A device for detecting the tear resistance of a sheet

Abstract

The application relates to the technical field of tensile test, and discloses a kind of paper tearing resistance detection devices, comprising: base;Two groups of symmetrically installed on the base tensile mechanism;Combined humidity adjusting mechanism connected on clamping assembly;Three-dimensional moving platform installed on the base and dripper installed on three-dimensional moving platform;The application is provided with combined humidity adjusting mechanism outside tensile mechanism, can form a sealed chamber outside paper before tension detection to the paper to be measured, and carry out humidity adjustment, so as to simulate and obtain the tearing resistance parameter of paper in different humidity environment in actual use process, and three-dimensional moving platform and dripper capable of quantitative dropping different liquids are matched, the tearing resistance parameter of paper in different position of paper can be further simulated when different amount of liquids such as water and oil exist in the set environment, the tearing resistance parameter of paper in different conditions can be truly obtained, so as to improve the use reliability of paper product.

Description

Technical Field

[0001] This invention relates to the field of tensile strength testing technology, and more specifically, to a device for testing the tear resistance of tissue paper. Background Technology

[0002] Facial tissues, also known as boxed tissues or paper tissues, are boxed daily-use paper towels made from wood pulp, bamboo pulp, and other raw materials. Their design features allow users to pull out a single sheet from a small opening in the box or bag to take out the next sheet. They are widely used for daily cleaning and in places such as restaurants, entertainment venues, and cars.

[0003] When tissues are first opened and pulled out, the number of tissues inside the packaging is the largest, and the frictional resistance generated by squeezing is also the greatest. The tear resistance of the paper is an important parameter to ensure that the initial tissues can be pulled out smoothly without breaking or tearing. Currently, during the production and design process of tissues, tensile tests are conducted on the finished products to ensure that the tissues under the current material and design parameters can achieve the corresponding tear resistance. However, in daily use, due to different usage environments, the paper will be in different humidity states, and the range and degree of moisture of a single tissue will directly affect its tear resistance. Currently, conventional testing methods are mostly conducted in a single environment, which cannot effectively simulate the humidity conditions that may occur in real use environments. This may cause the tissues to be unable to be pulled out smoothly, affecting the user experience and reducing brand credibility. Summary of the Invention

[0004] The purpose of this invention is to provide a device for testing the tear resistance of tissue paper in order to solve the above-mentioned problems.

[0005] This invention provides a device for testing the tear resistance of tissue paper, comprising: Base; Two sets of tension mechanisms are symmetrically installed on the base. Each tension mechanism includes a linear motion component, a tension detection component connected to the linear motion component, and a clamping component connected to the tension detection component. The clamping component is used to clamp a set area of ​​the tissue paper. The linear motion component is used to drive the tension detection component and the clamping component to move synchronously. The tension detection component is used to obtain the tension change value of the tissue paper. A combined humidity regulating mechanism connected to a clamping assembly includes a telescopic sealing assembly connected to the clamping assembly, a humidity regulating assembly disposed on the telescopic sealing assembly, and a limiting assembly mounted on a base. The other end of the telescopic sealing assembly is slidably connected to the base, and the limiting assembly is used to limit and fix the other end of the telescopic sealing assembly to a set position on the base. When the other ends of the two telescopic sealing assemblies come into contact with each other, a sealed chamber is formed outside the two sets of clamping assemblies. The humidity regulating assembly is used to adjust the humidity parameters inside the sealed chamber.

[0006] As a further optimization of the present invention, the linear motion component includes a mounting bracket and an electric telescopic rod detachably connected to the mounting bracket. The mounting bracket is fixedly connected to the base, and the electric telescopic rod is arranged along the length direction of the base.

[0007] As a further optimization of the present invention, the tension detection component includes a tension sensor, one end of which is detachably connected to the electric telescopic rod, and the other end is detachably connected to the clamping component.

