CN212009284U

CN212009284U - Developing box

Info

Publication number: CN212009284U
Application number: CN202021041321.3U
Authority: CN
Inventors: 赵文杰; 李志威; 周实
Original assignee: Ninestar Corp
Current assignee: Ninestar Corp
Priority date: 2019-06-28
Filing date: 2020-06-08
Publication date: 2020-11-24
Anticipated expiration: 2030-06-08
Also published as: CN212009283U; CN112147863A; CN112147864A

Abstract

The utility model provides a developing box, which comprises a developing component and a powder storage component, wherein the developing component is detachably connected with the powder storage component; the developing assembly comprises a first powder bin, a first waste powder bin and a developing unit, wherein the first powder bin is used for supplying carbon powder to the developing unit, and the first waste powder bin is used for receiving waste carbon powder output by the developing unit; the powder storage assembly comprises a shell, a second powder bin and a second waste powder bin are arranged in the shell, the second powder bin is communicated with the first powder bin, the second waste powder bin is communicated with the first waste powder bin, and the height of the second powder bin relative to the second waste powder bin in the vertical direction is higher than the height of the first powder bin relative to the second waste powder bin in the vertical direction. The utility model provides a developing box has improved developing box's powder feeding ability.

Description

Developing box

Technical Field

The utility model relates to an electronic imaging technical field especially relates to a developing box.

Background

The developing box is taken as a detachable and replaceable office supplies and is widely applied to imaging developing equipment such as printers or copiers, developers such as carbon powder are generally stored in the developing box, and the developers in the developing box are transferred to paper through cooperation with a developing device, so that the printing function of the developing equipment is realized.

In the prior art, a developing cartridge generally includes a powder bin, a waste powder bin, and a developing unit, where the powder bin and the waste powder bin are disposed at different sides of the developing unit, the powder bin is used to store developers such as carbon powder, and the developers are supplied to the developing unit through a supply mechanism in the powder bin, the developing unit performs imaging by using the developers, and the waste powder after imaging is stored in the waste powder bin. At present, the structural design of the developing box is generally compact and complex, the powder bin, the waste powder bin and the developing unit are arranged adjacently, and the shapes of the powder bin and the waste powder bin are matched with the appearance of the developing unit.

However, the powder feeding capability of the present developing cartridge is low.

SUMMERY OF THE UTILITY MODEL

The utility model provides a developing box has improved the powder feeding ability.

The utility model provides a developing box, including developing assembly and storage powder subassembly, developing assembly can dismantle with storage powder subassembly and be connected.

The developing assembly comprises a first powder bin, a first waste powder bin and a developing unit, wherein the first powder bin is used for supplying carbon powder to the developing unit, and the first waste powder bin is used for receiving the waste carbon powder output by the developing unit; the powder storage assembly comprises a shell, a second powder bin and a second waste powder bin are arranged in the shell, the second powder bin is communicated with the first powder bin, the second waste powder bin is communicated with the first waste powder bin, and the height of the second powder bin relative to the second waste powder bin in the vertical direction is higher than the height of the first powder bin relative to the second waste powder bin in the vertical direction.

As an optional mode, the utility model provides a developing box, the height that second useless powder storehouse and first useless powder storehouse were located mutually supports in vertical direction.

As an optional mode, the utility model provides a developing box, second powder storehouse have at least one carbon dust delivery outlet, and the first end and the second of carbon dust delivery outlet are whitewashed the storehouse intercommunication, and the second end of carbon dust delivery outlet runs through the useless powder storehouse of second to with first powder storehouse intercommunication.

As an optional mode, the utility model provides a developing box, the first end of carbon powder delivery outlet and the diapire intercommunication in second powder storehouse, the second end of carbon powder delivery outlet stretches out downwards to communicate with first powder storehouse.

As an optional mode, the utility model provides a developing box, casing include first casing, second casing and third casing, and first casing and second casing enclose into the cavity jointly, and the third casing sets up in the cavity to separate into second powder storehouse and the useless powder storehouse of second with the cavity.

As an optional mode, the utility model provides a developing box, first useless powder storehouse have at least one useless powder delivery outlet, and the useless powder storehouse of second has at least one useless powder input port, and useless powder input port corresponds the setting with useless powder delivery outlet and is in order to communicate useless powder storehouse of second and first useless powder storehouse.

