Printing plate roller based on improved quadrilateral lattice points

Abstract

The utility model relates to a printing plate roller based on improved quadrilateral lattice points, the printing plate roller is installed on a printing machine, the printing plate roller comprises a roller body, printing lattice points, a supporting structure and a connecting structure, the roller body is of a cylinder structure, the printing lattice points are arranged on the outer surface of the side face of the roller body, and the supporting structure is connected with the connecting structure. The supporting structures are fixed to the two bottom faces of the roller body, one end of each connecting structure is connected with the bottom face of the roller body, the other end of each connecting structure is connected with a printing machine, the printing dots comprise quadrilateral ink cells and small circular ink cells, and the small circular ink cells are placed in the middle positions formed after the four quadrilateral ink cells are arranged. Compared with the prior art, the utility model has the advantages of solving the quality problem that the laser plate ground color printing is floating and not solid, solving the quality problem that the laser plate line edge printing saw teeth are not smooth, and the like.

Description

Technical Field

[0001] The utility model relates to a printing plate roller, in particular to a printing plate roller based on improved quadrilateral dots. Background Art

[0002] The laser etching process can solve the problems of blurred edges of electronic engraved images and unclear small images; it can solve the requirements for special depth of the plate roller; it can meet the customer's requirements for special dot shapes. The many advantages of laser technology have led more and more customers to choose laser plates.

[0003] Dots are the direct carriers of ink and transfer it to the substrate. The quality of dots directly determines the quality of the printing roller. Therefore, the shape, arrangement and depth of dots are crucial, which directly determine the quality of the laser plate roller and the customer's experience.

[0004] As the volume of laser plates increases, customers' requirements become higher and higher, and special needs also increase. However, due to the characteristics of the laser etching process, such as Figure 2 As shown, the existing printing plate roller adopts quadrilateral dots. For the dots of this structure, the deeper the plate roller is, the more rounded the four corners of the dots are, and the larger the area of ​​the wall formed between the dots is, which is not conducive to the leveling of the ink and printing, as shown in Figures 4(a) and 4(b).

[0005] Therefore, how to solve the problem that the screen wall in the middle of the dots is large and is not conducive to printing has become a technical problem that needs to be solved. Utility Model Content

[0006] The purpose of the utility model is to provide a printing plate roller based on improved quadrilateral dots in order to overcome the defects of the prior art.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] According to one aspect of the utility model, a printing plate roller based on improved quadrilateral dots is provided, which is installed on a printing press, and the printing plate roller comprises a roller body, printing dots, a supporting structure and a connecting structure, wherein the roller body is a cylindrical structure, the printing dots are arranged on the outer surface of the side of the roller body, the supporting structure is fixed on the two bottom surfaces of the roller body, one end of the connecting structure is connected to the bottom surface of the roller body, and the other end is connected to the printing press, the printing dots comprise quadrilateral cells and small circular cells, and the small circular cells are placed in the middle position formed by arranging four quadrilateral cells.

[0009] As a preferred technical solution, adjacent quadrilateral cells form a mesh wall.

[0010] As a preferred technical solution, the diameter of the small circular cells is 0.5 to 1 of the width of the mesh wall.

[0011] As a preferred technical solution, the four corners of the quadrilateral cells are arc-shaped structures.

[0012] As a preferred technical solution, adjacent quadrilateral cells are arranged in parallel.

[0013] As a preferred technical solution, the support structure includes a first support frame and a second support frame that are integrally formed with the roller body.

[0014] As a preferred technical solution, the connection structure includes a first connection shaft connected to the first support frame and a second connection shaft connected to the second support frame.

[0015] As a preferred technical solution, the first connecting shaft is provided with a first positioning block that cooperates with a limiting groove on the printing press, and the second connecting shaft is provided with a second positioning block that cooperates with the limiting groove on the printing press.

[0016] As a preferred technical solution, the first positioning block and the first connecting shaft are an integrally formed structure, and the second positioning block and the second connecting shaft are an integrally formed structure.

[0017] As a preferred technical solution, the roller body includes a steel tube layer, a copper plating layer and a chrome plating layer from the inside to the outside, and the printing dots are located on the chrome plating layer.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] 1) The small circular cells added by the utility model make up for the problem that the corner walls of the dots are large and unfavorable for printing;

[0020] 2) The utility model solves the quality problem of laser plate base color printing with spotty printing through the above-mentioned dot structure;

[0021] 3) The utility model solves the quality problem of uneven jagged edges of laser printing lines through the above-mentioned dot structure;

[0022] 4) The dot editing of the utility model is relatively easy to operate and has strong stability, which solves the defects of deep plate process and rounded corners of the four sharp corners of the dots;

[0023] 5) The utility model connects the connecting shaft to the roller body through the support frame, which greatly improves the reliability;

[0024] 6) The connecting shaft of the utility model is provided with a positioning block that cooperates with the limiting groove on the printing press, thereby limiting the position of the roller body and preventing deviation, which greatly improves the convenience and accuracy of installation;

[0025] 7) The copper plating layer and the chrome plating layer of the utility model can increase the hardness of the roller body, and the printing dots are located on the chrome plating layer, further improving the printing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model;

[0027] Figure 2 It is a structural diagram of existing outlets;

[0028] Figure 3 It is a structural schematic diagram of the improved network point of the utility model;

[0029] Figures 4(a) and 4(b) are schematic diagrams of printing patterns of existing dots;

[0030] FIG. 5( a ) and FIG. 5( b ) are schematic diagrams of printing patterns of the dots of the present invention.