[0008] As a further optimization of the present invention, the clamping assembly includes a mounting frame, a fixed clamping plate fixedly connected to the mounting frame, a movable clamping plate slidably connected to the mounting frame, a motor fixedly connected to the mounting frame, and a lead screw connected to the output shaft end of the motor. The lead screw is threadedly connected to the fixed clamping plate. The mounting frame is detachably connected to the other end of the tension sensor. Both the fixed clamping plate and the movable clamping plate are horizontally arranged, and the movable clamping plate is located directly above the fixed clamping plate.

[0009] As a further optimization of the present invention, the telescopic sealing assembly includes a sealing sleeve, a U-shaped plate connected to the sealing sleeve, a telescopic tube connected to the U-shaped plate, and a sliding frame connected to the other end of the telescopic tube. The sealing sleeve is fixedly connected to the mounting frame, and the tension sensor is located inside the sealing sleeve. The sliding frame is slidably connected to the base. When the two sets of sliding frames come into contact with each other, a sealed chamber is formed between the two sets of sealing sleeves, the U-shaped plate, the telescopic tube, the sliding frame, and the mounting frame.

[0010] As a further optimization of the present invention, the humidity regulating component includes an external pipe, an atomizing nozzle connected to one end of the external pipe, and a humidity sensor. The atomizing nozzle and the humidity sensor are both fixedly installed on the inner wall of the sliding frame, and one end of the external pipe passes through the sliding frame and is connected to the external pipe.

[0011] As a further optimization of the present invention, the limiting component includes a slide rail on the base, a second motor fixedly installed at the bottom of the base, a limiting block slidably connected in the slide rail, a second lead screw connected to the output shaft end of the second motor, and a limiting groove on the sliding frame. The limiting groove is configured to cooperate with the limiting block, and the limiting block is threadedly connected to the second lead screw.

[0012] As a further optimization of the present invention, it also includes a three-dimensional moving platform installed on the base and a dripper installed on the three-dimensional moving platform. The three-dimensional moving platform includes two sets of linear moving components two symmetrically installed on the base, a linear moving component three installed on the linear moving component two, and a linear moving component four installed on the linear moving component three. The linear moving component two is arranged along the width direction of the base, the linear moving component three is arranged along the length direction of the base, and the linear moving component four is arranged along the height direction of the base.

[0013] As a further optimization of the present invention, the linear motion component two includes a horizontal track one, a slider one slidably connected to the horizontal track one, a screw one movably connected to the horizontal track one, and a motor three fixedly connected to the horizontal track one. The output shaft end of the motor three is connected to the screw one, and the slider one is threadedly connected to the screw one. The linear motion component three includes a horizontal rail two, a slider two slidably connected to the horizontal rail two, a screw two movably connected to the horizontal rail two, and a motor four fixedly connected to the horizontal rail two. The output shaft end of the motor four is connected to the screw two, the slider two is threadedly connected to the screw two, and both sets of slider one are connected to the horizontal rail two. The linear motion component four includes a vertical track, a slider three slidably connected to the vertical track, a screw three movably connected to the vertical track, and a motor five fixedly connected to the vertical track. The output shaft end of the motor five is connected to the screw three, the slider three is threadedly connected to the screw three, the vertical track is connected to the slider two, and the drip head is detachably installed on the slider three.

[0014] As a further optimization of the present invention, the input end of the dripper is connected to a flow control valve, and the input end of the flow control valve is connected to a liquid delivery pipeline.

