A square aluminum shell lithium battery turntable secondary liquid injection machine and liquid injection method thereof

Abstract

The present invention relates to the technical field of liquid injection machines, and specifically to a square aluminum shell lithium battery turntable type secondary liquid injection machine, comprising a liquid injection machine frame, on which a program controller and a motor are fixedly installed, a load-bearing shaft is installed on the motor, a load-bearing turntable is fixedly arranged on the load-bearing shaft, a movable connecting hole is opened on the circumference of the load-bearing turntable, and a matching protrusion is fixedly arranged on the circumference of the load-bearing turntable, a supporting socket is opened on the matching protrusion, and the supporting socket passes through the load-bearing turntable, a load-bearing plate frame is fixedly arranged at one end of the liquid injection machine frame, and a matching channel is opened at the upper end of the load-bearing plate frame. The present invention also relates to a square aluminum shell lithium battery filling method, comprising the following steps: step one: placing the battery; step two: rotating the load-bearing turntable; step three: filling the liquid at the filling point; step four: taking and placing the battery.

Description

Technical Field

[0001] The invention relates to the technical field of liquid injection machines, in particular to a square aluminum shell lithium battery turntable type secondary liquid injection machine and a liquid injection method thereof. Background Art

[0002] Square aluminum shell lithium batteries need to be injected with liquid for the second time during the production process. The existing secondary injection equipment is not convenient to operate when in use. On the one hand, the existing secondary injection equipment cannot continuously inject liquid into the square aluminum shell lithium batteries when in use, which makes the injection efficiency low. On the other hand, when the square aluminum shell lithium batteries are injected with liquid, as the liquid is added, the liquid inside the battery increases and droplets may splash, causing the liquid to spill on the outside of the battery and cause pollution. Summary of the invention

[0003] The object of the present invention is to provide a square aluminum shell lithium battery turntable type secondary liquid filling machine and a liquid filling method thereof, so as to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The cam is provided with a plurality of supporting plates, and the supporting plates are provided with a plurality of supporting plates, the supporting plates are provided with a plurality of supporting plates, and the supporting plates are provided with a plurality of supporting plates.

[0006] Preferably, the continuous and convenient liquid injection mechanism includes a limiting positioning frame, a matching drive plate, a liquid injection box, a closing cover plate, a bearing movable plate, a wiping sponge block and a linkage matching frame. The limiting positioning frame is circumferentially installed on the bearing turntable, and movable connecting rods are symmetrically fixed on the limiting positioning frame. The movable connecting rods are inserted into the movable connecting holes, and a connecting bottom strip is fixedly provided at the lower end of the movable connecting rod. The connecting bottom strip is located below the bearing turntable, and a first connecting hinge is hinged on the connecting bottom strip, and the lower end of the first connecting hinge is hinged to the matching drive plate.

[0007] Preferably, a mating bottom strip is fixedly provided at the lower end of the mating driving plate, the mating bottom strip is hinged to the first connecting hinge rod, and a supporting mating rod is fixedly provided on the mating driving plate, the supporting mating rod is inserted in the supporting socket, and a first connecting spring is sleeved on the supporting mating rod, and a supporting top plate is fixedly provided at the upper end of the mating driving plate, an arc bearing plate is fixedly provided on the supporting top plate, inclined slats are symmetrically fixedly provided on the arc bearing plate, and a mating platform is fixedly provided between the inclined slats.

[0008] Preferably, a liquid injection box is fixedly installed on the mounting support ring, a liquid injection pipe is fixedly arranged at the lower end of the liquid injection box, a solenoid valve is installed on the liquid injection pipe, and a connecting pipe groove is opened on the liquid injection pipe, connecting plate frames are symmetrically fixedly arranged on both sides of the liquid injection pipe, and a connecting channel is opened on the connecting plate frame.

