Semi-automatic machine vision detection equipment for quality defects of middle cigarette finished product cigarette packets

Abstract

The utility model discloses semi-automatic machine vision detection equipment for quality defects of finished cigarette packets of middle cigarettes, which comprises a base, a support plate fixedly connected to the upper part of the base, a to-be-detected cigarette packet bin arranged at the upper part of the support plate, a pushing lead screw arranged at the to-be-detected cigarette packet bin, and a moving mechanism I arranged at the upper part of the base, the first moving mechanism is located in front of one end of the to-be-detected cigarette packet bin and connected with an electric suction cup module, the three visual inspection stations are located in front of, on the side of and below the electric suction cup module respectively, a conveying belt is arranged at the third visual inspection station and connected with the base, and the base is connected with the first moving mechanism. According to the machine, in the process that a single cigarette packet is conveyed in the machine, six cigarette packets are subjected to visual imaging in sequence at three visual detection stations, the detected cigarette packets are divided into good products and defective products, and the good products and the defective products are output and arrayed to designated areas of the machine in a classified mode.

Description

Technical Field

[0001] The utility model relates to the cigarette production industry, in particular to a semi-automatic machine vision detection device for quality defects of finished medium-sized cigarette packs. Background Art

[0002] During the production process, existing cigarette factories rely on manual offline spot checks to detect quality defects in finished cigarette packs. This labor-intensive process relies entirely on visual inspection, making it difficult to maintain and standardize quality standards. Furthermore, manual spot checks are labor-intensive and prone to eye fatigue, which can lead to artifactually inaccurate test results. Some manufacturers have automated inspection machines, but these are large, complex, and expensive, resulting in low efficiency. Utility Model Content

[0003] The utility model aims to provide a semi-automatic machine vision inspection device for quality defects of finished medium-sized cigarette packs, which has the advantages of reducing labor costs and labor intensity and improving inspection effects.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] The cam is provided with a first platform on the front of the mounting shell, the first platform is provided with an opening, the mounting shell is located below the first platform and a second platform is provided below the second platform, and a sliding groove is provided inside the mounting shell. A moving mechanism and a detection mechanism are provided inside the mounting shell, and the mounting shell includes a support plate, the support plate is located below the first platform, a support column is fixedly connected between the support plate and the base, a cigarette pack bin to be inspected is provided on the upper part of the support plate, the cigarette pack bin to be inspected is located below the opening of the platform, the support plate is rotatably connected to a lead screw 1 under the cigarette pack bin to be inspected, a lead screw slider is fixedly connected to a push plate 1, a proximity sensor is fixedly connected to the side of the cigarette pack bin to be inspected, a moving mechanism 1 is provided on the upper part of the base, the moving mechanism 1 is located in front of one end of the cigarette pack bin to be inspected, and the moving mechanism 1 Mechanism 1 is connected to the electric suction cup module and also includes three visual inspection stations, which are respectively the first visual inspection station, the second visual inspection station and the third visual inspection station. The visual inspection station is provided with a visual camera and a coaxial light source. The visual camera and the coaxial light source of the first visual inspection station are located on the side of the cigarette pack bin to be inspected and in front of the electric suction cup module. The second visual inspection station is located on the side of the electric suction cup module. The visual cameras and coaxial light sources of the first and second visual inspection stations are fixedly connected to the base through their respective support rods. The third visual inspection station is located below the electric suction cup module. A unloading channel is provided between the third visual inspection station and the second visual inspection station. A conveying mechanism is provided between the unloading channel and the third visual inspection station. The conveying mechanism is connected to the base. It also includes a mobile sorting mechanism. The mobile sorting mechanism is located below the second platform and connected to the base.

