Powder box cleaning scraper

Abstract

The utility model discloses a powder box cleaning scraper which comprises a scraper rest and two scraper bodies. The tool rest comprises a vertical plate, two tool body installation structures are symmetrically arranged on one side of the vertical plate, the two ends of the vertical plate are bent to form installation ends, the installation ends are located on the side, back to the tool body installation structures, of the vertical plate, and installation holes are formed in the installation ends. The cutter body mounting structure comprises a mounting plate and a limiting plate which are fixedly connected with the vertical plate, the mounting plate and the limiting plate are both perpendicular to the vertical plate, the limiting plate is located on the outer side of the mounting plate, an inserting groove allowing the cutter body to be inserted is formed between the limiting plate and the mounting plate, a cutting edge is arranged at the end, away from the inserting groove, of the cutter body, and at least three penetrating holes are formed in the mounting plate in a penetrating mode. A through hole is formed in the cutter body right opposite to the penetrating hole in a penetrating mode, a bolt penetrates through the through hole in the cutter body and the penetrating hole in the mounting plate and is connected with a nut, and the nut abuts against the mounting plate. The powder box cleaning scraper has the advantages that a double-piece structure is adopted, two blades are arranged, and the structural stability is high.

Description

Technical Field

[0001] This utility model relates to the field of laser printer technology, and in particular to a toner cartridge cleaning scraper. Background Technology

[0002] As a core component of modern office equipment, the imaging quality and stability of laser printers directly depend on the performance of their key functional components. During the imaging process of a laser printer, the toner adsorbed on the surface of the photosensitive drum after exposure and development needs to be transferred to the paper through a transfer process. The cleaning effect of residual toner directly affects subsequent print quality and the lifespan of the equipment. Among these components, the toner cartridge cleaning blade, as a core component of the contact cleaning device, has its structural design and operational efficiency as key technical factors determining the level of toner residue control.

[0003] The currently used toner cartridge cleaning scraper design is relatively simple, consisting of a single blade glued to a blade holder. This blade scrapes away residual toner from the surface of the photosensitive drum. However, during use, the scraping effect of a single blade is poor, resulting in toner residue on the photosensitive drum surface. As the number of printed pages increases, the charging roller surface becomes increasingly contaminated with toner, weakening the charging effect and exacerbating uneven print density. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this patent application is how to provide a powder box cleaning scraper with a double-blade structure, two blades, and high structural stability.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A powder box cleaning scraper includes a blade holder and two blades;

[0007] The tool holder includes an upright plate, on one side of which two tool mounting structures are symmetrically arranged. Both ends of the upright plate are bent to form mounting ends, which are located on the side of the upright plate opposite to the tool mounting structures. Mounting holes are provided on the mounting ends.

[0008] The blade mounting structure includes a mounting plate and a limiting plate fixedly connected to the upright plate. Both the mounting plate and the limiting plate are perpendicular to the upright plate. The limiting plate is located outside the mounting plate, and a slot is formed between the limiting plate and the mounting plate to allow the blade to be inserted. The end of the blade away from the slot is provided with a cutting edge. The mounting plate has at least three through holes. The blade has a through hole directly opposite the through holes. A bolt passes through the through holes on the blade and the through holes on the mounting plate and is connected to a nut. The nut abuts against the mounting plate.

[0009] This dual-blade setup allows for more effective scraping of residual toner from the photosensitive drum surface. During installation, the two blades are mounted on the blade holder via a blade mounting structure. Bolts pass through mounting holes on the mounting ends and connect to the toner cartridge, completing the assembly. When mounting the blades on the holder, the end furthest from the cutting edge is inserted into the slot, with the through hole on the blade aligned with the through hole on the mounting plate. Bolts pass through both the through hole on the blade and the through hole on the mounting plate and connect to the nut, which abuts against the mounting plate, completing the blade installation. A limiting plate applies downward pressure to the blades, ensuring a more stable installation.

[0010] The mounting plate has several spaced stiffeners fixedly installed on the side away from the limiting plate, and the through holes are located between two adjacent stiffeners.

[0011] The blade body has adhesive between its two sides and the mounting plate and the limiting plate, respectively.

[0012] The mounting plate and the blade body are provided with several auxiliary clamping structures. The auxiliary clamping structures include a support block fixedly mounted on the mounting plate, a pressure block fixedly mounted on the upper end of the support block, the pressure block being located at the end of the support block away from the limiting plate, a pressure groove being formed between the pressure block and the mounting plate, a clearance hole being provided through the blade body to allow the support block to pass through, and the lower surface of the support block being in contact with the blade body.

[0013] The end of the pressure block away from the limiting plate is rounded.

[0014] In summary, this powder box cleaning scraper has the advantages of a dual-blade structure with two blades and high structural stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a powder box cleaning scraper according to the present invention.

