Screen printing plate

Abstract

The utility model provides a screen printing plate which comprises a roller plate, a plurality of ink cells are formed in the roller plate at intervals, and the ink cells are combined to form a first pattern part of a rectangular structure. The roller plate is further provided with a trailing groove, the trailing groove is formed in the tail end of the roller plate, the length of the trailing groove extends in the width direction of the first pattern part, and the length of the trailing groove is equal to the width of the first pattern part. The plurality of ink cells are formed in the roller plate at intervals, and the first pattern part formed by combining the plurality of ink cells can be printed on the printing stock to form the printing pattern. The trailing groove is formed in the position, close to the tail end of the first pattern part, of the roller plate, and when the scraper scrapes slurry to the tail end of the first pattern part, residual slurry is scraped into the trailing groove, so that the residual amount of the slurry at the tail end of the first pattern part can be reduced, the trailing defect at the tail end of a printing stock is avoided, and the printing quality of the printing stock is improved. And therefore, the printing quality can be improved.

Description

Technical Field

[0001] This application belongs to the field of printing technology, and more specifically, relates to a printing screen. Background Technology

[0002] In roller printing, the paste roller rotates clockwise to transfer paste into the cells of the printing screen. The printing screen rotates counterclockwise, lifting the paste and adhering it to its surface. A doctor blade scrapes away excess paste from the printing screen, leaving only the paste in the cells. The creasing roller presses down on the substrate, bringing it into contact with the printing screen, thus printing the paste from the cells onto the substrate.

[0003] However, the ink still leaves traces on the printing plate after being scraped by the squeegee, resulting in an unclear trailing effect at the end of the substrate, thus affecting the printing quality. Utility Model Content

[0004] The purpose of this application is to provide a printing screen to solve the problem in the related art where the paste still leaves traces on the printing plate after being scraped by the squeegee, resulting in an unclear trailing phenomenon at the end of the substrate, thereby affecting the printing quality.

[0005] To achieve the above objectives, the technical solution adopted in the embodiments of this application is as follows:

[0006] A printing screen is provided, including a roller, on which a plurality of cells are spaced apart, and the plurality of cells are combined to form a first pattern portion with a rectangular structure; the roller is also provided with a trailing groove, which is located at the tail end of the roller, and the length of the trailing groove extends along the width direction of the first pattern portion, and the length of the trailing groove is equal to the width of the first pattern portion.

[0007] In one embodiment, the plurality of mesh holes include two sets of first mesh holes arranged along the length direction of the first pattern portion, two sets of second mesh holes and several third mesh holes arranged along the width direction of the first pattern portion, the two sets of first mesh holes and the two sets of second mesh holes enclosing a rectangular structure, and the several third mesh holes being disposed in the area enclosed by the two sets of first mesh holes and the two sets of second mesh holes.

[0008] In one embodiment, in each group of a plurality of first mesh openings: the two ends of each first mesh opening located in the middle position are respectively provided with rounded corners protruding outwards; the first mesh opening located at the front end is provided with the rounded corner at the end near the first mesh opening adjacent to it; and the first mesh opening located at the rear end is provided with the rounded corner at the end near the first mesh opening adjacent to it.

[0009] In one embodiment, each of the rounded corners has a semi-circular structure.

[0010] In one embodiment, the included angle formed by the lines connecting the outward convex directions of two adjacent rounded corners is 90 degrees.

[0011] In one embodiment, the area enclosed by the first mesh is greater than half the area enclosed by the third mesh, and the area enclosed by the first mesh is less than the area enclosed by the third mesh.

[0012] In one embodiment, the area enclosed by the second mesh is less than or equal to half the area enclosed by the third mesh.

[0013] In one embodiment, the area enclosed by the first mesh is larger than the area enclosed by the second mesh.

[0014] In one embodiment, the roller plate is further provided with a plurality of first printing holes, which are combined to form a second pattern portion with a rectangular structure. The second pattern portion is located between the first pattern portion and the trailing groove. The plurality of first printing holes are arranged along the width direction of the first pattern portion, and the length of the second pattern portion is less than or equal to the width of the first pattern portion.

