Immersion type dispensing equipment
By using an immersion coating device, the printing roller comes into direct contact with the slurry in the tray, which solves the problem of printing roller wear, extends service life, and improves the stability and accuracy of coating effect.
Patent Information
- Application Number
- CN202423161719.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-20
AI Technical Summary
In the prior art, the printing roller comes into contact with the anilox roller when transferring the slurry, which causes wear on the printing roller and affects its service life.
The immersion coating equipment uses a roller that directly contacts the slurry in the tray, avoiding the use of an intermediate anilox roller. The roller is rotated by a rotary drive mechanism to transfer the slurry onto the diaphragm, reducing wear.
It extends the service life of the printing roller, reduces production costs, improves the accuracy and stability of the coating effect, and reduces the occurrence of uneven coating.
Smart Images
Figure CN223788816U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to point coating equipment technical field, specifically, relate to a kind of immersion point coating equipment. BACKGROUND
[0002] With the application of new energy more and more widely, the demand of new type ion battery also increases day by day, and the requirement of various characteristics of battery is also higher and higher, for example, in new energy vehicle enterprise, the life of battery, the number of charge and discharge, capacity, fast charging, low temperature working environment and so on are also more and more strict. The main function of the diaphragm is to separate the positive and negative electrodes of the battery, to prevent the two electrodes from contacting and short circuiting, and in addition, it also has the function of allowing electrolyte ions to pass through. As an important part of ion battery, the requirement of diaphragm is also higher and higher, and the performance of diaphragm determines the interface structure, internal resistance and other properties of the battery, which directly affects the capacity, cycle and safety performance of the battery. The diaphragm with excellent performance plays an important role in improving the comprehensive performance of the battery.
[0003] As for the production process of diaphragm, roll coating and spraying are commonly used at present. Compared with roll coating, spraying can reduce the coating coverage, reduce the influence on the air permeability of diaphragm, save slurry, and at the same time, it can also improve the physical properties of diaphragm. However, due to the limitation of process, the shape of spraying point is uncertain, the thickness is difficult to control, and the coverage is not easy to control, so a new production process is needed, which can not only retain the advantages of spraying, but also improve its inherent defects. The new process is point coating process. Point coating process can accurately control the coating coverage, and the coating point matrix is arranged in a circular shape, and the thickness can be accurately controlled by parameters such as plate roller, screen roller and slurry, which can better meet the requirements of battery on diaphragm.
[0004] As a new type of coating method, many processes and equipment are still in the stage of exploration and improvement. The principle is to transfer the slurry in the ink box to the plate roller through the screen roller, and then to the diaphragm. Due to the process requirements, the screen roller and the plate roller are at the same level. Because the screen roller is a surface groove liquid carrying method, under the influence of linear speed and gravity, it will inevitably cause uneven liquid carrying in the circumferential direction of the screen roller, which will affect the coating effect. In addition, due to the characteristics of groove liquid carrying of screen roller, the plate roller has to contact with the screen roller when transferring slurry, and due to the difference in material, it will inevitably cause wear of the plate roller, which will affect the service life of the plate roller. UTILITY MODEL CONTENTS
[0005] The utility model provides a kind of immersion point coating equipment, solve the problem that plate roller transfers slurry in the related art, and screen roller has contact, will cause wear of the plate roller, will affect the service life of the plate roller.
[0006] The utility model discloses a kind of immersion point coating equipment, key in at: including,
[0007] Material holding tray, the material holding tray is used to hold slurry;
[0008] Frame, the frame is located at the material holding tray periphery;
[0009] Plate roller, the plate roller rotation is arranged on the frame, the lower end of the plate roller is inserted into the material holding tray, for slurry in the material holding tray is applied to diaphragm.
[0010] It further includes receiving tray, and the receiving tray is located below the material holding tray.
[0011] The material holding tray has liquid injection port and overflow port, the receiving tray has back liquid port, the liquid injection port is used to communicate with the outlet of liquid inlet pump, the inlet of liquid inlet pump is used to communicate with slurry barrel, and the back liquid port is used to communicate with the slurry barrel.
[0012] It further includes overflow adjusting plate, and the overflow adjusting plate is arranged on the material holding tray and is located at the overflow port, and the upper end surface of the overflow adjusting plate is located below the upper end surface of the overflow port.
[0013] The overflow adjusting plate has adjusting hole group, all the adjusting hole groups are arranged along the up-down direction, all adjusting holes of a same adjusting hole group are arranged along the length direction of the overflow adjusting plate, further including locking bolt, one end of the locking bolt is screwed with the adjusting hole after passing through the material holding tray, and the other end of the locking bolt is located outside the material holding tray.
