Tensile testing device for brush hair of cosmetic brush
By designing a makeup brush bristle tensile strength test device, using a splint for fixing, a nozzle covered with fatty acid, and a convex plate to adjust the force, the problem of accurate simulation of the usage state of makeup brushes in the existing technology was solved, and the high accuracy and reliability of the makeup brush bristle tensile strength test results were achieved.
Patent Information
- Application Number
- CN202510761996.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2025-09-12
AI Technical Summary
It is difficult for existing technologies to accurately simulate the state of the bristles of cosmetic brushes in actual use, resulting in reduced accuracy and reliability of the test results of the tensile strength of cosmetic brush bristles.
A tensile testing device for cosmetic brush bristles was designed, consisting of a fixed test component, a cover simulation component, and a stress simulation component. A clamp secures the bristle ends, a nozzle covers the fatty acid, and a convex plate adjusts the stress angle of the bristles, simulating the actual state of a cosmetic brush after use.
The device can accurately test the tensile strength of makeup brush bristles, truly reflect the performance of makeup brushes in actual use, and improve the accuracy and reliability of test results.
Smart Images
Figure CN120628792A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of tensile resistance testing, and in particular relates to a device for testing the tensile resistance of cosmetic brush bristles. Background Art
[0002] Makeup brushes are commonly used tools in the makeup process. The quality of the bristles directly affects the performance and life of the brushes. Among them, the tensile strength of the bristles is one of the important indicators to measure its quality.
[0003] In the existing technology for testing the tensile strength of makeup brush bristles, the tensile strength of the bristles is usually evaluated by fixing the two ends of the bristles, then applying tension to the two ends, and detecting the tension value after the bristles are broken. However, this method has obvious limitations. During actual use, makeup brushes need to frequently contact human skin. Human skin secretes oil and sweat, which contain components such as fatty acids. When the bristles come into contact with the skin, these fatty acids will chemically react with the bristle material. Especially for natural bristles, oil can easily penetrate into the bristles and destroy their original structure, which will make the bristles dry and brittle, and reduce their toughness and elasticity, thereby reducing the tensile strength of the bristles. However, the testing method of simply applying tension to the two ends of the bristles in the existing technology does not take into account the situations that may occur in actual use as mentioned above, and cannot accurately simulate the state of the bristles of the makeup brushes after daily use, resulting in difficulty in accurately testing the tensile strength of the bristles of the makeup brushes in actual use scenarios, reducing the accuracy and reliability of the tensile strength test results of the makeup brush bristles, and making it difficult for the test results to truly reflect the performance of the makeup brushes in actual use.
[0004] Therefore, we propose a cosmetic brush bristle tensile strength testing device to solve the above problems. Summary of the Invention
[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A device for testing the tensile strength of cosmetic brush bristles comprises a test box, wherein the bottom side walls of the test box are symmetrically fixedly connected to two support plates, a first groove is provided on the inner wall of one end of the test box, a first electric telescopic rod is fixedly connected to the upper and lower inner walls of the first groove, a first splint is fixedly connected to the telescopic end of the first electric telescopic rod, a fixed test component for fixing one end of the bristles and testing the tensile strength of the bristles is provided on the inner wall of the test box, a covering simulation component for covering the surface of the bristles with fatty acids is provided on the inner wall of the test box, and a plurality of force simulation components for changing the stress bending position of the bristles are fixedly connected to the inner wall of the test box.
[0006] Preferably, the fixed test assembly includes two second grooves symmetrically opened on the inner walls at both ends of the test box, the inner walls of the second grooves are fixedly connected to the first slide rail, the side walls of the first slide rail are slidably connected to the first slide plate, the side walls of the two first slide plates are fixedly connected to the same fixed plate, the side walls of the fixed plate are provided with a plurality of third grooves corresponding to the positions and quantities of the first grooves, the inner walls of the upper and lower ends of the third grooves are provided with slide grooves, the inner walls of the slide grooves are slidably connected to the slider, and the top side wall of the slider is fixedly connected to the second electric telescopic rod.
