Restoration device and battery piece transmission equipment

Abstract

The utility model discloses a restoration device and battery piece transmission equipment, the restoration device comprises restoration seats, a guide mechanism and a linkage mechanism, there are two sets of restoration seats arranged at intervals along a first direction, each set of restoration seats is provided with restoration members, the two sets of restoration seats can be arranged close to each other or away from each other along the first direction, and the two sets of restoration seats can be arranged close to each other or away from each other along the first direction. The base is movably arranged in the vertical direction; the guide mechanism provides movement guidance for the two groups of the restoration seats, so that the restoration seats move in the up-down direction while moving in the first direction; a linkage mechanism is movably connected with the two groups of restoration seats, the linkage mechanism at least comprises a linkage piece, and the linkage mechanism is configured to be in linkage when the linkage piece moves in the up-down direction so that the two groups of restoration seats can get close to each other or get away from each other in the first direction; and the two groups of restoration seats move upwards or downwards at the same time, and the restoration device is simple in structure and can restore the products in the conveying direction.

Description

Technical Field

[0001] The utility model relates to a rectifying device and a battery cell conveying device. Background Art

[0002] During the process of a conveying device conveying products, the products are extremely likely to deviate in position, which will affect the subsequent production process. Usually, a rectifying device is set to correct the deviation of the products. Most rectifying devices are provided with two rectifying members that can move relative to each other, and two driving mechanisms are respectively used to drive the two rectifying members to move relative to each other. The rectifying device has a complex structure and low efficiency.

[0003] Most rectifying devices rectify products in a direction perpendicular to the conveying direction. The two rectifying members are arranged on both sides of the conveying mechanism along a direction perpendicular to the conveying direction. After the product is conveyed between the two rectifying members, by driving the two rectifying members to move relatively closer along a direction perpendicular to the conveying direction, the rectification and correction of the product are realized. However, for some products, glue or other materials are coated on both sides perpendicular to the conveying direction, or some products are provided with precision structures on both sides perpendicular to the conveying direction. Therefore, they cannot be rectified in this direction. If a common rectifying device is used to rectify the product in the conveying direction, the rectifying member will block the conveying path of the product, resulting in the rectifying member being unable to convey normally. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a new rectifying device.

[0005] To achieve the above purpose, the technical solution adopted in the embodiment of the utility model is: a rectifying device, the rectifying device includes:

[0006] Rectifying seats, which are provided with two groups spaced along a first direction, and the two groups of rectifying seats can be arranged to move closer to or away from each other along the first direction, and each group of rectifying seats can also be arranged to move in the up and down direction;

[0007] A guiding mechanism, which provides movement guiding for the two groups of rectifying seats, so that the rectifying seats move in the up and down direction while moving along the first direction;

[0008] A linkage mechanism, the linkage mechanism is movably connected to the two groups of rectifying seats, and the linkage mechanism at least includes a linkage member. Among them, the linkage mechanism is configured to be linked such that the two groups of rectifying seats move closer to or away from each other along the first direction when the linkage member moves in the up and down direction, and to make the two groups of rectifying seats move up or down simultaneously.

[0009] In some embodiments, the guiding mechanism includes two groups of guiding members. The guiding members extend obliquely simultaneously in the up-and-down direction along the first direction. The guiding members have a first end portion and a second end portion respectively disposed at different ends in the up-and-down direction. Along the first direction, the distance between the two first end portions is smaller than the distance between the two second end portions. The two groups of alignment seats are respectively arranged on the two guiding members to move along the length extension direction of the guiding members.

[0010] In some embodiments, the alignment device has at least a first state and a second state. In the first state, the alignment seat is at a first height, and the two groups of alignment seats have a first distance along the first direction; in the second state, the alignment seat is at a second height higher than the first height, and along the first direction, the distance between the two groups of alignment seats is a second distance smaller than the first distance.

[0011] In some embodiments, the linkage mechanism includes a connecting member connected between the linkage member and the alignment seat. The connecting member includes two disposed on different sides of the linkage member along the first direction. One end portion of each connecting member is rotatably connected to a group of alignment seats, and the other end portion of the connecting member is rotatably connected to the linkage member.

