Probe for testing hair friction force by texture analyzer

Abstract

The utility model provides a probe for testing hair friction force by a texture analyzer, which belongs to the technical field of texture analyzers and comprises a texture analyzer fixing platform, a probe body and a probe body. The hair friction force testing platform is positioned at the upper end of the texture analyzer fixing platform; the two supporting frames are fixedly connected to the upper end of the hair friction force testing platform; the two limiting rods are fixedly connected to the ends, close to each other, of the two supporting frames correspondingly. The change of the friction force is monitored in real time through the force sensing element, and high-precision quantification of the friction characteristic of the hair is realized in combination with precise matching of the wedge-shaped connecting piece and the hair fixing clamp. According to the design, the influence of external interference factors on a test result is effectively reduced, so that accurate and repeatable data can be obtained in each measurement, and the research and development efficiency and the accuracy of product evaluation are greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of texture analyzers, and particularly relates to a texture analyzer probe for testing the friction force of hair. Background Art

[0002] A texture analyzer is a precision instrument used to quantify and analyze the texture properties of various materials, including hardness, elasticity, brittleness, viscosity, etc. In the hair care industry, a texture analyzer can be used to test the friction force of hair, which is very important for evaluating the health status of hair, evaluating the efficacy of hair care products, and studying the effects of hair care ingredients.

[0003] When evaluating the effects of different hair care products, the friction force of hair is an important evaluation index. The usual test method is to fix a wooden comb and hair on a bracket respectively, let the head hang down naturally, and comb the hair from top to bottom with the wooden comb. Due to the small friction force of hair, there are many interference factors in the test process, and the evaluation effect is not good. Content of the Utility Model

[0004] The purpose of the utility model is to provide a texture analyzer probe for testing the friction force of hair, aiming to solve the problem in the prior art that the usual test method is to fix a wooden comb and hair on a bracket respectively, let the head hang down naturally, and comb the hair from top to bottom with the wooden comb. Due to the small friction force of hair, there are many interference factors in the test process, and the evaluation effect is not good.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A texture analyzer probe for testing the friction force of hair, comprising:

[0007] A texture analyzer fixed platform;

[0008] A hair friction force test platform, which is located at the upper end of the texture analyzer fixed platform;

[0009] Two support frames, both of which are fixedly connected to the upper end of the hair friction force test platform;

[0010] Two limit rods, which are respectively fixedly connected to the adjacent ends of the two support frames;

[0011] A fixed friction head, which is fixedly connected to one side end of one of the support frames;

[0012] A slider, which is slidably connected to the circumferential surface of the two limit rods;

[0013] A movable friction head, which is fixedly connected to one side end of the slider;

[0014] A force sensing element, which is located above the slider;

[0015] A wedge-shaped connecting member, the wedge-shaped connecting member being arranged at the lower end of the force sensing element;

[0016] A hair fixing clamp is connected to a force sensing element via a wedge-shaped connecting piece.

[0017] As a preferred solution of the utility model, one side end of one of the support frames is fixedly connected to a pulley bracket, and one side of the pulley bracket is rotatably connected to two I-shaped wheels through a rotating rod.

[0018] As a preferred solution of the utility model, a weight is provided on the lower side of the pulley bracket, and a hanging ring is fixedly connected to one side end of the sliding block.

[0019] As a preferred solution of the present invention, the support frame is made of steel.

[0020] As a preferred solution of the utility model, the support frame and the limiting rod are fixed by bolts.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] 1. In this solution, the design of the hair friction texture analyzer probe significantly improves the accuracy and reliability of the test through fine construction and precise component selection. The steel support frame and the bolted limit rod not only provide a solid and stable test platform, but also ensure the straightness and stability of the active friction head during the sliding process. In addition, the force sensor element monitors the change of friction force in real time, combined with the precise matching of the wedge-shaped connector and the hair fixing fixture, to achieve high-precision quantification of the friction characteristics of the hair. This design effectively reduces the impact of external interference factors on the test results, so that each measurement can obtain accurate and repeatable data, greatly improving the R&D efficiency and the accuracy of product evaluation.

