Cosmetic sample dropping device

Abstract

The utility model discloses a cosmetic sample dropping device. The cosmetic sample dropping device comprises a rack assembly, a liquid dropping assembly and a control module, the rack assembly comprises a box body, a horizontal guide rail and a stepping motor for driving the guide rail, and a slidable test tube rack is arranged on the guide rail; a plurality of test tube grooves which are arranged at equal intervals are formed in the test tube rack, and test tubes are arranged on the test tube grooves; the liquid dropping assembly comprises a liquid storage box, and a peristaltic pump and a liquid dropping needle which are connected through a silica gel hose; the liquid dropping needle is fixedly arranged right above the test tube groove; the control module comprises a controller and a touch screen, and the controller synchronously controls the rotating speed of the peristaltic pump and the moving step length of the stepping motor. According to the utility model, a peristaltic pump direct-drive liquid and weighing sensor closed-loop feedback structure design is adopted, so that the liquid dropping precision is improved, and the requirement of manual reinspection is avoided; meanwhile, the linear guide rail structure design is adopted, centrifugal force interference is avoided during horizontal linear movement of the test tubes, and liquid splashing risks are eradicated; in addition, no extra tool is needed during cosmetic replacement or cleaning, use is more convenient, and the maintenance efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of cosmetic testing technology, and in particular to a cosmetic sample dispensing device. Background Technology

[0002] Existing cosmetic dispensing devices mostly use pneumatically driven liquid extrusion (such as CN222259273U), which has problems such as high requirements for airtightness and complex cleaning. In addition, the rotating test tube rack structure can cause liquid splashing due to centrifugal force during high-speed dispensing, making it impossible to guarantee dispensing accuracy and inconvenient to use and maintain.

[0003] Therefore, in order to solve the above problems, it is urgent to design an automated sample dispensing device that can achieve precise liquid dispensing and linear movement and positioning of test tubes through mechanical direct drive. Utility Model Content

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0005] A cosmetic sample dispensing device, characterized in that it includes a frame assembly, a dispensing assembly, and a control module;

[0006] The frame assembly includes a housing 1, a horizontal guide rail 2, and a stepper motor 3 for driving the guide rail. A slidable test tube rack 4 is provided on the guide rail 2. The test tube rack 4 has multiple test tube slots 5 arranged at equal intervals, and each test tube slot 5 is provided with a removable test tube 18.

[0007] The liquid-dispensing assembly includes a liquid storage box 6, a peristaltic pump 8 connected by a silicone tubing 7, and a liquid-dispensing needle 9, which is fixedly positioned above the test tube trough 5.

[0008] The control module includes a controller 11 and a touch screen 12. The controller 11 synchronously controls the speed of the peristaltic pump 8 and the step size of the stepper motor 3.

[0009] Preferably, a liquid storage box groove 16 is provided on the upper surface of the box body 1, and the liquid storage box 6 is detachably disposed in the liquid storage box groove 16. A communication port 17 communicating with the inner cavity of the box body 1 is provided at the bottom of the liquid storage box groove 16.

[0010] One end of the silicone tubing 7 passes through the connecting port 17 and is connected to the liquid storage box 6;

[0011] The silicone tubing 7 is connected to the liquid storage box 6 via a quick-connect interface 13.

[0012] Preferably, a hook 19 is provided on the inner side wall of the communication port 17.

[0013] Preferably, the dripping needle 9 is fixedly connected by the cantilever 10, and an infrared sensor 14 connected to the cantilever 10 is provided on one side below the dripping needle 9. The infrared sensor 14 is electrically connected to the control module and is used to detect the falling state of the droplet.

[0014] Preferably, a weighing sensor 15 is provided at the bottom of the test tube trough 5. The weighing sensor 15 is electrically connected to the control module and is used to verify the accuracy of the dripping volume.

[0015] Preferably, the driving end of the stepper motor 3 is provided with a screw 20, and the other end of the screw 20 passes through the threaded hole of the test tube rack 4 and is rotatably connected to the horizontal guide rail 2; during operation, the test tube rack 4 is driven to move horizontally and stably relative to the horizontal guide rail 2 by rotating the screw 20.

[0016] Preferably, the liquid storage box 6 is provided with a handle 61.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. The design adopts a peristaltic pump direct-drive liquid and a closed-loop feedback structure of weighing sensor to improve the dripping accuracy and avoid the need for manual re-inspection.

