A device for detecting the production quality of a nitrile glove

Abstract

The application relates to the technical field of glove detection, and particularly discloses a production quality detection device for butyronitrile gloves. The application comprises a base, an air pump and an air pipe, and further comprises an outer pressing assembly arranged on the outer side of the end of the air pipe away from the base, and an inner supporting piece mounted on the end of the air pipe and located on the inner side of the outer pressing assembly. The outer pressing assembly comprises an outer pressing ring slidably sleeved on the outer side of the air pipe, a first air channel is formed in the inner side of the outer pressing ring, and an air bag is fixedly connected to the side of the upper end of the outer pressing ring close to the inner supporting piece. The upper end of the outer pressing ring is in an inclined state towards the inner supporting piece. The inner supporting piece, the outer pressing assembly, the air bag and the pressure-resisting piece are cooperatively arranged, the technical problem that the traditional detection device only adopts single-side outer clamping and has poor fixing stability is effectively solved, the firmness and flatness of the glove clamping are greatly improved, a stable basic condition is provided for the air tightness detection, and the detection error caused by unstable fixing is effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of glove testing technology, and more specifically to a production quality testing device for nitrile gloves. Background Technology

[0002] Nitrile gloves, with their excellent oil resistance, abrasion resistance, aging resistance, and hypoallergenic properties, are widely used in high-precision, high-cleanliness industries such as medical protective equipment, biomedicine, electronics manufacturing, and food processing. The sealing and integrity of finished products are core indicators of product quality, directly affecting the effectiveness of protection during use and the safety of the clean production environment. Therefore, in the large-scale production of nitrile gloves, airtightness testing is an indispensable and crucial step in screening finished product quality. It can effectively detect unqualified products with defects such as micropores, minor cracks, and seam leaks, ensuring a high pass rate for outgoing products.

[0003] Currently, most existing nitrile glove airtightness testing devices employ a single external clamping and fixing structure. During testing, the glove cuff edge is clamped and limited on one side only, and then compressed air is introduced into the glove. Pressure changes are used to determine if leakage defects exist. While this traditional fixing method is simple in structure and convenient to operate, it has significant technical shortcomings in actual production and testing. Relying solely on a single external clamping method results in poor glove fixation. Nitrile gloves are soft and highly elastic; during inflation testing, the glove expands and shifts under internal air pressure, easily leading to problems such as cuff loosening, misalignment, and wrinkling. This not only causes incomplete sealing and gas leakage during testing, leading to false positives and false negatives, significantly reducing testing accuracy, but also causes some qualified gloves to show false leakage results due to fixation misalignment, increasing product loss due to false detections. This severely restricts the accuracy and production efficiency of nitrile glove quality testing.

[0004] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the Invention

[0005] The purpose of this invention is to provide a production quality testing device for nitrile gloves that can effectively solve the above-mentioned technical problems.

[0006] To achieve the objectives of this invention, the following technical solution is adopted: A quality inspection device for the production of nitrile gloves includes: a base, an air pump, and an air tube, and further includes: An external pressure assembly is located on the outer side of the end of the air tube away from the base; An inner support member is installed at the end of the air tube and is located inside the external pressure assembly; The external pressure assembly includes an external pressure ring that is slidably sleeved on the outside of the trachea. The external pressure ring has a first airway inside. An airbag is fixed to the upper end of the external pressure ring near the inner support. The upper end of the outer pressure ring is inclined towards the direction of the inner support member, and there is a gap between the inner side of the top of the outer pressure ring and the outer side of the bottom of the inner support member.

[0007] Preferably, a pull ring is fixedly connected to the inner end of the outer pressure ring, the pull ring is slidably sleeved on the outside of the air tube, and a locking pin is movably engaged at the end of the pull ring away from the inner support member.

[0008] Preferably, a folded corrugated pipe is fixedly connected to the top end of the external pressure ring near the trachea, and the top end of the folded corrugated pipe is fixedly connected to the trachea. The inner cavity of the folded bellows is connected to the first airway.

[0009] Preferably, the outer pressure ring and the air tube are elastically connected by a second spring, which is movably sleeved on the outside of the folded bellows. The contact ends of the outer pressure ring and the inner support are staggered and both are arc-shaped.

