High-speed optical imaging detector for bottle body defect detection

Abstract

The utility model belongs to the technical field of glass bottle detection, and particularly relates to a high-speed optical imaging detector for bottle body defect detection. Comprising a main frame, a symmetrical optical shooting device and a conveying mechanism, the conveying mechanism is arranged in the main frame, the symmetrical optical shooting device comprises angle camera assemblies, a front camera assembly and a rear camera assembly, the front camera assembly and the rear camera assembly are arranged on the two sides of the conveying mechanism, and connecting lines of the four angle camera assemblies form a rectangle. The front camera assembly is arranged between the two angle camera assemblies on one side of the conveying mechanism, and the rear camera assembly is arranged between the two angle camera assemblies on the other side of the conveying mechanism. The symmetrical optical shooting device comprises a front camera assembly, a rear camera assembly and four corner camera assemblies, the products on the conveying mechanism are shot at all angles, the defects of bottle bodies of the products are comprehensively inspected, and the inspection quality of the products is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of glass bottle detection, in particular to a high-speed optical imaging detection machine for detecting defects on bottle bodies. Background Art

[0002] The rapid development of China's manufacturing industry has brought opportunities for factory automation. Automated inspection equipment for some key links can not only bring higher efficiency but also minimize costs. The quality of glass bottles and cans is the key to the success or failure of a company's production and operations. With economic growth, various brands of alcoholic beverages, and cosmetics have emerged on the market. Each merchant has different requirements for the glassware used to package their products. As a result, glass bottle suppliers frequently change production, and their customers have more stringent requirements for product quality, especially for medicine bottles and cosmetic bottles. Therefore, quality control of glass bottles has always been a major problem facing the entire production line, and defect detection for glass bottles has become an essential part of the entire production system. Currently, other domestic camera-based side wall inspection machines for bottle inspection have a single lens setting direction and an insufficient shooting range, which cannot fully detect product quality and affects their service life. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a camera-type inspection machine for shooting products at all angles.

[0004] The technical solution adopted by the utility model to solve its technical problems is: the high-speed optical imaging inspection machine for bottle body defect detection includes a main frame, a symmetrical optical shooting device and a conveying mechanism, the conveying mechanism is arranged in the main frame, the symmetrical optical shooting device includes a corner camera assembly, a front camera assembly and a rear camera assembly, the front camera assembly and the rear camera assembly are arranged on both sides of the conveying mechanism, the connecting line of the four corner camera assemblies forms a rectangle, and the corner camera assemblies on the diagonals are arranged opposite to each other, the front camera assembly is arranged between the two corner camera assemblies on one side of the conveying mechanism, and the rear camera assembly is arranged between the two corner camera assemblies on the other side of the conveying mechanism.

[0005] Preferably, the corner camera assembly includes a corner camera and a corner light source, the corner light source is opposite to the corner camera at the diagonal position, and the angle between the connecting line and the horizontal direction is 30°~40°.

[0006] Preferably, the angle between the line connecting the corner light source and the corner camera at the diagonal position and the conveying mechanism is 35°.

[0007] Preferably, the front camera assembly includes a front camera, a front fixing frame and a front light source, the front fixing frame is rotatably set on the main frame, and the front light source and the front camera are set on the front fixing frame; the rear camera assembly includes a rear camera, a rear fixing frame and a rear light source, the rear fixing frame is fixedly set on the main frame, the rear light source and the rear camera are set on the rear fixing frame, and the rear light source is set opposite to the front camera, and the rear camera is set opposite to the front light source.

[0008] Preferably, a locking structure is provided between the front camera assembly and the main frame.

[0009] Preferably, the locking structure includes a knob plunger and a limiting wedge, the knob plunger is arranged on one side of the front camera assembly, the limiting wedge is arranged on the main frame, and the knob plunger is arranged in the limiting wedge.

[0010] Preferably, the corner camera assembly, the front camera assembly and the rear camera assembly are all provided with a plurality of camera lenses that swing up and down.

[0011] Preferably, a folding door is also included, which includes a left door panel, a right door panel and a human-machine interface. The left door panel and the right door panel are rotatably arranged side by side on the main frame, and are arranged opposite to the rear camera assembly and parallel to the front camera assembly. The left door panel and the right door panel are hinged, and the human-machine interface is rotatably arranged on the right door panel.

