Deviation correction apparatus and battery production device

Abstract

The present disclosure relates to a deviation correction apparatus and a battery production device. The deviation correction apparatus comprises: a first deviation correction assembly and a second deviation correction assembly. The first deviation correction assembly comprises a first moving seat, a first deviation correction roller, and a first adjustment driving member, wherein the first deviation correction roller is arranged on the first moving seat, and the first adjustment driving member is configured to drive the first moving seat to drive the first deviation correction roller to move in a first direction. The second deviation correction assembly comprises a second moving seat, a second deviation correction roller, and a second adjustment driving member, wherein the second deviation correction roller is arranged on the second moving seat, and the second adjustment driving member is configured to drive the second moving seat to drive the second deviation correction roller to move close to or away from the first deviation correction roller in the first direction. The deviation correction apparatus provided by the present disclosure can improve the deviation correction efficiency.

Description

Correction devices and battery production equipment

[0001] This disclosure claims priority to Chinese Patent Application No. 202520122349.6, filed on January 17, 2025, entitled "Correction Device and Battery Production Equipment", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of battery manufacturing technology, and more specifically, to a correction device and battery manufacturing equipment. Background Technology

[0003] In the battery production process, it is usually necessary to combine the electrode and the separator into one unit and then roll them up. Before combining, in order to ensure the accuracy of the position of the electrode and the separator, it is usually necessary to set up a correction device to correct the position of the electrode.

[0004] In related technologies, when feeding the electrode sheet between the two straightening rollers in the straightening device, there is a risk that the electrode sheet head may collide with the straightening roller, or that the electrode sheet support plate may interfere with the straightening roller, which may lead to the failure of the electrode sheet to be fed into the straightening device and affect the overall production efficiency of the battery. Summary of the Invention

[0005] One objective of this disclosure is to provide a new technical solution for a correction device and battery production equipment.

[0006] According to a first aspect of this disclosure, a correction device is provided, comprising:

[0007] A first correction assembly, the first correction assembly includes a first movable seat, a first correction roller and a first adjustment drive, the first correction roller is disposed on the first movable seat, and the first adjustment drive is configured to drive the first movable seat to move the first correction roller along a first direction.

[0008] The second correction assembly includes a second movable seat, a second correction roller, and a second adjustment drive. The second correction roller is disposed on the second movable seat, and the second adjustment drive is configured to drive the second movable seat to move the second correction roller closer to or further away from the first correction roller along the first direction.

[0009] Optionally, the first correction assembly further includes a first rotating shaft and a first rotation drive, the first rotating shaft being rotatably mounted on the first movable seat, and the first rotation drive being configured to drive the first rotating shaft to rotate about its axis; and / or,

[0010] The second correction assembly further includes a second rotating shaft and a second rotation drive member. The second rotating shaft is rotatably disposed on the second movable seat, and the second rotation drive member is configured to drive the second rotating shaft to rotate about its axis.

[0011] Optionally, the first correction component further includes a first one-way bearing, and the second correction component further includes a second one-way bearing;

[0012] The first straightening roller is mounted on the first rotating shaft via the first one-way bearing, and the second straightening roller is mounted on the second rotating shaft via the second one-way bearing, so that the first straightening roller and the second straightening roller can rotate in one direction.

[0013] Optionally, the first correction assembly further includes a first connecting seat and a first transmission member, wherein the first connecting seat is disposed on the first movable seat, the first rotation drive member is mounted on the first connecting seat and is connected to the first rotating shaft via the first transmission member; and / or,

[0014] The second correction assembly further includes a second connecting seat and a second transmission component. The second connecting seat is disposed on the second movable seat, and the second rotation drive component is mounted on the second connecting seat and is connected to the second rotating shaft via the second transmission component.

[0015] Optionally, it also includes:

[0016] Support, correction seat and third adjustment drive component;

[0017] The first movable seat and the second movable seat are respectively movably disposed on the correction seat along the first direction, and the correction seat, the first correction component and the second correction component are respectively movably disposed on the support along the second direction;

[0018] The third adjustment drive is disposed on the support and configured to drive the correction seat to reciprocate along the second direction, which is consistent with the axial direction of the first correction roller or the second correction roller.

