Printing template
By incorporating a printing buffer made of flexible material into the printing stencil, the pressure from the squeegee is absorbed and dispersed, thus solving the problem of stress concentration in the graphic area, extending the stencil's lifespan, and improving printing accuracy.
Patent Information
- Application Number
- CN202520692972.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-14
AI Technical Summary
During the squeegee printing process, traditional printing stencils are prone to fatigue damage in the graphic area due to stress concentration, resulting in a short stencil life. Furthermore, the pressure can cause deformation of the graphic area, affecting printing accuracy.
A printing buffer made of flexible material is set on the printing template, located outside the graphic area, to absorb and disperse the pressure applied by the squeegee, and to change the pressure transmission path through its own elastic deformation.
It improves the lifespan of the template and ensures printing accuracy, extending the lifespan of the template and enhancing printing precision.
Smart Images
Figure CN223948809U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to battery printing technical field especially relates to a printing template. BACKGROUND
[0002] The traditional printing template can apply pressure to the graphic carrier in the doctor blade printing process, wherein the graphic area of the graphic carrier is prone to fatigue damage due to stress concentration, resulting in short service life of the template (50-60 thousand times of printing), and the graphic area is prone to deformation under the action of pressure, affecting the printing precision.
[0003] Therefore, the above problems need to be solved. INVENTION CONTENTS
[0004] The utility model discloses a printing template to buffer the pressure received by the graphic area, improve the service life of the template, and ensure the printing precision.
[0005] To achieve this purpose, the utility model adopts the following technical scheme:
[0006] A printing template transfers printing material to the printing material by a doctor blade during printing, and the printing template comprises:
[0007] A frame;
[0008] A graphic carrier is tensioned and fixed in the frame, and the middle part of the graphic carrier has a graphic area for printing graphic information;
[0009] A printing buffer part made of flexible material is arranged on the graphic carrier and located outside the graphic area, and at least extends along the moving direction of the doctor blade, so that the printing buffer part can absorb and disperse the printing pressure applied by the doctor blade to the graphic carrier through elastic deformation during printing.
[0010] Preferably, the two ends of the printing buffer part exceed the moving range of the doctor blade.
[0011] Preferably, the two ends of the printing buffer part exceed the moving range of the doctor blade by 5-40mm.
[0012] Preferably, the printing buffer part comprises two buffer parts, and the two buffer parts are arranged on the opposite sides of the graphic area.
[0013] Preferably, the printing buffer part is annular.
[0014] Preferably, the material of the printing buffer part is polyurethane, silica gel, resin adhesive film or soft metal.
[0015] Preferably, the elastic modulus of the printing buffer ranges from 0.1 to 5 MPa.
[0016] Preferably, the printing buffer has a thickness of 1 to 3 mm and a width of 5 to 10 mm.
[0017] Preferably, the printing buffer is integrally formed with the graphic carrier.
[0018] Preferably, the printing buffer is detachably arranged on the graphic carrier.
[0019] The printing template has the advantages that:
[0020] The printing template has the advantages that: BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is a structural schematic view of a conventional printing template;
[0022] Figure 2 is a structural schematic view of a printing template in Embodiment One of the present application;
[0023] Figure 3 is a schematic view of a pressure transmission path when the graphic area is subjected to pressure in Embodiment One of the present application;
[0024] Figure 4 is a sectional view of the printing template in Embodiment One of the present application.
[0025] In the drawings:
[0026] 1, frame; 2, graphic carrier; 21, graphic area; 3, printing buffer; 31, buffer member. DETAILED DESCRIPTION
[0027] The present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, but not all the structures.
[0028] In the description of the utility model, unless another definite provision and limitation, the term "link", "connection", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element's interaction relationship.For the ordinary skill in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.
[0029] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional feature between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.
[0030] In the description of the embodiment, the terms "on", "under", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification operation, and not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.
[0031] Please refer to Figure 1 , the traditional stencil includes frame 1 and graphic carrier 2, the graphic carrier 2 is tensioned and fixed in the frame 1, the middle part of the graphic carrier 2 has a graphic area 21 for printing graphic information, when printing using the printing stencil, the printing stencil is arranged on the printing material, the printing material is transferred to the printing material through the graphic area 21 on the printing stencil, then the pressure is applied to the printing stencil by the doctor blade and moves along the printing direction, to ensure that the printing material can be fully transferred to the printing material through the graphic area 21, to form clear graphics.But the traditional stencil cannot effectively disperse the pressure brought by the doctor blade due to its rigid characteristics, so that the graphic area 21 bears most of the stress, and the fine structure of the graphic area 21 is prone to deformation under the action of stress after long time work, which directly affects the printing precision and quality.Therefore, a printing stencil is proposed in the following embodiment, which aims to absorb and disperse the pressure of the doctor blade, to relieve the stress of the graphic area 21, thereby improving the service life of the stencil and ensuring the printing precision.
