A quick plate changing structure for a rotary printing press

Abstract

This utility model discloses a quick plate-changing structure for a rotary printing press, relating to the technical field of rotary printing presses. It includes a plate roller, a mounting groove, and mounting blocks. The upper end of the plate roller has a mounting groove, and receiving grooves are formed on both sides of the mounting groove. A spring damping rod is installed inside the receiving groove, and a limit ball is installed at the front end of the spring damping rod. The mounting block is connected inside the mounting groove, and limit through holes are formed on both sides of the lower end of the mounting block. Mounting blocks are provided at both ends of the outer surface of the plate roller, and mounting shafts are connected to the inner sides of the mounting blocks. Mounting grooves are formed inside the mounting shafts, and roller bodies are connected inside the mounting grooves. Threaded grooves are formed inside the roller bodies. This quick plate-changing structure for a rotary printing press can quickly complete the plate changing operation through a snap-fit ​​mechanism, improving the flexibility and efficiency of the plate-changing structure during use.

Description

Technical Field

[0001] This utility model relates to the field of rotary printing press technology, specifically a quick plate changing structure for a rotary printing press. Background Technology

[0002] Rotary printing presses, also known as rotary printing presses, are devices that use roll paper as raw material and achieve efficient, continuous printing through a cylinder printing method. Rotary printing presses use roll material for continuous printing and are suitable for mass production, commonly found in newspapers, magazines, packaging, and other fields. They are mainly used for producing high-quality printed materials such as color magazines, commercial advertisements, and pictorials. Some models can also perform multi-color offset printing. During printing, a printing plate with the printed image is mounted on a plate cylinder. The inking roller transfers ink to the printing plate on the plate cylinder, which then transfers the image to a transfer roller, which in turn transfers it to the paper. Changing the printing plate refers to replacing the old plate with a new one. Different images require different printing plates on the plate cylinder. To improve the efficiency of rotary printing presses, a changing plate structure is needed; however, existing changing plate structures still have the following shortcomings:

[0003] When using existing plate changing structures, most of them require clamping and fixing devices to fix the printing plate head and tail in the plate roller. This makes it impossible for the printing press to print continuously, and an intermittent printing method with backtracking must be adopted. This reduces the printing speed and affects the printing effect, resulting in a decrease in the practicality and efficiency of the plate changing structure. Utility Model Content

[0004] The purpose of this invention is to provide a quick plate-changing structure for a rotary printing press to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick plate changing structure for a rotary printing press, comprising a plate roller, a mounting docking groove, and a mounting docking block. The upper end of the plate roller has a mounting docking groove, and receiving grooves are formed on both sides of the mounting docking groove. A spring damping rod is installed inside the receiving groove, and a limit ball is installed at the front end of the spring damping rod. The mounting docking groove is connected to the mounting docking block, and limit through holes are formed on both sides of the lower end of the mounting docking block. Mounting blocks are provided at both ends of the outer surface of the plate roller, and mounting shafts are connected to the inner sides of the mounting blocks. Mounting grooves are formed inside the mounting shafts, and roller bodies are connected inside the mounting grooves. Threaded grooves are formed inside the roller bodies, and mounting bolts are connected inside the threaded grooves.

[0006] Furthermore, the internal dimensions of the mounting docking groove are adapted to the external dimensions of the mounting docking block, and the mounting docking block is embeddedly connected to the printing roller through the mounting docking groove.

[0007] Furthermore, the spring damping rod is embedded in the receiving groove, and the spring damping rod is fixedly connected to the receiving groove by bolts.

[0008] Furthermore, the spring damping rod and the limiting ball are distributed perpendicularly, and the limiting ball is elastically connected to the receiving groove through the spring damping rod.

[0009] Furthermore, the external dimensions of the limiting ball are adapted to the internal dimensions of the limiting through hole, and the limiting ball is connected to the mounting docking block through the limiting through hole.

[0010] Furthermore, the outer side of the mounting block and the outer side of the mounting shaft are horizontally distributed, and the mounting shaft is rotatably connected to the mounting block through a connecting shaft.

[0011] Furthermore, the internal dimensions of the mounting groove are adapted to the external dimensions of the roller body, and the roller body is embeddedly connected to the mounting shaft through the mounting groove.

[0012] Furthermore, the internal dimensions of the threaded groove are adapted to the external dimensions of the mounting bolt, and the mounting bolt is rotatably connected to the ram body through the threaded groove.

[0013] This utility model provides a quick plate-changing structure for a rotary printing press, which has the following advantages:

[0014] 1. This utility model, through the installation of a connecting block, enables the quick plate-changing structure of a rotary printing press to use a spring damping rod to elastically connect the limiting ball and the receiving groove. Simultaneously, the connecting block is installed into the plate roller via the connecting groove. The internal dimensions of the limiting through-hole at the lower end of the connecting block are matched with the external dimensions of the limiting ball. This allows the connecting block to be fixed within the connecting groove by utilizing the limiting ball and the limiting through-hole. During plate changing, the printing plate's head and tail are aligned with the top of the connecting groove, and the connecting block secures the printing plate into the plate roller, thus quickly completing the plate replacement and installation, improving the overall practicality and efficiency of the plate-changing structure.