[0012] In some embodiments, the alignment device has at least a first state and a second state. When the alignment device is in the first state, the linkage member is in a first position, and the projections of the two connecting members on a vertical plane extending along the first direction have a first included angle; when the alignment device is in the second state, the linkage member is in a second position below the first position, and the projections of the two connecting members on a vertical plane extending along the first direction have a second included angle, and the second included angle is smaller than the first included angle.

[0013] In some embodiments, the alignment device includes a driving mechanism. The driving mechanism includes a synchronous belt transmitted in the up-and-down direction and a second guide rail extending in the up-and-down direction. The linkage member has a mounting portion. Along the first direction, the mounting portion is located between the synchronous belt and the second guide rail. One side of the mounting portion is fixedly connected to the synchronous belt, and the other side of the mounting portion is slidably disposed on the second guide rail.

[0014] In some embodiments, the guiding mechanism includes two first guide rails. Along the first direction, the two first guide rails incline towards each other from bottom to top. A sliding member is fixedly provided on the alignment seat, and the sliding member is slidably disposed on the first guide rail.

[0015] In some embodiments, the guiding mechanism includes two sets of guiding members, the rectifying device has a virtual plane, the two guiding members are symmetrically arranged relative to the virtual plane, and the two sets of rectifying seats are symmetrically arranged relative to the virtual plane.

[0016] In some embodiments, a rectifying member is provided on each rectifying seat.

[0017] To achieve the above object, the technical solution adopted in the embodiments of the present invention is: a rectifying device, including:

[0018] Rectifying seats, having two sets spaced along a first direction, a rectifying member is provided on each rectifying seat, the two sets of rectifying seats can be arranged to approach or move away from each other along the first direction, and each set of rectifying seats can also be arranged to move in the up and down direction;

[0019] A guiding mechanism, including two sets of guiding members, the guiding members extend obliquely along the first direction and simultaneously along the up and down direction, the guiding members have a first end and a second end respectively located at different ends in the up and down direction, along the first direction, the distance between the two first ends is less than the distance between the two second ends, and the two sets of rectifying seats are respectively arranged to move along the length extension direction of the guiding members on the two guiding members;

[0020] A linkage mechanism, the linkage mechanism includes a linkage member and a connecting member connected between the linkage member and the rectifying seat, the linkage member is arranged to move in the up and down direction, the linkage member has a connecting portion and a mounting portion respectively located on opposite sides of itself along a second direction, the second direction is perpendicular to the first direction, along the first direction, the connecting portion is located between the two guiding members; the connecting member includes two arranged on opposite sides of the linkage member along the first direction, the connecting member has a third end and a fourth end respectively located at different ends in its length direction, the third end is rotatably connected to the rectifying seat around a first center line, the fourth end is rotatably connected to the connecting portion around a second center line, and the first center line and the second center line are parallel to each other and extend along the second direction;

[0021] A driving mechanism, for driving the linkage member to move up and down, and the mounting portion is arranged on the driving mechanism.

[0022] Another object of the present invention is to provide a new battery cell transfer device.

[0023] To achieve the above object, the technical solution adopted in the embodiment of the present utility model is: a battery cell transfer device, including a transfer mechanism for transferring battery cells in a first direction. The battery cell transfer device further includes the above-mentioned alignment device. An alignment station is provided on the transfer mechanism, and the alignment device is arranged at the alignment station.

