Powder meter for a feeder
By combining a rotary valve plate, a stirring frame, and a screw conveyor system, the dynamic adjustment problem of the powder metering device is solved, enabling accurate metering and stable conveying of powder materials, adapting to flow changes in the production process, and improving metering accuracy and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI YUNKE MACHINERY
- Filing Date
- 2025-09-02
- Publication Date
- 2026-07-24
AI Technical Summary
Existing powder metering devices lack dynamic adjustment capabilities and cannot adapt to changes in flow rate and formula. This leads to unstable feeding of powder materials with poor flowability, easy moisture absorption, or extremely fine particle size, resulting in pulsation, flow interruption, or material surge, and thus inaccurate feeding.
The system employs a controller-controlled rotary valve plate, a motor-driven mixing rack, and a screw conveyor system to achieve intermittent quantitative feeding, uniform mixing, and continuous conveying of materials. Combined with scrapers and cleaning brushes to remove accumulated materials, it ensures metering accuracy and stability.
It achieves precise metering of powdered materials, prevents bridging and poor flow, improves the integrity of the output and the stability of metering, and adapts to changes in flow requirements during the production process.
Smart Images
Figure CN224547219U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of feeder technology, and in particular to a powder metering device for a feeder. Background Technology
[0002] In modern industrial production, feeders, as key equipment in material supply systems, are widely used in chemical, pharmaceutical, food, and new energy materials industries. Especially in processes involving the proportioning, mixing, reaction, or packaging of powder materials, the requirements for feeding accuracy and stability are extremely high. As the core component of the feeder, the powder metering device is mainly used to achieve precise control and quantitative supply of powder materials. The powder metering device involved in this utility model is a device that integrates feeding control, storage, stirring, and conveying functions. Through the coordinated work of mechanical and electrical control systems, it realizes controllable feeding and process monitoring of powder materials, and is suitable for automated production lines with high requirements for continuity, repeatability, and cleanliness.
[0003] However, most existing powder metering devices adopt a fixed volume or gravity direct discharge structure. Their feeding process usually relies on a preset material chamber volume or simple valve opening and closing control, lacking the ability to dynamically adjust the feeding process. They cannot make real-time adjustments according to the actual flow requirements or formula changes during production. Due to the relatively coarse control method, especially when dealing with powders with poor flowability, easy moisture absorption, or extremely fine particle size, the material feeding speed is unstable, and pulsation, flow interruption, or material surge is likely to occur, resulting in a deviation between the actual feeding amount and the set value each time.
[0004] Therefore, it is necessary to design a powder metering device for a feeder to solve the above-mentioned technical problems. Utility Model Content
[0005] In order to overcome the shortcomings of existing powder metering devices, which are mostly fixed volume or gravity type, rely on preset cavity or valve control, have poor adjustment ability, are difficult to adapt to changes in flow rate and formula, and are prone to pulsation, flow interruption and material surge for powders with poor flowability, easy moisture absorption or ultrafine powder, resulting in inaccurate feeding, this utility model provides a powder metering device for a feeder.
[0006] The technical solution is as follows: A powder metering device for a feeder includes a storage bin, a controller, support legs, a feed hopper, a first motor, a rotary valve plate, a metering display screen, a conveying bin, a discharge pipe, and a control valve. The controller is installed on the outer left side of the storage bin. Support legs are installed on the front and rear sides of the bottom of the storage bin, and anti-vibration pads are provided at the bottom of the support legs. The top of the storage bin is connected to and communicates with the feed hopper. The first motor is fixedly connected to the front side of the feed hopper. The rotary valve plate is rotatably connected inside the feed hopper. The output shaft of the first motor passes through the feed hopper and is connected to the rotary valve plate. A metering display screen is installed on the right side of the rotary valve plate. A discharge port is opened on the left side of the rotary valve plate. The bottom right side of the storage bin is connected to and communicates with the conveying bin. The bottom right side of the conveying bin is connected to and communicates with the discharge pipe. A control valve is installed on the discharge pipe. The controller is electrically connected to the first motor and the metering display screen respectively.
[0007] Preferably, the device also includes a second motor, a connecting rod, a first bevel gear, and a screw conveyor. The second motor is fixedly connected to the left side of the bottom of the storage bin. The output shaft of the second motor extends to the right and is connected to the connecting rod. The first bevel gear is fixedly connected to the connecting rod. The connecting rod extends to the right, passes through the conveyor bin, and is connected to the screw conveyor. The controller is electrically connected to the second motor.
