A detection device and detection method for nitrile gloves

Abstract

The application discloses a kind of detection equipment and detection method of butyronitrile glove, belong to glove detection equipment and method technical field, comprising: tensile testing mechanism, the tensile testing mechanism includes fixed on workbench drive motor, the output shaft of drive motor is connected with the first lead screw shaft distributed along the length direction of bar-shaped groove, first nut screw is driven on the first lead screw shaft, first slider is installed on the top of first nut screw, push rod is installed at the top of first slider, and the one end of push rod penetrates through shell and extends to the outside of shell;First gear plate is fixedly installed on the push rod, and the top of first gear plate is engaged and driven by center rotating tooth with vertically distributed second gear plate.The application can solve if hidden multiple cracks appear in the middle section of glove, in the process of pulling rope, the middle end may break and fly, thereby bringing corresponding safety hazard to test personnel, which is not conducive to the safety of test operation.

Description

Technical Field

[0001] This invention belongs to the technical field of glove testing equipment and methods, specifically relating to a testing equipment and method for nitrile gloves. Background Technology

[0002] The main functions of nitrile gloves include protection against chemical corrosion, resistance to physical damage, and prevention of allergic reactions, while also providing comfort and operational flexibility. They are widely used in various fields such as medical, chemical, and food processing.

[0003] The nitrile rubber used in nitrile gloves is made from butadiene and acrylonitrile through emulsion polymerization. The resulting products have excellent oil resistance, high abrasion resistance, and good heat resistance. They are made from high-quality nitrile rubber with other additives, and are refined through a process that ensures they are protein-free, non-allergenic to human skin, non-toxic, harmless, durable, and have good adhesion.

[0004] When performing tensile testing on nitrile gloves, the quality of the drawstring is typically tested by measuring the different tensile strengths at both ends. However, if multiple hidden cracks are found in the middle section of the glove, the middle end may break and fly off during the drawstring test, posing a safety hazard to the test personnel and compromising the safety of the testing operation. In addition, a separate airtightness testing device is required to test the airtightness of nitrile gloves, which is not conducive to rapid testing. Furthermore, the integrated structural design has poor performance, making operation cumbersome and reducing work efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a testing device and method for nitrile gloves, in order to solve the technical problem that if multiple hidden cracks appear in the middle section of the glove, the middle end may break off and fly off during the pulling process, thus posing a corresponding safety hazard to the test personnel and compromising the safety of the test operation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A testing device for nitrile gloves, comprising:

[0008] A tensile testing mechanism includes a drive motor fixed on a workbench, the output shaft of the drive motor is connected to a first lead screw shaft distributed along the length direction of the strip groove, a first slider is helically driven on the first lead screw shaft, a push rod is installed on the top of the first slider, and one end of the push rod passes through the housing and extends to the outside of the housing;

[0009] A first gear plate is fixedly installed on the push rod. A vertically distributed second gear plate is driven by a central rotating tooth at the top of the first gear plate. A friction sleeve connected to the central shaft is provided on the central rotating tooth. One end of the second gear plate is fixedly connected to a horizontal telescopic rod. A sliding groove is connected to the horizontal telescopic rod along the height direction of the housing. The horizontal telescopic rod and the push rod are connected by a vertical telescopic rod. One end of the horizontal telescopic rod is connected to a downwardly extending clamping block.

[0010] It also includes a trigger clamping mechanism, which includes a hollow fixed block. One end of the fixed block is integrally connected to a sleeve near the support plate, and a dual-axis motor is fixedly installed on the inner wall of the fixed block. One end of the output shaft of the dual-axis motor is connected to the turntable, and the other end is connected to the second lead screw. The protrusions around the turntable are connected to the second slider through a swing rod. One end of the second slider is connected to a rectangular hole near the fixed plate, and one end of the second slider passes through the fixed block and extends to the arc-shaped clamping plate.

[0011] Both ends of the swing rod are mounted on the second slider and the turntable by means of rotational connection, and the fixed plate is mounted on the inner wall of the fixed block by means of bolt assembly.

