Product automatic airtight detection device and detection method

Abstract

The application discloses a kind of product automatic air-tight detection device and detection method, it is related to air-tight detection technical field.The present application includes conveying device, the side of conveying device is provided with workbench, the bottom of workbench is fixedly connected with support column, the top of workbench is provided with processing groove.The present application is provided with product air-tight detection equipment, so that the vacuum state is formed between second air-tight pipe and vane pump box, when vane rotates to one end of U-shaped exhaust pipe, the volume between vane and vane pump box gradually decreases, gas is compressed and discharged from U-shaped exhaust pipe, when the gas discharged from the other end of vane pump box forms vacuum state between second air-tight pipe and vane pump box, the gas discharge gradually decreases until zero, at this time, the gas discharged from U-shaped exhaust pipe enters the inside of detection box, at this time, gas detector detects the gas fluctuation in the inside of detection box, and then the product air-tightness is accurately detected, and the product quality is ensured.

Description

Technical Field

[0001] This invention relates to the field of airtightness testing technology, specifically to an automatic airtightness testing device and method for products. Background Technology

[0002] A semi-automatic airtightness testing device (publication number: CN 104111148B) includes a frame, a rotating shaft, a conveyor belt, and a testing component. The frame has rotating grooves on both sides, each containing a bearing fixed within it. The rotating shaft has both ends fixed within the bearings and can rotate within them. The conveyor belt encloses the rotating shaft; its rotation causes the belt to move forward, transporting the product. The testing component is located at the rear end of the conveyor belt, which transports the product to it for airtightness testing. This invention features a simple structure, convenient operation, fast testing speed, and accurate and reliable test results.

[0003] The aforementioned application uses components such as the frame, rotating shaft, conveyor belt, and testing parts to work together, which makes it difficult to ensure that the testing parts are in a vacuum state for airtightness testing, resulting in inaccurate test results and a high possibility of deviation during the testing process. Therefore, we propose an automatic airtightness testing device and testing method for products. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an automatic airtightness testing device and method for products, solving the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic product airtightness testing device, comprising a transmission device, a worktable arranged on the side of the transmission device, a support column fixedly connected to the bottom of the worktable, a processing groove formed on the top of the worktable, and a product airtightness testing device arranged inside the processing groove; the product airtightness testing device includes a first airtight pipe, which is fixedly connected to the inside of the processing groove, a second airtight pipe fixedly connected to one end of the first airtight pipe, and a vane pump box fixedly connected to one end of the second airtight pipe, the outer surface of the vane pump box being fixedly... A motor is fixedly connected to the vane pump box. One end of the motor, which has an output shaft, passes through the side of the vane pump box. The output shaft of the motor is fixedly connected to a driving vane shaft. A driven vane shaft is rotatably connected to the inner side of the vane pump box. A vent is opened at one end of the vane pump box. A U-shaped exhaust pipe is fixedly connected to the other end of the vane pump box. A detection box is fixedly connected to the top of the vane pump box. A gas detector is fixedly connected to the inner side of the detection box. One end of the U-shaped exhaust pipe passes through the side of the detection box. An exhaust pipe is fixedly connected to the side of the detection box. A portable loading and unloading mechanism is installed inside the first airtight pipe.

[0006] According to the above technical solution, one end of the second airtight pipe, near the vane pump box, and the other end, near the vent, penetrate each other. An arc-shaped support plate is fixedly connected to the inner wall of the first airtight pipe. The function of the arc-shaped support plate is primarily to ensure that the product fits snugly against one end of the second airtight pipe when it is transported there.

[0007] According to the above technical solution, the first airtight tube, the second airtight tube, and the vent are interconnected. This design ensures that when the product airtightness testing equipment is working, there is a stable airflow between the first airtight tube, the second airtight tube, and the vent, which generates suction to adsorb the product for airtightness testing.

