Adjustable core pressing mechanism for producing lithium battery

Abstract

The utility model is applicable to the technical field of lithium battery production, and provides an adjustable core pressing mechanism for producing lithium batteries, which comprises a barrel shell, a hopper, a mounting shaft, a stepping motor, a rotating roller, a support plate, an adjusting mechanism and a core pressing component, the adjusting mechanism comprises an adjusting screw rod, an internal thread bushing and a connecting rod, and the core pressing component comprises a support, a hydraulic rod and a pressing plate. By arranging the barrel shell, the hopper, the mounting shaft, the stepping motor, the rotating roller, the supporting plate, the adjusting mechanism and the core pressing assembly, the lithium battery in the containing groove is driven to move to the core pressing station, the stepping motor stops rotating, the core pressing assembly conducts core pressing operation, after core pressing is completed, the stepping motor is started again to rotate by a set angle, and the core pressing efficiency is improved. And the automation degree is high, the working efficiency is improved, all the movable rods are driven by the adjusting mechanism to synchronously move so as to adjust the position of the supporting plate in the containing groove, and therefore the depth of the containing groove is adjusted, and the lithium battery core pressing device is suitable for lithium batteries with different thicknesses.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery production technology, and in particular relates to an adjustable core pressing mechanism for producing lithium batteries. Background Technology

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the positive / negative electrode material and a non-aqueous electrolyte solution. They have a wide range of applications, such as e-cigarettes which use lithium batteries to provide energy. During the production process of e-cigarette lithium batteries, a core pressing device is required to compact the lithium battery cells.

[0003] A search revealed that Chinese utility model patent CN218448054U discloses a lithium battery core pressing device, belonging to the field of lithium batteries. It includes a fixed frame, with support legs fixedly connected to the bottom of the fixed frame. A height adjustment mechanism is provided at the bottom of the fixed frame, and guide mechanisms are provided on both sides of the bottom of the fixed frame. A fixing mechanism is provided at the bottom of the height adjustment mechanism, and a slidable stabilizing frame is connected to one side of the fixing mechanism. A pressure block is fixedly connected to the bottom of the stabilizing frame, and positioning sleeves are fixedly connected to the bottom of both sides of the stabilizing frame. Limit springs are installed inside the positioning sleeves, and telescopic rods are fixedly connected to the bottom of the limit springs.

[0004] In the aforementioned existing technologies, although core pressing operations can be performed, manual loading and unloading of materials one by one is required, which increases production costs and is relatively time-consuming, thus reducing processing efficiency. Summary of the Invention

[0005] This invention provides an adjustable core pressing mechanism for producing lithium batteries, aiming to solve the above-mentioned problems.

[0006] This utility model is implemented as follows: an adjustable pressing mechanism for producing lithium batteries, comprising:

[0007] A cylindrical shell, with a vertical hopper fixed at the top of the shell. The discharge port at the bottom of the hopper is connected to the inlet at the top of the shell. Multiple lithium batteries to be pressed can be stacked inside the hopper. The lower part of the shell is provided with a discharge port for discharging the lithium batteries after pressing.

[0008] A mounting shaft is coaxially disposed inside the cylindrical shell, and the mounting shaft is rotatably connected to both ends of the cylindrical shell. A stepper motor for driving the mounting shaft to rotate is fixed at one end of the cylindrical shell.

[0009] A rotating roller is coaxially fixed on a mounting shaft. The outer wall of the rotating roller is in contact with the inner wall of the cylinder shell. Multiple receiving grooves are circumferentially and equally spaced on the outer wall of the rotating roller for accommodating lithium batteries.

[0010] A support plate is provided in each receiving slot, preferably with the same shape and size as the receiving slot. A movable rod is fixed on the side wall of the support plate near the mounting shaft. The movable rod can move radially along the rotating roller. A guide groove for the movement of the movable rod can be opened in the rotating roller.

[0011] The adjustment mechanism is used to drive all the movable rods to move synchronously to adjust the position of the support plate in the receiving slot, thereby adjusting the depth of the receiving slot to accommodate lithium batteries of different thicknesses, ensuring that one lithium battery enters the receiving slot at a time for the pressing operation.

