Pole piece conveying structure and lamination stacking machine

Abstract

The utility model relates to a pole piece conveying structure and a lamination stacking machine, and relates to the technical field of lamination stacking machines. The pole piece conveying structure comprises a main driving roller and at least two pressing rollers. The main driving roller makes contact with the pole pieces to drive the pole pieces to move to complete conveying. The at least two compression rollers are arranged along the circumferential direction of the main driving roller, and the pole pieces are positioned between the compression rollers and the main driving roller. Wherein the at least two pressing rollers are respectively tangent to the main driving roller so as to press the pole piece to be in contact with the main driving roller. According to the pole piece conveying structure provided by the invention, the problem that the pole pieces are swelled or damaged due to uneven stress caused by small contact area between the pole piece conveying structure of the lamination machine and the pole pieces in the prior art can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of lamination machines, and in particular to a pole piece conveying structure and a lamination machine. Background Art

[0002] During the production and processing of power batteries, the electrode material rolls need to be transported, cut, stacked and other processes.

[0003] In the prior art, when transporting the electrode sheet roll, the electrode sheet roll is generally driven by a rotating roller structure to achieve the conveying process. In the specific conveying process, the rotating roller structure usually includes a pressure roller and a main roller. The electrode sheet roll is placed between the pressure roller and the main roller. The two rollers press the electrode sheet roll tightly and rotate it to transport it.

[0004] However, when the above structure is in use, the contact area between the electrode material roll and the roller structure is limited to the position where the pressure roller and the main roller are tangent, resulting in a small contact area between the roller structure and the electrode material roll. Therefore, when the main roller is started, it is easy to cause uneven force on the electrode material roll, which in turn causes bulging or damage to the electrode material roll, affecting the subsequent production and processing quality. Utility Model Content

[0005] The purpose of this application is to provide a pole piece conveying structure and a laminating machine, which can solve the problem in the prior art that the pole piece conveying structure of the laminating machine has a small contact area with the pole piece, resulting in uneven force on the pole piece, resulting in bulging or damage.

[0006] To achieve the above objectives, according to a first aspect of the present application, embodiments of the present application provide a pole piece conveying structure. The pole piece conveying structure includes a main drive roller and at least two pressure rollers. The main drive roller contacts the pole piece to drive the pole piece to complete conveyance. At least two pressure rollers are arranged circumferentially along the main drive roller, with the pole piece positioned between the pressure rollers and the main drive roller. At least two pressure rollers are tangential to the main drive roller to compress the pole piece into contact with the main drive roller.

[0007] Based on the above-mentioned embodiments of the present application, by setting at least two pressure rollers, compared with the prior art method of setting only one pressure roller and one main drive roller, the multiple pressure rollers in the above-mentioned technical solution in the present application can all press the pole piece so that the pole piece contacts the main drive roller, thereby increasing the contact area between the pole piece and the main drive roller. Furthermore, by setting multiple pressure rollers in the present application, it is also possible to tighten the pole piece, and the tightened pole piece can better fit with the arc surface structure of the main drive roller, thereby further increasing the contact area between the pole piece and the main drive roller. In summary, through the above-mentioned setting of the present application, the contact area between the pole piece and the main drive roller can be increased during the transportation of the pole piece, thereby making the force on the pole piece more uniform when the main drive roller rotates, reducing the possibility of bulging or damage during the transportation of the pole piece, thereby improving the subsequent production and processing quality of the pole piece.

[0008] In some embodiments, two pressing rollers are provided, and the two pressing rollers are respectively provided as a first pressing roller and a second pressing roller. The first pressing roller and the second pressing roller are respectively tangential to the main driving roller.

[0009] Based on the above-mentioned embodiments of the present application, when there are two pressing rollers, the two pressing rollers are specifically divided into a first pressing roller and a second pressing roller. The first pressing roller and the second pressing roller work together to tighten the pole piece so that the pole piece area between the two can contact the main drive roller, thereby increasing the contact area between the pole piece and the main drive roller.

