Vacuum package detection equipment

Abstract

The invention belongs to the field of vacuum package detection, and particularly relates to vacuum package detection equipment which comprises a detection tank, the top surface of the detection tank is open, a hydraulic rod is arranged above the detection tank, a net plate is fixedly connected to the bottom of the hydraulic rod, a sealing plate is arranged above the net plate, and the sealing plate is fixedly connected to the bottom of the hydraulic rod. The top of the sealing plate is fixedly connected with a negative pressure pump, the absorption end of the negative pressure pump is located at the bottom of the sealing plate, the bottom of the hydraulic rod penetrates through the top of the sealing plate, and the outer side of the output end of the hydraulic rod is fixedly connected with a blocking ring. At the moment, the inside of the detection tank is observed through the observation mirror, the outside negative pressure is larger than the inside negative pressure of the vacuum package, if bubbles leak out of the vacuum package, the package is not sealed enough, if no bubbles leak out, the package is intact, and through the arrangement, whether the sealing performance of the vacuum package reaches the standard or not can be effectively detected.

Description

Technical Field

[0001] This invention belongs to the field of vacuum packaging inspection, specifically a vacuum packaging inspection device. Background Technology

[0002] Vacuum packaging, also known as depressurized packaging, involves removing all the air from the packaging container and sealing it to maintain a high depressurization state inside the bag. The scarcity of air is equivalent to a low-oxygen effect, which eliminates the conditions for microorganisms to survive, thereby ensuring the freshness of food and preventing spoilage.

[0003] Vacuum packaging protects products from environmental pollution and extends the shelf life of food, enhancing product value and quality. However, if air leakage occurs, the packaging's effectiveness will be greatly reduced, thus requiring rigorous testing.

[0004] In factory production, a large number of vacuum packages need to be inspected. If traditional methods are used for manual inspection step by step, it is too time-consuming. If sampling inspection is used, the safety of food or other products in vacuum packages cannot be guaranteed.

[0005] Therefore, the present invention provides a vacuum packaging inspection device. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a vacuum packaging testing device, including a testing tank, the top surface of which is open, a hydraulic rod is provided above the testing tank, a mesh plate is fixedly connected to the bottom of the hydraulic rod, a sealing plate is provided above the mesh plate, a negative pressure pump is fixedly connected to the top of the sealing plate, the absorption end of the negative pressure pump is located at the bottom of the sealing plate, the bottom of the hydraulic rod penetrates the top of the sealing plate, a blocking ring is fixedly connected to the outside of the output end of the hydraulic rod, the blocking ring is located between the support plate and the mesh plate, and multiple observation mirrors are fixedly connected to the surface of the testing tank; The vacuum packaging to be tested is placed in the testing tank, which is pre-filled with four-fifths water. Then, the hydraulic rod is activated, causing the mesh plate and sealing plate to sink. The mesh plate has many perforations, which press the vacuum packaging downwards until it is completely submerged in water. If the vacuum packaging has high buoyancy, it will stick to the bottom of the mesh plate; if it has low buoyancy, it will sink to the bottom of the testing tank. The sealing plate then seals the testing tank. A negative pressure pump is then activated to create a vacuum inside the testing tank. The inside of the testing tank is observed through a viewing mirror. At this point, the external negative pressure is greater than the internal negative pressure of the vacuum packaging. If air bubbles are found leaking from the vacuum packaging, it indicates that the packaging is not properly sealed. If no air bubbles leak out, the packaging is intact. This method effectively tests whether the vacuum packaging's sealing performance meets the standards.

[0008] Preferably, the testing tank and the hydraulic rod form a testing assembly, of which there are four. A sorting machine is arranged between the four testing assemblies, and each sorting machine is connected to a directional conveyor belt. A main conveyor belt is arranged on the outside of the sorting machine. Through the arrangement of the sorting machine, batch-produced vacuum packaging is placed on the main conveyor belt and moved to the sorting machine. The sorting machine then transfers the packaging one by one to the directional conveyor belt, allowing the packaging to move directionally into the testing tank for sealing testing. This arrangement achieves the effect of batch transfer and testing, effectively improving the testing efficiency.

