Lithium battery processing pole piece rolling equipment

Abstract

The utility model relates to the technical field of lithium battery processing, and particularly discloses lithium battery processing pole piece rolling equipment which comprises a mounting seat, a roller I, a roller II and a variable component, the distance between the first roller and the second roller is adjusted according to the thickness of the lithium battery, and when the distance is adjusted, the variable assembly is arranged to control the rotating speed of the first roller and the rotating speed of the second roller in real time according to the thickness of the lithium battery. The variable assembly adjusts the rotating speed of the first roller and the second roller in real time according to the thickness of the lithium battery pole piece, and it can be ensured that the pressure borne by the pole piece is more uniform in the rolling process; when a thicker pole piece is rolled, the rotating speed of the roller is reduced, so that non-uniform stress of the pole piece caused by too high rotating speed is avoided; when a thin pole piece is rolled, the rotating speed of the roller is increased, and the production efficiency is improved while the rolling quality is ensured; according to the dynamic adjusting mode, the rolling uniformity of the pole piece is remarkably improved, the defects of thickness deviation, cracks and the like of the pole piece caused by uneven pressure are reduced, and the universality and adaptability of equipment are improved.

Description

A lithium battery electrode rolling equipment Technical Field

[0001] This utility model relates to the field of lithium battery processing technology, specifically to a lithium battery electrode rolling equipment. Background Technology

[0002] Lithium-ion batteries have advantages such as high operating voltage, high specific energy, high energy density, high output power, long cycle life, and no environmental pollution. They are widely used not only in mobile communication devices, but also in electric vehicles, power tools, and other fields. Therefore, the performance requirements for lithium batteries are becoming increasingly stringent. In the manufacturing process of lithium batteries, the rolling of the electrode sheets is a crucial step, and the quality of the rolling of the electrode sheets directly affects the electrochemical performance, safety, and service life of the lithium battery.

[0003] Currently, some traditional rolling equipment uses a constant roller speed during the rolling process, which cannot be adjusted in real time according to the thickness of the electrode. This may lead to uneven stress on the electrode when rolling thicker electrodes due to excessively high speed, while excessively low speed may affect production efficiency when rolling thinner electrodes. To address this, we propose a lithium battery electrode rolling equipment. Summary of the Invention

[0004] The purpose of this utility model is to provide a lithium battery electrode rolling equipment to solve the problem mentioned in the background art that some existing traditional rolling equipment usually have a constant speed during the rolling process and cannot be adjusted in real time according to the thickness of the electrode. This may lead to uneven force on the electrode when rolling thicker electrodes due to excessive speed, while when rolling thinner electrodes, excessively slow speed may affect production efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lithium battery electrode rolling equipment, comprising a mounting base, a first roller and a second roller, and further comprising: a variable component;

[0006] The distance between roller one and roller two is adjusted according to the thickness of the lithium battery. When adjusting the distance, the variable component is set to control the rotation speed of roller one and roller two in real time according to the thickness of the lithium battery.

[0007] The mounting base contains a motor, and a lead screw is movably connected to the mounting base via bearings. The power drive end of the motor is connected to the lead screw.

[0008] The lead screw is externally connected to a movable seat, and a sliding plate is installed on one side of the movable seat. The inner sides of the mounting seat are respectively provided with a sliding groove and a connecting groove.

[0009] The slide plate is slidably connected inside the slide groove, and a slide block is slidably connected inside the connecting groove. A fixing seat is installed inside the mounting seat and at the bottom of the slide block.

[0010] Both the slide and the fixed base are equipped with motor 2. The power drive ends of the two motors 2 are connected to roller 1 and roller 2 respectively. A central processing unit is installed on the front side of the mounting base.

[0011] The mounting base has a variable component inside, which includes a connecting seat installed inside the mounting base and a connecting rod installed on the top of the movable base. The connecting seat has two symmetrical support plates inside, and the two support plates are equipped with terminals and metal rods.

[0012] The terminal block is equipped with a resistance wire, and the metal rod is equipped with a slider. A connecting plate is installed at one end of the slider, and the connecting plate is connected to the connecting rod.

