Printing roller structure for film printing

Abstract

The utility model provides a printing roller structure for film printing, which is suitable for the technical field of film printing, and adopts the technical scheme that the printing roller structure comprises a first assembly block, a printing main shaft, a second assembly block, a printing plate main body and a positioning hole, the side, away from the first assembling block, of the printing main shaft is slidably sleeved with a second assembling block, a printing plate body is arranged between the first assembling block and the second assembling block, and positioning holes are symmetrically formed in the two sides of the printing plate body. The printing plate body and the printing roller can be rapidly fixed or separated, the printing plate body is convenient to replace, and meanwhile the length of the printing roller can be adjusted according to the requirement of a printing machine.

Description

Technical Field

[0001] This utility model relates to the field of film printing technology, and in particular to a printing roller structure for film printing. Background Technology

[0002] Film printing is a traditional printing process mainly used for high-quality images and text printing. The film printing process includes design, plate making, printing, and post-processing. Among these, plate making is the core step, which involves making the designed pattern or text into film using special plate-making equipment, and then placing it on a printing press for printing. This printing method is similar to the process of taking a photograph. A semi-transparent film is made by exposing the image to film, and then the printing plate is made based on this film. During the plate-making process, the photosensitive emulsion layer on the film undergoes chemical changes due to light exposure. These changes are ultimately transformed into an image that can be engraved on the printing plate.

[0003] In the film printing process, printing rollers play a crucial role. However, most printing rollers on the market are currently fixedly connected to the printing plate. This means that whenever the printing plate needs to be changed, the entire printing roller must be replaced. This design not only increases the complexity and cost of operation but also significantly reduces the ease of use of the printing roller. Furthermore, the length of existing printing rollers is usually fixed and cannot be flexibly adjusted according to the specific needs of the printing press. When the length of the printing roller does not match the printing press, we cannot fully utilize the performance of the printing press, which to some extent limits the functionality and application range of the printing roller. Therefore, how to improve the design of printing rollers to make it easier to change the printing plate and flexibly adjust the length according to actual needs is an urgent problem to be solved in the printing industry. Such improvements can not only increase printing efficiency and reduce operating costs but also broaden the application areas of printing rollers, injecting new vitality into the development of the printing industry.

[0004] Therefore, it is necessary to provide a new printing roller structure for film printing to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a printing roller structure for film printing.

[0006] The printing roller structure for film printing provided by this utility model includes: a first assembly block, a printing spindle, a second assembly block, a printing plate body, and positioning holes. The printing spindle is fixedly connected to one side of the first assembly block, and the second assembly block is slidably fitted onto the side of the printing spindle away from the first assembly block. The printing plate body is disposed between the first assembly block and the second assembly block, and the printing plate body is fitted onto the surface of the printing spindle. Positioning holes are symmetrically opened on both sides of the printing plate body. The first assembly block and the printing spindle are fixedly connected. The internal mechanism of the second assembly block can adjust the distance between the first assembly block and the second assembly block, and adjust the length of the printing roller according to the needs of the printing press. The internal mechanisms of the first assembly block and the second assembly block enter the positioning holes to quickly fit the printing plate body onto the printing spindle for printing.

[0007] Preferably, the inner wall of the second assembly block is symmetrically provided with limiting grooves, and the printing spindle is symmetrically fixedly connected to the surface of the second assembly block near the surface of the second assembly block. The limiting blocks slide on the inner wall of the limiting grooves. When the distance between the first assembly block and the second assembly block increases, the printing spindle moves inside the second assembly block, and the limiting blocks slide along the inner wall of the limiting grooves, ensuring that the second assembly block will not shake during the movement, thus improving the stability of the movement of the second assembly block.

[0008] Preferably, a linkage groove is provided on the side of the printing spindle near the second assembly block. A transmission screw is rotatably connected to the inner wall of the second assembly block, and the threaded surface of the transmission screw meshes with the inner wall of the linkage groove. A drive block is fixedly connected to the side of the transmission screw away from the printing spindle. Rotating the drive block causes the transmission screw to rotate on the inner wall of the second assembly block, and the threaded surface of the second assembly block contacts the inner wall of the linkage groove, causing the second assembly block to move away from the printing spindle. Adjusting the length of the printing roller and rotating the drive block in the opposite direction causes the second assembly block to move closer to the printing spindle, shortening the printing roller.

[0009] Preferably, the first and second assembly blocks have symmetrical sliding grooves on their surfaces near the printing spindle. A pressing rod is symmetrically slidably connected to the inner walls of the two sliding grooves, and the pressing rod passes through a positioning hole. A return spring is fixedly connected to one side of each pressing rod, and the side of the return spring away from the pressing rod is fixedly connected to the inner wall of the sliding groove. Pressing the pressing rod compresses the inside of the sliding groove, causing the pressing rod to compress the return spring and retract. When the printing plate body is fitted onto the surface of the printing spindle, the positioning hole and the sliding groove are aligned. Releasing the pressing rod causes the return spring to retract and retract, moving the pressing rod out of the sliding groove. The pressing rod then enters the positioning hole from inside the sliding groove, limiting the position of the printing plate body and allowing it to be quickly fitted onto the surface of the printing spindle. The symmetrically arranged sliding grooves facilitate installation of the printing plate body from above or below.