[0010] Preferably, a pressure-blocking member is fixedly connected inside the outer pressure ring; The pressing component includes a mounting plate fixed to the inner wall of the outer pressure ring. An arc-shaped abutment is rotatably connected to one end of the mounting plate away from the outer pressure ring. A silicone film is fixed to the top of the arc-shaped abutment. The middle area of ​​the silicone film is movably fitted and connected to the arc wall of the arc-shaped abutment. Only the four sides of the silicone film are fixed to the arc wall of the arc-shaped abutment.

[0011] Preferably, the middle region of the arc-shaped abutment is connected to the first air passage through the second air passage; The arc-shaped abutment is located below the inner support member.

[0012] Preferably, the locking pin includes a retaining ring fixed to the outer wall of the trachea, and a retaining block is slidably connected to the inner part of the upper end of the retaining ring. The sliding area of ​​the retaining block and the retaining ring is elastically connected by a first spring.

[0013] Preferably, the card block is in the shape of an inverted "C"; Pulling the locking block outward stretches the first spring, pulls the pull ring to move it into the inside of the locking block, and releases the locking block to allow it to pass through the first spring, thus locking the pull ring in place.

[0014] Preferably, the inner support member is in the shape of a frustum, narrow at the top and wide at the bottom, and has multiple air outlet slots. A pressure sensor is installed on the top of the air pipe in the area inside the inner support member.

[0015] Preferably, when the first air passage moves to the side near the inner support member, it will compress and fold the bellows, allowing the gas inside to enter the airbag through the first air passage. When the airbag inflates, it will squeeze the outside of the nitrile glove that is covered by the inner support member from the outside in.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention effectively solves the technical problem of poor stability in traditional testing devices that rely solely on single-sided clamping by combining an inner support component, an outer pressure assembly, an airbag, and a pressure-resistant component. It achieves a bidirectional, flexible clamping and fixing effect for nitrile glove cuffs through a combination of inner support and outer pressure. Traditional testing equipment relies solely on a single-sided clamp to press the glove cuff, which cannot adapt to the soft and highly elastic material characteristics of nitrile gloves. During inflation testing, problems such as glove shifting, loosening, and wrinkling deformation easily occur, leading to defects such as poor sealing, false leaks, and misjudgments. The invention utilizes a frustum-shaped inner support component to evenly support the glove cuff from the inside, combined with an external pressure ring, airbag, arc-shaped pressure plate, and silicone membrane forming a multi-stage external pressure structure, providing all-around fit and restraint of the glove cuff from both the inner and outer sides. The combination of internal support and external pressure can effectively limit radial sway and axial displacement during glove inflation, and regulate the glove fitting status, significantly improving the glove clamping firmness and flatness, providing a stable basis for airtightness testing, and effectively avoiding testing errors caused by unstable fixing.

[0017] This invention achieves air pressure-linked sealing and adaptive fitting through the combination of a folded bellows, a first air channel, a second air channel, and an elastic reset structure. This effectively solves the drawbacks of traditional equipment, such as large clamping gaps, poor sealing performance, and easy leakage, significantly improving detection accuracy. Traditional single-sided clamping structures have poor rigidity and gaps that are difficult to eliminate, making them prone to external air leakage that interferes with detection data, leading to high rates of missed and false detections. This device utilizes the expansion and contraction characteristics of the folded bellows. During the upward reset of the outer pressure ring, the internal gas is compressed and supplied to the airbag through the first air channel, achieving flexible expansion and compression of the airbag. Simultaneously, the gas is introduced into the pressure-retaining component through the second air channel, lifting the silicone membrane to achieve a secondary flexible seal. The special structure of the silicone membrane, fixed at all four sides and movable in the center, adaptively fits the curved outer wall of the glove, filling minute clamping gaps. Combined with the staggered curved fitting end face, it achieves a seal without dead angles, effectively eliminating false leaks, ensuring stable airtightness during the detection process, and significantly improving the screening accuracy for micro-pores, micro-cracks, and other minor defects in nitrile gloves.

