An automatic capping machine and sealing detection system for filling and packaging

By combining the image detection system with airbag expansion and liquid filling bottle bonding, the problem of insufficient seal detection of the fully automatic capping machine is solved, realizing immediate and accurate seal judgment, and improving production efficiency and product quality.

CN119191195BActive Publication Date: 2025-08-01GUANGZHOU GUANYU MASCH CO LTD
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Patent Information

Application Number
CN202411623416.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-08-01
Estimated Expiration
2044-11-14

AI Technical Summary

Technical Problem

The existing fully automatic capping machines lack immediate and efficient sealing detection after capping, resulting in poor sealing products flowing into the market, affecting production efficiency and product quality.

Method used

The airbag expansion is used to closely fit the outside of the liquid filling bottle, and gas is continuously passed through the tracheal interface. Photos are taken with the camera, and the image detection system is used to automatically judge the sealing of the bottle cap and the liquid filling bottle, and an alarm signal is generated through bubble characteristic analysis.

Benefits of technology

Realize instant and accurate sealing detection, reduce the waste of poor sealing products, improve production efficiency and product quality, adapt to liquid filling bottles of different sizes and shapes, and avoid damage or contamination caused by physical contact.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a fully automatic capping machine and a sealing detection system for filling and packaging, which relates to the technical field of capping and sealing detection, and includes a casing of a fully automatic filling capping machine and a sealing detection system. An airbag is installed on the bottom surface of the sealing outer casing; by expanding the airbag to closely fit the outer side of the liquid filling bottle, the present invention provides an immediate and intuitive means for sealing detection, which can immediately judge whether the sealing between the bottle cap and the bottle mouth of the liquid filling bottle is good. The immediate detection method greatly improves the production efficiency, reduces product waste and quality problems caused by poor sealing. The airbag can adapt to liquid filling bottles of different sizes and shapes, further improving the applicability and accuracy of the detection. Then, by continuously introducing gas into the sealing outer casing through the air pipe interface, the camera takes pictures inside the liquid filling bottle, and the sealing detection system automatically detects whether the bottle cap and the liquid filling bottle are capped.
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Description

Technical Field

[0001] The present invention relates to the technical field of screw cap sealing detection, and particularly to a full-automatic screw capping machine and a sealing detection system for filling and packaging. Background Art

[0002] A full-automatic screw capping machine is a high-tech packaging production equipment. It is equipped with a precise positioning system and a torque control device, and can tighten the bottle caps efficiently and precisely. With the help of advanced servo drive and control systems, this equipment can operate continuously at a very high speed, significantly increasing the workload of the production line, shortening the production cycle, and meeting the needs of mass production. The full-automatic screw capping machine can complete the screw capping operation at high speed and continuously, significantly increasing the output of the production line. On an automated beverage filling production line, a full-automatic filling and capping machine can fill thousands of bottles of beverages per hour, greatly improving production efficiency. The full-automatic screw capping machine can fill various materials with different properties, such as beverages, edible oils, pharmaceuticals, and daily chemical products.

[0003] When the existing full-automatic screw capping machine caps liquid filling bottles, the fixing effect of the bottle caps is single and poor. The most direct consequence is that the bottle caps are prone to loosening or falling off during transportation or storage. The loosening or falling off of the bottle caps will cause the internal sealing of the liquid filling bottles to be damaged. The existing full-automatic screw capping machines often lack an immediate and efficient sealing detection mechanism. As a result, after the screw capping is completed, additional time and equipment are required for sealing detection, thereby reducing the overall production efficiency. Due to the low detection efficiency, problems with poor sealing are often not detected in a timely manner, resulting in unqualified products flowing into the market, damaging the reputation of the enterprise and the interests of consumers.

