Rolling device and battery production system

Abstract

The utility model discloses a rolling device and a battery production system, and belongs to the field of battery production. The rolling device comprises a rolling main body, a pole piece reel, a transmission roller assembly, a first material receiving reel assembly and a paper winding reel assembly, the pole piece reel, the transmission roller assembly, the first material receiving reel assembly and the paper winding shaft assembly are all rotationally connected to the rolling main body, the pole piece reel is used for winding a pole piece of a battery, the transmission roller assembly is used for transmitting the pole piece separated from the pole piece reel to the first material receiving reel assembly, the first material receiving reel assembly is used for winding the pole piece separated from the pole piece reel, and the paper winding shaft assembly is used for winding the pole piece separated from the paper winding shaft assembly. The paper winding shaft assembly is used for winding rewinding paper; before a pole piece on the pole piece reel is transmitted to the first material receiving reel assembly through the transmission roller assembly, the paper winding shaft assembly rotates, and the first material receiving reel assembly rotates, so that at least part of rewinding paper is wound around the first material receiving reel assembly.

Description

Technical Field

[0001] The present application belongs to the field of battery production, and specifically relates to a rolling device and a battery production system. Background Art

[0002] In the process of producing batteries, a rolling device is usually required to produce the battery pole piece by rolling the pole piece on the pole piece reel on the rolling device, and then the pole piece reel is rotated to separate the pole piece from the pole piece reel and wind it on other components. However, in the related art, some pole pieces will be scrapped in the process of producing batteries. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a rolling device and a battery production system, which at least solves the problem that some pole pieces may be scrapped during the battery production process.

[0004] In a first aspect, an embodiment of the present application provides a rolling device, the rolling device comprising: a rolling body, a pole piece reel, a transmission roller assembly, a first material receiving reel assembly and a paper reel assembly;

[0005] The pole piece reel, the transmission roller assembly, the first material receiving reel assembly and the paper reel assembly are all rotatably connected to the rolling body, the pole piece reel is used to wind the pole piece of the battery, the transmission roller assembly is used to transmit the pole piece detached from the pole piece reel to the first material receiving reel assembly, the first material receiving reel assembly is used to wind the pole piece detached from the pole piece reel, and the paper reel assembly is used to wind the rewinding paper;

[0006] Before the pole piece on the pole piece reel is transferred to the first receiving reel assembly through the transmission roller assembly, the paper reel assembly rotates and the first receiving reel assembly rotates so that at least part of the rewinding paper is wound around the first receiving reel assembly.

[0007] Optionally, the rolling device also includes a tensioning roller assembly, which is rotatably connected to the rolling body and is located between the first material receiving reel assembly and the paper winding shaft assembly, and is used to wind and tension the rewinding paper that is detached from the paper winding shaft assembly and wound onto the first material receiving reel assembly.

[0008] Optionally, the first material receiving reel assembly includes a first material receiving reel and a second material receiving reel, and the paper winding shaft assembly includes a first paper winding shaft and a second paper winding shaft;

[0009] The first material receiving reel, the second material receiving reel, the first paper winding shaft and the second paper winding shaft are all rotatably connected to the rolling body;

[0010] The first material receiving reel and the second material receiving reel are both used for winding the pole piece detached from the pole piece reel, the first paper winding shaft and the second paper winding shaft are both used for winding the rewinding paper, the first material receiving reel corresponds to the first paper winding shaft, and the second material receiving reel corresponds to the second paper winding shaft;

[0011] Before the pole piece on the pole piece reel passes through the transmission roller assembly and is transferred to the first material receiving reel and the second material receiving reel, the first paper reel and the first paper reel and the second paper reel are rotated so that part of the rewound paper on the first paper reel is wound around the first material receiving reel, and part of the rewound paper on the second paper reel is wound around the second material receiving reel.

[0012] Optionally, the rolling device further comprises a tensioning roller assembly, wherein the tensioning roller assembly comprises a first tensioning roller and a second tensioning roller;

[0013] The first tensioning roller is located between the first paper winding shaft and the first material receiving reel, and the first tensioning roller is used to wind and tension the rewinding paper detached from the first paper winding shaft and wound onto the first material receiving reel, and the second tensioning roller is used to wind and tension the rewinding paper detached from the second paper winding shaft and wound onto the second material receiving reel.

[0014] Optionally, the rolling device further includes a second receiving reel assembly and a slitting assembly;

[0015] The second receiving reel assembly is rotatably connected to the rolling body, the slitting assembly is located between the second receiving reel assembly and the first receiving reel assembly, and the pole piece on the first receiving reel assembly is transferred to the second receiving reel assembly after being cut by the slitting assembly.

[0016] Optionally, along the axial direction of the take-up reel assembly, the size of the rewinding paper on the first take-up reel assembly is larger than the size of the pole piece.