[0009] Preferably, a closed cover is installed at the lower end of the liquid filling box, a movable conveying pipe is fixedly provided at the upper end of the closed cover, the movable conveying pipe is connected to the closed cover, and a sealing pipe sleeve is fixedly provided at the upper end of the movable conveying pipe, the sealing pipe sleeve is inserted in the connecting pipe groove, load-bearing matching rods are symmetrically fixedly provided on both sides of the closed cover, and a connecting protrusion is also fixedly provided on the closed cover, and the connecting protrusion is hinged with a second connecting hinge rod.

[0010] Preferably, bearing movable plates are symmetrically installed on both sides of the closed cover plate, matching vertical plates are fixedly arranged on the bearing movable plates, installation channels are opened on the matching vertical plates, bearing matching holes are symmetrically opened on the matching vertical plates at both ends of the installation channels, bearing matching rods are inserted in the bearing matching holes, and upper convex connecting plates are fixedly arranged on the upper ends of the matching vertical plates, connecting pins are symmetrically fixedly arranged on the upper convex connecting plates, and the connecting pins are inserted in the connecting channels.

[0011] Preferably, a wiping sponge block is installed on the supporting movable plate, a mounting portion is fixedly provided on the wiping sponge block, the mounting portion is inserted into the mounting channel, and limited contact portions are symmetrically fixedly provided at both ends of the mounting portion, and the limited contact portions are in contact with the matching vertical plate.

[0012] Preferably, the upper end of the second connecting hinge rod is hinged with a linkage matching frame, and a lower convex connecting plate is fixedly provided on the lower side of one end of the linkage matching frame, and the lower convex connecting plate is inserted in the matching channel, and a mounting rod is fixedly provided on the linkage matching frame on the upper side of the lower convex connecting plate, and the mounting rod is inserted in the mounting plug hole, and a second connecting spring is sleeved on the mounting rod.

[0013] Preferably, a downward convex bearing plate is fixedly provided on the lower side of the other end of the linkage matching frame, and a second rotating wheel is installed on the lower end of the downward convex bearing plate, and the second rotating wheel contacts the outer end surface of the arc bearing plate.

[0014] A method for injecting liquid into a square aluminum shell lithium battery comprises the following steps:

[0015] Step 1: Place the battery: Place the battery in the restricted positioning frame;

[0016] Step 2: Rotation of the carrier turntable: The motor is controlled by the program controller to rotate, thereby driving the carrier turntable to rotate;

[0017] Step 3: Filling point filling: When the battery rotates to the bottom of the filling box, the program controller controls the solenoid valve to open to achieve filling;

[0018] Step 4: Battery placement: As the carrying turntable rotates, the battery that has been filled with liquid is rotated and moved away, and it is removed and replaced with a battery that has not been filled with liquid, and the battery is continuously filled with liquid.

[0019] Compared with the prior art, the invention has the following advantages:

[0020] 1. When injecting liquid into the battery, place the battery in the limiting positioning frame. As the carrying turntable rotates, the battery can be continuously injected. It is very convenient. The staff only needs to take and place the battery. When the battery moves to the injection point, it will drive the limiting positioning frame to move upward under the action of the driving plate. In this way, the limiting positioning frame can limit and position the battery from a higher position, which can not only ensure the stability of the battery during the injection process, but also after the injection, the limiting positioning frame moves from top to bottom. In the same way, it limits the battery from a high position, which can ensure the stability of the injected battery during the movement, and when the limiting positioning frame moves to the lowest point, it is also convenient to take and place the battery.

[0021] 2. As the battery moves toward the injection point, the movement of the cooperative driving plate will drive the linkage cooperation frame to move. As the linkage cooperation frame moves, the closed cover plate will move downward under the action of the second connecting hinge rod, so that the closed cover plate covers the injection port of the battery. In this way, liquid splashing can be well avoided during the injection process. When the battery is moved away from the injection point, the closed cover plate moves upward to avoid causing greater friction to the battery, which affects the quality of the battery and the movement of the battery.

[0022] 3. In addition, when the battery is removed from the injection point, as the closed cover moves upward, the two supporting movable plates will also be driven to move toward each other, thereby driving the wiping sponge block to move and wipe the lower end surface of the closed cover, thereby wiping off the liquid splashed on the lower end surface of the closed cover to prevent the liquid from accumulating on the closed cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A first-person perspective diagram of the injection rack assembly.

