Compression roller device and dry coating equipment
By arranging the film-forming pressure roller group, thinning pressure roller group and composite pressure roller group of the pressure roller device along the Z direction, the maintenance problem of the pressure roller device in the existing technology is solved, and convenient maintenance and safety are improved.
Patent Information
- Application Number
- CN202422412573.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-09-30
AI Technical Summary
In the prior art, when the pressure roller device is performing machine maintenance operations such as roller gap adjustment or roller cleaning, it is difficult to maintain the middle roller, and there are safety hazards.
The pressure roller device is arranged along the Z direction, including a film-forming pressure roller group, a thinning pressure roller group and a composite pressure roller group. Pressure rollers at different heights can be maintained by simple actions such as squatting, bending over, and standing, thereby improving operational convenience and safety.
The convenient maintenance of the pressing roller device is realized, the operational safety is improved, and the difficulty and risk of manual operation are reduced.
Smart Images
Figure CN223405228U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of dry coating equipment, and in particular relates to a pressure roller device and dry coating equipment. Background Art
[0002] Pole dry coating is the most important step in the lithium-ion battery production process. The roller device of the dry coating equipment needs to be adjusted and maintained before and after operation.
[0003] In the prior art, when the pressure roller device is performing machine maintenance operations such as roller gap adjustment or roller cleaning, it is difficult to maintain the middle roller due to space and working conditions, and there are great safety hazards during manual operation. Utility Model Content
[0004] The purpose of the embodiments of the present application is to provide a pressure roller device and dry coating equipment.
[0005] According to a first aspect of an embodiment of the present application, a pressing roller device is provided, comprising:
[0006] a film-forming roller assembly, the film-forming roller assembly comprising a first roller and a second roller, the first roller and the second roller being spaced apart along the X direction, and the diameter of the first roller being the same as the diameter of the second roller;
[0007] A thinning pressing roller group, the thinning pressing roller group is arranged adjacent to the first pressing roller along the Z direction;
[0008] A composite pressing roller group is arranged adjacent to the thinning pressing roller group along the Z direction.
[0009] Optionally, the composite pressing roller group includes a third pressing roller and a fourth pressing roller, and the third pressing roller is adjacent to the fourth pressing roller along the Z direction.
[0010] Optionally, the third pressing roller and the fourth pressing roller rotate in opposite directions.
[0011] Optionally, the thinning roller group includes a fifth roller, and the roller gap between the fifth roller and the first roller is larger than the roller gap between the fifth roller and the third roller.
[0012] Optionally, the thinning roller group includes a plurality of fifth rollers, and the plurality of fifth rollers are adjacently arranged along the Z direction.
[0013] Optionally, the roller gap between two adjacent fifth pressing rollers decreases successively from the film-forming pressing roller group to the composite pressing roller group.
[0014] Optionally, the rotation direction of the first pressing roller is opposite to the rotation direction of the second pressing roller.
[0015] According to a second aspect of an embodiment of the present application, a dry coating device is provided, comprising:
[0016] At least one of the above-mentioned pressing roller devices;
[0017] The first blanking mechanism is arranged above the roller gap between the first pressing roller and the second pressing roller in the Z direction.
[0018] Optionally, the dry coating device further includes a reeling mechanism, the reeling mechanism and the composite pressing roller group are spaced apart along the X direction, and the reeling mechanism is used to place and release the material roll.
[0019] Optionally, the dry coating equipment includes:
[0020] Two pressing roller devices, the two pressing roller devices are arranged along the X direction;
[0021] a guide pressing roller group, wherein the guide pressing roller group is arranged between the fourth pressing roller of one of the pressing roller devices and the fourth pressing roller of the other pressing roller device;
[0022] A second unloading mechanism, wherein in the Z direction, the first unloading mechanism is arranged above one of the pressing roller devices, and the second unloading mechanism is arranged above the other pressing roller device;
[0023] The unwinding mechanism and the guide roller group are arranged along the Z direction.
[0024] One technical effect of the embodiments of the present application is that the pressure roller device is arranged along the Z direction. During the later machine maintenance operations such as adjusting the roller gap of the film-forming pressure roller group, the thinning pressure roller group, and the composite pressure roller group, or cleaning the pressure rollers, when manual maintenance is performed, the pressure rollers at different heights can be easily maintained by squatting, bending over, or standing, thereby improving the convenience of manual maintenance operations on the pressure rollers and also improving the operational safety of the equipment.
