Paper diaper tensile strength detection device and test method thereof

Abstract

The invention relates to the technical field of paper diaper tensile strength detection, in particular to a paper diaper tensile strength detection device and a test method thereof. A paper diaper tensile strength detection device comprises a stand column, the top and the bottom of the stand column are both connected with a connecting frame, and a lifting mechanism is arranged on the connecting frame. The silica gel elastic block is arranged to simulate the contact between the human skin and the surface of the paper diaper sample, and the swing mechanism is combined to drive the silica gel elastic block to swing back and forth on the surface of the sample, so that the dynamic friction effect between the skin and the paper diaper in the actual wearing process is effectively simulated; the problem of stress distribution distortion caused by neglect of friction in a traditional test is avoided, artificial sweat permeates into a sample through the silica gel elastic block, the tensile property of a paper diaper material in a wet environment is detected, the influence of sweat wetting on the fiber structure and mechanical strength of a non-woven fabric material is accurately reflected, and the test accuracy is improved. And the correlation between the test result and the actual use performance is obviously improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of paper diaper tensile strength detection, and particularly relates to a paper diaper tensile strength detection device and a testing method thereof. BACKGROUND

[0002] As an indispensable sanitary product in the daily care of infants and incontinent people, the performance of paper diapers is directly related to the comfort and safety of the users. Among them, the tensile strength is one of the important indicators to measure the mechanical properties of paper diaper materials, which reflects the ability of the product to resist breaking when subjected to external stretching. Good tensile strength can ensure the structural integrity of the paper diaper during wearing and movement, prevent damage or leakage due to excessive stretching, and thus improve the reliability and user experience of the product.

[0003] At present, the tensile strength of paper diapers is generally detected by a universal material testing machine. The standard operating procedure of this method is as follows: a strip-shaped sample of a specified size is cut from a whole paper diaper, and its two ends are firmly clamped between the upper and lower clamps of the testing machine. Then, a uniform tension is applied at a set stretching speed until the sample breaks. The maximum load and displacement data during the breaking process are recorded to calculate the mechanical parameters such as tensile strength and elongation at break. However, the above-mentioned traditional detection method has obvious limitations. The core problem is that the existing test environment is ideal laboratory conditions, which completely ignores the complex physical contact state of paper diapers in actual use scenarios. Specifically, the paper diaper is always closely attached to the human skin in the wearing state. During the crawling, turning over of infants or the movement of adults, the material will undergo dynamic stretching deformation due to body movement. In this process, the skin not only produces continuous frictional resistance to the inner surface of the paper diaper, but also the sweat secreted by the human body penetrates into the material, changing the wetting state and intermolecular force of the fiber structure, and thus affecting the mechanical response characteristics of the material. Existing studies have shown that the tensile properties of non-woven fabrics under wet conditions are significantly lower than those under dry conditions, and the presence of friction may cause local stress concentration, accelerating material fatigue and damage. Therefore, the traditional dry, frictionless, and static clamping tensile test method cannot truly reflect the mechanical performance of paper diapers in actual use, resulting in a deviation between the laboratory test results and the actual user experience. This detection blind spot may cause some products that are qualified under standard conditions to have early damage or functional failure in actual application, affecting the product reputation and safety. SUMMARY

[0004] Therefore, the present application provides a paper diaper tensile strength detection device and a testing method thereof, which can solve the problem that the traditional dry, frictionless, and static clamping tensile test method cannot truly reflect the mechanical performance of paper diapers in actual use.

