Skin care product powder screening device
By combining vibration and stirring, the problems of powder agglomeration and poor discharge were solved, achieving efficient screening and separation of skin care powder and improving the overall performance of the powder screening device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI SHAWYA BIOTECHNOLOGY CORP LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-19
AI Technical Summary
Existing skincare product powder sieving devices are prone to forming powder clumps during the sieving process, and the discharge is not smooth, resulting in low sieving efficiency.
The powder screening process combines vibration and stirring. An eccentric vibration motor drives the bottom and top cylinders to vibrate, while a servo motor drives the arc plate and stirring rod to stir the powder. The discharge is controlled by a solenoid valve to ensure that the powder is loose and separated into different particle sizes.
It effectively prevents powder from clumping, improves sieving efficiency, ensures the fineness of the powder and smooth discharge, and enhances the overall sieving effect.
Smart Images

Figure CN224253467U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of skin care product manufacturing technology, specifically a skin care product powder sieving device. Background Technology
[0002] In the production process of skin care products, powder sieving is a key step to ensure product quality. Powder skin care products (such as makeup powder, loose powder, etc.) need to ensure that the powder is fine and free of lumps in order to bring a good experience to users. This requires the powder sieving device to accurately screen out particles that meet the size requirements and remove particles that are too large or too small as well as lumps.
[0003] Currently, existing powder screening devices have significant shortcomings. They often rely solely on vibration for screening, have a relatively simple structure, and are not easy to break up clumps of powder. The discharge is not smooth enough, and there is a lack of auxiliary stirring mechanisms to assist in screening. As a result, they cannot effectively prevent powder from agglomerating and facilitate discharge. Overall, the efficiency of powder screening needs to be improved.
[0004] In view of this, we propose a skin care product powder sieving device. Utility Model Content
[0005] The purpose of this invention is to provide a skin care product powder sieving device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A skincare product powder sieving device includes a frame. A stud is threaded onto the top of the frame, and a nut is threaded onto the bottom of the stud. The top of the stud is externally fixed to the bottom of a vibrating spring. A fixing post is fixedly installed inside the top of the vibrating spring. The top of the fixing post is fixedly installed inside a circular plate. A bracket is fixedly installed at the center of the bottom of the circular plate. An eccentric vibrating motor is fixedly installed externally on the bracket. A powder sieving assembly is provided on the circular plate, and the powder sieving assembly includes:
[0008] The bottom cylinder is fixedly installed on the top of the circular plate, the top cylinder is fixedly installed on the top of the bottom cylinder, the top cover is fixedly installed on the top of the top cylinder, the feed hopper is fixedly installed inside the arc-shaped side wall of the top cover, and the screen plate is fixedly installed inside the bottom end of the top cylinder.
[0009] A servo motor is fixedly installed at the center of the top of the top cover. The bottom output end of the servo motor is fixedly installed at the top of a rotating shaft. The rotating shaft is rotatably installed inside the center of the top of the top of the top cover through bearing components. A first arc-shaped plate and a second arc-shaped plate are fixedly installed on the rotating shaft from top to bottom. The bottom of the first arc-shaped plate slides against the top of the sieve plate. A first stirring rod is fixedly installed on the top of the first arc-shaped plate. The bottom of the second arc-shaped plate slides against the upper surface of the bottom end of the bottom cylinder. A second stirring rod is fixedly installed on the top of the second arc-shaped plate.
[0010] The coarse material discharge cylinder is fixedly installed on the arc-shaped side wall of the top cylinder, and the fine material discharge cylinder is fixedly installed on the arc-shaped side wall of the bottom cylinder. Both the coarse material discharge cylinder and the fine material discharge cylinder are equipped with solenoid valves.
[0011] In a further embodiment, multiple sets of studs, nuts, vibration springs, and fixing posts are provided, and the multiple sets of studs, nuts, vibration springs, and fixing posts are arranged in an equally spaced circular array with the center of the circular cross-section of the circular plate as the array center, making the vibration of the device more stable.
