CN214917186U

CN214917186U - Powder injection device

Info

Publication number: CN214917186U
Application number: CN202120283954.3U
Authority: CN
Inventors: 朱占松; 苏俊有
Original assignee: Foshan Sanfu Coating Technology Co ltd
Current assignee: Foshan Sanfu Coating Technology Co ltd
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-11-30
Anticipated expiration: 2031-02-01

Abstract

The utility model relates to a powder injection apparatus, its technical scheme main points are: the method comprises the following steps: the powder spraying device comprises a hopper for containing powder, a mixing pipe, a discharge needle for charging the powder with negative electricity, a first conductive ring, a diffusion plate for diffusing the powder with negative electricity to the periphery and a nozzle for outputting compressed gas; the funnel is connected with the outer side of the mixing pipe; the funnel is communicated with the mixing pipe; the first conducting ring is arranged at one end of the mixing pipe; the nozzle is inserted at one end of the mixing tube; the first conducting ring is abutted with the nozzle; the discharge needle is arranged in the mixing tube; one end of the discharge needle is fixedly connected with the first conductive ring, and the other end of the discharge needle is fixedly connected with the diffusion plate; this application has more even and convenient to detach's of spun powder effect.

Description

Powder injection device

Technical Field

The utility model relates to an injection apparatus technical field, more specifically say, it relates to a powder injection apparatus.

Background

At present, electrostatic spraying is a coating method which utilizes the corona discharge principle to charge atomized coating under the action of a high-voltage direct-current electric field and is adsorbed on the surface of a positively charged substrate for discharge; atomized paint generally refers to powder that spreads uniformly, the more uniformly the powder spreads, the better the atomization and the more uniformly the paint is applied.

In addition, in the process of powder diffusion, a powder spraying device is generally required to spray powder, but it is difficult to uniformly diffuse the sprayed powder and the conventional powder spraying device is difficult to disassemble and is inconvenient to clean, so that it is necessary to develop a powder spraying device which can spray powder more uniformly and is convenient to disassemble.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a powder injection apparatus has more even and convenient to detach's of spun powder functional advantage.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a powder spray device comprising: the powder spraying device comprises a hopper for containing powder, a mixing pipe, a discharge needle for charging the powder with negative electricity, a first conductive ring, a diffusion plate for diffusing the powder with negative electricity to the periphery and a nozzle for outputting compressed gas; the funnel is connected with the outer side of the mixing pipe; the funnel is communicated with the mixing pipe; the first conducting ring is arranged at one end of the mixing pipe; the nozzle is inserted at one end of the mixing tube; the first conducting ring is abutted with the nozzle; the discharge needle is arranged in the mixing tube; one end of the discharge needle is fixedly connected with the first conductive ring, and the other end of the discharge needle is fixedly connected with the diffusion plate.

Optionally, the mixing tube comprises: the outer pipe, the inner pipe and the connecting block; the connecting block is arranged on the peripheral surface of the outer pipe; the outer circumferential surface of the inner pipe is fixedly connected with the inner circumferential surface of the outer pipe; the funnel is in threaded connection with the connecting block; the funnel is communicated with the outer pipe; the outer tube and the inner tube are both connected with the discharge needle; the first conducting ring is arranged at one end of the outer pipe; the nozzle is inserted with one end of the outer tube.

Optionally, the discharge needle includes: a straight portion and a bent portion; one end of the straight line part is fixedly connected with the first conductive ring, and the other end of the straight line part is fixedly connected with the bent part; the outer pipe is provided with a first through hole; the inner pipe is provided with a second through hole; the first through hole is communicated with the second through hole; the straight line part is respectively arranged in the first through hole and the second through hole.

Optionally, both ends of the inner tube are bucket-shaped.

Optionally, the nozzle comprises: the spraying part, the fixing part, the conductive spring and the second conductive ring; the spraying part is provided with a conveying hole for conveying the compressed gas; the fixed part is fixedly connected with the peripheral surface of the injection part; the second conducting ring is arranged on the outer side of the fixing part; the spraying part is inserted with one end of the mixing pipe; the conductive spring is arranged on the fixing part; one end of the conductive spring is fixedly connected with the second conductive ring, and the other end of the conductive spring is abutted to the first conductive ring.

