Machine vision-based sand flour color degree detection process

Abstract

The invention discloses a sand flour color degree detection process based on machine vision, and belongs to the technical field of sand flour detection.The sand flour color degree detection process based on machine vision comprises the following steps that a plurality of sand flour finished products in the same batch are randomly selected to serve as detection samples; respectively putting the detection samples with corresponding parts into corresponding areas of sand flour color degree detection equipment based on machine vision, and synchronously flattening the detection samples through the sand flour color degree detection equipment based on machine vision; sequentially carrying out visual detection on the flattened detection samples through the sand flour color and luster degree detection equipment based on machine vision, outputting and displaying corresponding detection data, orderly taking out the detection samples after the detection is finished, and replacing the detection samples with the remaining detection samples to be detected, so that the detection accuracy of the sand flour color and luster degree is improved. The method has the advantages of efficient and continuous detection, high detection precision, effective prevention of external environment influence, convenient operation, simplicity, convenience and practicability.

Description

Technical Field

[0001] This invention relates to the field of sand and flour detection technology, specifically to a machine vision-based process for detecting the color of sand and flour. Background Technology

[0002] Sand powder is an industrial material with specially treated high molecular weight polypropylene wax (or polyethylene crystals) as its main component. It appears as a white powder and has an effective ingredient content as high as 99.99%.

[0003] In the production process of sand flour, it is generally necessary to test the color of the finished sand flour. The methods for testing the color of sand flour include traditional manual testing methods, cuvette spectrophotometry, and modern instrumental testing methods.

[0004] Currently, testing is generally conducted using modern instruments. In practice, several sand flour samples are taken and tested one by one using modern instruments. However, in actual testing, after testing the color of one sand flour sample, the instrument needs to be paused, the tested sample removed, and a new sample placed in the testing area before the instrument is restarted. This testing method is quite cumbersome. Moreover, since the number of sand flour samples taken is usually considerable, this method of color testing significantly increases the testing time and reduces efficiency.

[0005] Therefore, there is a need to provide a machine vision-based process for detecting the color of sand-like powder, which aims to solve the above problems. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a machine vision-based process for detecting the color of sand-like powder, so as to solve the problems in the background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A machine vision-based process for detecting the color saturation of sandblasted surfaces includes the following steps: Step 1: Randomly select several portions of finished flour products from the same batch as test samples; Step 2: Place the corresponding number of test samples into the corresponding areas of the machine vision-based sand powder gloss detection device, and perform synchronous flattening processing on the test samples through the machine vision-based sand powder gloss detection device. Step 3: The flattened test samples are visually inspected sequentially using a machine vision-based sand powder color detection device, and the corresponding test data is output and displayed. Step 4: After the test is completed, the test samples are taken out in an orderly manner and replaced with the remaining test samples to be tested. The samples are then flattened using a machine vision-based sand powder color detection device, and the corresponding test data is output and displayed.

[0008] As a further embodiment of the present invention, the machine vision-based sandblasted surface color detection device includes a housing, wherein a plurality of indicator lights are distributed circumferentially on the housing, and a plurality of openings corresponding to the indicator lights are distributed circumferentially on the housing, and further includes: A placement component is provided at the opening, and the interior of the outer shell has a plurality of support grooves that cooperate with the placement component. A drive assembly, wherein the drive assembly is located on the top of the housing; A leveling component, which is located inside the housing and cooperates with several placement components; An intermittent rotation assembly, which is movably disposed on the top inner side of the housing and above the placement assembly; A detection component is disposed at the bottom outer edge of the intermittent rotation component; A transmission assembly, which is mounted on the housing and cooperates with the drive assembly, and is movably cooperated with the leveling assembly and the intermittent rotation assembly respectively; A control and output module is located on the top of the housing and electrically connected to the inside of the device.

[0009] As a further aspect of the present invention, the placement component includes: Side panel, the side panel is opposite to the opening, and a handle is provided on the outer side of the side panel; A placement frame is installed on the side of the side panel near the inside of the outer shell, and side sliding strips that slide in cooperation with the support groove plate are respectively provided on the two side walls of the placement frame. A circular groove is placed on the placement frame and used to place the finished sand and flour product.