[0009] Preferably, the top surface of the sorting machine is hexagonal, with four directional conveyor belts aligned with four adjacent sides of the sorting machine, and the output end of the main conveyor belt flush with the other two sides of the sorting machine. Through the shape of the sorting machine and the arrangement of the directional conveyor belts, products moving from the main conveyor belt to the sorting machine can be smoothly transferred to the directional conveyor belts, and the operation of the sorting machine is simplified, requiring only switching in four directions to complete the work.

[0010] Preferably, two optical probes are connected to the inner wall of the testing tank, and the two optical probes are symmetrically arranged. Multiple support frames are connected between the mesh plate and the bottom of the hydraulic rod. Multiple vibration motors are fixed inside the mesh plate. In order to further reduce manual operation, the internal condition of the testing tank is observed by the optical probes. After the condition in each testing tank is observed by the optical probe, it is transmitted to the same terminal. Through the split-screen observation method, only one person needs to stay in front of the operating terminal to carry out the testing work of the entire testing equipment. The vibration motors are set so that when the mesh plate is slowly lowered into the water, the vibration motors are activated, which will generate slight vibrations in the mesh plate, allowing the air bubbles at the bottom of the mesh plate to disperse and move upward. The vibration motors are turned off during the testing process, which ensures that no interfering air bubbles remain at the bottom of the mesh plate during the preparation process, thus ensuring the accuracy of the testing process.

[0011] Preferably, a support plate for placing the products during detection is provided below the mesh plate. A plurality of sliding columns are connected to the top of the support plate. The top of the sliding column penetrates through the bottom edge of the mesh plate and is slidably clamped with the mesh plate. An anti-drop plate is fixedly connected to the top of the sliding column. The support plate can be used to place vacuum packages. This not only prevents packages with low buoyancy from sinking to the bottom, reducing the problem of salvage after detection, but also requires the pressure resistance of the package during the detection of the vacuum package. After the seal detection is completed, the hydraulic rod is started to sink further. Since the support plate and the mesh plate are slidably connected by the sliding columns, when the support plate touches the ground, the mesh plate can continue to sink, causing the bottom of the mesh plate to squeeze the product. By presetting the downward pressure of the hydraulic rod, if the product does not break under this force, it indicates that the product is qualified, and unqualified products will break and be observed. Through this setting, the comprehensiveness of the detection is effectively improved, and there is no need to replace the detection equipment. A water pipe is connected to the bottom of the detection tank for replacing or increasing the internal water source.

[0012] Preferably, a plurality of docking cylinders adapted to the sliding columns are fixedly connected to the top surface of the sealing plate. The bottom of the docking cylinder is open. An annular sealing ring is fixedly connected to the top of the sealing plate. The sealing ring is sleeved outside the hydraulic rod. The inner ring of the sealing ring is made of elastic rubber material, and the outer ring of the sealing ring is a solid material, and the outer ring is fixedly connected to the sealing plate. An air pump connected to the sealing ring is fixedly connected to the top of the sealing plate. The setting of the docking cylinder allows the sliding column to insert into the docking cylinder when the mesh plate sinks, without affecting the sealing plate. During the vacuum pumping process, air is filled into the sealing ring through the air pump, causing the sealing ring to expand outwards, thereby sealing the gap between the hydraulic rod and the sealing plate, reducing the problem that the gap between the hydraulic rod and the sealing plate is too large due to continuous relative friction between the hydraulic rod and the sealing plate, thus affecting the vacuum pumping.