[0025] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.
[0027] Figure 1 Schematic diagram of the structure of the dry coating equipment in the embodiment of the present application;
[0028] Figure 2 Schematic diagram of the structure of the dry coating equipment in the embodiment of the present application;
[0029] Figure 3 This is a schematic structural diagram of the dry coating equipment in an embodiment of the present application.
[0030] Explanation of the accompanying drawings: pressure roller device 100; film-forming pressure roller group 1; first pressure roller 11; second pressure roller 12; thinning pressure roller group 2; fifth pressure roller 21; composite pressure roller group 3; third pressure roller 31; fourth pressure roller 32; dry coating equipment 200; first unloading mechanism 4; unwinding mechanism 5; second unloading mechanism 6; guide pressure roller group 7. DETAILED DESCRIPTION
[0031] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application.
[0032] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.
[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.
[0034] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.
[0035] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0036] First, the X direction and Z direction mentioned in the embodiment of this application are shown in the attached diagram. Figure 1 、 Figure 2 and Figure 3 The marked direction, where the X direction and the Z direction intersect.
[0037] like Figure 1 and Figure 2 As shown, according to the first aspect of an embodiment of the present application, a pressing roller device 100 is provided, comprising a film-forming pressing roller group 1, a thinning pressing roller group 2 and a composite pressing roller group 3; the film-forming pressing roller group 1 comprises a first pressing roller 11 and a second pressing roller 12, the first pressing roller 11 and the second pressing roller 12 are spaced apart along the X direction, and the diameter of the first pressing roller 11 is the same as the diameter of the second pressing roller 12; the thinning pressing roller group 2 is adjacent to the first pressing roller 11 along the Z direction; the composite pressing roller group 3 is adjacent to the thinning pressing roller group 2 along the Z direction.
[0038] like Figure 1 and Figure 2 As shown, the pressing roller device 100 includes a film-forming pressing roller group 1, a thinning pressing roller group 2 and a composite pressing roller group 3; wherein the film-forming pressing roller group 1 is used to press the powder or slurry into a film; the thinning pressing roller group 2 is used to thin the film to a preset thickness; and the composite pressing roller group 3 is used to press the film onto the substrate.
[0039] To further illustrate, the film-forming roller assembly 1 includes a first roller 11 and a second roller 12, which are arranged along the X-direction. A powder or slurry is positioned between the first and second rollers 11, 12, and is pressed into a film through the gap between the first and second rollers 11, 12. The diameters of the first and second rollers 11, 12 are identical, ensuring a more uniform thickness and improving film quality. The thinning roller assembly 2 and the composite roller assembly 3 are positioned sequentially below the first roller 11 along the Z-direction, which also represents the height of the roller assembly 100.
[0040] Therefore, the pressure roller device 100 of this embodiment is arranged along the Z direction. When performing machine maintenance operations such as adjusting the roller gap of the film-forming pressure roller group 1, the thinning pressure roller group 2, and the composite pressure roller group 3, or cleaning the pressure rollers in the later stage, when manual maintenance is performed, it is only necessary to squat, bend over, or stand up to easily maintain the pressure rollers at different heights, thereby improving the convenience of manual maintenance operations on the pressure rollers and also improving the operational safety of the equipment.
[0041] In an optional embodiment, the composite pressing roller set 3 includes a third pressing roller 31 and a fourth pressing roller 32 , and the third pressing roller 31 and the fourth pressing roller 32 are adjacently arranged along the Z direction.
[0042] like Figure 1 and Figure 2 As shown, the third pressing roller 31 and the fourth pressing roller 32 are arranged along the Z direction, and a roller gap is formed between the third pressing roller 31 and the fourth pressing roller 32. The diaphragm and the substrate pass through the roller gap between the third pressing roller 31 and the fourth pressing roller 32 at the same time, thereby pressing the diaphragm and the substrate together; and the third pressing roller 31 and the fourth pressing roller 32 are arranged along the Z direction, which is also convenient for later manual maintenance and inspection of the third pressing roller 31 and the fourth pressing roller 32.
[0043] In an optional embodiment, the third pressing roller 31 rotates in opposite directions to the fourth pressing roller 32. When the film and substrate pass through the nip between the third pressing roller 31 and the fourth pressing roller 32, the third pressing roller 31 and the fourth pressing roller 32 rotate in different directions, so that the film and substrate move in the same direction, and the third pressing roller 31 and the fourth pressing roller 32 can press the film and substrate together.