[0008] According to the above technical solution, the portable loading and unloading mechanism includes a slide groove, which is formed on the inner side of a first airtight tube. A first annular retaining plate is slidably connected inside the slide groove. A spring telescopic rod A is fixedly connected to one side of the first annular retaining plate, and a second annular retaining plate is fixedly connected to one end of the spring telescopic rod A. An L-shaped sliding groove is formed inside the second airtight tube, and a spring telescopic rod B is slidably connected inside the L-shaped sliding groove. A connecting rod is fixedly connected to one end of the spring telescopic rod B, and a return spring is fixedly connected to one end of the connecting rod. A spring fixing plate is fixedly connected to one end of the return spring, and the bottom of the spring fixing plate is fixedly connected to the top of the workbench. The design of the portable loading and unloading mechanism improves the stability of the product during airtightness testing and enables automatic pushing after the product has undergone airtightness testing, meeting the requirements of modern automation processes and making it suitable for mass production in large factories.

[0009] According to the above technical solution, the telescopic end of the spring telescopic rod B passes through one end of the L-shaped sliding groove, and the telescopic end of the spring telescopic rod B is located on the displacement trajectory of the first annular clamping plate. This design ensures that during the displacement of the first annular clamping plate, the telescopic end of the spring telescopic rod B can be squeezed, driving the spring telescopic rod B to slide and retract.

[0010] According to the above technical solution, the end of the connecting rod furthest from the return spring is slidably connected inside the L-shaped sliding groove. The two ends of the L-shaped sliding groove respectively penetrate one end of the second airtight tube and the circumference of the second airtight tube. The purpose of the return spring is to utilize its elasticity to automatically unload the product from inside the first airtight tube via the spring telescopic rod B after the product airtightness testing equipment has completed its test, thereby reducing manual intervention and improving work efficiency.

[0011] According to the above technical solution, a loading and unloading buffer mechanism is provided at one end of the driven blade shaft. The loading and unloading buffer mechanism includes a belt shaft A. One end of the belt shaft A is fixedly connected to one end of the driven blade shaft. The other end of the belt shaft A passes through the side of the blade pump box. A conveyor belt is provided at the end of the belt shaft A near the side of the blade pump box. A belt shaft B is connected to the end of the belt shaft A near the side of the blade pump box via the conveyor belt. A fixed plate is rotatably connected to one end of the belt shaft B. A small gear is fixedly connected to the circumference of the belt shaft B. A rack is slidably connected to the side of the fixed plate. The bottom of the small gear meshes with the top of the rack. A rectangular rod is fixedly connected to one end of the rack. A notch is opened on the side of the first airtight pipe. One end of the rectangular rod passes through the notch and is not connected to the notch. A sliding groove rod is fixedly connected to the end of the rectangular rod passing through the notch. An arc-shaped block A is slidably connected to the side of the sliding groove rod. An arc-shaped block B is fixedly connected to the side of the second annular plate and the first annular plate, respectively. The design of the loading and unloading buffer mechanism ensures that the product moves smoothly during loading and unloading, reducing the kinetic energy of the product during the testing process caused by the strong suction generated when the product airtightness testing equipment is working. This reduces the risk of damage to the product during airtightness testing and increases industrial output.

[0012] According to the above technical solution, a limiting spring is fixedly connected to one end of the arc-shaped block A, and one end of the limiting spring is fixedly connected to the inner side of the slide bar. The arc surface of the arc-shaped block B matches the arc surface of the arc-shaped block A. The main function of the limiting spring is to utilize its elasticity to reset the arc-shaped block A after it loses the squeezing force of the arc-shaped block B.

[0013] According to the above technical solution, multiple arc-shaped blocks A and limiting springs are arranged in a linear array on the inner side of the slide bar. A support seat is slidably connected to the bottom of the rack bar, and the bottom of the support seat is fixedly connected to the top of the worktable. The linear array of multiple arc-shaped blocks A increases the number of contacts with arc-shaped blocks B, thereby improving the buffering effect of the loading and unloading buffer mechanism.

[0014] According to the above technical solution, the detection method of the automatic airtightness detection device for products includes the following steps:

[0015] Step 1: The product is conveyed to the first airtight tube on the workbench via a transmission device;

[0016] Step 2: Fix the product inside the first airtight tube using the portable loading and unloading mechanism. Place the product on the top of the arc-shaped support plate and the side of the first circular clamping plate. Then release the spring telescopic rod A. Under the elastic potential energy of the spring telescopic rod A, the second circular clamping plate rebounds and clamps the other side of the product. The operation is simple and convenient for quickly fixing the product.

[0017] Step 3: Start the product airtightness testing equipment to test the airtightness of the bottled product. There is a stable airflow between the first airtight tube, the second airtight tube and the air inlet, which generates suction to adsorb the product for airtightness testing. The gas detector detects the gas fluctuation inside the test chamber.

