An electrode sheet conveying correction device and a battery cell forming apparatus

Abstract

The application relates to the technical field of batteries, and discloses an electrode tab transmission correction device and a battery cell forming equipment. The electrode tab transmission correction device comprises a transmission mechanism and a correction mechanism. The transmission mechanism has a first transmission surface, which is used for transmitting the electrode tab from the transmission mechanism to the correction mechanism. The correction mechanism has a second transmission surface, which is used for transmitting the electrode tab transmitted from the first transmission surface. The correction mechanism further comprises a blocking piece arranged on the side of the second transmission surface away from the first transmission surface, so as to limit at least one corner portion of the electrode tab. At least part of the blocking piece can be operated in an expansion-retraction mode along the direction perpendicular to the second transmission surface. In cooperation with the expansion-retraction operation, the blocking piece can shield the electrode tab during the correction process to prevent the electrode tab from flying out. When subsequent bonding operation is needed, the height of the blocking piece beyond the second transmission surface can be shortened to avoid interference. The electrode tab transmission correction device can improve the stability of the electrode tab transmission and correction, thereby improving the production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery, in particular to a pole piece transmission correction device and a battery cell forming equipment. BACKGROUND

[0002] In the prior art, the pole piece transmission is carried out in a horizontal transmission area, and the pole piece correction is carried out in a correction transmission area, so as to facilitate the pole piece attaching operation of subsequent equipment. However, in the existing production process, the pole piece is prone to flying out of the correction transmission area during the correction process. When the pole piece flies out of the correction transmission area, the operator needs to pause the equipment for repair, which greatly affects the production efficiency.

[0003] Therefore, it is urgent to provide a pole piece transmission correction device with high stability. SUMMARY

[0004] The present application provides a pole piece transmission correction device and a battery cell forming equipment to improve the stability of the pole piece during the transmission and correction process.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] According to a first aspect of the present application, a pole piece transmission correction device is provided, comprising a transmission mechanism and a correction mechanism, the transmission mechanism having a first transmission surface, the first transmission surface being used to transmit the pole piece from the transmission mechanism to the correction mechanism; the correction mechanism having a second transmission surface, the second transmission surface being used to transmit the pole piece transmitted from the first transmission surface;

[0007] The correction mechanism further comprises a blocking piece, the blocking piece being arranged on the side of the second transmission surface away from the first transmission surface to limit at least one corner of the pole piece; and at least part of the blocking piece can be operated in extension and retraction relative to the second transmission surface in the direction perpendicular to the second transmission surface.

[0008] In the pole piece transmission correction device provided by the present application, at least part of the blocking piece can be operated in extension and retraction in the direction perpendicular to the second transmission surface. Specifically, in cooperation with the extension and retraction operation, the blocking piece can shield the pole piece during the correction process to avoid the pole piece flying out, and at the same time, when the subsequent attaching operation is needed, the height of the blocking piece beyond the second transmission surface can be shortened for avoidance, so as to facilitate the subsequent attaching operation.

[0009] Therefore, the pole piece transmission correction device provided by the present application can improve the stability of the device for pole piece transmission and correction, thereby improving the production efficiency.

[0010] In an embodiment of the present application, the blocking member comprises a first block and a second block, the first block is arranged along a first edge of the second conveying surface, the second block is arranged along a second edge of the second conveying surface, the first edge is a side edge of the second conveying surface away from the first conveying surface, and the second edge is perpendicular to the first edge.

[0011] In an embodiment of the present application, the first block has a raised position and a lowered position, when the first block is in the raised position, the first block cooperates with the second block to limit at least one corner portion of the pole piece, and when the first block is in the lowered position, the top portion of the first block cooperates with the second block to form a gap for the pole piece to move out.

[0012] In an embodiment of the present application, the first block comprises at least two sub-blocks, and the at least two sub-blocks are arranged along the first edge.

[0013] In an embodiment of the present application, the leading end of the second conveying surface is higher than the trailing end of the first conveying surface along the moving direction of the pole piece.

[0014] In an embodiment of the present application, the first conveying surface is a horizontal conveying surface, and the second conveying surface is a horizontal conveying surface.

[0015] In an embodiment of the present application, the trailing end of the first conveying surface and the leading end of the second conveying surface have a height difference h in the vertical direction, and h is in the range of 2 mm to 10 mm.

