Slurry stirring device
By introducing an elastic guide hood and a vibration mechanism into the slurry mixing device, the problem of outlet blockage was solved, achieving efficient slurry discharge and reducing residue, thus improving production efficiency.
Patent Information
- Application Number
- CN202422557314.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-10-22
AI Technical Summary
Existing slurry mixing devices are prone to clogging at the discharge port, resulting in low discharge efficiency and slurry residue inside the device, causing waste.
The design includes a mixing tank, a mixing mechanism, an opening and closing mechanism, and a vibration mechanism. The discharge port is automatically opened or closed through the elastic guide cover and the opening and closing mechanism, and the vibration mechanism drives the elastic guide cover to vibrate, which avoids blockage and improves discharge efficiency.
It effectively avoids clogging of the slurry at the outlet, improves discharge efficiency, reduces slurry residue in the mixing device, and avoids slurry waste.
Smart Images
Figure CN223530356U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium battery production equipment technology, and in particular to a slurry mixing device. Background Technology
[0002] The main purpose of battery slurry premixing is to initially and uniformly disperse various raw materials, such as active materials (positive or negative electrode materials), conductive agents, binders, and solvents, through mixing and stirring. This lays the foundation for subsequent finer mixing and coating processes. The quality of battery slurry premixing directly affects the performance and quality of the battery. Uneven premixing will lead to uneven distribution of components within the battery, thereby affecting the battery's capacity, cycle life, and safety.
[0003] Existing slurry mixing devices typically use valves or screw extruders to control the discharge at the outlet. Slurry tends to stick together at the outlet, causing blockages and resulting in low discharge efficiency. At the same time, slurry tends to remain inside the mixing device, leading to waste. Utility Model Content
[0004] The purpose of this invention is to provide a slurry mixing device that avoids slurry blockage at the outlet, improves slurry discharge efficiency, and reduces slurry residue in the mixing device.
[0005] To achieve the above objectives, this utility model provides a slurry mixing device, including a mixing tank, a mixing mechanism, an opening and closing mechanism, and a vibration mechanism;
[0006] The mixing tank includes a tank body and an elastic guide cover. The tank body is provided with a feed inlet and a mixing mechanism, which is used to mix the slurry inside the tank.
[0007] One end of the elastic material guide cover is connected to the barrel body, and the other end is provided with a discharge port, which communicates with the interior of the barrel body;
[0008] The opening and closing mechanism is connected to the elastic guide cover to open or close the discharge port;
[0009] The vibration mechanism is used to drive the elastic guide cover to vibrate and discharge material.
[0010] In a further embodiment, the opening and closing mechanism includes a pipe, a first driving element, and a sealing plate;
[0011] The pipe has an internal channel that communicates with the outlet. The first drive and the vibration mechanism are fixed to the outer wall of the pipe. The output end of the first drive is provided with the sealing plate. The pipe wall has a through hole, and the sealing plate passes through the through hole. The first drive is used to drive the sealing plate to reciprocate along the axial direction of the through hole to open or close the outlet.
[0012] In a further embodiment, a flexible bushing is also included, at least partially embedded in the through hole, and the sealing plate passes through the flexible bushing.
[0013] In a further embodiment, the first drive unit includes an electric cylinder and a controller;
[0014] The electric cylinder is fixedly installed on the outer wall of the pipe, the output end of the electric cylinder is connected to the sealing plate, and the controller is installed on the outer wall of the pipe and electrically connected to the electric cylinder.
[0015] In a further embodiment, the stirring mechanism includes a second driving member, a stirring shaft, and multiple sets of stirring blades. One end of the stirring shaft is located inside the barrel, and the other end of the stirring shaft extends outside the barrel and is connected to the output end of the second driving member. The multiple sets of stirring blades are staggered along the axial direction of the stirring shaft, and the stirring shaft and the stirring blades are detachably connected.
[0016] In a further embodiment, the stirring blade includes a bushing and blades. The bushing is fitted onto the stirring shaft, and the blades are arranged circumferentially on the outer wall of the stirring shaft. The bushing is provided with locking screws for fixing the blades.
[0017] In a further embodiment, the second driving component includes a servo motor, a driving helical gear, and a driven helical gear. The servo motor is fixedly mounted on the barrel body, the driving helical gear is fixedly mounted on the output end of the servo motor, and the driven helical gear is fixedly mounted on the stirring shaft. The driven helical gear meshes with the driving helical gear.
[0018] In a further embodiment, the barrel body is also provided with a sealing cap, which is detachably connected to the feed inlet.