[0018] This invention optimizes the equipment operation process and improves the device's versatility and operational efficiency by incorporating a locking pin, a first spring, a second spring, and a frustum-shaped inner support, thus adapting to the needs of large-scale industrial testing. The device achieves rapid locking and unlocking of the external pressure component through the locking pin and the first spring, while the second spring enables automatic reset of the external pressure ring. This simplifies the clamping and disassembly of the gloves, eliminating the need for precise manual alignment and significantly reducing the testing time per cycle. Simultaneously, the frustum-shaped inner support, narrower at the top and wider at the bottom, can accommodate various cuff sizes of nitrile gloves, adaptively opening and positioning, greatly enhancing the device's versatility. Combined with real-time air pressure monitoring via a built-in pressure sensor, it can automatically complete airtightness testing and quality judgment, effectively improving the testing efficiency of large-scale production, reducing human error and product false positive losses, and adapting to the needs of industrial batch quality inspection operations. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0020] Figure 1 This is a schematic diagram of the overall structure of a nitrile glove production quality inspection device according to the present invention; Figure 2 This is a schematic diagram of the air pipe and external pressure assembly of a nitrile glove production quality inspection device according to the present invention; Figure 3 This is a schematic diagram of the external pressure component and the internal support component of a nitrile glove production quality inspection device according to the present invention; Figure 4 This is a schematic diagram of the air tube and locking pin of a nitrile glove production quality inspection device according to the present invention; Figure 5 This is a detailed structural diagram of the external pressure component of a nitrile glove production quality inspection device according to the present invention; Figure 6 This is a schematic diagram showing the detailed structure and fit of the locking pin and external pressure assembly of a nitrile glove production quality inspection device according to the present invention. Figure 7 This invention relates to a production quality inspection device for nitrile gloves. Figure 6 A magnified view of the structure at point A in the middle; Figure 8 This invention relates to a production quality inspection device for nitrile gloves. Figure 6 A magnified schematic diagram of the structure at point B in the middle; Figure 9 This is a detailed structural diagram of the pressing component of a nitrile glove production quality inspection device according to the present invention.

[0021] In the diagram: 100, base; 200, air pump; 300, air hose; 400. Locking pin; 410. Snap ring; 420. Locking block; 430. First spring; 500. External pressure assembly; 510. External pressure ring; 520. Pull ring; 530. First air passage; 540. Folded bellows; 550. Second spring; 560. Airbag; 570. Pressing component; 571. Mounting plate; 572. Arc-shaped pressing plate; 573. Silicone membrane; 574. Second air passage; 600. Internal support components. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0023] In the description of this invention, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0024] like Figures 1 to 9 As shown, the present invention provides a production quality inspection device for nitrile gloves, including a base 100, an air pump 200, and an air pipe 300, and further comprising: An external pressure assembly 500 is disposed on the outer side of the end of the air tube 300 away from the base 100; The inner support member 600 is installed at the end of the air tube 300 and is located inside the external pressure assembly 500; The external pressure assembly 500 includes an external pressure ring 510 that is slidably sleeved on the outside of the airway 300. The external pressure ring 510 has a first airway 530 inside. An airbag 560 is fixedly connected to the upper end of the external pressure ring 510 near the inner support member 600. The upper end of the outer pressure ring 510 is inclined towards the inner support member 600, and there is a gap between the inner side of the top of the outer pressure ring 510 and the outer side of the bottom of the inner support member 600.

[0025] The above solution is adopted: by setting inner support 600 and outer pressure component 500 at the inner and outer ends of the air tube 300, a two-way clamping and limiting structure with inner support and outer pressure is formed. Compared with the traditional single-sided clamping method, it can effectively fix and limit the cuff of the nitrile glove in all directions by cooperating with the inner support and outer pressure of the glove cuff.

[0026] The inclined upper structure of the outer pressure ring 510 can conform to the curved outer wall of the glove cuff. Combined with the flexible compression of the inner airbag 560, it can adapt to the soft and elastic nitrile glove material, eliminating the problem of easy loosening and displacement of unilateral fixation. At the same time, the reserved gap between the outer pressure ring 510 and the inner support 600 can provide buffer space for the deformation of the glove cuff, avoiding glove wrinkles and stretching deformation caused by rigid clamping. The first air channel 530 can realize airflow delivery, providing a channel for the inflation and pressurization of the airbag 560 and the subsequent airtightness test, which greatly improves the fixation stability and fit and sealing of the glove during the test, reducing gas leakage and false detection problems in the inflation test process from the root.

[0027] A pull ring 520 is fixedly connected to the inner end of the outer pressure ring 510. The pull ring 520 is slidably sleeved on the outside of the air tube 300, and a locking pin 400 is movably engaged at the end of the pull ring 520 away from the inner support member 600.