[0012] Furthermore, the bottom of the housing is fixed to the workbench by a bracket, and a water tank is detachably installed at the center of the top of the workbench. A movable block is connected to the bottom of the inner wall of the water tank by a first spring. A support plate that matches the movable block is installed on the top of the movable block, and a panel is installed on all four sides of the inner wall of the water tank by a fixing rod. An electric push rod is connected to the panel, and the movable rod at the bottom of the electric push rod passes through the panel and extends to the pressure plate.

[0013] Furthermore, a cylinder is fixed to the bottom of the workbench directly below the water tank. A tensioning wheel is installed on the piston rod at the bottom of the cylinder. The outer wall of the tensioning wheel abuts against the pull rope. Both ends of the pull rope are connected to the guide holes of the first clamping plate through guide wheels. The first clamping plate is hinged to the staggered second clamping plates. One end of the first clamping plate is connected to the side plate through a movable shaft. One end of the second clamping plate is fixed to the side plate through a positioning pin. A return spring is provided on the movable shaft between the first clamping plate and the side plate.

[0014] Furthermore, the guide wheel is symmetrically arranged with respect to the center of the support plate, and the guide wheel is movably connected to the baffle on the top of the workbench. The workbench is provided with a movable groove for connecting to the pull rope.

[0015] Furthermore, a third slider is screwed on the second lead screw shaft and placed on the side wall of the fixed block. The third slider is connected to an abutment rod extending to the outside of the fixed block via a U-shaped rod. A battery box that can move horizontally on the worktable is provided outside the abutment rod. The outer wall of the battery box has an insertion hole for connecting to the abutment rod, and the battery box has a cover plate that movably fits the abutment rod. One end of the cover plate is connected to the side wall of the battery box via a second spring, and the other end is connected to a tapered insert rod extending to the gap of the battery pack.

[0016] Furthermore, the battery pack is electrically connected to both an electric push rod and an air pump, with one end of the air pump connected to the air hole of the sleeve via a conduit.

[0017] A method for testing nitrile gloves includes the following steps:

[0018] S1.1 Place the gloves on the support plate and attach the cuffs of the gloves to the outer wall of the sleeve. Start the dual-axis motor so that the arc-shaped clamps clamp the cuffs of the gloves tightly.

[0019] S1.2 Start the drive motor. Under the action of the screw transmission and the meshing transmission between the gears, the clamping block moves downward to clamp the fingertips of the glove and pulls them outward. With the pulling action of the pull rope on the cylinder, the first clamping plate and the second clamping plate clamp the two ends of the glove, thereby completing the tensile strength test of the glove.

[0020] S1.3. Restart the dual-axis motor, simultaneously clamp the arc-shaped clamping plate around the cuff of the glove, and power the battery pack to the electric push rod and air pump. During the inflation of the glove, the pressure plate moves the glove downwards, thus placing the glove in the water tank and completing the fixed-point airtightness test of the glove.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0022] (1) In this invention, when performing a tensile test on the gloves, the glove cuff is first fitted onto the sleeve, and the battery box is moved to the other end of the slide groove so that the contact rod cannot contact it during the movement. During the start-up of the dual-axis motor, under the rotational connection of the swing rod, the arc-shaped clamp can clamp and fix the glove cuff around. Then the drive motor starts, and under the action of the screw transmission, the first slider drives the push rod to move outward. During the outward movement of the push rod, the horizontal telescopic rod can be moved synchronously through the vertical telescopic rod, and the horizontal telescopic rod can perform normal contraction activities. The push rod can carry The synchronous movement of the first gear plate causes the second gear plate to move downwards under the meshing transmission of the gears. This, in turn, drives the horizontal telescopic rod to move downwards normally, thereby clamping the pressing block onto the fingertips of the glove. After clamping, the glove can move outwards normally, thus achieving effective tensile testing. At the same time, the first gear plate on the push rod is intermittently set, forming an intermittent gear. After helping to fix and clamp the pressing block, it no longer continues to press downwards, and can maintain normal outward tensile movement, avoiding interference between structural components and improving the stability of the device.