[0015] In one embodiment, the roller plate is further provided with a plurality of second printing holes, which are combined to form a third pattern portion with a rectangular structure. The third pattern portion is located at the end of the first pattern portion away from the trailing groove. The plurality of second printing holes are arranged along the width direction of the first pattern portion, and the length of the third pattern portion is less than or equal to the width of the first pattern portion.

[0016] The printing screen provided in this application has at least the following beneficial effects: By providing multiple cells spaced apart on the roller, a first pattern portion formed by the combination of these cells can be printed onto the substrate. By providing a trailing groove near the tail end of the roller near the tail end of the first pattern portion, when the squeegee scrapes the paste to the tail end of the first pattern portion, any remaining paste is scraped into the trailing groove, thereby reducing the amount of paste remaining at the tail end of the first pattern portion, avoiding trailing defects at the tail end of the substrate, and thus helping to improve printing quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a printing screen provided in an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the distribution of two adjacent first mesh openings provided in an embodiment of this application.

[0020] The main markings in the attached figures are as follows:

[0021] 1. Roller plate;

[0022] 2. Hole; 21. First mesh opening; 211. Rounded corner; 22. Second mesh opening; 23. Third mesh opening;

[0023] 3. Trailing groove;

[0024] 4. First printing hole;

[0025] 5. Second printing hole. Detailed Implementation

[0026] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0027] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0028] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise expressly specified. "Several" means one or more, unless otherwise expressly specified.

[0029] In the description of this application, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] Throughout this specification, reference to "an embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this application. Therefore, the phrase "in one embodiment" or "in some embodiments" appears in various places throughout the specification, and not all references are to the same embodiment. Furthermore, in one or more embodiments, particular features, structures, or characteristics may be combined in any suitable manner.

[0032] Please see Figure 1 The printing screen provided in this application embodiment will now be described. The printing screen includes a roller 1, which can be a flexible plate and can be mounted on a roller shaft to achieve rolling printing operations. Multiple cells 2 are spaced apart on the roller 1, and the multiple cells 2 are combined to form a first pattern portion with a rectangular structure. A trailing groove 3 is also provided on the roller 1, located at the tail end of the roller 1. The length of the trailing groove 3 extends along the width direction of the first pattern portion, and the length of the trailing groove 3 is equal to the width of the first pattern portion. The length direction of the first pattern portion can be... Figure 1 In the Y-axis direction, the width direction of the first pattern portion can be... Figure 1The X-axis direction is specified. The length of the trailing groove 3 extends along the X-axis direction. In this structure, multiple cells 2 are spaced apart on the roller 1, and the first pattern portion formed by the combination of multiple cells 2 can be printed on the substrate to form a printed pattern. By providing a trailing groove 3 near the tail end of the first pattern portion on the roller 1, when the squeegee scrapes the paste to the tail end of the first pattern portion, the remaining paste is scraped into the trailing groove 3, thereby reducing the amount of paste residue at the tail end of the first pattern portion, avoiding trailing defects at the tail end of the substrate, and thus helping to improve printing quality.

[0033] In one embodiment, see Figure 1 As a specific embodiment of the printing screen provided in this application, the plurality of mesh holes 2 include two sets of several first mesh holes 21, two sets of several second mesh holes 22, and several third mesh holes 23. The two sets of several first mesh holes 21 and the two sets of several second mesh holes 22 are arranged to form a rectangular structure. Each set of several first mesh holes 21 is along the length direction of the first pattern portion ( Figure 1 The second mesh 22 is arranged along the width direction of the first pattern portion (in the Y-axis direction), and each group of several second mesh holes 22 is arranged along the width direction of the first pattern portion (in the Y-axis direction). Figure 1 The holes are arranged along the X-axis. Several third mesh openings 23 are located within the area enclosed by two groups of first mesh openings 21 and two groups of second mesh openings 22. This structure, by setting multiple mesh openings 2 as several first mesh openings 21, several second mesh openings 22, and several third mesh openings 23, allows the first mesh openings 21 and several second mesh openings 22 to enclose the overall shape of the first pattern portion, reducing burrs in the first pattern portion. The several third mesh openings 23, as the main body of the first pattern portion, ensure the printing integrity of the first pattern portion.