[0013] Preferably, a transfer component one is provided at one end of the directional conveyor belt close to the support plate. The transfer component one is used to move the packages to be detected above the support plate. A transfer component two is provided in the middle of the support plate. The transfer component two is used to transport the detected packages outwards. In order to make the whole detection process more convenient, the whole process is operated mechanically. The packages transported above the directional conveyor belt are stably moved above the support plate through the transfer component one. After the seal detection and extrusion detection are both completed, when the support plate rises above the detection tank, the sealed packages are then transferred outwards through the transfer component two, making the whole process without manual participation, and only one observer is needed at the receiving terminal of the optical probe.

[0014] Preferably, the transfer assembly includes two symmetrically arranged suspension plates. The suspension plates are fixed to one end of the directional conveyor belt near the testing tank. A drive motor is fixed to the outer side of the suspension plate near the top. An electric telescopic rod is fixed to the outer side of the output end of the drive motor. A claw arm is rotatably connected to the output end of the electric telescopic rod. As the directional conveyor belt transports the package forward, it moves between the two claw arms. The package is fixed by the extension of the electric telescopic rod. The two drive motors drive the two electric telescopic rods to rotate horizontally, thereby moving the package above the support plate. Then, the electric telescopic rods are shortened, leaving the package above the support plate. This achieves the effect of stably moving the package above the support plate.

[0015] Preferably, the transfer component two includes a flip-top plate, the middle of the support plate is hollow, the flip-top plate is located in the hollow part of the support plate, the inner edge of the support plate is connected to a drive motor two, the outer side of the output end of the drive motor two is fixedly connected to the edge of the flip-top plate, and an arc-shaped guide plate is fixedly connected to the side of the test can away from the directional conveyor belt. After the test is completed, the drive motor two is started to drive the flip-top plate to tilt downwards as a whole, so that the package slides down onto the guide plate under the action of gravity, thereby completing the removal work after the test.

[0016] Preferably, the claw arm is bent, and its outer surface is covered with an elastic compression layer. Two electric telescopic rods are fixedly connected inside the flip-top plate, with the ends of the electric telescopic rods protruding from the outside of the flip-top plate. Holes matching the electric telescopic rods are provided on the inner ring of the support plate. The bent shape of the claw arm better secures the product. After the flip-top plate returns to its original position, the electric telescopic rods extend, allowing the flip-top plate and support plate to be stably fixed. The beneficial effects of this invention are as follows: 1. The vacuum packaging testing equipment of this invention, through the setting of the testing tank, places the vacuum packaging to be tested into the testing tank, which is pre-filled with four-fifths water. Then, the hydraulic rod is activated to lower the mesh plate and sealing plate. The mesh plate has many holes on its surface. The mesh plate will press the vacuum packaging downwards, making it completely submerged in water. If the vacuum packaging has greater buoyancy, it will stick to the bottom of the mesh plate; if it has less buoyancy, it will sink to the bottom of the testing tank. As the sealing plate seals the testing tank, the negative pressure pump is activated to evacuate the inside of the testing tank. At this time, the inside of the testing tank is observed through the observation mirror. At this time, the external negative pressure is greater than the internal negative pressure of the vacuum packaging. If air bubbles are found leaking from the vacuum packaging, it means that the packaging is not sealed properly. If no air bubbles leak out, it means that the packaging is intact. Through this setting, the sealing performance of the vacuum packaging can be effectively tested.

[0017] 2. The vacuum packaging inspection equipment of the present invention, through the setting of a sorting machine, places batches of vacuum packaging on the main conveyor belt, moves them to the sorting machine, and then transfers the packaging one by one to the directional conveyor belt, so that the packaging can be directionally moved into the inspection tank for sealing inspection. Through this setting, the effect of batch transfer and inspection is achieved, effectively improving the inspection efficiency. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the detection component and sorting machine of the present invention; Figure 3 This is a perspective view of the testing tank and sealing plate of the present invention; Figure 4 This is a perspective view of the mesh plate and the flip cover plate of the present invention; Figure 5 This is a perspective view of the mesh plate of the present invention; Figure 6 This is a perspective view of the suspension plate and directional conveyor belt of the present invention.

