Regulation and control type die head for partition coating
Through the controlled partition coating die head, two sets of feed modules and servo intermittent control valves, the precise control of complex coating effects during the manufacturing process of 3C digital battery is achieved, and the problem that the existing die head cannot meet the special coating requirements is solved, reducing costs and improving coating quality.
Patent Information
- Application Number
- CN202422871712.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-11-25
AI Technical Summary
The existing coating die heads are difficult to achieve complex and fine coating requirements in the manufacturing process of 3C digital batteries, such as L-shaped coating, small square coating, small square gap coating and symmetrical L-shaped coating.
The modular partition coating die head is adopted to transport slurry to the first slurry cavity and the second slurry cavity through two sets of feed modules, and the first flow channel and the second flow channel are used to coat the slurry combination on the surface of the electrode sheet, and the coating frequency and duration are controlled with a servo intermittent control valve to achieve a special coating effect. The slurry is stored in the cavity when the coating is stopped to avoid overflow.
The special coating effect in the manufacturing process of 3C digital battery is achieved, which reduces production costs and maintenance time, improves coating accuracy and uniformity, and reduces slurry waste.
Smart Images
Figure CN223288397U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of coating equipment, and in particular relates to a controllable zoned coating die head. Background Art
[0002] In modern industrial manufacturing, coating technology is a key process for achieving surface coatings on materials. Precision coating technology is particularly crucial for improving product quality and performance in industries such as batteries, electronics, pharmaceuticals, and packaging. As a core component in the coating process, the design and functionality of the coating die directly impact coating quality, efficiency, and material utilization.
[0003] The existing coating die head mainly achieves different coating effects by changing the gasket design and adding intermittent valves, such as continuous coating, stripe coating, gap coating and zebra coating (such as Figure 1 These coating effects can meet the needs of general industrial applications, but in some special application scenarios, such as the manufacturing process of 3C digital batteries, conventional coating dies and coating methods cannot meet the more complex and sophisticated coating requirements.
[0004] The manufacturing of 3C digital batteries has strict requirements on coating accuracy and pattern, such as L-shaped coating, small square coating, small square gap coating and symmetrical L-shaped coating (such as Figure 1 The special coating effect is of great significance for improving the performance and safety of 3C digital batteries. However, due to design limitations, existing coating dies are difficult to achieve these complex coating patterns.
[0005] Based on the above problems, this application document proposes a regulated partition coating die to achieve a special coating effect in the manufacturing process of 3C digital batteries. Utility Model Content
[0006] The purpose of the utility model is to provide a regulated partition coating die head, which transports slurry to the inside of a first slurry chamber and a second slurry chamber respectively through two sets of feeding modules, and drains and coats the slurry inside the first slurry chamber and the second slurry chamber respectively through a first flow channel and a second flow channel. The slurry coated on the surface of the electrode sheet through the first flow channel and the second flow channel is combined to form a special coating effect, thereby achieving a special coating effect in the manufacturing process of 3C digital batteries.
[0007] The technical solutions adopted by this utility model are as follows:
[0008] A regulated partition coating die head comprises a first die head, a second die head is assembled at the upper end of the first die head, a pad is assembled between the first die head and the second die head, a first slurry cavity and a second slurry cavity are opened inside the first die head, a plurality of first flow channels are opened at the upper end of the pad, a plurality of second flow channels are opened at the lower end of the pad, a plurality of first diversion holes and a plurality of second diversion holes are opened inside the pad, the first diversion hole and the second slurry cavity and the second diversion hole and the first slurry cavity are adapted to each other, and the first flow channel and the second slurry cavity are connected through the first diversion hole, and the second flow channel and the first slurry cavity are connected through the second diversion hole.
[0009] In a preferred embodiment, a first servo intermittent control valve and a second servo intermittent control valve are fixed on one side of the first die head, a first feed cavity and a second feed cavity are opened inside the first die head, the first slurry cavity and the first servo intermittent control valve are connected through the first feed cavity, and the second slurry cavity and the second servo intermittent control valve are connected through the second feed cavity.