[0015] The beneficial effects of this invention are as follows: This invention incorporates a combined humidity adjustment mechanism outside the tension mechanism, which can form a sealed chamber outside the tissue paper before tension testing. The humidity inside the sealed chamber can be precisely adjusted to simulate and obtain the tear resistance parameters of the tissue paper in different humidity environments during actual use. Furthermore, it is equipped with a three-dimensional moving platform and drippers that can quantitatively drip different liquids, which can further simulate the tear resistance parameters of the tissue paper in a set environment when different amounts of liquids such as water and oil are present at different locations on the tissue paper. This allows for the accurate acquisition of the tear resistance parameters of the tissue paper under different conditions, thereby improving the reliability of the tissue paper product. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2This is a view showing the cooperation between the tension mechanism and the combined humidity control mechanism of the present invention; Figure 3 This is the invention Figure 1 A partial sectional view; Figure 4 This is the invention Figure 3 An enlarged view of point A in the image; Figure 5 This is the invention Figure 3 An enlarged view of point B in the image.

[0017] In the diagram: 1. Base; 2. Tension mechanism; 201. Mounting bracket; 202. Electric telescopic rod; 203. Tension sensor; 204. Mounting frame; 205. Fixed clamp; 206. Moving clamp; 207. Motor 1; 208. Lead screw 1; 3. Combined humidity control mechanism; 301. Sealing sleeve; 302. U-shaped plate; 303. Telescopic tube; 304. Sliding frame; 305. External pipe; 306. Atomizer 307. Nozzle; 308. Limiting groove; 309. Limiting block; 310. Motor II; 311. Lead screw II; 4. Three-dimensional moving platform; 401. Horizontal track I; 402. Slider I; 403. Screw I; 404. Motor III; 405. Horizontal track II; 406. Slider II; 407. Screw II; 408. Motor IV; 409. Vertical track; 410. Slider III; 411. Screw III; 412. Motor V; 5. Dripping head. Detailed Implementation

[0018] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed merely to enable those skilled in the art to better understand and implement the subject matter described herein. Furthermore, features described in some examples may be combined in other examples.

[0019] like Figures 1 to 5 As shown, a tissue tear resistance testing device includes: Base 1; Two sets of tension mechanisms 2 are symmetrically installed on the base 1. Each tension mechanism 2 includes a linear motion component 1, a tension detection component connected to the linear motion component 1, and a clamping component connected to the tension detection component. The clamping component is used to clamp the set area of ​​the tissue paper. The linear motion component 1 is used to drive the tension detection component and the clamping component to move synchronously. The tension detection component is used to obtain the tension change value of the tissue paper. A combined humidity regulating mechanism 3 is connected to the clamping assembly. The combined humidity regulating mechanism 3 includes a telescopic sealing assembly connected to the clamping assembly, a humidity regulating assembly disposed on the telescopic sealing assembly, and a limiting assembly mounted on the base 1. The other end of the telescopic sealing assembly is slidably connected to the base 1. The limiting assembly is used to limit and fix the other end of the telescopic sealing assembly at a set position on the base 1. When the other ends of the two telescopic sealing assemblies come into contact with each other, a sealed chamber is formed outside the two sets of clamping assemblies. The humidity regulating assembly is used to adjust the humidity parameters inside the sealed chamber.

[0020] It should be noted that when testing the tissue paper, the limiting component is in the reset state, and the contacting ends of the two symmetrically arranged telescopic sealing components are in a sliding state. At this time, the two are separated, exposing the clamping component. The tissue paper to be tested is placed on the clamping component, which clamps the tissue paper in the designated area. The telescopic sealing components are then reassembled to form a sealed chamber around the tissue paper. The humidity adjustment component obtains the humidity data in the sealed chamber in real time and adjusts the humidity data in real time until the current humidity data reaches the set value. After a preset time, the symmetrically arranged linear moving component pulls the tension detection component synchronously, causing the clamping component to move synchronously. The two clamping components move away from each other and apply tension to the tissue paper. The tension detection component obtains the current tension value in real time to obtain the current tension change value of the paper, thereby realistically simulating the actual tear resistance parameters of the tissue paper in different humidity environments.

[0021] In an optional embodiment of the invention, such as Figures 1 to 4 As shown, the linear motion component includes a mounting bracket 201 and an electric telescopic rod 202 detachably connected to the mounting bracket 201. The mounting bracket 201 is fixedly connected to the base 1, and the electric telescopic rod 202 is arranged along the length direction of the base 1.