[0044] In an alternative embodiment, Figure 1 As shown, the thinning roller group 2 includes a fifth roller 21 , and the roller gap between the fifth roller 21 and the first roller 11 is larger than the roller gap between the fifth roller 21 and the third roller 31 .
[0045] like Figure 1 As shown, the thinning roller group 2 includes a fifth roller 21, that is, the thinning roller group 2 has only one fifth roller 21, and the fifth roller 21 is located between the first roller 11 and the third roller 31. The gap between the fifth roller 21 and the first roller 11 is larger than the gap between the fifth roller 21 and the third roller 31. Therefore, after the diaphragm is pressed into shape by the first roller 11 and the second roller 12, the diaphragm is thinned by the first roller 11 and the fifth roller 21, the third roller 31 and the fifth roller 21; in this embodiment, the positional relationship between the first roller 11, the third roller 31 and the fifth roller 21 is utilized to achieve thinning of the diaphragm, and the structure is simple and the cost is low.
[0046] In an alternative embodiment, Figure 2 As shown, the thinning roller group 2 includes a plurality of fifth rollers 21, and the plurality of fifth rollers 21 are adjacently arranged along the Z direction; specifically, the plurality of fifth rollers 21 are arranged in sequence along the Z direction, that is, the plurality of fifth rollers 21 are arranged in the height direction of the roller device 100, which is convenient for later manual maintenance and inspection of the plurality of fifth rollers 21.
[0047] In an optional embodiment, the gap between two adjacent fifth rollers 21 decreases from the film-forming roller group 1 to the composite roller group 3. Specifically, since multiple fifth rollers 21 are adjacently arranged along the Z direction, a gap is formed between two adjacent fifth rollers 21. The distance between the gaps between two adjacent fifth rollers 21 close to the film-forming roller group 1 is greater than the distance between the gaps between two adjacent fifth rollers 21 away from the film-forming roller group 1. In other words, the gap gradually decreases in the direction of transfer of the film sheet, thereby thinning the thickness of the film sheet to a preset thickness. By providing multiple fifth rollers 21, the thickness of the film sheet can be made more uniform, thereby improving the quality of the film sheet.
[0048] In an optional embodiment, the rotation direction of the first pressing roller 11 is opposite to that of the second pressing roller 12. When the powder or slurry enters the nip between the first pressing roller 11 and the second pressing roller 12, the rotation directions of the first pressing roller 11 and the second pressing roller 12 are opposite, so that the powder or slurry can move in the same direction after passing through the nip between the first pressing roller 11 and the second pressing roller 12, thereby allowing the first pressing roller 11 and the second pressing roller 12 to press out a film.
[0049] According to the second aspect of the embodiment of the present application, a dry coating device 200 is provided, comprising the above-mentioned pressing roller device 100 and a first unloading mechanism 4; in the Z direction, the first unloading mechanism 4 is arranged above the roller gap between the first pressing roller 11 and the second pressing roller 12.
[0050] like Figure 1 and Figure 2 As shown, the dry coating equipment 200 includes a pressing roller device 100 and a first unloading mechanism 4. The first unloading mechanism 4 is arranged upstream of the pressing roller device 100. The first unloading mechanism 4 contains powder or slurry for pressing the membrane.
[0051] Further explanation: the first unloading mechanism 4 is arranged above the roller gap between the first pressing roller 11 and the second pressing roller 12, and the powder or slurry is transported to the roller gap between the first pressing roller 11 and the second pressing roller 12 through the first unloading mechanism 4, and the powder or slurry is pressed into a membrane by the first pressing roller 11 and the second pressing roller 12.
[0052] In an optional embodiment, the dry coating device 200 further includes an unwinding mechanism 5 , which is spaced apart from the composite pressing roller group 3 along the X direction. The unwinding mechanism 5 is used to place and release the material roll.
[0053] like Figure 1 and Figure 2 As shown, the dry coating equipment 200 also includes a unwinding mechanism 5, which is used to place the base material roll and release the base material roll; since the third pressure roller 31 and the fourth pressure roller 32 of the composite pressure roller group 3 are arranged along the Z direction, the unwinding mechanism 5 and the composite pressure roller group 3 are spaced apart along the X direction, so that the substrate released from the base material roll on the unwinding mechanism 5 can pass through the roller gap between the third pressure roller 31 and the fourth pressure roller 32, thereby pressing the film onto the substrate.