[0005] Technical solution: a kind of paper diaper tensile strength detection device, including stand, the top and bottom of stand are connected with connecting frame, lifting mechanism is provided on connecting frame, two first clamps for clamping sample end are connected on lifting mechanism, lifting mechanism is used to drive first clamp to lift, first electric push rod is provided on stand, the telescopic rod of first electric push rod is connected with connecting frame, rotating frame is rotatably arranged on connecting frame, swinging mechanism for driving rotating frame to swing is provided on connecting frame, hollow frame and silica gel elastic block are connected on rotating frame, silica gel elastic block simulates human skin and sample to contact, silica gel elastic block is communicated with hollow frame inner side, water pump is installed on connecting frame, inlet of water pump is communicated with input pipe, output pipe is communicated between outlet of water pump and hollow frame, liquid is extracted into hollow frame by water pump, so that liquid is penetrated into sample by silica gel elastic block, liquid simulates sweat secreted by human body and penetrates into sample.

[0006] In one embodiment, the lifting mechanism includes a guide rod, a sliding frame and a lead screw motor, the guide rod is provided on the connecting frame, the sliding frame is slidingly arranged on the guide rod, the first clamp is connected to the sliding frame, and the lead screw motor is provided on the connecting frame, the lead screw of the lead screw motor is threadedly connected with the sliding frame.

[0007] In one embodiment, the swinging mechanism includes a servo motor, a gear and a tooth block, the servo motor is connected to the connecting frame, the output shaft of the servo motor is connected with the gear, and the tooth block is connected to the rotating frame, the tooth block is engaged with the gear.

[0008] In one embodiment, it further includes a temperature control mechanism, the temperature control mechanism includes a transparent cylinder, a transparent arc-shaped door and a heater, the transparent cylinder is installed on the side of the stand, the transparent arc-shaped door is rotatably installed on the transparent cylinder, and the heater is installed in the transparent cylinder.

[0009] In one embodiment, it further includes a second electric push rod, the second electric push rod is rotatably installed on the connecting frame, and the telescopic rod of the second electric push rod is rotatably connected with the transparent arc-shaped door.

[0010] In one embodiment, it further includes a transfer mechanism, the transfer mechanism includes a fixing frame, a third electric push rod and a second clamp, a through hole is formed in the transparent cylinder, the fixing frame is provided on the side of the stand, the third electric push rod is installed on the fixing frame, the telescopic rod of the third electric push rod is connected with the second clamp, the second clamp is used to clamp the sample to pass through the through hole and enter the transparent cylinder, and a groove is formed in the first clamp.

[0011] In one embodiment, it further includes a feeding mechanism, the feeding mechanism includes a first conveyor, a second conveyor and a third conveyor, the first conveyor, the second conveyor and the third conveyor are installed on the fixing frame, the first conveyor is used to convey the sample to move, and the second conveyor and the third conveyor are used to clamp the end of the sample to convey.

[0012] This invention also provides a method for testing the tensile strength of diapers, comprising the following steps: First, a strip sample of a specified size is cut from a whole diaper; next, both ends of the sample are fixed in two first clamps; then, a connecting frame, a rotating frame, and a silicone elastic block are driven by a first electric push rod to approach the sample until the silicone elastic block adheres tightly to the sample surface, thereby simulating the contact between human skin and the sample; next, the silicone elastic block is driven by a swinging mechanism to reciprocate, causing the silicone elastic block to rub against the sample surface, thereby simulating the friction between human skin and the sample; then, a water pump is used to draw liquid into a hollow frame through an input pipe and an output pipe, allowing the liquid in the hollow frame to penetrate into the sample through the silicone elastic block, thereby simulating the penetration of human sweat into the sample; finally, the first clamps are driven by a lifting mechanism to lift and lower, causing the first clamps on both sides to pull the two ends of the sample, thereby detecting the tensile strength of the sample to be tested, until the tensile strength of the sample is tested.

[0013] The beneficial effects are as follows: 1. This invention simulates the contact between human skin and the surface of a diaper sample by setting up a silicone elastic block, and drives the silicone elastic block to swing back and forth on the sample surface by a swinging mechanism. This effectively simulates the dynamic friction between the skin and the diaper during actual wear, avoiding the stress distribution distortion caused by neglecting friction in traditional tests. Moreover, artificial sweat is penetrated into the sample through the silicone elastic block, realizing the tensile performance test of the diaper material in a wet environment. This accurately reflects the influence of sweat wetting on the fiber structure and mechanical strength of nonwoven fabric materials, and significantly improves the correlation between the test results and actual performance.

