Puncture type barrel cap top breaking strength and expansion seal air tightness integrated detection device

Abstract

The present application belongs to the technical field of sealed cover production, and particularly relates to a puncture type barrel cover burst strength and expansion sealing air tightness integrated detection device. The present application is provided with a material loading assembly, a burst strength detection assembly and an air tightness detection assembly. The material loading assembly realizes multi-station barrel cover batch clamping and accurate transfer. The burst strength detection assembly can switch between multiple specifications of simulated smart columns, accurately simulate different water dispenser burst processes and detect burst mechanical properties. The air tightness detection assembly promotes the barrel cover ring-shaped gel to absorb water and expand to form a sealing surface through atomization and humidification, and then completes the air tightness performance verification through air pressure detection. The present application constructs a closed-loop detection process of burst simulation, humidification expansion and air tightness detection, can truly restore the actual use conditions of the product, realizes integrated and accurate detection of mechanical properties and sealing performance, and meets the quality inspection needs of large-scale production of new expansion sealing type puncture barrel covers.

Description

Technical Field

[0001] This invention belongs to the field of sealing cap manufacturing technology, specifically relating to an integrated testing device for the puncture resistance and expansion sealing airtightness of a barrel cap. Background Technology

[0002] Most puncture-type water dispenser lids have a puncture channel. The smart column inside the dispenser punctures the blockage of this channel, allowing water to flow out. However, the outer diameter of the smart column varies between different dispensers, resulting in a significant gap between the smart column and the puncture-type lid after puncture. This causes the water in the dispenser to lose its seal. If the water is not consumed within a certain time, dust and bacteria from the air can easily enter the dispenser through the gap. Over time, this can lead to the water spoiling and potentially causing microbial growth. Therefore, our company has designed an improved puncture-type lid that maintains a tight seal after the smart column punctures the lid.

[0003] The existing testing equipment for puncture-type barrel lid production has shortcomings. First, it cannot study whether the puncture strength of the improved drinking water barrel lid meets the design requirements for smart posts of different diameters. Second, it cannot test whether the airtightness of the sealing surface between the improved drinking water barrel lid and the smart post meets the design requirements after puncture.

[0004] In view of this, the inventors hope to optimize and improve the existing testing device for puncture-type barrel lid production. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned problems in the prior art and provide an integrated testing device for puncture resistance and expansion sealing airtightness of barrel lids.

[0006] To achieve the above-mentioned technical objectives and effects, the present invention is implemented through the following technical solution: This invention provides an integrated testing device for the burst strength and expansion sealing airtightness of a puncture-type barrel lid, comprising a material loading assembly, a burst strength testing assembly, and an airtightness testing assembly; The loading assembly is used for batch clamping of puncture-type barrel caps to be tested. The puncture-type barrel cap has a bottle neck screw connection area located on the top periphery and a puncture channel located at the top center. The lower part of the puncture channel is provided with an annular box. The inner cavity of the annular box is filled with a ring-shaped gel material that can absorb water and expand. An annular sealing gasket with evenly distributed vent holes is installed in the inner hole of the annular gel material. The inner cavity of the annular box is provided with an annular baffle that blocks the annular sealing gasket. A first annular tear slit is opened in the outer area where the annular baffle connects with the bottom plate of the annular box. The bottom plate of the annular box is located in the inner area of ​​the first annular tear slit as a tear piece. A second annular tear slit is opened at the connection between the annular baffle and the top plate of the annular box. The bursting strength testing component is located above the testing station and is used to simulate bursting structures of different specifications to test the bursting strength of puncture-type barrel lids. The airtightness testing component is located below the testing station and is used to test the airtightness of the humidified and sealing surfaces of the punctured barrel lid after it has been punctured. The sealing surface refers to the sealing surface formed by the circumferential gel material absorbing water and expanding, combined with the annular sealing gasket and the puncture structure.

[0007] Furthermore, in the aforementioned integrated testing device for puncture-type barrel lid burst strength and expansion sealing airtightness, the cyclic gel material is food-grade cross-linked sodium polyacrylate superabsorbent gel or food-grade polyglutamic acid hydrogel.