[0020] In the diagram: 1. Main conveyor belt; 2. Sorting machine; 3. Detection assembly; 4. Directional conveyor belt; 5. Detection tank; 6. Guide plate; 7. Sealing plate; 8. Suspension plate; 9. Claw arm; 11. Hydraulic rod; 12. Negative pressure pump; 13. Observation mirror; 14. Support plate; 15. Sliding column; 16. Mesh plate; 17. Air pump; 18. Connecting cylinder; 19. Flip cover plate; 20. Electric telescopic rod one; 21. Sealing ring; 22. Electric telescopic rod two; 23. Blocking ring. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] like Figures 1 to 5 As shown in the figure, a vacuum packaging inspection device according to an embodiment of the present invention includes an inspection tank 5, the top surface of which is open, a hydraulic rod 11 is arranged above the inspection tank 5, a mesh plate 16 is fixedly connected to the bottom of the hydraulic rod 11, a sealing plate 7 is arranged above the mesh plate 16, a negative pressure pump 12 is fixedly connected to the top of the sealing plate 7, the absorption end of the negative pressure pump 12 is located at the bottom of the sealing plate 7, the bottom of the hydraulic rod 11 penetrates through the top of the sealing plate 7, a blocking ring 23 is fixedly connected to the outside of the output end of the hydraulic rod 11, the blocking ring 23 is located between the support plate 14 and the mesh plate 16, and a plurality of observation mirrors 13 are fixedly connected to the surface of the inspection tank 5. During operation, the vacuum packaging to be tested is placed into the testing tank 5, which is pre-filled with four-fifths water. Then, the hydraulic rod 11 is activated to lower the mesh plate 16 and the sealing plate 7. The mesh plate 16 has many mesh holes on its surface. The mesh plate 16 will press the vacuum packaging downwards, making it completely submerged in water. If the vacuum packaging has greater buoyancy, it will stick to the bottom of the mesh plate 16; if it has less buoyancy, it will sink to the bottom of the testing tank 5. As the sealing plate 7 seals the testing tank 5, the negative pressure pump 12 is activated to evacuate the inside of the testing tank 5. At this time, the inside of the testing tank 5 is observed through the observation mirror 13. At this time, the external negative pressure is greater than the internal negative pressure of the vacuum packaging. If air bubbles are found leaking from the vacuum packaging, it means that the packaging is not sealed properly. If no air bubbles leak out, it means that the packaging is intact. Through this setting, the sealing performance of the vacuum packaging can be effectively tested.

[0023] like Figures 1 to 5 As shown, the detection tank 5 and the hydraulic rod 11 form a detection assembly 3. There are four detection assemblies 3. A sorting machine 2 is arranged between the four detection assemblies 3. A directional conveyor belt 4 is connected between the sorting machine 2 and the detection assembly 3. A main conveyor belt 1 is arranged on the outside of the sorting machine 2. During factory production, a large number of vacuum packages need to be inspected. Using traditional methods for manual monitoring is too time-consuming, while sampling cannot guarantee the safety of food or other products in the vacuum packages. By setting up a sorting machine 2, the batch of vacuum packages are placed on the main conveyor belt 1 and moved to the sorting machine 2. The sorting machine 2 then transfers the packages one by one to the directional conveyor belt 4, allowing the packages to move directionally to the testing tank 5 for sealing inspection. This setup achieves the effect of batch transfer and inspection, effectively improving inspection efficiency.

[0024] like Figures 1 to 5 As shown, the top surface of the sorting machine 2 is hexagonal, and the four directional conveyor belts 4 are aligned with four of the adjacent sides of the sorting machine 2. The output end of the main conveyor belt 1 is flush with the other two sides of the sorting machine 2. During operation, the sorting machine 2's shape and the arrangement of the directional conveyor belts 4 enable products moving from the main conveyor belt 1 to the sorting machine 2 to be smoothly transferred to the directional conveyor belts 4. This simplifies the operation of the sorting machine 2, as it only requires switching in four directions to complete the work.