[0012] The pressing assembly, installed on the upper part of the casing and located at the pressing station, is used to press lithium batteries in the receiving tank.

[0013] Preferably, the adjustment mechanism includes:

[0014] Rotate the adjusting screw installed in the mounting shaft. The adjusting screw is coaxial with the mounting shaft and extends to the outside of the cylinder shell at one end away from the stepper motor.

[0015] An internal threaded sleeve is threaded onto an adjusting screw. Multiple connecting rods are circumferentially hinged at equal intervals on the internal threaded sleeve. Each connecting rod corresponds to a movable rod. The end of a connecting rod away from the internal threaded sleeve is hinged to the end of the corresponding movable rod away from the support plate.

[0016] Preferably, the core assembly includes:

[0017] A bracket fixed to the cylindrical shell;

[0018] A hydraulic rod fixed to a bracket, the extension and retraction direction of the hydraulic rod being radially along the rotating roller;

[0019] A pressure plate fixed to the telescopic end of a hydraulic rod, wherein the opposite surfaces of the pressure plate and the support plate have the same shape and dimensions.

[0020] Preferably, rubber pads are fixed on the opposite surfaces of the pressure plate and the support plate.

[0021] Preferably, a feeding conveyor belt is installed below the discharge port, and side plates are respectively provided on the front and rear sides of the upper surface of the feeding conveyor belt, and the side plates are fixedly connected to the cylinder shell.

[0022] Preferably, the adjustable pressing mechanism for producing lithium batteries further includes an ejection assembly for pushing the pressed lithium battery.

[0023] Preferably, the ejection assembly includes:

[0024] A top rod is inserted along the length of each movable rod, with a graphite body fixed at one end of the top rod away from the support plate, and the other end of the top rod can extend through the support plate into the receiving groove;

[0025] An electromagnet is fixed inside each movable rod. The electromagnet is located on the side of the graphite body away from the top rod. A tension spring is fixedly connected between the graphite body and the electromagnet.

[0026] Multiple second conductors are fixed circumferentially within the end wall of the rotating roller. The second conductors are electrically connected to the electromagnet via wires. A first conductor is fixed within the end wall of the cylinder near the outlet. The first conductor can be electrically connected to the second conductors in contact.

[0027] Compared with the prior art, the embodiments of this application have the following main advantages:

[0028] The adjustable pressing mechanism for lithium batteries provided by this utility model consists of a cylindrical shell, a hopper, a mounting shaft, a stepper motor, a rotating roller, a support plate, an adjustment mechanism, and a pressing assembly. It moves the lithium batteries in the receiving tank to the pressing station, stops the stepper motor, and the pressing assembly performs the pressing operation. After pressing is completed, the stepper motor restarts and rotates at a set angle, and the pressed lithium batteries are discharged from the outlet. This design features a high degree of automation and improved work efficiency. The adjustment mechanism drives all movable rods to move synchronously to adjust the position of the support plate in the receiving tank, thereby adjusting the depth of the receiving tank to accommodate lithium batteries of different thicknesses. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of an adjustable core pressing mechanism for producing lithium batteries provided by this utility model.

[0030] Figure 2 This is a schematic diagram of the installation of the adjustment mechanism in an adjustable core pressing mechanism for producing lithium batteries, provided by this utility model.

[0031] Figure 3 yes Figure 1 A magnified view of a portion of the image.

