Flattening and wrinkle removing device and coating equipment

Abstract

The utility model belongs to the technical field of battery processing, and particularly relates to a smoothing and wrinkle removing device and coating equipment. Comprising a base which is provided with a supporting shaft in the first direction; the compression roller mechanism comprises an upper rolling assembly and a lower rolling assembly which are arranged up and down in the first direction, the upper rolling assembly and the lower rolling assembly each comprise a roller seat and a compression roller unit connected to the roller seat, and the two roller seats can be movably and adjustably installed on the supporting shaft in the first direction and can be rotationally adjusted around the supporting shaft; the pressure adjusting mechanism is mounted on the supporting shaft and is used for adjusting the pressing force of the upper rolling assembly and the lower rolling assembly on the tabs; the electrode plate is subjected to wrinkle removal through the pressing roller mechanism, the roller seat can rotate around the supporting shaft to be adjusted, so that the two pressing roller units swing along with the movement of the electrode plate, the wrinkle removal effect on the electrode plate is further improved, and the pressing force of the two pressing roller assemblies on the electrode lug is adjusted through the pressure adjusting mechanism.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery processing, and in particular relates to a wrinkle smoothing and removing device and coating equipment. Background Art

[0002] During the preparation of pole pieces in the secondary battery industry, the pole pieces are easily wrinkled after leaving the oven due to unstable tensile tension of the pole piece foil, horizontal fluctuations of the equipment, changes in oven temperature and wind, and the interface between the coated foil and the coating. The pole pieces are then scrapped due to breakage of the strips at the rolling point. Currently, wrinkles are mainly smoothed and removed using floating rollers, air knives, and regulating rollers after leaving the oven. However, in actual production, the floating rollers, air knives, and regulating rollers still need to be adjusted multiple times according to the status of the pole tabs, which is time-consuming and labor-intensive.

[0003] Therefore, how to quickly eliminate electrode wrinkles, reduce abnormal equipment downtime, and reduce material scrapping has become an urgent problem to be solved. Utility Model Content

[0004] The purpose of the present utility model is to provide a smoothing and wrinkle removal device and a coating equipment to address the above-mentioned technical problems. The electrode is dewrinkled by a pressure roller mechanism, and the roller seat can be rotated and adjusted around the support shaft so that the two pressure roller units can swing as the electrode moves, generating an outward force on the electrode, further improving the wrinkle removal effect on the electrode. The pressure adjustment mechanism is used to adjust the pressing force between the two pressure roller assemblies on the electrode ears, to avoid excessive pressing force of the two pressure roller units on the electrode to damage the electrode membrane surface state, and to avoid excessive pressing force to cause the electrode to slip and affect the wrinkle removal effect.

[0005] In view of this, the present invention provides a wrinkle smoothing and removing device, comprising:

[0006] A base, wherein a support shaft is provided on the base along a first direction (Y);

[0007] A pressing roller mechanism includes an upper pressing roller assembly and a lower pressing roller assembly arranged up and down along a first direction (Y), and each of the upper pressing roller assembly and the lower pressing roller assembly includes a roller seat and a pressing roller unit connected to the roller seat, and both roller seats are mounted on a support shaft so as to be movable and adjustable along the first direction (Y), and both roller seats are rotatable and adjustable around the support shaft, and a wrinkle removal gap is formed between the two pressing roller units for the tab to pass through;

[0008] The pressure adjustment mechanism is installed on the support shaft and is used to adjust the pressing force of the upper roller pressing assembly and the lower roller pressing assembly on the tab.

[0009] In the above scheme, further comprising:

[0010] An angle adjustment rod, the angle adjustment rod passing through the two roller seats along a first direction (Y);

[0011] Wherein, an arc-shaped limiting hole is opened on the base, and the angle adjustment rod is movably and adjustablely arranged in the arc-shaped limiting hole.

