Filling type charging roller structure

Abstract

The utility model discloses a filling type charging roller structure which comprises a hollow conductive roller, a filling base body is arranged in the hollow conductive roller, and the filling base body is attached to the inner wall of the hollow conductive roller. According to the utility model, while the hollow conductive roller is adopted to replace a traditional iron rod, the filling matrix provides rigid guarantee for the hollow conductive roller, so that the hollow conductive roller is prevented from being deformed, and the problem that the hollow conductive roller is easy to bend and sink inwards in the use or production process is solved. And meanwhile, the weight of the whole charging roller can be increased due to the addition of the filling base body, so that automatic grabbing in the production process is facilitated. And the filling matrix is arranged in the hollow conductive roller, so that airflow can be prevented from flowing in the hollow conductive roller, and resonance is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of charging rollers, in particular to a filling type charging roller structure. Background Art

[0002] Prior art, such as the Chinese utility model patent document with publication number CN220154792U, discloses a hollow charging roller, including an aluminum roller shaft with a hollow interior, a conductive sponge sleeve being sleeved on the outer wall of the aluminum roller shaft, and a PU conductive sleeve being sleeved on the outer wall of the conductive sponge sleeve.

[0003] Prior art, such as the Chinese utility model patent document with publication number CN208172499U, discloses a knurled aluminum tube-type developing roller and charging roller for a printer / copier toner cartridge, comprising a hollow aluminum tube provided with a conductive synthetic rubber layer; one end of the hollow aluminum tube is provided with a left aluminum shaft head, and the other end is provided with a right aluminum shaft head.

[0004] In the prior art, a hollow aluminum shaft is used to replace the traditional iron rod to solve the problem that the traditional charging roller uses an iron rod that needs to be electroplated, which causes environmental pollution.

[0005] Based on the above, although the existing technology uses a hollow aluminum shaft to save the electroplating step, the hollow aluminum roller will cause the following problems in actual use:

[0006] 1: When the hollow aluminum roller is in use, when there is air circulation inside the hollow aluminum shaft, it will cause vibration between the tube walls. At this time, when the vibration frequency is close to the current frequency, resonance will occur.

[0007] 2: The hollow aluminum shaft has poor hardness and rigidity. It is easy to deform during use, resulting in poor contact between the charging roller and the OPC (imaging drum), affecting conductivity and causing irregular black blocks in printing.

[0008] 3: Because the hollow aluminum shaft is not hard enough, it is easy for the shaft to deform during production and become unusable.

[0009] 4: The hollow aluminum shaft cannot fall accurately into the material trough of the production equipment during the production process due to its insufficient weight, which is not conducive to automated grasping and affects production efficiency. Utility Model Content

[0010] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a filling type charging roller structure.

[0011] A filling type charging roller structure designed for this purpose includes a hollow conductive roller. A filling matrix is provided in the hollow conductive roller, and the filling matrix is in contact with the inner wall of the hollow conductive roller.

[0012] Preferably, the filling matrix is made of iron, plastic, glass or wood.

[0013] Preferably, the hollow conductive roller is a conductive metal roller or a conductive plastic rod.

[0014] Preferably, the hollow conductive roller is made of aluminum or copper.

[0015] Preferably, a conductive layer is provided on the outer wall of the hollow conductive roller.

[0016] Preferably, the conductive layer includes a conductive sponge sleeved on the outer wall of the hollow conductive roller, and a conductive sleeve is sleeved on the outer wall of the conductive sponge.

[0017] Preferably, the filling matrix has a columnar structure, and the filling matrix is inserted and assembled inside the hollow conductive roller.

