Stirring device

Abstract

The utility model discloses a stirring device, relating to the technical field of automation equipment, the stirring device comprises a stirring bin, a sealing seat, a stirring paddle and a first driving piece, the bottom of the stirring bin is provided with a mounting hole; the sealing seat is arranged in the mounting hole; clamping grooves are formed in the bottoms of the stirring paddles, and the bottom surfaces of the stirring paddles are attached to the bottom wall of the stirring bin; the top of the sealing seat is clamped in the clamping groove; the first driving part is connected with the stirring paddle to drive the stirring paddle to rotate. According to the technical scheme, the problem that materials in a gap between the bottom wall of the stirring bin and the stirring paddle are extruded to form a film is solved. The stirring effect is improved, and the materials in the stirring bin can be thoroughly discharged.

Description

Technical Field

[0001] The utility model relates to the technical field of automation equipment, in particular to a stirring device. Background Art

[0002] When conventional high-pressure mixers process dry-process electrode materials for lithium batteries, there is a gap between the bottom blades and the bottom of the mixing drum. Due to the low linear velocity and small centrifugal effect in the center area of ​​the bottom of the mixing paddle, powder residue is easily formed. The powder is easily squeezed into a film and attached to the bottom of the mixing drum, forming a dead zone of mixing, resulting in inconsistent material processing and incomplete discharge. Utility Model Content

[0003] The main purpose of the utility model is to propose a stirring device, which aims to solve the technical problems in the prior art that powder remains in the gap between the bottom blade and the bottom of the stirring drum, is squeezed into a film and adheres to the bottom of the stirring drum, forming a stirring dead zone by adhesion, resulting in inconsistent material processing and incomplete discharge.

[0004] To achieve the above-mentioned purpose, the present invention provides a stirring device, which comprises:

[0005] A stirring chamber, wherein the bottom of the stirring chamber has a mounting hole;

[0006] a sealing seat, the sealing seat being arranged in the mounting hole;

[0007] A stirring paddle, wherein the bottom of the stirring paddle has a snap-fit ​​groove, and the bottom surface of the stirring paddle is in contact with the bottom wall of the stirring chamber; the top of the sealing seat is snap-fitted into the snap-fit ​​groove;

[0008] A first driving member is connected to the stirring paddle to drive the stirring paddle to rotate.

[0009] In one embodiment, the stirring paddle comprises:

[0010] A connecting portion, the connecting portion being inwardly recessed to form the engaging groove, the bottom edge of the connecting portion being in contact with the bottom wall of the mixing chamber, and the first driving member being connected to the connecting portion;

[0011] A paddle, one end of which is connected to the edge of the connecting portion, and the other end of which extends toward the side wall of the mixing chamber and fits against the side wall of the mixing chamber.

[0012] In one embodiment, the paddle is arranged at an angle, wherein the bottom of the paddle is in contact with the bottom wall of the mixing chamber, and the top of the paddle extends obliquely upward along the rotation direction of the connecting portion.

[0013] In one embodiment, the number of the paddles is at least two, and the plurality of paddles are evenly spaced apart along the edge of the connecting portion.

[0014] In one embodiment, the blade includes a stirring portion and a bending portion, one end of the stirring portion is connected to the edge of the connecting portion, and the other end extends along a side away from the connecting portion and is connected to the bending portion, and there is an angle between the bending portion and the stirring portion.

[0015] In one embodiment, a thread groove is provided on the edge side wall of the sealing seat.

[0016] In one embodiment, an impeller groove is provided on the top wall of the clamping groove, and the impeller groove is a backward impeller groove.

[0017] In one embodiment, the stirring device further comprises a material dividing component, and the material dividing component is disposed in the stirring bin;

[0018] When the stirring paddle rotates, the material is pushed upward along the side wall of the stirring bin, and when the material dividing component rotates, the falling material is broken up.

[0019] In one embodiment, the material distribution assembly includes:

[0020] a second driving member, one end of the second driving member being connected to the top of the mixing chamber and the other end of the second driving member extending downward;

[0021] A plurality of stirring rods are arranged at intervals on the bottom of the second driving member.

[0022] In one embodiment, the stirring device further includes a material receiving bin, a material outlet is provided at the bottom edge of the stirring bin, and the material receiving bin is connected to the material outlet.

