CN116272525A - Kneading machine - Google Patents

Abstract

The present application provides kneaders. The kneader includes kneading barrels and a first stirring assembly. The kneading cylinder comprises a bottom wall, a top wall and a peripheral side wall connected between the bottom wall and the top wall, the bottom wall and the top wall are oppositely arranged, a containing space is formed by surrounding the peripheral side wall, the bottom wall and the top wall, the containing space is used for containing materials to be stirred, the bottom wall is a plane, the bottom wall is provided with a discharge hole, and the discharge hole is arranged deviated from the center of the bottom wall. The first stirring assembly is arranged in the accommodating space and comprises at least two stirring pieces, the stirring pieces are arranged close to the inner wall of the kneading cylinder, the at least two stirring pieces are arranged along the circumferential interval of the circumferential side wall, and the at least two stirring pieces are used for rotating around the central shaft of the kneading cylinder so as to at least partially provide stirring centripetal force for the material to be stirred and push the material to be stirred to the discharge port. Compared with the kneader in the center of the bottom wall of the kneader provided with the discharge hole in the related art, the kneader provided by the application is provided with the discharge hole eccentrically, and the discharge efficiency of the kneader is improved by matching the plane bottom wall with the stirring piece.

Description

Kneading machine

Technical Field

The application belongs to kneading equipment technical field, concretely relates to kneader.

Background

In the technical field of kneading equipment, a stirring assembly usually rotates around a central shaft of a kneading cylinder, so that materials to be stirred are easily accumulated in the central area of the kneading cylinder, and the situation of blocking occurs, so that the materials to be stirred are not easy to discharge out of the kneading cylinder, and the discharging efficiency of a kneader is reduced.

Disclosure of Invention

In view of this, the present application provides a kneader comprising:

the kneading cylinder comprises a bottom wall, a top wall and a peripheral side wall connected between the bottom wall and the top wall, wherein the bottom wall and the top wall are oppositely arranged, the peripheral side wall, the bottom wall and the top wall are enclosed to form an accommodating space, the accommodating space is used for accommodating materials to be stirred, the bottom wall is a plane, and is provided with a discharge hole, and the discharge hole is deviated from the center of the bottom wall; and

The first stirring assembly is arranged in the accommodating space and comprises at least two stirring pieces, the stirring pieces are close to the inner wall of the kneading cylinder, the at least two stirring pieces are arranged along the circumferential space of the circumferential wall, and the at least two stirring pieces are used for rotating around the central shaft of the kneading cylinder so as to at least partially provide stirring centripetal force for the material to be stirred and push the material to be stirred to the discharge port.

The kneader provided herein is composed of a kneading cylinder and a first stirring assembly. The kneading cylinder can hold the material to be stirred. The first stirring assembly is arranged in the kneading cylinder and can stir the material to be stirred and push at least part of the material to be stirred to the discharge port.

First, the discharge opening in this application is disposed off-center from the bottom wall. Compared with the kneader in which the discharge hole is arranged in the center of the bottom wall in the related art, the kneader is provided with the kneading barrel center area which can avoid the material blockage easily, so that the material to be stirred is discharged from the discharge hole more easily, and the discharging efficiency of the kneader is improved. Secondly, stirring piece in this application not only is used for stirring to wait to stir the material when rotatory, still is used for will waiting to stir the material and push away to the discharge gate to further improve the discharge efficiency of kneader.

In addition, diapire in this application is the plane, and plane diapire, stirring piece and eccentric discharge gate mutually support, can avoid waiting to stir the material and pile up in kneading the section of thick bamboo, improve the discharge efficiency of kneader.

To sum up, this application is through setting up the discharge gate is eccentric, cooperation plane diapire and stirring piece, has improved the discharge efficiency of kneader.

The stirring piece comprises a connecting portion, side paddles and a bottom paddle which are sequentially connected, the connecting portion is adjacent to the top wall and is arranged, the side paddles are close to the peripheral side wall and are arranged at intervals in the circumferential direction of the peripheral side wall, the bottom paddles are close to the bottom wall, orthographic projection of the bottom paddles on the bottom wall at least partially covers the center of the bottom wall, and the bottom paddles are used for pushing materials to be stirred to the discharge port.

Wherein, each bottom oar deviates from the one end interconnection of lateral part oar is as an organic whole, and the pushing surface of bottom oar is used for when rotatory pass through the discharge gate.

The bottom paddles comprise a first sub-bottom paddle and a second sub-bottom paddle which are arranged in an intersecting mode, one end of the first sub-bottom paddle is connected with the side paddles, one end of the second sub-bottom paddle, which is far away from the first sub-bottom paddle, extends towards the central shaft of the kneading cylinder, the extending directions of the second sub-bottom paddles of the two oppositely arranged bottom paddles are identical and are connected into a whole, the first sub-bottom paddle and the second sub-bottom paddle are bent to form a folded corner, and the working face of the folded corner is used for passing through the discharge hole when rotating so as to push the material to be stirred to the discharge hole.

The first stirring assembly further comprises a disc, the disc is close to the bottom wall and is close to the central shaft of the kneading cylinder, the disc is connected with one end of each bottom paddle, which is away from the side paddles, the top surface of the disc protrudes out of the bottom paddles in the direction of the bottom wall, which is pointed to the top wall, and the orthographic projection of the disc on the bottom wall is located outside the discharge hole.

The first stirring assembly further comprises at least two first scraping pieces, wherein the at least two first scraping pieces are arranged on different bottom paddles and are used for scraping the materials to be stirred adhered to the bottom wall, and the at least two first scraping pieces are arranged in a staggered manner along the radial direction of the kneading cylinder;

the first stirring assembly further comprises at least two second scraping pieces, wherein the at least two second scraping pieces are arranged on different side paddles and are used for scraping materials to be stirred, the materials adhere to the peripheral side walls, and the at least two second scraping pieces are arranged in a staggered mode along the axial direction of the kneading cylinder.

The first scraping surfaces of the first sub-scraping elements are used for passing through the part of the discharge hole when rotating, and the second scraping surfaces of the second sub-scraping elements are used for passing through the other part of the discharge hole when rotating.

The bottom wall is obliquely arranged in the axial direction of the kneading cylinder, the bottom wall is provided with a high-level area and a low-level area which are opposite to each other, the low-level area is far away from the top wall compared with the high-level area, and the discharge port is positioned in the low-level area.