[0006] Using this technical solution, an operator places cigarette packs into the inspection bin in a row through the opening of the first platform. The lead screw rotates its slider, pushing the entire row of cigarette packs toward the motorized suction cup module. When the proximity sensor detects that the cigarette pack has moved to the appropriate position, the motorized suction cup module activates and grabs the cigarette pack at the top. The moving mechanism then drives the motorized suction cup module and the grabbed cigarette pack to the first and second visual inspection stations. The visual cameras and coaxial light sources at the first and second visual inspection stations are activated sequentially to capture the designated surfaces of the cigarette packs. The motorized suction cup module intermittently rotates 90 degrees at the inspection station for a total of four rotations, sequentially aligning the four sides of the cigarette pack with the visual cameras for visual imaging inspection of different surfaces. After the imaging of the first and second visual inspection stations is completed, the electric suction cup module releases the sucked cigarette pack, and the cigarette pack falls into the unloading channel under the action of gravity, and comes to the third visual inspection station. The third visual inspection station performs visual imaging of the remaining side of the cigarette pack (the side sucked by the electric suction cup module). After the third visual station completes imaging, the conveying mechanism conveys the cigarette pack to the chute on the second platform. According to the results of the judgment of the three visual inspection stations, if it is a good product, the mobile classification mechanism will push it to one side of the chute. Similarly, if it is a defective product, it will be pushed to the other side of the chute.

[0007] Preferably, the conveying mechanism includes a conveyor belt connected to the base, an L-shaped push plate is fixedly connected above the conveyor belt, and the L-shaped push plate extends into the discharge channel.

[0008] With the above technical solution, the conveyor belt rotates, and the L-shaped push plate moves with the conveyor belt to push the cigarette packs in the unloading channel to the chute on the second platform.

[0009] Preferably, the moving mechanism includes a support frame, a second lead screw, a connecting rod and a groove-shaped base. The support frame is located in front of one end of the cigarette pack bin to be inspected, and the support frame is fixedly connected to the upper part of the base. The second lead screw is horizontally rotatably connected above the support frame. The second lead screw slider is fixedly connected to a shift block, and the shift block is rotatably connected to a rotor. There are two connecting rods, which are located in front of the cigarette pack bin to be inspected. The end of the connecting rod is hinged to the upper part of the support plate, and the groove-shaped base is hinged to the other end of the two connecting rods. The rotor of the shift block is embedded in the slide groove of the groove-shaped base and is slidably connected to it. The electric suction cup module is fixedly connected to the groove-shaped base.

[0010] By adopting the above technical solution, the second screw rotates, and its slider drives the lever to move horizontally. The rotor of the lever generates a force on the inner wall of the groove of the groove base, driving the groove base to move. The moving groove base rotates under the action of the two connecting rods, thereby driving the electric suction cup module to rotate.

[0011] Preferably, the mobile classification mechanism includes a screw seat, which is located below the second platform and fixedly connected to the base. The screw seat is rotatably connected to screw three, and the screw three slider is fixedly connected to a mounting plate. The mounting plate is provided with a through groove, in which a push block is embedded, and the push block is provided with a card slot. The push block is vertically slidably connected to the mounting plate, and the push block passes through the slide groove of the second platform. An electromagnet is fixedly connected below the mounting plate.

[0012] Using the above technical solution, the L-shaped push plate pushes the cigarette pack into the slot of the push block. Based on the visual inspection system's judgment, lead screw three rotates. If the inspection result is a good product, the push block moves a certain distance along the slide slot, pushing the cigarette pack to the side area of ​​the second platform. Lead screw three stops rotating, and the electromagnet under the push block activates, causing the push block to descend a certain distance. After the push block descends to the bottom of the detached cigarette pack, lead screw three reverses, driving the push block back to the standby position. The electromagnet also resets, driving the push block back to its initial standby position. If the inspection result is a defective product, lead screw three reverses, pushing the cigarette pack to the defective product area on the other side of the second platform. The process is the same as that for pushing good products, thus separating good products from defective ones.

[0013] Preferably, proximity sensors are respectively provided on both sides of the second platform, and an alarm light is fixedly connected to the outside of the mounting shell.

[0014] With the above technical solution, when the number of cigarette packs outputted is close to the sensor, the system sends a feedback signal and alarms to remind the staff to remove the cigarette packs that have been tested to make room for subsequent cigarette pack output.

[0015] Preferably, a quick maintenance door is provided on the front of the installation shell.

[0016] By adopting the above technical solution, minor faults can be maintained by opening the quick maintenance door.

[0017] Preferably, the rapid maintenance door is provided with a magnetic induction switch.

[0018] By adopting the above technical solution, the system mechanism inside the installation shell automatically stops running after the door is opened.

