Simulation test device for pullout force of bristles of cosmetic brush

By employing technologies such as servo cylinders, electric clamps, and electrostatic collection, the test simulates the application of cosmetic brushes under combined forces, solving the problem that existing devices cannot realistically simulate actual use and improving testing accuracy and automation.

CN120801030AInactive Publication Date: 2025-10-17SHENZHEN MEIYIYA COSMETICS CO LTD
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Patent Information

Application Number
CN202511141163.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-15
Publication Date
2025-10-17
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing makeup brush pull-out force testing devices cannot simulate the complex stress scenarios that makeup brushes experience in actual use, making it difficult for test results to reflect true durability and hindering product optimization.

Method used

It uses a servo cylinder and an electric clamp in combination with a servo motor, worm gear and worm to simulate the pulling and torsional forces of a makeup brush in use. The force value detector detects the force in real time, the electrostatic generating plate collects residual hairs and the array detector detects the weight of the residual hairs.

Benefits of technology

It enables realistic simulation testing of makeup brushes under combined forces, improves the reference value of test data, reduces human error, and enhances the efficiency of residual hair collection and the degree of testing automation.

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Abstract

The invention provides a cosmetic brush bristle pull-out force simulation test device, and particularly relates to the technical field of bristle testing, the cosmetic brush bristle pull-out force simulation test device comprises a main cabinet, a test board fixedly arranged on the top surface of the main cabinet, a control module mounted on one side of the test board, and a pull-out test mechanism arranged on the top surface of the test board, the end portion of a piston rod of the servo air cylinder is connected with a second electric clamp through an active simulation mechanism, the second electric clamp is provided with a force value detector, and the servo air cylinder is matched with the first electric clamp and the second electric clamp, so that drawing testing of brush bristles of the cosmetic brush in the horizontal direction can be achieved; and a servo motor, a worm gear and a worm are matched, a second electric clamp is driven to swing, and the servo motor, the worm gear and the worm are cooperated with the drawing action of a servo air cylinder, so that the working condition that the cosmetic brush bears pulling force and twisting force at the same time in use is truly simulated, the problem that a traditional single drawing test is disjointed with an actual use scene is solved, and test data have higher reference value.
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Description

TECHNICAL FIELD

[0001] The application provides a cosmetic brush bristle pull-out force simulation test device, and particularly relates to the technical field of bristle testing. BACKGROUND

[0002] Bristle pull-out force testing can evaluate the firmness of the connection between the bristles and the brush handle, which is crucial for ensuring the stability and reliability of the product during use. For example, in a cosmetic brush, high pull-out force means that the bristles can be firmly fixed on the brush handle and withstand daily repeated use and cleaning, which is an important guarantee for evaluating the quality and safety of the cosmetic brush.

[0003] In the patent with the authorization announcement number CN117490900B, a cosmetic brush pull-out force test device is disclosed. The test device uses a test mechanism in cooperation with a support mechanism to automatically cover and clamp the cosmetic brush, without the need for manual operation by the staff, making the device more convenient to use. The unloading rack cooperates with the inclined rack, and the cosmetic brush is in an inclined state when the movable rack moves downward, falling onto the inclined rack to achieve the purpose of automatic unloading, improving the detection efficiency of the device.

[0004] Therefore, the cosmetic brush bristle pull-out force test device in the prior art has a single test link and lacks a force simulation link. It is mostly a single-direction linear pull-out, which cannot simulate the combined stress in actual use, especially the bending deformation that occurs frequently in daily use of the cosmetic brush. If this situation is not simulated in the test, the test results will not reflect the true durability, which is not conducive to product optimization.

[0005] Therefore, the application provides a cosmetic brush bristle pull-out force simulation test device to make up for and improve the shortcomings of the prior art. SUMMARY

[0006] In view of the defects of the prior art, the application provides a cosmetic brush bristle pull-out force simulation test device, which can effectively solve the technical problem that the existing test device cannot simulate the combined stress of the cosmetic brush in actual use, which is not conducive to product optimization.

