Device for detecting bottle cap through machine vision

Abstract

The utility model relates to the technical field of bottle cap detection, in particular to a device for detecting a bottle cap by utilizing machine vision, which comprises a workbench and an electric telescopic rod, the upper end of the workbench is fixedly connected with the electric telescopic rod, the output end of the electric telescopic rod is fixedly connected with a bent plate, the end part of the bent plate is fixedly connected with image acquisition equipment, and the image acquisition equipment is connected with a computer. A centering structure is arranged below the workbench, a second magnet is placed above the centering structure, and an angle adjusting structure is arranged on the left side of the upper portion of the workbench. Through the cooperation of the centering structure and a worker, bottle caps can be accurately placed at the same position every time, the position of the device does not need to be frequently adjusted, the working efficiency is improved, through the cooperation of the angle adjusting structure and the reflective mirror, the motor drives the reflective mirror to rotate, and the reflective mirror is adjusted to the proper position; workers do not need to adjust the angle of the reflective mirror any more, and the limitation of the device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle cap detection, in particular to a device for detecting bottle caps by using machine vision. Background Technique

[0002] The bottle cap is an important component for packaging food. The bottle cap mainly has a sealing performance, and also has auxiliary functions in terms of anti-theft, anti-counterfeiting and safety. Therefore, it is widely used in bottled products in daily life, industry and agriculture, medicine and other fields. Common bottle caps include aluminum caps, plastic caps and aluminum-plastic caps, etc. In order to ensure the sealing performance, it is necessary to ensure that the dimensional accuracy of the bottle cap meets the standard.

[0003] For example, a device for detecting bottle caps by using machine vision with the publication number of "CN221549612U" can fix the bottle cap on the positioning plate through the first magnet and the second magnet, and a reflector is fixedly installed on one side of the positioning plate. When the image acquisition device acquires images from above the positioning plate, it not only acquires the image of the bottle cap, but also acquires the image in the reflector, and then directly analyzes data such as the diameter and height of the bottle cap by combining the two images, quickly and accurately determining the relevant data of the bottle cap. However, when the staff places the bottle cap inside the device and presses it tightly, it is placed by hand and cannot accurately place the bottle cap at the specified position, resulting in more frequent adjustment of the position of the internal structure of the device when measuring the bottle cap, reducing the working efficiency of the device. At the same time, when adjusting the angle of the reflector, the staff needs to move the adjustment structure to clamp the structure inside the card slot. There is a certain distance between the card slots and it cannot be adjusted to any angle, so the device has limitations. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the bottle cap cannot be accurately placed at the specified position, resulting in more frequent adjustment of the position of the internal structure of the device when measuring the bottle cap, reducing the working efficiency of the device, and it cannot be adjusted to any angle, so the device has limitations, and a device for detecting bottle caps by using machine vision is proposed.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] Design a device for detecting bottle caps by using machine vision, including a workbench and an electric telescopic rod. The upper end of the workbench is fixedly connected to the electric telescopic rod. The output end of the electric telescopic rod is fixedly connected to a bent plate. The end of the bent plate is fixedly connected to an image acquisition device. A centering structure is arranged below the workbench. A second magnet is placed above the centering structure. An angle adjustment structure is arranged on the upper left side of the workbench.

[0007] Preferably, the centering structure includes a housing, the outer wall of the housing is fixedly connected to the workbench, the inner wall of the housing is rotatably connected to the base through a bearing, a circular plate is fixedly connected to the upper end of the base, a second handle is fixedly connected to the outer wall of the circular plate, a chute is processed inside the circular plate, the chute is slidably connected to a cylinder, the cylinder is slidably connected to the housing, a first magnet is fixedly connected to the upper end of the housing, and a second magnet is placed on the upper end of the first magnet.

[0008] Preferably, the angle adjustment structure includes a motor, the motor is fixedly connected to the workbench, the output end of the motor is fixedly connected to a threaded rod, both ends of the threaded rod are rotatably connected to a box body through bearings, the lower end of the box body is fixedly connected to the workbench, the threaded rod is threadedly connected to a threaded block, the lower end of the threaded block is slidably connected to the workbench, both ends of the threaded block are movably connected to a straight rod through a pin shaft, the straight rod is movably connected to the middle of a bottom plate through a pin shaft, and the bottom plate is movably connected to a protrusion processed on the upper end of the workbench through a pin shaft.