[0012] Preferably, it also includes an electrical control cabinet and a light source cooling air system, which are arranged on the upper side of the symmetrical optical shooting device from bottom to top. The symmetrical optical shooting device is connected to the light source cooling air system, and the light source cooling air system is connected to the electrical control cabinet.

[0013] Preferably, the light source cooling air system includes a cooling fan, a fixed box and a connecting pipe. The fixed box is arranged on the main frame, the cooling fan is arranged inside the fixed box, and multiple connecting pipes are arranged on the fixed box. The connecting pipes are connected to the symmetrical optical shooting device.

[0014] Compared with the existing technology, the beneficial effects of this technical solution are:

[0015] The utility model sets a symmetrical optical shooting device, including four corner camera assemblies, a front camera assembly and a rear camera assembly. The front camera assembly and the rear camera assembly are arranged on both sides of the conveying mechanism. The connecting line of the four corner camera assemblies forms a rectangle, and the corner camera assemblies on the diagonal corners are arranged relatively. The front camera assembly is arranged between the two corner camera assemblies on one side of the conveying mechanism, and the rear camera assembly is arranged between the two corner camera assemblies on the other side of the conveying mechanism. The products on the conveying mechanism are photographed from various angles, and the defects of the product bottles are comprehensively inspected to ensure the inspection quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1The utility model is a structural schematic diagram of a high-speed optical imaging inspection machine for bottle body defect detection.

[0017] Figure 2 This is a front view of the utility model with the folding door omitted.

[0018] Figure 3 for Figure 2 Side view with side panels omitted.

[0019] Figure 4 for Figure 2 Middle AA section view.

[0020] Figure 5 for Figure 2 Middle BB cross-section view.

[0021] Figure 6 This is a structural diagram of the main frame.

[0022] Figure 7 This is a structural diagram of the electrical cabinet.

[0023] Figure 8 This is the front view of the symmetrical optical shooting device.

[0024] Figure 9 2 is a cross-sectional view of a symmetrical optical camera device.

[0025] Figure 10 This is a cross-sectional view of the corner camera.

[0026] Figure 11 A cross-sectional view of the front camera.

[0027] Figure 12 This is the main view of the corner light source.

[0028] Figure 13 This is a cross-sectional view of an angular light source.

[0029] Figure 14 This is a structural diagram of the light source cooling air system.

[0030] Figure 15 for Figure 14 sectional view of .

[0031] Figure 16 This is the main view of the folding door.

[0032] Figure 17 This is the rear view of the folding door.

[0033] Among them: 1. Main frame 2. Electrical control cabinet 3. Symmetrical optical shooting device 4. Light source cooling air system 5. Conveying mechanism 6. Corner camera 7. Corner light source 8. Front camera 9. Front fixing frame 10. Front light source 11. Rear camera 12. Rear fixing frame 13. Rear light source 14. Knob plunger 15. Limit wedge 16. Camera lens 17. Cooling fan 18. Fixed box 19. Folding door 20. Human-machine interface 21. Bearing seat 22. Connecting plate 23. Upper fixing frame 24. Lower fixing frame 25. Bracket 26. Upper side bracket 27. Lower side bracket 28. Eye screw 29. Air conditioner 30. Air conditioning duct 31. Horizontal support 32. Electrical cabinet threading plate 33. Light source wave Corrugated pipe joint 34, light source bracket fixing block 35, light source column 36, light source bracket connecting plate 37, corner fixing bracket 38, left door panel 39, upper door beam 40, right door panel 41, door axis 42, door handle 43, lower door beam 44, safety sensor block 45, hinge 46, magnetic door suction 47, screen hinge 48, cooling air top cover plate 49, corner threading plate 50, upper cross brace 51, lower cross brace 52, camera column 53, fixing plate 54, front and rear camera assembly 55, light source cover plate 56, light source assembly 57, light source upper bracket 58, light source lower bracket 59, vent 60, pad 61, bellows 62, bottom cover plate 63, cabinet body 64, electrical cabinet cross beam. DETAILED DESCRIPTION

[0034] Figures 1 to 17 This is the best embodiment of the present invention, Figures 1 to 17 The utility model is further described.