[0016] In an embodiment of the present application, the trailing end of the first conveying surface and the leading end of the second conveying surface have a gap L in the horizontal direction, and L is in the range of 0 mm to 10 mm.

[0017] In an embodiment of the present application, the conveying mechanism comprises a plurality of first rollers arranged in parallel, and the plurality of first rollers form the first conveying surface; the correcting mechanism comprises a plurality of second rollers arranged in parallel, and the plurality of second rollers form the second conveying surface, and the extending direction of the second rollers and the extending direction of the first rollers form a certain angle.

[0018] According to a second aspect of the present application, an electric core forming equipment is provided, which comprises any one of the pole piece conveying and correcting devices provided in the above technical solutions. BRIEF DESCRIPTION OF DRAWINGS

[0019] To better understand this disclosure, reference may be made to the embodiments shown in the following figures. Components in the figures are not necessarily to scale, and related elements may be omitted to emphasize and clearly illustrate the technical features of this disclosure. Additionally, related elements or components may have different arrangements as known in the art. Furthermore, in the figures, the same reference numerals denote the same or similar components in various figures. Wherein:

[0020] Figure 1 This is a first schematic diagram of the electrode transmission correction device provided in the embodiments of this application;

[0021] Figure 2 This is a second schematic diagram of the electrode transmission correction device provided in the embodiments of this application;

[0022] Figure 3 This is a third schematic diagram of the electrode transmission correction device provided in the embodiments of this application;

[0023] Figure 4 for Figure 3 The first sectional view at point AA;

[0024] Figure 5 This is a fourth schematic diagram of the electrode transmission correction device provided in the embodiments of this application;

[0025] Figure 6 for Figure 3 The second sectional view at point AA;

[0026] Figure 7 for Figure 3 The third sectional view at point AA;

[0027] Figure 8 for Figure 3 The fourth sectional view at point AA;

[0028] Figure 9 This is a fifth schematic diagram of the electrode transmission correction device provided in the embodiments of this application;

[0029] Figure 10 for Figure 9 Sectional view at point AA;

[0030] Figure 11 for Figure 9 Another sectional view at point AA.

[0031] The annotations in the attached figures are explained as follows:

[0032] 01-Electrode; 1-Transmission mechanism; 11-First roller body; 2-Correction mechanism; 21-Second roller body; 22-Blocking component; 221-First stop block; 2211-Sub-stop block; 222-Second stop block; 3-Blowing mechanism; 4-Pressure holding mechanism. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Figure 1 This is a schematic diagram of the electrode transmission correction device provided in an embodiment of this application. Please refer to... Figure 1 The structure shown illustrates that the electrode transfer and correction device includes a transfer mechanism 1 and a correction mechanism 2. The transfer mechanism 1 has a first transfer surface B1, which is used to transfer the electrode 01 from the transfer mechanism 1 to the correction mechanism 2. The correction mechanism 2 has a second transfer surface B2, which is used to transfer the electrode 01 transferred from the first transfer surface B1. When the electrode 01 is transferred from the transfer mechanism 1 to the correction mechanism 2, it moves along direction c.

[0035] In one embodiment, such as Figure 2 As shown, the transmission mechanism 1 includes a plurality of parallel first rollers 11, which form a first transmission surface B1; the correction mechanism 2 includes a plurality of parallel second rollers 21, which form a second transmission surface B2, and the extension direction of the second rollers 21 forms a certain angle with the extension direction of the first rollers 11.

[0036] For example, in the transmission mechanism 1, a plurality of first rollers 11 are arranged sequentially in the traveling direction c of the electrode 01, connected to the same drive shaft, and driven by the same conveyor belt. The plurality of first rollers 11 in the transmission mechanism 1 have the same horizontal height, where 'same height' includes cases where the heights are completely equal and the height difference is less than 0.1 mm. It should be understood that the top surfaces of the plurality of first rollers 11 in the transmission mechanism 1 form a first transmission surface B1.

[0037] Similarly, the multiple second rollers 21 in the correction mechanism 2 are connected to the same drive shaft and driven by the same conveyor belt. Specifically, the multiple second rollers 21 in the correction mechanism 2 have the same horizontal height, where 'same height' includes cases where the heights are completely equal and the height difference is less than 0.1 mm. The top surfaces of the multiple second rollers 21 in the correction mechanism 2 form a second transmission surface B2.

