Automatic high-speed can body sealing device

Abstract

The application relates to the technical field of can body sealing, and discloses a can body automatic high-speed sealing device, which comprises a conveying mechanism, a supporting frame and a first electric push rod. The can body automatic high-speed sealing device is provided with a pressure sensing mechanism. When the second electric push rod drives the clamping mechanism to clamp the can bottle, the pressure rod extrudes the spring and triggers the pressure sensor to monitor the clamping force in real time. The controller automatically adjusts the extension and retraction amount of the second electric push rod according to a preset threshold value, so that the bottle body is prevented from being broken or slipping due to improper clamping force, and the sealing stability is improved. The spring and the pressure rod are cooperatively designed to form a buffering mechanism. When the surface of the can bottle is uneven, the elastic deformation of the spring can adaptively compensate the clamping force, so that the different shapes of cans are uniformly stressed. An industrial camera shoots the can body position, the bottle mouth state and the cover body placement in real time, and judges the defects such as can deviation and bottle mouth deformation through image recognition. If the detection is abnormal, the controller immediately suspends the sealing and alarms through an alarm.

Description

Technical Field

[0001] This application relates to the field of tank sealing technology, specifically to an automatic high-speed tank sealing device. Background Technology

[0002] Canned food is a type of packaged food that is made of sheet metal, glass, plastic, cardboard, or a combination of these materials and can be sealed to store commercial food. It is processed to achieve commercial sterility and can be kept at room temperature for a relatively long time without spoiling.

[0003] An existing patent (publication number: CN220996890U) discloses a sealing device for can manufacturing and processing, belonging to the field of can sealing technology. It includes a conveyor belt, a reciprocating structure mounted on the top of the conveyor belt, a lifting clamping structure mounted at the bottom of the reciprocating structure, and a fixing structure at the bottom of the lifting clamping structure. The fixing structure includes a support plate, a limit plate mounted on the front of the support plate, a hydraulic cylinder two mounted on the top surface of the limit plate, a telescopic rod two mounted on the middle of the side of the hydraulic cylinder two near the support plate, and a clamping plate mounted on the end of the telescopic rod two away from the hydraulic cylinder two. A rubber cylinder is placed between the two clamping plates. This sealing device for can manufacturing and processing can place the can inside the rubber cylinder during conveying, stabilizing the can and preventing it from tipping over during conveying. During sealing, the hydraulic cylinder two extends the telescopic rod two, and the clamping plate clamps the rubber cylinder, thereby fixing the can inside and facilitating sealing.

[0004] While the devices described in the aforementioned comparative documents can secure the internal canning jars for easy capping, their clamping systems lack a dynamic pressure feedback mechanism. These devices use fixed-stroke hydraulic or pneumatic cylinders for clamping, and cannot adaptively adjust the clamping force when dealing with canning jars made of different materials such as glass, metal, and plastic. For example, the required safe clamping force threshold for glass canning jars is only 60% of that for metal jars. If clamped with a uniform force, it can cause subtle cracks in the glass jars, or even cause them to burst, leading to production line shutdowns. Insufficient clamping force can cause smooth-surfaced canning jars to slip during capping, affecting sealing accuracy and causing the sealing strip to shift. Furthermore, there is a technological gap in the visual inspection process before capping. Existing equipment generally relies on manual sampling or simple mechanical positioning, which cannot detect microscopic defects such as can position misalignment, bottle mouth deformation, and cap warping in real time. This allows defective products to flow into subsequent processes, increasing rework costs. Therefore, an automatic high-speed can sealing device is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides an automatic high-speed sealing device for cans, which improves the stability and reliability of the sealing process and reduces the generation of defective products.