[0019] 2. The quick-change interface structure design, compared with the existing pneumatic system and airtightness detection method, eliminates the need for additional tools when changing cosmetics or cleaning, making it more convenient to use and more efficient to maintain.

[0020] 3. The linear guide rail replaces the rotating support, and the droplet monitoring structure is designed with infrared sensors. The test tube moves horizontally and linearly without centrifugal force interference, eliminating the risk of liquid splashing. Moreover, the infrared sensor detects the droplet shape in real time, and automatically alarms and compensates for abnormal conditions (such as flow interruption or bubbles). Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] The components include: 1. Box body; 2. Horizontal guide rail; 3. Stepper motor; 4. Test tube rack; 5. Test tube trough; 6. Liquid storage box; 7. Silicone tubing; 8. Peristaltic pump; 9. Dropping needle; 10. Cantilever; 11. Controller; 12. Touch screen; 13. Quick-change interface; 14. Infrared sensor; 15. Weighing sensor; 16. Liquid storage box trough; 17. Connecting port; 18. Test tube; 19. Hook; 20. Screw; 61. Handle. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," "up," "down," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0027] like Figure 1 As shown, a cosmetic dispensing device includes a frame assembly, a dispensing assembly, and a control module;

[0028] The frame assembly includes a housing 1, a horizontal guide rail 2, and a stepper motor 3 for driving the guide rail. A slidable test tube rack 4 is provided on the guide rail 2. The test tube rack 4 has multiple test tube slots 5 arranged at equal intervals, and each test tube slot 5 is provided with a removable test tube 18.

[0029] The liquid-dispensing assembly includes a liquid storage box 6, a peristaltic pump 8 connected by a silicone tubing 7, and a liquid-dispensing needle 9, which is fixedly positioned above the test tube trough 5.

[0030] The control module includes a controller 11 and a touch screen 12. The controller 11 synchronously controls the speed of the peristaltic pump 8 and the step size of the stepper motor 3.

[0031] In this embodiment, during use, the cosmetic concentrate is first filled into the storage bottle 6 and connected to the silicone tubing 7 via the quick-connect interface 13; then, the drip volume is set to 0.5 mL / tube and the number of test tubes is 5 on the touch screen 12; then, the controller 11 is activated, and the stepper motor 3 drives the test tube rack 4 to move to the first test tube slot 5 and align it with the drip needle 9; then, the peristaltic pump 8 runs at 200 rpm for 5 seconds to complete the dripping; then, the above process is repeated until all test tubes have been dripped.

[0032] In this embodiment, the touch screen 12 is used to set the drop volume, the number of test tubes, and the drop interval time to meet the testing needs of various cosmetic concentrates.

[0033] In this embodiment, the controller 11 has a built-in dripping algorithm to calculate the peristaltic pump speed and the stepper motor stepping amount based on the input parameters.

[0034] Furthermore, such as Figure 1 As shown, a liquid storage box groove 16 is provided on the upper surface of the box body 1, and the liquid storage box 6 is detachably installed in the liquid storage box groove 16. A communication port 17 communicating with the inner cavity of the box body 1 is provided at the bottom of the liquid storage box groove 16.

[0035] One end of the silicone tubing 7 passes through the connecting port 17 and is connected to the liquid storage box 6;

[0036] The silicone tubing 7 is connected to the liquid storage box 6 via a quick-connect interface 13.

[0037] In this embodiment, when the cosmetic concentrate in the liquid storage box 6 is used up, external force causes the liquid storage box 6 to detach from the liquid storage box slot 16. After it is completely detached, the silicone tube 7 is separated from the liquid storage box 6 through the quick-change interface 13, so that the liquid storage box 6 can be easily and quickly removed for cleaning.

[0038] Furthermore, such as Figure 1 As shown, in order to fix the silicone hose 7 after it is separated from the liquid storage box 6 and to prevent the silicone hose 7 from falling into the inner cavity of the box 1, a hook 19 is provided on the inner side wall of the communication port 17; the silicone hose 7 is hung on the hook 19.