[0025] like Figures 1 to 5 As shown, two optical probes are connected to the inner wall of the detection tank 5. The two optical probes are symmetrically arranged. Multiple support frames are connected between the bottom of the mesh plate 16 and the hydraulic rod 11. Multiple vibration motors are fixed inside the mesh plate 16. During operation, in order to further reduce manual operations, the internal situation of the detection tank 5 is observed through an optical probe to monitor the occurrence of bubbles passing through the water surface inside the detection tank 5. After the situation in each detection tank 5 is observed by the optical probe, it is transmitted to the same terminal. Through the split-screen observation method, only one person needs to stay in front of the operation terminal to conduct the detection work on the entire detection device. The vibration motor is set to start when the mesh plate 16 slowly descends into the water, so that the mesh plate 16 can generate slight vibrations, which can disperse the bubbles at the bottom of the mesh plate 16 and make them move upward. When the vibration motor is turned off during the detection process, it can ensure that no interfering bubbles remain at the bottom of the mesh plate 16 during the preparation work, guaranteeing the accuracy of the detection process.

[0026] As Figures 1 to 5 shown, a support plate 14 for placing the products to be detected is provided below the mesh plate 16. Multiple sliding columns 15 are connected to the top of the support plate 14. The top of the sliding column 15 penetrates through the bottom edge of the mesh plate 16 and is slidably clamped with the mesh plate 16. An anti-detachment plate is fixedly connected to the top of the sliding column 15. During operation, the support plate 14 can be used to place vacuum packages. This not only prevents packages with low buoyancy from sinking to the bottom, reducing the problem of having to salvage them after the detection, but also the detection of vacuum packages requires the pressure resistance of the packages. After the seal integrity detection is completed, the hydraulic rod 11 is activated to continue descending. Since the support plate 14 and the mesh plate 16 are slidably connected by the sliding columns 15, when the support plate 14 touches the ground, the mesh plate 16 can continue to descend, causing the bottom of the mesh plate 16 to press against the product. By presetting the downward pressure of the hydraulic rod 11, if the product does not break under this pressure, it indicates that the product is qualified, and unqualified products will break and be observed. Through this setting, the comprehensiveness of the detection is effectively improved, and there is no need to replace the detection equipment. A water pipe is connected to the bottom of the detection tank 5 for replacing or increasing the internal water source.

[0027] As Figures 1 to 5 shown, multiple docking cylinders 18 adapted to the sliding columns 15 are fixedly connected to the top surface of the sealing plate 7. The bottom of the docking cylinder 18 is open. An annular sealing ring 21 is fixedly connected to the top of the sealing plate 7. The sealing ring 21 is sleeved outside the hydraulic rod 11. The inner ring of the sealing ring 21 is made of elastic rubber material, and the outer ring of the sealing ring 21 is made of solid material and is fixedly connected to the sealing plate 7. An air pump 17 connected to the sealing ring 21 is fixedly connected to the top of the sealing plate 7. During operation, the docking cylinder 18 is designed so that when the mesh plate 16 sinks, the rising slide column 15 will insert into the docking cylinder 18 without affecting the sealing plate 7. During the vacuuming process, air is filled into the sealing ring 21 by the air pump 17, causing the sealing ring 21 to expand outward, thereby sealing the gap between the hydraulic rod 11 and the sealing plate 7. This reduces the problem of the gap between the hydraulic rod 11 and the sealing plate 7 becoming too large due to the continuous relative friction of the hydraulic rod 11, which would affect the vacuuming process.

[0028] like Figures 1 to 5 As shown, a transfer component one is provided at one end of the directional conveyor belt 4 near the support plate 14. The transfer component one is used to move the package to be inspected to the top of the support plate 14. A transfer component two is provided in the middle of the support plate 14. The transfer component two is used to transport the inspected package outward. During operation, to make the entire testing process more convenient, a fully mechanical operation is used. The package transported from above the directional conveyor belt 4 is stably moved to above the support plate 14 by the transfer component one. After the sealing test and the compression test are completed, the sealed package is transferred outward by the transfer component two as the support plate 14 rises above the testing tank 5. The entire process does not require manual intervention, and only one observer is needed at the receiving terminal of the optical probe.

