Cosmetic detection device and sampling assembly thereof

Abstract

The invention discloses a cosmetic detection device and a sampling assembly thereof, and relates to the technical field of cosmetic detection.The cosmetic detection device comprises a photometer, a cuvette and the sampling assembly, a sample cavity is formed in one side of the top of the photometer, and a control panel is arranged on the other side of the top of the photometer; a sample cavity is formed in the cuvette, one end of the sample cavity is rotationally connected with a cover body, a light source window is arranged on one side of the sample cavity, and a receiving window is arranged on the other side of the sample cavity. The cuvette is positioned by utilizing the two wiping heads and the two clamping plates, so that the stability of a cosmetic sample in the cuvette during detection is improved; the light-transmitting surface of the cuvette is wiped and cleaned by the wiping layers on the inner sides of the two wiping heads, the light-transmitting surface of the cuvette is kept clean, the mounting seat is driven by the first electric telescopic rod to move upwards, the suction and injection assembly is matched to suck gas and discharge the gas downwards from the suction tube, and impurities in the mounting seat are removed, so that the mounting positions of the cuvette are consistent, and the cuvette mounting efficiency is improved. And measurement errors are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of cosmetics detection, in particular to a cosmetics detection device and a sampling component thereof. Background Art

[0002] Cosmetics come into direct contact with human skin, so their safety is extremely important. By testing cosmetics, we can understand the harmful ingredients in cosmetics and ensure that the products do not contain harmful substances to protect the health of consumers. By testing cosmetics with a photometer, we can ensure the stability and consistency of the quality of cosmetics through the test results, thereby ensuring the stability and reliability of product quality. In addition, regular testing and evaluation can discover problems or deficiencies in products, promote product technological innovation, and improve product quality. A Chinese patent application with application number CN201811428230.2 discloses a translucent cosmetic solution impurity detection device, including a base plate, a column fixedly connected to the middle of the base plate, a top of the column fixedly connected to a tray, a liquid storage bottle is provided above the tray, the column is rotatably connected to a rotating disk, the lower part of the rotating disk is fixedly connected to a drive motor, and the output shaft of the drive motor is fixedly connected to a first bevel gear and a first gear.

[0003] A Chinese patent application with application number CN201810278256.7 discloses a sampling device for detecting the acidity and alkalinity of cosmetics, including a bottom plate, a support plate connected to the top right side of the bottom plate, a top plate connected to the top of the support plate, a vertical plate connected to the bottom left side of the bottom plate, a horizontal plate connected to the lower right side of the vertical plate, an opening on the right side of the horizontal plate, a lifting device provided on the right side of the vertical plate, and a suction device provided on the lifting component of the lifting device. The above-mentioned cosmetics detection and sampling device cannot accurately position the colorimetric dish horizontally during detection, which will affect the accuracy of the cosmetics detection results, and the sampling of cosmetics samples needs to rely on manual sampling, which has low efficiency in cosmetics detection.

[0004] In addition, when the cuvette containing the cosmetic sample is tested by a photometer, there are stains on the light-transmitting surface of the cuvette that cannot be removed, and there are splashed liquid beads on the cuvette, which affect the normal path of the detection light, causing errors in the test results.

[0005] Therefore, a cosmetics testing device and a sampling assembly thereof are proposed to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to disclose a cosmetics detection device and a sampling assembly thereof to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a cosmetics detection device, comprising a photometer, a cuvette and a sampling assembly, a sample cavity is provided on one side of the top of the photometer, a control panel is provided on the other side of the top of the photometer, a cover is rotatably connected to one end of the sample cavity, a light source window is provided on one side of the sample cavity, a receiving window is provided on the other side of the sample cavity, a base and a wiping assembly are provided inside the sample cavity, a groove is provided on the top of the base, a mounting seat is provided at the bottom of the groove, a mounting groove is provided on the top of the mounting seat, extrusion springs are symmetrically provided on both sides of the interior of the mounting groove, the inner end of the extrusion spring is provided with a splint corresponding to the non-light-transmitting surface of the cuvette, a first electric telescopic rod is provided at the bottom of the mounting seat, and the wiping assembly comprises a transverse cylinder corresponding to the light-transmitting surface of the cuvette, and a wiping head is provided at the telescopic end of the transverse cylinder.

