Pole piece rolling device

Abstract

The utility model discloses a pole piece rolling device, and belongs to the technical field of battery pole piece processing. The pole piece rolling device comprises a frame body; the rolling assembly is rotationally connected to the frame body, and the rolling assembly is used for rolling a pole piece; the measuring mechanism and the rolling assembly are arranged at an interval, and the measuring mechanism is used for measuring the thickness of the pole piece; the heating mechanism is connected to the frame body in a sliding mode in the length direction of the rolling assembly, and the heating mechanism and the rolling assembly are oppositely arranged in a spaced mode; the processing module is electrically connected to the measuring mechanism and the heating mechanism, the processing module is used for obtaining thickness data of different areas of the pole piece, and if the thickness of a part of the area of the pole piece is too large, the processing module can drive the heating mechanism to slide, and the heating mechanism is used for heating the pole piece. And heating the partial region of the rolling assembly corresponding to the partial region of the pole piece with overlarge thickness.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pole piece processing, in particular to a pole piece rolling device. Background Art

[0002] The pole piece is the core component of the lithium battery. In the prior art, a rolling device is usually used to roll the pole piece to adjust the thickness of the pole piece. The rolling device includes a first roller and a second roller spaced apart from each other. There is a gap between the first roller and the second roller, and the pole piece is passed through the gap to be rolled by the first roller and the second roller, so that the pole piece is rolled into a thin sheet.

[0003] However, during the process of processing the pole piece, the roller will undergo disturbance deformation, which causes the pole piece after rolling to be easily thick in the middle and thin on both sides, affecting the processing yield of the pole piece. Utility Model Content

[0004] The utility model discloses a pole piece rolling device, which solves or at least partially solves the problem in the prior art that the pole piece after rolling is prone to have the defect of being thick in the middle and thin at both sides, thus affecting the processing yield of the pole piece.

[0005] In order to solve the above technical problems, the utility model is achieved as follows:

[0006] The utility model discloses a pole piece rolling device, which comprises: a frame; a rolling assembly, which is rotatably connected to the frame and used for rolling the pole piece; a measuring mechanism, which is spaced apart from the rolling assembly and used for measuring the thickness of the pole piece; a heating mechanism, which is slidably connected to the frame along the length direction of the rolling assembly and spaced apart from the rolling assembly; a processing module, which is electrically connected to the measuring mechanism and the heating mechanism and used for acquiring thickness data of different areas of the pole piece. If the thickness of a part of the pole piece is too large, the processing module can drive the heating mechanism to slide, so as to heat a part of the rolling assembly corresponding to the part of the pole piece with too large thickness.

[0007] Optionally, along the length direction of the rolling assembly, the length of the heating mechanism is smaller than the length of the rolling assembly.

[0008] Optionally, the measuring mechanism includes a support frame and one or more sensors, wherein one sensor is slidably connected to the support frame along the length direction of the rolling assembly, and / or a plurality of sensors are spaced apart along the length direction of the rolling assembly; the sensor is used to detect the thickness of different areas of the pole piece.

[0009] Optionally, the heating mechanism is arranged on a side of the rolling assembly close to or away from the measuring mechanism.

[0010] Optionally, the rolling assembly includes a first roller and a second roller, and the first roller and the second roller are arranged at relative intervals along a first direction and are both rotatably connected to the frame; wherein the rolling assembly and the measuring mechanism are arranged at intervals along a second direction, and the first direction is perpendicular to the second direction.

[0011] Optionally, the heating mechanism includes a first heating mechanism and a second heating mechanism, the first heating mechanism and the second heating mechanism are respectively slidably connected to the frame along the length direction of the rolling assembly, and the first heating mechanism is relatively spaced apart from the first roller, and the second heating mechanism is relatively spaced apart from the second roller.

[0012] Optionally, the first heating mechanism includes a first slide rail and a first heating element, the first slide rail is fixedly connected to the frame, the first heating element is slidably connected to the first slide rail along the length direction of the rolling assembly, and is arranged at a relative interval to the first roller; the second heating mechanism includes a second slide rail and a second heating element, the second slide rail is fixedly connected to the frame, the second heating element is slidably connected to the second slide rail along the length direction of the rolling assembly, and is arranged at a relative interval to the second roller.