[0008] Furthermore, in the aforementioned integrated testing device for puncture-type barrel cap bursting strength and expansion sealing airtightness, the material loading assembly includes a material loading base plate, a rotary driver, a turntable, and a barrel mouth simulation block. The material loading base plate is supported by the rotary driver, and a plurality of barrel mouth simulation blocks that mate with the screw connection area of ​​the bottle mouth are installed circumferentially on the upper side of the turntable. The turntable has an air guide hole inside the barrel mouth simulation block, and an annular sealing groove is formed around the air guide hole on the lower side of the turntable.

[0009] Furthermore, in the above-mentioned integrated testing device for puncture resistance and expansion sealing airtightness of barrel lid, a protrusion is provided at the upper center of the material carrier plate, and a straightening protrusion is formed by a downward recess at the center of the turntable. A straightening component is installed in the straightening protrusion by means of a fastening screw.

[0010] Furthermore, in the aforementioned integrated testing device for puncture resistance and expansion seal airtightness of a barrel lid, the puncture resistance testing component includes a testing base plate, a lifting push rod, a grooved support frame, a support shaft, a cylindrical block, simulated smart columns, a pressure sensor, and a flipping drive mechanism. The grooved support frame is mounted on the testing base plate via the lifting push rod. A support shaft penetrating the grooved support frame is fixed at the center of the cylindrical block. Multiple simulated smart columns with different outer diameters are threaded around the cylindrical block. A pressure sensor is embedded in the outer end of each simulated smart column. A flipping drive mechanism for driving the support shaft to rotate is installed on the outer wall of the side plate of the grooved support frame.

[0011] Furthermore, in the above-mentioned integrated testing device for puncture resistance and expansion sealing airtightness of barrel lid, the flipping drive mechanism includes a flipping motor, a steering gear set, and a gear box. The flipping motor and the gear box are installed on the outer wall of the side plate of the slotted support. The output shaft of the flipping motor is connected to the support shaft via the steering gear set placed in the gear box.

[0012] Furthermore, in the aforementioned integrated testing device for puncture resistance and expansion seal airtightness of the barrel lid, the airtightness testing component includes an airtightness bracket, an electrically controlled three-way valve, an atomizing humidifier, an air pump, a hose, an air inlet hood, a pressure sensor, and a height adjustment push rod. The atomizing humidifier and the air pump are mounted on the airtightness bracket. The two air inlet branches of the electrically controlled three-way valve are respectively connected to the output ends of the atomizing humidifier and the air pump. The air outlet branch of the electrically controlled three-way valve is connected to the air inlet hood via a hose. A pressure sensor is embedded in the air inlet hood. A height adjustment push rod for raising and lowering the air inlet hood is installed on the lower side of the air inlet hood. The opening specifications of the air inlet hood are matched with the specifications of the annular sealing groove.

[0013] Furthermore, in the aforementioned integrated testing device for puncture resistance and expansion sealing airtightness of the barrel lid, the atomizing humidifier utilizes high-frequency oscillation technology to directly disperse liquid water into micron-sized fine particles, forming a low-temperature water mist.

[0014] Furthermore, the aforementioned integrated testing device for puncture resistance and expansion seal airtightness of the barrel lid also includes a controller, which is connected to the material loading assembly, the puncture resistance testing assembly, and the airtightness testing assembly, respectively.

[0015] Furthermore, the testing method of the aforementioned integrated testing device for puncture resistance and expansion seal airtightness of barrel lids includes the following steps: S1. The puncture-type barrel cap to be tested is matched and installed on the barrel mouth simulation block of the turntable through the bottle mouth screw connection area. The turntable is driven to rotate by the rotary driver to transfer the puncture-type barrel cap to be tested to the direct under the burst strength testing component. S2. The bursting strength detection component controls the selected simulated smart column to press down, simulating the smart column to burst the bottom plate of the annular box. The pressure sensor determines whether the bursting strength meets the design requirements. During the bursting process, the annular baffle falls off along with the tearing plate. S3. Use a humidifier to fill the air intake hood with moisture, and use a pressure sensor to control the filling speed to prevent excessive pressure from deforming and damaging the puncture-type barrel lid. The moisture is absorbed by the annular gel material through the vent holes of the annular sealing gasket. The annular gel material absorbs water and expands, pushing the annular sealing gasket tightly against the outer edge of the simulated smart column to achieve a seal. At this time, use an air pump to fill the air intake hood with air, and use a pressure sensor to detect pressure changes to determine whether the airtightness of the sealing surface between the puncture-type barrel lid and the simulated smart column meets the design requirements. S4. Reset the burst strength testing component and switch to a different simulated smart column; drive the turntable to rotate via the rotary driver to transfer the next puncture-type barrel lid to be tested to the underside of the burst strength testing component; repeat steps S2 and S3 until all testing operations are completed.