[0014] 2. This invention, by incorporating a temperature control mechanism including a transparent cylinder, a heater, and an openable and closable transparent arc-shaped door, can adjust and maintain a set temperature in a sealed environment, simulating the temperature conditions of the human body surface, thereby achieving accurate testing of the tensile strength of diapers under high temperature and high humidity conditions, further enhancing the authenticity and reliability of experimental data.

[0015] 3. The present invention is equipped with a transfer mechanism and a feeding mechanism. The first conveyor, the second conveyor, the third conveyor and the second clamp work together to realize the orderly transportation and precise positioning of the sample to be tested. The second clamp can enter the transparent cylinder through the through hole and complete the transfer and clamping of the sample end with the help of the groove on the first clamp. The whole process is highly automated, which significantly improves the detection efficiency and reduces the error of manual operation. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2This is a three-dimensional structural diagram of the lifting mechanism of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the first electric push rod, connecting frame, and rotating frame of the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the swing mechanism of the present invention.

[0020] Figure 5 This is a structural separation diagram of the connecting frame, rotating frame, and silicone elastic block of the present invention.

[0021] Figure 6 This is a three-dimensional structural diagram of the transparent cylinder, the transparent arc-shaped door, and the second electric push rod of the present invention.

[0022] Figure 7 This is a structural separation diagram of the temperature control mechanism of the present invention.

[0023] Figure 8 This is a three-dimensional structural diagram of the transfer mechanism of the present invention.

[0024] Figure 9 This is a three-dimensional structural diagram of the feeding mechanism of the present invention.

[0025] In the attached diagram, the following labels are used: 1-Column, 2-Connecting frame, 301-Guide rod, 302-Sliding frame, 303-Screw motor, 4-First clamp, 5-First electric push rod, 6-Connecting frame, 7-Rotating frame, 801-Servo motor, 802-Gear, 803-Gear block, 9-Hollow frame, 10-Silicone elastic block, 11-Water pump, 12-Input pipe, 13-Output pipe, 14-Transparent cylinder, 15-Transparent arc-shaped door, 16-Heater, 17-Second electric push rod, 18-Through hole, 19-Fixing frame, 20-Third electric push rod, 21-Second clamp, 22-Groove, 23-First conveyor, 24-Second conveyor, 25-Third conveyor. Detailed Implementation

[0026] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0027] Example: A device and method for testing the tensile strength of diapers, see below. Figures 1-5As shown, the device includes a column 1; it also includes a connecting frame 2, a lifting mechanism, a first clamp 4, a first electric push rod 5, a connecting frame 6, a rotating frame 7, a swing mechanism, a hollow frame 9, a silicone elastic block 10, a water pump 11, an input pipe 12, and an output pipe 13; the top and bottom of the column 1 are connected to the connecting frame 2; the connecting frame 2 is equipped with a lifting mechanism, and two first clamps 4 are connected to the lifting mechanism, which are used to clamp the two ends of the sample to be tested respectively; the lifting mechanism is used to drive the first clamps 4 to move up and down, so that the two first clamps 4 move away from each other to perform a tensile test on the sample to be tested; two first electric push rods 5 are provided in the middle of the front side of the column 1, and the two first electric push rods 5 are distributed vertically; the connecting frame 6 is connected between the telescopic rods of the two first electric push rods 5; a rotating frame 7 is rotatably provided in the middle of the front side of the connecting frame 6; the connecting frame 6 is equipped with a mechanism for driving the rotation The frame 7 has a swinging mechanism; a hollow frame 9 is connected to the front of the rotating frame 7, and a silicone elastic block 10 is also connected to the front of the rotating frame 7. The silicone elastic block 10 has a permeable structure to allow liquid to penetrate. The silicone elastic block 10 is located on the front of the hollow frame 9, and the rear of the silicone elastic block 10 is connected to the front of the hollow frame 9. The silicone elastic block 10 is used to simulate human skin contacting the sample to be tested; a water pump 11 is installed on the upper front of the connecting frame 6; the front end of the input pipe 12 is connected to the inlet of the water pump 11, and the rear end of the input pipe 12 passes through the connecting frame 6 and the column 1; the rear end of the output pipe 13 is connected to the outlet of the water pump 11, and the front end of the output pipe 13 passes through the top of the rotating frame 7 and connects to the hollow frame 9. The water pump 11 draws liquid into the hollow frame 9, allowing the liquid to penetrate into the sample to be tested through the silicone elastic block 10, thereby simulating the permeation of human sweat into the sample to be tested.