[0019] In summary, the present invention does not require manual intervention after the cigarette packs are placed in the machine. The machine automatically operates and automatically transports the placed cigarette packs to different inspection stations inside the machine for visual imaging inspection. After the inspection, the cigarette packs are automatically transported in neat rows to designated locations outside the machine, and the inspected cigarette packs are neatly arranged in different areas for good and bad products. The six sides of the cigarette pack can be inspected in all directions without blind spots, and many types of quality defects can be detected. The type and severity of quality defects are automatically determined by machine vision combined with deep learning software. The inspection standards are unified, and the inspection results are accurate, reliable and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall schematic diagram of an embodiment;

[0021] Figure 2 Schematic diagram of the overall structure of the embodiment;

[0022] Figure 3 is a schematic diagram of another perspective inside the embodiment;

[0023] Figure 4 It is a schematic diagram of the positions of the conveying mechanism and the mobile sorting mechanism;

[0024] Figure 5 It is a structural diagram of the conveyor belt;

[0025] Figure 6 It is a structural diagram of the conveyor belt from another perspective;

[0026] Figure 7 It is a structural diagram of a mobile classification mechanism;

[0027] Figure 8 Schematic diagram of the structure of the moving mechanism.

[0028] Figure numerals: 1. base; 2. mounting shell; 3. first platform; 4. second platform; 5. support plate; 6. cigarette pack bin to be inspected; 7. lead screw 1; 8. push plate 1; 9. electric suction cup module; 10. first visual inspection station; 11. second visual inspection station; 12. third visual inspection station; 13. conveyor belt; 14. L-shaped push plate; 15. lead screw 2; 16. connecting rod; 17. slotted base; 18. shift block; 19. lead screw 3; 20. mounting plate; 21. push block; 22. electromagnet; 23. proximity sensor; 24. alarm light; 25. quick maintenance door. DETAILED DESCRIPTION

[0029] The following description is merely a preferred embodiment of the present invention, and the scope of protection is not limited to this embodiment. All technical solutions based on the principles of the present invention should be included in the scope of protection of the present invention. It should also be noted that improvements and modifications that do not depart from the principles of the present invention by ordinary skill in the art should also be considered within the scope of protection of the present invention.

[0030] See Figure 1 、 Figure 2 、 Figure 3 and Figure 8, a semi-automatic machine vision inspection device for quality defects of finished medium-sized cigarette packs, including a base 1, a mounting shell 2 is fixedly connected to the upper part of the base 1, a first platform 3 is provided on the front of the mounting shell 2, the first platform 3 is provided with an opening, the mounting shell 2 is provided with a second platform 4 below the first platform 3, the second platform 4 is provided with a slide groove, a moving mechanism and a detection mechanism are provided inside the mounting shell 2, the mounting shell 2 includes a support plate 5 inside, the support plate 5 is located below the first platform 3, a support column is fixedly connected between the support plate 5 and the base 1, a cigarette pack bin 6 to be inspected is provided on the upper part of the support plate 5, the cigarette pack bin 6 to be inspected is located below the opening of the platform, and the support plate 5 is located in the cigarette pack bin to be inspected 6 is rotatably connected to a lead screw 7 at the bottom, and a slider of the lead screw 7 is fixedly connected to a push plate 8. A proximity sensor 23 is fixedly connected to the side of the cigarette package bin 6 to be inspected. A support frame is fixedly connected to the upper part of the base 1, and the support frame is located in front of one end of the cigarette package bin 6 to be inspected. A horizontal lead screw 2 15 is rotatably connected to the top of the support frame. Two connecting rods 16 are hinged in front of the cigarette package bin 6 to be inspected of the support plate 5. The ends of the two connecting rods 16 are hinged on the same groove-shaped base 17. An electric suction cup module 9 is fixedly connected to the groove-shaped base 17. The slider of the lead screw 2 15 is fixedly connected to a shift block 18. The shift block 18 is rotatably connected to a rotor. The rotor is embedded in the slide groove of the groove-shaped base 17 and is slidably connected to it.