[0022] The tension detection component includes a tension sensor 203, one end of which is detachably connected to the electric telescopic rod 202, and the other end is detachably connected to the clamping component.

[0023] The clamping assembly includes a mounting frame 204, a fixed clamping plate 205 fixedly connected to the mounting frame 204, a movable clamping plate 206 slidably connected to the mounting frame 204, a motor 207 fixedly connected to the mounting frame 204, and a lead screw 208 connected to the output shaft end of the motor 207. The lead screw 208 is threadedly connected to the fixed clamping plate 205. The mounting frame 204 is detachably connected to the other end of the tension sensor 203. Both the fixed clamping plate 205 and the movable clamping plate 206 are horizontally arranged, and the movable clamping plate 206 is located directly above the fixed clamping plate 205.

[0024] It should be noted that, as described above, when a stable pulling force is applied to the tissue paper, the electric telescopic rod 202 retracts stably, driving the tension sensor 203 to move synchronously. As the tissue paper clamped between the fixed clamping plate 205 and the moving clamping plate 206 begins to be subjected to force and generate corresponding tension, the tension sensor 203 begins to acquire tension change values. The electric telescopic rod 202 stops moving when the tissue paper is damaged or the tension sensor 203 acquires a preset tension value. At this point, the limit component can be controlled to reset, the telescopic sealing component can be opened, and the actual image parameters of the current tissue paper can be recorded. This records the changes in parameters of the tissue paper when it reaches the preset tension value, including changes in its length and thickness. When the clamping component clamps and releases the tissue paper, it drives the lead screw 208 to rotate via the motor 207. Since the movable clamping plate 206 is slidably connected to the mounting frame 204 and threadedly connected to the lead screw 208, when the lead screw 208 rotates, it can drive the movable clamping plate 206 to move toward or away from the fixed clamping plate 205. When the two are close to each other, they can limit and clamp the set area of ​​the tissue paper. When the two are far apart, the tissue paper can be released.

[0025] In an optional embodiment of the invention, such as Figures 1 to 5 As shown, the telescopic sealing assembly includes a sealing sleeve 301, a U-shaped plate 302 connected to the sealing sleeve 301, a telescopic tube 303 connected to the U-shaped plate 302, and a sliding frame 304 connected to the other end of the telescopic tube 303. The sealing sleeve 301 is fixedly connected to the mounting frame 204, and the tension sensor 203 is located inside the sealing sleeve 301. The sliding frame 304 is slidably connected to the base 1. When the two sets of sliding frames 304 are in contact with each other, a sealed chamber is formed between the two sets of sealing sleeves 301, U-shaped plate 302, telescopic tube 303, sliding frame 304, and mounting frame 204.

[0026] It should be noted that, as mentioned above, when the two sets of telescopic sealing components approach and contact each other, the two sets of sliding frames 304 are in contact with each other. When clamping tissue paper, the sliding frames 304 can be compressed towards the U-shaped plate 302, thereby exposing the two sets of clamping components for easy clamping of the tissue paper. After the tissue paper clamping is completed, when the two sets of sliding frames 304 approach and contact each other, the limiting components limit and fix the sliding frames 304, thereby keeping the sliding frames 304 stably in a tight contact state. At this time, the sealing sleeve... A stable sealed chamber is formed between the cylinder 301, the U-shaped plate 302, the telescopic tube 303, the sliding frame 304, and the mounting frame 204. The tension sensor 203 is located outside the sealed chamber. During the retraction of the electric telescopic rod 202, the tension sensor 203 and the mounting frame 204 can be pulled back. When the mounting frame 204 moves, it can drive the sealing sleeve 301 and the U-shaped plate 302 to move synchronously, which can ensure that the sealed chamber is in a stable sealed state and does not affect the movement of the clamping components.