[0031] Among them, 1 is a roller body, 2 is a printing dot, 21 is a quadrilateral mesh cell, 22 is a small circular mesh cell, 23 is a mesh wall, 3 is a first support frame, 4 is a first connecting shaft, 5 is a first positioning block, 6 is a second support frame, 7 is a second connecting shaft, and 8 is a second positioning block. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0033] like Figure 1 As shown, a printing plate roller based on improved quadrilateral dots is installed on a printing press, wherein the printing plate roller comprises a roller body 1, printing dots 2, a supporting structure and a connecting structure, wherein the roller body 1 is a cylindrical structure, the printing dots 2 are arranged on the outer surface of the side of the roller body 1, the supporting structure is fixed on the two bottom surfaces of the roller body 1, one end of the connecting structure is connected to the bottom surface of the roller body 1, and the other end is connected to the printing press, the printing dots 2 comprise quadrilateral cells 21 and small circular cells 22, and the small circular cells 22 are placed in the middle position formed by arranging four quadrilateral cells 21.

[0034] That is, the quadrilateral dotting process of the utility model is to edit and add a small circular cell 22 in the middle of the four quadrilateral cells 21 after the quadrilateral cells 21 are arranged. The small circular cell 22 is placed in the middle of the mesh wall formed by the four quadrilateral cells 21. The added small circular cell 22 makes up for the problem that the mesh wall at the corner of the mesh point is large and is not conducive to printing. Figure 3 shown.

[0035] The four corners of the quadrilateral cells 21 are arc-shaped structures. Adjacent quadrilateral cells 21 are arranged in parallel. A mesh wall 23 is formed between adjacent quadrilateral cells 21. The diameter of the small circular cells 22 is 0.5 to 1 of the width of the mesh wall 23, and can be further preferably 0.75. By setting the small circular cells 22 of this structure, the defects of the plate process being deep and the four sharp corners of the dots being rounded are solved, thereby solving the quality problem of the laser plate bottom color printing being flowery and unrealistic and solving the quality problem of the laser plate line edge printing being jagged and not smooth. Figure 5(a) and 5(b) shown.

[0036] The support structure includes a first support frame 3 and a second support frame 6 which are integrally formed with the roller body 1; the connection structure includes a first connection shaft 4 connected to the first support frame 3 and a second connection shaft 7 connected to the second support frame 6; the connection shaft of the utility model is connected to the roller body through the support frame, which greatly improves the reliability. As an optional solution, the support frame can adopt an annular structure.

[0037] The first connecting shaft 4 is provided with a first positioning block 5 which cooperates with the limiting groove on the printing press, and the second connecting shaft 7 is provided with a second positioning block 8 which cooperates with the limiting groove on the printing press; thereby limiting the position of the roller body, making it less likely to deviate, and greatly improving the convenience and accuracy of installation.

[0038] The first positioning block 5 and the first connecting shaft 4 are an integrally formed structure, and the second positioning block 8 and the second connecting shaft 7 are an integrally formed structure. The integrally formed structure greatly improves the reliability of the product.

[0039] The roller body 1 includes a steel tube layer, a copper plating layer and a chrome plating layer from the inside to the outside, and the printing dots 2 are located on the chrome plating layer. The copper plating layer and the chrome plating layer can increase the hardness of the roller body and improve the printing quality.

[0040] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A printing plate roller based on improved quadrilateral dots, the printing plate roller being installed on a printing press, the printing plate roller comprising a roller body (1), printing dots (2), a supporting structure and a connecting structure, the roller body (1) being a cylindrical structure, the printing dots (2) being arranged on the outer surface of the side of the roller body (1), the supporting structure being fixed on the two bottom surfaces of the roller body (1), one end of the connecting structure being connected to the bottom surface of the roller body (1), and the other end being connected to the printing press, characterized in that: The printing dots (2) include quadrilateral cells (21) and small circular cells (22), and the small circular cell (22) is placed in the middle position formed by arranging four quadrilateral cells (21).

2. A printing plate roller based on improved quadrilateral dots according to claim 1, characterized in that: A mesh wall (23) is formed between adjacent quadrilateral mesh cells (21).

3. A printing plate roller based on improved quadrilateral dots according to claim 2, characterized in that: The diameter of the small circular mesh cells (22) is 0.5 to 1 of the width of the mesh wall (23).

4. A printing plate roller based on improved quadrilateral dots according to claim 1, characterized in that: The four corners of the quadrilateral cell (21) are arc-shaped structures.

5. A printing plate roller based on improved quadrilateral dots according to claim 1, characterized in that: Adjacent quadrilateral cells (21) are arranged in parallel.

6. A printing plate roller based on improved quadrilateral dots according to claim 1, characterized in that: The support structure comprises a first support frame (3) and a second support frame (6) which are integrally formed with the roller body (1).

7. A printing plate roller based on improved quadrilateral dots according to claim 6, characterized in that: The connection structure comprises a first connection shaft (4) connected to the first support frame (3) and a second connection shaft (7) connected to the second support frame (6).

8. A printing plate roller based on improved quadrilateral dots according to claim 7, characterized in that: The first connecting shaft (4) is provided with a first positioning block (5) that cooperates with a limiting groove on the printing press, and the second connecting shaft (7) is provided with a second positioning block (8) that cooperates with the limiting groove on the printing press.

9. A printing plate roller based on improved quadrilateral dots according to claim 8, characterized in that: The first positioning block (5) and the first connecting shaft (4) are an integrally formed structure, and the second positioning block (8) and the second connecting shaft (7) are an integrally formed structure.

10. The printing plate roller based on improved quadrilateral dots according to claim 1, characterized in that: The roller body (1) comprises, from the inside to the outside, a steel tube layer, a copper-plated layer and a chrome-plated layer, and the printing dots (2) are located on the chrome-plated layer.

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