A rapid testing device for liquid absorption rate of spunlace nonwoven fabric

Abstract

This utility model relates to the field of spunlace nonwoven fabric production technology, and discloses a rapid testing device for the liquid absorption rate of spunlace nonwoven fabric. The device includes a gantry frame, with a controller fixedly connected to the front right side of the gantry frame. A water tank is located in the middle of the gantry frame. A lead screw is rotatably connected through the top of the inner wall of the gantry frame. A rotary motor is fixedly connected to the top of the gantry frame, and the output end of the rotary motor is fixedly connected to the top of the lead screw. A threaded cylinder is threadedly connected through the bottom of the outer ring of the lead screw, and a rotating rod is rotatably connected through the bottom of the threaded cylinder. In this utility model, the rotary motor drives the lead screw to rotate, which in turn drives the threaded cylinder to move downwards, causing the rotating rod to move the connecting plate downwards, immersing the material in distilled water in the water tank. Then, the rotary motor reverses, causing the material to move upwards. When water droplets fall from the surface of the material, a pressure sensor detects the change in gravity of the material before and after, thereby calculating the water absorption rate of the material.

Description

Technical Field

[0001] This utility model relates to the field of spunlace nonwoven fabric production technology, specifically a rapid testing device for the liquid absorption rate of spunlace nonwoven fabric. Background Technology

[0002] The production of spunlace nonwoven fabric is a process in which polymer fibers are opened, carded into a web, and then entangled and reinforced into a fabric by high-pressure water jet. The process includes fiber preparation, web formation, hydroentangling reinforcement, drying and post-treatment. The produced fabric is soft, breathable, strong and environmentally friendly, and is widely used in medical, hygiene, and clothing fields.

[0003] The liquid absorption rate test of spunlace nonwoven fabric is an experiment to evaluate its liquid absorption capacity. The sample is soaked under specified conditions, and after it is saturated with liquid, the excess liquid on the surface is removed. The liquid absorption rate is calculated by weighing the difference in mass before and after liquid absorption, which reflects the actual liquid absorption performance of the fabric in medical, hygiene and other fields, and provides data support for product application.

[0004] Existing liquid absorption rate testing devices have the following problems: during testing, a single spunlace nonwoven fabric is usually tested, and there is no repeatable data for a single sample test. It is impossible to evaluate the dispersion of the results through indicators such as standard deviation and coefficient of variation, and it is impossible to judge the reliability of the data. In order to address the above problems, a rapid liquid absorption rate testing device for spunlace nonwoven fabrics is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a rapid testing device for the liquid absorption rate of spunlace nonwoven fabrics, which solves the problem in the background technology that, due to the lack of repeatable data in single sample testing, the dispersion of the results cannot be evaluated by indicators such as standard deviation and coefficient of variation, and the reliability of the data cannot be judged.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rapid testing device for the liquid absorption rate of spunlace nonwoven fabric, comprising a gantry frame, a controller fixedly connected to the front right side of the gantry frame, a water tank in the middle of the gantry frame, a lead screw penetrating and rotatably connected to the top of the inner wall of the gantry frame, a rotary motor fixedly connected to the top of the gantry frame, and the output end of the rotary motor fixedly connected to the top of the lead screw, a threaded cylinder penetrating and threadedly connected to the bottom of the outer ring of the lead screw, a rotating rod penetrating and rotatably connected to the bottom of the threaded cylinder, a pressure sensor two penetrating and disposed at the bottom of the threaded cylinder, and the pressure sensor two disposed on the outer wall of the rotating rod, a connecting plate fixedly connected to the bottom of the rotating rod, and evenly distributed connecting rods fixedly connected to the bottom of the connecting plate, and a clamping assembly disposed at the bottom of the connecting rod.

[0007] By adopting the above technical solution, the rotary motor drives the lead screw to rotate, the lead screw drives the threaded cylinder to move downward, and drives the rotating rod to move the connecting plate downward, so that the material is immersed in the distilled water in the water tank. The pressure sensor detects the change in gravity of the material before and after.

[0008] As a further description of the above technical solution: the clamping assembly includes a connecting seat, which is fixedly connected to the bottom end of the connecting rod. Clamping plates are slidably connected through both sides of the bottom of the connecting seat. A bidirectional lead screw is rotatably connected through the middle of the connecting seat, and the bidirectional lead screw is threaded through and threaded to the middle of the clamping plate.

[0009] By adopting the above technical solution, the material is clamped by the clamping component.

[0010] As a further description of the above technical solution: a knob is fixedly connected to the right end of the bidirectional lead screw.

[0011] By adopting the above technical solution, rotating the knob drives the bidirectional lead screw to rotate.

[0012] As a further description of the above technical solution: the outer wall of the clamp is provided with a fluoride coating.

[0013] By adopting the above technical solution, the fluoride coating prevents water droplets from adhering to the clamps and affecting the testing.