[0027] In an optional embodiment of the invention, such as Figure 2 and Figure 3 As shown, the humidity regulating component includes an external pipe 305, an atomizing nozzle 306 connected to one end of the external pipe 305, and a humidity sensor. The atomizing nozzle 306 and the humidity sensor are both fixedly installed on the inner wall of the sliding frame 304. One end of the external pipe 305 passes through the sliding frame 304 and is connected to the external pipe 305.

[0028] It should be noted that, as mentioned above, when the two sets of sliding frames 304 come into contact and are fixed by the limiting components, the humidity data of the current sealed chamber can be obtained in real time through the humidity sensor. Water is then transported into the external humidity regulating device connected to the external pipe 305, and sprayed into the sealed chamber through the atomizing nozzle 306, thereby regulating the air humidity in the sealed chamber. After the humidity reaches the set value, the atomizing spraying stops, and the electric telescopic rod 202 is activated after a preset time. During this process, the humidity sensor can monitor the humidity change in real time to ensure that the paper is placed in the set humidity environment for a set time. The set time is adjustable to ensure the accuracy and diversity of the simulation parameters, which can further improve the accuracy of the detection parameters.

[0029] In an optional embodiment of the invention, such as Figure 3 and Figure 5As shown, the limiting component includes a slide rail on the base 1, a second motor 309 fixedly installed at the bottom of the base 1, a limiting block 308 slidably connected in the slide rail, a second lead screw 310 connected to the output shaft end of the second motor 309, and a limiting groove 307 on the sliding frame 304. The limiting groove 307 is configured to cooperate with the limiting block 308, and the limiting block 308 is threadedly connected to the second lead screw 310.

[0030] It should be noted that, as mentioned above, when the sliding frames 304 come into contact with each other, the limiting groove 307 on the sliding frame 304 overlaps with the slide rail on the base 1. At this time, the second motor 309 can drive the second lead screw 310 to rotate. When the second lead screw 310 rotates, it can drive the limiting block 308 to move toward the limiting groove 307. When the limiting block 308 enters the limiting groove 307, the sliding frame 304 can be limited and fixed. After the limiting block 308 moves back to reset, the sliding frame 304 is released from the limiting state.

[0031] In an optional embodiment of the invention, such as Figures 1 to 3 As shown, it also includes a three-dimensional moving platform 4 installed on the base 1 and a dripper 5 installed on the three-dimensional moving platform 4. The three-dimensional moving platform 4 includes two sets of linear moving components 2 symmetrically installed on the base 1, a linear moving component 3 installed on the linear moving component 2, and a linear moving component 4 installed on the linear moving component 3. The linear moving component 2 is arranged along the width direction of the base 1, the linear moving component 3 is arranged along the length direction of the base 1, and the linear moving component is arranged along the height direction of the base 1.

[0032] The second linear motion component includes a horizontal track 401, a slider 402 slidably connected to the horizontal track 401, a screw 403 movably connected to the horizontal track 401, and a motor 404 fixedly connected to the horizontal track 401. The output shaft end of the motor 404 is connected to the screw 403, and the slider 402 is threadedly connected to the screw 403. The linear motion component three includes a horizontal track two 405, a slider two 406 slidably connected to the horizontal track two 405, a screw two 407 movably connected to the horizontal track two 405, and a motor four 408 fixedly connected to the horizontal track two 405. The output shaft end of the motor four 408 is connected to the screw two 407, the slider two 406 is threadedly connected to the screw two 407, and both sets of slider one 402 are connected to the horizontal track two 405. The linear motion component four includes a vertical track 409, a slider three 410 slidably connected to the vertical track 409, a screw three 411 movably connected to the vertical track 409, and a motor five 412 fixedly connected to the vertical track 409. The output shaft end of the motor five 412 is connected to the screw three 411. The slider three 410 is threadedly connected to the screw three 411. The vertical track 409 is connected to the slider two 406. The drip head 5 is detachably installed on the slider three 410.

