Ink reclaiming knife suitable for battery silk-screen printing
By designing the ink retrieval knife with a beveled surface structure and the U-shaped handle, the problem of uneven slurry retrieval in battery screen printing is solved, and a more uniform slurry distribution and higher quality printing effect is achieved.
Patent Information
- Application Number
- CN202422450354.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-11
AI Technical Summary
During the battery screen printing process of existing ink retrieval knives, the slurry retrieval is uneven, resulting in printing grid breakage and slurry failure, which cannot meet the requirements of high-quality printing.
A backing knife with a bottom structure of a bevel is designed, with a U-shaped handle added on the sides, and the bevel angle is between 30° and 60°. The bevel design is adopted to better than the vertical design, ensuring that the slurry is evenly stacked in the bevel, and combined with a composite reinforced structure to improve stability and durability.
The slurry return is achieved more uniformly, avoids printing slurry shortage, is more convenient to operate, reduces slurry waste, and improves printing quality.
Smart Images
Figure CN223187206U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery screen printing, in particular to an ink return knife suitable for battery screen printing. Background Art
[0002] The ink return knife is a supporting device for screen printing of batteries. With the continuous development of the photovoltaic field, the production process of photovoltaic cells is constantly being optimized. In the production process of photovoltaic cells, the solar cells need to be screen printed. However, after the solar cells are screen printed, excess slurry will accumulate on both sides during the flat push of the ink return knife, resulting in uneven ink return. Currently, in order to spread the slurry evenly, the ink return knife is usually installed on the screen printing machine to spread the slurry accumulated after the screen scraper is printed, facilitating screen printing. With the continuous development of technology, people have higher and higher requirements for the manufacturing process of the ink return knife.
[0003] The existing ink return knife process has certain drawbacks. In the traditional screen printing process, the main function of the ink return knife is to push the accumulated slurry after printing evenly back onto the screen to ensure that the slurry is evenly distributed on the screen, which is the prerequisite for achieving high-quality printing. Through the action of the ink return knife, the slurry can be more evenly covered on the screen pattern, providing a good foundation for subsequent printing steps. The current ink return knife adopts a vertical end face structure. The slurry accumulates on both sides of the ink return knife. The ink return process is unevenly spread, and the slurry leaks during the push, resulting in broken grid problems in printing. It is urgent to solve the problems of uneven ink return and slurry shortage. To this end, we propose an ink return knife suitable for battery screen printing. Utility Model Content
[0004] Technical problems solved: In response to the shortcomings of the existing technology, the utility model provides an ink return knife suitable for battery screen printing. The bottom structure of the ink return knife is a beveled ink return knife. A handle is added to the side of the ink return knife for easy installation. The bevel angle between 30° and 60° makes it more uniform when pushed horizontally. The bevel design is better than the vertical design. The slurry accumulated on the surfaces of both sides is all accumulated in the bevel, and the slurry returns ink more evenly, which can effectively solve the problems in the background technology.
[0005] Technical solution: In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an ink return knife suitable for battery screen printing, comprising an ink return knife body, the bottom of the ink return knife body is integrally formed with a bevel knife seat, the upper end of the ink return knife body near the middle of both ends are integrally formed with U-shaped handles, the U-shaped handle is provided with an installation slot, the bottom of the bevel knife seat is integrally positioned with a blade, and the two ends of the bevel knife seat near the lower end are integrally formed with baffles.
[0006] Preferably, the surface of the ink return knife body is integrally formed with a composite reinforcement structure, and the composite reinforcement structure includes a metal-based composite sheet, a reinforcing fiber sheet, silicon carbide, anti-rust paint and a steel sheet, the anti-rust paint is located on the lower end surface of the steel sheet, the silicon carbide is located on the upper end surface of the steel sheet, the reinforcing fiber sheet is located on the surface of the silicon carbide, and the metal-based composite sheet is located on the surface of the reinforcing fiber sheet.
[0007] Preferably, the top of the ink return knife body is installed on the printing mechanism through a U-shaped handle and a mounting slot, and the printing mechanism platform drives the ink return knife body, the bevel knife seat and the blade to move.
[0008] Preferably, after the ink return blade body is adjusted through the XY of the printing platform, it follows the main Z axis from the Z axis to reach the printing height, and the translation axis moves forward to press the scraper downward to print the slurry onto the silicon wafer through the screen. After printing is completed, the double Z axes rise and the blade performs the ink return action.
[0009] Preferably, the bevel tool holder is integrally formed by bending, and the bevel angle of the bevel tool holder is 30-60 degrees.
