Combined printing roller of printing machine

Abstract

The utility model discloses a combined printing roller of a printing machine in the technical field of printing, which comprises a roller body, a printing coating layer is arranged on the outer wall of the roller body, a connecting inner core is arranged in the roller body, shaft head components are arranged at two ends of the connecting inner core far away from the roller body, and each shaft head component comprises a connecting ring. Through the modular design of the roller body, the connecting inner core and the shaft head assembly, disassembly and assembly of the printing roller are achieved, and maintenance and replacement are more convenient and faster. And when the printing coating layer is worn or damaged, only the roller body part needs to be replaced, and the whole printing roller does not need to be replaced, so that the maintenance cost is reduced. And the roller bodies of different specifications or materials can be replaced according to different printing requirements, so that the flexibility and the application range of the printing machine are improved. And through the design of the structures such as the connecting bolts and the limiting blocks, the roller body and the shaft head assembly are more convenient to mount and dismount, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of printing technology, specifically a combined printing roller for a printing press. Background Technology

[0002] In the field of printing technology, the printing roller is a key component of a printing press, responsible for transferring ink to the substrate to complete the printing process. Traditional printing rollers typically employ a one-piece design, meaning the roller body and shaft head assembly are molded as a single unit. However, this design presents several problems. First, once the printed coating on the roller body wears or is damaged, the entire printing roller needs to be replaced, increasing costs and wasting resources. Second, one-piece design printing rollers are relatively difficult to repair and replace, requiring significant time and manpower. Furthermore, because the roller body and shaft head assembly are integrated, it is impossible to replace the roller body with different specifications or materials to meet different printing needs, thus limiting the flexibility and applicability of the printing press. Utility Model Content

[0003] The purpose of this invention is to provide a combined printing roller for a printing press to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a combined printing roller for a printing machine, comprising a roller body, a printing coating layer on the outer wall of the roller body, a connecting core inside the roller body, and shaft head assemblies at both ends of the connecting core away from the roller body. Each shaft head assembly includes a connecting ring, and a transmission gear is fixedly connected to the inner wall of each connecting ring at one end away from the roller body. A connecting hole is provided through the inner wall of each connecting ring, and a through hole is provided through the inner wall of each transmission gear. The connecting holes are connected through the through holes that match the positions of the through holes.

[0005] As a further embodiment of this utility model: both ends of the connecting inner core pass through a connecting hole and a through hole that are matched in position.

[0006] As a further embodiment of this utility model: multiple connecting bolts are evenly threaded through the outer walls of the two connecting rings, and the ends of the multiple connecting bolts that pass through the connecting rings are in contact with the outer wall of the connecting inner core that matches the position.

[0007] As a further improvement of this utility model, limit blocks are fixedly connected to the outer walls of both ends of the connecting inner core.

[0008] As a further improvement of this utility model: the inner wall of the roller body is provided with a through-connecting cavity, and the connecting core is inserted into the through-connecting cavity.

[0009] As a further improvement of this utility model: the inner walls of the through connecting cavity and the limiting block are both provided with through limiting cavities, and the inner diameter of the two through limiting cavities is matched with the outer diameter of the limiting block.

[0010] As a further improvement of this utility model, both of the limiting blocks are inserted into the through-limiting cavity that matches their positions.

[0011] As a further embodiment of this utility model: multiple surface fixing bolts are uniformly threaded through the outer walls of both ends of the printed coating layer, and the multiple surface fixing bolts are threaded through one end of the printed coating layer and threadedly connected to the outer wall of the roller body in a matching position.

[0012] Compared with existing technologies, the advantages of this invention are as follows: The modular design of the roller body, connecting inner core, and shaft head assembly enables the disassembly and assembly of the printing roller, making maintenance and replacement more convenient and faster. When the printing coating layer is worn or damaged, only the roller body needs to be replaced, rather than the entire printing roller, thus reducing maintenance costs. Rollers of different specifications or materials can be replaced according to different printing needs, improving the flexibility and applicability of the printing press. The design of connecting bolts and limiting blocks simplifies the installation and disassembly of the roller body and shaft head assembly, improving work efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of a combined printing roller for a printing press according to the present invention.

[0014] Figure 2 This utility model relates to a combined printing roller for a printing press. Figure 1 Enlarged structural diagram at point A;

[0015] Figure 3 This is an exploded view of the combined printing roller of a printing press according to the present invention.

[0016] Figure 4 This utility model relates to a combined printing roller for a printing press. Figure 3 Enlarged structural diagram at point B;

[0017] Figure 5 This is an enlarged schematic diagram of the structure of the shaft head assembly of the combined printing roller in a printing press according to this utility model.

[0018] In the figure: 1. Roller body; 11. Through connecting cavity; 12. Through limiting cavity; 2. Connecting inner core; 21. Limiting block; 3. Shaft head assembly; 31. Connecting ring; 32. Connecting bolt; 33. Connecting hole; 34. Transmission gear; 35. Through hole; 4. Printed coating layer; 41. Surface fixing bolt. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0021] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figures 1-5 In this embodiment of the utility model, a combined printing roller for a printing machine is mainly composed of a roller body 1, a connecting inner core 2, a shaft head assembly 3, and a printing coating layer 4.