[0013] Optionally, the first heating mechanism also includes a first driving member, which is connected to the first heating member; the second heating mechanism also includes a second driving member, which is connected to the second heating member; the processing module is electrically connected to the measuring mechanism, the first driving member and the second driving member, and the processing module is used to obtain the thickness data of the pole piece, and drive the first driving member and / or the second driving member to operate based on the thickness data, so as to drive the first heating member to slide along the first slide rail, and / or the second heating member to slide along the second slide rail.

[0014] Optionally, the first heating element and the second heating element both include at least one of an electromagnetic heating element and an infrared heating element.

[0015] Optionally, along the first direction, the first roller and / or the second roller is movably connected to the frame to adjust the gap between the first roller and the second roller.

[0016] The utility model discloses a pole piece rolling device, which comprises: a frame; a rolling assembly, which is rotatably connected to the frame and used for rolling the pole piece; a measuring mechanism, which is spaced apart from the rolling assembly and used for measuring the thickness of the pole piece; a heating mechanism, which is slidably connected to the frame along the length direction of the rolling assembly and spaced apart from the rolling assembly; a processing module, which is electrically connected to the measuring mechanism and the heating mechanism and used for acquiring thickness data of different areas of the pole piece. If the thickness of a part of the pole piece is too large, the processing module can drive the heating mechanism to slide, so as to heat a part of the rolling assembly corresponding to the part of the pole piece with too large thickness.

[0017] The pole piece rolling device disclosed in the utility model is connected to the frame by sliding the heating mechanism along the length direction of the rolling assembly, and is arranged relative to the rolling assembly. The processing module is electrically connected to the measuring mechanism and the heating mechanism, so as to obtain the thickness data of different areas of the pole piece through the processing module. If the thickness of some areas of the pole piece is too large, the processing module can drive the heating mechanism to slide, so as to heat the partial areas of the rolling assembly corresponding to the partial areas of the pole piece with excessive thickness. The partial areas of the rolling assembly expand due to heat, the pressure on the pole piece increases, and the thickness of the pole piece becomes thinner, so that the thickness of the partial areas of the pole piece can be adjusted to improve the consistency of the thickness of the pole piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A cross-sectional view showing the pole piece rolling device in the embodiment of the utility model along the second direction;

[0019] Figure 2 A cross-sectional view along a first direction of the pole piece rolling device in an embodiment of the utility model is shown.

[0020] Reference numerals:

[0021] 10: frame;

[0022] 20: rolling assembly; 21: first rolling roller; 22: second rolling roller;

[0023] 30: measuring mechanism;

[0024] 40: heating mechanism; 41: first heating mechanism; 411: first slide rail; 412: first heating element; 413: first driving element; 42: second heating mechanism; 421: second slide rail; 422: second heating element; 423: second driving element;

[0025] 50: pole piece;

[0026] A: first direction; B: second direction. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the fixed scope of the utility model.

[0028] It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present invention. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0029] Reference Figure 1 , showing a cross-sectional view of the pole piece rolling device in the embodiment of the utility model along the second direction; referring to Figure 2 , showing a cross-sectional view of the pole piece rolling device along the first direction in an embodiment of the utility model.

[0030] like Figure 1 and Figure 2 As shown, an embodiment of the utility model discloses a pole piece rolling device, which includes: a frame 10; a rolling assembly 20, which is rotatably connected to the frame 10 and is used to roll the pole piece 50; a measuring mechanism 30, which is spaced apart from the rolling assembly 20 and is used to measure the thickness of the pole piece 50; a heating mechanism 40, which is slidably connected to the frame 10 along the length direction of the rolling assembly 20 and is spaced apart from the rolling assembly 20; a processing module, which is electrically connected to the measuring mechanism 30 and the heating mechanism 40, and is used to obtain thickness data of different areas of the pole piece 50. If the thickness of some areas of the pole piece 50 is too large, the processing module can drive the heating mechanism 40 to slide to heat some areas of the rolling assembly 20.

[0031] The length direction of the rolling assembly 20 is the direction of its rotation axis, which is perpendicular to the first direction and the second direction.

