Doctor blade mounting structure

Abstract

The utility model relates to a doctor blade mounting structure which comprises a doctor blade holder and a doctor blade arranged on the doctor blade holder, a first mounting part of the doctor blade holder can be quickly clamped with a corresponding bulge structure in a selenium drum assembly through a clamping groove opening in the inner side of a first mounting plate which is bent upwards, so that accurate positioning is realized; a mounting through hole in a second mounting plate of the second mounting part is matched with a screw, and fixation can be completed only through a small amount of fastening operation; compared with a traditional full-screw connection mode, the double-installation-part design of clamping groove pre-positioning and screw fastening has the advantages that the time for aligning and tightening screws in the installation process is greatly shortened, the installation time of a single doctor blade is shortened, and the production and assembly efficiency of the selenium drum of the laser printer is effectively improved.

Description

A powder discharge blade installation structure Technical Field

[0001] This utility model relates to the field of printer accessories technology, and in particular to a toner dispensing blade mounting structure. Background Technology

[0002] In the toner cartridge assembly of a laser printer, the main function of the toner ejector blade is to control the thickness of the toner layer on the magnetic roller surface, ensuring print quality. However, existing toner ejector blade mounting methods typically involve having mounting holes at both ends, and then fixing the blade to the toner cartridge assembly with screws through these holes. This installation method is cumbersome, inconvenient, and makes precise positioning difficult. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the problems existing in the prior art. To this end, the present invention proposes a powder discharge knife installation structure.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A powder dispensing blade mounting structure includes a powder dispensing blade holder and a powder dispensing blade disposed on the powder dispensing blade holder. The powder dispensing blade holder includes a blade holder plate and a support plate integrally formed by bending. The powder dispensing blade is disposed on the blade holder plate. A first mounting part is provided at the left end of the support plate, and a second mounting part is provided at the right end. The first mounting part includes an upwardly bent first mounting plate, and a slot is provided on the inner edge of the first mounting plate. The second mounting part includes an upwardly bent second mounting plate, and a mounting through hole is provided on the second mounting plate.

[0006] In some embodiments, the slot is a U-shaped structure.

[0007] In some embodiments, U-shaped grooves are provided at both the left and right ends of the tool holder plate.

[0008] In some embodiments, a left bending groove is provided on the left side of the powder dispensing knife holder, and a right bending groove is provided on the right side. The knife holder plate is formed between the left bending groove and the right bending groove. The first mounting plate is located on the left side of the left bending groove, and the second mounting plate is located on the right side of the right bending groove.

[0009] In some embodiments, the powder-discharging blade is made of stainless steel and has a thickness of 0.1 mm.

[0010] In some embodiments, the powder discharge blade holder is made of electro-galvanized steel sheet with a thickness of 1.6 mm.

[0011] In some embodiments, the powder dispensing blade holder and the powder dispensing blade are fixed together by welding.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the first mounting part of the toner blade holder can quickly engage with the corresponding protruding structure inside the toner cartridge assembly through the slot on the inner side of the upwardly bent first mounting plate, achieving precise positioning; the mounting through holes on the second mounting plate of the second mounting part, combined with screws, require only a few tightening operations to complete the fixation; this dual mounting part design of "slot pre-positioning + screw tightening" significantly reduces the time for alignment and screw tightening during installation compared with the traditional all-screw connection method, shortening the installation time of a single toner blade and effectively improving the production and assembly efficiency of laser printer toner cartridges. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 is a three-dimensional schematic diagram of the powder dispensing blade of this utility model;

[0015] Figure 2 is an enlarged schematic diagram of point A in Figure 1 of this utility model;

[0016] Figure 3 is an enlarged schematic diagram of section B in Figure 1 of this utility model. Detailed Implementation

[0017] The following detailed description provides various embodiments or examples for implementing this utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of this utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0018] As shown in Figures 1-3, a powder dispensing blade mounting structure includes a powder dispensing blade holder 1 and a powder dispensing blade 2 disposed on the powder dispensing blade holder 1. The powder dispensing blade holder 1 includes a blade holder plate 3 integrally formed by bending and a support plate 4. The powder dispensing blade 2 is disposed on the blade holder plate 3. A first mounting part is provided at the left end of the support plate 4, and a second mounting part is provided at the right end. The first mounting part includes an upwardly bent first mounting plate 5, and a slot 6 is provided on the inner edge of the first mounting plate 5. The second mounting part includes an upwardly bent second mounting plate 7, and a mounting through hole 8 is provided on the second mounting plate 7.

[0019] According to the above structure, the first mounting part of the toner blade holder 1 can quickly engage with the corresponding protruding structure inside the toner cartridge assembly through the slot 6 on the inner side of the upwardly bent first mounting plate 5, achieving precise positioning; the mounting through hole 8 on the second mounting plate 7 of the second mounting part, combined with screws, can be fixed with only a few tightening operations; this dual mounting part design of "slot pre-positioning + screw tightening" significantly reduces the time for alignment and screw tightening during installation compared with the traditional all-screw connection method, shortens the installation time of a single toner blade, and effectively improves the production and assembly efficiency of laser printer toner cartridges.