[0016] The beneficial effects of this invention are: 1. This invention innovatively designs an integrated testing structure for burst strength and expansion sealing airtightness, forming a complete closed-loop testing process of "burst simulation - humidification expansion - airtightness testing," which can perfectly match the structural characteristics of the improved bucket lid. The device first uses a multi-specification switchable simulation smart column to accurately simulate the bursting process of different water dispenser models, accurately detecting whether the bucket lid's burst strength meets the standard. Then, relying on the atomizing humidification structure, it accurately restores the water absorption environment, causing the annular gel material inside the bucket lid to absorb water and expand, forming a sealing surface in conjunction with the annular sealing gasket, realistically replicating the sealing and forming process in actual product use. Finally, the airtightness is verified through the air pressure testing structure, realizing integrated linkage testing of mechanical properties and sealing performance. The testing conditions are realistic and the data is accurate, which can effectively meet the mass production quality inspection requirements of the new expansion sealing puncture bucket lid.

[0017] 2. This invention's improved puncture-type bucket lid features a detachable tear-resistant structure and a water-absorbing, expanding sealing structure. Under normal conditions, the annular baffle effectively protects the internal gel material, preventing premature failure. When punctured by smart columns of different sizes, the annular gel material rapidly absorbs water and expands, adaptively fitting the outer wall of the smart column with the annular sealing gasket, efficiently filling the puncture gap. This device can accurately detect the compliance of the bucket lid's puncture strength and the airtightness reliability of the adaptive seal, fully verifying that the product effectively solves the defects of traditional bucket lids, such as air leakage, water ingress, bacterial growth, and water deterioration after puncture. It possesses excellent dustproof, antibacterial, and sealing protection capabilities, making it suitable for long-term water storage scenarios, significantly improving product practicality and safety.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a front sectional view of the puncture-type barrel lid in this invention; Figure 3 This is a partially enlarged schematic diagram of the puncture-type barrel lid in this invention; Figure 4 This is a schematic diagram of the material loading assembly in this invention; Figure 5 This is a schematic diagram of the puncture strength detection component in this invention; Figure 6 This is a schematic diagram of the airtightness detection component in this invention; Figure 7 This is a schematic diagram illustrating the principle of the bursting strength detection in this invention; Figure 8 This is a schematic diagram illustrating the principle of airtightness detection in this invention; In the attached diagram, the components represented by each number are as follows: 1-Material carrier assembly, 101-Material carrier base plate, 102-Rotary drive, 103-Turntable, 104-Barrel opening simulation block, 105-Air guide hole, 106-Annular sealing groove, 107-Protrusion, 108-Straightening protrusion box, 109-Straightening component, 110-Fastening screw; 2-Piercing strength detection component, 201-Detection base plate, 202-Lifting push rod, 203-Slotted support frame, 204-Supporting shaft, 205-Columnar carrier block, 206-Simulated smart column, 207-Pressure sensor, 208-Tilting motor, 209-Steering gear set; 3-Air tightness testing component, 301-Air tightness bracket, 302-Electrically controlled three-way valve, 303-Atomizing humidifier, 304-Air pump, 305-Hose, 306-Air inlet cover, 307-Air pressure sensor, 308-Height adjustment push rod; 4-Piercing type barrel cap, 401-Bottle mouth screw connection area, 402-Breakthrough channel, 403-Annular box, 404-Annular gel material, 405-Annular sealing gasket, 406-Ventilation hole, 407-Annular baffle, 408-Tear piece, 409-First annular tear seam, 410-Second annular tear seam. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figure 1As shown, this embodiment provides an integrated testing device for the bursting strength and expansion sealing airtightness of a puncture-type barrel lid, including a material loading assembly 1, a bursting strength testing assembly 2, and an airtightness testing assembly 3. The material loading assembly 1 is used to batch clamp the puncture-type barrel lids 4 to be tested. The bursting strength testing assembly 2 is located above the testing station and is used to simulate bursting structures of different specifications to test the bursting strength of the puncture-type barrel lids 4. The airtightness testing assembly 3 is located below the testing station and is used to humidify the puncture-type barrel lids 4 after bursting and to test the airtightness of the sealing surface. The sealing surface refers to the sealing surface formed by the annular gel material 404 absorbing water and expanding, combined with the annular sealing gasket 405 and the bursting structure.