[0014] The length of the overflow adjusting plate is greater than the length of the overflow port, and the locking bolt is arranged on both sides of the overflow port.
[0015] The bottom of the material holding tray has upper dovetail groove, further including,
[0016] Base, the frame and the receiving tray are arranged on the base;
[0017] Supporting seat, the supporting seat is arranged on the base and is located outside the receiving tray, and a plurality of supporting seats are arranged on both sides of the plate roller, all the supporting seats located on a same side of the plate roller are arranged along the length direction of the plate roller, and the upper end surface of the supporting seat has lower dovetail groove.
[0018] Supporting crossbeam, the upper and lower ends of the supporting crossbeam both have dovetail strip, the dovetail strip located on the upper end of the supporting crossbeam is inserted into the upper dovetail groove, and the dovetail strip located on the lower end of the supporting crossbeam is inserted into the lower dovetail groove.
[0019] The lower dovetail groove located on one side of the printing roller is a through groove, and the end of the lower dovetail groove located on the other side of the printing roller away from the printing roller is a closed end. It also includes...
[0020] A positioning plate is disposed on the outside of the material tray and above the through groove;
[0021] A limiting bolt, the lower end of which passes through the positioning plate and is threadedly connected to the supporting beam, and the upper end of which is located above the positioning plate.
[0022] The distance from the lower end face of the material tray to the upper end face of the support base is d1, and the distance from the lowest point of the printing roller to the upper end face of the material tray is d2, where d1 ≥ d2.
[0023] Both ends of the frame have insertion holes, and the frame also includes a support plate. The support plate is inserted into the insertion holes and overlaps with the receiving tray. The upper surface of the support plate is used to contact or separate from the bottom surface of the receiving tray.
[0024] The working principle and beneficial effects of this invention are as follows: A tray holds the slurry; a frame is located around the tray; a printing roller is rotatably mounted on the frame, with its lower end extending into the tray to coat the slurry onto the diaphragm. This ensures the printing roller's coating position is in contact with the slurry in the tray. During the roller's rotation, the slurry is first transferred from the tray to the roller, and then transferred to the diaphragm, completing the coating operation. This eliminates the need for an anilox roller to transfer the slurry; the printing roller directly contacts the slurry, reducing roller wear and extending its service life. Attached Figure Description
[0025] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.
[0026] Figure 1 This is the front view of the present invention.
[0027] Figure 2 This is a top view of the present invention.
[0028] Figure 3 This is a top view of the connection between the overflow regulating plate and the material tray in this utility model.
[0029] Figure 4 This is a left view of the connection between the overflow regulating plate and the material tray in this utility model.
[0030] In the diagram: 1. Material tray, 2. Frame, 3. Printing roller, 4. Receiving tray, 5. Injection port, 6. Overflow port, 7. Return port, 8. Overflow regulating plate, 9. Regulating hole, 10. Locking bolt, 11. Upper dovetail groove, 12. Base, 13. Support base, 14. Support beam, 15. Lower dovetail groove, 16. Dovetail strip, 17. Positioning plate, 18. Limiting bolt, 19. Insertion hole, 20. Bearing plate, 21. Rotary drive mechanism. Detailed Implementation
[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.
[0032] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0033] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0034] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0035] Example, refer to Figures 1-2 As an embodiment of the present invention, an immersion dot coating device is proposed, including a material tray 1, a frame 2, and a printing roller 3. The material tray 1 is used to hold slurry; the frame 2 is located around the material tray 1; the printing roller 3 is rotatably mounted on the frame 2, and the lower end of the printing roller 3 extends into the material tray 1 to coat the slurry in the material tray 1 onto the diaphragm.
[0036] In this embodiment, the coating position of the printing roller 3 is brought into contact with the slurry in the material tray 1. During the rotation of the printing roller 3 driven by the rotary drive mechanism 21, the slurry in the material tray 1 is first transferred to the printing roller 3, and then the printing roller 3 transfers the slurry to the diaphragm, completing the coating operation. The use of an anilox roller to transfer the slurry is eliminated; the printing roller 3 directly contacts the slurry, reducing wear and extending its service life. This invention reduces the need for traditional ink cartridges and intermediate anilox rollers that transfer the slurry, thus reducing the frequency of printing roller 3 replacements and saving production costs. The liquid level in the material tray 1 can be changed vertically. By simply changing the liquid level in the material tray 1, the contact depth between the printing roller 3 and the liquid surface can be altered, thereby changing the amount of liquid carried by the printing roller 3 and adjusting the coating effect. The structure is simple, adjustment is convenient and quick, saving time and effort. Eliminating the use of intermediate anilox rollers reduces the occurrence of uneven coating caused by uneven liquid carrying during speed increases, which was previously possible when using intermediate anilox rollers. The rotary drive mechanism 21 includes a motor and a reducer. The output shaft of the motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to one end of the printing roller 3. The rotational speed of the printing roller 3 can be adjusted by using the reducer.