[0035] Reference Figures 1 to 5 The high-speed optical imaging inspection machine for bottle body defect detection (hereinafter referred to as the inspection machine) includes a vertically arranged main frame 1, an electrical control cabinet 2, a symmetrical optical shooting device 3, a light source cooling air system 4 and a conveying mechanism 5. The conveying mechanism 5 is arranged in the main frame 1. The symmetrical optical shooting device 3 includes a corner camera assembly, a front camera assembly and a rear camera assembly. The front camera assembly and the rear camera assembly are arranged on both sides of the conveying mechanism 5. The connecting line of the four corner camera assemblies forms a rectangle, and the corner camera assemblies on the diagonals are arranged opposite to each other. The front camera assembly is arranged between the two corner camera assemblies on one side of the conveying mechanism 5, and the rear camera assembly is arranged between the two corner camera assemblies on the other side of the conveying mechanism 5. The symmetrical optical shooting device 3 is connected to the light source cooling air system 4, and the light source cooling air system 4 is connected to the electrical control cabinet 2. The light source cooling air system 4 and the electrical control cabinet 2 are arranged on the upper side of the symmetrical optical shooting device 3 from bottom to top.

[0036] Reference Figure 6The main frame 1 includes two frames and a fixed beam. The two frames are arranged opposite to each other, and the fixed beam is arranged between the two frames. The frame consists of two columns, upper and lower frame beams and a connecting beam on the lower side of the frame beams. At the upper part of the main frame 1, the two fixed beams and the two frame beams form a rectangular upper fixed frame 23. At the lower part of the main frame 1, the two fixed beams and the two frame beams form a rectangular lower fixed frame 24. Triangular brackets 25 are set at the four corners of the upper fixed frame 23 and the lower fixed frame 24. The sides of the brackets 25 are bent upward. Side upper brackets 26 are connected between adjacent brackets 25 of the upper fixed frame 23, and side lower brackets 27 are connected between adjacent brackets 25 of the lower fixed frame 24. The sides of the side upper brackets 26 are bent upward, and the sides of the side lower brackets 27 are bent downward, in order to facilitate the fixation of the symmetrical optical shooting device 3.

[0037] Reference Figure 7 The electrical control cabinet 2 includes a cabinet body 63, a cross support 31, and an electrical cabinet cross beam 64. The electrical cabinet cross beam 64 and the cross support 31 are fixed by bolts to form a rectangular frame, and then fixed to the top of the column in the main frame 1 by eye screws 28. The upper part of the cabinet body 63 is fixed to the electrical cabinet cross beam 64, and the lower part of the cabinet body 63 is fixed to the upper fixed frame 23 of the main frame 1. The air conditioning duct 30 is fixed to the rear of the cabinet body 63, and the air conditioner 29 is tightly installed with the air conditioning duct 30. Two upper and lower chambers are formed inside the cabinet body 63. The upper and lower air ducts are connected to the upper and lower chambers inside the cabinet body 63 respectively, so that cold air enters the cabinet body 63 from the lower part of the component board, and hot air is extracted from the top of the component board, forming a good circulation and good cooling efficiency. At the same time, the lower part of the cabinet body 63 is provided with an electrical cabinet threading plate 32 to prevent air leakage in the wiring hole, so that the sealing performance of the electrical control cabinet 2 is good.

[0038] Reference Figures 8 and 9 The corner cameras 6 are fixedly installed at the four corners of the main frame 1, and their center lines form a fixed special angle of 35° with the center line of the conveyor line. The front camera 8 and the rear camera 11 are directly fixed between the upper fixed frame 23 and the lower fixed frame 24 of the main frame 1 through their respective fixing frames. The front light source 10 and the rear light source 13 are respectively fixed to the front fixed frame 9 and the rear fixed frame 12 through the upper light source bracket 57 and the lower light source bracket 58. The center line of the front light source 10 coincides with the central axis of the camera of the rear camera 11, and the center line of the rear light source 13 coincides with the central axis of the camera of the front camera 8.