[0028] See Figure 1 and Figure 2 As shown, the lifting mechanism includes a guide rod 301, a sliding frame 302, and a screw motor 303; a guide rod 301 is provided on the front right side of each of the two connecting frames 2; a sliding frame 302 is slidably mounted on each of the two guide rods 301, and two first clamps 4 are respectively connected to the two sliding frames 302; a screw motor 303 is provided on the front left side of each of the two connecting frames 2, and the screws of the two screw motors 303 are respectively threadedly connected to the two sliding frames 302.

[0029] See Figure 4 and Figure 5 As shown, the swing mechanism includes a servo motor 801, a gear 802, and a gear block 803; the servo motors 801 are symmetrically arranged on the left and right sides of the front side of the connecting frame 6; the output shafts of the two servo motors 801 are connected to the gears 802; the gear blocks 803 are symmetrically connected on the left and right sides of the rotating frame 7, and the gear blocks 803 mesh with the gears 802.

[0030] In use, firstly, a strip of the specified size to be tested is cut from a whole diaper. Then, both ends of the sample are placed into the first clamps 4 on both sides. Next, the first clamps 4 on both sides clamp the two ends of the sample. Then, the rear end of the input tube 12 is connected to the container containing artificial sweat. Then, the first electric push rod 5 drives the connecting frame 6, the rotating frame 7, and the silicone elastic block 10 to move forward until the silicone elastic block 10 is pressed against the surface of the sample, thus simulating the contact between human skin and the sample. Then, the servo motor 801 is started to drive the gear 802 to rotate intermittently forward and backward, so that the gear 802 drives the tooth block 803 to rotate intermittently forward and backward, thereby causing the rotating frame 7 and the silicone elastic block 10 to swing up and down, so that the silicone elastic block 10 rubs against the surface of the sample. The process simulates the frictional contact between human skin and the sample under test. Then, the water pump 11 is activated to draw artificial sweat into the hollow frame 9 through the input pipe 12 and output pipe 13. The artificial sweat in the hollow frame 9 then permeates into the sample under test through the silicone elastic block 10, simulating the permeation of human sweat into the sample. Next, the lead screw motors 303 on both sides drive the sliding frames 302 on both sides to move away from each other, thereby causing the first clamps 4 to move away from each other. This pulls the two ends of the sample under test, thus testing the tensile strength of the sample. Through this series of simulations, the mechanical performance of the diaper in actual use can be more accurately reflected, reducing the discrepancy between laboratory test results and actual user experience, and thus improving the accuracy of the test. After the tensile strength test of the sample is completed, the water pump 11 and servo motor 801 are turned off. Then, the connecting frame 6, rotating frame 7 and silicone elastic block 10 are driven to move backward and reset by the first electric push rod 5. Then, the first clamps 4 on both sides are controlled to release the sample and the sample is removed from the first clamp 4. After that, the sliding frames 302 on both sides are driven to move to the side that is closer to each other by the lead screw motors 303 on both sides, thereby driving the first clamps 4 to move closer to each other.