[0004] In view of the above technical deficiencies, a solution is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide an immediate and intuitive sealing detection method by making the airbag expand and closely fit the outer side of the liquid filling bottle, which can immediately determine whether the sealing between the bottle cap and the bottle mouth of the liquid filling bottle is good. The immediate detection method greatly improves the production efficiency, reduces product waste and quality problems caused by poor sealing. The airbag can adapt to liquid filling bottles of different sizes and shapes, further improving the applicability and accuracy of the detection. Then, gas is continuously introduced into the sealing housing through the air pipe interface, and the camera takes pictures inside the liquid filling bottle. The sealing detection system automatically detects whether the bottle cap and the liquid filling bottle are capped.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A fully automatic capping machine for filling and packaging, including a housing of the fully automatic capping machine for filling and a sealing detection system. The inner surface of the housing of the fully automatic capping machine for filling is provided with a hydraulic press. The outer surface of the output end of the hydraulic press is provided with an overall adjustment component. The outer surface of the overall adjustment component is provided with two sealing housings. Electric telescopic rods are installed inside both of the two sealing housings. Guide tubes are provided on both of the two electric telescopic rods. First pistons are installed on one end surface of both of the two guide tubes. Connecting rings are installed on the inner surface of both of the two sealing housings. Suction cups are installed on the inner surface of both of the two connecting rings. Sealing tubes are installed on the top surface of both of the two suction cups. The inner surface of the sealing tube is in movable contact with the outer surface of the first piston. Synchronous sealing components are installed on the outer surface of both of the two guide tubes.

[0007] Further, the overall adjustment component includes a limiting column and a moving plate. A plurality of the limiting columns are evenly distributed and installed on the inner surface of the housing of the fully automatic capping machine for filling. The moving plate is installed on the top surface of the output end of the hydraulic press. A rotating motor is installed on the outer surface of the housing of the fully automatic capping machine for filling. The outer surface of the output end of the rotating motor is provided with a rotating shaft. One end surface of the rotating shaft is fixedly connected to the top surface of the sealing housing.

[0008] Further, the inner surface of the moving plate is in movable contact with the outer surface of a plurality of the limiting columns. The outer surface of the moving plate is fixedly connected to the outer surface of the two sealing housings.

[0009] Further, the synchronous sealing component includes a connecting column and two lifting grooves. The connecting column is installed on the outer surface of the guide tube. The two lifting grooves are opened inside the connecting ring. Two driving gear racks are installed on the outer surface of the connecting column.

[0010] Further, two rotating columns are movably installed inside the sealing housing. An air pipe interface is installed on the outer surface of the sealing housing. Driving gear rings are installed on the outer surface of both of the two rotating columns. The outer surface of the driving gear ring is meshed with the outer surface of the driving gear rack.

[0011] Further, two sealing cavities are opened inside the sealing housing. Extrusion columns are movably installed at the inner wall of both of the two sealing cavities. Connecting plates are installed on the outer surface of both of the two extrusion columns. Driven gear racks are installed on the outer surface of both of the two connecting plates. The outer surface of the driven gear rack is meshed with the outer surface of the driving gear ring.

[0012] Further, second pistons are installed on the bottom surfaces of the two extrusion columns, the outer surfaces of the second pistons are in movable contact with the inner walls of the sealing cavities, an airbag is installed on the bottom surface of the sealing housing, two air inlet holes are formed in the outer surface of the airbag, and two air permeable holes are formed in the interior of the sealing housing.

[0013] Further, the seal detection system includes an image collection unit, an image judgment unit, and an alarm unit;

[0014] The image collection unit collects image data of the liquid filling bottle through a camera and sends it to the image judgment unit;

[0015] The image judgment unit is used to obtain and process the image data, extract the contour according to the image data to obtain the liquid distribution area in the liquid filling bottle in the image data, perform feature analysis in the liquid distribution area to obtain the bubble distribution in the liquid distribution area, judge the connection and sealing effect between the liquid filling bottle and the bottle cap according to the bubble distribution to generate an alarm signal, and send the alarm signal to the alarm unit;

[0016] The alarm unit is used to receive the alarm signal and control the alarm light to flash.