[0037] Furthermore, such as Figure 1 , Figure 2 and Figure 3 As shown, it also includes a receiving tray 4, which is located below the holding tray 1. In actual operation, there may be slurry overflowing or dripping from the holding tray 1. The receiving tray 4 can effectively collect any leaked slurry, keeping the environment around the equipment clean. At the same time, the collected slurry can be recycled, improving the utilization rate of the slurry and reducing production costs.
[0038] Furthermore, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the material tray 1 has an injection port 5 and an overflow port 6, and the receiving tray 4 has a return port 7. The injection port 5 is used to connect to the outlet of the liquid inlet pump, and the inlet of the liquid inlet pump is used to connect to the slurry tank. The return port 7 is used to connect to the slurry tank. The injection port 5 is used to introduce slurry from the slurry tank into the material tray 1. When the slurry in the material tray 1 reaches a certain height, it can flow out from the overflow port 6 to the receiving tray 4. The return port 7 on the receiving tray 4 can send the collected slurry back to the slurry tank, forming a circulating slurry supply and recycling system. This ensures that there is always enough slurry in the material tray 1 for coating operations. At the same time, the design of the overflow port 6 and the return port 7 can prevent excessive slurry in the material tray 1 from overflowing and causing waste, realizing the recycling of slurry and improving the sustainability of production.
[0039] Furthermore, such as Figure 2 , Figure 3 and Figure 4As shown, it also includes an overflow regulating plate 8, which is flexibly mounted on the material tray 1 and located at the overflow port 6. The upper end face of the overflow regulating plate 8 is located below the upper end face of the overflow port 6. By adjusting the vertical position of the overflow regulating plate 8, the height at which the lower end of the overflow port 6 is blocked can be changed, thereby changing the overflow height in the material tray 1. For example, when the overflow regulating plate 8 is raised, the height at which the overflow port 6 is blocked increases, the overflow height increases, and more slurry needs to flow out of the overflow port 6 in the material tray 1; when the overflow regulating plate 8 is lowered, the height at which the overflow port 6 is blocked decreases, and the slurry in the material tray 1 flows out of the overflow port 6 more easily. The slurry level in the material tray 1 can be precisely controlled, thereby changing the contact depth between the printing roller 3 and the slurry, and thus adjusting the amount of slurry carried by the printing roller 3, achieving fine adjustment of the coating effect.
[0040] Furthermore, such as Figure 4 As shown, the overflow regulating plate 8 has a set of regulating holes, all arranged vertically. All regulating holes 9 within the same set are arranged along the length of the overflow regulating plate 8. It also includes a locking bolt 10. One end of the locking bolt 10 passes through the material tray 1 and is threaded into the regulating hole 9. The other end of the locking bolt 10 is located outside the material tray 1. The overflow regulating plate 8 is located inside the material tray 1. To adjust the vertical position of the overflow regulating plate 8, first separate the locking bolt 10 from the overflow regulating plate 8, then change the vertical position of the overflow regulating plate 8. After adjustment, thread the locking bolt 10 back into the regulating hole 9 on the overflow regulating plate 8, thus locking the overflow regulating plate 8 within the material tray 1. By selecting different positions of the regulating holes 9 along the vertical direction to connect with the locking bolt 10, the overflow regulating plate 8 can be fixed at different heights. The structure is simple, the connection is firm and reliable, and disassembly and assembly are convenient and quick, saving time and effort.
[0041] Furthermore, such as Figure 3 and Figure 4 As shown, the length of the overflow regulating plate 8 is greater than the length of the overflow port 6, and there are locking bolts 10 on both sides of the overflow port 6. The longer overflow regulating plate 8 can better cover the overflow port 6, ensuring the uniformity of the overflow. Figure 3 As shown, the locking bolts 10 are located on the left and right sides of the overflow port 6, rather than below the overflow port 6, which can prevent the overflowing slurry from flowing onto the locking bolts 10 and avoid affecting the disassembly and assembly of the locking bolts 10.