[0031] See Figure 6 and Figure 7 As shown, it also includes a temperature control mechanism, which includes a transparent cylinder 14, a transparent arc-shaped door 15, and a heater 16; the transparent cylinder 14 is installed on the front side of the column 1, and the sliding brackets 302 on the upper and lower sides slide through the top and bottom of the transparent cylinder 14 respectively. A square hole is opened on the rear side of the transparent cylinder 14, which is used for the connecting bracket 6 to pass through and enter the transparent cylinder 14; the transparent arc-shaped door 15 is rotatably installed on the transparent cylinder 14; heaters 16 are installed at intervals on the rear side of the transparent cylinder 14.

[0032] By setting a temperature control mechanism, during use, the transparent arc-shaped door 15 can be pulled to open, and then both ends of the sample to be tested can be placed into the first clamps 4 on both sides. After the first clamps 4 on both sides clamp the two ends of the sample to be tested, the transparent arc-shaped door 15 can be pushed to close in reverse. Then, the air inside the transparent cylinder 14 can be heated by the heater 16 to increase the temperature inside the transparent cylinder 14 until the temperature inside the transparent cylinder 14 is close to the temperature of the diaper worn on the human body (the temperature of the diaper worn on the human body can be obtained by averaging multiple data measurements). In this way, the operator can easily test the tensile strength of the sample to be tested at a specified temperature, thereby further improving the accuracy of the test. After the tensile strength of the sample to be tested is completed, the transparent arc-shaped door 15 can be pulled to open again. After the sample to be tested is removed from the first clamp 4, the transparent arc-shaped door 15 can be pushed to close in reverse again.

[0033] See Figure 6 and Figure 7 As shown, it also includes a second electric push rod 17; the two connecting frames 2 are rotatably equipped with a second electric push rod 17 on the side near the column 1, and the telescopic rods of the two second electric push rods 17 are rotatably connected to the transparent arc-shaped door 15.

[0034] By setting a second electric push rod 17, when the operator needs to pull the transparent arc-shaped door 15 to rotate and open, the telescopic rod of the second electric push rod 17 can be controlled to shorten, so that the telescopic rod of the second electric push rod 17 pulls the transparent arc-shaped door 15 to rotate and open; when the operator needs to push the transparent arc-shaped door 15 to reverse and close, the telescopic rod of the second electric push rod 17 can be controlled to extend, so that the telescopic rod of the second electric push rod 17 pushes the transparent arc-shaped door 15 to reverse and close. In this way, the operator can easily operate the opening and closing of the transparent arc-shaped door 15.

[0035] See Figure 8 and Figure 9 As shown, it also includes a transfer mechanism, which includes a fixed frame 19, a third electric push rod 20, and a second clamp 21; a through hole 18 is opened on the right side of the transparent tube 14; a fixed frame 19 is provided on the right side of the column 1; a third electric push rod 20 is installed on the lower front side of the fixed frame 19; the second clamp 21 is connected to the telescopic rod of the third electric push rod 20, and the second clamp 21 is used to clamp the sample through the through hole 18 into the transparent tube 14; the first clamp 4 has symmetrically opened grooves 22 in the front and back, and the grooves 22 are used for the second clamp 21 to move.

[0036] See Figure 8 and Figure 9As shown, it also includes a feeding mechanism, which includes a first conveyor 23, a second conveyor 24, and a third conveyor 25. The first conveyor 23 is installed on the upper front side of the fixed frame 19. The first conveyor 23 is used to transport the sample to be tested for movement. The first conveyor 23 is a belt conveyor. The second conveyor 24 and the third conveyor 25 are also installed on the upper front side of the fixed frame 19. The second conveyor 24 and the third conveyor 25 are both belt conveyors. The second conveyor 24 and the third conveyor 25 are both located behind the first conveyor 23. The second conveyor 24 and the third conveyor 25 are distributed vertically. The second conveyor 24 and the third conveyor 25 are used to clamp the end of the sample for transport.

