleaning roller 322 is cleaned.

[0031] Therefore, through the telescopic effect of the lifting cylinder 313, the end of the lifting conveyor belt 312 close to the defect detection mechanism 4 can be lifted, so that the lifting and conveying unit 31 can adapt to different rear end (defect detection mechanism 4) heights, and the lifting and conveying unit 31 can also be fine-tuned at one end close to the defect detection mechanism 4 according to the thickness of the plate-like material to avoid the plate-like material being too thick to be conveyed into the defect detection mechanism 4, and then each cleaning roller 322 can be rotated. Under the rotation of each cleaning roller 322, the surface to be inspected of the plate-like material passing through each cleaning roller 322 is cleaned (the cleaning effect of the cleaning roller 322 on the plate-like material will not damage the surface flatness of the plate-like material), so as to fully ensure the cleanliness of the surface to be inspected of the plate-like material and effectively ensure the accuracy of the rear-end detection.

[0032] Example 4: Please refer to Figure 1-Figure 8 , which is different from the above-mentioned embodiments, is that the irradiation detection unit 42 includes a detection light source and a reflected light receiver. The detection light source can output light with uniform light intensity in the direction of the detection conveyor belt 41, and the reflected light receiver can receive light reflected from the plate-like material. The reflected light receiver can judge the flatness of the plate-like material according to the light intensity of the light reflected from the plate-like material. The bottom end of the shielding curtain 43 is provided with a cutout, and after the plate-like material passes through the shielding curtain 43, the shielding curtain 43 can restore the shading state.

[0033] Therefore, the shielding curtain 43 can be used to isolate the irradiation detection unit 42 from the outside, and the detection light source is used to irradiate the detection conveyor belt 41 (the detection conveyor belt 41 is made of a completely light-absorbing material, or the reflection can be eliminated and compensated in advance, which will not affect the detection effect of the irradiation detection unit 42) with uniform light intensity, and the reflected light receiver can receive the light reflected from the plate-like material. The reflected light receiver receives the reflected light intensity reflected by the plate-like material at multiple points, and after taking the average value, it determines the degree of deviation between the reflected light intensity at each point and the average reflected light intensity. When the deviation is greater than 5% (the specific deviation can be adjusted according to actual conditions), the plate-like material is identified as a defective material.

[0034] The directional output mechanism 5 also includes a reversing unit 53, which includes a sliding support 531, a reversing drive cylinder 532 and a reversing conveyor belt 533. The reversing conveyor belt 533 is arranged at the top of the sliding support 531; the plate-like material output from the detection conveyor belt 41 is first input to the top of the reversing conveyor belt 533. Under the drive of the reversing drive cylinder 532, the reversing conveyor belt 533 moves according to the classification of qualified and defective plate-like materials, and is connected to the qualified channel 51 and the defective channel 52 respectively, and the plate-like materials are output according to the classification of qualified and defective.

[0035] Specifically, the rear ends of the qualified channel 51 and the defective channel 52 are both provided with output collecting structures similar to the input lifting mechanism 1, except that the output collecting structures at the rear ends of the qualified channel 51 and the defective channel 52 can drop the thickness of a plate material each time. When in use, driven by the reversing drive cylinder 532, the reversing conveyor belt 533 moves according to the classification of qualified and defective plate materials, and is respectively connected to the qualified channel 51 and the defective channel 52, and the plate materials are output according to the classification of qualified and defective, so as to effectively complete the surface flatness detection of the plate materials.

[0036] Embodiment 5: A detection method for soft light marble, using a surface flatness detection device as described in any one of Embodiments 1 to 4, comprising the following steps: a whole pile of soft light marble is first delivered to an input lifting mechanism 1 by a forklift; the feeding mechanism 2 grabs the soft light marble located on the top layer from the inside of the input lifting mechanism 1 one by one, and places the soft light marble with the surface to be detected facing upward on the top of the conveying and cleaning mechanism 3 according to the orientation of the surface to be detected of the soft light marble; during the process of conveying the soft light marble from the inside of the conveying and cleaning mechanism 3 to one end of the defect detection mechanism 4, the surface to be detected of the soft light marble is cleaned; during the process of conveying inside the defect detection mechanism 4, the surface flatness of the soft light marble passing through is detected; and the soft light marble is output from the directional output mechanism 5 according to the detection of the defect detection mechanism 4, according to the classification of qualified and defective.

[0037] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surface flatness detection device, comprising an input lifting mechanism, a one-by-one feeding mechanism, a conveying and cleaning mechanism, a defect detection mechanism, and a directional output mechanism, characterized in that: The input lifting mechanism can temporarily store a plurality of stacked plate-like materials to be inspected, and the one-by-one feeding mechanism grabs the plate-like materials on the top layer from the input lifting mechanism, and places the plate-like materials on the top of the conveying and cleaning mechanism with the surface to be inspected facing upwards according to the orientation of the surface to be inspected of the plate-like materials; the conveying and cleaning mechanism comprises a lifting and conveying unit and a cleaning unit, and the cleaning unit is fixed directly above the lifting and conveying unit, and one end of the lifting and conveying unit close to the defect detection mechanism can be lifted, and when the lifting and conveying unit conveys the plate-like materials to one end of the defect detection mechanism and passes through the cleaning unit , which can clean the surface of the plate-like material to be inspected; the defect detection mechanism includes a detection conveyor belt, an irradiation detection unit and two shielding curtains, the two shielding curtains are respectively arranged on both sides of the irradiation detection unit, and when the detection conveyor belt conveys the plate-like material to the bottom of the irradiation detection unit, the two shielding curtains can block external light, and the irradiation detection unit performs surface flatness detection on the plate-like material passing through; the directional output mechanism includes a qualified channel and a defective channel, and the plate-like material output from the detection conveyor belt can be classified into the qualified channel and the defective channel according to the detection results of the irradiation detection unit.