[0017] Further, the specific process of generating the alarm signal is as follows:

[0018] S101. Obtain a liquid sample image containing bubbles through a camera device, where the sample image includes a plan view and a side view of the liquid. Use the differential Laplacian enhancement algorithm to enhance the edges and contrast of the obtained plan view image, improve the contrast between the bubbles and the background, and make the edges of the bubbles clearer;

[0019] S102. Extract features from the enhanced image through local binary pattern. For the unique attributes of the bubbles, including the shape, size, and edge smoothness of the bubbles, the shape coefficient a, size coefficient b, and edge smoothness coefficient c of the bubbles form a bubble feature set data;

[0020] S103. Calculate the airtightness coefficient A according to the bubble feature set data: w1 is a constant, e1, e2, and e3 are proportionality coefficients. According to the basic requirements for the seal between the liquid filling bottle and the bottle cap, set the airtightness coefficient threshold A1;

[0021] S103. When the airtightness coefficient A is greater than or equal to A1, the seal between the liquid filling bottle and the bottle cap is incomplete and the alarm signal is sent to the alarm unit;

[0022] When the airtightness coefficient A is less than A1, the seal between the liquid filling bottle and the bottle cap is complete.

[0023] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows:

[0024] 1. For the full-automatic capping machine for filling and packaging, by expanding the airbag to closely fit the outer side of the liquid filling bottle, an immediate and intuitive means of sealing detection is provided, which can immediately determine whether the sealing between the bottle cap and the bottle mouth of the liquid filling bottle is good. The immediate detection method greatly improves the production efficiency and reduces product waste and quality problems caused by poor sealing. The airbag can adapt to liquid filling bottles of different sizes and shapes, further improving the applicability and accuracy of the detection. Then, gas is continuously introduced into the sealing housing through the air pipe interface, and the camera takes pictures inside the liquid filling bottle. The sealing detection system automatically detects whether the bottle cap is screwed onto the liquid filling bottle.

[0025] 2. For the full-automatic capping machine for filling and packaging, by expanding the airbag to closely fit the outer side of the liquid filling bottle, the camera collects the image data of the liquid filling bottle and sends it to the image judgment unit. There is no need to directly contact the liquid filling bottle, avoiding damage or contamination to the product that may be caused by physical contact in traditional detection methods. The image judgment unit analyzes and processes the image data of the liquid filling bottle to obtain the data on the number and size of bubbles inside the image data of the liquid filling bottle, accurately extracts the number and size of the bubbles, ensures the accuracy of the detection. The judgment unit quickly judges the connection and sealing effect between the liquid filling bottle and the bottle cap according to the bubble number data and bubble size data, and immediately sends the result to the alarm unit, enabling the staff to immediately know which liquid filling bottles have poor sealing effects, and thus take timely measures.

[0026] 3. For the full-automatic capping machine for filling and packaging, through the coordinated work of the rotating motor and the hydraulic press, the whole process of the bottle cap from adsorption, rotation to linear movement and final capping is automated, greatly improving the production efficiency, reducing manual intervention and waiting time, helping to avoid misalignment or damage of the bottle cap during the capping process, and improving product quality and consistency.

[0027] 4. For the full-automatic capping machine for filling and packaging, the electric telescopic rod drives the first piston to move in the sealing tube through the guide tube, fixing the bottle cap on the suction cup, facilitating the movement of the bottle cap, and stably and quickly completing the operations of sucking, moving and capping the bottle cap, significantly improving the production efficiency, ensuring the stability and accuracy of the bottle cap during movement, helping to avoid misalignment or damage of the bottle cap during the capping process, improving product quality and consistency, and adapting to bottle caps of different sizes and shapes. Only by adjusting the moving distance of the suction cup and the first piston in the sealing tube can it process a variety of different liquid filling bottles, improving the flexibility and utilization rate of the equipment. Description of the Drawings

[0028] Figure 1Shows the overall structural schematic diagram of the present invention;