[0019] Optionally, the first movable seat and the second movable seat are respectively movably mounted on the correction seat along the first direction via a linear guide slider mechanism, and the correction seat is movably mounted on the support along the second direction via a linear guide assembly.

[0020] Optionally, the first adjusting drive and / or the second adjusting drive are respectively employed as an electric cylinder or a motor lead screw and nut transmission mechanism.

[0021] Optionally, it also includes:

[0022] A first sensor and a second sensor, both mounted on the support, are used to detect the position of the component to be corrected in the second direction.

[0023] Optionally, it also includes:

[0024] The third sensor and the sensing plate are disposed on the support and the sensing plate is disposed on the correction seat. The third sensor and the sensing plate are used to limit the movement range of the correction seat in the second direction.

[0025] According to a second aspect of this disclosure, a battery production apparatus is provided, comprising: a composite device and a bias correction device as described in the first aspect, the bias correction device being used to bias electrode sheets and to convey the electrode sheets to the composite device, the composite device being used to composite a separator and electrode sheets.

[0026] Optionally, it further includes: a first diaphragm unwinding mechanism and a second diaphragm unwinding mechanism, the first diaphragm unwinding mechanism being used to feed the first diaphragm to the composite device, the second diaphragm unwinding mechanism being used to feed the second diaphragm to the composite device, the correction device being able to feed the electrode between the first diaphragm and the second diaphragm, and the composite device being used to sequentially composite the first diaphragm, the electrode, and the second diaphragm into one unit.

[0027] Optionally, it further includes: a winding device for winding the first diaphragm, the electrode sheet and the second diaphragm that are composite together.

[0028] One technical advantage of this disclosure is that by setting the first and second straightening rollers on the first and second movable seats respectively, and by having the first and second adjusting drive members drive the first and second movable seats respectively to move the first and second straightening rollers closer to or further away from each other, the battery production efficiency is improved by moving the first and second straightening rollers further away from each other when inserting the electrode sheet between the first and second straightening rollers.

[0029] Other features and advantages of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0030] The accompanying drawings, which form part of this specification, illustrate embodiments of this disclosure and, together with the specification, serve to explain the principles of this disclosure.

[0031] Figure 1 is one of the structural schematic diagrams of a correction device provided in this disclosure.

[0032] Figure 2 is a second schematic diagram of the structure of a correction device provided in this disclosure.

[0033] Figure 3 is one of the schematic diagrams of the electrode sheet being fed into the correction device provided in this disclosure.

[0034] Figure 4 is a second schematic diagram of the electrode sheet being fed into the correction device provided in this disclosure.

[0035] Figure 5 is a schematic diagram of the electrode sheet provided in this disclosure being fed into the composite device.

[0036] Explanation of reference numerals in the attached drawings: 1. First rotating shaft; 2. First movable seat; 3. First correcting roller; 4. First adjusting drive component; 5. First transmission component; 6. First rotation drive component; 7. First connecting seat; 8. Second connecting seat; 9. Second rotating shaft; 10. Second rotation drive component; 11. Second transmission component; 12. Second correcting roller; 13. Second adjusting drive component; 14. Second movable seat; 15. Support; 16. Correcting seat; 17. Third adjusting drive component; 18. Sensing plate; 19. Third sensor; 20. Linear guide slider mechanism; 21. Connecting plate; 22. First sensor; 23. Second sensor; 24. Slider; 25. Linear guide; 26. First linear guide assembly; 27. Second linear guide assembly; 28. Electrode; 29. ​​First diaphragm; 30. Second diaphragm; 100, Insert assembly; 200, Correction device; 300, Composite device; 400, First diaphragm unwinding mechanism; 500, Second diaphragm unwinding mechanism. Detailed Implementation

[0037] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present disclosure.

[0038] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this disclosure or its application or use.

[0039] Technologies and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such technologies and equipment should be considered part of the specification.

