Lithium cell batching equipment

Abstract

The utility model relates to the technical field of lithium batteries, in particular to lithium battery cell batching equipment which comprises a base, a material storage tank lower part and a material storage tank upper part, the upper side of the base is fixedly connected with a mixing tank, and the upper side of a feeding port of the mixing tank is fixedly connected with a feeding valve. Through the arrangement of the pressure sensor, the storage tank lower parts, the storage tank upper parts, the support frame and the filter screen, the device can respectively feed a large amount of solid raw materials or liquid raw materials into a sealing tank formed by the plurality of storage tank lower parts and the plurality of storage tank upper parts at one time; the whole weight of the lower portion and the upper portion of the material storage tank is measured in real time through the pressure sensor, different raw materials can be accurately put into the mixing tank according to a preset value, the raw materials can be filtered through the supporting frame and the filter screen, the caked raw materials or foreign matter are intercepted, the raw materials do not need to be manually weighed, and the raw material weighing efficiency is improved. The accuracy is high, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, and specifically relates to a lithium battery core batching device. Background Art

[0002] A lithium-ion battery core is composed of five parts: a positive electrode, a negative electrode, a separator, an electrolyte, and a casing. The electrolyte is a solution made by dissolving lithium hexafluorophosphate in a variety of mixed solvents. When producing a lithium-ion battery core, it is necessary to quantitatively inject the pre-prepared electrolyte into the battery core casing, and a lithium battery core batching device is required to prepare the electrolyte.

[0003] The lithium battery core batching device can drive a stirring rod to rotate through a motor to evenly mix the raw materials previously put into a mixing tank. Some existing lithium battery core batching devices require manual weighing of different raw materials and then putting various raw materials into the mixing tank. This method is time-consuming and laborious, and has a high error rate. Therefore, a lithium battery core batching device is proposed for the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a lithium battery core batching device to solve the problem that some existing lithium battery core batching devices require manual weighing of different raw materials and then putting various raw materials into the mixing tank, which is time-consuming and laborious and has a high error rate.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A lithium battery core batching device includes a base, a lower part of a storage tank, and an upper part of a storage tank. The upper side of the base is fixedly connected with a mixing tank. A feeding valve is fixedly connected above the feeding port of the mixing tank. A discharging valve is fixedly connected in front of the discharging port of the mixing tank. A discharging pipe is fixedly connected in front of the discharging valve. A driving motor is fixedly connected to the top of the mixing tank. A stirring frame is fixedly connected to the lower side of the main shaft of the driving motor. A plurality of brackets are fixedly connected to the upper side of the base. A group of support shafts are fixedly connected to the upper side of each bracket. A group of pressure sensors are fixedly connected to the upper side of each group of support shafts. The lower part of the storage tank is fixedly connected to the upper side of each group of pressure sensors. The upper part of the storage tank is screwed to the upper side of the lower part of the storage tank. A feeding valve is fixedly connected above the feeding port of the upper part of the storage tank. A discharging valve is fixedly connected below the discharging port of the lower part of the storage tank. A flexible connecting pipe is fixedly connected to the lower side of each discharging valve. The lower sides of the flexible connecting pipes are fixedly connected to the feeding valves. A group of mounting shafts are fixedly connected to the inner sides of the lower parts of the storage tanks. A first limiting ring is fixedly connected to the relative inner sides of each group of mounting shafts. A second limiting ring is fixedly connected to the inner sides of the upper parts of the storage tanks. A support frame is arranged between the first limiting ring and the second limiting ring. A filter screen is fixedly connected to the inner side of the support frame.

[0007] Preferably, a plurality of uniformly distributed feeding ports are provided at the top of the mixing tank, a discharging port is provided at the front side of the mixing tank, the stirring frame is composed of a rotating shaft and stirring rods, and a plurality of horizontally distributed stirring rods are fixedly connected to the outer side of the rotating shaft of the stirring frame.

[0008] Preferably, the tops of the brackets are all on the same horizontal plane as the top of the mixing tank, there are multiple groups of the support shafts and the pressure sensors, each group of the support shafts and the pressure sensors has three, a discharging port is provided at the lower side of the lower part of the storage tank, and a feeding port is provided at the upper side of the upper part of the storage tank.

[0009] Preferably, the discharging valves are all directly above the feeding valves, there are multiple groups of the mounting shafts, each group of the mounting shafts has four, the mounting shafts are all horizontally distributed cylindrical shafts, and the first limiting ring and the second limiting ring are symmetrically distributed up and down.