As an optional mode, the utility model provides a developing box is provided with the powder feeding mechanism in the second powder storehouse, and the powder feeding mechanism is used for sending the carbon dust in the second powder storehouse to the carbon dust delivery outlet.

As an optional mode, the powder feeding mechanism of the developing cartridge provided by the present invention includes a first powder feeding assembly and a second powder feeding assembly, the first powder feeding assembly includes two first rotating shafts arranged in parallel and a conveyor belt wound outside the two first rotating shafts, a first end of the conveyor belt extends into the second powder bin, a second end of the conveyor belt extends to the carbon powder output port, and a conveying direction of the conveyor belt points to the carbon powder output port; the second powder feeding assembly comprises a second rotating shaft and blades connected to the second rotating shaft, and the blades can rotate under the driving of the second rotating shaft so as to stir the carbon powder to the first powder feeding assembly.

As an optional mode, the developing box provided by the utility model further comprises a third powder bin, the third powder bin is arranged at the side of the second powder bin, and the third powder bin is communicated with the second powder bin, and the third powder bin is provided with a carbon powder adding port communicated with the outside of the shell; the second rotating shaft extends into the third powder bin, and the second rotating shaft is provided with a helical blade which is positioned in the third powder bin and used for conveying carbon powder added in the third powder bin into the second powder bin under the driving of the second rotating shaft.

As an optional mode, the developing cartridge provided by the present invention further comprises a driving unit, the driving unit is mounted on the powder storage assembly, and the driving unit is used for driving the powder feeding mechanism; the driving unit comprises a first gear, a second gear and a third gear, the first gear is connected with the second gear through a synchronous belt and used for driving the first powder feeding assembly to rotate, the second gear is meshed with the third gear, and the third gear is used for driving the second powder feeding assembly to rotate.

As an optional mode, the utility model provides a developing box is provided with useless powder derivation mechanism in the first useless powder storehouse, and useless powder derivation mechanism is used for sending the abandonment carbon dust to useless powder delivery outlet.

The utility model provides a developing box, including developing assembly and storage powder subassembly, developing assembly can dismantle with storage powder subassembly and be connected. The developing assembly comprises a first powder bin, a first waste powder bin and a developing unit, wherein the first powder bin is used for supplying carbon powder to the developing unit, and the first waste powder bin is used for receiving the waste carbon powder output by the developing unit; the powder storage assembly comprises a shell, and a second powder bin and a second waste powder bin are arranged in the shell; first useless powder storehouse and the useless powder storehouse intercommunication of second, and the relative height in second powder storehouse is higher than the relative height in first powder storehouse to it is more convenient during the powder feeding, with this powder feeding ability that has improved the developing box.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural view of a developing cartridge according to an embodiment of the present application;

fig. 2 is a sectional view of a developing cartridge according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a toner storing assembly of a developing cartridge according to an embodiment of the present disclosure;

fig. 4 is an exploded view of a toner storing assembly of a developing cartridge according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a driving unit in a developing cartridge according to an embodiment of the present application.

Description of reference numerals:

1-a developing cartridge;

10-a developing assembly;

11-a developing unit;

12-a first powder bin;

121-a carbon powder input port;

13-a first waste powder bin;

131-waste powder outlet;

132-waste powder lead-out mechanism;

20-a powder storage component;

21-a housing;

211-a first housing;

212-a second housing;

213-a third housing;

22-a second powder bin;

221-carbon powder output port;

23-a second waste powder bin;

231-waste powder input port;

24-a powder feeding mechanism;

241-a first powder feeding assembly;

2411-a first rotating shaft;

2412-conveying belt;

2412 a-a first end;

2412 b-a second end;

242-a second powder feed assembly;

2421-a second rotating shaft;

2422-blade;

2423-helical blade;

25-side end cap;

30-a drive unit;

31-a first gear;

32-a second gear;

33-third gear;

34-a synchronous belt;

40-a third powder bin.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

First of all, it should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications.

