A high efficiency powder sieving device
By designing a support frame and power components, and utilizing the high-frequency vibration of elastic balls to transmit composite impact force, the problem of sieve hole blockage caused by powder absorption of moisture, static electricity, or irregular particle shape, as well as the significant reduction in sieving efficiency when the particle shape is irregular, is solved, thus achieving a highly efficient powder sieving effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU LIHUA BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-23
AI Technical Summary
When powder absorbs moisture, has static electricity, or has an irregular particle shape, the sieving efficiency is significantly reduced, especially when the sieve holes are blocked and the particles agglomerate, which hinders the sieving process.
The design employs a support frame and power components. The motor drives the eccentric wheel to generate high-frequency vibrations in the elastic ball, which are then transmitted to the filter screen to achieve a combined vertical and horizontal impact force on the powder particles, reducing friction and dispersing agglomeration.
It significantly improves the flowability and sieving efficiency of powder, enabling rapid, continuous, and automated sieving of powder, and solving the problem of low powder sieving efficiency.
Smart Images

Figure CN224389282U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sieving device technology, specifically a high-efficiency powder sieving device. Background Technology
[0002] Powder sieving is an operation that uses a sieve to classify powder particles. A motor or vibrator causes the sieve to vibrate at high frequency, which makes the powder pass through the sieve holes quickly. It is widely used in chemical, pharmaceutical, food, metallurgical and other industries to separate powders of different particle sizes, so as to ensure product uniformity or meet process requirements.
[0003] When powder absorbs moisture, has static electricity, or has an irregular shape, the sieving efficiency will be significantly reduced. In particular, static electricity will cause powder particles to aggregate due to the attraction of charges, and even adsorb onto the surface of the screen, causing the screen holes to be blocked. Powder with irregular shape will accumulate on the screen and hinder the sieving process because the particles are easy to interlock and hook together. To address this, we propose a high-efficiency powder sieving device. Utility Model Content
[0004] The purpose of this utility model is to provide a high-efficiency powder sieving device to solve the problem mentioned in the background art that the sieving efficiency will be significantly reduced when the powder absorbs moisture, has static electricity, or has an irregular particle shape. To achieve the above objective, this utility model provides the following technical solution: a high-efficiency powder sieving device, including a support frame, wherein the support frame is L-shaped;
[0005] A filter assembly includes a limiting groove located on the top of a support frame. A connecting rod 1 is slidably connected inside the limiting groove. Several connecting rods 2 are fixedly connected to the side surface of the connecting rod 1, and the several connecting rods 2 are arranged in a circular array. The connecting rods 2 are L-shaped. Elastic balls are fixedly connected to the bottom of the connecting rods 2 and 1 respectively. A rotating frame 1 is fixedly connected to the top of the connecting rod 1. A rotating rod 1 is rotatably connected inside the rotating frame 1 via a bearing.
[0006] The power assembly includes a motor, which is mounted on the top of a connecting rod. An eccentric wheel is fixedly connected to the transmission end of the motor. When filtering powder, the operator can start the motor, causing the elastic ball to vibrate at a high frequency. This vibration is transmitted to the filter screen in a uniform and stable manner, subjecting the powder particles to a combined vertical and horizontal impact force. This effectively reduces the friction between particles and strongly disperses agglomeration, allowing the previously tightly packed powder particles to regain their ability to disperse freely. Consequently, the flowability of the powder on the screen is significantly enhanced, enabling it to pass through the screen openings more smoothly and quickly, greatly improving filtration efficiency and ultimately achieving an ideal high-efficiency filtration effect.
[0007] More preferably, a support plate is fixedly connected to the top of the support frame, a mounting frame is fixedly connected to the top of the support plate, and a power assembly is provided on the top of the mounting frame.
[0008] More preferably, the power assembly further includes a second rotating frame, which is fixedly connected to the side of the eccentric wheel away from the first motor, and a second rotating rod is rotatably connected inside the second rotating frame via a bearing.
[0009] More preferably, the second rotating rod is fixedly connected to the side surface of the first rotating rod with a connecting plate, and the bottom of the first support plate is provided with a support assembly.
[0010] More preferably, the support assembly includes a support base, which is disposed at the bottom of the first support plate, and a mounting ring is fixedly connected to the top of the support base. A second support plate is fixedly connected to the top of the mounting ring, and a support rod is fixedly connected to the top of the second support plate.
[0011] More preferably, the top of the support rod is fixedly connected to the bottom of the support plate, and the top of the mounting ring is fixedly connected with a plurality of springs arranged in a circular array, and the top of the springs is provided with a screening component.
[0012] More preferably, the screening assembly includes a connecting cylinder, which is fixedly connected to the top of the spring. A protective ring is fixedly connected to the top of the connecting cylinder, and a filter screen is fixedly connected inside the protective ring.