[0040] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0041] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0042] As shown in Figures 1 and 2, according to a first aspect of this disclosure, a web guiding device 200 is provided, comprising: a first web guiding component and a second web guiding component; the first web guiding component includes a first movable seat 2, a first web guiding roller 3 and a first adjusting drive 4, the first web guiding roller 3 being disposed on the first movable seat 2, and the first adjusting drive 4 being configured to drive the first movable seat 2 to reciprocate the first web guiding roller 3 along a first direction; the second web guiding component includes a second movable seat 14, a second web guiding roller 12 and a second adjusting drive 13, the second web guiding roller 12 being disposed on the second movable seat 14, and the second adjusting drive 13 being configured to drive the second movable seat 14 to move the second web guiding roller 12 closer to or further away from the first web guiding roller 3 along the first direction, the first web guiding roller 3 being parallel to the second web guiding roller 12.

[0043] Specifically, the correction device 200 is used to adjust the part to be corrected (hereinafter referred to as electrode 28) inserted between the first correction roller 3 and the second correction roller 12 to a suitable position so as to facilitate the completion of the next process, such as facilitating the alignment and bonding of electrode 28 with the diaphragm. In this embodiment, by setting a first correction component, the first adjustment drive 4 can drive the first moving seat 2 to reciprocate along the first direction, thereby causing the first correction roller 3 set on the first moving seat 2 to reciprocate along the first direction. The setting of the second correction component allows the second adjustment drive 13 to drive the second moving seat 14 to reciprocate along the first direction, so that the second correction roller 12 set on the second moving seat 14 can move closer to or away from the first correction roller 3 along the first direction. Thus, in the actual correction process, the first adjustment drive 4 and the second adjustment drive 13 can drive the first moving seat 2 and the second moving seat 14 respectively to make the first correction roller 3 and the second correction roller 12 move towards each other or away from each other, so as to achieve the purpose of the first correction roller 3 and the second correction roller 12 clamping the electrode sheet 28.

[0044] In the aforementioned correction process, taking electrode 28 as an example, based on the ability of the first correction roller 3 and the second correction roller 12 to move in opposite directions and relative to each other, when the external equipment transports electrode 28 to the correction device 200, the first correction roller 3 and the second correction roller 12 can be moved away from each other, leaving space for the external equipment to insert electrode 28 between them. This avoids the risk of the electrode 28 head colliding with the first correction roller 3 or the second correction roller 12, improving the battery production yield. On the other hand, it also avoids interference between the external equipment and the first correction roller 3 or the second correction roller 12, improving the efficiency of the entire production process. After electrode 28 is delivered between the first correction roller 3 or the second correction roller 12, the first adjustment drive 4 and the second adjustment drive 13 can again drive the first moving seat 2 and the second moving seat 14 to move towards each other, so that the first correction roller 3 and the second correction roller 12 move closer together to clamp electrode 28, thus enabling the next process.

[0045] As can be seen from the above correction process, the correction device 200 provided in this disclosure is based on the fact that the first correction roller 3 and the second correction roller 12 can move in opposite directions or towards each other, which makes it convenient for external equipment to send the electrode 28 to the first correction roller 3 and the second correction roller 12. This avoids the problem of collision or interference between the electrode 28 or external equipment and the correction roller, improves the production efficiency and product yield of the equipment, and the device is simple and reduces the production cost.

[0046] The first adjusting drive 4 and the second adjusting drive 13 can control the position of the electrode 28 in the first direction through the first moving seat 2 and the second moving seat 14, so that the electrode 28 can be in a suitable position in the first direction before being sent to the next device. The first adjusting drive 4 and the second adjusting drive 13 can be driven by servo motors, electric cylinders or pneumatic cylinders, etc. The first moving seat 2 and the second moving seat 14 can be structural components that facilitate the installation and connection of the first correcting roller 3, the second correcting roller 12 and the first adjusting drive 4 and the second adjusting drive 13. The parallelism of the first correcting roller 3 and the second correcting roller 12 also ensures the reliability and uniformity of clamping the electrode 28, further improving the correction effect of the correction device 200.

[0047] Optionally, as shown in Figures 1 and 2, the first correction assembly further includes a first rotating shaft 1 and a first rotation drive 6. The first rotating shaft 1 is rotatably mounted on the first movable seat 2, and the first rotation drive 6 is configured to drive the first rotating shaft 1 to rotate about its axis. And / or, the second correction assembly further includes a second rotating shaft 9 and a second rotation drive 10. The second rotating shaft 9 is rotatably mounted on the second movable seat 14, and the second rotation drive 10 is configured to drive the second rotating shaft 9 to rotate about its axis. The first rotating shaft 1 and the second rotating shaft 9 are parallel.