Next, it should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", and the like are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that a device or member must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The developing box is taken as a detachable and replaceable office supplies and is widely applied to imaging developing equipment such as printers or copiers, developers such as carbon powder are generally stored in the developing box, and the developers in the developing box are transferred to paper through cooperation with a developing device, so that the printing function of the developing equipment is realized. In the prior art, a developing cartridge generally includes a powder bin, a waste powder bin, and a developing unit, where the powder bin and the waste powder bin are disposed at different sides of the developing unit, the powder bin is used to store developers such as carbon powder, and the developers are supplied to the developing unit through a supply mechanism in the powder bin, the developing unit performs imaging by using the developers, and the waste powder after imaging is stored in the waste powder bin. At present, the structural design of the developing box is generally compact and complex, the powder bin, the waste powder bin and the developing unit are arranged adjacently, and the shapes of the powder bin and the waste powder bin are matched with the appearance of the developing unit. However, the structure of the present developing cartridge is compact, and it is easy to clamp the toner when transporting the toner, and the toner feeding capability is low.

In order to solve the problem, the embodiment of the utility model provides a developing box has increased the powder feeding ability of powder box.

Fig. 1 is a schematic structural view of a developing cartridge according to an embodiment of the present application; fig. 2 is a sectional view of a developing cartridge according to an embodiment of the present application; FIG. 3 is a schematic structural diagram of a toner storing assembly of a developing cartridge according to an embodiment of the present disclosure; fig. 4 is an exploded view of a toner storing assembly of a developing cartridge according to an embodiment of the present application; fig. 5 is a schematic structural diagram of a driving unit in a developing cartridge according to an embodiment of the present application. As shown in fig. 1 to 5, the present embodiment provides a developing cartridge 1 including: the developing assembly 10 and the powder storage assembly 20 are detachably connected, and the developing assembly 10 and the powder storage assembly 20 are detachably connected.

The developing assembly 10 comprises a first powder bin 12, a first waste powder bin 13 and a developing unit 11, wherein the first powder bin 12 is used for supplying carbon powder to the developing unit 11, and the first waste powder bin 13 is used for receiving the waste carbon powder output by the developing unit 11; the powder storage assembly 20 comprises a shell 21, wherein a second powder bin 22 and a second waste powder bin 23 are arranged in the shell 21; the second powder bin 22 is communicated with the first powder bin 12, the second waste powder bin 23 is communicated with the first waste powder bin 13, and the height of the second powder bin 22 relative to the second waste powder bin 23 in the vertical direction is higher than the height of the first powder bin 12 relative to the second waste powder bin 23 in the vertical direction, so that carbon powder in the second powder bin 22 can enter the first powder bin 12 conveniently, and the powder feeding capacity is improved.

Specifically, the developing unit 11 includes a photosensitive drum, which is pre-charged and forms a latent image under illumination, the toner in the first toner hopper 12 is adsorbed onto the rotating photosensitive drum under the action of the charge to form an image, and then can be transferred onto paper, and the toner remaining on the continuously rotating photosensitive drum is cleaned into the first waste toner hopper 13. The specific structure of the developing unit 11 and the operation thereof are the prior art and will not be described herein.

Specifically, the developing assembly 10 and the powder storage assembly 20 are detachably connected, when the developing assembly 10 is connected with the powder storage assembly 20, the connecting position of the developing assembly 10 and the powder storage assembly 20 needs to be sealed to avoid leakage of carbon powder, if a sealing rubber ring is arranged at the connecting position of the developing assembly 10 and the powder storage assembly 20, the sealing performance of the connecting position of the developing assembly 10 and the powder storage assembly 20 can be ensured, and the embodiment does not limit the connecting position.

The first powder bin 12 and the first waste powder bin 13 of the developing assembly 10 are relatively independent closed cavities, the structure of the developing assembly is adapted to the developing unit 11, similarly, the second powder bin 22 and the second waste powder bin 23 of the powder storage assembly 20 are also relatively independent cavities, the two cavities are used as extensions in the space of the first powder bin 12 and the first waste powder bin 13 and are respectively communicated with the first powder bin 12 and the first waste powder bin 13, carbon powder in the second powder bin 22 can be supplemented to the first powder bin 12, waste carbon powder in the first waste powder bin 13 can also be conveyed to the second waste powder bin 23, and the containing spaces of the carbon powder and the waste carbon powder are increased to a certain extent.