[0037] By setting up a transfer mechanism and a feeding mechanism, during use, the sample to be tested can be placed flat on the top right side of the belt of the first conveyor 23 (with the end of the sample placed in a front-to-back direction), and the top of the sample to be tested can be gently pressed down by hand. Then, the first conveyor 23, the second conveyor 24, and the third conveyor 25 are started, so that the first conveyor 23 transports the sample to be tested to the left until the rear end of the sample to be tested enters between the belts of the second conveyor 24 and the third conveyor 25. The rear end of the sample to be tested is then clamped by the belts of the second conveyor 24 and the third conveyor 25. Then, the first conveyor 23, the second conveyor 24, and the third conveyor 25 are turned off, and the pressure on the top of the sample to be tested is released. The process is repeated, with the specified number of samples to be tested being clamped sequentially by the belts of the second conveyor 24 and the third conveyor 25, while the belt of the first conveyor 23 supports the specified number of samples. When it is necessary to fix both ends of the sample to be tested in the first clamps 4 on both sides for loading, simply start the first conveyor 23, the second conveyor 24, and the third conveyor 25 to transport the sample to be tested to the left until the sample is separated from the belt of the first conveyor 23. At this point, because the rear end of the sample is clamped by the belts of the second conveyor 24 and the third conveyor 25, Therefore, the sample to be tested will fall into the second clamp 21 due to gravity. Then, the first conveyor 23, the second conveyor 24, and the third conveyor 25 are turned off, and the grippers of the second clamp 21 are controlled to clamp the sample to be tested. Then, the third electric push rod 20 drives the second clamp 21 to move to the left, so that the second clamp 21 holding the sample to be tested moves to the left, thereby allowing the second clamp 21 to hold the sample to be tested through the through hole 18 and into the transparent cylinder 14. During this process, the end of the sample to be tested will leave between the belts of the second conveyor 24 and the third conveyor 25 until the second clamp 21 holds the sample to be tested in the first clamp 4. Then, the first clamp 4 is controlled to clamp the end of the sample to be tested, so that the second clamp 21 holds the sample to be tested through the through hole 18 and into the transparent cylinder 14. The second clamp 21 is positioned within the groove 22 of the first clamp 4. Then, the gripper of the second clamp 21 is controlled to retract and release the sample to be tested within the groove 22. The second clamp 21 is then driven to move to the right and reset via the third electric push rod 20, causing the second clamp 21 to leave the groove 22. The gripper of the second clamp 21 is then reset, and the through hole 18 is sealed with a seal (the seal is existing technology and will not be described in detail) to prevent the hot air in the transparent tube 14 from leaking out through the through hole 18 (the seal can be removed before the next use). In this way, the automatic feeding of the sample to be tested can be completed, making it convenient for the operator to fix both ends of the sample to be tested in the first clamp 4 on both sides.

[0038] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for testing the tensile strength of diapers, comprising a column (1), characterized in that, The top and bottom of the column (1) are connected to a connecting frame (2). A lifting mechanism is provided on the connecting frame (2). Two first clamps (4) for clamping the ends of the sample are connected to the lifting mechanism. The lifting mechanism is used to drive the first clamps (4) to lift. A first electric push rod (5) is provided on the column (1). A connecting frame (6) is connected to the telescopic rod of the first electric push rod (5). A rotating frame (7) is rotatably provided on the connecting frame (6). A swinging mechanism for driving the rotating frame (7) to swing is provided on the connecting frame (6). A hollow frame is connected to the rotating frame (7). (9) and silicone elastic block (10), the silicone elastic block (10) simulates human skin contacting the sample, the silicone elastic block (10) is connected to the inside of the hollow frame (9), a water pump (11) is installed on the connecting frame (6), the inlet of the water pump (11) is connected to the input pipe (12), the outlet of the water pump (11) is connected to the hollow frame (9) and the output pipe (13) is connected to the hollow frame (9), the liquid is pumped into the hollow frame (9) by the water pump (11), so that the liquid permeates into the sample through the silicone elastic block (10), and the liquid simulates the sweat secreted by the human body permeating into the sample.