[0024] Roller body 1: As the main body of the printing roller, its inner wall has a through connecting cavity 11 for accommodating the connecting inner core 2. In addition, a through limiting cavity 12 is also provided on the inner wall where the through connecting cavity 11 matches the position of the limiting block 21, for limiting the axial movement of the connecting inner core 2.

[0025] Connecting inner core 2: As a supporting structure inside the roller body 1, its two ends pass through the connecting holes 33 and through holes 35 in the shaft head assembly 3 and are inserted into the through connecting cavity 11 of the roller body 1. Limiting blocks 21 are also fixedly connected to the outer walls of both ends of the connecting inner core 2. These limiting blocks 21 are inserted into the through limiting cavities 12 on the roller body 1, further enhancing the stability of the structure.

[0026] Shaft head assembly 3: Located at both ends of the connecting inner core 2, each shaft head assembly 3 includes a connecting ring 31. The inner wall of the connecting ring 31 has a connecting hole 33 and a channel communicating with a through hole 35 that is opened through the inner wall of the transmission gear 34. The transmission gear 34 is used to connect with the transmission system of the printing press to realize the rotation of the printing roller. Multiple connecting bolts 32 are evenly threaded through the outer wall of the connecting ring 31. After passing through the connecting ring 31, these connecting bolts 32 contact the outer wall of the connecting inner core 2. By tightening the connecting bolts 32, the shaft head assembly 3 can be firmly fixed to the connecting inner core 2.

[0027] Printed coating layer 4: Located on the outer wall of roller body 1, used for direct contact and printing of media such as paper. Multiple surface fixing bolts 41 are evenly threaded through the outer walls at both ends of the printed coating layer 4. These surface fixing bolts 41 pass through the printed coating layer 4 and are threadedly connected to the outer wall of roller body 1, ensuring that the printed coating layer 4 is firmly attached to roller body 1.

[0028] The working principle of this invention is as follows: In use, the transmission gear 34 in the shaft head assembly 3 is first driven to rotate through the transmission system, which in turn drives the connecting inner core 2 and the roller body 1 to rotate together. Since the connecting inner core 2 is inserted into the through-hole limiting cavity 12 of the roller body 1 via the limiting block 21, and the shaft head assembly 3 is securely connected to the connecting inner core 2 via the connecting bolts 32, the entire printing roller structure is very stable and can withstand large torque and axial force. Simultaneously, the printing coating layer 4 is firmly attached to the roller body 1 via surface fixing bolts 41, ensuring that it will not fall off or shift during the printing process. When the printing roller rotates, the printing coating layer 4 comes into contact with the paper or other media, transferring ink onto the media to complete the printing task.

[0029] In summary, the combined printing roller for printing machines provided by this utility model has the advantages of simple structure, good stability, and easy replacement of printing coating layer, which can significantly improve printing efficiency and printing quality.

[0030] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0031] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A printing machine combined printing roller comprising a roller body (1), characterized in that: The outer wall of the roller body (1) is provided with a printed cladding layer (4), the inside of the roller body (1) is provided with a connecting inner core (2), the connecting inner core (2) is provided with a shaft head assembly (3) away from both ends of the roller body (1) respectively, the two shaft head assemblies (3) each include a connecting ring (31), the two connecting rings (31) are fixedly connected with a transmission gear (34) away from the inner wall of one end of the roller body (1) respectively, the inner wall of the two connecting rings (31) is throughly provided with a connecting hole (33), the inner wall of the two transmission gears (34) is throughly provided with a through hole (35), and the two connecting holes (33) are throughly connected with the position-matched through holes (35).

2. A printing machine combination printing roller as claimed in claim 1, characterized in that: Both ends of the connecting inner core (2) pass through the position-matched connecting hole (33) and the through hole (35).

3. A printing machine combination printing roller as claimed in claim 1, characterized in that: The outer wall of the two connecting rings (31) is uniformly throughly screwed with a plurality of connecting bolts (32), and the outer wall of the position-matched connecting inner core (2) is contacted by the one end of the connecting ring (31) through the plurality of connecting bolts (32).

4. The printing machine combination printing roller according to claim 1, characterized in that: The outer wall of the connecting inner core (2) is fixedly connected with a limiting block (21).

5. The printing machine combination printing roller according to claim 1, characterized in that: The inner wall of the roller body (1) is throughly provided with a through connecting cavity (11), and the connecting inner core (2) is throughly inserted into the through connecting cavity (11).

6. A printing machine combination printing roller as claimed in claim 5, characterized in that: The inner wall of the through connecting cavity (11) and the limiting block (21) is provided with a through limiting cavity (12), and the inner diameter of the two through limiting cavities (12) is matched with the outer diameter of the limiting block (21).

7. A printing machine combination printing roller as claimed in claim 4, characterized in that: The two limiting blocks (21) are inserted into the position-matched through limiting cavities (12).

8. The printing machine combination printing roller according to claim 1, characterized in that: The outer wall of the printed cladding layer (4) is uniformly throughly screwed with a plurality of surface fixed bolts (41), and the outer wall of the position-matched roller body (1) is screwed with the one end of the printed cladding layer (4) through the plurality of surface fixed bolts (41).

Images