[0023] like Figures 2-3 As shown, the puncture-type barrel cap 4 has a bottle mouth screw connection area 401 located on the outer periphery of the top and a puncture channel 402 located at the center of the top. The lower part of the puncture channel 402 is provided with an annular box 403. The inner cavity of the annular box 403 is filled with an annular gel material 404 that can absorb water and expand. An annular sealing gasket 405 with evenly distributed vent holes 406 is installed in the inner hole of the annular gel material 404. An annular baffle 407 is provided in the inner cavity of the annular box 403 to cover the annular sealing gasket 405. A first annular tear slit 409 is opened in the outer area where the annular baffle 407 is connected to the bottom plate of the annular box 403. The bottom plate of the annular box 403 is located in the inner area of ​​the first annular tear slit 409 as a tear piece 408. A second annular tear slit 410 is opened at the connection between the annular baffle 407 and the top plate of the annular box 403. In this embodiment, the cyclic gel material 404 is a food-grade cross-linked sodium polyacrylate superabsorbent gel or a food-grade polyglutamic acid hydrogel.

[0024] The bottle neck screw-in area 401 of the puncture-type bucket cap 4 is used for sealing and screwing it to the water bottle opening. The central puncture channel 402 is the core channel for water to pierce through the top of the smart column of the water dispenser. Under normal conditions, the annular baffle 407 shields the annular sealing gasket 405 and the annular gel material 404, preventing moisture and dust from entering prematurely and protecting the stability of the gel material. When the smart column is simulated to be pressed down and punctured, the force is concentrated on the tear piece 408. The first annular tear 409 and the second annular tear 410 break under the force, and the tear piece 408 and the annular baffle 407 fall off as a whole, exposing the internal annular gel material 404 and the annular sealing gasket 405. Subsequently, water mist permeates into the gel layer through the vent 406 of the annular sealing gasket 405. The food-grade superabsorbent gel quickly absorbs water and expands, radially compressing the annular sealing gasket 405, making the sealing gasket tightly fit the outer wall of the smart column, filling the assembly gap after puncture, and achieving sealing protection.

[0025] like Figure 4As shown, the material loading assembly 1 includes a material loading base plate 101, a rotary driver 102, a turntable 103, and a barrel mouth simulation block 104. The material loading base plate 101 is supported by the rotary driver 102 on the turntable 103. Multiple barrel mouth simulation blocks 104 that mate with the bottle mouth screw connection area 401 are installed circumferentially on the upper side of the turntable 103. A vent hole 105 is opened in the barrel mouth simulation block 104 on the turntable 103, and an annular sealing groove 106 is opened around the vent hole 105 on the lower side of the turntable 103.

[0026] In this embodiment, a protrusion 107 is provided at the upper center of the substrate 101, and a straightening protrusion 108 is formed by a downward recess at the center of the turntable 103. A straightening member 109 is fixed to the protrusion 107 by a fastening screw 110. The straightening member 109 is inserted into the straightening protrusion 108 to achieve center positioning of the turntable.

[0027] The material loading assembly 1 is a feeding and positioning mechanism, and the material loading base plate 101 is an integral support base to ensure the stability of equipment operation. The rotary drive 102 provides precise rotational power to the turntable 103, enabling intermittent transfer between multiple workstations. Multiple barrel opening simulation blocks 104 arranged circumferentially on the turntable 103 precisely match the screw connection area 401 of the barrel cap and bottle opening, achieving detachable and stable clamping to meet batch testing requirements. The air guide hole 105 inside the turntable 103 is a flow channel for water mist and detection airflow, and the lower annular sealing groove 106 can be precisely aligned and sealed with the air inlet hood 306 to prevent leakage of detection airflow and ensure the accuracy of airtightness testing. The central protrusion 107, the straightening protrusion 108, and the straightening component 109 cooperate with each other to perform center limiting and straightening of the turntable 103, eliminating the rotational offset error of the turntable and ensuring that it can be accurately aligned with the upper burst detection workstation and the lower airtightness testing workstation after each barrel cap transfer.