[0038] Optionally, the diameters of the first roller 11 and the second roller 21 can be the same or different, and can be adjusted according to the actual process requirements.

[0039] Optionally, the linear speeds of the rolling surfaces of the first roller body 11 and the second roller body 21 can be the same or different, in other words, the conveying speeds of the conveying mechanism 1 and the correcting mechanism 2 can be the same or different, which can be adjusted according to actual process requirements.

[0040] In another embodiment, the conveying mechanism 1 includes a plurality of first roller bodies 11 arranged in parallel, and the correcting mechanism 2 can include a horizontal conveying member and a pulling member. The horizontal conveying member is used to convey the pole piece 01. For example, the horizontal conveying member can be composed of roller bodies parallel to the first roller body 11, or the horizontal conveying member can be a conveying belt. The pulling member is used to achieve the alignment and pulling of the pole piece 01.

[0041] It is worth noting that, in order to clearly introduce the pole piece conveying and correcting device provided by the embodiments of the present application, in the following technical solutions, the conveying mechanism 1 includes a plurality of first roller bodies 11 arranged in parallel, and the correcting mechanism 2 includes a plurality of second roller bodies 21 arranged in parallel.

[0042] Figure 3 Another structural schematic view of the pole piece conveying and correcting device provided by the embodiments of the present application, Figure 4 For Figure 3 the cross-sectional view at A-A in FIG. 4. Please refer to the structures shown in Figure 4 Reference Figure 3 , the correcting mechanism 2 further includes a blocking member 22, which is arranged on the side of the second conveying surface B2 away from the first conveying surface B1 to limit at least one corner of the pole piece 01. At least part of the blocking member 22 can be operated in extension and retraction along the direction d perpendicular to the second conveying surface B2.

[0043] It should be noted that at least part of the blocking member 22 in the pole piece conveying and correcting device provided by the embodiments of the present application can be operated in extension and retraction along the direction perpendicular to the second conveying surface B2. Specifically, in cooperation with the extension and retraction operation, the blocking member 22 can shield the pole piece 01 during the correcting process to prevent the pole piece 01 from flying out. At the same time, when the pole piece 01 needs to be subjected to subsequent lamination operation, the height m of the blocking member 22 beyond the second conveying surface B2 can be shortened for avoidance, so as to facilitate the subsequent lamination operation.

[0044] Therefore, the pole piece conveying and correcting device provided by the embodiments of the present application can improve the stability of the device for conveying and correcting the pole piece 01, thereby improving the production efficiency.

[0045] In a specific embodiment, please continue to refer to Figure 3As shown in the structure, the blocking piece 22 includes a first blocking block 221 and a second blocking block 222, the first blocking block 221 is arranged along a first edge of the second transmission surface B2, and the second blocking block 222 is arranged along a second edge of the second transmission surface B2, the first edge is a side edge of the second transmission surface B2 away from the first transmission surface B1, and the second edge is perpendicular to the first edge.

[0046] Specifically, taking the first blocking block 221 arranged along the Y direction and the second blocking block 222 arranged along the X direction as an example, the conveying process of the pole piece 01 is as follows: first, the transmission mechanism 1 conveys the pole piece 01 along the direction c to the second transmission surface B2 of the correction mechanism 2, and then uses the second transmission surface B2 to convey the pole piece 01 to the blocking piece 22 in an inclined direction (a direction inclined to the X direction towards the Y direction) to achieve positioning. It should be understood that the pole piece 01 on the second transmission surface B2 includes an X direction component speed and a Y direction component speed, and the first blocking block 221 and the second blocking block 222 cooperate to align at least one foot of the pole piece 01.

[0047] It is worth noting that if the included angle θ between the first roller body 11 and the second roller body 21 is too small or too large, it is easy to cause the one-way movement speed of the pole piece 01 in the X direction or the Y direction to be too fast, thereby causing alignment failure or a long alignment time. In the embodiment, the angle range of the included angle θ is set to 30°-60°, which can ensure the alignment efficiency of the pole piece 01, so that the pole piece 01 can be quickly aligned.

