Automatic powder feeding device

Abstract

The utility model relates to the field of material feeding, and particularly discloses an automatic powder feeding device which comprises a hopper and a sealing cover plate arranged at the top of the hopper, a feeding pipe is arranged on the sealing cover plate, the bottom of the hopper communicates with a spiral propeller, a motor is arranged at one end of the spiral propeller, and a feeding pipe is arranged on the sealing cover plate. A discharging opening is formed in the end, away from the motor, of the spiral propeller, a baffle is connected to the position, at the discharging opening, in the spiral propeller in a sliding mode, an anti-fog sealing plate is connected to the end, close to the motor, of the baffle, and a control mechanism used for controlling the baffle and the anti-fog sealing plate to be opened and closed is arranged on the spiral propeller. The powder feeding device has the effect of preventing the powder feeding device from being easily blocked in the next working procedure.

Description

Technical Field

[0001] This application relates to the field of powder feeding devices, and in particular to an automatic powder feeding device. Background Technology

[0002] In current industrial production, powder feeding devices are the core unit of the material conveying system, and their operational efficiency directly affects the continuity of production and the stability of product quality.

[0003] The powder feeding device mainly relies on the material's own gravity for falling and conveying. Since powder is relatively light, automatic feeding is difficult, causing conveying interruptions and fluctuations in material supply to downstream processes. During production, the powder feeding device transports the powder to the forming machine via a conveying device. Inside the forming machine, the powder is moistened with water mist for a certain period before processing.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: when the material feeder performs water mist wetting, it is easy to cause blockage of the powder feeding device, affecting the operation of the powder feeding device and reducing production efficiency. Utility Model Content

[0005] In order to improve the problem that the powder feeding device is easily blocked by the next process, which affects the operation of the powder feeding device and reduces production efficiency, this application provides an automatic powder feeding device.

[0006] The automatic powder feeding device provided in this application adopts the following technical solution:

[0007] An automatic powder feeding device includes a hopper and a closed cover plate disposed on the top of the hopper. A feed pipe is disposed on the closed cover plate. A screw propeller is connected to the bottom of the hopper. A motor is disposed at one end of the screw propeller. A discharge port is disposed at the end of the screw propeller away from the motor. A baffle for blocking the discharge port is slidably connected inside the screw propeller at the discharge port. An anti-fog sealing plate is connected at the end of the baffle plate near the motor. A control mechanism for controlling the opening and closing of the baffle plate and the anti-fog sealing plate is disposed on the screw propeller.

[0008] The control mechanism includes a housing fixed to the end of the propeller away from the motor, an electromagnet disposed inside the housing away from the motor, a spring fixed inside the housing away from the motor, an iron block fixed to the spring near the motor, and a connecting rod fixed to the other end of the iron block. The spring passes through the electromagnet and is fixed to the housing, and the connecting rod is connected to the anti-fog sealing plate.

[0009] By adopting the above technical solution, the powder is fed into the hopper through the feed pipe. The motor drives the screw pusher to rotate, evenly conveying the powder to the discharge port. At the same time, the electromagnet is energized, attracting the iron block. The spring is compressed, and the iron block drives the connecting rod. The connecting rod drives the baffle and the anti-fog sealing plate, opening the discharge port. Because the powder adhering to the baffle is scraped off into the material maker during mixing, when the screw pusher conveys the powder to the discharge port, the anti-fog sealing plate retracts into the outer shell away from the motor, and the powder enters the next process. When the motor is turned off, the screw pusher stops rotating, the discharge port stops discharging, and the electromagnet is de-energized. The spring pushes the iron block, which drives the connecting rod. The connecting rod drives the baffle to close the discharge port, and the anti-fog sealing plate closes the screw pusher pipe. When the feeder sprays and wets the powder particles, the baffle can prevent water mist from entering the screw propeller pipe, and the anti-fog seal can prevent the dry powder inside the screw propeller from overflowing, prevent the escaped water mist from mixing with the powder inside the screw propeller, and avoid the powder from clumping and clogging the screw propeller and the discharge port.

