Rolling device and processing equipment

Abstract

The utility model discloses a rolling device and processing equipment, the rolling device comprises a first conveying roller and a second conveying roller which are arranged side by side, a first rolling mechanism, a second rolling mechanism, a first roller wiping mechanism and a second roller wiping mechanism, and the first conveying roller and the second conveying roller are used for winding a pole piece on the first conveying roller and the second conveying roller. The first rolling mechanism comprises a first rolling piece arranged on one side of the first conveying roller and is used for rolling the surface of one side of the pole piece; and the second rolling mechanism comprises a second rolling piece arranged on one side of the second conveying roller and is used for rolling the surface of the other side of the pole piece. When the pole piece is conveyed through the first conveying roller and the second conveying roller, the surfaces of the two sides of the pole piece are rolled, and the first roller wiping mechanism is arranged on the side, away from the first rolling piece, of the first conveying roller and used for wiping the first conveying roller; the second roller wiping mechanism is arranged on the side, away from the second rolling piece, of the second conveying roller and used for wiping the second conveying roller. And the first conveying roller and the second conveying roller cannot generate metal powder accumulation.

Description

Technical Field

[0001] The present application relates to the field of battery production equipment, and in particular to a rolling device and processing equipment. Background Art

[0002] As the new energy vehicle market continues to expand, the demand for new energy vehicle power batteries is also increasing, and the demand for high-capacity power battery die-cutting equipment is becoming increasingly apparent. In high-speed die-cutting equipment, as efficiency increases, the transmission speed of the electrode sheet will also increase, the rotation speed of the rollers in the entire machine will also increase accordingly, and the speed of the reinforcing rubber rollers has also doubled. As part of the electrode sheet, when the reinforcing rubber rollers crimp the electrode tabs, metal powder will accumulate and agglomerate in the area corresponding to the electrode tab on the rubber roller. If the electrode tab slips during the crimping process, the agglomerate can scratch the electrode tab (damaging the reinforcing ribs formed by the crimping wheel) or cause irregular wrinkles, affecting the product yield and equipment stability. Utility Model Content

[0003] The present application proposes a rolling device and processing equipment, which can effectively clean the metal powder on the roller to avoid the accumulation of metal powder and damage to the pole piece.

[0004] The present application provides a rolling device, comprising a first conveying roller and a second conveying roller arranged side by side, wherein the first conveying roller and the second conveying roller convey the electrode sheet, and the rolling device further comprises:

[0005] A first rolling mechanism includes a first rolling member provided on one side of the first conveying roller, for rolling one side surface of the electrode sheet;

[0006] A second rolling mechanism includes a second rolling member provided on one side of the second conveying roller, for rolling the other side surface of the electrode sheet;

[0007] a first wiping roller mechanism, provided on a side of the first conveying roller away from the first roller pressing member, for wiping the first conveying roller;

[0008] The second wiping roller mechanism is arranged on a side of the second conveying roller away from the second roller pressing member, and is used for wiping the second conveying roller.

[0009] In some embodiments, the first wiping roller mechanism comprises:

[0010] First unwinding roller;

[0011] First receiving roller;

[0012] A first material belt, one end of which is wound around the first unwinding roller and the other end of which is wound around the first receiving roller, the first material belt being in contact with the first conveying roller;

[0013] a first damper connected to the first unloading roller;

[0014] The first motor is drivingly connected to the first receiving roller.

[0015] In some embodiments, the first wiping roller mechanism further includes two first guide rollers disposed near the first conveying roller, and the first material tape is wound around one of the first guide rollers, and then sequentially wound around the first conveying roller and the other first guide roller.

[0016] In some embodiments, the second wiping roller mechanism comprises:

[0017] Second unwinding roller;

[0018] Second receiving roller;

[0019] a second material belt, one end of which is wound around the second unwinding roller and the other end of which is wound around the second receiving roller, the second material belt being in contact with the second conveying roller;

[0020] a second damper connected to the second unwinding roller;

[0021] The second motor is drivingly connected to the second receiving roller.

