Ultrafine powder cosmetic screening device
By using an electric motor to drive the slide bar and rack to move back and forth, the screen and rotating shaft rotate back and forth, solving the problem of powder accumulation in the existing device and achieving better powder screening effect and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MEIXUE COSMETICS CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-05
AI Technical Summary
Existing ultrafine powder sieving devices for cosmetics have limited sieving efficiency, and powder tends to accumulate on the screen, affecting the sieving effect.
The motor drives the slide bar and rack to move back and forth, which in turn drives the screen and shaft to rotate back and forth, using centrifugal force to screen out the powder and avoid powder accumulation.
It improves the powder screening effect, ensures that the powder is screened out evenly, avoids accumulation, and enhances the efficiency and effectiveness of the powder screening device.
Smart Images

Figure CN224195216U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cosmetic powder sieving technology, and in particular to a cosmetic powder sieving device for ultrafine powders. Background Technology
[0002] Cosmetics are chemical industrial products or fine chemical products applied to any part of the human body through methods such as smearing or spraying to achieve purposes such as cleansing, maintenance, and beautification. They come in a rich variety of types. Whether it's a natural brightening effect for everyday wear or a glamorous look for the stage, cosmetics satisfy people's pursuit of beauty and have become an important tool for enhancing confidence and charm. Cosmetic powder sieving refers to the operation of screening powdered cosmetic raw materials or finished products during the production or use of cosmetics. In the production stage, powder sieving can classify cosmetic powder raw materials, such as talc, kaolin, and titanium dioxide, according to particle size, removing large particles or agglomerates, ensuring the fineness and uniformity of the raw materials, making the product texture more delicate and adherent, and allowing it to evenly cover the skin during application, thus improving the user experience.
[0003] Existing ultrafine powder sieving devices for cosmetics can sieve powder, but some of these devices only rely on the vibration of the screen, resulting in limited sieving effectiveness. Sometimes, powder accumulates on the screen, affecting the sieving process. Utility Model Content
[0004] The purpose of this invention is to address the problems existing in the background technology by proposing an ultrafine powder sieving device for cosmetics.
[0005] The technical solution of this utility model is as follows: A powder sieving device for ultrafine powder cosmetics includes a sieving cylinder, an upper cover on the upper part of the sieving cylinder, a slide rail fixedly connected to the top of the upper cover, a slide bar slidably connected inside the slide rail, a rack fixedly connected to the side of the slide bar, an installation box fixedly connected to the top of the upper cover, the installation box being fixedly connected to the slide rail, a rotating tube rotatably connected to the middle of the installation box, a gear fixedly connected to the outer wall of the rotating tube, the gear meshing with the rack, a screen inside the sieving cylinder, a rotating shaft fixedly connected to the middle of the screen, the rotating shaft engaging with the middle of the rotating tube, a bracket fixedly connected to the top of the upper cover, a motor fixedly mounted in the middle of the bracket, a turntable fixedly mounted on the output shaft of the motor, a moving column fixedly connected to the bottom of the turntable, a moving frame fixedly connected to the side of the slide bar, and the moving column engaging with the moving frame.
[0006] Preferably, a discharge port is fixedly connected to the middle of the powder screening cylinder, and a discharge valve is fixedly installed in the middle of the discharge port.
[0007] Preferably, the surface of the upper cover has an opening, and a feed cover is installed above the opening.
[0008] Preferably, protrusions are fixedly connected to both sides of the top cover, and a groove is provided on the top of the powder sieving cylinder, with the protrusions cooperating with the groove.
[0009] Preferably, a screw is threadedly connected to the middle of the rotating tube, and the screw is threadedly connected to the rotating shaft.
[0010] Preferably, a limiting block is fixedly connected to the outer wall of the rotating shaft, and the limiting block is in contact with the rotating tube.
[0011] Preferably, the rack does not contact the slide rail.
[0012] Compared with the prior art, the present invention has the following beneficial technical effects: by rotating the motor, the slide bar and rack move back and forth in the left and right directions, causing the screen and rotating shaft to rotate back and forth. The powder is screened out under the action of centrifugal force. Compared with the vibration of the screen, the back and forth rotation of the screen can make the sieving effect better. Moreover, because the screen rotates back and forth, the powder cannot stay relative to the screen and cannot accumulate on the screen, thus increasing the sieving effect. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the bottom structure of the turntable of this utility model;
[0015] Figure 3 This is a schematic diagram of the front cross-sectional structure of the upper cover of this utility model;
[0016] Figure 4 for Figure 3 A magnified view of the structure at point A in the middle;
[0017] Figure 5 This is a schematic diagram of the cross-sectional structure of the slide rail of this utility model;
[0018] Figure 6 This is a schematic diagram of the side cross-sectional structure of the mounting box of this utility model.