[0014] As a further description of the above technical solution: a pressure sensor is fixedly connected to the front side of the bottom of the inner wall of the water tank, and the pressure sensor is electrically connected to the controller.

[0015] By adopting the above technical solution, the pressure sensor detects the water level in the pool.

[0016] As a further description of the above technical solution: a water inlet pipe is connected through and fixedly connected to the top of the rear side of the water tank, and a water valve is connected through and rotatably connected to the top of the water inlet pipe.

[0017] By adopting the above technical solution, distilled water is allowed to enter the water tank through the inlet pipe by opening the water valve.

[0018] As a further description of the above technical solution: a display is fixedly connected to the left side of the front of the gantry frame, and the display is electrically connected to the controller.

[0019] By adopting the above technical solution, the display will show the liquid absorption rate.

[0020] As a further description of the above technical solution: guide blocks are fixedly connected to both sides of the threaded cylinder, and a guide rod is slidably connected through the top of the guide block, and the top of the guide rod is fixedly connected to the top of the inner wall of the gantry frame.

[0021] By adopting the above technical solution, the rotation of the threaded cylinder is prevented through the cooperation of the guide rod and the guide block.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] This utility model provides a rapid testing device for the liquid absorption rate of spunlace nonwoven fabric. A rotary motor drives a lead screw to rotate, which in turn drives a threaded cylinder to move downwards. This causes a rotating rod to move a connecting plate downwards, immersing the material in distilled water in a pool. Then, the rotary motor reverses to move the material upwards. When water droplets fall from the surface of the material, a pressure sensor detects the change in gravity before and after the material is immersed, thereby calculating the water absorption rate of the material.

[0024] This utility model provides a rapid testing device for the liquid absorption rate of spunlace nonwoven fabric. Through the action of a connecting seat, clamping plates, bidirectional screw, and knob, the material is placed between two clamping plates. Then, the knob is turned, which drives the bidirectional screw to rotate. The bidirectional screw drives the two clamping plates to move towards the middle, thereby clamping the material. Attached Figure Description

[0025] Figure 1 This is a perspective view of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the connector of this utility model;

[0027] Figure 3 This is a cross-sectional view of the water tank of this utility model;

[0028] Figure 4 This is a schematic diagram of the second pressure sensor of this utility model.

[0029] In the diagram: 1. Gantry frame; 2. Rotary motor; 3. Lead screw; 4. Guide rod; 5. Threaded cylinder; 6. Guide block; 7. Controller; 8. Rotating rod; 9. Connecting plate; 10. Connecting rod; 11. Water tank; 12. Display; 13. Connecting seat; 14. Clamping plate; 15. Two-way lead screw; 16. Knob; 17. Pressure sensor one; 18. Inlet pipe; 19. Water valve; 20. Pressure sensor two; 21. Fluoride coating. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0032] Combination Figure 1 and Figure 4 A rapid testing device for the liquid absorption rate of spunlace nonwoven fabric includes a gantry frame 1. A controller 7 is fixedly connected to the front right side of the gantry frame 1. A water tank 11 filled with distilled water is located in the middle of the gantry frame 1. A lead screw 3 is rotatably connected through the top of the inner wall of the gantry frame 1. A rotary motor 2 is fixedly connected to the top of the gantry frame 1, and the output end of the rotary motor 2 is fixedly connected to the top of the lead screw 3. The rotary motor 2 drives the lead screw 3 to rotate. A threaded cylinder 5 is threaded through and threaded to the bottom of the outer ring of the lead screw 3. The lead screw 3 drives the threaded cylinder 5 to move up and down. A rotating rod 8 is rotatably connected through the bottom of the cylinder 5. A pressure sensor 20 is also installed through the bottom of the threaded cylinder 5 and is located on the outer wall of the rotating rod 8. The rotating rod 8 applies pressure to the pressure sensor 20 to calculate the weight change of the material before and after water absorption and to calculate the liquid absorption rate. A connecting plate 9 is fixedly connected to the bottom of the rotating rod 8. A uniformly distributed connecting rod 10 is fixedly connected to the bottom of the connecting plate 9. A clamping assembly is provided at the bottom of the connecting rod 10. Multiple materials are clamped by multiple clamping assemblies, and the average value is calculated to reduce errors.

[0033] Combination Figure 2 The clamping assembly includes a connecting seat 13, which is fixedly connected to the bottom end of the connecting rod 10. Clamping plates 14 are slidably connected through both sides of the bottom of the connecting seat 13. A bidirectional lead screw 15 is rotatably connected through the middle of the connecting seat 13, and the bidirectional lead screw 15 is threaded through and connected to the middle of the clamping plate 14. The bidirectional lead screw 15 drives the two clamping plates 14 to move towards the middle to clamp the material.