[0017] Optionally, the rolling device further comprises a first guide roller assembly, a thickness gauge, and a slitting knife;

[0018] The first guide roller assembly, the thickness gauge and the slitting knife are all arranged on the rolling body, and are all located between the pole piece reel and the first receiving reel assembly;

[0019] The first guide roller assembly, the thickness gauge and the slitting knife are distributed in sequence and at intervals, and the pole piece on the pole piece reel is transferred to the first receiving reel assembly through the first guide roller assembly, the thickness gauge and the slitting knife in sequence.

[0020] Optionally, the rolling device further includes a controller, a first drive assembly, a second drive assembly and a third drive assembly;

[0021] The first drive assembly, the second drive assembly and the third drive assembly are all arranged on the rolling body, the pole piece reel is connected to the first drive assembly, the first drive assembly is used to drive the pole piece reel to rotate, the first material receiving reel assembly is connected to the second drive assembly, the second drive assembly is used to drive the first material receiving reel assembly to rotate, the third drive assembly is connected to the paper reel assembly, and the third drive assembly is used to drive the paper reel assembly to rotate;

[0022] Wherein, the first drive component, the second drive component and the third drive component are all electrically connected to the controller, and the controller is used to control the operation of the first drive component, the second drive component and the third drive component.

[0023] Optionally, the rolling device further includes a display panel, wherein the display panel is disposed on the rolling body, and the display panel is electrically connected to the controller.

[0024] In a second aspect, an embodiment of the present application provides a battery production system, wherein the battery production system comprises the rolling device described in any one of the above-mentioned first aspects.

[0025] In an embodiment of the present application, the pole piece reel, the transmission roller assembly, the first material receiving reel assembly and the paper winding shaft assembly are all rotatably connected to the rolling body. Therefore, the pole piece reel, the transmission roller assembly, the first material receiving reel assembly and the paper winding shaft assembly can all rotate relative to the rolling body, and the pole piece can be wound on the pole piece reel, and the rewinding paper can be wound on the paper winding shaft assembly. When the battery needs to be processed, the pole piece reel can be rotated so that the pole piece on the pole piece reel can be detached from the pole piece reel, so that the pole piece is transferred to the first material collection reel assembly along the transmission roller assembly. Before the pole piece on the pole piece reel is transferred to the first material collection reel assembly through the transmission roller assembly, the paper reel assembly can be rotated, and the first material collection reel assembly is rotated, so that the rewinding paper on the paper reel assembly is detached from the paper reel assembly and wound onto the first material collection reel assembly, that is, part of the rewinding paper on the paper reel assembly is wound onto the first material collection reel assembly, and then the pole piece transferred to the front of the first material collection reel assembly is connected with the rewinding paper on the first material collection reel assembly, so that the pole piece is wound on the first material collection reel assembly. That is, in the embodiment of the present application, a paper reel assembly is provided and rewinding paper is wound on the paper reel assembly, so that before the pole piece is wound on the first material receiving reel assembly, the paper reel assembly is rotated so that the rewinding paper is detached from the paper reel assembly and wound onto the first material receiving reel assembly, and then the pole piece is wound on the first material receiving reel assembly, thereby avoiding the problem that the pole piece is directly wound on the first material receiving reel assembly, resulting in damage to part of the pole piece and causing the part of the pole piece to be scrapped. That is, in the embodiment of the present application, the problem of pole piece scrapping can be effectively avoided by the paper reel assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram showing a rolling device provided in an embodiment of the present application;

[0027] Figure 2 A schematic diagram showing a first material receiving reel, a first tensioning roller and a first paper winding shaft provided in an embodiment of the present application;

[0028] Reference numerals:

[0029] 001: pole piece; 002: rewinding paper; 10: pole piece reel; 20: transmission roller assembly; 21: first pressure roller; 22: second pressure roller; 30: first material receiving reel assembly; 31: first material receiving reel; 32: second material receiving reel; 40: paper reel assembly; 41: first paper reel; 42: second paper reel; 50: tensioning roller assembly; 51: first tensioning roller; 52: second tensioning roller; 60: first guide roller assembly; 61: first guide roller; 70: thickness gauge; 80: slitting knife; 90: second guide roller assembly; 91: second guide roller; 100: rubber roller assembly; 101: first rubber roller; 102: second rubber roller. DETAILED DESCRIPTION

[0030] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] like Figure 1 and Figure 2 As shown, the rolling device includes: a rolling body (not shown in the figure), a pole piece reel 10, a transmission roller assembly 20, a first receiving reel assembly 30 and a paper reel assembly 40.

