Separating type electric carving printing plate roller

Abstract

The utility model relates to the technical field of printing, and discloses a separating type electric carving printing plate roller which comprises a roller shaft, a plurality of positioning strips are arranged on the side wall of the roller shaft, and threads are arranged at the positions, close to the two ends, of the side wall. The roller body is composed of a plurality of groups of splicing blocks, the splicing blocks are arc-shaped blocks, the splicing blocks in the same group are distributed around the roller shaft to form a cylinder, positioning grooves matched with the positioning strips are formed in the inner sides of the splicing blocks, the splicing blocks are arranged in the axial direction of the roller shaft to form a round roller, and embedded structures matched with each other are arranged on the two sides of each splicing block; the jacking mechanism comprises positioning rings and clamping rings, the positioning rings are arranged at the two ends of the roller body on the roller shaft in a sleeving mode, the side walls of the positioning rings are matched with the end faces of the roller bodies adjacent to the positioning rings, the clamping rings are arranged at the two ends of the roller shaft in a threaded connection mode and arranged on the sides, away from the roller bodies, of the positioning rings, and threaded grooves matched with threads are formed in the inner walls of the clamping rings. The printing roller has the advantages that on the basis of the structure of an existing printing roller, more decomposition is carried out, and replacement and maintenance are convenient.

Description

Technical Field

[0001] This utility model relates to the field of printing technology, specifically to a detachable electro-engraving printing roller. Background Technology

[0002] Printing rollers, also known as steel rollers, can be divided into hollow rollers and solid rollers based on their structure, and into rollers with and without shafts based on their shaft configuration. They are a widely used high-precision tool in the printing industry. The main manufacturing process of printing rollers involves first copper plating the surface of the roller, then using a gravure engraving machine to engrave the desired pattern onto its surface, followed by chrome plating. Once completed, they are delivered to the printing plant. In the printing field, printing rollers are often used for printing on plastic packaging. Furthermore, after the initial printing, a secondary printing process is often performed using electro-engraved printing rollers.

[0003] Currently, in the printing process, secondary printing is indeed required after the initial printing. However, in actual use, it has been found that the surface of most printing rollers is easily damaged after prolonged use, necessitating replacement. Most existing printing rollers are either a one-piece structure or a four-part assembly. This design can easily increase costs when replacement is needed. Utility Model Content

[0004] To solve the above-mentioned problems, this utility model proposes a detachable electro-engraving printing roller that is more easily replaced and maintained by further decomposing the existing printing roller structure.

[0005] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is: a detachable electro-engraving printing roller, comprising:

[0006] The roller has several positioning strips on its side wall and threads near both ends of the side wall.

[0007] The roller body is composed of several sets of splicing blocks. The splicing blocks are arc-shaped blocks and the splicing blocks in the same set are distributed around the roller shaft to form a cylindrical shape. The inner side of the splicing block is provided with a positioning groove for matching positioning strips. Each set of splicing blocks is arranged along the roller shaft axial direction to form a circular roller. The two sides of the splicing block are provided with mutually matching interlocking structures.

[0008] The clamping mechanism includes a positioning ring and a clamping ring. The positioning ring has two parts respectively sleeved on both ends of the roller body on the roller shaft, and its sidewall is adapted to the end face of the adjacent roller body. The clamping ring has two threaded connections at both ends of the roller shaft, and is located on the side of the positioning ring away from the roller body. The inner wall of the clamping ring is provided with a threaded groove matching the thread.

[0009] Furthermore, the positioning strip has a T-shaped cross-section, and the positioning groove is a T-shaped groove that matches the positioning strip.

[0010] Furthermore, there are four positioning strips at equal intervals, and four splicing blocks in the same group are provided, each corresponding to one of the four positioning strips.

[0011] Furthermore, the interlocking structure includes interlocking protrusions and grooves, which are respectively located at opposite positions on opposite sides of the same splicing block.

[0012] Furthermore, the positioning ring has a through hole at its center for the roller shaft to slide through, and the two positioning rings have slots and blocks on the side of the roller body that are adapted to the protrusions and grooves on the side wall of the roller body.