[0018] Step 4: The loading and unloading buffer mechanism automatically activates when the product airtightness testing equipment switches working status to provide buffer for the bottled products during loading and unloading, reducing the high-speed state of product displacement under strong suction and ensuring smooth product movement.

[0019] Step 5: Reverse the motor to drive the loading and unloading buffer mechanism to reset, and drive the slide bar to reset so that it can be used again for the next bottled product airtightness test.

[0020] This invention provides an automatic airtightness testing device and method for products. It has the following beneficial effects:

[0021] (1) By setting up a product airtightness testing device, the present invention creates a vacuum state between the second airtight pipe and the vane pump box. When the vane rotates to one end of the U-shaped exhaust pipe, the volume between the vane and the vane pump box gradually decreases, the gas is compressed and discharged from the U-shaped exhaust pipe. When the gas discharged from the other end of the vane pump box creates a vacuum state between the second airtight pipe and the vane pump box, the gas discharge gradually decreases until it is zero. At this time, the gas discharged from the U-shaped exhaust pipe enters the interior of the testing box. At this time, the gas detector detects the gas fluctuation inside the testing box, thereby achieving accurate detection of product airtightness and ensuring product quality.

[0022] (2) By setting up a portable loading and unloading mechanism, after the product airtightness testing equipment finishes testing, the second airtight pipe, the first airtight pipe and the vent lose airflow suction. The elastic potential energy of the reset spring that is elastically connected to the connecting rod B will drive the connecting rod to rebound, thereby driving the spring telescopic rod B to rebound. The spring telescopic rod B rebounds and abuts against the side of the first circular plate to slide in the opposite direction. The first circular plate slides in the opposite direction and drives the shovel to slide in the opposite direction until it slides to the opening of the first airtight pipe for automatic unloading. The staff picks up the product for collection.

[0023] (3) By setting up the loading and unloading buffer mechanism, the first circular plate is displaced in the direction of the first airtight tube, and the arc block A is displaced in the direction of the first airtight tube. At this time, the displacement direction of the first circular plate is opposite to the horizontal displacement of the arc block A. The two move towards each other. The arc block B fixed on the side of the first circular plate and the second circular plate contacts the arc surface set on the side of multiple arc blocks A, thereby driving the arc block A to slide into the L-shaped sliding groove, which reduces the high-speed state of the product displacement under strong suction. Attached Figure Description

[0024] Figure 1 This is a three-dimensional appearance diagram of the entire invention;

[0025] Figure 2 This is a three-dimensional enlarged view of the side of the worktable of the present invention;

[0026] Figure 3 This is a three-dimensional side sectional view of the overall worktable of the present invention;

[0027] Figure 4 This is a three-dimensional top sectional view of the overall workbench top of the present invention;

[0028] Figure 5 This is a three-dimensional enlarged schematic diagram of the overall loading and unloading buffer mechanism of the present invention;

[0029] Figure 6 This is a three-dimensional enlarged schematic diagram of the first circular ring plate of the entire invention;

[0030] Figure 7 This invention as a whole Figure 2 A magnified three-dimensional diagram of A in the middle;

[0031] Figure 8 This invention as a whole Figure 4 A magnified three-dimensional diagram of B in the diagram;

[0032] Figure 9 This is a three-dimensional enlarged schematic diagram of the integral sliding groove rod of the present invention.

