CN217060763U

CN217060763U - Toner cartridge

Info

Publication number: CN217060763U
Application number: CN202220782289.7U
Authority: CN
Inventors: 潘宏
Original assignee: De Yuan Images Science And Technology Ltd Of Zhongshan City
Current assignee: De Yuan Images Science And Technology Ltd Of Zhongshan City
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-07-26
Anticipated expiration: 2032-04-06

Abstract

The utility model provides a toner cartridge, toner cartridge includes the casing that can save the powdered ink and rotatably installs the developer roll at the casing, the developer roll can supply the powdered ink to the outside, toner cartridge still includes the drive power receiving piece and the drive end cover that set up at a longitudinal end, drive power receiving piece exposes from the drive end cover for receive external drive power; the developing roller includes a metal shaft extending in a longitudinal direction thereof; the toner cartridge further comprises a developing roller gear mounted on the metal shaft, and the developing roller gear receives the driving force of the driving force receiving member and drives the developing roller to rotate; along the central line of developer roll, metal axle and drive end cover separation, developer roll gear and drive end cover butt, the utility model discloses a shorten the metal axle, make metal axle and drive end cover separation, that is to say, the metal axle needn't extend to the drive end cover, can reduce the resistance that receives when the developer roll is rotatory, reduces the degree of wear and material cost of metal axle.

Description

Toner cartridge

Technical Field

The utility model relates to an electronic imaging field especially relates to a detachably installs the toner cartridge in electronic imaging equipment.

Background

There is a toner cartridge detachably mountable to an electronic image forming apparatus (hereinafter referred to as "apparatus") including a housing capable of storing toner and a developing roller rotatably mounted on the housing for supplying the toner to an outside.

The toner cartridge further comprises a conductive piece and a support at one longitudinal end, and a driving force receiving piece and a driving end cover at the other longitudinal end, wherein the conductive piece is used for receiving electric power provided by the equipment and supplying the electric power to the developing roller, the support can support the developing roller, the driving end cover can protect the driving force receiving piece, and the driving force receiving piece is used for transmitting the driving force provided by the equipment to the developing roller to enable the developing roller to rotate.

The developing box also comprises a counting tooth positioned in the developing box, and the counting tooth is used for abutting against a counting part of the equipment so as to enable the equipment to know the new and old toner box, the toner quantity, the printing quantity and the like.

SUMMERY OF THE UTILITY MODEL

The developing roller shaft of current toner cartridge at drive force receiving part place one end is longer, and at the rotation axis direction of developer roll, developing roller shaft and drive end cover butt, the developer roll shaft of overlength can lead to the developer roll to receive great resistance when rotatory, makes developing roller shaft wearing and tearing serious, has increased the material cost of developing roller shaft.

The utility model provides a toner cartridge to solve the technical problem that the resistance is great and easy wearing and tearing when developer roll axle overlength leads to the developer roll rotatory, concrete scheme is:

a toner cartridge including a housing capable of storing toner and a developing roller rotatably mounted in the housing, the developing roller being capable of supplying the toner to the outside, the toner cartridge further including a driving force receiver disposed at one longitudinal end and a driving cap, the driving force receiver being exposed from the driving cap for receiving an external driving force; the developing roller includes a metal shaft extending in a longitudinal direction thereof; the toner cartridge further comprises a developing roller gear mounted on the metal shaft, and the developing roller gear receives the driving force of the driving force receiving member and drives the developing roller to rotate; along the central line of the developing roller, the metal shaft is separated from the driving end cover, and the developing roller gear is abutted to the driving end cover.

The end face of the developing roller gear is provided with a flange.

The drive end cap is provided with a groove that engages the flange.

The groove is recessed from the side of the drive end cap facing the housing to the side away from the housing.

The toner cartridge further includes a conductive member and a holder provided at the other longitudinal end, the metal shaft passes through the holder and the conductive member, and the conductive member is configured to supply power to the metal shaft.

The conductive member is in contact with an outer circumferential surface of the metal shaft.