[0019] In a further embodiment, the number of vibration mechanisms is multiple, and they are evenly distributed circumferentially on the outer wall of the pipe.
[0020] In a further embodiment, the elastic guide cover is provided with a material passage, which is connected to the discharge port. The width of the material passage gradually decreases from the end of the elastic guide cover connected to the barrel body to the discharge port.
[0021] And / or,
[0022] The stirring device also includes a fixing frame, which includes a base, a connecting ring, and multiple columns. The multiple columns are evenly distributed on the base, and the top of the multiple columns is connected to the connecting ring. The connecting ring is sleeved on the outer periphery of the barrel, and the inner wall of the connecting ring is fixedly connected to the outer wall of the barrel.
[0023] Compared with the prior art, the slurry mixing device of this utility model has the following advantages: the mixing tank includes a tank body and an elastic guide cover. The elastic guide cover is provided with a discharge port and is connected to an opening and closing mechanism. The opening and closing mechanism realizes the automatic opening or closing of the discharge port. The elastic guide cover is driven to vibrate rapidly by a vibration mechanism to avoid slurry blockage at the discharge port, improve the discharge efficiency of slurry, reduce slurry residue in the mixing device, and avoid slurry waste. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the slurry mixing device according to an embodiment of the present invention;
[0025] Figure 2 This is a schematic diagram of the structure of the second drive component of the slurry mixing device according to an embodiment of the present invention;
[0026] Figure 3 This is a schematic diagram of the structure of the stirring blades of the slurry stirring device according to an embodiment of the present invention;
[0027] Figure 4 This is a schematic diagram of the opening and closing mechanism of the slurry mixing device according to an embodiment of the present invention;
[0028] Figure 5 This is a cross-sectional view of the opening and closing mechanism of the slurry mixing device according to an embodiment of the present invention;
[0029] Figure 6 This is a cross-sectional view of the pipes of the slurry mixing device according to an embodiment of the present invention.
[0030] In the diagram, 1 is the mixing tank; 11 is the tank body; 111 is the feed inlet; 112 is the sealing cover; 113 is the top plate; 12 is the elastic guide cover; 121 is the discharge port; 122 is the opening; and 123 is the material passage.
[0031] 2. Stirring mechanism; 21. Second drive component; 211. Servo motor; 212. Drive helical gear; 213. Driven helical gear; 22. Stirring shaft; 23. Stirring blade; 231. Shaft sleeve; 232. Blade; 2311. Locking screw;
[0032] 3. Opening and closing mechanism; 31. Pipe; 311. Channel; 312. Through hole; 32. First driving component; 321. Electric cylinder; 322. Controller; 33. Sealing plate; 34. Flexible bushing;
[0033] 4. Vibration mechanism;
[0034] 5. Fixing frame; 51. Base; 52. Column; 53. Connecting ring. Detailed Implementation
[0035] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0036] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer" and other terms used in this utility model to indicate the orientation or positional relationship are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device and element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0037] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.
[0038] like Figure 1As shown in the figure, a slurry mixing device according to an embodiment of the present invention includes a mixing tank 1, a mixing mechanism 2, an opening and closing mechanism 3, and a vibration mechanism 4. The mixing tank 1 is used to hold slurry and includes a tank body 11 and an elastic guide cover 12. The interior of the tank body 11 and the interior of the elastic guide cover are connected. The tank body 11 has a feed inlet 111 and a mixing mechanism 2, which is used to mix the raw materials in the tank body 11 to form a slurry. One end of the elastic guide cover 12 is connected to the tank body 11, and the other end of the elastic guide cover 12 has a discharge outlet 121, which is connected to the interior of the tank body 11. Before mixing the raw materials, the raw materials need to be added through the feed inlet 111. When the raw materials in the tank body 11 reach a preset volume, the mixing mechanism 2 mixes the raw materials in the tank body 11 to form a slurry. To facilitate the control of opening and closing the discharge outlet 121, the elastic guide cover 12 is connected to the opening and closing mechanism 3. In order to improve the discharge efficiency of the slurry and avoid clogging of the discharge port 121 and slurry residue in the mixing tank 1, a vibration mechanism 4 is provided to drive the elastic guide cover 12 to vibrate and discharge the slurry.
[0039] In this embodiment, the barrel 11 is generally made of a rigid material (such as metal), and the elastic guide cover 12 is made of a flexible material (such as polyurethane). Due to the different materials of the barrel 11 and the elastic guide cover 12, the vibration amplitude of the elastic guide cover 12 is larger than that of the barrel 11. The vibration mechanism 4 drives the elastic guide cover 12 to vibrate rapidly, which prevents the slurry from adhering to the guide cover 12 at the discharge port 121 and causing blockage, thereby improving the discharge efficiency of the slurry, reducing the residue of the slurry in the mixing device, and avoiding slurry waste.