[0048] Please continue to refer to Figure 3 As shown in the structure, since the size of the pole piece 01 along the Y direction is greater than the size along the X direction, the size of the first blocking block 221 along the Y direction can be greater than the size of the second blocking block 222 along the X direction. Alternatively, the first blocking block 221 can include at least two sub-blocking blocks 2211, and the at least two sub-blocking blocks 2211 are arranged along the first edge in a spaced manner. For example, Figure 5 As shown, the two sub-blocking blocks 2211 are arranged in a spaced manner along the Y direction.

[0049] Specifically, the first blocking block 221 has a lifting position and a lowering position, when the blocking piece 22 is in the lifting position, the top of the first blocking block 221 exceeds the second transmission surface B2, and the first blocking block 221 cooperates with the second blocking block 222 to limit at least one corner of the pole piece 01. When the first blocking block 221 is in the lowering position, the distance between the top of the first blocking block 221 and the second transmission surface B2 is smaller than that in the lifting position, at this time, the top of the first blocking block 221 cooperates with the second blocking block 222 to form a avoiding opening for the pole piece 01 to move out. Specifically, the first blocking block 221 can be completely retracted below the second transmission surface B2, or the first blocking block 221 can remain a small range exceeding the second transmission surface B2.

[0050] In a possible implementation, the subsequent pole piece 01 fitting mechanism can be provided with a blocking portion, which has a groove for the first blocking block 221 to be embedded in. When the first blocking block 221 is in the raised position, the top of the first blocking block 221 is embedded in the groove, so as to form more effective shielding of the pole piece 01, avoiding the pole piece 01 flying out of the correction mechanism from the top of the first blocking block 221, thereby avoiding downtime and improving production efficiency.

[0051] It should be understood that when the first blocking block 221 includes at least two sub-blocking blocks 2211, the at least two sub-blocking blocks 2211 can be driven separately by a plurality of drive motors to broaden the applicable scenarios. Alternatively, the at least two sub-blocking blocks 2211 can be simultaneously driven by the same drive motor to simplify the overall structure.

[0052] Of course, the second blocking block 222 can also be controlled to extend and retract in the vertical direction d as needed, which will not be described here.

[0053] In some embodiments, please refer to Figure 6 The structure shown in the figure, along the direction c of the pole piece 01, the leading end of the second conveying surface B2 is higher than the trailing end of the first conveying surface B1. It should be understood that the "leading end" refers to the end of the pole piece 01 that is first contacted by the conveying mechanism 1 and the correction mechanism 2 along the direction c; similarly, the "trailing end" refers to the end of the pole piece 01 that is last contacted by the conveying mechanism 1 and the correction mechanism 2 along the direction c.

[0054] It should be noted that the pole piece conveying and correcting device provided by the embodiments of the present application forms a height difference between the conveying mechanism 1 and the correction mechanism 2 by setting the leading end of the second conveying surface B2 to be higher than the trailing end of the first conveying surface B1, so that when the pole piece 01 is conveyed by the conveying mechanism 1 to the correction mechanism 2 along the direction c, the subsequent pole piece 01 can be inserted under the previous pole piece 01 on the second conveying surface B2 as shown in the figure. Figure 6 At this time, the previous pole piece 01 on the second conveying surface B2 and the subsequent pole piece 01 are partially stacked, and each pole piece 01 no longer occupies the entire pole piece area on the second conveying surface B2, so that the conveying efficiency can be improved.

[0055] It should be understood that the form of the pole piece 01 when being conveyed between the conveying mechanism 1 and the correction mechanism 2 is not limited to the form shown in the figure, which is only illustrative here. Figure 6 Since the pole piece 01 has a certain softness, the pole piece 01 will deform to a certain extent when being conveyed between the conveying mechanism 1 and the correction mechanism 2, which is not shown here.

[0056] It should be noted that the structures of the first conveying surface B1 in the conveying mechanism 1 and the second conveying surface B2 in the correction mechanism 2 are not limited to Figure 6The structure shown is as follows. The first transmission surface B1 can be a horizontal transmission surface or an inclined transmission surface with an angle to the ground. Similarly, the second transmission surface B2 can be a horizontal transmission surface or an inclined transmission surface with an angle to the ground.

[0057] In some embodiments, along the traveling direction c of the electrode 01, the tail end of the first transmission surface B1 is not lower than the head end of the first transmission surface B1. It should be noted that when the tail end of the first transmission surface B1 is not lower than the head end of the first transmission surface B1, this structural arrangement allows the electrode 01 to have a better deformation posture during transmission between the transmission mechanism 1 and the correction mechanism 2, so that the electrode 01 can be inserted more smoothly below the previous electrode 01 on the second transmission surface B2.