[0010] As a further aspect of the present invention, the leveling component includes: A rotating drum is rotatably mounted on the bottom inner side of the outer casing, and a second rotating gear is provided on the outer side of the rotating drum; The second rotating rod is rotatably mounted on the placement frame, and the rotation axis of the second rotating rod is collinear with the center line of the placement groove; A sweeping plate is installed on one end of the second rotating rod located in the placement groove. There is a gap between the bottom of the sweeping plate and the bottom of the placement groove. The outer end of the sweeping plate is in movable contact with the inner wall of the placement groove. The second transmission gear is connected to the other end of the second rotating rod and meshes with the second rotating gear.

[0011] As a further aspect of the present invention, the transmission assembly includes: A top bracket is disposed on the top of the housing, and an electric cylinder is mounted on the top bracket; The first rotating rod is rotatably connected to the bottom of the electric cylinder and passes through the outer shell. The bottom end of the first rotating rod is located inside the rotating cylinder, and several first locking blocks are provided around the bottom of the first rotating rod. The second locking block has several parts arranged circumferentially on the inner wall of the rotating cylinder, and the second locking block is in movable contact with the first locking block; The first rotating gear is mounted on the first rotating rod; The first transmission gear is rotatably disposed inside the housing and meshes with the first rotating gear.

[0012] As a further embodiment of the present invention, the driving component includes: A drive motor is mounted on the top of the housing, and the output shaft of the drive motor is connected to a bevel gear; A guide groove is provided at one end of the first rotating rod located at the top of the outer casing; A bevel gear ring, which is rotatably mounted on the outer shell and slides in cooperation with a guide groove, and meshes with a bevel gear.

[0013] As a further aspect of the present invention, the intermittent rotation component includes: A support ring frame, which is fixedly disposed inside the outer shell; A turntable is rotatably mounted on a support ring frame. The center of the turntable has a through hole that movably engages with a guide groove. Several guide groove frames are distributed circumferentially on the turntable. A fixed arc plate is provided on the outer edge of the top of the turntable between two adjacent guide groove frames. A horizontal plate, which is mounted on the inner wall of the outer casing; A rotating plate is rotatably mounted on a horizontal plate and movably engages with a fixed arc plate. The outer end of the rotating plate is provided with a sliding column that movably engages with a guide slide frame. The rotating plate is connected to a first transmission gear. A support ring, wherein the support ring is disposed on the guide groove and located above the first rotating gear; A limiting rack is movably disposed inside the housing and meshes with the first transmission gear. One end of the limiting rack is provided with an annular groove that rotatably engages with the support ring. The guide post is located on the top inner side of the housing and slides in engagement with the limiting rack.

[0014] As a further aspect of the present invention, the detection component includes: Mounting plate, which is installed on the outer edge of the bottom of the turntable and corresponds to the placement groove; LED light source components, wherein a plurality of LED light source components are provided and are circumferentially distributed on one side of the mounting plate near the placement groove; An industrial camera is positioned on the mounting plate at the center of the side near the placement groove.

[0015] As a further embodiment of the present invention, the number of fixed arc plates is consistent with the number of placement frames and corresponds one-to-one.

[0016] As a further embodiment of the present invention, the end of the rotating plate away from the sliding column is provided as an outwardly convex arc plate end, and the side of the fixed arc plate near the center of the turntable is provided with an arc-shaped groove that slides and engages with the arc plate end of the rotating plate.

[0017] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art: 1. In this invention, by rationally designing the quantity and sampling method of the extracted sand flour finished products, the representativeness of the sample to the whole can be ensured, and the overall color of the sand flour can be inferred with high probability whether it meets the standard. By placing the extracted sand flour finished products in a sand flour color detection device based on machine vision, the influence of the external environment on the detection results can be effectively reduced, and the accuracy of the detection results can be improved. At the same time, several sand flour finished products in the same batch can be visually inspected in an orderly manner, and continuous and efficient detection of several sand flour finished products to be tested can be achieved. This solves the problem of time cost consumed by changing the sand flour finished products to be tested during the detection process and improves the detection efficiency. 2. In this invention, when the drive component drives the rotating drum to rotate in cooperation with the transmission component, the sweeping plate flattens the sand and flour product placed in the placement groove by rotating around the second rotating rod, which facilitates the subsequent color detection of the sand and flour product. At the same time, maintaining the real-time flattening of the sand and flour product during the color detection process can adjust the posture of the sand and flour particles, thereby improving the detection accuracy of the sand and flour color. 3. In this invention, after the color of the finished sand flour product at the corresponding position is detected, the electric cylinder retracts upward and drives the first rotating rod to move upward synchronously. The first rotating rod drives the first rotating gear, the support ring, and the first locking block to move upward synchronously, releasing the engagement between the first locking block and the second locking block. The first rotating gear meshes with the first transmission gear. The support ring drives the limiting rack to move upward, releasing the meshing between the limiting rack and the first transmission gear. At the same time, the drive motor drives the bevel gear to rotate. The first rotating gear, through meshing with the first transmission gear, drives the first transmission gear to rotate one revolution, so that the detection component rotates to be directly above the next finished sand flour product to be detected. This facilitates continuous color detection of the finished sand flour product and avoids the inefficiency of having to pause detection after one detection and wait for the finished sand flour product to be replaced, thus improving the detection efficiency of the finished sand flour product.