[0012] In the above scheme, further comprising:

[0013] The lower limit assembly is installed on the support shaft and is located below the roller seat of the lower rolling assembly, and is used to adjust the height of the lower rolling assembly in the first direction (Y).

[0014] In the above solution, further, the pressure regulating mechanism includes:

[0015] An upper limit assembly is mounted on the support shaft and is located above the roller seat of the upper roller pressing assembly;

[0016] The elastic member is arranged between the upper limit assembly and the roller seat of the upper rolling assembly.

[0017] In the above solution, further, the lower limit assembly and the upper limit assembly both include:

[0018] An annular hoop, the annular hoop is movable and adjustable along a first direction (Y) and is disposed on the support shaft;

[0019] The fastening screw is used to lock the annular hoop so that the annular hoop is fixed on the supporting shaft.

[0020] In the above solution, further, the elastic member is a spring, the spring is sleeved on the support shaft, and both ends of the spring respectively abut against the roller seats of the upper limit assembly and the upper rolling assembly.

[0021] In the above solution, further, the pressing roller unit includes:

[0022] Roller shaft, installed on the roller seat;

[0023] The rubber roller is sleeved on the roller shaft.

[0024] In the above solution, further, the rubber roller is a multi-section structure and is arranged along the length direction of the roller shaft.

[0025] In the above solution, further, wrinkle-removing threads are provided on the outer peripheral wall of the rubber roller.

[0026] A coating device, comprising any of the above-mentioned wrinkle smoothing and de-wrinkling devices, further comprising:

[0027] The oven has two symmetrically arranged smoothing and wrinkle-removing devices, which are respectively located on both sides of the oven outlet.

[0028] The beneficial effects of the utility model are:

[0029] 1. The electrode is dewrinkled by a pressure roller mechanism. The roller seat can be rotated and adjusted around the support shaft, so that both pressure roller units can swing as the electrode moves, generating an outward force on the electrode, further improving the dewrinkling effect on the electrode. The pressure adjustment mechanism adjusts the pressing force between the two pressure roller assemblies on the electrode ears to avoid excessive pressure on the electrode to damage the electrode membrane surface state, and to avoid excessive pressure on the electrode to cause the electrode to slip and affect the dewrinkling effect.

[0030] 2. The lower limit assembly can limit the height of the lower roller assembly. The lower limit assembly can be adjusted up and down along the support shaft, thereby adjusting the height of the lower roller assembly to accommodate pole pieces of different heights;

[0031] 3. By setting the rubber roller to a multi-section structure, it can adapt to pole pieces of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the overall structure of the utility model installed at the outlet of the oven;

[0033] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0034] Figure 3 It is a side structural schematic diagram of the utility model installed at the outlet of the oven.

[0035] The marks in the figure are:

[0036] 1. Base; 2. Pressing roller mechanism; 21. Upper pressing assembly; 22. Lower pressing assembly; 23. Roller seat; 24. Pressing roller unit; 241. Roller shaft; 242. Rubber roller; 3. Pressure adjustment mechanism; 31. Upper limit assembly; 32. Elastic member; 4. Angle adjustment rod; 5. Lower limit assembly; 6. Support shaft; 7. Wrinkle removal gap; 8. Arc-shaped limit hole; 9. Annular hoop; 10. Fastening screw; 11. Oven. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0038] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0039] Example 1:

[0040] This embodiment provides a wrinkle smoothing and removing device, comprising:

[0041] A base 1 is provided with a support shaft 6 along a first direction (Y);

[0042] The pressing roller mechanism 2 includes an upper pressing assembly 21 and a lower pressing assembly 22 arranged vertically along a first direction (Y), and each of the upper pressing assembly 21 and the lower pressing assembly 22 includes a roller seat 23 and a pressing roller unit 24 connected to the roller seat 23. Both roller seats 23 are mounted on a support shaft 6 so as to be movable and adjustable along the first direction (Y). Both roller seats 23 are also rotatable and adjustable around the support shaft 6. A wrinkle removal gap 7 is formed between the two pressing roller units 24 for the tab to pass through.