[0010] Preferably, four limiting grooves are provided on the inner sides of the first limiting ring and the second limiting ring, four limiting protrusions are provided on the outer sides of the support frames, the support frames are all vertically symmetric cylindrical frames, and the filter nets are all cylindrical mesh sleeves with open tops.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] In the present utility model, through the pressure sensors, the lower part of the storage tank, the upper part of the storage tank, the support frame and the filter net provided, the device can respectively input a large amount of solid raw materials or liquid raw materials into the sealed tank formed by the lower parts and the upper parts of multiple storage tanks at one time. By measuring the overall weight of the lower part and the upper part of the storage tank in real time through the pressure sensors, different raw materials can be accurately input into the mixing tank according to the preset values, and the raw materials can be filtered through the support frame and the filter net, and the agglomerated raw materials or foreign matters can be intercepted. The support frame and the filter net can be taken out for cleaning or replacement. The device does not require manual weighing of the raw materials, has a high accuracy rate, and is time-saving and labor-saving. Description of the Drawings

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is a schematic diagram of the installation structure of the mixing tank of the present utility model;

[0015] Figure 3 is a sectional view of the installation structure of the mixing tank of the present utility model;

[0016] Figure 4 is a schematic diagram of the installation structure of the storage tank of the present utility model;

[0017] Figure 5This is a sectional view of the installation structure of the storage tank of the present utility model;

[0018] Figure 6 This is a schematic diagram of the installation structure of the limit ring of the present utility model;

[0019] Figure 7 This is a schematic diagram of the installation structure of the filter net of the present utility model.

[0020] In the figure: 1. Base; 2. Mixing tank; 3. Feeding valve; 4. Discharging valve; 5. Discharge pipe; 6. Driving motor; 7. Stirring frame; 8. Support; 9. Support shaft; 10. Pressure sensor; 11. Lower part of the storage tank; 12. Upper part of the storage tank; 13. Feed valve; 14. Discharge valve; 15. Flexible connection pipe; 16. Installation shaft; 17. First limit ring; 18. Second limit ring; 19. Support frame; 20. Filter net. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Without contrary explanations, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the protection scope of the present utility model; the orientation words "inside, outside" refer to the inside and outside relative to the outline of each component itself.

[0023] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Without otherwise stating, these words have no special meanings, and therefore cannot be understood as limiting the protection scope of the present utility model.

[0024] Please refer to Figure 1-7 , the present utility model provides a technical solution:

[0025] A lithium battery core batching device, including a base 1, a lower part 11 of a storage tank, and an upper part 12 of a storage tank. The upper side of the base 1 is fixedly connected with a mixing tank 2. The upper sides of the feeding ports of the mixing tank 2 are all fixedly connected with feeding valves 3. The front side of the discharging port of the mixing tank 2 is fixedly connected with a discharging valve 4. The front side of the discharging valve 4 is fixedly connected with a discharging pipe 5. The top of the mixing tank 2 is fixedly connected with a driving motor 6. The lower side main shaft of the driving motor 6 is fixedly connected with a stirring frame 7. The upper side of the base 1 is fixedly connected with a plurality of supports 8. The upper sides of the supports 8 are all fixedly connected with a group of support shafts 9. The upper sides of each group of support shafts 9 are all fixedly connected with a group of pressure sensors 10. The upper sides of each group of pressure sensors 10 are all fixedly connected with the lower part 11 of the storage tank. The upper sides of the lower parts 11 of the storage tank are all connected with the upper parts 12 of the storage tank by screw connection. The upper sides of the feeding ports of the upper parts 12 of the storage tank are all fixedly connected with feeding valves 13. The lower sides of the discharging ports of the lower parts 11 of the storage tank are all fixedly connected with discharging valves 14. The lower sides of the discharging valves 14 are all fixedly connected with flexible connecting pipes 15. The lower sides of the flexible connecting pipes 15 are all fixedly connected with the feeding valves 3. The inner sides of the lower parts 11 of the storage tank are all fixedly connected with a group of mounting shafts 16. The relative inner sides of each group of mounting shafts 16 are all fixedly connected with a first limiting ring 17. The inner sides of the upper parts 12 of the storage tank are all fixedly connected with a second limiting ring 18. A support frame 19 is arranged between the first limiting ring 17 and the second limiting ring 18. The inner side of the support frame 19 is fixedly connected with a filter screen 20.

