A multifunctional integrated production device for cylindrical lithium batteries

Abstract

The present invention belongs to the field of lithium battery production, and specifically is a multifunctional integrated production device for cylindrical lithium batteries, comprising a base, a rubber pad fixedly connected to the top of the base, a placing table arranged on the top of the rubber pad, four legs fixedly connected to the bottom of the base at equal intervals, and a support frame fixedly connected to the top of the base; the present invention provides a multifunctional integrated production device for cylindrical lithium batteries, wherein the placing table and the lithium battery shell are intermittently vibrated downwardly by controlling a second motor, so as to accelerate the speed at which the electrolyte injected into the lithium battery shell penetrates downwardly, and the electrolyte can be prevented from forming bubbles in the electrode material and the diaphragm by vibration, and when the placing table is controlled to move up and down, a material discharge component is cooperated to make the liquid nitrogen in the second container quantitatively discharged downwardly, and the liquid nitrogen after discharge volatilizes into nitrogen gas, so that the lithium battery shell and the nozzle below are filled with nitrogen gas, and due to the inertness of nitrogen gas, the electrolyte is prevented from reacting with the air after being sprayed out from the nozzle.

Description

Technical Field

[0001] The invention belongs to the field of lithium battery production, and specifically relates to a multifunctional integrated production device for cylindrical lithium batteries. Background Art

[0002] The lithium battery production process includes the selection of electrode raw materials, then coating the electrode surface, cutting large electrodes into strips, then winding the strip electrodes into the internal core of the lithium battery, loading the core into the shell, welding the core, fixing it in the shell, then filling the shell with electrolyte, and finally sealing it to complete the production of the lithium battery.

[0003] In the existing technology, when injecting electrolyte into the lithium battery shell, it is not convenient to treat the air around the injection environment. When the electrolyte injected into the lithium battery shell and the electrolyte being injected are easily exposed to the air, the moisture in the air will react with the lithium salt in the electrolyte to generate hydrofluoric acid, affecting the properties of the electrolyte and the chemical environment inside the battery. In addition, after the electrolyte is injected into the lithium battery shell, it is difficult to diffuse and penetrate quickly and evenly, and it is easy to form bubbles in the electrode material and the diaphragm, affecting the quality of the lithium battery.

[0004] To this end, the present invention provides a multifunctional integrated production device for cylindrical lithium batteries. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art and solve the problem that it is inconvenient to process the air around the injection environment when injecting electrolyte into the lithium battery shell, when the electrolyte injected into the lithium battery shell and the electrolyte being injected are easily exposed to the air, the moisture in the air will react with the lithium salt in the electrolyte to generate hydrofluoric acid, affecting the properties of the electrolyte and the chemical environment inside the battery, and the electrolyte is difficult to diffuse and penetrate quickly and evenly after being injected into the lithium battery shell, and it is easy to form bubbles in the electrode material and the diaphragm, affecting the quality of the lithium battery. The present invention proposes a multifunctional integrated production device for cylindrical lithium batteries.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a multifunctional integrated production device for cylindrical lithium batteries described in the present invention includes a base, a rubber pad is fixedly connected to the top of the base, a placing table is arranged on the top of the rubber pad, four supporting legs are equidistantly fixedly connected to the bottom of the base, a support frame is fixedly connected to the top of the base, a first container is fixedly connected to the top of the support frame, four U-shaped tubes are equidistantly fixedly connected to the inner wall of the first container, the bottoms of the four U-shaped tubes all penetrate the first container and are fixedly connected to an L-shaped tube, four push rods are equidistantly fixedly connected to the top of the placing table, the outer walls of the four push rods are fixedly connected to the fixing frame, the inner walls of the four fixing frames are fixedly connected to the first rotating shaft, the outer walls of the four first rotating shafts are rotatably connected to nozzles, a hose is connected between the L-shaped tube and the nozzle, and a quantitative injection assembly is arranged at the bottom of the L-shaped tube.

[0007] Preferably, the inner wall of the base is slidably connected with a rack, the top of the rack is fixedly connected to the placing table, the bottom of the base is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a half gear, the half gear is meshingly connected with the rack, the inner wall of the rack is fixedly connected with a sliding shaft, the sliding shaft is slidably connected to the base, the outer wall of the sliding shaft is sleeved with a telescopic spring, the top of the telescopic spring is fixedly connected to the base, and the bottom of the telescopic spring is fixedly connected to the rack.

[0008] Preferably, the quantitative injection assembly includes a sleeve, which is fixedly mounted on the bottom of the L-shaped tube, the top of the push rod extends to the interior of the sleeve and is fixedly connected to a piston plate, the piston plate is slidably connected to the sleeve, and two one-way valves are provided on the inner wall of the L-shaped tube, the two one-way valves are respectively located on both sides of the sleeve, and the two one-way valves are both opened to the hose.