[0032] The pole piece rolling device disclosed in the embodiment of the utility model is used for rolling the pole piece 50 of a lithium battery to adjust the thickness of the pole piece 50 so that the thickness consistency of the pole piece 50 is high.

[0033] like Figure 1 and Figure 2As shown, the pole piece rolling device disclosed in the embodiment of the utility model comprises a frame 10, a rolling assembly 20, a measuring mechanism 30, a heating mechanism 40 and a processing module. Among them, the frame 10 is used to support the pole piece rolling device.

[0034] The roller assembly 20 in the embodiment of the utility model is rotatably connected to the frame 10. Specifically, one end of the roller assembly 20 can be rotatably connected to the frame 10, so that the roller assembly 20 can rotate relative to the frame 10. Of course, the two ends of the roller assembly 20 can also be connected to the frame 10 respectively, so that the roller assembly 20 can rotate more smoothly relative to the frame 10. In this regard, the embodiment of the utility model does not make specific restrictions, and in actual applications, technicians can set it according to needs.

[0035] Exemplarily, the rolling assembly 20 in the embodiment of the utility model may include a first roller 21 and a second roller 22. The first roller 21 and the second roller 22 are rotatably connected to the frame 10 at both ends, and the first roller 21 and the second roller 22 are spaced apart along the first direction A, and there is a gap between the first roller 21 and the second roller 22. The pole piece 50 is passed through the gap, so that the pole piece 50 can be rolled by the first roller 21 and the second roller 22.

[0036] like Figure 1 and Figure 2 As shown, the measuring mechanism 30 and the rolling assembly 20 in the embodiment of the utility model are spaced apart along the second direction B so that the pole piece 50 after being rolled by the rolling assembly 20 can flow to the measuring mechanism 30 to measure the thickness of the pole piece 50 through the measuring mechanism 30 .

[0037] For example, the measuring mechanism 30 may include a sensor to measure the thickness of the pole piece 50 through the sensor. Of course, in the embodiment of the utility model, there is no limitation on the specific method of measuring the thickness of the pole piece 50 by the measuring mechanism 30, and any method that can measure the thickness of the pole piece 50 belongs to the protection scope of the utility model. In actual use, technicians can select a suitable measuring method according to needs.

[0038] like Figure 1 and Figure 2 As shown, the heating mechanism 40 in the embodiment of the utility model is arranged on the side of the rolling assembly 20 away from the measuring mechanism 30. The heating mechanism 40 is slidably connected to the frame 10 along the length direction of the rolling assembly 20, and the heating mechanism 40 and the rolling assembly 20 are arranged relative to each other so that the heating mechanism 40 can heat the rolling assembly 20.

[0039] The processing module in the embodiment of the utility model is electrically connected to the measuring mechanism 30 and the heating mechanism 40. The thickness data of different areas of the pole piece 50 are obtained through the processing module. If the thickness of some areas of the pole piece 50 is too large, the processing module can drive the heating mechanism 40 to slide along the length direction of the rolling assembly 20, so as to heat the partial areas of the rolling assembly 20 corresponding to the partial areas of the pole piece 50 with excessive thickness through the heating mechanism 40. The partial areas of the rolling assembly 20 are heated and expanded, and the gaps between the partial areas of the rolling assembly 20 are reduced. In the process of the pole piece 50 passing through the gap, the pressure is increased, and the thickness of the pole piece 50 becomes thinner, so that the thickness of the partial areas of the pole piece 50 can be adjusted to improve the consistency of the thickness of the pole piece 50.

[0040] Alternatively, if Figure 1 and Figure 2 As shown, along the length direction of the rolling assembly 20 , the length of the heating mechanism 40 is smaller than the length of the rolling assembly 20 .

[0041] In the embodiment of the present utility model, Figure 1 and Figure 2 As shown, along the length direction of the rolling assembly 20, the length of the heating mechanism 40 can be set to be smaller than the length of the rolling assembly 20, so that the heating mechanism 40 can heat a partial area of ​​the rolling assembly 20. The partial area of ​​the rolling assembly 20 is heated and expanded, and the gap between the partial areas of the rolling assembly 20 becomes smaller. When the pole piece 50 passes through the gap, the pressure increases, and the thickness of the pole piece 50 becomes thinner, so that the thickness of the partial area of ​​the pole piece 50 can be adjusted, and the thickness consistency of the pole piece 50 is improved.