[0028] like Figure 5 As shown, the burst strength detection assembly 2 includes a detection base plate 201, a lifting push rod 202, a grooved support frame 203, a support shaft 204, a cylindrical block 205, simulated smart columns 206, a pressure sensor 207, and a flipping drive mechanism. The grooved support frame 203 is mounted on the detection base plate 201 via the lifting push rod 202. The support shaft 204, which passes through the grooved support frame 203, is fixed at the center of the cylindrical block 205. Multiple simulated smart columns 206 with different outer diameters are connected to the cylindrical block 205 along the circumferential thread. The pressure sensor 207 is embedded in the outer end of the simulated smart column 206. The flipping drive mechanism for driving the support shaft 204 to rotate is installed on the outer wall of the side plate of the grooved support frame 203.

[0029] In this embodiment, the flipping drive mechanism includes a flipping motor 208, a steering gear set 209, and a gear box. The flipping motor 208 and the gear box are installed on the outer wall of the side plate of the slotted support 203. The output shaft of the flipping motor 208 is connected to the support shaft 204 via the steering gear set 209 placed in the gear box.

[0030] In the bursting strength testing component 2, the testing base plate 201 serves as the component's fixed base. The lifting push rod 202 provides vertical lifting driving force, driving the channel-shaped support frame 203 to move up and down as a whole, completing the downward bursting and resetting actions. The support shaft 204 rotates in conjunction with the channel-shaped support frame 203, providing support for the rotational change of the cylindrical block 205. The flip motor 208 achieves power reversal and torque transmission through the steering gear set 209, driving the support shaft 204 to rotate precisely, driving the cylindrical block 205 to rotate circumferentially, and quickly switching between simulated smart columns 206 with different outer diameters. The simulated smart column 206 is used to realistically simulate the bursting structure of a water dispenser, pressing down to burst the bucket lid's bursting channel. The end-embedded pressure sensor 207 can collect the pressure peak and pressure change curves during the bursting process in real time, accurately determining whether the bucket lid's bursting strength meets the design threshold, and completing the mechanical performance test.

[0031] like Figure 6 As shown, the airtightness testing component 3 includes an airtightness bracket 301, an electrically controlled three-way valve 302, an atomizing humidifier 303, an air pump 304, a hose 305, an air intake hood 306, a pressure sensor 307, and a height adjustment push rod 308. The atomizing humidifier 303 and the air pump 304 are mounted on the airtightness bracket 301. The two air intake branches of the electrically controlled three-way valve 302 are respectively connected to the output ends of the atomizing humidifier 303 and the air pump 304. The air outlet branch of the electrically controlled three-way valve 302 is connected to the air intake hood 306 via the hose 305. The pressure sensor 307 is embedded in the air intake hood 306. A height adjustment push rod 308 for raising and lowering the air intake hood 306 is mounted on the lower side of the air intake hood 306. The opening specifications of the air intake hood 306 are matched with the specifications of the annular sealing groove 106.

[0032] In this embodiment, the atomizing humidifier 303 uses high-frequency oscillation technology to directly disperse liquid water into micron-sized fine particles, forming a low-temperature water mist.

[0033] The airtightness testing component 3's airtightness bracket 301 provides fixed support for each functional component, ensuring the stability of the component structure. The electrically controlled three-way valve 302 is a core component for switching operating conditions, precisely switching between the humidification and inflation testing paths to achieve an orderly process of humidification expansion followed by airtightness testing. The atomizing humidifier 303 uses high-frequency oscillation technology to disperse liquid water into micron-level low-temperature water mist, avoiding high-temperature damage and accurately simulating a natural water absorption environment. The water mist permeates into the inside of the lid through the hose 305, air inlet hood 306, and air guide hole 105, providing moisture for gel expansion. The inflation pump 304 provides stable testing air pressure, and the air pressure sensor 307 collects the air pressure value and air pressure decay rate within the testing chamber in real time to determine the airtightness of the sealing surface. The height adjustment push rod 308 precisely adjusts the height of the air inlet hood 306, ensuring a tight fit between the air inlet hood and the annular sealing groove 106 at the bottom of the turntable, forming a sealed testing chamber, preventing air leakage, and ensuring the accuracy of the airtightness testing data.