The stirring piece comprises a bottom paddle, the bottom paddle is arranged close to the bottom wall, the orthographic projection of the bottom paddle on the bottom wall at least partially covers the center of the bottom wall, the bottom paddle is obliquely arranged in the axial direction of the kneading cylinder, the oblique direction of the bottom paddle is the same as the oblique direction of the bottom wall, and the bottom paddle is used for pushing the material to be stirred to the discharge port.

Wherein the discharge port is disposed adjacent to the peripheral sidewall.

The first stirring assembly further comprises at least one supporting frame, every two adjacent stirring pieces are connected through the supporting frame, and the supporting frame is used for providing supporting force for the at least two stirring pieces in the rotating process.

The first stirring assembly further comprises a first rotating shaft, the first rotating shaft is arranged along the central shaft of the kneading cylinder, and the at least two stirring pieces are connected with the first rotating shaft;

the kneader still includes the second stirring subassembly, the second stirring subassembly is located two at least stirring piece enclose the accommodation space that forms, the second stirring subassembly includes the second pivot, the second pivot is followed the center pin setting of kneading cylinder, the second pivot with the coaxial setting of first pivot, the second stirring subassembly is used for around the center pin rotation of kneading cylinder, at least for wait to stir the material and provide stirring centrifugal force.

Drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be described below.

Fig. 1 is a schematic perspective view of a kneader according to an embodiment of the present application.

Fig. 2 is a side view of a kneader provided in an embodiment of this application.

FIG. 3 is a schematic cross-sectional view of the kneader provided in FIG. 2 along the A-A direction in an embodiment of this application.

FIG. 4 is a schematic cross-sectional view of the kneader provided in FIG. 2 along the direction B-B in an embodiment of this application.

Fig. 5 is a schematic perspective view showing a structure of a kneader according to an embodiment of the present application with a top wall removed.

Fig. 6 is a schematic perspective view of a first stirring assembly according to an embodiment of the present application.

Fig. 7 is a schematic perspective view of a first stirring assembly according to another embodiment of the present application.

FIG. 8 is a schematic cross-sectional view of the kneader provided in FIG. 2 along the direction B-B in another embodiment of this application.

Fig. 9 is a schematic perspective view of a first stirring assembly according to another embodiment of the present disclosure.

Fig. 10 is a top view of a first stirring assembly according to an embodiment of the present application.

Fig. 11 is a schematic cross-sectional view of the kneader provided in fig. 2 along the direction B-B in still another embodiment of this application.

FIG. 12 is a schematic cross-sectional view of the kneader provided in FIG. 2 along the A-A direction in another embodiment of this application.

FIG. 13 is a schematic cross-sectional view of the kneader provided in FIG. 2 along the A-A direction in still another embodiment of this application.

Fig. 14 is a schematic perspective view of a first stirring assembly and a second stirring assembly according to an embodiment of the present disclosure.

Description of the reference numerals:

the device comprises a kneader 1, a kneading cylinder 11, an accommodating space 11a, a top wall 111, a peripheral side wall 112, a bottom wall 113, a high-level area 113a, a low-level area 113b, a discharge hole 114, a first stirring component 12, a stirring piece 121, an accommodating space 121a, a connecting part 1211, a side paddle 1212, a bottom paddle 1213, a first sub-bottom paddle 1214, a second sub-bottom paddle 1215, a folded corner 1216, a disc 122, a supporting frame 123, a first scraping piece 1241, a second scraping piece 1242, a first sub-scraping piece 1243, a second sub-scraping piece 1244, a first rotating shaft 125, a second stirring component 13, a second rotating shaft 131, a first motor 14 and a second motor 15.

Detailed Description

The following are preferred embodiments of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application and are intended to be within the scope of the present application.

Referring to fig. 1 to 5, fig. 1 is a schematic perspective view of a kneader according to an embodiment of the present disclosure. Fig. 2 is a side view of a kneader provided in an embodiment of this application. FIG. 3 is a schematic cross-sectional view of the kneader provided in FIG. 2 along the A-A direction in an embodiment of this application. FIG. 4 is a schematic cross-sectional view of the kneader provided in FIG. 2 along the direction B-B in an embodiment of this application. Fig. 5 is a schematic perspective view showing a structure of a kneader according to an embodiment of the present application with a top wall removed.

The present embodiment provides a kneader 1, the kneader 1 comprising a kneading block 11 and a first stirring section 12. The kneading cylinder 11 comprises a bottom wall 113, a top wall 111 and a peripheral side wall 112 connected between the bottom wall 113 and the top wall 111, wherein the bottom wall 113 and the top wall 111 are arranged opposite to each other, the peripheral side wall 112, the bottom wall 113 and the top wall 111 enclose to form an accommodating space 11a, the accommodating space 11a is used for accommodating materials to be stirred, the bottom wall 113 is a plane, the bottom wall 113 is provided with a discharge hole 114, and the discharge hole 114 is arranged offset from the center of the bottom wall 113. The first stirring assembly 12 is disposed in the accommodating space 11a, the first stirring assembly 12 includes at least two stirring members 121, the stirring members 121 are disposed proximate to the inner wall of the kneading cylinder 11, the at least two stirring members 121 are disposed along the circumferential space of the circumferential wall 112, and the at least two stirring members 121 are configured to rotate around the central axis of the kneading cylinder 11, so as to at least partially provide a stirring centripetal force for the material to be stirred and push the material to be stirred to the discharge port 114.

Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims of the present application and in the above-described figures, are used for distinguishing between different objects and not for describing a particular sequential order.

The kneader 1 provided in this embodiment is composed of a kneading cylinder 11 and a first stirring assembly 12. The kneader 1 can be used for stirring the materials to be stirred, and improves the uniformity and the kneading degree of the materials to be stirred. The kneader 1 according to the present embodiment may include various components, and the present embodiment is schematically described only with respect to the application of the kneader 1 to a battery paste. However, this does not represent that the kneader 1 of the present embodiment is necessarily applied to a battery paste. In other embodiments, the kneader 1 can also be applied to other fields, such as fertilizer fields, construction fields, etc.

