CN216286162U

CN216286162U - Developing roller and toner cartridge

Info

Publication number: CN216286162U
Application number: CN202121240515.0U
Authority: CN
Inventors: 陈海滨; 仲鹏举
Original assignee: Zhuhai Liansheng Electronic Technology Co ltd
Current assignee: Zhuhai Liansheng Electronic Technology Co ltd
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2022-04-12
Anticipated expiration: 2031-06-03

Abstract

The utility model provides a developing roller and a toner cartridge, aiming at solving the problem of inconvenient recovery of the developing roller in the field of printers. According to the developing roller, the glue containing groove is formed in the outer wall of the sleeve, the elastic layer can be conveniently removed along the glue containing groove, and the developing roller is convenient to recycle.

Description

Developing roller and toner cartridge

Technical Field

The utility model relates to a printer, in particular to a developing roller and a toner cartridge.

Background

The developing roller is an important component of the toner cartridge of the printer, a shaft core is arranged in the developing roller, toner and iron powder are contained in a powder bin in the toner cartridge, and the toner and the iron powder are stirred and rubbed by a stirrer in the powder bin, so that the toner is negatively charged, and the iron powder is positively charged, and the toner is adsorbed on the iron powder, and the iron powder is attracted by the shaft core or a sleeve, so that the iron powder is adsorbed on the developing roller with the toner; the developing roller is provided with a powder discharging scraper which scrapes off redundant toner on the developing roller on one hand and rubs the toner on the other hand to positively charge the toner on the developing roller; a photosensitive drum is arranged on one side of the developing roller, the surface of the photosensitive drum is made of a photoconductive material and is in a neutral and uncharged state under the condition of no visible light, and the scanned position on the surface of the photosensitive drum is negatively charged after laser scanning, so that toner on the developing roller is attracted down and adsorbed to the scanned position on the surface of the photosensitive drum when the photosensitive drum rotates to the vicinity of the developing roller; after the printing paper is processed by the printer, the surface of the printing paper carries electric charges with the same polarity as that of the surface of the selenium drum but much stronger, then the printing paper passes through the photosensitive drum with the toner, the toner on the surface of the photosensitive drum is attracted onto the printing paper, and an image is formed on the surface of the printing paper; before the printing paper is sent out of the printer, the toner is melted by heating at a high temperature and solidified on the surface of the paper during cooling.

The shaft core of the existing developing roller is sleeved with the sleeve, the elastic layer is arranged on the surface of the sleeve, the sleeve can rotate to continuously transport the powdered ink, the elastic layer has excellent compression permanent deformation resistance, and can be immediately restored after being extruded by the powder discharging scraper, and the whole shape is not easy to deform. In actual processing, the elastic layer is generally adhered to the sleeve by applying glue to the entire surface of the sleeve. After the developing roller is used for a long time, the elastic layer on the surface of the developing roller is abraded due to the action of the powder discharging scraper, and the sleeve on the inner layer can be generally used continuously. When retrieving old developer roll, need detach the elastic layer that sleeve surface has worn and torn, nevertheless because the elastic layer glues on the sleeve, damage the sleeve easily when scraping off, and cause the sleeve thickness inequality easily, finally can influence the printing effect, recycle's effect is unsatisfactory.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the developing roller, the elastic layer is easy to remove, and the recycling of the developing roller is convenient.

The utility model also provides a toner cartridge with the developing roller.

According to the developing roller of the embodiment of the first aspect of the utility model, the developing roller comprises the shaft core, the sleeve and the elastic layer, the outer wall of the sleeve is provided with the glue containing groove, the glue containing groove spirally extends along the axial direction of the sleeve, the shaft core is arranged in the sleeve, and the elastic layer is arranged on the outer wall of the sleeve.

According to the developing roller of the embodiment of the utility model, at least the following technical effects are achieved: the sleeve outer wall is provided with and receives the gluey groove, follows and receives the gluey groove and can conveniently get rid of the elastic layer, the recycling of the developer roll of being convenient for.

According to some embodiments of the utility model, the glue receiving groove is provided with three or four glue receiving grooves.

According to some embodiments of the utility model, the glue channel is semi-circular or preferably arcuate.

According to some embodiments of the utility model, the depth of the nanocolloid groove is 0.2mm to 0.4 mm.

According to some embodiments of the utility model, one end of the sleeve is provided with a glue inlet hole, one end of the glue inlet hole is communicated with the glue receiving groove, and the other end of the glue inlet hole is communicated with the inner cavity of the sleeve.

According to some embodiments of the utility model, the other end of the sleeve is provided with a glue outlet, one end of the glue outlet is communicated with the glue receiving groove, and the other end of the glue outlet is communicated with the inner cavity of the sleeve.

According to some embodiments of the utility model, the sleeve is made of aluminum.

According to some embodiments of the utility model, the resilient layer is made of rubber.

According to the second aspect embodiment of the utility model, the cartridge comprises the developing roller.