2. The diaper tensile strength testing device as described in claim 1, characterized in that, The lifting mechanism includes a guide rod (301), a sliding frame (302) and a screw motor (303). The guide rod (301) is provided on the connecting frame (2), and the sliding frame (302) is slidably provided on the guide rod (301). The first clamp (4) is connected to the sliding frame (302). The screw motor (303) is provided on the connecting frame (2), and the screw of the screw motor (303) is threadedly connected to the sliding frame (302).

3. The diaper tensile strength testing device as described in claim 1, characterized in that, The swing mechanism includes a servo motor (801), a gear (802) and a toothed block (803). The servo motor (801) is connected to the connecting frame (6), the gear (802) is connected to the output shaft of the servo motor (801), and the toothed block (803) is connected to the rotating frame (7). The toothed block (803) meshes with the gear (802).

4. The diaper tensile strength testing device as described in claim 1, characterized in that, It also includes a temperature control mechanism, which includes a transparent cylinder (14), a transparent arc door (15) and a heater (16). The transparent cylinder (14) is installed on the side of the column (1), and the transparent arc door (15) is rotatably installed on the transparent cylinder (14). The heater (16) is installed inside the transparent cylinder (14).

5. The diaper tensile strength testing device as described in claim 4, characterized in that, It also includes a second electric push rod (17), which is rotatably mounted on the connecting frame (2), and the telescopic rod of the second electric push rod (17) is rotatably connected to the transparent arc door (15).

6. The diaper tensile strength testing device as described in claim 1, characterized in that, It also includes a transfer mechanism, which includes a fixed frame (19), a third electric push rod (20) and a second clamp (21). A through hole (18) is provided on the transparent tube (14). A fixed frame (19) is provided on the side of the column (1). A third electric push rod (20) is installed on the fixed frame (19). A second clamp (21) is connected to the telescopic rod of the third electric push rod (20). The second clamp (21) is used to clamp the sample through the through hole (18) and enter the transparent tube (14). A groove (22) is provided on the first clamp (4).

7. The diaper tensile strength testing device as described in claim 6, characterized in that, It also includes a feeding mechanism, which includes a first conveyor (23), a second conveyor (24) and a third conveyor (25). The first conveyor (23), the second conveyor (24) and the third conveyor (25) are installed on the fixed frame (19). The first conveyor (23) is used to transport the sample for movement, while the second conveyor (24) and the third conveyor (25) are used to clamp the end of the sample for transport.

8. A method for testing the tensile strength of a diaper, using the diaper tensile strength testing device described in claim 1, characterized in that... The process includes the following steps: First, a strip sample of a specified size is cut from a whole diaper; then, both ends of the sample are fixed in two first clamps (4); subsequently, the connecting frame (6), rotating frame (7), and silicone elastic block (10) are driven close to the sample by the first electric push rod (5) until the silicone elastic block (10) is pressed against the sample surface, thereby simulating the contact between human skin and the sample; next, the silicone elastic block (10) is driven to reciprocate by the swing mechanism, so that the silicone elastic block (10) rubs against the sample surface. This simulates the friction between human skin and the sample. Then, a water pump (11) is used to pump liquid into the hollow frame (9) through the input pipe (12) and the output pipe (13), so that the liquid in the hollow frame (9) can penetrate into the sample through the silicone elastic block (10), thus simulating the penetration of human sweat into the sample. Next, the first clamp (4) is driven to rise and fall by the lifting mechanism, so that the first clamps (4) on both sides pull the two ends of the sample, thereby detecting the tensile strength of the sample to be tested until the tensile strength of the sample is tested.

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