Liquid injection device for lithium battery production

Abstract

The utility model discloses a liquid injection device for lithium battery production, and relates to the technical field of liquid injection devices. The liquid injection device for lithium battery production comprises a machining table, a vertical frame arranged on the top of the machining table, a mounting frame arranged on the lower portion of the vertical frame, a liquid injection pump head arranged on the bottom face of the mounting frame and an electrolyte containing barrel arranged on the top of the vertical frame and connected with the liquid injection pump head. According to the device, through the arrangement of the bottom plate, the movable ring, the gear ring, the gear and the driving motor, the multiple sets of positioning plates located on the vertical row and the transverse row can clamp and fix multiple sets of lithium battery shells at the same time, and arc-shaped blocks, linkage rods and reset springs are combined; and the positioning plate can clamp, fix and unfix different types of lithium battery shells, so that the whole operation process is relatively rapid, simple and convenient, and the whole operation efficiency of liquid injection is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid injection device technical field, concretely is a kind of liquid injection device for lithium battery production. BACKGROUND

[0002] Electrolyte as the carrier of lithium ion, in the process of battery charging and discharging, lithium ion moves back and forth between positive and negative, realizes the charging and discharging function of battery, injection process will inject the appropriate amount of electrolyte into battery interior, so that lithium ion can be embedded and extracted in the lattice of positive and negative material, to form current, provide power supply for external circuit, the existing, will use the liquid injection equipment that is composed of processing table, liquid injection pump, liquid injection needle and electrolyte containing barrel etc. Liquid injection is carried out in lithium battery shell.

[0003] Before simultaneously injecting liquid into multiple groups of cylindrical lithium battery shells, one-to-one operation is required, so that multiple lithium battery shells are fixed one by one on the processing table, for example, using a clamping piece to fix the lithium battery shells in the same vertical row or the same horizontal row on the processing table. The clamping pieces in the horizontal row or the vertical row cannot be controlled simultaneously, resulting in a long overall fixing process, which further makes it impossible to release the multiple cylindrical lithium battery shells at once in the later stage, affecting the liquid injection efficiency. To address the deficiencies of the prior art, we propose a liquid injection device for lithium battery production to solve the above problems. SUMMARY

[0004] To address the deficiencies of the prior art, the utility model provides a kind of liquid injection device for lithium battery production, solve the problem that using clamping piece will be fixed in the same vertical row or the same horizontal row lithium battery shell on processing table, the clamping piece in the horizontal row or the vertical row cannot be controlled simultaneously, resulting in a long overall fixing process, which further makes it impossible to release the multiple cylindrical lithium battery shells at once in the later stage, affecting the liquid injection efficiency.

[0005] To achieve the above purpose, the utility model is realized by the following technical scheme: a kind of liquid injection device for lithium battery production, including processing table, the stand of being set in the top of processing table, the mounting bracket of being set in the lower part of stand, the liquid injection pump head of being set in the bottom surface of mounting bracket and the electrolyte containing barrel of being set in the top of stand and the liquid injection pump head connection, the top of processing table is provided with positioning mechanism, the positioning mechanism includes:

[0006] bottom plate, it is fixedly arranged on the top of processing table, and the top of bottom plate is slidably provided with multiple positioning plates for clamping and fixing lithium battery shell;

[0007] movable ring and gear ring, between fixed connection, and movable ring and gear ring rotationally arranged on the top of bottom plate;

[0008] The arc-shaped block and the linkage rod are connected with the movable ring and the positioning plate respectively, and the clamping position of the positioning plate is adjusted through the connection between the arc-shaped block and the linkage rod.

[0009] The gear is rotatably arranged on the top surface of the machining table, and the gear is engaged with the outer walls of the plurality of gear rings.

[0010] Preferably, a limiting groove is formed in the top surface of the bottom plate, one end of the positioning plate is limited to slide in the limiting groove, and a reset assembly is arranged in the limiting groove.