[0008] Preferably, the storage tank also includes a rotating rod, a stirring frame, a second bevel gear, and scrapers. A vertically arranged rotating rod is rotatably connected inside the storage tank. The stirring frame is installed on the rotating rod. The bottom end of the rotating rod extends downward through the storage tank and is connected to the second bevel gear. The first bevel gear meshes with the second bevel gear. Two scrapers are symmetrically installed on the outside of the stirring frame. The scrapers are in rotatable contact with the inner wall of the storage tank.
[0009] Preferably, a cleaning brush is also included, with cleaning brushes installed on the front and rear sides of the lower part of the rotating rod, and the cleaning brushes make rotatable contact with the bottom surface of the storage bin.
[0010] As a preferred option, it also includes transparent windows, with transparent windows fixedly connected to the front and rear sides of the storage tank respectively.
[0011] Preferably, a buzzer is also included, with a buzzer installed on the top right side of the rotary valve plate, and the controller is electrically connected to the buzzer.
[0012] The beneficial effects of this utility model are as follows: 1. This utility model controls the first motor to drive the rotary valve plate to rotate from 45° to 90° through the controller, so as to realize the intermittent quantitative feeding of materials, achieve the effect of accurately controlling the volume of each feeding and improving the initial metering accuracy.
[0013] 2. This utility model uses a second motor to drive the connecting rod and the meshing transmission between the first and second bevel gears, which drives the stirring frame on the rotating rod to rotate in the storage bucket, thereby achieving the effect of uniformly stirring the powder material and preventing bridging or poor flow caused by the characteristics of fine powder.
[0014] 3. This utility model uses a scraper on the outside of the mixing rack to maintain slight contact with the inner wall of the storage tank, and removes the attached material as the mixing rack rotates, thereby reducing dead corner accumulation and improving the consistency of material flow.
[0015] 4. This utility model uses a cleaning brush installed at the bottom of the rotating rod to contact the bottom surface of the storage tank, which simultaneously cleans residual powder during the stirring process, thereby reducing bottom accumulation, improving the integrity of the discharge, and enhancing metering stability.
[0016] 5. This utility model transmits power to the connecting rod through the second motor, so that the screw conveyor rod continuously pushes the material in the conveying barrel, and cooperates with the control valve on the discharge pipe to adjust the on / off state and flow rate, so as to achieve stable and controllable feeding and adapt to the downstream process requirements. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] Figure 2 This is a structural diagram of the feed hopper, first motor, and rotary valve plate of this utility model.
[0019] Figure 3 This is a cross-sectional structural diagram of the storage bin and conveying bin of this utility model.
[0020] Figure 4 This is a cross-sectional view of the conveying tank of this utility model.
[0021] Figure 5 This is a cross-sectional view of the storage bin of this utility model.
[0022] Reference numerals: 1_Storage hopper, 101_Controller, 2_Support leg, 3_Feed hopper, 4_First motor, 5_Rotary valve plate, 6_Metering display screen, 7_Discharge port, 8_Second motor, 9_Connecting rod, 10_First bevel gear, 11_Conveying hopper, 12_Screw conveyor rod, 13_Discharge pipe, 14_Control valve, 15_Rotating rod, 16_Agitator, 17_Second bevel gear, 18_Scraper, 19_Cleaning brush, 20_Transparent window, 21_Buzzer. Detailed Implementation
[0023] Example: A powder metering device for a feeder, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the system includes a storage tank 1, a controller 101, support legs 2, a feed hopper 3, a first motor 4, a rotary valve plate 5, a metering display screen 6, a conveying tank 11, a discharge pipe 13, and a control valve 14. The controller 101 is installed on the outer left side of the storage tank 1. Support legs 2 are installed on the front and rear sides of the bottom of the storage tank 1, and anti-vibration pads are provided at the bottom of the support legs 2. The top of the storage tank 1 is connected to and communicates with the feed hopper 3. The first motor 4 is installed on the front side of the feed hopper 3 by bolts. The rotary valve plate 5 is rotatably connected inside the feed hopper 3. The output shaft of the first motor 4 passes through the feed hopper 3 and is connected to the rotary valve plate 5. The metering display screen 6 is installed on the right side of the rotary valve plate 5. A discharge port 7 is opened on the left side of the rotary valve plate 5. The bottom right side of the storage tank 1 is connected to and communicates with the conveying tank 11. The bottom right side of the conveying tank 11 is connected to and communicates with the discharge pipe 13. The control valve 14 is installed on the discharge pipe 13. The controller 101 is electrically connected to the first motor 4 and the metering display screen 6 respectively.