[0024] Figure 2 A second perspective diagram of the injection rack assembly.

[0025] Figure 3 for Figure 2 A magnified schematic diagram of center A.

[0026] Figure 4 It is a structural schematic diagram of the liquid injection rack.

[0027] Figure 5 It is a schematic diagram of the assembly of the limiting positioning frame and the matching driving plate.

[0028] Figure 6 Schematic diagram of the explosion of the liquid filling box and the closed cover assembly.

[0029] Figure 7 for Figure 6 A magnified schematic diagram of point B in the middle.

[0030] Figure 8 It is the assembly diagram of the liquid filling box and the linkage matching frame.

[0031] Fig. 9 It is a structural schematic diagram of a closed cover.

[0032] In the figure: 1, liquid injection frame; 11, program controller; 12, motor; 13, bearing shaft; 14, bearing turntable; 15, movable connection hole; 16, matching convex block; 17, support socket; 18, bearing plate frame; 181, matching channel; 182, mounting convex plate; 183, mounting socket hole; 184, mounting support ring; 185, matching push-up strip; 186, first rotating wheel; 2, limiting positioning frame; 21, movable connection rod; 22, connecting bottom strip; 23, first connecting hinge rod; 3, matching drive plate; 31, matching bottom strip; 32, supporting matching rod; 33, first connecting spring; 34, supporting top plate; 35, arc bearing plate; 36, inclined strip; 37 , matching platform; 4, liquid filling box; 41, liquid filling pipe; 42, solenoid valve; 43, connecting pipe groove; 44, connecting plate frame; 45, connecting channel; 5, closing cover plate; 51, movable conveying pipe; 52, sealing pipe sleeve; 53, load-bearing matching rod; 54, connecting convex frame; 55, second connecting hinge rod; 6, load-bearing movable plate; 61, matching vertical plate; 62, installation channel; 63, load-bearing matching hole; 64, upper convex connecting plate; 65, connecting plug column; 7, wiping sponge block; 71, installation part; 72, limit contact part; 8, linkage matching frame; 80, lower convex connecting plate; 81, installation plug rod; 82, second connecting spring; 83, lower convex bearing plate; 831, second rotating wheel. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 9 , the present invention provides a technical solution:

[0035] A square aluminum shell lithium battery turntable secondary liquid injection machine, comprising a liquid injection frame 1, a program controller 11 and a motor 12 are fixedly installed on the liquid injection frame 1, a bearing shaft 13 is installed on the motor 12, a bearing turntable 14 is fixedly arranged on the bearing shaft 13, a movable connection hole 15 is opened on the circumference of the bearing turntable 14, and a matching convex block 16 is fixedly arranged on the circumference of the bearing turntable 14, a supporting plug hole 17 is opened on the matching convex block 16, and the supporting plug hole 17 passes through the bearing turntable 14, and a bearing is fixedly arranged at one end of the liquid injection frame 1 The plate frame 18 has a matching channel 181 at its upper end, a mounting convex plate 182 is fixedly provided on the plate frame 18 at one end of the matching channel 181, a mounting plug hole 183 is provided on the mounting convex plate 182, and a mounting support ring 184 is fixedly provided on the plate frame 18 at the other end of the matching channel 181, a matching push-out strip 185 is fixedly provided on the lower end of the mounting support ring 184, a first rotating wheel 186 is installed on the matching push-out strip 185, and a continuous and convenient liquid injection mechanism is installed on the liquid injection frame 1.

[0036] The continuous and convenient liquid injection mechanism includes a limiting positioning frame 2, a matching drive plate 3, a liquid injection box 4, a closing cover plate 5, a bearing movable plate 6, a wiping sponge block 7 and a linkage matching frame 8. The limiting positioning frame 2 is circumferentially installed on the bearing turntable 14, and a movable connecting rod 21 is symmetrically fixedly arranged on the limiting positioning frame 2. The movable connecting rod 21 is inserted into the movable connecting hole 15, and a connecting bottom strip 22 is fixedly arranged at the lower end of the movable connecting rod 21. The connecting bottom strip 22 is located below the bearing turntable 14, and a first connecting hinge 23 is hinged on the connecting bottom strip 22. The lower end of the first connecting hinge 23 is hinged to the matching drive plate 3. In addition, the limiting positioning frame 2 plays a role of limiting positioning of the battery.