The kneader 1 provided in this embodiment includes a kneading barrel 11 for accommodating a material to be stirred, a first stirring assembly 12, and other components. The material to be stirred generally comprises a plurality of materials. The materials to be stirred can be solid, liquid and the like. For example, the materials to be stirred are various solid powders. For another example, the material to be stirred is at least one solid powder and at least one solution. For another example, the material to be stirred is a plurality of solutions. The kneading drums 11 are cylindrical in shape, and the kneading drums 11 have a center axis which is the center axis of the cylinder (shown by a broken line L in fig. 3). The center of the bottom wall 113 is the intersection point of the central axis of the kneading cylinder 11 with the bottom wall 113 (shown as point O in fig. 3). Optionally, the kneader 1 further comprises a discharge pipe which communicates with the discharge opening 114 and which is provided with a suction pump or a suction motor in order to let the material to be stirred flow from the kneading drums 11 to the discharge pipe.

The kneader 1 provided in this embodiment further includes a first stirring section 12 for stirring the material to be stirred and pushing at least part of the material to be stirred toward the discharge port 114. Alternatively, the number of stirring members 121 is 2 to 8. Alternatively, the distance between the stirring member 121 and the wall of the kneading cylinder 11 is 2mm to 10mm.

In the related art, the stirring speed in the central region of the kneading barrel 11 is low, the fluidity of the material to be stirred is low, and the uniformity of the material to be stirred is low, so that the condition of blocking easily occurs. However, the discharge port 114 in this embodiment is disposed off-center from the bottom wall 113. Compared with the kneader 1 with the discharge opening 114 arranged in the center of the bottom wall 113 in the related art, the arrangement can avoid the central area of the kneading cylinder 11 which is easy to be blocked by the discharge opening 114, so that the materials to be stirred are more easy to be discharged from the discharge opening 114, and the discharging efficiency of the kneader 1 is improved. Further, the stirring member 121 in the present embodiment is used not only for stirring the material to be stirred but also for pushing the material to be stirred toward the discharge port 114 at the time of rotation, thereby further improving the discharge efficiency of the kneader 1.

In addition, in the kneader 1 of which the bottom wall 113 is a tapered surface in the related art, the lowest point of the tapered surface is at the center position, which easily causes accumulation of materials, which is disadvantageous in discharging the materials to be stirred out of the kneading drums 11. However, in the present embodiment, the bottom wall 113 is a flat surface, and the flat bottom wall 113, the stirring bar 121, and the eccentric discharge port 114 are fitted to each other, so that the material to be stirred is prevented from accumulating in the kneading cylinder 11, and the discharge efficiency of the kneader 1 is improved.

In summary, in the present embodiment, the discharge efficiency of the kneader 1 is improved by eccentrically arranging the discharge port 114 and matching the planar bottom wall 113 with the stirring part 121.

Referring to fig. 3 and fig. 6 together, fig. 6 is a schematic perspective view of a first stirring assembly according to an embodiment of the disclosure. In one embodiment, the stirring element 121 includes a connecting portion 1211, a side paddle 1212 and a bottom paddle 1213 connected in sequence, the connecting portion 1211 is disposed adjacent to the top wall 111, the side paddles 1212 are disposed adjacent to the peripheral side wall 112, at least two side paddles 1212 are disposed at intervals along the peripheral side wall 112, the bottom paddle 1213 is disposed adjacent to the bottom wall 113, the front projection of the bottom paddle 1213 on the bottom wall 113 at least partially covers the center of the bottom wall 113, and the bottom paddle 1213 is used for pushing the material to be stirred toward the discharge port 114.

The stirring bar 121 in this embodiment is composed of a connecting portion 1211, a side paddle 1212, and a bottom paddle 1213. Optionally, the connecting portion 1211, the side paddles 1212, and the bottom paddle 1213 are integrally formed. First, the connection portion 1211 is disposed adjacent to the top wall 111, so that the connection portion 1211 can be prevented from contacting the material to be stirred to reduce stirring resistance, thereby further improving the stability of the first stirring assembly 12. Optionally, the first stirring assembly 12 further includes the first rotation shaft 125 disposed along a central axis of the kneading cylinder 11, one end of the connecting portion 1211 is connected to the side paddle 1212, and the other end of the connecting portion 1211 is connected to the first rotation shaft 125. Second, the side paddles 1212 are disposed proximate to the peripheral side wall 112, and the side paddles 1212 are capable of not only providing a stirring centripetal force to the material to be stirred, but also scraping the material to be stirred adhering to the inner wall of the kneading cylinder 11. Optionally, the side paddles 1212 are spaced from the peripheral side wall 112 by a distance of 2mm-10mm. Moreover, the bottom paddles 1213 can also provide upward thrust for the material to be stirred, the bottom paddles 1213 and the side paddles 1212 are mutually matched, stirring of the material to be stirred can be realized in all directions, and the kneading effect of the kneader 1 is improved. Optionally, bottom paddle 1213 is spaced from bottom wall 113 by a distance of 2mm-10mm.

And, the orthographic projection of bottom paddle 1213 onto bottom wall 113 at least partially covers the center of bottom wall 113. The bottom paddles 1213 may provide centrifugal force to the material to be stirred located on the peripheral side of the bottom paddles 1213 as they rotate, moving the material to be stirred located in the central region of the bottom wall 113 to the peripheral region. In other words, the bottom blade 1213 can push the material to be stirred toward the peripheral edge area, and is eccentrically disposed in cooperation with the discharge port 114, so that the discharge can be promoted, thereby improving the discharge efficiency of the kneader 1.

Referring to fig. 6, in one embodiment, an end of each bottom paddle 1213 facing away from the side paddle 1212 is integrally interconnected, and the pushing surface of the bottom paddle 1213 is configured to pass through the outlet 114 when rotated.

The bottom paddles 1213 in this embodiment are interconnected as one piece at their ends facing away from the side paddles 1212, and optionally each bottom paddle 1213 extends toward the central axis of the kneading barrel 11 and is connected as one piece. First, such a setting enables the bottom blade 1213 to contact more material to be stirred, thereby enabling more material to be stirred to be pushed, improving the discharge efficiency of the kneader 1. Secondly, the pushing surface of the bottom paddle 1213 passes through the discharge port 114 when rotating, in other words, when the bottom paddle 1213 passes through the discharge port 114, the discharge port 114 is located below the bottom paddle 1213, so that the distance between the bottom paddle 1213 and the discharge port 114 is shortened, and more materials to be stirred are pushed to the discharge port 114 by the bottom paddle 1213, so that the discharge efficiency of the kneader 1 is further improved.