[0034] The pole piece reel 10, the transmission roller assembly 20, the first material receiving reel assembly 30 and the paper reel assembly 40 are all rotatably connected to the rolling body, the pole piece reel 10 is used to wind the pole piece 001 of the battery, the transmission roller assembly 20 is used to transmit the pole piece 001 detached from the pole piece reel 10 to the first material receiving reel assembly 30, the first material receiving reel assembly 30 is used to wind the pole piece 001 detached from the pole piece reel 10, and the paper reel assembly 40 is used to wind the rewinding paper 002; before the pole piece 001 on the pole piece reel 10 is transferred to the first material receiving reel assembly 30 through the transmission roller assembly 20, the paper reel assembly 40 rotates, and the first material receiving reel assembly 30 rotates so that at least part of the rewinding paper 002 is wound around the first material receiving reel assembly 30.

[0035] In the embodiment of the present application, the pole piece reel 10, the transmission roller assembly 20, the first material receiving reel assembly 30 and the paper winding shaft assembly 40 are all rotatably connected to the rolling body. Therefore, the pole piece reel 10, the transmission roller assembly 20, the first material receiving reel assembly 30 and the paper winding shaft assembly 40 can all rotate relative to the rolling body, and the pole piece 001 can be wound on the pole piece reel 10, and the rewinding paper 002 can be wound on the paper winding shaft assembly 40. When the battery needs to be processed, the pole piece reel 10 can be rotated, so that the pole piece 001 on the pole piece reel 10 can be detached from the pole piece reel 10, so that the pole piece 001 is transferred to the first material receiving reel assembly 30 along the transmission roller assembly 20. Before the pole piece 001 on the pole piece reel 10 is transferred to the first material receiving reel assembly 30 through the transmission roller assembly 20, the paper reel assembly 40 can be rotated, and the first material receiving reel assembly 30 is rotated, so that the rewinding paper 002 on the paper reel assembly 40 is detached from the paper reel assembly 40 and wound onto the first material receiving reel assembly 30, that is, part of the rewinding paper 002 on the paper reel assembly 40 is wound onto the first material receiving reel assembly 30, and then the pole piece 001 transferred to the front of the first material receiving reel assembly 30 is connected with the rewinding paper 002 on the first material receiving reel assembly 30, so that the pole piece 001 is wound onto the first material receiving reel assembly 30. That is, in the embodiment of the present application, by providing a winding shaft assembly 40 and winding the rewinding paper 002 on the winding shaft assembly 40, before the pole piece 001 is wound on the first material receiving reel assembly 30, the winding shaft assembly 40 is rotated to make the rewinding paper 002 detach from the winding shaft assembly 40 and be wound onto the first material receiving reel assembly 30, and then the pole piece 001 is wound onto the first material receiving reel assembly 30, thereby avoiding the problem that the pole piece 001 is directly wound on the first material receiving reel assembly 30, resulting in damage to part of the pole piece 001 and causing the part of the pole piece 001 to be scrapped. That is, in the embodiment of the present application, the winding shaft assembly 40 can be used to effectively avoid the problem of scrapping the pole piece 001.

[0036] In addition, in some embodiments, the rolling device may further include a tensioning roller assembly 50, which is rotatably connected to the rolling body, and the tensioning roller assembly 50 is located between the first material receiving reel assembly 30 and the paper winding shaft assembly 40, and the tensioning roller assembly 50 is used to wind and tension the rewinding paper 002 that is detached from the paper winding shaft assembly 40 and wound onto the first material receiving reel assembly 30.

[0037] Since the tension roller assembly 50 is rotatably connected to the rolling body, and the tension roller assembly 50 is located between the first receiving reel assembly 30 and the paper winding shaft assembly 40, when the paper winding shaft assembly 40 rotates and the first receiving reel assembly 30 rotates, so that the rewinding paper 002 on the paper winding shaft assembly 40 is separated from the paper winding shaft assembly 40 and wound onto the first receiving reel assembly 30, the rewinding paper 002 separated from the paper winding shaft assembly 40 can be wound around the tension roller assembly 50, so that the tension roller assembly 50 tensions the rewinding paper 002, so that the rewinding paper 002 is conveniently wound onto the first receiving reel assembly 30. That is, by providing the tension roller assembly 50, it can be ensured that the rewinding paper 002 separated from the paper winding shaft assembly 40 is tensioned by the tension roller assembly 50, so that the rewinding paper 002 is conveniently wound onto the first receiving reel assembly 30.