[0010] In some embodiments, the axis of the first pressing roller is parallel to the axis of the main driving roller, and the axis of the second pressing roller is parallel to the axis of the main driving roller.

[0011] Based on the above-mentioned embodiment of the present application, by setting the axis of the first pressing roller parallel to the axis of the main drive roller, the gap between the first pressing roller and the main drive roller in the axial direction is kept fixed, so that when the first pressing roller presses the electrode piece, the force applied to the electrode piece in the axial direction of the first pressing roller is more uniform. Similarly, by setting the axis of the second pressing roller parallel to the axis of the main drive roller, the force applied to the electrode piece in the axial direction of the second pressing roller is more uniform. This further reduces the possibility of bulging or damage to the electrode piece during transportation.

[0012] In some embodiments, the line between the axis of the first lamination roller and the axis of the main drive roller forms a first connecting surface, and the line between the axis of the second lamination roller and the axis of the main drive roller forms a second connecting surface. The angle between the first connecting surface and the second connecting surface is α1, 45°≤α1≤90°.

[0013] Based on the above-mentioned embodiment of the present application, when two pressure rollers are provided, the arcuate area of ​​the main drive roller corresponding to the angle α1 between the first and second connecting surfaces is the contact area between the pole piece and the main drive roller when the pole piece is in the tensioned state. Therefore, by limiting the angle α1 between the first and second connecting surfaces, the contact area between the pole piece and the main drive roller can also be limited, preventing excessive or insufficient contact area from affecting the driving effect.

[0014] In some embodiments, the gap size between the first stitching roller and the main driving roller is the same as the gap size between the second stitching roller and the main driving roller.

[0015] Based on the above-mentioned embodiments of the present application, by setting the gap size from the first pressing roller to the main drive roller to be the same as the gap size from the second pressing roller to the main drive roller, when the first pressing roller and the second pressing roller respectively press the electrode sheet, the forces exerted by the first pressing roller and the second pressing roller on the electrode sheet are roughly equal, thereby ensuring that the overall force on the electrode sheet is relatively uniform, and reducing the possibility of bulging or damage during the transportation of the electrode sheet.

[0016] In some embodiments, the length of the first pressing roller along the axial direction is greater than the width of the pole piece, and the length of the second pressing roller along the axial direction is greater than the width of the pole piece.

[0017] Based on the above-mentioned embodiments of the present application, by setting the lengths of the first pressing roller and the second pressing roller in the axial direction to be greater than the width of the pole piece, the first pressing roller and the second pressing roller can cover the entire width range of the pole piece when pressing the pole piece, thereby avoiding the problem of uneven force in the width direction of the pole piece due to only part of the pole piece being pressed.

[0018] In some embodiments, the electrode conveying structure further comprises a mounting frame, wherein the main driving roller, the first pressing roller and the second pressing roller are all rotatably mounted on the mounting frame, and at least one of the first pressing roller and the second pressing roller is detachably connected to the mounting frame.

[0019] Based on the above-described embodiments of the present application, the provision of a mounting bracket facilitates the installation and fixation of the main drive roller and the various pressure rollers. Furthermore, by detachably connecting one of the first and second pressure rollers to the mounting bracket, the distance between the first and second pressure rollers can be adjusted, thereby adjusting the contact area between the pole piece and the main drive roller when in a taut state.

[0020] In some embodiments, the mounting frame includes two mounting plates, which are disposed opposite each other and fixedly connected. The mounting plates are provided with mounting grooves, which are arc-shaped structures centered on the axis of the main drive roller. The mounting grooves on the two mounting plates are disposed opposite each other. An end portion of at least one of the first lamination roller and the second lamination roller is capable of sliding along the mounting groove.

[0021] Based on the above-mentioned embodiments of the present application, by providing a mounting groove, at least one of the first lamination roller and the second lamination roller can slide along the mounting groove, thereby achieving distance adjustment between the first lamination roller and the second lamination roller.

