Solvent feeding equipment for lithium battery production

Abstract

The utility model discloses lithium battery production solvent feeding equipment which comprises a back plate, a transverse guide plate is fixedly installed on the outer wall of the front face of the back plate, a first-stage ball screw is rotatably installed in the transverse guide plate through a bearing, and transverse guide rails are fixedly installed on the upper side and the lower side of the first-stage ball screw and located on the outer surface of the transverse guide plate. The first-stage ball screw is in threaded connection with a transverse sliding plate, a longitudinal guide plate is fixedly installed in the middle of the outer surface of the transverse sliding plate through a fixing bolt, a second-stage ball screw is rotationally installed in the longitudinal guide plate through a bearing, and longitudinal sliding plates are fixedly installed on the two sides of the second-stage ball screw and located on the outer surface of the longitudinal guide plate; the lithium battery electrolyte solvent injection device has double adjustment effects of left and right area conversion and up and down lifting adjustment, and can dynamically adjust the position according to different processing environments and use requirements, so that the lithium battery electrolyte solvent injection device can be suitable for electrolyte solvent injection work of lithium batteries with different heights, and the applicable height has dynamic and flexible adjustability.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production technology, specifically to a solvent feeding device for lithium battery production. Background Technology

[0002] Lithium-ion batteries are batteries that use lithium metal or lithium alloys as electrode materials and are paired with a non-aqueous electrolyte solution. The core of their electrochemical system is an electrochemical unit containing lithium elements (including metallic lithium, lithium ions, or lithium polymers).

[0003] The electrolyte in a lithium battery is the carrier of ion transport in the battery. It is generally composed of lithium salt and organic solvent. The electrolyte plays the role of conducting ions between the positive and negative electrodes of the lithium battery, which is the guarantee for the high voltage and high specific energy of the lithium-ion battery. The electrolyte is generally prepared by mixing high-purity organic solvent, electrolyte lithium salt, necessary additives and other raw materials under certain conditions and in a certain proportion.

[0004] Currently, in the production process of lithium batteries, electrolyte solvent needs to be fed. Most existing electrolyte solvent injection equipment is a cylindrical structure with a fixed height. It is inconvenient to dynamically adjust the injection height according to the different heights of lithium batteries, which results in certain inconveniences and insufficient structural flexibility. Therefore, this utility model proposes a lithium battery production solvent feeding device that can dynamically adjust the feeding area and feeding height. Utility Model Content

[0005] The purpose of this invention is to provide a solvent feeding device for lithium battery production, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a solvent feeding device for lithium battery production, comprising a back plate, a transverse guide plate fixedly installed on the outer wall of the front side of the back plate, a primary ball screw rotatably installed inside the transverse guide plate via bearings, transverse guide rails fixedly installed on the upper and lower sides of the primary ball screw and on the outer surface of the transverse guide plate, a transverse sliding plate threadedly connected to the primary ball screw, a longitudinal guide plate fixedly installed at the middle position of the outer surface of the transverse sliding plate via fixing bolts, the longitudinal guide plate and the transverse guide plate being perpendicular to each other, a secondary ball screw rotatably installed inside the longitudinal guide plate via bearings, longitudinal sliding plates fixedly installed on both sides of the secondary ball screw and on the outer surface of the longitudinal guide plate, the longitudinal sliding plates being threadedly connected to the secondary ball screw, a clamping ring fixedly installed on the outer surface of the longitudinal sliding plate, and a feed cylinder fixedly installed inside the clamping ring.

[0007] Preferably, the back of the transverse slide plate is slidably connected to the transverse guide rail, and the back of the longitudinal slide plate is slidably connected to the longitudinal guide rail.

[0008] Preferably, a primary motor is fixedly installed on one side of the outer wall of the transverse guide plate by bolts, and the output shaft of the primary motor is fixedly connected to a primary ball screw.

[0009] Preferably, a secondary motor is fixedly installed on the top outer wall of the longitudinal guide plate, and the output shaft of the secondary motor is fixedly connected to a secondary ball screw.

[0010] Preferably, a cylinder seat is fixedly installed on the upper surface of the top end of the feed cylinder, and a drive cylinder is fixedly installed on the upper surface of the cylinder seat.

[0011] Preferably, the output end of the drive cylinder is movably connected to an output rod, and the bottom end of the output rod is inserted into the inside of the feed cylinder and fixedly connected to a piston.

[0012] Preferably, the piston is made of rubber material and is slidably and sealingly connected to the inner wall of the feed cylinder.