[0023] 2. In this solution, the support frame and the limit rod are fixed with bolts, allowing the user to easily adjust the position of the limit rod according to specific test requirements, adapt to hair samples of different lengths or types, and even respond quickly to special experimental conditions. At the same time, the addition of hanging rings and weights enables a preset constant force to be applied during the test, ensuring the consistency of the stress state of the hair samples under different experimental conditions, and enhancing the standardization and controllability of the test. This design not only meets the needs of basic scientific research, but also provides a powerful tool for product development, quality control and market verification. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 is the front perspective view of the present utility model;

[0026] Figure 2 of the present utility model Figure 1 is the enlarged partial view at position A in

[0027] In the figure: 1, force sensing element; 2, weight; 3, pulley bracket; 4, spool; 5, texture analyzer fixing platform; 6, hair friction test platform; 7, support frame; 8, limiting rod; 9, slider; 10, fixed friction head; 11, wedge-shaped connecting piece; 12, hair fixing clamp; 13, movable friction head; 14, hanging ring. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Embodiment 1

[0030] Please refer to Figure 1 - Figure 2 , the present utility model provides the following technical solutions:

[0031] A texture analyzer for testing hair friction probe, comprising:

[0032] texture analyzer fixing platform 5;

[0033] hair friction test platform 6, the hair friction test platform 6 is located at the upper end of the texture analyzer fixing platform 5;

[0034] two support frames 7, both of the two support frames 7 are fixedly connected to the upper end of the hair friction test platform 6;

[0035] two limiting rods 8, the two limiting rods 8 are respectively fixedly connected to the closer ends of the two support frames 7;

[0036] fixed friction head 10, the fixed friction head 10 is fixedly connected to one side end of one of the support frames 7;

[0037] slider 9, the slider 9 is slidably connected to the circumferential surface of the two limiting rods 8;

[0038] movable friction head 13, the movable friction head 13 is fixedly connected to one side end of the slider 9;

[0039] force sensing element 1, the force sensing element 1 is located above the slider 9;

[0040] The wedge-shaped connecting member 11 is provided at the lower end of the force sensing element 1;

[0041] The hair fixing clamp 12 is connected to the force sensing element 1 through the wedge-shaped connecting member 11.

[0042] In a specific embodiment of the present utility model, the texture analyzer fixed platform 5 serves as a base to provide stable support and ensure the stability of the structure during the test. The hair friction test platform 6 directly bears the hair sample and all components during the test, and is located above the fixed platform for easy operation and adjustment. The two support frames 7 are symmetrically arranged to support the limit rod 8 to ensure the structural stability. The limit rod 8 is installed at the closer ends of the support frames 7 to ensure the accuracy of the linear movement of the fixed friction head 10. When the fixed friction head 10 contacts the hair sample, its position remains unchanged to generate a constant friction interface. The slider 9 slides along the limit rod 8 to carry the moving friction head 13 to move, ensuring the smooth movement of the moving friction head during the friction test. The moving friction head 13 contacts the hair sample and generates relative movement, and the friction force is measured by the change in force caused by its movement. The force sensing element 1 is connected to the slider 9 through the wedge-shaped connecting member 11 to monitor the force on the moving friction head 13 in real time. The wedge-shaped connecting member 11 not only transmits force but also plays a certain adjustment role to ensure the accurate measurement of force. The hair fixing clamp 12 is used to fix the hair sample to ensure the consistency of the position and tension of the hair sample during the test. The hair friction texture analyzer probe design can accurately measure the friction force of the hair, providing strong data support for the development of hair care products. When the moving friction head 13 moves linearly under the guidance of the limit rod 8, it will generate relative friction with the hair sample, resulting in a change in the force detected by the force sensing element 1.

[0043] Specifically, please refer to Figure 1 - Figure 2 One side end of one of the support frames 7 is fixedly connected with a pulley bracket 3, and two pulley wheels 4 are rotatably connected to one side of the pulley bracket 3 through a rotating rod;

[0044] A weight 2 is provided below the pulley bracket 3, and a hanging ring 14 is fixedly connected to one side end of the slider 9.