[0007] To achieve the above purpose, the application realizes the following technical solutions:

[0008] The application discloses a cosmetic brush bristle pull-out force simulation test device, which comprises a main cabinet, a test table is fixedly arranged on the top surface of the main cabinet, a control module is installed on one side of the test table, and a pull-out test mechanism is arranged on the top surface of the test table.

[0009] The drawing test mechanism comprises a first mounting seat and a second mounting seat fixedly installed on two sides of the top surface of the test table respectively, and a first electric clamp and a servo cylinder are installed on the side close to each other of the first mounting seat and the second mounting seat respectively, the end of the piston rod of the servo cylinder is connected with a second electric clamp through a driving simulation mechanism, and a force value detector is arranged on the second electric clamp.

[0010] The driving simulation mechanism comprises a notch column fixedly connected with the end of the piston rod of the servo cylinder, an axle body rotatably arranged on the notch column, a T-shaped plate fixedly connected with the outer circumferential surface of the axle body, one end of the T-shaped plate away from the axle body fixedly connected with the second electric clamp, a worm wheel coaxially fixedly connected with one side end of the axle body, a top plate fixedly arranged on one side of the top of the notch column, a worm rotatably arranged on one side of the bottom of the top plate and meshingly connected with the worm wheel, a servo motor slidingly arranged on the side close to the worm of the top surface of the test table, and the output shaft of the servo motor connected with the bottom of the worm.

[0011] Preferably, the first electric clamp and the second electric clamp each comprise a driving part and a clamping part, and the force value detector is inlaidly arranged on the clamping part.

[0012] Preferably, the force value detector is configured as a force value sensor for detecting the force value of the drawing test.

[0013] Preferably, the output shaft of the servo motor and the bottom of the worm are connected through a shaft coupling to realize power transmission.

[0014] Preferably, the top surface of the test table is fixedly provided with a sliding rail, the sliding rail is slidingly connected with a sliding table, and the bottom of the servo motor is fixedly connected with the top surface of the sliding table through fastening bolts.

[0015] Preferably, the stroke of the sliding table on the sliding rail matches the extension and retraction lead of the piston rod of the servo cylinder.

[0016] Preferably, a recycling treatment mechanism is arranged on the test table below the second electric clamp, and the recycling treatment mechanism comprises a recycling cabin fixedly installed on the top surface of the test table, and an electrostatic generation plate clampedly installed in the recycling cabin.

[0017] The recycling treatment mechanism further comprises an electrostatic generator integrally arranged in a main cabinet, the electrostatic generator is connected with the electrostatic generation plate through wires, and a front notch is arranged on the front side of the recycling cabin and flush with the electrostatic generation plate.

[0018] Preferably, the top of the recycling cabin is flared, and is located directly below the clamping part of the second electric clamp.

[0019] Preferably, a strip-shaped through hole is arranged on the bottom of the recycling cabin, and the strip-shaped through holes are linearly and equidistantly distributed on the bottom of the recycling cabin.

[0020] Preferably, the recycling mechanism further comprises an array detector installed between the bottom of the electrostatic generating plate and the inner bottom wall of the recycling cabin, and the array detector is electrically connected with the test table.

[0021] Compared with the known prior art, the technical scheme provided by the application has the following beneficial effects:

[0022] The brush hair pulling force simulation test device of the cosmetic brush utilizes the cooperation of the servo air cylinder and the first and second electric clamps to not only test the pulling of the cosmetic brush hair in the horizontal direction, but also cooperate with the servo motor, the worm gear, the worm, and the driving of the second electric clamp swing to simulate the working condition of the cosmetic brush simultaneously bearing the pulling force and the torsional force in use, solve the problem of the disconnection between the traditional single pulling test and the actual use scene, and the test data has more reference value.