[0026] The top of the mixing tank 2 is provided with a plurality of uniformly distributed feeding ports. The front side of the mixing tank 2 is provided with a discharging port. The stirring frame 7 is composed of a rotating shaft and stirring rods. A plurality of horizontally distributed stirring rods are fixedly connected to the outer side of the rotating shaft of the stirring frame 7. The stirring frame 7 can fully stir the raw materials in the mixing tank 2. The tops of the supports 8 and the top of the mixing tank 2 are located on the same horizontal plane. There are multiple groups of support shafts 9 and pressure sensors 10. Each group of support shafts 9 and pressure sensors 10 has three. The lower side of the lower part 11 of the storage tank is provided with a discharging port. The upper side of the upper part 12 of the storage tank is provided with a feeding port. The lower part 11 of the storage tank and the upper part 12 of the storage tank can form a sealed tank to store the raw materials. The discharging valves 14 are all directly above the feeding valves 3. There are multiple groups of mounting shafts 16. Each group of mounting shafts 16 has four. The mounting shafts 16 are all horizontally distributed cylindrical shafts. The first limiting ring 17 and the second limiting ring 18 are symmetrically distributed up and down. The first limiting ring 17 and the second limiting ring 18 can clamp the support frame 19 and the filter screen 20. Four limiting grooves are arranged on the inner sides of the first limiting ring 17 and the second limiting ring 18. Four limiting protrusions are arranged on the outer sides of the support frame 19. The support frames 19 are all vertically symmetric cylindrical frames. The filter screens 20 are all cylindrical mesh sleeves with open tops. The filter screens 20 can filter the raw materials put into the lower part 11 and the upper part 12 of the storage tank.

[0027] Workflow: Before use, fix the device on the workbench and connect the power supply. The feeding valve 3, discharging valve 4, driving motor 6, pressure sensor 10, feeding valve 13, and discharging valve 14 of this device are all electrical appliances. This device is equipped with an external controller, and the external controller of this device is electrically connected to the feeding valve 3, discharging valve 4, driving motor 6, pressure sensor 10, feeding valve 13, and discharging valve 14 respectively. Manually operating the external controller can adjust the operating states of the feeding valve 3, discharging valve 4, driving motor 6, pressure sensor 10, feeding valve 13, and discharging valve 14. The above are all prior arts. When using this device, first open the feeding valve 13 through the external controller, and put different solid raw materials or liquid raw materials into the sealed tank formed by the lower part 11 and the upper part 12 of the storage tank respectively. The inside of the lower part 11 of the storage tank is connected with a first limiting ring 17 through a mounting shaft 16, and the inside of the upper part 12 of the storage tank is connected with a second limiting ring 18. The support frame 19 can be clamped and limited by the first limiting ring 17 and the second limiting ring 18. The upper side of the first limiting ring 17 is in close contact with the support frame 19, and the lower side of the second limiting ring 18 is in close contact with the support frame 19. A filter screen 20 is connected to the inner side of the support frame 19. Therefore, when adding raw materials, the raw materials can be filtered through the filter screen 20, and the agglomerated raw materials or foreign objects can be intercepted. At the same time, the lower part 11 and the upper part 12 of the storage tank are connected by a spiral connection. Removing the upper part 12 of the storage tank from the lower part 11 of the storage tank can replace the support frame 19 and the filter screen 20, and a filter screen 20 with a suitable sieve hole size can be selected according to the requirements of different raw materials. After the raw materials are added, close the feeding valve 13, fix the pressure sensor 10 at a suitable height through the bracket 8 and the support shaft 9, and measure the overall weight of the lower part 11 and the upper part 12 of the storage tank in real time through the pressure sensor 10. Since the discharging valve 14 is fixedly connected to the feeding valve 3 through a flexible connecting pipe 15, the flexible connecting pipe 15 is a bendable plastic thin pipe, and the length of the flexible connecting pipe 15 is greater than the distance between the discharging valve 14 and the feeding valve 3, the flexible connecting pipe 15 will not affect the measurement data of the pressure sensor 10. Open the feeding valve 3 and the discharging valve 14, and the raw materials in the lower part 11 and the upper part 12 of the storage tank fall into the mixing tank 2 through the flexible connecting pipe 15. Preset the required weights of different raw materials through the external controller. When the pressure sensor 10 detects that the change difference in the overall weight of the lower part 11 and the upper part 12 of the storage tank reaches the preset value, the pressure sensor 10 sends a signal to the external controller, and the external controller automatically closes the discharging valve 14. Through this method, different raw materials can be accurately put into the mixing tank 2 on the upper side of the base 1. After the feeding is completed, close the feeding valve 3, start the driving motor 6, drive the stirring frame 7 to rotate through the driving motor 6, stir the raw materials through the stirring frame 7 to make the raw materials evenly mixed, and then open the discharging valve 4. The produced electrolyte can be released through the discharging pipe 5;The device can separately input a large amount of solid raw materials or liquid raw materials into the sealed tank formed by the lower part 11 and the upper part 12 of the storage tank at one time. By using the pressure sensor 10 to measure the overall weight of the lower part 11 and the upper part 12 of the storage tank in real time, different raw materials can be accurately input into the mixing tank 2 according to the preset value. When the raw materials are added to the base 1 and the upper part 12 of the storage tank, the raw materials are filtered by the support frame 19 and the filter screen 20 clamped by the first limiting ring 17 and the second limiting ring 18, and the caked raw materials or foreign matters can be intercepted. The support frame 19 and the filter screen 20 can be taken out from the lower part 11 and the upper part 12 of the storage tank regularly to clean the support frame 19 and the filter screen 20, or the filter screen 20 with a suitable sieve hole size can be replaced according to needs. This device does not require manual weighing of raw materials, has a high accuracy rate, and is time-saving and labor-saving.