[0048] Specifically, in this embodiment, the first rotating shaft 1 is driven to rotate by the first rotating drive member, and / or the second rotating shaft 9 is driven to rotate by the second rotating drive member. This enables the first and second straightening rollers 3 and 12, which are mounted on the first and second rotating shafts 1 and 9, to drive the clamped electrode 28 downstream of the straightening device 200 while preventing the electrode 28 from slipping, thus improving the straightening efficiency and accuracy of the straightening device 200. Downstream of the straightening device 200 typically refers to the direction in which the electrode 28 is conveyed out of the straightening device 200. The first and second drive members can control the rotation direction of the first and second rotating shafts 1 and 9 to ensure that the electrode 28 is conveyed to the appropriate position.

[0049] For example, in the structure shown in Figure 1, the first rotary drive member can drive the first rotating shaft 1 to rotate clockwise, and the second rotary drive member can drive the second rotating shaft 9 to rotate counterclockwise, thereby enabling the electrode 28 to be quickly conveyed to the area below the correction device 200. The parallel relationship between the first rotating shaft 1 and the second rotating shaft 9 also facilitates the assembly and position confirmation of the first correction roller 3 and the second correction roller 12.

[0050] Optionally, as shown in Figure 1, the first correction assembly further includes a first one-way bearing, and the second correction assembly further includes a second one-way bearing; the first correction roller 3 is mounted on the first rotating shaft 1 via the first one-way bearing, and the second correction roller 12 is mounted on the second rotating shaft 9 via the second one-way bearing, so that the first correction roller 3 and the second correction roller 12 can rotate in one direction.

[0051] Specifically, in practical applications, the electrode 28 usually needs to be oriented and conveyed downstream of the correction device 200. The use of the first one-way bearing and the second one-way bearing can ensure that the first rotating shaft 1 and the second rotating shaft 9 can drive the first correction roller 3 and the second correction roller 12 to rotate in opposite directions, avoiding the problem of the first correction roller 3 and the second correction roller 12 rotating in opposite directions or the tension of the electrode 28 causing the electrode 28 to move upstream, thus improving the reliability of the correction device 200.

[0052] Optionally, as shown in Figure 1, the first alignment component further includes a first connecting seat 7 and a first transmission member 5. The first connecting seat 7 is disposed on the first movable seat 2, and the first rotation drive member 6 is mounted on the first connecting seat 7 and is connected to the first rotating shaft 1 via the first transmission member 5. And / or the second alignment component further includes a second connecting seat 8 and a second transmission member 11. The second connecting seat 8 is disposed on the second movable seat 14, and the second rotation drive member 10 is mounted on the second connecting seat 8 and is connected to the second rotating shaft 9 via the second transmission member 11.

[0053] Specifically, in this embodiment, the first rotation drive member 6 is connected to the first movable seat 2 via the first connecting seat 7, so that the first rotating shaft 1 can be driven by the first transmission member 5, and / or the second transfer drive member is connected to the second movable seat 14 via the second connecting seat 8, so that the second rotating shaft 9 can be driven by the second transmission member 11, thereby realizing the rotation of the first rotating shaft 1 and the second rotating shaft 9. The first connecting seat 7 and the second connecting seat 8 facilitate the installation of each rotation drive member and transmission member. Both the first transmission member 5 and the second transmission member 11 can use belts or gears for transmission; this disclosure does not impose any limitations on this.

[0054] Optionally, as shown in Figures 1 and 2, the correction device 200 further includes: a support 15, a correction seat 16, and a third adjustment drive 17; the first movable seat 2 and the second movable seat 14 are respectively movably disposed on the correction seat 16 along a first direction, and the correction seat 16, the first correction assembly, and the second correction assembly are respectively movably disposed on the support 15 along a second direction; the third adjustment drive 17 is disposed on the support 15 and is configured to drive the correction seat 16 to reciprocate along the second direction, the second direction being consistent with the axial direction of the first correction roller 3 or the second correction roller 12.

