Screening equipment based on computer visual identification

Abstract

The invention discloses screening equipment based on computer visual identification, and relates to the technical field of visual detection screening, and the technical scheme is that the screening equipment comprises a conveyor belt, packages are conveyed on the conveyor belt, an identification shell is fixedly connected to the upper part of the conveyor belt, adjusting mechanisms are symmetrically arranged in the identification shell, and identification cameras are fixedly connected to the upper parts of the adjusting mechanisms; according to the invention, the parcels are transported above the conveyor belt and enter the identification shell, then the parcels are firstly detected by the identification camera arranged on the adjusting mechanism, and the upper parts and the two sides of the parcels can be identified through the identification camera, so that whether the parcels are damaged or not is checked; and the recognition angle of the recognition camera can be adjusted through the adjusting mechanism, so that the recognition effect of the recognition camera is improved, the package is driven to rotate through the turnover mechanism, the bottom of the package is turned out, and the situation that products with the damaged bottoms of the packages are mixed with qualified products is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of visual detection and screening, and in particular to a screening device based on computer visual recognition. Background Art

[0002] Screening equipment based on computer vision recognition was born against the backdrop of the rapid development of machine vision technology and image processing technology. This type of equipment uses advanced computer vision algorithms to extract useful information from a large number of digital images and realize automated screening and detection. It has shown great application value in many fields, such as fruit and vegetable cleaning and grading in the food industry, circuit board component welding quality inspection in the electronics industry, and clothing defect inspection in the apparel manufacturing industry. With the gradual integration of new technologies such as deep learning, the performance and adaptability of screening equipment have been continuously improved, and it can handle more complex data and tasks. The government's policy support and large-scale investment from enterprises have provided a good environment for the development of screening equipment based on computer vision recognition, promoting its widespread application and sustainable development.

[0003] After searching, the invention patent of Chinese patent number CN117600103A discloses a screening device based on computer vision recognition, including an outer cover, a computer control system, a side plate, a driving roller, a transmission chain, a cross plate, a placement device, an electric push rod, a rotation detection device and a collection tank, wherein the computer control system is arranged on the outer wall of the outer cover, the side plate is arranged on the inner side of the outer cover, the driving roller is arranged at the end of the side plate, the transmission chain is transmitted to the driving roller, the cross plate is arranged on the transmission chain, the placement device is arranged on the cross plate, the electric push rod is arranged at the inner top of the outer cover, the rotation detection device is arranged at the output end of the electric push rod, and the collection tank is arranged at the inner bottom of the outer cover and below the transmission chain. The present invention belongs to the field of visual inspection and screening technology, and specifically refers to a screening device based on computer vision recognition that can perform comprehensive rotation visual inspection on products, and timely remove unqualified products, and can perform cyclic inspection. Compared with the prior art, the invention patent with Chinese patent number CN117600103A solves the problem that the equipment in the prior art is not convenient for comprehensive identification of products and is not convenient for timely screening and elimination of unqualified products.

[0004] However, in actual use of the above device, when the package is transported on the conveyor belt, the recognition camera installed above can identify the top and both sides of the package to check whether the package is damaged. However, the bottom of the package is in contact with the conveyor belt and the recognition camera cannot identify it. This causes some unqualified packages with damaged bottoms to be mixed with qualified products, affecting product quality. Therefore, a screening device based on computer vision recognition is proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that when a package is transported on a conveyor belt, an identification camera arranged above can identify the top and both sides of the package to check whether the package is damaged, but the bottom of the package is in contact with the conveyor belt and the identification camera cannot identify it, which results in unqualified packages with damaged bottoms being mixed with qualified products, affecting product quality. A screening device based on computer vision recognition is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A screening device based on computer vision recognition, comprising a conveyor belt, on which a package is transported, an identification shell is fixedly connected to the upper part of the conveyor belt, an adjustment mechanism is symmetrically arranged inside the identification shell, an identification camera is fixedly connected to the upper part of the adjustment mechanism, the adjustment mechanism drives the identification camera to rotate to adjust the identification angle, and clamping mechanisms are symmetrically arranged on both sides of the identification shell;

[0008] A flipping mechanism is fixedly connected to one side of the clamping mechanism, and the clamping mechanism can drive the flipping mechanism to move and contact the package. The flipping mechanism can drive the clamping plate arranged inside to rotate and flip the package. A screening mechanism is arranged at the front end of the conveyor belt, and the screening mechanism can drive the screening plate to rotate and screen the package.