[0012] In a further embodiment, the circular cross-sections of the circular plate, bottom cylinder, top cylinder, top cover, and rotating shaft are coaxial.
[0013] In a further embodiment, the first arc-shaped plate is provided in multiple sets, and the first stirring rod on each set of the first arc-shaped plate is provided in multiple sets; the second arc-shaped plate is provided in multiple sets, and the second stirring rod on each set of the second arc-shaped plate is provided in multiple sets; and the outer diameter of the first stirring rod is larger than the outer diameter of the second stirring rod, thereby applying different stirring intensities to the powder to be screened.
[0014] In a further embodiment, the coarse material discharge cylinder and the fine material discharge cylinder are parallel to each other, and their horizontal center lines are tangent to the arc-shaped outer walls of the top cylinder and the bottom cylinder, respectively, thereby improving material discharge.
[0015] In a further embodiment, a fixing component is provided on the outside of the frame. The fixing component includes a ring frame. The ring frame is fixedly installed on the outside of the frame. A threaded block is fixedly installed at the bottom of the ring frame. A threaded rod is threadedly installed inside the threaded block. A locking block is fixedly installed at the bottom of the circular plate. A through slot is opened on the locking block. The slot is located directly above the threaded rod. A support plate is fixedly installed on the outer wall of the top end of the threaded rod.
[0016] In a further embodiment, multiple sets of the threaded block, threaded rod, locking block, locking groove, and support plate are provided to support the circular plate and its upper structure.
[0017] Compared with the prior art, this utility model provides a skin care product powder sieving device, which has the following beneficial effects:
[0018] 1. This skincare product powder sieving device, in order to better sieve powder, is equipped with a powder sieving assembly. First, the frame, stud, nut, vibration spring, fixed column, circular plate, bracket, and eccentric vibration motor work together to vibrate the bottom cylinder and top cylinder. Skincare product powder is fed into the top cylinder through the feed hopper. Simultaneously, the servo motor on the top cover is started, causing the rotating shaft to drive the first arc plate, the first stirring rod, the second arc plate, and the second stirring rod to rotate synchronously. This stirs the powder before and after sieving. The powder with smaller particle size is vibrated and stirred, and falls into the bottom cylinder through the sieve plate. When the solenoid valve is activated, the coarse material is discharged through the coarse material discharge cylinder, and the fine material is discharged through the fine material discharge cylinder, thus avoiding powder agglomeration, facilitating discharge, and thus enabling better powder sieving.
[0019] 2. To make the skincare product powder sieving device more practical, it is equipped with a fixing component. When not sieving, turning the threaded rod on the ring frame and the threaded block causes the top of the threaded rod to slide into the slot inside the locking block. At the same time, the top of the support plate is in contact with the bottom of the locking block, so that the support plate can support the circular plate and its upper structure, avoiding stress on the vibration spring. When sieving is needed, the threaded rod is rotated in the opposite direction to move the threaded rod away from the locking block, thus making the device more practical. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;
[0022] Figure 3 This utility model Figure 2 Enlarged structural diagram of region A in the middle;
[0023] Figure 4 This is a cross-sectional view of part of the structure of this utility model;
[0024] Figure 5 This is an exploded view of part of the structure of this utility model.
[0025] Explanation of icon numbers:
[0026] 1. Frame; 2. Stud; 3. Nut; 4. Vibration spring; 5. Fixed column; 6. Circular plate; 7. Support; 8. Eccentric vibration motor;
[0027] 9. Sieving assembly; 91. Bottom cylinder; 92. Top cylinder; 93. Top cover; 94. Feed hopper; 95. Sieve plate; 96. Servo motor; 97. Rotating shaft; 98. First arc plate; 99. First stirring rod; 910. Second arc plate; 911. Second stirring rod; 912. Coarse material discharge cylinder; 913. Fine material discharge cylinder; 914. Solenoid valve;
[0028] 10. Fixing component; 101. Ring frame; 102. Threaded block; 103. Threaded rod; 104. Locking block; 105. Locking groove; 106. Support plate. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.