[0024] Due to the application of the above technical solution, the embodiment of the present utility model has the following advantages compared with the prior art: In the alignment device of the embodiment of the present utility model, the two alignment seats can be linked to approach each other through the linkage mechanism, and the alignment operation of the product can be realized. Therefore, only one driving mechanism for driving the linkage member to move up and down needs to be provided for the alignment device, which simplifies the structure of the alignment device. At the same time, when the two alignment seats approach or move away from each other in the first direction, they also move up or down together. In this way, when the alignment process is not carried out, the alignment seats can move up or down, so as to withdraw from the transmission path of the product, and the alignment seats will not block the transmission of the product. When the alignment process needs to be carried out, the alignment seats move up or down to drive the alignment members to approach the product. Therefore, the alignment device can perform alignment processing on the product along the transmission direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Attached Figure 1 is a three-dimensional structural schematic diagram of the alignment device in the first state in a specific embodiment of the present utility model;

[0026] Attached Figure 2 is for Figure 1 the front view;

[0027] Attached Figure 3 is for Figure 1 the side view;

[0028] Attached Figure 4 is a three-dimensional structural schematic diagram of the alignment device in the second state in a specific embodiment of the present utility model, where the product is located between the two alignment members;

[0029] Attached Figure 5 is for Figure 4 the front view;

[0030] Attached Figure 6 is for Figure 4 the side view;

[0031] Attached Figure 7 is a three-dimensional schematic diagram of a partial structure of the alignment device in a specific embodiment of the present utility model;

[0032] Attached Figure 8 is a three-dimensional schematic diagram of another partial structure of the alignment device in a specific embodiment of the present utility model;

[0033] Wherein: 100, solar cell; 1, alignment base; 11, alignment member; 12, sliding member; 2, first guide rail; 31, linkage member; 311, connecting portion; 312, mounting portion; 32, connecting member; 41, synchronous belt; 411, tooth groove; 42, second guide rail; 43, gear; 44, driving member; 5, fixed seat; 51, base; 52, first side plate; 53, second side plate. Detailed implementation manner

[0034] The technical solutions of the present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments, so that the advantages and features of the present utility model are more easily understood by those skilled in the art. Obviously, the described embodiments of the present application are only a part of the embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0035] See Figure 1 An alignment device as shown, including an alignment base 1, a guiding mechanism and a linkage mechanism. Among them, there are two groups of alignment bases 1 arranged at intervals along the first direction. The two groups of alignment bases 1 can be arranged to approach or move away from each other along the first direction, and each group of alignment bases 1 can also be arranged to move in the up and down direction. The guiding mechanism is used to provide movement guidance for the two groups of alignment bases 1, so that the alignment bases 1 move in the up and down direction while moving along the first direction. The linkage mechanism is movably connected to the two groups of alignment bases 1. The linkage mechanism at least includes a linkage member 31. When the linkage member 31 moves in the up and down direction, the linkage mechanism is linked so that the two groups of alignment bases 1 approach or move away from each other along the first direction, and the two groups of alignment bases 1 move up or down simultaneously.

[0036] Since the two groups of alignment bases 1 of the alignment device move relative to each other along the first direction, the two groups of alignment bases 1 will simultaneously move in the up and down direction. During the transmission of the product, the alignment bases 1 can move up or down out of the transmission path of the product, so as not to affect the normal transmission of the product. When aligning the product, the alignment bases 1 can move up or down close to the product, and the alignment bases 1 on both sides can move closer to each other to align the product. After the processing is completed, the alignment bases 1 can move away from the product, and the product can continue to be transmitted forward.

[0037] In this embodiment, the alignment device is arranged in the solar cell transmission device for aligning the transmitted solar cells 100. The solar cell transmission device includes a transmission mechanism for transmitting the solar cells 100 along the transmission direction. There is an alignment station on the transmission mechanism, and the alignment device is arranged at the alignment station. In this embodiment, the two groups of alignment bases 1 are arranged at intervals along the transmission direction, and the first direction is the transmission direction. The alignment device can align the solar cells 100 along the transmission direction.

[0038] In this embodiment, each alignment seat 1 is provided with an alignment member 11 for aligning the product. Preferably, the alignment member 11 is a roller that can rotate about its own axis. A plurality of alignment members 11 are provided on each alignment seat 1, and the plurality of alignment members 11 are arranged at intervals. When performing alignment processing, the alignment member 11 contacts the battery cell 100, and the alignment member 11 pushes the battery cell 100 to make it straight. The surface of the alignment member 11 is coated with a flexible material, such as rubber or foam, to reduce the risk of the battery cell 100 being broken when the alignment member 11 abuts against the battery cell 100.