[0038] In addition, in some embodiments, the first material receiving reel assembly 30 may include a first material receiving reel 31 and a second material receiving reel 32, and the paper winding reel assembly 40 includes a first paper winding reel 41 and a second paper winding reel 42; the first material receiving reel 31, the second material receiving reel 32, the first paper winding reel 41 and the second paper winding reel 42 are all rotatably connected to the rolling body; the first material receiving reel 31 and the second material receiving reel 32 are both used to wind the pole piece 001 detached from the pole piece reel 10, and the first paper winding reel 41 and the second paper winding reel 42 are both used for winding and rewinding Paper 002, the first material receiving reel 31 corresponds to the first paper winding reel 41, and the second material receiving reel 32 corresponds to the second paper winding reel 42; before the pole piece 001 on the pole piece reel 10 can be transferred to the first material receiving reel 31 and the second paper winding reel 32 through the transmission roller assembly 20, the first paper winding reel 41, and the first paper winding reel 41 and the second paper winding reel 42 are rotated to make part of the rewound paper 002 on the first paper winding reel 41 wound around the first material receiving reel 31, and part of the rewound paper 002 on the second paper winding reel 42 wound around the second material receiving reel 32.

[0039] Since the first material receiving reel 31, the second material receiving reel 32, the first paper winding shaft 41 and the second paper winding shaft 42 are all rotatably connected to the rolling body, the first material receiving reel 31, the second material receiving reel 32, the first paper winding shaft 41 and the second paper winding shaft 42 can all rotate relative to the rolling body, and the first material receiving reel 31 corresponds to the first paper winding shaft 41, and the second material receiving reel 32 corresponds to the second paper winding shaft 42, so that the rewinding paper 002 can be wound on the first paper winding shaft 41 and the rewinding paper 002 can be wound on the second paper winding shaft 42. During the battery production process, once the pole piece reel 10 rotates, the pole piece 001 is transferred to the first material collection reel 31 and the second material collection reel 32, and before the pole piece 001 is wound on the first material collection reel 31 and the second material collection reel 32, the first paper reel 41, the second paper reel 42, the first material collection reel 31 and the second material collection reel 32 can be rotated, so that the rewinding paper 002 on the first paper reel 41 is detached from the first paper reel 41 and wound on the first material collection reel 31, and the rewinding paper 002 on the second paper reel 42 is detached from the second paper reel 42 and wound on the second material collection reel 32, and then the pole piece 001 is connected to the first paper reel 41, the second paper reel 42 and the second material collection reel 32 respectively. The rewinding paper 002 on the material receiving reel 31 and the rewinding paper 002 on the second material receiving reel 32, so that the pole piece 001 wound on the first material receiving reel 31 is pulled by the rewinding paper 002 to be wound around the first material receiving reel 31, and the rewinding paper 002 on the first material receiving reel 31 can also block the pole piece 001 to prevent the pole piece 001 from directly contacting the first material receiving reel 31, and the pole piece 001 wound on the second material receiving reel 32 is pulled by the rewinding paper 002 to be wound around the second material receiving reel 32, and the rewinding paper 002 on the second material receiving reel 32 can also block the pole piece 001 to prevent the pole piece 001 from directly contacting the second material receiving reel 32. That is, by setting the first paper winding shaft 41 and the second paper winding shaft 42, the rewinding paper 002 on the first paper winding shaft 41 can be wound onto the first material receiving reel 31, and the rewinding paper 002 on the second paper winding shaft 42 can be wound onto the second material receiving reel 32, thereby effectively avoiding the problem that the pole piece 001 is directly wound onto the first material receiving reel 31 and the second material receiving reel 32, causing the pole piece 001 to be scrapped.

[0040] In addition, in some embodiments, the rolling device may further include a tensioning roller assembly 50, the tensioning roller assembly 50 includes a first tensioning roller 51 and a second tensioning roller 52; the first tensioning roller 51 is located between the first paper winding shaft 41 and the first material receiving reel 31, the first tensioning roller 51 is used to wind and tension the rewinding paper 002 detached from the first paper winding shaft 41 and wound onto the first material receiving reel 31, and the second tensioning roller 52 is used to wind and tension the rewinding paper 002 detached from the second paper winding shaft 42 and wound onto the second material receiving reel 32.

[0041] Since the first tensioning roller 51 is located between the first paper winding shaft 41 and the first material receiving reel 31, once the first paper winding shaft 41 and the first material receiving reel 31 rotate, the rewinding paper 002 on the first paper winding shaft 41 is detached from the first paper winding shaft 41 and wound onto the first material receiving reel 31, the rewinding paper 002 can be wound around the first tensioning roller 51, so that the first tensioning roller 51 tensions the rewinding paper 002, making it easier for the rewinding paper 002 to be wound onto the first material receiving reel 31. Similarly, since the second tensioning roller 52 is located between the second paper reel 42 and the second material receiving reel 32, once the second paper reel 42 and the second material receiving reel 32 rotate, so that the rewinding paper 002 on the second paper reel 42 is detached from the second paper reel 42 and wound onto the second material receiving reel 32, the rewinding paper 002 can be wound around the second tensioning roller 52, so that the second tensioning roller 52 tensions the rewinding paper 002, so that the rewinding paper 002 is conveniently wound onto the second material receiving reel 32. That is, by providing the first tensioning roller 51 and the second tensioning roller 52, the rewinding paper 002 can be conveniently wound onto the first material receiving reel 31 and the second material receiving reel 32.