[0022] In some embodiments, the mounting frame includes two mounting plates, which are disposed opposite each other and fixedly connected. The mounting plates are provided with a plurality of mounting holes, wherein a line connecting the axes of the plurality of mounting holes is adapted to fit an arc centered on the axis of the main drive roller. The plurality of mounting holes on the two mounting plates are disposed in a corresponding manner. An end portion of at least one of the first lamination roller and the second lamination roller is fixed to the mounting hole.

[0023] Based on the above-mentioned embodiments of the present application, by setting mounting holes, when the distance between the first lamination roller and the second lamination roller needs to be adjusted, the distance between the first lamination roller and the second lamination roller can be adjusted by installing and fixing the lamination rollers in different mounting holes.

[0024] According to a second aspect of the present application, a laminating machine is provided, which includes a housing and the above-mentioned pole piece conveying structure, and the pole piece conveying structure is arranged in the housing.

[0025] Based on the above-mentioned embodiments of the present application, the laminating machine provided in the present application includes the above-mentioned electrode conveying structure, and therefore also has the above-mentioned beneficial effects. In order to avoid repetition, it will not be described here.

[0026] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the following detailed description, they are used to explain the present application but do not constitute a limitation of the present application. In the accompanying drawings:

[0028] Figure 1 It is a structural schematic diagram of a pole piece conveying structure provided in one embodiment of the present application.

[0029] Figure 2 It is a structural schematic diagram of a pole piece conveying structure provided in another embodiment of the present application.

[0030] Description of Reference Numerals

[0031] 1. Main driving roller; 2. Pole piece; 31. First pressing roller; 32. Second pressing roller; 4. Mounting plate; 41. Mounting slot; 42. Mounting hole. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without making any creative efforts shall fall within the scope of protection of the present application.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0036] In the description of this application, it should be noted that, unless otherwise stated, the terms "inner" and "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0038] During the production and processing of power batteries, the pole sheet material rolls need to be transported, cut, stacked and other processes. In the prior art, when the pole sheet material rolls are transported, the conveying process is generally achieved by driving the pole sheet material rolls to move through a rotating roller structure. In the specific conveying process, the rotating roller structure usually includes a pressure roller and a main roller. The pole sheet material roll is arranged between the pressure roller and the main roller. The two rollers press the pole sheet material rolls and rotate and transport them at the same time. In addition, the stacking machine has a fast conveying and stacking speed during use. The slicing speed can usually reach 150 pieces per minute, and the length of the pole sheet after slicing is usually around 290 mm. In this case, the main roller in the conveying structure needs to be started and stopped frequently to meet the slicing and stacking requirements.

[0039] However, when the above structure is in use, the contact area between the electrode material roll and the roller structure is limited to the position where the pressure roller and the main roller are tangent, resulting in a small contact area between the roller structure and the electrode material roll. Therefore, when the main roller is started, it is easy to cause uneven force on the electrode material roll, which in turn causes bulging or damage to the electrode material roll, affecting the subsequent production and processing quality.

[0040] In order to solve the above problems in the prior art, according to the first aspect of the present application, an embodiment of the present application provides a pole piece conveying structure. Figure 1 As shown in the figure, the electrode sheet conveying structure includes a main drive roller 1 and at least two pressure rollers. The main drive roller 1 contacts the electrode sheet 2 to drive the electrode sheet 2 to complete the conveying. At least two pressure rollers are arranged along the circumference of the main drive roller 1, with the electrode sheet 2 located between the pressure rollers and the main drive roller 1. At least two pressure rollers are tangential to the main drive roller 1 to force the electrode sheet 2 into contact with the main drive roller 1.

[0041] Based on the above-mentioned embodiments of the present application, by setting at least two pressure rollers, compared with the method of setting only one pressure roller and one main drive roller 1 in the prior art, the multiple pressure rollers in the above-mentioned technical scheme in the present application can press the pole piece 2 so that the pole piece 2 contacts the main drive roller 1, thereby increasing the contact area between the pole piece 2 and the main drive roller 1.

[0042] Furthermore, in this application, by setting up multiple pressure rollers, the pole piece 2 can also be tightened. The tightened pole piece 2 can better fit with the arc surface structure of the main drive roller 1, thereby further increasing the contact area between the pole piece 2 and the main drive roller 1.