[0031] See Figures 2 to 7 , three visual inspection stations are arranged on the upper part of the base 1, which are the first visual inspection station 10, the second visual inspection station 11 and the third visual inspection station 12. The visual inspection stations are provided with visual cameras and coaxial light sources. The visual camera and coaxial light source of the first visual inspection station 10 are located on the side of the cigarette pack bin 6 to be inspected and in front of the electric suction cup module 9. The second visual inspection station 11 is located on the side of the electric suction cup module 9. The visual cameras and coaxial light sources of the first and second visual inspection stations (10, 11) are fixedly connected to the base 1 through support rods respectively. The third visual inspection station 12 is located below the electric suction cup module 9. There is a A feeding channel is provided, which is fixedly connected to the base 1. A conveyor belt 13 is provided between the feeding channel and the third visual inspection station 12. The conveyor belt 13 is connected to the base 1. An L-shaped push plate 14 is fixedly connected above the conveyor belt 13. The L-shaped push plate 14 extends into the feeding channel and also includes a screw seat. The screw seat is located below the second platform 4 and is fixedly connected to the base 1. The screw seat is rotatably connected to a screw three 19. The slider of the screw three 19 is fixedly connected to the mounting plate 20. The mounting plate 20 is provided with a through groove, in which a push block 21 is embedded. The push block 21 is provided with a card slot. The push block 21 is vertically slidably connected to the mounting plate 20. The push block 21 passes through the slide groove of the second platform 4. An electromagnet 22 is fixedly connected below the mounting plate 20.

[0032] Working Principle: The operator places cigarette packs in a row through the opening of the first platform 3 into the inspection pack bin 6. Screw 7 rotates its slider, pushing the entire pack toward the motorized suction cup module 9. When the proximity sensor 23 detects that the pack has moved to the appropriate position, the motorized suction cup module 9 activates, grabbing the pack at the top. As the pack is transferred to the first visual inspection station 10 via the motorized suction cup and connecting rod 16, the visual camera and corresponding coaxial light source at the first visual inspection station 10 activate according to a pre-set program, capturing a visual image of a large surface of the pack opposite the motorized suction cup. Next, the visual camera and corresponding coaxial light source at the second visual inspection station 11 activate according to a pre-set program, capturing a visual image of the first side of the pack. The motorized suction cup module 9 then rotates the pack, bringing the adjacent side directly into view with the visual camera and coaxial light source 53. The camera then captures the second side. This rotation repeats three times, completing the visual image of all four sides of the pack. Finally, the electric suction cup module 9 rotates again to return the cigarette pack to its initial position. The electric suction cup releases the cigarette pack, and the cigarette pack falls into the third visual inspection station 12 below along the unloading channel with a guide slope set directly below it. The visual camera and the corresponding coaxial light source of the third visual inspection station 12 are started to perform visual imaging of the remaining large surface of the cigarette pack (suction cup side).

[0033] After completion, the conveyor belt 13 rotates, and the L-shaped push plate 14 on the conveyor belt 13 pushes the cigarette package into the slot of the push block 21 as the conveyor belt 13 moves. According to the result of the visual inspection system, if the inspection result is a good product, the screw three 19 rotates, and the push block 21 moves a distance along the slide groove to push the cigarette package to the side area of ​​the second platform 4. The screw three 19 stops rotating, and the electromagnet 22 under the push block 21 is started, causing the push block 21 to drop a distance. After the push block 21 drops to the bottom surface of the detached cigarette package, the screw three 19 reverses, driving the push block 21 back to the standby position, and the electromagnet 22 is reset at the same time to drive the push block 21 back to the initial position and standby. If the test result is a defective product, similarly, the screw three 19 is reversed to push the cigarette pack toward the defective product area on the other side of the second platform 4. The process is the same as the process of pushing good products, thereby separating good products from defective products. When the number of output cigarette packs is close to the sensor of the second platform 4, the system sends a feedback signal, and the alarm reminds the staff to take away the cigarette packs that have completed the test to make room for the subsequent cigarette pack output.