[0043] The pressure regulating mechanism 3 is mounted on the support shaft 6 and is used to adjust the pressing force of the upper pressing roller assembly 21 and the lower pressing roller assembly 22 on the tab.

[0044] In this technical solution, the base 1 can be a steel plate, and the base 1 is installed on one side of the outlet of the oven 11.

[0045] The support shaft 6 can be a cylindrical optical axis with a smooth surface, such as Figure 2 As shown, the support shaft 6 is installed on the base 1 along a first direction (Y), and the first direction (Y) can be a vertical direction.

[0046] The roller mechanism 2 is used to perform rolling and wrinkle removal on the electrode tabs. The upper roller assembly 21 and the lower roller assembly 22 are arranged vertically along a first direction (Y), forming a wrinkle removal gap 7 between the two roller units 24 for the tabs to pass through. The electrode sheet, exiting the oven 11, passes through the wrinkle removal gap 7 between the two roller units 24. The surfaces of the two roller units 24 contact the upper and lower surfaces of the electrode sheet, respectively. As the electrode sheet moves, the two roller units 24 rotate clockwise and counterclockwise, respectively, to achieve wrinkle removal.

[0047] Both roller seats 23 are rotatable and adjustable about the support shaft 6, and both pressure roller units 24 are capable of swinging as the electrode sheet moves. The two pressure roller units 24 swing synchronously, causing the roller seats 23 to rotate with the rotation of the pressure roller units 24. When the pressure roller units 24 swing, they can generate an outward force on the electrode sheet, thereby further improving the wrinkle removal effect on the electrode sheet.

[0048] Both roller seats 23 are mounted on the support shaft 6 so as to be movable and adjustable along the first direction (Y), so that the pressure roller unit 24 connected to the roller seats 23 can be movable and adjustable along the first direction (Y).

[0049] The pressure regulating mechanism 3 can be a structure with up and down regulating functions, which can adjust the pressing force of the upper pressing roller assembly 21 and the lower pressing roller assembly 22 on the pole ear, ensure that the pressing force is moderate, change the friction between the pole piece and the pressing roller unit 24, avoid the two pressing roller units 24 from pressing the pole piece too much, resulting in damage to the pole piece membrane surface state, and avoid the two pressing roller units 24 from pressing the pole piece too little, causing the pole piece to slip and affect the wrinkle removal effect.

[0050] Furthermore, it also includes:

[0051] An angle adjustment rod 4, the angle adjustment rod 4 passes through the two roller seats 23 along the first direction (Y);

[0052] The base 1 is provided with an arc-shaped limiting hole 8 , and the angle adjustment rod 4 is movably and adjustablely arranged in the arc-shaped limiting hole 8 .

[0053] In this technical solution, the angle adjustment rod 4 is arranged in the arc-shaped limiting hole 8, and the angle adjustment rod 4 passes through the two roller seats 23 along the first direction (Y). As the pressure roller mechanism 2 rotates, the bottom end of the angle adjustment rod 4 rotates in the arc-shaped limiting hole 8. The arc-shaped limiting hole 8 is used to limit the rotation angle of the angle adjustment rod 4, thereby limiting the rotation angle of the pressure roller mechanism 2.

[0054] Example 2:

[0055] This embodiment provides a wrinkle smoothing and removing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0056] Also includes:

[0057] The lower limit assembly 5 is installed on the support shaft 6 and is located below the roller seat 23 of the lower rolling assembly 22, and is used to adjust the height of the lower rolling assembly 22 in the first direction (Y).

[0058] In this technical solution, the lower limit assembly 5 can limit the height of the lower roller assembly 22. The lower limit assembly 5 can be adjusted up and down along the support shaft 6, thereby adjusting the height of the lower roller assembly 22 to adapt to pole pieces of different heights.

