CN214809994U

CN214809994U - Powder continuous mixing's conveyor

Info

Publication number: CN214809994U
Application number: CN202120356819.7U
Authority: CN
Inventors: 李国敏; 王锐明; 王力展
Original assignee: Guangdong Tianniang Intelligent Equipment Co ltd
Current assignee: Guangdong Tianniang Intelligent Equipment Co ltd
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-11-23
Anticipated expiration: 2031-02-08

Abstract

The utility model relates to the technical field of powder mixing and conveying, and discloses a conveying device for continuously mixing powder, which comprises a shell, a driving mechanism, a rotating shaft, a forward helical blade and a reverse helical blade; the reverse helical blade is arranged on the periphery of the rotating shaft and has the opposite rotation direction to the forward helical blade; the reverse helical blade is connected with the rotating shaft and/or the forward helical blade; and taking a plane vertical to the rotating shaft as a reference plane, wherein the projection area of the reverse helical blade on the reference plane is smaller than that of the forward helical blade on the projection plane. The utility model discloses simple structure, based on the reverse helical blade low cost that auger conveyor structure basis installed additional, and with original forward helical blade sharing power, need not increase the stirring actuating mechanism specially, consequently almost not obvious incremental cost and energy consumption, nevertheless have concurrently and carry and stir mixed function, can carry out the continuous stirring to the powder in transportation process and mix, can not interrupt serialization production, and mix effectually.

Description

Powder continuous mixing's conveyor

Technical Field

The utility model relates to a powder mixes and carries technical field, especially relates to a conveyor of powder continuous mixing.

Background

Powder conveying equipment in the prior art is generally an auger conveyor, and the auger conveyor drives powder to move and propel through a rotating helical blade.

In some process steps, different powders fed into the conveying equipment are required to be fully mixed in the conveying process.

The auger conveyor mainly plays a role in conveying, and although the rotary propelling conveying mode of the auger conveyor objectively plays a certain role in stirring and mixing the powder, the mixing effect is poor.

The prior art also has the scheme that a stirring mechanism is additionally arranged on a conveying device to stir and mix the conveyed powder, and the stirring mechanism specially designed has a good stirring effect, but the cost and the energy consumption are obviously greatly increased.

Thus, improvements in the prior art are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the utility model provides a conveyor of powder continuous mixing to it is difficult to have the technical problem of carrying and stirring mixed function concurrently under the prerequisite of unobvious incremental cost and energy consumption to solve prior art's conveying equipment.

In order to achieve the above object, the present invention provides a powder continuous mixing conveying device, which comprises a housing, a driving mechanism, a rotating shaft and a forward helical blade;

a feed inlet is formed in the upper part of one end of the shell, and a discharge outlet is formed in the lower part of the other end of the shell; one end of the rotating shaft is in transmission connection with the driving mechanism, the other end of the rotating shaft extends into the shell, and the peripheral surface of the rotating shaft is provided with the forward helical blade;

the spiral blade comprises a forward spiral blade and a reverse spiral blade, wherein the forward spiral blade and the reverse spiral blade are arranged in a same plane; the reverse helical blade is arranged on the periphery of the rotating shaft and is connected with the rotating shaft and/or the forward helical blade;

and taking a plane perpendicular to the axis of the rotating shaft as a reference plane, wherein the projection area of the reverse helical blade on the reference plane is smaller than that of the forward helical blade on the reference plane.

In some embodiments of the present application, a ratio of a projected area of the reverse spiral blade on the reference plane to a projected area of the forward spiral blade on the reference plane is between 0.3 and 0.7.

In some embodiments of the present application, the reverse helical blade is fixedly connected to the forward helical blade, and the reverse helical blade is a strip blade.

In some embodiments of the present application, a transverse vane is disposed between the bottom surface of the front circle of vanes and the top surface of the back circle of vanes of the forward spiral vane.

In some embodiments of the present application, the angle formed by the transverse blade and the axial direction of the rotating shaft is 0 to 45 °.

In some embodiments of the present application, the horizontal blade with the contained angle that the axial of rotation axis formed is 0, just the horizontal blade is the strip shaped plate.

In some embodiments of the present application, a plane where a line connecting a surface of the transverse blade and the axis of the rotating shaft is located forms an angle of 0 to 45 ° with the surface.

