Non-woven fabric friction force testing device

Abstract

The utility model discloses a non-woven fabric friction force testing device which comprises a detection table fixedly installed on the upper surface of a machine body, a pressing plate is arranged on one side of the upper surface of the detection table, and a T-shaped limiting column fixed to the upper surface of the detection table is movably connected into a lifting groove formed in the pressing plate. According to the utility model, the pressing strip positioned below the pressing plate is in butt joint with the pressing groove in the detection table, the pressing strip applies pressure to the non-woven fabric to enable the pressing strip to be clamped in the pressing groove, and the non-woven fabric is subjected to pressure in the horizontal direction and the vertical direction, so that the stability of the non-woven fabric positioned below the pressing plate is further improved; when the non-woven fabric below the pressing plate and the non-woven fabric on the weight move relatively, the non-woven fabric below the pressing plate is not easy to deviate in the horizontal direction, so that the detection result is more accurate; the problem that when a non-woven fabric friction force testing device commonly used by an enterprise detects the friction force of the non-woven fabric on a testing table, the non-woven fabric is prone to deviation in the horizontal direction on the testing table, and the accuracy of detection data is affected is solved.

Description

Technical Field

[0001] This utility model relates to the field of friction testing technology, specifically to a non-woven fabric friction testing device. Background Art

[0002] A nonwoven fabric friction testing device is a device used to test the friction of nonwoven fabrics. Existing nonwoven fabric friction testing devices generally consist of a pressure plate fixing the nonwoven fabric, nonwoven fabric fixed on weights, and a tension sensor. The pressure plate fixes the nonwoven fabric on the testing platform, the nonwoven fabric fixed on the weights is placed on the nonwoven fabric on the testing platform, and the weights and tension sensor are fixed together. By detecting the tension force on the weights, the coefficient of friction of the nonwoven fabric is obtained.

[0003] When non-woven fabric is placed on the test table, it is fixed only by the weight of the pressure plate. The test table is generally made of stainless steel and has a smooth surface. When the non-woven fabric on the test table is subjected to horizontal tension, it is easy to cause horizontal displacement, resulting in smaller test data and affecting the accuracy of the test data. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a nonwoven fabric friction force testing device, which solves the problem that when commonly used nonwoven fabric friction force testing devices test the friction force of nonwoven fabric on the testing platform, the nonwoven fabric is prone to horizontal displacement on the testing platform, affecting the accuracy of the test data.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A nonwoven fabric friction force testing device includes a testing platform fixedly installed on the upper surface of the machine body. A pressure plate is provided on one side of the upper surface of the testing platform. A T-shaped limiting post fixed to the upper surface of the testing platform is movably connected in a lifting groove provided in the pressure plate. A limiting plate is provided at the top of the T-shaped limiting post, and a spring located below the limiting plate is movably sleeved on the T-shaped limiting post. A pressure strip is provided at the bottom of the pressure plate in a pressure groove on the upper surface of the testing platform.

[0007] Preferably, the layering strip is a trapezoidal strip with a narrow bottom and a wide top.

[0008] Preferably, the shapes of the groove and the strip are compatible.

[0009] Preferably, arc-shaped grooves are provided on both sides of the pressing plate.

[0010] Preferably, the lifting groove consists of a larger cylindrical groove at the top and a smaller cylindrical groove at the bottom.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The utility model sets a pressure strip located under the pressure plate and connects it with the pressure groove on the testing table. The pressure strip is used to apply pressure to the non-woven fabric so that the pressure strip is engaged in the pressure groove. The non-woven fabric will be subjected to pressure in the horizontal and vertical directions, which further improves the stability of the non-woven fabric under the pressure plate. When relative movement occurs between the non-woven fabric under the pressure plate and the non-woven fabric on the weight, it is ensured that the non-woven fabric under the pressure plate is less likely to deviate in the horizontal direction, thereby ensuring that the test results are more accurate. This solves the problem that the non-woven fabric friction test device commonly used by enterprises is prone to horizontal deviation on the test table when testing the friction of the non-woven fabric on the test table, which affects the accuracy of the test data. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a structural diagram of the corresponding position of the pressure plate of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure at the corresponding position of the pressure groove in this utility model;

[0016] Figure 4 This is a schematic diagram of the structure at the corresponding position of the T-shaped limiting post of this utility model.