[0040] In some embodiments, to simplify the structure of the opening and closing mechanism 3, refer to Figure 4 , Figure 5 , Figure 6 The opening and closing mechanism 3 includes a pipe 31, a first driving member 32, and a sealing plate 33. The first driving member 32 and the vibration mechanism 4 are fixedly mounted on the outer wall of the pipe 31. The sealing plate 33 is located at the output end of the first driving member 32. A channel 311 is provided inside the pipe 31, communicating with the outlet 121. To open or close the inlet 111, a through hole 312 is formed in the pipe wall of the pipe 31. The sealing plate 33 passes through the through hole 312. The first driving member 32 drives the sealing plate 33 to reciprocate along the axial direction of the through hole 312, thereby opening or closing the outlet 121. In some embodiments, when the outlet 121 is square, the channel 311 in the pipe 311 has a square cross-section, and two opposite pipe walls in the pipe 311 have through holes 312.
[0041] In some embodiments, to facilitate material discharge and prevent slurry residue at the connection between the discharge port 121 and the channel 311, the cross-sectional shapes of the discharge port 121 and the channel 311 in the axial direction of the barrel 11 are identical, and their cross-sectional dimensions should not differ too much. Therefore, the cross-sections of the discharge port 121 and the channel 311 can be triangular, rectangular, circular, elliptical, or other shapes. In this embodiment, for ease of processing, both the discharge port 121 and the channel 311 are rectangular. In some embodiments, to facilitate the design of the shape of the elastic guide cover 12 and to facilitate material guidance, the elastic guide cover 12 is provided with a passage 123, which communicates with the discharge port 121. From the section where the elastic guide cover 12 is connected to the barrel 11 to the discharge port 121, the width of the passage 123 gradually narrows, which facilitates slurry discharge. In this embodiment, in order to facilitate the processing of the elastic guide cover 12, the elastic guide cover 12 is an inverted hollow frustum. The hollow part of the hollow frustum is the material passage 123. The end with the larger inner diameter of the hollow frustum is connected to the barrel 11, and the end with the smaller inner diameter of the hollow frustum is provided with a discharge port 121. The shape of the elastic guide cover 12 can also be adapted to meet actual production needs.
[0042] In some embodiments, when the first driving member 32 drives the sealing plate 33 to close the outlet 121, the slurry overflows from the gap between the sealing plate 33 and the through hole 312. Therefore, in this embodiment, referring to... Figure 4 , Figure 5 , Figure 6 The opening and closing mechanism 3 also includes a flexible bushing 34, which is at least partially embedded in the through hole 312. The sealing plate 33 is inserted into the flexible bushing 34. The flexible bushing 34 is made of rubber or silicone material to seal the gap between the sealing plate 33 and the through hole 312 and prevent the slurry from overflowing.
[0043] In some embodiments, to facilitate the design of the first driving component 32, the first driving component 32 includes an electric cylinder 321 and a controller 322. The electric cylinder 321 is fixedly mounted on the outer wall of the pipe 31, and its output end is connected to the sealing plate 33. The controller 322 is mounted on the outer wall of the pipe 31 and electrically connected to the electric cylinder 321. The controller 322 can control the movement speed and stroke of the sealing plate 33 driven by the electric cylinder 321, thereby controlling the opening and closing rate of the discharge port 121. In a further embodiment, the vibration mechanism 4 is a standard component that can be directly purchased, reducing design and processing costs. Specifically, the vibration mechanism 4 can be a vibration motor, which is fixedly mounted on the outer wall of the pipe 31. In some embodiments, to ensure uniform vibration distribution at all points of the discharge port 121, multiple vibration mechanisms 4 are used, evenly distributed circumferentially on the outer wall of the pipe 31. In other embodiments, the vibration mechanism 4 can also be directly fixed on the elastic guide cover 12, and its installation position can be adjusted according to actual design requirements.
[0044] In some embodiments, to simplify the structure of the stirring mechanism 2, the stirring mechanism 2 includes a second drive member 21, a stirring shaft 22, and multiple sets of stirring blades 23, see reference. Figure 1 , Figure 2 , Figure 3 One end of the stirring shaft 22 is located inside the tank body 11, and the other end of the stirring shaft 22 extends outside the tank body 11 and is connected to the output end of the second drive component 21. In order to improve the stirring efficiency and the uniformity of slurry dispersion, multiple sets of stirring blades 23 are staggered along the axial direction of the stirring shaft 22. At the same time, in order to facilitate the disassembly and replacement of the stirring shaft 22 and the stirring blades 23, the stirring shaft 22 and the stirring blades 23 are detachably connected.
[0045] Specifically, see Figure 3 The stirring blade 23 includes a bushing 231 and blades 232. The bushing 231 is fitted onto the stirring shaft 22, and the blades 232 are circumferentially distributed on the outer wall of the stirring shaft 22. In some embodiments, to ensure uniform force distribution during stirring of the raw materials in the tank 11, the blades 232 are evenly distributed circumferentially on the outer wall of the stirring shaft 22. The bushing 231 is provided with locking screws 2311 for fixing the blades 232. In this embodiment, the locking screws 2311 are arranged radially along the bushing 231. When the blades 232 are fixed, one end of the locking screws 2311 abuts against the side wall of the stirring shaft 22.
[0046] In a further embodiment, to facilitate the design of the second drive component 21, ensure precise control of the stirring speed during raw material stirring, and improve the structural stability of the second drive component 21 during stirring, see [reference needed]. Figure 2 The second driving component 21 includes a servo motor 211, a driving helical gear 212, and a driven helical gear 213. The servo motor 211 is fixedly mounted on the barrel 11, the driving helical gear 212 is fixedly mounted on the output end of the servo motor 211, and the driven helical gear 213 is fixedly mounted on the stirring shaft 22. The driven helical gear 213 meshes with the driving helical gear 212. When it is necessary to stir the raw materials in the barrel 11 to form a slurry, the servo motor 211 drives the driving helical gear 212 to rotate, which in turn drives the driven helical gear 213 and the stirring shaft 22 to rotate, so that the stirring blades 23 stir the raw materials in the barrel 11. By using the servo motor 211, the rotation speed of the stirring blades 23 can be precisely controlled, improving the stability of the raw material stirring. The gear meshing structure improves the overall structural stability of the second driving component 21.
[0047] In a further embodiment, to facilitate the addition of raw materials to the mixing tank 1 and to prevent external impurities from entering the mixing tank 1 after the raw materials have been added, the tank body 11 is also provided with a sealing cap 112, which is detachably connected to the feed inlet 111. In some embodiments, the sealing cap 112 and the feed inlet 111 can be connected by threads, or the sealing cap 112 is made of soft materials such as rubber or silicone, and the sealing cap 112 is provided with a plug (not shown in the figure) corresponding to the feed inlet 111, which is placed inside the feed inlet 111 to achieve a seal. In some embodiments, to facilitate the processing of the tank body 11, see [reference needed]. Figure 1 The barrel body 11 is welded together from an annular cylinder and a top plate 113, and the feed inlet 111 is located on the top plate 113.
[0048] In some embodiments, to ensure the overall stability of the stirring device and facilitate the fixing of the stirring tank 1, the stirring device further includes a fixing frame 5. Specifically, the fixing frame 5 includes a base 51, multiple columns 52, and a connecting ring 53. The columns 52 mainly serve a supporting function. To ensure uniform force distribution on the multiple columns 52, the columns 52 are evenly distributed on the base 51. The top of each column 52 is provided with a connecting ring 53, which is sleeved on the outer periphery of the tank 11. The inner wall of the connecting ring 53 is fixedly connected to the outer wall of the tank 11. For details, refer to... Figure 1 In this embodiment, the bottom of the column 52 is provided with a flange for screw connection with the base 51, the top of the column 52 is welded and fixed to the connecting ring 53, and the inner wall of the connecting ring 53 is also welded and fixed to the outer wall of the barrel 11 to improve the connection strength.
[0049] The working process of this utility model is as follows: First, the opening and closing mechanism 3 closes the discharge port 121, and the raw material is added from the feed port 111. After the preset volume of raw material is added into the barrel, the feed port 111 is closed. The stirring mechanism 2 stirs the raw material in the barrel 11. After the raw material is mixed evenly, a slurry is formed. The vibration mechanism 4 drives the elastic guide cover 12 to vibrate. At this time, the opening and closing mechanism 3 opens the discharge port 121 to discharge the slurry.
[0050] In summary, this utility model embodiment provides a slurry mixing device. The mixing tank 1 includes a tank body 11 and an elastic guide cover 12. The elastic guide cover 12 is provided with a discharge port 121 and is connected to an opening and closing mechanism 3. The opening and closing mechanism 3 realizes the automatic opening or closing of the discharge port 121. The vibration mechanism 4 drives the elastic guide cover 12 to vibrate rapidly, which avoids the slurry from clogging the discharge port 121, improves the discharge efficiency of the slurry, reduces the residue of slurry in the mixing device, and avoids slurry waste.