[0023] The technical solution of this utility model is to provide a concave engaging groove at the bottom of the stirring paddle, and to dispose a sealing seat within the engaging groove. This allows the bottom of the stirring paddle to fit closely with the bottom wall of the stirring chamber, increasing the sealing diameter of the stirring paddle and ensuring that the stirring area of ​​the stirring paddle is at a high linear speed. This prevents the area where the stirring paddle contacts the material from stirring at a low linear speed, thereby resolving the problem of material being squeezed and formed into a film in the gap between the bottom wall of the stirring chamber and the stirring paddle. This improves the stirring effect and ensures that the material in the stirring chamber can be completely discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0025] Figure 1 A schematic structural diagram of the stirring device provided by the utility model;

[0026] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0027] Figure 3 A top view of a first embodiment of a stirring paddle in a stirring device provided by the present invention;

[0028] Figure 4 This is a front view of a first embodiment of a stirring paddle in a stirring device provided by the present invention;

[0029] Figure 5 This is a structural schematic diagram of a second embodiment of a stirring paddle in a stirring device provided by the present invention;

[0030] Figure 6 This is a schematic structural diagram of a third embodiment of a stirring paddle in a stirring device provided by the present invention;

[0031] Figure 7 This is a schematic structural diagram of a fourth embodiment of a stirring paddle in a stirring device provided by the present invention;

[0032] Figure 8 This is a schematic structural diagram of a sealing seat in the stirring device provided by the present invention;

[0033] Figure 9 This is a structural schematic diagram of a fifth embodiment of a stirring paddle in a stirring device provided by the present invention;

[0034] Figure 10 This is a schematic diagram of the bottom structure of the stirring paddle in the stirring device provided by the utility model.

[0035] Description of Figure Numbers:

[0036] 10. Mixing chamber; 20. Sealing seat; 21. Threaded groove; 30. Mixing paddle; 31. Connecting portion; 32. Paddle; 321. Mixing portion; 322. Bending portion; 33. Snap-fit ​​groove; 331. Impeller groove; 40. First driving member; 50. Powder assembly; 51. Second driving member; 52. Mixing rod; 60. Receiving chamber.

[0037] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0039] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] The utility model provides a stirring device.

[0042] See also Figure 1 In one embodiment of the present utility model, the present utility model discloses a stirring device, which relates to the technical field of automated equipment. The stirring device includes a stirring chamber 10, a sealing seat 20, a stirring paddle 30 and a first driving member 40. The stirring chamber 10 has a mounting hole at the bottom; the sealing seat 20 is arranged in the mounting hole; the stirring paddle 30 has a snap-fit ​​groove 33 at the bottom, and the bottom surface of the stirring paddle 30 is in contact with the bottom wall of the stirring chamber 10; the top of the sealing seat 20 is snap-fitted into the snap-fit ​​groove 33; the first driving member 40 is connected to the stirring paddle 30 to drive the stirring paddle 30 to rotate.

[0043] In one embodiment, the mixing chamber 10 is cylindrical, and the sealing seat 20 and the stirring paddle 30 are both circular. The bottom of the stirring paddle 30 has an upwardly concave groove, namely a snap-fit ​​groove 33. The shape and size of the snap-fit ​​groove 33 correspond to those of the sealing seat 20, allowing the sealing seat 20 to snap onto the bottom of the stirring paddle 30.

[0044] Specifically, the stirring paddle 30 includes a connecting portion 31 and a blade 32. A snap-fit ​​groove 33 is provided at the bottom of the connecting portion 31. The connecting portion 31 is in the shape of a circular plate, with the bottom recessed inward, i.e., the bottom of the connecting portion 31 is recessed upward to form the snap-fit ​​groove 33.

[0045] A paddle 32 extending radially outward is provided at the edge of the connecting portion 31. Specifically, one end of the paddle 32 is connected to the edge of the connecting portion 31, and the other end extends toward and engages the sidewall of the mixing chamber 10. A through hole is provided at the center of the sealing seat 20 for the drive shaft of the first drive member 40 to pass through and connect with the connecting portion 31, thereby driving the connecting portion 31 to rotate. As the connecting portion 31 rotates, it drives the paddle 32 to rotate synchronously.

[0046] While ensuring that the paddle 32 rotates to stir the material in the mixing chamber 10, the diameter of the sealing seat 20 is maximized to increase the sealing diameter between the connecting portion 31 and the sealing seat 20. This avoids low linear speed stirring, solves the problem of film formation during low linear speed stirring, and reduces residual material during discharge.

[0047] See also Figure 1 and Figure 2 The bottom of the mixing chamber 10 has a through hole for installing the sealing seat 20, and the top of the sealing seat 20 protrudes from the bottom wall of the mixing chamber 10 and extends into the mixing chamber 10. The connecting portion 31 is snapped onto the portion of the sealing seat 20 protruding from the mixing chamber 10 through the snap-in groove 33.

