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CN-224232102-U - Developing box

CN224232102UCN 224232102 UCN224232102 UCN 224232102UCN-224232102-U

Abstract

The utility model discloses a developing box, and aims to provide a developing box which can avoid carbon powder accumulation, has good stirring effect and improves printing quality. The developing device comprises a box body, wherein a developing roller, a driving part, a first transmission assembly and a second transmission assembly are arranged in the box body, the driving part is in transmission connection with the first transmission assembly, the first transmission assembly comprises a plurality of first transmission gears which are in transmission connection in sequence, the second transmission assembly comprises a plurality of second transmission gears which are in transmission connection in sequence, one of the first transmission gears is connected with a first bevel gear, one of the second transmission gears is connected with a second bevel gear, the first bevel gear is in transmission connection with the second bevel gear, at least one of the second transmission gears is connected with a stirring shaft, the stirring shaft is provided with a stirring part, and the rotation axis of the developing roller is not parallel to the rotation axis of the stirring shaft. The utility model is applied to the technical field of image forming devices.

Inventors

  • HUANG JINGHONG
  • LI ZONGXUAN

Assignees

  • 珠海市拓佳科技有限公司

Dates

Publication Date
20260512
Application Date
20250618

Claims (9)

  1. 1. The developing box is characterized by comprising a box body (1), wherein a developing roller (2), a driving part (3), a first transmission assembly (5) and a second transmission assembly (6) are arranged in the box body (1), the driving part (3) is in transmission connection with the first transmission assembly (5), the first transmission assembly (5) comprises a plurality of first transmission gears (7) which are in transmission connection in sequence, the second transmission assembly (6) comprises a plurality of second transmission gears (8) which are in transmission connection in sequence, one of the first transmission gears (7) is connected with a first conical gear (9), one of the second transmission gears (8) is connected with a second conical gear (10), the first conical gear (9) is in transmission connection with the second conical gear (10), at least one of the second transmission gears (8) is connected with a stirring shaft (11), the stirring shaft (11) is provided with a stirring part (12), and the rotation axis of the developing roller (2) is not parallel to the rotation axis of the stirring shaft (11).
  2. 2. A developing cartridge according to claim 1, wherein the stirring shafts (11) are plural in number, and the stirring portion (12) is a stirring blade.
  3. 3. A developing cartridge according to claim 2, wherein said second transmission assembly (6) further comprises a plurality of third transmission gears (13), a plurality of said third transmission gears (13) being drivingly connected between a plurality of said second transmission gears (8), a plurality of bosses (15) being provided in said cartridge body (1), a plurality of said third transmission gears (13) being rotatably connected to a plurality of said bosses (15), respectively.
  4. 4. A developing cartridge according to claim 2 or 3, wherein a plurality of concave columns (18) are provided in said cartridge body (1), and the lower ends of said stirring shafts (11) are connected in the respective concave columns (18).
  5. 5. A developing cartridge according to claim 1, wherein a driven shaft (16) is provided in said cartridge body (1), and said stirring portion (12) is a stirring film drivingly connected to said stirring shaft (11) and said driven shaft (16).
  6. 6. A developing cartridge according to claim 5, wherein said stirring shaft (11) and said driven shaft (16) are each provided with a fixing boss (17) for fixing the stirring film.
  7. 7. A developing cartridge according to claim 5 or 6, wherein a plurality of concave columns (18) are provided in said cartridge body (1), and lower ends of said stirring shaft (11) and said driven shaft (16) are connected in the respective concave columns (18).
  8. 8. A developing cartridge according to claim 1, wherein the driving part (3) comprises a power receiving part (19), a first driving gear (20) and a second driving gear (21) which are coaxially connected, a powder feeding roller (22) is arranged in the cartridge body (1), the powder feeding roller (22) is connected with a powder feeding gear (23), the developing roller (2) is connected with a developing gear (25), the powder feeding gear (23) and the first driving assembly (5) are in driving connection with the first driving gear (20), and the developing gear (25) is in driving connection with the second driving gear (21).
  9. 9. A developing cartridge according to claim 8, wherein said cartridge body (1) comprises a bottom case (26) and an upper cover (27), said upper cover (27) is covered on said bottom case (26), said first transmission member (5) and said second transmission member (6) are respectively provided on a side end of said bottom case (26) and said upper cover (27), said upper cover (27) is provided with a first gear cover (28), said first gear cover (28) is covered on said second transmission member (6), a side end of said bottom case (26) is provided with a second gear cover (29), and said second gear cover (29) is covered on said first transmission member (5).