[0033] In the diagram: 1. Conveying device; 2. Workbench; 3. Support column; 4. Processing groove; 5. Product airtightness testing equipment; 51. First airtight pipe; 52. Second airtight pipe; 53. Vane pump box; 54. Motor; 55. Driven vane shaft; 56. Vent; 57. U-shaped exhaust pipe; 58. Testing box; 59. Gas detector; 510. Exhaust pipe; 511. Arc-shaped support plate; 512. Driven vane shaft; 6. Portable loading and unloading mechanism; 61. Slide; 62. First circular clamping plate; 63. 64. Spring telescopic rod A; 65. L-shaped sliding groove; 66. Spring telescopic rod B; 67. Connecting rod; 68. Return spring; 69. Spring fixing plate; 70. Second ring clamping plate; 71. Loading and unloading buffer mechanism; 72. Belt shaft A; 73. Conveyor belt; 74. Belt shaft B; 75. Fixing plate; 76. Pinion gear; 77. Rack rod; 78. Rectangular rod; 79. Notch; 70. Sliding groove rod; 710. Arc block A; 711. Arc block B; 712. Limiting spring; 713. Support base. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] Example 1: Please refer to Figures 1-9 One embodiment of the present invention is as follows: an automatic product airtightness testing device includes a transmission device 1, a workbench 2 is provided on the side of the transmission device 1, a support column 3 is fixedly connected to the bottom of the workbench 2, a processing groove 4 is provided on the top of the workbench 2, and a product airtightness testing device 5 is provided inside the processing groove 4; the product airtightness testing device 5 includes a first airtight pipe 51, the first airtight pipe 51 is fixedly connected to the inside of the processing groove 4, a second airtight pipe 52 is fixedly connected to one end of the first airtight pipe 51, a vane pump box 53 is fixedly connected to one end of the second airtight pipe 52, and a motor 54 is fixedly connected to the outer surface of the vane pump box 53. The motor 54 is designed with... One end of the output shaft passes through the side of the vane pump box 53. The output shaft of the motor 54 is fixedly connected to the driving vane shaft 512. The driven vane shaft 55 is rotatably connected to the inner side of the vane pump box 53. One end of the vane pump box 53 has a vent 56, and the other end of the vane pump box 53 is fixedly connected to a U-shaped exhaust pipe 57. The top of the vane pump box 53 is fixedly connected to a detection box 58. A gas detector 59 is fixedly connected to the inner side of the detection box 58. One end of the U-shaped exhaust pipe 57 passes through the side of the detection box 58, and an exhaust pipe 510 is fixedly connected to the side of the detection box 58. A portable loading and unloading mechanism 6 is installed inside the first airtight pipe 51. One end of the second airtight pipe 52, near the vane pump box 53, passes through the vent 56. An arc-shaped support plate 511 is fixedly connected to the inner wall of the first airtight pipe 51. The function of the arc-shaped support plate 511 is mainly to ensure that the product fits against one end of the second airtight pipe 52 when it is transported to the second airtight pipe 52. The first airtight tube 51, the second airtight tube 52, and the vent 56 are interconnected. This design ensures that when the product airtightness testing equipment 5 is working, there is a stable airflow between the first airtight tube 51, the second airtight tube 52, and the vent 56, which generates suction to adsorb the product for airtightness testing.

[0036] The portable loading and unloading mechanism 6 includes a slide 61, which is formed on the inner side of the first airtight tube 51. A first annular retaining plate 62 is slidably connected inside the slide 61. A spring telescopic rod A63 is fixedly connected to one side of the first annular retaining plate 62, and a second annular retaining plate 69 is fixedly connected to one end of the spring telescopic rod A63. An L-shaped sliding groove 64 is formed inside the second airtight tube 52, and a spring telescopic rod B65 is slidably connected inside the L-shaped sliding groove 64. A connecting rod 66 is fixedly connected to one end of the spring telescopic rod B65, and a return spring 67 is fixedly connected to one end of the connecting rod 66. A spring fixing plate 68 is fixedly connected to one end of the return spring 67, and the bottom of the spring fixing plate 68 is fixedly connected to the top of the workbench 2. The design of the portable loading and unloading mechanism 6 aims to improve the stability of the product during loading when it is being tested for airtightness, and to automatically push the product after the airtightness test, meeting the requirements of modern process automation and making it suitable for mass production in large factories. The telescopic end of the spring telescopic rod B65 passes through one end of the L-shaped sliding groove 64, and the telescopic end of the spring telescopic rod B65 is located on the displacement trajectory of the first annular clamping plate 62. This design ensures that during the displacement of the first annular clamping plate 62, the telescopic end of the spring telescopic rod B65 can be squeezed, driving the spring telescopic rod B65 to slide and retract. The end of the connecting rod 66 away from the return spring 67 is slidably connected inside the L-shaped sliding groove 64, and the two ends of the L-shaped sliding groove 64 respectively pass through one end of the second airtight tube 52 and the circumference of the second airtight tube 52. The function of the return spring 67 is to use its elasticity to drive the connecting rod 66 to automatically unload the product from inside the first airtight tube 51 through the spring telescopic rod B65 after the product airtightness testing equipment 5 has completed the test, thereby reducing manual intervention and improving work efficiency.