[0029] like Figures 2 to 6 As shown, the transfer assembly includes two symmetrically arranged suspension plates 8. The suspension plates 8 are fixed to one end of the directional conveyor belt 4 near the detection tank 5. A drive motor is fixed to the outer side of the suspension plate 8 near the top. An electric telescopic rod 22 is fixed to the outer side of the output end of the drive motor. A claw arm 9 is rotatably connected to the output end of the electric telescopic rod 22. During operation, as the directional conveyor belt 4 transports the package forward, it moves between the two claw arms 9. The package is then fixed by the extension of the electric telescopic rod 22. Two drive motors drive the two electric telescopic rods 22 to rotate horizontally, thereby moving the package above the support plate 14. Then, the electric telescopic rods 22 are shortened, leaving the package above the support plate 14. This achieves the effect of the package being stably moved above the support plate 14.

[0030] like Figures 3 to 5 As shown, the transfer component 2 includes a flip cover 19, the middle part of the support plate 14 is hollow, the flip cover 19 is located in the hollow part of the support plate 14, the inner edge of the support plate 14 is connected to a drive motor 2, the outer side of the output end of the drive motor 2 is fixedly connected to the edge of the flip cover 19, and an arc-shaped guide plate 6 is fixedly connected to the side of the detection tank 5 away from the directional conveyor belt 4. During operation, after the inspection is completed, the second drive motor is started to tilt the flip cover 19 downwards, allowing the package to slide down onto the guide plate 6 under gravity, thus completing the removal work after inspection.

[0031] like Figures 3 to 6 As shown, the claw arm 9 is bent and the outer surface of the claw arm 9 is covered with an elastic extrusion layer. Two electric telescopic rods 20 are fixed inside the flip cover plate 19. The ends of the electric telescopic rods 20 protrude outside the flip cover plate 19. The inner ring of the support plate 14 is provided with holes that are compatible with the electric telescopic rods 20. During operation, the bent shape of the claw arm 9 can better fix the product. After the flip cover 19 returns to its original position, the electric telescopic rod 20 is activated to extend, so that the flip cover 19 and the support plate 14 can be stably fixed together.