[0042] Furthermore, such as Figure 1 and Figure 2As shown, the bottom of the material tray 1 has an upper dovetail groove 11, and also includes a base 12, a support seat 13, a support beam 14, and the frame 2 and the receiving tray 4 are all set on the base 12; the support seat 13 is set on the base 12 and is located outside the receiving tray 4. There are multiple support seats 13 on both sides of the printing roller 3. All the support seats 13 on the same side of the printing roller 3 are arranged along the length direction of the printing roller 3. The upper end face of the support seat 13 has a lower dovetail groove 15; the upper and lower ends of the support beam 14 have dovetail strips 16. The dovetail strips 16 at the upper end of the support beam 14 are inserted into the upper dovetail groove 11, and the dovetail strips 16 at the lower end of the support beam 14 are inserted into the lower dovetail groove 15. Both the upper dovetail groove 11 and the lower dovetail groove 15 are set along the front-to-back direction. The interlocking structure of the upper dovetail groove 11, lower dovetail groove 15, and dovetail strip 16 allows for quick installation and disassembly of the material tray 1, support base 13, and support beam 14. This structure provides good guidance and stability, ensuring that each component maintains its accurate position after installation, facilitating equipment assembly and maintenance, and improving maintainability. Simultaneously, the cooperation of the dovetail groove and dovetail strip can withstand certain lateral forces, further ensuring the stability of the equipment during operation.
[0043] Furthermore, such as Figure 2 As shown, the lower dovetail groove 15 located on one side of the printing roller 3 is a through groove, and the end of the lower dovetail groove 15 located on the other side of the printing roller 3 away from the printing roller 3 is a closed end. It also includes a positioning plate 17 and a limiting bolt 18. The positioning plate 17 is set outside the material tray 1 and is located above the through groove. The lower end of the limiting bolt 18 passes through the positioning plate 17 and is threadedly connected to the support beam 14. The upper end of the limiting bolt 18 is located above the positioning plate 17. At least two positioning plates 17 are provided on both the front and rear sides of the material tray 1 in the left-right direction. The lower dovetail groove 15 located on the rear side of the printing roller 3 is a through groove in the front-back direction. The front end of the lower dovetail groove 15 located on the front side of the printing roller 3 is a closed end and the rear end is an open end. During installation, the support beam 14 is inserted between the material tray 1 and the support base 13 from back to front, and the dovetail strip 16 at the upper end of the support beam 14 is inserted into the upper dovetail groove 11 at the bottom of the material tray 1. The dovetail strip 16 at the lower end of the support beam 14 is inserted into the lower dovetail groove 15 on the upper surface of the support base 13. When the front end of the dovetail strip 16 contacts the front end of the lower dovetail groove 15 located in front of the material tray 1, the dovetail strip 16 cannot move forward, indicating that the insertion is in place. Then, the positioning plates 17 and the support beam 14 are locked together with the limiting bolts 18, thereby locking the support beam 14 and the material tray 1 together. The structure is simple, the connection is firm and reliable, and the disassembly and assembly are convenient and quick, saving time and effort. In order to prevent the support beam 14 from shifting from the material tray 1 in the front-back direction, a positioning bolt can be threaded onto the support seat 13 on the rear side of the material tray 1 to clamp the support beam 14 between the positioning bolt and the support seat 13 on the front side of the material tray 1.
[0044] Furthermore, such as Figure 1 As shown, the distance from the lower end face of the material tray 1 to the upper end face of the support base 13 is d1, and the distance from the lowest point of the printing roller 3 to the upper end face of the material tray 1 is d2, where d1 ≥ d2. This ensures that when disassembling the material tray 1, it has sufficient downward space to ensure that the material tray 1 can be separated from the printing roller 3 and moved horizontally out from between the receiving tray 4 and the printing roller 1.
