Machine vision detection device for production and processing

By designing machine vision detection devices for flip plates and support plates, the problem of only one side of the item in the prior art is solved, and automatic detection of six sides of the item is realized, which improves operational convenience and detection efficiency.

CN119534469AInactive Publication Date: 2025-02-28NANJING FORESTRY UNIV
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Patent Information

Application Number
CN202411845831.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-02-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing machine vision detection device can only detect one side of the item, and requires personnel to turn over the animal to detect multiple sides, which is inconvenient to operate.

Method used

A machine vision detection device including a rack, a mount and a scanning camera is designed. The flip and horizontal rotation of the item are achieved through the rotation of the flip plate and the support plate, so that the upper scan camera and the side scan camera can detect six sides of the item.

Benefits of technology

It is possible to detect all six sides of the item, without the need for personnel to turn on the animal, improving the detection efficiency and convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a machine vision detection device for production and processing, which comprises a rack, two mounting racks and an upper scanning camera, the two mounting racks are mounted on the rack, and the upper scanning camera and a side scanning camera are respectively mounted on the top and the side edge of each mounting rack, the machine vision detection device is characterized in that an overturning plate is rotatably arranged on the inner side of the rack through a shaft rod; an object is overturned through the overturning plate so that the upper scanning camera can visually detect the bottom of the object, the adjusting mechanism is installed on the rack and enables the periphery of the object to be visually detected by the side scanning camera, the supporting plate is located on the inner side of the rack, and the object can rotate in the horizontal direction through rotation of the supporting plate. According to the machine vision detection device for production and processing, the supporting plate rotates in the horizontal direction, then the periphery of an object is detected by the side scanning camera, the overturning plate instantly rotates to turn over the object, the bottom face of the object is turned up, and then the upper scanning camera and the side scanning camera are matched to detect the six faces of the object; and the objects do not need to be turned over by personnel.
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Description

Technical Field

[0001] The present invention relates to the technical field of machine vision detection, and in particular to a machine vision detection device for production and processing. Background Art

[0002] Machine vision inspection is an advanced automation technology that mimics the capabilities of the human visual system and uses cameras, image sensors, image processing software and other hardware components to automatically capture, analyze and understand images to measure, inspect and judge target objects.

[0003] For example, a machine vision inspection device with publication number CN118518678A includes a wiring base, a conveyor belt arranged on the wiring base, and a scanning camera arranged above the conveyor belt. When the conveyor belt transports the product, the width detection mechanism and the height detection mechanism synchronously detect the product and drive the adjustment mechanism to synchronously adjust the scanning camera.

[0004] The above-mentioned machine vision inspection device transports the objects via a conveyor belt, and the scanning camera above the conveyor belt performs machine vision inspection on the objects. Since the contact surface between the objects and the conveyor belt is fixed, the machine vision inspection device can only detect one side of the objects during the inspection process. When multiple sides of the objects need to be inspected, personnel are required to turn the objects over, which is inconvenient to operate. Summary of the invention

[0005] The purpose of the present invention is to provide a machine vision inspection device for production and processing, so as to solve the problem raised by the above background technology that the machine vision inspection devices on the market can only detect one side of an object during the inspection process. When multiple sides of the object need to be inspected, personnel need to turn the object over, which is inconvenient to operate.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a machine vision inspection device for production and processing, comprising a frame, a mounting frame and an upper scanning camera, two mounting frames are installed on the frame, and the upper scanning camera and the side scanning camera are installed on the top and side of the mounting frame respectively. It is characterized in that a flip plate is rotated on the inner side of the frame through an axis rod, and the object is flipped by the flip plate so that the upper scanning camera can visually inspect the bottom of the object. An adjustment mechanism is installed on the frame, and the adjustment mechanism enables the side scanning camera to visually detect all sides of the object. The support plate is located on the inner side of the frame, and the object is rotated in the horizontal direction by rotating the support plate.