[0010] Optionally, the anti-fog sealing plate is divided into a barrier plate and a water-absorbing plate, with the barrier plate located on the side closer to the motor and the water-absorbing plate located on the side farther away from the motor.

[0011] By adopting the above technical solution, when the anti-fog sealing plate seals the propeller, the barrier layer can effectively prevent the powder inside the propeller from passing through the anti-fog sealing plate. When the barrier layer moves, it scrapes off the powder adhering to the inner wall of the propeller, preventing water mist from mixing with the powder inside the propeller. The water-absorbing layer dries the water mist entering the propeller, avoiding water mist residue and further preventing the problem of powder clumping inside the propeller and causing blockage.

[0012] Optionally, the barrier plate is a circular plate formed by stacking multiple layers of corrosion-resistant and waterproof materials, and the water-absorbing plate is equipped with a drying box, with sponges tightly fitted around the drying box to fit the spiral propeller.

[0013] By adopting the above technical solution, when the anti-fog sealing plate moves, the sponge on the water absorption plate can absorb the water mist adhering to the inside of the propeller, and the drying box on the water absorption plate can dry the water mist absorbed by the sponge; the barrier plate made of multi-layer corrosion-resistant and waterproof material has a longer service life and can reduce the number of maintenance times.

[0014] Optionally, the spiral propeller is provided with a maintenance port above the anti-fog sealing plate, and a maintenance cover adapted to it is hinged to the spiral propeller at the maintenance port. The water absorption plate is provided with two wedge-shaped blocks, and the barrier plate is provided with two arc-shaped grooves adapted to the wedge-shaped blocks. The two arc-shaped grooves are symmetrically distributed on the barrier plate.

[0015] By adopting the above technical solution, when the anti-fog sealing plate is damaged, the maintenance cover on the propeller can be opened, the anti-fog sealing plate can be twisted to remove it from the connecting rod, and the baffle plate and water absorption plate can be twisted to separate them. The damaged parts can then be repaired or replaced, reducing maintenance costs and simplifying maintenance.

[0016] Optionally, a vibration motor is provided on the bottom side wall of the hopper.

[0017] By adopting the above technical solution, when the vibration motor is powered on, it drives the hopper to vibrate, and the powder accumulated inside the hopper is vibrated off, preventing the powder from accumulating inside the hopper and ensuring that the powder inside the hopper is transported evenly.

[0018] Optionally, both the vibration motor and the electromagnet are electrically connected to the motor.

[0019] By adopting the above technical solution, when the motor switch is started or turned off, the vibration motor and the motor start or stop simultaneously, reducing the number of operation steps and making it more convenient for workers to operate.

[0020] Optionally, a breathing port is provided on the closed cover, and a breathing mask is provided on the breathing port.

[0021] By adopting the above technical solution, when powder is fed into the feed inlet, the internal pressure of the hopper is released through the vent. The breathing hood on the vent intercepts the dust raised during the feeding process, preventing the dust generated during feeding from overflowing and causing dust pollution.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. When the powder feeding device stops operating, the electromagnet is de-energized and loses its magnetic force. The spring pushes the baffle to close the feed port, and the anti-fog seal closes the screw propeller. The powder enters the feed mill for processing. The baffle isolates the powder and water mist splashed by the feed mill, preventing the screw propeller from clogging. The anti-fog seal prevents powder from overflowing from inside the screw propeller and also prevents water mist that is not isolated by the baffle from entering the screw propeller. This further avoids contact between powder and water mist, preventing the screw propeller from clogging and ensuring orderly production.

[0024] 2. When the powder feeding device is feeding, the electromagnet is energized, generating magnetic force to attract the iron block. The spring is compressed, and the baffle moves away from the top of the discharge port. The powder adhering to the side of the baffle near the discharge port is hooked off and enters the feeding machine, avoiding powder waste. The anti-fog sealing plate and the baffle retract into the screw propeller at the end away from the motor, preventing powder from entering the water suction plate side of the anti-fog sealing plate during the conveying process, which would cause damage to the water suction plate, reduce maintenance frequency, and extend the service life of the water suction plate.

