A tea capsule tightness detection device
By designing a tea capsule sealing detection device, an automated detection of tea capsule sealing is achieved using a pressure sensor, solving the problems of reliance on subjective judgment and low efficiency in traditional detection methods, and achieving efficient and accurate detection results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING XIAOGUAN TEA CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-29
AI Technical Summary
In current tea capsule production, traditional manual visual inspection and simple pressure testing rely on subjective judgment, resulting in low testing efficiency and large errors, making it difficult to meet the testing needs of large-scale production.
A tea capsule sealing test device was designed, including a fixed frame, a placement block, a clearance mechanism, a sealing test component, and a synchronous sealing mechanism. By monitoring air pressure changes in real time through an air pressure sensor, the device achieves automated testing of tea capsule sealing, reduces manual intervention, and improves testing efficiency and accuracy.
It enables automated detection of tea capsule sealing, significantly improving detection efficiency and accuracy, meeting the needs of large-scale production, and reducing labor costs and quality risks.
Smart Images

Figure CN224303228U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of detection devices, in particular to a tea capsule airtightness detection device. Background Art
[0002] In the field of tea capsule production, airtightness is a key factor affecting product quality and shelf life. At present, the detection of tea capsule airtightness mainly adopts traditional manual visual inspection or simple pressure testing. In the manual visual inspection method, the inspector needs to rely on personal experience and observe whether there are defects such as cracks and holes on the surface of the tea capsule with the naked eye to judge its airtightness. This method highly depends on the inspector's experience and subjective judgment, and it is difficult to unify the judgment criteria of different inspectors, resulting in large errors in the detection results. At the same time, the efficiency of manual visual inspection is extremely low, which is difficult to meet the detection requirements of large-scale production. Moreover, long-term visual inspection is likely to cause visual fatigue of the inspector, further reducing the detection accuracy and efficiency. In view of this, the utility model proposes a tea capsule airtightness detection device. Content of the Utility Model
[0003] The purpose of the utility model is to solve the problems existing in the production of tea capsules in the background art, that is, the traditional manual visual inspection and simple pressure testing rely on subjective judgment, have low detection efficiency, large errors, and are difficult to meet the detection requirements of large-scale production, and to propose a tea capsule airtightness detection device.
[0004] The technical solution of the utility model: A tea capsule airtightness detection device includes a fixed frame arranged in a "C" shape; a placement block arranged on the side of the fixed frame, and multiple groups of placement holes are provided on the placement block for placing tea capsules; a让位机构 (releasing mechanism) installed on both sides of the placement block, and the releasing mechanism is used to drive the placement block to move and turn; two groups of airtightness detection components, and the two groups of airtightness detection components are symmetrically arranged on both sides of the fixed frame for detecting the airtightness of tea capsules; a synchronous airtightness mechanism installed in the fixed frame, and the synchronous airtightness mechanism is used to drive the two groups of airtightness detection components to fit with the placement block.
[0005] Optionally, the releasing mechanism includes rotating shafts fixedly connected to both ends of the placement block, a moving block is rotatably connected to the rotating shafts, limiting sleeves are fixedly connected to the top and bottom of the moving block respectively, limiting rods are slidably connected in the limiting sleeves, multiple groups of limiting rods are all fixedly connected to the fixed frame, and a connecting plate is commonly fixedly connected to the ends of the two groups of limiting rods on the same side far away from the fixed frame. Two groups of first push rod motors are installed on the fixed frame, and the output ends of the two groups of first push rod motors are respectively fixedly connected to the two groups of moving blocks.
[0006] Optionally, the clearance mechanism further includes a set of mounting frames fixedly connected to the side of the moving block away from the placement block. The mounting frames are U-shaped, and a servo motor is mounted on the side of the mounting frame away from the moving block. The output end of the servo motor passes through the mounting frame and is fixedly connected to the rotating shaft.
[0007] Optionally, the sealing detection assembly includes a mounting plate, on the side of the mounting plate near the placement block, multiple sets of cylinders are arranged, and the ends of the multiple sets of cylinders near the placement block are respectively connected to multiple sets of detection cylinders through pipes. The multiple sets of detection cylinders are respectively located at the positions of multiple placement holes, and the multiple sets of cylinders and multiple sets of detection cylinders are all fixedly connected to the side of the mounting plate.
[0008] Optionally, a pressure ring is fixedly connected to the bottom of the detection cylinder, and a rubber ring is installed on the side of the pressure ring near the placement block. Multiple sets of air pressure sensors are respectively installed on the sides of the detection cylinder.