[0042] In addition, in some embodiments, the rolling device may also include a second receiving reel assembly (not shown in the figure) and a slitting assembly (not shown in the figure); the second receiving reel assembly is rotatably connected to the rolling body, and the slitting assembly is located between the second receiving reel assembly and the first receiving reel assembly 30. The pole piece 001 on the first receiving reel assembly 30 is cut by the slitting assembly and then transferred to the second receiving reel assembly.

[0043] Since the second material receiving reel assembly is rotatably connected to the rolling body, and the slitting assembly is located between the second material receiving reel assembly and the first material receiving reel assembly 30, during the production process of the battery, once enough electrode pieces 001 are wound on the first material receiving reel assembly 30, the second material receiving reel assembly can be rotated, and the first material receiving reel assembly 30 can be rotated in the opposite direction, so that the electrode piece 001 on the first material receiving reel assembly 30 is detached from the first material receiving reel 31 and passes through the slitting assembly, which slits the electrode piece 001, thereby reducing the size of the electrode piece 001, and the electrode piece 001 after slitting is transferred to the second material receiving reel assembly, so as to facilitate the subsequent processing of the battery based on the electrode piece 001 with a smaller size.

[0044] It should be noted that when the first material receiving reel assembly 30 includes the first material receiving reel 31 and the second material receiving reel 32, at this time, the second material receiving reel assembly can be the third material receiving reel, the fourth material receiving reel, the fifth material receiving reel and the sixth material receiving reel, the slitting assembly includes the first slitting knife 80 and the second slitting knife 80, the third material receiving reel and the fourth material receiving reel correspond to the first material receiving reel 31, the fifth material receiving reel and the sixth material receiving reel correspond to the second material receiving reel 32, and the first slitting knife 80 cuts the pole piece 001 detached from the first material receiving reel 31, and the second slitting knife 80 cuts the pole piece 001 detached from the second material receiving reel 32. Through such an arrangement, once the first material receiving reel 31 rotates and the pole piece 001 is detached, the pole piece 001 can pass through the first slitting knife 80, and the first slitting knife 80 cuts the pole piece 001, so that the pole piece 001 is cut into two smaller pole pieces 001, and the two pole pieces 001 after cutting can be respectively wound around the third material receiving reel and the fourth material receiving reel. Similarly, once the second material receiving reel 32 rotates and the pole piece 001 is detached, the pole piece 001 can pass through the second slitting knife 80, and the second slitting knife 80 cuts the pole piece 001, so that the pole piece 001 is cut into two smaller pole pieces 001, and the two pole pieces 001 after cutting can be respectively wound around the fifth material receiving reel and the sixth material receiving reel. For example, the width of the pole piece 001 on the first receiving reel 31 is 100 mm. After being cut by the first slitting knife 80, it is cut into two pole pieces 001 with a width of 50 mm. The two pole pieces 001 are respectively wound onto the third receiving reel and the fourth receiving reel.

[0045] In addition, in some embodiments, along the axial direction of the first take-up reel assembly 30 , the size of the rewinding paper 002 on the first take-up reel assembly 30 may be larger than the size of the pole piece 001 .

[0046] Through such a configuration, once the pole piece 001 is wound onto the first winding reel assembly 30, the pole piece 001 can be effectively blocked by the rewinding paper 002, thereby preventing the pole piece 001 from directly contacting the first winding reel assembly 30. That is, by setting the size of the rewinding paper 002 on the first winding reel assembly 30 to be larger than the size of the pole piece 001, the pole piece 001 can be effectively protected, thereby preventing the pole piece 001 from being scrapped.

[0047] It should be noted that it is sufficient that the size of the rewinding paper 002 is larger than that of the pole piece 001. The specific size of the rewinding paper 002 larger than that of the pole piece 001 is not limited in the embodiment of the present application. For example, along the axial direction of the first take-up reel assembly 30, the two opposite sides of the rewinding paper 002 can be respectively protruded by 5 mm from the two opposite sides of the pole piece 001, so that the pole piece 001 can be effectively blocked by the rewinding paper 002 to avoid direct contact with the first take-up reel assembly 30. Among them, when the first take-up reel assembly 30 includes a first take-up reel 31 and a second take-up reel 32, at this time, the size of the rewinding paper 002 on the first take-up reel 31 is larger than the size of the pole piece 001, and the size of the rewinding paper 002 on the second take-up reel 32 is larger than the size of the pole piece 001.