[0032] Embodiment 1
[0033] Please refer to Figures 2 to 4 , the printing template further comprises a printing buffer 3, the graphic carrier 2 is tightly fixed in the frame 1, the middle part of the graphic carrier 2 has a graphic area 21 for printing graphic information, the printing buffer 3 is arranged on the graphic carrier 2 and located outside the graphic area 21, and extends at least along the moving direction of the squeegee, so that the printing buffer 3 can absorb and disperse the printing pressure applied by the squeegee to the graphic carrier 2 through its elastic deformation during the printing process.
[0034] It can be understood that the printing buffer 3 made of flexible material can change the propagation path of the pressure in the traditional template, and the printing buffer 3 in the printing template can deform during the movement of the squeegee, so that the stress originally concentrated on the graphic area 21 is redistributed to the peripheral area of the graphic area 21, so as to relieve the stress of the graphic area 21, thereby improving the service life of the template and ensuring the printing accuracy.
[0035] Further, the two ends of the printing buffer 3 exceed the moving range of the squeegee, it can be understood that during the printing process, the squeegee can move from one side of the graphic area 21 to the other side along the printing direction, and during this process, the squeegee is always in the area where the printing buffer 3 is located, so as to ensure the continuity of the printing buffer 3 when dispersing the pressure, so as to avoid stress mutation when the squeegee moves to the edge of the printing buffer 3, thereby ensuring the accuracy and quality of printing. Wherein, as shown in Figure 2 , any end of the printing buffer 3 exceeds the moving range d of the squeegee.
[0036] Preferably, the two ends of the printing buffer 3 respectively exceed the moving range of the squeegee by 5-40mm. If the exceeding distance is too small, when the squeegee is in the extreme position, the edge thereof directly acts between the junction of the printing buffer 3 and the rigid area of the template, thereby easily causing stress mutation, if the exceeding range is too large, more flexible material is needed, which increases the production cost, and the flexible area exceeding the moving range of the squeegee may be deformed due to material relaxation or gravity when it is not directly compressed by the squeegee, which may cause the overall flatness of the template to decrease after long-term use, thereby indirectly affecting the printing accuracy.
[0037] In this embodiment, the printing buffer 3 comprises two buffer pieces 31 arranged on opposite sides of the graphic area 21. It can be understood that during the entire movement of the squeegee, the two buffer pieces 31 can continuously absorb and disperse the pressure on the graphic area 21, thereby further ensuring that the graphic area 21 is deformed during the printing process, thereby ensuring the service life of the template, and further ensuring the accuracy and quality of printing.
[0038] Exemplarily, the two buffer members 31 are both long strips, the length direction of the buffer member 31 is consistent with the moving direction of the squeegee, wherein the squeegee has a stroke starting point and a stroke ending point during the moving process, one end of the buffer member 31 is on one side of the stroke starting point and passes the stroke starting point in a direction away from the stroke ending point, and the other end is on one side of the stroke ending point and passes the stroke ending point in a direction away from the stroke starting point.
[0039] In the embodiment, the printing material is a chemical substance such as ink and cleaning agent with corrosive effect, and the printing buffer part 3 also needs to be able to withstand the corrosion of the chemical substance such as ink and cleaning agent contacted in the printing process. Therefore, when selecting the printing buffer part 3, a material resistant to corrosion needs to be selected, and polyurethane, silica gel, resin adhesive film or soft metal is preferred. According to different working conditions, the printing buffer part 3 can be made of flexible materials of different materials, which will not be described here.
[0040] In addition, the elastic modulus can be regarded as an index for measuring the difficulty of elastic deformation of the material, and the lower the value, the smaller the stress that causes a certain elastic deformation of the material, that is, the smaller the stiffness of the material. Therefore, the printing buffer part 3 made of a material with a low elastic modulus has high deformation capacity and can absorb the impact energy of the squeegee pressure to reduce the pressure transmitted to the graphic area 21. In the embodiment, the elastic modulus of the printing buffer part 3 ranges from 0.1 to 5 MPa. That is, the printing buffer part 3 is made of a material with an elastic modulus ranging from 0.1 to 5 MPa, and preferably 1.2 MPa.
[0041] Further, the ability of the printing buffer part 3 to absorb the impact energy of the squeegee pressure is related to the cross-sectional area (i.e., the product of the thickness and the width) of the printing buffer part 3, wherein the width of the printing buffer part 3 can expand the pressure acting area to reduce the local pressure, and the thickness of the printing buffer part 3 can dissipate energy through compression deformation to reduce the residual stress transmitted to the stencil. In the embodiment, the thickness of the printing buffer part 3 is preferably 1-3 mm, and the width is preferably 5-10 mm.
