A labeling quality detection mechanism and labeling machine based on machine vision

Abstract

The invention belongs to the technical field of detection mechanisms, and discloses a labeling quality detection mechanism and a labeling machine based on machine vision, comprising a transparent sleeve, the inner surface of the transparent sleeve is fixedly connected with a cross frame, the inner surface of the cross frame is rotatably connected with a threaded sleeve, the outer surface of the threaded sleeve is threadedly connected with a bevel gear ring, the bottom outer surface of the bevel gear ring is rotatably connected with an auxiliary sleeve ring, the bottom inner surface of the auxiliary sleeve ring is threadedly connected with the outer surface of the threaded sleeve, the auxiliary sleeve ring is connected to the bevel gear ring through a lateral bevel gear, the other end of the lateral bevel gear is fixedly connected with a turntable, the bottom end of the auxiliary sleeve ring is fixedly connected with a rack, the rack is meshed with an auxiliary gear, the middle outer surface of the auxiliary gear is rotatably connected with a linkage arm, the other end of the linkage arm is rotatably connected with a fixed disk, and the outer surface of the fixed disk is fixedly connected with a camera. The invention solves the problems of incomplete detection angle and inaccurate positioning.

Description

Technical Field

[0001] The present invention belongs to the technical field of detection mechanisms, and in particular relates to a labeling quality detection mechanism and a labeling machine based on machine vision. Background Art

[0002] A labeling machine is a device that uses adhesive to stick paper or metal foil labels on specified packaging containers. It is an indispensable part of modern packaging. At present, the types of labeling machines produced in my country are gradually increasing, and the technical level has also been greatly improved. It has shifted from the backward situation of manual and semi-automatic labeling to the situation where automated high-speed labeling machines occupy a large market. Existing labeling machines need to be tested and sprayed with codes after completing labeling. During the use of existing labeling machines, the labeling quality inspection mechanism will have incomplete detection angles resulting in inaccurate detection, and there will also be inaccurate positioning, which affects the overall use. Summary of the invention

[0003] The present invention aims at solving the problems of incomplete detection angle and inaccurate positioning in the prior art and proposes the following technical solutions:

[0004] A labeling quality inspection mechanism and labeling machine based on machine vision, characterized in that it comprises a transparent sleeve, the inner surface of the transparent sleeve is fixedly connected with a cross frame, the inner surface of the cross frame is rotatably connected with a threaded sleeve, the outer surface of the threaded sleeve is threadedly connected with a bevel gear ring, the bottom outer surface of the bevel gear ring is rotatably connected with an auxiliary sleeve, the bottom inner surface of the auxiliary sleeve is threadedly connected with the outer surface of the threaded sleeve, the upper end of the auxiliary sleeve is rotatably connected with a lateral bevel gear, the outer surface of the lateral bevel gear is meshed with the outer surface of the bevel gear ring, the other end of the lateral bevel gear is fixedly connected with a turntable, the bottom end of the auxiliary sleeve is fixedly connected with a rack, one end of the rack away from the threaded sleeve is meshed with an auxiliary gear, the middle outer surface of the auxiliary gear is rotatably connected with a linkage arm, the other end of the linkage arm is rotatably connected with a fixed disk, and the outer surface of the fixed disk is fixedly connected with a camera.

[0005] As a preferred embodiment of the above technical solution, the lower part of the auxiliary ring is provided with return spring rods in sequence from top to bottom, and positioning blocks and auxiliary gaskets are fixedly connected between the opposite surfaces of adjacent return spring rods, the positioning blocks and the auxiliary gaskets are staggered, the top end of the upper return spring rod is fixedly connected to the lower end of the auxiliary ring, the inner surface of the positioning block is rotatably connected to a cam, the top outer surface of the upper cam abuts against the bottom end of the auxiliary ring, and the outer surface of the middle cam abuts against one end of the auxiliary gasket close to the cam.