[0008] Optionally, the light source window, the cuvette and the receiving window correspond to each other, the transverse cylinder and the wiping head are each provided with two, the two transverse cylinders and the wiping heads are symmetrically arranged, the wiping heads correspond to the cuvette, a wiping layer is detachably connected to the wiping head, the wiping layer is a pure cotton layer, a support frame is provided on the top of the transverse cylinder, an opening is provided in the middle of the support frame, the support frame is fixedly connected to one side of the sample chamber through a fixing rod, the movable end of the first electric telescopic rod is fixedly connected to the bottom of the mounting seat, and the fixed end of the first electric telescopic rod is fixedly connected to the lower surface of the groove.

[0009] The present invention also discloses a sampling assembly as described above, comprising a pumping assembly, an adjusting assembly and a scraping assembly, wherein the pumping assembly comprises a suction cylinder, a piston is arranged inside the suction cylinder, a push rod is arranged on the top of the piston, and the top of the push rod penetrates the top of the suction cylinder and is provided with a pumping cylinder; The adjustment assembly includes a rotating motor, the rotating shaft of the rotating motor is fixedly connected to a second electric telescopic rod through a connecting rod, and the telescopic end of the second electric telescopic rod is fixedly connected to the suction cylinder through a connecting frame; The scraper assembly includes a lifting cylinder, the telescopic end of the lifting cylinder is slidably connected to a scraper, the upper surface of the scraper is provided with a slide groove, one side of the slide groove is provided with an electric spring, one end of the electric spring is fixedly connected to the telescopic end of the lifting cylinder, and a scraping groove is provided in the inner middle part of the scraper.

[0010] Optionally, a lifting plate is provided at the top of the push rod, the fixed end of the pumping cylinder is provided at the top of the suction cylinder, and the movable end of the pumping cylinder is fixedly connected to the lifting plate.

[0011] Optionally, the rotating shaft of the rotating motor is fixedly connected to the connecting rod, a support plate is provided on the top of the connecting rod, a support plate is provided on one side of the support plate, the bottom of the support plate is fixedly connected to the fixed end of the second electric telescopic rod, the bottom of the connecting frame is fixedly connected to the suction cylinder, the top of the connecting frame is fixedly connected to the telescopic end of the second electric telescopic rod, a mounting plate is provided at the bottom of the rotating motor, and the rotating motor is fixedly connected to one side of the photometer through the mounting plate.

[0012] Optionally, the lifting cylinder and the scraper are each provided in two numbers. After the inner sides of the two scrapers are fitted together, the two scrapers are adapted to the inner cross-section of the cuvette, the scraping groove corresponds to the outlet end of the suction cylinder, the maximum diameter of the suction cylinder is smaller than the side length of the inner side of the cuvette, and a rubber cushion layer is provided around the scraper.

[0013] Optionally, a limiting groove is provided at the bottom of the slide groove, a sliding block is provided at the telescopic end of the lifting cylinder, the sliding block corresponds to the limiting groove, and the lifting cylinder is fixedly connected to the suction cylinder.

[0014] Optionally, a photoelectric sensor is provided at the bottom of the transverse cylinder, the photoelectric sensor corresponds to the light-transmitting surface of the cuvette, and a height sensor is provided on one side of the top of the opening.

[0015] Technical effects and advantages of the present invention: 1. The present invention utilizes two wiping heads to position the top of the cuvette and utilizes two clamping plates to position the bottom of the cuvette, thereby improving the stability of the cosmetic sample in the cuvette during detection. When the first electric telescopic rod drives the cuvette to move downward, the wiping layer on the inner side of the two wiping heads wipes the light-transmitting surface of the cuvette clean, thereby keeping the light-transmitting surface of the cuvette clean and reducing interference with the detection optical fiber.

[0016] 2. The present invention detects whether the cuvette is in a normal installation position according to a height sensor, drives the mounting base to move upward through the first electric telescopic rod, cooperates with the pumping assembly to attract gas and discharge the gas downward from the suction cylinder, and removes impurities in the mounting base to ensure that the installation position of the cuvette is consistent and avoid measurement errors.

[0017] 3. The present invention uses two lifting cylinders to drive the scraper to move downward synchronously to scrape off the cosmetic sample on the outside of the outlet end of the suction cup, and then drives the scraper to move downward by one of the lifting cylinders, and uses the electric spring to reversely energize and extend, so that the scraper removes the sample residue on the bottom of the suction cup, so as to avoid the problem that the cosmetic sample residue at the bottom of the suction cup contacts with the pollutants, and is mixed when the cosmetic sample in the suction cup is squeezed out, resulting in reduced purity of the cosmetic sample and interference with the photometer detection.