[0009] Preferably, the four nozzles are all installed at an angle, the bottoms of the four nozzles are fixedly connected to connecting rods, one ends of the four connecting rods are fixedly connected to U-shaped frames, the inner walls of the four U-shaped frames are fixedly connected to second rotating shafts, the outer walls of the four second rotating shafts are rotatably connected to guide wheels, and a spring sheet is fixedly connected between the nozzles and the fixed frame.

[0010] Preferably, a connecting frame is fixedly connected to the top of the first container, a second container is fixedly connected to the top of the connecting frame, a connecting pipe is fixedly connected between the second container and the first container, and a feeding assembly is provided on the inner wall of the connecting pipe.

[0011] Preferably, the feeding assembly includes a feeding pipe, which is arranged inside the connecting pipe and is slidably connected to the connecting pipe. A feeding trough is provided on the inner wall of the feeding pipe, and two feeding ports are symmetrically provided on the outer wall of the feeding pipe, and both of the two feeding ports are communicated with the feeding trough. The bottom of the feeding pipe passes through the first container and is fixedly connected with a collecting box. The collecting box is configured as an air cylinder and a plurality of air outlet pipes are equidistantly fixedly connected to the bottom thereof. Two air outlets are symmetrically provided on the outer wall of the air outlet pipe, and the tops of the four fixed frames are fixedly connected with arc frames, and the four arc frames are fixedly connected to the collecting box.

[0012] Preferably, a diverter plate is fixedly connected to the bottom of the air outlet pipe, and the diverter plate is arranged in a ring shape and its inner wall and outer wall are arranged as continuous inclined surfaces.

[0013] Preferably, a collecting hopper is fixedly connected to the bottom of the collecting box, and the collecting hopper is configured as a hollow semicircular body. A heating wire is provided inside the collecting hopper, and four mounting brackets are fixedly connected to the inner wall of the diverter plate at equal intervals, and a mounting plate is fixedly connected between the four mounting brackets, and a third motor is fixedly connected to the bottom of the mounting plate, and the output end of the third motor extends to the interior of the collecting hopper and is fixedly connected to a stirring rod, and a stirring blade is fixedly connected to the bottom of the stirring rod, and the bottom of the stirring blade is configured to be an arc that fits the collecting hopper.

[0014] Preferably, a first motor is fixedly connected to the inner wall of the placement table, and an output end of the first motor passes through the placement table and is fixedly connected to a vacuum suction cup.

[0015] Preferably, a blade is fixedly connected to the outer wall of the discharge pipe, the blade is located inside the first container, the blade is inclined upward from the outside to the inside, and a liquid outlet is opened on the inner wall of the blade.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The multifunctional integrated production device for cylindrical lithium batteries described in the present invention cooperates with the material discharge assembly to discharge the liquid nitrogen in the second container downward in a quantitative manner when the placing table is controlled to move up and down. The liquid nitrogen after discharge evaporates into nitrogen gas, so that the lithium battery shell and the nozzle below are filled with nitrogen gas. Due to the inertness of nitrogen gas, the electrolyte is prevented from reacting with the air after being sprayed out from the nozzle.

[0018] 2. The multifunctional integrated production device for cylindrical lithium batteries described in the present invention discharges nitrogen simultaneously through a plurality of outlet pipes, so that the coverage of nitrogen is large, and the nitrogen discharged from the outlet is diverted by the diverter plate. The nitrogen flowing outside the diverter plate can isolate the air near the nozzle, and the nitrogen flowing inside the diverter plate can flow downward in a concentrated manner to fill the top of the lithium battery shell, thereby ensuring that the electrolyte being injected and the electrolyte injected into the lithium battery shell will not react with the air.

[0019] 3. The multifunctional integrated production device for cylindrical lithium batteries described in the present invention cooperates with the quantitative injection component when the control placement table moves up and down, so that four nozzles inject electrolyte at the same time, and the electrolyte is injected into the lithium battery shell from four directions, thereby making it easier for the electrolyte to diffuse in the electrode material and diaphragm in the lithium battery shell, and the quantitative injection component can be used to inject electrolyte in small amounts and multiple times, preventing the electrolyte from being difficult to penetrate downwards and easily overflowing due to excessive electrolyte injection at one time.

[0020] 4. The multifunctional integrated production device for cylindrical lithium batteries described in the present invention controls the rotation of the lithium battery shell and continuously adjusts the position of the electrolyte injection to make the electrolyte injection more uniform. The centrifugal force is generated while the lithium battery shell rotates, so that the electrolyte entering the lithium battery shell can flow to the inner wall of the lithium battery shell, preventing the electrode material and diaphragm attached to the inner wall of the lithium battery shell from being difficult to absorb the electrolyte.