[0010] In a preferred embodiment, a plurality of brackets are fixed to the upper end of the second die head, a micrometer is installed inside the bracket, a T-block is installed at the lower end of the micrometer, and the T-block is adapted to the backing plate.
[0011] In a preferred embodiment, a plurality of threaded bottom holes are evenly provided inside the first die head, a plurality of screw through holes are evenly provided inside the second die head, and a plurality of screw avoidance holes are evenly provided inside the pad. There is a one-to-one correspondence between the plurality of threaded bottom holes and the plurality of screw through holes, as well as between the plurality of screw through holes and the plurality of screw avoidance holes. In the working state, the first die head and the second die head are fixedly connected.
[0012] In a preferred embodiment, a first rotating shaft block is fixed to one side of the first die head, and a second rotating shaft block is fixed to one side of the second die head. The first rotating shaft block and the second rotating shaft block are rotatably connected. When not in operation, the first die head and the second die head are rotatably connected.
[0013] In a preferred embodiment, the thickness of the backing plate is denoted as H1, the depths of the first flow channel and the second flow channel are both denoted as H2, and H2≤0.4H1.
[0014] In a preferred solution, the number of the second flow channel is at least one.
[0015] In a preferred embodiment, the internal threads of the first die head are connected to a plurality of threaded rods, and the threaded rods pass through the interior of the first die head.
[0016] The technical effects achieved by this utility model are:
[0017] The utility model uses two sets of feeding modules to transport slurry into the first slurry cavity and the second slurry cavity respectively, and drains and coats the slurry inside the first slurry cavity and the second slurry cavity respectively through the first flow channel and the second flow channel. The slurry coated on the surface of the electrode sheet through the first flow channel and the second flow channel is combined to form a special coating effect, thereby achieving a special coating effect in the manufacturing process of 3C digital batteries;
[0018] The utility model stores the slurry through the first slurry chamber and the second slurry chamber respectively. When the first flow channel and / or the second flow channel stops coating, the slurry is stored inside the first slurry chamber and the second slurry chamber under the action of gravity. This not only avoids the deviation of the coating effect and coating thickness caused by the continued flow of the slurry, but also avoids the waste of slurry and reduces production costs.
[0019] In the process of coating the electrode sheet, the utility model uses the first die head to transport the slurry. Therefore, when maintaining the device, only the first die head and the backing plate need to be cleaned, which greatly reduces the maintenance time and improves the maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a common schematic diagram of coating effects;
[0021] Figure 2 It is a schematic structural diagram of the utility model as a whole;
[0022] Figure 3 It is a rear view of the overall structure of the utility model;
[0023] Figure 4 It is a cross-sectional view of the overall structure of the utility model;
[0024] Figure 5 This utility model Figure 3 A partial enlarged view of point A in the middle;
[0025] Figure 6 This is a schematic structural diagram of the first die head of the utility model;
[0026] Figure 7 It is a structural diagram of the pad of the utility model;
[0027] Figure 8 This is a bottom view of the structure of the pad of the utility model;
[0028] Figure 9 This is a schematic diagram of the flow of the slurry inside the first die head of the utility model;
[0029] Figure 10 This is a schematic diagram of the L-shaped coating style of the utility model;
[0030] Figure 11 This is a schematic diagram of the small square coating style of the utility model;
[0031] Figure 12 This is a schematic diagram of the small square gap coating style of the utility model;
[0032] Figure 13 This is a schematic diagram of the symmetrical L-shaped coating style of the utility model;
[0033] Figure 14 This is a schematic diagram of the small square intermittent coating style of the utility model;
[0034] Figure 15 It is a structural schematic diagram of the pad during intermittent coating of small squares of the utility model.
