Product automatic airtightness detection device and detection method

Abstract

The invention discloses an automatic airtightness detection device and method for a product, and relates to the technical field of airtightness detection. The device comprises a conveying device, a workbench is arranged on the side face of the conveying device, a supporting column is fixedly connected to the bottom of the workbench, and a machining groove is formed in the top of the workbench. Through the arrangement of the product airtightness detection equipment, a vacuum state is formed 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 is gradually reduced, and gas is compressed and exhausted from the U-shaped exhaust pipe; when the gas exhausted from the other end of the vane pump box forms a vacuum state between the second airtight pipe and the vane pump box, the gas exhaust amount is gradually reduced to zero, at the moment, the gas exhausted from the U-shaped exhaust pipe enters the detection box, and at the moment, the gas detector detects the fluctuation condition of the gas in the detection box; therefore, the air tightness of the product is accurately detected, and the product quality is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of airtight detection, and particularly to an automatic airtight detection device and method for products. Background Art

[0002] According to a semi-automatic airtightness detection device announced (publication number: CN 104111148B), it includes a frame, a rotating shaft, a conveyor belt and a detection member. Among them, rotating grooves are respectively opened on both sides of the above-mentioned frame, bearings are arranged in the rotating grooves, and the bearings are fixed in the rotating grooves; both ends of the above-mentioned rotating shaft are respectively fixed in the bearings and can rotate in the bearings; the above-mentioned conveyor belt wraps the rotating shaft inside, and the rotating shaft rotates to make the conveyor belt move forward so as to convey the product forward; the above-mentioned detection member is arranged at the rear end of the conveyor belt, and the conveyor belt conveys the product to the detection member for airtightness detection. The structure of the present invention is simple, the operation is convenient, the detection speed is fast, and the detection result is accurate and reliable.

[0003] In the above application, through the mutual cooperation of components such as the frame, the rotating shaft, the conveyor belt and the detection member, it is difficult to ensure that the detection member performs airtightness detection in a vacuum state, resulting in inaccurate detection results and a greater possibility of deviation during the detection process, which needs to be improved. Therefore, we have proposed an automatic airtight detection device and method for products. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides an automatic airtight detection device and method for products, which solves the problems raised in the above background art.

[0005] To achieve the above purposes, the present invention is realized through the following technical solutions: An automatic airtight detection device for products, including a transmission device, a workbench is arranged on the side of the transmission device, a support column is fixedly connected to the bottom of the workbench, a processing groove is opened on the top of the workbench, and a product airtight detection device is arranged inside the processing groove; the product airtight detection device includes a first airtight tube, the first airtight tube is fixedly connected inside the processing groove, one end of the first airtight tube is fixedly connected to a second airtight tube, one end of the second airtight tube is fixedly connected to a vane pump box, a motor is fixedly connected to the outer surface of the vane pump box, one end of the motor with an output shaft penetrates the side surface 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 surface of the vane pump box, an air 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 surface of the detection box, one end of the U-shaped exhaust pipe penetrates the side surface of the detection box, an exhaust pipe is fixedly connected to the side surface of the detection box, and a portable loading and unloading mechanism is arranged inside the first airtight tube.

[0006] According to the above technical solution, one end of the second airtight tube near one end of the vane pump box penetrates through one end of the ventilation port, and an arc-shaped support plate is fixedly connected to the inner wall of the first airtight tube. The function of the arc-shaped support plate is mainly to enable the product to fit against one end of the second airtight tube when the product is transported to the second airtight tube.

[0007] According to the above technical solution, the first airtight tube, the second airtight tube and the ventilation port are interconnected. This design ensures that when the product airtightness detection device is working, there is a stable air flow between the first airtight tube, the second airtight tube and the ventilation port, thereby generating suction to adsorb the product for airtightness detection.