[0018] 4. The present invention detects whether there are splashed liquid beads on the inner wall of the cuvette through a photoelectric sensor. When splashed liquid beads are found, the wiping head is driven by the transverse cylinder to push forward at a high frequency over a short distance. At the same time, the electric spring in the scraper is extended and contracted at a high frequency to make the cuvette vibrate, thereby reducing the adhesion between the splashed liquid beads and the inner wall of the cuvette. As the lifting cylinder drives the scraper to gradually move downward, the splashed liquid beads on the inner wall of the cuvette are wiped off. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure I of the present invention; Figure 2 It is a schematic diagram of the overall structure II of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the enlarged structure of the middle A area; Figure 4 It is a schematic diagram of the connection structure between the base and the mounting seat of the present invention; Figure 5 It is a schematic diagram of the connection structure between the cuvette and the mounting seat of the present invention; Figure 6 is a schematic diagram of the structure of the wiping assembly of the present invention; Figure 7 It is a schematic diagram of the connection structure of the pumping assembly and the regulating assembly of the present invention; Figure 8 It is a schematic diagram of the internal structure of the suction tube of the present invention; Fig. 9 It is a schematic diagram of the structure of the scraper assembly of the present invention; Fig.10 For the present invention Fig. 9 Schematic diagram of the enlarged structure of area B in the middle.

[0020] In the figure: 1, photometer; 101, sample chamber; 102, cover; 103, base; 1031, slot; 104, light source window; 105, receiving window; 106, control panel; 2, cuvette; 3, mounting seat; 301, mounting slot; 302, extrusion spring; 303, clamping plate; 304, first electric telescopic rod; 4, wiping assembly; 401, support frame; 4011, fixing rod; 4012, opening; 4013, height sensor; 402, horizontal cylinder; 4021, photoelectric sensor; 403, wiping Wiping head; 5. Extraction assembly; 501. Suction cup; 502. Piston; 503. Push rod; 5031. Lifting plate; 504. Extraction cylinder; 6. Adjustment assembly; 601. Rotating motor; 6011. Mounting plate; 602. Connecting rod; 603. Support plate; 604. Support plate; 605. Second electric telescopic rod; 6051. Connecting frame; 7. Scraping assembly; 701. Lifting cylinder; 7011. Sliding block; 702. Scraping plate; 7021. Scraping groove; 703. Sliding groove; 7031. Limiting groove; 704. Electric spring. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from the description. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0023] See also Figure 1-10 The present embodiment discloses a cosmetics detection device, including a photometer 1, a cuvette 2 and a sampling assembly. A sample cavity 101 is provided on one side of the top of the photometer 1, a control panel 106 is provided on the other side of the top of the photometer 1, a cover 102 is rotatably connected to one end of the sample cavity 101, a light source window 104 is provided on one side of the sample cavity 101, and a receiving window 105 is provided on the other side of the sample cavity 101. The detection optical fiber is emitted from the light source window 104 to the cuvette 2. After the light interacts with the cosmetic sample in the cuvette 2, the changed spectrum is received by the receiving window 105.

[0024] A base 103 and a wiping assembly 4 are provided inside the sample chamber 101, a slot 1031 is provided on the top of the base 103, a mounting seat 3 is provided at the bottom of the slot 1031, a mounting slot 301 is provided on the top of the mounting seat 3, extrusion springs 302 are symmetrically provided on both sides of the mounting slot 301, an inner end of the extrusion spring 302 is provided with a clamping plate 303 corresponding to the non-light-transmitting surface of the cuvette 2, a first electric telescopic rod 304 is provided at the bottom of the mounting seat 3, the wiping assembly 4 includes a transverse cylinder 402 corresponding to the light-transmitting surface of the cuvette 2, a wiping head 403 is provided at the telescopic end of the transverse cylinder 402, the mounting slot 301 positions the bottom end of the cuvette 2 by means of the extrusion spring 302 and the clamping plate 303, the transverse cylinder 402 cooperates with the wiping head 403 to position the top end of the cuvette 2, the bottom area of ​​the mounting slot 301 is larger than the bottom area of ​​the cuvette 2 to adapt to cuvettes 2 of different specifications.