[0048] In addition, in some embodiments, the rolling device may further include a first guide roller assembly 60, a thickness gauge 70, and a slitting knife 80; the first guide roller assembly 60, the thickness gauge 70, and the slitting knife 80 are all arranged on the rolling body, and are all located between the pole piece reel 10 and the first receiving reel assembly 30; the first guide roller assembly 60, the thickness gauge 70, and the slitting knife 80 are distributed in sequence, and the pole piece 001 on the pole piece reel 10 is sequentially transferred to the first receiving reel assembly 30 through the first guide roller assembly 60, the thickness gauge 70, and the slitting knife 80.

[0049] Since the first guide roller assembly 60, the thickness gauge 70 and the slitting knife 80 are all arranged in the rolling body and are all located between the pole piece reel 10 and the first material receiving reel assembly 30, the pole piece 001 separated from the pole piece reel 10 can be first transferred to the first guide roller assembly 60, and the pole piece 001 is guided by the first guide roller assembly 60, and then the pole piece 001 is transferred to the thickness gauge 70, and then passes through the slitting knife 80, and the slitting knife 80 cuts the larger pole piece 001 into at least two smaller pole pieces 001, and at least two pole pieces 001 are respectively transferred to the first material receiving reel assembly 30. That is, by setting the first guide roller assembly 60, the pole piece 001 can be transferred easily, and the thickness gauge 70 can measure the thickness of the pole piece 001. The existence of the slitting knife 80 allows the pole piece 001 to be effectively cut, so as to facilitate the subsequent further processing of the pole piece 001.

[0050] It should be noted that, in the embodiment of the present application, the transmission roller assembly 20 can roll the pole piece 001 to reduce the thickness of the pole piece 001, and the transmission roller assembly 20 is located between the thickness gauge 70 and the first guide roller assembly 60, so that the pole piece 001 detached from the pole piece reel 10 is first guided by the first guide roller assembly 60 and transferred to the transmission roller assembly 20, and the transmission roller assembly 20 rolls to reduce the thickness of the pole piece 001, and the pole piece 001 with reduced thickness passes through the thickness gauge 70, and then passes through the slitting knife 80, and the slitting knife 80 cuts the pole piece 001, so that the size of the pole piece 001 is reduced, and the larger pole piece 001 is cut into at least two smaller pole pieces 001, and the at least two pole pieces 001 are respectively wound on the first receiving reel 31 and the second receiving reel 32. Among them, the first guide roller assembly 60 can include a plurality of guide rollers, each of which is rotatably connected to the rolling body, and the pole piece 001 is wound around a plurality of guide rollers. In addition, the transmission roller assembly 20 may include a first pressing roller 21 and a second pressing roller 22, and there is a gap between the first pressing roller 21 and the second pressing roller 22, and the pole piece 001 passes through the gap, so that when the first pressing roller 21 and the second pressing roller 22 rotate, the pole piece 001 can be pressed thin, so that the thickness of the pole piece 001 is reduced.

[0051] It should also be noted that, in the embodiment of the present application, when the thickness gauge 70 detects the thickness of the pole piece 001 , once the thickness of the pole piece 001 is greater than the set thickness value, the thickness gauge 70 may issue a prompt message.

[0052] In addition, in the embodiment of the present application, the rolling device may further include a second guide roller assembly 90, the second guide roller assembly 90 is located between the thickness gauge 70 and the transmission roller assembly 20, the second guide roller assembly 90 includes a plurality of second guide rollers 91, and the pole piece 001 passes through the plurality of second guide rollers 91. The rolling device may further include a rubber roller assembly 100, the rubber roller assembly 100 includes a first rubber roller 101 and a second rubber roller 102, there is a gap between the first rubber roller 101 and the second rubber roller 102, the pole piece 001 passes through the gap, the first rubber roller 101 cooperates with the second rubber roller 102, so that the thickness of the pole piece 001 is reduced. Among them, the rubber roller assembly 100 is located between the transmission roller assembly 20 and the thickness gauge 70, and the pole piece 001 passing through the rubber roller assembly 100 is then transferred to the thickness gauge 70. Among them, the material of the first rubber roller 101 and the second rubber roller 102 can be rubber.

[0053] In addition, in some embodiments, the rolling device may further include a controller, a first drive component, a second drive component and a third drive component; the first drive component, the second drive component and the third drive component are all arranged on the rolling body, the pole piece reel 10 is connected to the first drive component, the first drive component is used to drive the pole piece reel 10 to rotate, the first material receiving reel assembly 30 is connected to the second drive component, the second drive component is used to drive the first material receiving reel assembly 30 to rotate, the third drive component is connected to the paper reel assembly 40, and the third drive component is used to drive the paper reel assembly 40 to rotate; wherein the first drive component, the second drive component and the third drive component are all electrically connected to the controller, and the controller is used to control the operation of the first drive component, the second drive component and the third drive component.