[0013] Preferably, a feeding head is provided on the lower surface of the bottom end of the feeding cylinder, and the feeding head and the feeding cylinder are integrally formed.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The electrolyte solvent feeding device of this utility model can drive the feeding cylinder to move up and down and left and right through two mutually perpendicular thread drive structures. In actual use, it has a dual adjustment effect of left and right area switching and up and down lifting adjustment. It can be dynamically adjusted according to different processing environments and usage requirements, so it can be used for electrolyte solvent injection of lithium batteries of different heights. The applicable height has dynamic and flexible adjustment, effectively reducing usage limitations and making the structure more flexible in use.

[0016] Simultaneously, the left-right zone switching allows the feed cylinder to move left and right between the feeding zone and the suction zone, thus achieving a better zone switching effect. It can complete the automated zone switching and suction work, and has an automatic suction feeding effect. In actual use, no manual feeding is required, which greatly reduces the degree of automation during use, improves the automation effect of the machine, reduces the intensity of manual labor, and makes the structure more convenient to use. Attached Figure Description

[0017] Figure 1 This is a front perspective view of the feeding device according to an embodiment of the present utility model;

[0018] Figure 2 This is a bottom view of the feeding device according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the external three-dimensional structure of the feed cylinder according to an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the feed cylinder according to an embodiment of the present invention.

[0021] In the diagram: 1. Back plate; 2. Transverse guide plate; 3. Primary ball screw; 4. Transverse guide rail; 5. Transverse slide plate; 6. Longitudinal guide plate; 7. Secondary ball screw; 8. Longitudinal guide rail; 9. Longitudinal slide plate; 10. Primary motor; 11. Secondary motor; 12. Clamping ring; 13. Feed cylinder; 14. Cylinder seat; 15. Drive cylinder; 16. Output rod; 17. Piston; 18. Feed head. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0025] Please see Figure 1-4An embodiment of this utility model is provided: a lithium battery production solvent feeding device, including a back plate 1, a transverse guide plate 2 fixedly installed on the front outer wall of the back plate 1, a primary ball screw 3 rotatably installed in the transverse guide plate 2 through a bearing, transverse guide rails 4 fixedly installed on the upper and lower sides of the primary ball screw 3 and on the outer surface of the transverse guide plate 2, and a transverse sliding plate 5 threadedly connected to the primary ball screw 3.

[0026] The back of the horizontal sliding plate 5 is connected to the horizontal guide rail 4 in a limited sliding manner;

[0027] With this structural design, when the primary ball screw 3 is rotating, the transverse sliding plate 5 connected to it by threads can move linearly left and right along the primary ball screw 3 (the left and right movement of the transverse sliding plate 5 depends on the forward and reverse rotation of the primary ball screw 3). Thus, the left and right movement of the transverse sliding plate 5 can provide the necessary transmission adjustment for the free movement of the feeding structure of this utility model in the X-axis direction.

[0028] Furthermore, a longitudinal guide plate 6 is fixedly installed at the middle position of the outer surface of the transverse slide plate 5 by fixing bolts. The longitudinal guide plate 6 and the transverse guide plate 2 are set perpendicular to each other, so as to achieve the effect of dual-axis movement stroke of X and Y axes.

[0029] A secondary ball screw 7 is rotatably mounted inside the longitudinal guide plate 6 via bearings. A longitudinal slide plate 9 is fixedly mounted on both sides of the secondary ball screw 7 and on the outer surface of the longitudinal guide plate 6. The longitudinal slide plate 9 is threadedly connected to the secondary ball screw 7, and the back of the longitudinal slide plate 9 is limited and slidably connected to the longitudinal guide rail 8.

[0030] Similar to the X-axis structure principle described above, when the secondary ball screw 7 rotates, the longitudinal slide plate 9 connected to its thread can move linearly up and down along the secondary ball screw 7, thereby achieving the free movement of the feeding structure in the Y-axis and providing the necessary transmission conditions for subsequent feeding height adjustment.

[0031] A clamping ring 12 is fixedly installed on the outer surface of the longitudinal slide plate 9, and a feed cylinder 13 is fixedly installed inside the clamping ring 12.

[0032] In this embodiment, in order to drive the primary ball screw 3 and the secondary ball screw 7 to perform automated forward and reverse rotation, a primary motor 10 is fixedly installed on one side of the outer wall of the transverse guide plate 2 by bolts, and the output shaft of the primary motor 10 is fixedly connected to the primary ball screw 3.

[0033] Furthermore, a secondary motor 11 is fixedly installed on the top outer wall of the longitudinal guide plate 6, and the output shaft of the secondary motor 11 is fixedly connected to the secondary ball screw 7.