Optionally, the outer surface of the developing assembly 10 is provided with at least one threaded hole, correspondingly, the position where the powder storage assembly 20 is matched with the developing assembly 10 is provided with at least one through hole, the through hole corresponds to the threaded hole on the outer surface of the developing assembly 10 one to one, and when the developing assembly is assembled, the developing assembly 10 and the powder storage assembly 20 are fixedly connected by penetrating the through hole on the powder storage assembly 20 through a screw and screwing the threaded hole on the developing assembly 10.

In this embodiment, the developing assembly 10 is connected to the powder storage assembly 20, at this time, the first powder bin 12 and the first waste powder bin 13 in the developing assembly 10 are respectively communicated with the second powder bin 22 and the second waste powder bin 23 in the powder storage assembly 20, so as to replenish carbon powder to the first powder bin 12 through the second powder bin 22, and receive waste carbon powder output from the first waste powder bin 13 through the second waste powder bin 23, specifically, carbon powder is stored in the second powder bin 22, the second powder bin 22 is communicated with the first powder bin 12, the second powder bin 22 replenishes carbon powder to the first powder bin 12, and the waste carbon powder is developed by the developing unit 11 in the developing assembly 10, and the waste carbon powder after being developed is conveyed into the first waste powder bin 13 on the upper side of the developing assembly 10, because the first waste powder bin 13 is communicated with the second waste powder bin 23, the waste carbon powder in the first waste bin 13 can also enter the second waste powder bin 23, and the conveying process of carbon powder can be completed, compared with the second waste powder bin 23, the height of the second powder bin 22 in the vertical direction is higher than that of the first powder bin 12, so that carbon powder in the second powder bin 22 can better enter the first powder bin 12 through certain gravity when the carbon powder is supplemented into the first powder bin 12, and the powder feeding capacity is improved.

The embodiment provides a developing box 1, can dismantle the connection through setting up developing assembly 10 and storing up powder subassembly 20, first powder storehouse 12 in the developing assembly 10 and the second powder storehouse 22 intercommunication in the powder subassembly 20 of storage, first useless powder storehouse 13 in the developing assembly 10 and the useless powder storehouse 23 intercommunication of second in the powder subassembly 20 of storage, and the relative height in second powder storehouse 22 is higher than the relative height in first powder storehouse 12, it is more convenient when sending powder to first powder storehouse 12 in second powder storehouse 22 to this powder feeding ability that has improved developing box.

Optionally, the heights of the second waste powder bin 23 and the first waste powder bin 13 in the vertical direction are matched with each other, wherein when the developing assembly 10 and the powder storage assembly 20 are connected, the second waste powder bin 23 is in butt joint with the first waste powder bin 13, the heights of the second waste powder bin 23 and the first waste powder bin 13 in the vertical direction are matched with each other, and waste carbon powder in the first waste powder bin 13 can enter the second waste powder bin 23 more smoothly.

Optionally, the second powder bin 22 has at least one toner output port 221, a first end of the toner output port 221 is communicated with the second powder bin 22, and a second end of the toner output port 221 penetrates through the second waste powder bin 23 and is communicated with the first powder bin 12.

It is understood that the second powder bin 22 is disposed at an upper position of the second waste powder bin 23, and when the developing assembly 10 and the powder storage assembly 20 are coupled, the first powder bin 12 is disposed at a lower position of the second waste powder bin 23, and in order to transfer the toner in the second powder bin 22 into the first powder bin 12, a toner output port 221 penetrating the second waste powder bin 23 is disposed on the second powder bin 22 and connected to the first powder bin 12 through the toner output port 221, thereby transferring the toner in the second powder bin 22 at the upper position of the second waste powder bin 23 into the first powder bin 12 at the lower position of the second waste powder bin 23.

Optionally, a first end of the toner output port 221 is communicated with a bottom wall of the second powder bin 22, a second end of the toner output port 221 extends downward to be communicated with the first powder bin 12, that is, one end of the toner output port 221 is connected with the bottom wall of the second powder bin 22, the other end of the toner output port 221 penetrates through and extends out of the second waste powder bin 23, and the other end of the toner output port 221 is in butt joint with the first powder bin 12, so that toner in the second powder bin 22 can be better conveyed into the first powder bin 12 through the toner output port 221.

As an alternative mode, in the developing cartridge 1 provided in the embodiment of the present invention, the casing 21 includes the first casing 211, the second casing 212, and the third casing 213, the first casing 211 and the second casing 212 together enclose the hollow cavity, and the third casing 213 is disposed in the hollow cavity and partitions the hollow cavity into the second powder bin 22 and the second waste powder bin 23.