[0007] Preferably, the telescopic end of the second electric telescopic rod is fixedly connected to a fixed block, the inner wall of one end of one of the slide grooves in each of the third grooves is fixedly connected to a pressure sensor, the detection end of the pressure sensor is fixedly connected to a pull rod, one end of the pull rod is fixedly connected to the side wall of one end of the slider, an annular groove is provided on the outer wall of one of the fixed blocks in each of the third grooves, and the first motor is fixedly connected to the inner wall of one end of the corresponding fixed block.
[0008] Preferably, the output end of the first motor is fixedly connected to a bent rod, one end of the bent rod is fixedly connected to a third electric telescopic rod, the telescopic end of the third electric telescopic rod is fixedly connected to a card plate, the upper and lower inner walls of the card plate are fixedly connected to the fourth electric telescopic rod, and the telescopic end of the fourth electric telescopic rod is fixedly connected to a card block.
[0009] Preferably, the covering simulation component includes fourth grooves symmetrically opened on the inner walls at both ends of the test box, the inner walls of the fourth grooves are fixedly connected with second slide rails, the side walls of the second slide rails are slidably connected with second slide plates, the side walls of the two second slide plates are fixedly connected with the same mounting plate, the inner wall of the mounting plate is fixedly connected with a third slide rail, the bottom end side walls of the third slide rail are slidably connected with multiple third slide plates, and the bottom end side walls of the third slide plate are fixedly connected with a fifth electric telescopic rod.
[0010] Preferably, the telescopic ends of the fifth electric telescopic rod are fixedly connected to an annular shell, the inner wall of the annular shell is fixedly connected to a fourth slide rail, the side wall of the fourth slide rail is slidably connected to a fourth slide plate, the side wall of the fourth slide plate is fixedly connected to a connecting shell, the outer wall of the connecting shell is fixedly connected to a plurality of nozzles, the liquid inlet ends of the nozzles all pass through the side wall of the connecting shell and extend inward, the side wall of the connecting shell is provided with a through hole, and a spring hose is fixedly connected to the corresponding through hole, and one end of the spring hose passes through the side wall of the annular shell and extends inward.
[0011] Preferably, the force simulation component includes a plurality of connecting blocks fixedly connected to the inner wall of the test box, the inner walls of the connecting blocks are fixedly connected to the fifth slide rail, the top side walls of the fifth slide rail are slidably connected to the fifth slide plate, and the top side walls of the fifth slide plate are fixedly connected to the sixth electric telescopic rod.
[0012] Preferably, the telescopic ends of the sixth electric telescopic rod are fixedly connected to a concave plate, the inner wall of the concave plate is rotatably connected to a side rod, the side walls of the concave plate are fixedly connected to a second motor, the output end of the second motor passes through the side wall of the concave plate and is fixedly connected to one end of the side rod, and the rod wall of the side rod is fixedly connected to a convex plate.
[0013] Compared with the prior art, the present invention has the following beneficial effects: By providing a fixed test component, a covering simulation component, and a force simulation component, when the tensile strength of the cosmetic brush bristles needs to be tested, the first clamping plate and the fixed block can be used to fix the two ends of the cosmetic brush bristles, and the clamping block can be used to wrap the end of the cosmetic brush bristles around the outer wall of the annular groove, so as to facilitate stable traction and fixation of one end of the cosmetic brush bristles. In addition, the fatty acid can be evenly covered on the outer wall of the cosmetic brush bristles by the nozzle, accurately simulating the state of the bristles of the cosmetic brush after daily use, thereby accurately testing the tensile strength of the cosmetic brush bristles and making the test results truly reflect the performance of the cosmetic brush in actual use. At the same time, the convex plate can be used to adjust the bending angle and bending area of the bristles, simulating the phenomenon that the cosmetic brush bristles are bent due to force during use, thereby incorporating various factors that may affect the tensile strength of the cosmetic brush bristles into the test process, and comprehensively evaluating the tensile strength of the bristles from multiple dimensions. This test method that comprehensively considers multiple factors greatly improves the accuracy and reliability of the test results of the tensile strength of the cosmetic brush bristles. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention from other angles; Figure 3 For the present invention Figure 2 A magnified view of part A; Figure 4 Schematic diagram of part of the structure of the present invention Figure 1 ; Figure 5 For the present invention Figure 4 A magnified view of part B; Figure 6 Schematic diagram of part of the structure of the present invention Figure 2 ; Figure 7 Schematic diagram of part of the structure of the present invention Figure 3 ; Figure 8 Schematic diagram of part of the structure of the present invention Figure 4 ; Figure 9 Schematic diagram of part of the structure of the present invention Figure 5 .