[0054] Through such a setting, when the pole piece reel 10, the first material receiving reel assembly 30 and the paper reel assembly 40 need to rotate, the controller can control the first drive assembly, the second drive assembly and the third drive assembly to operate, so that the first drive assembly drives the pole piece reel 10 to rotate, the second drive assembly drives the first material receiving reel assembly 30 to rotate, and the third drive assembly drives the rewinding paper 002 assembly to rotate. That is, by setting the controller, and the controller is electrically connected to the first drive assembly, the second drive assembly and the third drive assembly respectively, it is possible to facilitate the rotation of the pole piece reel 10, the first material receiving reel assembly 30 and the paper reel assembly 40, and realize the automatic transmission of the pole piece 001.

[0055] It should be noted that the first drive component, the second drive component and the third drive component can all be motors, wherein the types of motors can include but are not limited to stepper motors and servo motors.

[0056] When the first material receiving reel assembly 30 includes a first material receiving reel 31 and a second material receiving reel 32, the first material receiving reel 31 can be connected to a second drive assembly, and the second material receiving reel 32 can be connected to a second drive assembly; when the paper winding shaft assembly 40 includes a first paper winding shaft 41 and a second paper winding shaft 42, the first paper winding shaft 41 can be connected to a third drive assembly, and the second paper winding shaft 42 can be connected to a third drive assembly.

[0057] In addition, in the embodiment of the present application, the transmission roller assembly 20 can be connected to the fourth drive assembly, and the fourth drive assembly drives the transmission roller assembly 20 to rotate. When the roller pressing device includes a second material receiving reel assembly, the second material receiving reel assembly can be connected to the fifth drive assembly, and the second material receiving reel assembly can be driven to rotate by the fifth drive assembly.

[0058] In addition, in some embodiments, the rolling device may further include a display panel, which is disposed on the rolling body and is electrically connected to the controller.

[0059] By providing a display panel, an operator can click, slide, and perform other operations on the display panel, thereby sending instructions to the controller, so that the controller controls the operation of corresponding components. That is, by providing a display panel, it is convenient for an operator to control the rolling device.

[0060] It should be noted that the display panel may be an OLED display screen or an LCD display screen. The specific type of the display panel is not limited in the embodiment of the present application.

[0061] In the embodiment of the present application, the pole piece reel 10, the transmission roller assembly 20, the first material receiving reel assembly 30 and the paper winding shaft assembly 40 are all rotatably connected to the rolling body. Therefore, the pole piece reel 10, the transmission roller assembly 20, the first material receiving reel assembly 30 and the paper winding shaft assembly 40 can all rotate relative to the rolling body, and the pole piece 001 can be wound on the pole piece reel 10, and the rewinding paper 002 can be wound on the paper winding shaft assembly 40. When the battery needs to be processed, the pole piece reel 10 can be rotated, so that the pole piece 001 on the pole piece reel 10 can be detached from the pole piece reel 10, so that the pole piece 001 is transferred to the first material receiving reel assembly 30 along the transmission roller assembly 20. Before the pole piece 001 on the pole piece reel 10 is transferred to the first material receiving reel assembly 30 through the transmission roller assembly 20, the paper reel assembly 40 can be rotated, and the first material receiving reel assembly 30 is rotated, so that the rewinding paper 002 on the paper reel assembly 40 is detached from the paper reel assembly 40 and wound onto the first material receiving reel assembly 30, that is, part of the rewinding paper 002 on the paper reel assembly 40 is wound onto the first material receiving reel assembly 30, and then the pole piece 001 transferred to the front of the first material receiving reel assembly 30 is connected with the rewinding paper 002 on the first material receiving reel assembly 30, so that the pole piece 001 is wound onto the first material receiving reel assembly 30. That is, in the embodiment of the present application, by providing a winding shaft assembly 40 and winding the rewinding paper 002 on the winding shaft assembly 40, before the pole piece 001 is wound on the first material receiving reel assembly 30, the winding shaft assembly 40 is rotated to make the rewinding paper 002 detach from the winding shaft assembly 40 and be wound onto the first material receiving reel assembly 30, and then the pole piece 001 is wound onto the first material receiving reel assembly 30, thereby avoiding the problem that the pole piece 001 is directly wound on the first material receiving reel assembly 30, resulting in damage to part of the pole piece 001 and causing the part of the pole piece 001 to be scrapped. That is, in the embodiment of the present application, the winding shaft assembly 40 can be used to effectively avoid the problem of scrapping the pole piece 001.

[0062] An embodiment of the present application provides a battery production system, which includes the rolling device in any of the above embodiments.