[0039] The light source column 35, the pad 60 and the light source bracket connecting plate 36 are connected to form the light source brackets at the four corners, which are fixed to the bracket 25, the upper side bracket 26 and the lower side bracket 27 in the main frame 1 by screws. The corner light sources 7 are installed and fixed on the light source brackets at the four corners. The center lines of the corner light sources 7 at the four corners coincide with the camera central axes of the corner cameras 6 at the four corners. Therefore, the cameras and light sources in the six directions are in special positions and have special angles. They are symmetrical in pairs and their central axes overlap, forming a hexagonal symmetrical optical device.

[0040] Specifically, the light source bracket includes two light source columns 35, the upper and lower ends of the light source columns 35 are connected to the main frame 1 through the light source bracket fixing block 34, the lower sides of the two light source columns 35 are connected by a horizontally arranged light source bracket connecting plate 36, and the upper sides are connected by a pad 60. A conveyor line is formed between the four groups of light source brackets, and the symmetrical optical shooting devices 3 are symmetrically arranged on both sides of the conveyor line. The optical shooting device on each side includes two corner camera assemblies and a front camera assembly or a rear camera assembly.

[0041] The corner camera assembly includes corner cameras 6 and corner light sources 7. The front camera assembly includes front camera 8, front light source 10, and front mounting bracket 9. The rear camera assembly includes rear camera 11, rear light source 13, and rear mounting bracket 12. Each side optical imaging device includes two corner cameras 6, two corner light sources 7, and one front camera 8, front light source 10, front mounting bracket 9, or rear mounting bracket 12. The corner light sources 7 are vertically mounted on a light source bracket, and the corner cameras 6 are positioned between the corner light sources 7 and the front camera assembly or the rear camera assembly.

[0042] Reference Figure 10 The corner camera 6 is vertically arranged on the corner fixing frame 37 and is provided with three camera lenses 16. The upper end of the corner fixing frame 37 is provided with a corner threading plate 49. The upper and lower ends of the corner fixing frame 37 are fixedly connected to the main frame 1 by bolts.

[0043] Reference Figure 11 The vertically arranged front camera 8 is connected to the main frame 1, including a horizontally arranged upper cross brace 50, a lower cross brace 51 and a camera column 52 vertically arranged between the upper cross brace 50 and the lower cross brace 51, forming a C-shaped camera frame. The upper cross brace 50 and the lower cross brace 51 are connected to the camera column 52 through a connecting plate 22. The upper and lower ends of the camera column 52 are respectively connected to bearings, and the bearings are connected to the long sides of the upper fixed frame 23 and the lower fixed frame 24 of the main frame 1 through the bearing seat 21. The front fixed frame 9 can rotate along the camera column 52 as the axis. Knob plungers 14 are provided at the upper and lower ends of the opposite sides of the camera column 52. The knob plunger 14 is connected to the upper cross brace 50 and the lower cross brace 51 through the fixing plate 53. Limit wedges 15 are provided at the positions corresponding to the long sides of the upper fixed frame 23 and the lower fixed frame 24 of the main frame 1. In the locked state, the knob plunger 14 is inserted into the limit wedge 15. When the knob plunger 14 is rotated and pulled, it can be disengaged from the limit wedge 15, so that the C-type camera frame can be rotated outward around the bearing seat 21. The front and rear camera assemblies 54 are fixed on the upper cross brace 50 and the lower cross brace 51 of the C-type camera frame, and can be opened outward together with the camera frame to facilitate maintenance and debugging.

[0044] Each camera assembly contains three bottle-shaped camera lenses 16, which can be freely adjusted in height and pitch. The large spacing between each camera group allows for wide shooting angles. All wiring in the camera assembly uses a threading plate to prevent air leaks through the threading holes. The camera lenses form a sealed space, preventing dust from entering and preventing damage to the camera lenses 16 during operation. The rear mounting bracket 12 is bolted directly to the long sides of the upper and lower mounting frames 23 and 24, corresponding to the front mounting bracket 9.