[0006] As a preferred embodiment of the above technical solution, the turntable and the cam are rotatably connected to a limit block at one end away from the threaded sleeve, the top of the bottom limit block is fixedly connected to a guide slide rod, the outer surface of the guide slide rod is slidably connected to the inner surfaces of the remaining limit blocks, the bottom end of the bottom return spring rod is fixedly connected to a mounting bottom ring, and the bottom outer surface of the bottom cam abuts against the top of the mounting bottom ring.

[0007] As a preferred embodiment of the above technical solution, the bottom end of the mounting bottom ring is fixedly connected to a fixing frame, the top inner surface of the fixing frame is rotatably connected to the outer surface of the auxiliary gear, the bottom inner surface of the fixing frame is rotatably connected to the outer surface of the fixed disk, and the outer surface of the fixing frame is rotatably connected to a cleaning frame.

[0008] As a preferred embodiment of the above technical solution, the outer surface of the linkage arm is fixedly connected with a telescopic connecting rod, the other end of the telescopic connecting rod is fixedly connected with an auxiliary block, the lower end of the auxiliary block is fixedly connected with another telescopic connecting rod, the bottom end of the other telescopic connecting rod is fixedly connected with a limiting connecting plate, and the outer surface of the limiting connecting plate is rotatably connected to the inner surface of the cleaning frame.

[0009] As a preferred embodiment of the above technical solution, the top of the bevel gear ring is fixedly connected to a fixing column, the top of the fixing column is fixedly connected to a mounting top plate, the upper outer surface of the mounting top plate is fixedly connected to a first shock absorber, the other end of the first shock absorber is fixedly connected to a Y-shaped frame, the inner surface of the Y-shaped frame is rotatably connected to a limiting roller, and a second shock absorber is fixedly connected between opposite surfaces of the limiting roller.

[0010] As a preferred embodiment of the above technical solution, the top end of the mounting top plate is fixedly connected with a connecting telescopic rod, the top end of the connecting telescopic rod is fixedly connected with the bottom end of the cross frame, the top end of the threaded sleeve is fixedly connected with an upper bevel gear, the upper end of the cross frame is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a driving bevel gear, the outer surface of the driving bevel gear is meshingly connected with the outer surface of the upper bevel gear, the bottom end of the threaded sleeve is fixedly connected with a nozzle, the top end of the threaded sleeve is fixedly connected with a guide tube, and the top end of the guide tube is connected to the top end of the transparent sleeve.

[0011] As a preferred embodiment of the above technical solution, the outer surface of the transparent sleeve is in contact with an arc-shaped clamp and a sliding frame, the inner surfaces of the arc-shaped clamp and the sliding frame are both slidably connected with a guide rod, the inner surfaces of the arc-shaped clamp and the sliding frame are both threadedly connected with a limiting screw, the rear end of the sliding frame is fixedly connected with an electric push rod, the rear end of the electric push rod is fixedly connected with an auxiliary sliding block, the inner surface of the auxiliary sliding block is threadedly connected with a threaded screw, the upper and lower ends of the threaded screw are rotatably connected with a U-shaped frame, the right end of the U-shaped frame is slidably connected with the left end of the sliding frame, the upper end of the U-shaped frame is fixedly connected with an auxiliary motor, the output end of the auxiliary motor is fixedly connected to the top end of the threaded screw, and the left end of the U-shaped frame is fixedly connected with a mounting column.

[0012] A labeling machine based on machine vision includes a labeling quality detection mechanism, wherein the bottom end of the mounting column is fixedly connected to a conveying frame, the bottom end of the conveying frame is fixedly connected to an electric control cabinet, a paging device is arranged on the left part of the conveying frame, the middle part of the upper end of the conveying frame is fixedly connected to a labeling mechanism, and the middle part of the rear end of the conveying frame is fixedly connected to a control panel.