As described above, the toner cartridge according to the present invention separates the metal shaft from the driving end cap by shortening the metal shaft, that is, the metal shaft does not have to extend to the driving end cap, and thus the resistance to the rotation of the developing roller can be reduced, and the degree of wear and the material cost of the metal shaft can be reduced.

Drawings

Fig. 1-3 are perspective views of toner cartridges according to the present invention.

Figure 4A is a partially exploded view of the drive end of a toner cartridge in accordance with the present invention.

Fig. 4B is a perspective view of the developing roller gear according to the present invention.

Fig. 4C is a perspective view of the drive end cap according to the present invention.

Fig. 5 is a partially exploded view of the conductive end of the toner cartridge of the present invention.

Fig. 6A to 6C are schematic views of a counting tooth according to the present invention.

Fig. 7A is a schematic view of the initial state of the counting teeth according to the present invention during counting.

Fig. 7B is a schematic view of the intermediate state of the counting teeth according to the present invention during counting.

Fig. 7C is a schematic view of the state of the counting teeth at the end of counting according to the present invention.

Fig. 7D is a schematic view of the counting teeth and the gear of the stirring rack when the counting is finished.

Fig. 8 is a schematic view of the second end portion of the housing according to the present invention.

Fig. 9 is a schematic diagram of the relative position between the counting teeth and the cantilever after the counting of the counting teeth of the present invention is completed.

Detailed Description

For convenience of description, the toner cartridge 100 is placed in a left-right direction, the toner cartridge 100 is placed in a front-back direction, and the toner cartridge 100 is placed in a height direction; toner cartridge 100 is mounted rearward in the front-rear direction and removed forward.

As shown in fig. 1 to 3, the toner cartridge 100 includes a housing 10 that stores toner, a developing roller 17 rotatably mounted to the housing 10, a powder feeding roller (not shown) for feeding the toner stored in the housing 10 to the developing roller 17, an agitating frame (not shown) for supplying the toner to the photosensitive drum (not shown) to develop an electrostatic latent image on the surface of the photosensitive drum, and a powder discharging blade 16 mounted to the housing 10, the developing roller 17 having a center line C, the powder discharging blade 16 being in contact with the developing roller 17 to make the toner distribution on the surface of the developing roller 17 uniform. In the front-rear direction, the developing roller 17 is located at the rear end of the toner cartridge 100.

The housing 10 includes a first housing 11 and a second housing 12 coupled to each other, and a first end portion 13 and a second end portion 14 disposed opposite to each other in a left-right direction/longitudinal end, the first end portion 13 being on a side for receiving power from the device, the second end portion 14 being on a side for receiving driving force from the device, the first housing 11 and the second housing 12 may be coupled by thermal welding, a space formed by the coupling of the first housing 11 and the second housing 12 is used for storing toner, the first housing 11 includes an upper cover plate 111 and a front side plate 112 integrally formed, the upper cover plate 111 is located downstream of the front side plate 112 in a mounting direction of the toner cartridge 100, and both the upper cover plate 111 and the front side plate 112 are flat surfaces and are not provided with grooves, so that a volume of the toner cartridge 100 may be increased, a storage amount of toner may be increased, and a life cycle of the toner cartridge 100 may be extended. When viewed from right to left, the upper cover plate 111 extends upward gradually from back to front, while the upper cover plate 111 extends in the left-right direction, and the front side plate 112 extends in a direction perpendicular to the front-rear direction; the first and

second tip portions

13 and 14 are formed integrally/separately with the housing 10 for supporting the developing roller 17, the powder feed roller, and the agitating frame.

The developing cartridge 100 further includes a handle 15 coupled to the housing 10, and specifically, the handle 15 is formed integrally/separately with the first housing 11, the handle 15 is plate-shaped, extends in a direction perpendicular to the left-right direction, and includes an upper end 151 and a lower end 152 opposite in the up-down direction, when viewed from right to left, the upper end 151 is arc-shaped, that is, the upper end 151 is not parallel to a plane in which the front-back direction and the left-right direction are located, the lower end 152 is parallel to a plane in which the front-back direction and the left-right direction are located, and the handle 15 is used for mounting and dismounting the developing cartridge 100; the left and right ends of the handle 15 are also uniformly provided with ribs 153, and the ribs 153 can increase the friction force between the operator's hand and the handle 15, facilitating the mounting/dismounting of the developing cartridge 100. The handle 15 may be provided in one or more, two in this embodiment, and is respectively located at the left and right ends of the first casing 11, so that the toner cartridge 100 can be held in balance.