[0028] Using the above solution: By setting a pull ring 520 that is fixed to the outer pressure ring 510, the outer pressure ring 510 can be slid along the axial direction of the air pipe 300 by manually pulling the pull ring 520. With the movable locking pin 400, the pull ring 520 can be limited and locked.

[0029] A folded bellows 540 is fixedly connected to the top end of the external pressure ring 510 near the trachea 300, and the top end of the folded bellows 540 is fixedly connected to the trachea 300. The inner cavity of the folded bellows 540 is connected to the first airway 530.

[0030] The above solution utilizes a folded corrugated tube 540 to connect the air pipe 300 and the first airway 530 of the external pressure ring 510. This ensures stable airflow delivery, allowing for smooth inflation and depressurization of the airbag 560, and meeting the pressure regulation requirements of flexible external pressure clamping. Simultaneously, the folded corrugated tube 540 is retractable and foldable, adapting to the sliding adjustment of the external pressure ring 510 along the air pipe 300. This maintains the airway's airtightness throughout, preventing bending, blockage, or leakage due to the movement of the external pressure ring 510. This effectively ensures the stability of the airflow transmission, providing reliable airway support for precise adjustment of the external pressure clamping force and accurate airtightness detection, further improving the device's operational stability and detection accuracy.

[0031] The outer pressure ring 510 and the air tube 300 are elastically connected by a second spring 550, which is movably sleeved on the outside of the folded bellows 540. The contact ends of the outer pressure ring 510 and the inner support 600 are staggered and both are arc-shaped.

[0032] The above solution is adopted: by setting a second spring 550 on the outside of the folded bellows 540, the outer pressure ring 510 and the air tube 300 form an elastic connection structure. After the locking pin 400 is released, the second spring 550 can automatically drive the outer pressure ring 510 to reset, without the need for manual reset adjustment, simplifying the operation steps and improving the efficiency of glove replacement and testing.

[0033] Meanwhile, the second spring 550 can buffer the impact force during the sliding process of the outer pressure ring 510, avoiding structural wear or glove compression damage caused by hard collisions. The structural design of the misaligned arc-shaped end faces of the outer pressure ring 510 and the inner support 600 can perfectly fit the arc-shaped surface of the glove cuff, increasing the contact area with the glove and achieving multi-point, all-round flexible fitting and clamping. This avoids the problem of sharp corners squeezing and tearing the glove or uneven clamping force, further optimizing the fixing effect of the inner support and outer pressure, and ensuring the uniformity and stability of the sealing clamping.

[0034] The outer pressure ring 510 has a pressure-retaining component 570 fixedly connected inside; The pressing component 570 includes a mounting plate 571 fixed to the inner wall of the outer pressure ring 510. An arc-shaped abutment 572 is rotatably connected to one end of the mounting plate 571 away from the outer pressure ring 510. A silicone film 573 is fixed to the top of the arc-shaped abutment 572. The middle area of ​​the silicone film 573 is movably fitted and connected to the arc wall of the arc-shaped abutment 572. Only the four sides of the silicone film 573 are fixed to the arc wall of the arc-shaped abutment 572.

[0035] The above solution is adopted: by adding a pressure-resistant component 570 inside the outer pressure ring 510, the arc-shaped pressure plate 572 can be stably installed by relying on the mounting plate 571, and can be used in conjunction with the inner support component 600 to further accurately pressure and limit the outer side of the glove cuff.

[0036] The 572 curved backplate can adaptively rotate and adjust its angle to fit the curved surface of nitrile glove cuffs of different deformation states and specifications, making it more adaptable.

[0037] The 573 structure, featuring a fixed perimeter and a movable center, utilizes the high flexibility and sealing properties of silicone to tightly adhere to the outer wall of the glove. The movable center structure allows for slight deformation space, preventing rigid pressure from damaging the nitrile glove body. This ensures a secure and sealed seal while effectively protecting the integrity of the test sample and reducing test losses.

[0038] The middle area of ​​the arc-shaped abutment 572 is connected to the first air passage 530 through the second air passage 574; The curved support plate 572 is located below the inner support member 600.

[0039] The above solution is adopted: the arc-shaped abutment 572 and the first airway 530 are connected through the second airway 574, so that the airflow can be smoothly delivered to the inside of the silicone membrane 573. The air pressure is used to lift the middle movable area of ​​the silicone membrane 573, so that the silicone membrane 573 is tightly attached to the outer wall of the glove, realizing air pressure-assisted flexible pressing, and further improving the clamping seal and fit.