[0010] Preferably, a connecting rod is fixedly connected to the surfaces of the two extrusion rods, and the connecting rod slides on the inner wall of the sliding groove. Pulling the connecting rod causes the two extrusion rods to be simultaneously drawn into the sliding groove. Releasing the connecting rod causes the return spring to reset and open, moving the extrusion rods out of the sliding groove.

[0011] Preferably, the two extrusion rods have rounded corners at the surface edges away from the return spring, which reduces the friction at the surface edges of the extrusion rods away from the return spring. When the extrusion rods enter the positioning hole, the edge of the extrusion rod contacts the inner wall of the positioning hole, reducing wear on the inner wall of the positioning hole.

[0012] Preferably, the drive block has semi-circular grooves equidistantly spaced on its side, which increases the friction on the side of the drive block, facilitates stable gripping of the drive block, controls the rotation of the drive block, prevents the side of the drive block from being too smooth and unable to be gripped quickly, and improves the functionality of the drive block.

[0013] Compared with related technologies, the printing roller structure for film printing provided by this utility model has the following beneficial effects:

[0014] This utility model provides a printing roller structure for film printing:

[0015] 1. By installing the first assembly block, printing spindle, second assembly block, printing plate body and positioning holes, the printing plate body and printing roller can be quickly fixed or separated, making it convenient to replace the printing plate body. At the same time, the length of the printing roller can be adjusted according to the needs of the printing machine.

[0016] 2. The two extrusion rods have rounded corners at their surfaces away from the return spring, which reduces the friction at these surfaces. When the extrusion rods enter the positioning hole, the edges of the extrusion rods contact the inner wall of the positioning hole, reducing wear on the inner wall. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of this utility model;

[0018] Figure 2 A schematic diagram showing the separation of the printing spindle and the printing plate body provided by this utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of the second assembly block provided by this utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of the first assembly block provided by this utility model.

[0021] The following are the labels in the diagram: 1. First assembly block; 2. Printing spindle; 3. Second assembly block; 4. Printing plate body; 5. Positioning hole; 6. Limiting groove; 7. Limiting block; 8. Linkage groove; 9. Transmission screw; 10. Drive block; 11. Sliding groove; 12. Pressing rod; 13. Return spring; 14. Connecting rod. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 The printing roller structure for film printing includes: a first assembly block 1, a printing spindle 2, a second assembly block 3, a printing plate body 4, and positioning holes 5. The printing spindle 2 is fixedly connected to one side of the first assembly block 1. The second assembly block 3 is slidably fitted onto the side of the printing spindle 2 away from the first assembly block 1. The printing plate body 4 is disposed between the first assembly block 1 and the second assembly block 3, and the printing plate body 4 is fitted onto the surface of the printing spindle 2. Positioning holes 5 are symmetrically opened on both sides of the printing plate body 4. The first assembly block 1 and the printing spindle 2 are fixedly connected. The internal mechanism of the second assembly block 3 can adjust the distance between the first assembly block 1 and the second assembly block 3, and adjust the length of the printing roller according to the needs of the printing press. The internal mechanisms of the first assembly block 1 and the second assembly block 3 enter the positioning holes 5, and quickly fit the printing plate body 4 onto the printing spindle 2 for printing.

[0024] Example 1:

[0025] In the specific implementation process, such as Figure 2 and Figure 3 As shown, the inner wall of the second assembly block 3 is symmetrically provided with limiting grooves 6. The printing spindle 2 is symmetrically fixedly connected to the surface of the second assembly block 3, and the limiting block 7 slides on the inner wall of the limiting groove 6. When the distance between the first assembly block 1 and the second assembly block 3 increases, the printing spindle 2 moves inside the second assembly block 3, and the limiting block 7 slides along the inner wall of the limiting groove 6, ensuring that the second assembly block 3 will not shake during the movement, thus improving the stability of the movement of the second assembly block 3.

[0026] refer to Figure 3As shown, a linkage groove 8 is provided on the side of the printing spindle 2 near the second assembly block 3. A transmission screw 9 is rotatably connected to the inner wall of the second assembly block 3, and the threaded surface of the transmission screw 9 meshes with the inner wall of the linkage groove 8. A drive block 10 is fixedly connected to the side of the transmission screw 9 away from the printing spindle 2. Rotating the drive block 10 causes the transmission screw 9 to rotate on the inner wall of the second assembly block 3. The threaded surface of the second assembly block 3 contacts the inner wall of the linkage groove 8, causing the second assembly block 3 to move away from the printing spindle 2. Adjusting the length of the printing roller, rotating the drive block 10 in the opposite direction causes the second assembly block 3 to move closer to the printing spindle 2, shortening the printing roller.