[0059] Example 3:

[0060] This embodiment provides a wrinkle smoothing and removing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0061] The pressure regulating mechanism 3 includes:

[0062] The upper limit assembly 31 is mounted on the support shaft 6 and is located above the roller seat 23 of the upper rolling assembly 21;

[0063] The elastic member 32 is disposed between the upper limit assembly 31 and the roller seat 23 of the upper rolling assembly 21 .

[0064] In the present technical solution, an elastic member 32 is arranged between the upper limit assembly 31 and the roller seat 23 of the upper roller assembly 21. During the movement of the pole piece, the upper roller assembly 21 is acted upon by the elastic force of the elastic member 32, so that the pressure roller unit 24 always contacts the upper surface of the pole piece. The pressing force of the upper and lower roller assemblies 21 and 22 on the pole ears can be adjusted at any time to avoid excessive pressing force of the two pressure roller units 24 on the pole piece, thereby damaging the membrane surface state of the pole piece, and to avoid excessive pressing force of the two pressure roller units 24 on the pole piece, thereby causing the pole piece to slip and affecting the wrinkle removal effect.

[0065] Furthermore, the elastic member 32 is a spring, which is sleeved on the support shaft 6 , and two ends of the spring respectively abut against the upper limit assembly 31 and the roller seat 23 of the upper rolling assembly 21 .

[0066] In this technical solution, the spring has the advantages of simple structure, low cost, and easy installation and disassembly.

[0067] Example 4:

[0068] This embodiment provides a wrinkle smoothing and removing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0069] The lower limit assembly 5 and the upper limit assembly 31 both include:

[0070] an annular hoop 9, the annular hoop 9 is arranged on the support shaft 6 and can be moved and adjusted along the first direction (Y);

[0071] The fastening screw 10 is used to lock the annular hoop 9 so that the annular hoop 9 is fixed on the support shaft 6.

[0072] In this technical solution, the annular hoop 9 can be a C-shaped structure, with an extending flange at the opening of the annular hoop 9, and a fastening screw 10 is installed on the flange, thereby locking the annular hoop 9 and fixing the annular hoop 9 on the support shaft 6.

[0073] When the height of the lower limit assembly 5 and the upper limit assembly 31 needs to be adjusted, the fastening screws 10 can be loosened, and the lower limit assembly 5 and the upper limit assembly 31 are adjusted to the appropriate height, and then the fastening screws 10 are tightened. The operation is simple and quick.

[0074] Example 5:

[0075] This embodiment provides a wrinkle smoothing and removing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0076] The pressing roller unit 24 includes:

[0077] Roller shaft 241, mounted on roller seat 23;

[0078] The rubber roller 242 is sleeved on the roller shaft 241 .

[0079] In this technical solution, the rubber roller 242 rotates on the roller shaft 241 as the pole piece moves. Since the surface of the rubber roller 242 is elastic, the rubber roller 242 can provide uniform pressure, thereby helping to better remove wrinkles on the pole piece and reducing damage to the pole piece surface.

[0080] Furthermore, the rubber roller 242 is a multi-section structure and is arranged along the length direction of the roller shaft 241 .

[0081] In this technical solution, if Figure 2 As shown, the rubber roller 242 can be divided into multiple rubber rollers 242, which are in contact with each other. The multiple rubber rollers 242 can be removed from the roller shaft 241. When the pole piece is wider, relatively more rubber rollers 242 can be installed. When the pole piece is narrower, the excess rubber rollers 242 can be removed. Therefore, the rubber roller 242 is set to a multi-section structure to adapt to pole pieces of different widths.

[0082] Furthermore, wrinkle-removing threads are provided on the outer peripheral wall of the rubber roller 242 .

[0083] In this technical solution, the wrinkle-removing threads provided on the outer peripheral wall of the rubber roller 242 may be conventional threads for improving the wrinkle-removing effect. The wrinkle-removing threads are used to provide a greater outward force on the electrode sheet and better remove the wrinkles on the electrode tab, which is not shown in the figure.