[0008] According to the above technical solution, the portable loading and unloading mechanism includes a chute, the chute is opened on the inner side of the first airtight tube, a first circular ring clamping plate is slidably connected inside the chute, one side of the first circular ring clamping plate is fixedly connected with a spring telescopic rod A, one end of the spring telescopic rod A is fixedly connected with a second circular ring clamping plate, an L-shaped sliding groove is opened inside the second airtight tube, a spring telescopic rod B is slidably connected inside the L-shaped sliding groove, one end of the spring telescopic rod B is fixedly connected with a connecting rod, one end of the connecting rod is fixedly connected with a return spring, one end of the return spring is fixedly connected with a spring fixing plate, 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, on the one hand, improves the stability of the product during loading when performing airtightness detection. On the other hand, after the product is airtightness detected, it automatically pushes the material, meeting the requirements of modern processes for the automation process and being suitable for large-scale factories for quantitative production.

[0009] According to the above technical solution, the telescopic end of the spring telescopic rod B penetrates through one end of the L-shaped sliding groove, and the telescopic end of the spring telescopic rod B is located on the displacement track of the first circular ring clamping plate. This design ensures that during the displacement of the first circular ring clamping plate, it can squeeze the telescopic end of the spring telescopic rod B, driving the spring telescopic rod B to slide and contract.

[0010] According to the above technical solution, the end of the connecting rod away from the return spring is slidably connected inside the L-shaped sliding groove, and both ends of the L-shaped sliding groove penetrate through one end of the second airtight tube and the circumferential surface of the second airtight tube respectively. The function of the return spring is to utilize its elasticity to drive the connecting rod to automatically unload the product from the inside of the first airtight tube through the spring telescopic rod B after the product airtightness detection device finishes detection, 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 penetrates through the side surface of the vane pump housing. A conveyor belt is provided at one end of the belt shaft A close to the side surface of the vane pump housing. One end of the belt shaft A close to the side surface of the vane pump housing is drivingly connected to a belt shaft B through the conveyor belt. One end of the belt shaft B is rotatably connected to a fixing plate. A small gear is fixedly connected to the circumferential surface of the belt shaft B. A rack bar is slidably connected to the side surface of the fixing plate. The bottom of the small gear meshes with the top of the rack bar. One end of the rack bar is fixedly connected to a rectangular bar. A notch is provided on the side surface of the first airtight tube. One end of the rectangular bar penetrates through the notch and has no connection relationship with the notch. One end of the rectangular bar penetrating through the notch is fixedly connected to a chute rod. An arc-shaped block A is slidably connected to the side surface of the chute rod. An arc-shaped block B is fixedly connected to the side surfaces of the second circular ring clamping plate and the first circular ring clamping plate respectively. The design of the loading and unloading buffer mechanism ensures the smooth movement of the product during loading and unloading, reduces the kinetic energy of the product during detection caused by the strong suction generated when the product airtight detection equipment works, thereby reducing the damage risk of the product during airtightness detection and improving the industrial output value.

[0012] According to the above technical solution, one end of the arc-shaped block A is fixedly connected to a limiting spring. One end of the limiting spring is fixedly connected to the inner side surface of the chute rod. 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 the arc-shaped block A loses the extrusion force of the arc-shaped block B.

[0013] According to the above technical solution, a plurality of arc-shaped blocks A and limiting springs are provided and are linearly arrayed on the inner side surface of the chute rod. A support seat is slidably connected to the bottom of the rack bar. The bottom of the support seat is fixedly connected to the top of the workbench. The linear array of a plurality of arc-shaped blocks A further increases the contact times with the arc-shaped block B, thereby improving the buffering effect of the loading and unloading buffer mechanism.

[0014] According to the above technical solution, a detection method for an automatic airtight detection device for a product includes the following steps:

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

[0016] Step 2: The product is fixed inside the first airtight tube through a portable loading and unloading mechanism. The product is placed on the top of the arc-shaped support plate and the side surface of the first circular ring clamping plate. Subsequently, the spring telescopic rod A is released. Under the elastic potential energy of the spring telescopic rod A, the second circular ring 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. A stable airflow is generated between the first airtight tube, the second airtight tube and the vent to generate suction, which adsorbs the product for airtightness testing. The gas detector detects the gas fluctuation inside the test box.