[0021] 5. The multifunctional integrated production device for cylindrical lithium batteries described in the present invention controls the placement table and the lithium battery shell to vibrate downward intermittently through a second motor, thereby accelerating the speed at which the electrolyte injected into the lithium battery shell penetrates downward, and the vibration can prevent the electrolyte from forming bubbles in the electrode material and the diaphragm. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 is a stereogram of the present invention;

[0024] Figure 2 is a cross-sectional view of the present invention;

[0025] Figure 3 It is a stereoscopic diagram of the material discharge pipe and the material collection box of the present invention in cooperation with each other;

[0026] Figure 4 It is a stereoscopic diagram of the nozzle and the guide wheel of the present invention in cooperation with each other;

[0027] Figure 5 It is a stereoscopic diagram of the L-shaped tube and the sleeve box of the present invention in cooperation with each other;

[0028] Figure 6 The present invention Figure 2 The enlarged view of point A in the middle;

[0029] Figure 7 The present invention Figure 2 The enlarged view of point B in the middle;

[0030] Figure 8 The present invention Figure 2 Enlarged view of point C in the middle;

[0031] Fig. 9 The present invention Figure 2 The enlarged view of point D in the middle;

[0032] In the figure: 1, base; 2, support frame; 3, first container; 4, connecting frame; 5, second container; 6, rack; 7, placing table; 8, rubber pad; 9, first motor; 10, vacuum suction cup; 11, second motor; 12, half gear; 13, sliding shaft; 14, telescopic spring; 15, push rod; 16, fixed frame; 17, first rotating shaft; 18, nozzle; 19, spring sheet; 20, connecting rod; 21, U-shaped frame; 22, second rotating shaft; 23, guide wheel; 24, U-shaped tube; 25. L-shaped tube; 26. One-way valve; 27. Sleeve; 28. Piston plate; 29. ​​Hose; 30. Connecting tube; 31. Feed pipe; 32. Feed inlet; 33. Feed trough; 34. Collecting box; 35. Collecting hopper; 36. Heating wire; 37. Air outlet pipe; 38. Air outlet; 39. Diverter plate; 40. Mounting frame; 41. Mounting plate; 42. Third motor; 43. Stirring rod; 44. Stirring blade; 45. Arc frame; 46. Blade; 47. Liquid outlet; 48. Support foot. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0034] like Figures 1 to 9As shown, the present invention provides a technical solution, a multifunctional integrated production device for cylindrical lithium batteries, comprising a base 1, a rubber pad 8 is fixedly connected to the top of the base 1, a placing table 7 is arranged on the top of the rubber pad 8, four legs 48 are equidistantly fixedly connected to the bottom of the base 1, a support frame 2 is fixedly connected to the top of the support frame 2, a first container 3 is fixedly connected to the inner wall of the first container 3, four U-shaped tubes 24 are equidistantly fixedly connected, the bottoms of the four U-shaped tubes 24 all penetrate the first container 3 and are fixedly connected to an L-shaped tube 25, four push rods 15 are equidistantly fixedly connected to the top of the placing table 7, the outer walls of the four push rods 15 are fixedly connected to a fixing frame 16, the inner walls of the four fixing frames 16 are fixedly connected to a first rotating shaft 17, the outer walls of the four first rotating shafts 17 are rotatably connected to a nozzle 18, a hose 29 is connected between the L-shaped tube 25 and the nozzle 18, and a quantitative injection assembly is arranged at the bottom of the L-shaped tube 25.

[0035] Through the above technical scheme, electrolyte is loaded into the first container 3, and the lithium battery shell is placed on the placement table 7 by a mechanical arm and a clamp, and is located between the four nozzles 18. The quantitative injection component is controlled to allow the four L-shaped tubes 25 to simultaneously extract the electrolyte in the first container 3, and the electrolyte is transported to the four nozzles 18 along the four hoses 29. The electrolyte is injected through the four hoses 29 at the same time, so that the electrolyte is injected into the lithium battery shell from four directions, thereby making it easier for the electrolyte to diffuse in the electrode material and the diaphragm in the lithium battery shell. The quantitative injection component can also be used to inject electrolyte in small amounts and multiple times, thereby preventing the electrolyte from being difficult to penetrate downwards and easily overflowing due to excessive electrolyte injection at one time.