[0043] In summary, through the above-mentioned settings of the present application, the contact area between the electrode 2 and the main drive roller 1 can be increased during the transportation of the electrode 2, thereby making the force on the electrode 2 more uniform when the main drive roller 1 rotates, reducing the possibility of bulging or damage during the transportation of the electrode 2, and thus improving the subsequent production and processing quality of the electrode 2.

[0044] Specifically, this application does not impose any specific restrictions on the power source structure of the main drive roller 1. In actual use, the main drive roller 1 can use any suitable power source. For example, the main drive roller 1 can be driven directly by a motor, or a transmission structure such as a gear set can be added between the motor and the main drive roller 1. The specific configuration can be based on the specific structure of the stacking machine and the power requirements of the main drive roller 1.

[0045] Meanwhile, in the present application, the main drive roller 1 and the pressure roller may be made of any suitable material. For example, the main drive roller 1 and the pressure roller may both be made of metal, and a coating, such as a chrome coating, may be provided on the outside of the main drive roller 1 and the pressure roller to enhance the surface hardness of the main drive roller 1 and the pressure roller and reduce surface wear during use.

[0046] In addition, it should be noted that in this application, the aforementioned tangent relationship between the pressure roller and the main drive roller 1 refers to a tendency for the two to be tangential, thereby squeezing and clamping the electrode sheet 2 between them, rather than direct contact between the two. In specific use, a certain gap should be left between the pressure roller and the main drive roller 1 for the electrode sheet 2 to pass through.

[0047] In the present application, at least two pressure rollers are provided. For example, the number of pressure rollers may be two, three, four or even more.

[0048] refer to Figure 1 As shown in , in an exemplary embodiment provided in the present application, two pressing rollers are provided, and the two pressing rollers are respectively provided as a first pressing roller 31 and a second pressing roller 32. The first pressing roller 31 and the second pressing roller 32 are respectively tangential to the main driving roller 1.

[0049] Based on the above-mentioned embodiments of the present application, when there are specifically two pressing rollers, the two pressing rollers are specifically divided into a first pressing roller 31 and a second pressing roller 32. The first pressing roller 31 and the second pressing roller 32 work together to tighten the pole piece 2 so that the pole piece 2 area between the two can contact the main drive roller 1, thereby increasing the contact area between the pole piece 2 and the main drive roller 1.

[0050] Furthermore, in some embodiments of the present application, the axis of the first pressing roller 31 may be parallel to the axis of the main driving roller 1 , and the axis of the second pressing roller 32 may be parallel to the axis of the main driving roller 1 .

[0051] Based on the above-mentioned embodiment of the present application, by setting the axis of the first pressing roller 31 parallel to the axis of the main drive roller 1, the gap between the first pressing roller 31 and the main drive roller 1 in the axial direction is kept fixed, so that when the first pressing roller 31 presses the pole piece 2, the force applied to the pole piece 2 in the axial direction of the first pressing roller 31 is more uniform. Similarly, by setting the axis of the second pressing roller 32 parallel to the axis of the main drive roller 1, the force applied to the pole piece 2 in the axial direction of the second pressing roller 32 is more uniform. This further reduces the possibility of bulging or damage to the pole piece 2 during transportation.

[0052] refer to Figure 1 As shown in , in some embodiments of the present application, the line between the axis of the first lamination roller 31 and the axis of the main driving roller 1 forms a first connecting surface, and the line between the axis of the second lamination roller 32 and the axis of the main driving roller 1 forms a second connecting surface, and the first connecting surface and the second connecting surface have an angle α1, 45°≤α1≤90°.

[0053] Based on the above-mentioned embodiment of the present application, when two pressure rollers are provided, the arc surface area of ​​the main drive roller 1 corresponding to the angle α1 between the first connecting surface and the second connecting surface is the contact area between the pole piece 2 and the main drive roller 1 in the tensioned state. Therefore, by limiting the angle α1 between the first connecting surface and the second connecting surface, the contact area between the pole piece 2 and the main drive roller 1 can also be limited, thereby preventing the contact area from being too large or too small, which may affect the driving effect.