[0015] 2. By setting up the mounting slot, this utility model enables the mounting shaft and mounting block to be rotatably connected through the connecting shaft when using the quick plate changing structure of the rotary printing press. The roller body is installed into the mounting shaft through the mounting slot, and the roller body is fixedly installed in the mounting shaft through the threaded groove and mounting bolts, thereby completing the fixed installation of the plate roller. This makes the replacement of the plate roller time-saving and labor-saving, and can adapt to the specifications of printing that require quick plate roller replacement, improving the overall practicality and efficiency of the plate changing structure. Attached Figure Description

[0016] Figure 1This is a three-dimensional structural diagram of a quick plate-changing structure for a rotary printing press according to the present invention;

[0017] Figure 2 This is a three-dimensional sectional view of the installation docking block of a quick plate changing structure for a rotary printing press according to this utility model.

[0018] Figure 3 This is a three-dimensional unfolded structural diagram of the mounting shaft of a quick plate-changing structure for a rotary printing press according to this utility model.

[0019] In the diagram: 1. Printing roller; 2. Mounting docking groove; 3. Receiving groove; 4. Spring damping rod; 5. Limiting ball; 6. Mounting docking block; 7. Limiting through hole; 8. Mounting block; 9. Mounting shaft; 10. Mounting groove; 11. Roller body; 12. Threaded groove; 13. Mounting bolt. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] like Figures 1 to 3As shown, a quick plate changing structure for a rotary printing press includes a plate roller 1, a mounting groove 2, and a mounting block 6. The mounting groove 2 is located at the upper end of the plate roller 1, and receiving grooves 3 are located on both sides of the mounting groove 2. A spring damping rod 4 is installed inside the receiving groove 3, and a limiting ball 5 is installed at the front end of the spring damping rod 4. The mounting block 6 is connected inside the mounting groove 2, and limiting through holes 7 are located on both sides of the lower end of the mounting block 6. The internal dimensions of the mounting groove 2 are adapted to the external dimensions of the mounting block 6, and the mounting block 6 is embeddedly connected to the plate roller 1 through the mounting groove 2. The spring damping rod 4 is embeddedly connected to the receiving groove 3 and is fixedly connected to the receiving groove 3 by bolts. The spring damping rod 4 and the limiting ball 5 are vertically distributed, and the limiting ball 5 is elastically connected to the receiving groove 3 through the spring damping rod 4. The external dimensions of the limiting ball 5 are adapted to the internal dimensions of the limiting through holes 7, and the limiting ball 5 is connected to the limiting through holes. 7 is connected to the mounting docking block 6. The spring damping rod 4 is fixedly installed in the receiving groove 3 opened inside the plate roller 1 by fastening bolts. The limiting ball 5 is fixedly installed at the front end of the spring damping rod 4 with the fastening bolts. The spring damping rod 4 makes the limiting ball 5 elastically connected to the receiving groove 3. At the same time, the internal size of the mounting docking groove 2 opened inside the plate roller 1 is adapted to the external size of the mounting docking block 6. Thus, the mounting docking block 6 is installed into the plate roller 1 through the mounting docking groove 2. The internal size of the limiting through hole 7 opened at the lower end of the mounting docking block 6 is adapted to the external size of the limiting ball 5. Thus, the mounting docking block 6 is fixed in the mounting docking groove 2 through the limiting ball 5 and the limiting through hole 7. When changing the plate, the plate head and plate tail are connected above the mounting docking groove 2, and the plate is inserted into the plate roller 1 by using the mounting docking block 6. Thus, the plate replacement and installation are completed quickly, improving the overall practicality and efficiency of the plate changing structure.