In addition, the bottom paddle 1213 that is integrally connected can provide a supporting force for the first stirring assembly 12 in the rotating process, so that the distance between the adjacent stirring pieces 121 is kept fixed, and further, at least two stirring pieces 121 keep the shape in the stirring process, so that the overall structure of the first stirring assembly 12 is more stable, the stability of the first stirring assembly 12 is improved, and the deformation probability of the first stirring assembly 12 is reduced. In addition, by integrally connecting the bottom paddles 1213, the stirring effect of the stirring members 121 on the material to be stirred can be improved, and the kneading effect of the kneader 1 can be improved.

Referring to fig. 7-8 together, fig. 7 is a schematic perspective view of a first stirring assembly according to another embodiment of the present application. FIG. 8 is a schematic cross-sectional view of the kneader provided in FIG. 2 along the direction B-B in another embodiment of this application. In one embodiment, the bottom paddles 1213 comprise a first sub-bottom paddle 1214 and a second sub-bottom paddle 1215 which are disposed in an intersecting manner, one end of the first sub-bottom paddle 1214 is connected to the side paddle 1212, one end of the second sub-bottom paddle 1215 away from the first sub-bottom paddle 1214 extends toward the central axis of the kneading cylinder 11, the extending directions of the second sub-bottom paddles 1215 of the two oppositely disposed bottom paddles 1213 are the same and are interconnected as a whole, and the first sub-bottom paddle 1214 and the second sub-bottom paddle 1215 are bent to form a folded corner 1216, and the working surface of the folded corner 1216 is used to pass through the discharge port 114 when rotating so as to push the material to be stirred toward the discharge port 114.

The bottom paddles 1213 in this embodiment include a first sub-bottom paddle 1214 and a second sub-bottom paddle 1215 disposed in an intersecting relationship. When the number of the stirring pieces 121 is two, the two first sub-bottom paddles 1214 are respectively connected with different side paddles 1212, and the two second sub-bottom paddles 1215 are connected with each other to form an integrally formed bottom paddle 1213 having an S shape. At least part of the junction of the two second sub-bottom paddles 1215 corresponds to the central axis of the kneading barrel 11.

When the number of stirring members 121 is two, the bottom paddle 1213 has two folded corners 1216 having opposite folding directions. The folded corner 1216 can push the material to be stirred. The working surface of the corner 1216 is adapted to pass the discharge opening 114 when rotated, in other words, when the corner 1216 is rotated above the discharge opening 114, at least part of the orthographic projection of the corner 1216 on the bottom wall 113 is located in the discharge opening 114. Optionally, the corner 1216 is equidistant from the center of the bottom wall 113 from the discharge port 114 to the center of the bottom wall 113. Optionally, the corner 1216 has an inner corner face and an outer corner face, and the bottom paddle 1213 rotates in a direction from the outer corner face to the inner corner face (as shown in the direction D1 in fig. 8). As the bottom paddle 1213 rotates, the inner angled surface can push more of the material to be stirred toward the discharge port 114.

First, in the present embodiment, the first sub-bottom paddles 1214 and the second sub-bottom paddles 1215 are staggered outside the central area, so that the bottom paddles 1213 can stir the slurry in more peripheral areas, thereby improving the turbulence effect generated by the first stirring assembly 12, not only improving the kneading effect, but also promoting the discharge of the material to be stirred to the eccentric discharge port 114. Secondly, the folded corner 1216 is matched with the eccentric discharge hole 114, so that the material to be stirred can be pushed to the discharge hole 114, and the discharge efficiency of the kneader 1 is improved.

In addition, by intersecting the first sub-bottom paddles 1214 and the second sub-bottom paddles 1215, an S-shaped bottom paddle 1213 is formed, so that the resistance of the material to be stirred to the bottom paddles 1213 can be better dispersed when the material to be stirred contacts the rotating bottom paddles 1213, and the stability of the first stirring assembly 12 is improved.

Referring to fig. 3, fig. 4, and fig. 9 together, fig. 9 is a schematic perspective view of a first stirring assembly according to another embodiment of the present application. In one embodiment, the first stirring assembly 12 further includes a disc 122 disposed proximate to the bottom wall 113 and near a central axis of the kneading cylinder 11, the disc 122 is connected to one end of each bottom paddle 1213 facing away from the side paddle 1212, a top surface of the disc 122 protrudes from the bottom paddle 1213 in a direction in which the bottom wall 113 points toward the top wall 111, and an orthographic projection of the disc 122 on the bottom wall 113 is located outside the discharge port 114.

The connector provided in this embodiment includes a disc 122. Alternatively, the disk 122 is disposed corresponding to the center axis of the kneader 1. The top surface of the disc 122 protrudes from the bottom paddle 1213 in the direction of the bottom wall 113 toward the top wall 111, in other words, the disc 122 is a disc-mounted structural member having a certain height. Alternatively, the disc 122 is hollow in structure. In addition, the orthographic projection of the disc 122 on the bottom wall 113 is located outside the discharge port 114, in other words, the disc 122 is staggered with the discharge port 114.

First, by providing the disc 122 on the bottom blade 1213, the disc 122 can occupy a space near the central area, so that the material to be stirred cannot be placed in the central area, the stacking phenomenon in the central area is reduced, the material to be stirred flows to the peripheral area, and the discharging efficiency of the kneader 1 is improved. Secondly, since the orthographic projection of the disc 122 on the bottom wall 113 is located outside the discharge port 114, the disc 122 can provide centrifugal force to the material to be stirred on the peripheral side, push the material to be stirred to the eccentric discharge port 114, and further improve the discharge efficiency of the kneader 1.

In addition, the disks 122 also enhance the connection between the bottom paddles 1213, thereby making the overall structure of the first stirring assembly 12 more stable.