[0054] Specifically, when the angle α1 between the first connecting surface and the second connecting surface is too large, for example, when α1 is set to 180°, under the pressure of the first pressing roller 31 and the second pressing roller 32, half of the outer wall of the main driving roller 1 is in contact with the pole piece 2. At this time, the contact area between the pole piece 2 and the main driving roller 1 can meet the requirements, and the force on the pole piece 2 is also relatively uniform. However, at this time, the friction between the pole piece 2 and the main driving roller 1 may be too large, which increases the wear of the two, not only affecting the use of the pole piece conveying structure, but also affecting the processing quality of the pole piece 2.

[0055] When the angle α1 between the first connecting surface and the second connecting surface is too small, for example, when α1 is set to 20°, under the pressure of the first pressing roller 31 and the second pressing roller 32, the pole piece 2 between the first pressing roller 31 and the second pressing roller 32 can contact the main driving roller 1, but because the angle α1 is relatively small at this time, the contact area between the pole piece 2 and the main driving roller 1 still cannot meet the contact requirements, which will still cause uneven force on the pole piece 2.

[0056] Furthermore, in some embodiments of the present application, the gap size between the first pressing roller 31 and the main driving roller 1 is the same as the gap size between the second pressing roller 32 and the main driving roller 1 .

[0057] Based on the above-mentioned embodiments of the present application, by setting the gap size from the first pressing roller 31 to the main drive roller 1 to be the same as the gap size from the second pressing roller 32 to the main drive roller 1, when the first pressing roller 31 and the second pressing roller 32 respectively press the electrode 2, the forces exerted by the first pressing roller 31 and the second pressing roller 32 on the electrode 2 are roughly equal, thereby ensuring that the overall force on the electrode 2 is relatively uniform, and reducing the possibility of bulging or damage to the electrode 2 during transportation.

[0058] Specifically, when the gap distance between the first pressing roller 31 and the main drive roller 1 is different from the gap size between the second pressing roller 32 and the main drive roller 1, for example, the gap distance between the first pressing roller 31 and the main drive roller 1 is smaller than the gap size between the second pressing roller 32 and the main drive roller 1, then the first pressing roller 31 exerts a greater pressure on the pole piece 2 at this time. Therefore, the driving force of the pole piece 2 at the cooperation position of the first pressing roller 31 and the main drive roller 1 is greater, which leads to uneven force on the pole piece 2, and damage or bulging may occur.

[0059] In some embodiments of the present application, the length of the first pressing roller 31 along the axial direction is greater than the width of the pole piece 2 , and the length of the second pressing roller 32 along the axial direction is greater than the width of the pole piece 2 .

[0060] Based on the above-mentioned embodiments of the present application, by setting the lengths of the first pressing roller 31 and the second pressing roller 32 along the axial direction to be greater than the width of the pole piece 2, the first pressing roller 31 and the second pressing roller 32 can cover the entire width range of the pole piece 2 when pressing the pole piece 2, thereby avoiding the problem of uneven force in the width direction of the pole piece 2 due to only part of the pole piece 2 being pressed.

[0061] Specifically, when the first pressing roller 31 and the second pressing roller 32 cooperate with the main drive roller 1, when the axial length of the first pressing roller 31 and the second pressing roller 32 is less than the width of the pole piece 2, the first pressing roller 31 and the second pressing roller 32 are usually set in the middle of the main drive roller 1. Therefore, when pressing, they also directly act on the middle area of ​​the pole piece 2. At this time, the two sides of the pole piece 2 will be unevenly stressed compared to the middle. Therefore, by setting the axial length of the first pressing roller 31 and the second pressing roller 32 to be greater than the width of the pole piece 2, the pole piece 2 can be stressed as a whole in the width direction during compression, making the stress on the pole piece 2 more uniform.