[0009] The above technical solution further includes:

[0010] The regulating mechanism comprises a transmission groove fixedly connected inside the identification shell, a third motor is arranged on the upper part of the transmission groove, and an regulating component is arranged at the output end of the third motor.

[0011] The adjustment component includes a screw rod arranged at the output end of the third motor, the screw rod is rotatably connected to the transmission groove, the screw rod is threadedly connected to a transmission member, the transmission member and the transmission groove are slidably connected, a transmission rod is fixedly connected to the upper part of the transmission member, the transmission rod is slidably connected to the identification shell, the upper part of the transmission rod is rotatably connected to a first connecting member, the upper part of the first connecting member is rotatably connected to a connecting plate, the connecting plate is rotatably connected to the identification shell, and the upper part of the connecting plate is fixedly connected to an identification camera.

[0012] The clamping mechanism comprises a clamping shell fixedly connected to the identification shell, a fourth motor is arranged inside the clamping shell, and a clamping assembly is arranged at the output end of the fourth motor.

[0013] The clamping assembly includes a first transmission wheel arranged at the output end of the fourth motor, the first transmission wheel is transmission-connected with a transmission belt, the transmission belt is transmission-connected with a second transmission wheel on a side away from the first transmission wheel, the second transmission wheel is fixedly connected with an eccentric shaft at the lower part, the eccentric shaft is rotatably connected with a second connecting member at the lower part, the second connecting member is fixedly connected with a connecting rod on a side away from the eccentric shaft, and the connecting rod is fixedly connected with a flip shell.

[0014] The flipping mechanism includes a flipping shell fixedly connected to a connecting rod, a second motor is arranged inside the flipping shell, a worm is arranged at an output end of the second motor, the worm is meshingly connected to a worm wheel, the worm wheel is rotationally connected to the flipping shell, a clamping plate is fixedly connected to a side of the worm wheel away from the flipping shell, and a rubber anti-slip surface is arranged at the front end of the clamping plate.

[0015] An identification camera is arranged inside the identification shell at a position above the two flip shells, and the identification camera can detect the upper part of the package.

[0016] The screening mechanism comprises a screening shell fixedly connected to the upper part of the conveyor belt, a first motor is arranged inside the screening shell, and a screening assembly is arranged at the output end of the first motor.

[0017] The screening assembly includes a first gear disposed at an output end of a first motor, the first gear is meshedly connected with a second gear, the second gear is rotationally connected to a screening housing, and a screening plate is fixedly connected to a side of the second gear away from the screening housing.

[0018] A screening trough is fixedly connected to the front end of the conveyor belt, and a partition is fixedly connected to the upper part of the screening trough, and the screening trough can be divided into two parts by the partition.

[0019] The present invention has the following beneficial effects:

[0020] 1. In the present invention, the package is transported above the conveyor belt, and after entering the identification shell, it is first detected by the identification camera arranged on the adjustment mechanism. The identification camera can identify the upper part and both sides of the package to check whether the package is damaged, and the identification angle of the identification camera can be adjusted by the adjustment mechanism to improve the identification effect of the identification camera. Then the package continues to be transported, and the clamping mechanism is started after moving a certain distance. The clamping mechanism can drive the flipping mechanism to move to clamp the package, and then the flipping mechanism drives the package to rotate, so that the bottom of the package is turned out. At this time, the identification camera located above the flip shell can identify the bottom of the package, effectively avoiding the mixing of products with damaged bottom of the package with qualified products, thereby improving the screening effect of the equipment.

[0021] 2. In the present invention, after the package is identified, it continues to move forward driven by the conveyor belt, and the screening mechanism can control the rotation direction of the screening plate according to the results recognized by the identification camera. The different rotation directions of the screening plate can guide the package to different positions on different screening slots, thereby distinguishing qualified products from defective products and realizing rapid screening of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a screening device based on computer vision recognition proposed by the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the screening mechanism in the present invention;

[0024] Figure 3 It is a schematic diagram of the internal structure of the screening shell in the present invention;

[0025] Figure 4 It is a schematic diagram of the overall structure of the identification shell in the present invention;

[0026] Figure 5 It is a schematic diagram of the internal structure of the identification mechanism in the present invention;

[0027] Figure 6 It is a schematic diagram of the internal structure of the flip shell in the present invention;

[0028] Figure 7 It is a schematic diagram of the overall structure of the adjustment mechanism in the present invention;

[0029] Figure 8 It is a schematic diagram of the internal structure of the clamping lens in the present invention.