[0025] The light source window 104, the cuvette 2 and the receiving window 105 correspond to each other, the transverse cylinder 402 and the wiping head 403 are each provided with two, the two transverse cylinders 402 and the wiping head 403 are symmetrically arranged, the wiping head 403 corresponds to the cuvette 2, a wiping layer is detachably connected to the wiping head 403, the wiping layer is a pure cotton layer, distilled water can be pre-stored in the pure cotton layer, the operator removes and replaces the wiping layer from the wiping head 403 in time according to the number of times the wiping layer is used or when there are stains on the wiping layer, a support frame 401 is provided on the top of the transverse cylinder 402, an opening 4012 is provided in the middle of the support frame 401, the support frame 401 is fixedly connected to one side of the sample chamber 101 through a fixed rod 4011, the movable end of the first electric telescopic rod 304 is fixedly connected to the bottom of the mounting seat 3, the fixed end of the first electric telescopic rod 304 is fixedly connected to the lower surface of the slot 1031, and the first electric telescopic rod 304 is a multi-section telescopic rod.

[0026] The present invention also provides a sampling assembly, which is used for the above-mentioned cosmetic detection device. The sampling assembly includes an extraction assembly 5, an adjustment assembly 6 and a scraper assembly 7. The extraction assembly 5 includes a suction cylinder 501. A piston 502 is provided inside the suction cylinder 501. A push rod 503 is provided on the top of the piston 502. A lifting plate 5031 is provided on the top of the push rod 503. The top of the push rod 503 passes through the top of the suction cylinder 501 and is provided with an extraction cylinder 504. The fixed end of the extraction cylinder 504 is provided at the top of the suction cylinder 501. The movable end of the extraction cylinder 504 is fixedly connected to the lifting plate 5031. When the extraction cylinder 504 extends upward, it cooperates with the piston 502 to attract the cosmetic sample upward. When the extraction cylinder 504 extends downward, it cooperates with the piston 502 to extrude the cosmetic sample downward.

[0027] The adjustment component 6 includes a rotating motor 601, a mounting plate 6011 is provided at the bottom of the rotating motor 601, the rotating motor 601 is fixedly connected to one side of the photometer 1 through the mounting plate 6011, the rotating shaft of the rotating motor 601 is fixedly connected to the second electric telescopic rod 605 through a connecting rod 602, the rotating shaft of the rotating motor 601 is fixedly connected to the connecting rod 602, a supporting plate 603 is provided at the top of the connecting rod 602, a support plate 604 is provided on one side of the supporting plate 603, the bottom of the support plate 604 is fixedly connected to the fixed end of the second electric telescopic rod 605, the telescopic end of the second electric telescopic rod 605 is fixedly connected to the suction tube 501 through a connecting frame 6051, the bottom of the connecting frame 6051 is fixedly connected to the suction tube 501, the top of the connecting frame 6051 is fixedly connected to the telescopic end of the second electric telescopic rod 605, and the suction tube 501 is adjusted to move in and out of the sample chamber 101 through the adjustment component 6.

[0028] The scraper assembly 7 includes a lifting cylinder 701, which is fixedly connected to the suction cylinder 501. The telescopic end of the lifting cylinder 701 is slidably connected to a scraper 702. A slide groove 703 is provided on the upper surface of the scraper 702. A limit groove 7031 is provided at the bottom of the slide groove 703. A slider 7011 is provided at the telescopic end of the lifting cylinder 701. The slider 7011 corresponds to the limit groove 7031. An electric spring 704 is provided on one side of the slide groove 703. The electric spring 704 is provided on the other side of the slide groove 703. One end of 04 is fixedly connected to the telescopic end of the lifting cylinder 701, and a scraping groove 7021 is opened in the middle of the inner side of the scraper 702. The scraping groove 7021 corresponds to the outlet end of the suction tube 501. The lifting cylinder 701 and the scraper 702 are each provided with two. After the inner sides of the two scrapers 702 are fitted together, the two scrapers 702 are adapted to the inner cross-section of the cuvette 2. The maximum diameter of the suction tube 501 is smaller than the side length of the inner side of the cuvette 2, and a rubber cushion layer is provided around the scraper 702.