[0036] Specifically, the inner wall of the base 1 is slidably connected with a rack 6, the top of the rack 6 is fixedly connected to the placement table 7, the bottom of the base 1 is fixedly connected with a second motor 11, the output end of the second motor 11 is fixedly connected with a half gear 12, the half gear 12 is meshed with the rack 6, the inner wall of the rack 6 is fixedly connected with a sliding shaft 13, the sliding shaft 13 is slidably connected to the base 1, the outer wall of the sliding shaft 13 is sleeved with a telescopic spring 14, the top of the telescopic spring 14 is fixedly connected to the base 1, and the bottom of the telescopic spring 14 is fixedly connected to the rack 6.

[0037] By means of the above technical scheme, the second motor 11 is started while the electrolyte is injected, driving the half gear 12 to rotate. When the toothed side of the half gear 12 is close to the rack 6, the half gear 12 meshes with the rack 6. With the rotation of the half gear 12, the rack 6 is driven to move upward, so that the placement table 7 and the lithium battery housing are moved upward. After the rack 6 moves upward, the telescopic spring 14 is pressed. When the toothless side of the half gear 12 fits the rack 6, the half gear 12 loses the meshing relationship with the rack 6. Under the action of the gravity of the placement table 7 and the telescopic spring 14, the placement table 7 and the lithium battery housing fall downward rapidly. After the placement table 7 hits the rubber pad 8, it stops falling downward. Thus, after the second motor 11 is started, the lithium battery housing is driven to vibrate downward intermittently, so as to accelerate the speed at which the electrolyte injected into the lithium battery housing penetrates downward, and the vibration can prevent the electrolyte from forming bubbles in the electrode material and the diaphragm.

[0038] Specifically, the quantitative injection assembly includes a sleeve 27, which is fixedly installed at the bottom of the L-shaped tube 25. The top of the push rod 15 extends to the inside of the sleeve 27 and is fixedly connected to a piston plate 28. The piston plate 28 is slidably connected to the sleeve 27. Two one-way valves 26 are provided on the inner wall of the L-shaped tube 25. The two one-way valves 26 are respectively located on both sides of the sleeve 27, and the two one-way valves 26 are both opened to the hose 29.

[0039] Through the above technical solution, before injecting electrolyte into the lithium battery shell, the placement table 7 is controlled to move upward once, driving the four push rods 15 to move upward, so that the four piston plates 28 move upward, and the piston plates 28 slide upward in the sleeve 27 to squeeze out the air in the sleeve 27, and the air is discharged along the hose 29. Then the placement table 7 moves downward, driving the four push rods 15 to move downward, so that the four piston plates 28 move downward. Under the pulling action of the four piston plates 28, in conjunction with the four sets of one-way valves 26, the electrolyte in the first container 3 can be pumped into the four sleeves 27 along the four U-shaped tubes 24. After the placement table 7 is controlled to move upward once, the electrolyte begins to be injected into the lithium battery shell. Similarly, the placement table 7 is controlled to move upward, driving the four push rods 15 to move upward, so that the four piston plates 28 move upward in the four sleeves 27 respectively. With the cooperation of the four groups of one-way valves 26, the electrolyte in the four sleeves 27 is squeezed out along the four L-shaped tubes 25 respectively, and the extruded electrolyte is transported to the four nozzles 18 along the four hoses 29 and sprayed out from the four nozzles 18. This reciprocating process allows the nozzles 18 to intermittently and quantitatively inject electrolyte into the lithium battery shell after the second motor 11 is started.

[0040] Specifically, the four nozzles 18 are all installed at an angle, and the bottoms of the four nozzles 18 are fixedly connected to connecting rods 20, one ends of the four connecting rods 20 are fixedly connected to U-shaped frames 21, the inner walls of the four U-shaped frames 21 are fixedly connected to second rotating shafts 22, the outer walls of the four second rotating shafts 22 are rotatably connected to guide wheels 23, and a spring sheet 19 is fixedly connected between the nozzles 18 and the fixed frame 16.

[0041] Through the above technical scheme, the lithium battery shell is placed between the four nozzles 18 by the mechanical arm and the clamp, and pressed downward. The lithium battery shell squeezes the tops of the four nozzles 18, pushes the four nozzles 18 to rotate downward at the same time, drives the four connecting rods 20 to rotate outward at the same time, and makes the four guide wheels 23 open outward at the same time. The four nozzles 18 rotate downward while pressing the four spring sheets 19. After the lithium battery shell passes through the four nozzles 18, it is placed on the placement table 7, and the mechanical arm and the clamp are retracted. Under the action of the four spring sheets 19, the four nozzles 18 and the four guide wheels 23 are driven to reset. Under the squeezing action of the four guide wheels 23, the position of the lithium battery shell is centered, located at the center between the four nozzles 18, so that the electrolyte can be evenly injected into the lithium battery shell. After the electrolyte injection is completed, the lithium battery shell is taken out by the mechanical arm and the clamp. After the clamp extends to the top of the lithium battery shell, it moves downward, presses the four nozzles 18 downward again, and makes the four guide wheels 23 open again, so as to facilitate the upward removal of the lithium battery shell.