Specifically, the first housing 211 and the second housing 212 jointly enclose to form a hollow cavity, and the hollow cavity enclosed by the first housing 211 and the second housing 212 is divided into the second powder bin 22 and the second waste powder bin 23 by the third housing 213, that is, the upper inner wall of the third housing 213 and the part of the outer wall of the second housing 212 facing the first housing 211 jointly enclose the second powder bin 22, and the lower inner wall of the third housing 213 and the part of the outer wall of the first housing 211 facing the second housing 212 jointly enclose the second waste powder bin 23.

Specifically, the opening edge of the first housing 211 corresponds to the opening edge of the second housing 212, and the second housing 212 is covered on the first housing 211, so that the hollow cavity is relatively sealed; the third housing 213 is directly disposed in the hollow cavity and divides the hollow cavity into two cavity structures that are not communicated with each other, wherein the upper cavity is the second powder bin 22, and the lower cavity is the second waste powder bin 23.

Optionally, the first waste powder bin 13 has at least one waste powder outlet 131, the second waste powder bin 23 has at least one waste powder inlet 231, and the waste powder inlet 231 and the waste powder outlet 131 are correspondingly disposed to communicate the second waste powder bin 23 and the first waste powder bin 13.

If only one waste powder input port 231 and one waste powder output port 131 are provided, the two waste powder input ports and the waste powder output port 131 are respectively arranged at the middle positions of the developing assembly 10 and the powder storage assembly 20; if there are a plurality of toner input ports 121 and 221, they are symmetrically disposed on the developing assembly 10 and the powder storage assembly 20, respectively.

Optionally, the shapes and sizes of the waste powder input port 231 and the waste powder output port 131 are adapted to each other so as to be capable of being butted, the waste powder input port 231 is arranged at one side of the joint of the first housing 211 and the second housing 212, the edge of the waste powder input port 231 is provided with a protruding structure, the size of the outer wall of the protruding structure is adapted to the size of the waste powder output port 131, when the waste powder input port 231 is connected with the waste powder output port 131, the protruding structure on the waste powder input port 231 is inserted into the waste powder output port 131, the insertion direction is from top to bottom, and meanwhile, a sealing rubber ring can be arranged at the interface, so that when carbon powder in the first waste powder bin 13 is conveyed to the second waste powder bin 23, leakage of the carbon powder can.

As an optional mode, the embodiment of the present invention provides a developing cartridge 1, which is provided with a powder feeding mechanism 24 in the second powder bin 22, wherein the powder feeding mechanism 24 is used for feeding the carbon powder in the second powder bin 22 to the carbon powder output port 221, so as to convey the carbon powder in the second powder bin 22 to the first powder bin 12 through the carbon powder output port 221, and supplement the carbon powder in the first powder bin 12 is realized.

Optionally, the powder feeding mechanism 24 includes a first powder feeding assembly 241 and a second powder feeding assembly 242, the first powder feeding assembly 241 includes two first rotating shafts 2411 arranged in parallel and a conveyor belt 2412 wound outside the two first rotating shafts 2411, a first end 2412a of the conveyor belt 2412 extends into the second powder bin 22, a second end 2412b of the conveyor belt 2412 extends to the toner powder output port 221, a conveying direction of the conveyor belt 2412 is directed to the toner powder output port 221, and a width of the conveyor belt 2412 is adapted to an in-bin width of the second powder bin 22, so that the first powder feeding assembly 241 can cover the second powder bin 22 as much as possible, and thus, the powder feeding efficiency of the powder feeding assembly 241 can be improved; the second powder feeding assembly 242 comprises a second rotating shaft 2421 and blades 2422 connected to the second rotating shaft 2421, and the blades 2422 can be driven by the second rotating shaft 2421 to rotate so as to stir the carbon powder to the first powder feeding assembly 241. Specifically, the second powder feeding assembly 242 is located inside the second powder bin 22, that is, the second powder feeding assembly 242 is located on the first end 2412a side of the first powder feeding assembly 241, the blade 2422 is of a plate-shaped structure, and the length of the blade 2422 along the axial direction of the second rotating shaft 2421 is equal to the length of the conveyor 2412 along the axial direction of the first rotating shaft 2411. In addition, the rotation direction of the second rotating shaft 2421 is the same as the rotation direction of the first rotating shaft 2411, so that the second rotating shaft 2421 drives the blades 2422 to move the toner deep inside the second powder bin 22 to the transmission belt 2412.