[0029] During use, the cover 102 is flipped open, and the mounting seat 3 moves upward and close to the support frame 401 under the drive of the first electric telescopic rod 304. The bottom end of the cuvette 2 corresponds to the opening 4012 and is inserted between the two clamping plates 303. The inner top of the clamping plate 303 is provided with an inclined surface to facilitate the insertion of the bottom end of the cuvette 2 between the two clamping plates 303. When the bottom end of the cuvette 2 contacts the top of the clamping plate 303, the inclined surface on the top of the clamping plate 303 causes the squeezing spring 302 to drive the clamping plate 303 to contract, and the elastic supporting force of the squeezing spring 302 makes the clamping plate 303 and the bottom end of the cuvette 2 fit tightly. Then the first electric telescopic rod 304 contracts and exerts a clamping force on the bottom end of the cuvette 2 through the two clamping plates 303, bringing The cuvette 2 is moved downward. During this process, the two horizontal cylinders 402 drive the wiping heads 403 to move toward the direction of the cuvette 2, so that the wiping layer contacts the light-transmitting surface of the cuvette 2. The friction between the wiping layer and the light-transmitting surface of the cuvette 2 is less than the clamping force of the two clamping plates 303 on the cuvette 2. When the first electric telescopic rod 304 drives the mounting seat 3 and the cuvette 2 to move downward, the wiping layers on the inner sides of the two wiping heads 403 first contact the bottom of the light-transmitting surface of the cuvette 2. When the first electric telescopic rod 304 continues to drive the mounting seat 3 and the cuvette 2 to move downward, the light-transmitting surface of the cuvette 2 is wiped clean from bottom to top by the wiping layer, so as to avoid measurement errors caused by stains on the light-transmitting surface of the cuvette 2.

[0030] When the mounting base 3 moves downward to the bottom, the two wiping heads 403 are located at the top of the cuvette 2, and the two clamps 303 are located at the bottom of the cuvette 2. The two wiping heads 403 and the two clamps 303 support the cuvette 2 to achieve the horizontal positioning of the cuvette 2, thereby improving the stability of the cosmetic sample in the cuvette 2 during detection.

[0031] However, when impurities fall into the mounting groove 301, the thickness of the impurities will cause the position of the cuvette 2 to be inconsistent with the normal installation position, resulting in measurement errors. In this regard, before the cuvette 2 is inserted into the mounting groove 301, first check whether there are impurities at the bottom of the cuvette 2. At the same time, the cuvette 2 is pressed to the bottom corresponding to the mounting groove 301 when it is installed. A height sensor 4013 is provided on one side of the top of the opening 4012. A distance threshold D is preset in the height sensor 4013. The distance threshold D is the distance between the height sensor 4013 and the top surface of the cuvette 2. When the first electric telescopic rod 304 drives the mounting seat 3 to move downward to the bottom, if the height sensor 4013 detects that the distance between the height sensor 4013 and the top surface of the cuvette 2 is less than the distance threshold D, it indicates that there are impurities between the cuvette 2 and the mounting groove 301. At this time, the height sensor 4013 will issue an alarm prompt sound to remind the operator. At the same time, the first electric telescopic rod 304 drives the mounting seat 3 to move upward to push the cuvette 2 out of the opening 4012. Then the operator pinches the non-light-transmissive top of the cuvette 2. The suction cylinder 501 is pulled out of the surface and outward, and the rotating motor 601 drives the suction cylinder 501 to move to the corresponding position of the installation groove 301 through the connecting rod 602, the supporting plate 603, the supporting plate 604 and the second electric telescopic rod 605. The pumping cylinder 504 drives the lifting plate 5031, the push rod 503 and the piston 502 to move upward, and the external gas enters through the bottom of the suction cylinder 501. Then, the second electric telescopic rod 605 drives the suction cylinder 501 to move downward through the connecting frame 6051, so that the outlet end of the suction cylinder 501 is close to and aligned with the center of the installation groove 301. The pumping cylinder 504 contracts rapidly, and the piston 502 is driven to move downward rapidly through the lifting plate 5031 and the push rod 503, so that the gas at the bottom of the piston 502 is quickly discharged downward through the outlet end at the bottom of the suction cylinder 501, and the impurities are blown out of the installation groove 301 by the impact of the gas quickly discharged from the bottom of the suction cylinder 501 on the installation groove 301. Then the operator inserts the bottom of the cuvette 2 between the two clamping plates 303, and the first electric telescopic rod 304 drives the mounting seat 3 and the cuvette 2 to move downward to the bottom.