The first stirring assembly 12 of the present application has two structures for scraping off the material to be stirred adhering to the inner wall of the kneading cylinder 11. In one embodiment, having a first predetermined spacing between the side paddles 1212 and the peripheral sidewall 112, the side of the side paddles 1212 proximate to the peripheral sidewall 112 may be used to scrape off material to be stirred that adheres to the peripheral sidewall 112; and/or, a second preset distance is provided between the bottom paddle 1213 and the bottom wall 113, and a side of the bottom paddle 1213 close to the bottom wall 113 can be used for scraping off the materials to be stirred adhered to the bottom wall 113. In another embodiment, the stirring member 121 is provided with a scraping member for scraping off the material to be stirred adhering to the inner wall of the kneading cylinder 11. The structure of the scraper member will be described in detail.

Referring to fig. 5, 9 and 10, fig. 10 is a top view of a first stirring assembly according to an embodiment of the present application. In one embodiment, the first stirring assembly 12 further includes at least two first scraping members 1241, where the at least two first scraping members 1241 are provided on different bottom paddles 1213 for scraping the material to be stirred adhered to the bottom wall 113, and the at least two first scraping members 1241 are staggered along the radial direction of the kneading drum 11;

the first stirring assembly 12 further comprises at least two second scraping members 1242, wherein the at least two second scraping members 1242 are arranged on different side paddles 1212 and are used for scraping the materials to be stirred adhered to the peripheral side wall 112, and the at least two second scraping members 1242 are staggered along the axial direction of the kneading cylinder 11.

In this embodiment, the first scraping member 1241 is disposed on the side paddle 1212, so that the first scraping member 1241 can scrape the material to be stirred adhering to the peripheral sidewall 112 during the stirring process of the side paddle 1212, so as to improve the kneading effect. Optionally, at least one of the first scraping members 1241 is adapted to cover the peripheral side wall 112 when rotated. The scraping surface of the first scraping member 1241 when rotating covers the peripheral side wall 112, in other words, the first scraping member 1241 can completely and completely scrape the material to be stirred of the entire peripheral side wall 112, thereby improving the scraping effect of the first scraping member 1241 and further improving the kneading effect of the kneader 1.

The first scraping members 1241 are staggered along the axial direction of the kneading cylinder 11, so that the scraping surfaces of the first scraping members 1241 can cover the peripheral side wall 112, the scraping effect of the stirring members 121 is improved, and the kneading effect of the kneader 1 is improved; and the rotation resistance of the first stirring assembly 12 can be reduced, so that the whole structure of the first stirring assembly 12 is more stable, and the deformation probability of the first stirring assembly 12 is reduced.

The second scraping member 1242 is provided on the bottom blade 1213 in the present embodiment, so that the second scraping member 1242 can scrape the material to be stirred adhering to the bottom wall 113 during stirring of the bottom blade 1213, thereby improving kneading effect. Optionally, at least one of said second scraping members 1242 is adapted to cover said bottom wall 113 with a scraping surface upon rotation. The scraping surface of the second scraping member 1242 at the time of rotation covers the bottom wall 113, in other words, the second scraping member 1242 can completely and completely scrape the material to be stirred of the entire bottom wall 113, thereby improving the scraping effect of the second scraping member 1242 and further improving the kneading effect of the kneader 1.

The second scraping members 1242 are arranged alternately in the radial direction of the kneading cylinder 11, so that the scraping surfaces of the second scraping members 1242 can cover the bottom wall 113, the scraping effect of the stirring members 121 is improved, and the kneading effect of the kneader 1 is improved; the rotation resistance of the first stirring assembly 12 is reduced, so that the whole structure of the first stirring assembly 12 is more stable, and the deformation probability of the first stirring assembly 12 is reduced.

Referring to fig. 11, fig. 11 is a schematic cross-sectional view of the kneader provided in fig. 2 along the direction B-B in accordance with still another embodiment of the present application. In one embodiment, the at least two first scraping members 1241 comprise a first sub-scraping member 1243 and a second sub-scraping member 1244 provided to different ones of the bottom paddles 1213, a first scraping surface of the first sub-scraping member 1243 being configured to pass over a portion of the discharge opening 114 when rotated, and a second scraping surface of the second sub-scraping member 1244 being configured to pass over another portion of the discharge opening 114 when rotated.

The first sub-doctoring elements 1243 and the second sub-doctoring elements 1244 in this embodiment are staggered in the radial direction of the kneading drums 11. The first scraping surface of first sub-scraper 1243 is intended to pass the portion of discharge opening 114 when rotating, in other words, when first sub-scraper 1243 is located above discharge opening 114, the orthographic projection of first sub-scraper 1243 on bottom wall 113 covers the portion of discharge opening 114. The second scraping surface of second sub-scraper 1244 is intended to pass another part of discharge opening 114 when rotating, in other words, when second sub-scraper 1244 is located above discharge opening 114, the orthographic projection of second sub-scraper 1244 on bottom wall 113 covers the part of discharge opening 114.

Thus, when the first sub-scraper 1243 is positioned on the eccentric discharge port 114, only a part of the discharge port 114 is passed so that the material to be stirred can enter the discharge port 114 from the part not covered by the first sub-scraper 1243; when the second sub-scraper 1244 is positioned on the eccentric discharge port 114, only a part of the discharge port 114 is passed so that the material to be stirred can enter the discharge port 114 from the part not covered by the second sub-scraper 1244; the first sub-scraping part 1243 and the second sub-scraping part 1244 cooperate with each other so that the material to be stirred can be smoothly discharged from the discharge port 114, thereby improving the discharge efficiency of the kneader 1.

Referring to fig. 12, fig. 12 is a schematic cross-sectional view of the kneader provided in fig. 2 along the A-A direction in another embodiment of the present application. In one embodiment, the bottom wall 113 is disposed obliquely in the axial direction of the kneading cylinder 11, the bottom wall 113 has an upper region 113a and a lower region 113b opposite to each other, the lower region 113b is farther from the top wall 111 than the upper region 113a, and the discharge port 114 is located in the lower region 113b.

In the present embodiment, the bottom wall 113 is inclined in the axial direction of the kneading cylinder 11 (as shown in the direction D2 in fig. 12), and the bottom wall 113 has a high level region 113a and a low level region 113b which are opposite. In the axial direction of the kneading barrel 11, the bottom wall 113 of the high-level zone 113a is higher than the bottom wall 113 of the low-level zone 113b. Alternatively, the bottom paddles 1213 are disposed vertically in the axial direction of the kneading cylinder 11. Alternatively, the bottom paddles 1213 are disposed obliquely in the axial direction of the kneading cylinder 11.