[0040] The locking pin 400 includes a retaining ring 410 fixed to the outer wall of the air tube 300. A retaining block 420 is slidably connected to the upper end of the retaining ring 410. The sliding area of ​​the retaining block 420 and the retaining ring 410 is elastically connected by a first spring 430.

[0041] The above solution is adopted: the locking ring 410 is used to achieve stable fixation of the locking pin 400 on the outer wall of the air tube 300. The locking block 420 and the first spring 430 cooperate to form an elastic telescopic locking structure. The structure is simple, the response is fast, and it is not easy to get stuck.

[0042] Relying on the elastic extension and retraction characteristics of the first spring 430, the locking block 420 can be opened and closed quickly and automatically reset. The locking and unlocking operation of the pull ring 520 can be completed without a complex drive structure, simplifying the equipment adjustment process and improving the efficiency of the hand clamp disassembly. At the same time, the elastic locking structure can be adapted to the long-term high-frequency testing operation of the equipment. It is wear-resistant, durable, and highly stable, effectively ensuring the reliability of the limit fixation of the external pressure component 500.

[0043] Card block 420 is shaped like an inverted "C"; Pulling the locking block 420 outward stretches the first spring 430, pulls the pull ring 520 to move it into the interior of the locking block 420, and releases the locking block 420 so that it passes through the first spring 430, thus locking the pull ring 520.

[0044] The above solution uses a reverse "C"-shaped locking block 420 structure to form a closed locking slot, which can fully wrap the limiting pull ring 520, with a large limiting area and strong locking stability.

[0045] The operation of opening, closing, resetting, and locking the locking block 420 is achieved by stretching the first spring 430. The action is simple, precise, and efficient. A single person can quickly complete the fixing and disassembly of the hand clamp, which is suitable for the needs of large-scale testing operations on assembly lines. At the same time, the mechanical elastic locking structure has no electrical loss and a low failure rate, further improving the practicality and stability of the device.

[0046] The inner support 600 is in the shape of a frustum, narrow at the top and wide at the bottom, and has multiple air outlet slots. A pressure sensor is installed on the top of the air pipe 300 in the area inside the inner support 600.

[0047] The above solution uses a frustum-shaped inner support 600 that is narrower at the top and wider at the bottom, which can be easily inserted into the cuff of nitrile gloves of different diameters. At the same time, the curved surface of the frustum can adaptively open the cuff of the glove to achieve uniform inner support. Together with the outer pressure component 500, it forms a stable inner support and outer pressure fixing structure to prevent local loosening and deformation of the cuff.

[0048] Multiple air outlets ensure even airflow diffusion, resulting in more uniform inflation inside the glove and preventing abnormal stretching and tearing caused by excessively high local pressure. The built-in pressure sensor accurately collects real-time data on pressure changes inside the glove during testing, precisely determining the presence of leaks through pressure differences. This enables automated, high-precision airtightness testing, effectively improving the accuracy of defect screening. Simultaneously, real-time monitoring of the testing pressure prevents abnormal pressure from affecting test results, further enhancing the device's accuracy and intelligence.

[0049] When the first air passage 530 moves to the side near the inner support member 600, it will compress and fold the bellows 540, allowing the gas inside to enter the airbag 560 through the first air passage 530. When the airbag 560 inflates, it will squeeze the outside of the nitrile glove that is covered by the inner support member 600 from the outside to the inside.

[0050] Working principle and usage process of this invention: During the nitrile glove testing process, the operator first manually pulls the locking block 420 in the locking pin 400 outwards, causing the locking block 420 to slide outwards against the elastic tension of the first spring 430. The locking slot of the locking block 420 then opens, releasing the obstruction and limiting effect on the pull ring 520. The operator then pulls the pull ring 520 downwards, causing the entire outer pressure ring 510 to move synchronously downwards along the air pipe 300 axis, displacing the outer pressure ring 510 to a position below the inner support 600. Once the pull ring 520 reaches the locking position of the locking block 420, the locking block 420 is released. Under the elastic restoring force of the first spring 430, the locking block 420 automatically returns to its original position, locking the pull ring 520 securely through a reverse "C"-shaped structure. This achieves stable locking of the pull ring 520, thereby locking the entire outer pressure assembly 500 in a low-position, ready-to-work state, effectively preventing the outer pressure assembly 500 from springing back and displacing, and reserving sufficient operating space for subsequent glove clamping.