[0032] Figure reference numerals: 1. Cylinder shell; 2. Receiving groove; 3. Rubber pad; 4. Support plate; 5. Hopper; 6. Rotary roller; 7. Bracket; 8. Hydraulic rod; 9. Pressure plate; 10. Mounting shaft; 11. First conductor; 12. Side plate; 13. Feeding conveyor belt; 14. Internal threaded sleeve; 15. Connecting rod; 16. Movable rod; 17. Second conductor; 18. Stepper motor; 19. Adjusting screw; 20. Tension spring; 21. Electromagnet; 22. Top rod; 23. Graphite body. Detailed Implementation

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0034] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0035] This utility model embodiment provides an adjustable core pressing mechanism for producing lithium batteries, such as... Figures 1-3 As shown, it includes:

[0036] A cylindrical shell 1 has a vertical hopper 5 fixed to its top. The bottom outlet of the hopper 5 is connected to the top inlet of the cylindrical shell 1. Multiple lithium batteries to be pressed can be stacked inside the hopper 5. The lower part of the cylindrical shell 1 is provided with a discharge port for discharging the lithium batteries after pressing.

[0037] A mounting shaft 10 is coaxially disposed inside the cylindrical shell 1. The mounting shaft 10 is rotatably connected to both ends of the cylindrical shell 1, and can be rotatably connected by bearings. A stepper motor 18 for driving the mounting shaft 10 to rotate is fixed at one end of the cylindrical shell 1, and can be fixed by bolts. The output shaft of the stepper motor 18 can be fixedly connected to the mounting shaft 10 through a coupling.

[0038] A rotating roller 6 is coaxially fixed on the mounting shaft 10. The outer wall of the rotating roller 6 is in contact with the inner wall of the cylindrical shell 1. A plurality of receiving grooves 2 are circumferentially and equally spaced on the outer wall of the rotating roller 6 for accommodating lithium batteries.

[0039] A support plate 4 is provided in each receiving groove 2. Preferably, the support plate 4 has the same shape and size as the receiving groove 2. A movable rod 16 is fixed on the side wall of the support plate 4 near the mounting shaft 10. The movable rod 16 can move radially along the rotating roller 6. A guide groove for the movable rod 16 to move can be opened in the rotating roller 6.

[0040] The adjustment mechanism is used to drive all the movable rods 16 to move synchronously to adjust the position of the support plate 4 in the receiving groove 2, thereby adjusting the depth of the receiving groove 2 to accommodate lithium batteries of different thicknesses, ensuring that one lithium battery enters the receiving groove 2 at a time and then the core pressing operation is carried out.

[0041] The pressing assembly, installed on the upper part of the shell 1 and located at the pressing station, is used to press the lithium battery in the receiving tank 2.

[0042] During operation, the lithium batteries in the hopper 5 enter the receiving tank 2 under gravity. The stepper motor 18 drives the mounting shaft 10 to rotate at a set angle. The mounting shaft 10 drives the rotating roller 6 to rotate. The rotating roller 6 moves the lithium batteries in the receiving tank 2 to the pressing station. The stepper motor 18 stops rotating, and the pressing assembly performs the pressing operation. After the pressing is completed, the stepper motor 18 starts rotating again at a set angle. The pressed lithium batteries are discharged from the outlet. The system has a high degree of automation and improves work efficiency. The position of the support plate 4 in the receiving tank 2 can be adjusted by adjusting the mechanism to drive all the movable rods 16 to move synchronously, thereby adjusting the depth of the receiving tank 2 to accommodate lithium batteries of different thicknesses.

[0043] The adjustment mechanism includes:

[0044] The adjusting screw 19, which is rotatably installed in the mounting shaft 10, can be rotatably installed via a bearing. The adjusting screw 19 is coaxially arranged with the mounting shaft 10 and one end of the adjusting screw 19, which is away from the stepper motor 18, extends to the outside of the cylindrical shell 1.

[0045] An internal threaded sleeve 14 is threaded onto an adjusting screw 19. Multiple connecting rods 15 are circumferentially hinged to the internal threaded sleeve 14 at equal intervals. Each connecting rod 15 corresponds to a movable rod 16. The end of the connecting rod 15 away from the internal threaded sleeve 14 is hinged to the end of the corresponding movable rod 16 away from the support plate 4.

[0046] By rotating the adjusting screw 19, the adjusting screw 19 drives the internal threaded sleeve 14 to move. The internal threaded sleeve 14 drives the movable rod 16 to move through the connecting rod 15. The movable rod 16 drives the support plate 4 to move in the receiving groove 2, thereby adjusting the position of the support plate 4.

