CN204110659U - Powder blanking device - Google Patents

Abstract

A powder blanking device comprises a shell unit with a blanking hopper, a stirring unit matched with the blanking hopper, and an air interference unit used for turning powder together with the stirring unit. The blanking hopper is provided with a connecting end communicated with a feeding device and a blanking end which is opposite to the connecting end and surrounds to form a blanking port. The stirring unit comprises a stirring mechanism transversely penetrating through the blanking hopper and a driving motor driving the stirring mechanism to rotate. The air interference unit comprises a plurality of nozzles extending into the blanking hopper, a plurality of branch pipes respectively communicated with the nozzles, and at least one main pipe communicated with the branch pipes and communicated with an air supply device, wherein the nozzles spray the air supplied by the air supply device into the blanking hopper, and the nozzles are matched with the stirring mechanism to turn over the powder temporarily stored in the blanking hopper. The utility model discloses can make the powder in the blanking fill constantly turn with the mode of stirring and gas disturbance simultaneously, avoid the powder in the blanking fill to produce bridging effect.

Description

Powder blanking device

technical field

The utility model relates to a material blanking device, in particular to a powder material blanking device which prevents stored powder from producing a bridging effect during the material feeding process.

Background technique

Referring to FIG. 1 , it is a conventional blanking device 1 , which includes a lower hopper 11 and a gate knife valve 12 connected to the lower end of the lower hopper 11 . The lower hopper 11 has a storage portion 111 connected to the front feeding device (not shown in the figure), and an inclined portion 112 connected to the lower end of the storage portion 111 . The inclined part 112 is provided with a vibrating motor 2, and the vibration generated by the vibrating motor 2 will be transmitted to the inclined part 112 of the lower hopper 11 to assist in blanking, so that when the gate knife valve 12 is opened, the stored material in the storage part 111 The powder can pass through the inclined portion 112 and fall through the knife gate valve 12 .

However, when the moisture content of the powder stored in the storage portion 111 of the lower hopper 11 is high, the lower hopper 11 seeps water, or the environment humidity is increased due to the weather, etc., it is possible for the powder to be stored in the lower hopper 11. A "bridging effect" occurs in the lower hopper 11 , that is, the powders tend to agglomerate each other or adhere to the inner wall of the lower hopper 11 , so that they cannot fall smoothly from the knife gate valve 12 .

When the above-mentioned bridging effect occurs, simply using the vibrating motor 2 provided on the inclined portion 112 of the lower hopper 11 to assist in the blanking is not enough to destroy the bridging effect generated by the powder stored in the lower hopper 11 . Therefore, all practitioners in related fields have taken great pains to solve the problem of powder blanking and develop a blanking device that can destroy the bridging effect.

Utility model content

The purpose of the utility model is to provide a powder blanking device which can effectively destroy the bridging effect.

The powder blanking device of the utility model comprises: a shell unit, a stirring unit arranged in cooperation with the shell unit, and an air disturbance unit used to stir the powder together with the stirring unit. The housing unit includes a discharge hopper, which has a connection end communicating with a feeding device, and a discharge end located on the opposite side of the connection end and surrounding a discharge opening. The stirring unit is arranged in conjunction with the dropping hopper, and is used to stir the powder temporarily stored in the dropping hopper. The stirring unit includes a stirring mechanism transversely penetrating the dropping hopper, and a driving motor driving the stirring mechanism to rotate. The air disturbance unit includes a plurality of nozzles extending through the drop hopper, a plurality of branch pipes respectively communicating with the nozzles, and at least one main pipe communicating with the branch pipes and communicating with an air supply device, and the nozzles will The gas supplied by the gas supply device is sprayed into the falling hopper to stir the powder temporarily stored in the falling hopper.

The purpose of the utility model and the solution to its technical problems can also be further realized by adopting the following technical measures.

Preferably, in the aforementioned powder feeding device, the stirring unit further includes a reducer driven by the driving motor to drive the stirring mechanism.

Preferably, in the aforementioned powder feeding device, the agitating mechanism of the stirring unit has a rotating shaft passing through the feeding hopper transversely, and a plurality of blades connected to the rotating shaft.

Preferably, the aforementioned powder feeding device, wherein the blades are spaced apart along the axial direction of the rotating shaft, and the included angle between the extension line extending from two adjacent blades to the axis of the rotating shaft is in the range of 60 to 120 degrees. .

Preferably, in the aforementioned powder feeding device, the included angle is 90 degrees.