[0045] Reference Figures 12-13 The corner light source 7 includes a light source assembly 56, an upper light source bracket 57, a lower light source bracket 58, and a light source cover 55. The light source assembly 56 is disposed between the upper light source bracket 57 and the lower light source bracket 58. The light source cover 55 covers the open side of the upper light source bracket 57. The light source cover 55 and the upper light source bracket 57 form a chamber with an open bottom. The lamp board is fixed to the inner side of the light source assembly 56. The light source bellows connector 33 is installed on the upper side of the upper light source bracket 57, forming the entire light source assembly. Two ventilation openings 59 are provided on both the upper and lower sides of the light source assembly 56. The two upper ventilation openings 59 face the chamber formed by the light source cover 55 and the upper light source bracket 57. The cooling fan 17 draws the hot air in the light source assembly 56 through the two upper ventilation openings 59, passes through the chamber formed by the light source cover 55 and the upper light source bracket 57, and then is drawn away through the light source bellows connector 33. Natural wind enters the light source assembly 56 through the two lower ventilation openings 59 to cool the lamp board.

[0046] Reference Figures 14 and 15 The fixed box 18 of the light source cooling air system 4 is fixed to the welding studs of the cooling air top cover plate 48, and a sealing gasket is installed between the two. The bottom cover plate 62 blocks the bottom of the fixed box 18 to form a sealed chamber. Four cooling fans 17 are installed above the chamber. Bellows joints and bellows 61 are installed on the six surfaces of the chamber, corresponding to the corner light sources 7 and the rear light source 13 at the four corners below, as well as the front light source 10. The cooling fan 17 is rotated to extract hot air from the bottom of the six light sources through the bellows 61. The cold air takes away the heat through the light panel and is discharged from the top of the machine, thereby cooling the light source.

[0047] Reference Figures 16 and 17The folding door 19 includes an upper door beam 39 and a lower door beam 43, which are respectively fixed to the upper and lower fixed frames 23 and 24 of the main frame 1. A left door panel 38 and a right door panel 40 are arranged side by side between the upper and lower door beams 39, 43. Door hinges 41 are provided at the ends of the upper and lower door beams 39, 43, and the right door panel 40 is hingedly connected to the upper and lower door beams 39, 43 via corresponding door hinges 41. Magnetic door catches 46 corresponding to the left and right door panels 38, 40 are also provided on the inner sides of the upper and lower door beams 39, 43. A safety sensor block 44 is also fixed to the upper door beam 39.

[0048] The left door panel 38 and the right door panel 40 are hingedly connected at their joints by a plurality of hinges 45 arranged from top to bottom. A door handle 42 is provided on the side of the left door panel 38, which can drive the right door panel 40 to open and close, and fold the left door panel 38 and the right door panel 40 between them.

[0049] The above-mentioned human-machine interface 20 is hinged to the right door panel 40 through the screen hinge 47 at its top. When the left door panel 38 and the right door panel 40 are opened and folded, the human-machine interface 20 can be rotated through the screen hinge 47 to achieve multi-angle display and control.

[0050] Working process and working principle:

[0051] The conveyor mechanism 5 is located in the center of the inspection machine. Six light sources and cameras are positioned symmetrically about the centerline of the conveyor mechanism 5. When sensors on the conveyor mechanism 5 detect a bottle entering the machine from the conveyor mechanism 5, a computer program controls the six cameras and light sources to flash and take photos in sequence. The bottle is photographed twice at the same position, generating a 6-dimensional stress image and a normal image. These images are uploaded to the computer and processed through advanced algorithms to identify various defects on the bottle and support precise measurement of bottle height. The symmetrical optical camera 3 structure ensures that each camera faces the light source directly when taking pictures. The light source and camera components in the symmetrical optical camera 3 are positioned at specific angles and distances, ensuring shadow-free images and enabling the highest level of inspection, including dimensional accuracy. The internal camera lens 16 consists of three layers, with six positions, totaling 18 lenses. Each camera assembly includes a high-position camera, a low-position camera, and a center stress camera. The high and low-position cameras have wide tilt angles during photography, ensuring complete coverage of all positions on the bottle, maximizing the inspectable area. Defective bottles are then identified by the computer and ultimately rejected at the machine's exit.