[0047] In this embodiment, the core assembly includes:

[0048] The bracket 7 fixed on the cylindrical shell 1 can be fixed by welding;

[0049] The hydraulic rod 8, which is fixed to the bracket 7, can be fixed by screws. The extension and retraction direction of the hydraulic rod 8 is along the radial direction of the rotating roller 6.

[0050] The pressure plate 9, which is fixed to the telescopic end of the hydraulic rod 8, can be fixed by screws. The opposite surfaces of the pressure plate 9 and the support plate 4 have the same shape and size.

[0051] During operation, the rotating roller 6 drives the receiving tank 2 and the lithium battery inside to the pressing station. Then, the hydraulic rod 8 extends and drives the pressing plate 9 to press the lithium battery to perform the pressing operation. After completion, the hydraulic rod 8 drives the pressing plate 9 to reset, and the rotating roller 6 drives the next lithium battery to the pressing station.

[0052] In specific implementation, rubber pads 3 are fixed on the opposite surfaces of the pressure plate 9 and the support plate 4, which can be fixed by adhesive to provide a certain degree of protection for the lithium battery.

[0053] Preferably, a feeding conveyor belt 13 is installed below the discharge port. Side plates 12 are respectively provided on the front and rear sides of the upper surface of the feeding conveyor belt 13. The side plates 12 are fixedly connected to the cylindrical shell 1 and can be fixed by welding. During operation, the lithium battery with the core pressed falls from the discharge port onto the feeding conveyor belt 13 and is conveyed to the subsequent process.

[0054] Furthermore, in order to ensure that the lithium battery is discharged from the receiving tank 2 through the outlet, the adjustable pressing mechanism for producing lithium batteries also includes an ejection component for pushing the pressed lithium battery.

[0055] Furthermore, the ejection component includes:

[0056] A top rod 22 is inserted along the length of each movable rod 16. A graphite body 23 is fixed at one end of the top rod 22 away from the support plate 4, and the other end of the top rod 22 can extend through the support plate 4 into the receiving groove 2.

[0057] An electromagnet 21 is fixed inside each movable rod 16. The electromagnet 21 is located on the side of the graphite body 23 away from the top rod 22. A tension spring 20 is fixedly connected between the graphite body 23 and the electromagnet 21. The two ends of the tension spring 20 can be hooked to the graphite body 23 and the electromagnet 21 respectively.

[0058] Multiple second conductors 17 are fixed circumferentially within the end wall of the rotating roller 6. The second conductors 17 are electrically connected to the electromagnet 21 via wires. A first conductor 11 is fixed within the end wall of the cylinder shell 1 near the outlet. The first conductor 11 can be electrically connected to the second conductors 17 in contact.

[0059] During operation, when the rotating roller 6 drives the lithium battery with the core pressed in the receiving tank 2 to the unloading station, the receiving tank 2 is connected to the discharge port. At this time, the first conductor 11 and the second conductor 17 are electrically connected in contact, and the electromagnet 21 is energized. Since graphite has antimagnetism, the electromagnet 21 generates a repulsive force on the graphite body 23. The repulsive force is much greater than the tension of the tension spring 20, which causes the push rod 22 to extend into the receiving tank 2 to push the lithium battery, which helps the lithium battery to be discharged.

[0060] In summary, this utility model provides an adjustable pressing mechanism for producing lithium batteries, the working principle of which is as follows:

[0061] The lithium batteries in the hopper 5 enter the receiving tank 2 under gravity. The stepper motor 18 drives the mounting shaft 10 to rotate at a set angle. The mounting shaft 10 drives the rotating roller 6 to rotate. The rotating roller 6 drives the lithium batteries in the receiving tank 2 to the core pressing station. The stepper motor 18 stops rotating. Then the hydraulic rod 8 extends. The hydraulic rod 8 drives the pressing plate 9 to press the lithium batteries to perform the core pressing operation. After the core pressing is completed, the stepper motor 18 starts rotating at a set angle again. The pressed lithium batteries are discharged from the discharge port.