Optionally, one end of the fixing part is provided with an insertion groove; the conductive spring is arranged in the insertion groove; one end of the mixing tube is inserted in the insertion groove.

To sum up, the utility model discloses following beneficial effect has:

1. through the arrangement of the diffusion plate, after the powder is sprayed out of the mixing pipe, the powder sprayed out of the mixing pipe is diffused all around more uniformly, the atomization effect is better, and the spray nozzle is convenient to disassemble through the insertion connection of the spray nozzle and the mixing pipe, so that the spray nozzle and the mixing pipe are convenient to clean;

2. through the arrangement of the inner tube, the excessive amount of the powder sprayed at one time is prevented, the uniform amount of the powder sprayed in continuous time is ensured, and the sprayed powder can be further uniformly sprayed to the periphery;

3. through the arrangement of the first through hole and the second through hole, the linear part of the discharge needle is not contacted with the powder in the mixing tube, so that the powder is prevented from carrying excessive electricity, and the electrification amount of the sprayed powder is controlled.

Drawings

FIG. 1 is an assembly view of the present invention;

fig. 2 is an exploded schematic view of the present invention;

fig. 3 is a cross-sectional view of the present invention.

In the figure: 1. a funnel; 2. a mixing tube; 21. an outer tube; 22. an inner tube; 23. connecting blocks; 3. a discharge needle; 31. a straight portion; 32. a bending part; 4. a first conductive ring; 5. a diffusion plate; 6. shooting mouth; 61. an injection section; 611. a delivery orifice; 62. a fixed part; 621. inserting grooves; 63. a conductive spring; 64. a second conductive ring.

Detailed Description

In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for descriptive purposes only and are not intended to indicate or imply that the referenced device or element must be in a particular orientation, constructed and operated, and therefore should not be construed as limiting the present invention.

The present invention will be described in detail with reference to the accompanying drawings and examples.

The utility model provides a powder injection apparatus, as shown in fig. 1-3, include: a funnel 1 for holding powder, a mixing tube 2, a discharge needle 3 for negatively charging the powder, a first conductive ring 4, a diffusion plate 5 for diffusing the negatively charged powder to the surroundings, and a nozzle 6 for outputting compressed gas; the funnel 1 is connected with the outer side of the mixing pipe 2; the funnel 1 is communicated with the mixing pipe 2; the first conducting ring 4 is arranged at one end of the mixing pipe 2; one end of the nozzle 6 is inserted into one end of the mixing tube 2; the first conductive ring 4 is abutted with a nozzle 6; the discharge needle 3 is arranged in the mixing tube 2; the other end of the mixing pipe 2 is provided with a discharge hole for outputting powder with negative electricity; one end of the discharge needle 3 is fixedly connected with the first conducting ring 4, and the other end of the discharge needle extends out of the discharge hole of the mixing tube 2 and is fixedly connected with the diffusion plate 5.

In practical application, one end of the nozzle 6 is inserted into one end of the mixing tube 2, the other end of the nozzle is connected with a compressed gas inlet tube, in the using process, powder is firstly input from an inlet of the funnel 1, then the powder enters the cavity of the mixing tube 2, the compressed gas inlet tube conveys the compressed gas to the nozzle 6, the nozzle 6 conveys the compressed gas to the cavity of the mixing tube 2, the compressed gas entering the mixing tube 2 drives the powder in the mixing tube 2 to move towards a discharge port of the mixing tube 2, so that the powder in the mixing tube 2 is sprayed out, in the process, the discharge needle 3 provides negative electricity for the sprayed powder, so that the powder is charged with negative electricity, through the arrangement of the diffusion plate 5, after the powder is sprayed out from the discharge port of the mixing tube 2, the powder sprayed out from the discharge port of the mixing tube 2 is diffused all around more uniformly, the atomization effect is better, and the nozzle 6 is inserted into the mixing tube 2, the removal of the nozzle 6 and thus the cleaning of the nozzle 6 and the mixing tube 2 is facilitated.