[0007] Preferably, the frame is sequentially mounted with a first conveyor belt, a second conveyor belt and a third conveyor belt, and shafts of the first conveyor belt and the second conveyor belt are connected to output ends of a motor mounted on the frame.

[0008] Preferably, the adjustment mechanism includes a support plate, a rotating rod, a transmission rod and a fixed rod. The rotating rod is rotatably connected to the frame, a transmission rod is installed on the top of the rotating rod, a fixed rod is inserted into the transmission rod, and a support plate is installed on the top of the fixed rod.

[0009] Preferably, the cross-sections of the fixing rod and the transmission rod are non-circular structures, the outside of the fixing rod fits inside the transmission rod, and the overlapping height of the fixing rod and the transmission rod is greater than the lifting distance of the transmission rod.

[0010] Preferably, a first conveyor belt is installed on the frame, and a bevel gear assembly is provided between the shaft rod and the rotating rod of the first conveyor belt, and the bevel gear assembly consists of two meshing bevel gears;

[0011] A full gear is installed on the shaft rod at the other end of the first conveyor belt, a sector gear is installed on the shaft rod on one side of the third conveyor belt, and a full gear is installed on the frame, the full gear is located on the left and right sides of the sector gear, and the sector gear and the full gear are meshed with each other;

[0012] A third conveyor belt is installed on the fan-shaped gear near the side of the frame. The other end of the third conveyor belt is rotatably connected to the frame and is installed with a fan-shaped gear. A full gear is rotatably connected to one side of the frame near the third conveyor belt. A second conveyor belt is installed between the full gear and the shaft of the flip plate.

[0013] Preferably, the flip plate is located between the first conveyor belt and the second conveyor belt, and the support plate is located between the second conveyor belt and the third conveyor belt.

[0014] Preferably, a push rod is installed on the frame, the top of the push rod is in contact with the bottom of the support plate, and a connecting plate is installed between two adjacent push rods;

[0015] A cam is mounted on the shaft of the sector gear, and a connecting plate is located above the cam.

[0016] Preferably, the full gear and the frame below the first conveyor belt are provided with a torsion spring, and the turning plate rotates upward in a counterclockwise direction;

[0017] The running directions of the first conveyor belt, the second conveyor belt and the third conveyor belt move from a side close to the first conveyor belt to a side away from the first conveyor belt.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The support plate of the present invention is rotated by a bevel gear assembly. The support plate rotates horizontally, so that the four sides of the object are detected by the side scanning camera. The flip plate rotates instantly to turn the object over, so that the bottom of the object is turned up, and then the cooperation of the upper scanning camera and the side scanning camera can detect the six sides of the object, without the need for personnel to turn the object over.

[0020] 2. The present invention is provided with a cam, a push rod and a connecting plate. When the cam rotates to contact the connecting plate, the cam pushes the connecting plate upward, and the connecting plate and the push rod move upward to make the supporting plate protrude above the upper ends of the second conveyor belt and the third conveyor belt, thereby preventing the second conveyor belt and the third conveyor belt from affecting the normal horizontal rotation of the supporting plate.

[0021] 3. The present invention arranges sector gears and full gears so that the third conveyor belt can run in a gap. When the third conveyor belt is not running, the support plate rotates to prevent items on the third conveyor belt from continuously moving onto the support plate. When the third conveyor belt is running, the support plate remains horizontal and motionless, and the support plate realizes the load-bearing function. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a rear view structural schematic diagram of the present invention;

[0024] Figure 3 It is a bottom view structural schematic diagram of the present invention;

[0025] Figure 4 It is a schematic diagram of the cam structure of the present invention;

[0026] Figure 5 It is a schematic diagram of the side view structure of the push rod of the present invention;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the push rod of the present invention;

[0028] Figure 7 For the present invention Figure 4 Enlarged structural diagram at A in the middle.

