CN219186510U

CN219186510U - Stirring paddle and coating slurry stirring device

Info

Publication number: CN219186510U
Application number: CN202223356016.5U
Authority: CN
Inventors: 司云平; 张东; 帝杰; 赵天浩
Original assignee: Honeycomb Energy Technology Shangrao Co ltd
Current assignee: Honeycomb Energy Technology Shangrao Co ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-06-16
Anticipated expiration: 2032-12-14

Abstract

The utility model provides a stirring paddle and a coating slurry stirring device, wherein the stirring paddle comprises a main body with a shaft hole, a bottom paddle and a side paddle which are arranged on the main body, and an inclined paddle which is arranged on the side paddle; the side paddles comprise two L-shaped side paddles symmetrically arranged on the main body, and the symmetrical centers of the two side paddles are consistent with the axis of the shaft hole; the inclined paddles comprise inclined paddles arranged on two sides of the side paddles, two ends of each inclined paddle are respectively connected to the same side of the two side paddles, and two ends of each inclined paddle are respectively located at different height positions on the two side paddles. According to the stirring paddle, the bottom paddle, the side paddle and the inclined paddle are arranged, and the bottom paddle, the side paddle and the inclined paddle are matched, so that the stirring of materials is more fully and uniformly realized, and the stirring paddle has a good use effect.

Description

Stirring paddle and coating slurry stirring device

Technical Field

The utility model relates to the technical field of power battery manufacturing, in particular to a stirring paddle. The utility model also relates to a coating slurry stirring device provided with the stirring paddle.

Background

Due to new technical development of lithium ion batteries in recent years, double-layer die head coating has become a trend, and is a key device capable of improving the stability of pole pieces, the quality of products and the yield. The slurry is a high viscosity fluid, and its stirring sufficiency plays an important role in coating quality.

The existing feeding stirring paddles are difficult to sufficiently stir the slurry, the slurry is insufficiently stirred, the technological parameters of the slurry cannot be achieved, scratches are easily formed on the pole pieces when the lips of the double-layer coating machine are blocked by particles, the surface density difference between the upper coating layer and the lower coating layer is large, and the problem of unqualified surface density is raised.

In addition, the clearance between the lower part of the stirring paddle and the stirring barrel is larger, the stirring capability of attaching a large number of air pockets on the back surface of the stirring paddle is insufficient, all the slurry in the barrel cannot be fully stirred, and the slurry is single in stirring, so that the slurry is unqualified in fluidity failure viscosity and the production efficiency is influenced when the heights are inconsistent, and unnecessary waste is generated.

Disclosure of Invention

In view of the above, the present utility model aims to provide a stirring paddle, so as to improve the uniformity of stirring materials.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a stirring paddle comprises a main body with a shaft hole, a bottom paddle and a side paddle which are arranged on the main body, and an inclined paddle which is arranged on the side paddle;

the side paddles comprise two L-shaped side paddles symmetrically arranged on the main body, and the symmetry centers of the two side paddles are consistent with the axis of the shaft hole;

the inclined paddles comprise inclined paddles arranged on two sides of the side paddles, two ends of each inclined paddle are respectively connected to the same side of the two side paddles, and two ends of each inclined paddle are respectively located at different height positions on the two side paddles.

Further, the inclined blades are arc-shaped and extend obliquely, and the projection shape of the two inclined blades on the cross section of the main body is elliptical.

Further, the projections of the two side paddles on the cross section of the main body are located on the long axis a of the ellipse.

Further, the bottom paddle comprises two bottom paddles which are arranged oppositely and extend along the radial direction of the main body, and the projection of the two bottom paddles on the cross section of the main body is positioned on the short axis b of the ellipse.

Further, a=2b is satisfied between the major axis a and the minor axis b of the ellipse, where a is not equal to b.

Further, the bottom blade comprises a blade body, the blade tip and the blade root of which lie in planes which are twisted in opposite directions.

Compared with the prior art, the utility model has the following advantages:

according to the stirring paddle, the inclined paddle is arranged, so that the upper layer and the lower layer of materials can be driven to be mixed and stirred, the lower layer of materials can be conveniently stirred through the arranged bottom paddle, and the bottom paddle, the inclined paddle and the side paddles are matched, so that the materials can be stirred integrally, the materials are stirred more fully and uniformly, and a good using effect is achieved.

In addition, the projection shape of two slope paddles on the main part cross section is oval, can be in the main part rotation in-process, through the rotation orbit of two slope paddles, stirring material that can be better for the material is more even. And through the concentric and simultaneous rotary motion from top to bottom of two slope paddles and two bottom paddles, can carry out more abundant stirring to the material, especially when stirring coating thick liquids, do benefit to the viscosity and the activity of assurance thick liquids.

Another object of the present utility model is to provide a coating slurry stirring device having a stirring tank, wherein a stirring shaft in the stirring tank is provided with the stirring paddle as described above.

Further, a liquid level detection device for monitoring the liquid level in the stirring barrel is arranged in the stirring barrel.