[0033] The input end of the dripper 5 is connected to a flow control valve, and the input end of the flow control valve is connected to a liquid delivery pipeline.

[0034] It should be noted that, to further enhance the dimensionality of the simulation parameters and better reflect real-world scenarios that may occur during actual use, the three-dimensional moving platform 4 can drive the dripping head 5 to drip water, oil, or other liquids that may appear in real-world scenarios onto the clamped tissue paper at specific points and in specific quantities. This allows for tear resistance testing of the tissue paper in a set humidity environment when liquid is present on it. Specifically, during the precise and quantitative dripping of liquid, motor 3 404 drives screw 1 403 to rotate. When screw 1 403 rotates, it drives slider 1 402 to move along the width direction of base 1, and simultaneously moves the horizontal track 2 405 connected to it. During this process, motor 408 drives screw 2 407 to rotate, thereby driving slider 2 406 to move along... The base 1 moves along its length, causing the vertical track 409 to move synchronously. The motor 412 drives the screw 411 to rotate. When the screw 411 rotates, it drives the slider 410 to move along the height of the base 1, causing the drip head 5 to move synchronously. The three can operate independently or synchronously, thereby adjusting the three-dimensional coordinates of the drip head 5 in one-dimensional, two-dimensional, or three-dimensional directions. This process can traverse the area of ​​the tissue paper to be tested, thus achieving point-to-point dripping. The dripping amount is precisely controlled by the flow control valve on the drip head 5. When the drip head 5 is at different heights above the tissue paper, the impact force of the dripping liquid on the tissue paper is also different. The influence of the liquid dripping at different heights on the tear resistance of the tissue paper can be detected and data collected.

[0035] The above description of this embodiment is not limited to the specific implementation described above. The specific implementation described above is merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of this embodiment, all of which are within the protection scope of this embodiment.

Claims

1. A device for testing the tear resistance of tissue paper, characterized in that, include: Base (1); Two sets of tension mechanisms (2) are symmetrically installed on the base (1). The tension mechanism (2) includes a linear motion component, a tension detection component connected to the linear motion component, and a clamping component connected to the tension detection component. The clamping component is used to clamp the set area of ​​the tissue paper. The linear motion component is used to drive the tension detection component and the clamping component to move synchronously. The tension detection component is used to obtain the tension change value of the tissue paper. A combined humidity regulating mechanism (3) is connected to the clamping assembly. The combined humidity regulating mechanism (3) includes a telescopic sealing assembly connected to the clamping assembly, a humidity regulating assembly disposed on the telescopic sealing assembly, and a limiting assembly installed on the base (1). The other end of the telescopic sealing assembly is slidably connected to the base (1). The limiting assembly is used to limit and fix the other end of the telescopic sealing assembly to a set position on the base (1). When the other ends of the two telescopic sealing assemblies come into contact with each other, a sealed chamber is formed outside the two sets of clamping assemblies. The humidity regulating assembly is used to adjust the humidity parameters in the sealed chamber.

2. The tissue tear resistance testing device according to claim 1, characterized in that, The linear motion component includes a mounting bracket (201) and an electric telescopic rod (202) detachably connected to the mounting bracket (201). The mounting bracket (201) is fixedly connected to the base (1), and the electric telescopic rod (202) is arranged along the length direction of the base (1).

3. The tissue tear resistance testing device according to claim 2, characterized in that, The tension detection assembly includes a tension sensor (203), one end of which is detachably connected to the electric telescopic rod (202), and the other end is detachably connected to the clamping assembly.

4. The tissue tear resistance testing device according to claim 3, characterized in that, The clamping assembly includes a mounting frame (204), a fixed clamping plate (205) fixedly connected to the mounting frame (204), a movable clamping plate (206) slidably connected to the mounting frame (204), a motor (207) fixedly connected to the mounting frame (204), and a lead screw (208) connected to the output shaft end of the motor (207). The lead screw (208) is threadedly connected to the fixed clamping plate (205). The mounting frame (204) is detachably connected to the other end of the tension sensor (203). The fixed clamping plate (205) and the movable clamping plate (206) are both horizontally arranged, and the movable clamping plate (206) is located directly above the fixed clamping plate (205).