[0023] (2) In this invention, the clamping mechanism connected to the cylinder can clamp the middle end of the glove, thereby preventing the middle end from breaking and flying off. When the cylinder is pulled down, the tension wheel drives the pull rope to move down, thereby causing the first clamping plate on the movable shaft to rotate outward, thereby opening the clamping opening and allowing the glove to be placed into the clamping cavity. When the cylinder is pulled up, the tension of the pull rope can be adjusted. The first clamping plate rotates inward under the elastic recovery action of the return spring, thereby enabling effective clamping and positioning. Moreover, the transmission components have strong synchronization performance and good positioning effect, which can ensure the safety of equipment operation.

[0024] (3) In this invention, when the glove is working on airtightness, the battery box moves to a position where the abutment rod can abut against it and fits. The battery box is locked and fixed at the corresponding position on the worktable by the positioning pin. After the dual-axis motor is started, it can not only fix the cuff of the glove by the arc-shaped clamp, but also the abutment rod can abut against the cover plate during the movement, so that the conical plug rod is separated from the battery pack. At the same time, the battery pack supplies power to the air pump and the electric push rod. The air pump can inflate the glove. During the process of the electric push rod driving the pressure plate to move downward, the glove can be placed in the water tank. The airtightness of the glove can be observed by whether the water is bubbling. In addition, the location of the glove leakage can be clearly determined by the bubbling point of the glove, which effectively improves the accuracy of equipment detection, improves detection precision, and makes it convenient for personnel to operate. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0026] Figure 1 This is a schematic diagram of the structure of a testing device for nitrile gloves according to the present invention. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the structure of a testing device for nitrile gloves according to the present invention. Figure 2 ;

[0028] Figure 3 This is a front view of a testing device for nitrile gloves according to the present invention;

[0029] Figure 4 This is a right view of a testing device for nitrile gloves according to the present invention;

[0030] Figure 5 This is a schematic diagram of the structure of the nitrile gloves of the present invention;

[0031] Figure 6 This is a schematic diagram of the meshing transmission of the central rotating tooth of the present invention;

[0032] Figure 7 This is the present invention. Figure 1 Enlarged view of point A;

[0033] Figure 8 This is the present invention. Figure 2 Enlarged view of point B;

[0034] Figure 9 This is a connection diagram of the dual-axis motor of the present invention;

[0035] Figure 10 This is a schematic diagram showing the connection between the fixed disk and the turntable of the present invention;

[0036] Figure 11 This is a schematic diagram of the internal structure of the battery box of the present invention;

[0037] Figure 12 This is a schematic diagram of the structure of the support plate of the present invention;

[0038] Figure 13 This is a schematic flowchart of a method for testing nitrile gloves according to the present invention.

[0039] Reference numerals: 1. Tensile testing mechanism; 2. Worktable; 3. Drive motor; 4. First lead screw shaft; 5. First slider; 6. Push rod; 7. Housing; 8. First gear plate; 9. Central rotating gear; 10. Second gear plate; 11. Friction sleeve; 12. Horizontal telescopic rod; 13. Vertical telescopic rod; 14. Clamping block; 15. Water tank; 16. First spring; 17. Support plate; 18. Panel; 19. Electric push rod; 20. Pressure plate; 21. Cylinder; 22. Tensioning wheel; 23. Pull rope; 24. Guide. 25. Wheel; 26. First clamping plate; 27. Second clamping plate; 28. Movable shaft; 29. ​​Return spring; 30. Actuating clamping mechanism; 31. Fixed block; 32. Sleeve; 33. Dual-axis motor; 34. Turntable; 35. Second lead screw shaft; 36. Second slider; 37. Swing rod; 38. Fixed plate; 39. Rectangular hole; 40. Arc-shaped clamping plate; 41. Third slider; 42. Abutment rod; 43. Battery box; 44. Cover plate; 45. Second spring; 46. Battery pack; 47. Conical insertion rod; 48. Air pump. Detailed Implementation

[0040] 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.