[0035] In the accompanying drawings, the components represented by the reference numerals are as follows:
[0036] 10. First die head; 11. First slurry chamber; 12. Second slurry chamber; 13. First servo intermittent control valve; 14. Second servo intermittent control valve; 15. First feed chamber; 16. Second feed chamber; 17. Threaded bottom hole; 18. First rotating shaft block; 19. Threaded rod; 20. Second die head; 21. Bracket; 22. Micrometer; 23. T-block; 24. Screw through hole; 25. Second rotating shaft block; 30. Pad; 31. First flow channel; 32. Second flow channel; 33. First diversion hole; 34. Second diversion hole; 35. Screw avoidance hole. DETAILED DESCRIPTION
[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.
[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0039] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive with other embodiments.
[0040] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing embodiments of the present invention, cross-sectional views of device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.
[0041] Please see the attached Figures 2 to 9 As shown, it is the first embodiment of the utility model, which provides a regulated partition coating die head, including a first die head 10, a second die head 20 is installed at the upper end of the first die head 10, a pad 30 is installed between the first die head 10 and the second die head 20, the interior of the first die head 10 is sequentially provided with a first slurry cavity 11 and a second slurry cavity 12 from one side to the other, a plurality of first flow channels 31 are opened at the upper end of the pad 30, a plurality of second flow channels 32 are opened at the lower end of the pad 30, a plurality of first diversion holes 33 and a plurality of second diversion holes 34 are opened inside the pad 30, the first diversion hole 33 and the second slurry cavity 12 and the second diversion hole 34 and the first slurry cavity 11 are all adapted to each other, and the first flow channel 31 and the second slurry cavity 12 are connected through the first diversion hole 33, and the second flow channel 32 and the first slurry cavity 11 are connected through the second diversion hole 34.
[0042] Furthermore, the number of the second flow channel 32 is at least one.
[0043] Here, the number and position of the first flow channels 31 and the number and position of the second flow channels 32 need to be customized according to the coating effect required in the manufacturing process of 3C digital batteries. The number and position of the first flow channels 31 and the second flow channels 32 on the pad 30 in the accompanying drawings only represent one style and do not constitute a specific limitation.
[0044] It should be noted that a plurality of threaded bottom holes 17 are uniformly provided inside the first die head 10, a plurality of screw through holes 24 are uniformly provided inside the second die head 20, and a plurality of screw avoidance holes 35 are uniformly provided inside the pad 30. There is a one-to-one correspondence between the plurality of threaded bottom holes 17 and the plurality of screw through holes 24, as well as between the plurality of screw through holes 24 and the plurality of screw avoidance holes 35. In the working state, the first die head 10 and the second die head 20 are fixedly connected by means of bolts passing through the screw through holes 24 and the interior of the screw avoidance holes 35 and being threadedly connected to the threaded bottom holes 17; further, a first rotating shaft block 18 is fixed to one side of the first die head 10, and a plurality of threaded rods 19 are threadedly connected to the interior of the first die head 10. The threaded rods 19 pass through the interior of the first die head 10, and a second rotating shaft block 25 is fixed to one side of the second die head 20. The first rotating shaft block 18 and the second rotating shaft block 25 are rotatably connected. In the non-working state, the first die head 10 and the second die head 20 are rotatably connected by the cooperation of the first rotating shaft block 18 and the second rotating shaft block 25.
[0045] In this embodiment, before coating the electrode sheet of the 3C digital battery, according to the required coating effect, a suitable pad 30 is replaced and assembled between the first die head 10 and the second die head 20. When coating, the slurry inside the first slurry chamber 11 flows through the second diverter hole 34 and the second flow channel 32 in sequence and is coated on the electrode sheet. The slurry inside the second slurry chamber 12 flows through the first diverter hole 33 and the first flow channel 31 in sequence and is coated on the electrode sheet. The flow of the slurry inside the second slurry chamber 12 and the first slurry chamber 11 is guided by the first flow channel 31 and the second flow channel 32 respectively. At the same time, the first servo intermittent control valve 13 and the second servo intermittent control valve 14 are used. The coating frequency and coating duration of the first flow channel 31 and the second flow channel 32 are controlled respectively to achieve different coating effects. In this process, when coating is stopped, the slurry is stored in the first slurry chamber 11 and the second slurry chamber 12 under the action of gravity, which reduces the probability of the slurry overflowing from the first flow channel 31 and / or the second flow channel 32. It not only avoids deviations in the coating effect and coating thickness, but also avoids waste of slurry and reduces production costs. Moreover, since the slurry is transported through the first die head 10 during the maintenance of the device, only the first die head 10 and the pad 30 need to be cleaned, which greatly reduces the maintenance time and improves the maintenance efficiency.