[0022] In some embodiments, the second wiping roller mechanism further includes two second guide rollers arranged near the second conveying roller, and the second material tape is wound around one of the second guide rollers, and then sequentially wound around the second conveying roller and the other second guide roller.

[0023] In some embodiments, the first rolling mechanism includes two first rolling members arranged side by side along the axis of the first conveying roller;

[0024] The first wiping roller mechanism includes two first material belts arranged side by side along the axis of the first conveying roller; the first material belts are arranged in a one-to-one correspondence with the first rolling member.

[0025] In some embodiments, the first rolling mechanism further includes a first driving member for driving the first rolling member to move closer to or away from the first conveying roller.

[0026] In some embodiments, the second rolling mechanism includes two second rolling members arranged side by side along the axis of the second conveying roller;

[0027] The second wiping roller mechanism includes two second material belts arranged side by side along the axis of the second conveying roller; the second material belts are arranged in a one-to-one correspondence with the second rolling member.

[0028] In some embodiments, the second rolling mechanism further includes a second driving member for driving the second rolling member to move closer to or away from the second conveying roller.

[0029] The present application also proposes a processing equipment, comprising the above-mentioned rolling device and a frame for installing the rolling device.

[0030] The rolling device in this application includes a first conveyor roller and a second conveyor roller arranged side by side, a first rolling mechanism, a second rolling mechanism, a first wiping roller mechanism, and a second wiping roller mechanism. The first conveyor roller and the second conveyor roller are used to wrap the electrode sheet around them. The first rolling mechanism includes a first rolling member located on one side of the first conveyor roller for rolling one side of the electrode sheet; the second rolling mechanism includes a second rolling member located on one side of the second conveyor roller for rolling the other side of the electrode sheet. As the electrode sheet is conveyed by the first and second conveyor rollers, its surfaces on both sides are rolled. The first wiping roller mechanism is located on the side of the first conveyor roller away from the first rolling member and is used to wipe the first conveyor roller; the second wiping roller mechanism is located on the side of the second conveyor roller away from the second rolling member and is used to wipe the second conveyor roller. The first and second conveyor rollers do not produce metal powder accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a structural diagram of a rolling device in one embodiment of the present application;

[0032] Figure 2 This is a structural schematic diagram of a rolling device in another embodiment of the present application;

[0033] Figure 3 for Figure 1 A schematic structural diagram of the first unwinding roller in the embodiment;

[0034] Figure 4 for Figure 1 Schematic diagram of the structure of the first receiving roller in the embodiment.

[0035] Description of labels:

[0036] 11. First conveying roller; 12. Second conveying roller; 21. First rolling member; 22. First driving member; 23. First mounting bracket;

[0037] 30. First wiping roller mechanism; 31. First unwinding roller; 32. First receiving roller; 33. First material belt; 34. First guide roller; 35. First damper; 36. First motor; 37. First barrel; 38. Second barrel;

[0038] 40. Second wiping roller mechanism; 41. Second unwinding roller; 42. Second receiving roller; 43. Second material belt; 44. Second guide roller; 45. Second damper; 46. Second motor; 47. Third barrel; 48. Fourth barrel;

[0039] 51. Second rolling member; 52. Second driving member; 53. Second mounting bracket.

[0040] The purpose, features and advantages of this application will be further explained with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the schemes in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments in this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0042] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0043] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element.

[0044] In addition, the descriptions of "first", "second", etc. in the embodiments of the present application are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0045] The present application embodiment proposes a rolling device, referring to Figure 1 and Figure 2The rolling device includes a first conveying roller 11 and a second conveying roller 12 arranged side by side. The first conveying roller 11 and the second conveying roller 12 are used to convey the electrode sheet. The rolling device also includes: a first rolling mechanism, including a first rolling member 21 arranged on one side of the first conveying roller 11, for rolling one side surface of the electrode sheet; a second rolling mechanism, including a second rolling member 51 arranged on one side of the second conveying roller 12, for rolling the other side surface of the electrode sheet; a first wiping roller mechanism 30, arranged on the side of the first conveying roller 11 away from the first rolling member 21, for wiping the first conveying roller 11; a second wiping roller mechanism 40, arranged on the side of the second conveying roller 12 away from the second rolling member 51, for wiping the second conveying roller 12.