[0034] Combination Figure 1-3A knob 16 is fixedly connected to the right end of the bidirectional lead screw 15. Rotating the knob 16 causes the bidirectional lead screw 15 to rotate. A fluoride coating 21 is provided on the outer wall of the clamping plate 14 to prevent water droplets from hanging on the clamping plate 14 and affecting the detection. A pressure sensor 17 is fixedly connected to the bottom front side of the inner wall of the water tank 11, and the pressure sensor 17 is electrically connected to the controller 7. The pressure sensor 17 detects the water level in the water tank 11. A water inlet pipe 18 is fixedly connected through and fixed to the top of the rear side of the water tank 11. A water valve 19 is rotatably connected through and to the top of the water inlet pipe 18. By opening the water valve 19, distilled water enters the water tank through the water inlet pipe 18. In pool 11, the water level is maintained. A display 12 is fixedly connected to the left side of the front of the gantry 1, and the display 12 is electrically connected to the controller 7. The controller 7 transmits the calculated liquid absorption rate to the display 12, and the display 12 displays the liquid absorption rate. Guide blocks 6 are fixedly connected to both sides of the threaded cylinder 5. A guide rod 4 is slidably connected through the top of the guide block 6, and the top of the guide rod 4 is fixedly connected to the top of the inner wall of the gantry 1. Through the cooperation of the guide rod 4 and the guide block 6, the threaded cylinder 5 is prevented from rotating due to the friction of the screw 3.

[0035] Working principle: The material is placed between two clamping plates 14. The knob 16 is turned, which drives the bidirectional lead screw 15 to rotate. The bidirectional lead screw 15 drives the two clamping plates 14 to move towards the middle, thereby clamping the material. Then, the rotary motor 2 is started, which drives the lead screw 3 to rotate. The lead screw 3 drives the threaded cylinder 5 to move down, which drives the rotating rod 8 to move the connecting plate 9 down, so that the material is immersed in the distilled water in the water tank 11. Then, the rotary motor 2 reverses and drives the material to move up. When the water droplets on the surface of the material fall, the pressure sensor 20 detects the change in gravity of the material before and after, thereby calculating the water absorption rate of the material.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A kind of water-jet nonwoven fabric liquid absorption rate quick test device, including gantry (1), it is characterized in that: A controller (7) is fixedly connected to the front right side of the gantry frame (1). A water tank (11) is set in the middle of the gantry frame (1). A lead screw (3) is rotatably connected through the top of the inner wall of the gantry frame (1). A rotary motor (2) is fixedly connected to the top of the gantry frame (1), and the output end of the rotary motor (2) is fixedly connected to the top of the lead screw (3). A threaded cylinder (5) is threaded through and threaded to the bottom of the outer ring of the lead screw (3). A rotating rod (8) is rotatably connected through the bottom of the threaded cylinder (5). A pressure sensor (20) is set through the bottom of the threaded cylinder (5), and the pressure sensor (20) is set on the outer wall of the rotating rod (8). A connecting plate (9) is fixedly connected to the bottom of the rotating rod (8). A uniformly distributed connecting rod (10) is fixedly connected to the bottom of the connecting plate (9). A clamping assembly is set at the bottom of the connecting rod (10).

2. The device for testing the liquid absorption rate of a spunlace nonwoven fabric according to claim 1, characterized in that: The clamping assembly includes a connecting seat (13), which is fixedly connected to the bottom end of the connecting rod (10). Both sides of the bottom of the connecting seat (13) are connected to clamping plates (14) through and slidingly. A bidirectional lead screw (15) is connected through and rotatably in the middle of the connecting seat (13), and the bidirectional lead screw (15) is threaded through and threaded to the middle of the clamping plate (14).

3. The rapid testing device for liquid absorption rate of spunlace nonwoven fabric according to claim 2, characterized in that: A knob (16) is fixedly connected to the right end of the bidirectional lead screw (15).

4. The rapid testing device for liquid absorption rate of spunlace nonwoven fabric according to claim 2, characterized in that: The outer wall of the clamp (14) is provided with a fluoride coating (21).

5. The rapid testing device for liquid absorption rate of spunlace nonwoven fabric according to claim 1, characterized in that: A pressure sensor (17) is fixedly connected to the bottom front side of the inner wall of the water tank (11), and the pressure sensor (17) is electrically connected to the controller (7).

6. The rapid testing device for liquid absorption rate of spunlace nonwoven fabric according to claim 1, characterized in that: A water inlet pipe (18) is connected through and fixed to the top of the rear side of the water tank (11), and a water valve (19) is connected through and rotatably to the top of the water inlet pipe (18).

7. The rapid testing device for liquid absorption rate of spunlace nonwoven fabric according to claim 1, characterized in that: A display (12) is fixedly connected to the left side of the front of the gantry (1), and the display (12) is electrically connected to the controller (7).

8. The rapid testing device for liquid absorption rate of spunlace nonwoven fabric according to claim 1, characterized in that: Guide blocks (6) are fixedly connected to both sides of the threaded cylinder (5). A guide rod (4) is slidably connected through the top of the guide block (6), and the top of the guide rod (4) is fixedly connected to the top of the inner wall of the gantry frame (1).

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