Toner cartridge doctor blade

Abstract

The utility model discloses a toner cartridge doctor blade which comprises a knife rest, a blade connected to the knife rest, a bridging mechanism arranged on the knife rest and a positioning mechanism, the knife rest comprises a first panel and a second panel which are arranged at an angle, the blade is attached and fixed to the surface of the first panel, and the positioning mechanism comprises positioning hanging lugs oppositely arranged at the two ends of the first panel. According to the toner cartridge powder discharging knife, the knife rest is divided into the first panel and the second panel which are arranged at the angle, the first panel is used for attaching and fixing the blade, and the positioning hanging lugs are arranged at the two ends of the first panel and used for achieving fastening connection of the knife rest and the powder bin shell. The second panel provided with the bridging mechanism can be exactly connected between the positioning hanging lugs and is used for realizing stable erection of the tool rest on the powder bin shell, a structure for bridging and positioning is shared by two different panels which are arranged at an angle, and the design provides an effective basis and direction for reducing consumables of each panel on the tool rest, so that the tool rest can be stably erected on the powder bin shell. And the production cost can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing consumable equipment, and particularly relates to a toner outlet blade for a toner cartridge.

Background Art

[0002] For the blade holder part of the existing toner outlet blade installed in a toner cartridge, the plate part needs to be processed through multiple processes, including stamping, punching, bending and other processes. Among them, when punching, at least two positioning holes and two fixing holes need to be punched at both ends of the toner outlet blade holder; then, when bending, the whole blade holder needs to be bent along the length direction of the toner outlet blade to a state where the cross-section is in an L shape, so that the blade holder forms two mutually perpendicular panel parts, and the punching holes are all located at both ends of one panel, and the edge of the other panel along the length direction of the toner outlet blade is used to join the blade; finally, when installing it into the powder bin, it is necessary to first place the panel with holes on the shell of the powder bin, and after the positioning holes are matched with the corresponding positioning structures protruding on the powder bin shell, then use screws through the fixing holes to fix the toner outlet blade and the powder bin shell. However, for the plate part of the toner outlet blade holder with this structure, the consumption of consumables for the panel part on the same side as the punching is relatively serious, which is not conducive to saving production costs. Therefore, a new type of toner outlet blade is needed to reduce the consumption of the plate required for the toner outlet blade holder and save production costs.

Summary of the Invention

[0003] The purpose of the utility model is to provide a new type of toner outlet blade for a toner cartridge to solve the problem of serious consumption of the plate during the production of the blade holder of the existing toner outlet blade.

[0004] The technical solution provided by the utility model is as follows: A toner outlet blade for a toner cartridge includes a blade holder, a blade connected to the blade holder, a bridging mechanism provided on the blade holder, and a positioning mechanism. The blade holder includes a first panel and a second panel arranged at an angle. The blade is fixedly attached to the surface of the first panel. The positioning mechanism includes positioning lugs oppositely arranged at both ends of the first panel. The connection part between the second panel and the first panel is located between the opposite positioning lugs. The bridging mechanism is provided on the second panel. When the positioning lugs face the corresponding fixed positions on the powder bin shell, the second panel is bridged on the powder bin shell through the bridging mechanism to position the blade holder on the powder bin shell.

[0005] For a toner outlet blade for a toner cartridge as described above, the positioning mechanism further includes fixing holes respectively opened on each of the positioning lugs, and the positioning lugs are arranged at both ends of the first panel along the width direction of the first panel.

[0006] For a toner outlet blade for a toner cartridge as described above, each of the positioning lugs is provided with a fixing hole.

[0007] A toner cartridge powder outlet blade as described above, wherein an avoidance groove is provided on an edge of the first panel close to the positioning lug, and the avoidance groove is located between the positioning lug and the second panel.

[0008] A toner cartridge powder outlet blade as described above, wherein the width of the second panel is greater than the width of the first panel, and the length of the first panel is greater than the length of the second panel.

[0009] A toner cartridge powder outlet blade as described above, wherein the bridging mechanism includes a bridging surface provided on a surface of the second panel close to the first panel, and the bridging surface is used to abut against the powder cartridge housing to mount the blade holder.

[0010] A toner cartridge powder outlet blade as described above, wherein the bridging mechanism further includes limiting surfaces provided on opposite sides of the second panel along the length direction. The second panel and the first panel are integrally formed plates, and the second panel and the first panel are bent at an angle, so that the groove wall of the avoidance groove located on the second panel forms the limiting surface.

[0011] A toner cartridge powder outlet blade as described above, wherein the second panel and the first panel are bent at a right angle, so that the cross-section of the blade holder is in an "L" shape.

[0012] A toner cartridge powder outlet blade as described above, wherein the blade includes a knife plate portion and a scraping portion. The scraping portion is bent and provided on an edge of the knife plate portion arranged along the length direction of the first panel, and the knife plate portion is fixedly attached to a surface of the first panel away from the second panel.