[0024] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, it also includes a second motor 8, a connecting rod 9, a first bevel gear 10, and a screw conveyor 12. The second motor 8 is bolted to the left side of the bottom of the storage tank 1. The output shaft of the second motor 8 extends to the right and is connected to the connecting rod 9. The first bevel gear 10 is connected to the connecting rod 9 by welding. The connecting rod 9 extends to the right and passes through the conveying tank 11, and is connected to the screw conveyor 12. The controller 101 is electrically connected to the second motor 8.
[0025] like Figure 3 and Figure 5 As shown, it also includes a rotating rod 15, a stirring frame 16, a second bevel gear 17, a scraper 18, and a cleaning brush 19. A vertically arranged rotating rod 15 is rotatably connected inside the storage tank 1. The stirring frame 16 is installed on the rotating rod 15. The bottom end of the rotating rod 15 extends downward through the storage tank 1 and is connected to the second bevel gear 17. The first bevel gear 10 meshes with the second bevel gear 17. Two scrapers 18 are symmetrically installed on the outside of the stirring frame 16. The scrapers 18 are in rotatable contact with the inner wall of the storage tank 1. Cleaning brushes 19 are installed on the front and rear sides of the lower part of the rotating rod 15, respectively. The cleaning brushes 19 are in rotatable contact with the inner bottom surface of the storage tank 1.
[0026] like Figure 1 and Figure 2 As shown, it also includes a transparent window 20 and a buzzer 21. The transparent window 20 is attached to the front and rear sides of the storage tank 1 by means of glue. The buzzer 21 is installed on the top right side of the rotary valve plate 5. The controller 101 is electrically connected to the buzzer 21.
[0027] When this device is needed, firstly, the powder material to be measured is poured into the rotary valve plate 5 inside the feed hopper 3. The rotary valve plate 5 is horizontally set inside the feed hopper 3, with a discharge port 7 on its left side and the rest used to carry the material. The top of the storage tank 1 is connected and communicates with the feed hopper 3, and support legs 2 are installed on the front and rear sides of the bottom. The bottom of the support legs 2 is equipped with anti-vibration pads to ensure that the equipment remains stable during operation. The controller 101 serves as the control center of the entire system and is responsible for parameter setting, operation monitoring, and coordinated control of various components.
[0028] When the system is started, the controller 101 controls the first motor 4 to operate. The output shaft of the first motor 4 drives the rotary valve plate 5 to rotate. The rotary valve plate 5 rotates 45° to 90° under the drive of the first motor 4, so that the area carrying the material changes from a closed state to an open state aligned with the discharge port 7. Under the action of gravity, the material falls into the feed hopper 3 through the discharge port 7, and then enters the storage tank 1. By precisely controlling the start and stop angle and rotation speed of the first motor 4, the volume of material discharged each time can be adjusted to achieve intermittent quantitative feeding and achieve a preliminary metering effect.
[0029] At the same time, the controller 101 starts the second motor 8. The output shaft of the second motor 8 drives the connecting rod 9 to rotate. The first bevel gear 10 is fixedly connected to the connecting rod 9. The first bevel gear 10 meshes with the second bevel gear 17 installed at the bottom of the rotating rod 15, thereby transmitting power to the vertically arranged rotating rod 15, causing it to rotate inside the storage tank 1. A stirring frame 16 is installed on the rotating rod 15. The stirring frame 16 rotates continuously with the rotating rod 15 to uniformly stir the powder entering the storage tank 1, preventing the material from bridging, rat holes, or stagnant flow due to small particle size, high humidity, or static electricity.
[0030] Two scrapers 18 are symmetrically installed on the outer side of the mixing rack 16. The scrapers 18 maintain slight contact with the inner wall of the storage tank 1 during the rotation of the mixing rack 16, effectively scraping off the powder adhering to the inner wall and avoiding material accumulation and dead corner formation. At the same time, cleaning brushes 19 are installed on the front and rear sides of the lower part of the rotating rod 15. The cleaning brushes 19 contact the inner bottom surface of the storage tank 1 during the rotation, cleaning the residual material at the bottom, improving the integrity of the discharge and the consistency of metering, and ensuring stable and reliable material conveying.