[0055] Specifically, in this embodiment, the first movable seat 2 and the second movable seat 14 are movably mounted on the correction seat 16 along the first direction, so that the first adjusting drive member 4 and the second adjusting drive member 13 can move the first movable seat 2 and the second movable seat 14 in the first direction to achieve the purpose of the first correction roller 3 and the second correction roller 12 moving towards each other or away from each other. The third adjusting drive member 17 is mounted on the support 15, and the first correction assembly and the second correction assembly are movably mounted on the support 15 along the second direction, so that the third adjusting drive member 17 can move the correction seat 16 in the second direction to achieve the movement of the electrode 28 in its width direction (i.e., the second direction), and perform correction on the electrode 28 in another direction, thereby improving the reliability of the correction of the electrode 28. Among them, the first correction roller 3 and the second correction roller 12 are parallel, and their axis is the second direction, which is the width direction of the electrode 28.

[0056] Optionally, as shown in Figures 1 and 2, the first movable seat 2 and the second movable seat 14 are respectively movably mounted on the correction seat 16 in the first direction via the linear guide slider mechanism 20, and the correction seat 16 is movably mounted on the support 15 in the second direction via the linear guide assembly.

[0057] Specifically, in this embodiment, the first movable seat 2 and the second movable seat 14 are respectively movably mounted on the correction seat 16 along the first direction via the linear guide slider mechanism 20, which can guide the movement trajectory of the first correction roller 3 and the second correction roller 12 in the first direction, thereby improving the reliability of the correction of the electrode sheet 28 in the first direction. The linear guide structure in the linear guide slider mechanism 20 can extend along the first direction and be mounted on the correction seat 16. The first movable seat 2 and the second movable seat 14 are respectively provided with slider structures at corresponding positions to achieve movement along the first direction.

[0058] Furthermore, the alignment seat 16 is movably mounted on the support 15 in the second direction via a linear guide assembly, ensuring reliable guidance for the movement of the first and second alignment components in the second direction. In practical applications, the reliability of the movable connection between the alignment seat 16 and the support 15 can be achieved by respectively arranging a first linear guide assembly 26 and a second linear guide assembly 27 on both sides of the alignment seat 16. The first linear guide assembly 26 and the second linear guide assembly 27 can each be equipped with a linear guide 25 and a slider 24, with the linear guide 25 connected to the support 15 and the slider 24 connected to the alignment seat 16, thus enabling movable assembly.

[0059] Optionally, as shown in Figures 1 and 2, the first adjusting drive 4 and / or the second adjusting drive 13 respectively adopt a motor lead screw and nut transmission mechanism or an electric cylinder.

[0060] Specifically, in practical applications, the correction of electrode 28 requires high precision. In this embodiment, the first adjustment drive 4 and / or the second adjustment drive 13 respectively adopt a motor screw nut transmission mechanism or an electric cylinder. Compared with the cylinder solution, it has advantages such as controllable movement stroke and fast response speed, which can improve the correction accuracy and correction efficiency of the correction device 200.

[0061] Optionally, as shown in Figure 2, the correction device 200 further includes a first sensor 22 and a second sensor 23, both of which are mounted on the support 15 and are used to detect the position of the part to be corrected in the second direction.

[0062] Specifically, in this embodiment, the first sensor 22 and the second sensor 23 can detect the position of the electrode 28 in the second direction in real time. When its position deviates, the third adjustment drive 17 can drive the first correction component and the second correction component to move in the second direction, thereby realizing the correction of the electrode 28 in its width direction, improving the automation level and correction efficiency of the correction device 200, as well as the reliability of the correction.

[0063] In one embodiment, the first sensor 22 can be a photoelectric transmitter, and the second sensor 23 can be a photoelectric receiver. The photoelectric transmitter and receiver are respectively positioned downstream of the first and second correction rollers 3 and 12. When the electrode 28 deviates in the second direction, it blocks the light beam emitted by the photoelectric transmitter. The third adjustment drive 17 then drives the correction seat 16 to move in the second direction until the photoelectric receiver can receive the light beam emitted by the photoelectric transmitter. In this embodiment, the electrode 28 is corrected in the second direction when the photoelectric receiver is just able to receive the light beam emitted by the photoelectric transmitter. The photoelectric transmitter and receiver can be fixed to the support 15 via a connecting plate 21. Of course, the first sensor 22 and the second sensor 23 can also be other types of sensors to achieve structural adaptation.