[0032] After the cuvette 2 is installed, the rotating motor 601 drives the suction tube 501 to correspond to the sampling bottle outside the photometer 1 through the connecting rod 602, the supporting plate 603, the supporting plate 604 and the second electric telescopic rod 605. The sampling bottle is provided with a cosmetic sample to be detected. The second electric telescopic rod 605 drives the suction tube 501 to move downward through the connecting frame 6051, so that the outlet end of the suction tube 501 is inserted into the cosmetic sample to be detected, and then the lifting plate 5031, the push rod 503 and the piston 502 are driven to move upward through the pumping cylinder 504. The negative pressure generated between the piston 502 and the suction tube 501 when it moves upward is used to suck the cosmetic sample to be detected into the suction tube 501. Then, the second electric telescopic rod 605 contracts and drives the suction tube 501 to move out of the cosmetic sample to be detected through the connecting frame 6051. At this time, there are cosmetic sample residues on the suction tube 501. In order to prevent the cosmetic sample residues on the suction tube 501 from dripping into the sample chamber 101 and causing contamination when the rotating motor 601 drives the suction tube 501 to move to the sample chamber 101, after the suction tube 501 completes sampling of the cosmetic sample to be tested, the scraper 702 is driven to move downward synchronously by the two lifting cylinders 701, and the electric spring 704 is in a compressed state, so that the lower surface of the scraper 702 is lower than the lower surface of the suction tube 501, and the cosmetic sample residues on the side wall of the suction tube 501 are scraped off again into the sampling bottle, and then one of the lifting cylinders 701 drives the scraper 702 to continue to move downward, so that the upper surface of the scraper 702 is flush with the lower surface of the outlet end of the suction tube 501, and the electric spring 704 loses the restriction of the telescopic end of the lifting cylinder 701, and the electric spring 704 is reversely energized, and the mutually repelling force between each turn of the spring in the electric spring 704 is used to make The electric spring 704 is extended, and cooperates with the horizontal limiting effect of the limiting groove 7031 on the slider 7011, so that the upper surface of the scraper 702 is in contact with the lower surface of the suction cylinder 501 and moves to the other side. During the horizontal movement of the scraper 702, the cosmetic sample residue on the lower surface of the suction cylinder 501 is scraped off, and the cosmetic sample residue scraped off from the lower surface of the suction cylinder 501 falls into the sampling bottle, so as to avoid the cosmetic sample residue at the bottom of the suction cylinder 501 from contacting with pollutants, and the cosmetic sample in the suction cylinder 501 is mixed when it is squeezed into the cuvette 2, resulting in reduced purity of the cosmetic sample, which interferes with the detection of the photometer 1. After the cosmetic sample residue on the lower surface of the suction cylinder 501 is scraped off, the electric spring 704 is powered off, and the rebound force of the electric spring 704 is used to make the electric spring 704 drive the scraper 702 to retract and reset, and then the lifting cylinder 701 drives the scraper 702 to move upward to one side of the suction cylinder 501.

[0033] Then the second electric telescopic rod 605 contracts and drives the connecting frame 6051 and the suction cylinder 501 to move upward, so that the suction cylinder 501 is higher than the upper surface of the photometer 1, and the rotating motor 601 drives the suction cylinder 501 to move to a position corresponding to the cuvette 2 through the connecting rod 602, the support plate 603, the support plate 604, the second electric telescopic rod 605 and the connecting frame 6051, and then the second electric telescopic rod 605 drives the suction cylinder 501 to move downward through the connecting frame 6051, so that the outlet end of the suction cylinder 501 is inserted into the cuvette 2, and then the pumping cylinder 504 drives the piston 502 to move downward through the lifting plate 5031 and the push rod 503, and the cosmetic sample at the bottom of the piston 502 is squeezed downward from the outlet end of the suction cylinder 501 into the inside of the cuvette 2. When the piston 502 moves downward to the bottom, the extrusion of the cosmetic sample in the suction cylinder 501 is completed. At this time, the second electric telescopic rod 605 drives the suction cylinder 501 to move upward out of the cuvette 2 through the connecting frame 6051.

[0034] However, when the liquid cosmetic sample is squeezed into the cuvette 2, the cosmetic sample will be splashed on the inner wall of the cuvette 2 to form splashed liquid beads. At this time, when the light passes through the cuvette 2, the splashed liquid beads on the inner wall of the cuvette 2 will change the propagation path of the light, affecting the accuracy of the cosmetic sample detection. In this regard, the following improvements are made: The light-transmitting surface outside the cuvette 2 has been wiped clean by the wiping layer on the wiping head 403 . A photoelectric sensor 4021 is provided at the bottom of the horizontal cylinder 402 to detect whether there are splashed liquid beads on the inner wall of the cuvette 2 .