[0029] In the figure: 1, frame; 2, first conveyor belt; 3, mounting frame; 4, flip plate; 5, second conveyor belt; 6, side scanning camera; 7, upper scanning camera; 8, third conveyor belt; 9, first conveyor belt; 10, second conveyor belt; 11, full gear; 12, fan gear; 13, third conveyor belt; 14, motor; 15, support plate; 16, push rod; 17, connecting plate; 18, torsion spring; 19, cam; 20, rotating rod; 21, transmission rod; 22, fixing rod; 23, bevel gear assembly; 23. DETAILED DESCRIPTION

[0030] 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.

[0031] See also Figure 1-Figure 7 , the present invention provides a technical solution:

[0032] A machine vision inspection device for production and processing includes a frame 1, a mounting frame 3 and an upper scanning camera 7, two mounting frames 3 are installed on the frame 1, and the upper scanning camera 7 and the side scanning camera 6 are installed on the top and side of the mounting frame 3 respectively, and the first conveyor belt 2, the second conveyor belt 5 and the third conveyor belt 8 are installed on the frame 1 in sequence, the shafts of the first conveyor belt 2 and the second conveyor belt 5 are connected to the output end of the motor 14 installed on the frame 1, the output end of the motor 14 is connected to the side fan gear 12, and the shaft of the third conveyor belt 8 is connected to the full gear 11.

[0033] Place the items on the third conveyor belt 8, connect the motor 14 to the power supply, and after the motor 14 is powered on, the third conveyor belt 8, the second conveyor belt 5 and the first conveyor belt 2 are operated. The items move from one end of the third conveyor belt 8 to the other end, and the motor 14 causes the side full gear 11, the second conveyor belt 5 and the first conveyor belt 2 to rotate.

[0034] A flip plate 4 is rotated on the inner side of the frame 1 through an axis rod. The article is flipped through the flip plate 4 so that the upper scanning camera 7 can visually detect the bottom of the article. The flip plate 4 is located between the first conveyor belt 2 and the second conveyor belt 5, and the support plate 15 is located between the second conveyor belt 5 and the third conveyor belt 8. The full gear 11 under the first conveyor belt 9 and the frame 1 are provided with a torsion spring 18. The flip plate 4 rotates upward in a counterclockwise direction; the running direction of the first conveyor belt 2, the second conveyor belt 5 and the third conveyor belt 8 moves from the side close to the first conveyor belt 9 to the side away from the first conveyor belt 9.

[0035] When the sector gear 12 in the middle rotates and meshes with the full gear 11 next to it, the sector gear 12 rotates to rotate the full gear 11 next to it, the sector gear 12 in the middle rotates clockwise, and the full gear 11 next to it rotates counterclockwise. The full gear 11 rotates to rotate the second conveyor belt 10, and the rotation of the second conveyor belt 10 drives the flip plate 4 to rotate synchronously counterclockwise. The flip plate 4 rotates instantly to flip the items placed on the flip plate 4 onto the first conveyor belt 2, so that the bottom of the items flips to the top, and then the first conveyor belt 2 moves the flipped items to the bottom of the upper scanning camera 7 close to the flip plate 4, and the upper scanning camera 7 identifies and detects the items. In this way, all six sides of the items can be detected, and there is no need for personnel to flip the items. When the sector gear 12 in the middle rotates and does not mesh with the full gear 11 next to it, the elastic force of the torsion spring 18 rotates the flip plate 4 clockwise, so that the flip plate 4 rotates to a horizontal position.