[0010] Preferably, the metal matrix composite sheet, the reinforcing fiber sheet, the silicon carbide, the anti-rust paint and the steel sheet are integrally formed by die-casting.
[0011] Beneficial effects: Compared with the prior art, the utility model provides an ink return knife suitable for battery screen printing, which has the following beneficial effects: the ink return knife suitable for battery screen printing has an ink return knife with an inclined bottom structure, and a handle is added to the side of the ink return knife for easy installation. The inclined angle between 30° and 60° makes it more uniform when pushed horizontally. The inclined design is better than the vertical design. The slurry accumulated on the two side surfaces is all accumulated in the inclined surface, and the slurry returns ink more evenly. The bottom of the ink return knife adopts an inclined design, and a handle is designed to be installed on the top. The ink return knife is installed on the printing mechanism. The working principle is that after the motor is in place and the printing platform XY is adjusted, the Z axis follows the main Z axis to reach the printing height, and the translation axis moves forward to press the scraper downward to print the slurry onto the silicon wafer through the screen. After printing is completed, the double Z axes rise. The ink knife returns ink, and the bottom bevel design of the ink knife is adopted. The optimal bevel angle of the ink knife is between 30° and 60°, which makes the ink return more uniform and there is no slurry shortage. The U-shaped handle design on the top of the ink knife makes it more convenient to disassemble and clean the ink knife, avoiding gloves touching the slurry on the side and bottom of the ink knife, and reducing the waste of slurry during the disassembly of the ink knife. The entire ink knife has a simple structure, is easy to operate, and has a better effect than the traditional method. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 The utility model is a schematic diagram of the overall structure of an ink return knife suitable for battery screen printing.
[0013] Figure 2 This is a structural schematic diagram of the main view of an ink return knife suitable for battery screen printing in the utility model.
[0014] Figure 3 This is a structural schematic diagram of a top view of an ink return knife suitable for battery screen printing in the utility model.
[0015] Figure 4 This is a structural schematic diagram of a side view of an ink return knife suitable for battery screen printing in the utility model.
[0016] Figure 5 The utility model is a structural schematic diagram of a composite reinforcement structure in an ink return knife suitable for battery screen printing.
[0017] In the figure: 1. Ink return knife body; 2. U-shaped handle; 3. Mounting slot; 4. Baffle; 5. Bevel knife seat; 6. Blade; 7. Composite reinforcement structure; 8. Metal-based composite sheet; 9. Reinforced fiber sheet; 10. Silicon carbide; 11. Anti-rust paint; 12. Steel sheet. DETAILED DESCRIPTION
[0018] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments, but those skilled in the art will understand that the embodiments described below are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to illustrate the present invention, and should not be regarded as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention. If specific conditions are not specified in the embodiments, they are carried out according to conventional conditions or the conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.
[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0021] like Figure 1-5 As shown, a return ink knife suitable for battery screen printing comprises an ink return knife body 1, the bottom of the ink return knife body 1 is integrally formed with a bevel knife seat 5, the upper end of the ink return knife body 1 near the middle of both ends are integrally formed with U-shaped handles 2, the U-shaped handle 2 is provided with a mounting slot 3, the bottom of the bevel knife seat 5 is integrally positioned with a blade 6, the two ends of the bevel knife seat 5 near the lower end are integrally formed with baffles 4, the bottom structure is an ink return knife with a bevel design, a handle is added to the side of the ink return knife for easy installation, the bevel angle between 30° and 60° is more uniform when pushed flatly, the bevel design is better than the vertical design, the slurry accumulated on the surfaces of both sides is all accumulated in the bevel, and the slurry returns ink more evenly.
[0022] Furthermore, a composite reinforcement structure 7 is integrally formed on the surface of the ink return knife body 1. The composite reinforcement structure 7 includes a metal-based composite sheet 8, a reinforcing fiber sheet 9, silicon carbide 10, an anti-rust paint 11 and a steel sheet 12. The anti-rust paint 11 is located on the lower end surface of the steel sheet 12, the silicon carbide 10 is located on the upper end surface of the steel sheet 12, the reinforcing fiber sheet 9 is located on the surface of the silicon carbide 10, and the metal-based composite sheet 8 is located on the surface of the reinforcing fiber sheet 9.
[0023] Furthermore, the top of the ink return knife body 1 is installed on the printing mechanism through the U-shaped handle 2 and the installation slot 3, and the printing mechanism platform drives the ink return knife body 1, the bevel knife seat 5, and the blade 6 to move.