[0046] Next, please refer to Figure 3 and Figure 4 As shown, a first servo intermittent control valve 13 and a second servo intermittent control valve 14 are fixed on one side of the first die head 10, and a first feed cavity 15 and a second feed cavity 16 are opened inside the first die head 10. The first slurry cavity 11 and the first servo intermittent control valve 13 are connected through the first feed cavity 15, and the second slurry cavity 12 and the second servo intermittent control valve 14 are connected through the second feed cavity 16.
[0047] It should be noted that two sets of feeding modules are used in conjunction with this device, wherein the output end of one set of feeding modules is connected to the input end of the first servo intermittent control valve 13, and the output end of the other set of feeding modules is connected to the input end of the second servo intermittent control valve 14, and the slurry is respectively input into the first slurry chamber 11 and the second slurry chamber 12 through the two sets of feeding modules.
[0048] In this embodiment, through the cooperation of the first servo intermittent control valve 13 and the second servo intermittent control valve 14, intermittent feeding can be achieved to the inside of the first slurry chamber 11 and the second slurry chamber 12 respectively, thereby achieving the purpose of intermittent coating, and the slurries intermittently coated through the first flow channel 31 and the second flow channel 32 are spliced and combined, thereby achieving a special coating effect in the 3C digital battery manufacturing process.
[0049] Secondly, please also refer to Figures 2 to 4 A plurality of brackets 21 are fixed to the upper end of the second die head 20 from one end to the other end, a micrometer 22 is assembled inside the bracket 21, a T-block 23 is assembled at the lower end of the micrometer 22, and the T-block 23 is adapted to the pad 30.
[0050] In this embodiment, the position of the T-block 23 is adjusted by the micrometer 22, so that the size of the slit gap can be accurately controlled, ensuring that the slurry can be evenly coated on the surface of the electrode sheet during the coating process, thereby improving the coating accuracy and uniformity.
[0051] In a preferred embodiment, the thickness of the backing plate 30 is recorded as H1, the depths of the first flow channel 31 and the second flow channel 32 are both recorded as H2, and H2≤0.4H1.
[0052] In this embodiment, due to the provision of the first flow channel 31 and the second flow channel 32 , the local thickness of the pad 30 is reduced. By setting the above solution, the strength of the pad 30 is improved while ensuring the integrity of the pad 30 .
[0053] In a specific embodiment, see Figure 10 As shown, when L coating is performed, slurry is transported to the first slurry chamber 11 and the second slurry chamber 12 respectively through two sets of feeding modules, and the slurry inside the first slurry chamber 11 and the second slurry chamber 12 flows out through the first flow channel 31 and the second flow channel 32 respectively and is coated on the surface of the electrode sheet of the 3C digital analog battery. In this process, the coating frequency of the first flow channel 31 and the second flow channel 32 is controlled by the first servo intermittent control valve 13 and the second servo intermittent control valve 14 respectively. In the same coating cycle, the coating time of the first flow channel 31 is longer than the coating time of the second flow channel 32, and the electrode sheet can be L-shaped coated. Among them, the structural style of the pad 30 can refer to Figure 10 As shown, of course, the specific structural style of the pad 30 can be adjusted according to specific production requirements, and this does not constitute a specific limitation.
[0054] It should be noted that the coating cycle refers to the time period from the start of a single coating to the start of the next coating.