[0058] Specifically, in one implementation, the first transmission surface B1 is as follows: Figure 6 In the structure shown, the tail end of the first transmission surface B1 is flush with the head end, that is, the first transmission surface B1 is a horizontal transmission surface; in another embodiment, the first transmission surface B1 is as follows: Figure 7 As shown in the structure, the tail end of the first transmission surface B1 is higher than the head end; in other words, the first transmission surface B1 is tilted upward relative to the ground. Of course, the tilt angle of the first transmission surface B1 needs to be set according to requirements. Specifically, the friction between the electrode 01 and the first transmission surface B1, as well as other factors, need to be considered to ensure that the electrode 01 can move along the direction c with the first transmission surface B1.

[0059] To facilitate the description of the structural relationship between the first transmission surface B1 and the second transmission surface B2, we will now take the first transmission surface B1 as an example. Figure 6 The horizontal transmission surface shown is such that the second transmission surface B2 is as follows: Figure 6 The horizontal transmission surface shown is used as an example for illustration.

[0060] Please refer to Figure 6 In one embodiment of the structure shown, the height difference between the tail end of the first transmission surface B1 and the head end of the second transmission surface is h in the vertical direction. The range of h is exemplarily 2mm to 10mm, or even 3mm to 4mm, such as 3mm, 3.5mm, or 4mm. It is worth noting that this height difference h affects the transmission posture of the electrode 01 between the transmission mechanism 1 and the correction mechanism 2.

[0061] Please refer to the following: Figure 8As shown, the tail end of the first transmission surface B1 and the head end of the second transmission surface B2 have a gap L in the horizontal direction, which is another factor affecting the posture of the pole piece 01 during transmission between the transmission mechanism 1 and the correction mechanism 2. For example, the gap L ranges from 0 mm to 10 mm, or even 0 mm to 8 mm. For example, the gap L is set to 0 mm, 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, or even 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, or 8 mm.

[0062] It is worth noting that by adjusting the gap L and the height difference h, the overhang of the pole piece 01 during transmission between the transmission mechanism 1 and the correction mechanism 2 can be changed, which affects the transmission posture of the pole piece 01, thereby affecting the success rate of the subsequent pole piece 01 inserted into the previous pole piece 01.

[0063] For example, the h value is selected to be 3 mm to 4 mm, and the L value is selected to be 0 mm to 8 mm. It should be noted that when the h value and the L value are set according to the above range, the transmission posture of the pole piece 01 during transmission between the transmission mechanism 1 and the correction mechanism 2 is better, and the subsequent pole piece 01 can be better inserted between the previous pole piece 01 and the second transmission surface B2.

[0064] In some embodiments, the pole piece transmission and correction device provided by the embodiments of the present application further comprises a blowing mechanism 3 as shown in Figure 9 Figure 10 For Figure 9 the cross-sectional view at A-A in Figure 9 Reference Figure 10 the structure, the blowing mechanism 3 is arranged on the side of the second transmission surface B2 facing the first transmission surface B1, and at least used for blowing air to the rear end of the pole piece 01 transmitted to the second transmission surface B2, so that the subsequent pole piece 01 can be smoothly inserted between the previous pole piece 01 located on the second transmission surface B2 and the second transmission surface B2, thereby improving the success rate of the subsequent pole piece 01 inserted into the previous pole piece 01, preventing the transmission form between the pole pieces 01 from being problematic, and improving the transmission success rate of the device. It should be understood that the "front end" refers to the part of the pole piece 01 first contacting the transmission mechanism 1 or the correction mechanism 2 along the direction c, and the "rear end" refers to the part of the pole piece 01 contacting the transmission mechanism 1 or the correction mechanism 2 along the direction c. Of course, the blowing mechanism 3 can be arranged between the transmission mechanism 1 and the correction mechanism 2 as shown in Figure 9 and Figure 10 Of course, the blowing mechanism 3 can also be arranged below the correction mechanism 2, and the blowing mechanism 3 blows air through the gap between the second roller body 21 for transmission.

