A printing roller for printing presses that is easy to clean

Abstract

This utility model discloses a printing roller for a printing press that is easy to clean. It includes a connecting shaft with a printing roller sleeved on it. One end of the connecting shaft has a limiting piece that contacts one end of the printing roller. The end of the connecting shaft away from the limiting piece is hollow, containing a limiting cylinder. Several moving rods are slidably connected to the limiting cylinder, and each moving rod is rotatably connected to a limiting block via a connecting rod. Several slots are provided on the connecting shaft, allowing the limiting blocks to move to the outside of the connecting shaft through these slots. The ends of the moving rods away from the limiting blocks are connected to the same moving shaft. A control block is provided on the moving shaft. By pushing the control block, the printing roller can be securely installed on the connecting shaft. By controlling the control block to move in the opposite direction, the printing roller can be removed from the connecting shaft. The entire installation and disassembly process is simpler and more convenient, providing convenience for the maintenance, replacement, and daily cleaning of the printing roller.

Description

Technical Field

[0001] This utility model relates to the field of printing rollers for printing presses, and in particular to a printing roller for printing presses that is easy to clean. Background Technology

[0002] A printing press is a machine for printing text and images. Modern printing presses generally consist of mechanisms such as plate mounting, inking, printing, and paper feeding (including folding). The principle is to first make a printing plate of the text or image to be printed, mount it on the printing press, and then apply ink to the areas of the printing plate with text and images by hand or by the printing press, and then transfer it directly or indirectly to paper or other printing substrates (such as textiles or metal plates).

[0003] Utility model CN216183593U discloses a printing roller for a printing press that is easy to clean. It includes a connecting shaft, a fixed retaining ring at one end of the connecting shaft, a movable retaining ring at the other end of the connecting shaft, a forming roller disposed on the outer periphery of the connecting shaft, and a fixing assembly for fixing the movable retaining ring. This utility model provides a printing roller for a printing press that is easy to clean. The fixed and movable retaining rings fix both ends of the forming roller, and the fixing assembly connects the movable retaining ring to the connecting shaft. This facilitates the disassembly and assembly of the forming roller by removing and installing the movable retaining ring, making it convenient for workers to replace the forming roller and for comprehensive cleaning of the forming roller.

[0004] The device disclosed in the above utility model requires the disassembly of multiple fixing screw sections each time the mold roller is replaced, which is cumbersome and has low disassembly efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a printing roller for a printing press that is easy to clean, in order to solve the problems mentioned in the background art, which require the removal of multiple fixing screw sections for changing the mold roller, resulting in cumbersome operation and low disassembly efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a printing roller for a printing machine that is easy to clean, comprising a connecting shaft, on which the printing roller is sleeved. One end of the connecting shaft is provided with a limiting piece, which contacts one end of the printing roller. The end of the connecting shaft away from the limiting piece is hollow, and a limiting cylinder is provided inside it. Several moving rods are slidably connected to the limiting cylinder, and each of the moving rods is rotatably connected to a limiting block via a connecting rod. Several slots are provided on the connecting shaft, through which the limiting blocks can move to the outside of the connecting shaft. The ends of the moving rods away from the limiting blocks are connected to the same moving shaft. A control block is provided on the moving shaft, located outside the connecting shaft. A baffle is provided at the end of the limiting cylinder away from the control block, and the baffle is installed on the inner wall of the connecting shaft.

[0007] Preferably, a rubber pad is provided on the end face of the limiting piece and the several limiting blocks that are close to each other.

[0008] Preferably, the outer curved surface of the limiting cylinder is provided with a plurality of first connecting grooves, and the moving rod is slidably adapted to the corresponding first connecting groove.

[0009] Preferably, a second connecting groove is provided on the outer curved surface of each of the several movable rods, and the limiting block is rotatably connected in the second connecting groove through a connecting rod.

[0010] Preferably, a positioning ring is provided inside the connecting shaft, and the moving shaft is slidably connected to the positioning ring.

[0011] Preferably, a positioning hole is provided on the bottom wall of the control block, and an elastic pin is provided on the outer curved surface of the connecting shaft, with the elastic pin and the positioning hole on the same plane.