[0064] Optionally, as shown in FIG1, the correction device 200 further includes a third sensor 19 and a sensing plate 18. The third sensor 19 is disposed on the support 15, and the sensing plate 18 is disposed on the correction seat 16. The third sensor 19 and the sensing plate 18 are used to limit the movement range of the correction seat 16 in the second direction.

[0065] Specifically, in this embodiment, the third sensor 19 and the sensing plate 18 can limit the movement range of the correction seat 16 along the second direction. As shown in FIG1, when the third adjustment drive 17 drives the correction seat 16 to move in the second direction, the third sensor 19 can limit the movement range of the sensing plate 18 in its structure and thus limit the movement range of the electrode 28 in the second direction, thereby further improving the accuracy and reliability of the correction of the electrode 28.

[0066] As shown in Figures 3 to 5, according to a second aspect of this disclosure, a battery manufacturing apparatus is provided, comprising: a composite device 300 and a bias correction device 200 of the first aspect, the bias correction device 200 being used to bias correction of an electrode 28 and to transfer the electrode 28 to the composite device 300, the composite device 300 being used to composite a separator and an electrode 28.

[0067] Specifically, in this embodiment, after being corrected by the correction device 200, the electrode 28 can enter the composite device 300 and be integrated with the separator in the strip structure, facilitating subsequent processes. Based on the correction device 200 provided in the first aspect, collisions can be avoided when the electrode 28 is inserted into the first correction roller 3 and the second correction roller 12, and interference can be avoided when the electrode insertion assembly 100 delivers the electrode 28 to the correction device 200, thus improving the overall production efficiency and product yield of the battery production equipment.

[0068] Optionally, as shown in Figures 3 to 5, the battery production equipment further includes: a first separator unwinding mechanism 400 and a second separator unwinding mechanism 500. The first separator unwinding mechanism 400 is used to feed the first separator 29 to the composite device 300, the second separator unwinding mechanism 500 is used to feed the second separator 30 to the composite device 300, the correction device 200 can feed the electrode 28 between the first separator 29 and the second separator 30, and the composite device 300 is used to sequentially composite the first separator 29, the electrode 28, and the second separator 30 into one unit.

[0069] Specifically, in this embodiment, the first diaphragm unwinding mechanism 400 and the second diaphragm unwinding mechanism 500 are used to feed the first diaphragm 29 and the second diaphragm 30 into the composite device 300, while the correction device 200 feeds the electrode 28 between the first diaphragm 29 and the second diaphragm 30. Thus, the first diaphragm 29, the electrode 28 and the second diaphragm 30 can be composited into a single strip by the thermal composite action of the composite device 300, which facilitates the next step of the process.

[0070] Optionally, the battery production equipment also includes a winding device for winding the first separator 29, the electrode 28, and the second separator 30, which are composite together.

[0071] Specifically, in this embodiment, the composite strip can be wound up by a winding device to facilitate the next process of the strip. The setting of the correction device 200 can also improve the winding efficiency of the winding device, thereby improving the overall battery production efficiency.

[0072] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0073] While specific embodiments of this disclosure have been described in detail by way of example, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this disclosure. The scope of this disclosure is defined by the appended claims.

Claims

1. A correction device, characterized in that, include: The first correction assembly includes a first movable seat (2), a first correction roller (3), and a first adjustment drive (4). The first correction roller (3) is disposed on the first movable seat (2), and the first adjustment drive (4) is configured to drive the first movable seat (2) to move the first correction roller (3) along a first direction. The second correction assembly includes a second movable seat (14), a second correction roller (12), and a second adjustment drive (13). The second correction roller (12) is disposed on the second movable seat (14), and the second adjustment drive (13) is configured to drive the second movable seat (14) to move the second correction roller (12) closer to or further away from the first correction roller (3) along the first direction.