[0039] In other embodiments, the alignment seat 1 may not be provided with the alignment member 11, and the battery cell 100 can be aligned directly by the alignment seat 1 abutting against the battery cell 100. A flexible material, such as rubber or foam, is provided on the side of the alignment seat 1 that abuts against the battery cell 100 to reduce the risk of the battery cell 100 being broken when the alignment seat 1 abuts against the battery cell 100.

[0040] In this embodiment, the guiding mechanism includes guiding members. There are two groups of guiding members arranged along the first direction. The guiding members extend obliquely along the up and down directions while extending along the first direction. The guiding members have a first end portion and a second end portion respectively disposed at different ends in the up and down directions. Along the first direction, the distance between the two first end portions is less than the distance between the two second end portions. The two alignment seats 1 are respectively arranged on the two guiding members so as to move along the length extension direction of the guiding members. When the alignment seat 1 moves towards the first end portion of the guiding member, the two groups of alignment seats 1 move relatively closer along the first direction, and the alignment member 11 can contact the product and align the product. When the alignment seat 1 moves towards the second end portion of the guiding member, the two groups of alignment seats 1 move relatively farther apart along the first direction, and the alignment member 11 also separates from the product.

[0041] In this embodiment, the linkage mechanism further includes a connecting member 32 connected between the linkage member 31 and the alignment seat 1. The connecting member 32 includes two that are respectively disposed on different sides of the linkage member 31 along the first direction. Specifically, the linkage member 31 is arranged to move along the up and down directions. One end portion of each connecting member 32 is rotatably connected to the alignment seat 1 on one side, and the other end portion of the connecting member 32 is rotatably connected to the linkage member 31. When the linkage member 31 moves up and down, the linkage member 31 drives the two groups of alignment seats 1 to move on the guiding members through the connecting member 32.

[0042] In this embodiment, the alignment member 11 is arranged on the upper part of the alignment seat 1. Along the first direction, the distance between the upper parts of the two groups of guiding members is less than the distance between the lower parts. The alignment device has at least a first state and a second state. In the first state, the alignment seat 1 is at a first height, and the two groups of alignment seats 1 have a first distance along the first direction; in the second state, the alignment seat 1 is at a second height higher than the first height, and the distance between the two groups of alignment seats 1 is a second distance less than the first distance.

[0043] In this embodiment, the guiding mechanism and the linkage mechanism are arranged below the alignment station. Refer to Figures 1 to 3 As shown, in the first state, the alignment seat 1 provided with the alignment member 11 is also located below the alignment station, and the alignment member 11 is located below the solar cell 100. The alignment device does not affect the transmission mechanism for transmitting the solar cell 100. During the process of the alignment device converting to the second state, the alignment member 11 extends above the alignment station, and the two groups of alignment seats 1 approach each other relatively. The alignment members 11 of the two groups of alignment seats 1 respectively contact the two side edges of the solar cell 100 along the transmission direction, and drive the solar cell 100 to be aligned, correcting the position of the solar cell 100. Refer to Figures 4 to 6 As shown, when the alignment device is in the second state, the solar cell 100 is located between the alignment members 11 on both sides. After the position of the solar cell 100 is aligned, the alignment device converts to the first state again, the alignment member 11 separates from the solar cell 100 and retracts below the transmission mechanism. After the alignment device converts to the first state, the transmission mechanism can transmit the solar cell 100 to the next station and perform subsequent processing.

[0044] In this embodiment, when the alignment device is in the first state, the linkage member 31 is in the first position, and the projections of the two connecting members 32 on the vertical plane extending in the first direction have a first included angle. Refer to Figure 5 As shown, when the alignment device is in the second state, the linkage member 31 is in the second position below the first position, and the projections of the two connecting members 32 on the vertical plane extending in the first direction have a second included angle, and the second included angle is smaller than the first included angle. Specifically, refer to Figure 1 、 2 As shown, when the alignment device is in the first state, the two connecting members 32 are relatively unfolded along the first direction. When the alignment device converts to the second state, the linkage member 31 moves downward and drives the two connecting members 32 to be relatively folded along the first direction, thereby driving the two groups of alignment seats 1 to approach each other relatively along the first direction and move upward along the guiding member.