5. The tissue tear resistance testing device according to claim 4, characterized in that, The telescopic sealing assembly includes a sealing sleeve (301), a U-shaped plate (302) connected to the sealing sleeve (301), a telescopic tube (303) connected to the U-shaped plate (302), and a sliding frame (304) connected to the other end of the telescopic tube (303). The sealing sleeve (301) is fixedly connected to the mounting frame (204), and the tension sensor (203) is located inside the sealing sleeve (301). The sliding frame (304) is slidably connected to the base (1). When the two sets of sliding frames (304) come into contact with each other, a sealed chamber is formed between the two sets of sealing sleeves (301), U-shaped plate (302), telescopic tube (303), sliding frame (304), and mounting frame (204).

6. The tissue tear resistance testing device according to claim 5, characterized in that, The humidity control assembly includes an external pipe (305), an atomizing nozzle (306) connected to one end of the external pipe (305), and a humidity sensor. The atomizing nozzle (306) and the humidity sensor are both fixedly installed on the inner wall of the sliding frame (304). One end of the external pipe (305) passes through the sliding frame (304) and is connected to the external pipe (305).

7. The tissue tear resistance testing device according to claim 6, characterized in that, The limiting component includes a slide rail on the base (1), a second motor (309) fixedly installed at the bottom of the base (1), a limiting block (308) slidably connected in the slide rail, a second lead screw (310) connected to the output shaft end of the second motor (309), and a limiting groove (307) on the sliding frame (304). The limiting groove (307) is configured to cooperate with the limiting block (308), and the limiting block (308) is threadedly connected to the second lead screw (310).

8. The tissue tear resistance testing device according to claim 7, characterized in that, It also includes a three-dimensional moving platform (4) installed on the base (1) and a dripper (5) installed on the three-dimensional moving platform (4). The three-dimensional moving platform (4) includes two sets of linear moving components II symmetrically installed on the base (1), a linear moving component III installed on the linear moving component II, and a linear moving component IV installed on the linear moving component III. The linear moving component II is arranged along the width direction of the base (1), the linear moving component III is arranged along the length direction of the base (1), and the linear moving component IV is arranged along the height direction of the base (1).

9. The tissue tear resistance testing device according to claim 8, characterized in that, The linear motion component two includes a horizontal track one (401), a slider one (402) slidably connected to the horizontal track one (401), a screw one (403) movably connected to the horizontal track one (401), and a motor three (404) fixedly connected to the horizontal track one (401). The output shaft end of the motor three (404) is connected to the screw one (403), and the slider one (402) is threadedly connected to the screw one (403). The linear motion component three includes a horizontal track two (405), a slider two (406) slidably connected to the horizontal track two (405), a screw two (407) movably connected to the horizontal track two (405), and a motor four (408) fixedly connected to the horizontal track two (405). The output shaft end of the motor four (408) is connected to the screw two (407), the slider two (406) is threadedly connected to the screw two (407), and both sets of slider one (402) are connected to the horizontal track two (405). The linear motion component four includes a vertical track (409), a slider three (410) slidably connected to the vertical track (409), a screw three (411) movably connected to the vertical track (409), and a motor five (412) fixedly connected to the vertical track (409). The output shaft end of the motor five (412) is connected to the screw three (411), the slider three (410) is threadedly connected to the screw three (411), the vertical track (409) is connected to the slider two (406), and the drip head (5) is detachably installed on the slider three (410).

10. A tissue tear resistance testing device according to claim 9, characterized in that, The input end of the dripper (5) is connected to a flow control valve, and the input end of the flow control valve is connected to a liquid delivery pipeline.

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