[0017] In the diagram: 1. Machine body; 2. Testing table; 201. Pressure groove; 3. Pressure plate; 301. Lifting groove; 302. Pressure strip; 303. Arc-shaped pull groove; 4. T-shaped limit post; 401. Limiting plate; 402. Spring; 5. Non-woven fabric; 6. Tension sensor; 7. Weight. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] like Figure 1-4 As shown, this utility model provides a technical solution: a non-woven fabric friction force testing device, including a testing platform 2 fixedly installed on the upper surface of the machine body 1, and a pressure plate 3 provided on one side of the upper surface of the testing platform 2;

[0020] A T-shaped limit column 4 fixed to the upper surface of the inspection platform 2 is movably connected to the lifting groove 301 provided in the pressure plate 3. The lifting groove 301 consists of a larger cylindrical groove at the top and a smaller cylindrical groove at the bottom, ensuring that the pressure plate 3 can move upward and limiting the upward movement of the pressure plate 3. A limit disk 401 is provided on the top of the T-shaped limit column 4, and a spring 402 located below the limit disk 401 is movably sleeved on the T-shaped limit column 4.

[0021] The bottom of the pressure plate 3 is provided with a pressure strip 302 located in the pressure groove 201 on the upper surface of the testing table 2. The shapes of the pressure groove 201 and the pressure strip 302 are matched to ensure stable pressure on the non-woven fabric 5. The pressure strip 302 is a trapezoidal strip that is narrow at the bottom and wide at the top. When the pressure strip 302 applies pressure to the non-woven fabric 5 located on the testing table 2, the part of the non-woven fabric 5 near the pressure plate 3 is less likely to lift up, ensuring the flatness of the non-woven fabric 5. Arc-shaped pull grooves 303 are provided on both sides of the pressure plate 3 to facilitate pulling the pressure plate 3 upward.

[0022] Working principle:

[0023] When the pressure plate 3 is pulled upward by the arc-shaped groove 303, the limiting plate 401 squeezes the spring 402 to generate a reverse elastic force, placing the non-woven fabric 5 under the pressure plate 3. The pressure plate 3 is driven to descend by the reverse elastic force of the spring 402 and the gravity of the pressure plate 3. The pressure strip 302 under the pressure plate 3 applies pressure to the non-woven fabric 5 and simultaneously engages in the pressure groove 201 to fix the non-woven fabric 5. It cooperates with the non-woven fabric 5 under the weight 7, and the friction force of the non-woven fabric 5 is tested by the tension sensor 6.

[0024] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0025] 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 non-woven fabric friction force testing device, comprising a testing table (2) fixedly mounted on the upper surface of a body (1), characterized in that: A pressing plate (3) is arranged on one side of the upper surface of the detection platform (2); a lifting groove (301) arranged in the pressing plate (3) is movably connected to a T-shaped limiting column (4) fixed to the upper surface of the detection platform (2); a limiting disk (401) is arranged on the top of the T-shaped limiting column (4); and a spring (402) located below the limiting disk (401) is movably sleeved on the T-shaped limiting column (4); and a pressing strip (302) located in a pressing groove (201) on the upper surface of the detection platform (2) is arranged at the bottom of the pressing plate (3).

2. A non-woven fabric friction force testing device according to claim 1, characterized in that: The pressure strip (302) is a trapezoidal strip having a narrow bottom and a wide top.

3. A non-woven fabric friction force testing device according to claim 2, characterized in that: The shapes of the pressing groove (201) and the pressing strip (302) are adapted to each other.

4. A non-woven fabric friction force testing device according to claim 1, characterized in that: Arc-shaped grooves (303) are provided on both sides of the pressing plate (3).

5. The non-woven fabric friction force testing device according to claim 1, characterized in that: The lifting groove (301) consists of a larger cylindrical groove at the top and a smaller cylindrical groove at the bottom.

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