[0030] In the figure: 1. conveyor belt; 2. identification shell; 3. screening shell; 4. screening plate; 5. partition; 6. screening slot; 7. first motor; 8. first gear; 9. second gear; 10. identification camera; 11. package; 12. flip shell; 13. clamping shell; 14. second motor; 15. worm; 16. worm wheel; 17. clamping plate; 18. third motor; 19. transmission slot; 20. screw; 21. transmission member; 22. transmission rod; 23. first connecting member; 24. connecting plate; 25. fourth motor; 26. first transmission wheel; 27. second transmission wheel; 28. transmission belt; 29. ​​eccentric shaft; 30. second connecting member; 31. connecting rod. DETAILED DESCRIPTION

[0031] 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.

[0032] Embodiment 1

[0033] like Figure 1-Figure 8 As shown, a screening device based on computer vision recognition proposed by the present invention comprises a conveyor belt 1, on which a package 11 is transported, an identification shell 2 is fixedly connected to the upper part of the conveyor belt 1, an adjustment mechanism is symmetrically arranged inside the identification shell 2, an identification camera 10 is fixedly connected to the upper part of the adjustment mechanism, the adjustment mechanism drives the identification camera 10 to rotate to adjust the identification angle, and clamping mechanisms are symmetrically arranged on both sides of the identification shell 2;

[0034] A flipping mechanism is fixedly connected to one side of the clamping mechanism, and the clamping mechanism can drive the flipping mechanism to move and contact the package 11, and the flipping mechanism can drive the clamping plate 17 arranged inside to rotate and flip the package 11. A screening mechanism is arranged at the front end of the conveyor belt 1, and the screening mechanism can drive the screening plate 4 to rotate and screen the package 11;

[0035] The adjustment mechanism includes a transmission groove 19 fixedly connected inside the identification housing 2, a third motor 18 is arranged on the upper part of the transmission groove 19, an adjustment component is arranged on the output end of the third motor 18, and the adjustment component includes a screw rod 20 arranged on the output end of the third motor 18, the screw rod 20 is rotatably connected to the transmission groove 19, a transmission member 21 is threadedly connected to the screw rod 20, the transmission member 21 is slidably connected to the transmission groove 19, a transmission rod 22 is fixedly connected to the upper part of the transmission member 21, the transmission rod 22 is slidably connected to the identification housing 2, a first connecting member 23 is rotatably connected to the upper part of the transmission rod 22, a connecting plate 24 is rotatably connected to the upper part of the first connecting member 23, the connecting plate 24 is rotatably connected to the identification housing 2, and the identification camera 10 is fixedly connected to the upper part of the connecting plate 24;

[0036] The clamping mechanism includes a clamping shell 13 fixedly connected to the identification shell 2, a fourth motor 25 is arranged inside the clamping shell 13, a clamping assembly is arranged at the output end of the fourth motor 25, and the clamping assembly includes a first transmission wheel 26 arranged at the output end of the fourth motor 25, the first transmission wheel 26 is transmission-connected with a transmission belt 28, the transmission belt 28 is transmission-connected with a second transmission wheel 27 at a side away from the first transmission wheel 26, an eccentric shaft 29 is fixedly connected to the lower part of the second transmission wheel 27, a second connecting member 30 is rotationally connected to the lower part of the eccentric shaft 29, a connecting rod 31 is fixedly connected to the second connecting member 30 at a side away from the eccentric shaft 29, and the connecting rod 31 is fixedly connected to the flip shell 12;

[0037] The flipping mechanism includes a flipping shell 12 fixedly connected to the connecting rod 31, a second motor 14 is arranged inside the flipping shell 12, a worm 15 is arranged at the output end of the second motor 14, the worm 15 is meshingly connected with a worm wheel 16, the worm wheel 16 is rotationally connected to the flipping shell 12, a clamping plate 17 is fixedly connected to the side of the worm wheel 16 away from the flipping shell 12, a rubber anti-slip surface is arranged at the front end of the clamping plate 17, and an identification camera 10 is arranged at a position above the two flipping shells 12 inside the identification shell 2, and the identification camera 10 can detect the upper part of the package 11.