[0037] A mating bottom strip 31 is fixedly provided at the lower end of the mating driving plate 3, and the mating bottom strip 31 is hinged with the first connecting hinge 23, and a supporting mating rod 32 is fixedly provided on the mating driving plate 3, and the supporting mating rod 32 is inserted in the supporting socket 17, and a first connecting spring 33 is sleeved on the supporting mating rod 32, and a supporting top plate 34 is fixedly provided at the upper end of the mating driving plate 3, and an arc bearing plate 35 is fixedly provided on the supporting top plate 34, and inclined strips 36 are symmetrically fixedly provided on the arc bearing plate 35, and a mating platform 37 is fixedly provided between the inclined strips 36, and the two ends of the first connecting spring 33 are respectively fixed on the mating protrusion 16 and the mating driving plate 3.

[0038] A liquid injection box 4 is fixedly installed on the mounting support ring 184, a liquid injection pipe 41 is fixedly arranged at the lower end of the liquid injection box 4, a solenoid valve 42 is installed on the liquid injection pipe 41, and a connecting pipe groove 43 is opened on the liquid injection pipe 41, connecting plate frames 44 are symmetrically fixedly arranged on both sides of the liquid injection pipe 41, a connecting channel 45 is opened on the connecting plate frame 44, and the inner wall of the connecting channel 45 is smooth and free of burrs.

[0039] A closed cover plate 5 is installed at the lower end of the liquid injection box 4, and a movable delivery pipe 51 is fixedly provided on the upper end of the closed cover plate 5. The movable delivery pipe 51 is connected with the closed cover plate 5, and a sealing pipe sleeve 52 is fixedly provided on the upper end of the movable delivery pipe 51. The sealing pipe sleeve 52 is inserted into the connecting pipe groove 43 to achieve a sealed connection between the liquid injection pipe 41 and the movable delivery pipe 51. Load-bearing matching rods 53 are symmetrically fixedly provided on both sides of the closed cover plate 5, and a connecting protrusion 54 is also fixedly provided on the closed cover plate 5, and the connecting protrusion 54 is hinged with a second connecting hinge rod 55.

[0040] The two sides of the closed cover plate 5 are symmetrically installed with load-bearing movable plates 6, on which matching vertical plates 61 are fixedly arranged, and on which mounting channels 62 are provided, and on which matching vertical plates 61 are provided load-bearing matching holes 63 are symmetrically provided at the matching vertical plates 61 at both ends of the mounting channels 62, and in which load-bearing matching holes 63 are inserted, and in which load-bearing matching holes 63, upper convex connecting plates 64 are fixedly arranged at the upper ends of the matching vertical plates 61, and on which connecting posts 65 are symmetrically fixedly arranged, and the connecting posts 65 are inserted in the connecting channels 45, and the connecting posts 65 are in contact with the inner wall of the connecting channels 45.

[0041] A wiping sponge block 7 is installed on the supporting movable plate 6, and a mounting portion 71 is fixedly provided on the wiping sponge block 7. The mounting portion 71 is inserted into the mounting channel 62, and limited contact portions 72 are symmetrically fixedly provided at both ends of the mounting portion 71, and the limited contact portions 72 are in contact with the matching vertical plate 61.

[0042] The upper end of the second connecting hinge 55 is hinged with a linkage matching frame 8, and a lower convex connecting plate 80 is fixedly provided on the lower side of one end of the linkage matching frame 8. The lower convex connecting plate 80 is inserted in the matching channel 181, and a mounting plug 81 is fixedly provided on the linkage matching frame 8 on the upper side of the lower convex connecting plate 80. The mounting plug 81 is inserted in the mounting plug hole 183, and a second connecting spring 82 is sleeved on the mounting plug 81, and both ends of the second connecting spring 82 are respectively fixed on the mounting convex plate 182 and the linkage matching frame 8.