Alternatively, the extending direction of the bottom wall 113 may be in the range of 60 ° to 80 ° from the axial direction of the kneading barrel 11. Further alternatively, the extending direction of the bottom wall 113 makes an angle of 65 ° to 75 ° with the axial direction of the kneading barrel 11. For example, the extending direction of the bottom wall 113 makes an angle of 68 °, or 70 °, or 73 ° with the axial direction of the kneading barrel 11. In other words, the extending direction of the bottom wall 113 forms an angle of 10 ° -30 ° with the horizontal.

The kneading effect of the material to be stirred can be ensured and the discharge efficiency of the kneader 1 can be improved by designing the range of the angle of the extending direction of the bottom wall 113 and the axial direction of the kneading barrel 11 to the above-described range. If the angle between the extending direction of the bottom wall 113 and the axial direction of the kneading cylinder 11 is too large, the discharging efficiency of the kneader 1 is lowered; if the angle between the extending direction of the bottom wall 113 and the axial direction of the kneading cylinder 11 is too small, the difficulty in stirring the material to be stirred by the kneader 1 is increased, and the kneading effect of the material to be stirred is reduced. Accordingly, the angle between the extending direction of the bottom wall 113 and the axial direction of the kneading barrel 11 is in the range of 60 ° to 80 °, which can ensure the kneading effect of the material to be stirred and can improve the discharge efficiency of the kneader 1.

In this embodiment, the discharge port 114 is disposed in the low-level region 113b of the bottom wall 113, so that the material to be stirred can flow to the discharge port 114 under the action of gravity, thereby improving the discharge efficiency of the kneader 1.

Referring to fig. 13, fig. 13 is a schematic cross-sectional view of the kneader provided in fig. 2 along the A-A direction in still another embodiment of the present application. In one embodiment, the stirring member 121 includes a bottom blade 1213, the bottom blade 1213 is disposed proximate to the bottom wall 113, an orthographic projection of the bottom blade 1213 on the bottom wall 113 at least partially covers a center of the bottom wall 113, the bottom blade 1213 is disposed obliquely in an axial direction of the kneading drum 11, an oblique direction of the bottom blade 1213 is the same as an oblique direction of the bottom wall 113, and the bottom blade 1213 is used for pushing the material to be stirred toward the discharge port 114.

The inclination of the bottom paddle 1213 in this embodiment is the same as the inclination of the bottom wall 113. The angle of inclination of the bottom paddle 1213 is the same as or similar to the angle of the bottom wall 113. Optionally, the angle between bottom paddle 1213 and bottom wall 113 is less than or equal to 10 °. Alternatively, the bottom paddles 1213 rotate about a sub-rotation shaft provided obliquely in the axial direction of the kneading cylinder 11, the oblique direction of the sub-rotation shaft being the same as the oblique direction of the bottom paddles 1213. Further alternatively, the sub-rotation axis is perpendicular to the bottom wall 113.

In this embodiment, by defining the inclination relationship between the bottom paddle 1213 and the bottom wall 113, the inclination directions of the bottom paddle 1213 and the bottom wall 113 are the same, so that the bottom paddle 1213 and the bottom wall 113 are matched with each other, and the bottom paddle 1213 can push the material to be stirred to the discharge port 114, and can scrape and push the material to be stirred on the bottom wall 113 inward, so as to improve the kneading effect of the material to be stirred.

Referring also to fig. 3-4, in one embodiment, the outlet 114 is disposed adjacent to the peripheral sidewall 112.

The discharge port 114 in the present embodiment is closer to the peripheral side wall 112 than the center of the bottom wall 113. This arrangement allows the discharge port 114 to be located away from the central area where plugging is likely to occur. Further, since the fluidity of the material to be stirred near the peripheral side wall 112 is high, the discharge efficiency of the kneader 1 can be further improved by disposing the discharge port 114 near the peripheral side wall 112.

Referring to fig. 6, in one embodiment, the first stirring assembly 12 further includes at least one supporting frame 123, wherein each two adjacent stirring members 121 are connected by the supporting frame 123, and the supporting frame 123 is used for providing supporting force for the at least two stirring members 121 during rotation.

The first stirring assembly 12 provided in this embodiment further includes at least one supporting frame 123 for connecting the stirring member 121. Optionally, the support bracket 123 is connected to the connection portion 1211. Optionally, a support bracket 123 is connected to the side paddle 1212. Optionally, support bracket 123 is connected to bottom paddle 1213. Optionally, the supporting frame 123 is disposed adjacent to the top wall 111, and the supporting frame 123 includes at least one supporting rod, and the supporting rod is connected between two adjacent side paddles 1212.

Alternatively, the number of stirring members 121 is at least three. The support rods correspondingly connected with the two adjacent stirring structures form a triangular support structure, so that the overall stability of the first stirring assembly 12 is further improved. Optionally, at least two support rods are connected end to form a ring shape. Alternatively, at least one support bar is perpendicular to the central axis of the kneading cylinder 11; further alternatively, the support 123 may be located on a plane perpendicular to the central axis of the kneading cylinder 11.

In this embodiment, at least two stirring members 121 are connected into a whole by the supporting frame 123, the supporting frame 123 provides supporting force for the first stirring assembly 12 in the rotation process, so that the distance between the adjacent stirring members 121 is kept fixed, and further, the shape of the at least two stirring members 121 is kept in the stirring process, so that the overall structure of the first stirring assembly 12 is more stable.

Referring to fig. 3 and fig. 14 together, fig. 14 is a schematic perspective view of a first stirring assembly and a second stirring assembly according to an embodiment of the disclosure. In one embodiment, the first stirring assembly 12 further includes a first rotating shaft 125, the first rotating shaft 125 is disposed along a central axis of the kneading cylinder 11, and the at least two stirring members 121 are connected to the first rotating shaft 125;

The kneader 1 further comprises a second stirring assembly 13, the second stirring assembly 13 is located in a containing space 121a formed by surrounding at least two stirring pieces 121, the second stirring assembly 13 comprises a second rotating shaft 131, the second rotating shaft 131 is arranged along the central shaft of the kneading cylinder 11, the second rotating shaft 131 and the first rotating shaft 125 are coaxially arranged, and the second stirring assembly 13 is used for rotating around the central shaft of the kneading cylinder 11 and at least providing stirring centrifugal force for materials to be stirred.