[0051] After the external pressure component 500 is positioned and locked, the operator places the nitrile glove to be tested onto the outer wall of the frustum-shaped inner support 600 from top to bottom. Utilizing the frustum-shaped structure of the inner support 600, which is narrower at the top and wider at the bottom, it can accommodate nitrile gloves with different cuff sizes, making the glove fitting operation convenient. At the same time, the inner support 600 can evenly open and support the glove from inside the cuff, ensuring that the inner wall of the glove cuff fits tightly against the outer wall of the inner support 600. This ensures that the glove fits smoothly, without wrinkles or loosening. Finally, the cuff of the nitrile glove is precisely fastened and limited to the outer area of ​​the bottom of the inner support 600, completing the glove loading and positioning process.

[0052] After the handpiece is clamped, pull the locking block 420 outward again, stretching the first spring 430 to open the locking block 420 and release its locking constraint on the pull ring 520. At this time, the second spring 550, which is in a stretched state, loses its limiting restraint and generates an upward elastic restoring force, pulling the pull ring 520 and the overall outer pressure ring 510 to move slowly upward along the axial direction of the air tube 300, realizing the automatic reset and upward movement of the outer pressure assembly 500. During the upward movement of the outer pressure ring 510, the folded bellows 540 sleeved inside it will be compressed simultaneously. The sealed space inside the folded bellows 540 will shrink, and the air stored inside will be compressed and flow smoothly into the first air passage 530 inside the outer pressure ring 510 through the connecting channel. Then, the first air passage 530 will deliver the gas to the airbag 560 at the top, causing the airbag 560 to inflate rapidly. Because the upper end of the outer pressure ring 510 is designed to be inclined towards the inner support member 600, the inflated airbag 560 can precisely fit the outer arc-shaped wall of the nitrile glove cuff, forming a uniform and flexible clamping force from the outside of the glove. This force works in conjunction with the supporting force of the inner support member 600 to construct a two-way clamping and sealing structure with inner support and outer pressure.

[0053] As the outer pressure ring 510 continues to rise, the misaligned arc-shaped contact area between its inner top and the bottom of the inner support 600 exerts a uniform outward pressing force on the glove cuff. Simultaneously, it pushes the middle section of the outer pressure ring 510 smoothly to the inner cavity of the lower end of the inner support 600, further reducing the gap between the inner and outer structures and preventing problems such as glove loosening, shifting, and air leakage. At the same time, the pressure-resistant member 570, fixed to the inner wall of the outer pressure ring 510, rises synchronously with the outer pressure ring 510. The mounting plate 571 stably supports the adaptively rotatable arc-shaped pressure plate 572 at its end, allowing the arc-shaped wall at the top of the arc-shaped pressure plate 572 to gradually conform to the outer glove area corresponding to the bottom of the inner support 600. Utilizing its rotational adjustment characteristics to adapt to the curved shape of the glove, it ensures a seamless fit without any dead angles or hard compression damage.

[0054] While the arc-shaped support plate 572 is in place, the gas inside the first air passage 530 can be smoothly introduced into the inner cavity of the arc-shaped support plate 572 through the second air passage 574 in the middle of the arc-shaped support plate 572. The continuously accumulating air pressure will push up the movable area in the middle of the silicone membrane 573. Since the silicone membrane 573 is only fixed to the arc-shaped support plate 572 at all four sides and has a movable fitting structure in the middle, it can flexibly bulge and press tightly against the outer wall of the nitrile glove cuff after being pressed, achieving secondary sealing and pressure, which greatly improves the fixation firmness and overall sealing of the glove cuff, and effectively avoids the defects of gap leakage and false leakage that exist in traditional single-sided clamping.

[0055] After the gloves are sealed and secured in both directions, the testing process can begin. A constant-pressure gas is output from the air pump 200 at the top of the base 100. The gas is transported upwards along the air pipe 300 and finally discharged at a uniform speed from multiple air outlets evenly distributed on the surface of the inner support 600, ensuring the gas smoothly fills the entire inner cavity of the nitrile glove and completing the glove's inflation and shaping. During the overall inflation test, a pressure sensor installed at the top of the air pipe 300 and inside the inner support 600 continuously collects the air pressure data of the glove's inner cavity in real time, accurately monitoring the constant changes in the internal air pressure and transmitting the collected pressure data to an external display terminal. Workers can judge the glove's quality based on the changes in air pressure data: if the air pressure value is constant without significant decay, it proves that the glove has no holes, cracks, or leaks, and the product quality is qualified; if the air pressure value continuously and rapidly decreases, it proves that the glove has minor damage or leakage problems, and is judged as a substandard product. This accurately completes the automated airtightness quality testing of nitrile gloves.