[0031] Please see Figures 1-5 This utility model provides a technical solution:
[0032] A skincare product powder sieving device includes a frame 1. A stud 2 is threadedly installed on the top of the frame 1, and a nut 3 is threadedly fitted on the bottom of the stud 2. The top of the stud 2 is externally fixedly installed inside the bottom of a vibration spring 4. The bottom of a fixing column 5 is fixedly installed inside the top of the vibration spring 4. The top of the fixing column 5 is fixedly installed inside a circular plate 6. A bracket 7 is fixedly installed at the bottom center of the circular plate 6. An eccentric vibration motor 8 is fixedly installed on the outside of the bracket 7. In addition, multiple sets of studs 2, nuts 3, vibration springs 4, and fixing columns 5 are arranged, and the multiple sets of studs 2, nuts 3, vibration springs 4, and fixing columns 5 are arranged in an equally spaced circular array with the center of the circular cross-section of the circular plate 6 as the array center, so that the vibration of the device is more stable.
[0033] In one embodiment of this utility model, a powder screening assembly 9 is provided on the circular plate 6. The powder screening assembly 9 includes a bottom cylinder 91, a top cylinder 92 is fixedly installed on the top of the bottom cylinder 91, a top cover 93 is fixedly installed on the top of the top cylinder 92, a feed hopper 94 is fixedly installed inside the arc-shaped side wall of the top cover 93, a screen plate 95 is fixedly installed inside the bottom end of the top cylinder 92, and a servo motor 96 is fixedly installed at the center of the top of the top cover 93. The bottom end of the servo motor 96 outputs... A rotating shaft 97 is fixedly installed at the top of the top cover 93 via bearing components. The circular plates 6, bottom cylinder 91, top cylinder 92, top cover 93, and rotating shaft 97 are all coaxial. A first arc-shaped plate 98 and a second arc-shaped plate 910 are fixedly installed on the rotating shaft 97 from top to bottom. The bottom of the first arc-shaped plate 98 slides against the top of the sieve plate 95. A first stirring rod 99 is fixedly installed on the top of the first arc-shaped plate 98. 10. The bottom of the bottom plate 91 slides and fits against the upper surface of the bottom end of the bottom cylinder 91. The top of the second arc plate 910 is fixedly installed with a second stirring rod 911. In addition, there are four sets of first arc plates 98, and multiple sets of first stirring rods 99 are provided on each set of first arc plates 98. There are three sets of second arc plates 910, and multiple sets of second stirring rods 911 are provided on each set of second arc plates 910. The outer diameter of the first stirring rod 99 is larger than the outer diameter of the second stirring rod 911, so that before screening... Different mixing intensities are applied to the powder. A coarse material discharge cylinder 912 is fixedly installed on the arc-shaped side wall of the top cylinder 92, and a fine material discharge cylinder 913 is fixedly installed on the arc-shaped side wall of the bottom cylinder 91. Solenoid valves 914 are provided on both the coarse material discharge cylinder 912 and the fine material discharge cylinder 913. In addition, the coarse material discharge cylinder 912 and the fine material discharge cylinder 913 are parallel, and their horizontal center lines are tangent to the arc-shaped outer walls of the top cylinder 92 and the bottom cylinder 91, respectively, so as to better discharge the material.
