Printer charging roller that avoids deformation of the adhesive layer

Abstract

The utility model relates to a kind of printer charging roller of avoiding adhesive layer deformation, including main roller body, the top and bottom of main roller body is provided with pipe body, and the bottom of main roller body is connected on the top of lower pipe body by bolt, the side of pipe body and main roller body apart is connected with butt joint plate respectively, the top of main roller body is provided with nut, two the butt joint plate between close left and right sides is connected with butt joint column respectively, and the outer wall of pipe body is equipped with several evenly distributed air outlet, the butt joint plate is connected with through-flow pipe, two through-flow pipes are symmetrically arranged up and down. This technical scheme makes it can be effectively telescopic, so that it can effectively adjust its inner diameter, so that the conductive rubber layer on it can effectively contact and fit, improve its use efficiency and work efficiency, and can effectively guide wind, so that it can effectively ventilate during use, improve its ventilation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of printer charging roller technology, and specifically to a printer charging roller that avoids deformation of the adhesive layer. Background Technology

[0002] Charging rollers represent a novel, environmentally friendly charging method. This method reduces ozone generation, provides uniform charging, and is noiseless, making it widely used in laser printers and also in low-speed copiers. Existing charging rollers charge the core component of the laser printer's imaging device—the organic photoconductor drum. The contact charging of the photoconductor drum surface causes stress on the conductive rubber layer of the charging roller. However, existing printer charging rollers cannot effectively extend or retract during use, preventing effective adjustment of their inner diameter. This hinders effective contact and adhesion of the conductive rubber layer, reducing efficiency and reducing ventilation efficiency. Therefore, we propose a printer charging roller that prevents rubber layer deformation. Utility Model Content

[0003] To address the shortcomings of existing technologies, this application proposes a printer charging roller that avoids deformation of the adhesive layer, enabling it to effectively expand and contract, thereby allowing for effective adjustment of its inner diameter. This facilitates effective contact and adhesion of the conductive rubber layer, improving its usage and work efficiency. Furthermore, it effectively guides airflow, ensuring efficient ventilation during use and reducing ventilation efficiency.

[0004] This utility model provides the following technical solution: a printer charging roller that avoids deformation of the adhesive layer, including a main roller body, a tube body provided above and below the main roller body, and the bottom of the main roller body is connected to the top of the lower tube body by bolts. A docking plate is connected to the side of the tube body that is away from the main roller body, and a nut is provided above the main roller body.

[0005] As a preferred embodiment of this utility model, docking columns are respectively connected between the two docking plates near the left and right sides, and several evenly distributed air outlets are opened on the outer wall of the tube.

[0006] As a preferred embodiment of this utility model, a flow tube is connected through the docking plate, and the two flow tubes are arranged symmetrically at the top and bottom.

[0007] As a preferred embodiment of this utility model, a threaded rod is inserted inside the nut, the bottom end of the threaded rod is movably connected to the top of the main roller body through a bearing, and a rotating plate is sleeved on the top of the threaded rod.

[0008] As a preferred embodiment of this utility model, a plurality of evenly distributed extension plates are provided on the outer side of the main roller body, and rectangular blocks are respectively connected to the outside of the main roller body and the nut.

[0009] As a preferred embodiment of this utility model, an X-shaped connecting rod is hinged to the rectangular block, and the top end of the other end of the X-shaped connecting rod is hinged to the extension plate. A through groove is provided on the rectangular block near the bottom, and the bottom end of the other end of the X-shaped connecting rod is slidably connected in the through groove.

[0010] The beneficial effects of this utility model are: this technical solution enables it to expand and contract effectively, thereby enabling effective adjustment of its inner diameter, and enabling effective contact and adhesion of the conductive rubber layer on it, thus improving its usage efficiency and working efficiency, and enabling effective air guidance, thereby enabling effective ventilation during use and improving its ventilation efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 for Figure 1 Partial 3D view of components such as the central nut;

[0013] Figure 3 for Figure 1 Partial 3D view of components such as the expansion board;

[0014] Figure 4 for Figure 1 Partial 3D view of components such as the central tube body.