[0009] Optionally, the sealing detection assembly further includes a second push rod motor, which is mounted on the mounting plate near the placement block. A lifting plate is fixedly connected to the output end of the mounting plate, and multiple sets of connecting rods are fixedly connected to the bottom of the lifting plate. Each set of connecting rods movably passes through the top of a set of cylinders and is fixedly connected to a piston plate, which is slidably connected in the cylinder.
[0010] Optionally, the synchronous sealing mechanism includes multiple sets of positioning rods fixedly connected to the fixed frame, and multiple sets of positioning sleeves are slidably connected to the multiple sets of positioning rods respectively. The multiple sets of positioning sleeves are evenly distributed and fixedly connected to the sides of the two sets of mounting plates.
[0011] Optionally, the synchronous sealing mechanism further includes a bidirectional push rod installed on the side of the fixed frame. The two outputs of the bidirectional push rod are respectively fixedly connected to a synchronous plate, and the two sets of synchronous plates are respectively fixedly connected to the sides of two sets of mounting plates.
[0012] In summary, this application includes at least one of the following beneficial technical effects:
[0013] This utility model automates the sealing test of tea capsules by setting up a placement block, a clearance mechanism, a sealing detection component, and a synchronous sealing mechanism. The bidirectional push rod drives two sets of sealing detection components to move synchronously, which can simultaneously detect the sealing films on both sides of the tea capsule. The second push rod motor, together with the cylinder, detection cylinder and other components, realizes rapid pressure testing. The servo motor drives the placement block to flip so that the tested tea capsules fall automatically. All mechanisms work together to reduce manual intervention. Compared with traditional manual visual inspection and simple pressure testing, the detection time is greatly shortened, which meets the high-efficiency detection requirements of large-scale production.
[0014] Furthermore, by using a pressure sensor to monitor the pressure changes inside the testing cylinder in real time, the sealing performance of the tea capsules is determined by precise and quantified pressure data, avoiding subjective judgment errors caused by manual visual inspection. The pressure ring and rubber ring ensure the sealing performance of the testing environment, and the precise movement of the piston plate in the cylinder achieves stable pressurization, ensuring a standardized and consistent testing process. It can accurately locate minute leaks, significantly improving the accuracy and reliability of the test results compared to traditional testing methods, thus guaranteeing the quality of the tea capsule products.
[0015] In summary, this utility model can significantly improve testing efficiency and accuracy, effectively ensure product quality, meet the needs of large-scale production, and reduce labor costs and product quality risks. Attached Figure Description
[0016] Figure 1 A schematic diagram of a tea capsule sealing test device is provided.
[0017] Figure 2 yes Figure 1 Enlarged view of point A in the middle;
[0018] Figure 3 This is a cross-sectional structural diagram of the sealing detection component;
[0019] Figure 4 This is a schematic diagram of the synchronous sealing mechanism.
[0020] Figure label:
[0021] 1. Fixed frame; 2. Placement block; 21. Placement hole;
[0022] 3. Yielding mechanism; 31. Rotating shaft; 32. Moving block; 33. Limit sleeve; 34. Limit rod; 35. Connecting plate; 36. First push rod motor; 37. Mounting frame; 38. Servo motor;
[0023] 4. Sealing detection assembly; 41. Mounting plate; 42. Cylinder; 43. Detection cylinder; 44. Pressure ring; 45. Air pressure sensor; 46. Second push rod motor; 47. Lifting plate; 48. Connecting rod; 49. Piston plate;
[0024] 5. Synchronous sealing mechanism; 51. Positioning rod; 52. Positioning sleeve; 53. Two-way push rod; 54. Synchronous plate. Detailed Implementation
[0025] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0026] The components of the embodiments of the present utility model, which are usually described and shown in the accompanying drawings here, can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model.
[0027] Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.
[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0030] Embodiment
[0031] As Figure 1 shown, a tea capsule airtightness detection device proposed by the present utility model includes a fixed frame 1 arranged in a "C" shape, and the position of the fixed frame 1 is fixed. The above detection device further includes a placement block 2 arranged on the side of the fixed frame 1. A plurality of placement holes 21 are formed on the placement block 2, and the placement holes 21 are arranged in a tapered shape with a larger upper part and a smaller lower part, which is convenient for placing tea capsules.
