Developing roller structure

Abstract

The utility model discloses a developing roller structure which comprises an aluminum pipe matched with a drum core for powder feeding, and a rough powder feeding surface is arranged on the surface of the aluminum pipe. Compared with the prior art, the aluminum pipe is used as the developing roller, the production process is simple, and the problems of pollution to a drum core, insufficient blackness and bottom ash are avoided. Meanwhile, the roughness of the surface of the aluminum pipe can be increased through the rough powder feeding face, so that carbon powder is attached to the surface, the conveying amount of the carbon powder is guaranteed, the printing quality is guaranteed, and the problem of bottom ash or insufficient blackness is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of selenium drum developing roller, especially relates to a developing roller structure. BACKGROUND

[0002] The existing developing roller is rubber roller, and the rubber roller is composed of iron shaft and rubber body injected on the surface of the iron shaft. Because the production process is complex and the formula requirement is strict, the rubber roller is prone to poor printing quality caused by different proportions, and problems such as bottom ash or insufficient blackness and pollution of the drum core.

[0003] At the same time, because the iron shaft is poor in electroplating or the outer rubber body is damaged at both ends during cutting, rust is caused, the rubber body is burst due to rust of the iron shaft, and the printing quality is affected, and further improvement is needed. SUMMARY

[0004] The utility model aims at at least solving one of the technical problems in the prior art. Therefore, the utility model provides a developing roller structure made of aluminum pipe.

[0005] A developing roller structure designed for this purpose comprises an aluminum pipe for powder feeding in cooperation with a drum core, and a rough powder feeding surface is arranged on the surface of the aluminum pipe.

[0006] Preferably, the rough powder feeding surface comprises a plurality of powder feeding grooves arranged on the surface of the aluminum pipe.

[0007] Preferably, the rough powder feeding surface comprises a powder feeding coating arranged on the surface of the aluminum pipe, and the powder feeding coating comprises powder feeding protrusions uniformly distributed on the surface of the aluminum pipe.

[0008] Preferably, the aluminum pipe is provided with a transmission gear at one end, and the transmission gear is rotatably connected with a powder bin.

[0009] Compared with the prior art, the utility model uses aluminum pipe as the developing roller, the production process is simple, pollution of the drum core is eliminated, and problems such as insufficient blackness and bottom ash are avoided.

[0010] At the same time, the rough powder feeding surface arranged in the utility model can increase the roughness of the surface of the aluminum pipe, so that the carbon powder is adhered to the surface, the carbon powder conveying amount is ensured, the printing quality is ensured, and problems such as bottom ash and insufficient blackness are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a schematic view of the three-dimensional structure of the developing roller;

[0012] Fig. 2 It is a schematic view of the three-dimensional structure of the selenium drum. DETAILED DESCRIPTION

[0013] The utility model is further described below with reference to the drawings and embodiments.

[0014] Referring to Figs. 1-2 A developing roller structure, including aluminum pipe 10 that cooperates with drum core 40 to send powder, rough powder sending surface 110 is arranged on the surface of the aluminum pipe 10.In the utility model, the aluminum pipe is used as developing roller, its production process is simple, and the problems of pollution drum core, insufficient blackness and appearing bottom ash are avoided.

[0015] Meanwhile, the rough powder sending surface arranged in the utility model can increase the roughness of the surface of the aluminum pipe, so that the carbon powder is adhered to the surface for conveying, so as to ensure the conveying amount of the carbon powder, thereby ensuring the printing quality and avoiding the problems of appearing bottom ash or insufficient blackness.

[0016] In the utility model, the first embodiment of rough powder sending surface 110 includes a plurality of powder sending grooves arranged on the surface of aluminum pipe 10.The powder sending groove is a pit groove recessed inwardly relative to the surface of aluminum pipe 10, and the powder sending groove can increase the roughness of the surface of aluminum pipe 10 and increase the friction coefficient with the carbon powder, so as to drive the carbon powder in the powder bin to be outputted, thereby realizing printing.The powder sending groove can ensure the powder sending amount, so as to avoid the problem of insufficient powder sending amount of the smooth aluminum pipe 10.

[0017] In the utility model, the second embodiment of rough powder sending surface 110 includes a powder sending coating arranged on the surface of aluminum pipe 10, and the powder sending coating includes powder sending protruding parts uniformly distributed on the surface of aluminum pipe 10.The powder sending protruding parts are used to drive the carbon powder to move along with aluminum pipe 10 and realize the output of the carbon powder, and the powder sending coating is used to avoid the problem that the surface of the aluminum pipe is too smooth and affects the conveying of the carbon powder.

[0018] In the utility model, one end of aluminum pipe 10 is provided with transmission gear 50, and transmission gear 50 is rotatably connected with powder bin 20.Transmission gear 50 is used to cooperate with the transmission system of the selenium drum for transmission.

[0019] Referring to Fig. 2 In use, the developing roller made of aluminum pipe 10 is installed on powder bin 20, powder bin 20 is connected with waste powder bin 30, and drum core 40 is rotatably arranged on waste powder bin 30.

[0020] In the description of the utility model, need understanding is, the term "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, structure and operation, therefore can not be understood as the restriction of the utility model, the term "first", "second" is only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0021] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is limited by the appended claims and their equivalents.

Claims

1. A developer roller structure characterized by: The application relates to an aluminum pipe (10) for cooperating with a drum core (40) to send powder, wherein a rough powder sending surface (110) is arranged on the surface of the aluminum pipe (10); The rough powder sending surface (110) comprises a plurality of powder sending grooves or powder sending coatings arranged on the surface of the aluminum pipe (10), and the powder sending coating comprises powder sending protrusions uniformly distributed on the surface of the aluminum pipe (10); One end of the aluminum pipe (10) is provided with a transmission gear (50), and the transmission gear (50) is rotationally connected with a powder bin (20).

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