[0020] Furthermore, the slot 6 is a U-shaped structure; the opening width, depth and curvature of the U-shaped slot 6 are designed according to the size of the raised structure of the toner cartridge to ensure a tight fit between the two; during installation, the U-shaped slot 6 is aligned with the raised structure and inserted, so that the raised structure is embedded in the slot to achieve engagement; during disassembly, a special tool is used to apply force from the side to separate the slot 6 from the raised structure.

[0021] The U-shaped structure of the slot 6 allows for a better fit with the internal protruding structure of the toner cartridge assembly, creating a stable limiting effect during engagement and preventing the toner dispenser 1 from shifting during installation. At the same time, the U-shaped structure facilitates disassembly, allowing the dispenser to be separated with simple force during maintenance, further improving maintenance convenience.

[0022] In this utility model, U-shaped grooves 31 are provided at both the left and right ends of the tool holder plate 3.

[0023] In this utility model, a left bending groove 41 is provided on the left side of the powder dispensing knife holder 1, and a right bending groove 42 is provided on the right side. The knife holder plate 3 is formed between the left bending groove 41 and the right bending groove 42. The first mounting plate 5 is located on the left side of the left bending groove 41, and the second mounting plate 7 is located on the right side of the right bending groove 42.

[0024] When producing the powder cutter holder 1, a stamping or bending process is used to sequentially form a left bending groove 41 and a right bending groove 42 on an electro-galvanized steel plate according to the design dimensions, and then bend them upward to form the cutter holder plate 3; then the steel plates on the left side of the left bending groove 41 and the right side of the right bending groove 42 are bent upward to form the first mounting plate 5 and the second mounting plate 4; during installation, the position of the powder cutter holder is adjusted according to the reserved space inside the toner cartridge assembly to ensure that each component is installed accurately.

[0025] In this invention, the powder dispensing blade 2 is made of stainless steel with a thickness of 0.1mm. The 0.1mm thick stainless steel material of the powder dispensing blade has good wear resistance and corrosion resistance, and can adapt to the friction of toner particles and the complex working environment inside the toner cartridge assembly, thus extending the service life of the blade. The thinner thickness gives the blade better flexibility, allowing it to fit tightly against the inner wall of the toner compartment and improve the accuracy of toner scraping and output.

[0026] In this invention, the toner ejector 1 is made of electro-galvanized steel sheet with a thickness of 1.6mm. The toner ejector 1 is made of 1.6mm thick electro-galvanized steel sheet, which has both high strength and good rust resistance. It can withstand the vibration and external force during the operation of the printer, ensuring the long-term stable operation of the ejector. The appropriate thickness ensures that the ejector has the strength without increasing the weight and cost due to excessive thickness, and can also solve the problem of uncontrollable toner.

[0027] In this invention, the powder dispensing blade holder 1 and the powder dispensing blade 2 are fixed by welding. The powder dispensing blade holder 1 and the powder dispensing blade 2 are connected by welding to form a solid integrated structure, avoiding powder leakage caused by loose connecting parts. The welding method ensures a tight connection, which can guarantee the positional accuracy between the blade 2 and the blade holder plate 1, so that the blade remains stable during operation and ensures the consistency of toner output.

[0028] Based on the accompanying drawings and the foregoing display and description of the basic principles, main features, and advantages of this utility model, those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A powder dispensing blade mounting structure, comprising a powder dispensing blade holder (1) and a powder dispensing blade (2) disposed on the powder dispensing blade holder (1), characterized in that: The powder dispensing blade holder (1) includes a blade holder plate (3) and a support plate (4) integrally formed by bending. The powder dispensing blade (2) is disposed on the blade holder plate (3). A first mounting part is provided at the left end of the support plate (4), and a second mounting part is provided at the right end. The first mounting part includes an upwardly bent first mounting plate (5). A slot (6) is provided on the inner edge of the first mounting plate (5). The second mounting part includes an upwardly bent second mounting plate (7). An installation through hole (8) is provided on the second mounting plate (7).

2. The powder discharge blade installation structure according to claim 1, characterized in that: The slot (6) has a U-shaped structure.

3. The powder discharge blade installation structure according to claim 1, characterized in that: U-shaped grooves (31) are provided at both the left and right ends of the tool holder plate (3).

4. The powder discharge blade installation structure according to claim 1, characterized in that: A left bending slot (41) is provided on the left side of the powder dispensing knife holder (1), and a right bending slot (42) is provided on the right side. The knife holder plate (3) is formed between the left bending slot (41) and the right bending slot (42). The first mounting plate (5) is located on the left side of the left bending slot (41), and the second mounting plate (7) is located on the right side of the right bending slot (42).

5. The powder discharge blade installation structure according to claim 1, characterized in that: The powder-discharging blade (2) is made of stainless steel and has a thickness of 0.1 mm.

6. The powder discharge blade installation structure according to claim 1, characterized in that: The powder discharge blade holder (1) is made of electro-galvanized steel plate with a thickness of 1.6mm.

7. The powder discharge blade installation structure according to claim 1, characterized in that: The powder discharge blade holder (1) and the powder discharge blade (2) are fixed together by welding.

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