[0038] In this embodiment, when the device is in use, the package 11 is transported above the conveyor belt 1. After entering the identification housing 2, it is first detected by the identification camera 10 arranged on the adjustment mechanism. The upper part and both sides of the package 11 can be identified by the identification camera 10, so as to check whether the package 11 is damaged. In addition, by starting the third motor 18, the screw rod 20 can be driven to rotate. The rotation of the screw rod 20 can drive the threaded transmission member 21 to move, and the movement of the transmission member 21 can drive the fixedly connected transmission rod 22 to move. The movement of the transmission rod 22 can drive the first rotatably connected first connection member 23 to rotate. The rotation of the first connection member 23 can drive the rotatably connected connection plate 24 to rotate, thereby driving the identification camera 10 fixedly connected to the upper part of the connection plate 24 to rotate, so as to adjust the identification angle of the identification camera 10, and effectively improve the identification effect of the identification camera 10;

[0039] The package 11 is then transported continuously, and after moving a certain distance, the fourth motor 25 is started, and the first transmission wheel 26 is driven to rotate by the fourth motor 25. The rotation of the first transmission wheel 26 can drive the second transmission wheel 27 connected by the transmission belt 28 to rotate, and the rotation of the second transmission wheel 27 can drive the eccentric shaft 29 fixedly connected to the bottom to rotate, and the rotation of the eccentric shaft 29 can drive the second connecting member 30 to rotate, and the rotation of the second connecting member 30 can drive the rotatably connected connecting rod 31 to move back and forth, and by driving the connecting rod 31 to move forward, the flip mechanism can be driven to move to clamp the two sides of the package 11, and then the second motor 14 is started, and the second motor 1 4 can drive the worm 15 to rotate, and the rotation of the worm 15 can drive the meshing worm wheel 16 to rotate, and the rotation of the worm wheel 16 can drive the fixedly connected clamping plate 17 to rotate, thereby driving the package 11 to rotate, and turning the bottom of the package 11 out. At this time, the recognition camera 10 located above the flip shell 12 can recognize the bottom of the package 11, effectively avoiding the mixing of damaged products at the bottom of the package 11 with qualified products, thereby improving the screening effect of the equipment, and the fourth motor 25 can drive the connecting rod 31 to reciprocate forward and backward, and the forward movement can drive the clamping plate 17 to clamp the package 11, and the backward movement can quickly release the clamping, which can work efficiently and continuously.

[0040] Embodiment 2

[0041] like Figure 1-Figure 8 As shown, the screening mechanism includes a screening housing 3 fixedly connected to the upper part of the conveyor belt 1, a first motor 7 is arranged inside the screening housing 3, and a screening assembly is arranged at the output end of the first motor 7;

[0042] The screening assembly includes a first gear 8 arranged at the output end of the first motor 7, the first gear 8 is meshedly connected with the second gear 9, the second gear 9 is rotationally connected to the screening shell 3, the second gear 9 is fixedly connected with the screening plate 4 on the side away from the screening shell 3, the front end of the conveyor belt 1 is fixedly connected with the screening slot 6, the upper part of the screening slot 6 is fixedly connected with a partition 5, and the screening slot 6 can be divided into two parts by the partition 5.

[0043] In this embodiment, after the package 11 is identified, it continues to move forward driven by the conveyor belt 1, and by starting the first motor 7, the first gear 8 can be driven to rotate. The rotation of the first gear 8 can also drive the meshing second gear 9 to rotate. The rotation of the second gear 9 can drive the screen plate 4 fixedly connected to the bottom to rotate, so that the rotation direction of the screen plate 4 can be controlled according to the result recognized by the recognition camera 10. The package 11 can be guided to different positions on different screening slots 6 through different rotation directions of the screen plate 4, so as to distinguish qualified products from defective products and realize rapid screening of products.