[0013] The beneficial effects of the present invention are:

[0014] Through the threaded transmission of the threaded sleeve and the bevel gear ring, the bevel gear ring can be driven to move up and down when the threaded sleeve rotates, and through the threaded transmission of the auxiliary sleeve and the threaded sleeve and the meshing transmission of the bevel gear ring and the lateral bevel gear, each cam can be driven to rotate, so as to adjust the distance between the auxiliary sleeve and the mounting bottom ring. At the same time, by increasing and decreasing the number of cams, the rotation angle of the camera can be changed, thereby improving the overall applicability and practicality. The angle of the camera can be adjusted through the meshing transmission of the rack and the auxiliary gear and the connecting rod action of the linkage arm, thereby ensuring that the camera can swing sideways while rotating in a circle, thereby improving the camera's completeness in detecting labeling;

[0015] At the same time, when the linkage arm rotates, the connecting rod action of the telescopic connecting rod, the auxiliary block and the limit connecting plate can clean the rotating camera to ensure the overall reliability and stability. At the same time, through the connecting rod action of the first shock absorber, the Y-shaped frame and the second shock absorber, the threaded sleeve can be radially damped and cached when the whole rotates, further improving the overall stability and accuracy, thereby ensuring that there will be no excessive deviation during detection, thereby improving the efficiency and effect of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a stereoscopic diagram of a labeling quality detection mechanism and a labeling machine based on machine vision;

[0017] Figure 2 Shown is a three-dimensional diagram of a labeling quality detection mechanism based on machine vision and a detection mechanism of a labeling machine;

[0018] Figure 3 Shown is a schematic diagram of a labeling quality inspection mechanism based on machine vision and the internal parts of a labeling machine;

[0019] Figure 4 It is shown that Figure 3 A local enlarged schematic diagram of the middle A;

[0020] Figure 5 It is shown that Figure 3 A partial enlarged schematic diagram of point B in the middle;

[0021] Figure 6What is shown is a machine vision-based labeling quality detection mechanism and a schematic diagram of the internal structure of a labeling machine;

[0022] Figure 7 Shown is a schematic diagram of a labeling quality inspection mechanism based on machine vision and some parts of a labeling machine;

[0023] Figure 8 Shown is a schematic diagram of a labeling quality detection mechanism based on machine vision and local parts of a labeling machine.

[0024] In the figure: 1, transparent sleeve; 2, cross frame; 3, threaded sleeve; 4, bevel gear ring; 5, auxiliary sleeve ring; 6, lateral bevel gear; 7, turntable; 8, rack; 9, auxiliary gear; 10, linkage arm; 11, fixed plate; 12, camera; 13, reset spring rod; 14, positioning block; 15, auxiliary gasket; 16, cam; 17, limit block; 18, guide slide; 19, installation bottom ring; 20, fixed frame; 21, cleaning frame; 22, telescopic connecting rod; 23, auxiliary block; 24, limit connecting plate; 25, fixed column; 26, installation top plate; 2 7. First shock absorber; 28. Y-shaped frame; 29. ​​Limit roller; 30. Second shock absorber; 31. Connecting telescopic rod; 32. Upper bevel gear; 33. Driving motor; 34. Driving bevel gear; 35. Sprinkler; 36. Guide pipe; 37. Arc clamp; 38. Sliding frame; 39. Guide rod; 40. Limit screw; 41. Electric push rod; 42. Auxiliary sliding block; 43. Threaded screw; 44. U-shaped frame; 45. Auxiliary motor; 46. Mounting column; 47. Conveying frame; 48. Electric control cabinet; 49. Paging device; 50. Labeling mechanism; 51. Control panel. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0026] Example 1