[0032] Further, please refer to Figure 2 and Figure 3The aforementioned detection device also includes clearance mechanisms 3 installed on both sides of the placement block 2. These clearance mechanisms 3 are used to move and flip the placement block 2, facilitating the placement of tea capsules into the placement hole 21 for detection via a robotic arm when the placement block 2 is moved out between the two sets of sealed detection components 4. They also facilitate the rotation of the placement block 2; after flipping, the detected tea capsules fall under the influence of gravity. The clearance mechanism 3 includes rotating shafts 31 fixedly connected to both ends of the placement block 2. Moving blocks 32 are rotatably connected to the rotating shafts 31. When the moving blocks 32 move, they drive the placement block 2 to move synchronously via the rotating shafts 31 without hindering its rotation. Limiting sleeves 33 are fixedly connected to the top and bottom of the moving block 32, respectively. Limiting rods 34 are slidably connected within the limiting sleeves 33. Multiple sets of limiting rods 34 are fixedly connected to the fixed frame 1, and their fixed positions, combined with the limiting effect of the limiting sleeves 33, ensure smooth movement of the moving block 32. Two sets of limiting rods 34 on the same side are fixedly connected to a connecting plate 35 at the ends away from the fixed frame 1. The connecting plate 35 is used to enhance the stability of the two sets of limiting rods 34 on the same side. Two sets of first push rod motors 36 are installed on the fixed frame 1. The output ends of the two sets of first push rod motors 36 are fixedly connected to two sets of moving blocks 32 respectively. After the first push rod motors 36 are started, they drive the moving blocks 32 to move, thereby driving the placement block 2 to move synchronously. The clearance mechanism 3 also includes a mounting frame 37 fixedly connected to the side of the moving block 32 away from the placement block 2. The mounting frame 37 is U-shaped. A servo motor 38 is installed on the side of the mounting frame 37 away from the moving block 32. The output end of the servo motor 38 passes through the mounting frame 37 and is fixedly connected to the rotating shaft 31. After the servo motor 38 is started, it drives the placement block 2 to rotate through the rotating shaft 31.
[0033] Specifically, such as Figure 3As shown, the above-mentioned testing device includes two sets of sealing detection components 4, which are symmetrically arranged on both sides of the fixed frame 1 for testing the sealing performance of tea capsules. Each sealing detection component 4 includes a mounting plate 41. Multiple sets of cylinders 42 are arranged on the side of the mounting plate 41 near the placement block 2. The ends of the cylinders 42 near the placement block 2 are connected to multiple sets of detection cylinders 43 via pipes. The detection cylinders 43 are located corresponding to multiple placement holes 21, facilitating the covering of the detection cylinders 43 with the holes 21. The cylinders 42 and detection cylinders 43 are fixedly connected to the side of the mounting plate 41, so that when the mounting plate 41 moves, it drives the cylinders 42 and detection cylinders 43 to move synchronously. A pressure ring 44 is fixedly connected to the bottom of each detection cylinder 43. A rubber ring is installed on the side of the pressure ring 44 near the placement block 2. When the detection cylinder 43 approaches the placement block 2, it causes the pressure ring 44 to compress the rubber ring, ensuring the sealing performance of the detection cylinder 43. Pressure sensors 45 are installed on the sides of each of the multiple detection cylinders 43 to monitor the air pressure within the detection cylinders 43. The pressure ring 44 corresponds to the edge of the large end of the tea capsule, making it easy to press down the edge of the tea capsule and achieve separation on both sides of the tea capsule after sealing. The sealing detection component 4 also includes a second push rod motor 46, which is installed on the mounting plate 41 near the placement block 2 and its position is fixed. A lifting plate 47 is fixedly connected to the output end of the mounting plate 41. Multiple sets of connecting rods 48 are fixedly connected to the bottom of the lifting plate 47. The multiple sets of connecting rods 48 respectively move through the top of a set of cylinders 42 and are fixedly connected to a piston plate 49. The piston plate 49 is slidably connected in the cylinder 42. After the second push rod motor 46 is started, it drives the piston plate 49 to slide in the cylinder 42 through the lifting plate 47 and the connecting rods 48. After the detection cylinder 43 is in close contact with the placement block 2, when the piston plate 49 moves to the cylinder 42 and closes to one end of the detection cylinder 43 and blocks the pipe, the air pressure in the detection cylinder 43 increases. When the tea capsule leaks air, the pressure monitored by the air pressure sensor 45 on the side of the detection cylinder 43 continuously decreases, thus indicating that there is a problem with the sealing of the corresponding tea capsule.