[0041] Reference manual attached Figure 1 - Appendix Figure 12 As shown, a testing device for nitrile gloves includes:

[0042] Tensile testing mechanism 1 includes a drive motor 3 fixed on a workbench 2. The output shaft of the drive motor 3 is connected to a first lead screw shaft 4 distributed along the length of the strip groove. A first slider 5 is screw-driven on the first lead screw shaft 4. A push rod 6 is installed on the top of the first slider 5. One end of the push rod 6 passes through the housing 7 and extends to the outside of the housing 7.

[0043] A first gear plate 8 is fixedly installed on the push rod 6. The top of the first gear plate 8 is meshed with a vertically distributed second gear plate 10 through a central rotating tooth 9. The central rotating tooth 9 is provided with a friction sleeve 11 connected to the central shaft. One end of the second gear plate 10 is fixedly connected to the horizontal telescopic rod 12. The horizontal telescopic rod 12 is connected with a sliding groove along the height direction of the housing 7. The horizontal telescopic rod 12 and the push rod 6 are connected through a vertical telescopic rod 13. One end of the horizontal telescopic rod 12 is connected to a downwardly extending clamping block 14.

[0044] The friction sleeve 11 on the central shaft can prevent the glove from separating after the clamping block 14 has clamped it. In other words, the meshing force between the rotating teeth is greater than the friction resistance of the friction sleeve 11, and the friction resistance of the friction sleeve 11 is greater than the squeezing force of the glove between the clamping block 14 and the push rod 6.

[0045] When performing a tensile test on the gloves, first, the glove cuff is fitted onto the sleeve 31. The battery box 42 is moved to the other end of the slide groove so that the contact rod 41 cannot contact it during movement. During the start-up of the dual-axis motor 32, under the rotational connection of the swing rod 36, the arc-shaped clamp 39 can clamp and fix the glove cuff around its perimeter. Then, the drive motor 3 starts, and under the action of the screw drive, the first slider 5 drives the push rod 6 to move outward. During the outward movement of the push rod 6, the horizontal telescopic rod 12 can move synchronously through the vertical telescopic rod 13, and the horizontal telescopic rod 12 can perform normal contraction and retraction. The push rod 6 can... The first gear plate 8 moves synchronously, and under the action of gear meshing transmission, the second gear plate 10 moves downward, which in turn drives the horizontal telescopic rod 12 to move downward normally. This allows the clamping block 14 to fix and clamp the fingertips of the glove, and after clamping, it can move outward normally, thus achieving effective tensile testing. At the same time, the first gear plate 8 on the push rod 6 is intermittently set, forming an intermittent gear. After helping the clamping block 14 to be fixed and clamped, it will not continue to press downward, and it can maintain normal outward tensile movement, avoiding interference between structural components and improving the stability of the device.

[0046] The aforementioned force design allows the clamping block 14 to be effectively pressed against the glove during rotation. It also prevents the glove from separating during the pressing process between the clamping block 14 and the push rod 6. Furthermore, the first gear plate 8 on the push rod 6 is relative to the intermittent gear, so that the clamping block 14 can move freely outward after pressing without requiring re-pressing, which could cause pressing damage to the glove.

[0047] The vertical telescopic rod 13 on the push rod 6 is connected to the horizontal telescopic rod 12. The vertical telescopic rod 13 allows the horizontal telescopic rod 12 to move freely during downward movement, and also allows the push rod 6 to synchronously drive the horizontal telescopic rod 12 to move horizontally, thus avoiding interference between the structures.

[0048] The bottom of the housing 7 is fixed to the workbench 2 by a bracket. A water tank 15 is detachably installed at the center of the top of the workbench 2. A movable block is connected to the bottom of the inner wall of the water tank 15 by a first spring 16. A support plate 17 that matches the movable block is installed on the top of the movable block. Panels 18 are installed around the inner wall of the water tank 15 by fixed rods. An electric push rod 19 is connected to the panel 18. The movable rod at the bottom of the electric push rod 19 passes through the panel 18 and extends to the pressure plate 20.