[0015] In the figure: 1, test box; 2, support plate; 3, first groove; 4, first electric telescopic rod; 5, first clamping plate; 6, fixed test assembly; 61, second groove; 62, first slide rail; 63, first slide plate; 64, fixed plate; 65, third groove; 66, slide groove; 67, slider; 68, second electric telescopic rod; 69, fixed block; 610, pressure sensor; 611, pull rod; 612, annular groove; 613, first motor; 614, bending rod; 615, third electric telescopic rod; 616, clamping plate; 617, fourth electric telescopic rod; 61 8. Clamping block; 7. Covering simulation component; 71. Fourth groove; 72. Second slide rail; 73. Second slide plate; 74. Mounting plate; 75. Third slide rail; 76. Third slide plate; 77. Fifth electric telescopic rod; 78. Annular shell; 713. Fourth slide rail; 79. Fourth slide plate; 710. Connecting shell; 711. Sprinkler head; 712. Spring hose; 8. Force simulation component; 81. Connecting block; 82. Fifth slide rail; 83. Fifth slide plate; 84. Sixth electric telescopic rod; 85. Concave plate; 86. Side rod; 87. Second motor; 89. Convex plate. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0017] The following electrical components are all electrically connected to the peripheral PLC controller.
[0018] Reference Figures 1-9 A device for testing the tensile strength of cosmetic brush bristles comprises a test box 1, two support plates 2 are symmetrically fixedly connected to the side walls of the bottom end of the test box 1, a first groove 3 is provided on the inner wall of one end of the test box 1, a first electric telescopic rod 4 is fixedly connected to the inner walls of the upper and lower ends of the first groove 3, a first splint 5 is fixedly connected to the telescopic end of the first electric telescopic rod 4, a fixed test component 6 for fixing one end of the bristles and testing the tensile strength of the bristles is provided on the inner wall of the test box 1, a covering simulation component 7 for covering the surface of the bristles with fatty acids is provided on the inner wall of the test box 1, and a plurality of force simulation components 8 for changing the stress bending position of the bristles are fixedly connected to the inner wall of the test box 1.
[0019] In the embodiment, the fixed test assembly 6 includes two second grooves 61 symmetrically provided on the inner walls at both ends of the test box 1, the inner walls of the second grooves 61 are fixedly connected to the first slide rails 62, the side walls of the first slide rails 62 are slidably connected to the first slide plates 63, the side walls of the two first slide plates 63 are fixedly connected to the same fixed plate 64, the side walls of the fixed plate 64 are provided with a plurality of third grooves 65 corresponding in position and number to the first grooves 3, the inner walls of the upper and lower ends of the third grooves 65 are provided with slide grooves 66, the inner walls of the slide grooves 66 are slidably connected to the sliders 67, and the top side wall of the slider 67 is fixedly connected to the second electric telescopic rod 68; The telescopic end of the second electric telescopic rod 68 is fixedly connected to a fixed block 69. A pressure sensor 610 is fixedly connected to the inner wall of one end of one of the slide grooves 66 in each third groove 65. The detection end of the pressure sensor 610 is fixedly connected to a pull rod 611. One end of the pull rod 611 is fixedly connected to the side wall of one end of the slider 67. An annular groove 612 is formed on the outer wall of one of the fixed blocks 69 in each third groove 65, and a first motor 613 is fixedly connected to the inner wall of one end of the corresponding fixed block 69. The output end of the first motor 613 is fixedly connected to a bent rod 614, one end of the bent rod 614 is fixedly connected to a third electric telescopic rod 615, the telescopic end of the third electric telescopic rod 615 is fixedly connected to a clamping plate 616, the upper and lower inner walls of the clamping plate 616 are fixedly connected to a fourth electric telescopic rod 617, and the telescopic ends of the fourth electric telescopic rod 617 are fixedly connected to a clamping block 618.
