CN219143281U - Split type conveniently-detached drum core structure - Google Patents

Abstract

The utility model provides a split type conveniently-detached drum core structure which comprises a developing roller and a developing box, wherein two ends of development are respectively provided with a first connecting end and a second connecting end, the developing roller is connected with the developing box in a matched mode through the first connecting end and the second connecting end, the outer surface of the developing roller is covered with a coating layer, the first connecting end comprises a rotating wheel and a conductive ring, the rotating wheel is connected with a shell of the developing box, the developing box is connected with the rotating wheel in a rotating mode and drives the developing roller to rotate, the conductive ring is connected with the conductive layer, and when the developing roller is replaced, the developing roller can be taken out only by disassembling the developing box.

Description

Split type conveniently-detached drum core structure

Technical Field

The utility model relates to the field of printing consumables, in particular to a split type conveniently-detached drum core structure.

Background

With the development of technology, most of printers in the market are laser printers, the printing principle of the laser printers is that a developing agent is provided by a photosensitive drum of a developing box to enable an electrostatic latent image on the photosensitive drum to be developed, a developing roller of the developing box receives driving force of the laser printer to rotate and work through a driving gear set arranged at the end part of the developing box, but due to the defects of the prior art, the developing box becomes main consumable materials of the laser printers, the developing roller is used as main component of the developing box, in most cases, the loss of the developing roller is the main reason for replacing the developing box, in the service of replacing consumable materials of the printer in the prior art, the whole developing box is often replaced, but the developing box body, the photosensitive drum and other parts are also arranged on the developing box, and the whole cost of the developing box is not high, but the waste caused in year-to-year replacement is not small.

In the prior utility model patent (CN 202021588951.2) and the scheme in the selenium drum, the selenium drum core structure has good conductive performance, but cannot be disassembled after being installed, and a great amount of waste is caused in daily consumable replacement.

Meanwhile, in the process of producing the developing box, a large amount of heavy metal can be used, and the pollution caused by the heavy metal can also have a great influence on the environment, so if the split type conveniently-detached drum core structure can be designed and applied to the developing roller, the cost of replacing consumable materials can be further reduced only by replacing the developing roller when the consumable materials are replaced, and the environment is protected.

Disclosure of Invention

The utility model aims to provide a split type conveniently-detached drum core structure so as to achieve the aim of only replacing a developing roller when the consumable of a printer is replaced daily.

In order to achieve the purpose, the utility model provides a body-detachable drum core structure which comprises a developing roller and a developing box, wherein a developing roller body is a cylinder, a conductive layer is arranged inside the developing roller, one end of a rotating wheel of a developing roller belt wheel is a first connecting end, the other end of the rotating wheel of the developing roller belt wheel is a second connecting end, the developing roller is connected with the developing box in a matched manner through the first connecting end and the second connecting end, the outer surface of the developing roller is provided with a coating layer which is fully covered, the first connecting end comprises the rotating wheel and a conductive ring, the rotating wheel is connected with a developing box shell in a rotating manner, the developing box is connected with the conductive layer in a rotating manner, the first connecting end comprises a rotating wheel with a shaft, the rotating wheel is connected with the developing box shell in a rotating manner, the developing box is meshed with the rotating wheel shaft through a gear, and the developing roller is driven to rotate by the rotating wheel shaft, and when the developing roller is replaced, the developing roller can be taken out only by disassembling the matched connection.

The design can be seen from the above, the development roller is easy to disassemble and assemble, and can be taken out only by connecting and disconnecting the matching parts, so that the normal rotation of the development roller is not influenced when the disassembly is facilitated, and only the development roller in the development box is required to be replaced when the consumable of the printer is replaced, thereby greatly reducing the cost of replacing the consumable of the printer and reducing the waste caused in the replacement of the consumable of the printer.

Further, the second link includes connecting axle and conducting strip, and the connecting axle passes through the pin cooperation and is connected with the developing box, and the connecting axle passes through the gyro wheel to be fixed, and the conducting strip passes through the connecting axle to be fixed, and the conducting strip is located the gyro wheel, and the conducting strip other end links to each other with the conducting layer simultaneously, and similarly, in first link, be provided with a conductive coil and link to each other with the conducting layer for the developing roller is electrically conductive, through this design, not only does benefit to and takes out the developing roller from the second link, can charge for the developing roller simultaneously, in order to better the quality of guaranteeing printing. Further, the developing roller coating layer covers the entire main body surface of the developing roller, so that the printing range can be ensured.

Further, the conductive sheet is positioned inside the developing roller and can be used for connecting the conducting wire layer of the developing roller with the external conductive ring so as to achieve the purpose of charging the developing roller.