[0027] The present invention provides a labeling quality detection mechanism and a labeling machine based on machine vision, such as Figures 1 to 8As shown, it includes a transparent sleeve 1, the inner surface of the transparent sleeve 1 is fixedly connected with a cross frame 2, the inner surface of the cross frame 2 is rotatably connected with a threaded sleeve 3, the outer surface of the threaded sleeve 3 is threadedly connected with a bevel gear ring 4, the bottom outer surface of the bevel gear ring 4 is rotatably connected with an auxiliary collar 5, the bottom inner surface of the auxiliary collar 5 is threadedly connected with the outer surface of the threaded sleeve 3, the upper end of the auxiliary collar 5 is rotatably connected with a lateral bevel gear 6, the outer surface of the lateral bevel gear 6 is meshed with the outer surface of the bevel gear ring 4, the other end of the lateral bevel gear 6 is fixedly connected with a turntable 7, the bottom end of the auxiliary collar 5 is fixedly connected with a rack 8, the end of the rack 8 away from the threaded sleeve 3 is meshed with an auxiliary gear 9, and the auxiliary gear The outer surface of the middle part of the auxiliary ring 5 is rotatably connected with a linkage arm 10, and the other end of the linkage arm 10 is rotatably connected with a fixed plate 11, and the outer surface of the fixed plate 11 is fixedly connected with a camera 12. The lower part of the auxiliary ring 5 is provided with reset spring rods 13 in sequence from top to bottom, and the opposite surfaces of adjacent reset spring rods 13 are fixedly connected with positioning blocks 14 and auxiliary gaskets 15. The positioning blocks 14 and the auxiliary gaskets 15 are staggered. The top of the upper reset spring rod 13 is fixedly connected to the lower end of the auxiliary ring 5, and the inner surface of the positioning block 14 is rotatably connected with a cam 16. The top outer surface of the upper cam 16 abuts against the bottom end of the auxiliary ring 5, and the outer surface of the middle cam 16 abuts against one end of the auxiliary gasket 15 close to the cam 16. The rotating disk 7 and the cam 16 are rotatably connected to the limit block 17 at one end away from the threaded sleeve 3. The top of the bottom limit block 17 is fixedly connected with a guide slide bar 18. The outer surface of the guide slide bar 18 is slidably connected with the inner surface of the other limit blocks 17. The bottom end of the bottom return spring rod 13 is fixedly connected with a mounting bottom ring 19. The bottom outer surface of the bottom cam 16 abuts against the top of the mounting bottom ring 19. The bottom end of the mounting bottom ring 19 is fixedly connected with a fixing frame 20. The top inner surface of the fixing frame 20 is rotatably connected with the outer surface of the auxiliary gear 9. The bottom inner surface of the fixing frame 20 is rotatably connected with the outer surface of the fixing disk 11. The outer surface of the fixing frame 20 is rotatably connected with a cleaning frame 21. The threaded transmission with the bevel gear ring 4 can drive the bevel gear ring 4 to move up and down when the threaded sleeve 3 rotates, and the threaded transmission between the auxiliary ring 5 and the threaded sleeve 3 and the meshing transmission between the bevel gear ring 4 and the lateral bevel gear 6 can drive each cam 16 to rotate, thereby adjusting the distance between the auxiliary ring 5 and the mounting bottom ring 19. At the same time, by increasing and decreasing the number of cams 16, the rotation angle of the camera 12 can be changed, thereby improving the overall applicability and practicality. The angle of the camera 12 can be adjusted through the meshing transmission of the rack 8 and the auxiliary gear 9 and the connecting rod action of the linkage arm 10, thereby ensuring that the camera 12 swings sideways while rotating in a circle, thereby improving the completeness of the camera 12 in detecting labeling.