[0019] Reference numerals in the attached drawings: 1. Sieve cylinder; 101. Discharge port; 102. Discharge valve; 2. Top cover; 201. Protrusion; 202. Groove; 203. Feed cover; 3. Slide rail; 301. Mounting box; 302. Rotating tube; 303. Gear; 304. Rotating shaft; 305. Screw; 306. Screen; 307. Limiting block; 4. Support; 401. Motor; 402. Turntable; 403. Moving column; 404. Moving frame; 405. Slide bar; 406. Rack. Detailed Implementation
[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0021] Example
[0022] like Figure 1-6 As shown, the present invention proposes an ultrafine powder cosmetic sieving device, including a sieving cylinder 1, which is used for sieving powder inside the sieving cylinder 1. The sieving cylinder 1 is placed on a horizontal ground, and a discharge port 101 is fixedly connected to the middle of the sieving cylinder 1. The discharge port 101 is located in the middle and can discharge the sieved powder. A discharge valve 102 is fixedly installed in the middle of the discharge port 101. A collection bucket is placed under the discharge port 101, and the discharge valve 102 is opened to collect the powder.
[0023] The upper part of the sieving cylinder 1 is provided with a top cover 2, which covers the sieving cylinder 1. The surface of the top cover 2 has an opening for putting in the powder to be sifted. A feed cover 203 is installed above the opening. After the powder to be sifted is put in, the feed cover 203 is put on. The two sides of the top cover 2 are fixedly connected with protrusions 201. There are two protrusions 201, which are distributed on the left and right sides. The top of the sieving cylinder 1 is provided with a groove 202. There are two grooves 202, which are distributed on the left and right sides. The protrusions 201 cooperate with the grooves 202. When installing the top cover 2, the protrusions 201 are aligned with the grooves 202 to install the top cover 2. After installation, there will be no relative rotation. The top cover 2 is relatively heavy and will not detach from the sieving cylinder 1 after installation.
[0024] A slide rail 3 is fixedly connected to the top of the top cover 2. The slide rail 3 has one line that runs through the left and right sides of the top cover 2. An opening is provided on the side of the slide rail 3, through which the moving frame 404 passes. A slide bar 405 is slidably connected inside the slide rail 3. The slide bar 405 can slide left and right inside the slide rail 3. The slide rail 3 restricts the slide bar 405 so that the slide bar 405 can only slide left and right and cannot move in other directions. A rack 406 is fixedly connected to the side of the slide bar 405. The rack 406 and the slide bar 405 are a whole and move left and right together. The rack 406 does not contact the slide rail 3 to avoid the slide rail 3 affecting the movement of the rack 406.
[0025] A mounting box 301 is fixedly connected to the top of the top cover 2. The mounting box 301 is fixedly connected to the slide rail 3. The mounting box 301 and the slide rail 3 are an integral unit. A rotating tube 302 is rotatably connected to the middle of the mounting box 301. The rotating tube 302 can rotate in the middle of the mounting box 301. A gear 303 is fixedly connected to the outer wall of the rotating tube 302. The gear 303 and the rotating tube 302 are an integral unit and rotate together. The gear 303 meshes with the rack 406. The rack 406 moves left and right, which can make the gear 303 rotate. From the top, when the rack 406 moves to the left, the gear 303 rotates clockwise and the rotating tube 302 rotates clockwise. When the rack 406 moves to the right, the gear 303 rotates counterclockwise and the rotating tube 302 rotates counterclockwise.
[0026] The powder sieving cylinder 1 is equipped with a screen 306 inside, which can sieve powder. A rotating shaft 304 is fixedly connected to the middle of the screen 306. The screen 306 and the rotating shaft 304 are replaceable, and screens 306 with different hole sizes can be selected. A limiting block 307 is fixedly connected to the outer wall of the rotating shaft 304. The limiting block 307 moves together with the rotating shaft 304 and contacts the rotating tube 302. When the rotating shaft 304 is installed, it can prevent the rotating shaft 304 from being moved excessively. After sieving, larger particles remain inside the screen 306, and smaller particles leave the screen 306 and fall.
[0027] A screw 305 is threadedly connected to the middle of the rotating tube 302. The screw 305 is removable and is threadedly connected to the rotating shaft 304, serving as a fastener. The rotating shaft 304 mates with the middle of the rotating tube 302. When installing the rotating shaft 304, align the hole in the rotating shaft 304 with the hole in the rotating tube 302, and then install the screw 305. The screw 305 passes through the hole. After installing the screw 305, the rotating shaft 304 and the rotating tube 302 can be connected together. At this time, the rotating shaft 304 and the rotating tube 302 will not rotate relative to each other, and the rotating shaft 304 will not fall off. Rotating the rotating tube 302 clockwise will cause the rotating shaft 304 and the screen 306 to rotate clockwise, and rotating the rotating tube 302 counterclockwise will cause the rotating shaft 304 and the screen 306 to rotate counterclockwise. To remove the screen 306 and the rotating shaft 304, simply unscrew the screw 305.