[0055] In another specific embodiment, see Figure 11 As shown, when performing small square coating, the slurry is respectively transported to the first slurry chamber 11 and the second slurry chamber 12 through two sets of feeding modules. The slurry inside the first slurry chamber 11 and the second slurry chamber 12 flows out through the first flow channel 31 and the second flow channel 32 respectively and is coated on the surface of the electrode sheet of the 3C digital analog battery. In this process, the first flow channel 31 always coats the electrode sheet, and the second flow channel 32 intermittently coats the electrode sheet, so that the electrode sheet can be coated in a small square pattern. Among them, the structural style of the pad 30 can refer to Figure 11As shown, of course, the specific structural style of the pad 30 can be adjusted according to specific production requirements, and this does not constitute a specific limitation.
[0056] In another specific embodiment, see Figure 12 As shown, when performing small square gap coating, the slurry is transported to the first slurry cavity 11 and the second slurry cavity 12 respectively through two sets of feeding modules. The slurry inside the first slurry cavity 11 and the second slurry cavity 12 flows out through the first flow channel 31 and the second flow channel 32 respectively and is coated on the surface of the electrode sheet of the 3C digital analog battery. In this process, the first flow channel 31 always coats the electrode sheet, and the second flow channel 32 intermittently coats the electrode sheet, so that the electrode sheet can be coated in a small square pattern. Among them, the structural style of the pad 30 can refer to Figure 12 As shown, of course, the specific structural style of the pad 30 can be adjusted according to specific production requirements, and this does not constitute a specific limitation.
[0057] In another specific embodiment, see Figure 13 As shown, when performing symmetrical L-shaped coating, the slurry is respectively transported to the first slurry chamber 11 and the second slurry chamber 12 through two sets of feeding modules, and the slurry inside the first slurry chamber 11 and the second slurry chamber 12 flows out through the first flow channel 31 and the second flow channel 32 respectively and is coated on the surface of the electrode sheet of the 3C digital analog battery. In this process, the coating frequency of the first flow channel 31 and the second flow channel 32 is controlled by the first servo intermittent control valve 13 and the second servo intermittent control valve 14 respectively. In the same coating cycle, the coating time of the first flow channel 31 is longer than the coating time of the second flow channel 32, and the electrode sheet can be symmetrically coated in an L-shaped manner. Among them, the structural style of the pad 30 can refer to Figure 13 As shown, of course, the specific structural style of the pad 30 can be adjusted according to specific production requirements, and this does not constitute a specific limitation.
[0058] In another specific embodiment, see Figures 14 and 15 As shown, when performing intermittent coating of small squares, slurry is transported to the inside of the first slurry chamber 11 and the second slurry chamber 12 respectively through two sets of feeding modules, and the slurry inside the first slurry chamber 11 and the second slurry chamber 12 flows out through the first flow channel 31 and the second flow channel 32 respectively and is coated on the surface of the electrode sheet of the 3C digital analog battery. In this process, the coating frequency of the first flow channel 31 and the second flow channel 32 is controlled by the first servo intermittent control valve 13 and the second servo intermittent control valve 14 respectively. In the same coating cycle, the coating time of the first flow channel 31 is longer than the coating time of the second flow channel 32, and the first flow channel 31 and the second flow channel 32 are coated alternately, so that the electrode sheet can be intermittently coated in small squares, wherein the structural style of the pad 30 can refer to Figure 15As shown, of course, the specific structural style of the pad 30 can be adjusted according to specific production requirements, and this does not constitute a specific limitation (here, in this embodiment, the structural top view of the pad 30 can be found in FIG. Figure 15 As shown in a, the bottom view of the structure of the pad 30 can be seen in Figure 15 (as shown in b).