[0052] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation thereto. Any person skilled in the art may utilize the above disclosure to modify or remodel the present invention into equivalent embodiments. However, any simple modification, equivalent variation, or modification of the above embodiment that does not depart from the technical content of the present invention and is based on the technical essence of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. A high-speed optical imaging inspection machine for bottle defect detection, characterized by: The invention comprises a main frame (1), a symmetrical optical shooting device (3) and a conveying mechanism (5), wherein the conveying mechanism (5) is arranged in the main frame (1), the symmetrical optical shooting device (3) comprises a corner camera assembly, a front camera assembly and a rear camera assembly, the front camera assembly and the rear camera assembly are arranged on both sides of the conveying mechanism (5), the connecting line of the four corner camera assemblies forms a rectangle, and the corner camera assemblies on the diagonals are arranged opposite to each other, the front camera assembly is arranged between the two corner camera assemblies on one side of the conveying mechanism (5), and the rear camera assembly is arranged between the two corner camera assemblies on the other side of the conveying mechanism (5).

2. The high-speed optical imaging inspection machine for bottle defect detection according to claim 1, characterized in that: The corner camera assembly comprises a corner camera (6) and a corner light source (7), wherein the corner light source (7) is opposite to the corner camera (6) at the opposite corner, and the angle between the connecting line and the conveying mechanism (5) is 30° to 40°.

3. The high-speed optical imaging inspection machine for bottle defect detection according to claim 2, characterized in that: The angle between the line connecting the corner light source (7) and the corner camera (6) at the opposite corner and the conveying mechanism (5) is 35°.

4. The high-speed optical imaging inspection machine for bottle defect detection according to claim 1, characterized in that: The front camera assembly comprises a front camera (8), a front fixing frame (9) and a front light source (10), wherein the front fixing frame (9) is rotatably mounted on the main frame (1), and the front light source (10) and the front camera (8) are mounted on the front fixing frame (9); The rear camera assembly comprises a rear camera (11), a rear fixing frame (12) and a rear light source (13), wherein the rear fixing frame (12) is fixedly arranged on the main frame (1), the rear light source (13) and the rear camera (11) are arranged on the rear fixing frame (12), and the rear light source (13) is arranged opposite to the front camera (8), and the rear camera (11) is arranged opposite to the front light source (10).

5. The high-speed optical imaging inspection machine for bottle defect detection according to claim 1, characterized in that: A locking structure is provided between the front camera assembly and the main frame (1).

6. The high-speed optical imaging inspection machine for bottle defect detection according to claim 5, characterized in that: The locking structure comprises a knob plunger (14) and a limiting wedge (15), wherein the knob plunger (14) is arranged on one side of the front camera assembly, the limiting wedge (15) is arranged on the main frame (1), and the knob plunger (14) is arranged in the limiting wedge (15).

7. The high-speed optical imaging inspection machine for bottle defect detection according to claim 1, characterized in that: The corner camera assembly, the front camera assembly and the rear camera assembly are all provided with a plurality of camera lenses (16) that swing up and down.

8. The high-speed optical imaging inspection machine for bottle defect detection according to claim 1, characterized in that: The invention also includes a folding door (19), which includes a left door panel (38), a right door panel (40) and a human-machine interface (20). The left door panel (38) and the right door panel (40) are rotatably arranged side by side on the main frame (1), and are arranged opposite to the rear camera assembly and parallel to the front camera assembly. The left door panel (38) is hinged to the right door panel (40), and the human-machine interface (20) is rotatably arranged on the right door panel (40).

9. The high-speed optical imaging inspection machine for bottle defect detection according to claim 1, characterized in that: It also includes an electrical control cabinet (2) and a light source cooling air system (4), wherein the light source cooling air system (4) and the electrical control cabinet (2) are sequentially arranged on the upper side of the symmetrical optical shooting device (3) from bottom to top, the symmetrical optical shooting device (3) is connected to the light source cooling air system (4), and the light source cooling air system (4) is connected to the electrical control cabinet (2).

10. The high-speed optical imaging inspection machine for bottle defect detection according to claim 9, characterized in that: The light source cooling air system (4) includes a cooling fan (17), a fixed box (18) and a connecting pipe. The fixed box (18) is arranged on the main frame (1), the cooling fan (17) is arranged inside the fixed box (18), and a plurality of connecting pipes are arranged on the fixed box (18). The connecting pipes are connected to the symmetrical optical shooting device (3).

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