Further, a speed detection device for detecting the rotation speed of the stirring paddle is arranged on the stirring shaft.

Further, a pressure detection device for monitoring the slurry pressure in the stirring barrel is arranged in the stirring barrel, and/or a temperature detection device for detecting the slurry temperature of the slurry barrel is arranged in the stirring barrel.

According to the coating slurry stirring device, the stirring paddles are used, so that the stirring uniformity of the slurry can be improved, the viscosity and activity of the slurry are ensured, and the coating quality is improved.

Moreover, through the liquid level detection device who sets up, can be convenient for realize automatic supplementary thick liquids, do benefit to and promote automated production. The speed detection device, the pressure detection device and the temperature detection device are beneficial to monitoring the rotation speed of the stirring paddle and the pressure and the temperature of the slurry in real time, and can further facilitate automatic production.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a perspective view of a stirring paddle according to an embodiment of the utility model;

FIG. 2 is a front view of a paddle according to an embodiment of the utility model;

FIG. 3 is a top view of a paddle according to an embodiment of the utility model;

FIG. 4 is a cross-sectional view taken in the direction A-A of FIG. 2;

reference numerals illustrate:

100. a main body; 101. a bottom blade; 102. side paddles; 103. tilting the blade; 10. and the shaft hole.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be noted that, if terms indicating an orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. are presented, they are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, if any, are also used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, in the description of the present utility model, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

This embodiment relates to a stirring rake to can promote the abundant homogeneity of material stirring.

In the overall structure, the stirring paddle of the present embodiment mainly includes a main body 100 having a shaft hole 10, and bottom and side paddles provided on the main body 100, and a diagonal paddle provided on the side paddle, as shown in fig. 1 to 4. Wherein the main body 100 is connected to the stirring shaft through the shaft hole 10. The side paddle includes two side paddles 102 in an L-shape symmetrically arranged on the main body 100, and the center of symmetry of the side paddles 102 coincides with the axis of the shaft hole 10. The inclined paddles specifically include inclined paddles 103 disposed on two sides of the side paddles 102, two ends of each inclined paddle 103 are respectively connected to the same side of the two side paddles 102, and two ends of each inclined paddle 103 are respectively located at different height positions on the two side paddles 102.

In this structure, oblique oar can drive the upper and lower floor of material and mix the stirring, and the stirring to lower floor's material is convenient for to end oar, and end oar and oblique oar and the cooperation of side oar can carry out the stirring of whole material moreover for material stirring's more abundant even, and fine result of use has.

In detail, as also described above, the stirring paddle includes a main body 100 having a shaft hole 10, and the main body 100 has a cylindrical shape, as shown in fig. 1 to 4. The bottom paddle and the side paddles are fixedly connected in the circumferential direction of the main body 100, and the side paddles comprise two side paddles 102 which are symmetrically arranged and are in an L shape, the two L-shaped side paddles 102 are connected with the main body 100 to form a U shape, and the symmetry centers of the two side paddles 102 are consistent with the axis of the shaft hole 10. The two side paddles 102 thus provided facilitate adequate agitation of the material near the inner wall of the mixing drum.

The inclined paddles of the present embodiment include inclined paddles 103 fixedly connected to both sides of a side paddle 102, and as a preferred embodiment, each inclined paddle 103 of the present embodiment has an arc shape extending obliquely, and the projection shape of the two inclined paddles 103 on the cross section of the main body 100 has an elliptical shape. In this way, in the rotation process of the two inclined blades 103, the sufficient uniformity of stirring the materials can be further improved.

For convenience of description and distinction, the two inclined blades 103 are respectively named as a first inclined blade and a second inclined blade. The two ends of the first inclined blade are respectively connected to the two side blades 102, and the two ends of the first inclined blade are respectively connected to different height positions on the two side blades 102. The second inclined blade and the second inclined blade are respectively arranged at two sides of the inclined blade. The two ends of the second inclined blade are also connected to the two side blades 102, respectively, and preferably, the two ends of the second inclined blade are also connected to the two side blades 102 at different height positions, respectively. As shown in fig. 1, one end of the first inclined blade located at a higher position and one end of the second inclined blade located at a lower position are connected to both sides of one of the side blades 102, respectively. One end of the second inclined blade located at a lower position and one end of the second inclined blade located at a higher position are connected to both sides of the other side blade 102, respectively.

The bottom blade of the present embodiment is structured, as an exemplary structure, to include two bottom blades 101 arranged in opposition extending in the radial direction of the main body 100, the bottom blades 101 including blade bodies whose blade tips and blade roots lie in planes that are twisted in opposite directions. Therefore, when the materials are stirred, the materials can be turned over, and the stirring effect is improved.

It will be understood, of course, that the bottom paddle of the present embodiment may also employ a flat blade body in addition to the above-described structural form, and the number of blade bodies may be three, four or any number.