[0028] like Figures 1 to 8As shown, the bottom end of the mounting bottom ring 19 is fixedly connected with a fixing frame 20, the top inner surface of the fixing frame 20 is rotatably connected to the outer surface of the auxiliary gear 9, the bottom inner surface of the fixing frame 20 is rotatably connected to the outer surface of the fixing plate 11, the outer surface of the fixing frame 20 is rotatably connected with a cleaning frame 21, the top of the bevel gear ring 4 is fixedly connected with a fixing column 25, the top of the fixing column 25 is fixedly connected with a mounting top plate 26, the upper outer surface of the mounting top plate 26 is fixedly connected with a first shock absorber 27, the other end of the first shock absorber 27 is fixedly connected with a Y-shaped frame 28, the inner surface of the Y-shaped frame 28 is rotatably connected with a limiting roller 29, and the limiting roller 29 is rotatably connected with the limiting roller 29. A second shock absorber 30 is fixedly connected between the opposite surfaces 9, a connecting telescopic rod 31 is fixedly connected to the top of the mounting top plate 26, the top of the connecting telescopic rod 31 is fixedly connected to the bottom end of the cross frame 2, an upper bevel gear 32 is fixedly connected to the top of the threaded sleeve 3, a driving motor 33 is fixedly connected to the upper end of the cross frame 2, a driving bevel gear 34 is fixedly connected to the output end of the driving motor 33, the outer surface of the driving bevel gear 34 is meshed with the outer surface of the upper bevel gear 32, a nozzle 35 is fixedly connected to the bottom end of the threaded sleeve 3, a guide tube 36 is fixedly connected to the top end of the threaded sleeve 3, and the top end of the guide tube 36 is connected to the top end of the transparent sleeve 1. The outer surface of the sleeve 1 is in contact with an arc-shaped clamp 37 and a sliding frame 38, and the inner surfaces of the arc-shaped clamp 37 and the sliding frame 38 are slidably connected with a guide rod 39, and the inner surfaces of the arc-shaped clamp 37 and the sliding frame 38 are threadedly connected with a limiting screw 40, and the rear end of the sliding frame 38 is fixedly connected with an electric push rod 41, and the rear end of the electric push rod 41 is fixedly connected with an auxiliary sliding block 42, and the inner surface of the auxiliary sliding block 42 is threadedly connected with a threaded screw 43, and the upper and lower ends of the threaded screw 43 are rotatably connected with a U-shaped frame 44, and the right end of the U-shaped frame 44 is slidably connected with the left end of the sliding frame 38, and the upper end of the U-shaped frame 44 is fixedly connected with an auxiliary motor 45. The output end of the motor 45 is fixedly connected to the top of the threaded screw 43, and the left end of the U-shaped frame 44 is fixedly connected to the mounting column 46. At the same time, when the linkage arm 10 rotates, the connecting rod action of the telescopic connecting rod 22, the auxiliary block 23 and the limiting connecting plate 24 can clean the rotating camera 12 to ensure the overall reliability and stability. At the same time, through the connecting rod action of the first shock absorber 27, the Y-shaped frame 28 and the second shock absorber 30, the threaded sleeve 3 can be radially damped and cached when the whole rotates, further improving the overall stability and accuracy, thereby ensuring that there will be no excessive deviation during detection, thereby improving the efficiency and effect of detection.

[0029] A labeling machine based on machine vision, such as Figures 1 to 8As shown, it includes a labeling quality detection mechanism, a conveying frame 47 is fixedly connected to the bottom end of the mounting column 46, an electric control cabinet 48 is fixedly connected to the bottom end of the conveying frame 47, a pager 49 is arranged on the left part of the conveying frame 47, and the pager 49 is used to automatically separate the stacked packaging bags or cards and convey them to the conveying frame 47 in single pages, so as to facilitate rapid labeling and printing, thereby reducing the tediousness of manual paging and improving the efficiency of printing, a labeling mechanism 50 is fixedly connected to the middle part of the upper end of the conveying frame 47, and a control panel 51 is fixedly connected to the middle part of the rear end of the conveying frame 47, so as to facilitate the control of the overall parts.