[0046] In the embodiment of the present application, the first and second conveyor rollers 11, 12 are used to convey the electrode sheets, and are arranged side by side, that is, parallel to each other. As the electrode sheets are conveyed by the first and second conveyor rollers 11, 12, their surfaces are respectively pressed by the first and second pressing mechanisms. The first wiping roller mechanism 30 cleans the first conveyor roller 11, and the second wiping roller mechanism 40 cleans the second conveyor roller 12. The first and second conveyor rollers 11, 12 do not generate metal powder accumulation, damage the electrode sheet surface, or affect the electrode sheet's crimping.

[0047] Specifically, the first wiping roller mechanism 30 and the second wiping roller mechanism 40 can be made of felt rollers or brush rollers connected to the first conveying roller 11 and the second conveying roller 12, or non-woven fabric belts. Their main function is to wipe the surfaces of the first conveying roller 11 and the second conveying roller 12.

[0048] In some embodiments, the first wiping roller mechanism 30 includes: a first unloading roller 31; a first receiving roller 32; a first material belt 33, one end of which is wound around the first unloading roller 31 and the other end is wound around the first receiving roller 32, and the first material belt 33 is in contact with the first conveying roller 11; a first damper 35, connected to the first unloading roller 31; and a first motor 36, which is driven and connected to the first receiving roller 32.

[0049] In the examples of this application, refer to Figure 3 and Figure 4 The first unwinding roller 32 is provided with a first barrel 37, and one end of the first material belt 33 is fixed and wound on the first barrel 37. The first receiving roller 32 is provided with a second barrel 38, and the other end of the first material belt 33 is fixed and wound on the second barrel 38.

[0050] The first material strip 33 is spaced apart from the electrode sheet and is located on either side of the first conveyor roller 11. A first rolling mechanism is provided on one side of the first conveyor roller 11, and a first wiping roller mechanism 30 is provided on the other side. This arrangement optimizes space utilization. Simultaneously rolling the electrode sheet and wiping the first conveyor roller 11 allows for timely cleaning of the first conveyor roller 11. A first damper 35 provides damping for the rotation of the first unwinding roller 31. When the first motor 36 rotates the first take-up roller 32, the first material strip 33 is tensioned, ensuring that the first material strip 33 maintains contact with one side of the first conveyor roller 11. The first material strip 33 can be made of either non-woven fabric with a cleaning solution or tape with an adhesive layer. The conveying speed of the first material strip 33 is much lower than that of the electrode sheet. The clean first material strip 33 is released from the first unwinding roller 31 and then reclaimed by the first take-up roller 32 after wiping the first conveyor roller 11. This prevents reverse contamination of the first conveyor roller 11 and the material strip from repeated use.

[0051] In addition, the first wiping roller mechanism 30 also includes two first guide rollers 34 positioned near the first conveyor roller 11. The first material strip 33 is wound around one of the first guide rollers 34, and then sequentially wound around the first conveyor roller 11 and the other first guide roller 34. In this embodiment, the first guide roller 34 and the second guide roller 44 serve to guide the first material strip 33. The first conveyor roller 11 is positioned between the two first guide rollers 34, and the first feed roller and the first receiving roller 32 are positioned on the side of the two first guide rollers 34 away from the first conveyor roller 11. The four rollers in the first wiping roller mechanism 30 can be arranged in a trapezoidal shape, located at the four corners of the trapezoid. This avoids the pole pieces and provides a larger installation space for the first conveyor roller 11 and the second conveyor roller 12.

[0052] In the examples of this application, refer to Figure 1 and Figure 2 The second wiping roller mechanism 40 includes: a second unloading roller 41; a second receiving roller 42; a second material belt 43, one end of which is wound around the second unloading roller 41, and the other end is wound around the second receiving roller 42, the second material belt 43 is in contact with the second conveying roller 12; a second damper 45, connected to the second unloading roller 41; a second motor 46, drivingly connected to the second receiving roller 42.