[0048] By properly adjusting the height of the portion of the sealing seat 20 protruding from the mixing chamber 10, the edge of the connecting portion 31 after being clamped can fit as closely as possible to the bottom wall of the mixing chamber 10, so as to prevent the material from entering the gap therebetween.

[0049] The technical solution of the present invention provides a concave engaging groove 33 at the bottom of the stirring paddle 30, with the sealing seat 20 disposed within the engaging groove 33. This allows the bottom of the stirring paddle 30 to conform to the bottom wall of the stirring chamber 10, increasing the sealing diameter of the stirring paddle 30 and ensuring that the stirring area of ​​the stirring paddle 30 operates at a high linear velocity. This prevents the area where the stirring paddle 30 contacts the material from stirring at a low linear velocity, thereby resolving the problem of material being squeezed and formed into a film in the gap between the bottom wall of the stirring chamber 10 and the stirring paddle 30. This improves the stirring effect and ensures that the material in the stirring chamber 10 can be completely discharged.

[0050] In one embodiment, the edge shape of the blade 32 is kept consistent with the shape of the connection between the bottom wall and the side wall of the mixing chamber 10, so that the blade 32 fits the inner wall of the mixing chamber 10 as closely as possible. Figure 1 The connection position between the bottom wall and the side wall of the mixing chamber 10 is a smooth arc connection. Therefore, the edge shape of the blade 32 is also set to be arc-shaped to reduce the gap between them and improve the mixing effect.

[0051] At the same time, the blade 32 is tilted, the bottom of the blade 32 is in contact with the bottom wall of the mixing chamber 10, and the top of the blade 32 extends obliquely upward along the direction of rotation of the connecting portion 31. Figure 3 and Figure 4 In this embodiment, the counterclockwise rotation of the connecting portion 31 is used as an example. The bottom of the paddle 32 is in contact with the bottom wall of the mixing chamber 10. When the connecting portion 31 rotates, it drives the bottom of the paddle 32 forward in a counterclockwise direction. Taking the tangent direction at any position as a reference, if the movement direction of the paddle 32 is the forward direction, the paddle 32 extends obliquely upward from the bottom to the rear.

[0052] By tilting the blade 32, the material rolls upward along the surface of the blade 32 during stirring, thereby improving the stirring effect. Figure 1 The blades 32 fit the side walls of the mixing bin 10 , so when rotating, the material is turned up along the side walls of the mixing bin 10 , and under the action of gravity, it converges toward the center along the parabolic trajectory B and falls back.

[0053] In one embodiment, the stirring device further includes a material separation component, which is disposed in the stirring bin 10; wherein, when the stirring paddle 30 rotates, it pushes the material upward along the side wall of the stirring bin 10, and the material separation component scatters the falling material when it rotates.

[0054] As the material falls back along parabolic trajectory B, the powder assembly 50 rotates at high speed to break up the falling material. Specifically, the material distribution assembly includes a second drive member 51 and multiple stirring rods 52. One end of the second drive member 51 is connected to the top of the mixing bin 10, and the other end extends downward. Multiple stirring rods 52 are spaced apart at the bottom of the second drive member 51. The second drive member 51 can be a motor, etc. The stirring rods 52 are fixed to the drive shaft of the motor. The extension direction of the stirring rods 52 is parallel to the diameter of the stirring paddle 30. When rotating, they can contact the falling material and achieve the effect of breaking up the material.

[0055] In one embodiment, by changing the shape of the blade 32, the rolling direction and rolling height of the material can be adjusted. Figure 5 The paddle 32 includes a stirring portion 321 and a bending portion 322. One end of the stirring portion 321 is connected to the edge of the connecting portion 31, and the other end extends along a side away from the connecting portion 31 and is connected to the bending portion 322. There is an angle between the bending portion 322 and the stirring portion 321.

[0056] Alternatively, the number of blades 32 can be adjusted to at least two, and the blades 32 are evenly spaced along the edge of the connecting portion 31 to further improve the stirring efficiency. Figure 6 and Figure 7 When five blades 32 are provided, they are evenly distributed on the edge of the connecting portion 31 . Figure 6 The middle blade 32 is a disguised structure. Figure 7 The middle blade 32 is a bent structure.