[0011] Preferably, the reset assembly comprises a limiting rod fixedly arranged in the limiting groove, a limiting plate slidably arranged on the outer wall of the limiting rod, and a reset spring arranged between one side of the limiting plate and the inner wall of the limiting groove, and the top surface of the limiting plate is fixedly connected with the bottom surface of the positioning plate.

[0012] Preferably, the outer wall of the movable ring is provided with an adjusting assembly for adjusting the arrangement position of the arc-shaped block.

[0013] Preferably, the adjusting assembly comprises a connecting shell fixedly arranged on the outer wall of the movable ring, a connecting seat fixedly arranged on one end of the outer wall of the arc-shaped block and the inner wall of the connecting shell, and an electric telescopic rod hingedly arranged between the two connecting seats.

[0014] Preferably, a connecting groove in communication with the inside of the connecting shell is formed in the outer wall of the movable ring, and one end of the arc-shaped block away from the connecting seat is rotatably arranged in the connecting groove.

[0015] Preferably, the end of the linkage rod close to the arc-shaped block is an arc-shaped end.

[0016] The liquid injection device for lithium battery production has the following beneficial effects: the liquid injection device for lithium battery production can simultaneously clamp and fix a plurality of lithium battery shells on the vertical row and the horizontal row through the bottom plate, the movable ring, the gear ring, the gear and the driving motor, and the positioning plate can clamp and fix and release the lithium battery shells of different models in combination with the arc-shaped block, the linkage rod and the reset spring, so that the overall operation process is relatively fast and simple, and the overall operation efficiency of liquid injection is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 It is the whole structure schematic view of the utility model;

[0019] Figure 2 It is the processing platform and the positioning mechanism connecting structure schematic view of the utility model;

[0020] Figure 3 It is the bottom plate and the driving motor structure schematic view of the utility model;

[0021] Figure 4 It is the gear ring, gear and driving motor connecting structure schematic view of the utility model;

[0022] Figure 5 It is the bottom plate and the movable ring internal structure section view of the utility model;

[0023] Figure 6 It is the limiting groove and the connecting groove structure schematic view of the utility model;

[0024] Figure 7 It is the positioning plate, linkage rod and arc block connecting structure schematic view of the utility model.

[0025] In the drawing: 1, processing platform;2, stand;3, mounting frame;31, liquid injection pump head;32, electrolyte containing barrel;4, positioning mechanism;41, bottom plate;42, limiting groove;43, positioning plate;44, movable ring;45, gear ring;46, arc block;47, linkage rod;48, gear;49, driving motor;5, reset assembly;51, limiting rod;52, limiting plate;53, reset spring;6, adjusting assembly;61, connecting shell;62, connecting groove;63, connecting seat;64, electric telescopic rod. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantage of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model is described clearly and completely, obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0027] The liquid injection device for lithium battery production provided by the embodiments of the application solves the problem that the lithium battery shells in the same vertical row or the same horizontal row are fixed on the processing platform by using clamping pieces, the clamping pieces in the horizontal row or the vertical row cannot be controlled at the same time, the overall fixing process is long, and thus the multiple cylindrical lithium battery shells cannot be fixed or unfixed at one time in the later stage, which affects the liquid injection efficiency.

[0028] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the drawings and specific embodiments of the specification.

[0029] The utility model discloses a kind of liquid injection devices for lithium battery production.

[0030] According to the drawings Figures 1-7 As shown in the drawings, including processing table 1, vertical stand 2 being arranged at the top of processing table 1, mounting bracket 3 being arranged at the lower part of vertical stand 2, liquid injection pump head 31 being arranged at the bottom surface of mounting bracket 3 and electrolyte containing barrel 32 being arranged at the top of vertical stand 2 and being connected with liquid injection pump head 31, when injecting electrolyte into lithium battery shell, first, lithium battery shell is placed on processing table 1, and lithium battery shell is fixed by tool, then, liquid injection pump head 31 is opened, so that liquid injection pump head 31 delivers electrolyte in electrolyte containing barrel 32 into lithium battery shell according to quantity.