[0045] In this embodiment, the alignment device includes two groups of first guide rails 2 that extend obliquely in the vertical direction. The two groups of first guide rails 2 extend obliquely towards each other from bottom to top along the first direction. The first guide rails 2 constitute the above-mentioned guiding member. A sliding member 12 is fixedly provided on the alignment seat 1, and the sliding member 12 is slidably disposed on the first guide rail 2. Specifically, the sliding member 12 is fixedly provided at the lower part of the alignment seat 1, and the connecting member 32 is rotatably connected to the middle part of the alignment seat 1.

[0046] In this embodiment, the alignment device further includes a driving mechanism for driving the linkage member 31 to move up and down. Refer to Figure 7 As shown, the driving mechanism includes a synchronous belt 41 that is transmitted in the vertical direction. The linkage member 31 is fixedly provided on the synchronous belt 41, and the synchronous belt 41 drives the linkage member 31 to move up and down. In this embodiment, refer toFigure 7 As shown, the driving mechanism further includes a gear 43 rotatably arranged around the rotation center line, and a driving member 44 for driving the gear 43 to rotate. The rotation center line extends along the second direction. Tooth grooves 411 are provided on the synchronous belt, and the gear 43 meshes with the tooth grooves 411, and the synchronous belt 41 is driven to be transmitted in the up and down directions by the gear 43. In this way, the driving mechanism can drive the linkage 31 to move up and down more stably and accurately.

[0047] In other embodiments, the driving mechanism is a cylinder or a linear motor. Under the drive of the cylinder or the linear motor, the linkage 31 moves up and down and drives the alignment seat 1 to move.

[0048] In this embodiment, the driving mechanism further includes a second guide rail 42 extending in the up and down directions. The linkage 31 is slidably arranged on the second guide rail 42. The second guide rail 42 provides guidance for the up and down movement of the linkage 31 to ensure that the alignment device can work normally and accurately.

[0049] In this embodiment, refer to Figure 7 As shown, the alignment device includes a fixed seat 5. The fixed seat 5 includes a base 51 and side plates fixedly arranged on the base 51. The side plates extend upward from the base 51. The first guide rail 2 is fixedly arranged on the base 51, and the driving mechanism is arranged on the side plates. Specifically, the side plates include a first side plate 52 and a second side plate 53. Along the first direction, the second side plate 53 is fixedly arranged on one side of the first side plate 52. The gear 43, the synchronous belt 41 and the driving member 44 are arranged on the first side plate 52, and the second guide rail 42 is arranged on the second side plate 53. Among them, the synchronous belt 41 and the gear 43 are located on the side of the first side plate 52 close to the guiding member, and the driving member 44 is arranged on the side of the first side plate 52 far from the guiding member.

[0050] In this embodiment, the linkage 31 has a connecting portion 311 and a mounting portion 312 respectively arranged on different sides along the second direction. Along the first direction, the connecting portion 311 is located between the two guiding members, and the connecting member 32 is rotatably connected to the connecting portion 311. Along the first direction, the mounting portion 312 is located between the synchronous belt 41 and the second guide rail 42, and one side of the mounting portion 312 is fixedly connected to the synchronous belt 41, and the other side of the mounting portion 312 is slidably arranged on the second guide rail 42.

[0051] In this embodiment, the connecting member 32 has a third end portion and a fourth end portion respectively arranged at different ends along its length direction. The third end portion is rotatably connected to the alignment seat 1 around the first center line X1, and the two fourth end portions are rotatably connected to the linkage together around the second center line X2. The first center line X1 and the second center line X2 are parallel to each other and extend along the second direction. Specifically, the two fourth end portions are rotatably connected to the connecting portion 311 together around the second center line X2.