According to the selenium drum provided by the embodiment of the utility model, at least the following technical effects are achieved: the developing roller is convenient for recycling of the printer.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of the overall structure of a sleeve according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view and a partially enlarged view of a sleeve and an elastic layer according to an embodiment of the present invention;

FIG. 3 is an enlarged view of the sleeve and the elastic layer A shown in FIG. 2;

FIG. 4 is a schematic cross-sectional view of a developer roller according to an embodiment of the present invention.

Reference numerals:

a shaft core 100;

the glue dispensing device comprises a sleeve 200, a glue receiving groove 210, a glue inlet hole 220 and a glue outlet hole 230;

an elastic layer 300.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the positional or orientational descriptions, such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "pointed", "inner", "outer", "axial", "radial", "circumferential", etc., are given with reference to the positional or orientational relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, the sidewall means a left sidewall and/or a right sidewall.

In the description of the present invention, "a plurality" means two or more, "more than", "less than", "more than", and the like are understood as excluding the present number, and "more than", "less than", "in", and the like are understood as including the present number. If the description of "first" and "second" is used for the purpose of distinguishing technical features, the description is not intended to indicate or imply relative importance or to implicitly indicate the number of the indicated technical features or to implicitly indicate the precedence of the indicated technical features.

In the description of the present invention, it should be understood that "a is disposed on B" and "a is disposed on B" merely express the connection relationship between a and B, and do not represent that a is above B.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. "bolted" and "screwed" are equally interchangeable. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in conjunction with specific situations.

Referring to fig. 1 to 4, the developing roller according to the embodiment of the present invention includes a shaft core 100, a sleeve 200, and an elastic layer 300, wherein an outer wall of the sleeve 200 is provided with a glue receiving groove 210, the shaft core 100 is disposed in the sleeve 200, and the elastic layer 300 is disposed on an outer wall of the sleeve 200.

The shaft core 100 can be a magnetic core, which is composed of a permanent magnet, is generally fixed and is used for adsorbing iron powder and toner, the sleeve 200 can rotate and is used for transporting the toner, and the elastic layer 300 is arranged to prevent the developing roller from being pressed and deformed by a toner discharging scraper in a long-term user; the shaft core 100 may also be a metal core, such as an iron core, connected to the sleeve 200, and the elastic layer 300 is an electric conductor made of an electric conductive material, such as an electric conductive rubber, and by applying electric current to the shaft core 100 and the elastic layer 300 to generate a potential difference, the developing roller rotates integrally, and the iron powder and the toner are adsorbed and transported.

The outer wall of the sleeve 200 is provided with a glue receiving groove 210, in general, glue with adhesive force is contained in the glue receiving groove 210, the glue can adhere the elastic layer 300 to the outer wall of the sleeve 200, and when the developing roller is recovered, because only the area of the glue receiving groove 210 on the sleeve 200 is provided with the glue, the elastic layer 300 can be removed from the area, and the elastic layer 300 can be removed from the sleeve 200 more easily. Under the special circumstances, have the packing colloid that does not have the adhesion in the holding tank to sleeve 200 is the mold core, and elastic layer 300 adheres to sleeve 200 outer wall through injection moulding's mode, and fills the packing colloid that does not have the adhesion in the holding tank earlier, when retrieving the developer roll, shovels the packing colloid along the holding tank, just can find a better impetus for the work of getting rid of elastic layer 300, and gets rid of the work and be littleer to sleeve 200's damage.

Referring to fig. 1-4, in some embodiments of the utility model, the nanoslit 210 extends helically along the axial direction of the sleeve 200.

The glue receiving groove 210 spirally extends along the axial direction of the sleeve 200 on the outer wall of the sleeve 200, so that the glue can be ensured to fully cover the outer wall of the sleeve 200, and the elastic layer 300 can be firmly bonded on the sleeve 200. Moreover, the spiral structure is convenient for filling glue: when the sleeve 200 is erected (the axial direction of the sleeve 200 is along the vertical direction), the glue can spirally descend from top to bottom along the glue receiving groove 210 to fill the glue receiving groove 210.

Referring to fig. 1 to 4, in some embodiments of the present invention, the nano-gel groove 210 is provided with three or four.

Receive gluey groove 210 and be provided with three or four, can guarantee that glue fully covers the outer wall of sleeve 200, elastic layer 300 can bond firmly on sleeve 200, and it is less to the outer wall destruction of sleeve 200 simultaneously, and the structural strength decline of sleeve 200 is less to be convenient for later stage elastic layer 300 demolish work, the impetus is more, demolish easier, thorough.

Referring to fig. 1-4, in some embodiments of the utility model, the nanoslit 210 is semi-circular or preferably arcuate.

