High-strength doctor blade

Abstract

The utility model discloses a high-strength doctor blade which comprises a blade body and a blade rest used for installing the blade body. The cutter body is integrally formed and comprises a mounting part and a powder scraping part, the powder scraping part is bent relative to the mounting part so that an included angle can be formed between the powder scraping part and the mounting part, and a blade is arranged at the end, away from the mounting part, of the powder scraping part; the tool rest comprises a lower support and an upper support, the upper end of the lower support is bent to form a bracket used for bearing the mounting portion of the tool body, the upper support is arranged above the mounting portion of the tool body, upper penetrating holes are formed in the two ends of the upper support, lower penetrating holes are formed in the bracket and right opposite to the upper penetrating holes, and the upper penetrating holes and the lower penetrating holes are located on the two sides of the tool body. The bolt penetrates through the upper penetrating hole and the lower penetrating hole and is connected with the nut. The nut abuts against the lower support. The two ends of the lower support are bent to form installation ends, and installation holes are formed in the installation ends and the two ends of the bracket. The high-strength powder discharging cutter has the advantages of being stable in installation, long in service life and convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing supplies technical field especially relates to a high strength powder outlet knife. BACKGROUND

[0002] The laser printer is transported to the printing paper by the rotation of the magnetic roller, the powder outlet knife, the photosensitive drum and the charging roller, in order to control the surface of the magnetic roller to have a layer of uniform carbon powder and the electric quantity, need to install a powder outlet knife that cooperates, the powder outlet knife scrapes the excess toner on the magnetic roller, makes it even.

[0003] The powder outlet knife of the laser printer currently used is composed of a knife holder and a blade installed on the knife holder, the blade is thin and sheet-shaped, and is prone to deformation in the use process, which affects the uniformity of the powder thickness and further affects the printing quality, and the blade is prone to separation from the knife holder due to long-term stress, which affects the normal use of the printer. SUMMARY

[0004] In view of the above technical problems of the prior art, the technical problem to be solved by the patent application is how to provide a high-strength powder outlet knife that is stable in installation, long in service life and convenient to use.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A high-strength powder outlet knife, comprising a knife body and a knife holder for installing the knife body;

[0007] The knife body is integrally formed and comprises an installation part and a powder scraping part, the powder scraping part is bent relative to the installation part to form an included angle between the powder scraping part and the installation part, and the powder scraping part is provided with a blade at one end away from the installation part; the knife holder comprises a lower support and an upper support, the upper end of the lower support is bent to form a bracket for supporting the installation part of the knife body, the upper support is arranged above the installation part of the knife body, the upper support is provided with an upper through hole at both ends, the bracket is provided with a lower through hole opposite the upper through hole, the upper through hole and the lower through hole are located on both sides of the knife body, a bolt passes through the upper through hole and the lower through hole and is connected with a nut, and the nut abuts against the lower support; the both ends of the lower support are bent to form mounting ends, and the both ends of the mounting ends and the bracket are provided with mounting holes.

[0008] In this way, the knife holder is installed on the powder box body, and the knife body is installed on the knife holder. Specifically, during assembly, the installation part of the knife body is placed on the bracket, the upper support is placed on the installation part of the knife body, the bolt passes through the upper through hole and the lower through hole and is connected with the nut, the nut abuts against the lower support, the upper support and the bracket are used to press the installation part of the knife body, the installation of the knife body is completed, and the maintenance is facilitated. The both ends of the bracket and the both ends of the mounting ends are fixedly installed on the powder box body by the bolt, and the connection with the powder box body is completed.

[0009] The scraping part of the cutter body is bent relative to the mounting part of the cutter body, so that an included angle is formed between the scraping part and the mounting part, the included angle can be 45 degrees, the cleaning effect can be better ensured, the strength of the scraping part is enhanced, and the scraping effect of the cutting edge on the divided materials is better ensured. Meanwhile, in the scraping process, the scraping part of the cutter body is subjected to a downward force, and the bent structure of the cutter body is arranged, so that the cutter body can better bear stress, and the service life is prolonged.