[0015] In the diagram: 1. Main roller body; 2. Air outlet; 3. Connecting plate; 4. Flow pipe; 5. Pipe body; 6. Through groove; 7. X-shaped connecting rod; 8. Nut; 9. Rotating plate; 10. Connecting column; 11. Threaded rod; 12. Rectangular block; 13. Extension plate. Detailed Implementation

[0016] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] Example 1

[0018] like Figures 1 to 4As shown, a printer charging roller that avoids deformation of the adhesive layer includes: a main roller body 1, a tube body 5 provided above and below the main roller body 1, and the bottom of the main roller body 1 is connected to the top of the lower tube body 5 by bolts, a docking plate 3 is connected to the side of the tube body 5 that is away from the main roller body 1, and a nut 8 is provided above the main roller body 1.

[0019] In this embodiment, docking posts 10 are connected to the two docking plates 3 near the left and right sides respectively, and several evenly distributed air outlets 2 are opened on the outer wall of the tube body 5. A flow pipe 4 is connected through the docking plate 3, and the two flow pipes 4 are arranged symmetrically at the top and bottom, so that they can be effectively expanded and contracted, thereby allowing their inner diameter to be effectively adjusted, so that the conductive rubber layer on them can be effectively contacted and adhered, improving their usage efficiency and working efficiency.

[0020] Example 2

[0021] like Figures 1 to 4 As shown, a threaded rod 11 is inserted inside the nut 8. The bottom end of the threaded rod 11 is movably connected to the top of the main roller body 1 through a bearing. A rotating plate 9 is sleeved on the top of the threaded rod 11. Several evenly distributed extension plates 13 are provided on the outside of the main roller body 1. Rectangular blocks 12 are respectively connected to the outside of the main roller body 1 and the nut 8.

[0022] Implementation plan: An X-shaped connecting rod 7 is hinged to the rectangular block 12. The top of the other end of the X-shaped connecting rod 7 is hinged to the extension plate 13. A through groove 6 is opened near the bottom of the rectangular block 12. The bottom of the other end of the X-shaped connecting rod 7 is slidably connected in the through groove 6, so that it can effectively guide the air, thereby enabling effective ventilation during use and improving its ventilation efficiency.

[0023] Working principle: In use, this technical solution is first installed using two connecting plates 3, allowing two flow pipes 4 to extend to the outside. Then, rotating the rotating plate 9 clockwise or counterclockwise causes the threaded rod 11 to move the nut 8 downward or upward, causing the rectangular block 12 to press the X-shaped connecting rod 7, which in turn causes several extension plates 13 to move away from or towards each other, allowing for effective expansion and contraction. This allows for effective adjustment of the inner diameter, ensuring effective contact and adhesion of the conductive rubber layer, thus improving its usage and working efficiency. The flow pipes 4 guide air into the pipe body 5 and out through the air outlet 2, enabling effective air guidance and thus providing effective ventilation during use, improving its ventilation efficiency.

[0024] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0025] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A printer charging roller that prevents deformation of the adhesive layer, characterized in that, Includes a main roller body (1), with tubes (5) provided above and below the main roller body (1), and the bottom of the main roller body (1) is bolted to the top of the lower tube (5). A butt plate (3) is connected to the side of the tube (5) that is away from the main roller body (1), and a nut (8) is provided above the main roller body (1).

2. The printer charging roller for preventing adhesive layer deformation according to claim 1, characterized in that, Two docking plates (3) are connected to docking columns (10) near the left and right sides respectively, and several evenly distributed air outlets (2) are opened on the outer wall of the tube body (5).

3. A printer charging roller for preventing adhesive layer deformation according to claim 2, characterized in that, The connecting plate (3) is connected through a flow pipe (4), and the two flow pipes (4) are arranged symmetrically at the top and bottom.

4. A printer charging roller for preventing adhesive layer deformation according to claim 3, characterized in that, A threaded rod (11) is inserted inside the nut (8). The bottom end of the threaded rod (11) is movably connected to the top of the main roller body (1) through a bearing, and a rotating plate (9) is sleeved on the top of the threaded rod (11).

5. A printer charging roller for preventing adhesive layer deformation according to claim 4, characterized in that, The main roller body (1) has several evenly distributed extension plates (13) on its outer side, and rectangular blocks (12) are connected to the outside of the main roller body (1) and the nut (8).

6. A printer charging roller for preventing adhesive layer deformation according to claim 5, characterized in that, An X-shaped connecting rod (7) is hinged to the rectangular block (12). The top of the other end of the X-shaped connecting rod (7) is hinged to the extension plate (13). A through groove (6) is opened near the bottom of the rectangular block (12). The bottom of the other end of the X-shaped connecting rod (7) is slidably connected in the through groove (6).

Images