[0028] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lithium battery core batching device, comprising a base (1), a lower part of a storage tank (11) and an upper part of the storage tank (12), characterized in that: The upper side of the base (1) is fixedly connected with a mixing tank (2). The upper sides of the feeding ports of the mixing tank (2) are fixedly connected with feeding valves (3). The front side of the discharging port of the mixing tank (2) is fixedly connected with a discharging valve (4). The front side of the discharging valve (4) is fixedly connected with a discharging pipe (5). The top of the mixing tank (2) is fixedly connected with a driving motor (6). The lower main shaft of the driving motor (6) is fixedly connected with a stirring frame (7). The upper side of the base (1) is fixedly connected with a plurality of brackets (8). The upper sides of the brackets (8) are fixedly connected with a group of support shafts (9). The upper sides of each group of support shafts (9) are fixedly connected with a group of pressure sensors (10). The upper sides of each group of pressure sensors (10) are fixedly connected with the lower part of a storage tank (11). The upper parts of the storage tanks (11) are screwed to the upper parts of the storage tanks (12). The upper sides of the feeding ports of the upper parts of the storage tanks (12) are fixedly connected with feeding valves (13). The lower sides of the discharging ports of the lower parts of the storage tanks (11) are fixedly connected with discharging valves (14). The lower sides of the discharging valves (14) are fixedly connected with flexible connecting pipes (15). The lower sides of the flexible connecting pipes (15) are fixedly connected with the feeding valves (3). The inner sides of the lower parts of the storage tanks (11) are fixedly connected with a group of mounting shafts (16). The opposite inner sides of each group of mounting shafts (16) are fixedly connected with a first limiting ring (17). The inner sides of the upper parts of the storage tanks (12) are fixedly connected with a second limiting ring (18). A support frame (19) is arranged between the first limiting ring (17) and the second limiting ring (18). The inner side of the support frame (19) is fixedly connected with a filter screen (20).

2. The lithium battery core batching device according to claim 1, characterized in that: The top of the mixing tank (2) is provided with a plurality of uniformly distributed feeding ports. The front side of the mixing tank (2) is provided with a discharging port. The stirring frame (7) is composed of a rotating shaft and stirring rods. A plurality of horizontally distributed stirring rods are fixedly connected to the outer side of the rotating shaft of the stirring frame (7).

3. The lithium battery core batching device according to claim 1, wherein: The tops of the brackets (8) are on the same horizontal plane as the top of the mixing tank (2). There are multiple groups of support shafts (9) and pressure sensors (10). Each group of support shafts (9) and pressure sensors (10) has three. The lower side of the lower part of the storage tank (11) is provided with a discharging port. The upper side of the upper part of the storage tank (12) is provided with a feeding port.

4. A lithium battery core batching device according to claim 1, characterized in that: The discharging valves (14) are all directly above the feeding valves (3). There are multiple groups of mounting shafts (16). Each group of mounting shafts (16) has four. The mounting shafts (16) are all horizontally distributed cylindrical shafts. The first limiting ring (17) and the second limiting ring (18) are symmetrically distributed up and down.

5. The lithium battery core batching equipment according to claim 1, characterized in that: The inner sides of the first limiting ring (17) and the second limiting ring (18) are each provided with four limiting grooves. The outer sides of the support frames (19) are each provided with four limiting protrusions. The support frames (19) are all vertically symmetric cylindrical frames. The filter screens (20) are all cylindrical mesh sleeves with an open top.

Images