Cleaning scraper assembly

Abstract

The utility model discloses a cleaning scraper assembly which comprises a blade and a scraper rest, the scraper rest comprises a frame support and a frame back, the frame support is perpendicular to the frame back, the two ends of the frame back are bent towards the frame support to form installation ends, and installation holes are formed in the positions, close to the installation ends, of the frame back and the installation ends. A plurality of first threaded holes are formed in the frame support, and penetrating holes are formed in the positions, right opposite to the threaded holes, of the blades. The frame back is provided with insertion holes with the same number as the threaded holes; the cutter further comprises clamping frames with the same number as the inserting holes, the clamping frames are U-shaped, the upper ends of the clamping frames penetrate through the inserting holes and are located above the blades, second threaded holes are formed in the two sides of the clamping frames and right face the first threaded holes, and the clamping frames, the blades and the frame support are connected through screws. The cleaning scraper assembly has the advantages that the blade can be stably installed, effective supporting can be improved, and use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to printer technical field, in particular to a kind of cleaning doctor blade assemblies. BACKGROUND

[0002] In the printing process of printer, carbon powder image is transferred from photosensitive drum to recording paper, and carbon powder remains on the surface of photosensitive drum, so cleaning doctor blade assembly is needed to remove residual carbon powder.

[0003] The currently used cleaning doctor blade assembly includes holder and blade, the blade is bonded to the holder, and the blade contacts the photosensitive drum to scrape the residual carbon powder on the surface of the photosensitive drum. In the use process, the blade is stressed and easily separated from the holder, with poor stability and low service life. SUMMARY

[0004] In view of the above deficiencies of the prior art, the technical problem to be solved by the present patent application is to provide a cleaning doctor blade assembly that can securely install the blade and improve effective support for easy use.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A cleaning doctor blade assembly includes a blade and a holder, the holder includes a holder and a holder back, the holder and the holder back are arranged vertically, the holder back is bent towards the holder to form a mounting end, the holder back is close to the mounting end, and the mounting end is provided with a mounting hole;

[0007] The holder is provided with a plurality of first threaded holes, and the blade is provided with a through hole opposite the threaded hole; the holder back is provided with a plurality of insertion holes corresponding to the number of threaded holes;

[0008] It also includes a clamping holder with the same number of insertion holes, the clamping holder is U-shaped, the upper end of the clamping holder passes through the insertion hole and is located above the blade, the two sides of the clamping holder are provided with second threaded holes opposite the first threaded holes, and the clamping holder, the blade and the holder are connected by screws.

[0009] In this way, during installation, the cleaning doctor blade assembly is installed on the inner wall of the selenium drum waste powder bin through the holder back. During operation, the blade contacts the photosensitive drum to scrape the residual carbon powder on the surface of the photosensitive drum. The clamping holder is provided to clamp the blade and the holder, so that the installation of the blade is more stable. When the blade is stressed, the clamping holder and the holder are connected to prevent the blade from separating from the holder. During assembly, the blade is placed on the holder, the clamping holder passes through the insertion hole, the holder and the blade are located in the clamping holder, and the three are connected by screws for easy assembly.

[0010] Preferably, the shelf is provided with a plurality of supporting arms extending away from the back, and the upper surface of the supporting arms is flush with the upper surface of the shelf.

[0011] Preferably, the shelf and the supporting arms are provided with adhesive between the blade.

[0012] Preferably, the shelf and the back are integrally made.

[0013] Preferably, the thickness of the shelf and the blade is the same as the opening size of the clamping shelf.

[0014] In summary, the cleaning blade assembly has the advantages of stable installation of the blade and improved effective support, and is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the cleaning blade assembly.

[0016] Figure 2 It is Figure 1 a schematic view of another orientation.

[0017] Figure 3 It is Figure 1 an exploded view. DETAILED DESCRIPTION

[0018] The utility model will be further described in detail below in combination with the drawings. In the description of the utility model, it is understood that the orientation words such as "up, down" and "top, bottom" and the like indicated orientation or position relationship is usually based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, in the absence of the opposite statement, these orientation words do not indicate and imply the orientation of the indicated device or element must have or in the specific orientation construction and operation, therefore, it can not be understood as the restriction of the protection scope of the utility model;The orientation words "in, out" refer to the inside and outside relative to the contour of each component.

