Toner cartridge with novel CF258 series doctor blade structure

Abstract

The utility model provides a toner cartridge with a novel CF258 series doctor blade structure, which comprises a toner bin, the outlet end of the toner bin is provided with a doctor blade, the doctor blade consists of a knife rest and a blade arranged on the knife rest, the knife rest is arranged on positioning bosses at two ends of the outlet of the toner bin, and the blade is arranged on the positioning bosses. The end face, close to one side of the powder bin, of the tool rest is attached to the powder leakage prevention pasting cotton, notch parts are arranged at the two ends of the blade, right-angle powder leakage prevention cotton blocks are arranged at the two ends, close to one side of the blade, of the powder leakage prevention pasting cotton, and the right-angle powder leakage prevention cotton blocks are arranged at the two ends, close to the other side of the blade, of the powder leakage prevention pasting cotton. And the notch part avoids the right-angle powder leakage prevention cotton block. The utility model relates to the technical field of toner cartridges.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon powder cartridges, in particular to a carbon powder cartridge with a novel CF258 series powder discharger structure. Background Art

[0002] With the rapid development of office automation equipment, devices such as printers and copiers are playing an increasingly important role in daily life and work. One of the core components of these devices is the toner cartridge, whose main function is to control the supply of toner (or toner) to ensure the clarity and uniformity of images or text. The toner blade, as a key component in the toner cartridge, controls the thickness of toner on the magnetic roller during the development process to ensure the quality of the final print or copy.

[0003] In existing powder knife designs, the blades of the powder knife are usually straight in design to provide uniform toner control across the entire width of the developing roller. However, this design also has some problems in practical applications: for example, the toner used in the CF258 series toner cartridges is low-melting-point toner, and the two ends of the magnetic roller are not the developing area. When the right-angled blades at both ends of the powder knife contact the two ends of the magnetic roller, the high temperature generated by friction will cause the toner to clump, thereby affecting the developing effect.

[0004] In addition, long-term high-temperature friction will cause the right-angled blades at both ends of the powder discharge knife to deform in the direction opposite to the movement of the developing roller. This deformation will cause the blade to stick to the powder-absorbing cotton at both ends of the powder bin, resulting in powder leakage during use because the blade is too far away from the magnetic roller. These problems not only reduce the working efficiency of the equipment, but also increase the user's maintenance costs.

[0005] Therefore, it is imperative to propose a toner cartridge with a new CF258 series powder discharge knife structure. Utility Model Content

[0006] In response to the above-mentioned defects of the existing technology, the utility model provides a carbon powder cartridge with a new CF258 series powder discharge knife structure, aiming to solve the problem of carbon powder agglomeration caused by high temperature friction and powder leakage caused by blade deformation at the right-angled blades at both ends of the powder discharge knife in the existing technology.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a carbon powder box with a new CF258 series powder knife structure, including a powder hopper, a powder knife is provided at the outlet end of the powder hopper, and the powder knife consists of a knife holder and a blade arranged on the knife holder, and the knife holder is installed on the positioning bosses at both ends of the powder hopper outlet, and anti-leakage powder adhesive cotton is arranged between the two positioning bosses, and the end face of the knife holder close to the powder hopper side is fitted with the anti-leakage powder adhesive cotton, and the two ends of the blade are provided with a cut-out portion, and the two ends of the anti-leakage powder adhesive cotton close to the blade side are provided with anti-right-angle powder leakage cotton blocks, and the cut-out portion avoids the anti-right-angle powder leakage cotton block.

[0008] Based on the above, the beneficial effect of a toner cartridge with a new CF258 series powder knife structure is to solve the problem of toner agglomeration caused by high-temperature friction at the right-angled blades at both ends of the powder knife and powder leakage caused by blade deformation in the prior art; it is mainly reflected in: the utility model provides a notch portion at both ends of the blade and installs anti-right-angle powder leakage cotton blocks at the corresponding positions, thereby effectively avoiding direct contact between the right-angled blade and the two ends of the magnetic roller, thereby reducing the toner agglomeration caused by high-temperature friction and improving printing quality and stability; the design of the notch portion makes it difficult for the powder knife to deform after long-term use, maintains an appropriate distance between the two ends of the powder knife and the two ends of the magnetic roller, avoids the blade from sticking to the anti-right-angle powder leakage cotton block due to deformation, and the thickness of the anti-right-angle powder leakage cotton block is greater than the powder-absorbing cotton in the prior art, and is in direct contact with the end heads at both ends of the magnetic roller, thereby avoiding powder leakage.

[0009] Furthermore, the blade is made of polyurethane material and is fusion-welded to the blade holder.