[0031] Referring to the drawings Figures 2-5 The top surface of processing table 1 is provided with positioning mechanism 4, a plurality of lithium battery shells can be fixed on processing table 1 at the same time by positioning mechanism 4, and different models of lithium battery shells can be fixed on processing table 1 according to requirements, and positioning mechanism 4 comprises bottom plate 41, a plurality of bottom plates 41 are fixedly arranged on the top surface of processing table 1, a plurality of positioning plates 43 for clamping and fixing the outer wall of lithium battery shell are slidably arranged on the top surface of bottom plate 41, referring to the drawings Figures 5-6 The top surface of bottom plate 41 is provided with limiting groove 42, one end of positioning plate 43 is limitedly slid in the inside of limiting groove 42, gear ring 45 is fixedly arranged on the top surface of movable ring 44, and movable ring 44 is rotatably arranged on the top surface of bottom plate 41, referring to the drawings Figures 2-4 Gear 48 is rotatably arranged on the top surface of processing table 1, gear 48 is engaged with the outer wall of a plurality of gear rings 45, the outer wall of a plurality of gear rings 45 is not in contact, a plurality of gear rings 45 are linked through gear 48, driving motor 49 for driving gear 48 to rotate is arranged in the inside of processing table 1, a plurality of arc-shaped blocks 46 are connected with the inner wall of movable ring 44, a plurality of linkage rods 47 are fixedly connected with one side of positioning plate 43, one end of linkage rod 47 close to arc-shaped block 46 is arc-shaped end, the clamping position of positioning plate 43 is adjusted and controlled through the connection between arc-shaped block 46 and linkage rod 47, when a plurality of lithium battery shells are placed on the top surface of a group of bottom plates 41, driving motor 49 is opened at this time, so that driving motor 49 drives a group of gears 48 to rotate, a plurality of movable rings 44 arranged on the top surface of a plurality of bottom plates 41 are simultaneously rotated under the engagement between a plurality of gears 48 and a plurality of gear rings 45, for example, as shown in the drawings Figure 5As shown in the drawings, when the wide end of the arc-shaped block 46 on the inner wall of the movable ring 44 is in contact with the arc-shaped end of the linkage rod 47, the linkage rod 47 is moved away from the arc-shaped block 46 under the pushing of the arc-shaped block 46, and then the positioning plate 43 at one end of the linkage rod 47 is moved by an equal distance, so that the clamping range between the multiple sets of positioning plates 43 is reduced, thereby stably clamping the lithium battery shell with a smaller diameter.

[0032] Referring to the drawings Figures 5-7 The inside of the limiting groove 42 is provided with a reset assembly 5, which comprises a limiting rod 51 fixedly arranged in the inside of the limiting groove 42, a limiting plate 52 slidably arranged on the outer wall of the limiting rod 51, and a reset spring 53 arranged between one side of the limiting plate 52 and the inner wall of the limiting groove 42. The reset spring 53 is sleeved on the outer wall of the limiting rod 51, and the top surface of the limiting plate 52 is fixedly connected with the bottom surface of the positioning plate 43. After the lithium battery shell is filled with electrolyte, the reset assembly 5 is arranged, that is, as shown in the drawings Figure 5 As shown in the drawings, when the wide end of the arc-shaped block 46 on the inner wall of the movable ring 44 is in contact with the arc-shaped end of the linkage rod 47, the linkage rod 47 is moved away from the arc-shaped block 46 under the pushing of the arc-shaped block 46, and then the positioning plate 43 at one end of the linkage rod 47 is moved by an equal distance, so that the clamping range between the multiple sets of positioning plates 43 is reduced, thereby stably clamping the lithium battery shell with a smaller diameter.