[0042] Exemplarily, the printing buffer part 3 is made of polyurethane material with an elastic modulus of 1.2 MPa, the thickness is 2 mm, and the width is 5 mm. Comparative experiments are conducted on the printing stencil with the printing buffer part 3 and the traditional stencil, the average service life of the traditional stencil is 60,000 times, and after 60,000 times, the grid line accuracy error of the traditional stencil is ±5 μm. In the embodiment, the average service life of the printing stencil with the printing buffer part 3 is 155,000 times, and after 155,000 times, the grid line accuracy error is ±1.5 μm. It can be seen that the service life of the stencil with the printing buffer part 3 is significantly improved, and the printing accuracy is improved by 67%.
[0043] Embodiment 2
[0044] The difference between the embodiment and embodiment 1 is that, please refer toFigure 2 The printing buffer part 3 is annular. It can be understood that the annular printing buffer part 3 can form a buffer zone surrounding the graphic area 21, so that the local stress concentration caused by the difference in printing direction can be avoided under the action of the printing buffer part 3 when the squeegee moves in any direction, and the applicability of the printing template can be improved.
[0045] Exemplarily, the printing buffer part 3 includes four long strip-shaped buffer pieces 31, which can form a closed or open quadrilateral, wherein two buffer pieces 31 oppositely arranged in the printing direction of the squeegee are respectively located outside the moving range of the squeegee.
[0046] Embodiment 3
[0047] In this embodiment, the printing buffer part 3 is integrally formed with the graphic carrier 2. In this way, the integrity and stability between the printing buffer part 3 and the graphic carrier 2 can be ensured, so that the service life of the printing template can be further improved.
[0048] Exemplarily, mounting holes are formed on the graphic carrier 2, and the printing buffer part 3 integrally formed with the graphic carrier 2 can be formed in the mounting holes by injection molding, electroplating or electroforming.
[0049] In some other possible embodiments, the shape of the printing buffer part 3 can be processed in other processes to obtain a printing buffer part 3 with a preset shape, and then a mounting hole shaped like the printing buffer part 3 is processed on the graphic carrier 2, and the printing buffer part 3 is integrally mounted in the mounting hole by welding.
[0050] Embodiment 4
[0051] The difference between this embodiment and embodiment 3 is that the printing buffer part 3 is detachably arranged on the graphic carrier 2. In this way, the printing buffer part 3 can be replaced and maintained to further improve the service life of the printing template.
[0052] Exemplarily, a printing buffer part 3 with a preset shape is obtained, and then a mounting groove shaped like the printing buffer part 3 is processed on the graphic carrier 2, and the groove opening of the mounting groove faces the printing material, a neodymium iron boron or other permanent magnet is arranged on the groove bottom of the mounting groove, and a soft iron sheet or other magnetic material is arranged on the back of the printing buffer part 3. The back of the printing buffer part 3 is in contact with the groove bottom of the mounting groove, and the installation of the printing buffer part 3 can be completed under the magnetic attraction between the magnetic material and the permanent magnet, so as to facilitate the replacement and maintenance of the printing buffer part 3.
[0053] In some other possible embodiments, the printing buffer part 3 can be fixed in the mounting groove by screws, buckles or other fixing members, which will not be described herein.
[0054] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.
Claims
1. A printing stencil which transfers printing material to a printing substrate by a squeegee during printing, the printing stencil comprising: a frame (1); a graphic carrier (2) which is fixedly stretched in the frame (1), the graphic carrier (2) having a graphic area (21) for printing graphic information in the middle part thereof; characterized in that the printing stencil further comprises: a printing buffer (3) made of flexible material, the printing buffer (3) being arranged on the graphic carrier (2) and outside the graphic area (21) and extending at least in the moving direction of the squeegee, so that the printing buffer (3) can absorb and disperse outwardly the printing pressure applied by the squeegee to the graphic carrier (2) during printing by elastic deformation of itself.
2. The printing stencil according to claim 1, characterized in that The printing buffer (3) extends beyond the moving range of the squeegee at both ends thereof.
3. The printing stencil of claim 2, wherein, The printing buffer (3) extends beyond the moving range of the squeegee by 5-40 mm at both ends thereof.
4. The printing stencil of claim 1, wherein, The printing buffer (3) comprises two buffer pieces (31) arranged on opposite sides of the graphic area (21).
5. The printing stencil of claim 1, wherein, The printing buffer (3) is annular.
6. The printing stencil of claim 1, wherein, The printing buffer (3) is made of polyurethane, silica gel, resin adhesive film or soft metal.
7. The printing stencil of claim 1, wherein, The printing buffer (3) has an elastic modulus in the range of 0.1-5 MPa.
8. The printing stencil of claim 1, wherein, The printing buffer (3) has a thickness of 1-3 mm and a width of 5-10 mm.
9. The printing stencil according to any one of claims 1 to 8, characterized in that The printing buffer (3) is integrally formed with the graphic carrier (2).
10. The printing stencil according to any one of claims 1 to 8, wherein The printing buffer (3) is detachably arranged on the graphic carrier (2).