[0062] refer to Figure 1 and Figure 2 As shown in , in some embodiments of the present application, the electrode conveying structure may further include a mounting frame, and the main driving roller 1, the first pressing roller 31, and the second pressing roller 32 are all rotatably mounted on the mounting frame. At least one of the first pressing roller 31 and the second pressing roller 32 is detachably connected to the mounting frame.

[0063] Based on the above-described embodiment of the present application, the installation of the mounting frame facilitates the installation and fixation of the main drive roller 1 and the various pressure rollers. Furthermore, by detachably connecting one of the first and second pressure rollers 31, 32 to the mounting frame, the distance between the first and second pressure rollers 31, 32 can be adjusted, thereby adjusting the contact area between the pole piece 2 and the main drive roller 1.

[0064] In the present application, the specific structure of the mounting frame can be selected from any appropriate setting to achieve a detachable connection between the mounting frame and the first lamination roller 31 or the second lamination roller 32, thereby achieving adjustment of the distance between the first lamination roller 31 and the second lamination roller 32.

[0065] refer to Figure 1 As shown in FIG. , in an exemplary embodiment provided herein, the mounting frame may include two mounting plates 4, which are positioned opposite each other and fixedly connected. Each mounting plate 4 is provided with a mounting groove 41, which is an arc-shaped structure centered on the axis of the main drive roller 1. The mounting grooves 41 on the two mounting plates 4 are arranged facing each other. The end of at least one of the first and second laminating rollers 31 and 32 can slide along the mounting groove 41.

[0066] Based on the above-mentioned embodiment of the present application, by providing the mounting groove 41, at least one of the first pressing roller 31 and the second pressing roller 32 can slide along the mounting groove 41. For example, the first pressing roller 31 can be directly fixed between the two mounting plates 4, while the second pressing roller 32 can slide along the mounting groove 41. When the second pressing roller 32 slides to the appropriate position, the second pressing roller 32 can be fixed to the mounting plate 4 by tightening bolts or the like. For another example, both the first pressing roller 31 and the second pressing roller 32 can slide along the mounting groove 41. In this case, the positions of both can be flexibly adjusted. After the adjustment is completed, they are also fixed to the mounting plate 4 by tightening bolts or the like. Thus, the distance between the first pressing roller 31 and the second pressing roller 32 can be adjusted in the above-mentioned manner.

[0067] Alternatively, in some other embodiments provided in this application, reference is made to Figure 2 As shown in , the mounting frame may further include two mounting plates 4, which are arranged opposite each other and fixedly connected. The mounting plates 4 are provided with multiple mounting holes 42. The line connecting the axes of the multiple mounting holes 42 can fit into an arc centered on the axis of the main drive roller 1. The multiple mounting holes 42 on the two mounting plates 4 are arranged correspondingly. The end of at least one of the first pressing roller 31 and the second pressing roller 32 is fixed to the mounting hole 42.

[0068] Based on the above-mentioned embodiment of the present application, by providing mounting holes 42, when it is necessary to adjust the distance between the first laminating roller 31 and the second laminating roller 32, the distance between the first laminating roller 31 and the second laminating roller 32 can be adjusted by installing and fixing the laminating rollers in different mounting holes 42. For example, the first laminating roller 31 can be directly fixed between the two mounting plates 4, and the second laminating roller 32 can be adjusted between different mounting holes 42. Alternatively, the positions of the first laminating roller 31 and the second laminating roller 32 can be adjusted at the same time. At the same time, by providing the connecting line between the mounting holes 42, it can fit into the arc centered on the axis of the main drive roller 1, so that the distance from each mounting hole 42 to the axis of the main drive roller 1 remains consistent, thereby making the distance between the first laminating roller 31 and the second laminating roller 32 and the main drive shaft remain consistent before and after adjustment.

[0069] Furthermore, in the present application, the specific number of mounting holes 42 can be set according to the adjustment range of the first pressing roller 31 and the second pressing roller 32. For example, when the adjustable range of the included angle α1 between the first connecting surface and the second connecting surface is between 30° and 90°, four mounting holes 42 can be set along the arc direction at intervals of 30°.