[0020] Specifically, when the tensile strength of the makeup brush bristles needs to be tested, the first splint 5 and the fixing block 69 can be used to fix the two ends of the makeup brush bristles, and the clamping block 618 can be used to wrap the end of the makeup brush bristles around the outer wall of the annular groove 612, so as to facilitate stable traction and fixation of one end of the makeup brush bristles.
[0021] In the embodiment, the covering simulation component 7 includes fourth grooves 71 symmetrically formed on the inner walls of both ends of the test box 1. The inner walls of the fourth grooves 71 are fixedly connected to second slide rails 72. The side walls of the second slide rails 72 are slidably connected to second slide plates 73. The side walls of the two second slide plates 73 are fixedly connected to the same mounting plate 74. The inner wall of the mounting plate 74 is fixedly connected to a third slide rail 75. The bottom side walls of the third slide rail 75 are slidably connected to multiple third slide plates 76. The bottom side walls of the third slide plates 76 are fixedly connected to a fifth electric telescopic rod 77. The telescopic ends of the fifth electric telescopic rod 77 are fixedly connected to the annular shell 78, the inner wall of the annular shell 78 is fixedly connected to the fourth slide rail 713, the side wall of the fourth slide rail 713 is slidably connected to the fourth slide plate 79, the side wall of the fourth slide plate 79 is fixedly connected to the connecting shell 710, and the outer wall of the connecting shell 710 is fixedly connected to a plurality of nozzles 711, and the liquid inlet ends of the nozzles 711 all penetrate the side wall of the connecting shell 710 and extend inward. A through hole is opened in the side wall of the connecting shell 710, and a spring hose 712 is fixedly connected to the corresponding through hole, and one end of the spring hose 712 penetrates the side wall of the annular shell 78 and extends inward.
[0022] Specifically, the nozzle 711 can be used to evenly cover the fatty acid on the outer wall of the makeup brush bristles, accurately simulating the bristle state of the makeup brush after daily use, thereby accurately testing the tensile strength of the makeup brush bristles, so that the test results truly reflect the performance of the makeup brush in actual use.
[0023] In the embodiment, the force simulation assembly 8 includes a plurality of connection blocks 81 fixedly connected to the inner wall of the test box 1, the inner walls of the connection blocks 81 are fixedly connected to the fifth slide rail 82, the top side walls of the fifth slide rail 82 are slidably connected to the fifth slide plate 83, and the top side walls of the fifth slide plate 83 are fixedly connected to the sixth electric telescopic rod 84; The telescopic ends of the sixth electric telescopic rod 84 are fixedly connected to the concave plate 85, the inner wall of the concave plate 85 is rotatably connected to the side rod 86, the side walls of the concave plate 85 are fixedly connected to the second motor 87, the output end of the second motor 87 passes through the side wall of the concave plate 85 and is fixedly connected to one end of the side rod 86, and the rod wall of the side rod 86 is fixedly connected to the convex plate 89.