[0025] 3. When the anti-fog sealing plate is damaged, the water absorption plate and the barrier plate can be disassembled by rotating them. The damaged parts can then be repaired or replaced, which reduces the difficulty of repair and saves repair costs. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0027] Figure 2 It is along Figure 1 Schematic diagram of the cross-sectional structure along line AA;

[0028] Figure 3 yes Figure 2 Enlarged schematic diagram of part B in the middle;

[0029] Figure 4 This is an exploded view of the barrier plate, arc-shaped chute, water-absorbing plate, and wedge block used in the embodiments of this application.

[0030] Reference numerals: 1. Hopper; 2. Enclosed cover; 3. Feed pipe; 4. Screw propeller; 5. Motor; 6. Discharge port; 7. Control mechanism; 8. Anti-fog sealing plate; 9. Baffle; 10. Breathing port; 11. Breathing mask; 12. Outer shell; 13. Electromagnet; 14. Spring; 15. Iron block; 16. Connecting rod; 17. Barrier plate; 18. Water absorption plate; 19. Sponge; 20. Drying box; 21. Maintenance port; 22. Maintenance cover; 23. Vibration motor; 24. Wedge block; 25. Arc-shaped chute. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0032] This application discloses an automatic powder feeding device. (Refer to...) Figures 1 to 3 An automatic powder feeding device includes a hopper 1, a closed cover plate 2 disposed on the top of the hopper 1, a screw propeller 4 disposed on the bottom of the hopper 1, a motor 5 disposed at one end of the screw propeller 4, a discharge port 6 disposed at the end of the screw propeller 4 away from the motor 5, a baffle 9 disposed on the screw propeller 4 and slidably connected to the discharge port 6, an anti-fog sealing plate 8 disposed on the side of the baffle 9 close to the motor 5, and a control mechanism 7 disposed on the end of the screw propeller 4 away from the motor 5 for controlling the movement of the baffle 9 and the anti-fog sealing plate 8; the control mechanism 7 includes a housing 12 fixed to the end of the screw propeller 4 away from the motor 5, an electromagnet 13 disposed on the side of the housing 12 away from the motor 5, a spring 14 disposed inside the housing 12 and connected to the housing 12, an iron block 15 fixed to the side of the spring 14 close to the motor 5, and a connecting rod 16 fixed to the other side of the iron block 15, the connecting rod 16 being threadedly connected to the anti-fog sealing plate 8.

[0033] When motor 5 is started, the screw propeller 4 begins to transport powder. Electromagnet 13 is energized, generating magnetic force. Electromagnet 13 attracts iron block 15, causing baffle 9 and anti-fog sealing plate 8 to move inside screw propeller 4. Powder enters the material processing machine through discharge port 6 for processing. During the movement of baffle 9, powder adhering to it is scraped off and falls into the material processing machine, preventing powder waste and also preventing lumps of powder from clogging discharge port 6. When motor 5 is turned off, screw propeller 4 stops transporting powder, and electromagnet 13 loses its magnetism. Force, spring 14 pushes the baffle 9 and anti-fog sealing plate 8 open, anti-fog sealing plate 8 closes the screw propeller 4, baffle 9 closes the feed port 6. When the material maker processes powder with water mist, baffle 9 blocks the splashed powder and most of the water mist outside the screw propeller 4 to prevent the powder from agglomerating and clogging the screw propeller 4. Anti-fog sealing plate 8 blocks the dust of the powder inside the screw propeller 4 from passing through, and prevents the small amount of water mist that passes through baffle 9 from mixing with the dust of the powder, thus avoiding the blockage problem between anti-fog sealing plate 8, baffle 9 and screw propeller 4.