[0057] In one embodiment, see Figure 8 The sealing seat 20 is provided with a threaded groove 21 on its sidewall. When the stirring paddle 30 rotates counterclockwise under the action of the first driving member 40, powder entering the gap between the connecting portion 31 and the sealing seat 20 is pushed downward along the threaded groove 21, thereby pushing the powder out of the gap. This prevents material from entering the shaft seal area.

[0058] Similarly, see Figure 9 The same thread groove 21 can also be provided on the side wall of the clamping groove 33 to increase the downward airflow pressure and prevent the entry of resistance materials.

[0059] In one embodiment, see Figure 10, the top wall of the snap-fit ​​groove 33 is provided with an impeller groove 331, and the impeller groove 331 is a backward impeller groove 331. In some cases, even if there is a trace of material that overcomes the resistance of the thread groove 21 and enters between the bottom surface of the connecting portion 31 and the top surface of the sealing seat 20. In order to prevent the material from further entering the driving shaft of the first driving member 40, the impeller groove 331 is provided on the top wall of the snap-fit ​​groove 33, wherein the top wall is also the inner wall of the side of the snap-fit ​​groove 33 opposite to the top surface of the sealing seat 20. Through the cooperation of the connecting portion 31 and the backward impeller groove 331 as it rotates counterclockwise, the trace powder that enters the impeller groove 331 is thrown to the edge of the sealing seat 20, and is thrown out of the gap between the stirring paddle 30 and the sealing seat 20 in cooperation with the downward thrust of the thread groove 21.

[0060] In one embodiment, see Figure 1 The stirring device also includes a material receiving bin 60. The bottom edge of the stirring bin 10 is provided with a discharge port, and the material receiving bin 60 is connected to the discharge port. After stirring is completed, the discharge port opens, and as the stirring paddle 30 rotates, the material is pushed to the discharge port, and the material is discharged through the discharge port.

[0061] A pipeline is provided between the discharge port and the receiving bin 60 so that the material slides into the receiving bin 60 after leaving the discharge port.

[0062] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A stirring device, characterized in that: The stirring device comprises: A stirring chamber, wherein the bottom of the stirring chamber has a mounting hole; a sealing seat, the sealing seat being arranged in the mounting hole; A stirring paddle, wherein the bottom of the stirring paddle has a snap-fit ​​groove, and the bottom surface of the stirring paddle is in contact with the bottom wall of the stirring chamber; the top of the sealing seat is snap-fitted into the snap-fit ​​groove; A first driving member is connected to the stirring paddle to drive the stirring paddle to rotate.

2. The stirring device according to claim 1, characterized in that The stirring paddle comprises: A connecting portion, the connecting portion being inwardly recessed to form the engaging groove, the bottom edge of the connecting portion being in contact with the bottom wall of the mixing chamber, and the first driving member being connected to the connecting portion; A paddle, one end of which is connected to the edge of the connecting portion, and the other end of which extends toward the side wall of the mixing chamber and fits against the side wall of the mixing chamber.

3. The stirring device according to claim 2, characterized in that The paddle is arranged obliquely, wherein the bottom of the paddle is in contact with the bottom wall of the mixing chamber, and the top of the paddle extends obliquely upward along the rotation direction of the connecting portion.

4. The stirring device according to claim 3, characterized in that The number of the paddles is at least two, and the plurality of paddles are evenly spaced along the edge of the connecting portion.

5. The stirring device according to claim 2, characterized in that The paddle includes a stirring portion and a bending portion, one end of the stirring portion is connected to the edge of the connecting portion, and the other end extends along a side away from the connecting portion and is connected to the bending portion, and an angle is formed between the bending portion and the stirring portion.

6. The stirring device according to claim 1, wherein A thread groove is provided on the edge side wall of the sealing seat.

7. The stirring device according to claim 1, wherein The top wall of the clamping groove is provided with an impeller groove, and the impeller groove is a backward impeller groove.

8. The stirring device according to claim 1, wherein The stirring device further includes a material distribution component, and the material distribution component is arranged in the stirring bin; When the stirring paddle rotates, the material is pushed upward along the side wall of the stirring bin, and when the material dividing component rotates, the falling material is broken up.

9. The stirring device according to claim 8, characterized in that The material distribution component includes: a second driving member, one end of the second driving member being connected to the top of the mixing chamber and the other end of the second driving member extending downward; A plurality of stirring rods are arranged at intervals on the bottom of the second driving member.

10. The stirring device according to claim 1, wherein The stirring device further comprises a material receiving bin, a material outlet is provided at the bottom edge of the stirring bin, and the material receiving bin is communicated with the material outlet.

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