In some embodiments of the present application, an included angle between the transverse blade and an axis of the rotating shaft is 0 °, and a ratio of a vertical distance from the transverse blade to the axis of the rotating shaft to a vertical distance from a side of the helical blade to the axis of the rotating shaft is 0.6-1.

In some embodiments of the present application, the plurality of transverse blades are provided at intervals in the circumferential direction of the helical blade, and two of the transverse blades adjacent to each other along the axis of the rotating shaft are not located on the same straight line.

The application also provides another powder continuous mixing conveying device which comprises a shell, a driving mechanism, a rotating shaft and a forward helical blade;

the number of the reverse helical blades is less than that of the forward helical blades.

The embodiment of the utility model provides a conveyor of powder continuous mixing compares with prior art, and its beneficial effect lies in:

the utility model discloses powder continuous mixing's conveyor, simple structure, based on the reverse helical blade low cost that auger conveyor structure basis installed additional, and with original forward helical blade sharing power, need not increase the stirring actuating mechanism specially, consequently hardly obvious incremental cost and energy consumption have transport and stirring mixed function concurrently, can carry out the continuous stirring to the powder in transportation process and mix, can not interrupt serialization production, and mix effectually.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic axial sectional structural view of a powder continuous mixing conveying device according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 1 of another embodiment;

in the figure, 1, a housing; 11. a feed inlet; 12. a discharge port; 2. a drive mechanism; 3. a rotating shaft; 4. a forward helical blade; 5. a reverse helical blade; 6. and a transverse blade.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, 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 description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1 and 2, a powder continuous mixing conveying device according to a preferred embodiment of the present invention mainly includes a housing 1, a driving mechanism 2, a rotating shaft 3, a forward helical blade 4, and a reverse helical blade 5.

Specifically, two parallel feed inlets 11 are arranged at the upper part of one end of the shell 1, a discharge outlet 12 is arranged at the lower part of the other end of the shell, and powder enters from the feed inlets 11 and is conveyed to the discharge outlet 12. One end of the rotating shaft 3 is connected with the driving mechanism 2 (rotating motor) in a transmission way, the other end of the rotating shaft extends into the shell 1, and the peripheral surface of the rotating shaft 3 is provided with a forward helical blade 4.

The reverse spiral blade 5 is provided on the outer periphery of the rotary shaft 3 in the opposite direction to the forward spiral blade 4 to form a double spiral blade structure with the forward spiral blade 4. The reverse helical blade 5 may be fixedly connected to the rotating shaft 3, may be fixedly connected to the forward helical blade 4, and may be connected to both the rotating shaft 3 and the forward helical blade 4. And a plane perpendicular to the axis of the rotating shaft 3 is taken as a reference plane, and the projection area of the reverse spiral blade 5 on the reference plane is smaller than that of the forward spiral blade 4 on the reference plane, so that the powder can be conveyed forwards.

The utility model provides a conveyor that powder mixes in succession, based on current auger conveyor structure, at the reverse helical blade 5 of the opposite direction of turning of the periphery installation of rotation axis 3 and forward helical blade 4. When the rotating shaft 3 rotates, the forward helical blade 4 drives the powder to move from the feed port 11 to the discharge port 12, and the reverse helical blade 5 drives the powder to move from the discharge port 12 to the feed port 11, so that the powder overturns back and forth in the shell 1, the whole conveying speed is slowed down, the powder mixing space is greatly increased, and the stirring and mixing effects are effectively improved. And the projection area of the reverse helical blade 5 on the reference surface is smaller than that of the forward helical blade 4 on the reference surface, so that the powder can be ensured to be finally conveyed to the discharge hole 12.

The utility model provides a conveyor that powder mixes in succession, simple structure, 5 low cost of reverse helical blade who installs additional, and with 4 sharing power of forward helical blade, need not increase the stirring actuating mechanism specially, consequently hardly obvious incremental cost and energy consumption, nevertheless have transport and stirring mixed function concurrently, can carry out the continuous stirring to the powder in transportation process and mix, can not interrupt serialization production, and mix effectually.

In some embodiments of the present application, the ratio of the projected area of the reverse helical blade 5 on the reference plane to the projected area of the forward helical blade 4 on the reference plane is between 0.3 and 0.7. The larger the projection area of the reverse helical blade 5 on the reference surface is, the more the powder is conveyed backwards, the slower the conveying speed of the whole powder is, and the better the stirring and mixing effect is. In actual use, the mixing degree, the transportation speed and other factors can be comprehensively considered, and then a proper ratio is set.