[0018] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a flowchart of the machine vision-based process for detecting the color of sand-like powder in an embodiment of the invention.

[0020] Figure 2 This is a perspective view of a machine vision-based sandblasted powder color detection device in an embodiment of the invention.

[0021] Figure 3 This is a front cross-sectional view of the machine vision-based sandblasted powder color detection device in an embodiment of the invention.

[0022] Figure 4 This is an internal top view of the machine vision-based sandblasted powder color detection device in an embodiment of the invention.

[0023] Figure 5 This is an internal bottom view of the machine vision-based sandblasted powder color detection device in an embodiment of the invention.

[0024] Figure 6 This is a schematic diagram of the structure for placing components in an embodiment of the invention.

[0025] Figure 7 This is a schematic diagram of the detection component in an embodiment of the invention.

[0026] Figure 8 for Figure 7 A magnified view of a portion of point A in the middle.

[0027] Figure 9 This is a schematic diagram of the intermittent rotation component and the transmission component in the embodiment of the invention.

[0028] Figure 10This is an exploded view of the intermittent rotating component in an embodiment of the invention.

[0029] Reference numerals: 1. Outer shell; 101. Base column; 102. Observation window; 103. Signal light; 104. Support groove plate; 2. Placement components; 201. Side panel; 202. Handle; 203. Placement frame; 2031. Side slide bar; 204. Placement groove; 3. Drive assembly; 301. Drive motor; 302. Bevel gear; 303. Bevel gear ring; 304. Guide groove; 4. Transmission assembly; 401. Top bracket; 402. Electric cylinder; 403. First rotating rod; 404. First locking block; 405. Second locking block; 406. First rotating gear; 407. First transmission gear; 5. Leveling assembly; 501. Rotary drum; 502. Second rotating gear; 503. Second rotating rod; 504. Sweeping plate; 505. Second transmission gear; 6. Intermittent rotating assembly; 601. Turntable; 6011. Through hole; 602. Support ring frame; 603. Guide slide frame; 604. Fixed arc plate; 605. Rotating plate; 606. Sliding column; 607. Limiting rack; 6071. Ring groove; 608. Guide column; 609. Support ring; 610. Horizontal plate; 7. Detection components; 701. Mounting plate; 702. LED light source components; 703. Industrial camera; 8. Control and output module. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0031] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0032] In one embodiment of the present invention, see Figure 1 A machine vision-based process for detecting the color of sandblasted powder includes the following steps: Step 1: Randomly select several portions of finished flour products from the same batch as test samples; Step 2: Place the corresponding number of test samples into the corresponding areas of the machine vision-based sand powder gloss detection device, and perform synchronous flattening processing on the test samples through the machine vision-based sand powder gloss detection device. Step 3: The flattened test samples are visually inspected sequentially using a machine vision-based sand powder color detection device, and the corresponding test data is output and displayed. Step 4: After the test is completed, the test samples are taken out in an orderly manner and replaced with the remaining test samples to be tested. The samples are then flattened using a machine vision-based sand powder color detection device, and the corresponding test data is output and displayed.

[0033] In this embodiment, by rationally designing the quantity and sampling method of the extracted sand flour products, the representativeness of the sample to the whole can be ensured, and the overall color of the sand flour can be inferred with high probability whether it meets the standard. By placing the extracted sand flour products in a machine vision-based sand flour color detection device, the influence of the external environment on the detection results can be effectively reduced, and the accuracy of the detection results can be improved. At the same time, several sand flour products from the same batch can be subjected to orderly visual inspection, enabling continuous and efficient detection of several sand flour products to be inspected. This solves the problem of time cost consumed by changing the sand flour products to be inspected during the inspection process, and improves the detection efficiency.