[0034] In other feasible embodiments, the spring 14 and the iron block 15 can be replaced with permanent magnets. The control mechanism 7 adjusts the magnetic field direction of the electromagnet 13. When the electromagnet 13 attracts the permanent magnet, the permanent magnet drives the connecting rod 16. The connecting rod 16 drives the anti-fog sealing plate 8 and the baffle 9 to open the feed port 6. When the electromagnet 13 repels the permanent magnet, the permanent magnet pushes the connecting rod 16 to move. The connecting rod 16 pushes the anti-fog sealing plate 8 and the baffle 9 to move and close the feed port 6. When the elastic rope is replaced, the electromagnet 13 needs to be energized to control the movement of the anti-fog sealing plate 8 and the baffle 9, which consumes more energy but has a stronger ability to adjust the anti-fog sealing plate 8 and the baffle 9.

[0035] refer to Figure 3 and Figure 4 The anti-fog sealing plate 8 is divided into a barrier plate 17 and a water-absorbing plate 18. The barrier plate 17 is located inside the propeller near the motor 5, and the water-absorbing plate 18 is located inside the screw propeller 4 away from the motor 5. The barrier plate 17 is made of multiple layers of corrosion-resistant resin boards. The water-absorbing plate 18 is provided with two wedge-shaped blocks 24. The barrier plate 17 has two arc-shaped grooves 25 that fit with the wedge-shaped blocks 24. The openings at both ends of the arc-shaped grooves 25 are larger than those of the wedge-shaped blocks 24. The water-absorbing plate 18 is provided with a ring-shaped water-absorbing sponge 19. A drying box 20 is provided in the middle of the sponge 19. The drying box 20 is detachable.

[0036] When the anti-fog sealing plate 8 closes the screw propeller 4, the baffle plate 17 can effectively prevent the powder inside the screw propeller 4 pipe from passing through the anti-fog sealing plate 8; when water mist passes through the baffle plate 9 and enters the screw propeller 4, the sponge 19 on the water absorption plate 18 can absorb the water mist adhering to the inner wall of the screw propeller 4, and the desiccant placed inside the drying box 20 can dry the sponge 19 and the water mist entering the screw propeller 4, prevent water mist from accumulating, keep the inside of the screw propeller 4 dry, and prevent blockage; the baffle plate 17 and the water absorption plate 18 are provided with arc-shaped sliding grooves 25 and wedge-shaped blocks 24, and the baffle plate 17 and the water absorption plate 18 can be disassembled and separated by twisting, which is convenient for replacing damaged parts and saves replacement costs; when it is necessary to replace the desiccant inside the drying box 20, the drying box 20 can be removed from the water absorption plate 18 for filling, which is convenient for workers to operate.

[0037] refer to Figure 3 The propeller 4 is located above the anti-fog sealing plate 8 and has a maintenance port 21. The maintenance port 21 is equipped with a maintenance cover 22 that is compatible with it, and the maintenance cover 22 is inlaid with transparent glass in the middle.

[0038] When the screw propeller 4 is conveying powder, the powder conveying status can be observed through the maintenance cover 22 to infer the remaining powder in the hopper 1 and replenish the powder in the hopper 1 in a timely manner. It can also be used to observe whether there is any blockage inside the screw propeller 4. When the powder is not conveyed, the water mist content inside the screw propeller 4 can be observed through the maintenance cover 22 to determine the usage status of the drying box 20 and facilitate the replacement of the drying box 20. When damage occurs, opening the maintenance cover 22 facilitates timely repair and replacement.

[0039] refer to Figure 2 A vibration motor 23 is installed on the side wall of the hopper 1. Powder accumulates in the hopper 1 and tends to adhere to the side wall, causing uneven powder feeding to the screw propeller 4 and affecting the feeding efficiency. When the vibration motor 23 is started, it will disperse the powder accumulated in the hopper 1, which will help the powder enter the screw propeller 4.

[0040] refer to Figure 1 and Figure 2 The sealed cover plate 2 has a vent 10, and a breathing hood 11 is provided on the vent 10. When a large amount of powder enters the hopper 1 through the feed pipe 3, the pressure generated in the hopper 1 can be released through the vent 10, and the breathing hood 11 provided on the vent 10 can isolate the dust agitated when the powder enters the hopper 1, and prevent dust from being generated.