[0049] Water is distributed in the water tank 15, which facilitates the subsequent airtightness test. When the glove is tested for airtightness, only the cuff needs to be clamped and fixed, while the other connections are free. This is to allow for effective inflation. In addition, the first spring 16 on the movable block can ensure that the support plate 17 can move freely up and down, which can help the glove enter the water stably.

[0050] A cylinder 21 is fixed to the bottom of the workbench 2 directly below the water tank 15. A tensioning wheel 22 is installed on the piston rod at the bottom of the cylinder 21. The outer wall of the tensioning wheel 22 abuts against the pull rope 23. Both ends of the pull rope 23 are connected to the guide holes of the first clamping plate 25 through guide wheels 24. The first clamping plate 25 is hinged to the staggered second clamping plates 26. One end of the first clamping plate 25 is connected to the side plate through a movable shaft 27. One end of the second clamping plate 26 is fixed to the side plate through a positioning pin. A return spring 28 is provided on the movable shaft 27 between the first clamping plate 25 and the side plate.

[0051] The clamping mechanism connected to cylinder 21 can clamp the middle end of the glove, thus preventing the middle end from breaking and flying off. When cylinder 21 is pulled down, tension wheel 22 drives pull rope 23 to move downward, thereby causing the first clamping plate 25 on movable shaft 27 to rotate outward, thus opening the clamping opening and allowing the glove to be placed into the clamping cavity. When cylinder 21 is pulled up, the tension of pull rope 23 is adjusted, and the first clamping plate 25 rotates inward under the elastic return action of return spring 28, thus performing effective clamping and positioning work. Moreover, the transmission components have strong synchronization performance and good positioning effect, which can ensure the safety of equipment operation.

[0052] The guide wheel 24 is symmetrically arranged with respect to the support plate 17 and is movably connected to the baffle on the top of the workbench 2. The workbench 2 has a movable groove connected to the pull rope 23. The tension wheel 22 on the pull rope 23 can effectively adjust the tension of the pull rope 23 during the up and down movement. The guide wheel 24 can prevent the pull rope 23 from deviating during the movement, thereby ensuring the accuracy of the movement. The first clamping plate 25 can be quickly closed to the clamping opening through the traction connection, thereby clamping and fixing the middle end of the glove.

[0053] A testing device for nitrile gloves also includes a trigger clamping mechanism 29. The trigger clamping mechanism 29 includes a hollow fixing block 30. One end of the fixing block 30 is integrally connected to a sleeve 31 near the support plate 17. A dual-axis motor 32 is fixedly installed on the inner wall of the fixing block 30. One end of the output shaft of the dual-axis motor 32 is connected to a turntable 33, and the other end is connected to a second lead screw 34. The protrusions around the turntable 33 are connected to a second slider 35 through a swing rod 36. One end of the second slider 35 is connected to a rectangular hole 38 near the fixed plate 37. The second slider 35 passes through the fixing block 30 and extends to the arc-shaped clamping plate 39.

[0054] Specifically, both ends of the swing arm 36 are mounted on the second slider 35 and the turntable 33 by rotational connection, and the fixed plate 37 is mounted on the inner wall of the fixed block 30 by bolt assembly. The second lead screw shaft 34 has a screw drive for the third slider 40 placed on the side wall of the fixed block 30. The third slider 40 is connected to the abutment rod 41 extending to the outside of the fixed block 30 by a U-shaped rod. The abutment rod 41 is provided with a battery box 42 that can move horizontally on the worktable 2. The outer wall of the battery box 42 has a through hole for connecting with the abutment rod 41, and the battery box 42 has a cover plate 43 that movably fits with the abutment rod 41. One end of the cover plate 43 is connected to the side wall of the battery box 42 by a second spring 44, and the other end is connected to a tapered insert rod 46 extending to the gap of the battery pack 45.