2. A surface flatness detection device according to claim 1, characterized in that: The input lifting mechanism includes a lifting plate and a plurality of lifting cylinders, wherein the lifting plate is fixed to the movable ends of each of the lifting cylinders, and each of the lifting cylinders can synchronously extend and retract to drive the lifting plate to move up and down; each of the lifting cylinders can lift the plate-like materials to the same height of thickness each time it drives the lifting plate to rise, and lift the plate-like materials at the top of a stack of multiple plate-like materials placed on the top of the lifting plate to the same position.

3. A surface flatness detection device according to claim 2, characterized in that: The one-by-one feeding mechanism includes a transfer conveying unit, a transverse conveying unit, a flipping unit and a return conveying unit; the transfer conveying unit is arranged at the top of the input lifting mechanism, and the transfer conveying unit drives the topmost plate-like material to be conveyed to the top of the transverse conveying unit; the flipping unit is arranged above the transverse conveying unit, and the return conveying unit is arranged on one side of the transverse conveying unit.

4. A surface flatness detection device according to claim 3, characterized in that: When the surface to be detected of the plate-like material transported by the transverse conveying unit faces upward, the transverse conveying unit continues to transport the plate-like material to one end of the conveying and cleaning mechanism; when the surface to be detected of the plate-like material transported by the transverse conveying unit faces downward, the flipping unit can grab the plate-like material from the transverse conveying unit, and after the flipping unit flips the plate-like material, it places the plate-like material on the return conveying unit with the surface to be detected facing upward, and the return conveying unit can transport the flipped plate-like material back to the transverse conveying unit with the surface to be detected facing upward.

5. A surface flatness detection device according to claim 4, characterized in that: The transfer conveying unit, the lateral conveying unit and the return conveying unit all include conveying belts, and friction is generated between the conveying belts corresponding to the transfer conveying unit, the lateral conveying unit and the return conveying unit and the contacted plate-like materials, thereby driving the plate-like materials to move along the directions corresponding to the transfer conveying unit, the lateral conveying unit and the return conveying unit; the flipping unit includes a flipping shaft and a flipping arm, one end of the flipping arm is fixed to the flipping shaft, and the other end of the flipping arm is provided with a flipping suction cup, and under the rotation of the flipping shaft, the flipping arm can drive the plate-like materials grasped by the flipping suction cup to flip.

6. A surface flatness detection device according to claim 1, characterized in that: The lifting and conveying unit includes a lifting support and a lifting conveyor belt. The end of the lifting conveyor belt away from the defect detection mechanism is rotatably connected to the lifting support, and the end of the lifting conveyor belt close to the defect detection mechanism is rotatably connected through a lifting cylinder. Under the telescopic action of the lifting cylinder, the end of the lifting conveyor belt close to the defect detection mechanism can be lifted.

7. A surface flatness detection device according to claim 6, characterized in that: The cleaning unit includes a connecting bracket and a plurality of cleaning rollers. The bottom end of the connecting bracket is fixed to the lifting conveyor belt, and the distance between the connecting bracket and the lifting conveyor belt remains constant. Each of the cleaning rollers can rotate, and when each of the cleaning rollers rotates, the surface to be inspected of the plate-like material passing through each of the cleaning rollers is cleaned.

8. A surface flatness detection device according to claim 1, characterized in that: The irradiation detection unit includes a detection light source and a reflected light receiver. The detection light source can output light with uniform light intensity in the direction of the detection conveyor belt. The reflected light receiver can receive light reflected from the plate-like material. The reflected light receiver can judge the flatness of the plate-like material according to the light intensity of the light reflected from the plate-like material. The bottom end of the shielding curtain is provided with a cutout, and the shielding curtain can restore the shading state after the plate-like material passes through the shielding curtain.

9. A surface flatness detection device according to claim 1, characterized in that: The directional output mechanism also includes a reversing unit, which includes a sliding support, a reversing drive cylinder and a reversing conveyor belt, and the reversing conveyor belt is arranged at the top of the sliding support; the plate-like material output from the detection conveyor belt is first input to the top of the reversing conveyor belt, and under the drive of the reversing drive cylinder, the reversing conveyor belt moves according to the classification of qualified and defective plate-like materials, and is connected with the qualified channel and the defective channel respectively, and the plate-like materials are output according to the classification of qualified and defective.

10. A method for detecting soft light marble, characterized in that: A surface flatness detection device as described in any one of claims 1 to 9 is used, comprising the following steps: a whole pile of soft light marbles is first delivered to an input lifting mechanism by a forklift; the feeding mechanism grabs the soft light marbles on the top layer from inside the input lifting mechanism one by one, and places the soft light marbles with the surface to be detected facing upward on the top of the conveying and cleaning mechanism according to the orientation of the surface to be detected of the soft light marbles; during the process of the soft light marbles being conveyed from inside the conveying and cleaning mechanism to one end of the defect detection mechanism, the surface to be detected of the soft light marbles is cleaned; during the process of conveying inside the defect detection mechanism, the soft light marbles passing through are tested for surface flatness; and the soft light marbles are output from the directional output mechanism according to the detection of the defect detection mechanism, classified as qualified and defective.

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