[0009] Preferably, a baffle is fixedly connected to the end of the bottom plate, a reflector is placed above the bottom plate, and the end of the reflector is in contact with the baffle.

[0010] Preferably, vertical plates are fixedly connected to both sides of the upper end of the bottom plate, the vertical rod is slidably connected to a circular rod, a first handle and a pressing plate are respectively fixedly connected to both ends of the circular rod, and the pressing plate abuts against the reflector.

[0011] Preferably, a spring is sleeved on the outer wall of the circular rod, and both ends of the spring are fixedly connected to the vertical plate and the pressing plate respectively.

[0012] For a device for detecting bottle caps using machine vision proposed by the present utility model, the beneficial effects are as follows: Through the cooperation of the centering structure and the staff, the staff rotates the second handle, the second handle rotates to drive the circular plate to rotate, the circular plate rotates to drive the chute to rotate, the chute rotates to drive the cylinder to slide inside the chute, and multiple cylinders move closer to the inside until all cylinders are in contact with the surface of the bottle cap. Then, the second magnet is placed inside the bottle cap, and the first magnet and the second magnet press the bottle cap tightly, so that the bottle cap can be accurately placed in the same position each time, without the need to frequently adjust the position of the device, improving work efficiency.

[0013] Through the cooperation of the angle adjustment structure and the reflector, the motor drives the threaded rod to rotate, the threaded rod rotates to drive the threaded block to move, the threaded block moves to drive the straight rod to move, the straight rod moves to drive the bottom plate to rotate around the rightmost end of the bottom plate, the bottom plate rotates to drive the reflector to rotate, and the reflector is adjusted to a suitable position, eliminating the need for staff to adjust the angle of the reflector and reducing the limitations of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of the present utility model;

[0015] Figure 2 is Figure 1 the front elevation sectional view of;

[0016] Figure 3 is Figure 2 the schematic diagram of part A;

[0017] Figure 4 is Figure 1 the partial front elevation sectional view of;

[0018] Figure 5 is Figure 1 the partial top view sectional view of;

[0019] Figure 6 is Figure 3 the partial side view of.

[0020] In the figure: 1. Workbench, 2. Centering structure, 201. Outer shell, 202. Base, 203. Circular plate, 204. Second handle, 205. Slide groove, 206. Cylinder, 3. First magnet, 4. Second magnet, 5. Angle adjustment structure, 501. Motor, 502. Threaded rod, 503. Box body, 504. Threaded block, 505. Straight rod, 506. Bottom plate, 6. Baffle, 7. Reflector, 8. Vertical plate, 9. Circular rod, 10. First handle, 11. Spring, 12. Pressing plate, 13. Electric telescopic rod, 14. Bent plate, 15. Image acquisition device. Detailed implementation manners

[0021] The present utility model will be further described below in conjunction with the accompanying drawings:

[0022] Refer to the attached Figures 1-6 :

[0023] In this embodiment, a device for detecting bottle caps using machine vision includes a workbench 1 and an electric telescopic rod 13. The upper end of the workbench 1 is fixedly connected to the electric telescopic rod 13. The model of the electric telescopic rod 13 is selected according to the actual working requirements to meet the working needs. The output end of the electric telescopic rod 13 is fixedly connected to a bent plate 14. The movement of the output end of the electric telescopic rod 13 can drive the bent plate 14 to move. The end of the bent plate 14 is fixedly connected to an image acquisition device 15. The model and type of the image acquisition device 15 can be selected according to the specific usage situation. The movement of the bent plate 14 can drive the image acquisition device 15 to move. A centering structure 2 is provided below the workbench 1, and a second magnet 4 is placed above the centering structure 2. An angle adjustment structure 5 is provided on the upper left side of the workbench 1.