[0010] The end of the upper support away from the cutting edge is bent downward to form a baffle, and the mounting part of the cutter body abuts against the baffle.

[0011] The two sides of the mounting part of the cutter body are provided with adhesive between the bracket and the upper support.

[0012] One side of the lower support is fixedly provided with a supporting block, the supporting block is hollow, and the upper end of the supporting block is attached to the mounting part of the cutter body.

[0013] The supporting block is fixedly provided with a plurality of supporting blocks arranged at intervals on the side away from the lower support, the supporting blocks and the supporting block surround a triangular structure, and the upper surface of the supporting block is attached to the scraping part of the cutter body.

[0014] The upper support is fixedly provided with two limiting blocks for limiting the mounting part of the cutter body.

[0015] The two ends of the bracket are fixedly provided with supporting barrels, the supporting barrels are coaxially arranged with the lower hole, the inner hole of the supporting barrel allows the bolt to pass through, and the height of the supporting barrel is the same as the thickness of the mounting part of the cutter body.

[0016] In summary, the high-strength powder outlet knife has the advantages of stable installation, long service life and easy use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structure diagram of the high-strength powder outlet knife.

[0018] Figure 2 For Figure 1 Another schematic view.

[0019] Figure 3 A schematic view of the tool holder.

[0020] Figure 4 For Figure 3 An enlarged schematic view of A in the middle.

[0021] Figure 5 A schematic view of the cutter body. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figures 1-5 As shown, a high-strength powder-discharging blade includes a blade body 1 and a blade holder for mounting the blade body;

[0024] The blade body is integrally formed and includes a mounting part 2 and a powder scraping part 3. The powder scraping part is bent relative to the mounting part, forming an angle between the powder scraping part and the mounting part. The end of the powder scraping part away from the mounting part is provided with a blade. The blade holder includes a lower support 4 and an upper support 5. The upper end of the lower support is bent to form a bracket 6 for supporting the mounting part of the blade body. The upper support is located above the mounting part of the blade body. The upper support has upper through holes at both ends. The bracket has a lower through hole opposite the upper through hole. The upper through hole and the lower through hole are located on both sides of the blade body. The bolt 7 passes through the upper through hole and the lower through hole and is connected to the nut. The nut abuts against the lower support. The two ends of the lower support are bent to form mounting ends 8. Mounting holes are provided at both ends of the mounting ends and both ends of the bracket.

[0025] In this way, the blade holder is mounted on the toner cartridge body, and the blade is mounted on the blade holder. Specifically, during assembly, the mounting part of the blade is placed on the bracket, and the upper bracket is placed on the mounting part of the blade. Bolts are passed through the upper and lower through holes and connected to the nuts. The nuts are tightened against the lower bracket, and the upper bracket and bracket are used to press the mounting part of the blade, completing the installation of the blade and facilitating inspection and maintenance. Both ends of the bracket and both ends of the mounting end are fixed to the toner cartridge body with bolts, completing the connection with the toner cartridge body.

[0026] The scraping section of the blade is bent relative to the mounting section, creating an angle between them (45 degrees is acceptable). This design enhances cleaning effectiveness, strengthens the scraping section, and improves the blade's ability to remove material. Furthermore, during scraping, the scraping section experiences a downward force; the bent structure of the blade allows it to withstand this force more effectively, extending its service life.

[0027] In implementation, the upper support is bent downward at the end away from the blade to form a baffle 9, and the mounting portion of the cutter body abuts against the baffle. The baffle is arranged to position the mounting of the cutter body, and the mounting portion of the cutter body is attached to the baffle to improve the mounting accuracy of the cutter body.

[0028] In implementation, the mounting portion of the cutter body is provided with adhesive between the two sides and the bracket and the upper support. The mounting firmness of the cutter body is improved.

[0029] In implementation, a supporting block 10 is fixed to one side of the lower support, the supporting block is hollow, and the upper end of the supporting block is attached to the mounting portion of the cutter body. The supporting block is arranged to support the mounting portion of the cutter body, so that the cutter body is better stressed to prolong the service life.