[0018] Step 4: The loading and unloading buffer mechanism automatically opens when the product airtightness detection equipment switches to a working state to provide buffering for the bottled products in loading and unloading, thereby reducing the high-speed state of product displacement under strong suction and ensuring smooth movement of the product;

[0019] Step 5: Reverse the motor, drive the loading and unloading buffer mechanism to reset, drive the slide rod to reset, and then it can be used next time, and the air tightness test of the next bottled product can be carried out.

[0020] The present invention provides a product automatic airtightness detection device and detection method. It has the following beneficial effects:

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

[0022] (2) The present invention sets a portable loading and unloading mechanism, so that after the product airtightness detection equipment finishes the detection, the second airtight tube, the first airtight tube and the vent lose the airflow suction force, and the elastic potential energy of the reset spring elastically connected to the spring telescopic rod B through the connecting rod drives the connecting rod to rebound, thereby driving the spring telescopic rod B to rebound, and the spring telescopic rod B rebounds against the side of the first circular clamping plate to slide in the reverse direction, and the reverse displacement sliding of the first circular clamping plate drives the shovel to slide in the reverse direction until it slides to the opening of the first airtight tube for automatic unloading, and the staff picks up the product for collection.

[0023] (3) The present invention sets a loading and unloading buffer mechanism so that the displacement direction of the first circular clamping plate is toward the inside of the first airtight tube, and the horizontal displacement direction of the arc block A is toward the outside of the first airtight tube. At this time, the displacement direction of the first circular clamping plate is opposite to the horizontal displacement of the arc block A, and the two are displaced toward each other. The arc blocks B fixed on the sides of the first circular clamping plate and the second circular clamping plate contact the arc surfaces set on the sides of multiple arc blocks A, thereby driving the arc block A to slide toward the inside of the L-shaped sliding groove, thereby reducing the high-speed state of the product displacement under strong suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional external view schematic diagram of the whole of the present invention;

[0025] Figure 2 It is a three-dimensional enlarged side view schematic diagram of the workbench of the whole of the present invention;

[0026] Figure 3 It is a three-dimensional side sectional view schematic diagram of the workbench of the whole of the present invention;

[0027] Figure 4 It is a three-dimensional top sectional view schematic diagram of the workbench of the whole of the present invention;

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

[0029] Figure 6 It is a three-dimensional enlarged view schematic diagram of the first circular ring clamping plate of the whole of the present invention;

[0030] Figure 7 For the whole of the present invention Figure 2 A three-dimensional enlarged view schematic diagram of A in;

[0031] Figure 8 For the whole of the present invention Figure 4 A three-dimensional enlarged view schematic diagram of B in;

[0032] Figure 9 It is a three-dimensional enlarged view schematic diagram of the chute rod of the whole of the present invention.