[0034] In this embodiment, when the skincare product powder sieving device is in operation, the powder sieving component 9 is activated. First, multiple sets of studs 2, nuts 3, vibration springs 4, and fixing columns 5 arranged in a circumferential array securely connect the frame 1 and the circular plate 6 into an integral structure. This array design ensures the stability of the device during vibration. Then, the eccentric vibration motor 8 on the support 7 is activated, and the eccentric rotational force it generates drives the bottom cylinder 91 and the top cylinder 92 to synchronously generate high-frequency vibration. At this time, a batch of skincare product powder is fed into the top cylinder 92 through the feed hopper 94. Immediately afterwards, the servo motor 96 on the top cover 93 is activated, and its output drives the rotating shaft 97 to rotate, thereby driving the four sets of first arc-shaped plates 98, multiple sets of first stirring rods 99, and three sets of second arc-shaped plates 910 and multiple sets of second stirring rods 911 fixed on the rotating shaft 97 to rotate synchronously. The outer diameter of the first stirring rod 99 is larger than that of the second stirring rod 911, which can apply different stirring intensities to the powder before and after sieving: the first arc plate 98 and the first stirring rod 99 stir the powder in the top cylinder 92, breaking the powder's cohesive state. The powder with smaller particle size falls into the bottom cylinder 91 through the sieve plate 95 under the dual action of vibration and stirring; the second arc plate 910 and the second stirring rod 911 continue to stir the sieved powder in the bottom cylinder 91 to ensure that the powder is loose. When the solenoid valve 914 is activated, the coarse material discharge cylinder 912 and the fine material discharge cylinder 913 are opened. Due to the design of the two being tangent to the outer walls of the top cylinder 92 and the bottom cylinder 91, the coarse material is discharged from the coarse material discharge cylinder 912 and the fine material is discharged from the fine material discharge cylinder 913 to the subsequent collection equipment. The arc structure of the first arc plate 98 and the second arc plate 910 further assists in the discharge.
[0035] In one embodiment of this utility model, a fixing component 10 is provided on the outside of the frame 1. The fixing component 10 includes a ring frame 101. The ring frame 101 is fixedly installed on the outside of the frame 1. A threaded block 102 is fixedly installed at the bottom of the ring frame 101. A threaded rod 103 is threadedly installed inside the threaded block 102. A locking block 104 is fixedly installed at the bottom of the circular plate 6. A through slot 105 is opened on the locking block 104. The slot 105 is located directly above the threaded rod 103. A support plate 106 is fixedly installed on the outer wall of the top end of the threaded rod 103. In addition, two sets of threaded blocks 102, threaded rods 103, locking blocks 104, slots 105 and support plates 106 are provided. The two sets of threaded blocks 102, threaded rods 103, locking blocks 104, slots 105 and support plates 106 are mirror images of each other at both ends of the frame 1, which can support the circular plate 6 and its upper structure.
[0036] In this embodiment, when not sieving, the threaded rod 103 inside the threaded block 102 at the bottom of the ring frame 101 is turned so that its top end slides into the inside of the slot 104 along the inner wall of the slot 105. At the same time, the top of the support plate 106 is tightly attached to the bottom of the slot 104. The two sets of mirror-arranged structures together provide stable support for the circular plate 6 and the sieving assembly 9 above it, releasing the vibration spring 4 from the stressed state and avoiding elastic decay caused by long-term stress. When sieving is required, the threaded rod 103 is rotated in the opposite direction so that its top end is completely disengaged from the slot 105, releasing the support for the circular plate 6. The vibration spring 4 returns to the working stressed state, and the device can start the vibrating sieving process normally, thereby improving its practicality.
[0037] All electrical components mentioned in this application are electrically connected to the controller and 220V AC mains power. The controller is a conventional and known device that can control the eccentric vibration motor 8, the servo motor 96, and the solenoid valve 914. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding that are mature in the prior art. The machinery, parts, and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, and will not be described in detail here.