[0065] ​It should be noted that the blowing mechanism 3 can include one or more blowing nozzles. In an embodiment, the blowing mechanism 3 includes a plurality of nozzles, and the plurality of nozzles are arranged at intervals along the direction Y. It should be understood that in a possible implementation, the plurality of nozzles can be selectively opened and closed, so that the blowing mechanism 3 blows the rear end of the pole piece 01 conveyed by the second conveying surface B2, so that the rear end of the pole piece 01 is lifted, and the front end of the next pole piece 01 is inserted between the previous pole piece 01 and the second conveying surface B2. Alternatively, the blowing mechanism 3 can be always turned on, and the blowing amount is controlled so that the blowing mechanism 3 always blows the pole piece 01, and it is ensured that the pole piece 01 will not be blown away.

[0066] It should be noted that in the vertical direction, the closer the blowing mechanism 3 is to the second conveying surface B2, the greater the force of the blowing mechanism 3 acting on the pole piece 01 under the same blowing amount, and vice versa. Under the same force, the blowing amount of the blowing mechanism 3 can be reduced.

[0067] In some embodiments, the pole piece conveying and correcting device provided by the embodiments of the present application further includes a pressing mechanism 4 arranged above the first conveying surface B1 as shown in Figure 11 The pressing mechanism 4 has a pressing station and a lifting station. When the pressing mechanism 4 is in the pressing station, the pressing mechanism 4 and the first conveying surface B1 form a pressing conveying space for the pole piece 01. When the pressing mechanism 4 is in the lifting station, the pole piece 01 moves out of the pressing conveying space.

[0068] It should be noted that when the pole piece conveying and correcting device provided by the embodiments of the present application is applied, the pressing mechanism 4 moves downward until the pressing conveying space is formed with the first conveying surface B1, and the pole piece 01 can move relative to the pressing conveying space along the direction c. When the pole piece 01 reaches a predetermined position, the pressing mechanism 4 releases the pole piece 01. The released pole piece 01 moves and is corrected on the second conveying surface B2 of the correcting mechanism 2.

[0069] It should be understood that when the pole piece 01 is partially conveyed from the first conveying surface B1 to the second conveying surface B2, the pole piece 01 only moves along the direction c relative to the second conveying surface B2 because the pole piece 01 is partially in the pressing conveying space. When the pressing mechanism 4 is switched from the pressing station to the lifting station, the pole piece 01 moves and is corrected on the second conveying surface B2. It should be noted that the pole piece conveying and correcting device provided by the embodiments of the present application can control when the pole piece 01 moves and is corrected on the second conveying surface B2 by controlling the pressing time of the pressing mechanism 4 on the pole piece 01, so as to prevent the pole piece 01 from flying out of the correcting area, thereby improving the stability of the pole piece 01 in the conveying and correcting process, and improving the correction success rate.

[0070] For example, when the distance between the front end of the pole piece 01 and the blocking piece 22 arranged at the first edge of the second conveying surface B2 is 4-5 mm, the pressing mechanism 4 is switched from the pressing position to the lifting position to release the pole piece 01. Of course, since the size and material of the pole piece 01 may change, the pressing mechanism 4 is not limited to being switched to the lifting position when the distance between the front end of the pole piece 01 and the blocking piece 22 is 4-5 mm.

[0071] In one specific embodiment, the pressing mechanism 4 includes at least two pressing pieces, and the at least two pressing pieces are arranged at intervals along the Y direction, and each pressing piece can rotate around its own axis. It should be noted that the pressing mechanism 4 can be provided according to requirements to include only one pressing piece, or two pressing pieces, or other number of pressing pieces. As for the shape of the pressing piece, it can be provided as a rubber wheel, or a metal wheel, or a brush, which can be set according to requirements, and will not be described here.

[0072] In one embodiment, the position of the pressing piece relative to the first conveying surface B1 is adjustable along the direction c of the pole piece 01.

[0073] It should be noted that the position of the pressing piece relative to the first conveying surface B1 is adjustable along the direction c, which can make the pole piece conveying and correcting device provided in the embodiments of the present application applicable to pole pieces 01 of different sizes, and widen the application scenarios of the device.

[0074] The embodiments of the present application also provide an electric core forming device, which includes the pole piece conveying and correcting device provided in any of the technical solutions.

[0075] For example, the electric core forming device provided in the embodiments of the present application includes two pole piece conveying and correcting devices, and the two pole piece conveying and correcting devices are symmetrically arranged and respectively used to convey first pole pieces and second pole pieces.