[0018] Compared with the prior art, the utility model includes a hollow conductive roller, a filling matrix is arranged inside the hollow conductive roller, and the filling matrix is attached to the inner wall of the hollow conductive roller. When the utility model uses the hollow conductive roller to replace the traditional iron rod, the filling matrix provides rigid guarantee for the hollow conductive roller, avoids its deformation, and overcomes the problem of easy inward bending and depression during use or production. At the same time, the increase of the filling matrix can increase the weight of the whole charging roller, so as to facilitate automatic grasping during the production process. And by arranging the filling matrix inside the hollow conductive roller, the flow of air in the hollow conductive roller can be avoided, thereby avoiding the generation of resonance. Description of the Drawings

[0019] Figure 1 is a schematic cross-sectional structure diagram of the charging roller;

[0020] Figure 2 is a schematic plan structure diagram of the charging roller. Detailed Embodiments

[0021] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0022] See Figure 1 - Figure 2 , a structure of a filling type charging roller, including a hollow conductive roller 10, a filling matrix 30 is arranged inside the hollow conductive roller 10, and the filling matrix 30 is attached to the inner wall of the hollow conductive roller 10.

[0023] Based on the above embodiments, when the utility model uses the hollow conductive roller to replace the traditional iron rod, the filling matrix provides rigid guarantee for the hollow conductive roller, avoids its deformation, and overcomes the problem of easy inward bending and depression during use or production. At the same time, the increase of the filling matrix can increase the weight of the whole charging roller, so as to facilitate automatic grasping during the production process.

[0024] Meanwhile, in the present utility model, the filling matrix is arranged inside the hollow conductive roller, which can prevent air flow from flowing inside the hollow conductive roller, thereby avoiding the generation of resonance.

[0025] Furthermore, the filling matrix 30 is made of iron, plastic, glass or wood.

[0026] Specifically, the filling matrix 30 has a columnar structure and is inserted and assembled inside the hollow conductive roller 10. That is, after the production of the hollow conductive roller 10 and the filling matrix 30 is completed, the filling matrix 30 is inserted into the hollow conductive roller 10 manually or by machine.

[0027] Furthermore, the hollow conductive roller 10 is a conductive metal roller or a conductive plastic roller.

[0028] Specifically, the hollow conductive roller 10 is made of aluminum or copper.

[0029] Preferably, the hollow conductive roller 10 is made of aluminum. The hollow aluminum shaft has the advantages of good conductivity and low cost.

[0030] When using a conductive plastic roller, the conductive plastic roller is injection-molded with a conductive material.

[0031] See Figure 1 and Figure 2 , a conductive layer 20 is provided on the outer wall of the hollow conductive roller 10.

[0032] Furthermore, the conductive layer 20 includes a conductive sponge 210 sleeved on the outer wall of the hollow conductive roller 10, and a conductive sleeve 220 is sleeved on the outer wall of the conductive sponge 210.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present utility model. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features.

[0034] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A filling type charging roller structure, comprising a hollow conductive roller (10), characterized in that: A filling matrix (30) is arranged inside the hollow conductive roller (10), and the filling matrix (30) is in contact with the inner wall of the hollow conductive roller (10).

2. The filling type charging roller structure according to claim 1, wherein: The filling matrix (30) is made of iron, plastic, glass or wood.

3. A filling type charging roller structure according to claim 1, characterized in that: The hollow conductive roller (10) is a conductive metal roller or a conductive plastic roller.

4. A filling type charging roller structure according to claim 3, characterized in that: The hollow conductive roller (10) is made of aluminum or copper.

5. A filling type charging roller structure according to any one of claims 1 to 4, characterized in that: A conductive layer (20) is arranged on the outer wall of the hollow conductive roller (10).

6. The filling type charging roller structure according to claim 5, wherein: [[ID=⑤]]The conductive layer (20) includes a conductive sponge (210) sleeved on the outer wall of the hollow conductive roller (10), and a conductive sleeve (220) is sleeved on the outer wall of the conductive sponge (210).

7. A filling type charging roller structure according to claim 3, characterized in that: [[ID=⑥]]The conductive plastic roller is injection-molded with a conductive material.

8. A filling type charging roller structure according to any one of claims 1 to 4, characterized in that: [[ID=⑦]]The filling matrix (30) has a columnar structure, and the filling matrix (30) is inserted and assembled inside the hollow conductive roller (10).

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