[0006] To achieve the above objectives, this application provides the following technical solution: an automatic high-speed tank sealing device, comprising a conveying mechanism, a support frame, and a first electric push rod. The support frame is fixedly connected to the upper end of the conveying mechanism. The first electric push rod is disposed inside the upper end of the support frame, and a sealing mechanism is disposed at the lower end of the first electric push rod. Second electric push rods are disposed on both the left and right sides of the conveying mechanism. Pressure sensing mechanisms are disposed at the opposite ends of the two sets of second electric push rods, and clamping mechanisms are disposed at the opposite ends of the two sets of pressure sensing mechanisms. An industrial camera is fixedly connected to the front side of the upper end of the support frame, and a controller is disposed on the left side of the conveying mechanism. The pressure sensing mechanism includes a housing, with two sets of housings fixedly connected to the opposite ends of two sets of second electric push rods. A transmission chamber is provided inside the housing, and a pressure sensor is installed inside the transmission chamber. A pressure rod is movably connected to the opposite ends of the two sets of housings, and the opposite ends of the two sets of pressure rods are fixedly connected to the side of the clamping mechanism. A spring is sleeved on the surface of the pressure rod, with one end of the spring fixedly connected to the side of the housing and the other end fixedly connected to the side of the clamping mechanism. An alarm is installed on the front side of the support frame. The conveying mechanism, the second electric push rod, the pressure sensor, the alarm, and the industrial camera are all electrically connected to the controller.

[0007] Through the above scheme, the pressure sensing mechanism is designed so that when the second electric push rod drives the clamping mechanism to clamp the canned jar, the pressure rod squeezes the spring and triggers the pressure sensor to monitor the clamping force in real time. The controller automatically adjusts the extension and retraction of the second electric push rod according to a preset threshold to avoid bottle breakage or slippage due to improper clamping force, thus improving the stability of the capping. The cooperation design between the spring and the pressure rod forms a buffer mechanism. When the surface of the canned jar is uneven, the elastic deformation of the spring can adaptively compensate for the clamping force, ensuring uniform force on cans of different shapes. An industrial camera captures the position of the can body, the state of the bottle mouth, and the placement of the cap in real time, and uses image recognition to determine defects such as can offset and bottle mouth deformation. If an abnormality is detected, the controller immediately pauses the capping process and sounds an alarm to prevent defective products from flowing into subsequent processes.

[0008] Furthermore, sliders are fixedly connected to both the upper and lower sides of the pressure rod, and ball bearings are rotatably connected to the two sets of sliders at their far ends. A sliding groove is provided inside the housing, and the ball bearings are movably connected inside the sliding groove.

[0009] The above solution forms a rolling friction pair between the slider and the ball at the upper and lower ends of the pressure rod, which reduces the traditional sliding friction coefficient and reduces the resistance to the movement of the pressure rod.

[0010] Furthermore, the clamping mechanism includes clamping plates, and two sets of clamping plates are fixedly connected to two sets of pressure rods and two sets of springs near one end. Elastic pads are provided at opposite ends of the two sets of clamping plates.

[0011] The above solution allows for increased friction by using elastic pads at opposite ends of the clamping plates.

[0012] Furthermore, the conveyor belt surface of the conveying mechanism is provided with rubber cylinders, and multiple sets of rubber cylinders are provided and evenly distributed on the conveyor belt surface of the conveying mechanism.

[0013] With the above method, the canned jars are placed inside the rubber cylinder, and the conveyor belt of the conveyor mechanism drives the rubber cylinder to move, using the elastic wrapping of food-grade silicone rubber to achieve initial positioning.

[0014] Furthermore, the spring is made of stainless steel.

[0015] The above method demonstrates that stainless steel exhibits excellent corrosion resistance.

[0016] Furthermore, the rubber cylinder is made of food-grade silicone rubber.

[0017] Through the above method, food-grade silicone rubber has passed FDA certification, is odorless, does not migrate harmful substances, and can directly contact food-grade canning bottles, meeting the hygiene requirements for exported canned goods.

[0018] Furthermore, the industrial camera is a high-resolution camera with a vertically downward-facing lens, used to capture images of the tank's condition.

[0019] Using the above method, a high-resolution camera combined with a vertically downward lens can capture microscopic defects at the bottle opening.

[0020] Furthermore, the controller presets a pressure threshold and a visual detection algorithm, receives signals from the pressure sensor and the industrial camera, and controls the actions of each actuator.