[0027] refer to Figure 2 and Figure 4 As shown, the first assembly block 1 and the second assembly block 3 are symmetrically provided with sliding grooves 11 on the surfaces near the printing spindle 2. Squeezing rods 12 are symmetrically slidably connected to the inner walls of the two sliding grooves 11, and the squeezing rods 12 pass through the positioning holes 5. A return spring 13 is fixedly connected to one side of each squeezing rod 12, and the side of the return spring 13 away from the squeezing rod 12 is fixedly connected to the inner wall of the sliding groove 11. Pressing the squeezing rod 12 squeezes the inside of the sliding groove 11, causing the squeezing rod 12 to compress the return spring 13. When the printing plate body 4 is fitted onto the surface of the printing spindle 2, the positioning hole 5 and the sliding groove 11 are aligned. Releasing the squeezing rod 12 causes the return spring 13 to return to its original position and open. The squeezing rod 12 is then moved out of the sliding groove 11 and enters the positioning hole 5 from inside the sliding groove 11, limiting the position of the printing plate body 4. This allows the printing plate body 4 to be quickly fitted onto the surface of the printing spindle 2. The symmetrically provided sliding grooves 11 facilitate the installation of the printing plate body 4 from above or below.

[0028] refer to Figure 4 As shown, a connecting rod 14 is fixedly connected to the surfaces of the two extrusion rods 12, and the connecting rod 14 slides on the inner wall of the sliding groove 11. Pulling the connecting rod 14 causes the two extrusion rods 12 to be simultaneously drawn into the sliding groove 11. Releasing the connecting rod 14 causes the return spring 13 to return to its original position and open, moving the extrusion rods 12 out of the sliding groove 11.

[0029] refer to Figure 4 As shown, the two pressing rods 12 have rounded corners at the surface edges away from the return spring 13, which reduces the friction at the surface edges of the pressing rods 12 away from the return spring 13. When the pressing rods 12 enter the positioning hole 5, the edge of the pressing rods 12 contacts the inner wall of the positioning hole 5, reducing the wear on the inner wall of the positioning hole 5.

[0030] Example 2:

[0031] refer to Figure 3As shown, the drive block 10 has semi-circular grooves equidistantly opened on its side, which increases the friction of the drive block 10 side, facilitates stable gripping of the drive block 10, controls the rotation of the drive block 10, prevents the drive block 10 side from being too smooth and unable to be gripped quickly, and improves the functionality of the drive block 10.

[0032] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A printing roller structure for film printing, characterized in that, include: The assembly consists of a first assembly block (1), a printing spindle (2), a second assembly block (3), a printing plate body (4), and positioning holes (5). The printing spindle (2) is fixedly connected to one side of the first assembly block (1). The second assembly block (3) is slidably fitted on the side of the printing spindle (2) away from the first assembly block (1). The printing plate body (4) is provided between the first assembly block (1) and the second assembly block (3), and the printing plate body (4) is fitted on the surface of the printing spindle (2). Positioning holes (5) are symmetrically opened on both sides of the printing plate body (4).

2. The printing roller structure for film printing according to claim 1, characterized in that, The inner wall of the second assembly block (3) is symmetrically provided with limiting grooves (6), and the printing spindle (2) is symmetrically fixedly connected with limiting blocks (7) near the surface of the second assembly block (3), and the limiting blocks (7) slide on the inner wall of the limiting grooves (6).

3. The printing roller structure for film printing according to claim 1, characterized in that, The printing spindle (2) has a connecting groove (8) on the side near the second assembly block (3). The inner wall of the second assembly block (3) is rotatably connected to a transmission screw (9), and the thread surface of the transmission screw (9) meshes with the inner wall of the connecting groove (8). The side of the transmission screw (9) away from the printing spindle (2) is fixedly connected to a drive block (10).

4. The printing roller structure for film printing according to claim 1, characterized in that, The first assembly block (1) and the second assembly block (3) are symmetrically provided with sliding grooves (11) on the surface near the printing spindle (2). The inner walls of the two sliding grooves (11) are symmetrically connected with extrusion rods (12), and the extrusion rods (12) are connected to the positioning holes (5). The two extrusion rods (12) are fixedly connected to one side of a return spring (13), and the side of the return spring (13) away from the extrusion rods (12) is fixedly connected to the inner wall of the sliding groove (11).

5. The printing roller structure for film printing according to claim 4, characterized in that, Two of the extrusion rods (12) are fixedly connected to a connecting rod (14), and the connecting rod (14) slides on the inner wall of the sliding groove (11).

6. The printing roller structure for film printing according to claim 4, characterized in that, The two compression rods (12) have rounded corners at the surface edges away from the return spring (13).

7. The printing roller structure for film printing according to claim 3, characterized in that, The drive block (10) has semi-circular grooves equidistantly spaced on its side.

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