[0037] A loading / unloading buffer mechanism 7 is provided at one end of the driven blade shaft 55. The loading / unloading buffer mechanism 7 includes a belt shaft A71. One end of the belt shaft A71 is fixedly connected to one end of the driven blade shaft 55, and the other end of the belt shaft A71 passes through the side of the blade pump box 53. A conveyor belt 72 is provided at the end of the belt shaft A71 near the side of the blade pump box 53. A belt shaft B73 is driven and connected to the end of the belt shaft A71 near the side of the blade pump box 53 through the conveyor belt 72. A fixed plate 74 is rotatably connected to one end of the belt shaft B73, and a small... A rack rod 76 is slidably connected to the side of the gear 75 and the fixed plate 74. The bottom of the pinion 75 meshes with the top of the rack rod 76. A rectangular rod 77 is fixedly connected to one end of the rack rod 76. A notch 78 is opened on the side of the first airtight pipe 51. One end of the rectangular rod 77 passes through the notch 78 but is not connected to it. A sliding groove rod 79 is fixedly connected to the end of the rectangular rod 77 that passes through the notch 78. An arc-shaped block A710 is slidably connected to the side of the sliding groove rod 79. An arc-shaped block B711 is fixedly connected to the side of the second annular plate 69 and the first annular plate 62, respectively. The design of the loading and unloading buffer mechanism 7 ensures that the product moves smoothly during loading and unloading, reduces the kinetic energy of the product during the testing process caused by the strong suction generated when the product airtightness testing equipment 5 is working, thereby reducing the risk of damage to the product during airtightness testing and improving industrial output. Multiple arc-shaped blocks A710 and limiting springs 712 are arranged in a linear array on the inner side of the slide bar 79. A support base 713 is slidably connected to the bottom of the rack bar 76, and the bottom of the support base 713 is fixedly connected to the top of the worktable 2. The linear array of multiple arc-shaped blocks A710 increases the number of contacts with arc-shaped blocks B711, thereby improving the buffering effect of the loading and unloading buffer mechanism 7.

[0038] When using bottled products, after the packaging process, it is often necessary to test the sealing performance. At this time, the transmission device 1 is started to transport the product to one end of the first airtight tube 51. The staff takes out the product, stretches the spring telescopic rod A63 to widen the distance between the second ring plate 69 and the first ring plate 62, and then places the product on the top of the arc support plate 511 and the side of the first ring plate 62. Then the spring telescopic rod A63 is released. Under the elastic potential energy of the spring telescopic rod A63, the second ring plate 69 rebounds and locks the other side of the product. At this time, the feeding process is completed.

[0039] Next, the motor 54 is started to drive the active blade shaft 512 to rotate. The rotation of the active blade shaft 512 drives the driven blade shaft 55, which meshes with it, to rotate. The rotation of the driven blade shaft 55 causes the volume between the blades and the blade pump box 53 inside the blade pump box 53 to gradually increase, forming a partial vacuum. This draws gas in from one end of the vent 56. At this time, the stable airflow inside the second airtight pipe 52 and the first airtight pipe 51 generates a stable suction force that drives the product between the first annular clamping plate 62 and the second annular clamping plate 69 to move horizontally inside the first airtight pipe 51 until the product between the first annular clamping plate 62 and the second annular clamping plate 69 is moved to the opening of the second airtight pipe 52. At this time, one end of the first annular clamping plate 62 abuts against one end of the second airtight pipe 52, and the product is subjected to... When the suction force blocks the opening of the second airtight tube 52, and the sealed side is aligned with the opening of the second airtight tube 52, a vacuum state is formed between the second airtight tube 52 and the vane pump box 53. When the vane continues to rotate to one end of the U-shaped exhaust pipe 57, the volume between the vane and the vane pump box 53 gradually decreases, the gas is compressed and discharged from the U-shaped exhaust pipe 57. When the gas discharged from the other end of the vane pump box 53 forms a vacuum state between the second airtight tube 52 and the vane pump box 53, the gas discharge gradually decreases until it is zero. At this time, the gas discharged from the U-shaped exhaust pipe 57 enters the interior of the detection box 58. At this time, the gas detector 59 detects the gas fluctuation inside the detection box 58. After the detection is completed, the exhaust pipe 510 is opened to release the gas pressure inside the detection box 58.