[0029] Figure 2 Shows the overall structural schematic diagram of the present invention from another angle;

[0030] Figure 3 Shows the internal structural schematic diagram of the overall adjustment component of the present invention;

[0031] Figure 4 Shows the overall structural schematic diagram of the synchronous sealing component of the present invention;

[0032] Figure 5 Shows the internal structural schematic diagram of the synchronous sealing component of the present invention;

[0033] Figure 6 Shows the present invention Figure 5 Schematic enlarged view of the structure of part A in;

[0034] Figure 7 Shows the structural schematic diagram of the seal detection system of the present invention;

[0035] Legend: 1. Automatic capping machine shell for filling; 2. Hydraulic press; 3. Limit post; 4. Moving plate; 5. Rotating motor; 6. Rotating shaft; 7. Sealing outer shell; 8. Air pipe interface; 9. Airbag; 10. Electric telescopic rod; 11. Guide pipe; 12. Connecting column; 13. Lifting groove; 14. Connecting ring; 15. Driving gear rack; 16. Rotating column; 17. Driving gear ring; 18. Driven gear rack; 19. Connecting plate; 20. Extrusion column; 21. First piston; 22. Second piston; 23. Vent hole; 24. Air inlet hole; 25. Suction cup; 26. Sealing pipe; 27. Sealing cavity. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Embodiment 1:

[0038] As Figures 1-6As shown in the figure, a fully automatic capping machine for filling and packaging includes a fully automatic capping machine housing 1 for filling and a sealing detection system. On the inner surface of the fully automatic capping machine housing 1 for filling, a hydraulic press 2 is installed. On the outer surface of the output end of the hydraulic press 2, an overall adjustment component is installed. On the outer surface of the overall adjustment component, two sealing housings 7 are installed. Inside both of the two sealing housings 7, electric telescopic rods 10 are installed. On both of the two electric telescopic rods 10, guide pipes 11 are provided. On one end surface of each of the two guide pipes 11, a first piston 21 is installed. On the inner surface of each of the two sealing housings 7, a connecting ring 14 is installed. On the inner surface of each of the two connecting rings 14, a suction cup 25 is installed. On the top surface of each of the two suction cups 25, a sealing pipe 26 is installed. The inner surface of the sealing pipe 26 is in movable contact with the outer surface of the first piston 21. On the outer surface of each of the two guide pipes 11, a synchronous sealing component is installed. The hydraulic press 2 facilitates driving the suction cup 25 to perform linear movement, driving the suction cup 25 and the bottle cap to perform rotational movement and linear movement, and through the coordinated operation of the rotary motor 5 and the hydraulic press 2, the whole process automation of the bottle cap from adsorption, rotation to linear movement and finally capping is realized, greatly improving the production efficiency, reducing manual intervention and waiting time, helping to avoid the dislocation or damage of the bottle cap during the capping process, and improving the product quality and consistency.

[0039] The overall adjustment component includes a limit post 3 and a moving plate 4. A number of limit posts 3 are evenly distributed and installed on the inner surface of the fully automatic capping machine housing 1 for filling. The moving plate 4 is installed on the top surface of the output end of the hydraulic press 2. On the outer surface of the fully automatic capping machine housing 1 for filling, a rotary motor 5 is installed. On the outer surface of the output end of the rotary motor 5, a rotary shaft 6 is installed. One end surface of the rotary shaft 6 is fixedly connected to the top surface of the sealing housing 7. The inner surface of the moving plate 4 is in movable contact with the outer surface of a number of limit posts 3. The outer surface of the moving plate 4 is fixedly connected to the outer surfaces of the two sealing housings 7. When the rotary motor 5 and the hydraulic press 2 work, the rotary motor 5 drives the rotary shaft 6 to perform rotational movement, the rotary shaft 6 drives the sealing housing 7 to perform rotational movement, and the sealing housing 7 drives the electric telescopic rod 10, the connecting ring 14 and the suction cup 25 to synchronously perform rotational movement.