Further, as shown in fig. 2, the mixing pipe 2 includes: an outer tube 21, an inner tube 22 and a connecting block 23; the connecting block 23 is arranged on the outer circumferential surface of the outer tube 21; the outer circumferential surface of the inner pipe 22 is fixedly connected with the inner circumferential surface of the outer pipe 21; the funnel 1 is in threaded connection with the connecting block 23; the funnel 1 is communicated with an outer tube 21; the outer tube 21 and the inner tube 22 are both connected with the discharge needle 3; the first conductive ring 4 is arranged at one end of the outer tube 21; one end of the nozzle 6 is inserted with one end of the outer tube 21; the inner diameter of the inner tube 22 is smaller than the inner diameter of the outer tube 21.

In the present application, a space is left between the inner tube 22 and the nozzle 6, so that the powder input from the funnel 1 enters the space, that is, the powder enters the outer tube 21, then the nozzle 6 outputs compressed gas to the powder in the space, the powder in the space is conveyed to the inner tube 22, and the powder in the space is ejected from the discharge port through the inner tube 22; through the arrangement of the inner tube 22, the inner diameter of the inner tube 22 is smaller than that of the outer tube 21, so that the spraying amount of the powder in the same time is controlled, the excessive powder sprayed at one time is prevented, the uniform powder sprayed in continuous time is ensured, and the sprayed powder can be further uniformly sprayed to the periphery; through the threaded connection of funnel 1 and connecting block 23, the funnel 1's of being convenient for dismantlement to be convenient for wash funnel 1.

Further, as shown in fig. 2, the discharge needles 3 include: straight portions 31 and bent portions 32; one end of the straight line part 31 is fixedly connected with the first conductive ring 4, and the other end is fixedly connected with the bent part 32; the outer tube 21 is provided with a first through hole; a second through hole is formed in the inner tube 22; the first through hole is communicated with the second through hole; the straight line part 31 is respectively arranged in the first through hole and the second through hole; the first through hole and the second through hole are axially arranged.

Specifically, the other end of the straight portion 31 passes through the first through hole and the second through hole to be fixedly connected with the bent portion 32; through the setting of first through-hole and second through-hole for the straight line portion 31 of discharge needle 3 does not contact with the powder in the hybrid tube 2, and at the in-process of powder blowout discharge gate, thereby the powder just contacts with the portion 32 of bending and is electrified negatively, prevents that the powder from having too much electric quantity, has controlled the electrified volume of blowout powder.

Further, as shown in fig. 2, both ends of the inner tube 22 are bucket-shaped; the bucket-shaped setting through inner tube 22 both ends for the opening diameter at inner tube 22 both ends is crescent from inside to outside, and under the condition of inner tube 22 was given with the powder transport in the outer tube 21 to the compressed gas of spouting mouth 6 output, the powder of being convenient for got into the inside of inner tube 22 prevented to have more powder to remain on the outer tube 21, and under the condition of powder blowout inner tube 22, the one end opening that inner tube 22 is close to diffuser plate 5 increased, the diffusion of the powder of being more convenient for.

Further, as shown in fig. 2 and 3, the nozzle 6 includes: the ejection part 61, the fixing part 62, the conductive spring 63, and the second conductive ring 64; the injection part 61 is provided with a delivery hole 611 for delivering the compressed gas; the fixing part 62 is fixedly connected with the outer peripheral surface of the injection part 61; the second conductive ring 64 is disposed outside the fixing portion 62; the injection part 61 is inserted with one end of the mixing pipe 2; the conductive spring 63 is arranged on the fixing part 62; one end of the conductive spring 63 is fixedly connected to the second conductive ring 64, and the other end thereof abuts against the first conductive ring 4.

Specifically, the injection part 61 is inserted into the outer tube 21 to realize the insertion of the nozzle 6 and the outer tube 21, after the insertion of the nozzle 6 and the outer tube 21 is completed, the first conductive ring 4 abuts against the conductive spring 63, in the using process, the compressed gas is conveyed to the powder in the outer tube 21 through the conveying hole 611, the powder in the outer tube 21 is conveyed to the inner tube 22, so that the powder is sprayed out of the inner tube 22, and then the powder is diffused all around through the discharge needle 3 and the diffusion plate 5; after the second conducting ring 64 is electrified, the first conducting ring 4 is electrically connected with the second conducting ring 64 through the arrangement of the conducting spring 63, the first conducting ring 4 is fixedly connected with the discharge needles 3, so that the discharge needles 3 are electrified, and the electrification of the powder sprayed out from the discharge hole of the outer tube 21 is realized.