[0033] In the figure: 1. Transmission device; 2. Workbench; 3. Support column; 4. Processing groove; 5. Product airtight detection equipment; 51. First airtight pipe; 52. Second airtight pipe; 53. Vane pump box; 54. Motor; 55. Driven vane shaft; 56. Ventilation port; 57. U-shaped exhaust pipe; 58. Detection box; 59. Gas detector; 510. Exhaust pipe; 511. Arc-shaped support plate; 512. Active vane shaft; 6. Portable loading and unloading mechanism; 61. Chute; 62. First circular ring clamping plate; 63. Spring telescopic rod A; 64. L-shaped sliding groove; 65. Spring telescopic rod B; 66. Connecting rod; 67. Return spring; 68. Spring fixing plate; 69. Second circular ring clamping plate; 7. Loading and unloading buffer mechanism; 71. Belt shaft A; 72. Transmission belt; 73. Belt shaft B; 74. Fixed plate; 75. Small gear; 76. Rack bar; 77. Rectangular rod; 78. Notch; 79. Chute rod; 710. Arc-shaped block A; 711. Arc-shaped block B; 712. Limit spring; 713. Support seat. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0035] Embodiment 1: Please refer to Figures 1-9 , an embodiment of the present invention is: An automatic airtight detection device for products includes a transmission device 1. A workbench 2 is arranged 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 opened on the top of the workbench 2. A product airtight detection device 5 is arranged inside the processing groove 4; The product airtight detection device 5 includes a first airtight pipe 51, the first airtight pipe 51 is fixedly connected inside the processing groove 4. One end of the first airtight pipe 51 is fixedly connected to a second airtight pipe 52. 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 output shaft of the motor 54 penetrates through the side of the vane pump box 53. The output shaft of the motor 54 is fixedly connected to a driving vane shaft 512. A driven vane shaft 55 is rotatably connected to the inner side surface of the vane pump box 53. An air vent 56 is opened at one end of the vane pump box 53. A U-shaped exhaust pipe 57 is fixedly connected to the other end of the vane pump box 53. A detection box 58 is fixedly connected to the top of the vane pump box 53. A gas detector 59 is fixedly connected to the inner side surface of the detection box 58. One end of the U-shaped exhaust pipe 57 penetrates 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 arranged inside the first airtight pipe 51. One end of the second airtight pipe 52 near one end of the vane pump box 53 penetrates through one end of the air 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 enable the product to fit one end of the second airtight pipe 52 when the product is transported to the second airtight pipe 52. The first airtight pipe 51, the second airtight pipe 52 and the air vent 56 are interconnected. Such a design ensures that when the product airtight detection device 5 is working, there is a stable air flow between the first airtight pipe 51, the second airtight pipe 52 and the air vent 56, thereby generating suction to adsorb the product for airtightness detection.

[0036] The portable loading and unloading mechanism 6 includes a sliding groove 61 which is opened on the inner side of the first airtight tube 51. A first circular ring clamping plate 62 is slidably connected inside the sliding groove 61. One side of the first circular ring clamping plate 62 is fixedly connected to a spring telescopic rod A 63. One end of the spring telescopic rod A 63 is fixedly connected to a second circular ring clamping plate 69. 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. One end of the spring telescopic rod B 65 is fixedly connected to a connecting rod 66. One end of the connecting rod 66 is fixedly connected to a return spring 67. One end of the return spring 67 is fixedly connected to a spring fixing plate 68. 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, on the one hand, is to improve the stability of the product during loading when performing airtightness detection. On the other hand, after the product is airtightness detected, it performs automatic pushing of the material, meeting the requirements of modern processes for the automation process and being applicable to large factories for quantitative production. The telescopic end of the spring telescopic rod B 65 penetrates 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 track of the first circular ring clamping plate 62. Such a design ensures that during the displacement of the first circular ring clamping plate 62, it can squeeze the telescopic end of the spring telescopic rod B 65, driving the spring telescopic rod B 65 to slide and contract. The end of the connecting rod 66 away from the return spring 67 is slidably connected inside the L-shaped sliding groove 64. The two ends of the L-shaped sliding groove 64 respectively penetrate through one end of the second airtight tube 52 and the circumferential surface of the second airtight tube 52. The function of the return spring 67 is to utilize its elasticity to drive the connecting rod 66 to automatically unload the product from the inside of the first airtight tube 51 through the spring telescopic rod B 65 after the product airtightness detection device 5 finishes detection, thereby reducing manual intervention and improving work efficiency.