[0040] The synchronous sealing assembly includes a connecting column 12 and two lifting grooves 13. The connecting column 12 is installed on the outer surface of the guide tube 11. The two lifting grooves 13 are opened inside the connecting ring 14. The outer surface of the connecting column 12 is installed with two active gear strips 15. Two rotating columns 16 are movably installed inside the sealing shell 7. The outer surface of the sealing shell 7 is installed with an air pipe interface 8. The outer surfaces of the two rotating columns 16 are both installed with a transmission gear ring 17. The outer surface of the transmission gear ring 17 is meshed with the outer surface of the active gear strip 15. Two sealing chambers 27 are opened inside the sealing shell 7. The inner walls of the two sealing chambers 27 are movably installed with extrusion columns 20. The outer surfaces of the two extrusion columns 20 are both installed with connecting plates 19. The outer surface of the connecting plate 19 is equipped with a driven gear bar 18, and the outer surface of the driven gear bar 18 is meshed with the outer surface of the transmission gear ring 17. The bottom end surfaces of the two extrusion columns 20 are equipped with a second piston 22, and the outer surface of the second piston 22 is in active contact with the inner wall of the sealing cavity 27. The bottom end surface of the sealing shell 7 is equipped with an air bag 9, and the outer surface of the air bag 9 is provided with two air inlet holes 24. The interior of the sealing shell 7 is provided with two air holes 23. The hydraulic press 2 drives the movable plate 4 to move stably on the outside of the limit column 3, so that the movable plate 4 drives the sealing shell 7 to move, and the sealing shell 7 drives the connecting ring 14, the suction cup 25 and the electric telescopic rod 10 to move synchronously, so that the suction cup 25 moves to the top surface of the bottle cap. The controller controls the electric telescopic rod 10 to work, and the electric telescopic rod 10 drives the first piston 21 to move in the sealing tube 26 through the guide tube 11. The first piston 21 moves upward along the sealing tube 26, so that the atmospheric pressure inside the sealing tube 26 and the suction cup 25 is reduced, so that the bottle cap is fixed on the suction cup 25, which is convenient for driving the bottle cap to move, and the bottle cap suction, movement and capping operations are completed stably and quickly, which significantly improves production efficiency, ensures the stability and accuracy of the bottle cap during the movement process, and adapts to bottle caps of different sizes and shapes. It only needs to adjust the moving distance of the suction cup 25 and the first piston 21 in the sealing tube 26, so that it can handle a variety of different liquid filling bottles, thereby improving the flexibility and utilization of the equipment. The guide tube 11 synchronously drives The connecting column 12 and the two driving gear strips 15 move synchronously, and the lifting groove 13 on the connecting ring 14 facilitates the linear movement of the two driving gear strips 15. The outer surface of the driving gear strip 15 is meshed with the outer surface of the transmission gear ring 17, so that the driving gear strip 15 drives the transmission gear ring 17 and the rotating column 16 to rotate. The outer surface of the transmission gear ring 17 is meshed with the outer surface of the driven gear strip 18, so that the transmission gear ring 17 drives the driven gear strip 18 to move. The driven gear strip 18 drives the connecting plate 19, the extrusion column 20 and the second piston 22 to move in the sealing chamber 27, so that the gas in the sealing chamber 27 is compressed into the air bag 9 through the air inlet hole 24, so that the air bag 9 expands and fits tightly against the outside of the liquid filling bottle.An immediate and intuitive means of leak detection is provided, which can immediately determine whether the seal between the bottle cap and the mouth of the liquid filling bottle is good. The immediate detection method greatly improves production efficiency and reduces product waste and quality problems caused by poor sealing. The airbag 9 can adapt to liquid filling bottles of different sizes and shapes, further improving the applicability and accuracy of detection. Then, gas is continuously introduced into the sealing housing 7 through the air pipe interface 8, and the camera takes pictures inside the liquid filling bottle. The sealing detection system automatically detects whether the bottle cap is screwed onto the liquid filling bottle.