In some embodiments of the present application, the reverse helical blade 5 is fixedly connected to the forward helical blade 4, and can be installed by welding or the like, so that the stability of the double helical blade structure can be effectively enhanced.

In some embodiments of the present application, the reverse helical blade 5 is a strip blade, and a gap is formed between the reverse helical blade and the rotating shaft 3, so that a space for mixing powder can be further increased. In addition, the reverse helical blade 5 is a strip-shaped blade, so that the reverse helical blade is more conveniently welded with the forward helical blade 4, and the occupied space is smaller.

In some embodiments of the present application, a transverse blade 6 is disposed between the bottom surface of the front blade circle and the top surface of the rear blade circle (i.e., between the pitches) of the forward spiral blades 4, and an included angle formed between the transverse blade 6 and the axis of the rotating shaft 3 is 0 to 45 ° (including an end point value), that is, an inclination angle between the transverse blade 6 and the rotating shaft 3 is 0 °, 5 °, 10 °, 15 °, 20 °, 30 °, or 45 °. Preferably, when the angle is 0 °, the transverse blades 6 are parallel to the rotation axis 3. The transverse blades 6 are used for transversely cutting off the mixed powder agglomerates when the forward helical blades 4 and the reverse helical blades 5 rotate to turn over the powder, so that the powder mixing chance is increased, the powder mixing is more uniform, and the stirring and mixing effects are effectively improved. Furthermore, the transverse blades 6 also have the function of reinforcing the structural connection. Reverse helical blade 5 welds on forward helical blade 4, and simultaneously through transverse fixation of transverse vane 6, it is more firm to make reverse helical blade 5, forward helical blade 4 be connected with 6 three's of transverse vane overall structure.

In some embodiments of the application, the transverse blade 6 is a strip-shaped plate, the shape and the structure are simple, materials are saved, the preparation cost is low, the strength is good, and the transverse cutting effect can be effectively guaranteed.

In some embodiments of the present application, the transverse blade 6 may also be an arc-shaped plate, which can achieve a better cutting-off effect.

Referring to fig. 3, when the transverse blade 6 is parallel to the rotating shaft 3 and the transverse blade 6 is a strip-shaped plate, an included angle B between a plane where a connecting line of a surface of the transverse blade 6 and an axis of the rotating shaft 3 is located and the plane where the surface is located is 0-45 ° (including an end point value), that is, the included angle may be 0 °, 5 °, 10 °, 15 °, 20 °, 30 °, or 45 °, wherein fig. 3 shows a case of 20 °, and fig. 2 shows a case of 0 °. When the included angle is 0 ° (fig. 2), the material that can be stirred by the transverse blades 6 of the same area is the most, and the stirring efficiency is higher, compared with the case that the included angle takes other values.

In some embodiments of the present application, the ratio of the vertical distance from the transverse blade 6 to the axis of the rotating shaft 3 to the vertical distance from the side edge of the forward spiral blade 4 to the axis of the rotating shaft 3 is 0.6-1, preferably 0.98, i.e. the transverse blade 6 is disposed near the side edge of the forward spiral blade 4, so as to ensure the transverse cutting effect while ensuring the structural strength.

In some embodiments of the present application, referring to fig. 2, the plurality of transverse blades 6 are provided at equal intervals in the circumferential direction of the forward spiral blade 4, and four transverse blades are shown in the figure. In addition, referring to fig. 1, two adjacent transverse blades 6 along the axis of the rotating shaft 3 are not located on the same straight line, that is, the arrangement positions of the transverse blades 6 between the adjacent pitches of the forward helical blade 4 are staggered, so that the transverse cutting effect is effectively further improved, and the stirring and mixing effect is further enhanced. When two adjacent transverse blades 6 are positioned on the same straight line, the scraping of the materials by the adjacent transverse blades 6 is carried out simultaneously, which is unfavorable for the stirring uniformity. This application makes two adjacent horizontal blades 6 not be located same straight line, makes adjacent horizontal blade 6 scrape the material go on simultaneously to reach the effect that improves transversely cutting off.