[0056] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0057] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A production quality inspection device for nitrile gloves, characterized in that, include: The base (100), air pump (200), and air pipe (300) are characterized in that: they further include: An external pressure assembly (500) is disposed on the outer side of the end of the air tube (300) away from the base (100); An inner support member (600) is installed at the end of the air tube (300) and located inside the external pressure assembly (500); The external pressure assembly (500) includes an external pressure ring (510) that is slidably sleeved on the outside of the trachea (300). The external pressure ring (510) has a first airway (530) inside. An airbag (560) is fixedly connected to the upper end of the external pressure ring (510) near the inner support (600). The upper end of the outer pressure ring (510) is inclined towards the inner support member (600), and there is a gap between the inner side of the top end of the outer pressure ring (510) and the outer side of the bottom end of the inner support member (600).

2. The nitrile glove production quality inspection device according to claim 1, characterized in that: The inner end of the outer pressure ring (510) is fixedly connected to a pull ring (520), the pull ring (520) is slidably sleeved on the outside of the air tube (300), and the end of the pull ring (520) away from the inner support (600) is movably engaged with a locking pin (400).

3. The nitrile glove production quality inspection device according to claim 2, characterized in that: The top end of the outer pressure ring (510) near the trachea (300) is fixedly connected to a folded corrugated pipe (540), and the top end of the folded corrugated pipe (540) is fixedly connected to the trachea (300). The inner cavity of the folded corrugated tube (540) is connected to the first airway (530).

4. The nitrile glove production quality inspection device according to claim 3, characterized in that: The outer pressure ring (510) and the air tube (300) are elastically connected by a second spring (550), which is movably sleeved on the outside of the folded corrugated tube (540). The contact ends of the outer pressure ring (510) and the inner support member (600) are staggered and both are arc-shaped.

5. The nitrile glove production quality inspection device according to claim 4, characterized in that: The outer pressure ring (510) is internally fixed with a pressure-blocking member (570); The pressing component (570) includes a mounting plate (571) fixed to the inner wall of the outer pressure ring (510). An arc-shaped abutment (572) is rotatably connected to one end of the mounting plate (571) away from the outer pressure ring (510). A silicone film (573) is fixed to the top of the arc-shaped abutment (572). The middle area of ​​the silicone film (573) is movably fitted and connected to the arc wall of the arc-shaped abutment (572). Only the four sides of the silicone film (573) are fixed to the arc wall of the arc-shaped abutment (572).

6. The nitrile glove production quality inspection device according to claim 5, characterized in that: The middle area of ​​the arc-shaped abutment (572) is connected to the first air passage (530) through the second air passage (574); The arc-shaped abutment (572) is located below the inner support (600).

7. The nitrile glove production quality inspection device according to claim 2, characterized in that: The locking pin (400) includes a retaining ring (410) fixed to the outer wall of the air pipe (300), and a retaining block (420) is slidably connected to the upper end of the retaining ring (410). The sliding area of ​​the retaining block (420) and the retaining ring (410) is elastically connected by a first spring (430).

8. The nitrile glove production quality inspection device according to claim 7, characterized in that: The card block (420) is in the shape of an inverted "C"; Pulling the latch (420) outward stretches the first spring (430), pulls the pull ring (520) to move it into the interior of the latch (420), and releases the latch (420) so that it passes through the first spring (430) and locks the pull ring (520) in place.

9. The production quality inspection device for nitrile gloves according to claim 1, characterized in that: The inner support member (600) is in the shape of a frustum, which is narrow at the top and wide at the bottom, and multiple air outlet slots are provided on the inner support member (600). A pressure sensor is installed on the top of the air pipe (300) in the area inside the inner support member (600).

10. The production quality inspection device for nitrile gloves according to claim 1, characterized in that: When the first air passage (530) moves to the side near the inner support (600), it will compress and fold the bellows (540) so that the gas inside it enters the airbag (560) through the first air passage (530). When the airbag (560) inflates, it will squeeze the outside of the nitrile glove that is covered by the inner support (600) from the outside to the inside.

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