[0028] A bracket 4 is fixedly connected to the top of the upper cover 2. A motor 401 is fixedly installed in the middle of the bracket 4, supporting the motor 401. A turntable 402 is fixedly installed on the output shaft of the motor 401. When the motor 401 rotates, the turntable 402 rotates. A movable column 403 is fixedly connected to the bottom of the turntable 402, and the movable column 403 rotates with the turntable 402. A movable frame 404 is fixedly connected to the side of the slide bar 405. The movable frame 404 and the slide bar 405 are a whole and move left and right together. The movable column 403 and the movable frame 404 are also fixedly connected. The four components work together: the moving column 403 moves, which allows the moving frame 404 to move left and right; the motor 401 rotates continuously in one direction, which also allows the moving frame 404 to move back and forth in the left and right direction; the slide bar 405 and the rack 406 move back and forth in the left and right direction; the moving column 403 moves back and forth relative to the moving frame 404; the gear 303 rotates back and forth; the rotating tube 302 rotates back and forth; the screen 306 and the rotating shaft 304 rotate back and forth; and the powder is screened out under the action of centrifugal force. Because the screen 306 rotates back and forth, the powder cannot accumulate on the screen 306.
[0029] In this embodiment, the powder to be sieved is added to the screen 306. The motor 401 rotates, the turntable 402 rotates, the moving column 403 rotates with the turntable 402, the moving frame 404 moves left and right, the slide bar 405 and the rack 406 move back and forth in the left and right directions, the moving column 403 also moves back and forth relative to the moving frame 404, the gear 303 rotates back and forth, the rotating tube 302 rotates back and forth, the screen 306 and the rotating shaft 304 rotate back and forth, and the powder is sieved out under the action of centrifugal force. Because the screen 306 rotates back and forth, the powder cannot accumulate on the screen 306. After sieving, larger particles remain inside the screen 306, and smaller particles leave the screen 306 and fall. The collection bucket is placed under the discharge port 101, and the discharge valve 102 is opened for collection.
[0030] The above-described specific embodiments are merely preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.
Claims
1. A powder sieving device for ultrafine powder cosmetics, comprising a sieving cylinder (1), characterized in that: The upper part of the sieving cylinder (1) is provided with a top cover (2). A slide rail (3) is fixedly connected to the top of the top cover (2). A slide bar (405) is slidably connected inside the slide rail (3). A rack (406) is fixedly connected to the side of the slide bar (405). An installation box (301) is fixedly connected to the top of the top cover (2). The installation box (301) is fixedly connected to the slide rail (3). A rotating tube (302) is rotatably connected to the middle of the installation box (301). A gear (303) is fixedly connected to the outer wall of the rotating tube (302). The gear (303) meshes with the rack (406). The sieving cylinder ( 1) The interior is provided with a screen (306), and a rotating shaft (304) is fixedly connected to the middle of the screen (306). The rotating shaft (304) cooperates with the middle of the rotating tube (302). A bracket (4) is fixedly connected to the top of the cover (2). A motor (401) is fixedly installed in the middle of the bracket (4). A turntable (402) is fixedly installed on the output shaft of the motor (401). A moving column (403) is fixedly connected to the bottom of the turntable (402). A moving frame (404) is fixedly connected to the side of the slide bar (405). The moving column (403) cooperates with the moving frame (404).
2. The ultrafine powder cosmetic sieving device according to claim 1, characterized in that: The powder screening cylinder (1) is fixedly connected to a discharge port (101) in the middle, and a discharge valve (102) is fixedly installed in the middle of the discharge port (101).
3. The ultrafine powder cosmetic sieving device according to claim 1, characterized in that: The surface of the upper cover (2) is provided with an opening, and a feed cover (203) is installed above the opening.
4. The ultrafine powder cosmetic sieving device according to claim 1, characterized in that: The top cover (2) is fixedly connected to both sides with protrusions (201), and the top of the powder sieving cylinder (1) is provided with a groove (202), and the protrusions (201) cooperate with the groove (202).
5. The ultrafine powder cosmetic sieving device according to claim 1, characterized in that: The rotating tube (302) is threaded with a screw (305) in the middle, and the screw (305) is threaded with the rotating shaft (304).
6. The ultrafine powder cosmetic sieving device according to claim 1, characterized in that: A limiting block (307) is fixedly connected to the outer wall of the rotating shaft (304), and the limiting block (307) is in contact with the rotating tube (302).
7. The ultrafine powder cosmetic sieving device according to claim 1, characterized in that: The rack (406) does not contact the slide rail (3).