Claims

1. A semi-automatic machine vision inspection device for quality defects of finished medium-sized cigarette packs, characterized by: The invention comprises a base (1), wherein the upper part of the base (1) is fixedly connected to a mounting shell (2), a first platform (3) is provided above the front of the mounting shell (2), the first platform (3) is provided with an opening, the mounting shell (2) is provided with a second platform (4) below the first platform (3), the second platform (4) is provided with a slide groove, a moving mechanism and a detection mechanism are provided inside the mounting shell (2), the mounting shell (2) includes a support plate (5) inside, the support plate (5) is located below the first platform (3), and the support plate (5) is connected to the base (1) ) are fixedly connected between the support column, the upper part of the support plate (5) is provided with a cigarette pack bin (6) to be inspected, the cigarette pack bin (6) to be inspected is located below the opening of the platform, the support plate (5) is rotatably connected to a lead screw (7) below the cigarette pack bin (6) to be inspected, the lead screw (7) slider is fixedly connected to a push plate (8), the side of the cigarette pack bin (6) to be inspected is fixedly connected to a proximity sensor (23), the upper part of the base (1) is provided with a moving mechanism, the moving mechanism is located in front of one end of the cigarette pack bin (6) to be inspected, and the moving mechanism is connected to an electric The dynamic suction cup module (9) also includes three visual inspection stations, which are respectively a first visual inspection station (10), a second visual inspection station (11) and a third visual inspection station (12). The visual inspection stations are provided with visual cameras and coaxial light sources. The visual camera and coaxial light source of the first visual inspection station (10) are located on the side of the cigarette pack bin (6) to be inspected and in front of the electric suction cup module (9). The second visual inspection station (11) is located on the side of the electric suction cup module (9). The first visual inspection station (10) and the second visual inspection station (11) are located on the side of the electric suction cup module (9). The visual camera and the coaxial light source of the second visual inspection station (11) are fixedly connected to the base (1) through their respective support rods. The third visual inspection station (12) is located below the electric suction cup module (9). A material discharge channel is provided between the third visual inspection station (12) and the second visual inspection station (11). A conveying mechanism is provided between the material discharge channel and the third visual inspection station (12). The conveying mechanism is connected to the base (1) and also includes a mobile classification mechanism. The mobile classification mechanism is located below the second platform (4) and connected to the base (1).

2. The semi-automatic machine vision inspection equipment for quality defects of finished medium-sized cigarette packs according to claim 1 is characterized in that: The conveying mechanism comprises a conveyor belt (13), the conveyor belt (13) is connected to the base (1), an L-shaped push plate (14) is fixedly connected above the conveyor belt (13), and the L-shaped push plate (14) extends into the material discharge channel.

3. The semi-automatic machine vision inspection equipment for quality defects of finished medium-sized cigarette packs according to claim 1 is characterized in that: The moving mechanism includes a support frame, a second lead screw (15), a connecting rod (16) and a groove-shaped base (17). The support frame is located in front of one end of the cigarette pack bin (6) to be inspected, and the support frame is fixedly connected to the upper part of the base (1). The second lead screw (15) is horizontally rotatably connected above the support frame. The slider of the second lead screw (15) is fixedly connected to a shift block (18), and the shift block (18) is rotatably connected to a rotor. There are two connecting rods (16), which are located in front of the cigarette pack bin (6) to be inspected. The ends of the connecting rods (16) are hinged to the upper part of the support plate (5). The groove-shaped base (17) is hinged to the other ends of the two connecting rods (16). The rotor of the shift block (18) is embedded in the slide groove of the groove-shaped base (17) and is slidably connected to it. The electric suction cup module (9) is fixedly connected to the groove-shaped base (17).

4. The semi-automatic machine vision inspection equipment for quality defects of finished medium-sized cigarette packs according to claim 1 is characterized in that: The mobile classification mechanism includes a screw seat, the screw seat is located below the second platform (4) and is fixedly connected to the base (1), the screw seat is rotatably connected to a screw three (19), the screw three slider is fixedly connected to a mounting plate (20), the mounting plate (20) is provided with a through groove, a push block (21) is embedded in the through groove, the push block (21) is provided with a card slot, the push block (21) is vertically slidably connected to the mounting plate (20), the push block (21) passes through the slide groove of the second platform (4), and an electromagnet (22) is fixedly connected below the mounting plate (20).

5. The semi-automatic machine vision inspection equipment for quality defects of finished medium-sized cigarette packs according to claim 1 is characterized in that: Proximity sensors (23) are respectively provided on both sides of the second platform (4), and an alarm light (24) is fixedly connected to the outside of the mounting shell (2).

6. The semi-automatic machine vision inspection equipment for quality defects of finished medium-sized cigarette packs according to claim 1 is characterized in that: A quick maintenance door (25) is provided on the front of the installation shell (2).

7. The semi-automatic machine vision inspection equipment for quality defects of finished medium-sized cigarette packs according to claim 6 is characterized in that: The rapid maintenance door (25) is provided with a magnetic induction switch.

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