[0013] Compared with existing technologies, this invention has the following advantages: the roller body is composed of several sets of splicing blocks, which means that when maintenance or replacement of a part of the roller is required, it is not necessary to replace the entire roller; only the damaged splicing block needs to be disassembled individually, greatly reducing maintenance costs. The cooperation of the positioning strip and positioning groove ensures the precise positioning and connection stability of the splicing blocks during installation, while also facilitating disassembly and installation. The protrusions and grooves in the interlocking structure further ensure a tight connection between the splicing blocks and facilitate separation. When a splicing block is damaged or worn, it can be easily removed using the interlocking relationship of the protrusions and grooves without damaging the surrounding splicing blocks. The slots and blocks on the positioning ring match the protrusions and grooves, effectively preventing the splicing blocks from loosening during operation, while the clamping ring is threaded onto the roller shaft, providing axial clamping force for the roller body. This detachable structure is not only more flexible in daily maintenance, but also allows for targeted repair of damage to different parts during long-term use, avoiding the scrapping of the entire roller due to localized problems, thus improving the efficiency and lifespan of the equipment. Attached Figure Description

[0014] Figure 1 This is a three-dimensional representation of the present invention. Figure 1 ;

[0015] Figure 2 This is a three-dimensional representation of the present invention. Figure 2 ;

[0016] Figure 3 This is the front view of this utility model;

[0017] Figure 4 This is a schematic diagram of a set of splicing blocks of this utility model;

[0018] Figure 5 This is a structural schematic diagram of the splicing block part of this utility model.

[0019] As shown in the figure: 1. Roller; 2. Positioning strip; 3. Thread; 4. Splicing block; 5. Positioning groove; 6. Positioning ring; 7. Clamping ring; 8. Protrusion; 9. Groove. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] Combined with appendix Figure 1 Appendix Figure 3 Appendix Figure 4 A separable electro-engraving printing roller includes: a roller shaft 1 with several positioning strips 2 on its sidewalls and threads 3 near both ends of the sidewalls; and a roller body composed of several sets of splicing blocks 4. Each splicing block 4 is an arc-shaped block, and the blocks in the same group are distributed around the roller shaft 1 to form a cylindrical shape. The inner side of each splicing block 4 has a positioning groove 5 that matches the positioning strips 2. The positioning strips 2 have a T-shaped cross-section, and the positioning grooves 5 are T-shaped grooves that match the positioning strips 2, which improves the positioning stability of the splicing blocks 4 on the roller shaft 1. The mutual cooperation of the T-shaped structures prevents circumferential displacement of the splicing blocks 4 on the roller shaft 1, ensuring the structural robustness of the roller body. Four positioning strips 2 are evenly spaced, and four splicing blocks 4 are arranged in the same group, corresponding one-to-one with the four positioning strips 2. This helps to distribute the force on the roller body more evenly, disperse the pressure borne by the roller body during operation, and improve the overall load-bearing capacity.

[0022] Combined with appendix Figure 1 Appendix Figure 5 Each set of splicing blocks 4 is arranged axially along the roller shaft 1 to form a circular roller. The splicing blocks 4 are provided with matching interlocking structures on both sides. The interlocking structure includes protrusions 8 and grooves 9 that can interlock with each other. The protrusions 8 and grooves 9 are respectively located at opposite positions on opposite sides of the same splicing block 4, which facilitates precise splicing between splicing blocks 4, ensures tight connection between adjacent splicing blocks 4, and enhances the integrity and stability of the roller body.

[0023] Combined with appendix Figure 2 Appendix Figure 3 The clamping mechanism includes a positioning ring 6 and a clamping ring 7. The positioning ring 6 has two rings respectively fitted onto both ends of the roller body on the roller shaft 1, with its sidewalls adapted to the adjacent roller body end faces. The clamping ring 7 has two threaded connections located at both ends of the roller shaft 1, on the side of the positioning ring 6 away from the roller body. The inner wall of the clamping ring 7 has threaded grooves matching the threads 3. The positioning ring 6 has a through hole at its center for the roller shaft 1 to slide through. The two positioning rings 6, near the roller body, respectively have slots and blocks that adapt to the protrusions 8 and grooves 9 on the sidewalls of the roller body. This facilitates the installation and positioning of the positioning ring 6 and further enhances the connection stability between the roller body and the positioning ring 6, allowing the clamping mechanism to better fix the roller body.

