Printing roll shaft

Abstract

The utility model discloses a printing roll shaft, which belongs to the field of printing and comprises a roll shaft body, a plurality of printing pieces are arranged on the roll shaft body and comprise printing sections and connecting sections, the printing sections are fan-shaped, one end of each connecting section is arranged on the roll shaft body, and the other end of each connecting section is arranged on the roll shaft body. The side, away from the roller shaft body, of the connecting section is connected with the side, away from the arc-shaped face, of the printing section, and the two sides of the connecting section are intermittently connected with a plurality of limiting blocks. A plurality of mounting grooves are formed in the roller shaft body, a plurality of protrusions are intermittently arranged on the two sides of an opening of each mounting groove, the roller shaft body and the printing pieces are detachably connected, when patterns need to be replaced, only the corresponding printing pieces need to be replaced, the whole roller shaft body does not need to be unloaded, and therefore the pattern replacement efficiency is improved. And meanwhile, the printing piece can be mounted only by being inserted into the mounting groove in the roller shaft body and then moving, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of printing, and particularly relates to a printing roller shaft. Background Art

[0002] The printing roller shaft is usually carefully crafted from a strong and durable metal roller core, which provides extremely stable support for it, ensuring that it can withstand various pressures during the printing process and also endowing it with sufficient strength to ensure long-term stable operation. Outside the roller core, a layer of carefully selected high-quality materials is tightly coated, such as rubber or polyurethane and other materials with good elasticity. The role of this coating layer is crucial, and it largely determines whether the ink and coating can be evenly transferred to the paper. According to different functional requirements, there are many types of printing roller shafts, and the impression roller is a common type. The impression roller can closely cooperate with the printing plate and apply an appropriate pressure to the paper during printing, so that the ink can be successfully transferred to the paper, and finally clear and accurate printing patterns and texts are formed.

[0003] Currently, most printing roller shafts are only suitable for printing single patterns (such as 201920221580.5, a printing roller). When it is necessary to print multiple different patterns, different printing roller shafts must be replaced. However, since the printing roller shaft is installed on the lifting and rotating mechanism, the overall installation and unloading process of the printing roller shaft is rather cumbersome and complex. Therefore, a printing roller shaft is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a printing roller shaft to solve the problem of replacing the whole printing roller shaft when different patterns need to be printed.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A printing roller shaft includes a roller shaft body, and a plurality of printing parts are arranged on the roller shaft body. The plurality of printing parts include printing sections and connecting sections. The printing sections are fan-shaped. One end of the connecting section is arranged on the roller shaft body, and the side of the connecting section far from the roller shaft body is connected to the side of the printing section far from the arc surface. A plurality of limiting blocks are intermittently connected to both sides of the connecting section;

[0006] A plurality of installation grooves are formed on the roller shaft body. A plurality of protrusions are intermittently arranged on both sides of the opening of the installation groove, so that the opening of the installation groove forms an intermittent groove under the action of the protrusions. The limiting blocks on the connecting section can be inserted into the installation groove through the groove.

[0007] Further, the plurality of printing parts are rotationally symmetrically arranged around the center of the roller shaft body.

[0008] Further, a contact plate is movably arranged up and down inside the installation groove.

[0009] Further, an elastic member is provided between the bottom of the abutting plate and the inner wall of the installation groove, and the elastic member provides a force for the abutting plate in the direction of moving out of the installation groove.

[0010] Further, a vertical groove is provided inside the installation groove, and a limiting rod is connected to one side of the abutting plate close to the axis of the roller body, and the limiting rod is movably arranged in the vertical groove.

[0011] Further, the limiting block on the connecting section can be blocked by the protrusion at the opening of the installation groove.

[0012] Further, a printing pattern is provided on one side of the arc surface of the printing section.

[0013] Further, the printing member can use printing sections with different sizes of arc surfaces.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] For this printing roller, through the detachable connection structure of the roller body and the printing member, when the pattern needs to be replaced, the user can easily replace the corresponding printing member without spending time and effort to uninstall the entire roller body, greatly simplifying the operation process, significantly improving the work efficiency, and making the pattern replacement fast and convenient;

[0016] For this printing roller, the installation process of the printing member is extremely simple. Just insert it into the installation groove on the roller body and then move it along to complete the installation. This simple and clear operation method not only reduces the complexity of the operation, but also saves time and labor costs, bringing great convenience to the user;

[0017] For this printing roller, the same roller body can be compatible with different printing members. This characteristic enables a printing roller to have the ability to print multiple patterns, thus significantly enhancing the adaptability of the device. Whether facing diverse printing tasks or meeting the needs of different customers, this printing roller can handle them with ease, demonstrating excellent flexibility and practicality. Description of the Drawings

[0018] Figure 1 is a three-dimensional view of the printing roller;

[0019] Figure 2 is a schematic structural diagram of a single printing member and the roller body not installed;

[0020] Figure 3 is a schematic structural diagram of a single printing member just inserted into the installation groove and not moved to the right;

[0021] Figure 4 isFigure 1 Cross-sectional view;

[0022] Figure 5 is Figure 4 The enlarged view at position A in

[0023] Figure 6 Side views of two different printed parts.

[0024] In the figure: 10, roller shaft body; 101, mounting groove; 102, groove; 103, protrusion; 104, vertical groove; 20, printed part; 210, printing section; 220, connecting section; 221, limiting block; 30, abutting plate; 310, elastic member; 320, limiting rod. Specific embodiments

[0025] The following further describes the present utility model in conjunction with embodiments.