[0053] In this embodiment, a third barrel 47 is provided on the second unwinding roller 41, and one end of the second material strip 43 is fixed to and wound around the third barrel 47. A fourth barrel 48 is provided on the second receiving roller 42, and the other end of the second material strip 43 is fixed to and wound around the fourth barrel 48. The second material strip 43 is spaced apart from the electrode and is located on either side of the second conveyor roller 12. A second rolling mechanism is provided on one side of the second conveyor roller 12, and a second wiping roller mechanism 40 is provided on the other side. This arrangement improves space utilization. Simultaneously, the electrode is rolled and wiped while the second conveyor roller 12 is cleaned, allowing for timely cleaning. A second damper 45 provides damping for the rotation of the second unwinding roller 41. When the second motor 46 rotates the second receiving roller 42, the second material strip 43 is tensioned, ensuring that the second material strip 43 maintains contact with one side of the second conveyor roller 12. The second material strip 43 can be made of a non-woven fabric with a cleaning solution or an adhesive tape with an adhesive layer. The conveying speed of the second material belt 43 is much lower than that of the electrode. The second unwinding roller 41 releases a clean second material belt 43, which is then recovered by the second receiving roller 42 after wiping the second conveyor roller 12. This prevents repeated use from causing reverse contamination to the second conveyor roller 12 and the material belt.

[0054] In addition, the second wiping roller mechanism 40 also includes two second guide rollers 44 disposed near the second conveyor roller 12. The second material strip 43 is wound around one of the second guide rollers 44, and then sequentially wound around the second conveyor roller 12 and the other second guide roller 44. In this embodiment, the second guide roller 44 and the second guide roller 44 serve to guide the second material strip 43. The second conveyor roller 12 is located between the two second guide rollers 44, and the second feed roller and the second receiving roller 42 are located on the side of the two second guide rollers 44 away from the second conveyor roller 12. The four rollers in the second wiping roller mechanism 40 can be arranged in a trapezoidal shape, located at the four corners of the trapezoid. This avoids the pole piece and provides a larger installation space for the second conveyor roller 12.

[0055] Reference Figure 1 and Figure 2The first rolling mechanism includes two first rolling members 21 arranged side by side along the axis of the first conveyor roller 11; the first wiping roller mechanism 30 includes two first material belts 33 arranged side by side along the axis of the first conveyor roller 11; the first material belts 33 are arranged in a one-to-one correspondence with the first rolling members 21. In this embodiment, two first rolling members 21 are provided to roll the edge areas on both sides of the electrode. The first rolling member 21 can be optionally a roller, and the outer periphery of the roller is provided with a strip-shaped protrusion, which can produce regular wrinkles on the surface of the electrode when rolling the strip-shaped protrusion. The first conveyor roller 11 can be optionally a plastic roller, which is made of a softer material and can buffer the extrusion of the strip-shaped protrusion during the rolling process to avoid damage to the electrode. The two first material belts 33 can be retracted and extended synchronously, and contact the area opposite to the rolling area of ​​the first conveyor roller 11 and the electrode, and wipe the area to avoid metal powder accumulation in this area.

[0056] Furthermore, the first rolling mechanism also includes a first driving member 22 for driving the first rolling member 21 toward or away from the first conveyor roller 11. In this embodiment, the edge pressing device includes a first mounting frame 23, which can be a frame structure. The first conveyor roller 11 and the first rolling mechanism are disposed within the frame, through which the electrode piece passes. Specifically, the first conveyor roller 11 can be disposed near the lower portion of the frame, and the first driving member 22 can be a cylinder disposed near the upper portion of the frame. The cylinder's push rod extends vertically downward and is rotatably connected to the first rolling member 21. The cylinder's push rod extends to drive the first rolling member 21 toward the electrode piece on the first conveyor roller 11, rolling the electrode piece along the conveying direction as it is transported. When rolling the electrode piece is not required, the push rod retracts, driving the first rolling member 21 away from the first conveyor roller 11, facilitating electrode piece installation. Of course, the push rod can also be periodically extended and retracted to regularly roll the surface of the electrode piece.