[0010] Based on the above, the beneficial effect of the polyurethane material is that the blade has excellent wear resistance and elasticity, which helps to maintain a stable carbon powder control effect for a long time.

[0011] Furthermore, a magnetic roller is provided on one side of the powder discharge knife, and a developing part and end parts located on both sides of the developing part are provided on the magnetic roller. The blade is provided with a powder control part and the cutting parts located on both sides of the powder control part. The powder control part is adapted on the developing part, and the cutting part is avoided from the end parts.

[0012] Based on the above, the beneficial effect of the developing section is to ensure the uniform distribution of toner on the magnetic roller; the beneficial effect of the powder control section is to accurately control the amount of toner transferred to the developing section to ensure the clarity and consistency of the image; the beneficial effect of the cutting section is to reduce the direct contact between the blade and the non-developing area of ​​the magnetic roller, preventing toner from agglomerating at high temperatures.

[0013] Furthermore, a fastener for fixing the tool holder is provided on the positioning boss to ensure that the tool holder is firmly installed at the outlet end of the powder bin.

[0014] Based on the above, the beneficial effect of the fastener is to ensure that the tool holder is firmly installed at the powder bin outlet, avoiding unstable carbon powder control caused by looseness.

[0015] Furthermore, the anti-right-angle powder leakage cotton block is fitted with the end portion, and the anti-right-angle powder leakage cotton block is made of high-density cotton material to prevent powder leakage during use due to the gap generated by the cutout avoiding the end portion.

[0016] Based on the above, the beneficial effect of the high-density cotton material is that it fits tightly to the end portion of the magnetic roller, effectively preventing toner leakage.

[0017] Furthermore, a gear side cover and a conductive side cover are provided at both ends of the powder bin, and the two positioning bosses are respectively integrally formed on the gear side cover and the conductive side cover.

[0018] Based on the above, the beneficial effects of the gear side cover and the conductive side cover are that the powder discharge knife can be installed through their respective positioning bosses, while also ensuring the relative positions of the two.

[0019] In order to more clearly illustrate the above features of the present invention and the objectives to be achieved, the present invention will be further described below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 : This is a schematic diagram of the installation of the powder knife of the utility model;

[0021] Figure 2 : It is a cross-sectional schematic diagram of the cooperation between the powder discharge knife and the magnetic roller of the utility model;

[0022] Figure 3 : It is a cross-sectional schematic diagram of the cooperation between the right-angle anti-powder leakage cotton block and the magnetic roller of the utility model;

[0023] Figure 4 : It is a schematic diagram of the magnetic roller of the present utility model.

[0024] Explanation of the accompanying numbers: 100-powder bin, 200-powder discharge knife, 300-magnetic roller, 301-developing part, 302-end head, 400-gear side cover, 500-conductive side cover, 1-knife holder, 2-blade, 21-incision part, 22-powder control part, 3-positioning boss, 4-anti-leakage powder adhesive cotton, 5-anti-right-angle powder leakage cotton block, 6-fastener. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 4As shown, a carbon powder cartridge with a novel CF258 series powder knife structure includes a powder bin 100, and a powder knife 200 is provided at the outlet end of the powder bin 100. The powder knife 200 consists of a knife holder 1 and a blade 2 arranged on the knife holder 1. The knife holder 1 is installed on the positioning bosses 3 at both ends of the outlet of the powder bin 100, and an anti-leakage powder adhesive cotton 4 is provided between the two positioning bosses 3. The end face of the knife holder 1 close to the powder bin 100 is in contact with the anti-leakage powder adhesive cotton 4, and the two ends of the blade 2 are provided with a cutout portion 21. The two ends of the anti-leakage powder adhesive cotton 4 outside the side close to the blade 2 are provided with anti-right-angle powder leakage cotton blocks 5, and the cutout portion 21 avoids the anti-right-angle powder leakage cotton block 5.

[0026] The blade 2 is made of polyurethane material and is fusion-welded to the blade holder 1 .

[0027] A magnetic roller 300 is provided on one side of the powder discharge knife 200, and a developing part 301 and end parts 302 located on both sides of the developing part 301 are provided on the magnetic roller 300. The blade 2 is provided with a powder control part 22 and the cutting parts 21 located on both sides of the powder control part 22. The powder control part 22 is adapted to the developing part 301, and the cutting part 21 avoids the end part 302.

[0028] The positioning boss 3 is provided with a fastener 6 for fixing the tool holder 1 to ensure that the tool holder 1 is firmly installed at the outlet end of the powder bin 100 .