[0034] In this embodiment, a controller is also included, which is connected to the material loading assembly 1, the bursting strength detection assembly 2, and the airtightness detection assembly 3, respectively.

[0035] This embodiment also provides a method for testing the burst strength of a puncture-type barrel lid, including the following steps: S1. The puncture-type barrel cap 4 to be tested is matched and installed on the barrel mouth simulation block 104 of the turntable 103 through the bottle mouth screw connection area 401. The turntable 103 is driven to rotate by the rotary driver 102, and the puncture-type barrel cap 4 to be tested is transferred to the underside of the puncture strength testing component 2.

[0036] S2. The bursting strength detection component 2 controls the selected simulated smart column 206 to press down. The simulated smart column 206 bursts through the bottom plate of the annular box 403. The pressure sensor 207 determines whether the bursting strength meets the design requirements. During the bursting process, the annular baffle 407 detaches along with the tearing disc 408. Figure 7 As shown.

[0037] S3. Moisture is introduced into the air intake hood 306 using the atomizing humidifier 303. The filling speed is controlled by the pressure sensor 307 to prevent excessive pressure from deforming and damaging the puncture-type lid 4. The moisture is absorbed by the annular gel material 404 through the vent 406 of the annular sealing gasket 405. The annular gel material 404 absorbs water, expands, and pushes the annular sealing gasket 405 tightly against the periphery of the simulated smart column 206, achieving a seal. Figure 8 As shown. At this time, the air pump 304 is used to inflate the air intake cover 306, and the pressure sensor 307 detects the pressure change, thereby determining whether the airtightness of the sealing surface between the puncture-type barrel cover 4 and the simulated smart column 206 meets the design requirements.

[0038] S4. Reset the puncture strength detection component 2 and switch to a different simulated smart column 206; drive the turntable 103 to rotate through the rotary driver 102 to transfer the next puncture-type barrel cover 4 to be tested to the underside of the puncture strength detection component 2; repeat steps S2 and S3 until all detection operations are completed.

[0039] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for integrating puncture resistance testing of barrel lid burst strength and expansion seal airtightness testing, characterized in that, This includes a material loading assembly, a bursting strength testing assembly, and an airtightness testing assembly; The loading assembly is used for batch clamping of puncture-type barrel caps to be tested. The puncture-type barrel cap has a bottle neck screw connection area located on the top periphery and a puncture channel located at the top center. The lower part of the puncture channel is provided with an annular box. The inner cavity of the annular box is filled with a ring-shaped gel material that can absorb water and expand. An annular sealing gasket with evenly distributed vent holes is installed in the inner hole of the annular gel material. The inner cavity of the annular box is provided with an annular baffle that blocks the annular sealing gasket. A first annular tear slit is opened in the outer area where the annular baffle connects with the bottom plate of the annular box. The bottom plate of the annular box is located in the inner area of ​​the first annular tear slit as a tear piece. A second annular tear slit is opened at the connection between the annular baffle and the top plate of the annular box. The bursting strength detection component is located above the detection station and is used to simulate bursting structures of different specifications to detect the bursting strength of puncture-type barrel lids. The bursting strength detection component includes a detection base plate, a lifting push rod, a grooved support frame, a support shaft, a cylindrical block, simulated smart columns, a pressure sensor, and a flipping drive mechanism. The grooved support frame is mounted on the detection base plate via the lifting push rod. A support shaft that passes through the grooved support frame is fixed at the center of the cylindrical block. Multiple simulated smart columns with different outer diameters are connected to the cylindrical block along the circumferential thread. A pressure sensor is embedded in the outer end of each simulated smart column. A flipping drive mechanism for driving the support shaft to rotate is installed on the outer wall of the side plate of the grooved support frame. The airtightness testing component is located below the testing station and is used to test the airtightness of the humidified and sealing surfaces of the punctured barrel lid after it has been punctured. The sealing surface refers to the sealing surface formed by the circumferential gel material absorbing water and expanding, combined with the annular sealing gasket and the puncture structure.