Referring to the definition of "bow" of Baidu encyclopedia, a circle is divided into two parts by a chord which is not the center of the circle, the part with larger area is called as good bow, and the other part is called as bad bow. When glue receiving groove 210 sets up to semi-circular, glue receiving groove 210 is convenient for process, and receive and do not have edges and corners in glue receiving groove 210, and glue of being convenient for fully fills in glue receiving groove 210, does not leave the space. When the glue receiving groove 210 is in a shape of a perfect circle, the opening of the glue receiving groove 210 is small, and the glue in the glue receiving groove 210 has a relatively large volume, so that the glue at the opening has a great attraction force, i.e. the glue can be better remained in the glue receiving groove 210 due to the action of the surface tension of the glue and cannot easily flow to the surface of the sleeve 200, and the sleeve 200 is erected in cooperation with the filling method of the glue, so that the glue can be fully filled in the whole glue receiving groove 210, then the elastic layer 300 is covered on the sleeve 200, the elastic layer 300 is contacted with the surface of the glue at the opening, the tension action of the glue is destroyed, the glue can fully infiltrate and contact the elastic layer 300, and the elastic layer 300 is firmly bonded.

Referring to fig. 1 to 4, in some embodiments of the present invention, the depth of the nano-gel groove 210 is 0.2mm to 0.4 mm.

The depth of the glue receiving groove 210 is 0.2 mm-0.4 mm, so that the glue receiving groove 210 has enough space to contain more glue, and the elastic layer 300 is firmly bonded on the sleeve 200.

Referring to fig. 1 to 4, in some embodiments of the present invention, one end of the sleeve 200 is provided with a glue inlet hole 220, one end of the glue inlet hole 220 is communicated with the glue receiving groove 210, and the other end of the glue inlet hole 220 is communicated with the inner cavity of the sleeve 200.

The sleeve 200 is a cylindrical structure (hollow shaft structure), and the inner cavity of the sleeve 200 is the cylinder. A glue inlet hole 220 is arranged, so that the glue supply assembly is convenient to position; when supplying glue to the accommodating cavity, the outlet pipe fitting of the glue supply assembly can be inserted into the glue inlet hole 220 from the inner wall of the sleeve 200, and the glue can flow into the glue receiving groove 210 along the glue inlet hole 220; the diameter of the glue inlet hole 220 is substantially the same as the outer diameter of the outlet pipe, and the outlet end of the glue supply assembly can be fixed to the sleeve 200 without the aid of additional tools, thereby facilitating the glue supply operation. The glue inlet hole 220 is generally located at the upper end of the sleeve 200 when the sleeve 200 is vertically disposed.

Referring to fig. 1 to 4, in some embodiments of the present invention, the other end of the sleeve 200 is provided with a glue outlet 230, one end of the glue outlet 230 is communicated with the glue receiving groove 210, and the other end of the glue outlet 230 is communicated with the inner cavity of the sleeve 200.

The glue outlet 230 is generally arranged below the elastic layer 300, after the elastic layer 300 is covered, a suction tube can be inserted into the glue outlet 230, due to the isolation effect of the elastic layer 300, the opening of the glue receiving groove 210 is almost closed, and the glue in the glue receiving groove 210 below the elastic layer 300 can be sucked by adding suction force into the glue outlet 230, so that the glue flows integrally and fills the glue receiving groove 210 fully.

Referring to fig. 1-4, in some embodiments of the utility model, the sleeve 200 is made of aluminum.

The sleeve 200 is made of aluminum, so that the price is low, the corrosion resistance is good, and the sleeve has good electric conduction and heat conduction performance.

Referring to fig. 1-4, in some embodiments of the utility model, the resilient layer 300 is made of rubber.

The rubber is mature in manufacturing process and convenient to apply to the developing roller, and it is understood that the rubber is generally conductive rubber, a conductive agent is mixed in the rubber raw material, so that the conductive rubber has certain conductive performance and can meet the functional requirements of the developing roller.

Referring to fig. 1 to 4, the toner cartridge according to an embodiment of the present invention includes the developing roller described above.

The toner cartridge comprises a toner bin, a stirrer, a developing roller, a toner discharging scraper, a photosensitive drum, a waste toner scraper, a charging roller and the like, and the toner cartridge adopts the developing roller, so that the recovery and the utilization of the printer are facilitated.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A developing roller, characterized by comprising:

a shaft core;

the outer wall of the sleeve is provided with a glue receiving groove, the glue receiving groove spirally extends along the axial direction of the sleeve, and the shaft core is arranged in the sleeve;

and the elastic layer is arranged on the outer wall of the sleeve.

2. The developer roller according to claim 1, wherein the glue receiving groove is provided with three or four.

3. The developer roller of claim 1, wherein the gutter is semi-circular or preferably arcuate.

4. The developer roller according to claim 1, wherein the depth of the sodium colloid receiving groove is 0.2mm to 0.4 mm.

5. The developing roller as claimed in claim 1, wherein one end of the sleeve is provided with a glue inlet hole, one end of the glue inlet hole is communicated with the glue receiving groove, and the other end of the glue inlet hole is communicated with the inner cavity of the sleeve.

6. The developer roller according to claim 1, wherein the other end of the sleeve is provided with a glue outlet, one end of the glue outlet is communicated with the glue receiving groove, and the other end of the glue outlet is communicated with the inner cavity of the sleeve.

7. The developer roller according to claim 1, wherein the sleeve is made of aluminum.

8. The developer roller according to claim 1, wherein the elastic layer is made of rubber.

9. A cartridge, characterized by comprising the developing roller according to any one of claims 1 to 8.