阅读说明：本技术 一种金属粉倒料流量控制装置 (Metal powder pouring flow control device ) 是由 魏放 于 2019-11-03 设计创作，主要内容包括：一种金属粉倒料流量控制装置,包括下料管,所述下料管包括同轴的限流管、均流管和定量下料管；限流管位于均流管之上,均流管位于定量下料管之上；所述限流管包括环形气囊、气阀、气管,环形气囊固定在限流管内,其纵截面为双曲线形,充气时气囊内径变小,放气时,气囊内径变大,气囊与气管连通,气管上固定设置气阀用于开闭气管；还包括均流管,均流管用于缓冲金属粉流速,是金属粉均匀下料；还包括定量下料管,定量下料管的内壁上固定多个拉簧,拉簧底端固定连接一个吊板,吊板为椭圆形,其所在平面与下料管轴线之间的夹角在15-30度范围内。该流量控制装置能够有效的提高筛机工作效率,便于人工操作。(A metal powder pouring flow control device comprises a discharging pipe, wherein the discharging pipe comprises a coaxial flow limiting pipe, a flow equalizing pipe and a quantitative discharging pipe; the flow limiting pipe is positioned on the flow equalizing pipe, and the flow equalizing pipe is positioned on the quantitative blanking pipe; the flow limiting pipe comprises an annular air bag, an air valve and an air pipe, wherein the annular air bag is fixed in the flow limiting pipe, the longitudinal section of the flow limiting pipe is hyperbolic, the inner diameter of the air bag is reduced during inflation, the inner diameter of the air bag is increased during deflation, the air bag is communicated with the air pipe, and the air valve is fixedly arranged on the air pipe and used for opening and closing the air pipe; the flow equalizing pipe is used for buffering the flow velocity of the metal powder and uniformly discharging the metal powder; the quantitative feeding pipe is characterized by further comprising a quantitative feeding pipe, a plurality of tension springs are fixed on the inner wall of the quantitative feeding pipe, the bottom ends of the tension springs are fixedly connected with a hanging plate, the hanging plate is oval, and the included angle between the plane where the hanging plate is located and the axis of the feeding pipe is 15-30 degrees. This flow control device can effectual improvement sieve machine work efficiency, the manual operation of being convenient for.)

1. A metal powder pouring flow control device comprises a blanking pipe, and is characterized in that the blanking pipe comprises a coaxial flow limiting pipe, a flow equalizing pipe and a quantitative blanking pipe; the flow limiting pipe is positioned on the flow equalizing pipe, and the flow equalizing pipe is positioned on the quantitative blanking pipe;

the flow limiting pipe comprises an annular air bag, an air valve and an air pipe, wherein the annular air bag is fixed in the flow limiting pipe, the longitudinal section of the flow limiting pipe is hyperbolic, the inner diameter of the air bag is reduced during inflation, the inner diameter of the air bag is increased during deflation, the air bag is communicated with the air pipe, and the air valve is fixedly arranged on the air pipe and used for opening and closing the air pipe;

the device also comprises a flow equalizing pipe, the flow equalizing pipe comprises a flow guide groove and a flow slowing groove, the flow guide groove is funnel-shaped, the outer edge of a feed inlet of the flow equalizing pipe is only attached to the inner wall of the flow equalizing pipe, a blanking hopper is a feed end with an oblique port pointing to the flow slowing groove, one end of the flow slowing groove is fixed on the inner wall of the flow equalizing pipe, an opening on one side, close to the flow equalizing pipe, of the top of the flow slowing groove is used for feeding, the vacant ends are inclined downwards, the openings of the flow slowing grooves positioned on the uppermost portion are communicated with a blanking port of the flow guide groove, the vacant ends of the flow slowing grooves sequentially downwards are opposite in pointing direction to the vacant ends of the flow slowing grooves positioned on the upper side, and the vacant;

the quantitative feeding pipe is characterized by further comprising a quantitative feeding pipe, a plurality of tension springs are fixed on the inner wall of the quantitative feeding pipe, the bottom ends of the tension springs are fixedly connected with a hanging plate, the hanging plate is oval, and the included angle between the plane where the hanging plate is located and the axis of the feeding pipe is 15-30 degrees.