[0043] A lower convex bearing plate 83 is fixedly provided on the lower side of the other end of the linkage matching frame 8, and a second rotating wheel 831 is installed on the lower end of the lower convex bearing plate 83. The second rotating wheel 831 contacts the outer end surface of the arc bearing plate 35, and the outer surface of the arc bearing plate 35 is smooth and free of burrs.

[0044] A method for injecting liquid into a square aluminum shell lithium battery comprises the following steps:

[0045] Step 1: Placement of the battery: Place the battery in the restricted positioning frame 2;

[0046] Step 2: Rotation of the carrying turntable 14: The motor 12 is controlled by the program controller 11 to rotate, thereby driving the carrying turntable 14 to rotate;

[0047] Step 3: Filling the liquid at the filling point: When the battery rotates to the bottom of the filling box 4, the program controller 11 controls the solenoid valve 42 to open to achieve filling;

[0048] Step 4: Removal and placement of batteries: As the carrying turntable 14 rotates, the batteries that have been filled with liquid are rotated and removed, and the batteries are removed and replaced with batteries that have not been filled with liquid, so that the batteries are continuously filled with liquid.

[0049] When performing secondary liquid injection of the battery, the battery will be placed in the limiting positioning frame 2 in sequence as the supporting turntable 14 rotates, and the limiting positioning frame 2 plays a role of limiting and positioning the battery. When the limiting positioning frame 2 of the battery is driven to rotate toward the liquid injection point, the inclined slats 36 at the liquid injection point will contact the first rotating wheel 186 as the supporting turntable 14 rotates, so that the cooperation of the inclined slats 36 and the first rotating wheel 186 will make the matching drive plate 3 move away from the liquid injection box 4 until the first rotating wheel 186 contacts the matching platform 37. At this time, the battery arrives at the liquid injection point, and the liquid injection port of the battery is aligned with the liquid injection tube 41 up and down. In the process of the battery moving at the liquid injection point, as the matching drive plate 3 moves, the battery is connected to the first connecting hinge. The rod 23 will push the limiting positioning frame 2 to move upward, so that as the limiting positioning frame 2 moves upward, it will contact the higher part of the battery, so that the battery can be better supported and limited during the injection process, ensuring the stability of the battery during the injection process. At the same time, as the driving plate 3 moves, it will push the linkage matching frame 8 to move, so that the lower convex connecting plate 80 moves toward the injection box 4. As the linkage matching frame 8 moves, the second connecting hinge 55 will push the closing cover plate 5 to move downward. As the closing cover plate 5 moves downward, it covers the injection port of the battery, so that the splashing of liquid can be effectively avoided during the injection process. When the closing cover plate 5 moves downward, it will bring the battery under the action of the connecting channel 45. The two supporting movable plates 6 are driven to move in opposite directions, so that the wiping sponge block 7 is no longer directly under the closed cover plate 5, ensuring smooth contact between the closed cover plate 5 and the battery filling port. At this time, the program controller 11 controls the solenoid valve 42 to open and start filling. After the filling is completed, the program controller 11 controls the motor 12 to drive the supporting turntable 14 to continue to rotate, so that the battery that has been filled with liquid is moved away from the filling point, and the next battery is rotated to the filling point for filling to achieve continuous filling, thereby improving the filling efficiency. As the battery that has been filled with liquid rotates, the driving plate 3 is reset under the action of the first connecting spring 33. As it is reset, the limiting positioning frame 2 moves downward and resets. In this process, the limiting positioning frame 2 moves downward from a higher position of the battery, that is, the same principle is used from the battery. The height of the battery can better ensure the stability of the battery after filling with liquid during movement by limiting it, and when the limiting positioning frame 2 is reset, it is at the lower end of the battery, which is convenient for taking and placing the battery, that is, it is convenient to take out the battery after filling with liquid and then put on the battery to be filled with liquid, and as the battery after filling with liquid is moved away, the closed cover plate 5 will also move upward, which can avoid the battery from being worn by the closed cover plate 5 due to large friction during movement, and also avoid affecting the movement of the battery. In the process of moving upward, the closed cover plate 5 will also drive the wiping sponge block 7 to move towards each other and reset, so that the lower end surface of the closed cover plate 5 can be wiped under the action of the wiping sponge block 7, and the liquid splashed on the closed cover plate 5 can be wiped off.Avoid liquid accumulation on the closing cover 5.