[0040] It is worth noting that when the product itself has a sealing leak, one end of the first circular retaining plate 62 abuts against one end of the second airtight tube 52. The product is subjected to suction and blocks the opening of the second airtight tube 52. When the side of the seal is aligned with the opening of the second airtight tube 52, due to the sealing leak, no vacuum is formed inside the product. No vacuum is formed between the second airtight tube 52 and the vane pump box 53. At this time, the gas detector 59 detects that the gas inside the detection box 58 shows a linear upward trend, and the maximum value is the maximum volume value inside the detection box 58.

[0041] When there is no leakage in the product itself, one end of the first circular retaining plate 62 abuts against one end of the second airtight tube 52. The product is subjected to suction to block the opening of the second airtight tube 52. When the side of the package is aligned with the opening of the second airtight tube 52, since there is no leakage in the package, a vacuum state is formed inside the product. A vacuum state is formed between the second airtight tube 52 and the vane pump box 53. At this time, the gas detector 59 detects that the gas inside the detection box 58 first shows a linear upward trend. After rising to a certain amount, the gas detector 59 detects that the gas inside no longer rises.

[0042] When the product airtightness testing equipment 5 is in operation, as the first annular clamping plate 62 slides into the first airtight tube 51, it compresses the telescopic end of the spring telescopic rod B65. The telescopic end of the spring telescopic rod B65, under pressure, first retracts until it retracts into the fixed end of the spring telescopic rod B65. At this time, the spring telescopic rod B65 continues to be subjected to the pressure of the first annular clamping plate 62 and the suction force generated when the product airtightness testing equipment 5 is activated, causing it to slide into the L-shaped sliding groove 64 until the side of the first annular clamping plate 62 abuts against one end of the second airtight tube 52. After the product airtightness testing equipment 5 finishes testing, the second airtight pipe 52, the first airtight pipe 51 and the vent 56 lose airflow suction. The elastic potential energy of the spring telescopic rod B65, which is elastically connected to the reset spring 67 via the connecting rod 66, will drive the connecting rod 66 to rebound, thereby causing the spring telescopic rod B65 to rebound. The spring telescopic rod B65 rebounds and abuts against the side of the first annular plate 62 for reverse displacement sliding. The reverse displacement sliding of the first annular plate 62 drives the flattening reverse displacement sliding until it slides to the opening of the first airtight pipe 51 for automatic unloading. The staff picks up the product for collection.

[0043] When the portable loading / unloading mechanism 6 is in the loading state, the motor 54 drives the active blade shaft 512 to rotate forward. The forward rotation of the active blade shaft 512 drives the driven blade shaft 55, which meshes with it, to rotate in the opposite direction. The reverse rotation of the driven blade shaft 55 drives the belt shaft A71 to rotate in the opposite direction. The reverse rotation of the belt shaft A71 drives the belt shaft B73 to rotate in the opposite direction via the conveyor belt 72. The reverse rotation of the belt shaft B73 drives the pinion 75 to rotate in the opposite direction. The reverse rotation of the pinion 75 drives the rack rod 76 to move horizontally. The horizontal displacement of the rack rod 76 drives the rectangular rod 77 to move horizontally. The horizontal displacement of the rectangular rod 77 drives the slide bar 79 to move horizontally. The horizontal displacement of 79 causes the arc block A710 to move horizontally. At this time, the displacement direction of the first annular plate 62 is towards the inside of the first airtight tube 51, and the horizontal displacement direction of the arc block A710 is towards the outside of the first airtight tube 51. At this time, the displacement direction of the first annular plate 62 is opposite to the horizontal displacement of the arc block A710. The two move towards each other. The arc block B711 fixed on the side of the first annular plate 62 and the second annular plate 69 contacts the arc surface set on the side of multiple arc blocks A710, thereby causing the arc block A710 to slide into the L-shaped sliding groove 64, which reduces the high-speed state of the product displacement under strong suction.