[0034] In one embodiment, see Figure 2 As a specific embodiment of the printing screen provided in this application, in each group of a plurality of first mesh holes 21: the two ends of each first mesh hole 21 located in the middle position are respectively provided with rounded corners 211 protruding outwards; the end of the first mesh hole 21 located at the front end near the first mesh hole 21 located next to it is provided with rounded corners 211; the end of the first mesh hole 21 located at the tail end near the first mesh hole 21 located next to it is provided with rounded corners 211. Specifically, the lower end of the first mesh hole 21 located at the top is provided with rounded corners 211 protruding outwards; the upper end of the first mesh hole 21 located at the bottom is provided with rounded corners 211 protruding outwards. With this structure, the distance between two adjacent first mesh holes 21 can be shortened by the two rounded corners 211, thereby avoiding the formation of wavy patterns between two adjacent first mesh holes 21, and thus improving the printing quality.

[0035] In one embodiment, see Figure 2As a specific embodiment of the printing screen provided in this application, each rounded corner 211 has a semi-circular structure. This structure allows two adjacent rounded corners 211 to minimize the distance between two adjacent first mesh openings 21; and reduces the risk of burr defects in the printed pattern between two adjacent first mesh openings 21.

[0036] In one embodiment, see Figure 2 In one specific embodiment of the printing screen provided in this application, the included angle formed by the lines connecting the outwardly protruding angles of two adjacent rounded corners 211 is 90 degrees. The outwardly protruding angle of each rounded corner 211 refers to the distance between the center of each rounded corner 211 and its protruding vertex. This structure ensures that the distance between two adjacent first mesh openings 21 is relatively small, thereby improving printing quality.

[0037] In one embodiment, see Figure 1 In one specific embodiment of the printing screen provided in this application, the area enclosed by the first mesh 21 is greater than half the area enclosed by the third mesh 23, and the area enclosed by the first mesh 21 is smaller than the area enclosed by the third mesh 23. The third mesh 23 has a hexagonal structure, and the first mesh 21 has a roughly pentagonal structure. With this structure, the first mesh 21 can fill the outer area of ​​the first pattern portion along the Y-axis direction, ensuring the integrity of the first pattern portion and the printing quality.

[0038] In one embodiment, see Figure 1 In one specific embodiment of the printing screen provided in this application, the area enclosed by the second mesh 22 is less than or equal to half the area enclosed by the third mesh 23. The second mesh 22 is approximately trapezoidal in shape. The second mesh 22 at the front end is an inverted trapezoid, while the second mesh 22 at the rear end is a regular trapezoid. This structure allows the second mesh 22 to fill the area between the first mesh 21 and the third mesh 23, ensuring the integrity of the first pattern portion and the printing quality.

[0039] In one embodiment, see Figure 1 In one specific embodiment of the printing screen provided in this application, the area enclosed by the first mesh 21 is larger than the area enclosed by the second mesh 22. In this structure, a plurality of first meshes 21 are arranged along the length direction of the first pattern portion, and a plurality of second meshes 22 are arranged along the width direction of the first pattern portion. The plurality of first meshes 21 can reduce burr defects that are absent along the length direction of the first pattern portion, thereby helping to improve printing quality.

[0040] In one embodiment, see Figure 1As a specific embodiment of the printing screen provided in this application, the roller 1 is further provided with a plurality of first printing holes 4. The plurality of first printing holes 4 are combined to form a second pattern portion with a rectangular structure. The second pattern portion is located between the first pattern portion and the trailing groove 3. The plurality of first printing holes 4 are arranged along the width direction of the first pattern portion. The length of the second pattern portion is less than or equal to the width of the first pattern portion, that is, the length of the second pattern portion is less than or equal to the length of the trailing groove 3. Each first printing hole 4 may be rectangular or square, and there is no limitation on this. This structure, by providing a plurality of first printing holes 4 on the roller 1 to form the second pattern portion, thereby improving the diversity of the printing pattern of the printing screen.