Preferably, in the aforementioned powder feeding device, a cutting surface passing through the shaft center of the rotating shaft along the radial direction of the rotating shaft is defined, and each blade has an extending surface passing through the cutting surface, and the cutting surface and the cutting surface are The included angle of the extension surface is in the range of 30 to 60 degrees.

Preferably, in the aforementioned powder feeding device, the included angle is 30 degrees.

Preferably, the aforementioned powder feeding device, wherein, the feeding hopper of the housing unit also has a surrounding wall connected to the connection end and located above the stirring unit, and a surrounding wall connected to the feeding end and located on the stirring unit The lower part of the blanking wall.

Preferably, in the aforementioned powder discharge device, at least one inspection hole is opened on the surrounding wall of the discharge hopper.

Preferably, the aforementioned powder discharging device further includes a vibration unit installed on the outer surface of the discharge hopper, and the vibration unit is used to generate a specific vibration frequency to strike the discharge hopper.

The beneficial effect of the utility model is that: through the stirring unit and the air disturbance unit, the powder temporarily stored in the dropping hopper can be continuously turned by means of stirring and gas disturbance at the same time, and the powder temporarily stored in the dropping hopper can be avoided. The powder has a bridging effect and cannot be smoothly discharged from the discharge port.

Description of drawings

Fig. 1 is a schematic side view illustrating an existing blanking device;

Fig. 2 is a perspective view illustrating a preferred embodiment of the utility model powder blanking device;

Fig. 3 is a schematic side view illustrating the composition of the components of the preferred embodiment;

Fig. 4 is a top view, assisting in explaining Fig. 3;

Figure 5 is a front view illustrating a stirring mechanism of a stirring unit;

Fig. 6 is a side view, assisting in explaining Fig. 5; and

Fig. 7 is a schematic diagram illustrating the arrangement of multiple blades of the stirring mechanism.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

Referring to Fig. 2 and Fig. 3, the preferred embodiment of the powder feeding device 3 of the present utility model comprises a shell unit 31, a stirring unit 32 arranged in conjunction with the shell unit 31, and a stirring unit 32 for working together with the stirring unit 32 An air disturbance unit 33 for stirring the powder, and a vibration unit 34 installed on the outer surface of the shell unit 31 .

The housing unit 31 includes a discharge hopper 311, the discharge hopper 311 has a connection end 312 communicating with a feeding device (not shown in the figure), an opening 310 that is located on the opposite side of the connection end 312 and surrounds a discharge opening 310. The feeding end 313 , a surrounding wall portion 315 connected to the connecting end 312 and located above the mixing unit 32 and provided with three inspection holes 314 , and a discharging wall portion 316 located below the mixing unit 32 . The manhole 314 can be used by maintenance personnel to enter the hopper 311 for routine maintenance and inspection.

Referring to Fig. 4 and Fig. 5, the agitating unit 32 is used to agitate the powder temporarily stored in the hopper 311, and includes an agitating mechanism 321 transversely disposed on the hopper 311, and a mechanism for driving the agitating mechanism 321 to rotate A drive motor 322, and a speed reducer 323 driven by the drive motor 322 to drive the stirring mechanism 321. As shown in FIG. 5 , the stirring mechanism 321 has a rotating shaft 324 passing through the hopper 311 transversely, and a plurality of blades 325 connected to the rotating shaft 324 . Wherein, the vanes 325 are spaced apart along the axial direction of the rotating shaft 324 , and as shown in FIG. 6 , the included angle between two adjacent vanes 325 extending to the axis of the rotating shaft 324 is 90 degrees. But not limited thereto, for example, the included angle between the extension lines of two adjacent blades extending to the axis of the rotating shaft may be in the range of 60 to 120 degrees. As shown in FIG. 7 , define a cutting surface 41 passing through the axis of the rotating shaft 324 along the radial direction of the rotating shaft 324 , and each blade 325 has an extending surface 326 passing through the cutting surface 41 , the cutting surface 41 and each An included angle of an extension surface 326 is 30 degrees. But not limited thereto, for example, the included angle between the cutting surface and each extending surface may be in the range of 30 to 60 degrees. Through the above-mentioned arrangement design of the shaft 324 and the blades 325, not only can the powder stored in the discharge hopper 311 be more evenly stirred, but also the powder loosened by stirring can be concentrated toward the discharge port 310, so that the discharge material more smoothly. The setting of the speed reducer 323 can reduce the rotation speed of the drive motor 322 and increase the output torque, so that the effect of rotation and stirring is better.