The developing cartridge 100 further includes a driving force receiving member 21 and a driving end cap 22 provided on the same side as the second end portion 14, and a conductive member 31 and a bracket 32 provided on the same side as the first end portion 13; the driving force receiving member 21 is exposed from the driving end cap 22 for transmitting the driving force supplied from the apparatus to drive the developing roller 17, the powder feeding roller and the agitating frame to rotate, and the driving end cap 22 is snap-fittingly mounted to the housing 10 for protecting the driving force receiving member 21 and other components; the bracket 32 may be snap-fitted to the casing 10 to allow the developing roller 17 to pass therethrough and support the developing roller 17, and the conductive member 31 may be snap-fitted/screw-fitted to the bracket 32 for supplying power supplied from the apparatus to the developing roller 17. For convenience of description, the side where driving force receiving member 21 is located may be referred to as driving end 20, and the side where conductive member 31 is located may be referred to as conductive end 30.

Fig. 4A is a partially exploded view of the driving end of the toner cartridge according to the present invention, fig. 4B is a perspective view of the developing roller gear according to the present invention, fig. 4C is a perspective view of the driving end cap according to the present invention, and fig. 5 is a partially exploded view of the conductive end of the toner cartridge according to the present invention.

As shown in fig. 4A to 5, the developing roller 17 includes a metal shaft 18 extending in the longitudinal direction, the driving end 20 is further provided with a support cover 23, the support cover 23 is provided with a support hole 231, and on the driving end 20 side, the metal shaft 18 passes through the second distal end portion 14 and the support hole 231 and is supported by the support hole 231.

The driving end 20 is also provided with a gear assembly (not shown) engaged with each other for transmitting the driving force supplied from the apparatus, including a driving gear 24 integrated with the driving force receiving member 21, a developing roller gear 25 and a powder feeding roller gear 26 engaged with the driving gear 24, and an intermediate gear 27, an agitating frame gear 28 engaged with the intermediate gear 27 (as shown in fig. 7A), and a counter gear 40 engaged with the agitating frame gear 28.

The developing roller gear 25 is mounted on the metal shaft 18, a flange 251 is disposed on a right side (a side away from the housing 10) end surface of the developing roller gear 25, the flange 251 can protect the metal shaft 18, a notch 252 is disposed on the flange 251, the notch 252 can be used for adding lubricating oil to prevent the developing roller gear 25 from being stuck with the metal shaft 18, the powder feeding roller gear 26 is mounted at a terminal end of a powder feeding roller shaft (not shown), the stirring frame gear 28 is mounted at a terminal end of the stirring frame shaft 19, a first mounting column 141 and a second mounting column 142 are disposed on the second terminal portion 14, the first mounting column 141 and the second mounting column 142 extend from the second terminal portion 14 in a left-right direction, the intermediate gear 27 is mounted on the first mounting column 141, and the counter teeth 40 are mounted on the second mounting column 142.

The driving force receiving member 21 transmits the driving force to the developing roller gear 25, the powder feeding roller gear 26 and the intermediate gear 27 through the driving gear 24 to drive the developing roller 17, the powder feeding roller and the intermediate gear 27 to rotate, the intermediate gear 27 then transmits the driving force to the stirring frame gear 28 to drive the stirring frame to rotate, and finally the stirring frame gear 28 transmits the driving force to the counting teeth 40 to drive the counting teeth 40 to rotate, so that the stirring frame gear 28 can also be referred to as a driving force transmitting member; the counting teeth 40 are combined with a counting part in the apparatus, and the counting part operates along with the rotation of the counting teeth 40, so that the apparatus knows the condition of the developing cartridge 100.