[0013] A toner cartridge powder outlet blade as described above, wherein the fitting area between the knife plate portion and the first panel accounts for one-third to one-half of one surface of the knife plate portion.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] For the toner cartridge powder outlet blade of the present invention, the blade holder is divided into a first panel and a second panel arranged at an angle. Among them, the first panel is both used to fixedly attach the blade and is provided with positioning lugs at both ends for realizing the firm connection between the blade holder and the powder cartridge housing. And the second panel provided with the bridging mechanism can just be connected between the positioning lugs for realizing the stable erection of the blade holder on the powder cartridge housing. It is equivalent to distributing the structures for bridging and positioning on the same panel of the existing toner cartridge powder outlet blade to two different panels arranged at an angle. This design provides an effective basis and direction for reducing the consumables of each panel on the blade holder, which is conducive to saving the production cost.

Description of the Drawings

[0016] Figure 1 It is a three-dimensional view of the toner cartridge powder outlet blade of the present invention.

[0017] Figure 2 This is a perspective view of the toner outlet blade of the present utility model from another angle.

[0018] Figure 3 This is a side view of the toner outlet blade of the present utility model.

[0019] Description of reference numerals: 1, blade holder; 2, blade; 3, bridging mechanism; 4, positioning mechanism; 11, first panel; 12, second panel; 21, blade plate part; 22, scraping part; 31, bridging surface; 32, limiting surface; 41, positioning lug; 42, fixing hole; 111, avoidance groove.

Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0021] Embodiment 1: Please refer to the attached Figure 1 to the attached Figure 3 , this embodiment provides a toner outlet blade, including a blade holder 1, a blade 2 connected to the blade holder 1, a bridging mechanism 3 provided on the blade holder 1, and a positioning mechanism 4. The blade holder 1 includes a first panel 11 and a second panel 12 arranged at an angle. The blade 2 is fixedly attached to the surface of the first panel 11. The positioning mechanism 4 includes positioning lugs 41 relatively arranged at both ends of the first panel 11. The connection between the second panel 12 and the first panel 11 is located between the opposite positioning lugs 41. The bridging mechanism 3 is provided on the second panel 12. When the positioning lugs 41 face the corresponding fixed positions of the powder cartridge housing, the second panel 12 is bridged on the powder cartridge housing through the bridging mechanism 3 to position the blade holder 1 on the powder cartridge housing. For the toner outlet blade of this embodiment, the blade holder 1 is divided into a first panel 11 and a second panel 12 arranged at an angle. Among them, the first panel 11 is both used to fixedly attach the blade 2 and is provided with positioning lugs 41 at both ends for realizing the firm connection between the blade holder 1 and the powder cartridge housing. And the second panel 12 provided with the bridging mechanism 3 can just be connected and arranged between the positioning lugs 41 for realizing the stable erection of the blade holder 1 on the powder cartridge housing. It is equivalent to distributing the structures for bridging and positioning on the same panel of the existing toner outlet blade to two different panels arranged at an angle. This design provides an effective basis and direction for reducing the consumables of each panel on the blade holder, which is conducive to saving production costs.

[0022] The positioning mechanism 4 further includes fixing holes 42 respectively formed on each positioning lug 41. The positioning lugs 41 are arranged at both ends of the first panel 11 along the width direction of the first panel 11. Preferably, one fixing hole 42 is formed on each positioning lug 41. Compared with the double-hole structure arranged in pairs on the existing powder discharging knife, the adoption of one fixing hole 42 on one positioning lug 41 can effectively control the consumable area of the positioning lug 41. Only by setting the corresponding hole position on the powder bin housing into a protruding cylindrical hole, the fixing hole 42 can be pre-nested on the outer peripheral side of the cylindrical hole before being fixed by screws, and at the same time, the positioning effect of the positioning hole of the existing powder discharging knife and the fastening connection effect of the fixing hole are realized.

[0023] On the edge of the first panel 11 close to the positioning lug 41, there is an avoidance groove 111. The avoidance groove 111 is located between the positioning lug 41 and the second panel 12. The setting of the avoidance groove 111 can prevent the second panel 12 from rubbing against the positioning lug 41 and other interference phenomena.

[0024] The width of the second panel 12 is greater than the width of the first panel 11, and the length of the first panel 11 is greater than the length of the second panel 12. This setting ensures that the first panel 11 is stably connected to the blade 2 and can be stably erected on the second panel 12, and on this basis, the panel consumables are adjusted in a suitable proportion with the second panel 12.