[0034] Thus, the primary motor 10 and the secondary motor 11 can drive the primary ball screw 3 and the secondary ball screw 7 to perform automated rotation, thereby driving the feed cylinder 13 to move up and down and left and right through the threaded transmission.

[0035] In order to facilitate rotation control of the primary motor 10 and the secondary motor 11, both the primary motor 10 and the secondary motor 11 are servo motors.

[0036] In this embodiment, in order to ensure the normal feeding operation of the solvent feeding device of this utility model, a cylinder seat 14 is fixedly installed on the upper surface of the top of the feeding cylinder 13, a drive cylinder 15 is fixedly installed on the upper surface of the cylinder seat 14, an output rod 16 is movably connected to the output end of the drive cylinder 15, and a piston 17 is fixedly connected to the bottom end of the output rod 16 inserted into the inside of the feeding cylinder 13.

[0037] Furthermore, the piston 17 is made of rubber material and is slidably sealed to the inner wall of the feed cylinder 13. The feed head 18 is provided on the lower surface of the bottom end of the feed cylinder 13. The feed head 18 and the feed cylinder 13 are integrally molded.

[0038] Based on the above structure, when the piston 17 is located below and inside the feed cylinder 13, the output rod 16 can be extended by the drive cylinder 15. When the output rod 16 extends, it will abut against the piston 17 at the bottom, causing the piston 17 to move from top to bottom.

[0039] The downward-moving piston 17 can squeeze out the electrolyte solvent below it, thereby allowing the electrolyte solvent to be discharged from the feed head 18, thus completing the solvent feeding of lithium battery electrolyte.

[0040] When the piston 17 moves upward under the action of the drive cylinder 15, if the feed head 18 is placed in the electrolyte solvent storage container at this time, the electrolyte solvent in the storage container will be sucked into the feed cylinder 13, thus achieving an automatic suction feeding effect. It can complete the automatic suction feeding work. In actual use, no manual feeding is required, greatly reducing the automation effect during use and reducing the intensity of manual labor, making it more convenient to use. This feeding structure is similar to a syringe structure. The negative pressure of the electrolyte solvent is used to suck in and discharge through the up and down movement of the piston 17. It is convenient to use, has a simple structure and principle, and is more practical.

[0041] Working principle: When in use, the lithium battery working plate that needs to be filled with electrolyte can be placed on one side of the device, while an open-type storage container for electrolyte solvent can be placed on the other side of the device.

[0042] In actual operation, the feed cylinder 18 of the feed cylinder 13 is placed at the specified feed height. At this time, the output rod 16 can be driven to extend a certain distance by the set drive cylinder 15. When the output rod 16 extends, it will push against the piston 17 at the bottom to move, so that the piston 17 moves from top to bottom.

[0043] After the piston 17 moves down a certain distance, it can squeeze out the electrolyte solvent below it, thereby allowing the electrolyte solvent to be discharged from the feed head 18. The discharged electrolyte solvent can be injected into the lithium battery, thus completing the solvent feeding of the lithium battery electrolyte and ensuring normal use.

[0044] When the output rod 16 extends to its maximum length, the piston 17 moves down to the bottom of the feed cylinder 13. At this time, the electrolyte solvent stored in the feed cylinder 13 is insufficient.

[0045] Then, the secondary motor 11 can work. When the secondary motor 11 works, it drives the secondary ball screw 7 to reverse. When the secondary ball screw 7 reverses, the longitudinal slide plate 9 connected to it can move upward. In this way, the movement of the longitudinal slide plate 9 can drive the feed cylinder 13 to be lifted upward.

[0046] When the feed cylinder 13 is raised to the preset height, the first-stage motor 10 can drive the first-stage ball screw 3 to reverse. When the first-stage ball screw 3 reverses, the transverse slide plate 5 connected to it can move from one end to the other end. The movement of the transverse slide plate 5 can drive the Y-axis structure assembly and the feed cylinder 13 to perform the area switching operation. At this time, the feed head 18 of the feed cylinder 13 is placed directly above the container of electrolyte solvent.

[0047] Then, the secondary motor 11 drives the secondary ball screw 7 to rotate forward, and the longitudinal slide plate 9 drives the feed cylinder 13 to move down one end distance. At this time, the feed head 18 is placed in the container of electrolyte solvent. The output rod 16 can be driven to retract by the set drive cylinder 15. When the output rod 16 retracts, the drive piston 17 moves up.

[0048] As the piston 17 moves upward, the feed head 18 can draw the electrolyte solvent from the storage container into the feed cylinder 13, thereby completing the automated feeding of the electrolyte solvent. This provides an automated feeding effect, eliminating the need for manual feeding in actual use, greatly reducing the automation effect and labor intensity, and making it more convenient to use. This feeding structure is similar to a syringe structure, using the up and down movement of the piston 17 to draw in and discharge the electrolyte solvent under negative pressure. It is easy to use, has a simple structure and principle, and is more practical.