[0042] For example, along the length direction of the rolling assembly 20, the length of the heating mechanism 40 can be set to 1 / 10, 1 / 15, 1 / 20, etc. of the length of the rolling assembly 20. Of course, the above are only individual examples of the embodiments of the utility model and are not intended to be limiting of the utility model. In actual applications, technicians can set the length of the heating mechanism 40 as needed.

[0043] Optionally, the measuring mechanism 30 includes a support frame and one or more sensors, wherein one sensor is slidably connected to the support frame along the length direction of the rolling assembly 20, and / or multiple sensors are spaced apart along the length direction of the rolling assembly 20; the sensor is used to detect the thickness of different areas of the pole piece 50.

[0044] In the embodiment of the utility model, the thickness of the pole piece 50 can be measured by a sensor. Specifically, the sensor can include multiple sensors, and the multiple sensors are arranged at intervals along the length direction of the rolling assembly 20, so as to detect the thickness of different areas of the pole piece 50 through the multiple sensors. Of course, only one sensor can also be set, and the sensor is slidably connected to the support frame along the length direction of the rolling assembly 20, so that the thickness of different areas of the pole piece 50 can be detected by one sensor. In this regard, there is no specific limitation in the embodiment of the utility model, and in actual applications, technicians can set it according to needs.

[0045] The processing module in the embodiment of the utility model is electrically connected to the measuring mechanism 30, so as to obtain the thickness data of different areas of the pole piece 50 detected by multiple sensors through the processing module, and compare the thickness data of different areas of the pole piece 50 with the target data respectively, so as to determine the difference between the thickness data of each area of ​​the pole piece 50 and the target data, so as to judge whether there is a problem of excessive thickness in each area of ​​the pole piece 50.

[0046] If a certain area of ​​the pole piece 50 is too thick, the processing module drives the heating mechanism 40 to slide to the corresponding area of ​​the rolling assembly 20, so that the corresponding area of ​​the rolling assembly 20 is heated by the heating mechanism 40, so that the rolling assembly 20 in the area expands due to the heat, thereby reducing the gap between the rolling assemblies 20 in the corresponding area, so that the thickness of the pole piece 50 passing through the area becomes smaller.

[0047] It should be noted that during the test, it was found that the thickness of the pole piece 50 and the temperature rise of the rolling assembly 20 satisfy the relationship y=-0.3914x+157.49. Among them, y represents the thickness of the pole piece 50, and the unit of y is μm. x is the temperature rise of the rolling assembly 20, and the unit of x is ℃. It can be seen from the relationship that for every 10℃ increase in the rolling assembly 20, the pole piece 50 will become thinner by 4μm. In actual applications, the temperature of the heating mechanism 40 is usually controlled within 50℃, and the change in the temperature of the heating mechanism 40 is less than 3℃ during each adjustment.

[0048] For example, the rolling assembly 20 can be heated to a certain temperature, and the thickness of the pole piece 50 can be measured by the measuring mechanism 30 to determine whether the temperature needs to be further increased. If the difference between the thickness of the pole piece 50 and the target thickness is greater than a preset value, the temperature is continued to be increased. If the difference between the thickness of the pole piece 50 and the target thickness is less than a preset value, the temperature is stopped. The preset value is usually greater than or equal to 0.1 μm and less than or equal to 0.5 μm.

[0049] Alternatively, if Figure 1 and Figure 2 As shown, the heating mechanism 40 in the embodiment of the utility model is arranged on a side of the rolling assembly 20 close to or away from the measuring mechanism 30 .

[0050] In the embodiment of the utility model, the heating mechanism 40 can be arranged on one side of the rolling assembly 20 and close to the rolling assembly 20, and the measuring mechanism 30 can be arranged on the other side of the rolling assembly 20. The rolling assembly 20 and the measuring mechanism 30 can also be arranged at intervals, and the heating mechanism 40 can be arranged between the rolling assembly 20 and the measuring mechanism 30 and close to the rolling assembly 20.