[0038] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A skin care product powder sieving device, comprising a frame (1), wherein a stud (2) is threadedly installed on the top of the frame (1), and a nut (3) is threadedly fitted on the bottom of the stud (2); the top of the stud (2) is externally fixedly installed inside the bottom of a vibration spring (4); the bottom of a fixing column (5) is fixedly installed inside the top of the vibration spring (4); the top of the fixing column (5) is fixedly installed inside a circular plate (6); a bracket (7) is fixedly installed at the center of the bottom of the circular plate (6); and an eccentric vibration motor (8) is fixedly installed on the outside of the bracket (7), characterized in that: A powder sieving assembly (9) is provided on the circular plate (6), and the powder sieving assembly (9) includes: Bottom cylinder (91), the top of the circular plate (6) is fixedly installed with bottom cylinder (91), the top of the bottom cylinder (91) is fixedly installed with top cylinder (92), the top of the top cylinder (92) is fixedly installed with top cover (93), the inside of the arc-shaped side wall of the top cover (93) is fixedly installed with feed hopper (94), and the bottom end of the top cylinder (92) is fixedly installed with screen plate (95); A servo motor (96) is fixedly installed at the top center of the top cover (93). The bottom output end of the servo motor (96) is fixedly installed at the top of the rotating shaft (97). The rotating shaft (97) is rotatably installed inside the top center of the top cover (93) through bearing components. The rotating shaft (97) is fixedly installed with a first arc plate (98) and a second arc plate (910) from top to bottom. The bottom of the first arc plate (98) slides against the top of the sieve plate (95). The top of the first arc plate (98) is fixedly installed with a first stirring rod (99). The bottom of the second arc plate (910) slides against the upper surface of the bottom end of the bottom cylinder (91). The top of the second arc plate (910) is fixedly installed with a second stirring rod (911). A coarse material discharge cylinder (912) is fixedly installed on the arc-shaped side wall of the top cylinder (92), and a fine material discharge cylinder (913) is fixedly installed on the arc-shaped side wall of the bottom cylinder (91). Both the coarse material discharge cylinder (912) and the fine material discharge cylinder (913) are equipped with solenoid valves (914).
2. The skincare product powder sieving device according to claim 1, characterized in that: The studs (2), nuts (3), vibration springs (4) and fixing posts (5) are arranged in multiple sets, and the studs (2), nuts (3), vibration springs (4) and fixing posts (5) are arranged in a circular array with equal spacing around the center of the circular cross section of the circular plate (6).
3. The skincare product powder sieving device according to claim 1, characterized in that: The circular cross-sections of the circular plate (6), bottom cylinder (91), top cylinder (92), top cover (93), and rotating shaft (97) are coaxial.
4. The skincare product powder sieving device according to claim 1, characterized in that: The first arc plate (98) is provided in multiple sets, and the first stirring rod (99) on a single set of the first arc plate (98) is provided in multiple sets. The second arc plate (910) is provided in multiple sets, and the second stirring rod (911) on a single set of the second arc plate (910) is provided in multiple sets. The outer diameter of the first stirring rod (99) is larger than the outer diameter of the second stirring rod (911).
5. The skincare product powder sieving device according to claim 1, characterized in that: The coarse material discharge cylinder (912) and the fine material discharge cylinder (913) are parallel to each other, and their horizontal center lines are tangent to the arc-shaped outer walls of the top cylinder (92) and the bottom cylinder (91), respectively.
6. The skin care product powder sieving device according to claim 1, characterized in that: The frame (1) is provided with a fixing component (10) on the outside. The fixing component (10) includes a ring frame (101). The ring frame (101) is fixedly installed on the outside of the frame (1). A threaded block (102) is fixedly installed at the bottom of the ring frame (101). A threaded rod (103) is threadedly installed inside the threaded block (102). A locking block (104) is fixedly installed at the bottom of the circular plate (6). A through slot (105) is opened on the locking block (104). The slot (105) is located directly above the threaded rod (103). A support plate (106) is fixedly installed on the outer wall of the top end of the threaded rod (103).
7. A skincare product powder sieving device according to claim 6, characterized in that: The threaded block (102), threaded rod (103), locking block (104), locking groove (105) and support plate (106) are provided in multiple sets.