[0070] Specifically, based on the above-mentioned configuration of the present application, the distance between the first lamination roller 31 and the second lamination roller 32 can be adjusted. During the specific production process, in order to ensure that the force on the pole piece 2 remains uniform before and after the adjustment, the installation of the first lamination roller 31 and the second lamination roller 32 can be calibrated after the adjustment. The calibration ensures the parallelism between the first lamination roller 31, the second lamination roller 32 and the main drive roller 1, and at the same time ensures that the gap size between the first lamination roller 31 and the main drive roller 1 is consistent with the gap size between the second lamination roller 32 and the main drive roller 1.

[0071] Furthermore, in the present application, the distance between the first laminating roller 31 and the second laminating roller 32 is adjusted by providing a mounting groove 41 or a mounting hole 42 on the mounting plate 4. During the specific adjustment process, the positions of the first laminating roller 31 and the second laminating roller 32 can be adjusted simultaneously, or the position of only one of the first laminating roller 31 and the second laminating roller 32 can be adjusted separately.

[0072] In addition, in the two mounting frame structures described above, by providing a mounting groove 41 on the mounting plate 4, the first and second pressing rollers 31, 32 can be adjusted by sliding along the mounting groove 41. In this case, the first and second pressing rollers 31, 32 can be adjusted arbitrarily within the range of the mounting groove 41, but the parallelism of the adjusted first and second pressing rollers 31, 32 requires additional calibration.

[0073] By providing mounting holes 42 on the mounting plate 4, the first and second laminating rollers 31, 32 can be adjusted by fixing their ends in different mounting holes 42. In this case, the first and second laminating rollers 31, 32 can only be adjusted between a few pre-set mounting holes 42, and the adjustable range of the spacing between the first and second laminating rollers 31, 32 is limited. However, the positions of the mounting holes 42 can be calibrated during pre-setting, ensuring that the mounting holes 42 on the two mounting plates 4 are aligned one by one. Therefore, after adjustment, the parallelism between the first and second laminating rollers 31, 32 is still maintained, allowing direct use for conveying without calibration, making the adjustment process simpler and faster.

[0074] In summary, in this application, any suitable structure can be set on the mounting frame and the mounting plate 4 to achieve the adjustment of the relative positions of the first lamination roller 31 and the second lamination roller 32. It can be specifically set according to the specific structure of the lamination machine, and this application does not impose any specific restrictions on this.

[0075] By adjusting the distance between the first pressing roller 31 and the second pressing roller 32 in the manner described above, the contact area between the pole piece 2 and the main drive roller 1 is controlled. Furthermore, in other embodiments of the present invention, the distance between the first pressing roller 31 and the second pressing roller 32 and the main drive roller 1 can also be adjusted. This distance can be adjusted for pole pieces 2 of different materials and thicknesses to accommodate different driving requirements.

[0076] In addition, it should be noted that in the present application, the relative positions of the first pressing roller 31 and the second pressing roller 32 and the main driving roller 1 can be any appropriate setting.

[0077] refer to Figure 1 As shown in , in an exemplary embodiment of the present application, the first laminating roller 31 can be located directly above the main drive roller 1. In this case, the plane formed by the line connecting the axis of the first laminating roller 31 and the axis of the main drive roller 1 is a vertical plane. The second laminating roller 32 is arranged on the side of the main drive roller 1. Through the above arrangement, the pole piece 2 is passed from the incoming direction to between the second laminating roller 32 and the main drive roller 1, and then passes through between the first laminating roller 31 and the main drive roller 1. After passing through, the pole piece 2 naturally maintains a horizontal direction, which is convenient for subsequent slicing and lamination processing.

[0078] On the basis of the above-mentioned embodiments of the present application, according to the second aspect of the present application, a laminating machine is provided, which includes a housing and the above-mentioned pole piece conveying structure, and the pole piece conveying structure is arranged in the housing.