[0076] It should be noted that each electric core unit includes a diaphragm and first pole pieces and second pole pieces located on both sides of the diaphragm. The first pole pieces and the second pole pieces are opposite in polarity. For example, when the first pole pieces are positive electrodes, the second pole pieces are negative electrodes, and vice versa, when the first pole pieces are negative electrodes, the second pole pieces are positive electrodes. When the electric core forming device provided in the embodiments of the present application is applied, two pole piece conveying and correcting devices can be used to convey first pole pieces and second pole pieces respectively.

[0077] Of course, the electric core forming device provided in the embodiments of the present application can also be provided with a fitting device to fit the first pole pieces and the second pole pieces on both sides of the diaphragm. As for the specific structure of the fitting device, it can be set according to requirements, and will not be described here.

[0078] It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the present application without departing from the spirit and scope of the application. Thus, it is intended that the present application cover the modifications and variations of this application provided they come within the scope of the appended claims and their equivalents.

Claims

1. An electrode tab transfer correction device, characterized by, The transmission mechanism has a first transmission surface for transmitting the pole piece from the transmission mechanism to the correction mechanism; the correction mechanism has a second transmission surface for transmitting the pole piece transmitted from the first transmission surface; The correction mechanism further comprises a blocking member arranged on the side of the second transmission surface away from the first transmission surface to limit at least one corner of the pole piece; and at least part of the blocking member can be operated in extension relative to the second transmission surface in the direction perpendicular to the second transmission surface; Further comprising a blowing mechanism arranged on the side of the second transmission surface facing the first transmission surface and at least used for blowing the rear end of the pole piece transmitted to the second transmission surface; Further comprising a pressing mechanism arranged above the first transmission surface, the pressing mechanism having a pressing station and a lifting station; when the pressing mechanism is in the pressing station, the pressing mechanism and the first transmission surface form a pressing transmission space for the pole piece, so that when the pole piece is partially transmitted from the first transmission surface to the second transmission surface, the pole piece is partially in the pressing transmission space and only moves forward relative to the second transmission surface; when the pressing mechanism is in the lifting station, the pole piece moves out of the pressing transmission space and moves on the second transmission surface for correction.

2. The pole piece transfer correction device of claim 1, wherein, The blocking member comprises a first blocking block and a second blocking block, the first blocking block is arranged along a first edge of the second transmission surface; the second blocking block is arranged along a second edge of the second transmission surface, the first edge is the side edge of the second transmission surface away from the first transmission surface, and the second edge is perpendicular to the first edge.

3. The pole piece transfer correction device of claim 2, wherein, The first blocking block has a lifting station and a lowering station; when the first blocking block is in the lifting station, the first blocking block cooperates with the second blocking block to limit at least one corner of the pole piece; when the first blocking block is in the lowering station, the top of the first blocking block cooperates with the second blocking block to form a clearance for the pole piece to move out.

4. The pole piece transfer correction device of claim 3, wherein, The first blocking block comprises at least two sub-blocking blocks, which are arranged at intervals along the first edge.

5. The pole piece transfer correction device of any of claims 1-4, wherein, The leading end of the second transmission surface is higher than the trailing end of the first transmission surface in the direction of the pole piece.

6. The pole piece transfer correction device of claim 5, wherein, The first transmission surface is a horizontal transmission surface; the second transmission surface is a horizontal transmission surface.

7. The pole piece transfer correction device of claim 6, wherein, In the vertical direction, the trailing end of the first transmission surface and the leading end of the second transmission surface have a height difference h, h is in the range of 2mm-10mm.

8. The pole piece transfer correction device of claim 7, wherein, In the horizontal direction, the trailing end of the first transmission surface and the leading end of the second transmission surface have a gap L, L is in the range of 0mm-10mm.

9. The pole piece transfer correction device of claim 8, wherein, The transmission mechanism comprises a plurality of first roller bodies arranged in parallel, the plurality of first roller bodies form the first transmission surface; the correction mechanism comprises a plurality of second roller bodies arranged in parallel, the plurality of second roller bodies form the second transmission surface, and the extension direction of the second roller bodies forms a certain angle with the extension direction of the first roller bodies.

10. An electrode forming apparatus, characterized by comprising: The pole piece transmission and correction device comprises any one of the pole piece transmission and correction devices according to claims 1-9.

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