[0037] One end of the driven vane shaft 55 is provided with a loading and unloading buffer mechanism 7. The loading and 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 vane shaft 55. The other end of the belt shaft A71 penetrates through the side surface of the vane pump box 53. One end of the belt shaft A71 close to the side surface of the vane pump box 53 is provided with a conveyor belt 72. One end of the belt shaft A71 close to the side surface of the vane pump box 53 is drivingly connected to a belt shaft B73 through the conveyor belt 72. One end of the belt shaft B73 is rotatably connected to a fixing plate 74. A small gear 75 is fixedly connected to the circumferential surface of the belt shaft B73. A rack bar 76 is slidably connected to the side surface of the fixing plate 74. The bottom of the small gear 75 meshes with the top of the rack bar 76. One end of the rack bar 76 is fixedly connected to a rectangular bar 77. A notch 78 is formed in the side surface of the first airtight tube 51. One end of the rectangular bar 77 penetrates through the notch 78 and has no connection relationship with the notch 78. One end of the rectangular bar 77 penetrating through the notch 78 is fixedly connected to a chute bar 79. An arc-shaped block A710 is slidably connected to the side surface of the chute bar 79. An arc-shaped block B711 is fixedly connected to the side surfaces of the second circular ring clamping plate 69 and the first circular ring clamping plate 62 respectively. The design of the loading and unloading buffer mechanism 7 ensures the smooth movement of the product during the loading and unloading process, reduces the kinetic energy of the product during the detection process caused by the strong suction generated when the product airtight detection device 5 works, thereby reducing the damage risk of the product during the airtightness detection and improving the industrial output value. A plurality of arc-shaped blocks A710 and limiting springs 712 are provided and are linearly arranged on the inner side surface of the chute bar 79. The bottom of the rack bar 76 is slidably connected to a support base 713. The bottom of the support base 713 is fixedly connected to the top of the workbench 2. The plurality of arc-shaped blocks A710 are linearly arranged, thereby increasing the contact times with the arc-shaped blocks B711, and further improving the buffering effect of the loading and unloading buffer mechanism 7.

[0038] During use, after the bottled product is encapsulated, it is often necessary to detect the sealing performance of the seal. At this time, the transmission device 1 is started to convey the product to one end of the first airtight tube 51. The staff takes out the product and first stretches the spring telescopic rod A63 to expand the distance between the second circular ring clamping plate 69 and the first circular ring clamping plate 62, and then places the product on the top of the arc-shaped support plate 511 and the side surface of the first circular ring clamping plate 62. Subsequently, the spring telescopic rod A63 is released. Under the elastic potential energy of the spring telescopic rod A63, the second circular ring clamping plate 69 rebounds and clamps the other side of the product. At this time, the loading process is completed;

[0039] Next, start the motor 54 to drive the rotation of the active vane shaft 512. The rotation of the active vane shaft 512 drives the rotation of the driven vane shaft 55 engaged with it. The rotation of the driven vane shaft 55 causes the volume between the internal vane of the vane pump housing 53 and the vane pump housing 53 to gradually increase, forming a local vacuum, thereby sucking gas from one end of the vent port 56. At this time, the stable air flow inside the second airtight tube 52 and the first airtight tube 51 generates a stable suction force to drive the product between the first circular ring clamping plate 62 and the second circular ring clamping plate 69 to perform a horizontal displacement inside the first airtight tube 51 until the product between the first circular ring clamping plate 62 and the second circular ring clamping plate 69 is displaced to the opening of the second airtight tube 52. At this time, one end of the first circular ring clamping plate 62 abuts against one end of the second airtight tube 52, and the product is blocked by the suction force to block the opening of the second airtight tube 52. Align one side of the package with the opening of the second airtight tube 52. At this time, a vacuum state is formed between the second airtight tube 52 and the vane pump housing 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 housing 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 housing 53 forms a vacuum state between the second airtight tube 52 and the vane pump housing 53, the gas discharge volume gradually decreases until it becomes zero. At this time, the gas discharged from the U-shaped exhaust pipe 57 enters the inside of the detection box 58. At this time, the gas detector 59 detects the gas fluctuation situation inside the detection box 58. After the detection is completed, open the exhaust pipe 510 to release the gas pressure inside the detection box 58.