[0049] After the electrolyte solvent is sucked in, the secondary motor 11 reverses to drive the feed cylinder 13 and the feed head 18 to move upward, so that the feed head 18 is separated from the solvent storage container. Then, the primary motor 10 can drive the primary ball screw 3 to rotate forward. When the primary ball screw 3 rotates forward, the feed cylinder 13 is driven to move from the suction end to the feed end through the transverse slide plate 5.

[0050] Then, under the action of the secondary motor 11, the feed cylinder 13 descends again to the feeding height, and the automated circulating lithium battery production solvent feeding work can be carried out in the above manner.

[0051] In summary, the electrolyte solvent feeding device of this utility model can drive the feeding cylinder 13 to perform vertical and horizontal displacement and lifting operations through two mutually perpendicular threaded drive structures. In actual use, it has a dual adjustment effect of left-right area switching and vertical lifting adjustment. It can be dynamically adjusted according to different processing environments and usage requirements, thus making it suitable for injecting electrolyte solvent into lithium batteries of different heights. The applicable height has dynamic and flexible adjustment, effectively reducing usage limitations and making the structure more flexible in use.

[0052] Simultaneously, the left-right area switching allows the feed cylinder 13 to move left and right between the feeding area and the suction area, thus achieving a better area switching effect. It can complete the automated area switching and suction work, and has an automatic suction feeding effect. In actual use, no manual feeding is required, which greatly reduces the degree of automation during use, improves the automation effect of the machine, reduces the intensity of manual labor, and makes the structure more convenient to use.

[0053] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lithium battery production solvent feeding apparatus comprising a back plate (1), characterized in that, A transverse guide plate (2) is fixedly installed on the front outer wall of the back plate (1). A primary ball screw (3) is rotatably installed inside the transverse guide plate (2) via bearings. A transverse guide rail (4) is fixedly installed on the upper and lower sides of the primary ball screw (3) and on the outer surface of the transverse guide plate (2). A transverse slide plate (5) is threadedly connected to the primary ball screw (3). A longitudinal guide plate (6) is fixedly installed in the middle position of the outer surface of the transverse slide plate (5) via fixing bolts. The longitudinal guide plate (6) and the transverse guide plate (2) are perpendicular to each other. A secondary ball screw (7) is rotatably installed inside the longitudinal guide plate (6) via bearings. A longitudinal slide plate (9) is fixedly installed on both sides of the secondary ball screw (7) and on the outer surface of the longitudinal guide plate (6). The longitudinal slide plate (9) is threadedly connected to the secondary ball screw (7). A clamping ring (12) is fixedly installed on the outer surface of the longitudinal slide plate (9). A feed cylinder (13) is fixedly installed inside the clamping ring (12).

2. The lithium battery production solvent feeding apparatus according to claim 1, characterized by: The back of the horizontal sliding plate (5) is slidably connected to the horizontal guide rail (4), and the back of the vertical sliding plate (9) is slidably connected to the vertical guide rail (8).

3. The apparatus for feeding a solvent for producing a lithium battery according to claim 1, wherein: A primary motor (10) is fixedly installed on one side of the outer wall of the transverse guide plate (2) by bolts, and the output shaft of the primary motor (10) is fixedly connected to the primary ball screw (3).

4. The lithium battery production solvent feeding apparatus according to claim 1, characterized by: A secondary motor (11) is fixedly installed on the top outer wall of the longitudinal guide plate (6), and the output shaft of the secondary motor (11) is fixedly connected to the secondary ball screw (7).

5. The apparatus for feeding a solvent for producing a lithium battery according to claim 1, wherein: A cylinder seat (14) is fixedly installed on the upper surface of the top of the feed cylinder (13), and a drive cylinder (15) is fixedly installed on the upper surface of the cylinder seat (14).

6. The lithium battery production solvent feeding equipment according to claim 5, characterized in that: The output end of the drive cylinder (15) is movably connected to an output rod (16), and the bottom end of the output rod (16) is inserted into the inside of the feed cylinder (13) and fixedly connected to a piston (17).

7. A lithium battery production solvent feeding apparatus according to claim 6, characterized in that: The piston (17) is made of rubber material and is slidably sealed to the inner wall of the feed cylinder (13).

8. The lithium battery production solvent feeding apparatus according to claim 1, characterized by: The feed head (18) is provided on the lower surface of the bottom end of the feed cylinder (13), and the feed head (18) and the feed cylinder (13) are integrally formed.

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