[0042] Specifically, the top of the first container 3 is fixedly connected to a connecting frame 4, the top of the connecting frame 4 is fixedly connected to a second container 5, a connecting pipe 30 is fixedly connected between the second container 5 and the first container 3, and a material discharge assembly is provided on the inner wall of the connecting pipe 30.

[0043] Through the above technical solution, liquid nitrogen is loaded into the second container 5. When the placement table 7 is controlled to move upward, the liquid nitrogen is quantitatively dropped downward in cooperation with the feeding assembly. The liquid nitrogen after being dropped evaporates into nitrogen gas, so that the lithium battery shell and the nozzle 18 below are filled with nitrogen gas. Due to the inertness of nitrogen gas, the electrolyte is prevented from reacting with the air after being sprayed out from the nozzle 18, and the electrolyte is prevented from reacting with the air above when penetrating into the lithium battery shell.

[0044] Specifically, the feeding assembly includes a feeding pipe 31, which is arranged inside the connecting pipe 30 and is slidably connected to the connecting pipe 30. A feeding trough 33 is provided on the inner wall of the feeding pipe 31, and two feeding ports 32 are symmetrically provided on the outer wall of the feeding pipe 31. Both feeding ports 32 are communicated with the feeding trough 33. The bottom of the feeding pipe 31 passes through the first container 3 and is fixedly connected to a collecting box 34. The collecting box 34 is configured as an air cylinder and a plurality of air outlet pipes 37 are equidistantly fixedly connected to the bottom thereof. Two air outlets 38 are symmetrically provided on the outer wall of the air outlet pipe 37. The tops of the four fixed frames 16 are fixedly connected to arc frames 45, and the four arc frames 45 are fixedly connected to the collecting box 34.

[0045] Through the above technical scheme, the connecting pipe 30 is sealed by setting the feed pipe 31, which is located on the inner wall of the connecting pipe 30, to prevent liquid nitrogen from leaking from the connecting pipe 30. When the placement table 7 moves upward, it drives the fixed frame 16 to move upward, so that the arc frame 45 moves upward, drives the collecting box 34 to move upward, and moves the feed pipe 31 upward. When the two feed ports 32 on the feed pipe 31 move into the second container 5, the liquid nitrogen in the second container 5 enters the two feed pipes 31 along the two feed ports 32, and enters the collecting box 34 along the feed trough 33. The liquid nitrogen entering the collecting box 34 continuously evaporates and seeps out along a number of gas outlet pipes 37, so that the nitrogen gas diffuses over a larger range and isolates the air below.

[0046] Specifically, a diverter plate 39 is fixedly connected to the bottom of the air outlet pipe 37. The diverter plate 39 is arranged in a ring shape, and the inner wall and the outer wall thereof are arranged as continuous inclined surfaces.

[0047] Through the above technical solution, the nitrogen entering the outlet pipe 37 is discharged along the outlets 38 on both sides and diffuses to both sides along the inclined surface of the diverter plate 39. The nitrogen flowing outside the diverter plate 39 can isolate the air near the nozzle 18, and the nitrogen flowing inside the diverter plate 39 can flow downward in a concentrated manner to fill the top of the lithium battery shell, thereby ensuring that the electrolyte being injected and the electrolyte injected into the lithium battery shell will not react with the air.

[0048] Specifically, the bottom of the collection box 34 is fixedly connected to the collection hopper 35, and the collection hopper 35 is set as a hollow semicircular body. A heating wire 36 is set inside the collection hopper 35. Four mounting brackets 40 are fixedly connected to the inner wall of the diverter plate 39 at equal intervals. A mounting plate 41 is fixedly connected between the four mounting brackets 40. The bottom of the mounting plate 41 is fixedly connected to a third motor 42. The output end of the third motor 42 extends to the interior of the collection hopper 35 and is fixedly connected to a stirring rod 43. The bottom of the stirring rod 43 is fixedly connected to a stirring blade 44, and the bottom of the stirring blade 44 is set to an arc shape that fits the collection hopper 35.

[0049] Through the above technical solution, the liquid nitrogen entering the collecting box 34 is accumulated in the collecting hopper 35, the heating wire 36 is started to heat the liquid nitrogen in the collecting hopper 35 to accelerate the volatilization of the liquid nitrogen, and at the same time the third motor 42 is started to drive the stirring rod 43 and the stirring blade 44 to rotate, so that the liquid nitrogen is evenly heated, and the volatilized nitrogen expands rapidly in the collecting box 34 and is ejected along a plurality of outlet pipes 37.