[0039] Furthermore, such as Figure 1 As shown, the dripping needle 9 is fixedly connected by the cantilever 10. An infrared sensor 14 connected to the cantilever 10 is provided on one side below the dripping needle 9. The infrared sensor 14 is electrically connected to the control module and is used to detect the falling state of the droplet.

[0040] In this embodiment, when the device is running, the infrared sensor 14 monitors the droplet shape in real time. When a droplet flow interruption is detected, the controller 11 automatically increases the speed of the peristaltic pump to compensate for the flow rate, thereby ensuring the continuity of the droplet flow.

[0041] Furthermore, such as Figure 1 As shown, in order to improve the accuracy of the liquid volume in each test tube 18, a weighing sensor 15 is installed at the bottom of the test tube trough 5. The weighing sensor 15 is electrically connected to the control module and is used to verify the accuracy of the liquid volume. During the process, the actual liquid volume of each test tube 18 is detected by the weighing sensor 15. If the error exceeds ±2%, an alarm is triggered and the process is paused.

[0042] In this embodiment, the controller 11 incorporates a drip volume calibration algorithm to dynamically adjust the rotation speed of the peristaltic pump 8 based on feedback data from the weighing sensor 15.

[0043] Furthermore, such as Figure 1 As shown, in order to ensure the smooth and reliable movement of the reagent rack 4, the driving end of the stepper motor 3 is provided with a screw 20. The other end of the screw 20 passes through the threaded hole of the test tube rack 4 and is rotatably connected to the horizontal guide rail 2. During operation, the test tube rack 4 is driven to move horizontally and stably relative to the horizontal guide rail 2 by rotating the screw 20.

[0044] Furthermore, such as Figure 1 As shown, in order to improve the convenience of taking out and putting in the liquid storage box 6, a handle 61 is provided on the liquid storage box 6.

[0045] In this embodiment, the controller 11 has a built-in drip volume calibration algorithm to dynamically adjust the speed of the peristaltic pump 8 based on the feedback data from the weighing sensor 15.

[0046] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model patent.

Claims

1. A cosmetic sample dispensing device, characterized in that, Includes rack assembly, drip assembly, and control module; The frame assembly includes a housing (1), a horizontal guide rail (2) and a stepper motor (3) for driving the guide rail. A slidable test tube rack (4) is provided on the guide rail (2). Multiple test tube slots (5) are arranged at equal intervals on the test tube rack (4), and each test tube slot (5) is provided with a test tube (18) that can be placed and removed. The dripping assembly includes a liquid storage box (6), a peristaltic pump (8) connected by a silicone tube (7), and a dripping needle (9), which is fixedly positioned above the test tube trough (5). The control module includes a controller (11) and a touch screen (12). The controller (11) synchronously controls the rotation speed of the peristaltic pump (8) and the step size of the stepper motor (3).

2. The cosmetic sample dispensing device according to claim 1, characterized in that, The upper surface of the box (1) is provided with a liquid storage box groove (16), and the liquid storage box (6) is detachably installed in the liquid storage box groove (16). The bottom of the liquid storage box groove (16) is provided with a communication port (17) that communicates with the inner cavity of the box (1). One end of the silicone tubing (7) passes through the connecting port (17) and is connected to the liquid storage box (6); The silicone tubing (7) is connected to the liquid storage box (6) via a quick-connect interface (13).

3. The cosmetic sample dispensing device according to claim 2, characterized in that, A hook (19) is provided on the inner wall of the connecting port (17).

4. The cosmetic sample dispensing device according to claim 1, characterized in that, The dripping needle (9) is fixedly connected by a cantilever (10). An infrared sensor (14) connected to the cantilever (10) is provided on one side below the dripping needle (9). The infrared sensor (14) is electrically connected to the control module and is used to detect the falling state of the droplet.

5. A cosmetic sample dispensing device according to claim 1, characterized in that, A weighing sensor (15) is installed at the bottom of the test tube tank (5). The weighing sensor (15) is electrically connected to the control module and is used to verify the accuracy of the dripping volume.

6. The cosmetic sample dispensing device according to claim 1, characterized in that, The stepper motor (3) is equipped with a screw (20) at its drive end. The other end of the screw (20) passes through the threaded hole of the test tube rack (4) and is rotatably connected to the horizontal guide rail (2).

7. A cosmetic sample dispensing device according to claim 1, characterized in that, The liquid storage box (6) is provided with a handle (61).

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