[0016] Figure 2 for Figure 1 A schematic diagram of the structure after the blade body has been removed. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that directional terms such as "upper," "lower," "top," and "bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0018] like Figure 1-2 As shown, a powder box cleaning scraper includes a blade holder and two blades 1;

[0019] The tool holder includes an upright plate 2, on one side of which two tool mounting structures are symmetrically arranged. The two ends of the upright plate are bent to form mounting ends 3. The mounting ends are located on the side of the upright plate opposite to the tool mounting structures, and mounting holes are provided on the mounting ends.

[0020] The blade mounting structure includes a mounting plate 4 and a limiting plate 5 fixedly connected to the upright plate. Both the mounting plate and the limiting plate are perpendicular to the upright plate. The limiting plate is located outside the mounting plate, and a slot 6 is formed between the limiting plate and the mounting plate to allow the blade to be inserted. The blade is provided with a cutting edge at the end of the blade away from the slot. The mounting plate has at least three through holes 7. The blade has a through hole directly opposite the through holes. A bolt 8 passes through the through hole on the blade and the through hole on the mounting plate and is connected to a nut 9. The nut abuts against the mounting plate.

[0021] This dual-blade setup allows for more effective scraping of residual toner from the photosensitive drum surface. During installation, the two blades are mounted on the blade holder via a blade mounting structure. Bolts pass through mounting holes on the mounting ends and connect to the toner cartridge, completing the assembly. When mounting the blades on the holder, the end furthest from the cutting edge is inserted into the slot, with the through hole on the blade aligned with the through hole on the mounting plate. Bolts pass through both the through hole on the blade and the through hole on the mounting plate and connect to the nut, which abuts against the mounting plate, completing the blade installation. A limiting plate applies downward pressure to the blades, ensuring a more stable installation.

[0022] In practice, a number of spaced-apart stiffeners 10 are fixedly installed on the side of the mounting plate away from the limiting plate, and the through holes are located between two adjacent stiffeners. Through the stiffeners, the mounting plate supports the mounting plate, and the mounting plate mounts the blade body, allowing the blade body to better bear force and making the overall structure more stable.

[0023] During implementation, adhesive is applied between both sides of the blade and the mounting plate and the limiting plate, respectively, to improve the installation stability of the blade.

[0024] In practice, several auxiliary clamping structures are provided between the mounting plate and the blade body; the auxiliary clamping structures include a support block 11 fixedly mounted on the mounting plate, a pressure block 12 fixedly mounted on the upper end of the support block, the pressure block being located at the end of the support block away from the limiting plate, a pressure groove being formed between the pressure block and the mounting plate, a clearance hole 13 being provided through the blade body to allow the support block to pass through, and the lower surface of the support block being in contact with the blade body.

[0025] During the installation of the blade, after the pressure block passes through the clearance hole, the blade is placed on the mounting plate and then pushed to move. When the blade enters the slot, it also moves to the bottom of the pressure block and the blade fits against the lower surface of the pressure block. Through the setting of the pressure block and the limiting plate, the blade is better limited, making the installation of the blade more stable.

[0026] During implementation, the end of the pressure block furthest from the limiting plate is rounded to facilitate the quick passage of the pressure block through the clearance hole.

[0027] Finally, it should be noted that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A powder box cleaning scraper, characterized in that, Includes a tool holder and two tool bodies (1); The tool holder includes an upright plate (2), two tool mounting structures are symmetrically arranged on one side of the upright plate, and the two ends of the upright plate are bent to form mounting ends (3). The mounting ends are located on the side of the upright plate opposite to the tool mounting structures, and mounting holes are provided on the mounting ends. The blade mounting structure includes a mounting plate (4) and a limiting plate (5) fixedly connected to the upright plate. Both the mounting plate and the limiting plate are set perpendicular to the upright plate. The limiting plate is located outside the mounting plate, and a slot (6) is formed between the limiting plate and the mounting plate to allow the blade to be inserted. The blade is provided with a cutting edge at the end away from the slot. The mounting plate is provided with at least three through holes (7). The blade is provided with a through hole directly opposite the through holes. A bolt (8) passes through the through hole on the blade and the through hole on the mounting plate and is connected to a nut (9). The nut abuts against the mounting plate.

2. The powder box cleaning scraper according to claim 1, characterized in that, A number of spaced stiffeners (10) are fixedly installed on the side of the mounting plate away from the limiting plate, and the perforations are located between two adjacent stiffeners.

3. A powder box cleaning scraper according to claim 2, characterized in that, Adhesive is provided between the two sides of the blade body and the mounting plate and the limiting plate, respectively.

4. A powder box cleaning scraper according to claim 1, characterized in that, Several auxiliary clamping structures are also provided between the mounting plate and the blade body; the auxiliary clamping structures include a support block (11) fixedly mounted on the mounting plate, a pressure block (12) fixedly mounted on the upper end of the support block, the pressure block is located at the end of the support block away from the limiting plate, a pressure groove is formed between the pressure block and the mounting plate, a clearance hole (13) is provided through the blade body to allow the support block to pass through, and the lower surface of the support block is in contact with the blade body.

5. A powder box cleaning scraper according to claim 4, characterized in that, The end of the pressure block away from the limiting plate is rounded.

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