[0044] When the portable loading and unloading mechanism 6 is in the unloading state, the displacement direction of the first annular plate 62 is towards the outside of the first airtight pipe 51, and the arc block A710 remains stationary. At this time, the arc block B711 fixed on the side of the first annular plate 62 and the second annular plate 69 contacts the arc surface set on the other side of the multiple arc blocks A710, thereby driving the arc block A710 to slide into the L-shaped sliding groove 64, reducing the high-speed state of the product displacement under elastic potential energy. When used next time, simply rotate the motor 54 in the opposite direction to drive the sliding groove rod 79 to reset for the next use.

[0045] Example 2: Please refer to Figures 1-9 Based on the above embodiments, a detection method for an automatic product airtightness detection device includes the following steps:

[0046] Step 1: The product is conveyed through the transmission device 1 into the first airtight pipe 51 on the workbench 2;

[0047] Step 2: The product is fixed inside the first airtight tube 51 by the portable loading and unloading mechanism 6. The product is placed on the top of the arc support plate 511 and the side of the first circular clamping plate 62. Then, the spring telescopic rod A63 is released. Under the elastic potential energy of the spring telescopic rod A63, the second circular clamping plate 69 rebounds and clamps the other side of the product. The operation is simple and convenient for quickly fixing the product.

[0048] Step 3: Start the product airtightness testing equipment 5 to test the airtightness of the bottled product. There is a stable airflow between the first airtight tube 51, the second airtight tube 52 and the air inlet 56, which generates suction to adsorb the product for airtightness testing. The gas detector 59 detects the gas fluctuation inside the test box 58.

[0049] Step 4: The loading and unloading buffer mechanism 7 automatically opens when the product airtightness detection equipment 5 switches working states to provide buffer for the bottled products during loading and unloading, reducing the high-speed state of product displacement under strong suction and ensuring smooth product movement.

[0050] Step 5: Reverse motor 54 to drive the loading and unloading buffer mechanism 7 to reset, and drive the slide bar 79 to reset so that it can be used again for the next bottled product air tightness test.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic airtightness testing device for products, comprising a transmission device (1), characterized in that: The transmission device (1) has a workbench (2) on its side, a support column (3) is fixedly connected to the bottom of the workbench (2), a processing groove (4) is opened on the top of the workbench (2), and a product airtightness testing device (5) is installed inside the processing groove (4). The product airtightness testing equipment (5) includes a first airtight pipe (51), which is fixedly connected to the inside of the processing tank (4). One end of the first airtight pipe (51) is fixedly connected to a second airtight pipe (52), and one end of the second airtight pipe (52) is fixedly connected to a vane pump box (53). A motor (54) is fixedly connected to the outer surface of the vane pump box (53). One end of the motor (54) with an output shaft passes through the side of the vane pump box (53). The output shaft of the motor (54) is fixedly connected to a drive vane shaft (512). The vane pump box (53) has... A driven blade shaft (55) is rotatably connected to the inner side of the blade pump box (53). A vent (56) is opened at one end of the blade pump box (53). A U-shaped exhaust pipe (57) is fixedly connected to the other end of the blade pump box (53). A detection box (58) is fixedly connected to the top of the blade pump box (53). A gas detector (59) is fixedly connected to the inner side of the detection box (58). One end of the U-shaped exhaust pipe (57) passes through the side of the detection box (58). An exhaust pipe (510) is fixedly connected to the side of the detection box (58). A portable loading and unloading mechanism (6) is provided inside the first airtight pipe (51). The portable loading and unloading mechanism (6) includes a chute (61), which is opened on the inner side of the first airtight tube (51). A first circular ring plate (62) is slidably connected inside the chute (61). A spring telescopic rod A (63) is fixedly connected to one side of the first circular ring plate (62). A second circular ring plate (69) is fixedly connected to one end of the spring telescopic rod A (63). An L-shaped sliding groove (64) is opened inside the second airtight tube (52). A spring telescopic rod B (65) is slidably connected inside the L-shaped sliding groove (64). A connecting rod (66) is fixedly connected to one end of the spring telescopic rod B (65). A return spring (67) is fixedly connected to one end of the connecting rod (66). A spring fixing plate (68) is fixedly connected to one end of the return spring (67). The bottom of the spring fixing plate (68) is fixedly connected to the top of the workbench (2). One end of the driven blade shaft (55) is provided with a loading and unloading buffer mechanism (7). The loading and unloading buffer mechanism (7) includes a belt shaft A (71). One end of the belt shaft A (71) is fixedly connected to one end of the driven blade shaft (55). The other end of the belt shaft A (71) passes through the side of the blade pump box (53). A conveyor belt (72) is provided at the end of the belt shaft A (71) near the side of the blade pump box (53). The end of the belt shaft A (71) near the side of the blade pump box (53) is connected to a belt shaft B (73) via the conveyor belt (72). A fixed plate (74) is rotatably connected to one end of the belt shaft B (73). A small gear is fixedly connected to the circumferential surface of the belt shaft B (73). (75), a rack rod (76) is slidably connected to the side of the fixed plate (74), the bottom of the pinion (75) meshes with the top of the rack rod (76), a rectangular rod (77) is fixedly connected to one end of the rack rod (76), a notch (78) is opened on the side of the first airtight tube (51), one end of the rectangular rod (77) passes through the notch (78) and has no connection with the notch (78), a sliding groove rod (79) is fixedly connected to one end of the rectangular rod (77) that passes through the notch (78), an arc block A (710) is slidably connected to the side of the sliding groove rod (79), and an arc block B (711) is fixedly connected to the side of the second annular plate (69) and the first annular plate (62).