[0021] Through the above scheme, the combined control of the visual inspection algorithm and the pressure control algorithm can complete the dual detection of "position calibration - pressure verification" before sealing.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This automatic high-speed can sealing device utilizes a pressure-sensing mechanism. When the second electric push rod drives the clamping mechanism to hold the can, the pressure rod compresses the spring and triggers the pressure sensor to monitor the clamping force in real time. The controller automatically adjusts the extension and retraction of the second electric push rod according to a preset threshold to prevent can breakage or slippage due to improper clamping force, thus improving sealing stability. The spring and pressure rod work together to form a buffer mechanism. When the can surface is uneven, the elastic deformation of the spring can adaptively compensate for the clamping force, ensuring uniform force distribution for cans of different shapes. An industrial camera captures real-time images of the can's position, the bottle opening's condition, and the cap's placement. Image recognition is used to identify defects such as can misalignment and bottle opening deformation. If an abnormality is detected, the controller immediately pauses the sealing process and triggers an alarm to prevent defective products from flowing into subsequent processes. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present application.

[0025] Figure 2 This is a structural schematic diagram of the rear view of this application;

[0026] Figure 3 This is a top view of the structure of the second electric actuator, pressure sensing mechanism, and clamping mechanism of this application;

[0027] Figure 4 This is a cross-sectional structural schematic diagram of the pressure sensing mechanism of this application;

[0028] Figure 5 for Figure 4 A schematic diagram of the structure at point A in the middle.

[0029] In the picture:

[0030] 1. Conveying mechanism; 2. Support frame; 3. First electric push rod; 4. Sealing mechanism; 5. Second electric push rod; 6. Pressure sensing mechanism; 601. Housing; 602. Transmission chamber; 603. Pressure sensor; 604. Pressure rod; 605. Spring; 606. Slider; 607. Ball bearing; 608. Slide groove; 7. Clamping mechanism; 701. Clamping plate; 702. Elastic pad; 8. Industrial camera; 9. Controller; 10. Rubber tube; 11. Alarm. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 1 , Figure 3 and Figure 4 This embodiment of an automatic high-speed tank sealing device includes a conveying mechanism 1, a support frame 2, and a first electric push rod 3. The support frame 2 is fixedly connected to the upper end of the conveying mechanism 1. The first electric push rod 3 is located inside the upper end of the support frame 2. A capping mechanism 4 is provided at the lower end of the first electric push rod 3. Second electric push rods 5 are provided on both the left and right sides of the conveying mechanism 1. Pressure sensing mechanisms 6 are provided at the opposite ends of the two sets of second electric push rods 5. Clamping mechanisms 7 are provided at the opposite ends of the two sets of pressure sensing mechanisms 6. An industrial camera 8 is fixedly connected to the front of the upper end of the support frame 2. A controller 9 is provided on the left side of the conveying mechanism 1. The pressure sensing mechanism 6 includes a housing 601. Two sets of housings 601 are fixedly connected to the opposite ends of the two sets of second electric push rods 5. A transmission chamber is provided inside the housing 601. 602. A pressure sensor 603 is installed inside the transmission chamber 602. Two sets of housings 601 are movably connected to opposite ends of pressure rods 604. The opposite ends of the two sets of pressure rods 604 are fixedly connected to the side of the clamping mechanism 7. A spring 605 is sleeved on the surface of the pressure rod 604. One end of the spring 605 is fixedly connected to the side of the housing 601, and the other end is fixedly connected to the side of the clamping mechanism 7. An alarm 11 is installed on the front side of the support frame 2. The conveying mechanism 1, the second electric push rod 5, the pressure sensor 603, the alarm 11, and the industrial camera 8 are all electrically connected to the controller 9. The pressure sensing mechanism 6 is configured so that when the second electric push rod 5 drives the clamping mechanism 7 to clamp the canned jar, the pressure rod 604 squeezes the spring 605 and triggers the pressure sensor 603 to monitor the clamping force in real time. The controller 9 automatically adjusts the extension and retraction of the second electric push rod 5 according to a preset threshold to avoid bottle breakage or slippage due to improper clamping force, thus improving the stability of the capping. The combination of spring 605 and pressure rod 604 forms a buffer mechanism. When the surface of the can is uneven, the elastic deformation of spring 605 can adaptively compensate for the clamping force, ensuring uniform force on cans of different shapes. Industrial camera 8 captures real-time images of the can's position, the bottle mouth's condition, and the cap's placement. Image recognition is used to identify defects such as can misalignment and bottle mouth deformation. If an abnormality is detected, controller 9 immediately pauses capping and triggers an alarm via alarm 11 to prevent defective products from flowing into subsequent processes.