[0013] More preferably, the bottom of the connecting cylinder is provided with a discharge port, the bottom of the discharge port is fixedly connected with a guide frame, and the bottom of the connecting cylinder is fixedly connected with a vibration motor, which greatly improves the efficiency of powder sieving and realizes rapid and continuous automated sieving of powder.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] In this invention, when filtering powder, the operator can start motor one, which causes the elastic ball to vibrate at high frequency. This allows the elastic ball to transmit the high-frequency vibration to the filter screen in a uniform and stable manner. The powder particles are subjected to a combined impact force in both vertical and horizontal directions, which not only effectively reduces the friction between particles but also strongly disperses agglomeration. This allows the originally tightly packed powder particles to regain their ability to disperse freely, thus significantly enhancing the flowability of the powder on the screen. The powder can then pass through the screen holes more smoothly and quickly, greatly improving the sieving efficiency and ultimately achieving the ideal high-efficiency filtration effect.
[0016] In this invention, when using the device, the operator can start the second vibration motor. Through the elastic force of the spring, the second vibration motor can drive the connecting cylinder and the filter screen to vibrate. Then, the operator can pour the powder to be screened into the inside of the protective ring, so that the filter screen can screen the powder. The screened powder will then fall into the inside of the connecting cylinder and be discharged to the outside through the discharge port and the guide frame, thereby greatly improving the efficiency of powder screening and realizing fast and continuous automated screening of powder. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This utility model Figure 1 Schematic diagram of the structure at point a;
[0019] Figure 3 This is a three-dimensional structural diagram of the power component of this utility model;
[0020] Figure 4 This is a schematic cross-sectional view of the present invention.
[0021] Figure 5 This is a schematic cross-sectional view of the support component of this utility model;
[0022] Figure 6 This is a schematic cross-sectional view of the screening component of this utility model.
[0023] In the diagram: 1. Support frame; 2. Filter assembly; 201. Limiting groove; 202. Connecting rod one; 203. Connecting rod two; 204. Elastic ball; 205. Rotating frame one; 206. Rotating rod one; 3. Support plate one; 4. Mounting frame one; 5. Power assembly; 501. Motor one; 502. Eccentric wheel; 503. Rotating frame two; 504. Rotating rod two; 505. Connecting plate; 6. Support assembly; 601. Support base; 602. Mounting ring; 603. Support plate two; 604. Support rod; 605. Spring; 7. Screening assembly; 701. Connecting cylinder; 702. Protective ring; 703. Filter screen; 704. Discharge port; 705. Guide frame; 706. Vibration motor two. Detailed Implementation
[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1-6 This utility model provides a technical solution: a powder high-efficiency sieving device, including a support frame 1, the support frame 1 being L-shaped;
[0026] The filter assembly 2 includes a limiting groove 201, which is formed on the top of the support frame 1. A connecting rod 202 is slidably connected inside the limiting groove 201. Several connecting rods 203 are fixedly connected to the side surface of the connecting rod 202 and are arranged in a ring array. The connecting rods 203 are L-shaped. Elastic balls 204 are fixedly connected to the bottom of the connecting rods 203 and the connecting rod 202 respectively. A rotating frame 205 is fixedly connected to the top of the connecting rod 202. A rotating rod 206 is rotatably connected inside the rotating frame 205 through a bearing.
[0027] The power assembly 5 includes a motor 501, which is located on the top of the connecting rod 202. An eccentric wheel 502 is fixedly connected to the transmission end of the motor 501.
[0028] In this embodiment, as Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, a support plate 3 is fixedly connected to the top of the support frame 1, and a mounting frame 4 is fixedly connected to the top of the support plate 3. A power assembly 5 is installed on the top of the mounting frame 4. The power assembly 5 also includes a rotating frame 503, which is fixedly connected to the side of the eccentric wheel 502 away from the motor 501. A rotating rod 504 is rotatably connected inside the rotating frame 503 via a bearing. A connecting plate 505 is fixedly connected to the side surface of the rotating rod 504 and the rotating rod 206. A support assembly 6 is installed at the bottom of the support plate 3. The support assembly 6 includes a support base 601, which is located at the bottom of the support plate 3. A mounting ring 602 is fixedly connected to the top of the support base 601. A support plate 603 is fixedly connected to the top of ring 602, and a support rod 604 is fixedly connected to the top of support plate 603. The operator can start motor 501, which drives eccentric wheel 502 to rotate. Then, through the sliding connection between limit groove 201 and connecting rod 202, support frame 1 can limit and guide connecting rod 202. Eccentric wheel 502 can drive connecting plate 505 to perform high-frequency reciprocating motion through rotating frame 203 and rotating rod 204. Connecting plate 505 can drive connecting rod 202, connecting rod 203, and elastic ball 204 to perform high-frequency reciprocating motion through rotating frame 205 and rotating rod 206.