[0040] It should be noted that when there is a leakage in the package of the product itself, one end of the first circular ring clamping plate 62 abuts against one end of the second airtight tube 52, and the product is blocked by the suction force to block the opening of the second airtight tube 52. When one side of the package is aligned with the opening of the second airtight tube 52, due to the leakage in the package, a vacuum state is not formed inside the product, and a vacuum state is not formed between the second airtight tube 52 and the vane pump housing 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 package of the product itself, one end of the first circular ring clamping plate 62 abuts against one end of the second airtight tube 52, and the product is blocked by the suction force to block the opening of the second airtight tube 52. When one side of the package is aligned with the opening of the second airtight tube 52, due to the non-leakage of the package, a vacuum state is formed inside the product, and a vacuum state is formed between the second airtight tube 52 and the vane pump housing 53. At this time, the gas detector 59 detects that the gas inside the detection box 58 first shows a linear upward trend, and after rising to a certain amount, the gas detector 59 detects that the internal gas no longer rises.

[0042] When the product airtight detection device 5 is in operation, when the first circular ring clamping plate 62 slides into the first airtight tube 51, it squeezes the telescopic end of the spring telescopic rod B65. The telescopic end of the spring telescopic rod B65 is squeezed and first contracts itself. When the telescopic end contracts into the fixed end of the spring telescopic rod B65, at this time, the spring telescopic rod B65 continuously receives the pressure from the first circular ring clamping plate 62 and the suction force generated when the product airtight detection device 5 starts, and slides into the L-shaped sliding groove 64 by itself until the side of the first circular ring clamping plate 62 abuts one end of the second airtight tube 52. When the product airtight detection device 5 finishes the detection, the second airtight tube 52, the first airtight tube 51 and the ventilation port 56 lose the air flow suction force. The elastic potential energy of the return spring 67 elastically connected to the connecting rod 66 by the spring telescopic rod B65 will drive the connecting rod 66 to rebound, and then drive the spring telescopic rod B65 to rebound. The spring telescopic rod B65 rebounds and abuts the side of the first circular ring clamping plate 62 for reverse displacement sliding. The reverse displacement sliding of the first circular ring clamping plate 62 drives the spade to slide in reverse displacement until it slides to the opening of the first airtight tube 51 for automatic blanking, and the staff picks up the product for collection.

[0043] When the portable loading and 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 meshed with it to rotate in reverse. The reverse rotation of the driven blade shaft 55 drives the belt shaft A71 to rotate in reverse. The reverse rotation of the belt shaft A71 drives the belt shaft B73 to rotate in reverse through the transmission belt 72. The reverse rotation of the belt shaft B73 drives the small gear 75 to rotate in reverse. The reverse rotation of the small gear 75 drives the rack bar 76 to displace horizontally. The horizontal displacement of the rack bar 76 drives the rectangular bar 77 to displace horizontally. The horizontal displacement of the rectangular bar 77 drives the chute bar 79 to displace horizontally. The horizontal displacement of the chute bar 79 drives the arc-shaped block A710 to displace horizontally. At this time, the displacement direction of the first circular ring clamping plate 62 is to displace towards the inside of the first airtight tube 51, and the horizontal displacement direction of the arc-shaped block A710 is to displace towards the outside of the first airtight tube 51. At this time, the displacement direction of the first circular ring clamping plate 62 is opposite to the horizontal displacement of the arc-shaped block A710, and the two displace towards each other. The arc-shaped block B711 fixed to the sides of the first circular ring clamping plate 62 and the second circular ring clamping plate 69 contacts the arc surfaces arranged on the sides of multiple arc-shaped blocks A710, and then drives the arc-shaped block A710 to slide into the L-shaped sliding groove 64, weakening the high-speed state of the product displacement under the strong suction force;

[0044] When the portable loading and unloading mechanism 6 is in the unloading state, at this time, the displacement direction of the first circular ring clamping plate 62 is towards the outside of the first airtight tube 51, and the arc-shaped block A710 remains stationary. At this time, the arc-shaped block B711 fixed to the side of the first circular ring clamping plate 62 and the second circular ring clamping plate 69 contacts the arc surface provided on the other side of the plurality of arc-shaped blocks A710, thereby driving the arc-shaped block A710 to slide into the L-shaped sliding groove 64, weakening the high-speed state of the product displacement under elastic potential energy. Next time it is used, just rotate the motor 54 in the reverse direction to drive the sliding groove rod 79 to reset for the next use.