[0026] The following embodiments are used to illustrate the present utility model, but cannot be used to limit the protection scope of the present utility model. The conditions in the embodiments can be further adjusted according to specific conditions. Any simple improvement of the method of the present utility model under the premise of the concept of the present utility model belongs to the scope required to be protected by the present utility model.

[0027] Please refer to Figure 1 , the present utility model provides a printing roller shaft, including a roller shaft body 10, and a plurality of printed parts 20 are arranged on the roller shaft body 10. The plurality of printed parts 20 are rotationally symmetrically arranged around the center of the roller shaft body 10.

[0028] Please refer to Figure 1-5 , the plurality of printed parts 20 include a printing section 210 and a connecting section 220. The printing section 210 is in a fan shape, and the printing pattern is arranged on one side of the arc surface of the printing section 210. One end of the connecting section 220 is arranged on the roller shaft body 10, and the side of the connecting section 220 away from the roller shaft body 10 is connected to the side of the printing section 210 away from the arc surface. A plurality of limiting blocks 221 are intermittently connected to both sides of the connecting section 220.

[0029] Please refer to Figure 6 , the printed part 20 can use printing sections 210 with different arc surface sizes to solve the problem that different printing patterns have different sizes, resulting in different required arc surfaces.

[0030] Please refer to Figure 1-5, a plurality of mounting grooves 101 are formed on the roller body 10. On both sides of the opening of the mounting groove 101, a number of protrusions 103 are intermittently arranged, so that an intermittent groove 102 is formed at the opening of the mounting groove 101 under the action of the protrusions 103. The limiting block 221 on the connecting section 220 can be inserted into the mounting groove 101 through the groove 102. Subsequently, the connecting section 220 is shifted to the right, and the limiting block 221 on the connecting section 220 can be blocked by the protrusions 103 at the opening of the mounting groove 101, so that the connecting section 220 cannot be directly pulled out, and then the printed part 20 is installed on the roller body 10.

[0031] A contact plate 30 is movably arranged up and down inside the mounting groove 101. An elastic member 310 is arranged between the bottom of the contact plate 30 and the inner wall of the mounting groove 101. The elastic member 310 provides a force for the contact plate 30 in the direction of moving out of the mounting groove 101. When the printed part 20 is inserted into the mounting groove 101, the contact plate 30 is squeezed by the printed part 20 and moves towards the axis direction of the roller body 10. The contact plate 30 squeezes the elastic member 310 to store energy. When the printed part 20 is shifted to the right, under the action of the contact plate 30 and the elastic member 310, the limiting block 221 and the protrusion 103 are in closer contact.

[0032] A vertical groove 104 is arranged inside the mounting groove 101. A limiting rod 320 is connected to the side of the contact plate 30 close to the axis of the roller body 10. The limiting rod 320 is movably arranged in the vertical groove 104.

[0033] The working principle and usage process of the present utility model: The roller body 10 is installed on the printing machine and can rotate slowly. As the printed part to be printed passes through the bottom of the roller body 10, the pattern on the arc surface of the printed part 20 will be printed on the printed part to be printed to complete the printing.

[0034] When different patterns are needed, first shift the printed part 20 to the left so that the left side of the printed part 20 contacts the left side of the mounting groove 101. At this time, the limiting block 221 can be moved out from the groove 102, and the printed part 20 with a different pattern is replaced, and the installation can be completed by reverse operation.

[0035] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A printing roller shaft, characterized in that: It includes a roller body (10), and a plurality of printing members (20) are arranged on the roller body (10). The plurality of printing members (20) include a printing section (210) and a connecting section (220). The printing section (210) is fan-shaped. One end of the connecting section (220) is arranged on the roller body (10), and the side of the connecting section (220) away from the roller body (10) is connected to the side of the printing section (210) away from the arc surface. A plurality of limiting blocks (221) are intermittently connected to both sides of the connecting section (220); A plurality of installation grooves (101) are formed on the roller body (10). A number of protrusions (103) are intermittently arranged on both sides of the opening of the installation groove (101). An intermittent groove (102) is formed at the opening of the installation groove (101) under the action of the protrusions (103). The limiting blocks (221) on the connecting section (220) can be inserted into the installation groove (101) through the groove (102).

2. The printing roller shaft according to claim 1, wherein: The plurality of printing members (20) are rotationally symmetrically arranged around the center of the roller body (10).

3. A printing roller shaft according to claim 1, characterized in that: A contact plate (30) is movably arranged up and down inside the installation groove (101).

4. A printing roller shaft according to claim 3, characterized in that: An elastic member (310) is arranged between the bottom of the contact plate (30) and the inner wall of the installation groove (101). The elastic member (310) provides a force for the contact plate (30) in the direction of moving out of the installation groove (101).

5. A printing roller shaft according to claim 3, characterized in that: A vertical groove (104) is arranged inside the installation groove (101). A limiting rod (320) is connected to the side of the contact plate (30) close to the axis of the roller body (10). The limiting rod (320) is movably arranged in the vertical groove (104).

6. A printing roller shaft according to claim 1, characterized in that: The limiting blocks (221) on the connecting section (220) can be blocked by the protrusions (103) at the opening of the installation groove (101).

7. A printing roller shaft according to claim 1, wherein: A printing pattern is arranged on one side of the arc surface of the printing section (210).

8. A printing roller shaft according to claim 1, characterized in that: The printing member (20) can use printing sections (210) with different sizes of arc surfaces.

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