[0023] The force value detector is embedded in the second electric clamp to directly collect the force of the brush hair, reduce the force transmission loss, and improve the force value detection precision.

[0024] The control module realizes the linkage of parameter presetting, real-time monitoring, and automatic shutdown to improve the test automation degree and reduce the manual operation error.

[0025] The start and stop of the electrostatic generating plate are linkage controlled by the control module, the flared design of the recycling cabin is cooperated, the residual hair is adsorbed by the electrostatic generating plate, the residual hair collection efficiency is improved, especially the collection effect of small residual hair is better than that of the traditional mechanical collection method, and the residual hair scattering pollution to the test environment is avoided.

[0026] Meanwhile, the array detector is utilized to realize the real-time detection of the residual hair weight, provide a quantitative basis for evaluating the connection strength of the brush hair and the brush handle, and enrich the test data dimension. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a front perspective structure diagram of the application;

[0028] Figure 2 is another perspective structure diagram of the application;

[0029] Figure 3 is a local perspective structure diagram of related components at the test table in the application;

[0030] Figure 4 is a local perspective structure diagram of related components at the notch column in the application;

[0031] Figure 5 is a local exploded perspective structure diagram at the notch column in the application;

[0032] Figure 6 is a local structure diagram of related components at the worm gear in the application in the front view state;

[0033] Figure 7 It is a partial three-dimensional structural diagram of the second electric clamp and related components of the recovery cabin in the present invention;

[0034] Figure 8 It is a partial three-dimensional structural diagram of the relevant components of the recovery cabin in the present invention;

[0035] Figure 9 It is a partial three-dimensional structural diagram of the relevant components of the array detector in the present invention.

[0036] The numbers in the figure represent:

[0037] 1. Main cabinet; 11. Test bench; 12. Control module;

[0038] Pull-out test mechanism: 13, first mounting seat; 131, first electric clamp; 14, second mounting seat; 141, servo cylinder; 142, second electric clamp; 143, force detector;

[0039] Active simulation mechanism: 21, notched column; 22, shaft; 23, T-shaped plate; 24, worm gear; 25, top plate; 26, worm; 27, servo motor; 271, slide rail; 272, slide table;

[0040] Recycling and processing mechanism: 31. Recovery cabin; 32. Electrostatic generating plate; 33. Front notch; 34. Array detector. DETAILED DESCRIPTION

[0041] The present invention will be further described below with reference to the embodiments.

[0042] Example 1:

[0043] like Figures 1 to 6 As shown, a makeup brush bristle pull-out force simulation test device includes a main cabinet 1 with a test bench 11 fixed to its top. A control module 12 is mounted on one side of the test bench 11. Specifically, the main cabinet 1 houses electronic components such as an integrated circuit control system, while the control module 12 integrates control, analysis, and display units. Specifically, the main controller (using an STM32H743 microprocessor) in the control module 12 communicates with the integrated circuit control system in the main cabinet 1 via an RS485 bus. After the tester sets parameters such as pull-out speed, stroke, and swing angle on the touch screen of the control module 12, the main controller converts these parameters into PWM signals.

[0044] It also includes a pull-out test mechanism disposed on the top surface of the test bench 11;

[0045] The pulling test mechanism comprises a first mounting seat 13 and a second mounting seat 14 fixedly installed on the top surface of the test table 11 respectively, and a first electric clamp 131 and a servo cylinder 141 are installed on the side close to each other of the first mounting seat 13 and the second mounting seat 14 respectively, the piston rod end of the servo cylinder 141 is connected with a second electric clamp 142 through a driving simulation mechanism, the second electric clamp 142 is provided with a force value detector 143, the force value detector 143 is configured as a force value sensor and is used for detecting the force value in the pulling test;

[0046] Specifically, the first electric clamp 131 and the second electric clamp 142 each comprise a driving part and a clamping part, specifically, the driving part provides clamping force for the clamping part; it is a mature technology, and the specific principle will not be described. The force value detector 143 is embeddedly installed on the clamping part, specifically, the clamping part of the first electric clamp 131 is composed of two clamping blocks provided with V-shaped grooves, and the two clamping blocks are closed to clamp the brush rod of the cosmetic brush; the clamping part of the second electric clamp 142 is also composed of two clamping blocks, and the difference from the foregoing clamping block is that the force value detector 143 is embeddedly installed on the two clamping blocks.