[0052] In this embodiment, refer to Figure 8 As shown, two connecting members 32 are arranged at intervals in the second direction, and the second direction is perpendicular to the first direction. Refer to Figure 1 As shown, in the second direction, the guiding mechanism is located between the two connecting members 32. The spaced arrangement of the two connecting members 32 can avoid mutual interference between them, thus affecting the movement of the alignment seat 1. The two connecting members 32 are respectively arranged on both sides of the guiding mechanism, which can better save space compared with being spaced and arranged on the same side of the guiding mechanism, thereby reducing the volume of the alignment device. In this embodiment, refer to Figure 1 As shown, the connecting portion 311 extends in the second direction. In the second direction, the two connecting members 32 are respectively rotatably connected to opposite sides of the connecting portion 311.

[0053] In this embodiment, the alignment device has a virtual plane. The two guiding members are symmetrically arranged with respect to the virtual plane, and the two alignment seats 1 are also symmetrically arranged with respect to the virtual plane. The second center line X2 is located in the virtual plane. Such an arrangement of the alignment device is more conducive to production and manufacturing and can better ensure accuracy.

[0054] Embodiment 2

[0055] There is no figure. The main difference between this embodiment and Embodiment 1 is that in this embodiment, the alignment device is arranged above the alignment station. The distance between the lower parts of the two guiding members is smaller than the distance between the upper parts. The aligning member 11 is arranged at the lower part of the alignment seat 1. When the alignment device is in the first state, there is a gap between the aligning member 11 and the transmission mechanism in the up-down direction for the battery wafer 100 with a battery to be transmitted. When the alignment device is switched to the second state, the alignment seat 1 moves downward and approaches the alignment station. Specifically, during the process of the alignment device being switched to the second state, the linkage member 31 moves upward and drives the two connecting members 32 to approach each other relatively. The connecting member 32 drives the two alignment seats 1 to approach each other relatively, so that the alignment seat 1 moves downward along the guiding member, so that the aligning members 11 on the two groups of alignment seats 1 move downward while approaching each other relatively, thereby performing alignment processing on the battery wafer 100 located below.

[0056] In summary, the alignment device of the above embodiments has a simple structure. Only one set of driving mechanisms needs to be provided. By driving the linkage member 31 to move up and down through the driving mechanisms, the two alignment seats 1 can be driven to move, thereby achieving the alignment process. During the up-and-down movement of the linkage member 31, the linkage member 31 can drive the two alignment seats 1 to move along the guiding members through the connecting members 32, so as to drive the two alignment seats 1 to approach or move away from each other relatively. During the process of the two alignment seats 1 approaching or moving away from each other relatively, the two alignment seats 1 can also move up or down synchronously. Thus, during the transmission of the product, the alignment seats 1 can move up or down to withdraw from the transmission path of the product, and when the product is being aligned, the alignment seats 1 can move up or down relatively closer to the product. Therefore, the alignment device can align the product along the transmission direction.

[0057] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. However, the protection scope of the present invention cannot be limited thereby. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A rectifying device, characterized in that, The alignment device includes: Alignment seats, which are provided in two groups spaced along a first direction, and the two groups of alignment seats can be arranged to approach or move away from each other along the first direction, and each group of alignment seats can also be arranged to move in the up and down direction; A guiding mechanism, which provides movement guidance for the two groups of alignment seats, so that the alignment seats move in the up and down direction while moving along the first direction; A linkage mechanism, the linkage mechanism is movably connected to the two groups of alignment seats, and the linkage mechanism at least includes a linkage member. Among them, the linkage mechanism is configured to be linked when the linkage member moves in the up and down direction, so that the two groups of alignment seats approach or move away from each other along the first direction, and so that the two groups of alignment seats move up or down simultaneously.

2. The straightening device according to claim 1, characterized in that: The guiding mechanism includes two guiding members, the guiding members extend obliquely along the first direction and simultaneously along the up and down direction, the guiding members have a first end portion and a second end portion respectively provided at different ends in the up and down direction, and along the first direction, the distance between the two first end portions is smaller than the distance between the two second end portions, and the two groups of alignment seats are respectively arranged to move along the length extension direction of the guiding members on the two guiding members.