The utility model discloses still provide another kind of powder continuous mixing's conveyor, itself is equipped with two at least forward helical blade 4 on the rotation axis 3 of the device, can the periphery of rotation axis 3 sets up reverse helical blade 5, and reverse helical blade 5's quantity is less than forward helical blade 4, forms many helical blade structures. In this embodiment, the projection area of the reverse helical blade 5 on the reference surface may be equal to or smaller than the projection area of the forward helical blade 4 on the reference surface, and both of the two conditions can ensure that the powder is finally conveyed to the discharge port 12. The multi-helical-blade structure device of the present embodiment has a similar mixing effect to that of the above-described double-helical-blade structure device, and it is also possible to provide the transverse blades 6 between the pitches of the forward helical blades 4 as a similar alternative to the above-described double-helical-blade structure device.

In the multi-helical-blade structure device and the double-helical-blade structure device, the blades are arranged on the rotating shaft 3, the rotating shaft 3 rotates to drive the blades to rotate, the shell 1 does not move, relative rotation is realized between the blades and the shell 1, and therefore material transportation is realized. Similarly, in some possible embodiments, the blades are disposed on the rotating shaft 3, the rotating shaft 3 is fixed, and the housing 1 rotates, so that the blades and the housing 1 rotate relative to each other, thereby realizing material transportation. In this embodiment, the inlet 11 and the outlet 12 need to be adaptively set.

To sum up, the utility model provides a conveyor of powder continuous mixing, simple structure, based on 5 low cost of reverse helical blade that auger conveyor structure basis installed additional, and with 5 power of sharing of original helical blade, need not increase stirring actuating mechanism specially, consequently hardly obvious incremental cost and energy consumption have transport and stirring mixed function concurrently, can carry out the continuous stirring to the powder in transportation process and mix, can not interrupt serialization production, and mix effectually.

Further, still be equipped with a plurality of transverse blade 6 between forward helical blade 4's the pitch for transversely cut off mixed powder group when forward helical blade 4 and reverse helical blade 5 rotate upset powder, increase the chance that the powder mixes, make the powder mix more evenly, effectively improve the stirring and mix the effect.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A powder continuous mixing conveying device comprises a shell, a driving mechanism, a rotating shaft and a forward helical blade;

the method is characterized in that:

the reverse spiral blade and the forward spiral blade have opposite rotation directions; the reverse helical blade is arranged on the periphery of the rotating shaft and is connected with the rotating shaft and/or the forward helical blade;

2. The powder continuous mixing conveying device according to claim 1, wherein a ratio of a projected area of the reverse helical blade on the reference surface to a projected area of the forward helical blade on the reference surface is 0.3 to 0.7.

3. The powder continuous mixing conveying device according to claim 2, wherein the reverse helical blade is fixedly connected to the forward helical blade, and the reverse helical blade is a strip blade.

4. The powder continuous mixing conveying device according to claim 1, wherein a transverse blade is arranged between the bottom surface of the front circle of blades and the top surface of the rear circle of blades of the forward spiral blade.

5. The powder continuous mixing conveying device according to claim 4, wherein an included angle formed by the transverse blade and the axial direction of the rotating shaft is 0-45 °.

6. The powder continuous mixing conveying device according to claim 4, wherein an included angle formed by the transverse blade and the axial direction of the rotating shaft is 0 degree, and the transverse blade is a strip-shaped plate.

7. The powder continuous mixing conveying device according to claim 6, wherein a plane on which a line connecting a surface of the transverse blade and the axis of the rotating shaft is located forms an angle of 0 to 45 ° with the surface.

8. The powder continuous mixing conveying device according to claim 6, wherein an included angle between the transverse blade and the axis of the rotating shaft is 0 °, and a ratio of a vertical distance from the transverse blade to the axis of the rotating shaft to a vertical distance from a side edge of the helical blade to the axis of the rotating shaft is 0.6-1.

9. The powder continuous mixing conveyor device according to any one of claims 4 to 8, wherein a plurality of the transverse blades are provided at intervals in a circumferential direction of the helical blade, and two of the transverse blades adjacent to each other along the axis of the rotating shaft are not located on the same straight line.

10. A powder continuous mixing conveying device comprises a shell, a driving mechanism, a rotating shaft and at least two forward spiral blades;

the method is characterized in that: