Slurry mixing device for production of positive and negative plates

Abstract

The utility model relates to the technical field of positive and negative pole piece production, in particular to a slurry mixing device for positive and negative pole piece production, which comprises a material storage mechanism for storing materials, a stirring mechanism for stirring and mixing various materials is mounted on the material storage mechanism, and the stirring mechanism comprises a fixed frame mounted above the material storage mechanism. A lifting assembly is installed above the fixing frame, a second motor is fixed to the lifting assembly, the output end of the second motor is connected with a rotating shaft, and stirring blades are fixed to the outer diameter of the rotating shaft. The stirring mechanism is arranged, the lifting assembly and the second motor are started after materials are added, the second motor operates to drive the rotating shaft and the stirring blades to rotate, the stirring blades rotate to stir and mix the materials, and meanwhile the lifting assembly operates to drive the stirring blades to ascend and descend. After discharging is completed, only a small amount of materials are left on the rotating shaft and the stirring blades, and therefore the residual quantity of the materials is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of positive and negative electrode production technology, and in particular to a slurry mixing device for positive and negative electrode production. Background Technology

[0002] The production of positive and negative electrode sheets for lithium batteries involves steps such as material preparation, coating, shearing, and assembly. Material preparation is the process of mixing positive and negative electrode materials with other auxiliary materials to form a uniform slurry. The mixing of positive and negative electrode materials with other auxiliary materials is a liquid mixing method.

[0003] Announcement No. (CN220496177U) discloses a slurry mixing device for producing positive and negative electrode sheets of lithium batteries. The device uses a servo motor to drive two rotating disks, causing a third gear to rotate under the action of a fixed gear ring. This, in turn, causes the first bevel gear and the rotating wheel to rotate, resulting in the rotation of one end of the eccentric rod. Since the length of the eccentric rod is fixed, the end of the eccentric rod hinged to the swing rod will swing up and down, causing the swing rod located outside the rotating disk to also swing. During use, some material enters the upper rotating disk, making it difficult to discharge. This leads to an increase in residual material in the mixing tank, requiring improvement. Utility Model Content

[0004] The purpose of this invention is to provide a paste mixing device for producing positive and negative electrode sheets in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A slurry mixing device for producing positive and negative electrode sheets includes a material storage mechanism for storing materials, and a stirring mechanism for mixing multiple materials is installed on the material storage mechanism.

[0007] The mixing mechanism includes a fixed frame installed above the storage mechanism, a lifting assembly installed above the fixed frame, a second motor fixed on the lifting assembly, a rotating shaft connected to the output end of the second motor, and a mixing blade fixed on the outer diameter of the rotating shaft.

[0008] Preferably, the lifting assembly includes a fixed box mounted on the upper surface of a fixed frame, a vertical plate fixed on the upper surface of the fixed box, a first motor mounted on the rear surface of the vertical plate, a rotating disk connected to the output end of the first motor, a rotating rod fixed on the front surface of the rotating disk, a fixed shaft mounted on the front surface of the vertical plate, a swing frame rotatably mounted on the end of the fixed shaft away from the vertical plate, a movable rod slidably mounted on the fixed box, a rack connected to the upper end face of the movable rod, a movable seat connected to the lower end face of the movable rod, a lifting frame slidably mounted on the movable seat, and a lifting shell fixed below the lifting frame.

[0009] Preferably, the length of the lowest stirring blade is shorter than the length of the other stirring blades.

[0010] Preferably, the rotating rod is slidably connected to the swing frame.

[0011] Preferably, the swing frame is engaged with the rack.

[0012] Preferably, the lifting frame and the fixed box are slidably connected.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] By setting up a stirring mechanism, after the material is added, the lifting component and the second motor are started. The second motor drives the rotating shaft and the stirring blade to rotate. The rotating blade stirs and mixes the material. At the same time, the lifting component moves the stirring blade up and down. By using the above method to stir and mix the material, only a small amount of material remains on the rotating shaft and the stirring blade after the material is discharged, thus effectively reducing the amount of material residue. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the slurry mixing device for producing positive and negative electrode sheets according to the present invention;

[0017] Figure 2 This is a front view of a slurry mixing device for producing positive and negative electrode sheets according to this utility model;

[0018] Figure 3 This is a cross-sectional view of the material cylinder in a slurry mixing device for producing positive and negative electrode sheets according to this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the vertical plate in the slurry mixing device for producing positive and negative electrode sheets according to this utility model;

[0020] Figure 5 This is a cross-sectional view of the fixed box in the slurry mixing device for producing positive and negative electrode sheets according to this utility model;

[0021] Figure 6 This is a schematic diagram of the movable rod in a slurry mixing device for producing positive and negative electrode sheets according to this utility model;

[0022] Figure 7This is a schematic diagram of the lifting frame in a slurry mixing device for producing positive and negative electrode sheets according to this utility model.

[0023] The annotations in the attached figures are explained as follows:

[0024] 1. Material storage mechanism; 101. Material cylinder; 102. Feed pipe; 103. Discharge pipe; 2. Mixing mechanism; 201. Fixed frame; 202. Fixed box; 203. Vertical plate; 204. First motor; 205. Rotating disc; 206. Rotating rod; 207. Fixed shaft; 208. Swing frame; 209. Movable rod; 210. Rack; 211. Movable seat; 212. Lifting frame; 213. Lifting shell; 214. Second motor; 215. Rotating shaft; 216. Mixing blade. Detailed Implementation

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] like Figures 1-7 As shown, a slurry mixing device for producing positive and negative electrode sheets includes a material storage mechanism 1 for storing materials, and a stirring mechanism 2 for mixing various materials is installed on the material storage mechanism 1.

[0029] In this utility model, the material storage mechanism 1 includes a material cylinder 101, a feed pipe 102 fixed on the material cylinder 101, and a discharge pipe 103 fixed below the material cylinder 101. When using the device, the material is added into the material cylinder 101 through the feed pipe 102. After the material is mixed, the valve on the discharge pipe 103 is opened and the material is discharged through the discharge pipe 103.

[0030] In this utility model, the stirring mechanism 2 includes a fixing frame 201 mounted on the upper surface of the material cylinder 101, a fixing box 202 mounted above the fixing frame 201, a vertical plate 203 fixed on the upper surface of the fixing box 202, a first motor 204 disposed on the rear surface of the vertical plate 203, a rotating disk 205 connected to the output end of the first motor 204, a rotating rod 206 fixed on the front surface of the rotating disk 205, and a fixing shaft 207 disposed on the front surface of the vertical plate 203. The fixing shaft 207 is located away from the vertical plate 203. A swing frame 208 is rotatably mounted on the end of the fixed box 202. A movable rod 209 is slidably mounted on the fixed box 202. A rack 210 is connected to the upper end face of the movable rod 209, and a movable seat 211 is connected to the lower end face of the movable rod 209. A lifting frame 212 is slidably mounted on the movable seat 211. A lifting shell 213 is fixed below the lifting frame 212. A second motor 214 is mounted on the bottom surface of the inner cavity of the lifting shell 213. A rotating shaft 215 is connected to the output end of the second motor 214, and a stirring blade 21 is fixed to the outer diameter of the rotating shaft 215. 6; The rotating rod 206 is slidably connected to the swing frame 208, and the swing frame 208 is meshed with the rack 210. The length of the lowest stirring blade 216 is less than the length of the other stirring blades 216. When stirring begins, the first motor 204 and the second motor 214 are started. The second motor 214 drives the rotating shaft 215 and the stirring blades 216 to rotate. The rotating blades 216 stir and mix the materials. The first motor 204 drives the rotating disk 205 and the rotating rod 206 to rotate. The rotating rod 206 drives the swing frame 208 to swing around the fixed shaft 207. The swing frame 208 swings and drives the rack 210 to move left and right. The movable rod 209 and the movable seat 211 move left and right accordingly. The movable seat 211 moves left and right and drives the lifting frame 212 and the lifting shell 213 to rise and fall. The stirring blades 216 rise and fall accordingly. The materials are stirred and mixed in the above manner. After the material is discharged, only a small amount of material remains on the rotating shaft 215 and the stirring blades 216, thus effectively reducing the amount of material residue.

[0031] In the above structure: When using the device, the material is added into the material cylinder 101 through the feed pipe 102. After the material is added, the first motor 204 and the second motor 214 are started. The second motor 214 drives the rotating shaft 215 and the stirring blade 216 to rotate. The stirring blade 216 rotates to stir and mix the material. The first motor 204 drives the rotating disk 205 and the rotating rod 206 to rotate. The rotating rod 206 rotates to drive the swing frame 208 to swing around the fixed shaft 207. The swing frame 208 swings to drive the rack 210 to move left and right. The movable rod 209 and the movable seat 211 move left and right accordingly. The movable seat 211 moves left and right to drive the lifting frame 212 and the lifting shell 213 to rise and fall. The stirring blade 216 rises and falls accordingly. After the material is mixed, the valve on the discharge pipe 103 is opened, and the material is discharged through the discharge pipe 103.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A paste-mixing device for producing positive and negative electrode sheets, characterized in that: It includes a storage mechanism (1) for storing materials, and a stirring mechanism (2) for mixing multiple materials is installed on the storage mechanism (1); The stirring mechanism (2) includes a fixed frame (201) installed above the storage mechanism (1), a lifting assembly is installed above the fixed frame (201), a second motor (214) is fixed on the lifting assembly, the output end of the second motor (214) is connected to a rotating shaft (215), and a stirring blade (216) is fixed on the outer diameter of the rotating shaft (215).

2. The paste-mixing device for producing positive and negative electrode sheets according to claim 1, characterized in that: The lifting assembly includes a fixed box (202) mounted on the upper surface of the fixed frame (201), a vertical plate (203) fixed on the upper surface of the fixed box (202), a first motor (204) disposed on the rear surface of the vertical plate (203), a rotating disk (205) connected to the output end of the first motor (204), a rotating rod (206) fixed on the front surface of the rotating disk (205), and a fixed shaft (207) disposed on the front surface of the vertical plate (203). A swing frame (208) is rotatably mounted on one end of the fixed shaft (207) away from the upright plate (203). A movable rod (209) is slidably mounted on the fixed box (202). A rack (210) is connected to the upper end face of the movable rod (209). A movable seat (211) is connected to the lower end face of the movable rod (209). A lifting frame (212) is slidably mounted on the movable seat (211). A lifting shell (213) is fixed below the lifting frame (212).

3. The paste-mixing device for producing positive and negative electrode sheets according to claim 1, characterized in that: The length of the lowest stirring blade (216) is less than the length of the other stirring blades (216).

4. The paste-mixing device for producing positive and negative electrode sheets according to claim 2, characterized in that: The rotating rod (206) is slidably connected to the swing frame (208).

5. A paste-mixing device for producing positive and negative electrode sheets according to claim 2, characterized in that: The swing frame (208) is engaged with the rack (210).

6. The paste-mixing device for producing positive and negative electrode sheets according to claim 2, characterized in that: The lifting frame (212) is slidably connected to the fixed box (202).

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