[0051] It can be understood that after the pole piece 50 passes through the rolling assembly 20, it flows to the measuring mechanism 30 to measure the thickness of the pole piece 50. The heating mechanism 40 is arranged on a side of the rolling assembly 20 close to or away from the measuring mechanism 30, and is arranged close to the rolling assembly 20, so that the heating mechanism 40 can heat the rolling assembly 20 in time to adjust the gap between the rolling assemblies 20.

[0052] Alternatively, if Figure 1 and Figure 2 As shown, the rolling assembly 20 in the embodiment of the utility model includes a first roller 21 and a second roller 22. Along the first direction A, the first roller 21 and the second roller 22 are arranged at a relative interval and are both rotatably connected to the frame 10; wherein, the rolling assembly 20 and the measuring mechanism 30 are arranged at intervals along the second direction B, and the first direction A is perpendicular to the second direction B.

[0053] like Figure 1 and Figure 2 As shown, in the embodiment of the utility model, the first roller 21 and the second roller 22 are arranged at intervals along the first direction A, and are both rotatably connected to the frame 10. The pole piece 50 is passed through the gap between the first roller 21 and the second roller 22, and the pole piece 50 can be rolled by the first roller 21 and the second roller 22.

[0054] The measuring mechanism 30 and the rolling assembly 20 are spaced apart along the second direction B, so that the pole piece 50 after being rolled by the rolling assembly 20 can flow to the measuring mechanism 30 to measure the thickness of the pole piece 50 through the measuring mechanism 30 .

[0055] Alternatively, if Figure 1 and Figure 2 As shown, the heating mechanism 40 in the embodiment of the utility model includes a first heating mechanism 41 and a second heating mechanism 42. The first heating mechanism 41 and the second heating mechanism 42 are respectively slidably connected to the frame 10 along the length direction of the rolling assembly 20, and the first heating mechanism 41 is relatively spaced apart from the first rolling roller 21, and the second heating mechanism 42 is relatively spaced apart from the second rolling roller 22.

[0056] like Figure 1 and Figure 2As shown, in the embodiment of the utility model, the first heating mechanism 41 is slidably connected to the frame 10 along the length direction of the rolling assembly 20, and is arranged relative to the first roller 21, so that the first roller 21 is heated by the first heating mechanism 41. The second heating mechanism 42 is slidably connected to the frame 10 along the length direction of the rolling assembly 20, and is arranged relative to the second roller 22, so that the second heating mechanism 42 is heated by the second heating mechanism 42.

[0057] In the embodiment of the utility model, the first roller 21 is heated by the first heating mechanism 41, and the second roller 22 is heated by the second heating mechanism 42 to improve the heating accuracy and speed of the rolling assembly 20, thereby more efficiently adjusting the thickness of the pole piece 50.

[0058] Alternatively, if Figure 2 As shown, the first heating mechanism 41 in the embodiment of the utility model includes a first slide rail 411 and a first heating element 412. The first slide rail 411 is fixedly connected to the frame 10, and the first heating element 412 is slidably connected to the first slide rail 411 along the length direction of the rolling assembly 20, and is relatively spaced apart from the first roller 21; the second heating mechanism 42 includes a second slide rail 421 and a second heating element 422. The second slide rail 421 is fixedly connected to the frame 10, and the second heating element 422 is slidably connected to the second slide rail 421 along the length direction of the rolling assembly 20, and is relatively spaced apart from the second roller 22.

[0059] In the embodiment of the utility model, the first slide rail 411 is fixedly connected to the frame 10, and the extension direction of the first slide rail 411 is the same as the length direction of the rolling assembly 20. The first heating element 412 is slidably connected to the first slide rail 411 along the length direction of the rolling assembly 20, so that the first heating element 412 and the first roller 21 are arranged relative to each other. The first heating element 412 slides along the first slide rail 411 to heat different areas of the first roller 21 through the first heating element 412.

[0060] Similarly, the second slide rail 421 is fixedly connected to the frame 10 and spaced apart from the first slide rail 411 along the first direction A. The extension direction of the second slide rail 421 is the same as the length direction of the rolling assembly 20. The second heating element 422 is slidably connected to the second slide rail 421 along the length direction of the rolling assembly 20, so that the second heating element 422 and the second roller 22 are spaced apart relative to each other. The second heating element 422 slides along the second slide rail 421 to heat different areas of the second roller 22 through the second heating element 422.