The kneader 1 provided in this embodiment further comprises a second stirring assembly 13, and the second stirring assembly 13 is used for stirring the material to be stirred. Optionally, the kneader 1 further comprises a first motor 14 and a second motor 15, the first motor 14 being used for driving the first stirring assembly 12 and the second motor 15 being used for driving the second stirring assembly 13. For example, the first stirring assembly 12 is fixed to an outer shaft, the second stirring assembly 13 is fixed to an inner shaft, and the outer shaft is connected to the inner shaft through a bearing. The first stirring assembly 12 is driven by a gear motor via a belt, chain or gear. The motor is a variable frequency motor.

Alternatively, the first stirring assembly 12 and the second stirring assembly 13 may be rotated in the same or different directions. Alternatively, the rotational speeds of the first stirring assembly 12 and the second stirring assembly 13 are equal or unequal. Optionally, the rotational speed of the first stirring assembly 12 is 0-2m/s; the rotation speed of the second stirring assembly 13 is 0-20m/s. In other words, the first stirring assembly 12 may be understood as a low speed paddle and the second stirring assembly 13 may be understood as a high speed paddle.

According to the stirring device, the first stirring assembly 12 and the second stirring assembly 13 cooperatively rotate, the first stirring assembly 12 centripetally stirs the materials to be stirred, the second stirring assembly 13 centrifugally stirs the materials to be stirred, turbulence is formed between the first stirring assembly 12 and the second stirring assembly 13, stirring efficiency of the materials to be stirred is improved, stirring effect of the materials to be stirred is improved, and kneading effect of the materials to be stirred is improved.

Optionally, the kneader 1 comprises a control system for controlling the rotation of the first stirring element 12 and the second stirring element 13 around the central axis of the kneading drums 11.

When the rotation resistance of the first stirring assembly 12 is greater than or equal to a first preset resistance, and/or the rotation resistance of the second stirring assembly 13 is greater than or equal to a second preset resistance, the control system controls the first stirring assembly 12 and the second stirring assembly 13 to rotate in the same direction.

When the rotation resistance of the first stirring assembly 12 is smaller than the first preset resistance and the rotation resistance of the second stirring assembly 13 is smaller than the second preset resistance, the control system controls the first stirring assembly 12 and the second stirring assembly 13 to reversely rotate.

Alternatively, the rotation resistance of the first stirring assembly 12 and the second stirring assembly 13 is determined by detecting the load current or the torque corresponding to the first motor 14 and the second motor 15.

In the present embodiment, the first stirring member 12 and the second stirring member 13 can be controlled to rotate in the forward or reverse direction according to the amount of resistance. When the rotation resistance is larger, the first stirring assembly 12 and the second stirring assembly 13 are controlled to rotate in the same direction, so that the stirring resistance can be reduced, the torque of the motor is reduced, the motor is prevented from being overloaded, and the overall stability of the kneader 1 is improved. When the rotation resistance is smaller, the first stirring assembly 12 and the second stirring assembly 13 are controlled to reversely rotate, so that the rotation speed difference between the first stirring assembly 12 and the second stirring assembly 13 can be improved, turbulence is more obvious, the stirring effect of the materials to be stirred is improved, and the kneading effect of the materials to be stirred is further improved.

In one embodiment, first, a plurality of powders are added to the kneading cylinder 11, and the plurality of powders are stirred by the first stirring member 12 and the second stirring member 13 to uniformly mix the plurality of powders. Then, a kneading solvent is added to the kneading barrel 11, and the plurality of powders and the kneading solvent are stirred with the first stirring member 12 and the second stirring member 13 to knead the plurality of powders and the kneading solvent together, to obtain a kneaded product. Subsequently, a diluting solvent is added to the kneading barrel 11, and the plurality of powders, the kneading solvent, and the diluting solvent are stirred with the first stirring member 12 and the second stirring member 13 to dilute the kneaded material, to obtain a slurry to be treated. Subsequently, the slurry to be treated is coated and dried to obtain a product of a specific shape.

The preparation process of kneading various powder and the kneading solvent and then adding the diluting solvent for dilution is adopted, so that the kneading effect of the powder and the solvent can be improved, the solid content of the slurry to be treated can be improved, the solvent in the preparation process can be saved, and the drying time of the subsequent drying step can be shortened.

In the preparation process, the viscosity of the mixed powder is extremely high after the powder is mixed with the kneading solvent, so that the kneading difficulty is high and the discharging difficulty is high. Therefore, by adopting the kneader 1 provided by the application, the discharge hole 114 is eccentrically arranged, and the bottom paddles 1213 of the first stirring assembly 12 are connected into a whole, so that not only is the discharge efficiency of the kneader 1 improved, but also the stability of the first stirring assembly 12 is improved, and the probability of deformation of the first stirring assembly 12 is reduced; the stirring effect of the stirring members 121 on the material to be stirred is also improved, thereby improving the kneading effect of the kneader 1. Moreover, the first stirring assembly 12 can be matched with the second stirring assembly 13, so that the stirring effect of the materials to be stirred is improved, and the kneading effect of the materials to be stirred is further improved.

For example, when the material to be stirred includes a plurality of powders, the control system controls the first stirring assembly 12 and the second stirring assembly 13 to rotate in opposite directions. Optionally, the multiple powders are materials for preparing the anode and the cathode of the battery.

For another example, when the material to be stirred includes a plurality of powders and a kneading solvent, and the viscosity of the material to be stirred is greater than a preset viscosity, the control system controls the first stirring assembly 12 and the second stirring assembly 13 to rotate in the same direction.

For another example, when the material to be stirred includes a plurality of powders and a kneading solvent, and the viscosity of the material to be stirred is less than a preset viscosity, the control system controls the first stirring assembly 12 and the second stirring assembly 13 to rotate reversely.

For another example, when the material to be stirred includes a plurality of powders, a kneading solvent, and a diluting solvent, and the viscosity of the material to be stirred is less than a preset viscosity, the control system controls the first stirring assembly 12 and the second stirring assembly 13 to reversely rotate. Alternatively, the components of the diluting solvent are the same as those of the kneading solvent.