[0031] After being stirred evenly in the storage tank 1, the material enters the conveying tank 11. The conveying tank 11 is equipped with a spiral conveying rod 12, which is driven by the connecting rod 9 through the second motor 8 to continuously push the material to the right to the discharge pipe 13. The discharge pipe 13 is equipped with a control valve 14, which can control the flow of material or adjust the conveying speed according to the needs of downstream equipment, so as to achieve stable and controllable feeding output.
[0032] During operation, the controller 101 displays the system operating parameters in real time through the metering display screen 6, including the working status of the first motor 4 and the second motor 8, the feeding cycle, alarm information, etc., which makes it convenient for operators to monitor the operation of the equipment. When the material level inside the storage tank 1 is too low or the system malfunctions, the controller 101 can trigger the buzzer 21 to issue an audible and visual alarm to remind the operator to deal with it in time. The storage tank 1 is equipped with transparent windows 20 on the front and rear sides, which can be used to directly observe the internal material height, stirring status and scraper 18 operation, which is convenient for on-site maintenance and troubleshooting.
Claims
1. A powder metering device for a feeder, characterized in that, The system includes a storage hopper (1), a controller (101), support legs (2), a feed hopper (3), a first motor (4), a rotary valve plate (5), a metering display screen (6), a conveying hopper (11), a discharge pipe (13), and a control valve (14). The controller (101) is installed on the outer left side of the storage hopper (1). Support legs (2) are installed on the front and rear sides of the bottom of the storage hopper (1). The bottom of the support legs (2) is equipped with anti-vibration pads. The top of the storage hopper (1) is connected to and communicates with the feed hopper (3). The first motor (4) is fixedly connected to the front side of the feed hopper (3). (3) A rotary valve plate (5) is internally rotatably connected. The output shaft of the first motor (4) passes through the feed hopper (3) and is connected to the rotary valve plate (5). A metering display screen (6) is installed on the right side of the rotary valve plate (5). A discharge port (7) is opened on the left side of the rotary valve plate (5). A conveying tank (11) is connected to and communicates with the bottom right side of the storage tank (1). A discharge pipe (13) is connected to and communicates with the bottom right side of the conveying tank (11). A control valve (14) is installed on the discharge pipe (13). The controller (101) is electrically connected to the first motor (4) and the metering display screen (6) respectively.
2. The powder metering device for a feeder according to claim 1, characterized in that, It also includes a second motor (8), a connecting rod (9), a first bevel gear (10) and a screw conveyor (12). The second motor (8) is fixedly connected to the bottom left side of the storage tank (1). The output shaft of the second motor (8) extends to the right and is connected to the connecting rod (9). The first bevel gear (10) is fixedly connected to the connecting rod (9). The connecting rod (9) extends to the right and passes through the conveying tank (11) and is connected to the screw conveyor (12). The controller (101) is electrically connected to the second motor (8).
3. The powder metering device for a feeder according to claim 2, characterized in that, It also includes a rotating rod (15), a stirring rack (16), a second bevel gear (17), and a scraper (18). A vertically arranged rotating rod (15) is rotatably connected inside the storage tank (1). The stirring rack (16) is installed on the rotating rod (15). The bottom end of the rotating rod (15) extends downward through the storage tank (1) and is connected to the second bevel gear (17). The first bevel gear (10) meshes with the second bevel gear (17). Two scrapers (18) are symmetrically installed on the outside of the stirring rack (16). The scrapers (18) rotate in contact with the inner wall of the storage tank (1).
4. The powder metering device for a feeder according to claim 3, characterized in that, It also includes a cleaning brush (19), with cleaning brushes (19) installed on the front and rear sides of the lower part of the rotating rod (15), and the cleaning brush (19) makes rotational contact with the bottom surface of the storage bucket (1).
5. A powder metering device for a feeder according to claim 4, characterized in that, It also includes a transparent window (20), and the front and rear sides of the storage tank (1) are respectively fixedly connected with transparent windows (20).
6. A powder metering device for a feeder according to claim 5, characterized in that, It also includes a buzzer (21), which is installed on the top right side of the rotary valve plate (5), and the controller (101) is electrically connected to the buzzer (21).