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A square aluminum shell lithium battery turntable secondary liquid injection machine, comprising a liquid injection frame (1), characterized in that: The injection machine frame (1) is fixedly provided with a program controller (11) and a motor (12); the motor (12) is provided with a bearing shaft (13); the bearing shaft (13) is fixedly provided with a bearing turntable (14); a movable connection hole (15) is provided on the circumference of the bearing turntable (14); a matching protrusion (16) is fixedly provided on the circumference of the bearing turntable (14); a supporting plug hole (17) is provided on the matching protrusion (16); the supporting plug hole (17) passes through the bearing turntable (14); a bearing plate frame (18) is fixedly provided at one end of the injection machine frame (1); a matching channel (181) is provided on the upper end of the bearing plate frame (18); a portion of the bearing plate frame (18) at one end of the matching channel (181) is provided on the upper end of the bearing plate frame (18); A mounting convex plate (182) is fixedly provided, and a mounting plug hole (183) is opened on the mounting convex plate (182); a mounting support ring (184) is fixedly provided on the bearing plate frame (18) at the other end of the matching channel (181); a matching push-out strip (185) is fixedly provided at the lower end of the mounting support ring (184); a first rotating wheel (186) is installed on the matching push-out strip (185); a continuous convenient liquid injection mechanism is installed on the liquid injection frame (1); the continuous convenient liquid injection mechanism comprises a limiting positioning frame (2), a matching driving plate (3), a liquid injection box (4), a closing cover plate (5), a bearing movable plate (6), a wiping sponge block (7) and a linkage matching frame (8); the limiting positioning frame (2) is circumferentially mounted on A movable connecting rod (21) is symmetrically fixedly arranged on the carrying turntable (14) and the limiting positioning frame (2), the movable connecting rod (21) is inserted into the movable connecting hole (15), and a connecting bottom bar (22) is fixedly arranged at the lower end of the movable connecting rod (21), the connecting bottom bar (22) is located below the carrying turntable (14), and a first connecting hinge rod (23) is hingedly connected to the connecting bottom bar (22), and a matching driving plate (3) is hingedly connected to the lower end of the first connecting hinge rod (23), and a matching bottom bar (31) is fixedly arranged at the lower end of the matching driving plate (3), and the matching bottom bar (31) is hingedly connected to the first connecting hinge rod (23), and a supporting matching rod (32) is fixedly arranged on the matching driving plate (3), and the supporting matching rod (32) is fixedly arranged on the matching driving plate (3). The coupling rod (32) is inserted into the support socket (17), and a first connecting spring (33) is sleeved on the support coupling rod (32). A support top plate (34) is fixedly provided on the upper end of the coupling drive plate (3), and a circular arc bearing plate (35) is fixedly provided on the support top plate (34). Inclined slats (36) are symmetrically fixedly provided on the circular arc bearing plate (35), and a coupling platform (37) is fixedly provided between the inclined slats (36). As the supporting turntable (14) rotates, the inclined slats (36) at the injection point will contact the first rotating wheel (186), so that the coupling drive plate (3) will move in a direction away from the injection box (4) under the cooperation of the inclined slats (36) and the first rotating wheel (186).Until the first rotating wheel (186) contacts the matching platform (37).

2. According to claim 1, a square aluminum shell lithium battery turntable secondary liquid injection machine, characterized in that: A liquid injection box (4) is fixedly mounted on the mounting support ring (184); a liquid injection pipe (41) is fixedly mounted at the lower end of the liquid injection box (4); a solenoid valve (42) is mounted on the liquid injection pipe (41); a connecting pipe groove (43) is provided on the liquid injection pipe (41); connecting plate frames (44) are symmetrically fixedly mounted on both sides of the liquid injection pipe (41); and a connecting channel (45) is provided on the connecting plate frame (44).