Further, as shown in fig. 2, one end of the fixing portion 62 is provided with a plugging groove 621; the conductive spring 63 is arranged in the insertion groove 621; one end of the outer tube 21 is inserted into the insertion groove 621; after the one end of outer tube 21 is pegged graft in inserting groove 621, first conducting ring 4 is located inserting groove 621 completely, and first conducting ring 4 and electrically conductive spring 63 butt, setting through inserting groove 621, after penetrating mouth 6 and outer tube 21 and pegging graft, electrically conductive spring 63 and first conducting ring 4 all are located inserting groove 621 completely, the protection to electrically conductive spring 63 and first conducting ring 4 has been strengthened, the conduction of electrically conductive spring 63 and first conducting ring 4 has been guaranteed, and inserting groove 621's setting, still make the grafting of penetrating mouth 6 and outer tube 21 more stable.

The powder injection device of the utility model, through the arrangement of the diffusion plate 5, after the powder is sprayed out from the discharge port of the mixing tube 2, the powder sprayed out from the discharge port of the mixing tube 2 is diffused all around more evenly, the atomization effect is better, and through the splicing of the nozzle 6 and the mixing tube 2, the nozzle 6 is convenient to disassemble, thereby the nozzle 6 and the mixing tube 2 are convenient to clean; the arrangement of the inner tube 22 prevents the excessive amount of powder sprayed at one time, ensures the uniform amount of the powder sprayed in continuous time, and further ensures that the sprayed powder can be sprayed to the periphery more uniformly; through the arrangement of the first through hole and the second through hole, the straight line part 31 of the discharge needle 3 is not contacted with the powder in the mixing tube 2, the powder is prevented from being charged with excessive electricity, and the charge quantity of the sprayed powder is controlled.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A powder spray device, comprising: the powder spraying device comprises a hopper for containing powder, a mixing pipe, a discharge needle for charging the powder with negative electricity, a first conductive ring, a diffusion plate for diffusing the powder with negative electricity to the periphery and a nozzle for outputting compressed gas; the funnel is connected with the outer side of the mixing pipe; the funnel is communicated with the mixing pipe; the first conducting ring is arranged at one end of the mixing pipe; the nozzle is inserted at one end of the mixing tube; the first conducting ring is abutted with the nozzle; the discharge needle is arranged in the mixing tube; one end of the discharge needle is fixedly connected with the first conductive ring, and the other end of the discharge needle is fixedly connected with the diffusion plate.

2. The powder injection apparatus of claim 1, wherein the mixing tube comprises: the outer pipe, the inner pipe and the connecting block; the connecting block is arranged on the peripheral surface of the outer pipe; the outer circumferential surface of the inner pipe is fixedly connected with the inner circumferential surface of the outer pipe; the funnel is in threaded connection with the connecting block; the funnel is communicated with the outer pipe; the outer tube and the inner tube are both connected with the discharge needle; the first conducting ring is arranged at one end of the outer pipe; the nozzle is inserted with one end of the outer tube.

3. The powder injection apparatus of claim 2, wherein the discharge needle comprises: a straight portion and a bent portion; one end of the straight line part is fixedly connected with the first conductive ring, and the other end of the straight line part is fixedly connected with the bent part; the outer pipe is provided with a first through hole; the inner pipe is provided with a second through hole; the first through hole is communicated with the second through hole; the straight line part is respectively arranged in the first through hole and the second through hole.

4. The powder injection apparatus of claim 2, wherein both ends of the inner tube are bucket-shaped.

5. Powder spraying apparatus as claimed in any one of claims 1 to 4, wherein the nozzle comprises: the spraying part, the fixing part, the conductive spring and the second conductive ring; the spraying part is provided with a conveying hole for conveying the compressed gas; the fixed part is fixedly connected with the peripheral surface of the injection part; the second conducting ring is arranged on the outer side of the fixing part; the spraying part is inserted with one end of the mixing pipe; the conductive spring is arranged on the fixing part; one end of the conductive spring is fixedly connected with the second conductive ring, and the other end of the conductive spring is abutted to the first conductive ring.

6. The powder spray apparatus of claim 5, wherein one end of the fixing portion is provided with a socket; the conductive spring is arranged in the insertion groove; one end of the mixing tube is inserted in the insertion groove.