[0041] The implementation principle of the automatic powder feeding device in this application embodiment is as follows: When the automatic powder feeding device feeds powder, the motor 5 is started, the screw propeller 4 begins to convey powder, and at the same time, the electromagnet 13 generates magnetic force to attract the iron block 15, which drives the baffle 9 and the anti-fog sealing plate 8 to move, and the material is discharged from the discharge port 6. The powder on the side of the baffle 9 near the discharge port 6 is scraped off and falls into the material forming machine; when the automatic powder feeding device stops feeding, the motor 5 is turned off, the electromagnet 13 is de-energized, the spring 14 pushes the baffle 9 and the anti-fog sealing plate 8 to close the discharge port 6. When the powder enters the material forming machine for processing, the baffle 9 isolates the powder and most of the water mist from entering the screw propeller 4, and the anti-fog sealing plate 8 prevents the powder from passing through the screw propeller 4. At the same time, it dries the water mist that passes through the baffle 9 to prevent the water mist and powder from mixing and causing the screw propeller 4 to be blocked, which would affect the powder processing efficiency.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic powder feeding device, characterized in that: Includes a hopper (1) and a closed cover plate (2) set on the top of the hopper (1). The closed cover plate (2) is provided with a feed pipe (3). The bottom of the hopper (1) is connected to a screw propeller (4). One end of the screw propeller (4) is provided with a motor (5). The end of the screw propeller (4) away from the motor (5) is provided with a discharge port (6). A baffle (9) for blocking the discharge port (6) is slidably connected inside the screw propeller (4) at the discharge port (6). An anti-fog sealing plate (8) is connected to the end of the baffle (9) near the motor (5). A control mechanism (7) for controlling the opening and closing of the baffle (9) and the anti-fog sealing plate (8) is provided on the screw propeller (4). The control mechanism (7) includes a housing (12) fixed to the end of the propeller (4) away from the motor (5), an electromagnet (13) disposed inside the housing (12) away from the motor (5), a spring (14) fixed inside the housing (12) away from the motor (5), an iron block (15) fixed to the end of the spring (14) near the motor (5), and a connecting rod (16) fixed to the other end of the iron block (15). The spring (14) passes through the electromagnet (13) and is fixed to the housing (12). The connecting rod (16) is connected to the anti-fog sealing plate (8).

2. The automatic powder feeding device according to claim 1, characterized in that: The anti-fog sealing plate (8) is divided into a barrier plate (17) and a water-absorbing plate (18). The barrier plate (17) is located on the side closer to the motor (5), and the water-absorbing plate is located on the side away from the motor (5).

3. The automatic powder feeding device according to claim 2, characterized in that: The barrier plate (17) is a circular plate formed by stacking multiple layers of corrosion-resistant and waterproof materials. The water-absorbing plate (18) includes a drying box (20) and a sponge (19) that is closely attached to the spiral propeller (4) around the drying box (20).

4. The automatic powder feeding device according to claim 2, characterized in that: The spiral propeller (4) is provided with a maintenance port (21) above the anti-fog sealing plate (8). The spiral propeller (4) is hinged with a maintenance cover (22) that matches the maintenance port (21). The water absorption plate (18) is provided with two wedge blocks (24). The barrier plate (17) is provided with two arc-shaped grooves (25) that match the wedge blocks (24). The two arc-shaped grooves (25) are symmetrically distributed on the barrier plate (17).

5. The automatic powder feeding device according to claim 1, characterized in that: A vibration motor (23) is provided on the bottom side wall of the hopper (1).

6. The automatic powder feeding device according to claim 5, characterized in that: The vibration motor (23) and the electromagnet (13) are both electrically connected to the motor (5).

7. The automatic powder feeding device according to claim 1, characterized in that: The closed cover plate (2) has a breathing port (10), and a breathing mask (11) is provided on the breathing port (10).

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