[0025] The bridging mechanism 3 includes a bridging surface 31 provided on the surface of the second panel 12 close to the first panel 11. The bridging surface 31 is used to abut against the powder bin housing to erect the tool rest 1. The bridging mechanism and the positioning mechanism of the existing powder discharging knife are located on the same panel, which will cause unnecessary redundant sheet material consumption. In the powder discharging knife of this embodiment, the bridging mechanism 3 makes full use of the surface of the second panel 12 as the bridging surface 31, and on the premise of fully playing the bridging role of the second panel 12, it provides sufficient adjustment space for the sheet material consumption of the second panel 12

[0026] The bridging mechanism 3 further includes limiting surfaces 32 provided on the opposite sides of the second panel 12 along the length direction. The second panel 12 and the first panel 11 are integrally formed sheets, and the second panel 12 and the first panel 11 are bent at an angle, so that the groove wall of the avoidance groove 111 located on the second panel 12 forms the limiting surface 32. After the bridging surface 31 abuts against the powder bin housing, the limiting surface 32 is used to abut against the corresponding structure on the powder bin housing, which can limit the reciprocating movement of the tool rest 1 along the length direction to assist in positioning the tool rest 1.

[0027] The second panel 12 and the first panel 11 are bent at a right angle, so that the cross-section of the tool rest 1 is in an "L" shape. The "L"-shaped bending setting can fix the powder discharging knife on the powder bin housing in a way that maximally restricts the degrees of freedom.

[0028] The blade 2 includes a blade plate portion 21 and a scraping portion 22. The scraping portion 22 is bent and disposed on the edge of the blade plate portion 21 arranged along the length direction of the first panel 11. The blade plate portion 21 is fixedly attached to the side of the first panel 11 away from the second panel 12. This design facilitates the connection and assembly of the blade 2 and the tool holder 1 during the production process.

[0029] The fitting area between the blade plate portion 21 and the first panel 11 accounts for one-third to one-half of one side of the blade plate portion 21. With this fitting area, the connection between the blade plate portion 21 and the first panel 11 is more firm.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A toner cartridge doctor blade, characterized in that: It includes a tool rest (1), a blade (2) connected to the tool rest (1), a bridging mechanism (3) and a positioning mechanism (4) provided on the tool rest (1). The tool rest (1) includes a first panel (11) and a second panel (12) arranged at an angle. The blade (2) is fixedly attached to the surface of the first panel (11). The positioning mechanism (4) includes positioning lugs (41) oppositely provided at both ends of the first panel (11). The connection between the second panel (12) and the first panel (11) is located between the opposite positioning lugs (41). The bridging mechanism (3) is provided on the second panel (12). When the positioning lugs (41) are aligned with the corresponding fixed positions of the powder bin housing, the second panel (12) is bridged on the powder bin housing through the bridging mechanism (3) to position the tool rest (1) on the powder bin housing.

2. The toner outlet blade according to claim 1, characterized in that: The positioning mechanism (4) further includes fixing holes (42) respectively opened on each of the positioning lugs (41). The positioning lugs (41) are arranged at both ends of the first panel (11) along the width direction of the first panel (11).

3. The toner outlet blade according to claim 2, characterized in that: One fixing hole (42) is opened on each of the positioning lugs (41).

4. The toner outlet blade according to claim 2, wherein: On the edge of the first panel (11) on the side close to the positioning lug (41), an avoidance groove (111) is provided. The avoidance groove (111) is located between the positioning lug (41) and the second panel (12).

5. The toner outlet blade according to claim 4, wherein: The width of the second panel (12) is greater than the width of the first panel (11), and the length of the first panel (11) is greater than the length of the second panel (12).

6. The toner outlet blade according to claim 4, characterized in that: The bridging mechanism (3) includes a bridging surface (31) provided on the surface of the second panel (12) close to the first panel (11). The bridging surface (31) is used to abut against the powder bin housing to bridge the tool rest (1).

7. A toner outlet blade according to claim 5, characterized in that: The bridging mechanism (3) further includes limiting surfaces (32) provided on the opposite two sides of the second panel (12) along the length direction. The second panel (12) and the first panel (11) are integrally formed plates. The second panel (12) and the first panel (11) are bent at an angle so that the groove wall of the avoidance groove (111) located on the second panel (12) forms the limiting surface (32).

8. The toner outlet blade according to claim 7, characterized in that: The second panel (12) and the first panel (11) are bent at a right angle so that the cross-section of the tool rest (1) is in an "L" shape.

9. The toner outlet blade according to claim 1, characterized in that: The blade (2) includes a knife plate part (21) and a scraping part (22). The scraping part (22) is bent and provided on the edge of the knife plate part (21) arranged along the length direction of the first panel (11). The knife plate part (21) is fixedly attached to the surface of the first panel (11) away from the second panel (12).

10. A toner outlet blade according to claim 9, characterized in that: The fitting area between the knife plate part (21) and the first panel (11) accounts for one-third to one-half of one side of the knife plate part (21).

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