As an optional mode, the embodiment of the present invention provides a developing cartridge 1, further comprising a third powder bin 40, wherein the third powder bin 30 is disposed on the side of the second powder bin 22, and the third powder bin 40 is communicated with the second powder bin 22, and the third powder bin 40 can be provided with a carbon powder adding port communicated with the outside of the housing.

The third powder bin 40 may be integrally formed with the powder storage assembly 20, or may be separately disposed. An inclined structure may be provided at the bottom of the third powder hopper 40 so that the toner in the third powder hopper 40 can freely flow into the second powder hopper 22.

In addition, the second rotating shaft 2421 can extend into the third powder bin 40, and the helical blade 2423 is disposed on the second rotating shaft 2421, the helical blade 2423 is located in the third powder bin 40, and is driven by the second rotating shaft 2421 to rotate, so as to stir the carbon powder in the third powder bin 40 and send the carbon powder into the second powder bin 22.

Optionally, the developing cartridge 1 provided in this embodiment further includes a driving unit 30, the driving unit 30 is mounted on the powder storage assembly 20, and the driving unit 30 is configured to drive the powder feeding mechanism 24; the driving unit 30 comprises a first gear 31, a second gear 32 and a third gear 33, the first gear 31 is connected with the second gear 32 through a timing belt 34 and used for driving the first powder feeding assembly 241 to rotate, the second gear 32 is meshed with the third gear 33, and the third gear 33 is used for driving the second powder feeding assembly 242 to rotate.

Optionally, a first gear 31 is mounted at one end of the first rotating shaft 2411 of the first powder feeding assembly 241 facing one end of the toner output port 221, a second gear 32 is also mounted at one end of the second rotating shaft 2421 of the second powder feeding assembly 242, and similarly, a third gear 33 is also mounted at one end of the third rotating shaft 2431 of the third powder feeding assembly 243. The first gear 31, the second gear 32 and the third gear 33 are all located outside the second powder bin 22, the first gear 31, the second gear 32 and the third gear 33 are located on the same side of the second powder bin 22, and a side end cover 25 is further arranged on the same side and covers the outside of the first gear 31, the second gear 32 and the third gear 33.

Specifically, the second gear 32 is engaged with the third gear 33, the second gear 32 rotates the third gear 33, and the second gear 32 rotates the first gear 31 through the timing belt 34, and the timing belt 34 is installed on the first rotating shaft 2411 and the second rotating shaft 2421. When the developing cartridge 1 is mounted on the printing apparatus, the driving unit in the printing apparatus drives the second gear 32 to rotate, thereby realizing the operation of the entire powder feeding mechanism 24.

As an optional mode, the embodiment of the utility model provides a developing box 1, be provided with useless powder derivation mechanism 132 in the first useless powder storehouse 13, useless powder derivation mechanism 132 is arranged in sending the abandonment carbon dust to useless powder delivery outlet 131, thereby dial the abandonment carbon dust in the first useless powder storehouse 13 and send to the useless powder storehouse 23 of second, useless powder derivation structure 132 can adopt the structure that is similar to the second and send powder subassembly 242, it is rotatory by the axis of rotation drive blade promptly, thereby stir abandonment carbon dust, no longer describe here.

The embodiment of the utility model provides a pair of developing box 1, including developing assembly 10 and storage powder subassembly 20, developing assembly 10 can be dismantled with storage powder subassembly 20 and be connected. The developing assembly 10 comprises a first powder bin 12, a first waste powder bin 13 and a developing unit 11, wherein the first powder bin 12 is used for supplying carbon powder to the developing unit 11, and the first waste powder bin 12 is used for receiving the waste carbon powder output by the developing unit 11; the powder storage assembly 20 comprises a shell 21, wherein a second powder bin 22 and a second waste powder bin 23 are arranged in the shell 21; the second powder bin 22 is communicated with the first powder bin 12 through a carbon powder output port 221, the second waste powder bin 23 is communicated with the first waste powder bin 13, so that carbon powder is supplemented to the first powder bin 12 through the second powder bin 22, waste carbon powder output by the first waste powder bin 13 is received through the second waste powder bin 23, the process of supplementing carbon powder is achieved through a powder feeding mechanism 24, conveying of waste carbon powder is achieved through a waste powder guiding mechanism 132, and a third powder bin 30 is further arranged on the side of the second powder bin 22 and used for supplementing carbon powder to the second powder bin 22. Therefore, the powder storage space of the developing cartridge 1 is increased, the powder storage capacity of the developing cartridge 1 is greatly improved, and the powder feeding capacity of the developing cartridge is also improved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A developing cartridge, characterized by comprising: the developing assembly is detachably connected with the powder storage assembly;

