High-strength doctor blade

Abstract

A high-strength doctor blade comprises a back plate, one side of the back plate is bent and extends in one direction to form a first bent part, gaps are reserved between the two ends of the first bent part and the outer end face of the back plate, and the other side of the back plate is bent and extends in the other direction to form a second bent part. The first bending part is additionally arranged on one side of the back plate, so that the overall strength of the plate is enhanced, deformation in the working process is prevented, the second bending part is additionally arranged on the other side of the back plate, the strength is enhanced, and the service life of the plate is prolonged. In addition, the gaps are formed in the two sides of the first bending part, so that the powder feeding amount and the powder discharging amount are increased, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of printing consumables, in particular to a high-strength powder dispensing knife. Background Art

[0002] Contact developing drums are used in laser printers. The laser beam emitted by the laser enters the acousto-optic deflection modulator through a reflector. At the same time, the binary graphic dot matrix information sent by the computer is sent from the interface to the font generator to form the binary pulse information of the required font. The signal generated by the synchronizer controls 9 high-frequency oscillators, and then is added to the acousto-optic modulator through a frequency synthesizer and a power amplifier to modulate the laser beam emitted by the reflector. The modulated light beam enters the multi-faceted rotating mirror, and then is focused by a wide-angle focusing lens and then shot to the light guide on the surface of the drum, so that the angular velocity scanning becomes a linear velocity scanning, completing the entire scanning process. The surface of the drum is first charged by the charging electrode to obtain a certain potential. After that, it is exposed to the laser beam carrying the image information, and an electrostatic latent image is formed on the surface of the drum. After being developed by the magnetic brush developer, the latent image is transformed into a visible toner image. When passing through the transfer area, the toner is transferred to ordinary paper under the action of the electric field of the transfer electrode. Finally, it is fixed by the preheating plate and high-temperature hot roller, that is, the text and image are fused on the paper. Before printing the image information, the cleaning roller removes the toner that has not been transferred, and the de-electrification lamp removes the residual charge on the drum. After thorough cleaning by the cleaning paper system, a new round of work cycle can be entered.

[0003] However, the current powder dispensing knives generally have the following disadvantages and are prone to deformation. Utility Model Content

[0004] In order to solve the above problems, the present technical solution provides a high-strength powder discharge knife.

[0005] To achieve the above purpose, the technical solution is as follows:

[0006] A high-strength powder discharge knife comprises a back plate, one side of the back plate is bent and extended in one direction to form a first bent portion, gaps are left between the two ends of the first bent portion and the outer end surface of the back plate, the other side of the back plate is bent and extended in another direction to form a second bent portion, the two ends of the second bent portion are flush with the outer end surface of the back plate.

[0007] In some embodiments, a tool holder with an L-shaped cross section is provided on one side of the back plate, and a third bending portion that is bent and extended toward the first bending portion is provided at the end of the tool holder.

[0008] In some embodiments, the back plate is provided with a plurality of welding points for connecting with the tool holder.

[0009] In some embodiments, the back plate is symmetrically provided with two mounting holes.

[0010] The beneficial effects of this application are:

[0011] The present application adds a first bending portion on one side of the back plate, the purpose of which is to enhance the overall strength of the plate to prevent deformation during the working process. Secondly, a second bending portion is added on the other side, which also serves to enhance the strength, so that both sides of the back plate have sufficient hardness to prevent deformation during work. In addition, gaps are provided on both sides of the first bending portion, the purpose of which is to increase the powder input and output and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0013] Figure 1 This is a schematic diagram of the structure of the embodiment of the utility model Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the structure of the embodiment of the utility model Figure 2 . DETAILED DESCRIPTION

[0015] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0016] Please refer to Figure 1-2 As shown, a high-strength powder discharge knife includes a back plate 1, one side of the back plate 1 is bent and extended in one direction to form a first bent portion 2, gaps 3 are left between the two ends of the first bent portion 2 and the outer end surface of the back plate 1, and the other side of the back plate 1 is bent and extended in another direction to form a second bent portion 4, the two ends of the second bent portion 4 are flush with the outer end surface of the back plate 1.

[0017] The present application adds a first bending portion on one side of the back plate, the purpose of which is to enhance the overall strength of the plate to prevent deformation during the working process. Secondly, a second bending portion is added on the other side, which also serves to enhance the strength, so that both sides of the back plate have sufficient hardness to prevent deformation during work. In addition, gaps are provided on both sides of the first bending portion, the purpose of which is to increase the powder input and output and improve work efficiency.

[0018] In this embodiment, a tool holder 5 with an L-shaped cross-section is provided on one side of the back plate 1, and a third bending portion 6 is provided at the end of the tool holder 5, which is bent and extended toward the first bending portion 2. The third bending portion is used to increase the amount of scraped powder and improve the hardness of the tool holder.

[0019] In this embodiment, the back plate 1 is provided with a plurality of welding points 7 for connecting with the tool holder 5 .

[0020] In this embodiment, the back plate 1 is symmetrically provided with two mounting holes 8 .

[0021] The above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application. Other principles and basic structures that are the same or similar to those of the present application are within the protection scope of the present application.

Claims

1. A high-strength powder knife, characterized in that: The invention comprises a back plate (1), one side of the back plate (1) is bent and extended in one direction to form a first bent portion (2), a gap (3) is left between the two ends of the first bent portion (2) and the outer end surface of the back plate (1), and the other side of the back plate (1) is bent and extended in another direction to form a second bent portion (4), the two ends of the second bent portion (4) are flush with the outer end surface of the back plate (1).

2. A high-strength powder discharge knife according to claim 1, characterized in that: A tool holder (5) having an L-shaped cross section is provided on one side of the back plate (1), and a third bending portion (6) is provided at the end of the tool holder (5) and is bent and extended in the direction of the first bending portion (2).

3. A high-strength powder discharge knife according to claim 2, characterized in that: The back plate (1) is provided with a plurality of welding points (7) for connecting with the tool holder (5).

4. A high-strength powder discharge knife according to claim 1, characterized in that: The back plate (1) is symmetrically provided with two mounting holes (8).

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