2. The correction device according to claim 1, characterized in that, The first correction assembly further includes a first rotating shaft (1) and a first rotation drive (6), the first rotating shaft (1) being rotatably mounted on the first movable seat (2), and the first rotation drive (6) being configured to drive the first rotating shaft (1) to rotate about its axis; and / or, The second correction assembly further includes a second rotating shaft (9) and a second rotation drive (10), the second rotating shaft (9) being rotatably disposed on the second movable seat (14), and the second rotation drive (10) being configured to drive the second rotating shaft (9) to rotate about its axis.

3. The correction device according to claim 2, characterized in that, The first correction component further includes a first one-way bearing, and the second correction component further includes a second one-way bearing; The first correction roller (3) is mounted on the first rotating shaft (1) via the first one-way bearing, and the second correction roller (12) is mounted on the second rotating shaft (9) via the second one-way bearing, so that the first correction roller (3) and the second correction roller (12) can rotate in one direction.

4. The correction device according to claim 2 or 3, characterized in that, The first correction assembly further includes a first connecting seat (7) and a first transmission member (5). The first connecting seat (7) is disposed on the first movable seat (2), and the first rotation drive member (6) is mounted on the first connecting seat (7) and is connected to the first rotating shaft (1) via the first transmission member (5); and / or, The second correction assembly also includes a second connecting seat (8) and a second transmission component (11). The second connecting seat (8) is disposed on the second movable seat (14), and the second rotation drive component (10) is mounted on the second connecting seat (8) and is connected to the second rotating shaft (9) through the second transmission component (11).

5. The correction device according to any one of claims 1 to 4, characterized in that, Also includes: Support (15), correction seat (16), and third adjustment drive (17); The first movable seat (2) and the second movable seat (14) are respectively movably disposed on the correction seat (16) along the first direction, and the correction seat (16), the first correction component and the second correction component are respectively movably disposed on the support (15) along the second direction; The third adjustment drive (17) is disposed on the support (15) and is configured to drive the correction seat (16) to reciprocate along the second direction, which is consistent with the axial direction of the first correction roller (3) or the second correction roller (12).

6. The correction device according to claim 5, characterized in that, The first movable seat (2) and the second movable seat (14) are respectively movably mounted on the correction seat (16) along the first direction via the linear guide slider mechanism (20), and the correction seat (16) is movably mounted on the support (15) along the second direction via the linear guide assembly.

7. The correction device according to any one of claims 1 to 6, characterized in that, The first adjustment drive (4) and / or the second adjustment drive (13) are respectively equipped with an electric cylinder or a motor lead screw and nut transmission mechanism.

8. The correction device according to any one of claims 5 to 7, characterized in that, Also includes: The first sensor (22) and the second sensor (23) are both disposed on the support (15) and are used to detect the position of the part to be corrected in the second direction.

9. The correction device according to any one of claims 5 to 7, characterized in that, Also includes: The third sensor (19) and the sensing plate (18) are disposed on the support (15) and the sensing plate (18) are disposed on the correction seat (16). The third sensor (19) and the sensing plate (18) are used to limit the movement range of the correction seat (16) in the second direction.

10. A battery manufacturing apparatus, characterized in that, include: The composite device (300) and the correction device (200) according to any one of claims 1-9, the correction device (200) being used to correct the polarity of the electrode (28) and to transfer the electrode (28) to the composite device (300), the composite device (300) being used to composite the diaphragm and the electrode (28).

11. The battery production equipment according to claim 10, characterized in that, Also includes: The first diaphragm unwinding mechanism (400) and the second diaphragm unwinding mechanism (500) are used to feed the first diaphragm (29) to the composite device (300), and the second diaphragm unwinding mechanism (500) is used to feed the second diaphragm (30) to the composite device (300). The correction device (200) can feed the electrode (28) between the first diaphragm (29) and the second diaphragm (30). The composite device (300) is used to sequentially composite the first diaphragm (29), the electrode (28) and the second diaphragm (30) into one unit.

12. The battery production equipment according to claim 11, characterized in that, Also includes: A winding device is used to wind a first diaphragm (29), an electrode (28), and a second diaphragm (30) that are composite together.

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