[0034] In one embodiment of the present invention, see Figure 2 , Figure 3 and Figure 7 The machine vision-based sandblasted powder color detection device includes a housing 1. A plurality of signal lights 103 are circumferentially distributed on the housing 1. A plurality of openings corresponding to the signal lights 103 are also circumferentially distributed on the housing 1. Placement components 2 are provided at the openings. A plurality of support grooves 104 cooperating with the placement components 2 are circumferentially distributed inside the housing 1. A drive component 3 is provided at the top of the housing 1. A leveling component 5 cooperating with the placement components 2 is provided inside the housing 1. An intermittent rotation component 6, movably positioned above the placement components 2, is movably disposed on the top inner side of the housing 1. A detection component 7 is provided at the bottom outer edge of the intermittent rotation component 6. A transmission component 4 cooperating with the drive component 3 is provided on the housing 1. The transmission component 4 movably cooperates with both the leveling component 5 and the intermittent rotation component 6. A control and output module 8 electrically connected to the internal components of the device is provided at the top of the housing 1.

[0035] In this embodiment, several randomly selected finished sand and flour products to be tested can be placed sequentially through several placement components 2. The driving component 3 can drive the leveling component 5 or the intermittent rotation component 6 to work in cooperation with the transmission component 4. The leveling component 5 and the intermittent rotation component 6 do not work at the same time. Specifically, when the leveling component 5 is in working condition, it can level several sand and flour finished products to be tested placed on the placement component 2. At this time, the signal light 103 corresponding to the placement component 2 on which the untested sand and flour finished products are placed will show a green light. When the intermittent rotation component 6 is in working condition, the intermittent rotation component 6 drives the detection component 7 to rotate a certain angle and then stops working, so that the detection component 7 rotates to directly above the corresponding placement component 2. At this time, the indicator light 103 corresponding to the placement component 2 is displayed as a yellow light. Then, the transmission component 4 re-cooperates with the leveling component 5, so that the leveling component 5 performs leveling treatment on the sand and flour finished product to be tested. The detection component 7 performs color measurement on the sand and flour finished product to be tested located on the placement component 2, obtains the detection data, and transmits the detection data to the control and output module 8. The control and output module 8 processes and displays the detection data. Furthermore, after the colorimetric test of the finished sand flour product on the placement component 2 is completed, the signal light 103 corresponding to the placement component 2 will turn red, which will promptly remind the staff to remove the placement component 2 and take out the finished sand flour product inside the placement component 2, and replace it with another finished sand flour product to be tested. After the replacement is completed, the placement component 2 will be pushed back into the outer shell 1. At the same time, the transmission component 4 will drive the detection component 7 to continue to rotate a certain angle in cooperation with the intermittent rotation component 6, so that the detection component 7 rotates to be directly above the next placement component 2, which will facilitate the colorimetric test of the finished sand flour product to be tested on the next placement component 2. This can realize the continuous colorimetric test of several finished sand flour products to be tested, thus improving the testing efficiency. When the detection component 7 is performing the detection, the leveling component 5 is working, and the intermittent rotation component 6 is not working. This allows the finished sand flour product to be moved synchronously during the color detection process, thereby improving the accuracy of the color detection.

[0036] The outer casing 1 has several symmetrically arranged bottom pillars 101, and several observation windows 102 corresponding to the placement components 2 are distributed circumferentially on the side wall of the outer casing 1. Through the observation windows 102, the flatness and color detection process of the sand and flour in the corresponding placement components 2 can be observed. The control and output module 8 includes a controller, a data processor and a display, which facilitates the control of the start and stop of the electrical equipment in the device, and at the same time processes and displays the detected data. There are at least three placement components 2. Several numerical labels are distributed circumferentially on the outer wall of the outer casing 1. The numerical labels correspond one-to-one with the placement components 2. Through the correspondence between the placement components 2 and the numerical labels, the staff can more clearly understand the color detection data of the corresponding sand and flour.