[0035] When in use, after the second electric telescopic rod 605 drives the suction tube 501 to move out of the cuvette 2, the photoelectric sensor 4021 is used to detect whether there are splashed liquid beads in the cuvette 2. If there are splashed liquid beads on the inner wall of the cuvette 2, the splashed liquid beads will change the propagation path of the light. The photoelectric sensor 4021 detects these light signals, indicating that there are splashed liquid beads on the inner wall of the cuvette 2. At this time, the two lifting cylinders 701 drive the two scrapers 702 to move downward synchronously, and the edges of the two scrapers 702 fit the inner wall of the cuvette 2. As the scrapers 702 continue to move downward, the scrapers 702 are close to the cuvette. 2, at this time, one of the transverse cylinders 402 drives the wiping head 403 to push forward a short distance, and at the same time, the other transverse cylinder 402 drives the wiping head 403 to retract backward a short distance. The transverse cylinder 402 drives the wiping head 403 to push forward a short distance and retract at a high frequency, and at the same time, the electric spring 704 in the scraper 702 extends and retracts at a high frequency, and as the lifting cylinder 701 drives the scraper 702 to gradually move downward, the splashing liquid beads on the inner wall of the cuvette 2 are gradually wiped off. Specifically, the two clamping plates 303 correspond to the non-light-transmitting surface of the cuvette 2, and the two clamping plates 303 are not The movement of the wiping head 403 driven by the transverse cylinder 402 is hindered. When the transverse cylinder 402 drives the wiping head 403 to extend forward, the electric spring 704 in the scraper 702 close to the transverse cylinder 402 is compressed, and the electric spring 704 in the scraper 702 away from the transverse cylinder 402 is stretched. When the transverse cylinder 402 drives the wiping head 403 to retract backward, the electric springs 704 in the two scrapers 702 are reset by their own resilience and drive the cuvette 2 to move in the direction of the transverse cylinder 402. When the transverse cylinder 402 drives the wiping head 403 to move at a high frequency and a short distance, the electric spring 704 in the scraper 702 is reset by its own resilience and drives the cuvette 2 to move in the direction of the transverse cylinder 402. During the horizontal movement, the cuvette 2 is vibrated by the high-frequency impact on the cuvette 2. During this process, the outer sides of the two scrapers 702 are kept in contact with the inner wall of the cuvette 2. The adhesion between the splashed liquid beads and the inner wall of the cuvette 2 is reduced by the vibration of the cuvette 2. At the same time, the lifting cylinder 701 drives the scraper 702 to move slowly downward, so as to gradually wipe off the splashed liquid beads on the inner wall of the cuvette 2. When the scraper 702 moves downward to the upper surface close to the cosmetic sample, the splashed liquid beads scraped downward from the inner wall of the cuvette 2 by the scraper 702 are mixed into the cosmetic sample again.

[0036] Then, the two horizontal cylinders 402 are extended to the same length, so that the two wiping heads 403 are kept corresponding to the top of the cuvette 2, and the two clamping plates 303 cooperate with the bottom of the cuvette 2 to keep the cuvette 2 in a horizontal position. Then, the lifting cylinder 701 drives the scraper 702 to escape from the inside of the cuvette 2 and reset it. Then, the rotating motor 601 rotates the suction tube 501 out of the sample chamber 101 through the connecting rod 602, the supporting plate 603, the supporting plate 604, the second electric telescopic rod 605 and the connecting frame 6051. The cover body 102 closes the sample chamber 101, and the photometer 1 is started through the control panel 106, so that the detection light is emitted to the cuvette 2 through the light source window 104. After the light interacts with the cosmetic sample in the cuvette 2, the spectral characteristics change and are received by the receiving window 105. The composition and content of the cosmetic sample are calculated by analyzing the spectrum.

[0037] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A cosmetics testing device, comprising a photometer (1), a cuvette (2) and a sampling assembly, wherein a sample cavity (101) is provided on one side of the top of the photometer (1), a control panel (106) is provided on the other side of the top of the photometer (1), one end of the sample cavity (101) is rotatably connected to a cover (102), one side of the sample cavity (101) is provided with a light source window (104), and the other side of the sample cavity (101) is provided with a receiving window (105), characterized in that: A base (103) and a wiping assembly (4) are provided inside the sample chamber (101); a slot (1031) is provided on the top of the base (103); a mounting seat (3) is provided at the bottom of the slot (1031); a mounting slot (301) is provided on the top of the mounting seat (3); extrusion springs (302) are symmetrically provided on both sides of the mounting slot (301); a clamping plate (303) corresponding to the non-light-transmitting surface of the cuvette (2) is provided at the inner end of the extrusion spring (302); a first electric telescopic rod (304) is provided at the bottom of the mounting seat (3); and the wiping assembly (4) comprises a transverse cylinder (402) corresponding to the light-transmitting surface of the cuvette (2); a wiping head (403) is provided at the telescopic end of the transverse cylinder (402).