[0045] Embodiment 2: Please refer to Figures 1-9 , on the basis of the above embodiment, a detection method for an automatic airtight detection device for a product includes the following steps:

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

[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-shaped support plate 511 and the side of the first circular ring clamping plate 62. Subsequently, the spring telescopic rod A63 is released. Under the elastic potential energy of the spring telescopic rod A63, the second circular ring clamping plate 69 rebounds to clamp the other side of the product, which is simple to operate and convenient for quickly fixing the product;

[0048] Step 3: Start the product airtight detection device 5 to perform airtightness detection on the bottled product. There is a stable air flow between the first airtight tube 51, the second airtight tube 52 and the ventilation port 56, thereby generating suction to adsorb the product for airtightness detection. The gas detector 59 detects the gas fluctuation situation inside the detection box 58;

[0049] Step 4: The loading and unloading buffer mechanism 7 is automatically activated when the working state of the product airtight detection device 5 is switched to provide buffering for the bottled product during loading and unloading, weakening the high-speed state of the product displacement under strong suction and ensuring the stable movement of the product;

[0050] Step 5: Reverse the motor 54 to drive the loading and unloading buffer mechanism 7 to reset and drive the sliding groove rod 79 to reset for the next use to perform airtightness detection on the next bottled product.

[0051] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A product automatic airtightness detection device, comprising a transmission device (1), characterized in that: A workbench (2) is arranged 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 opened on the top of the workbench (2); and a product airtightness detection device (5) is arranged inside the processing groove (4); The product airtightness detection device (5) comprises a first airtight tube (51), the first airtight tube (51) is fixedly connected to the inside of the processing groove (4), one end of the first airtight tube (51) is fixedly connected to the second airtight tube (52), one end of the second airtight tube (52) is fixedly connected to the vane pump box (53), the outer surface of the vane pump box (53) is fixedly connected to a motor (54), one end of the motor (54) provided 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 the active vane shaft (512), and the vane pump box (53) is fixedly connected to the second vane pump box (53). The inner side surface is rotatably connected to a driven blade shaft (55); one end of the blade pump box (53) is provided with a vent (56); the other end of the blade pump box (53) is fixedly connected to a U-shaped exhaust pipe (57); the top of the blade pump box (53) is fixedly connected to a detection box (58); the inner side surface of the detection box (58) is fixedly connected to a gas detector (59); one end of the U-shaped exhaust pipe (57) passes through the side of the detection box (58); the side of the detection box (58) is fixedly connected to an exhaust pipe (510); and a portable loading and unloading mechanism (6) is provided inside the first airtight tube (51).

2. The automatic airtightness detection device for products according to claim 1, characterized in that: One end of the second airtight tube (52) close to the blade pump box (53) and one end of the vent (56) penetrate each other, and an arc-shaped support plate (511) is fixedly connected to the inner wall of the first airtight tube (51).