3. A square aluminum shell lithium battery turntable secondary liquid injection machine according to claim 2, characterized in that: A closed cover plate (5) is installed at the lower end of the liquid injection box (4), a movable delivery pipe (51) is fixedly provided at the upper end of the closed cover plate (5), the movable delivery pipe (51) is connected to the closed cover plate (5), and a sealing pipe sleeve (52) is fixedly provided at the upper end of the movable delivery pipe (51), the sealing pipe sleeve (52) is inserted into the connecting pipe groove (43), load-bearing matching rods (53) are symmetrically fixedly provided on both sides of the closed cover plate (5), and a connecting protrusion (54) is also fixedly provided on the closed cover plate (5), and the connecting protrusion (54) is hinged to a second connecting hinge rod (55).

4. A square aluminum shell lithium battery turntable secondary liquid injection machine according to claim 3, characterized in that: The two sides of the closed cover plate (5) are symmetrically provided with bearing movable plates (6), the bearing movable plates (6) are fixedly provided with matching vertical plates (61), the matching vertical plates (61) are provided with mounting channels (62), the matching vertical plates (61) at both ends of the mounting channels (62) are symmetrically provided with bearing matching holes (63), the bearing matching holes (63) are plugged with bearing matching rods (53), the upper ends of the matching vertical plates (61) are fixedly provided with upper convex connecting plates (64), the upper convex connecting plates (64) are symmetrically fixedly provided with connecting plugs (65), and the connecting plugs (65) are plugged into the connecting channels (45).

5. A square aluminum shell lithium battery turntable secondary liquid injection machine according to claim 4, characterized in that: A wiping sponge block (7) is mounted on the bearing movable plate (6), a mounting portion (71) is fixedly provided on the wiping sponge block (7), the mounting portion (71) is inserted into the mounting channel (62), and limited contact portions (72) are symmetrically fixedly provided at both ends of the mounting portion (71), the limited contact portions (72) are in contact with the matching vertical plate (61).

6. A square aluminum shell lithium battery turntable secondary liquid injection machine according to claim 5, characterized in that: The upper end of the second connecting hinge rod (55) is hinged with a linkage matching frame (8), and a lower convex connecting plate (80) is fixedly provided on the lower side of one end of the linkage matching frame (8), and the lower convex connecting plate (80) is inserted into the matching channel (181), and a mounting plug rod (81) is fixedly provided on the linkage matching frame (8) on the upper side of the lower convex connecting plate (80), and the mounting plug rod (81) is inserted into the mounting plug hole (183), and a second connecting spring (82) is sleeved on the mounting plug rod (81).

7. A square aluminum shell lithium battery turntable secondary liquid injection machine according to claim 6, characterized in that: A lower convex bearing plate (83) is fixedly provided on the lower side of the other end of the linkage matching frame (8), a second rotating wheel (831) is mounted on the lower end of the lower convex bearing plate (83), and the second rotating wheel (831) is in contact with the outer end surface of the arc bearing plate (35).

8. A method for injecting liquid into a square aluminum shell lithium battery, characterized in that: The liquid injection method is applicable to the square aluminum shell lithium battery turntable secondary liquid injection machine according to any one of claims 1 to 7, comprising the following steps: Step 1: Place the battery: Place the battery in the restricted positioning frame (2); Step 2: Rotation of the carrying turntable (14): the motor (12) is controlled by the program controller (11) to rotate, thereby driving the carrying turntable (14) to rotate; Step 3: Filling at the filling point: When the battery rotates to the bottom of the filling box (4), the program controller (11) controls the solenoid valve (42) to open, thereby achieving filling; Step 4: Removal and placement of batteries: As the carrying turntable (14) rotates, the batteries that have been filled with liquid are rotated and removed, and the batteries are removed and replaced with batteries that have not been filled with liquid, thereby continuously filling the batteries.

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