[0054] In an optional embodiment, the dry coating equipment 200 includes two pressure roller devices 100, a guide pressure roller group 7, a second unloading mechanism 6 and a rewinding mechanism 5, and the two pressure roller devices 100 are arranged along the X direction; the guide pressure roller group 7 is arranged between the fourth pressure roller 32 of one of the pressure roller devices 100 and the fourth pressure roller 32 of the other pressure roller device 100; in the Z direction, the first unloading mechanism 4 is arranged above one of the pressure roller devices 100, and the second unloading mechanism 6 is arranged above the other pressure roller device 100; the rewinding mechanism 5 and the guide pressure roller group 7 are arranged along the Z direction.
[0055] like Figure 3As shown, the dry coating equipment 200 includes two pressing roller devices 100, a guide pressing roller group 7, a second unloading mechanism 6 and an unwinding mechanism 5; wherein each pressing roller device 100 is used to press a film, and the two films are pressed on both sides of the substrate respectively, thereby forming a double-sided composite structure.
[0056] To further illustrate, the first unloading mechanism 4 provides powder or slurry to one of the pressing roller devices 100, and the second unloading mechanism 6 provides powder or slurry to the other pressing roller device 100; the two pressing roller devices 100 are arranged at intervals along the X direction, and a guide pressing roller group 7 is arranged between the two pressing roller devices 100. In order to enable the film pressed by one of the pressing roller devices 100 to be transferred to the guide pressing roller group 7, the film pressed by the two pressing roller devices 100 is also transferred to the guide pressing roller group 7. The unwinding mechanism 5 and the guide pressing roller group 7 are arranged along the Z direction. The unwinding mechanism 5 is used to place the base material roll and release the base material. The base material released by the base material roll on the unwinding mechanism 5 passes through the guide pressing roller group 7, and the two films are respectively pressed on both sides of the base material, thereby forming a double-sided composite structure.
[0057] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.
Claims
1. A pressing roller device, characterized in that: include: a film-forming roller assembly, the film-forming roller assembly comprising a first roller and a second roller, the first roller and the second roller being spaced apart along the X direction, and the diameter of the first roller being the same as the diameter of the second roller; A thinning pressing roller group, the thinning pressing roller group is arranged adjacent to the first pressing roller along the Z direction; A composite pressing roller group is arranged adjacent to the thinning pressing roller group along the Z direction.
2. The pressing roller device according to claim 1, characterized in that: The composite pressing roller group includes a third pressing roller and a fourth pressing roller, and the third pressing roller is adjacent to the fourth pressing roller along the Z direction.
3. The pressing roller device according to claim 2, characterized in that: The third pressing roller and the fourth pressing roller rotate in opposite directions.
4. The pressing roller device according to claim 2, characterized in that: The thinning roller group includes a fifth roller, and the roller gap between the fifth roller and the first roller is larger than the roller gap between the fifth roller and the third roller.
5. The pressing roller device according to claim 1, characterized in that: The thinning roller group includes a plurality of fifth rollers, and the plurality of fifth rollers are adjacently arranged along the Z direction.
6. The pressing roller device according to claim 5, characterized in that: The roller gap between two adjacent fifth pressing rollers decreases successively from the film forming pressing roller group to the composite pressing roller group.
7. The pressing roller device according to claim 1, characterized in that: The rotation direction of the first pressing roller is opposite to the rotation direction of the second pressing roller.
8. A dry coating device, characterized in that: include: At least one pressing roller device according to any one of claims 1 to 7; The first blanking mechanism is arranged above the roller gap between the first pressing roller and the second pressing roller in the Z direction.
9. The dry coating equipment according to claim 8, characterized in that The dry coating equipment further includes an unwinding mechanism, which is spaced apart from the composite pressing roller group along the X direction, and is used for placing and releasing the material roll.
10. The dry coating equipment according to claim 8, characterized in that The dry coating equipment includes: Two pressing roller devices, the two pressing roller devices are arranged along the X direction; a guide pressing roller group, wherein the guide pressing roller group is arranged between the fourth pressing roller of one of the pressing roller devices and the fourth pressing roller of the other pressing roller device; A second unloading mechanism, wherein in the Z direction, the first unloading mechanism is arranged above one of the pressing roller devices, and the second unloading mechanism is arranged above the other pressing roller device; The unwinding mechanism and the guide roller group are arranged along the Z direction.