[0032] During operation, the vacuum packaging to be tested is placed into the testing tank 5, which is pre-filled with four-fifths water. Then, the hydraulic rod 11 is activated to drive the mesh plate 16 and the sealing plate 7 to sink. The mesh plate 16 has many mesh holes on its surface. The mesh plate 16 will press the vacuum packaging downwards, making it completely submerged in water. If the vacuum packaging has a large buoyancy, it will stick to the bottom of the mesh plate 16; if the buoyancy is small, it will sink to the bottom of the testing tank 5. As the sealing plate 7 seals the testing tank 5, the negative pressure pump 12 is activated to evacuate the inside of the testing tank 5. At this time, the inside of the testing tank 5 is observed through the observation mirror 13. At this time, the external negative pressure is greater than the internal negative pressure of the vacuum packaging. If air bubbles are found leaking from the vacuum packaging, it means that the packaging is not sealed properly. If no air bubbles leak out, it means that the packaging is intact. Through this setting, the sealing performance of the vacuum packaging can be effectively tested. By setting up the sorting machine 2, the batch-produced vacuum packaging is placed on the main conveyor belt 1 and moved to the sorting machine 2. The sorting machine 2 then transfers the packaging one by one to the directional conveyor belt 4, allowing the packaging to move directionally into the testing tank 5 for sealing testing. This setup achieves the effect of batch transfer and testing, effectively improving testing efficiency. By using the form of the sorting machine 2 and the arrangement of the directional conveyor belts 4, products moving from the main conveyor belt 1 to the sorting machine 2 can be smoothly transferred to the directional conveyor belts 4, and the operation of the sorting machine 2 is simplified, as it can complete the work by simply switching in four directions. In order to further reduce manual operations, the internal situation of the detection tank 5 is observed through an optical probe. After the situation in each detection tank 5 is observed by the optical probe, it is transmitted to the same terminal. Through the split-screen observation method, only one person needs to stay in front of the operation terminal to conduct the detection work on the entire detection device. The vibration motor is set to start when the mesh plate 16 slowly descends into the water. In this way, a slight vibration can be generated on the mesh plate 16, which can disperse the bubbles at the bottom of the mesh plate 16 and make them move upward. When the vibration motor is turned off during the detection process, it can ensure that there are no interfering bubbles remaining at the bottom of the mesh plate 16 during the preparation work, thus ensuring the accuracy of the detection process; The support plate 14 is provided to place the vacuum packaging. This not only prevents the packaging with low buoyancy from sinking to the bottom and reduces the problem of salvage required after the detection is completed, but also the detection of the vacuum packaging requires the pressure resistance of the packaging. After the seal detection is completed, the hydraulic rod 11 is started to continue sinking. Since the support plate 14 and the mesh plate 16 are slidably connected through the sliding column 15, when the support plate 14 touches the ground, the mesh plate 16 can continue to sink, and the bottom of the mesh plate 16 can squeeze the product. By presetting the downward pressure of the hydraulic rod 11, if the product is not broken under this force, it indicates that the product is qualified, and the unqualified products will break and be observed. Through this setting, the comprehensiveness of the detection is effectively improved, and there is no need to replace the detection equipment. A water pipe is connected to the bottom of the detection tank 5 for replacing or increasing the internal water source; The setting of the docking cylinder 18 allows the rising sliding column 15 to be inserted into the docking cylinder 18 when the mesh plate 16 sinks, without affecting the sealing plate 7. During the vacuum pumping process, air is filled into the sealing ring 21 through the air inflation pump 17 to make the sealing ring 21 expand outward, thereby sealing the gap between the hydraulic rod 11 and the sealing plate 7, reducing the problem that the gap between the hydraulic rod 11 and the sealing plate 7 is too large due to continuous relative friction between the hydraulic rod 11, which affects the vacuum pumping; In order to make the entire detection process more convenient, a fully mechanical operation method is used. Through the transfer component one, the packaging transported above the directional conveyor belt 4 is stably moved above the support plate 14. After the seal detection and the extrusion detection are both completed, when the support plate 14 rises above the detection tank 5, the sealed packaging is then transferred outward through the transfer component two, making the entire process without manual participation, and only one observer needs to be left at the receiving terminal of the optical probe; As the directional conveyor belt 4 transports the packaging forward, it will move between the two claw arms 9. The electric telescopic rod two 22 extends to fix the packaging. The two driving motors one drive the two electric telescopic rods two 22 to rotate horizontally, so that the packaging is moved above the support plate 14. Then, the electric telescopic rod two 22 is shortened to leave the packaging above the support plate 14, thus achieving the effect of stably moving the packaging above the support plate 14; After the inspection is completed, the second drive motor is started to tilt the flip cover 19 downwards, allowing the package to slide down onto the guide plate 6 under the action of gravity, thus completing the removal work after inspection. The bent shape of the claw arm 9 can better fix the product. After the flip cover 19 returns to its original position, the electric telescopic rod 20 is activated to extend, so that the flip cover 19 and the support plate 14 can be stably fixed together.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum packaging testing device, characterized in that: The test tank (5) has an open top surface. A hydraulic rod (11) is installed above the test tank (5). A mesh plate (16) is fixed to the bottom of the hydraulic rod (11). A sealing plate (7) is installed above the mesh plate (16). A negative pressure pump (12) is fixed to the top of the sealing plate (7). The absorption end of the negative pressure pump (12) is located at the bottom of the sealing plate (7). The bottom of the hydraulic rod (11) penetrates the top of the sealing plate (7). A blocking ring (23) is fixed to the outside of the output end of the hydraulic rod (11). The blocking ring (23) is located between the support plate (14) and the mesh plate (16). Multiple observation mirrors (13) are fixed to the surface of the test tank (5).