[0055] When the glove is being tested for airtightness, the battery box 42 moves to a position where it can contact and fit against the abutment rod 41. The battery box 42 is also locked in place on the workbench 2 by a positioning pin. After the dual-axis motor 32 is started, it not only fixes the cuff of the glove through the arc-shaped clamp 39, but also allows the abutment rod 41 to move against the cover plate 43 during its movement, causing the conical insert rod 46 to separate from the battery pack 45. At the same time, the battery pack 45 supplies power to the air pump 47 and the electric push rod 19. The air pump 47 inflates the glove, and as the electric push rod 19 moves the pressure plate 20 downward, the glove can be placed in the water tank 15. The airtightness of the glove can be observed by whether the water is bubbling. In addition, the location of the leak can be clearly determined by the bubbling point of the glove, effectively improving the accuracy and precision of the equipment detection and making it convenient for personnel to operate.

[0056] The battery box 42 on the workbench 2 can move horizontally and be fixed in the corresponding position by positioning pins. This design is mainly to allow the arc-shaped clamping plate 39 to perform unilateral clamping work and to simultaneously start the electric push rod 19 and the air pump 47 while the arc-shaped clamping plate 39 is working. The battery pack 45 drives the electric push rod 19 and the air pump 47 simultaneously through electrical connection. One end of the air pump 47 is connected to the air hole of the sleeve 31 through a conduit.

[0057] refer to Figure 13 A method for testing nitrile gloves, comprising the following steps:

[0058] S1.1 Place the glove on the support plate 17 and attach the cuff of the glove to the outer wall of the sleeve 31. Start the dual-axis motor 32 so that the arc-shaped clamping plate 39 clamps the cuff of the glove tightly.

[0059] S1.2 Start the drive motor 3. Under the action of the screw transmission and the meshing transmission between the gears, the clamping block 14 moves downward to clamp the fingertips of the glove and pulls them outward. With the pulling action of the pull rope 23 on the cylinder 21, the first clamping plate 25 and the second clamping plate 26 clamp the two ends of the glove, thereby completing the tensile strength test of the glove.

[0060] S1.3. Restart the dual-axis motor 32, and simultaneously clamp the arc-shaped clamping plate 39 around the cuff of the glove, and power the battery pack 45 to the electric push rod 19 and the air pump 47. During the inflation of the glove, the pressure plate 20 moves the glove downward, so that the glove is placed in the water tank 15, completing the fixed-point airtightness test of the glove.

[0061] The entire testing method is highly integrated, enabling personnel to quickly and easily carry out testing. Furthermore, it accurately assesses the product quality of nitrile gloves through tensile strength and airtightness testing, resulting in high work efficiency and testing accuracy.

[0062] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0063] 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 testing device for nitrile gloves, characterized in that, include: Tensile testing mechanism (1), the tensile testing mechanism (1) includes a drive motor (3) fixed on the workbench (2), the output shaft of the drive motor (3) is connected to a first lead screw shaft (4) distributed along the length direction of the strip groove, a first slider (5) is screwed on the first lead screw shaft (4), a push rod (6) is installed on the top of the first slider (5), one end of the push rod (6) passes through the housing (7) and extends to the outside of the housing (7); A first gear plate (8) is fixedly installed on the push rod (6). The top of the first gear plate (8) is meshed with a vertically distributed second gear plate (10) through a central rotating tooth (9). The central rotating tooth (9) is provided with a friction sleeve (11) connected to the central shaft. One end of the second gear plate (10) is fixedly connected to the horizontal telescopic rod (12). The horizontal telescopic rod (12) is connected to a sliding groove along the height direction of the housing (7). The horizontal telescopic rod (12) and the push rod (6) are connected through a vertical telescopic rod (13). One end of the horizontal telescopic rod (12) is connected to a downwardly extending clamping block (14). It also includes a trigger clamping mechanism (29), which includes a hollow fixed block (30). One end of the fixed block (30) is integrally connected to a sleeve (31) near the support plate (17), and a dual-axis motor (32) is fixedly installed on the inner wall of the fixed block (30). One end of the output shaft of the dual-axis motor (32) is connected to the turntable (33), and the other end is connected to the second lead screw shaft (34). The protrusions around the turntable (33) are connected to the second slider (35) through a swing rod (36). One end of the second slider (35) is connected to a rectangular hole (38) near the fixed plate (37), and one end of the second slider (35) passes through the fixed block (30) and extends to the arc-shaped clamping plate (39). Both ends of the swing rod (36) are mounted on the second slider (35) and the turntable (33) by means of rotational connection. The fixed plate (37) is mounted on the inner wall of the fixed block (30) by means of bolt assembly. The first gear plate (8) on the push rod (6) is intermittently set to form an intermittent gear.