[0022] like Figure 1 and Figure 3As shown, mounting blocks 8 are provided at both ends of the outer side of the printing roller 1, and mounting shafts 9 are connected to the inner sides of the mounting blocks 8. Mounting grooves 10 are formed inside the mounting shafts 9, and roller bodies 11 are connected inside the mounting grooves 10. Threaded grooves 12 are formed inside the roller bodies 11, and mounting bolts 13 are connected inside the threaded grooves 12. The outer sides of the mounting blocks 8 and the mounting shafts 9 are horizontally distributed, and the mounting shafts 9 are rotatably connected to the mounting blocks 8 via connecting shafts. The internal dimensions of the mounting grooves 10 are adapted to the external dimensions of the roller bodies 11, and the roller bodies 11 are embeddedly connected to the mounting shafts 9 via the mounting grooves 10. The internal dimensions of the threaded grooves 12 are adapted to the external dimensions of the mounting bolts 13, and the mounting bolts 13 are rotatably connected to the roller bodies 11 via the threaded grooves 12. The mounting shaft 9 is positioned inside the mounting block 8, allowing the mounting shaft 9 to be rotatably connected to the mounting block 8 via a connecting shaft. The internal dimensions of the mounting groove 10 inside the mounting shaft 9 are adapted to the external dimensions of the roller bodies 11 at both ends of the plate roller 1. Thus, the roller bodies 11 are installed into the mounting shaft 9 through the mounting groove 10. At the same time, the internal dimensions of the threaded groove 12 inside the roller body 11 are adapted to the external dimensions of the mounting bolt 13. Thus, the roller bodies 11 are fixedly installed inside the mounting shaft 9 through the threaded groove 12 and the mounting bolt 13, thereby completing the fixed installation of the plate roller 1. This makes the replacement of the plate roller 1 time-saving and labor-saving, and can also adapt to the specifications of the plate roller 1 that require quick replacement in printing, improving the overall practicality and efficiency of the plate changing structure.

[0023] In summary, the quick plate-changing structure of this rotary printing press, during use, firstly connects the mounting shaft 9 and the mounting block 8 via the connecting shaft. The roller body 11 is then installed into the mounting shaft 9 using the mounting groove 10. Simultaneously, the roller body 11 is fixed inside the mounting shaft 9 using the threaded groove 12 and mounting bolts 13, thus completing the fixed installation of the plate roller 1. This makes plate roller 1 replacement time-saving and labor-saving, and can adapt to the specifications of printing requiring quick plate roller 1 replacement. Next, the limiting ball 5 is elastically connected to the receiving groove 3 via the spring damping rod 4. Simultaneously, the mounting docking block 6 is installed into the plate roller 1 via the mounting docking groove 2. The limiting ball 5, in conjunction with the limiting through hole 7, fixes the mounting docking block 6 inside the mounting docking groove 2. During plate changing, the plate head and tail are aligned above the mounting docking groove 2, and the plate is secured into the plate roller 1 using the mounting docking block 6, thereby quickly completing the plate replacement and installation, improving the overall practicality and efficiency of the plate-changing structure.

[0024] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A quick plate changing structure for a rotary printing press, comprising a plate roller (1), a mounting groove (2), and a mounting block (6), characterized in that, The upper end of the printing roller (1) is provided with an installation docking groove (2), and the two sides of the installation docking groove (2) are provided with receiving grooves (3). A spring damping rod (4) is installed inside the receiving groove (3), and a limit ball (5) is installed at the front end of the spring damping rod (4). An installation docking block (6) is connected inside the installation docking groove (2), and a limit through hole (7) is opened on both sides of the lower end of the installation docking block (6). An installation block (8) is provided at both ends of the outer side of the printing roller (1), and an installation shaft (9) is connected inside the installation block (8). An installation groove (10) is opened inside the installation shaft (9), and a roller body (11) is connected inside the installation groove (10). A threaded groove (12) is opened inside the roller body (11), and an installation bolt (13) is connected inside the threaded groove (12).

2. The quick plate changing structure of a rotary printing press according to claim 1, characterized in that, The internal dimensions of the mounting docking groove (2) are adapted to the external dimensions of the mounting docking block (6), and the mounting docking block (6) is embeddedly connected to the printing roller (1) through the mounting docking groove (2).

3. The quick plate changing structure of a rotary printing press according to claim 1, characterized in that, The spring damping rod (4) is embedded in the receiving groove (3), and the spring damping rod (4) is fixedly connected to the receiving groove (3) by bolts.

4. The quick plate changing structure of a rotary printing press according to claim 1, characterized in that, The spring damping rod (4) and the limiting ball (5) are distributed perpendicularly, and the limiting ball (5) is elastically connected to the receiving groove (3) through the spring damping rod (4).

5. The quick plate changing structure of a rotary printing press according to claim 1, characterized in that, The external dimensions of the limiting ball (5) are adapted to the internal dimensions of the limiting through hole (7), and the limiting ball (5) is connected to the mounting docking block (6) through the limiting through hole (7).

6. The quick plate changing structure of a rotary printing press according to claim 1, characterized in that, The outer side of the mounting block (8) is horizontally distributed with the outer side of the mounting shaft (9), and the mounting shaft (9) is rotatably connected to the mounting block (8) through a connecting shaft.

7. The quick plate changing structure of a rotary printing press according to claim 1, characterized in that, The internal dimensions of the mounting groove (10) are adapted to the external dimensions of the roller body (11), and the roller body (11) is embeddedly connected to the mounting shaft (9) through the mounting groove (10).

8. The quick plate changing structure of a rotary printing press according to claim 1, characterized in that, The internal dimensions of the threaded groove (12) are adapted to the external dimensions of the mounting bolt (13), and the mounting bolt (13) is rotatably connected to the roller body (11) through the threaded groove (12).

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