[0012] Preferably, a third connecting groove is provided on the connecting shaft, and the control block is connected to the outside of the connecting shaft through the third connecting groove. The size of the control block is larger than the size of the third connecting groove.

[0013] The beneficial effects of this utility model are: In this invention, the printing roller can be securely installed on the connecting shaft by pushing the control block to move. By controlling the control block to move in the opposite direction, the printing roller can be removed from the connecting shaft. The entire installation and disassembly process is simpler and more convenient, providing convenience for the maintenance, replacement, and daily cleaning of the printing roller. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a printing roller for a printing machine that is easy to clean, as proposed in this utility model. Figure 2 This utility model provides a schematic diagram of the connecting shaft structure for a printing roller used in a printing machine that is easy to clean. Figure 3 This utility model provides a schematic diagram of the internal structure of the connecting shaft of a printing roller for a printing machine that is easy to clean. Figure 4 This is a partial side view cross-sectional structural diagram of a printing roller for a printing machine that is easy to clean, as proposed in this utility model.

[0015] In the diagram: 1. Connecting shaft; 2. Printing roller; 3. Limiting plate; 4. Limiting cylinder; 5. Moving rod; 6. Connecting rod; 7. Limiting block; 8. Groove; 9. Control block; 10. Rubber pad; 11. First connecting groove; 12. Second connecting groove; 13. Positioning ring; 14. Positioning hole; 15. Elastic pin; 16. Third connecting groove; 17. Moving shaft; 18. Baffle. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figure 1-4 A printing roller for a printing press that is easy to clean includes a connecting shaft 1, on which a printing roller 2 is sleeved. One end of the connecting shaft 1 is provided with a limiting piece 3, which contacts one end of the printing roller 2. The end of the connecting shaft 1 away from the limiting piece 3 is hollow, and a limiting cylinder 4 is provided inside it. Several moving rods 5 are slidably connected to the limiting cylinder 4. Each of the moving rods 5 is rotatably connected to a limiting block 7 via a connecting rod 6. Several slots 8 are provided on the connecting shaft 1, through which the limiting blocks 7 can move to the outside of the connecting shaft 1. The ends of the moving rods 5 away from the limiting blocks 7 are connected to the same moving shaft 17. A control block 9 is provided on the moving shaft 17, which is located outside the connecting shaft 1. A baffle 18 is provided at the end of the limiting cylinder 4 away from the control block 9, and the baffle 18 is installed on the inner wall of the connecting shaft 1.

[0018] When the printing roller 2 needs to be installed on the connecting shaft 1, first, the printing roller 2 is sleeved on the connecting shaft 1 so that the bottom end of the printing roller 2 contacts the limiting piece 3. Then, the operator holds down the control block 9 and pushes the control block 9 towards the limiting piece 3. During the movement of the control block 9, the control block 9 drives the moving shaft 17 and several moving rods 5 connected to the moving shaft 17 to move forward synchronously until the moving rods 5 drive the limiting block 7 to move to contact the baffle 18. When the limiting block 7 contacts the baffle 18, the pushing force continues to be applied, so that the baffle 18 provides resistance to the limiting block 7, thereby causing the connecting rod 6 to rotate, driving several limiting blocks 7 to move to the outside of the connecting shaft 1, and move through the slot 8 to the outside of the connecting shaft 1 to contact the wall surface of the printing roller 2, thereby achieving the purpose of firmly installing the printing roller 2 on the connecting shaft 1.

[0019] Specifically, in this embodiment, rubber pads 10 are provided on the end faces of the limiting plate 3 and the several limiting blocks 7 that are close to each other. The rubber pads 10 can increase the friction between the limiting plate 3 and the limiting blocks 7 and the printing roller 2, thereby making the limiting relationship between the limiting plate 3 and the limiting blocks 7 on the printing roller 2 more stable, and further improving the connection stability between the printing roller 2 and the connecting shaft 1.

[0020] Specifically, in this embodiment, a plurality of first connecting grooves 11 are provided on the outer curved surface of the limiting cylinder 4. The moving rod 5 is slidably adapted to the corresponding first connecting groove 11, so that the moving rod 5 can only move along the direction of the first connecting groove 11 when it moves, thereby restricting the moving direction of the moving rod 5, so that it can drive the limiting block 7 to move to the corresponding groove 8.