[0063] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0064] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A rolling device, characterized in that: The rolling device comprises: a rolling body, a pole piece reel, a transmission roller assembly, a first receiving reel assembly and a paper reel assembly; The pole piece reel, the transmission roller assembly, the first material receiving reel assembly and the paper reel assembly are all rotatably connected to the rolling body, the pole piece reel is used to wind the pole piece of the battery, the transmission roller assembly is used to transmit the pole piece detached from the pole piece reel to the first material receiving reel assembly, the first material receiving reel assembly is used to wind the pole piece detached from the pole piece reel, and the paper reel assembly is used to wind the rewinding paper; Before the pole piece on the pole piece reel is transferred to the first receiving reel assembly through the transmission roller assembly, the paper reel assembly rotates and the first receiving reel assembly rotates so that at least part of the rewinding paper is wound around the first receiving reel assembly.

2. The rolling device according to claim 1, characterized in that: The rolling device also includes a tensioning roller assembly, which is rotatably connected to the rolling body and is located between the first material receiving reel assembly and the paper winding shaft assembly. The tensioning roller assembly is used to wind and tension the rewinding paper that is detached from the paper winding shaft assembly and wound onto the first material receiving reel assembly.

3. The rolling device according to claim 1, characterized in that: The first material receiving reel assembly includes a first material receiving reel and a second material receiving reel, and the paper winding shaft assembly includes a first paper winding shaft and a second paper winding shaft; The first material receiving reel, the second material receiving reel, the first paper winding shaft and the second paper winding shaft are all rotatably connected to the rolling body; The first material receiving reel and the second material receiving reel are both used for winding the pole piece detached from the pole piece reel, the first paper winding shaft and the second paper winding shaft are both used for winding the rewinding paper, the first material receiving reel corresponds to the first paper winding shaft, and the second material receiving reel corresponds to the second paper winding shaft; Before the pole piece on the pole piece reel passes through the transmission roller assembly and is transferred to the first material receiving reel and the second material receiving reel, the first paper reel and the first paper reel and the second paper reel are rotated so that part of the rewound paper on the first paper reel is wound around the first material receiving reel, and part of the rewound paper on the second paper reel is wound around the second material receiving reel.

4. The rolling device according to claim 3, characterized in that: The rolling device further comprises a tension roller assembly, wherein the tension roller assembly comprises a first tension roller and a second tension roller; The first tensioning roller is located between the first paper winding shaft and the first material receiving reel, and the first tensioning roller is used to wind and tension the rewinding paper detached from the first paper winding shaft and wound onto the first material receiving reel, and the second tensioning roller is used to wind and tension the rewinding paper detached from the second paper winding shaft and wound onto the second material receiving reel.

5. The rolling device according to claim 1, characterized in that: The rolling device also includes a second material receiving reel assembly and a slitting assembly; The second receiving reel assembly is rotatably connected to the rolling body, the slitting assembly is located between the second receiving reel assembly and the first receiving reel assembly, and the pole piece on the first receiving reel assembly is transferred to the second receiving reel assembly after being cut by the slitting assembly.

6. The rolling device according to claim 1, characterized in that: Along the axial direction of the first take-up reel assembly, the size of the rewinding paper on the first take-up reel assembly is larger than the size of the pole piece.

7. The rolling device according to claim 1, characterized in that: The rolling device also includes a first guide roller assembly, a thickness gauge, and a slitting knife; The first guide roller assembly, the thickness gauge and the slitting knife are all arranged on the rolling body, and are all located between the pole piece reel and the first receiving reel assembly; The first guide roller assembly, the thickness gauge and the slitting knife are distributed in sequence and at intervals, and the pole piece on the pole piece reel is transferred to the first receiving reel assembly through the first guide roller assembly, the thickness gauge and the slitting knife in sequence.

8. The rolling device according to any one of claims 1 to 7, characterized in that: The rolling device also includes a controller, a first drive assembly, a second drive assembly and a third drive assembly; The first drive assembly, the second drive assembly and the third drive assembly are all arranged on the rolling body, the pole piece reel is connected to the first drive assembly, the first drive assembly is used to drive the pole piece reel to rotate, the first material receiving reel assembly is connected to the second drive assembly, the second drive assembly is used to drive the first material receiving reel assembly to rotate, the third drive assembly is connected to the paper reel assembly, and the third drive assembly is used to drive the paper reel assembly to rotate; Wherein, the first drive component, the second drive component and the third drive component are all electrically connected to the controller, and the controller is used to control the operation of the first drive component, the second drive component and the third drive component.

9. The rolling device according to claim 8, characterized in that: The rolling device further includes a display panel, which is disposed on the rolling body and is electrically connected to the controller.

10. A battery production system, characterized in that: The battery production system comprises the roller pressing device according to any one of claims 1 to 9.

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