[0041] In one embodiment, see Figure 1 As a specific embodiment of the printing screen provided in this application, the roller 1 is further provided with a plurality of second printing holes 5. The plurality of second printing holes 5 are combined to form a third pattern portion with a rectangular structure. The third pattern portion is located at the end of the first pattern portion away from the trailing groove 3. The plurality of second printing holes 5 are arranged along the width direction of the first pattern portion. The length of the third pattern portion is less than or equal to the width of the first pattern portion, and the length of the third pattern portion is equal to the length of the second pattern portion. Each second printing hole 5 may be rectangular or square, and there is no specific limitation. This structure, by providing a plurality of second printing holes 5 on the roller 1 to form the third pattern portion, thereby improving the diversity of the printed patterns on the printing screen.

[0042] In one embodiment, see Figure 1 The first pattern portion is symmetrically arranged along its central axis in the X-axis direction and also symmetrically arranged along its central axis in the Y-axis direction. The second and third pattern portions are symmetrically arranged along the central axis of the first pattern portion in the X-axis direction and also symmetrically arranged along the central axis of the first pattern portion in the Y-axis direction.

[0043] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A printing screen, comprising a roller; characterized in that: The roller is provided with a plurality of holes spaced apart, and the plurality of holes are combined to form a first pattern portion with a rectangular structure; the roller is also provided with a trailing groove, which is located at the tail end of the roller, and the length of the trailing groove extends along the width direction of the first pattern portion, and the length of the trailing groove is equal to the width of the first pattern portion.

2. The printing screen as described in claim 1, characterized in that: The plurality of mesh holes include two sets of first mesh holes arranged along the length direction of the first pattern portion, two sets of second mesh holes and several third mesh holes arranged along the width direction of the first pattern portion, the two sets of first mesh holes and the two sets of second mesh holes enclose a rectangular structure, and the several third mesh holes are disposed in the area enclosed by the two sets of first mesh holes and the two sets of second mesh holes.

3. The printing screen as described in claim 2, characterized in that, In each group of several first mesh holes: the two ends of each first mesh hole located in the middle position are respectively provided with rounded corners protruding outwards; the first mesh hole located at the front end is provided with the rounded corner at the end near the first mesh hole adjacent to it; the first mesh hole located at the tail end is provided with the rounded corner at the end near the first mesh hole adjacent to it.

4. The printing screen as described in claim 3, characterized in that: Each of the rounded corners has a semi-circular structure.

5. The printing screen as described in claim 3, characterized in that: The angle formed by the lines connecting the outward convex directions of two adjacent rounded corners is 90 degrees.

6. The printing screen as described in claim 2, characterized in that: The area enclosed by the first mesh is greater than half the area enclosed by the third mesh, and the area enclosed by the first mesh is less than the area enclosed by the third mesh.

7. The printing screen as described in claim 2, characterized in that: The area enclosed by the second mesh is less than or equal to half the area enclosed by the third mesh.

8. The printing screen as described in claim 2, characterized in that: The area enclosed by the first mesh is larger than the area enclosed by the second mesh.

9. The printing screen as described in any one of claims 1-8, characterized in that: The roller plate is also provided with a plurality of first printing holes, which are combined to form a second pattern portion with a rectangular structure. The second pattern portion is located between the first pattern portion and the trailing groove. The plurality of first printing holes are arranged along the width direction of the first pattern portion, and the length of the second pattern portion is less than or equal to the width of the first pattern portion.

10. The printing screen as described in any one of claims 1-8, characterized in that: The roller plate is also provided with a plurality of second printing holes, which are combined to form a third pattern portion with a rectangular structure. The third pattern portion is located at the end of the first pattern portion away from the trailing groove. The plurality of second printing holes are arranged along the width direction of the first pattern portion. The length of the third pattern portion is less than or equal to the width of the first pattern portion.

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