[0024] Refer to the attached Figures 1-2 and Figures 4 - 5:

[0025] The centering structure 2 includes a housing 201. The outer wall of the housing 201 is fixedly connected to the workbench 1. The inner wall of the housing 201 is rotatably connected to a base 202 through a bearing. A circular plate 203 is fixedly connected to the upper end of the base 202. A second handle 204 is fixedly connected to the outer wall of the circular plate 203. Rotating the second handle 204 can drive the circular plate 203 to rotate. A chute 205 is machined inside the circular plate 203. The chute 205 is slidably connected to a cylinder 206. Rotating the circular plate 203 can drive the chute 205 to rotate and at the same time drive the cylinder 206 to slide inside the chute 205. The cylinder 206 is slidably connected to the housing 201. A first magnet 3 is fixedly connected to the upper end of the housing 201. A second magnet 4 is placed on the upper end of the first magnet 3. The first magnet 3 and the second magnet 4 can fix the bottle cap.

[0026] Refer to the appendix Figures 1-3 and 6:

[0027] The angle adjustment structure 5 includes a motor 501. The model of the motor 501 is selected according to the actual working requirements to meet the working needs. The motor 501 is fixedly connected to the workbench 1. A threaded rod 502 is fixedly connected to the output end of the motor 501. Rotating the output shaft of the motor 501 can drive the threaded rod 502 to rotate. Both ends of the threaded rod 502 are rotatably connected to a box body 503 through bearings. The lower end of the box body 503 is fixedly connected to the workbench 1. The threaded rod 503 is threadedly connected to a threaded block 504. Rotating the threaded rod 503 can drive the threaded block 504 to move. The lower end of the threaded block 504 is slidably connected to the workbench 1;

[0028] Both ends of the threaded block 504 are movably connected to a straight rod 505 through pin shafts. The straight rod 505 is movably connected to the middle part of a bottom plate 506 through a pin shaft. The bottom plate 506 is movably connected to a protrusion machined on the upper end of the workbench 1 through a pin shaft. Moving the threaded block 504 can drive the straight rod 505 to move, causing the straight rod 505 to drive a baffle 6 to rotate around the rightmost end. A baffle 6 is fixedly connected to the end of the bottom plate 506. A reflector 7 is placed above the bottom plate 506. Rotating the baffle 6 drives the reflector to rotate to adjust the angle of the reflector 7. The end of the reflector 7 is in contact with the baffle 6. Vertical plates 8 are fixedly connected to both sides of the upper end of the bottom plate 506. The vertical rod 8 is slidably connected to a round rod 9. First handles 10 and pressing plates 12 are respectively fixedly connected to both ends of the round rod 9. The pressing plate 12 abuts against the reflector 7. A spring 11 is sleeved on the outer wall of the round rod 9. Both ends of the spring 11 are fixedly connected to the vertical plate 8 and the pressing plate 12 respectively.

[0029] Working principle:

[0030] When the bottle cap needs to be detected, first the staff removes the second magnet 4, then places the bottle cap with the opening facing upward above the first magnet 3, and then pulls the first handles 10 on both sides and places the reflector 7 above the bottom plate 506. Release the first handles 10 to make the pressing plate 12 press the reflector 7 tightly, preparing for the bottle cap detection work.

[0031] Alignment work:

[0032] The staff rotates the second handle 204. The rotation of the second handle 204 drives the rotation of the circular plate 203. The rotation of the circular plate 203 drives the rotation of the sliding groove 205. The rotation of the sliding groove 205 drives the sliding of the cylinder 206 inside the sliding groove 205. Multiple cylinders 206 move closer to the inside until all cylinders 206 are in contact with the surface of the bottle cap. Then place the second magnet 4 inside the bottle cap to make the first magnet 3 and the second magnet 4 press the bottle cap tightly. After the detection is completed, just remove the second magnet 4, and then take out the bottle cap and drive the cylinder 206 to reset.