[0050] Specifically, the inner wall of the placement table 7 is fixedly connected with the first motor 9 , and the output end of the first motor 9 passes through the placement table 7 and is fixedly connected with the vacuum suction cup 10 .

[0051] Through the above technical solution, the lithium battery shell placed on the placement table 7 first contacts the vacuum suction cup 10, and after the position of the lithium battery shell is centered, the lithium battery shell is fixed by the vacuum suction cup 10. When injecting electrolyte, the first motor 9 is started to drive the vacuum suction cup 10 to rotate, so that the lithium battery shell rotates, thereby continuously adjusting the position of the electrolyte injection to make the electrolyte injection more uniform, and the centrifugal force is generated while the lithium battery shell rotates, so that the electrolyte entering the lithium battery shell can flow to the inner wall of the lithium battery shell, preventing the electrode material and diaphragm attached to the inner wall of the lithium battery shell from being difficult to absorb the electrolyte.

[0052] Specifically, a blade 46 is fixedly connected to the outer wall of the discharge pipe 31 . The blade 46 is located inside the first container 3 . The blade 46 is inclined upward from the outside to the inside. A liquid outlet 47 is formed on the inner wall of the blade 46 .

[0053] Through the above technical solution, the discharge pipe 31 moves up and down, driving the blade 46 to move up and down in the first container 3. The blade 46 reciprocates and squeezes downward, causing the electrolyte under the blade 46 to continuously roll and gush upward along the liquid outlet 47, thereby causing the electrolyte in the first container 3 to circulate violently to prevent deposition.