[0044] 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 screening device based on computer vision recognition, comprising a conveyor belt (1), characterized in that: A package (11) is transported on the conveyor belt (1); an identification shell (2) is fixedly connected to the upper part of the conveyor belt (1); an adjustment mechanism is symmetrically arranged inside the identification shell (2); an identification camera (10) is fixedly connected to the upper part of the adjustment mechanism; the adjustment mechanism drives the identification camera (10) to rotate to adjust the identification angle; and clamping mechanisms are symmetrically arranged on both sides of the identification shell (2); A flipping mechanism is fixedly connected to one side of the clamping mechanism, and the clamping mechanism can drive the flipping mechanism to move and contact the package (11). The flipping mechanism can drive the clamping plate (17) arranged inside to rotate and flip the package (11). A screening mechanism is arranged at the front end of the conveyor belt (1), and the screening mechanism can drive the screening plate (4) to rotate and screen the package (11).

2. A screening device based on computer vision recognition according to claim 1, characterized in that: The adjustment mechanism comprises a transmission groove (19) fixedly connected inside the identification housing (2), a third motor (18) is arranged on the upper part of the transmission groove (19), and an adjustment component is arranged at the output end of the third motor (18).

3. A screening device based on computer vision recognition according to claim 2, characterized in that: The adjustment component comprises a screw rod (20) arranged at the output end of the third motor (18), the screw rod (20) being rotatably connected to the transmission groove (19), the screw rod (20) being threadedly connected to a transmission member (21), the transmission member (21) being slidably connected to the transmission groove (19), a transmission rod (22) being fixedly connected to the upper part of the transmission member (21), the transmission rod (22) being slidably connected to the identification housing (2), a first connecting member (23) being rotatably connected to the upper part of the transmission rod (22), a connecting plate (24) being rotatably connected to the upper part of the first connecting member (23), the connecting plate (24) being rotatably connected to the identification housing (2), and a recognition camera (10) being fixedly connected to the upper part of the connecting plate (24).

4. The screening device based on computer vision recognition according to claim 1, characterized in that: The clamping mechanism comprises a clamping shell (13) fixedly connected to the identification shell (2), a fourth motor (25) is arranged inside the clamping shell (13), and a clamping assembly is arranged at the output end of the fourth motor (25).

5. The screening device based on computer vision recognition according to claim 4, characterized in that: The clamping assembly comprises a first transmission wheel (26) arranged at the output end of a fourth motor (25); the first transmission wheel (26) is transmission-connected to a transmission belt (28); the transmission belt (28) is transmission-connected to a second transmission wheel (27) at a side away from the first transmission wheel (26); the lower part of the second transmission wheel (27) is fixedly connected to an eccentric shaft (29); the lower part of the eccentric shaft (29) is rotatably connected to a second connecting member (30); the second connecting member (30) is fixedly connected to a connecting rod (31) at a side away from the eccentric shaft (29); and the connecting rod (31) is fixedly connected to a flip shell (12).

6. The screening device based on computer vision recognition according to claim 1, characterized in that: The flipping mechanism comprises a flipping shell (12) fixedly connected to a connecting rod (31); a second motor (14) is arranged inside the flipping shell (12); a worm (15) is arranged at the output end of the second motor (14); the worm (15) is meshingly connected to a worm wheel (16); the worm wheel (16) is rotationally connected to the flipping shell (12); a clamping plate (17) is fixedly connected to the side of the worm wheel (16) away from the flipping shell (12); and a rubber anti-slip surface is arranged at the front end of the clamping plate (17).

7. The screening device based on computer vision recognition according to claim 1, characterized in that: An identification camera (10) is arranged inside the identification shell (2) at a position above the two flip shells (12), and the identification camera (10) is capable of detecting the upper part of the package (11).

8. The screening device based on computer vision recognition according to claim 1, characterized in that: The screening mechanism comprises a screening housing (3) fixedly connected to the upper part of the conveyor belt (1), a first motor (7) is arranged inside the screening housing (3), and a screening component is arranged at the output end of the first motor (7).

9. The screening device based on computer vision recognition according to claim 8, characterized in that: The screening assembly comprises a first gear (8) arranged at the output end of a first motor (7), the first gear (8) being meshingly connected with a second gear (9), the second gear (9) being rotationally connected to a screening housing (3), and a screening plate (4) being fixedly connected to a side of the second gear (9) away from the screening housing (3).

10. The screening device based on computer vision recognition according to claim 1, characterized in that: The front end of the conveyor belt (1) is fixedly connected to a screening trough (6), and the upper part of the screening trough (6) is fixedly connected to a partition plate (5), and the screening trough (6) can be divided into two parts by the partition plate (5).

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