[0047] The servo cylinder 141 adjusts the air pressure through a proportional valve (model: SMC ITV2050) to realize stepless adjustment of the extension and retraction speed of the piston rod, and simultaneously realizes real-time feedback of displacement data through a magnetostrictive displacement sensor (integrated in the cylinder body of the servo cylinder 141) to form a closed-loop control.

[0048] The servo motor 27 sends a pulse signal to a driver (model: Panasonic MBDLN25SG) through an EtherCAT bus to control the positive and negative rotation angle of the motor (corresponding to ±15° swing of the second electric clamp 142), and compares the real-time angle data fed back by the encoder with the preset trajectory, and triggers a compensation mechanism when the deviation exceeds 0.5°.

[0049] The force value detector 143 (using HBM U9B series tension sensor, range 0-50N, accuracy 0.1%FS) converts the tension signal into a 4-20mA current signal, which is input into a 16-bit AD converter (sampling rate 1kHz) after signal conditioning module (filtering, amplification). The analysis unit of the control module 12 adopts the following logic:

[0050] • Real-time drawing of force-displacement curve, elimination of signal jitter through cubic spline interpolation;

[0051] • Automatic identification of curve peak value (maximum pull-out force) and recording of displacement and swing angle when the peak value appears;

[0052] • When the force value drops by more than 30% and lasts for 100ms, it is determined that the bristles are falling off, and a stop command is immediately sent to the servo cylinder 141 and the servo motor 27 to avoid response delay.

[0053] Further, the active simulation mechanism comprises a notch column 21 fixedly connected to the end of the piston rod of the servo cylinder 141, a shaft body 22 is rotationally arranged on the notch column 21, and the shaft body 22 and the notch column 21 are rotationally connected through an angular contact ball bearing. The shaft body 22 and the notch column 21 are connected through a 7005C angular contact ball bearing. This structure not only ensures smooth rotation of the shaft body 22, but also can withstand the axial force generated when the servo motor 27 is driven, avoids axial movement of the shaft body 22 caused by long-term use, and ensures the angular accuracy of the second electric clamp 142. The shaft body 22 rotates smoothly on the notch column 21, and the shaft body 22 is positioned to prevent displacement;

[0054] A T-shaped plate 23 is fixedly connected to the outer circumferential surface of the shaft body 22. The end of the T-shaped plate 23 away from the shaft body 22 is fixed to the second electric clamp 142. It is worth noting that the T-shaped plate 23 is fixed to the end surface of the driving part of the second electric clamp 142. A worm gear 24 is coaxially fixedly connected to one side end of the shaft body 22. A top plate 25 is fixedly arranged on one side of the top of the notch column 21. A worm shaft 26 is rotationally arranged on one side of the bottom of the top plate 25 and is meshingly connected to the worm gear 24. A servo motor 27 is slidingly arranged on one side of the top surface of the test bench 11 close to the worm shaft 26. The output shaft of the servo motor 27 is connected to the bottom of the worm shaft 26. The output shaft of the servo motor 27 and the bottom of the worm shaft 26 are connected through a shaft coupling to realize power transmission.

[0055] Specifically, as shown in Figure 6 The servo motor 27 drives the worm shaft 26 to rotate, which in turn drives the worm gear 24 to rotate. The worm gear 24 drives the T-shaped plate 23 and the second electric clamp 142 to rotate synchronously. Preferably, the up-down rotation amplitude of the second electric clamp 142 is 15°.