[0054] When in use, the electrolyte is loaded into the first container 3, and the lithium battery shell is placed between the four nozzles 18 by the mechanical arm and the clamp, and pressed downward. The lithium battery shell squeezes the tops of the four nozzles 18, pushing the four nozzles 18 to rotate downward at the same time, driving the four connecting rods 20 to rotate outward at the same time, so that the four guide wheels 23 are opened outward at the same time, and the four nozzles 18 rotate downward while pressing the four spring sheets 19. After the lithium battery shell passes through the four nozzles 18, it is placed on the placement table 7, and the mechanical arm and the clamp are retracted. Under the action of the four spring sheets 19, the four nozzles 18 and the four guide wheels 23 are driven to reset. Under the squeezing action of the four guide wheels 23, the position of the lithium battery shell is centered, located in the center between the four nozzles 18, so that the electrolyte can be The battery shell is evenly injected. The lithium battery shell placed on the placement table 7 first contacts the vacuum suction cup 10. After the position of the lithium battery shell is centered, the lithium battery shell is fixed by the vacuum suction cup 10. Before injecting electrolyte into the lithium battery shell, the placement table 7 is controlled to move upward once, and the second motor 11 is started to drive the half gear 12 to rotate. When the toothed side of the half gear 12 is close to the rack 6, the half gear 12 is engaged with the rack 6. As the half gear 12 rotates, the rack 6 is driven to move upward, so that the placement table 7 and the lithium battery shell move upward. After the rack 6 moves upward, the telescopic spring 14 is compressed. The placement table 7 moves upward and drives the four push rods 15 to move upward, so that the four piston plates 28 move upward. The piston plate 28 slides upward in the sleeve 27 to extrude the sleeve. The air in 27 is discharged along the hose 29. When the toothless side of the half gear 12 is in contact with the rack 6, the half gear 12 loses the meshing relationship with the rack 6. Under the action of the weight of the placing table 7 itself and the telescopic spring 14, the placing table 7 and the lithium battery shell fall downward rapidly. After the placing table 7 hits the rubber pad 8, it stops falling downward. The placing table 7 moves downward, driving the four push rods 15 to move downward, so that the four piston plates 28 move downward. Under the pulling action of the four piston plates 28, in conjunction with the four sets of one-way valves 26, the electrolyte in the first container 3 can be drawn into the four sleeves 27 along the four U-shaped tubes 24. After the placing table 7 is controlled to move upward once, the electrolyte starts to be injected into the lithium battery shell. Similarly, the placing table 7 is controlled to move upward, with The four push rods 15 are moved upward, so that the four piston plates 28 move upward in the four sleeves 27 respectively. With the cooperation of the four groups of one-way valves 26, the electrolyte in the four sleeves 27 is squeezed out along the four L-shaped tubes 25 respectively, and the squeezed electrolyte is transported to the four nozzles 18 along the four hoses 29 and sprayed out from the four nozzles 18. The electrolyte is injected through the four nozzles 18 at the same time, so that the electrolyte is injected into the lithium battery housing from four directions, thereby making it easier for the electrolyte to diffuse in the electrode material and the diaphragm in the lithium battery housing. The quantitative injection component can be used to inject the electrolyte in small amounts and multiple times, preventing the electrolyte from being difficult to penetrate downward due to the one-time injection of too much electrolyte and easily overflowing. Thus, after the second motor 11 is started,The nozzle 18 can intermittently and quantitatively inject electrolyte into the lithium battery shell, and drive the lithium battery shell to vibrate downward intermittently, so as to accelerate the speed of the electrolyte injected into the lithium battery shell to penetrate downward, and the vibration can prevent the electrolyte from forming bubbles in the electrode material and the diaphragm. When injecting the electrolyte, the first motor 9 is started to drive the vacuum suction cup 10 to rotate, so that the lithium battery shell rotates, thereby continuously adjusting the position of the electrolyte injection, so that the electrolyte injection is more uniform, and the centrifugal force is generated while the lithium battery shell rotates, so that the electrolyte entering the lithium battery shell can flow to the inner wall of the lithium battery shell, preventing the electrode material attached to the inner wall of the lithium battery shell. The electrolyte is difficult to be absorbed by the diaphragm, and liquid nitrogen is loaded into the second container 5. The connecting pipe 30 is sealed by the provided feeding pipe 31, which is located on the inner wall of the connecting pipe 30 to prevent the liquid nitrogen from leaking out of the connecting pipe 30. When the placing table 7 moves upward, the fixing frame 16 is driven to move upward, the arc frame 45 is moved upward, the collecting box 34 is driven to move upward, and the feeding pipe 31 is moved upward. After the two feeding ports 32 on the feeding pipe 31 are moved into the second container 5, the liquid nitrogen in the second container 5 enters the two feeding pipes 31 along the two feeding ports 32, and enters the collecting box 34 along the feeding trough 33. The liquid nitrogen entering the collecting box 34 is accumulated in the collecting box. At the hopper 35, the heating wire 36 is started to heat the liquid nitrogen in the collecting hopper 35 to accelerate the volatilization of the liquid nitrogen. At the same time, the third motor 42 is started to drive the stirring rod 43 and the stirring blade 44 to rotate, so that the liquid nitrogen is evenly heated. The volatilized nitrogen expands rapidly in the collecting box 34 and is ejected along a plurality of outlet pipes 37. The nitrogen entering the outlet pipe 37 is discharged along the outlet ports 38 on both sides and diffuses to both sides along the inclined surface of the diverter plate 39. The nitrogen flowing outside the diverter plate 39 can isolate the air near the nozzle 18, and the nitrogen flowing inside the diverter plate 39 can be concentrated and circulated downward to fill the top of the lithium battery shell, thereby ensuring To ensure that the electrolyte being injected and the electrolyte injected into the lithium battery shell will not react with the air, the blade 46 is driven to move up and down in the first container 3 through the up and down movement of the feed pipe 31. The electrolyte under the blade 46 is continuously rolled and gushed upward along the liquid outlet 47 through the reciprocating downward extrusion of the blade 46, thereby making the electrolyte in the first container 3 flow violently to prevent deposition. After the electrolyte injection is completed, the lithium battery shell is taken out by the mechanical arm in conjunction with the clamp. After the clamp is extended to the top of the lithium battery shell, it moves downward, and the four nozzles 18 are pressed downward again, so that the four guide wheels 23 are opened again, which is convenient for taking the lithium battery shell upward.