[0024] Specifically, the convex plate 89 can be used to adjust the bending angle and bending area of the bristles, simulating the phenomenon that the bristles of the makeup brush are bent due to force during use, thereby incorporating various factors that may affect the tensile strength of the makeup brush bristles into the testing process, and comprehensively evaluating the tensile strength of the bristles from multiple dimensions. This testing method that comprehensively considers multiple factors greatly improves the accuracy and reliability of the test results of the tensile strength of the makeup brush bristles.
[0025] The operating principle of the present invention is now described as follows: In the present invention, when the tensile strength of the makeup brush bristles needs to be tested, one end of the makeup brush bristles to be tested is first placed in the first groove 3 in sequence, so that one end of the makeup brush bristles is located between the two first clamping plates 5. Then, the first electric telescopic rod 4 is controlled to start, driving the first clamping plate 5 to move, and the first clamping plate 5 is used to fix one end of the makeup brush bristles. Then, the first slide rail 62 is controlled to start, driving the corresponding first slide plate 63 to move, so that the fixing plate 64 moves toward the first clamping plate 5. After the distance between the fixing plate 64 and the first clamping plate 5 is slightly smaller than the length of the makeup brush bristles to be tested, the first slide rail 62 is controlled to stop, and then the other end of the makeup brush bristles is placed in the corresponding third groove 65 in sequence, so that the other end of the makeup brush bristles is located between the fixing block 69. On one side, the second electric telescopic rod 68 is controlled to start, driving the fixed block 69 to move, and the fixed block 69 is used to preliminarily fix the other end of the makeup brush bristles. Then, the third electric telescopic rod 615 is controlled to start, driving the card plate 616 to move, so that the two card blocks 618 are located on the upper and lower sides of the other end of the makeup brush bristles. Then, the fourth electric telescopic rod 617 is controlled to start, and the card block 618 is used to fix the end of the makeup brush bristles. Then, the third electric telescopic rod 615 is controlled to retract, so that the end of the makeup brush bristles moves to one side of the annular groove 612. Then, the first motor 613 is controlled to start, and the bent rod 614 is used to drive the end of the makeup brush bristles to rotate. At this time, the end of the makeup brush bristles will continue to wrap around the outer wall of the annular groove 612, increasing the size of the makeup brush. The contact area between the bristles and the annular groove 612 makes it easy to use the annular groove 612 to stably wrap and fix the ends of the makeup brush bristles. After completing the fixation of the two ends of the makeup brush bristles, the third slide rail 75 is controlled to start, driving multiple third slide plates 76 to move, so that multiple annular shells 78 are moved to the top of the makeup brush bristles that need to be covered with fatty acids. Then, the second slide rail 72 is controlled to start, and the second slide plate 73 is used to drive the annular shell 78 to move, so that the annular shell 78 moves to one end of the makeup brush bristles. Then, the fifth electric telescopic rod 77 is controlled to start, driving the annular shell 78 to move downward, so that the opening below the annular shell 78 passes through the outside of the makeup brush bristles, so that the corresponding makeup brush bristles are located in the middle position of the annular shell 78. Then, the nozzle 711 is controlled to start, through the connecting shell 710 The fatty acid in the annular shell 78 is drawn into the nozzle 711 with the spring hose 712, and the fatty acid is sprayed onto the outside of the makeup brush bristles by the nozzle 711. During this process, the fourth slide rail 713 is controlled to start continuously, driving the fourth slide plate 79 to move, so that the multiple nozzles 711 can evenly spray fatty acid on the outer wall of the makeup brush bristles. At the same time, the second slide rail 72 is controlled to start, driving the second slide plate 73 to move, so that the nozzle 711 can continue to cover the other parts of the makeup brush bristles with fatty acid, thereby simulating the state of the makeup brush bristles after contacting the skin during use. After that, the four fifth slide rails 82 are controlled