[0021] Specifically, in this embodiment, a second connecting groove 12 is provided on the outer curved surface of several moving rods 5. The limiting block 7 is rotatably connected in the second connecting groove 12 through the connecting rod 6. The setting of the second connecting groove 12 facilitates the rotatable connection between the connecting rod 6 and the moving rod 5, thereby realizing the purpose of the limiting block 7 being rotatably connected to the moving rod 5 through the connecting rod 6.

[0022] Specifically, in this embodiment, a positioning ring 13 is provided inside the connecting shaft 1, and the moving shaft 17 is slidably connected to the positioning ring 13, so that the moving shaft 17 can only move along the direction of the positioning ring 13 when it moves, thereby providing a guiding effect for the moving shaft 17 and ensuring that the moving shaft 17 is always at the center position of the connecting shaft 1.

[0023] Specifically, in this embodiment, a positioning hole 14 is provided on the bottom wall of the control block 9, and an elastic pin 15 is provided on the outer curved surface of the connecting shaft 1. The elastic pin 15 and the positioning hole 14 are on the same plane, so that when the control block 9 moves to an appropriate position, the elastic pin 15 can be inserted into the positioning hole 14 to restrict the control block 9 to that position, thereby locking the position of the limiting block 7.

[0024] Specifically, in this embodiment, a third connecting groove 16 is provided on the connecting shaft 1. The control block 9 is connected to the outside of the connecting shaft 1 through the third connecting groove 16, and the size of the control block 9 is larger than the size of the third connecting groove 16. The setting of the third connecting groove 16 allows the control block 9 to pass through the connecting shaft 1 and connect to the moving shaft 17. The size setting of the control block 9 covers the third connecting groove 16, thereby preventing dust from entering the device through the third connecting groove 16.

[0025] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A printing roller for a printing press that is easy to clean, comprising a connecting shaft (1) on which a printing roller (2) is sleeved, characterized in that: One end of the connecting shaft (1) is provided with a limiting piece (3), which is in contact with one end of the printing roller (2). The end of the connecting shaft (1) away from the limiting piece (3) is hollow, and a limiting cylinder (4) is provided inside it. Several moving rods (5) are slidably connected to the limiting cylinder (4). Each of the moving rods (5) is rotatably connected to a limiting block (7) through a connecting rod (6). Several slots (8) are provided on the connecting shaft (1). The limiting block (7) can be moved to the outside of the connecting shaft (1) through the slots (8). The ends of the moving rods (5) away from the limiting block (7) are connected to the same moving shaft (17). A control block (9) is provided on the moving shaft (17). The control block (9) is located outside the connecting shaft (1). A baffle (18) is provided at the end of the limiting cylinder (4) away from the control block (9). The baffle (18) is installed on the inner wall of the connecting shaft (1).

2. The printing roller for a printing press that is easy to clean according to claim 1, characterized in that: Rubber pads (10) are provided on the end faces of the limiting piece (3) and the several limiting blocks (7) that are close to each other.

3. A printing roller for a printing press that is easy to clean, as described in claim 2, characterized in that: The outer curved surface of the limiting cylinder (4) is provided with a number of first connecting grooves (11), and the moving rod (5) slides and adapts to the corresponding first connecting groove (11).

4. A printing roller for a printing press that is easy to clean, as described in claim 3, characterized in that: A second connecting groove (12) is provided on the outer curved surface of several of the moving rods (5), and the limiting block (7) is rotatably connected in the second connecting groove (12) through the connecting rod (6).

5. A printing roller for a printing press that is easy to clean, as described in claim 4, characterized in that: A positioning ring (13) is provided inside the connecting shaft (1), and the moving shaft (17) is slidably connected to the positioning ring (13).

6. A printing roller for a printing press that is easy to clean, as described in claim 5, characterized in that: The bottom wall of the control block (9) is provided with a positioning hole (14), and the outer curved surface of the connecting shaft (1) is provided with an elastic pin (15). The elastic pin (15) and the positioning hole (14) are on the same plane.

7. A printing roller for a printing press that is easy to clean, as described in claim 6, characterized in that: The connecting shaft (1) has a third connecting groove (16), and the control block (9) is connected to the outside of the connecting shaft (1) through the third connecting groove (16). The size of the control block (9) is larger than the size of the third connecting groove (16).

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