[0033] Please see Figure 2 , Figure 4 and Figure 5The pressure rod 604 has sliders 606 fixedly connected to both its upper and lower sides. Two sets of sliders 606 are each connected to a ball bearing 607 at their furthest ends. The housing 601 has a groove 608 inside, and the ball bearing 607 is movably connected inside the groove 608. The clamping mechanism 7 includes clamping plates 701. Two sets of clamping plates 701 are fixedly connected to the two sets of pressure rods 604 and two sets of springs 605 near one end. Elastic pads 702 are provided at opposite ends of the two sets of clamping plates 701. The conveyor belt surface of the conveyor mechanism 1 is provided with rubber... Multiple sets of rubber cylinders 10 are evenly distributed on the surface of the conveyor belt of the conveying mechanism 1. The sliders 606 at the upper and lower ends of the pressure rod 604 and the balls 607 form a rolling friction pair, which reduces the traditional sliding friction coefficient and reduces the moving resistance of the pressure rod 604. The elastic pads 702 provided at opposite ends of the clamping plate 701 can increase the friction. The canned jar is placed into the rubber cylinder 10, and the conveyor belt of the conveying mechanism 1 drives the rubber cylinder 10 to run. The elastic wrapping of food-grade silicone rubber is used to achieve initial positioning.

[0034] Please see Figure 1 and Figure 2 The spring 605 is made of stainless steel, the rubber cylinder 10 is made of food-grade silicone rubber, the industrial camera 8 is a high-resolution camera with a vertically downward lens, used to capture images of the can's status, the controller 9 presets pressure thresholds and visual detection algorithms, receives signals from the pressure sensor 603 and the industrial camera 8 and controls the actions of each actuator. The stainless steel material has excellent corrosion resistance, and the food-grade silicone rubber is FDA certified, odorless, and does not migrate harmful substances, and can directly contact food-grade canning bottles, meeting the hygiene requirements for exported canned goods. The high-resolution camera, combined with the vertically downward lens, can capture microscopic defects at the bottle opening. The linkage control of the visual detection algorithm and the pressure control algorithm can complete the dual detection of "position calibration - pressure verification" before sealing.

[0035] In this embodiment, through the setting of the pressure sensing mechanism 6, when the second electric push rod 5 drives the clamping mechanism 7 to clamp the canned jar, the pressure rod 604 squeezes the spring 605 and triggers the pressure sensor 603 to monitor the clamping force in real time. The controller 9 automatically adjusts the extension and retraction of the second electric push rod 5 according to the preset threshold to avoid bottle breakage or slippage due to improper clamping force, thereby improving the sealing stability. The cooperative design of the spring 605 and the pressure rod 604 forms a buffer mechanism. When the surface of the canned jar is uneven, the elastic deformation of the spring 605 can adaptively compensate for the clamping force, ensuring uniform force on cans of different shapes. The industrial camera 8 captures the position of the can body, the state of the bottle mouth, and the placement of the cap in real time, and judges defects such as can offset and bottle mouth deformation through image recognition. If an abnormality is detected, the controller 9 immediately pauses the sealing process and alarms through the alarm 11 to prevent unqualified products from flowing into the subsequent process.