[0056] Further, a sliding rail 271 is fixedly arranged on the top surface of the test bench 11. A sliding table 272 is slidingly connected to the sliding rail 271. The bottom of the servo motor 27 is fixedly connected to the top surface of the sliding table 272 through fastening bolts. The stroke of the sliding table 272 on the sliding rail 271 matches the extension and retraction lead of the piston rod of the servo cylinder 141. In other words, the length of the sliding rail 271 can meet the extension and retraction distance of the piston rod of the servo cylinder 141.

[0057] The matching gap between the sliding table 272 and the sliding rail is controlled to be 0.01-0.03mm. The stroke matches the maximum extension and retraction lead of the piston rod of the servo cylinder 141. When the servo motor 27 moves synchronously with the second electric clamp 142, the worm shaft 26 and the worm gear 24 always maintain correct meshing, avoiding tooth surface wear or transmission jamming.

[0058] In use: before testing, the tester clamps and fixes the brush rod of the cosmetic brush through the upper and lower clamping blocks of the first electric clamp 131, the servo cylinder 141 drives the piston rod to extend until the upper and lower clamping blocks of the second electric clamp 142 correspond to the bristles and clamp the bristles, so as to ensure that the force direction of the bristles is consistent with the pulling direction.

[0059] Subsequently, after starting the test, the servo cylinder 141 drives the piston rod to gradually retract, and the retraction / pulling speed and the maximum retraction / pulling stroke are set through the control module 12. At the same time, the servo motor 27 drives the worm 26 to rotate, and the second electric clamp 142 is driven to alternately swing within ±15° through the worm wheel 24, the shaft body 22 and the T-shaped plate 23, so as to simulate the combined stress state of "pulling + twisting" of the cosmetic brush in use. The force value detector 143 detects the pulling force of the bristles in real time and feeds back to the control module 12, and the control module 12 records and analyzes the data.

[0060] The difference between the above-mentioned scheme and the prior art is that: the cosmetic brush bristle pull-out force simulation test device cooperates with the pulling action of the servo cylinder 141 through the servo motor 27, the worm wheel 24, the worm 26 and the driving of the second electric clamp 142 to swing, so as to truly simulate the working condition of the cosmetic brush simultaneously bearing pulling force and twisting force in use, solve the problem that the traditional single pulling test is disconnected with the actual use scene, and the test data has more reference value; the force value detector 143 is embedded in the second electric clamp 142, directly collects the force of the bristles, reduces the force transmission loss, and improves the force value detection precision; the control module 12 realizes the linkage of parameter presetting, real-time monitoring and automatic shutdown, improves the test automation degree, and reduces the manual operation error.

[0061] Embodiment two:

[0062] As shown in Figures 7 to 9 The above-mentioned cosmetic brush bristle pull-out force simulation test device further comprises a recycling treatment mechanism arranged on the test table 11 and located below the second electric clamp 142, which comprises a recycling cabin 31 fixedly installed on the top surface of the test table 11. The top of the recycling cabin 31 is flared, located directly below the clamping part of the second electric clamp 142, and the receiving area of the flared part of the recycling cabin 31 is much larger than the occupied area of the clamping part of the second electric clamp 142 and the bristle part of the cosmetic brush, so as to better catch the broken bristles. The inside of the recycling cabin 31 is clampedly installed with an electrostatic generation plate 32.

[0063] Also included is an electrostatic generator integrated in the main cabinet 1, which is connected to the electrostatic generating plate 32 through a wire. For the convenience of displaying the structure, the electrostatic generator and the wire are not annotated in the figure. A front slot 33 is arranged on the front side of the recovery cabin 31 and flush with the electrostatic generating plate 32. After the test is completed, the test personnel can use a scraper or other tools to remove the bristles attached to the upper surface of the electrostatic generating plate 32 from the front slot 33.