2. The automatic airtightness testing device for a product according to claim 1, characterized in that: One end of the second airtight pipe (52) is close to the end of the vane pump box (53) and the end of the air inlet (56) are connected to each other. An arc-shaped support plate (511) is fixedly connected to the inner wall of the first airtight pipe (51).

3. The automatic airtightness testing device for a product according to claim 2, characterized in that: The first airtight pipe (51), the second airtight pipe (52), and the vent (56) are interconnected.

4. The automatic airtightness testing device for a product according to claim 3, characterized in that: The telescopic end of the spring telescopic rod B (65) passes through one end of the L-shaped sliding groove (64), and the telescopic end of the spring telescopic rod B (65) is located on the displacement trajectory of the first circular plate (62).

5. The automatic airtightness testing device for a product according to claim 4, characterized in that: The end of the connecting rod (66) away from the reset spring (67) is slidably connected inside the L-shaped sliding groove (64), and the two ends of the L-shaped sliding groove (64) respectively pass through one end of the second airtight tube (52) and the circumferential surface of the second airtight tube (52).

6. The automatic airtightness testing device for a product according to claim 5, characterized in that: One end of the arc-shaped block A (710) is fixedly connected to a limiting spring (712), and one end of the limiting spring (712) is fixedly connected to the inner side of the slide bar (79). The arc surface of the arc-shaped block B (711) matches the arc surface of the arc-shaped block A (710).

7. The automatic airtightness testing device for a product according to claim 6, characterized in that: Multiple arc-shaped blocks A (710) and limiting springs (712) are provided and are arranged in a linear array on the inner side of the slide bar (79). The bottom of the rack bar (76) is slidably connected to a support seat (713), and the bottom of the support seat (713) is fixedly connected to the top of the worktable (2).

8. A detection method for an automatic airtightness testing device for a product, characterized in that: The automatic airtightness testing device for a product according to any one of claims 1 to 7 further includes the following steps: Step 1: The product is conveyed through the transmission device (1) into the first airtight pipe (51) on the workbench (2); Step 2: Fix the product inside the first airtight tube (51) using the portable loading and unloading mechanism (6). Place the product on the top of the arc support plate (511) and the side of the first circular clamping plate 62. Then release the spring telescopic rod A (63). Under the elastic potential energy of the spring telescopic rod A (63), the second circular clamping plate (69) rebounds and clamps the other side of the product. The operation is simple and convenient for quickly fixing the product. Step 3: Start the product airtightness testing equipment (5) to test the airtightness of the bottled product. There is a stable airflow between the first airtight tube (51), the second airtight tube (52) and the air inlet (56), which generates suction to adsorb the product for airtightness testing. The gas detector (59) detects the gas fluctuation inside the test box (58). Step 4: The loading and unloading buffer mechanism (7) automatically opens when the product airtightness testing equipment (5) switches working status to provide buffer for bottled products during loading and unloading, reducing the high-speed state of product displacement under strong suction and ensuring smooth product movement. Step 5: Reverse the motor (54) to drive the loading and unloading buffer mechanism (7) to reset, and drive the slide bar (79) to reset so that it can be used again for the next bottled product air tightness test.

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