[0030] In implementation, a plurality of supporting blocks 11 are fixed and mounted to the side of the supporting block away from the lower support, the supporting blocks and the supporting block form a triangular structure, and the upper surface of the supporting block is attached to the scraping portion of the cutter body. The scraping portion of the cutter body is supported by the supporting blocks, the supporting blocks and the supporting block form a triangular structure, so that the supporting strength of the supporting blocks on the scraping portion of the cutter body is higher, the strength of the powder outlet cutter is improved, and the length of the contact surface of the supporting blocks and the scraping portion of the cutter body is less than the length of the scraping portion of the cutter body, so as to avoid interference of the supporting blocks on the scraping action.

[0031] In implementation, two limiting blocks 12 are fixed and mounted downward of the upper support to limit the mounting portion of the cutter body. The two sides of the mounting portion of the cutter body are attached to the limiting blocks, and the end of the cutter body away from the blade is attached to the baffle. The mounting of the cutter body is positioned by three surfaces to improve the mounting accuracy of the cutter body.

[0032] In implementation, support cylinders 13 are fixed and mounted to the two ends of the bracket, the support cylinders are coaxially arranged with the lower hole, the inner hole of the support cylinder allows the bolt to pass through, and the height of the support cylinder is the same as the thickness of the mounting portion of the cutter body. The upper support is supported by the support cylinder, so that after the bolt passes through the upper hole, the bolt passes through the support cylinder and the lower hole and is connected with the nut, so that the connection is more stable and reliable.

[0033] Finally, it should be noted that those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and the statistical number, the utility model also intends to include these modifications and variations.

Claims

1. A high-strength powder discharging blade, characterized in that, Includes a tool body (1) and a tool holder for mounting the tool body; The blade body is integrally formed and includes a mounting part (2) and a powder scraping part (3). The powder scraping part is bent relative to the mounting part so that an angle is formed between the powder scraping part and the mounting part. The end of the powder scraping part away from the mounting part is provided with a blade. The blade holder includes a lower support (4) and an upper support (5). The upper end of the lower support is bent to form a bracket (6) for supporting the mounting part of the blade body. The upper support is set above the mounting part of the blade body. The two ends of the upper support are provided with upper through holes. The bracket is provided with a lower through hole opposite to the upper through hole. The upper through hole and the lower through hole are located on both sides of the blade body. The bolt (7) passes through the upper through hole and the lower through hole and is connected to the nut. The nut abuts against the lower support. The two ends of the lower support are bent to form a mounting end (8). The mounting end and the two ends of the bracket are provided with mounting holes.

2. The high-strength powder discharge blade according to claim 1, characterized in that, The upper support is bent downward at the end away from the blade to form a baffle (9), and the mounting part of the blade body abuts against the baffle.

3. A high-strength powder discharge blade according to claim 2, characterized in that, Adhesive is provided on both sides of the mounting part of the blade body between it and the bracket and the upper support.

4. A high-strength powder discharge blade according to claim 1, characterized in that, A support block (10) is fixed on one side of the lower support. The support block is hollow and its upper end fits against the mounting part of the blade body.

5. A high-strength powder discharge blade according to claim 4, characterized in that, A number of spaced support blocks (11) are fixedly installed on the side of the support block away from the lower bracket. The support blocks and the support block form a triangular structure, and the upper surface of the support blocks is in contact with the powder scraping part of the blade.

6. A high-strength powder discharge blade according to claim 1, characterized in that, The upper bracket is fixedly mounted with two limiting blocks (12) for limiting the mounting part of the blade body.

7. A high-strength powder discharge blade according to claim 1, characterized in that, Support cylinders (13) are fixedly installed at both ends of the bracket. The support cylinders are coaxially arranged with the lower through hole. The inner hole of the support cylinder allows bolts to pass through. The height of the support cylinder is the same as the thickness of the mounting part of the blade body.

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