2. A flow control device for discharging metallic powder according to claim 1, wherein the bottom end of the discharging pipe is formed as a beveled opening inclined in a direction opposite to the direction in which the hanger plate is inclined, and a reverse discharging plate is fixed to the bottom side of the beveled opening by a coil spring.

3. A metal powder pouring flow control device as claimed in claim 1, wherein in the material non-covered state, the upper surface of the hanger plate is closely attached to an elliptical convex ring on the inner wall of the discharge pipe, and the convex width of the convex ring is 2-3 mm.

4. A powder flow control device as claimed in claim 1, wherein the angle between the axis of the buffer trough and the horizontal is between 20 and 40 degrees.

Technical Field

The invention relates to a pouring flow control device of metal powder for metal powder production.

Background

The metal powder in the collection tank is poured into a sifter for sifting, typically into a collection canister, and then manually scooped up with a spoon or other implement into the sifter. The operation is time-consuming, and workers need to take care of the screening machine and continuously pour the materials, so that the whole screening process is invisibly prolonged, and the working efficiency of the workers is low.

Disclosure of Invention

The invention aims to provide a metal powder pouring flow control device which is convenient for controlling the blanking flow.

In order to achieve the purpose, the invention comprises a blanking pipe, wherein the blanking pipe comprises a flow limiting pipe, a flow equalizing pipe and a quantitative blanking pipe;

the flow limiting pipe comprises an annular air bag, an air valve and an air pipe, wherein the annular air bag is fixed in the flow limiting pipe, the longitudinal section of the flow limiting pipe is hyperbolic, the inner diameter of the air bag is reduced during inflation, the inner diameter of the air bag is increased during deflation, the air bag is communicated with the air pipe, and the air valve is fixedly arranged on the air pipe and used for opening and closing the air pipe;

the device also comprises a flow equalizing pipe, the flow equalizing pipe comprises a flow guide groove and a flow slowing groove, the flow guide groove is funnel-shaped, the outer edge of a feed inlet of the flow equalizing pipe is only attached to the inner wall of the flow equalizing pipe, a blanking hopper is a feed end with an oblique port pointing to the flow slowing groove, one end of the flow slowing groove is fixed on the inner wall of the flow equalizing pipe, an opening on one side, close to the flow equalizing pipe, of the top of the flow slowing groove is used for feeding, the vacant ends are inclined downwards, the openings of the flow slowing grooves positioned on the uppermost portion are communicated with a blanking port of the flow guide groove, the vacant ends of the flow slowing grooves sequentially downwards are opposite in pointing direction to the vacant ends of the flow slowing grooves positioned on the upper side, and the vacant;

the quantitative feeding pipe is characterized by further comprising a quantitative feeding pipe, a plurality of tension springs are fixed on the inner wall of the quantitative feeding pipe, the bottom ends of the tension springs are fixedly connected with a hanging plate, the hanging plate is oval, and the included angle between the plane where the hanging plate is located and the axis of the feeding pipe is 15-30 degrees.

Furthermore, the bottom end of the blanking pipe is provided with an inclined opening, the inclined direction of the inclined opening is opposite to that of the hanging plate, and a reverse blanking plate is fixed at the bottom side of the inclined opening through a coil spring.

Furthermore, under the state of no material covering, the upper surface of the hanging plate is tightly attached to the elliptical convex ring on the inner wall of the discharging pipe, and the protruding width of the convex ring is 2-3 mm.

Preferably, the included angle between the axes of the buffer grooves and the horizontal direction is between 20 and 40 degrees. Such an angle facilitates a gentle flow of the metal powder.

The invention has the advantages that the metal powder can be evenly and intermittently fed onto the screen by arranging the current-limiting, flow-equalizing and quantitative feeding pipes, thereby being beneficial to improving the working efficiency of the screening machine. In addition, the flow control device is directly arranged on the collecting tank of the metal powder, so that the process of pouring the metal powder into the open cylinder can be reduced, the contact time of the metal powder and air can be shortened, the working efficiency is further improved, and the product quality is improved.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a plan view of the slow flow groove.