[0041] The working process of the present invention: When the bottle cap of the liquid filling bottle needs to be automatically screwed, the hydraulic press 2 is controlled by the controller to work. The hydraulic press 2 drives the moving plate 4 to move stably outside the limit column 3, so that the moving plate 4 drives the sealing housing 7 to move, and the sealing housing 7 drives the connecting ring 14, the suction cup 25 and the electric telescopic rod 10 to move synchronously, so that the suction cup 25 moves to the top surface of the bottle cap. The electric telescopic rod 10 is controlled by the controller to work. The electric telescopic rod 10 drives the first piston 21 to move in the sealing tube 26 through the guide tube 11. The first piston 21 moves upward along the sealing tube 26, reducing the atmospheric pressure inside the sealing tube 26 and the suction cup 25, fixing the bottle cap on the suction cup 25, facilitating the movement of the bottle cap, and stably and quickly completing the operations of sucking, moving and screwing the bottle cap, significantly improving production efficiency, ensuring the stability and accuracy of the bottle cap during movement, and adapting to bottle caps of different sizes and shapes. Only by adjusting the moving distance of the first piston 21 in the suction cup 25 and the sealing tube 26 can various different liquid filling bottles be processed, improving the flexibility and utilization rate of the equipment.

[0042] The rotating motor 5 and the hydraulic press 2 work. The rotating motor 5 drives the rotating shaft 6 to rotate, and the rotating shaft 6 drives the sealing housing 7 to rotate. The sealing housing 7 drives the electric telescopic rod 10, the connecting ring 14 and the suction cup 25 to rotate synchronously. The hydraulic press 2 facilitates driving the suction cup 25 to move linearly, facilitating driving the suction cup 25 and the bottle cap to rotate and move linearly. Through the coordinated work of the rotating motor 5 and the hydraulic press 2, the whole process of automatic operation from adsorbing, rotating to linear moving and finally screwing the bottle cap is realized, greatly improving production efficiency, reducing manual intervention and waiting time, helping to avoid misalignment or damage of the bottle cap during the screwing process, and improving product quality and consistency. <LID= <LID=

[0043] Moreover, the guide tube 11 synchronously drives the connecting column 12 and the two driving gear racks 15 to move synchronously. The lifting grooves 13 on the connecting ring 14 facilitate the linear movement of the two driving gear racks 15. The outer surface of the driving gear rack 15 meshes with the outer surface of the transmission gear ring 17, causing the driving gear rack 15 to drive the transmission gear ring 17 and the rotating column 16 to perform a rotational motion. The outer surface of the transmission gear ring 17 meshes with the outer surface of the driven gear rack 18, causing the transmission gear ring 17 to drive the driven gear rack 18 to move. The driven gear rack 18 drives the connecting plate 19, the extrusion column 20, and the second piston 22 to move within the sealing cavity 27, causing the gas in the sealing cavity 27 to be compressed into the airbag 9 through the air inlet hole 24, causing the airbag 9 to expand and closely fit the outer side of the liquid filling bottle, providing an immediate and intuitive means of sealing detection, and immediately determining whether the sealing between the bottle cap and the mouth of the liquid filling bottle is good. The immediate detection method greatly improves the production efficiency, reduces product waste and quality problems caused by poor sealing. The airbag 9 can adapt to liquid filling bottles of different sizes and shapes, further improving the applicability and accuracy of the detection. Then, gas is continuously introduced into the sealing housing 7 through the air pipe interface 8, and the camera takes pictures inside the liquid filling bottle. The sealing detection system automatically detects whether the bottle cap and the liquid filling bottle are screwed on.