[0045] Furthermore, such as Figure 1 As shown, both ends of the frame 2 have insertion holes 19, and also include a support plate 20. The support plate 20 is inserted into the insertion holes 19 and overlaps with the receiving tray 4. The upper end surface of the support plate 20 is used to contact or separate from the bottom surface of the receiving tray 1. Both ends of the frame 2 have insertion holes 19, and each insertion hole 19 is fitted with a support plate 20. When the material tray 1 needs to be installed, first place the material tray 1 between the receiving tray 4 and the printing roller 1 and lift the material tray 1. Then move the support plate 20 on the left to the right and the support plate 20 on the right to the left. The support plates 20 on both sides support the material tray 1. Then insert the support beam 14 from back to front between the material tray 1 and the support base 13. The dovetail strip 16 at the upper end of the support beam 14 is inserted into the upper dovetail groove 11 at the bottom of the material tray 1, and the dovetail strip 16 at the lower end of the support beam 14 is inserted into the lower dovetail groove 15 on the upper surface of the support base 13. After the insertion is in place, use the limiting bolt 18 to lock the positioning plate 17 and the support beam 14 together, thereby locking the support beam 14 and the material tray 1 together. When disassembling the material tray 1, first separate the limiting bolt 18 from the supporting beam 14, then separate the supporting beam 14 from the material tray 1 and the supporting base 13. Next, move the left-side bearing plate 20 to the left and the right-side bearing plate 20 to the right, so that both bearing plates 20 are separated from the material tray 1. Then, the material tray 1 can be moved down and then moved horizontally out between the receiving tray 4 and the printing roller 1. The structure is simple, and disassembly and assembly are convenient and quick, saving time and effort.
[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. An immersion-type dot coating device, characterized in that: include, A material holding tray (1) is used to hold slurry; The frame (2) is located around the material tray (1); The printing roller (3) is rotatably mounted on the frame (2). The lower end of the printing roller (3) extends into the material tray (1) to coat the slurry in the material tray (1) onto the diaphragm.
2. The immersion coating equipment according to claim 1, characterized in that: It also includes a receiving tray (4), which is located below the holding tray (1).
3. The immersion coating equipment according to claim 2, characterized in that: The material tray (1) has an injection port (5) and an overflow port (6), and the receiving tray (4) has a return port (7). The injection port (5) is used to connect with the outlet of the liquid inlet pump, the inlet of the liquid inlet pump is used to connect with the slurry tank, and the return port (7) is used to connect with the slurry tank.
4. The immersion coating equipment according to claim 3, characterized in that: It also includes an overflow regulating plate (8), which is raised and lowered on the material tray (1) and located at the overflow port (6). The upper end face of the overflow regulating plate (8) is located below the upper end face of the overflow port (6).
5. The immersion coating equipment according to claim 4, characterized in that: The overflow regulating plate (8) has a set of regulating holes. All the regulating holes are arranged in the vertical direction. All the regulating holes (9) in the same regulating hole set are arranged along the length of the overflow regulating plate (8). It also includes a locking bolt (10). One end of the locking bolt (10) passes through the material tray (1) and is threaded to the regulating hole (9). The other end of the locking bolt (10) is located outside the material tray (1).
6. The immersion coating equipment according to claim 5, characterized in that: The length of the overflow regulating plate (8) is greater than the length of the overflow port (6), and there are locking bolts (10) on both sides of the overflow port (6).
7. The immersion coating equipment according to claim 2, characterized in that: The bottom of the material tray (1) has an upper dovetail groove (11), and also includes, The base (12), the frame (2) and the receiving tray (4) are all mounted on the base (12); Support base (13), the support base (13) is disposed on the base (12) and located outside the receiving tray (4). There are multiple support bases (13) on both sides of the printing roller (3). All the support bases (13) located on the same side of the printing roller (3) are arranged along the length direction of the printing roller (3). The upper end face of the support base (13) has a lower dovetail groove (15). A support beam (14) has dovetail strips (16) at both the upper and lower ends. The dovetail strip (16) at the upper end of the support beam (14) is inserted into the upper dovetail groove (11), and the dovetail strip (16) at the lower end of the support beam (14) is inserted into the lower dovetail groove (15).
8. The immersion coating equipment according to claim 7, characterized in that: The lower dovetail groove (15) located on one side of the printing roller (3) is a through groove, and the end of the lower dovetail groove (15) located on the other side of the printing roller (3) away from the printing roller (3) is a closed end, and also includes, Positioning plate (17), the positioning plate (17) is disposed on the outside of the material tray (1) and located above the through groove; The lower end of the limiting bolt (18) passes through the positioning plate (17) and is threadedly connected to the support beam (14). The upper end of the limiting bolt (18) is located above the positioning plate (17).
9. An immersion-type dotting device according to claim 7, characterized in that: The distance from the lower end face of the material tray (1) to the upper end face of the support base (13) is d1, and the distance from the lowest point of the printing roller (3) to the upper end face of the material tray (1) is d2, where d1 ≥ d2.
10. An immersion-type dotting device according to claim 2, characterized in that: The frame (2) has insertion holes (19) at both ends and also includes a support plate (20). The support plate (20) is inserted into the insertion hole (19). The support plate (20) overlaps with the receiving tray (4). The upper surface of the support plate (20) is used to contact or separate from the bottom surface of the holding tray (1).