[0057] Reference Figure 1 and Figure 2 The second rolling mechanism includes two second rolling members 51 arranged side by side along the axis of the second conveying roller 12; the second wiping roller mechanism 40 includes two second material belts 43 arranged side by side along the axis of the second conveying roller 12; the second material belts 43 are arranged in a one-to-one correspondence with the second rolling members 51.

[0058] In the embodiment of the present application, two second rollers 51 are provided to roll the edge areas on both sides of the electrode. The second rollers 51 may be rollers with strip-shaped protrusions on the outer periphery. These strip-shaped protrusions can produce regular wrinkles on the surface of the electrode when rolled. The second conveyor roller 12 may be a plastic roller, which is made of a softer material and can buffer the extrusion of the strip-shaped protrusions during the rolling process, thereby preventing damage to the electrode. The two second material belts 43 can be retracted and extended synchronously, and contact and wipe the area opposite the second conveyor roller 12 and the electrode rolling area to prevent metal powder from accumulating in this area.

[0059] Furthermore, the second rolling mechanism also includes a second driving member 52 for driving the second rolling member 51 toward or away from the second conveyor roller 12. In this embodiment, the edge pressing device includes a second mounting frame 53, which can be a frame structure. The second conveyor roller 12 and the second rolling mechanism are disposed within the frame, and the electrode sheet passes through the frame. Specifically, the second conveyor roller 12 can be disposed near the lower portion of the frame, and the second driving member 52 can be a cylinder disposed near the upper portion of the frame. The cylinder's push rod extends vertically downward and is rotatably connected to the second rolling member 51. The cylinder's push rod extends to drive the second rolling member 51 toward the electrode sheet on the second conveyor roller 12, rolling the electrode sheet along the conveying direction as it is transported. When rolling the electrode sheet is not required, the push rod retracts, driving the second rolling member 51 away from the second conveyor roller 12, facilitating electrode sheet installation. Of course, the push rod can also be periodically extended and retracted to perform regular rolling of the electrode sheet surface.

[0060] The present application also provides a processing device, referring to Figures 1 to 4 The processing equipment includes the above-mentioned roller pressing device and a frame for installing the roller pressing device. In this embodiment, the processing equipment can be a die cutting machine.

[0061] In the embodiment of the present application, the first conveyor roller 11 and the second conveyor roller 12 in the rolling device can be arranged in a staggered arrangement, one high and one low. The pole piece extends upward from the lower left of the first conveyor roller 11, wraps around the upper side of the first conveyor roller 11, then extends to the lower right second conveyor roller 12, wraps around the lower side of the second conveyor roller 12, and then extends to the upper right. The pole piece is transported in a Z-shaped pattern between the first and second conveyor rollers 11, 12. The first rolling mechanism is located above the first conveyor roller 11, and the second rolling mechanism is located below the second conveyor roller 12. The first unloading roller 31 is located below the left side of the first conveyor roller 11, and the first receiving roller 32 is located below the right side of the first conveyor roller 11. The second unloading roller 41 is located above the left side of the second conveyor roller 12 and above the first receiving roller 32. The first receiving roller 32 is located above the right side of the second conveyor roller 12. This arrangement, which places the two sets of rolling mechanisms and the two sets of rubbing rollers symmetrically, improves space utilization within the rolling device. This makes the roller pressing device more compact and smaller in size, and also satisfies the requirements of rolling both sides of the electrode and cleaning the two sets of conveying rollers.