[0044] Embodiment 2:

[0045] As Figure 7 shown, a sealing detection system for a fully automatic capping machine for filling and packaging includes a fully automatic capping machine housing 1 for filling and a sealing detection system. The sealing detection system includes an image collection unit, an image judgment unit, and an alarm unit;

[0046] The image collection unit collects image data of the liquid filling bottle through a camera and sends it to the image judgment unit;

[0047] The image judgment unit is used to obtain and process the image data, extract the contour according to the image data to obtain the liquid distribution area in the liquid filling bottle in the image data, perform feature analysis in the liquid distribution area to obtain the bubble distribution in the liquid distribution area, judge the connection sealing effect between the liquid filling bottle and the bottle cap according to the bubble distribution to generate an alarm signal, and send the alarm signal to the alarm unit;

[0048] The alarm unit is used to receive the alarm signal and control the alarm light to flash.

[0049] The specific process of generating the alarm signal is as follows:

[0050] S101. Obtain an image of a liquid sample containing bubbles through an imaging device. The sample image includes a planar view and a side view of the liquid. Use the differential Laplacian enhancement algorithm to enhance the edges and contrast of the obtained planar view image, improve the contrast between the bubbles and the background, and make the edges of the bubbles clearer;

[0051] S102. Extract features from the enhanced image through local binary patterns. For the unique properties of the bubbles, including the shape, size, and edge smoothness of the bubbles, the shape coefficient a, size coefficient b, and edge smoothness coefficient c of the bubbles form a set of bubble feature data;

[0052] S103. Calculate the airtightness coefficient A according to the bubble feature set data: w1 is a constant, and e1, e2, and e3 are proportionality coefficients. According to the basic requirements for the seal between the liquid filling bottle and the bottle cap, set the airtightness coefficient threshold A1;

[0053] S103. When the airtightness coefficient A is greater than or equal to A1, the seal between the liquid filling bottle and the bottle cap is incomplete, and an alarm signal is sent to the alarm unit;

[0054] When the airtightness coefficient A is less than A1, the seal between the liquid filling bottle and the bottle cap is complete.

[0055] In the present invention, the camera of the image collection unit collects the image data of the liquid filling bottle and sends it to the image judgment unit. Without directly contacting the liquid filling bottle, it avoids the damage or contamination to the product that may be caused by physical contact in the traditional detection method. The image judgment unit analyzes and processes the image data of the liquid filling bottle to obtain the bubble quantity data and bubble size data inside the image data of the liquid filling bottle, accurately extracts the quantity and size of the bubbles, ensures the accuracy of the detection. The judgment unit quickly judges the connection and sealing effect between the liquid filling bottle and the bottle cap according to the bubble quantity data and bubble size data, and immediately sends the result to the alarm unit, enabling the staff to immediately know which liquid filling bottles have poor sealing effects, so as to take measures in time.

[0056] The setting of the interval and the size of the threshold is for the convenience of comparison. Regarding the size of the threshold, it depends on the amount of sample data and the base quantity set by those skilled in the art for each group of sample data; as long as it does not affect the proportional relationship between the parameters and the quantified values.

[0057] The above formulas are all dimensionless and take their numerical values for calculation. The formulas are obtained by collecting a large amount of data and performing software simulation to get a formula closest to the actual situation. The preset parameters in the formulas are set by those skilled in the art according to the actual situation;

[0058] In the two embodiments provided by this application, it should be understood that the disclosed devices and systems can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods. For example, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection of the devices or modules can be in electrical, mechanical or other forms;