[0037] In one embodiment of the present invention, see Figures 2-6The placement component 2 includes a side plate 201 corresponding to the opening. A handle 202 is provided on the outer side of the side plate 201. A placement frame 203 is installed on the side of the side plate 201 near the inside of the outer shell 1. Side sliding strips 2031 that slide in cooperation with the support groove plate 104 are respectively provided on the two side walls of the placement frame 203. A placement circular groove 204 for placing sand and flour finished products is provided on the placement frame 203.

[0038] The leveling assembly 5 includes a rotating cylinder 501 rotatably disposed on the bottom inner side of the outer casing 1. A second rotating gear 502 is provided on the outer side of the rotating cylinder 501. A second rotating rod 503 is rotatably disposed on the placement frame 203. The rotation axis of the second rotating rod 503 is collinear with the center line of the placement groove 204. A sweeping plate 504 is installed at one end of the second rotating rod 503 located in the placement groove 204. There is a gap between the bottom of the sweeping plate 504 and the bottom of the placement groove 204. The outer end of the sweeping plate 504 is in movable contact with the inner wall of the placement groove 204. The other end of the second rotating rod 503 is connected to a second transmission gear 505 that meshes with the second rotating gear 502.

[0039] In this embodiment, in the initial state, the side plate 201 and the placement frame 203 are pulled out by the handle 202. The placement frame 203 drives the second transmission gear 505 to move outward synchronously by rotating with the second rotating rod 503, thereby disengaging the second transmission gear 505 from the second rotating gear 502. The sand and flour product to be tested is placed in the placement groove 204. Then, the handle 202 is pushed into the outer shell 1, so that the corresponding second transmission gear 505 re-engages with the second rotating gear 502. When the drive assembly 3 drives the rotating drum 501 to rotate in cooperation with the transmission assembly 4, the rotating drum 501 drives the second rotating gear 502 to rotate synchronously. The second rotating gear 502 drives the sweeping plate 504 to rotate around the corresponding second rotating rod 503 by meshing with several second transmission gears 505 and by connecting the second transmission gears 505 to the second rotating rod 503. The sweeping plate 504 flattens the sand and flour finished product placed in the placement groove 204 by rotating around the second rotating rod 503, which facilitates the subsequent color detection of the sand and flour finished product. At the same time, by maintaining the real-time flattening of the sand and flour finished product during the color detection process, the posture of the sand and flour particles can be adjusted, thereby improving the detection accuracy of the sand and flour color.

[0040] The side walls of two adjacent placement frames 203 are movably fitted together, which improves the space utilization inside the outer shell 1. At the same time, it facilitates the mutual support of the two adjacent placement frames 203. At least one sweeping plate 504 is provided.

[0041] In one embodiment of the present invention, see Figures 2-10The transmission assembly 4 includes a top bracket 401 disposed on the top of the outer casing 1. An electric cylinder 402 is mounted on the top bracket 401. The bottom of the electric cylinder 402 is rotatably connected to a first rotating rod 403 that penetrates the outer casing 1. The bottom end of the first rotating rod 403 is located inside the rotating cylinder 501. A plurality of first locking blocks 404 are circumferentially arranged at the bottom of the first rotating rod 403. A plurality of second locking blocks 405 that movably abut against the first locking blocks 404 are circumferentially arranged on the inner wall of the rotating cylinder 501. A first rotating gear 406 is disposed on the first rotating rod 403. A first transmission gear 407 that meshes with the first rotating gear 406 is rotatably disposed inside the outer casing 1.

[0042] The drive assembly 3 includes a drive motor 301 mounted on the top of the housing 1. The output shaft of the drive motor 301 is connected to a bevel gear 302. The first rotating rod 403 has a guide groove 304 at one end located on the top of the housing 1. A bevel ring 303 is rotatably mounted on the housing 1 and slides in cooperation with the guide groove 304. The bevel ring 303 meshes with the bevel gear 302.