3. The rectifying device according to claim 2, wherein: The alignment device at least has a first state and a second state. In the first state, the alignment seats are at a first height, and the two groups of alignment seats have a first distance along the first direction; in the second state, the alignment seats are at a second height higher than the first height, and along the first direction, the distance between the two groups of alignment seats is a second distance smaller than the first distance.

4. The alignment device according to claim 1, wherein: The linkage mechanism includes connecting members connected between the linkage member and the alignment seats. The connecting members include two provided on different sides of the linkage member along the first direction. One end of each connecting member is rotatably connected to a group of alignment seats, and the other end of the connecting member is rotatably connected to the linkage member.

5. The straightening device according to claim 4, characterized in that: The alignment device at least has a first state and a second state. When the alignment device is in the first state, the linkage member is in a first position, and the projections of the two connecting members on a vertical plane extending along the first direction have a first included angle; when the alignment device is in the second state, the linkage member is in a second position below the first position, and the projections of the two connecting members on a vertical plane extending along the first direction have a second included angle, and the second included angle is smaller than the first included angle.

6. The straightening device according to claim 1, characterized in that: The alignment device includes a driving mechanism. The driving mechanism includes a synchronous belt transmitted in the up and down direction and a second guide rail extending in the up and down direction. The linkage member has a mounting portion. Along the first direction, the mounting portion is located between the synchronous belt and the second guide rail. One side of the mounting portion is fixedly connected to the synchronous belt, and the other side of the mounting portion is slidably arranged on the second guide rail.

7. The straightening device according to claim 1, characterized in that: The guiding mechanism includes two first guide rails. In the first direction, the two first guide rails are inclined towards each other from bottom to top. A sliding member is fixedly provided on the alignment seat, and the sliding member is slidably arranged on the first guide rail; And / or, a rectifying member is provided on each of the sets of rectifying seats.

8. The alignment device according to claim 1, characterized in that: The guiding mechanism includes two sets of guiding members. The rectifying device has a virtual plane, and the two guiding members are symmetrically arranged with respect to the virtual plane, and the two sets of rectifying seats are symmetrically arranged with respect to the virtual plane.

9. A rectifying device, characterized in that: Comprising: Rectifying seats, having two sets arranged at intervals in the first direction. A rectifying member is provided on each set of rectifying seats. The two sets of rectifying seats can be arranged to approach or move away from each other in the first direction, and each set of rectifying seats can also be arranged to move in the up and down direction; A guiding mechanism, including two sets of guiding members. The guiding members obliquely extend in the first direction and simultaneously in the up and down direction. The guiding members have a first end portion and a second end portion respectively provided at different ends in the up and down direction. In the first direction, the distance between the two first end portions is less than the distance between the two second end portions. The two sets of rectifying seats are respectively arranged to move along the length extension direction of the guiding members on the two guiding members; A linkage mechanism, the linkage mechanism includes a linkage member and a connecting member connected between the linkage member and the rectifying seat. The linkage member is arranged to move in the up and down direction. The linkage member has a connecting portion and a mounting portion respectively provided on opposite sides of itself in the second direction. The second direction is perpendicular to the first direction. In the first direction, the connecting portion is located between the two guiding members; The connecting member includes two arranged on opposite sides of the linkage member in the first direction. The connecting member has a third end portion and a fourth end portion respectively provided at different ends in its length direction. The third end portion is rotatably connected to the rectifying seat around a first center line, and the fourth end portion is rotatably connected to the connecting portion around a second center line. The first center line and the second center line are parallel to each other and extend in the second direction; A driving mechanism for driving the linkage member to move up and down, and the mounting portion is arranged on the driving mechanism.

10. A battery cell transfer device, comprising a transfer mechanism for transferring battery cells in a first direction, characterized in that: The battery cell transfer device further includes a rectifying device as described in any one of claims 1 to 9. A rectifying station is provided on the transfer mechanism, and the rectifying device is arranged at the rectifying station.

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