to start, two of which are located under the makeup brush bristles covered with fatty acids, and the other two are located under the makeup brush bristles not covered with fatty acids.Then, the fifth slide rail 82 is used to drive the fifth slide plate 83 to move, so that the sixth electric telescopic rod 84 moves to a different position below the bristles of the makeup brush. Then, the sixth electric telescopic rod 84 is controlled to start, so that the convex plate 89 contacts the corresponding bristles of the makeup brush. By controlling the second motor 87 to start, the side rod 86 is driven to rotate, thereby adjusting the angle of the convex plate 89, so that the force angle and area of the makeup brush bristles change, simulating the different force angles and areas of the makeup brush bristles when in use. Then, the first slide rail 62 is controlled to start, driving the fixed block 69 The fixed block 69 moves, thereby pulling multiple bristles of the makeup brush at the same time. When the makeup brush bristles are pulled, the detection end of the pressure sensor 610 is connected to the slider 67 through the pull rod 611, so as to detect the pressure brought by the fixed block 69 to the makeup brush bristles in real time. Then, as the fixed block 69 continues to pull the makeup brush bristles, when the makeup brush bristles break, the value of the corresponding pressure sensor 610 is observed in time to detect the tensile strength of the makeup brush bristles, and the tensile strength of the unused makeup brush bristles and the used makeup brush bristles can be detected at the same time. The present invention relates to a cosmetic brush bristle tester, wherein the first clamping plate 5 and the fixing block 69 are used to fix the two ends of the cosmetic brush bristles, and the clamping block 618 is used to wrap the end of the cosmetic brush bristles around the outer wall of the annular groove 612, so as to facilitate the stable traction and fixation of one end of the cosmetic brush bristles. The fatty acid can be evenly covered on the outer wall of the cosmetic brush bristles by the nozzle 711, accurately simulating the bristle state of the cosmetic brush after daily use, thereby accurately testing the tensile strength of the cosmetic brush bristles and ensuring that the test results truly reflect the performance of the cosmetic brush in actual use. At the same time, the convex plate 89 can be used to adjust the bending angle and bending area of the bristles, simulating the phenomenon that the cosmetic brush bristles are bent due to force during use, thereby incorporating various factors that may affect the tensile strength of the cosmetic brush bristles into the test process, and comprehensively evaluating the tensile strength of the bristles from multiple dimensions. This test method that comprehensively considers multiple factors greatly improves the accuracy and reliability of the test results of the tensile strength of the cosmetic brush bristles. ,
[0026] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.
Claims
1. A cosmetic brush bristle tensile strength testing device, comprising a test box (1), characterized in that: The bottom side wall of the test box (1) is symmetrically fixedly connected to two support plates (2), the inner wall of one end of the test box (1) is provided with a first groove (3), the upper and lower inner walls of the first groove (3) are fixedly connected to a first electric telescopic rod (4), the telescopic end of the first electric telescopic rod (4) is fixedly connected to a first clamping plate (5), the inner wall of the test box (1) is provided with a fixed test component (6) for fixing one end of the bristles and testing the tensile strength of the bristles, the inner wall of the test box (1) is provided with a covering simulation component (7) for covering the surface of the bristles with fatty acids, and the inner wall of the test box (1) is fixedly connected to a plurality of force simulation components (8) for changing the bending position of the bristles under stress; A connecting shell (710) is provided on one side of the covering simulation component (7), and a plurality of nozzles (711) are fixedly connected to the outer wall of the connecting shell (710), and the liquid inlet ends of the nozzles (711) all penetrate the side wall of the connecting shell (710) and protrude inwardly. A through hole is opened in the side wall of the connecting shell (710), and a spring hose (712) is fixedly connected to the inside of the corresponding through hole, and one end of the spring hose (712) penetrates the side wall of the annular shell (78) and protrudes inwardly.