[0061] In the embodiment of the utility model, the first heating member 412 is slidably connected to the first slide rail 411, and the second heating member 422 is slidably connected to the second slide rail 421. With a simple structure, the first heating member 412 and the second heating member 422 can slide along the length direction of the rolling assembly 20 to heat different areas of the rolling assembly 20.

[0062] Alternatively, if Figure 2 As shown, the first heating mechanism 41 in the embodiment of the utility model also includes a first driving member 413, and the first driving member 413 is connected to the first heating member 412; the second heating mechanism 42 also includes a second driving member 423, and the second driving member 423 is connected to the second heating member 422; the processing module is electrically connected to the measuring mechanism 30, the first driving member 413 and the second driving member 423, and the processing module is used to obtain the thickness data of the pole piece 50, and drive the first driving member 413 and / or the second driving member 423 to operate based on the thickness data, so as to drive the first heating member 412 to slide along the first slide rail 411, and / or the second heating member 422 to slide along the second slide rail 421.

[0063] In the embodiment of the utility model, Figure 2 As shown, the first driving member 413 is connected to the first heating member 412, and the second driving member 423 is connected to the second heating member 422. The processing module is electrically connected to the measuring mechanism 30, the first driving member 413 and the second driving member 423, so as to obtain the thickness data of different regions of the pole piece 50 through the processing module. If the thickness of a part of the pole piece 50 is too large, the processing module can drive the first driving member 413 and / or the second driving member 423 to operate based on the thickness data, thereby driving the first heating member 412 to slide along the first slide rail 411, and / or driving the second heating member 422 to slide along the second slide rail 421. The first heating member 412 heats the first roller 21, and the second heating member 422 heats the second roller 22.

[0064] In the embodiment of the utility model, the first heating member 412 is driven by the first driving member 413 to slide relative to the first slide rail 411 to heat different areas of the first roller 21. The second heating member 422 is driven by the second driving member 423 to slide relative to the second slide rail 421 to heat different areas of the second roller 22. Through the above arrangement, the first heating member 412 and the second heating member 422 heat the rolling assembly 20 more flexibly, and it is convenient to adjust the heating areas of the first roller 21 and the second roller 22.

[0065] Optionally, the first heating element 412 and the second heating element 422 both include at least one of an electromagnetic heating element and an infrared heating element.

[0066] The first heating element 412 in the embodiment of the utility model can be an electromagnetic heating element, such as an electromagnetic heater, etc. The first heating element 412 can also be an infrared heating element, such as an infrared lamp, etc. Similarly, the second heating element 422 can also be an electromagnetic heating element and / or an infrared heating element.

[0067] In the embodiment of the utility model, there is no limitation on the specific types of the first heating element 412 and the second heating element 422. In actual applications, technicians can select appropriate heating elements as the first heating element 412 and the second heating element 422 as needed.

[0068] Alternatively, if Figure 1 and Figure 2 As shown, along the first direction A, the first roller 21 and / or the second roller 22 are movably connected to the frame 10 to adjust the gap between the first roller 21 and the second roller 22 .

[0069] like Figure 1 and Figure 2 As shown, along the first direction A, the first roller 21 and / or the second roller 22 can be movably connected to the frame 10 to move the first roller 21 and / or the second roller 22 and adjust the gap between the first roller 21 and the second roller 22, so that the pole piece rolling device can be suitable for rolling pole pieces 50 of different thicknesses, so as to improve the practicality of the pole piece rolling device.

[0070] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0071] Although the optional embodiments of the utility model embodiments have been described, those skilled in the art, once knowing the basic creative concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including optional embodiments and all changes and modifications falling within the scope of the utility model embodiments.

[0072] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or terminal device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the article or terminal device including the elements.