[0051] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.
Claims
1. A slurry mixing device, characterized in that: It includes a mixing tank (1), a mixing mechanism (2), an opening and closing mechanism (3), and a vibration mechanism (4); The mixing tank (1) includes a tank body (11) and an elastic guide cover (12). The tank body (11) is provided with a feed inlet (111). The tank body (11) is provided with the mixing mechanism (2). The mixing mechanism (2) is used to mix the raw materials in the tank body (11). One end of the elastic guide cover (12) is connected to the barrel body (11), and the other end is provided with a discharge port (121), which is in communication with the interior of the barrel body (11); The opening and closing mechanism (3) is connected to the elastic guide cover (12) for opening or closing the discharge port (121). The vibration mechanism (4) is used to drive the elastic guide cover (12) to vibrate and discharge material.
2. The slurry mixing device as described in claim 1, characterized in that: The opening and closing mechanism (3) includes a pipe (31), a first driving component (32), and a sealing plate (33); The pipe (31) is provided with a channel (311), which is connected to the outlet (121); the first driving member (32) and the vibration mechanism (4) are fixedly installed on the outer wall of the pipe (31), the output end of the first driving member (32) is provided with the sealing plate (33), the pipe wall of the pipe (31) is provided with a through hole (312), the sealing plate (33) is inserted in the through hole (312), the first driving member (32) is used to drive the sealing plate (33) to reciprocate along the axial direction of the through hole (312), and to open or close the outlet (121).
3. The slurry mixing device as described in claim 2, characterized in that: It also includes a flexible bushing (34), at least partially embedded in the through hole (312), and the sealing plate (33) passing through the flexible bushing (34).
4. The slurry mixing device as described in claim 2, characterized in that: The first driving component (32) includes an electric cylinder (321) and a controller (322); The electric cylinder (321) is fixedly installed on the outer wall of the pipe (31). The output end of the electric cylinder (321) is connected to the sealing plate (33). The controller (322) is installed on the outer wall of the pipe (31) and electrically connected to the electric cylinder (321).
5. The slurry mixing device as described in claim 1, characterized in that: The stirring mechanism (2) includes a second driving member (21), a stirring shaft (22) and multiple sets of stirring blades (23). One end of the stirring shaft (22) is located inside the barrel (11), and the other end of the stirring shaft (22) extends outside the barrel (11) and is connected to the output end of the second driving member (21). The multiple sets of stirring blades (23) are staggered along the axial direction of the stirring shaft (22), and the stirring shaft (22) and the stirring blades (23) are detachably connected.
6. The slurry mixing device as described in claim 5, characterized in that: The stirring blade (23) includes a bushing (231) and a blade (232). The bushing (231) is sleeved on the stirring shaft (22). The blade (232) is arranged circumferentially on the outer wall of the stirring shaft (22). The bushing (231) is provided with a locking screw (2311) for fixing the blade (232).
7. The slurry mixing device as described in claim 5, characterized in that: The second driving component (21) includes a servo motor (211), an active helical gear (212), and a driven helical gear (213). The servo motor (211) is fixedly mounted on the barrel body (11), the active helical gear (212) is fixedly mounted on the output end of the servo motor (211), and the driven helical gear (213) is fixedly mounted on the stirring shaft (22). The driven helical gear (213) meshes with the active helical gear (212).
8. The slurry mixing device as described in claim 1, characterized in that: The barrel (11) is also provided with a sealing cover (112), which is detachably connected to the feed inlet (111).
9. The slurry mixing device as described in claim 2, characterized in that: The vibration mechanism (4) is multiple and is evenly distributed around the outer wall of the pipe (31).
10. The slurry mixing device as described in claim 1, characterized in that: The elastic guide cover (12) is provided with a material passage (123), which is connected to the discharge port (121); the width of the material passage (123) gradually decreases from the end of the elastic guide cover (12) connected to the barrel (11) to the discharge port (121); And / or, The stirring device also includes a fixing frame (5), which includes a base (51), a connecting ring (53) and multiple columns (52); the multiple columns (52) are evenly distributed on the base (51), and the top of the multiple columns (52) is connected to the connecting ring (53). The connecting ring (53) is sleeved on the outer periphery of the barrel (11), and the inner wall of the connecting ring (53) is fixedly connected to the outer wall of the barrel (11).