[0062] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0063] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A production lithium battery adjustable core mechanism, characterized in that, The utility model relates to a lithium battery core pressing device, which comprises: a barrel shell, a vertical hopper fixed at the top of the barrel shell, a discharge outlet at the bottom of the hopper in communication with a feeding inlet at the top of the barrel shell, a plurality of lithium batteries to be pressed stacked in the hopper, and a discharge outlet at the lower part of the barrel shell for discharging the lithium batteries after core pressing; a mounting shaft coaxial with the barrel shell arranged in the barrel shell, the mounting shaft rotatably connected to both ends of the barrel shell, and a stepping motor fixed at one end of the barrel shell for driving the mounting shaft to rotate; a rotating roller coaxial with the mounting shaft fixed on the mounting shaft, the outer wall of the rotating roller in contact with the inner wall of the barrel shell, and a plurality of accommodating grooves equidistantly arranged on the outer wall of the rotating roller for accommodating the lithium batteries; a support plate arranged in each accommodating groove, the support plate having the same shape and size as the accommodating groove, a movable rod fixed on the side wall of the support plate close to the mounting shaft, and the movable rod capable of moving radially along the rotating roller and a guide groove provided in the rotating roller for the movement of the movable rod; an adjusting mechanism for driving all the movable rods to move synchronously to adjust the position of the support plate in the accommodating groove, thereby adjusting the depth of the accommodating groove to adapt to lithium batteries of different thicknesses and ensure that one lithium battery enters the accommodating groove each time and then undergoes core pressing; a core pressing assembly mounted on the upper part of the barrel shell at the core pressing position for performing core pressing on the lithium battery in the accommodating groove.

2. The production lithium battery adjustable pressure core mechanism of claim 1, wherein, The adjusting mechanism comprises: an adjusting screw rotatably arranged in the mounting shaft, the adjusting screw coaxial with the mounting shaft and extending to the outside of the barrel shell at the end away from the stepping motor; an internally threaded sleeve threadedly connected to the adjusting screw, a plurality of connecting rods equidistantly hingedly connected to the internally threaded sleeve, the connecting rods corresponding to the movable rods one by one, and the end of the connecting rod away from the internally threaded sleeve hingedly connected to the end of the corresponding movable rod away from the support plate.

3. The adjustable pressure core mechanism for lithium batteries of claim 1, wherein, The core pressing assembly comprises: a bracket fixed to the barrel shell; a hydraulic rod fixed to the bracket, the hydraulic rod capable of extending in the radial direction of the rotating roller; a pressing plate fixed to the extension end of the hydraulic rod, the pressing plate having the same shape and size as the opposite surface of the support plate.

4. The production lithium battery adjustable pressure core mechanism of claim 3, wherein, Rubber pads are respectively fixed to the opposite surfaces of the pressing plate and the support plate.

5. The adjustable pressure core mechanism for lithium batteries of claim 1, wherein, A discharge conveying belt is mounted below the discharge outlet, side plates are respectively arranged on the upper surface of the discharge conveying belt and at the front and rear sides, and the side plates are fixedly connected to the barrel shell.

6. The adjustable pressure core mechanism for lithium batteries of claim 1, wherein, The utility model further comprises an ejection assembly for pushing the lithium battery after core pressing.

7. The adjustable pressure core mechanism for lithium batteries of claim 6, wherein, The ejection assembly comprises: an ejecting rod arranged in each movable rod along the length direction of the movable rod, a graphite body fixed to the end of the ejecting rod away from the support plate, and the other end of the ejecting rod capable of extending to the accommodating groove through the support plate; an electromagnet fixed in each movable rod, the electromagnet located at the side of the graphite body away from the ejecting rod, and a tension spring fixedly connected between the graphite body and the electromagnet; a plurality of second conductive bodies equidistantly fixed to the end wall of the rotating roller, the second conductive bodies electrically connected to the electromagnet through wires, and a first conductive body fixed to the end wall of the barrel shell close to the discharge outlet, the first conductive body capable of being in contact with the second conductive bodies for electrical connection.

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