[0084] Example 6:

[0085] This embodiment provides a coating device, which, in addition to the wrinkle smoothing and removing device of any one of the above embodiments 1-9, further comprises:

[0086] The oven 11 has two wrinkle-smoothing and wrinkle-removing devices symmetrically arranged, and are respectively located on both sides of the outlet of the oven 11.

[0087] In this technical solution, if Figure 1 As shown, two smoothing and wrinkle-removing devices are respectively located on both sides of the outlet of the oven 11, and are used to smooth and wrinkle-remove the left and right sides of the electrode respectively.

[0088] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A wrinkle smoothing and removing device, characterized in that: include: A base (1), wherein a support shaft (6) is provided on the base (1) along a first direction (Y); A pressing roller mechanism (2) includes an upper pressing roller assembly (21) and a lower pressing roller assembly (22) arranged up and down along a first direction (Y), and the upper pressing roller assembly (21) and the lower pressing roller assembly (22) both include a roller seat (23) and a pressing roller unit (24) connected to the roller seat (23), and both roller seats (23) are mounted on a support shaft (6) so as to be movable and adjustable along the first direction (Y), and both roller seats (23) are rotatable and adjustable around the support shaft (6), and a wrinkle removal gap (7) for the tab to pass through is formed between the two pressing roller units (24); The pressure regulating mechanism (3) is mounted on the support shaft (6) and is used to regulate the pressing force of the upper roller pressing assembly (21) and the lower roller pressing assembly (22) on the tab.

2. The wrinkle smoothing and removing device according to claim 1, characterized in that: Also includes: An angle adjustment rod (4), the angle adjustment rod (4) passes through two roller seats (23) along a first direction (Y); The base (1) is provided with an arc-shaped limiting hole (8), and the angle adjustment rod (4) is movably and adjustablely arranged in the arc-shaped limiting hole (8).

3. The wrinkle smoothing and removing device according to claim 1, characterized in that: Also includes: A lower limit assembly (5) is mounted on the support shaft (6) and is located below the roller seat (23) of the lower roller assembly (22), and is used to adjust the height of the lower roller assembly (22) in the first direction (Y).

4. The wrinkle smoothing and removing device according to claim 3, characterized in that: The pressure regulating mechanism (3) comprises: An upper limit assembly (31) is mounted on the support shaft (6) and is located above the roller seat (23) of the upper roller assembly (21); The elastic member (32) is arranged between the upper limit assembly (31) and the roller seat (23) of the upper roller pressing assembly (21).

5. The wrinkle smoothing and removing device according to claim 4, characterized in that: The lower limit assembly (5) and the upper limit assembly (31) both include: An annular hoop (9), the annular hoop (9) is arranged on the support shaft (6) and can be moved and adjusted along a first direction (Y); The fastening screw (10) is used to lock the annular hoop (9) so that the annular hoop (9) is fixed on the supporting shaft (6).

6. The wrinkle smoothing and removing device according to claim 4, characterized in that: The elastic member (32) is a spring, which is sleeved on the support shaft (6), and the two ends of the spring respectively abut against the upper limit assembly (31) and the roller seat (23) of the upper roller assembly (21).

7. The wrinkle smoothing and removing device according to claim 1, characterized in that: The pressing roller unit (24) comprises: A roller shaft (241) is mounted on a roller seat (23); The rubber roller (242) is sleeved on the roller shaft (241).

8. The wrinkle smoothing and removing device according to claim 7, characterized in that: The rubber roller (242) is a multi-section structure and is arranged along the length direction of the roller shaft (241).

9. The wrinkle smoothing and removing device according to claim 7, characterized in that: The outer peripheral wall of the rubber roller (242) is provided with wrinkle-removing threads.

10. A coating device, characterized in that: The wrinkle smoothing and removing device according to any one of claims 1 to 9 further comprises: The oven (11) comprises two wrinkle-smoothing and wrinkle-removing devices that are symmetrically arranged and are respectively located on both sides of the oven (11) outlet.

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