[0062] In the embodiments of the present application, the specific operating principles of the rolling device and processing equipment are as follows: the rolling device includes a first conveyor roller 11 and a second conveyor roller 12, arranged side by side, a first rolling mechanism, a second rolling mechanism, a first wiping roller mechanism 30, and a second wiping roller mechanism 40. The first conveyor roller 11 and the second conveyor roller 12 are used to wrap the electrode sheet around them. The first rolling mechanism includes a first rolling member 21 located on one side of the first conveyor roller 11, which is used to roll one side of the electrode sheet; the second rolling mechanism includes a second rolling member 51 located on one side of the second conveyor roller 12, which is used to roll the other side of the electrode sheet. As the electrode sheet is conveyed by the first and second conveyor rollers 11 and 12, both sides of the electrode sheet are rolled. The first wiping roller mechanism 30 is located on the side of the first conveyor roller 11 away from the first rolling member 21, which is used to wipe the first conveyor roller 11; the second wiping roller mechanism 40 is located on the side of the second conveyor roller 12 away from the second rolling member 51, which is used to wipe the second conveyor roller 12. The first and second conveyor rollers 11 and 12 do not generate metal powder accumulation.

[0063] The above are only partial or preferred embodiments of the present application. Neither the text nor the drawings can limit the scope of protection of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the overall concept of the present application, or direct / indirect application in other related technical fields are included in the scope of protection of the present application.

Claims

1. A rolling device, comprising a first conveying roller and a second conveying roller arranged side by side, wherein the first conveying roller and the second conveying roller are used to convey the electrode piece, characterized in that: The rolling device also includes: A first rolling mechanism includes a first rolling member provided on one side of the first conveying roller, for rolling one side surface of the electrode sheet; A second rolling mechanism includes a second rolling member provided on one side of the second conveying roller, for rolling the other side surface of the electrode sheet; a first wiping roller mechanism, provided on a side of the first conveying roller away from the first roller pressing member, for wiping the first conveying roller; The second wiping roller mechanism is arranged on a side of the second conveying roller away from the second roller pressing member, and is used for wiping the second conveying roller.

2. The roller pressing device according to claim 1, characterized in that The first wiping roller mechanism comprises: First unwinding roller; First receiving roller; A first material belt, one end of which is wound around the first unwinding roller and the other end of which is wound around the first receiving roller, the first material belt being in contact with the first conveying roller; a first damper connected to the first unloading roller; The first motor is drivingly connected to the first receiving roller.

3. The roller pressing device according to claim 2, characterized in that The first wiping roller mechanism further includes two first guide rollers arranged close to the first conveying roller. The first material strip is wound around one of the first guide rollers and then sequentially wound around the first conveying roller and the other first guide roller.

4. The rolling device according to claim 3, characterized in that The second wiping roller mechanism includes: Second unwinding roller; Second receiving roller; a second material belt, one end of which is wound around the second unwinding roller and the other end of which is wound around the second receiving roller, the second material belt being in contact with the second conveying roller; a second damper connected to the second unwinding roller; The second motor is drivingly connected to the second receiving roller.

5. The rolling device according to claim 4, characterized in that The second wiping roller mechanism further includes two second guide rollers arranged near the second conveying roller. The second material belt is wound around one of the second guide rollers and then sequentially wound around the second conveying roller and the other second guide roller.

6. The roller pressing device according to claim 5, characterized in that: The first rolling mechanism includes two first rolling members arranged side by side along the axis of the first conveying roller; The first wiping roller mechanism includes two first material belts arranged side by side along the axis of the first conveying roller; the first material belts are arranged in a one-to-one correspondence with the first rolling member.

7. The rolling device according to claim 6, characterized in that: The first rolling mechanism further includes a first driving member for driving the first rolling member to approach or move away from the first conveying roller.

8. The roller pressing device according to claim 5, characterized in that: The second rolling mechanism includes two second rolling members arranged side by side along the axis of the second conveying roller; The second wiping roller mechanism includes two second material belts arranged side by side along the axis of the second conveying roller; the second material belts are arranged in a one-to-one correspondence with the second rolling member.

9. The roller pressing device according to claim 8, characterized in that: The second rolling mechanism further includes a second driving member for driving the second rolling member to approach or move away from the second conveying roller.

10. A processing equipment, characterized in that, The invention comprises the rolling device according to any one of claims 1 to 9, and a frame for installing the rolling device.

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