[0024] Furthermore, after the ink return blade body 1 is adjusted through the XY of the printing platform, it follows the main Z axis from the Z axis to reach the printing height, and the translation axis moves forward to press down the scraper to print the slurry onto the silicon wafer through the screen. After printing is completed, the double Z axes rise and the blade 6 performs the ink return action.
[0025] Furthermore, the bevel tool holder 5 is integrally formed by bending, and the bevel angle of the bevel tool holder 5 is 30-60 degrees.
[0026] Furthermore, the metal matrix composite sheet 8, the reinforcing fiber sheet 9, the silicon carbide 10, the anti-rust paint 11 and the steel sheet 12 are integrally formed by die-casting.
[0027] A further improved technical solution is an ink return knife with an inclined surface structure at the bottom, including V-shaped, inclined surface, U-shaped, trapezoidal and other structures.
[0028] Working principle: The utility model includes an ink return knife body 1, a U-shaped handle 2, an installation notch 3, a baffle 4, a bevel knife seat 5, a blade 6, a composite reinforcement structure 7, a metal-based composite sheet 8, a reinforcing fiber sheet 9, silicon carbide 10, an anti-rust paint 11, and a steel sheet 12. The bottom of the ink return knife adopts a bevel design, and the top is designed to install a handle. The ink return knife is installed on the printing mechanism. The working principle is that after the motor is in place and the printing platform XY is adjusted, the Z axis follows the main Z axis to reach the printing height, and the translation axis moves forward to press the scraper down, and the slurry is printed on the silicon wafer through the screen. After the printing is completed, the double Z axes rise. The ink knife returns ink, and the bottom bevel design of the ink knife is adopted. The optimal bevel angle of the ink knife is between 30° and 60°, and the ink return is more uniform without slurry shortage. The U-shaped handle design on the top of the ink knife makes it more convenient to disassemble and clean the ink knife, avoiding gloves touching the side and bottom slurry of the ink knife, and reducing the waste of slurry during the disassembly of the ink knife. The bottom structure of the ink knife is designed with a bevel. A handle is added to the side of the ink knife for easy installation. The bevel angle between 30° and 60° is more uniform when pushed flatly. The bevel design is better than the vertical design. The slurry accumulated on the surfaces on both sides is all accumulated in the bevel, and the slurry returns ink more uniformly.
[0029] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used solely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, the terms "include," "comprise," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "includes a..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.
[0030] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.
Claims
1. An ink return knife suitable for battery screen printing, comprising an ink return knife body (1), characterized in that: The bottom of the ink return knife body (1) is integrally formed with a bevel knife seat (5), the upper end of the ink return knife body (1) near the middle of both ends are integrally formed with U-shaped handles (2), the U-shaped handle (2) is provided with a mounting slot (3), the bottom of the bevel knife seat (5) is integrally positioned with a blade (6), and the two ends of the bevel knife seat (5) near the lower end are integrally formed with baffles (4).
2. The ink return knife suitable for battery screen printing according to claim 1, characterized in that: The surface of the ink return knife body (1) is integrally formed with a composite reinforcement structure (7), and the composite reinforcement structure (7) includes a metal-based composite sheet (8), a reinforcing fiber sheet (9), silicon carbide (10), an anti-rust paint (11) and a steel sheet (12), wherein the anti-rust paint (11) is located on the lower end surface of the steel sheet (12), the silicon carbide (10) is located on the upper end surface of the steel sheet (12), the reinforcing fiber sheet (9) is located on the surface of the silicon carbide (10), and the metal-based composite sheet (8) is located on the surface of the reinforcing fiber sheet (9).
3. The ink return blade suitable for battery screen printing according to claim 1, characterized in that: The top of the ink return knife body (1) is mounted on the printing mechanism via a U-shaped handle (2) and a mounting slot (3), and the printing mechanism platform drives the ink return knife body (1), the bevel knife seat (5), and the blade (6) to move.
4. The ink return blade suitable for battery screen printing according to claim 1, characterized in that: After the ink return blade body (1) is adjusted through the XY of the printing platform, it follows the main Z axis from the Z axis to reach the printing height, and the translation axis moves forward to press the scraper downward, printing the slurry onto the silicon wafer through the screen. After the printing is completed, the double Z axes rise, and the blade (6) performs the ink return action.
5. The ink return knife suitable for battery screen printing according to claim 1, characterized in that: The bevel tool holder (5) is integrally formed by bending, and the bevel angle of the bevel tool holder (5) is 30-60 degrees.
6. The ink return knife suitable for battery screen printing according to claim 2, characterized in that: The metal-based composite sheet (8), the reinforcing fiber sheet (9), the silicon carbide (10), the anti-rust paint (11) and the steel sheet (12) are integrally formed by die-casting.