[0059] The working principle of this utility model is:
[0060] Before coating the electrode sheet of the 3C digital battery, according to the required coating effect, replace the appropriate pad 30 and assemble it between the first die head 10 and the second die head 20. During coating, the slurry inside the first slurry cavity 11 flows through the second diverter hole 34 and the second flow channel 32 in sequence to be coated on the electrode sheet, and the slurry inside the second slurry cavity 12 flows through the first diverter hole 33 and the first flow channel 31 in sequence to be coated on the electrode sheet. The slurry inside the second slurry cavity 12 and the first slurry cavity 11 are respectively coated by the first flow channel 31 and the second flow channel 32. At the same time, the coating frequency and coating duration of the first flow channel 31 and the second flow channel 32 are controlled respectively by the first servo intermittent control valve 13 and the second servo intermittent control valve 14 to achieve different coating effects. In this process, when the first flow channel 31 and / or the second flow channel 32 stop coating, the slurry is stored in the first slurry chamber 11 and the second slurry chamber 12 under the action of gravity, which reduces the probability of the slurry overflowing from the first flow channel 31 and / or the second flow channel 32, thereby avoiding deviations in the coating effect and coating thickness.
[0061] The above is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.
Claims
1. A controllable zoned coating die head, characterized in that: The invention comprises a first die head (10), wherein the upper end of the first die head (10) is equipped with a second die head (20), a backing plate (30) is equipped between the first die head (10) and the second die head (20), a first slurry cavity (11) and a second slurry cavity (12) are provided inside the first die head (10), a plurality of first flow channels (31) are provided at the upper end of the backing plate (30), a plurality of second flow channels (32) are provided at the lower end of the backing plate (30), and the first slurry cavity (11) and the second slurry cavity (12) are provided inside the first die head (10). A plurality of first diversion holes (33) and a plurality of second diversion holes (34) are provided inside the pad (30), the first diversion holes (33) and the second slurry chamber (12) as well as the second diversion holes (34) and the first slurry chamber (11) are adapted to each other, and the first flow channel (31) and the second slurry chamber (12) are connected through the first diversion holes (33), and the second flow channel (32) and the first slurry chamber (11) are connected through the second diversion holes (34).
2. The controllable zoned coating die according to claim 1, characterized in that: A first servo intermittent control valve (13) and a second servo intermittent control valve (14) are fixed on one side of the first die head (10), and a first feed cavity (15) and a second feed cavity (16) are provided inside the first die head (10). The first slurry cavity (11) and the first servo intermittent control valve (13) are connected through the first feed cavity (15), and the second slurry cavity (12) and the second servo intermittent control valve (14) are connected through the second feed cavity (16).
3. The controllable zoned coating die according to claim 1, characterized in that: A plurality of brackets (21) are fixed to the upper end of the second die head (20), a micrometer (22) is installed inside the bracket (21), a T-block (23) is installed at the lower end of the micrometer (22), and the T-block (23) is adapted to the pad (30).
4. The controllable zoned coating die according to claim 1, characterized in that: The first die head (10) is evenly provided with a plurality of threaded bottom holes (17), the second die head (20) is evenly provided with a plurality of screw through holes (24), and the backing plate (30) is evenly provided with a plurality of screw avoidance holes (35). There is a one-to-one correspondence between the plurality of threaded bottom holes (17) and the plurality of screw through holes (24), and between the plurality of screw through holes (24) and the plurality of screw avoidance holes (35). In the working state, the first die head (10) and the second die head (20) are fixedly connected.
5. The controllable zoned coating die according to claim 1, characterized in that: A first rotating shaft block (18) is fixed on one side of the first die head (10), and a second rotating shaft block (25) is fixed on one side of the second die head (20). The first rotating shaft block (18) and the second rotating shaft block (25) are rotatably connected. When in a non-working state, the first die head (10) and the second die head (20) are rotatably connected.
6. The controllable zoned coating die according to claim 1, characterized in that: The thickness of the pad (30) is recorded as H1, and the depths of the first flow channel (31) and the second flow channel (32) are both recorded as H2, where H2≤0.4H1.
7. The controllable zoned coating die according to claim 1, characterized in that: The number of the second flow channel (32) is at least one.
8. The controllable zoned coating die according to claim 1, characterized in that: The internal threads of the first die head (10) are connected to a plurality of threaded rods (19), and the threaded rods (19) pass through the interior of the first die head (10).