the developing assembly comprises a first powder bin, a first waste powder bin and a developing unit, wherein the first powder bin is used for supplying carbon powder to the developing unit, and the first waste powder bin is used for receiving the waste carbon powder output by the developing unit;

the powder storage assembly comprises a shell, a second powder bin and a second waste powder bin are arranged in the shell, the second powder bin is communicated with the first powder bin, the second waste powder bin is communicated with the first waste powder bin, and the height of the second powder bin in the vertical direction relative to the second waste powder bin is higher than the height of the first powder bin in the vertical direction relative to the second waste powder bin.

2. A developing cartridge according to claim 1, wherein said second waste toner hopper and said first waste toner hopper are located at heights matched with each other in a vertical direction.

3. A developer cartridge according to claim 1, wherein said second toner hopper has at least one toner outlet, a first end of said toner outlet communicating with said second toner hopper, and a second end of said toner outlet extending through said second waste toner hopper and communicating with said first toner hopper.

4. A developing cartridge according to claim 3, wherein a first end of said toner outlet communicates with a bottom wall of said second toner hopper, and a second end of said toner outlet projects downward to communicate with said first toner hopper.

5. A developing cartridge according to any one of claims 1-4, wherein said casing includes a first casing, a second casing and a third casing, said first casing and said second casing together enclosing a hollow cavity, said third casing being disposed within said hollow cavity and dividing said hollow cavity into said second powder hopper and said second waste powder hopper.

6. A developing cartridge according to any one of claims 1 to 4, wherein said first waste toner hopper has at least one waste toner outlet, and said second waste toner hopper has at least one waste toner inlet provided in correspondence with said waste toner outlet to communicate said second waste toner hopper with said first waste toner hopper.

7. A developing cartridge according to claim 3, wherein a powder feeding mechanism is provided in said second powder hopper, said powder feeding mechanism being adapted to feed the toner in said second powder hopper to said toner outlet.

8. The developing cartridge according to claim 7, wherein the powder feeding mechanism includes a first powder feeding assembly and a second powder feeding assembly, the first powder feeding assembly includes two first rotating shafts arranged in parallel and a conveyor belt wound around the two first rotating shafts, a first end of the conveyor belt extends into the second powder hopper, a second end of the conveyor belt extends toward the toner output port, and a conveying direction of the conveyor belt is directed toward the toner output port;

the second powder feeding assembly comprises a second rotating shaft and blades connected to the second rotating shaft, and the blades can be driven by the second rotating shaft to rotate so as to stir the carbon powder to the first powder feeding assembly.

9. A developing cartridge according to claim 8, further comprising a third powder hopper provided at a side of said second powder hopper, said third powder hopper communicating with said second powder hopper, said third powder hopper having a toner adding port communicating with an outside of said housing;

the second rotating shaft extends into the third powder bin, the second rotating shaft is provided with a helical blade, and the helical blade is located in the third powder bin and used for conveying the carbon powder added in the third powder bin into the second powder bin under the driving of the second rotating shaft.

10. A developing cartridge according to claim 8, further comprising a driving unit mounted on said powder storage assembly, said driving unit being for driving said powder feeding mechanism;

the driving unit comprises a first gear, a second gear and a third gear, the first gear is connected with the second gear through a synchronous belt and used for driving the first powder feeding assembly to rotate, the second gear is meshed with the third gear, and the third gear is used for driving the second powder feeding assembly to rotate.

11. The developing cartridge according to claim 6, wherein a waste toner discharging mechanism is provided in the first waste toner hopper, and the waste toner discharging mechanism is configured to send waste toner to the waste toner outlet.