Also, in the present embodiment, the projections of the both side paddles 102 on the cross section of the main body 100 are located on the major axis a of the ellipse. The projections of the two bottom paddles 101 onto the cross-section of the body 100 are located on the minor axis b of the ellipse. In this way, in the rotation process of the main body 100, the materials can be better stirred through the rotation track of the two inclined blades 103, so that the materials are more uniform.

Also, as a further preferred embodiment, a=2b is satisfied between the major axis a and the minor axis b of the formed elliptical shape, where a is not equal to b. Whereby the material can be further and more sufficiently stirred.

The stirring rake of this embodiment is through the end oar, side oar and the oblique oar that set up to and end oar, side oar and the cooperation of oblique oar three for material stirring's more abundant even, and have fine result of use.

In addition, the present embodiment also relates to a coating slurry stirring device having a stirring tank in which the stirring shaft is provided with the stirring paddle as described above. By using the stirring paddle, the sufficiency of stirring the slurry can be improved, and the problem of unqualified viscosity of the slurry can be solved.

As a preferred implementation manner of this embodiment, a liquid level detection device for monitoring the liquid level in the stirring barrel is arranged in the stirring barrel of this embodiment. The liquid level detection device can adopt a liquid level meter in the prior art, and can correspondingly set a feeding liquid level meter and a returning liquid level meter according to actual demands, so that automatic slurry supplementing is realized under the condition of foundation liquid level, and automatic production is realized.

In this embodiment, a speed detecting device for detecting the rotation speed of the stirring paddle is further provided on the stirring shaft. Meanwhile, as a further preferable embodiment, a pressure detecting device for monitoring the slurry pressure in the barrel and a temperature detecting device for detecting the slurry temperature of the slurry barrel are arranged in the stirring barrel. The rotating speed of the stirring paddle can be detected in real time, and the pressure and the temperature of the slurry can be detected in real time. Thereby further facilitating automated production.

It should be noted that, the speed detecting device of the present embodiment may use a speed sensor in the prior art, the temperature detecting device may use a temperature sensor in the prior art, and the pressure detecting device may use a pressure sensor in the prior art. In addition, the liquid level meter, the speed sensor, the temperature sensor and the pressure sensor can be selected according to actual requirements.

The coating slurry stirring device of the embodiment can improve the uniformity of slurry stirring by adopting the stirring paddles, and ensure the viscosity and activity of the slurry, thereby being beneficial to improving the coating quality. Moreover, through setting up liquid level detection device, speed detection device, pressure detection device and temperature detection device, be favorable to carrying out real-time supervision to the rotational speed of stirring rake and the liquid level, the pressure, the temperature of thick liquids, and can further do benefit to automated production, improve coating efficiency.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A stirring paddle, characterized in that:

comprises a main body (100) with a shaft hole (10), a bottom paddle and a side paddle which are arranged on the main body (100), and a diagonal paddle which is arranged on the side paddle;

the side paddle comprises two L-shaped side paddles (102) symmetrically arranged on the main body (100), and the symmetrical centers of the two side paddles (102) are consistent with the axis of the shaft hole (10);

the inclined paddles comprise inclined paddles (103) arranged on two sides of the side paddles (102), two ends of each inclined paddle (103) are respectively connected to the same side of the two side paddles (102), and two ends of each inclined paddle (103) are respectively located at different height positions on the two side paddles (102).

2. The stirring paddle of claim 1, wherein:

the inclined blades (103) are in arc shapes extending obliquely, and the projection shape of the two inclined blades (103) on the cross section of the main body (100) is elliptical.

3. The stirring paddle of claim 2, wherein:

the projections of the two side blades (102) on the cross section of the main body (100) are located on the long axis a of the ellipse.

4. A stirring paddle as set forth in claim 3, wherein:

the bottom paddle comprises two bottom paddles (101) arranged opposite each other extending radially along the main body (100), the projections of the two bottom paddles (101) on the cross section of the main body (100) being located on the minor axis b of the ellipse.

5. The stirring paddle of claim 4, wherein:

a=2b is satisfied between the major axis a and the minor axis b of the ellipse, where a is not equal to b.

6. The stirring paddle of claim 4, wherein:

the bottom blade (101) comprises a blade body whose blade tip and blade root lie in planes that are twisted in opposite directions.

7. A coating slurry stirring device, characterized in that:

the coating slurry stirring device is provided with a stirring barrel, and a stirring paddle of any one of claims 1 to 6 is arranged on a stirring shaft in the stirring barrel.

8. The coating paste agitation apparatus as recited in claim 7, wherein:

a liquid level detection device for monitoring the liquid level in the stirring barrel is arranged in the stirring barrel.

9. The coating paste agitation apparatus as recited in claim 7, wherein:

the stirring shaft is provided with a speed detection device for detecting the rotation speed of the stirring paddle.

10. The coating paste agitation apparatus as recited in claim 7, wherein:

the stirring barrel is internally provided with a pressure detection device for monitoring the slurry pressure in the barrel, and/or the stirring barrel is internally provided with a temperature detection device for detecting the slurry temperature of the slurry barrel.