[0059] As mentioned above, the above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An automatic capping machine for filling and packaging, comprising an automatic capping machine housing (1) for filling and a seal detection system, characterized in that, On the inner surface of the casing (1) of the fully automatic capping machine for filling, a hydraulic press (2) is installed. On the outer surface of the output end of the hydraulic press (2), an overall adjustment assembly is installed. On the outer surface of the overall adjustment assembly, two sealing casings (7) are installed. Inside both of the sealing casings (7), electric telescopic rods (10) are installed. On both of the electric telescopic rods (10), guide pipes (11) are provided. On one end surface of both of the guide pipes (11), first pistons (21) are installed. On the inner surface of both of the sealing casings (7), connecting rings (14) are installed. On the inner surface of both of the connecting rings (14), suction cups (25) are installed. On the top surface of both of the suction cups (25), sealing pipes (26) are installed. The inner surface of the sealing pipe (26) is in movable contact with the outer surface of the first piston (21). On the outer surface of both of the guide pipes (11), synchronous sealing assemblies are installed. On the bottom surface of the sealing casing (7), an airbag (9) is installed. On the outer surface of the airbag (9), two air inlet holes (24) are provided; The synchronous sealing assembly includes a connecting column (12) and two lifting grooves (13). The connecting column (12) is installed on the outer surface of the guide pipe (1). Two lifting grooves (13) are opened in the interior of the connecting ring (14). On the outer surface of the connecting column (12), two driving gear racks (15) are installed; Inside the sealing casing (7), two rotating columns (16) are movably installed. On the outer surface of the sealing casing (7), an air pipe interface (8) is installed. On the outer surface of both of the rotating columns (16), transmission gear rings (17) are installed. The outer surface of the transmission gear ring (17) is meshed with the outer surface of the driving gear rack (15).

2. The full-automatic capping machine for filling and packaging according to claim 1, characterized in that, The overall adjustment assembly includes a limiting column (3) and a moving plate (4). A number of limiting columns (3) are evenly distributed and installed on the inner surface of the casing (1) of the fully automatic capping machine for filling. The moving plate (4) is installed on the top surface of the output end of the hydraulic press (2). On the outer surface of the casing (1) of the fully automatic capping machine for filling, a rotating motor (5) is installed. On the outer surface of the output end of the rotating motor (5), a rotating shaft (6) is installed. One end surface of the rotating shaft (6) is fixedly connected to the top surface of the sealing casing (7).

3. The full-automatic capping machine for filling and packaging according to claim 2, characterized in that, The inner surface of the moving plate (4) is in movable contact with the outer surface of a number of limiting columns (3). The outer surface of the moving plate (4) is fixedly connected to the outer surface of the two sealing casings (7).

4. The fully automatic capping machine for filling and packaging according to claim 1, wherein, Inside the sealing casing (7), two sealing cavities (27) are opened. On the inner walls of both of the sealing cavities (27), extrusion columns (20) are movably installed.

5. The fully automatic capping machine for filling and packaging according to claim 4, characterized in that, On the outer surface of both of the extrusion columns (20), connecting plates (19) are installed. On the outer surface of both of the connecting plates (19), driven gear racks (18) are installed. The outer surface of the driven gear rack (18) is meshed with the outer surface of the transmission gear ring (17).

6. The fully automatic capping machine for filling and packaging according to claim 5, characterized in that, The bottom surfaces of the two extrusion columns (20) are both provided with second pistons (22), and the outer surfaces of the second pistons (22) are in movable contact with the inner walls of the sealing cavities (27). Two air vents (23) are formed inside the sealing housing (7).

7. A sealing detection system for a fully automatic capping machine used in filling and packaging, which is applied to a fully automatic capping machine used in filling and packaging according to any one of claims 1-6, and is characterized in that: The seal detection system includes an image collection unit, an image judgment unit and an alarm unit; The image collection unit collects image data of the liquid filling bottle through a camera and sends it to the image judgment unit; The image judgment unit is used to obtain and process the image data, extract the contour according to the image data to obtain the liquid distribution area in the liquid filling bottle in the image data, perform feature analysis in the liquid distribution area to obtain the bubble distribution in the liquid distribution area, judge the connection sealing effect between the liquid filling bottle and the bottle cap according to the bubble distribution to generate an alarm signal, and send the alarm signal to the alarm unit; The alarm unit is used to receive the alarm signal and control the alarm light to flash.

Citation Information

Patent Citations

  • Apparatus for mechanically sealing containers with a screw-on lid

    CH637600A5

  • Cap screwing device for food filling bottles

    CN107445126A