[0024] The specific implementation method of this utility model is as follows: Place the roller shaft 1 in a suitable position, install the four splicing blocks 4 of the same group around the roller shaft 1, align the positioning groove 5 on the inner side of the splicing block 4 with the positioning strip 2 and slide it in, arrange each group of splicing blocks 4 along the axial direction of the positioning strip 2, and ensure that the splicing blocks 4 are interlocked by the protrusion 8 and the groove 9 to form a complete roller body.

[0025] Next, two positioning rings 6 are respectively fitted onto the two ends of the roller body on the roller shaft 1. The side wall of the positioning ring 6 is adapted to the end face of the adjacent roller body, and the slot and block on the side of the positioning ring 6 close to the roller body are engaged with the protrusion 8 and groove 9 on the side wall of the roller body to further fix the roller body.

[0026] Finally, the two clamping rings 7 are threaded onto the two ends of the roller shaft 1 through the threaded grooves of the matching threads 3 at both ends on the inner wall, and are located on the side away from the roller body from the positioning ring 6. The clamping rings 7 are rotated to move them toward the positioning ring 6, applying axial pressure to the roller body to ensure a tight connection and complete the installation.

[0027] Install roller 1 on the printing equipment. The printing equipment drives roller 1 to rotate the roller body for printing. During the printing process, the printing roller performs electro-engraving printing as the equipment rotates. If a splicing block 4 is damaged, reverse the operation: first loosen and remove clamping ring 7, then remove positioning ring 6, then separate the damaged splicing block 4, replace it with a new splicing block 4, and reinstall it according to the above steps to continue using it.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; for those skilled in the art, the specific meaning of the above term in this utility model can be understood according to the specific circumstances.

[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A split electrographic printing plate cylinder characterized by, include: The roller (1) has several positioning strips (2) on its side wall and threads (3) near both ends of the side wall; The roller body is composed of several sets of splicing blocks (4). The splicing blocks (4) are arc-shaped blocks and the same set of splicing blocks (4) are distributed around the roller shaft (1) to form a cylindrical shape. The inner side of the splicing block (4) is provided with a positioning groove (5) matching the positioning strip (2). Each set of splicing blocks (4) is arranged along the roller shaft (1) axially to form a circular roller. The two sides of the splicing block (4) are provided with mutually matching interlocking structures. The clamping mechanism includes a positioning ring (6) and a clamping ring (7). The positioning ring (6) has two rings respectively sleeved on the two ends of the roller body on the roller shaft (1), and its sidewall is adapted to the end face of the adjacent roller body. The clamping ring (7) has two threaded connections on the two ends of the roller shaft (1) and is located on the side of the positioning ring (6) away from the roller body. The inner wall of the clamping ring (7) is provided with a threaded groove with matching thread (3).

2. A separable electrostatic printing plate roller according to claim 1, characterized in that: The positioning strip (2) has a T-shaped cross-section, and the positioning groove (5) is a T-shaped groove that matches the positioning strip (2).

3. A separable electrostatic printing plate roller according to claim 1, characterized in that: The positioning strips (2) are provided at equal intervals, and the splicing blocks (4) in the same group are provided at four intervals and correspond one-to-one with the four positioning strips (2).

4. The separable electrostatic printing plate roller of claim 1 wherein: The interlocking structure includes interlocking protrusions (8) and grooves (9), which are respectively located at opposite positions on one side of the same splicing block (4).

5. A detachable electro-engraving printing roller according to claim 4, characterized in that: The positioning ring (6) has a through hole in the center for the roller shaft (1) to slide through. The two positioning rings (6) are respectively provided with slots and blocks that are compatible with the protrusions (8) and grooves (9) on the side wall of the roller body.

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