[0030] Working principle: When in use, start the paging device 49, the paging device 49 pages the labeling parts, and drives the labeling parts to the bottom of the labeling mechanism 50 through the conveying frame 47, and starts the labeling mechanism 50 to label the labeling parts, and starts the conveying frame 47 to drive the labeling parts to the bottom of the transparent sleeve 1, and starts the auxiliary motor 45 and the electric push rod 41, and adjusts the position of the transparent sleeve 1 through the threaded transmission of the threaded screw 43 and the auxiliary sliding block 42 and the limit of the sliding frame 38 and the U-shaped frame 44, and starts the driving motor 33, and drives the upper bevel gear to move the transparent sleeve 1 to the bottom of the transparent sleeve 1. The meshing transmission of the wheel 32 and the driving bevel gear 34 drives the threaded sleeve 3 to rotate. The threaded transmission of the threaded sleeve 3 and the bevel gear ring 4 can drive the bevel gear ring 4 to move up and down when the threaded sleeve 3 rotates, and the threaded transmission of the auxiliary sleeve 5 and the threaded sleeve 3 and the meshing transmission of the bevel gear ring 4 and the lateral bevel gear 6 can drive each cam 16 to rotate, thereby adjusting the distance between the auxiliary sleeve 5 and the mounting bottom ring 19. At the same time, by increasing and decreasing the number of cams 16, the camera 12 can be changed. The rotation angle improves the overall applicability and practicality. The angle of the camera 12 can be adjusted through the meshing transmission of the rack 8 and the auxiliary gear 9 and the connecting rod action of the linkage arm 10, so as to ensure that the camera 12 swings sideways while rotating in a circle, thereby improving the completeness of the camera 12 in detecting the label. At the same time, when the linkage arm 10 rotates, the connecting rod action of the telescopic connecting rod 22, the auxiliary block 23 and the limit connecting plate 24 can clean the rotating camera 12 to ensure the overall reliability and stability. At the same time, through the connecting rod action of the first shock absorber 27, the Y-shaped frame 28 and the second shock absorber 30, the threaded sleeve 3 can be radially damped and cached when the whole rotates, further improving the overall stability and accuracy, thereby ensuring that there will be no excessive deviation during the detection, improving the efficiency and effect of the detection, completing the quality detection of the label, and after the detection is completed, the label is sprayed through the guide pipe 36 and the nozzle 35. After completion, the drive motor 33 is repeatedly started for secondary detection to improve the reliability and accuracy of the detection.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A labeling quality detection mechanism based on machine vision, characterized in that: The invention comprises a transparent sleeve (1), the inner surface of the transparent sleeve (1) is fixedly connected to a cross frame (2), the inner surface of the cross frame (2) is rotatably connected to a threaded sleeve (3), the outer surface of the threaded sleeve (3) is threadedly connected to a bevel gear ring (4), the bottom outer surface of the bevel gear ring (4) is rotatably connected to an auxiliary sleeve (5), the bottom inner surface of the auxiliary sleeve (5) is threadedly connected to the outer surface of the threaded sleeve (3), the upper end of the auxiliary sleeve (5) is rotatably connected to a lateral bevel gear (6), and the lateral bevel gear (6) is rotatably connected to the outer surface of the threaded sleeve (3). The outer surface of the lateral bevel gear (6) is meshingly connected with the outer surface of the bevel gear ring (4), the other end of the lateral bevel gear (6) is fixedly connected with a rotating disk (7), the bottom end of the auxiliary collar (5) is fixedly connected with a rack (8), the end of the rack (8) away from the threaded sleeve (3) is meshingly connected with an auxiliary gear (9), the middle outer surface of the auxiliary gear (9) is rotatably connected with a linkage arm (10), the other end of the linkage arm (10) is rotatably connected with a fixed disk (11), and the outer surface of the fixed disk (11) is fixedly connected with a camera (12); The lower part of the auxiliary collar (5) is provided with return spring rods (13) in sequence from top to bottom, and positioning blocks (14) and auxiliary gaskets (15) are fixedly connected between opposite surfaces of adjacent return spring rods (13), and the positioning blocks (14) and auxiliary gaskets (15) are arranged in a staggered manner. The top end of the return spring rod (13) is fixedly connected to the lower end of the auxiliary collar (5), and the inner surface of the positioning block (14) is rotatably connected to a cam (16). The top outer surface of the cam (16) is in contact with the bottom end of the auxiliary collar (5), and the outer surface of the cam (16) in the middle is in contact with an end of the auxiliary gasket (15) close to the cam (16); The outer surface of the transparent sleeve (1) is in contact with an arc-shaped clamp (37) and a sliding frame (38); the inner surfaces of the arc-shaped clamp (37) and the sliding frame (38) are both slidably connected to a guide rod (39); the inner surfaces of the arc-shaped clamp (37) and the sliding frame (38) are both threadedly connected to a limiting screw (40); the rear end of the sliding frame (38) is fixedly connected to an electric push rod (41); the rear end of the electric push rod (41) is fixedly connected to an auxiliary sliding block (42); The inner surface of the auxiliary sliding block (42) is threadedly connected to a threaded screw rod (43); the upper and lower ends of the threaded screw rod (43) are rotatably connected to a U-shaped frame (44); the right end of the U-shaped frame (44) is slidably connected to the left end of the sliding frame (38); the upper end of the U-shaped frame (44) is fixedly connected to an auxiliary motor (45); the output end of the auxiliary motor (45) is fixedly connected to the top end of the threaded screw rod (43); and the left end of the U-shaped frame (44) is fixedly connected to a mounting column (46).