[0079] Based on the above-mentioned embodiments of the present application, the stacking machine provided in the present application includes the above-mentioned electrode conveying structure. Through the above-mentioned settings of the present application, the stacking machine can make the conveying process of the electrode 2 before slicing and stacking more accurate, thereby avoiding bulging or damage of the electrode 2 due to uneven force. Once the electrode 2 is bulged or damaged, it will affect the subsequent slicing and stacking process, and thus affect the quality of the electrode 2 after stacking.

[0080] In addition, it should be noted that the laminating machine in the present application is not limited to the above structure. For example, the laminating machine may also include a slicing module and a laminating module, etc., for completing the slicing and laminating process after the electrode 2 is transported. The specific structure of the slicing module and the laminating module can be selected according to actual use requirements, and this application does not impose specific restrictions on this.

[0081] The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, various simple modifications can be made to the technical solution of the present application, and these simple modifications all fall within the scope of protection of the present application.

[0082] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner unless there is any contradiction. In order to avoid unnecessary repetition, this application will not further describe various possible combinations.

[0083] In addition, the various implementation methods of the present application may be arbitrarily combined, and as long as they do not violate the concept of the present application, they should also be regarded as the contents disclosed in the present application.

Claims

1. A pole piece conveying structure, characterized in that: The electrode conveying structure includes: A main driving roller, in contact with the pole piece, is used to drive the pole piece to move and complete the conveying; At least two pressure rollers, at least two of which are arranged along the circumference of the main drive roller, and the pole pieces pass through between the pressure rollers and the main drive roller in sequence; Wherein, at least two of the pressing rollers are respectively tangential to the main driving roller to press the pole piece into contact with the main driving roller.

2. The electrode conveying structure according to claim 1, characterized in that: There are two pressing rollers, which are respectively configured as a first pressing roller and a second pressing roller; The pole piece passes between the first pressing roller and the main driving roller and between the second pressing roller and the main driving roller.

3. The electrode conveying structure according to claim 2, characterized in that: The axis of the first pressing roller is parallel to the axis of the main driving roller, and the axis of the second pressing roller is parallel to the axis of the main driving roller.

4. The electrode conveying structure according to claim 3, characterized in that: The line between the axis of the first lamination roller and the axis of the main drive roller forms a first connecting surface, and the line between the axis of the second lamination roller and the axis of the main drive roller forms a second connecting surface. There is an angle α1 between the first connecting surface and the second connecting surface, 45°≤α1≤90°.

5. The electrode conveying structure according to claim 3, characterized in that: The gap size between the first pressing roller and the main driving roller is the same as the gap size between the second pressing roller and the main driving roller.

6. The electrode conveying structure according to claim 2, characterized in that: The length of the first pressing roller along the axial direction is greater than the width of the pole piece, and the length of the second pressing roller along the axial direction is greater than the width of the pole piece.

7. The electrode conveying structure according to any one of claims 1 to 6, characterized in that: The electrode conveying structure further comprises a mounting frame, and the main driving roller, the first pressing roller and the second pressing roller are all rotatably mounted on the mounting frame; At least one of the first pressing roller and the second pressing roller is detachably connected to the mounting frame.

8. The electrode conveying structure according to claim 7, characterized in that: The mounting frame includes two mounting plates, which are arranged opposite to each other and fixedly connected; The mounting plate is provided with a mounting groove, which is arranged in an arc-shaped structure centered on the axis of the main driving roller, and the mounting grooves on the two mounting plates are arranged opposite to each other; An end portion of at least one of the first pressing roller and the second pressing roller is capable of sliding along the installation groove.

9. The electrode conveying structure according to claim 7, characterized in that: The mounting frame includes two mounting plates, which are arranged opposite to each other and fixedly connected; The mounting plate is provided with a plurality of mounting holes, and the line connecting the axes of the plurality of mounting holes can fit into an arc centered on the axis of the main driving roller, and the plurality of mounting holes on the two mounting plates are correspondingly provided; An end portion of at least one of the first pressing roller and the second pressing roller is fixed to the mounting hole.

10. A laminating machine, characterized in that: The laminating machine comprises: a housing; and The electrode conveying structure according to any one of claims 1 to 9, wherein the electrode conveying structure is arranged in the shell.

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