[0029] In this embodiment, as Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, the top of the support rod 604 is fixedly connected to the bottom of the support plate 3. Several springs 605 are fixedly connected to the top of the mounting ring 602, and these springs 605 are arranged in a circular array. A screening assembly 7 is provided on the top of each spring 605. The screening assembly 7 includes a connecting cylinder 701, which is fixedly connected to the top of the springs 605. A protective ring 702 is fixedly connected to the top of the connecting cylinder 701, and a filter screen 703 is fixedly connected inside the protective ring 702. A discharge port 704 is provided at the bottom of the connecting cylinder 701, and a guide frame 70 is fixedly connected to the bottom of the discharge port 704. 5. A second vibration motor 706 is fixedly connected to the bottom of the connecting cylinder 701. When using this device, the operator can first start the second vibration motor 706. Through the elastic force of the spring 605, the second vibration motor 706 can drive the connecting cylinder 701 and the filter screen 703 to vibrate. Then, the operator can pour the powder to be screened into the protective ring 702 so that the filter screen 703 can screen the powder. Then, the screened powder will fall into the connecting cylinder 701 and then be discharged to the outside through the discharge port 704 and the guide frame 705.
[0030] The usage and advantages of this utility model: The working process of this high-efficiency powder sieving device is as follows:
[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, when using this device, the operator can first start the second vibration motor 706. Through the elastic force of the spring 605, the second vibration motor 706 can drive the connecting cylinder 701 and the filter screen 703 to vibrate. Next, the operator can pour the powder to be sieved into the protective ring 702, allowing the filter screen 703 to sieve the powder. The sieved powder will then fall into the connecting cylinder 701 and be discharged to the outside through the discharge port 704 and the guide frame 705. Then, the operator can start the first motor 501, which will drive the eccentric wheel 502 to rotate. The powder will then pass through the limiting groove 201 and the connecting rod... The sliding connection between 202 allows the support frame 1 to limit and guide the connecting rod 202, enabling the eccentric wheel 502 to drive the connecting plate 505 to perform high-frequency reciprocating motion through the rotating frame 503 and the rotating rod 504. The connecting plate 505, through the rotating frame 205 and the rotating rod 206, drives the connecting rod 202, the connecting rod 203, and the elastic ball 204 to perform high-frequency reciprocating motion, allowing the elastic ball 204 to generate high-frequency vibration. This high-frequency vibration is transmitted to the filter screen 703, subjecting the powder particles to vertical or horizontal impact forces, reducing inter-particle friction and agglomeration, thereby accelerating the speed at which the powder passes through the screen holes.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A high-efficiency powder sieving device, characterized in that, Includes a support frame (1), the support frame (1) being L-shaped; The filter assembly (2) includes a limiting groove (201) which is opened on the top of the support frame (1). A connecting rod 1 (202) is slidably connected inside the limiting groove (201). Several connecting rods 2 (203) are fixedly connected to the side surface of the connecting rod 1 (202) and the several connecting rods 2 (203) are arranged in a ring array. The connecting rods 2 (203) are L-shaped. Elastic balls (204) are fixedly connected to the bottom of the connecting rods 2 (203) and the connecting rod 1 (202) respectively. A rotating frame 1 (205) is fixedly connected to the top of the connecting rod 1 (202). A rotating rod 1 (206) is rotatably connected inside the rotating frame 1 (205) through a bearing. The power assembly (5) includes a motor (501), which is located on the top of the connecting rod (202). An eccentric wheel (502) is fixedly connected to the transmission end of the motor (501) on one side.
2. The powder high-efficiency sieving device according to claim 1, characterized in that: The top of the support frame (1) is fixedly connected to a support plate (3), the top of the support plate (3) is fixedly connected to a mounting frame (4), and the top of the mounting frame (4) is provided with a power assembly (5).
3. The powder high-efficiency sieving device according to claim 2, characterized in that: The power assembly (5) also includes a second rotating frame (503), which is fixedly connected to the side of the eccentric wheel (502) away from the motor (501). The rotating frame (503) is rotatably connected to a second rotating rod (504) through a bearing inside.
4. The powder high-efficiency sieving device according to claim 3, characterized in that: The rotating rod 2 (504) is fixedly connected to the side surface of the rotating rod 1 (206) by a connecting plate (505), and a support component (6) is provided at the bottom of the support plate 1 (3).
5. The powder high-efficiency sieving device according to claim 4, characterized in that: The support assembly (6) includes a support base (601), which is located at the bottom of the first support plate (3). A mounting ring (602) is fixedly connected to the top of the support base (601), and a second support plate (603) is fixedly connected to the top of the mounting ring (602). A support rod (604) is fixedly connected to the top of the second support plate (603).
6. The powder high-efficiency sieving device according to claim 5, characterized in that: The top of the support rod (604) is fixedly connected to the bottom of the support plate (3). The top of the mounting ring (602) is fixedly connected to a number of springs (605) and the number of springs (605) are arranged in a ring array. The top of the springs (605) is provided with a screening component (7).
7. The powder high-efficiency sieving device according to claim 6, characterized in that: The screening assembly (7) includes a connecting cylinder (701), which is fixedly connected to the top of the spring (605). A protective ring (702) is fixedly connected to the top of the connecting cylinder (701), and a filter screen (703) is fixedly connected inside the protective ring (702).
8. The powder high-efficiency sieving device according to claim 7, characterized in that: The bottom of the connecting cylinder (701) is provided with a discharge port (704), the bottom of the discharge port (704) is fixedly connected with a guide frame (705), and the bottom of the connecting cylinder (701) is fixedly connected with a vibration motor (706).