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

4. The automatic airtightness detection device for products according to claim 3 is characterized in that: The portable loading and unloading mechanism (6) comprises a slide groove (61), wherein the slide groove (61) is provided on the inner side surface of the first airtight tube (51), and a first circular clamping plate (62) is slidably connected inside the slide groove (61), and a spring telescopic rod A (63) is fixedly connected to one side of the first circular clamping plate (62), and one end of the spring telescopic rod A (63) is fixedly connected to a second circular clamping plate (69), and an L-shaped slide groove (64) is provided inside the second airtight tube (52), and a spring telescopic rod B (65) is slidably connected inside the L-shaped slide groove (64), and one end of the spring telescopic rod B (65) is fixedly connected to a connecting rod (66), and one end of the connecting rod (66) is fixedly connected to a return spring (67), and one end of the return spring (67) is fixedly connected to a spring fixing plate (68), and the bottom of the spring fixing plate (68) is fixedly connected to the top of the workbench (2).

5. The automatic airtightness detection device for products according to claim 4, 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 track of the first circular clamping plate (62).

6. The automatic airtightness detection device for products according to claim 5, characterized in that: One end of the connecting rod (66) away from the return spring (67) is slidably connected inside the L-shaped sliding groove (64), and both ends of the L-shaped sliding groove (64) respectively penetrate one end of the second airtight tube (52) and the circumferential surface of the second airtight tube (52).

7. The automatic airtightness detection device for products according to claim 6, characterized in that: A loading and unloading buffer mechanism (7) is provided at one end of the driven blade shaft (55), and the loading and unloading buffer mechanism (7) comprises 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 transmission belt (72) is provided at one end of the belt shaft A (71) close to the side of the blade pump box (53), and the end of the belt shaft A (71) close to the side of the blade pump box (53) is transmission-connected to a belt shaft B (73) through the transmission belt (72), one end of the belt shaft B (73) is rotationally connected to a fixing plate (74), and a pinion 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) is meshed with the top of the rack rod (76), one end of the rack rod (76) is fixedly connected to a rectangular rod (77), 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), one end of the rectangular rod (77) passing through the notch (78) is fixedly connected to a slide rod (79), the side of the slide rod (79) is slidably connected to an arc block A (710), and the sides of the second annular clamping plate (69) and the first annular clamping plate (62) are respectively fixedly connected to an arc block B (711).

8. The automatic airtightness detection device for products according to claim 7, characterized in that: One end of the arc block A (710) is fixedly connected to a limit spring (712), one end of the limit spring (712) is fixedly connected to the inner side surface of the slide slot rod (79), and the arc surface of the arc block B (711) matches the arc surface of the arc block A (710).

9. The automatic airtightness detection device for products according to claim 8, characterized in that: A plurality of arc-shaped blocks A (710) and limit springs (712) are provided along a linear array on the inner side surface of the slide slot rod (79); the bottom of the rack rod (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 workbench (2).

10. A detection method for a product automatic airtightness detection device, characterized in that: The automatic airtightness detection device for a product according to any one of claims 1 to 9 further comprises the following steps: Step 1: The product is transported to a first airtight tube (51) on a workbench (2) via a transport device (1); Step 2: The product is fixed inside the first airtight tube (51) by means of the portable loading and unloading mechanism (6), and the product is placed on the top of the arc-shaped support plate (511) and the side of the first circular clamping plate 62. Then, the spring telescopic rod A (63) is released, and the second circular clamping plate (69) rebounds and clamps the other side of the product under the elastic potential energy of the spring telescopic rod A (63). The operation is simple and convenient for quickly fixing the product. Step 3: Start the product airtightness detection device (5) to perform an airtightness detection on the bottled product. A stable airflow is generated between the first airtight tube (51), the second airtight tube (52) and the vent (56), thereby generating suction to adsorb the product for airtightness detection. The gas detector (59) detects the fluctuation of the gas inside the detection box (58); Step 4: The loading and unloading buffer mechanism (7) is automatically turned on when the working state of the product airtightness detection device (5) is switched to provide buffering for the bottled products being loaded and unloaded, thereby reducing the high-speed state of the product displacement under the strong suction force and ensuring the smooth movement of the product; Step 5: Reverse the motor (54), drive the loading and unloading buffer mechanism (7) to reset, and drive the slide rod (79) to reset so that the product can be used next time and the air tightness test of the next bottled product can be carried out.

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