[0036] The working principle of the above embodiment is as follows: the canning jar is placed inside the rubber tube 10, and the conveyor belt of the conveying mechanism 1 drives the rubber tube 10 to run, using the elastic wrapping of food-grade silicone rubber to achieve initial positioning. When the can reaches the capping station, the conveying mechanism 1 stops running according to the instruction of the controller 9. Through the setting of the pressure sensing mechanism 6, when the second electric push rod 5 drives the clamping mechanism 7 to clamp the rubber tube 10 and the canning jar, the pressure rod 604 squeezes the spring 605 and triggers the pressure sensor 603 to monitor the clamping force in real time. The controller 9 automatically adjusts the extension and retraction of the second electric push rod 5 according to the preset threshold to avoid bottle breakage or slippage due to improper clamping force, thereby improving the capping stability. The cooperation design of the spring 605 and the pressure rod 604 forms a buffer mechanism. When the surface of the canning jar is uneven, the elastic deformation of the spring 605 can adaptively compensate for the clamping force, ensuring uniform force on cans of different shapes. The industrial camera 8 captures the position of the can body, the state of the bottle mouth, and the placement of the cap in real time, and judges defects such as can offset and bottle mouth deformation through image recognition. If an abnormality is detected, the controller 9 will immediately stop the sealing process and trigger an alarm via the alarm 11 to prevent defective products from flowing into subsequent processes.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0038] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic high-speed sealing device for a tank body, comprising a conveying mechanism (1), a support frame (2), and a first electric push rod (3), characterized in that: The support frame (2) is fixedly connected to the upper end of the conveying mechanism (1). The first electric push rod (3) is set inside the upper end of the support frame (2). The lower end of the first electric push rod (3) is provided with a sealing mechanism (4). The conveying mechanism (1) is provided with second electric push rods (5) on both the left and right sides. The two sets of second electric push rods (5) are provided with pressure sensing mechanisms (6) at opposite ends. The two sets of pressure sensing mechanisms (6) are provided with clamping mechanisms (7) at opposite ends. An industrial camera (8) is fixedly connected to the front of the upper end of the support frame (2). A controller (9) is provided on the left side of the conveying mechanism (1). The pressure sensing mechanism (6) includes a housing (601). The two sets of housings (601) are fixedly connected to the opposite ends of the two sets of second electric push rods (5). The housing (601) has a transmission chamber (602) inside, and a pressure sensor (603) is installed inside the transmission chamber (602). The two sets of housings (601) are movably connected to each other with pressure rods (604). The two sets of pressure rods (604) are fixedly connected to the side of the clamping mechanism (7) at their opposite ends. A spring (605) is sleeved on the surface of the pressure rod (604). One end of the spring (605) is fixedly connected to the side of the housing (601), and the other end of the spring (605) is fixedly connected to the side of the clamping mechanism (7). An alarm (11) is installed on the front side of the support frame (2). The conveying mechanism (1), the second electric push rod (5), the pressure sensor (603), the alarm (11), and the industrial camera (8) are all electrically connected to the controller (9).

2. The automatic high-speed sealing device for a tank body according to claim 1, characterized in that: The pressure rod (604) is fixedly connected to sliders (606) on both the upper and lower sides. The two sets of sliders (606) are connected to ball bearings (607) at the ends away from each other. The housing (601) has a groove (608) inside, and the ball bearings (607) are movably connected inside the groove (608).

3. The automatic high-speed sealing device for a tank body according to claim 1, characterized in that: The clamping mechanism (7) includes clamping plates (701). Both sets of clamping plates (701) are fixedly connected to one end of the two sets of pressure rods (604) and the two sets of springs (605). Elastic pads (702) are provided at opposite ends of the two sets of clamping plates (701).

4. The automatic high-speed sealing device for a tank body according to claim 1, characterized in that: The conveyor belt surface of the conveyor mechanism (1) is provided with rubber cylinders (10), and multiple sets of rubber cylinders (10) are provided and are evenly distributed on the conveyor belt surface of the conveyor mechanism (1).

5. The automatic high-speed sealing device for a tank body according to claim 1, characterized in that: The spring (605) is made of stainless steel.

6. The automatic high-speed sealing device for a tank body according to claim 4, characterized in that: The rubber cylinder (10) is made of food-grade silicone rubber.

7. The automatic high-speed sealing device for a tank body according to claim 1, characterized in that: The industrial camera (8) is a high-resolution camera with a vertically downward lens, used to capture images of the tank's condition.

8. The automatic high-speed sealing device for a tank body according to claim 1, characterized in that: The controller (9) presets a pressure threshold and a visual detection algorithm, receives signals from the pressure sensor (603) and the industrial camera (8), and controls the actions of each actuator.

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