2. The vacuum packaging testing equipment according to claim 1, characterized in that: The detection tank (5) and the hydraulic rod (11) form a detection assembly (3). There are four detection assemblies (3). A sorting machine (2) is set between the four detection assemblies (3). A directional conveyor belt (4) is connected between the sorting machine (2) and the detection assembly (3). A main conveyor belt (1) is set on the outside of the sorting machine (2).

3. The vacuum packaging testing equipment according to claim 2, characterized in that: The top surface of the sorting machine (2) is hexagonal, and the four directional conveyor belts (4) are aligned with four of the adjacent sides of the sorting machine (2). The output end of the main conveyor belt (1) is flush with the other two sides of the sorting machine (2).

4. The vacuum packaging testing equipment according to claim 3, characterized in that: Two optical probes are connected to the inner wall of the testing tank (5). The two optical probes are arranged symmetrically. Multiple support frames are connected between the bottom of the mesh plate (16) and the hydraulic rod (11). Multiple vibration motors are fixed inside the mesh plate (16).

5. The vacuum packaging testing equipment according to claim 4, characterized in that: Below the mesh plate (16) is a support plate (14) for placing the detection generated. The support plate (14) is connected to the top of the mesh plate (16) by a plurality of sliding columns (15). The top of the sliding column (15) penetrates the bottom edge of the mesh plate (16) and is slidably engaged with the mesh plate (16). The top of the sliding column (15) is fixedly connected with an anti-detachment disc.

6. The vacuum packaging testing equipment according to claim 5, characterized in that: Multiple docking cylinders (18) adapted to slide columns (15) are fixedly connected to the top surface of the sealing plate (7). The bottom of the docking cylinder (18) is open. An annular sealing ring (21) is fixedly connected to the top of the sealing plate (7). The sealing ring (21) is sleeved on the outside of the hydraulic rod (11). The inner ring of the sealing ring (21) is made of elastic rubber material, and the outer ring of the sealing ring (21) is made of solid material. The outer ring is fixedly connected to the sealing plate (7). An air pump (17) connected to the sealing ring (21) is fixedly connected to the top of the sealing plate (7).

7. The vacuum packaging testing equipment according to claim 6, characterized in that: The directional conveyor belt (4) is provided with a transfer component one at one end near the support plate (14). The transfer component one is used to move the package to be inspected to the top of the support plate (14). The support plate (14) is provided with a transfer component two in the middle. The transfer component two is used to transport the inspected package outward.

8. The vacuum packaging testing equipment according to claim 7, characterized in that: The transfer assembly includes two symmetrically arranged suspension plates (8). The suspension plates (8) are fixed to one end of the directional conveyor belt (4) near the detection tank (5). A drive motor is fixed to the outside of the suspension plate (8) near the top. An electric telescopic rod (22) is fixed to the outside of the output end of the drive motor. A claw arm (9) is rotatably connected to the output end of the electric telescopic rod (22).

9. A vacuum packaging testing device according to claim 8, characterized in that: The transfer component two includes a flip cover (19), the middle part of the support plate (14) is hollow, the flip cover (19) is located in the hollow part of the support plate (14), the inner edge of the support plate (14) is connected to a drive motor two, the outer side of the output end of the drive motor two is fixed to the edge of the flip cover (19), and an arc-shaped guide plate (6) is fixed to the side of the detection tank (5) away from the directional conveyor belt (4).

10. A vacuum packaging testing device according to claim 9, characterized in that: The claw arm (9) is bent and the outer surface of the claw arm (9) is covered with an elastic extrusion layer. Two electric telescopic rods (20) are fixed inside the flip cover (19). The ends of the electric telescopic rods (20) protrude outside the flip cover (19). The inner ring of the support plate (14) is provided with holes that are compatible with the electric telescopic rods (20).

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