[0064] Further, the bottom of the recovery cabin 31 is provided with a strip-shaped through hole, which is linearly and equidistantly distributed on the bottom of the recovery cabin 31. Its function is to facilitate heat exchange during the operation of the electrostatic generating plate 32 and prevent heat accumulation during operation.

[0065] Further, the recovery processing mechanism also includes an array detector 34 installed between the bottom of the electrostatic generating plate 32 and the inner bottom wall of the recovery cabin 31. The array detector 34 is electrically connected to the test bench 11. Specifically, the array detector 34 is configured as a linear detection array composed of multiple micro weight sensors, which is used to detect the weight of the falling bristles and provide the test personnel with the weight data information of the broken bristles during the cosmetic brush pull-out test.

[0066] As a supplement: As a supplement that can be implemented:

[0067] First, a detachable silica gel pad can be added inside the clamping block of the second electric clamp 142. The surface of the silica gel pad is provided with anti-slip lines. It can not only increase the friction with the bristles to prevent slipping during pulling, but also avoid damaging the root of the bristles.

[0068] Second, the servo motor 27 can be selected with a reduction box type. By setting the parameters of the control module 12, the swing angle of the second electric clamp 142 can be expanded to ±30°, and a custom angle trajectory (such as a sine curve swing) can be supported.

[0069] Third, in addition to the embedded installation, the force value detector 143 can also be indirectly connected to the clamping part of the second electric clamp 142 through a elastic support (using a spring). The elastic support can not only transmit the force value signal, but also buffer the instantaneous impact force to avoid detection accuracy.

[0070] Fourth, the same recovery processing mechanism (recovery cabin 31, electrostatic generating plate 32, etc.) can be added below the second electric clamp 142 on the test bench 11, and a recovery control unit can be added in the control module 12. After the test is completed, the electrostatic adsorption is automatically started, and the recovery state is confirmed by the array detector 34 after the working set time is turned off.

[0071] In use: after the test is completed, first pause the servo motor 27, open the clamping block of the second electric clamp 142 up and down, contact the clamping of the bristles, then start the servo motor 27 again, drive the second clamp to keep the up and down swinging movement state, so that the bristles are pushed up and down by the second electric clamp 142.

[0072] Then, the electrostatic generator is started by the control module 12 at the same time, the electrostatic generating plate 32 generates an electrostatic field, and the bristles pulled off and swung during the test are automatically adsorbed. The array detector 34 detects the total weight of the electrostatic generating plate 32 and the residual hair in real time, and obtains the real-time weight data of the residual hair after deducting the weight of the electrostatic generating plate 32 and feeds back to the control module 12.

[0073] Finally, the control module 12 closes the electrostatic generator, and the test personnel can use the scraper to clean and collect the residual hair from the electrostatic generating plate 32 through the front notch 33. The strip-shaped through hole at the bottom of the recovery cabin 31 can realize air circulation during the test, so as to avoid the influence of heat accumulation on the adsorption performance of the electrostatic generating plate 32.

[0074] The difference between the above scheme and the prior art is that: the start and stop of the electrostatic generating plate 32 is linked and controlled by the control module 12, which cooperates with the flared design of the recovery cabin 31, uses the electrostatic adsorption of the electrostatic generating plate 32 to collect residual hair, improves the collection efficiency of residual hair, and is especially superior to the traditional mechanical collection method in the collection effect of small residual hair, avoids the pollution of residual hair scattering to the test environment; at the same time, the array detector 34 is used to realize the real-time detection of the weight of the residual hair, to provide quantitative basis for evaluating the connection strength of the bristles and the handle, such as the greater the weight of the residual hair, the worse the connection strength, and to enrich the test data dimension.