[0055] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0056] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0057] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multifunctional integrated production device for cylindrical lithium batteries, characterized in that: The invention comprises a base (1), the top of the base (1) being fixedly connected to a rubber pad (8), the top of the rubber pad (8) being provided with a placement table (7), the bottom of the base (1) being equidistantly fixedly connected to four supporting legs (48), the top of the base (1) being fixedly connected to a support frame (2), the top of the support frame (2) being fixedly connected to a first container (3), the inner wall of the first container (3) being equidistantly fixedly connected to four U-shaped tubes (24), the bottoms of the four U-shaped tubes (24) all passing through the first container ( 3) and is fixedly connected to an L-shaped tube (25), the top of the placement table (7) is equidistantly fixedly connected to four push rods (15), the outer walls of the four push rods (15) are fixedly connected to a fixing frame (16), the inner walls of the four fixing frames (16) are fixedly connected to a first rotating shaft (17), the outer walls of the four first rotating shafts (17) are rotatably connected to a nozzle (18), a hose (29) is connected between the L-shaped tube (25) and the nozzle (18), and a quantitative injection assembly is provided at the bottom of the L-shaped tube (25); The four spray heads (18) are all installed at an angle, the bottoms of the four spray heads (18) are all fixedly connected to connecting rods (20), one ends of the four connecting rods (20) are all fixedly connected to U-shaped frames (21), the inner walls of the four U-shaped frames (21) are all fixedly connected to second rotating shafts (22), the outer walls of the four second rotating shafts (22) are all rotatably connected to guide wheels (23), and a spring sheet (19) is fixedly connected between the spray heads (18) and the fixed frame (16); The top of the first container (3) is fixedly connected to a connecting frame (4), the top of the connecting frame (4) is fixedly connected to a second container (5), a connecting pipe (30) is fixedly connected between the second container (5) and the first container (3), and a material discharge assembly is provided on the inner wall of the connecting pipe (30); The material discharge assembly comprises a material discharge pipe (31), the material discharge pipe (31) is arranged inside the connecting pipe (30) and is slidably connected to the connecting pipe (30), the inner wall of the material discharge pipe (31) is provided with a material discharge trough (33), the outer wall of the material discharge pipe (31) is symmetrically provided with two material feed ports (32), both of which are communicated with the material discharge trough (33), the bottom of the material discharge pipe (31) passes through the first container (3) and is fixedly connected with a material collection box (34), the material collection box (34) is arranged as an air cylinder and a plurality of air outlet pipes (37) are fixedly connected to the bottom of the air discharge pipe (37) at equal intervals, the outer wall of the air outlet pipe (37) is symmetrically provided with two air outlets (38), the tops of the four fixed frames (16) are fixedly connected with arc frames (45), and the four arc frames (45) are fixedly connected with the material collection box (34).

2. A cylindrical lithium battery multifunctional integrated production device according to claim 1, characterized in that: The inner wall of the base (1) is slidably connected to a rack (6), the top of the rack (6) is fixedly connected to the placement table (7), the bottom of the base (1) is fixedly connected to a second motor (11), the output end of the second motor (11) is fixedly connected to a half gear (12), the half gear (12) is meshingly connected to the rack (6), the inner wall of the rack (6) is fixedly connected to a sliding shaft (13), the sliding shaft (13) is slidably connected to the base (1), the outer wall of the sliding shaft (13) is sleeved with a telescopic spring (14), the top of the telescopic spring (14) is fixedly connected to the base (1), and the bottom of the telescopic spring (14) is fixedly connected to the rack (6).

3. A cylindrical lithium battery multifunctional integrated production device according to claim 2, characterized in that: The quantitative injection assembly comprises a sleeve (27), wherein the sleeve (27) is fixedly mounted on the bottom of an L-shaped tube (25), the top of the push rod (15) extends into the interior of the sleeve (27) and is fixedly connected to a piston plate (28), wherein the piston plate (28) is slidably connected to the sleeve (27), and two one-way valves (26) are arranged on the inner wall of the L-shaped tube (25), wherein the two one-way valves (26) are respectively located on both sides of the sleeve (27), and both of the two one-way valves (26) are opened to the hose (29).

4. The multifunctional integrated production device for cylindrical lithium batteries according to claim 3, characterized in that: A diverter plate (39) is fixedly connected to the bottom of the air outlet pipe (37); the diverter plate (39) is arranged in a ring shape and its inner wall and outer wall are both arranged as continuous inclined surfaces.

5. The multifunctional integrated production device for cylindrical lithium batteries according to claim 4, characterized in that: The bottom of the collecting box (34) is fixedly connected to a collecting hopper (35), the collecting hopper (35) is configured as a hollow semicircular body, a heating wire (36) is arranged inside the collecting hopper (35), four mounting frames (40) are fixedly connected to the inner wall of the diverter plate (39) at equal intervals, a mounting plate (41) is fixedly connected between the four mounting frames (40), a third motor (42) is fixedly connected to the bottom of the mounting plate (41), an output end of the third motor (42) extends to the inside of the collecting hopper (35) and is fixedly connected to a stirring rod (43), a stirring blade (44) is fixedly connected to the bottom of the stirring rod (43), and the bottom of the stirring blade (44) is configured to be in an arc shape that fits the collecting hopper (35).

6. A cylindrical lithium battery multifunctional integrated production device according to claim 5, characterized in that: A first motor (9) is fixedly connected to the inner wall of the placement table (7), and an output end of the first motor (9) passes through the placement table (7) and is fixedly connected to a vacuum suction cup (10).

7. A cylindrical lithium battery multifunctional integrated production device according to claim 6, characterized in that: A blade (46) is fixedly connected to the outer wall of the discharge pipe (31). The blade (46) is located inside the first container (3). The blade (46) is inclined upward from the outside to the inside. A liquid outlet (47) is provided on the inner wall of the blade (46).

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