Description

Developing box Technical Field The present utility model relates to the field of image forming apparatuses, and more particularly, to a developing cartridge. Background In the laser printing field, a developing cartridge plays a vital role as an important part of an image forming apparatus. Be equipped with the developing roller in the developing box among the prior art and supply with the powder storehouse of carbon dust, be provided with the stirring frame in the powder storehouse, the stirring direction of stirring frame is unanimous with the axis direction of rotation of developing roller, easily causes the stirring frame to stir the carbon dust inhomogeneous, leads to the carbon dust to gather easily, has the stirring effect not good and the condition of reduction printing quality. Disclosure of utility model The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing the developing box which can avoid carbon powder accumulation, has good stirring effect and improves printing quality. The developing device comprises a box body, wherein a developing roller, a driving part, a first transmission assembly and a second transmission assembly are arranged in the box body, the driving part is in transmission connection with the first transmission assembly, the first transmission assembly comprises a plurality of first transmission gears which are in transmission connection in sequence, the second transmission assembly comprises a plurality of second transmission gears which are in transmission connection in sequence, one of the first transmission gears is connected with a first conical gear, one of the second transmission gears is connected with a second conical gear, the first conical gear is in transmission connection with the second conical gear, at least one of the second transmission gears is connected with a stirring shaft, the stirring shaft is provided with a stirring part, and the rotation axis of the developing roller is not parallel to the rotation axis of the stirring shaft. Further, the stirring shafts are multiple in number, and the stirring parts are stirring blades. Further, the second transmission assembly further comprises a plurality of third transmission gears, the third transmission gears are connected among the second transmission gears in a transmission mode, a plurality of convex columns are arranged in the box body, and the third transmission gears are respectively connected to the convex columns in a rotating mode. Further, a plurality of concave columns are arranged in the box body, and the lower ends of the stirring shafts are connected in the corresponding concave columns. Further, a driven shaft is arranged in the box body, and the stirring part is a stirring film which is connected with the stirring shaft and the driven shaft in a transmission way. Further, the stirring shaft and the driven shaft are provided with fixing bosses for fixing the stirring membrane. Further, a plurality of concave columns are arranged in the box body, and the lower ends of the stirring shaft and the driven shaft are connected in the corresponding concave columns. Further, the drive part comprises a power receiving part, a first drive gear and a second drive gear which are coaxially connected, a powder feeding roller is arranged in the box body, the powder feeding roller is connected with a powder feeding gear, the developing roller is connected with a developing gear, the powder feeding gear and the first transmission component are in transmission connection with the first drive gear, and the developing gear is in transmission connection with the second drive gear. Further, the box body comprises a bottom shell and an upper cover, wherein the upper cover is covered on the bottom shell, the first transmission assembly and the second transmission assembly are respectively positioned at the side end of the bottom shell and the upper cover, the upper cover is provided with a first gear cover, the first gear cover is covered on the second transmission assembly, the side end of the bottom shell is provided with a second gear cover, and the second gear cover is covered on the first transmission assembly. The beneficial effects of the utility model are as follows: compared with the defects in the prior art, in the utility model, as the first transmission assembly and the second transmission assembly are in transmission connection through the first bevel gear and the second bevel gear, the rotation axis of the developing roller can be non-parallel to the rotation axis of the stirring shaft, and therefore, the stirring part can stir the carbon powder more uniformly through the arrangement of the rotation axis of the stirring shaft which is non-parallel to the rotation axis of the developing roller, the carbon powder is not easy to agglomerate, and the printing quality is improved, so that the utility model has the advantages of avoiding carbon powder accumulati