[0029] The anti-right-angle powder leakage cotton block 5 is fitted with the end portion 302 and is made of high-density cotton material to prevent powder leakage during use due to the gap created by the cutout portion 21 avoiding the end portion 302 .

[0030] A gear side cover 400 and a conductive side cover 500 are provided at both ends of the powder bin 100 , and the two positioning bosses 3 are integrally formed on the gear side cover 400 and the conductive side cover 500 , respectively.

[0031] In summary, the specific implementation methods of the present invention are as follows:

[0032] The blade holder 1 is mounted on the positioning bosses 3 at both ends of the powder bin 100 outlet. The gear side cover 400 and the conductive side cover 500 are respectively formed integrally with their respective positioning bosses 3. The powder knife 200 is mounted on the two positioning bosses 3 through a fastener 6. It is particularly noted that the fastener 6 is a screw structure in the prior art. The powder knife 200 is screwed to the two positioning bosses to ensure that the blade holder 1 is tightly fitted with the anti-leakage powder pasting cotton 4. The blade 2 is provided with a notch 21 at both ends. When the anti-leakage powder pasting cotton 4 is close to the blade 2, the blade 2 is pressed against the powder pasting cotton 4. Anti-right-angle powder leakage cotton blocks 5 are pasted on the two ends outside the side near the blade 2, so that the incision portion 21 avoids the anti-right-angle powder leakage cotton blocks 5, and the magnetic roller 300 is installed on one side of the powder discharge knife 200 to ensure that the powder control portion 22 of the blade 2 is adapted to the developing portion 301 of the magnetic roller 300, and the incision portion 21 avoids the end portion 302, so that the two ends of the powder discharge knife 200 will not generate high-temperature friction with the end portions 302 at both ends of the magnetic roller 300, and the anti-right-angle powder leakage cotton blocks 5 are in contact with the end portion 302 of the magnetic roller 300 to prevent powder leakage.

[0033] The above description is only the optimal solution embodiment of the present invention and is not intended to limit the present invention. Various modifications or replacements of the present invention made by those skilled in the art without departing from the essence and protection scope of the present invention should also be within the protection scope of the present invention.

Claims

1. A toner cartridge with a novel CF258 series powder discharger structure, comprising a powder bin (100), characterized in that: The powder bin (100) is provided with a powder discharge knife (200) at the outlet end thereof. The powder discharge knife (200) is composed of a knife holder (1) and a blade (2) arranged on the knife holder (1). The knife holder (1) is mounted on positioning bosses (3) at both ends of the powder bin (100) outlet. Powder leakage prevention cotton (4) is arranged between the two positioning bosses (3). The end face of the knife holder (1) close to the powder bin (100) is in contact with the powder leakage prevention cotton (4). Notches (21) are provided at both ends of the blade (2). Anti-right-angle powder leakage cotton blocks (5) are provided at both ends of the powder leakage prevention cotton (4) close to the blade (2). The notches (21) are avoided by the anti-right-angle powder leakage cotton blocks (5).

2. A toner cartridge with a novel CF258 series powder discharge blade structure according to claim 1, characterized in that: The blade (2) is made of polyurethane material and is fusion-welded to the blade holder (1).

3. A toner cartridge with a novel CF258 series powder discharge blade structure according to claim 1, characterized in that: A magnetic roller (300) is provided on one side of the powder discharge knife (200), and a developing portion (301) and end portions (302) located on both sides of the developing portion (301) are provided on the magnetic roller (300). The blade (2) is provided with a powder control portion (22) and the cutout portions (21) located on both sides of the powder control portion (22). The powder control portion (22) is adapted to be mounted on the developing portion (301), and the cutout portion (21) is avoided by the end portion (302).

4. A toner cartridge with a novel CF258 series powder discharge blade structure according to claim 1, characterized in that: A fastener (6) for fixing the tool holder (1) is provided on the positioning boss (3) to ensure that the tool holder (1) is securely mounted at the outlet end of the powder bin (100).

5. The toner cartridge with the novel CF258 series powder discharge blade structure according to claim 3, characterized in that: The right-angle powder leakage prevention cotton block (5) is fitted with the end portion (302), and the right-angle powder leakage prevention cotton block (5) is made of high-density cotton material to prevent powder leakage during use due to the gap created by the cutout portion (21) avoiding the end portion (302).

6. A toner cartridge with a novel CF258 series powder discharge blade structure according to claim 1, characterized in that: A gear side cover (400) and a conductive side cover (500) are provided at both ends of the powder bin (100), and the two positioning bosses (3) are integrally formed on the gear side cover (400) and the conductive side cover (500), respectively.

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