2. The testing device for nitrile gloves according to claim 1, characterized in that, The bottom of the housing (7) is fixed to the workbench (2) by a bracket. A water tank (15) is detachably installed at the center of the top of the workbench (2). A movable block is connected to the bottom of the inner wall of the water tank (15) by a first spring (16). A support plate (17) is installed on the top of the movable block and is adapted to it. Panels (18) are installed around the inner wall of the water tank (15) by fixing rods. An electric push rod (19) is connected to the panel (18). The movable rod at the bottom of the electric push rod (19) passes through the panel (18) and extends to the pressure plate (20).

3. The testing device for nitrile gloves according to claim 2, characterized in that, A cylinder (21) is fixed to the bottom of the workbench (2) directly below the water tank (15). A tension wheel (22) is installed on the piston rod at the bottom of the cylinder (21). The outer wall of the tension wheel (22) is in contact with the pull rope (23). Both ends of the pull rope (23) are connected to the guide holes of the first clamping plate (25) through guide wheels (24). The first clamping plate (25) is hinged on the staggered second clamping plates (26). One end of the first clamping plate (25) is connected to the side plate through a movable shaft (27). One end of the second clamping plate (26) is fixed to the side plate through a positioning pin. A return spring (28) is provided on the movable shaft (27) between the first clamping plate (25) and the side plate.

4. The testing device for nitrile gloves according to claim 3, characterized in that, The guide wheel (24) is symmetrically arranged with respect to the support plate (17), and the guide wheel (24) is movably connected to the baffle on the top of the workbench (2). The workbench (2) has a movable groove connected to the pull rope (23).

5. The testing device for nitrile gloves according to claim 4, characterized in that, The second lead screw shaft (34) is screwed with a third slider (40) placed on the side wall of the fixed block (30). The third slider (40) is connected to an abutment rod (41) extending to the outside of the fixed block (30) via a U-shaped rod. The abutment rod (41) is provided with a battery box (42) that can move horizontally on the worktable (2). The outer wall of the battery box (42) is provided with an insertion hole that connects to the abutment rod (41). The battery box (42) is provided with a cover plate (43) that movably fits the abutment rod (41). One end of the cover plate (43) is connected to the side wall of the battery box (42) via a second spring (44), and the other end is connected to a tapered insert rod (46) extending to the gap of the battery pack (45).

6. The testing device for nitrile gloves according to claim 5, characterized in that, The battery pack (45) drives an electric push rod (19) and an air pump (47) simultaneously via an electrical connection. One end of the air pump (47) is connected to the air hole of the sleeve (31) via a conduit.

7. A method for testing nitrile gloves, applied to the testing equipment for nitrile gloves as described in claim 6, characterized in that, Includes the following steps: S1.1 Place the glove on the support plate (17) and attach the cuff of the glove to the outer wall of the sleeve (31). Start the dual-axis motor (32) so that the arc-shaped clamp (39) clamps the cuff of the glove tightly. S1.2 Start the drive motor (3). Under the action of the screw transmission and the meshing transmission between the gears, the clamping block (14) moves downward to clamp the fingertips of the glove and pulls them outward. With the pulling action of the pull rope (23) on the cylinder (21), the first clamping plate (25) and the second clamping plate (26) clamp the two ends of the glove, thereby completing the tensile strength test of the glove. S1.

3. Restart the dual-axis motor (32), and at the same time, make the arc-shaped clamp (39) clamp the cuff of the glove, and the battery pack (45) supply power to the electric push rod (19) and the air pump (47). During the inflation of the glove, the pressure plate (20) moves the glove downward, so that the glove is placed in the water tank (15) to complete the glove's fixed-point airtightness test.

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