[0019] As Figures 1-3 shown, a cleaning blade assembly includes a blade 1 and a blade holder, the blade holder includes a shelf 2 and a back 3, the shelf is vertically arranged with the back, the two ends of the back are bent to the direction of the shelf to form a mounting end 4, the position close to the mounting end of the back and the mounting end are both provided with mounting holes;

[0020] The shelf is provided with a plurality of first threaded holes 5, and the blade is provided with a through hole 6 opposite the threaded hole;The back is provided with a plurality of insertion holes 7, and the number of the insertion holes is the same as that of the threaded holes.

[0021] Also include the same number of jack with the number of clamping frame 8, the clamping frame is U-shaped, the upper end of the clamping frame through the jack and located above the blade, the two sides of the clamping frame is provided with a second threaded hole 9 opposite the first threaded hole, the clamping frame, blade and frame through the screw 10 connection.

[0022] In this way, during installation, the cleaning blade assembly is installed on the inner wall of the selenium drum waste powder bin through the back of the frame, and during operation, the residual toner on the surface of the photosensitive drum is scraped off by the contact between the blade and the photosensitive drum. By setting the clamping frame, the blade and the frame holder are clamped, so that the installation of the blade is more stable, and when the blade is stressed, the blade and the frame holder are connected through the clamping frame and the frame holder, so as to avoid the separation of the blade and the frame holder. During assembly, the blade is placed on the frame holder, the clamping frame is inserted through the jack, the frame holder and the blade are located in the clamping frame, and the three are connected by screws, which is convenient for assembly.

[0023] During implementation, the frame holder extends in the direction away from the back of the frame and is provided with a plurality of supporting arms 11, and the upper surface of the supporting arm is flush with the upper surface of the frame holder. The setting of the supporting arm can support the blade, so that the blade is more stable, the deformation of the blade is reduced, the blade can better contact the photosensitive drum, and the waste powder can be better scraped off.

[0024] During implementation, the frame holder and the supporting arm are provided with adhesive between the blade. Improve the installation reliability of the blade.

[0025] During implementation, the frame holder and the back of the frame are integrally made. It is convenient to manufacture.

[0026] During implementation, the thickness size of the frame holder and the blade is the same as the opening size of the clamping frame. It is convenient to assemble and improve the integrity of the cleaning blade assembly.

[0027] Finally, it should be noted that those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and the statistical number thereof, the present application also intends to include these modifications and variations.

Claims

1. A cleaning doctor assembly comprising a blade (1) and a carrier, characterized in that, The holder comprises a holder back (3) and a holder support (2), the holder back is perpendicular to the holder support, both ends of the holder back are bent to form mounting ends (4) towards the holder support, mounting holes are formed in the holder back near the mounting ends and the mounting ends; The holder support is provided with a plurality of first threaded holes (5), the blade is provided with a through hole (6) opposite the threaded holes, the holder back is provided with a plurality of insertion holes (7) corresponding to the threaded holes; The holder further comprises a plurality of clamping holders (8) corresponding to the insertion holes, the clamping holders are U-shaped, the upper ends of the clamping holders pass through the insertion holes and are above the blade, the clamping holders are provided with second threaded holes (9) opposite the first threaded holes on both sides, and the clamping holders, the blade and the holder support are connected by screws.

2. A cleaning doctor assembly according to claim 1, wherein, The holder support is provided with a plurality of holder arms (10) extending away from the holder back, the upper surfaces of the holder arms are flush with the upper surface of the holder support.

3. A cleaning doctor assembly according to claim 2, wherein, The holder support and the holder arms are provided with adhesive between the holder support and the blade.

4. A cleaning doctor assembly according to claim 3, wherein, The holder support and the holder back are integrally made.

5. A cleaning doctor assembly according to claim 4, wherein, The thickness of the holder support and the blade is the same as the opening size of the clamping holder.

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