When the material to be stirred comprises a plurality of powders and a kneading solvent, and the viscosity of the material to be stirred is smaller than the preset viscosity, the control system controls the second stirring assembly 13 to have a first rotating speed.

When the material to be stirred comprises a plurality of powders, a kneading solvent and a diluting solvent, and the viscosity of the material to be stirred is smaller than the preset viscosity, the control system controls the second stirring assembly 13 to have a second rotating speed, and the second rotating speed is larger than the first rotating speed.

For another example, when the accommodating space 11a is used for accommodating cleaning solution, the control system controls the first stirring assembly 12 and the second stirring assembly 13 to rotate reversely. Alternatively, the cleaning liquid is water, or a kneading solvent.

The foregoing has outlined rather broadly the more detailed description of the embodiments of the present application in order that the principles and embodiments of the present application may be explained and illustrated herein, the above description being provided for the purpose of facilitating the understanding of the method and core concepts of the present application; meanwhile, as those skilled in the art will have modifications in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.

Claims (12)

1. A kneader, characterized in that the kneader comprises:

the kneading cylinder comprises a bottom wall, a top wall and a peripheral side wall connected between the bottom wall and the top wall, wherein the bottom wall and the top wall are oppositely arranged, the peripheral side wall, the bottom wall and the top wall are enclosed to form an accommodating space, the accommodating space is used for accommodating materials to be stirred, the bottom wall is a plane, and is provided with a discharge hole, and the discharge hole is deviated from the center of the bottom wall; and

The first stirring assembly is arranged in the accommodating space and comprises at least two stirring pieces, the stirring pieces are close to the inner wall of the kneading cylinder, the at least two stirring pieces are arranged along the circumferential space of the circumferential wall, and the at least two stirring pieces are used for rotating around the central shaft of the kneading cylinder so as to at least partially provide stirring centripetal force for the material to be stirred and push the material to be stirred to the discharge port.

2. The kneader of claim 1, characterised in that the stirring elements comprise a connecting part, a side paddle and a bottom paddle connected in sequence, the connecting part being arranged adjacent to the top wall, the side paddles being arranged adjacent to the peripheral side wall, at least two of the side paddles being arranged at intervals in the circumferential direction of the peripheral side wall, the bottom paddle being arranged adjacent to the bottom wall, the orthographic projection of the bottom paddle on the bottom wall at least partially covering the center of the bottom wall, the bottom paddle being arranged to push the material to be stirred towards the discharge opening.

3. A kneader according to claim 2, characterised in that the ends of the bottom paddles facing away from the side paddles are interconnected as a unit and that the pushing surface of the bottom paddles is adapted to pass the discharge opening upon rotation.

4. A kneader as claimed in claim 3, characterised in that the bottom paddles comprise a first sub-bottom paddle and a second sub-bottom paddle arranged in an intersecting manner, one end of the first sub-bottom paddle being connected to the side paddle, one end of the second sub-bottom paddle remote from the first sub-bottom paddle being extended towards the central axis of the kneading barrel, the second sub-bottom paddles of two oppositely arranged bottom paddles extending in the same direction and being interconnected as a unit, the first sub-bottom paddle and the second sub-bottom paddle being bent to form a corner, the working surface of the corner being adapted to pass the discharge opening when rotated to push the material to be stirred towards the discharge opening.

5. A kneader according to claim 3, characterised in that the first agitating element further comprises a disk arranged adjacent to the bottom wall and adjacent to the central axis of the kneading cylinder, the disk being connected to one end of each bottom paddle facing away from the side paddles, the top surface of the disk protruding from the bottom paddles in the direction of the bottom wall towards the top wall, the orthographic projection of the disk on the bottom wall being located outside the discharge opening.

6. The kneader of claim 2, characterised in that the first agitating assembly further comprises at least two first scraping elements provided on different ones of the bottom paddles for scraping the material to be agitated adhering to the bottom wall, the at least two first scraping elements being staggered in a radial direction of the kneading barrel;

The first stirring assembly further comprises at least two second scraping pieces, wherein the at least two second scraping pieces are arranged on different side paddles and are used for scraping materials to be stirred, the materials adhere to the peripheral side walls, and the at least two second scraping pieces are arranged in a staggered mode along the axial direction of the kneading cylinder.

7. The kneader of claim 6, characterised in that the at least two first doctoring elements comprise a first sub-doctoring element and a second sub-doctoring element provided on different ones of the bottom paddles, the first doctoring surface of the first sub-doctoring element being adapted to pass over a portion of the discharge opening upon rotation and the second doctoring surface of the second sub-doctoring element being adapted to pass over another portion of the discharge opening upon rotation.

8. The kneader of claim 1, characterised in that the bottom wall is arranged obliquely in the axial direction of the kneading barrel, the bottom wall having opposite high-level regions and low-level regions, the low-level regions being further from the top wall than the high-level regions, the discharge opening being located in the low-level regions.

9. The kneader of claim 8, characterised in that the stirring elements comprise a bottom paddle, which is arranged close to the bottom wall, the orthographic projection of the bottom paddle on the bottom wall at least partly covers the center of the bottom wall, the bottom paddle is arranged obliquely in the axial direction of the kneading cylinder, the oblique direction of the bottom paddle is the same as the oblique direction of the bottom wall, and the bottom paddle is used for pushing the material to be stirred towards the discharge opening.

10. The kneader according to any of the foregoing claims 1 to 9, characterised in that the outlet is provided adjacent to the peripheral side wall.

11. The kneader of any of claims 1-9, characterised in that the first agitator assembly further comprises at least one support frame between each adjacent two of the agitator elements, the support frame being adapted to provide support for the at least two agitator elements during rotation.

12. The kneader of any of claims 1-9, characterized in that the first agitating assembly further comprises a first shaft disposed along a central axis of the kneading barrel, the at least two agitating members being coupled to the first shaft;

the kneader still includes the second stirring subassembly, the second stirring subassembly is located two at least stirring piece enclose the accommodation space that forms, the second stirring subassembly includes the second pivot, the second pivot is followed the center pin setting of kneading cylinder, the second pivot with the coaxial setting of first pivot, the second stirring subassembly is used for around the center pin rotation of kneading cylinder, at least for wait to stir the material and provide stirring centrifugal force.

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