[0013] This utility model has at least the following beneficial effects:

[0014] In use, this invention uses a variable component to adjust the rotation speed of roller one and roller two in real time according to the thickness of the lithium battery electrode sheet. This ensures that the pressure on the electrode sheet is more uniform during the rolling process. When rolling thicker electrode sheets, the roller speed is reduced to avoid uneven stress on the electrode sheet due to excessive speed. When rolling thinner electrode sheets, the roller speed is increased to improve production efficiency while ensuring rolling quality. This dynamic adjustment method significantly improves the uniformity of electrode sheet rolling, reduces defects such as electrode sheet thickness deviation and cracks caused by uneven pressure, and improves the versatility and adaptability of the equipment. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 is a semi-exploded view of the structure of this utility model;

[0017] Figure 3 is an internal structural diagram of this utility model;

[0018] Figure 4 is an internal view of the variable component of this utility model.

[0019] In the diagram: 1. Mounting base; 2. Roller 1; 3. Roller 2; 4. Motor 1; 5. Lead screw; 6. Moving base; 7. Slide plate; 8. Slide groove; 9. Slide seat; 10. Fixed base; 11. Motor 2; 12. Connecting groove; 13. Variable assembly; 14. Central processing unit; 131. Connecting base; 132. Support plate; 133. Terminal block; 134. Metal rod; 135. Resistance wire; 136. Sliding plate; 137. Connecting plate; 138. Connecting rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] Please refer to Figures 1 to 4. This utility model provides a technical solution: a lithium battery electrode rolling equipment, including a mounting base 1, a roller 1 2 and a roller 2 3, and also includes: a variable component 13;

[0023] The distance between roller 1 2 and roller 2 3 is adjusted according to the thickness of the lithium battery. When adjusting the distance, the variable component 13 controls the rotation speed of roller 1 2 and roller 2 3 in real time according to the thickness of the lithium battery.

[0024] Motor 4 is installed inside the mounting base 1. A lead screw 5 is movably connected inside the mounting base 1 via a bearing. The power drive end of motor 4 is connected to the lead screw 5. A movable seat 6 is connected to the outside of the lead screw 5. A sliding plate 7 is installed on one side of the outside of the movable seat 6. Slide grooves 8 and connecting grooves 12 are respectively opened on both sides of the inside of the mounting base 1. The sliding plate 7 is slidably connected inside the slide groove 8. A slide seat 9 is slidably connected inside the connecting groove 12. A fixed seat 10 is installed inside the mounting base 1 and at the bottom of the slide seat 9. Motor 11 is installed inside both the slide seat 9 and the fixed seat 10. The power drive ends of the two motors 11 are respectively connected to roller 2 and roller 3. A central processing unit 14 is installed on the front side of the mounting base 1. A variable component 13 is set inside the mounting base 1.

[0025] When the movable seat 6 drives the roller 2 3 to move, the slide 9 at the other end of the roller 2 3 moves at the same time, and the lithium battery electrode passes between the roller 1 2 and the roller 2 3 for processing; the slide plate 7 on one side of the movable seat 6 slides in the slide groove 8 to provide guidance for the movement of the movable seat 6 and ensure smooth movement.

[0026] The variable component 13 includes a connecting seat 131 installed inside the mounting base 1 and a connecting rod 138 installed on the top of the movable base 6. The connecting seat 131 has two symmetrical support plates 132 installed inside. The two support plates 132 are provided with a terminal 133 and a metal rod 134. A resistance wire 135 is provided outside the terminal 133. A slider 136 is provided outside the metal rod 134. A connecting plate 137 is installed at one end of the slider 136. The connecting plate 137 is connected to the connecting rod 138.

[0027] When adjusting according to the thickness of the lithium battery electrode, motor 4 starts, and its power drive end drives the lead screw 5 to rotate. The rotation of the lead screw 5 causes the moving seat 6 to move inside the mounting seat 1. As the moving seat 6 moves, the distance between roller 2 and roller 3 can be adjusted to meet the rolling requirements of lithium battery electrode sheets of different thicknesses.