2. A cosmetic brush bristle tensile strength testing device according to claim 1, characterized in that: The fixed test assembly (6) includes two second grooves (61) symmetrically opened on the inner walls at both ends of the test box (1), the inner wall of the second groove (61) is fixedly connected to the first slide rail (62), the side walls of the first slide rail (62) are slidably connected to the first slide plate (63), the side walls of the two first slide plates (63) are fixedly connected to the same fixed plate (64), the side wall of the fixed plate (64) is opened with a plurality of third grooves (65) corresponding to the position and number of the first grooves (3), the inner walls of the upper and lower ends of the third groove (65) are opened with a slide groove (66), the inner wall of the slide groove (66) is slidably connected to the slider (67), and the top side wall of the slider (67) is fixedly connected to the second electric telescopic rod (68).
3. A cosmetic brush bristle tensile strength testing device according to claim 2, characterized in that: The telescopic end of the second electric telescopic rod (68) is fixedly connected to a fixed block (69), and the inner wall of one end of one of the slide grooves (66) in each of the third grooves (65) is fixedly connected to a pressure sensor (610), and the detection end of the pressure sensor (610) is fixedly connected to a pull rod (611), and one end of the pull rod (611) is fixedly connected to the side wall of one end of the slider (67). An annular groove (612) is provided on the outer wall of one of the fixed blocks (69) in each of the third grooves (65), and a first motor (613) is fixedly connected to the inner wall of one end of the corresponding fixed block (69).
4. A cosmetic brush bristle tensile strength testing device according to claim 3, characterized in that: The output end of the first motor (613) is fixedly connected to a bent rod (614), one end of the bent rod (614) is fixedly connected to a third electric telescopic rod (615), the telescopic end of the third electric telescopic rod (615) is fixedly connected to a clamping plate (616), the inner walls of the upper and lower ends of the clamping plate (616) are both fixedly connected to a fourth electric telescopic rod (617), and the telescopic end of the fourth electric telescopic rod (617) is both fixedly connected to a clamping block (618).
5. A cosmetic brush bristle tensile strength testing device according to claim 1, characterized in that: The covering simulation component (7) includes fourth grooves (71) symmetrically opened on the inner walls of both ends of the test box (1), the inner walls of the fourth grooves (71) are fixedly connected to the second slide rails (72), the side walls of the second slide rails (72) are slidably connected to the second slide plates (73), the side walls of the two second slide plates (73) are fixedly connected to the same mounting plate (74), the inner wall of the mounting plate (74) is fixedly connected to the third slide rail (75), the bottom side wall of the third slide rail (75) is slidably connected to a plurality of third slide plates (76), and the bottom side wall of the third slide plate (76) is fixedly connected to a fifth electric telescopic rod (77).
6. A cosmetic brush bristle tensile strength testing device according to claim 5, characterized in that: The telescopic ends of the fifth electric telescopic rod (77) are fixedly connected to an annular shell (78), the inner wall of the annular shell (78) is fixedly connected to a fourth slide rail (713), the side wall of the fourth slide rail (713) is slidably connected to a fourth slide plate (79), and the side wall of the fourth slide plate (79) is fixedly connected to a connecting shell (710).
7. A cosmetic brush bristle tensile strength testing device according to claim 1, characterized in that: The force simulation component (8) comprises a plurality of connection blocks (81) fixedly connected to the inner wall of the test box (1), the inner walls of the connection blocks (81) are fixedly connected to a fifth slide rail (82), the top side walls of the fifth slide rail (82) are slidably connected to a fifth slide plate (83), and the top side walls of the fifth slide plate (83) are fixedly connected to a sixth electric telescopic rod (84).
8. A cosmetic brush bristle tensile strength testing device according to claim 7, characterized in that: The telescopic ends of the sixth electric telescopic rod (84) are fixedly connected to a concave plate (85), the inner wall of the concave plate (85) is rotatably connected to a side rod (86), the side walls of the concave plate (85) are fixedly connected to a second motor (87), the output end of the second motor (87) passes through the side wall of the concave plate (85) and is fixedly connected to one end of the side rod (86), and the rod wall of the side rod (86) is fixedly connected to a convex plate (89).