In the figure, a flow-limiting pipe 20, an annular air bag 21, an air valve 22, an air pipe 23, a flow equalizing pipe 30, a diversion trench 31, a slow flow trench 32, a circulation trench feed inlet 321, a circulation trench feed bevel 322, a quantitative feed pipe 40, a tension spring 41, a hanger plate 42, a reverse feed plate 50 and a coil spring 51.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings.

The metal powder pouring flow control device comprises a blanking pipe, and is characterized in that the blanking pipe comprises a flow limiting pipe 20, a flow equalizing pipe 30 and a quantitative blanking pipe 40;

the current-limiting tube 20 is used for restricting metal powder unloading speed, can the internal diameter of adjusting pipe, it includes annular gasbag 21, pneumatic valve 22, trachea 23, annular gasbag 21 is fixed in current-limiting tube 20, its longitudinal section is the hyperbola shape, the gasbag internal diameter diminishes when aerifing, during the gassing, gasbag internal diameter grow, gasbag and trachea 23 intercommunication, fixed pneumatic valve 22 that sets up on the trachea is used for the switching trachea, trachea and a glueballs intercommunication, the manual work of being convenient for like this is inflated and is deflated, glueballs and trachea can use and measure the glueballs and the same structure of trachea that blood pressure used, the one-hand operation of being convenient for.

The flow equalizing pipe 30 is used for enabling metal powder to flow uniformly relatively and avoiding material buffering, the flow equalizing pipe 30 comprises a flow guide groove 31 and a flow slowing groove 32, the flow guide groove 31 is funnel-shaped, the outer edge of a feed inlet of the flow equalizing pipe 30 is only attached to the inner wall of the flow equalizing pipe 30, a discharging hopper is a feeding end with an inclined opening pointing to the flow slowing groove 32, one end of the flow slowing groove 32 is fixed on the inner wall of the flow equalizing pipe, one side opening of the top surface of the flow slowing groove 32 close to the flow equalizing pipe is used for feeding, the free end of the flow slowing groove is inclined downwards, the included angle between the axis and the horizontal direction is 20-40 degrees, the flow slowing grooves 32 are multiple, the opening of the flow slowing groove 32 positioned at the uppermost part is communicated with the discharging opening of the flow guide groove 31, the free end of the flow slowing groove 32 positioned downwards at one time is opposite to the direction of the free end of the flow slowing groove 32 at the upper side, the free end of the flow slowing groove positioned at the upper side is positioned, finally, the purpose of equalizing the flow rate is achieved.

Still include quantitative unloading pipe 40, quantitative unloading pipe 40's effect lets the unloading of metal powder intermittent type nature to the screen (ing) machine, because the screen cloth when the screening, the material just spills on the screen cloth, needs the certain time to let the material disperse, just can effectual screening, especially first order screen cloth, the material if lasting the unloading, can delay the material dispersion, reduces screening efficiency, and leads to the screen cloth to warp easily, consequently designs a quantitative unloading pipe 40, lets the unloading of metal powder intermittent type. A plurality of tension springs are fixed on the inner wall of the quantitative blanking pipe 40, the bottom ends of the tension springs are fixedly connected with a hanging plate 42, the hanging plate 42 is oval, the included angle between the plane of the hanging plate 42 and the axis of the blanking pipe 40 is 15-30 degrees, under the condition that no material is pressed, an oval convex ring on the inner wall of the blanking pipe 40 is tightly attached to the upper surface of the hanging plate 42, and the protruding width of the convex ring is 2-3 mm. Therefore, the metal powder falls on the hanging plate 42, after a certain weight is accumulated, the bottom of the inclined part is opened first, and the material falls, so that the purpose of intermittent blanking is achieved.

In order to ensure that the material is discharged relatively uniformly, the bottom end of the discharging pipe 40 is provided with an oblique opening, the oblique direction of the oblique opening is opposite to the oblique direction of the hanging plate, a reverse discharging plate 50 is fixed at the bottom side of the oblique opening through a coil spring 51, the restoring force of the coil spring can be adjusted to be smaller, and the material can be ensured to pass smoothly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.