[0028] During the movement of the movable seat 6, the connecting rod 138 installed on the top of the movable seat 6 also moves accordingly. The connecting rod 138 is connected to the slider 136 through the connecting plate 137. The slider 136 is located outside the metal rod 134 and can slide on the metal rod 134. At the same time, the slider 136 contacts the resistance wire 135 outside the terminal 133. When the movable seat 6 moves, the connecting rod 138 drives the slider 136 to slide on the resistance wire 135, thereby changing the resistance value of the circuit. The change in resistance value is detected by the central processing unit 14. The central processing unit 14 converts the change in resistance value into a control signal and sends it to the two motors 11 connected to roller 2 and roller 3. The two motors 11 adjust their speed according to the received control signal.

[0029] When the gap between roller 12 and roller 23 increases, the resistance increases when rolling thicker electrodes. The central processing unit 14 controls motor 211 to reduce its speed to avoid uneven force on the electrodes. Conversely, when the gap decreases, the resistance decreases when rolling thinner electrodes. The central processing unit 14 controls motor 211 to increase its speed to improve production efficiency.

[0030] The lithium battery electrode is located between roller 12 and roller 23. Two motors 211 drive roller 12 and roller 23 to rotate and roll the electrode. Since the rotation speed and spacing of the rollers are adjusted in real time according to the thickness of the electrode, it can ensure that the electrode is subjected to uniform and appropriate pressure, thereby improving the rolling quality and efficiency.

[0031] Example 2

[0032] In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that when the movable seat 6 moves, it not only adjusts the distance between the two rollers 2 and 3, but also the variable component 13 adjusts the rotation speed of rollers 2 and 3 according to the thickness of the lithium battery electrode.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lithium battery electrode rolling equipment, comprising a mounting base (1), a first roller (2) and a second roller (3), characterized in that: Also includes: Variable component (13); The distance between roller one (2) and roller two (3) is adjusted according to the thickness of the lithium battery. When adjusting the distance, the variable component (13) controls the rotation speed of roller one (2) and roller two (3) in real time according to the thickness of the lithium battery.

2. The lithium battery electrode rolling equipment according to claim 1, characterized in that: The mounting base (1) is equipped with a motor (4), and a lead screw (5) is movably connected to the mounting base (1) through a bearing. The power drive end of the motor (4) is connected to the lead screw (5).

3. The lithium battery electrode rolling equipment according to claim 2, characterized in that: The lead screw (5) is externally connected to a movable seat (6), and a sliding plate (7) is installed on one side of the movable seat (6). The mounting base (1) has a sliding groove (8) and a connecting groove (12) respectively on its internal two sides.

4. The lithium battery electrode rolling equipment according to claim 3, characterized in that: The slide plate (7) is slidably connected inside the slide groove (8), and the slide seat (9) is slidably connected inside the connecting groove (12). A fixing seat (10) is installed inside the mounting seat (1) and at the bottom of the slide seat (9).

5. The lithium battery electrode rolling equipment according to claim 4, characterized in that: Both the slide (9) and the fixed seat (10) are equipped with motors (11). The power drive ends of the two motors (11) are connected to rollers (2) and (3) respectively. The central processing unit (14) is installed on the front side of the mounting seat (1).

6. The lithium battery electrode rolling equipment according to claim 3, characterized in that: The mounting base (1) is provided with a variable component (13). The variable component (13) includes a connecting seat (131) installed inside the mounting base (1) and a connecting rod (138) installed on the top of the movable base (6). The connecting seat (131) is provided with two symmetrical support plates (132). The two support plates (132) are provided with a terminal block (133) and a metal rod (134).

7. The lithium battery electrode rolling equipment according to claim 6, characterized in that: A resistance wire (135) is provided on the outside of the terminal (133), and a slider (136) is provided on the outside of the metal rod (134). A connecting plate (137) is installed at one end of the slider (136), and the connecting plate (137) is connected to the connecting rod (138).

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