[0043] The intermittent rotation assembly 6 includes a support ring frame 602 fixedly disposed inside the outer shell 1. A turntable 601 is rotatably mounted on the support ring frame 602. The turntable 601 has a through hole 6011 at its center that movably engages with a guide groove 304. Several guide groove frames 603 are circumferentially distributed on the turntable 601. A fixed arc plate 604 is provided on the outer edge of the top of the turntable 601 between two adjacent guide groove frames 603. A horizontal plate 610 is installed on the inner wall of the outer shell 1. A rotating plate that movably engages with the fixed arc plate 604 is rotatably mounted on the horizontal plate 610. 605, the outer end of the rotating plate 605 is provided with a sliding post 606 that is movably engaged with the guide slide frame 603. The rotating plate 605 is connected to the first transmission gear 407. The guide slide 304 is provided with a support ring 609 located above the first rotating gear 406. The inner shell 1 is provided with a limiting rack 607 that is movably engaged with the first transmission gear 407. One end of the limiting rack 607 is provided with an annular groove 6071 that is rotatably engaged with the support ring 609. The top inner side of the outer shell 1 is provided with a guide post 608 that is slidably engaged with the limiting rack 607.

[0044] In this embodiment, when it is necessary to level the sand and flour finished product placed in the circular groove 204, the electric cylinder 402 extends downward and drives the first rotating rod 403 to move downward synchronously. The first rotating rod 403 drives the first rotating gear 406, the support ring 609 and the first locking block 404 to move downward synchronously, so that the first locking block 404 engages with the second locking block 405. The first rotating gear 406 does not mesh with the first transmission gear 407. The support ring 609 drives the limiting rack 607 to move downward, so that the limiting rack 607 meshes with the first transmission gear 407, which can fix the angle of the first transmission gear 407, thereby fixing the position of the rotating plate 605. The rotating plate 605 fixes the position of the turntable 601 by slidingly engaging with the fixed arc plate 604. Simultaneously, the drive motor 301 drives the bevel gear 302 to rotate. The bevel gear 302 drives the first rotating rod 403 to rotate synchronously by meshing with the bevel gear ring 303 and by slidingly engaging with the guide groove 304. The first rotating rod 403 drives the rotating cylinder 501 to rotate by engaging with the first locking block 404 and the second locking block 405 and by rotating with the outer shell 1. The rotating cylinder 501 drives the second rotating gear 502 to rotate. The second rotating gear 502 drives the sweeping plate 504 to rotate around the corresponding second rotating rod 503 by meshing with several second transmission gears 505 and by connecting the second transmission gears 505 to the second rotating rod 503. The sweeping plate 504 flattens the sand and flour finished product placed in the placement groove 204 by rotating around the second rotating rod 503, which facilitates the subsequent color detection of the sand and flour finished product. When it is necessary to test the color of the corresponding sand flour finished product, the electric cylinder 402 retracts upward and drives the first rotating rod 403 to move upward synchronously. The first rotating rod 403 drives the first rotating gear 406, the support ring 609 and the first locking block 404 to move upward synchronously, releasing the locking between the first locking block 404 and the second locking block 405. The first rotating gear 406 meshes with the first transmission gear 407. The support ring 609 drives the limiting rack 607 to move upward, releasing the meshing between the limiting rack 607 and the first transmission gear 407, which facilitates the adjustment of the angle of the first transmission gear 407. Simultaneously, the drive motor 301 drives the bevel gear 302 to rotate. The bevel gear 302 drives the first rotating rod 403 to rotate synchronously by meshing with the bevel gear ring 303 and by slidingly engaging with the guide groove 304. The first rotating rod 403 drives the first rotating gear 406 to rotate synchronously. The first rotating gear 406 drives the first transmission gear 407 to rotate one revolution by meshing with the first transmission gear 407. The first transmission gear 407 drives the rotating plate 605 to rotate synchronously by meshing with the rotating plate 605. The rotating plate 605 drives the sliding column 606 to rotate synchronously. The sliding column 606 drives the rotating plate 601 to rotate by a corresponding angle by slidingly engaging with the guide groove frame 603 and by rotating with the support ring frame 602. The rotating plate 601 drives the detection component 7 installed at its bottom to rotate synchronously, so that the detection component 7 rotates to be directly above the finished sand and flour product to be detected. When the detection component 7 starts detection, the electric cylinder 402 extends downward and drives the first rotating rod 403 to move downward synchronously, so that the sweeping plate 504 continues to flatten the sand flour product placed in the placement groove 204 by rotating around the second rotating rod 503. This facilitates the adjustment of the sand flour's posture during the detection process and improves the accuracy of the color detection of the sand flour product.