[0034] For further details, please refer to Figure 1 and Figure 4The aforementioned testing device also includes a synchronous sealing mechanism 5 installed in the fixed frame 1. The synchronous sealing mechanism 5 is used to drive the two sets of sealing detection components 4 to fit against the placement block 2. The synchronous sealing mechanism 5 includes multiple sets of positioning rods 51 fixedly connected in the fixed frame 1. Multiple sets of positioning sleeves 52 are slidably connected to the multiple sets of positioning rods 51. The multiple sets of positioning sleeves 52 are evenly distributed and fixedly connected to the sides of the two sets of mounting plates 41. Through the limiting effect of the positioning rods 51 and the positioning sleeves 52, the mounting plates 41 in the two sets of sealing detection components 4 can move smoothly. The synchronous sealing mechanism 5 also includes a bidirectional push rod 53 installed on the side of the fixed frame 1. The two outputs of the bidirectional push rod 53 are fixedly connected to synchronous plates 54. The two sets of synchronous plates 54 are fixedly connected to the sides of the two sets of mounting plates 41. After the bidirectional push rod 53 is started, it drives the two sets of mounting plates 41 to move synchronously, which is used to simultaneously detect the sealing performance of the sealing films on both sides of the tea capsule.
[0035] In this embodiment, when a sealing test of the tea capsule is required, the first push rod motor 36 in the clearance mechanism 3 is first activated. The output end of the first push rod motor 36 drives the moving block 32 to slide along the limiting rod 34. Through the cooperation of the limiting sleeve 33 and the limiting rod 34, the moving block 32 is ensured to move smoothly. The movement of the moving block 32 drives the placement block 2 to move synchronously through the rotating shaft 31, moving the placement block 2 out from between the two sets of sealing detection components 4. At this time, the robotic arm can place the tea capsule to be tested into the placement hole 21 on the placement block 2. Since the placement hole 21 is a tapered design with a larger top and a smaller bottom, the tea capsule can be smoothly placed and stably positioned therein. Afterwards, the output end of the first push rod motor 36 retracts and drives the placement block 2 to reset through the moving block 32, so that it is positioned between the two sets of sealing detection components 4.
[0036] The bidirectional push rod 53 in the synchronous sealing mechanism 5 is activated. The two output ends of the bidirectional push rod 53 drive the two sets of synchronous plates 54 to move, and the synchronous plates 54 drive the mounting plates 41 fixedly connected to them to move. The mounting plates 41 slide on the positioning rod 51 via the positioning sleeve 52, ensuring smooth movement. The two sets of mounting plates 41 move synchronously towards the placement block 2, causing the two sets of sealing detection components 4 to gradually approach the placement block 2. When the detection cylinder 43 aligns with the placement hole 21, the bidirectional push rod 53 continues to push, causing the pressure ring 44 at the bottom of the detection cylinder 43 to approach the placement block 2. The rubber ring on the pressure ring 44 makes tight contact with the surface of the placement block 2, forming a sealed environment.
[0037] The second push rod motor 46 is activated. The output of the second push rod motor 46 drives the lifting plate 47 to move. The lifting plate 47, through the connecting rod 48, drives the piston plate 49 to slide within the cylinder 42. When the piston plate 49 moves closer to the detection cylinder 43 and blocks the pipe, the gas in the detection cylinder 43 is compressed, increasing the pressure. At this time, the pressure sensor 45 monitors the pressure changes within the detection cylinder 43 in real time. If the tea capsule is well-sealed, the pressure within the detection cylinder 43 will remain stable; if the tea capsule leaks, the gas in the detection cylinder 43 will leak through the leak point, causing the pressure value monitored by the pressure sensor 45 to continuously decrease. By analyzing the data from the pressure sensor 45, it can be determined whether the sealing of the corresponding tea capsule is qualified.
[0038] After the test is completed, the bidirectional push rod 53 moves in the opposite direction, causing the two sets of sealing and testing components 4 to move away from the placement block 2. Then, the first push rod motor 36 starts again, moving the placement block 2 to a suitable position. Next, the servo motor 38 is started, and the output end of the servo motor 38 drives the placement block 2 to rotate via the rotating shaft 31. Under the action of gravity, the tested tea capsules fall from the placement hole 21 and can be further sorted. Qualified tea capsules enter the next process, while unqualified ones are rejected.
[0039] After the tea capsule falls, the servo motor 38 drives the placement block 2 back to its initial position, and the first push rod motor 36 moves the placement block 2 back between the two sets of sealing detection components 4, preparing for the next round of detection. The entire detection process is automated, improving detection efficiency and accuracy, and meeting the needs of large-scale production.