[0036] An adjusting mechanism is installed on the frame 1, and the adjusting mechanism enables the side scanning camera 6 to visually detect all sides of the object. The support plate 15 is located on the inner side of the frame 1, and the object is rotated horizontally by rotating the support plate 15. The adjusting mechanism includes the support plate 15, a rotating rod 20, a transmission rod 21 and a fixed rod 22. The rotating rod 20 is rotatably connected to the frame 1, and a transmission rod 21 is installed on the top of the rotating rod 20. A fixed rod 22 is inserted inside the transmission rod 21, and the support plate 15 is installed on the top of the fixed rod 22. The cross-section of the fixed rod 22 and the transmission rod 21 is a non-circular structure, and the outer side of the fixed rod 22 is fitted inside the transmission rod 21. The overlapping height of the fixed rod 22 and the transmission rod 21 is greater than the lifting distance of the transmission rod 21. A push rod 16 is installed on the frame 1, and the top of the push rod 16 is in contact with the bottom of the support plate 15. Two adjacent push rods 16 are installed with a connecting plate 17; the shaft of the sector gear 12 is installed with a cam 19, and the connecting plate 17 is located above the cam 19.

[0037] The rotation of the middle sector gear 12 drives the cam 19 to rotate synchronously. When the cam 19 rotates to contact the connecting plate 17, the cam 19 pushes the connecting plate 17 to move the connecting plate 17 upward. During the upward movement of the connecting plate 17, the push rod 16 is driven to move upward synchronously. The push rod 16 moves upward to push the support plate 15. When the support plate 15 moves to the top, the middle sector gear 12 does not rotate. At this time, the side sector gear 12 is meshed with the full gear 11 on the first conveyor belt 9, and is not meshed with the other full gear 11 on the side. The side sector gear 12 causes the full gear 11 on the first conveyor belt 9 to rotate, the full gear 11 on the first conveyor belt 9 rotates to cause the first conveyor belt 9 to rotate, the first conveyor belt 9 rotates to cause the bevel gear assembly 23 to rotate, the bevel gear assembly 23 rotates to cause the rotating rod 20 to rotate, the rotating rod 20 rotates to drive the transmission rod 21 to rotate synchronously, the transmission rod 21 rotates to drive the fixed rod 22 to rotate synchronously, the fixed rod 22 rotates to cause the support plate 15 to rotate, and then the support plate 15 can rotate during the process of rising and falling, the support plate 15 rotates to cause the objects placed above to rotate, and the side scanning camera 6 detects the surroundings of the objects.

[0038] A first conveyor belt 9 is installed on the frame 1, and a bevel gear assembly 23 is arranged between the shaft of the first conveyor belt 9 and the rotating rod 20, and the bevel gear assembly 23 is composed of two meshing bevel gears; a full gear 11 is installed on the shaft at the other end of the first conveyor belt 9, a fan gear 12 is installed on the shaft on one side of the third conveyor belt 8, and a full gear 11 is installed on the frame 1, and the full gear 11 is located on the left and right sides of the fan gear 12, and the fan gear 12 and the full gear 11 are meshed with each other; a third conveyor belt 13 is installed on the fan gear 12 close to the side of the frame 1, and the other end shaft of the third conveyor belt 13 is rotatably connected to the frame 1 and is installed with the fan gear 12, and the frame 1 is rotatably connected to the full gear 11 on the side close to the third conveyor belt 13, and a second conveyor belt 10 is installed between the full gear 11 and the shaft of the flip plate 4.

[0039] When the side sector gear 12 rotates to mesh with the side full gear 11, the side full gear 11 drives the middle sector gear 12 to rotate synchronously through the third conveyor belt 13. The third conveyor belt 8 runs during the up and down movement of the support plate 15. The up and down movement distance of the support plate 15 is less than the height of the article. Therefore, the up and down movement of the support plate 15 can always resist the article to prevent the article from continuing to move between the second conveyor belt 5 and the third conveyor belt 8. When the support plate 15 rotates, the third conveyor belt 8 does not run, which can prevent the article from continuing to move and falling between the second conveyor belt 5 and the third conveyor belt 8 when the support plate 15 rotates.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A machine vision inspection device for production and processing, comprising a frame (1), a mounting frame (3) and an upper scanning camera (7), wherein two mounting frames (3) are mounted on the frame (1), and an upper scanning camera (7) and a side scanning camera (6) are mounted on the top and side of the mounting frame (3), respectively, characterized in that: A flip plate (4) is provided on the inner side of the frame (1) and is rotated by a shaft. The flip plate (4) flips the object so that the upper scanning camera (7) can visually detect the bottom of the object. An adjustment mechanism is installed on the frame (1). The adjustment mechanism enables all sides of the object to be visually detected by the side scanning camera (6). A support plate (15) is located on the inner side of the frame (1). The object can be rotated in the horizontal direction by rotating the support plate (15).

