Filling solid charging roller structure

Abstract

The invention discloses a filled solid 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. The hollow conductive roller is adopted to replace a traditional iron rod, meanwhile, the filling base body provides rigid guarantee for the hollow conductive roller, deformation of the hollow conductive roller is avoided, and the problem that the hollow conductive roller is prone to being bent and sunken 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 invention relates to the technical field of charging rollers, and in particular to a filled solid charging roller structure. Background Art

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

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

[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, thus causing environmental pollution.

[0005] Based on the above, although the prior art 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 rotating, 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. Summary of the invention

[0010] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a filled solid charging roller structure.

[0011] A filled solid charging roller structure designed for this purpose comprises a hollow conductive roller, wherein a filling matrix is ​​arranged inside 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 roller.

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

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

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

[0017] Preferably, the filling matrix is ​​in a columnar structure, and the filling matrix is ​​plugged and assembled inside the hollow conductive roller.

[0018] Compared with the prior art, the present invention includes a hollow conductive roller, wherein a filling matrix is ​​arranged inside the hollow conductive roller, and the filling matrix is ​​in contact with the inner wall of the hollow conductive roller. While the present invention uses a hollow conductive roller to replace the traditional iron rod, the filling matrix provides rigidity protection for the hollow conductive roller to prevent it from deforming so as to overcome the problem of being easily bent and sunken inward during use or production. At the same time, the addition of the filling matrix can increase the weight of the entire charging roller, so as to facilitate automatic grasping during the production process. And the filling matrix is ​​arranged inside the hollow conductive roller, which can prevent the airflow from flowing inside the hollow conductive roller, thereby avoiding the generation of resonance. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a schematic diagram of the planar structure of the charging roller. DETAILED DESCRIPTION

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

[0022] See also Figure 1-Figure 2 A filled solid charging roller structure includes a hollow conductive roller 10, wherein 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.

[0023] Based on the above embodiments, the present invention uses a hollow conductive roller to replace the traditional iron rod, and the filling matrix provides rigidity for the hollow conductive roller to prevent it from deforming to overcome the problem of being easily bent and sunken inward during use or production. At the same time, the addition of the filling matrix can increase the weight of the entire charging roller, so as to facilitate automatic grasping during the production process.

[0024] At the same time, the present invention adopts a filling matrix arranged inside the hollow conductive roller, which can prevent airflow 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 is a columnar structure, and the filling matrix 30 is plugged and assembled inside the hollow conductive roller 10. That is, after the hollow conductive roller 10 and the filling matrix 30 are produced, 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] The hollow conductive roller 10 is preferably made of aluminum. The hollow aluminum shaft has the advantages of good conductivity and low cost.

[0030] When the conductive plastic stick is used, the conductive plastic stick is injection molded with conductive material.

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

[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 invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating the orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention 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, and therefore cannot be understood as limiting the present invention. 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 number of technical features indicated.

[0034] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A filled solid 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. A filled solid charging roller structure according to claim 1, characterized in that: The filling matrix (30) is made of iron, plastic, glass or wood.

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

5. A filled solid charging roller structure according to any one of claims 1 to 4, characterized in that: The outer wall of the hollow conductive roller (10) is provided with a conductive layer (20).

6. A filled solid charging roller structure according to claim 5, characterized in that: The conductive layer (20) comprises a conductive sponge (210) sleeved on the outer wall of the hollow conductive roller (10), and the outer wall of the conductive sponge (210) is sleeved with a conductive sleeve (220).

7. A filled solid charging roller structure according to claim 3, characterized in that: The conductive plastic stick is injection-molded using conductive material.

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

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