[0040] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A device for detecting the sealing performance of tea capsules, characterized in that, Comprising: A fixed frame (1) arranged in a "C" shape; A placing block (2) arranged on the side of the fixed frame (1), and multiple groups of placing holes (21) are formed in the placing block (2) for placing tea capsules; A让位机构 (3) installed on both sides of the placing block (2), and the让位机构 (3) is used to drive the placing block (2) to move and flip; Two groups of seal detection components (4), and the two groups of seal detection components (4) are symmetrically arranged on both sides of the fixed frame (1) for detecting the sealing performance of tea capsules; A synchronous sealing mechanism (5) installed in the fixed frame (1), and the synchronous sealing mechanism (5) is used to drive the two groups of seal detection components (4) to fit with the placing block (2).
2. The tea capsule sealing detection device according to claim 1, characterized in that, The让位机构 (3) includes a rotating shaft (31) fixedly connected to both ends of the placing block (2), a moving block (32) is rotatably connected to the rotating shaft (31), limiting sleeves (33) are respectively fixedly connected to the top and bottom of the moving block (32), a limiting rod (34) is slidably connected in the limiting sleeve (33), multiple groups of limiting rods (34) are fixedly connected to the fixed frame (1), a connecting plate (35) is commonly fixedly connected to one ends of the two groups of limiting rods (34) on the same side away from the fixed frame (1), and two groups of first push rod motors (36) are installed on the fixed frame (1), and the output ends of the two groups of first push rod motors (36) are respectively fixedly connected to the two groups of moving blocks (32).
3. The tea capsule sealing detection device according to claim 2, characterized in that, The让位机构 (3) further includes a mounting frame (37) fixedly connected to one side of a moving block (32) away from the placing block (2), the mounting frame (37) is arranged in a "U" shape, a servo motor (38) is installed on one side of the mounting frame (37) away from the moving block (32), and the output end of the servo motor (38) penetrates through the mounting frame (37) and is fixedly connected to the rotating shaft (31).
4. The tea capsule sealing detection device according to claim 3, characterized in that, The seal detection component (4) includes a mounting plate (41), multiple groups of air cylinders (42) are arranged on one side of the mounting plate (41) close to the placing block (2), one ends of the multiple groups of air cylinders (42) close to the placing block (2) are respectively connected to multiple groups of detection cylinders (43) through pipelines, the multiple groups of detection cylinders (43) are respectively located at positions corresponding to the multiple groups of placing holes (21), and the multiple groups of air cylinders (42) and the multiple groups of detection cylinders (43) are fixedly connected to the side of the mounting plate (41).
5. The tea capsule sealing detection device according to claim 4, characterized in that, A pressure ring (44) is fixedly connected to the bottom of the detection cylinder (43), a rubber ring is installed on one side of the pressure ring (44) close to the placing block (2), and air pressure sensors (45) are respectively installed on the sides of the multiple groups of detection cylinders (43).
6. The tea capsule sealing detection device according to claim 5, characterized in that, The seal detection component (4) further includes a second push rod motor (46), the second push rod motor (46) is installed on one side of the mounting plate (41) close to the placing block (2), the output end of the mounting plate (41) is fixedly connected to a lifting plate (47), multiple groups of connecting rods (48) are fixedly connected to the bottom of the lifting plate (47), the multiple groups of connecting rods (48) respectively penetrate through the tops of a group of air cylinders (42) movably and are fixedly connected to a piston plate (49), and the piston plate (49) is slidably connected in the air cylinder (42). It should be noted that the term "让位机构" in Chinese is not clearly defined in the context. Here, a rough translation is provided as "让位机构", but it may need to be adjusted according to the specific meaning in the relevant technical field.
7. The tea capsule sealing detection device according to claim 6, characterized in that, The synchronous sealing mechanism (5) includes multiple sets of positioning rods (51) fixedly connected to the fixed frame (1), and multiple sets of positioning sleeves (52) are slidably connected to the multiple sets of positioning rods (51). The multiple sets of positioning sleeves (52) are evenly distributed and fixedly connected to the sides of the two sets of mounting plates (41).
8. The tea capsule sealing detection device according to claim 7, characterized in that, The synchronous sealing mechanism (5) also includes a bidirectional push rod (53) installed on the side of the fixed frame (1). The two outputs of the bidirectional push rod (53) are respectively fixedly connected to a synchronous plate (54), and the two sets of synchronous plates (54) are respectively fixedly connected to the sides of two sets of mounting plates (41).