[0073] The technical solution provided by the present invention is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the present invention. At the same time, for those skilled in the art, according to the principle and implementation method of the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A pole piece rolling device, It is characterized in that include: Frame (10); A rolling assembly (20), the rolling assembly (20) being rotatably connected to the frame (10), the rolling assembly (20) being used for rolling the pole piece (50), and the rolling assembly (20) having a length direction; a measuring mechanism (30), the measuring mechanism (30) being arranged at a distance from the rolling assembly (20), and the measuring mechanism (30) being used to measure the thickness of the pole piece (50); a heating mechanism (40), the heating mechanism (40) being slidably connected to the frame (10) along the length direction of the rolling assembly (20) and being arranged relative to the rolling assembly (20) at a distance; A processing module, the processing module is electrically connected to the measuring mechanism (30) and the heating mechanism (40), the processing module is used to obtain thickness data of different areas of the pole piece (50), if the thickness of a part of the pole piece is too large, the processing module can drive the heating mechanism (40) to slide, so as to heat a part of the rolling assembly (20) corresponding to the part of the pole piece (50) with excessive thickness.

2. The pole piece rolling device according to claim 1, It is characterized in that Along the length direction of the rolling assembly (20), the length of the heating mechanism (40) is smaller than the length of the rolling assembly (20).

3. The pole piece rolling device according to claim 1, It is characterized in that The measuring mechanism (30) comprises a support frame and one or more sensors, wherein: One of the sensors is slidably connected to the support frame along the length direction of the rolling assembly, and / or a plurality of the sensors are spaced apart along the length direction of the rolling assembly (20); The sensor is used to detect the thickness of different areas of the pole piece (50).

4. The pole piece rolling device according to claim 1, It is characterized in that The heating mechanism (40) is arranged on a side of the rolling assembly (20) close to or away from the measuring mechanism (30).

5. The pole piece rolling device according to claim 1, It is characterized in that The rolling assembly (20) comprises a first rolling roller (21) and a second rolling roller (22); along a first direction (A), the first rolling roller (21) and the second rolling roller (22) are arranged with a relative spacing and are both rotatably connected to the frame (10); Wherein, the rolling assembly (20) and the measuring mechanism (30) are arranged at intervals along a second direction (B), and the first direction (A) is perpendicular to the second direction (B).

6. The pole piece rolling device according to claim 5, It is characterized in that The heating mechanism (40) comprises a first heating mechanism (41) and a second heating mechanism (42), The first heating mechanism (41) and the second heating mechanism (42) are respectively connected to the frame (10) in a sliding manner along the length direction of the rolling assembly (20), and the first heating mechanism (41) and the first rolling roller (21) are arranged at a relative interval, and the second heating mechanism (42) and the second rolling roller (22) are arranged at a relative interval.

7. The pole piece rolling device according to claim 6, It is characterized in that The first heating mechanism (41) comprises a first slide rail (411) and a first heating element (412), wherein the first slide rail (411) is fixedly connected to the frame (10), and the first heating element (412) is slidably connected to the first slide rail (411) along the length direction of the rolling assembly (20), and is arranged relative to the first roller (21) at a distance. The second heating mechanism (42) comprises a second slide rail (421) and a second heating element (422), wherein the second slide rail (421) is fixedly connected to the frame (10), and the second heating element (422) is slidably connected to the second slide rail (421) along the length direction of the rolling assembly (20), and is arranged at a relative interval to the second rolling roller (22).

8. The pole piece rolling device according to claim 7, It is characterized in that The first heating mechanism (41) further comprises a first driving member (413), wherein the first driving member (413) is connected to the first heating member (412); The second heating mechanism (42) further comprises a second driving member (423), wherein the second driving member (423) is connected to the second heating member (422); The processing module is electrically connected to the measuring mechanism (30), the first driving member (413) and the second driving member (423), and is used to obtain thickness data of the pole piece (50), and drive the first driving member (413) and / or the second driving member (423) to operate based on the thickness data, so as to drive the first heating member (412) to slide along the first slide rail (411), and / or the second heating member (422) to slide along the second slide rail (421).

9. The pole piece rolling device according to claim 7, It is characterized in that The first heating element (412) and the second heating element (422) both include at least one of an electromagnetic heating element and an infrared heating element.

10. The pole piece rolling device according to claim 5, It is characterized in that Along the first direction (A), the first roller (21) and / or the second roller (22) are movably connected to the frame (10) to adjust the gap between the first roller (21) and the second roller (22).

Images