Referring to Fig. 3 and Fig. 4 again, the air disturbance unit 33 includes a plurality of nozzles 331 penetrating through and extending into the drop hopper 311, a plurality of branch pipes 332 respectively connected to the nozzles 331, and two branch pipes 332 connected to each other. And a main pipe 333 communicating with an air supply device (not shown). The air supply device sprays the gas from the nozzle 331 into the hopper 311 through the main pipe 333 and the branch pipe 332, and cooperates with the stirring unit 32 to stir the powder, and stirs and temporarily stores it in the hopper 311 powder, to avoid the bridging effect of the powder in the falling hopper 311 due to moisture.

The vibration unit 34 is installed on the outer surface of the hopper 311, and is used to generate a specific vibration frequency to knock the hopper 311, transfer energy to the powder stored in the hopper 311, and destroy the bridge between powders Effect, also assists the stirring unit 32 and the air disturbance unit 33 from the outside of the dropping hopper 311, so that the powder is not easy to adhere to the inner wall of the dropping hopper 311, so that the powder can fall from the feeding opening 310 smoothly.

Therefore, it can be seen from the above that the powder blanking device 3 of the present utility model does have the following advantages in practical application:

(1) Cooperating with the agitation action of the stirring unit 32 and the gas blowing action of the air disturbance unit 33, the powder stored in the hopper 311 can be completely turned, so that the powder is in the hopper 311 Maintain a loose state to avoid the bridging effect of the powder in the falling hopper 311 .

(2) The vibrating unit 34 can generate a specific vibration frequency to knock the hopper 311, and transfer energy to the powder stored in the hopper 311, so as to prevent the powder from adhering to the hopper 311 due to moisture. The inner wall can assist the stirring unit 32 and the air disturbance unit 33 to ensure that the powder can fall smoothly from the discharge opening 310 .

To sum up, the stirring unit 32 and the air disturbance unit 33 can stir the temporarily stored powder in the dropping hopper 311 from the inside of the dropping hopper 311, and the vibrating unit 34 can knock the falling powder from the outside of the dropping hopper 311. The hopper 311 prevents the powder from adhering to the inner wall of the hopper 311, and cooperates with the agitation and vibration effects produced by the stirring unit 32, the air disturbance unit 33 and the vibration unit 34 to prevent the powder from being trapped in the hopper 311. A bridging effect is generated to ensure that the powder can smoothly fall from the discharge opening 310, so the purpose of the present utility model can indeed be achieved.

Claims (9)

1. A powder feeding device, comprising a housing unit, the housing unit includes a dropping hopper, the dropping hopper has a connecting end communicated with a feeding device, and a connecting end located on the opposite side and formed around A blanking end of a blanking port; it is characterized in that the powder blanking device also includes a stirring unit and an air disturbance unit, the stirring unit is arranged in conjunction with the blanking hopper, and is used to stir the powder temporarily stored in the blanking hopper Powder, the stirring unit includes a stirring mechanism transversely installed in the dropping hopper, and a drive motor to drive the stirring mechanism to rotate, the air disturbance unit includes a plurality of nozzles extending through the dropping hopper, multiple The branch pipes respectively connected to the nozzles, and at least one main pipe connected to the branch pipes and communicated with a gas supply device, the nozzles spray the gas supplied by the gas supply device into the falling hopper to turn the gas temporarily stored in the The powder in the drop hopper. the 2. The powder feeding device according to claim 1, wherein the stirring unit further comprises a speed reducer driven by the driving motor to drive the stirring mechanism. the 3 . The powder feeding device according to claim 1 , wherein the agitating mechanism of the stirring unit has a rotating shaft passing through the feeding hopper transversely, and a plurality of blades connected to the rotating shaft. 4 . the 4. The powder feeding device according to claim 3, wherein the blades are spaced apart along the axial direction of the rotating shaft, and the included angle between two adjacent blades extending to the axis of the rotating shaft is In the range of 60 to 120 degrees. the 5. The powder feeding device according to claim 4, wherein the included angle is 90 degrees. the 6. The powder feeding device according to claim 4, characterized in that, a cutting surface passing through the shaft center of the rotating shaft along the radial direction of the rotating shaft is defined, and each blade has an extending surface passing through the cutting surface , the included angle between the cutting surface and the extending surface is in the range of 30 to 60 degrees. the 7. The powder feeding device according to claim 6, wherein the included angle is 30 degrees. the 8. The powder feeding device according to claim 1, wherein the hopper of the housing unit also has a surrounding wall connected to the connecting end and positioned above the stirring unit, and a wall connected to the feeding hopper. end and is located at the lower part of the stirring unit. the 9. The powder feeding device according to claim 8, characterized in that, at least one inspection hole is provided around the wall of the dropping hopper. the