[0033] Referring to the drawings Figure 5 and the drawings Figure 7 The outer wall of the movable ring 44 is provided with an adjusting assembly 6, which is used for adjusting the setting position of the arc-shaped block 46, that is, adjusting the position of the wide end of the arc-shaped block 46, so as to assist in adjusting the clamping range of the positioning plate 43. The adjusting assembly 6 comprises a connecting shell 61 fixedly arranged on the outer wall of the movable ring 44, a connecting seat 63 fixedly arranged on the outer wall of one end of the arc-shaped block 46 and the inner wall of the connecting shell 61, and an electric telescopic rod 64 hingedly arranged between the two connecting seats 63. The outer wall of the movable ring 44 is provided with a connecting groove 62 in communication with the inside of the connecting shell 61, and one end of the arc-shaped block 46 away from the connecting seat 63 is rotatably arranged in the inside of the connecting groove 62.

[0034] The basic principle and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A liquid injection device for lithium battery production, comprising a processing table (1), a stand (2) arranged on the top of the processing table (1), a mounting frame (3) arranged at the lower part of the stand (2), a liquid injection pump head (31) arranged on the bottom surface of the mounting frame (3), and an electrolyte containing barrel (32) arranged on the top of the stand (2) and connected with the liquid injection pump head (31), characterized in that, The top surface of the processing table (1) is provided with a positioning mechanism (4), the positioning mechanism (4) comprises: A bottom plate (41) is fixedly arranged on the top surface of the processing table (1), and the top surface of the bottom plate (41) is slidably provided with a plurality of sets of positioning plates (43) for clamping and fixing the lithium battery shell; An active ring (44) and a gear ring (45) are fixedly connected between them, and the active ring (44) and the gear ring (45) are rotatably arranged on the top surface of the bottom plate (41); An arc block (46) and a linkage rod (47) are connected with the active ring (44) and the positioning plate (43) respectively, and the clamping position of the positioning plate (43) is adjusted through the connection between the arc block (46) and the linkage rod (47); A gear (48) is rotatably arranged on the top surface of the processing table (1), and the gear (48) is engaged with the outer wall of the plurality of gear rings (45), and the inside of the processing table (1) is provided with a driving motor (49) for driving the gear (48) to rotate.

2. The liquid injection device for lithium battery production according to claim 1, characterized in that: The top surface of the bottom plate (41) is provided with a limiting groove (42), one end of the positioning plate (43) is limitedly slid in the inside of the limiting groove (42), and the inside of the limiting groove (42) is provided with a reset assembly (5).

3. The liquid injection device for lithium battery production according to claim 2, characterized in that: The reset assembly (5) comprises a limiting rod (51) fixedly arranged in the limiting groove (42), a limiting plate (52) slidably arranged on the outer wall of the limiting rod (51), and a reset spring (53) arranged between one side of the limiting plate (52) and the inner wall of the limiting groove (42), and the top surface of the limiting plate (52) is fixedly connected with the bottom surface of the positioning plate (43).

4. The liquid injection device for lithium battery production of claim 1, wherein: The outer wall of the active ring (44) is provided with an adjusting assembly (6), and the adjusting assembly (6) is used for adjusting the setting position of the arc block (46).

5. The liquid injection device for lithium battery production according to claim 4, characterized in that: The adjusting assembly (6) comprises a connecting shell (61) fixedly arranged on the outer wall of the active ring (44), a connecting seat (63) fixedly arranged on one end of the outer wall of the arc block (46) and the inner wall of the connecting shell (61), and an electric telescopic rod (64) hingedly arranged between the two connecting seats (63).

6. The liquid injection device for lithium battery production of claim 5, wherein: The outer wall of the active ring (44) is provided with a connecting groove (62) in communication with the inside of the connecting shell (61), and one end of the arc block (46) away from the connecting seat (63) is rotatably arranged in the inside of the connecting groove (62).

7. The liquid injection device for lithium battery production of claim 1, wherein: One end of the linkage rod (47) close to the arc block (46) is arc-shaped.

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