2. The integrated testing device for puncture resistance and expansion sealing airtightness of a barrel lid according to claim 1, characterized in that, The cyclic gel material is food-grade cross-linked sodium polyacrylate superabsorbent gel or food-grade polyglutamic acid hydrogel.

3. The integrated testing device for puncture resistance and expansion sealing airtightness of a barrel lid according to claim 2, characterized in that, The material loading assembly includes a material loading base plate, a rotary driver, a turntable, and a barrel mouth simulation block. The material loading base plate is supported by the rotary driver, and a plurality of barrel mouth simulation blocks that mate with the screw connection area of ​​the bottle mouth are installed circumferentially on the upper side of the turntable. The turntable has an air guide hole inside the barrel mouth simulation block, and an annular sealing groove is formed around the air guide hole on the lower side of the turntable.

4. The integrated testing device for puncture resistance and expansion sealing airtightness of a barrel lid according to claim 3, characterized in that, A protrusion is provided at the center of the upper side of the material carrier substrate, and a straightening protrusion is formed by a downward indentation at the center of the turntable. A straightening component is installed in the straightening protrusion by means of a fastening screw.

5. The integrated testing device for puncture resistance and expansion sealing airtightness of a barrel lid according to claim 4, characterized in that, The flipping drive mechanism includes a flipping motor, a steering gear set, and a gear box. The flipping motor and the gear box are installed on the outer wall of the side plate of the slotted support frame. The output shaft of the flipping motor is connected to the support shaft via the steering gear set placed in the gear box.

6. The integrated testing device for puncture resistance and expansion sealing airtightness of a barrel lid according to claim 5, characterized in that, The airtightness testing component includes an airtightness bracket, an electrically controlled three-way valve, an atomizing humidifier, an air pump, a hose, an air intake hood, a pressure sensor, and a height adjustment push rod. The atomizing humidifier and the air pump are mounted on the airtightness bracket. The two air intake branches of the electrically controlled three-way valve are respectively connected to the output ends of the atomizing humidifier and the air pump. The air outlet branch of the electrically controlled three-way valve is connected to the air intake hood via a hose. A pressure sensor is embedded in the air intake hood. A height adjustment push rod for raising and lowering the air intake hood is installed on the lower side of the air intake hood. The opening specifications of the air intake hood are matched with the specifications of the annular sealing groove.

7. The integrated testing device for puncture resistance and expansion sealing airtightness of a barrel lid according to claim 6, characterized in that, The atomizing humidifier uses high-frequency oscillation technology to directly break down liquid water into micron-sized fine particles, forming a low-temperature water mist.

8. The integrated testing device for puncture resistance and expansion sealing airtightness of a barrel lid according to claim 7, characterized in that, It also includes a controller, which is connected to the material loading assembly, the bursting strength detection assembly, and the airtightness detection assembly, respectively.

9. The integrated testing device for puncture resistance and expansion sealing airtightness of a barrel lid according to claim 8, characterized in that, The detection method includes the following steps: S1. The puncture-type barrel cap to be tested is matched and installed on the barrel mouth simulation block of the turntable through the bottle mouth screw connection area. The turntable is driven to rotate by the rotary driver to transfer the puncture-type barrel cap to be tested to the direct under the burst strength testing component. S2. The bursting strength detection component controls the selected simulated smart column to press down, simulating the smart column to burst the bottom plate of the annular box. The pressure sensor determines whether the bursting strength meets the design requirements. During the bursting process, the annular baffle falls off along with the tearing plate. S3. Use a humidifier to fill the air intake hood with moisture, and use a pressure sensor to control the filling speed to prevent excessive pressure from deforming and damaging the puncture-type barrel lid. The moisture is absorbed by the annular gel material through the vent holes of the annular sealing gasket. The annular gel material absorbs water and expands, pushing the annular sealing gasket tightly against the outer edge of the simulated smart column to achieve a seal. At this time, use an air pump to fill the air intake hood with air, and use a pressure sensor to detect pressure changes to determine whether the airtightness of the sealing surface between the puncture-type barrel lid and the simulated smart column meets the design requirements. S4. Reset the burst strength testing component and switch to a different simulated smart column; drive the turntable to rotate via the rotary driver to transfer the next puncture-type barrel lid to be tested to the underside of the burst strength testing component; repeat steps S2 and S3 until all testing operations are completed.

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