[0045] After the color of the finished sand flour product at the corresponding position is detected, the electric cylinder 402 retracts upward and drives the first rotating rod 403 to move upward synchronously. The first rotating rod 403 drives the first rotating gear 406, the support ring 609, and the first locking block 404 to move upward synchronously, releasing the engagement between the first locking block 404 and the second locking block 405. The first rotating gear 406 meshes with the first transmission gear 407. The support ring 609 drives the limiting rack 607 to move upward, releasing the engagement between the limiting rack 607 and the first transmission gear 407. At the same time, the drive motor 301 drives the bevel gear 302 to rotate. The first rotating gear 406 drives the first transmission gear 407 to rotate one revolution by meshing with the first transmission gear 407, so that the detection component 7 rotates to be directly above the next finished sand flour product to be detected. This facilitates continuous color detection of the finished sand flour product and avoids the inefficiency of having to pause detection and wait for the finished sand flour product to be replaced after each detection, thus improving the detection efficiency of the finished sand flour product.

[0046] The rotating plate 605 has an outwardly convex arc end at the end away from the sliding column 606. The fixed arc plate 604 has an arc-shaped groove on the side near the center of the turntable 601 that slides with the arc end of the rotating plate 605. Through the sliding cooperation between the arc end and the arc groove, the turntable 601 can be rotated and stopped. The number of fixed arc plates 604 is consistent with the number of placement frames 203 and corresponds one-to-one, which can improve the correspondence between the detection component 7 and the finished sand and flour product to be detected.

[0047] In one embodiment of the present invention, see Figure 2 , Figure 7 and Figure 8 The detection component 7 includes a mounting plate 701 installed on the outer edge of the bottom of the turntable 601. The mounting plate 701 corresponds to the placement groove 204. Several LED light source elements 702 are distributed circumferentially on the side of the mounting plate 701 near the placement groove 204. An industrial camera 703 is provided at the center of the side of the mounting plate 701 near the placement groove 204.

[0048] In this embodiment, a number of circumferentially distributed LED light sources 702 can provide a good lighting environment for the color detection of sand and flour products, avoiding shadows. Through the operation of the leveling component 5, the sand and flour products to be detected can be effectively leveled, which can meet the color detection of sand and flour products with different postures, improve the detection accuracy, and avoid the problem of increased detection costs caused by using multiple industrial cameras 703 in the past.

[0049] The industrial camera 703 is configured as a high-resolution industrial camera, such as a 5-megapixel industrial camera, and the LED light source 702 is configured as an LED lamp. By setting up the industrial camera 703 and the LED light source 702, non-contact detection can be achieved, avoiding contamination of the finished sand flour product. At the same time, different dimensional features of the finished sand flour product can be detected, such as the color, texture, and defects of the sand flour. By performing colorimetric detection on the finished sand flour product inside the housing 1, the influence of external light sources can be avoided, the light stability of the detection environment can be improved, and the accuracy of colorimetric detection can be guaranteed.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A machine vision-based process for detecting the color intensity of sandblasted powder, characterized in that, Includes the following steps: Step 1: Randomly select several portions of finished flour products from the same batch as test samples; Step 2: Place the corresponding number of test samples into the corresponding areas of the machine vision-based sand powder gloss detection device, and perform synchronous flattening processing on the test samples through the machine vision-based sand powder gloss detection device. Step 3: The flattened test samples are visually inspected sequentially using a machine vision-based sand powder color detection device, and the corresponding test data is output and displayed. Step 4: After the test is completed, the test samples are taken out in an orderly manner and replaced with the remaining test samples to be tested. The samples are then flattened using a machine vision-based sand powder color detection device, and the corresponding test data is output and displayed.

2. The machine vision-based sandblasted surface color detection process according to claim 1, characterized in that, The machine vision-based sandblasted powder gloss detection device includes a housing, on which a plurality of indicator lights are distributed circumferentially, and on which a plurality of openings corresponding to the indicator lights are distributed circumferentially, and further includes: A placement component is provided at the opening, and the interior of the outer shell has a plurality of support grooves that cooperate with the placement component. A drive assembly, wherein the drive assembly is located on the top of the housing; A leveling component, which is located inside the housing and cooperates with several placement components; An intermittent rotation assembly, which is movably disposed on the top inner side of the housing and above the placement assembly; A detection component is disposed at the bottom outer edge of the intermittent rotation component; A transmission assembly, which is mounted on the housing and cooperates with the drive assembly, and is movably cooperated with the leveling assembly and the intermittent rotation assembly respectively; A control and output module is located on the top of the housing and electrically connected to the inside of the device.