[0033] Angle adjustment work:

[0034] After the bottle cap is fixed, first connect the external power supply of the electric telescopic rod 13 and start the electric telescopic rod 13 to drive the bending plate 14 to move. The movement of the bending plate 14 drives the movement of the image acquisition device 15 to adjust the image acquisition device 15 to a suitable position. Then connect the external power supply of the motor 501 and start the motor 501 to drive the threaded rod 502 to rotate. The rotation of the threaded rod 502 drives the movement of the threaded block 504. The movement of the threaded block 504 drives the movement of the straight rod 505. The movement of the straight rod 505 drives the bottom plate 506 to rotate around the rightmost end of the bottom plate 506. The rotation of the bottom plate 506 drives the rotation of the reflector 7 to adjust the reflector 7 to a suitable position.

[0035] The image acquisition device 15 above the positioning plate acquires the image of the bottle cap and the image in the reflector 7, and then uploads the image of the bottle cap and the image in the reflector 7 to the image analysis device. The image analysis device analyzes the image of the bottle cap to determine data such as the diameter of the bottle cap, and analyzes the image in the reflector to determine data such as the height of the bottle cap, thereby completing the measurement of the data of the bottle cap.

[0036] Although the present utility model has been illustrated and described by reference to the preferred embodiments, those of ordinary skill in the art should understand that various changes in form and details may be made within the scope of the claims.

Claims

1. An apparatus for detecting bottle caps using machine vision, comprising a workbench (1) and an electric telescopic rod (13), wherein the upper end of the workbench (1) is fixedly connected to the electric telescopic rod (13), and is characterized in that: The output end of the electric telescopic rod (13) is fixedly connected with a bent plate (14), the end of the bent plate (14) is fixedly connected with an image acquisition device (15), a centering structure (2) is arranged below the workbench (1), a second magnet (4) is placed above the centering structure (2), and an angle adjustment structure (5) is arranged on the upper left side of the workbench (1).

2. The device for detecting the bottle cap using machine vision according to claim 1, wherein: The centering structure (2) includes a housing (201), the outer wall of the housing (201) is fixedly connected with the workbench (1), the inner wall of the housing (201) is rotatably connected with a base (202) through a bearing, the upper end of the base (202) is fixedly connected with a circular plate (203), the outer wall of the circular plate (203) is fixedly connected with a second handle (204), a chute (205) is processed inside the circular plate (203), the chute (205) is slidably connected with a cylinder (206), the cylinder (206) is slidably connected with the housing (201), the upper end of the housing (201) is fixedly connected with a first magnet (3), and a second magnet (4) is placed above the first magnet (3).

3. The device for detecting bottle caps using machine vision according to claim 1, characterized in that: The angle adjustment structure (5) includes a motor (501), the motor (501) is fixedly connected with the workbench (1), the output end of the motor (501) is fixedly connected with a threaded rod (502), both ends of the threaded rod (502) are rotatably connected with a box body (503) through bearings, the lower end of the box body (503) is fixedly connected with the workbench (1), the threaded rod (502) is threadedly connected with a threaded block (504), the lower end of the threaded block (504) is slidably connected with the workbench (1), both ends of the threaded block (504) are movably connected with a straight rod (505) through pin shafts, the straight rod (505) is movably connected with the middle part of a bottom plate (506) through a pin shaft, and the bottom plate (506) is movably connected with a protrusion processed on the upper end of the workbench (1) through a pin shaft.

4. The device for detecting the bottle cap using machine vision according to claim 3, wherein: A baffle (6) is fixedly connected to the end of the bottom plate (506), a reflector (7) is placed above the bottom plate (506), and the end of the reflector (7) is in contact with the baffle (6).

5. The device for detecting the bottle cap by using machine vision according to claim 3, characterized in that: Vertical plates (8) are fixedly connected to both sides of the upper end of the bottom plate (506), the vertical plates (8) are slidably connected with a round rod (9), a first handle (10) and a pressing plate (12) are respectively fixedly connected to both ends of the round rod (9), and the pressing plate (12) is pressed against the reflector (7).

6. The device for detecting bottle caps using machine vision according to claim 5, wherein: A spring (11) is sleeved on the outer wall of the round rod (9), and both ends of the spring (11) are fixedly connected with the vertical plate (8) and the pressing plate (12) respectively.

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