2. The cosmetics detection device according to claim 1, characterized in that: The light source window (104), the cuvette (2) and the receiving window (105) correspond to each other. The number of the transverse cylinder (402) and the number of the wiping heads (403) are both two. The two transverse cylinders (402) and the wiping heads (403) are symmetrically arranged. The wiping heads (403) correspond to the cuvette (2). A wiping layer is detachably connected to the wiping head (403), and the wiping layer is a pure cotton layer. A support frame (401) is provided on the top of the transverse cylinder (402). An opening (4012) is provided in the middle of the support frame (401). The support frame (401) is fixedly connected to one side of the sample chamber (101) via a fixing rod (4011). The movable end of the first electric telescopic rod (304) is fixedly connected to the bottom of the mounting seat (3). The fixed end of the first electric telescopic rod (304) is fixedly connected to the lower surface of the slot (1031).

3. A sampling component, which is applied to the cosmetics detection device according to claim 2, characterized in that: The invention comprises an extraction component (5), an adjustment component (6) and a scraper component (7), wherein the extraction component (5) comprises a suction cylinder (501), a piston (502) is provided inside the suction cylinder (501), a push rod (503) is provided on the top of the piston (502), and the top of the push rod (503) passes through the top of the suction cylinder (501) and is provided with an extraction cylinder (504); The adjustment assembly (6) comprises a rotating motor (601), the rotating shaft of the rotating motor (601) is fixedly connected to a second electric telescopic rod (605) via a connecting rod (602), and the telescopic end of the second electric telescopic rod (605) is fixedly connected to the suction cylinder (501) via a connecting frame (6051); The scraper assembly (7) comprises a lifting cylinder (701), the telescopic end of the lifting cylinder (701) is slidably connected to a scraper (702), a sliding groove (703) is provided on the upper surface of the scraper (702), an electric spring (704) is provided on one side of the sliding groove (703), one end of the electric spring (704) is fixedly connected to the telescopic end of the lifting cylinder (701), and a scraping groove (7021) is provided in the middle of the inner side of the scraper (702).

4. The sampling assembly according to claim 3, characterized in that: A lifting plate (5031) is provided at the top of the push rod (503), a fixed end of the pumping cylinder (504) is provided at the top of the suction cylinder (501), and a movable end of the pumping cylinder (504) is fixedly connected to the lifting plate (5031).

5. The sampling assembly according to claim 3, characterized in that: The rotating shaft of the rotating motor (601) is fixedly connected to the connecting rod (602); a supporting plate (603) is provided at the top of the connecting rod (602); a supporting plate (604) is provided at one side of the supporting plate (603); the bottom of the supporting plate (604) is fixedly connected to the fixed end of the second electric telescopic rod (605); the bottom of the connecting frame (6051) is fixedly connected to the suction cylinder (501); the top of the connecting frame (6051) is fixedly connected to the telescopic end of the second electric telescopic rod (605); a mounting plate (6011) is provided at the bottom of the rotating motor (601); and the rotating motor (601) is fixedly connected to one side of the photometer (1) via the mounting plate (6011).

6. The sampling assembly according to claim 3, characterized in that: The lifting cylinder (701) and the scraper (702) are each provided in pairs. After the inner sides of the two scrapers (702) are fitted together, the two scrapers (702) are adapted to the inner cross-section of the cuvette (2). The scraping groove (7021) corresponds to the outlet end of the suction tube (501). The maximum diameter of the suction tube (501) is smaller than the side length of the inner side of the cuvette (2). A rubber cushion layer is provided around the scraper (702).

7. The sampling assembly according to claim 3, characterized in that: A limiting groove (7031) is provided at the bottom of the slide groove (703), a sliding block (7011) is provided at the telescopic end of the lifting cylinder (701), the sliding block (7011) corresponds to the limiting groove (7031), and the lifting cylinder (701) is fixedly connected to the suction cylinder (501).

8. The sampling assembly according to claim 3, characterized in that: A photoelectric sensor (4021) is provided at the bottom of the transverse cylinder (402), the photoelectric sensor (4021) corresponds to the light-transmitting surface of the cuvette (2), and a height sensor (4013) is provided on one side of the top of the opening (4012).

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