3. The machine vision-based sandblasted surface color detection process according to claim 2, characterized in that, The placement component includes: Side panel, the side panel is opposite to the opening, and a handle is provided on the outer side of the side panel; A placement frame is installed on the side of the side panel near the inside of the outer shell, and side sliding strips that slide in cooperation with the support groove plate are respectively provided on the two side walls of the placement frame. A circular groove is placed on the placement frame and used to place the finished sand and flour product.

4. The machine vision-based sandblasted surface color detection process according to claim 3, characterized in that, The leveling component includes: A rotating drum is rotatably mounted on the bottom inner side of the outer casing, and a second rotating gear is provided on the outer side of the rotating drum; The second rotating rod is rotatably mounted on the placement frame, and the rotation axis of the second rotating rod is collinear with the center line of the placement groove; A sweeping plate is installed on one end of the second rotating rod located in the placement groove. There is a gap between the bottom of the sweeping plate and the bottom of the placement groove. The outer end of the sweeping plate is in movable contact with the inner wall of the placement groove. The second transmission gear is connected to the other end of the second rotating rod and meshes with the second rotating gear.

5. The machine vision-based sandblasted surface color detection process according to claim 4, characterized in that, The transmission assembly includes: A top bracket is disposed on the top of the housing, and an electric cylinder is mounted on the top bracket; The first rotating rod is rotatably connected to the bottom of the electric cylinder and passes through the outer shell. The bottom end of the first rotating rod is located inside the rotating cylinder, and several first locking blocks are provided around the bottom of the first rotating rod. The second locking block has several parts arranged circumferentially on the inner wall of the rotating cylinder, and the second locking block is in movable contact with the first locking block; The first rotating gear is mounted on the first rotating rod; The first transmission gear is rotatably disposed inside the housing and meshes with the first rotating gear.

6. The machine vision-based sandblasted surface color detection process according to claim 5, characterized in that, The driving component includes: A drive motor is mounted on the top of the housing, and the output shaft of the drive motor is connected to a bevel gear; A guide groove is provided at one end of the first rotating rod located at the top of the outer casing; A bevel gear ring is rotatably mounted on the outer shell and slides in cooperation with a guide groove. The bevel gear ring meshes with a bevel gear.

7. The machine vision-based sandblasted surface color detection process according to claim 5, characterized in that, The intermittent rotation component includes: A support ring frame, which is fixedly disposed inside the outer shell; A turntable is rotatably mounted on a support ring frame. The center of the turntable has a through hole that movably engages with a guide groove. Several guide groove frames are distributed circumferentially on the turntable. A fixed arc plate is provided on the outer edge of the top of the turntable between two adjacent guide groove frames. A horizontal plate, which is mounted on the inner wall of the outer casing; A rotating plate is rotatably mounted on a horizontal plate and movably cooperates with a fixed arc plate. The outer end of the rotating plate is provided with a sliding column that movably cooperates with a guide slide frame. The rotating plate is connected to a first transmission gear. A support ring, wherein the support ring is disposed on the guide groove and located above the first rotating gear; A limiting rack is movably disposed inside the housing and meshes with the first transmission gear. One end of the limiting rack is provided with an annular groove that rotatably engages with the support ring. The guide post is located on the top inner side of the housing and slides in engagement with the limiting rack.

8. The machine vision-based sandblasted surface color detection process according to claim 3, characterized in that, The detection component includes: Mounting plate, which is installed on the outer edge of the bottom of the turntable and corresponds to the placement groove; LED light source components, wherein a plurality of LED light source components are provided and are circumferentially distributed on one side of the mounting plate near the placement groove; An industrial camera is positioned on the mounting plate at the center of the side near the placement groove.

9. The machine vision-based sandblasted surface color detection process according to claim 7, characterized in that, The number of fixed arc plates is consistent with the number of placement frames and corresponds one-to-one.

10. The machine vision-based sandblasted surface color detection process according to claim 7, characterized in that, The end of the rotating plate away from the sliding column is set as an outwardly convex arc plate end, and the side of the fixed arc plate near the center of the turntable is provided with an arc-shaped groove that slides and engages with the arc plate end of the rotating plate.

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