In order to more clearly illustrate the above-mentioned features of the present utility model and its intended objects, the present utility model will be further described with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a front view of a developing roller in the present utility model;

FIG. 2 is a schematic view of a first connection end according to the present utility model;

FIG. 3 is a schematic view of a second connector according to the present utility model;

fig. 4 is a perspective view of a developing cartridge in the present utility model;

fig. 5 is a schematic diagram of a second connection terminal linked with a developing cartridge according to the present utility model.

Detailed Description

By way of example and the accompanying drawings, the utility model is described below in terms of a split easy-to-disassemble drum core structure.

As shown in fig. 1 and 4, a split type drum core structure of the present utility model includes a developing roller 1 and a developing cartridge 2 in this example, the developing cartridge is internally provided with a conductive layer, a left end is a first connection end 3, a right end is a second connection end 4, the developing roller 1 is connected with the developing cartridge 2 through the first connection end 3 and the second connection end 4, and an outer surface of the developing roller 1 is covered with a coating layer.

As shown in fig. 1 and 2, in this example, the first connection end 3 is formed as a rotating wheel 31 with a shaft, the rotating wheel 31 is matched with the main body of the developing roller 1 in size, a conductive ring 32 matched with the radius of the developing roller 1 is arranged between the rotating wheel 31 and the developing roller 1, the conductive ring 32 is electrically connected with a printer to supply power to the developing roller 1, the shaft of the rotating wheel 31 is meshed with the developing box 2 through a gear to drive the developing roller 1 to rotate, and the hub of the rotating wheel 31 is matched with the developing box 2, is installed in a preset hole site and is connected with an external printer.

As shown in fig. 1, 3 and 5, in this example, the second connection end 4 is composed of a connection shaft 41, a conductive sheet 42 and a roller 43, the radius of the conductive sheet 42 is matched with that of the developing roller 1, the conductive sheet 42 is installed on the roller 43, a corresponding hole is formed in the middle of the conductive sheet 42 and is used for installing the connection shaft 41, the connection shaft penetrates through the central hole of the roller, meanwhile, the connection shaft 41 and the developing box 2 are matched through pins, and the connection shaft 41 and the developing box 2 are installed on corresponding hole positions of the developing box 2 and are electrically conducted into the developing roller 1 through the connection shaft.

In this example, the developing cartridge 2 is electrically linked to the external printer, and the developing cartridge 2 can be charged through the lead sheet of the developing roller 1.

In this example, the outer surface coating layer of the developing roller 1 covers the entire outer surface of the developing roller 1, ensuring a coverage area at the time of printing.

When the developing roller 1 needs to be replaced, the shell of the developing box 2 at the first connecting end 3 is only required to be unscrewed, the pin at the second connecting position 4 is loosened, the developing roller 1 can be taken out, a new developing roller 1 is placed in the developing box 2, the shell of the developing box 2 at the first connecting end 3 is installed, the purpose of replacing the developing roller can be achieved, and the cost of consumed materials of a printer can be effectively reduced.

The above description is only of the best mode for carrying out the utility model, and is not intended to limit the utility model, but it is intended that modifications and substitutions made by those skilled in the art without departing from the spirit and scope of the utility model.

Claims (5)

1. The utility model provides a components of a whole that can function independently just tear open drum core structure, includes developing roller (1) and developing cartridge (2), developing roller (1) inside is provided with the conducting layer, a serial communication port, developing roller (1) one end is first link (3), and the other end is second link (4), developing roller (1) pass through first link (3) with second link (4) with developing cartridge (2) cooperation is connected, developing roller (1) surface covers has the coating, first link (3) include runner (31) and conducting ring (32), runner (31) with developing cartridge (2) shell links to each other, developing cartridge (2) with runner (31) normal running fit is connected and is driven developing roller (1) rotate, conducting ring (32) with the conducting layer links to each other, when changing developing roller (1), only need with developing cartridge (2) part is taken out developing roller (1).

2. The split type conveniently-detached drum core structure according to claim 1, wherein the second connecting end (4) comprises a connecting shaft (41), a conductive sheet (42) and a roller (43), the conductive sheet (42) is connected with the conductive layer, the connecting shaft (41) is connected with the developing box (2) through a pin, the conductive sheet (42) is located on the connecting shaft (41), the roller (43) is fixedly connected with the connecting shaft (41) through a hole site, and the roller (43) is located on the conductive sheet (42).

3. A split detachable drum core structure according to claim 1, wherein the developing roller (1) coating layer covers the surface of the developing roller (1) main body.

4. A split detachable drum core structure according to claim 2, wherein said developing cartridge (2) is engaged with said rotary wheel (31) by a gear.

5. A split and detachable drum core structure according to claim 2, wherein said conductive sheet (42) is located in said developing roller (1).

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