[0045] In this embodiment: The surface of the support frame 7 has a circular through-hole to facilitate the nylon rope to pass through. The hanging ring 14 is used to connect the nylon rope and transmit the pulling force of the weight 2 to the slider 9, ensuring that a predetermined force can be stably applied when the movable friction head 13 conducts a friction force test. The pulley bracket 3 is used to support the spool 4. The spool 4 is used to hang the weight 2 by the traction of the nylon rope, ensuring that the vertical movement of the movable friction head 13 will not be affected by lateral forces when measuring the hair friction force, thereby improving the measurement accuracy. The weight 2 is used to generate a constant downward pulling force to ensure that the hair sample maintains a consistent tension during the measurement process and avoid errors caused by gravity changes.

[0046] Specifically, please refer to Figure 1 - Figure 2 , and the material of the support frame 7 is steel.

[0047] In this embodiment: Steel can provide sufficient supporting force to avoid deformation due to external forces during the test, which affects the measurement accuracy. The steel material has good corrosion resistance and wear resistance, and can maintain the structural integrity even during frequent use and long-term exposure to the laboratory environment, extending the service life of the equipment.

[0048] Specifically, please refer to Figure 1 - Figure 2 , and the support frame 7 and the limit rod 8 are fixed by bolts.

[0049] In this embodiment: The bolt connection can be adjusted according to requirements, and at the same time, it can adapt to hair samples of different lengths or conduct different types of tests. The bolt fixation provides reliable connection strength.

[0050] The working principle and use process of the utility model are as follows: first, fix the hair friction force test platform 6 on the fixed platform 5 of the texture analyzer, move the slider 9 to separate the movable friction head 13 from the fixed friction head 10, then evenly distribute the hair sample on the hair fixing fixture 12, then place the hair fixing fixture 12 on the wedge-shaped connecting piece 11, then place the hair into the fixed friction head 10, push the slider 9 to make the movable friction head 13 press the hair, and finally, hang the weight 2 on the I-shaped wheel 4 to generate a constant pressure between the movable friction head 13 and the fixed friction head 10. When the friction coefficient of the hair is constant, the friction force between the hair and the friction head is proportional to the preload force. Proportional relationship, by increasing the preload, the friction of the hair can be effectively amplified. When comparing different samples, the preload is constant, and the friction between the hair and the friction head is only proportional to the friction coefficient of the hair. The greater the friction, the greater the friction coefficient of the hair, that is, the rougher the hair, to ensure the consistency of the position and tension of the hair sample during the test. The design of the hair friction texture analyzer probe can accurately measure the friction of the hair, providing strong data support for the development of hair care products. When the movable friction head 13 moves in a straight line under the guidance of the limit rod 8, it will produce relative friction with the hair sample, causing the force detected by the force sensor 1 to change.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A texture analyzer for testing the friction force of hair, characterized in that, include: Texture analyzer fixed platform (5); A hair friction force testing platform (6), wherein the hair friction force testing platform (6) is located at the upper end of the texture analyzer fixing platform (5); Two support frames (7), both of which are fixedly connected to the upper end of the hair friction force testing platform (6); Two limiting rods (8), the two limiting rods (8) being respectively fixedly connected to adjacent ends of the two support frames (7); A fixed friction head (10), wherein the fixed friction head (10) is fixedly connected to one side end of one of the support frames (7); A slider (9), the slider (9) being slidably connected to the circumferential surfaces of the two limiting rods (8); A movable friction head (13), wherein the movable friction head (13) is fixedly connected to one side end of the slider (9); A force sensing element (1), wherein the force sensing element (1) is located on the upper side of the slider (9); A wedge-shaped connecting member (11), wherein the wedge-shaped connecting member (11) is arranged at the lower end of the force sensing element (1); A hair fixing clamp (12), wherein the hair fixing clamp (12) is connected to a force sensing element (1) via a wedge-shaped connecting piece (11).

2. The texture analyzer for testing the hair friction probe according to claim 1, characterized in that: One side end of one of the support frames (7) is fixedly connected to a pulley bracket (3), and one side of the pulley bracket (3) is rotatably connected to two I-shaped wheels (4) via a rotating rod.

3. A texture analyzer for testing hair friction probe according to claim 2, characterized in that: A weight (2) is provided on the lower side of the pulley bracket (3), and a hanging ring (14) is fixedly connected to one side end of the sliding block (9).

4. A texture analyzer for testing hair friction probe according to claim 3, wherein: The support frame (7) is made of steel.

5. A texture analyzer for testing hair friction probe according to claim 4, characterized in that: The support frame (7) and the limiting rod (8) are fixed by bolts.

Images