[0075] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A makeup brush bristle pull-out force simulation test device, comprising a main cabinet (1), a test bench (11) fixedly provided on the top surface of the main cabinet (1), and a control module (12) installed on one side of the test bench (11), characterized in that: It also includes a pull-out test mechanism arranged on the top surface of the test bench (11); The pulling test mechanism comprises a first mounting seat (13) and a second mounting seat (14) respectively fixedly mounted on both sides of the top surface of the test bench (11), and a first electric clamp (131) and a servo cylinder (141) are respectively mounted on the sides close to each other, the piston rod end of the servo cylinder (141) is connected to the second electric clamp (142) through an active simulation mechanism, and a force value detector (143) is provided on the second electric clamp (142); The active simulation mechanism includes a notch column (21) fixedly connected to the end of the piston rod of the servo cylinder (141), a shaft (22) is rotatably provided on the notch column (21), a T-shaped plate (23) is fixedly connected to the outer peripheral surface of the shaft (22), an end of the T-shaped plate (23) away from the shaft (22) is fixed to the second electric clamp (142), a side end of the shaft (22) is coaxially fixedly connected to a worm gear (24), a top plate (25) is fixedly provided on one side of the top of the notch column (21), a worm (26) meshing with the worm gear (24) is rotatably provided on the bottom of one side of the top plate (25), a servo motor (27) is slidably provided on the side of the top surface of the test bench (11) close to the worm gear (26), and the output shaft of the servo motor (27) is connected to the bottom of the worm gear (26).

2. The makeup brush bristle pull-out force simulation test device according to claim 1, characterized in that: The first electric clamp (131) and the second electric clamp (142) both comprise a driving portion and a clamping portion, wherein the force value detector (143) is installed in an embedded manner on the clamping portion.

3. The makeup brush bristle pull-out force simulation test device according to claim 1 or 2, characterized in that: The force value detector (143) is configured as a force value sensor and is used to detect the force value of the pulling test.

4. The makeup brush bristle pull-out force simulation test device according to claim 1, characterized in that: The output shaft of the servo motor (27) and the bottom of the worm (26) are connected via a coupling to achieve power transmission.

5. The makeup brush bristle pull-out force simulation test device according to claim 1 or 4, characterized in that: A slide rail (271) is fixedly provided on the top surface of the test bench (11), a slide table (272) is slidably connected to the slide rail (271), and the bottom of the servo motor (27) is fixedly connected to the top surface of the slide table (272) via a fastening bolt.

6. The makeup brush bristle pull-out force simulation test device according to claim 5, characterized in that: The stroke of the slide (272) on the slide rail (271) matches the telescopic lead of the piston rod of the servo cylinder (141).

7. The makeup brush bristle pull-out force simulation test device according to claim 1, characterized in that: A recycling mechanism is provided on the test bench (11) and below the second electric clamp (142), comprising a recycling cabin (31) fixedly mounted on the top surface of the test bench (11), and an electrostatic generating plate (32) is mounted inside the recycling cabin (31); The device further comprises an electrostatic generator integrated in the main cabinet (1), wherein the electrostatic generator is connected to the electrostatic generating plate (32) via a wire, and a front notch (33) is provided on the front side of the recovery cabin (31) and at a position flush with the electrostatic generating plate (32).

8. The makeup brush bristle pull-out force simulation test device according to claim 7, characterized in that: The top of the recovery chamber (31) is flared and is located directly below the clamping portion of the second electric clamp (142).

9. The makeup brush bristle pull-out force simulation test device according to claim 7, characterized in that: The bottom of the recovery cabin (31) is provided with strip-shaped through-holes, and the strip-shaped through-holes are linearly and equidistantly distributed on the bottom of the recovery cabin (31).

10. The makeup brush bristle pull-out force simulation test device according to claim 7, characterized in that: The recycling and processing mechanism further includes an array detector (34) installed between the bottom of the static generating plate (32) and the inner bottom wall of the recycling chamber (31), and the array detector (34) is electrically connected to the test bench (11).

Citation Information

Patent Citations

  • A makeup brush pull-out force testing device

    CN117490900B