2. A machine vision inspection device for production and processing according to claim 1, characterized in that: The frame (1) is provided with a first transmission belt (2), a second transmission belt (5) and a third transmission belt (8) in sequence, the shafts of the first transmission belt (2) and the second transmission belt (5) are connected to the output end of a motor (14) installed on the frame (1), the output end of the motor (14) is connected to a side fan-shaped gear (12), and the shaft of the third transmission belt (8) is connected to a full gear (11).

3. The machine vision inspection device for production and processing according to claim 1, characterized in that: The adjustment mechanism comprises a support plate (15), a rotating rod (20), a transmission rod (21) and a fixed rod (22); the rotating rod (20) is rotatably connected to the frame (1); the transmission rod (21) is mounted on the top of the rotating rod (20); the fixed rod (22) is inserted into the transmission rod (21); and the support plate (15) is mounted on the top of the fixed rod (22).

4. A machine vision inspection device for production and processing according to claim 3, characterized in that: The cross-sections of the fixed rod (22) and the transmission rod (21) are non-circular structures, the outside of the fixed rod (22) fits inside the transmission rod (21), and the overlapping height of the fixed rod (22) and the transmission rod (21) is greater than the lifting distance of the transmission rod (21).

5. The machine vision inspection device for production and processing according to claim 1, characterized in that: A first conveyor belt (9) is installed on the frame (1), and a bevel gear assembly (23) is arranged between the shaft of the first conveyor belt (9) and the rotating rod (20), and the bevel gear assembly (23) is composed of two meshing bevel gears; A full gear (11) is installed on the shaft rod at the other end of the first conveyor belt (9), a sector gear (12) is installed on the shaft rod at one side of the third conveyor belt (8), a full gear (11) is installed on the frame (1), the full gear (11) is located on the left and right sides of the sector gear (12), and the sector gear (12) and the full gear (11) are meshed with each other; A third conveyor belt (13) is installed on the fan-shaped gear (12) near the side of the frame (1); the other end of the shaft rod of the third conveyor belt (13) is rotatably connected to the frame (1) and is installed with the fan-shaped gear (12); a full gear (11) is rotatably connected to the side of the frame (1) near the third conveyor belt (13); a second conveyor belt (10) is installed between the full gear (11) and the shaft rod of the flip plate (4).

6. The machine vision inspection device for production and processing according to claim 1, characterized in that: The flip plate (4) is located between the first conveyor belt (2) and the second conveyor belt (5), and the support plate (15) is located between the second conveyor belt (5) and the third conveyor belt (8).

7. The machine vision inspection device for production and processing according to claim 1, characterized in that: A push rod (16) is installed on the frame (1), the top of the push rod (16) contacts the bottom of the support plate (15), and two adjacent push rods (16) are installed with a connecting plate (17); The shaft of the sector gear (12) is provided with a cam (19), and the connecting plate (17) is located above the cam (19).

8. The machine vision inspection device for production and processing according to claim 5, characterized in that: The full gear (11) below the first conveyor belt (9) and the frame (1) are provided with a torsion spring (18), and the turning plate (4) rotates upward in a counterclockwise direction; The running directions of the first conveyor belt (2), the second conveyor belt (5) and the third conveyor belt (8) move from a side close to the first conveyor belt (9) to a side away from the first conveyor belt (9).

Citation Information

Patent Citations

  • Machine vision detection device

    CN118518678A