2. The labeling quality detection mechanism based on machine vision according to claim 1, characterized in that: The rotating disk (7) and the cam (16) are rotatably connected to the limit block (17) at one end away from the threaded sleeve (3); the top of the limit block (17) is fixedly connected to a guide slide bar (18); the outer surface of the guide slide bar (18) is slidably connected to the inner surface of the other limit blocks (17); the bottom end of the return spring rod (13) is fixedly connected to a mounting bottom ring (19); the bottom outer surface of the cam (16) abuts against the top of the mounting bottom ring (19).

3. The machine vision-based labeling quality detection mechanism according to claim 2, characterized in that: The bottom end of the mounting bottom ring (19) is fixedly connected to a fixing frame (20), the top inner surface of the fixing frame (20) is rotatably connected to the outer surface of the auxiliary gear (9), the bottom inner surface of the fixing frame (20) is rotatably connected to the outer surface of the fixing plate (11), and the outer surface of the fixing frame (20) is rotatably connected to a cleaning frame (21).

4. The labeling quality detection mechanism based on machine vision according to claim 1, characterized in that: The outer surface of the linkage arm (10) is fixedly connected to a telescopic connecting rod (22), the other end of the telescopic connecting rod (22) is fixedly connected to an auxiliary block (23), the lower end of the auxiliary block (23) is fixedly connected to another telescopic connecting rod (22), the bottom end of the other telescopic connecting rod (22) is fixedly connected to a limit connecting plate (24), and the outer surface of the limit connecting plate (24) is rotatably connected to the inner surface of the cleaning frame (21).

5. The labeling quality detection mechanism based on machine vision according to claim 1, characterized in that: The top end of the bevel gear ring (4) is fixedly connected to a fixing column (25), the top end of the fixing column (25) is fixedly connected to a mounting top plate (26), the upper outer surface of the mounting top plate (26) is fixedly connected to a first shock absorber (27), the other end of the first shock absorber (27) is fixedly connected to a Y-shaped frame (28), the inner surface of the Y-shaped frame (28) is rotatably connected to a limiting roller (29), and a second shock absorber (30) is fixedly connected between opposite surfaces of the limiting roller (29).

6. The machine vision-based labeling quality detection mechanism according to claim 5, characterized in that: The top end of the mounting top plate (26) is fixedly connected to a connecting telescopic rod (31), the top end of the connecting telescopic rod (31) is fixedly connected to the bottom end of the cross frame (2), the top end of the threaded sleeve (3) is fixedly connected to an upper bevel gear (32), the upper end of the cross frame (2) is fixedly connected to a driving motor (33), the output end of the driving motor (33) is fixedly connected to a driving bevel gear (34), the outer surface of the driving bevel gear (34) is meshingly connected to the outer surface of the upper bevel gear (32), the bottom end of the threaded sleeve (3) is fixedly connected to a nozzle (35), the top end of the threaded sleeve (3) is fixedly connected to a guide tube (36), and the top end of the guide tube (36) is connected to the top end of the transparent sleeve (1).

7. A labeling machine based on machine vision, characterized in that: It comprises a labeling quality detection mechanism as claimed in any one of claims 1 to 6, wherein the bottom end of the mounting column (46) is fixedly connected to a conveying frame (47), the bottom end of the conveying frame (47) is fixedly connected to an electric control cabinet (48), a paging device (49) is arranged on the left side of the conveying frame (47), a labeling mechanism (50) is fixedly connected to the middle part of the upper end of the conveying frame (47), and a control panel (51) is fixedly connected to the middle part of the rear end of the conveying frame (47).

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