The driving end cover 22 is integrally formed and is provided with an opening 221 and a groove 222 arranged adjacent to the opening 221, the groove 222 is recessed from one side of the driving end cover 22 facing the shell 10 to one side far away from the shell 10, the driving force receiving member 21 is exposed from the opening 221, the groove 222 is matched with a flange 251 on the right end face of the developing roller gear 25, the developing roller gear 25 can be fixed, the developing roller gear 25 is prevented from moving along the axial direction of the metal shaft 18, the transmission of the gear assembly is more stable, meanwhile, the tail end of the developing roller 17 can be positioned, and the mounting stability of the developing roller 17 is improved; the utility model discloses in, metal axle 18 can shorten at the length of drive end 20, that is to say, metal axle 18 need not extend to drive end cover 22 all the time, along central line C, and metal axle 18 and the separation of drive end cover 22 not only can reduce the material cost of metal axle 18, still can reduce the resistance that developer roll 17 received in rotatory process.

On the conductive terminal 30 side, the conductive member 31 is provided with a cylinder 311, the holder 32 is provided with a through hole 321, the cylinder 311 is disposed corresponding to the position of the through hole 321 in the left-right direction, the metal shaft 18 passes through and contacts the cylinder 311 while the metal shaft 18 passes through and is supported by the through hole 321, the conductive member 31 supplies power to the developing roller 17 through the cylinder 311, the cylinder 311 contacts the outer circumferential surface of the metal shaft 18, the surface area of the metal shaft 18 receiving the power is larger, and thus, the conductive member 31 can supply power to the developing roller 17 better, and the holder 32 is made of an insulating material.

Fig. 6A-6C are schematic views of the counting teeth according to the present invention, fig. 7A is a schematic view of the initial state of the counting teeth during counting, fig. 7B is a schematic view of the intermediate state of the counting teeth during counting, fig. 7C is a schematic view of the state of the counting teeth at the end of counting, and fig. 7D is a schematic view of the state of the counting teeth and the stirring rack gear at the end of counting according to the present invention.

As shown in fig. 6A to 7D, the counter tooth 40 is integrally formed, and includes a central shaft 49, and a pressing portion 41 and an auxiliary portion 42 which are arranged along a circumferential direction of the central shaft 49, a center of the auxiliary portion 42 is different from a center of the pressing portion 41, and the auxiliary portion 42 and the pressing portion 41 are connected in the circumferential direction of the central shaft 49, specifically, the auxiliary portion 42 is an extension plate arranged along the circumferential direction of the central shaft 49. The pressing portion 41 interacts with a counting portion in the device when the toner cartridge 100 is in operation, and when the counting is completed, the pressing portion 41 abuts against the counting portion and is required to be kept in an abutting state all the time. The provision of the auxiliary portion 42 helps to ensure that the counting portion is in an abutted state, for example, when the pressing portion 41 is slightly shifted from the position of the pressing portion 41 due to shaking of the apparatus so that the pressing portion 41 is out of abutment with the counting portion, the auxiliary portion 42 can replace the pressing portion 41 to be kept in abutment with the counting portion, particularly, the counting teeth 40 are located on the same side as the driving force receiving member 21, and the counting teeth 40 are inevitably affected by vibration generated when the driving force receiving member 21 rotates during the process of receiving and transmitting the driving force by the driving force receiving member 21, however, even if the counting teeth 40 are affected by the vibration, the auxiliary portion 42 can ensure that the counting portion is in an abutted state, and thus, the counting accuracy of the counting teeth 40 can be improved.

One end of the counting gear 40 is provided with a mounting portion 45, the mounting portion 45 is matched with a second mounting column 142 (shown in fig. 4A), a gear portion 43 is arranged along the outer circumferential surface of the mounting portion 45/a central shaft 49, the gear portion 43 is arranged in a staggered manner with the pressing portion 41 along the rotation axis of the counting gear 40, the gear portion 43 is meshed with/opposite to the stirring rack gear 28 to receive driving force, the gear portion 43 comprises a head portion 431 and a tail portion 432 which are separated from each other and a plurality of teeth which are arranged between the head portion 431 and the tail portion 432, wherein a tooth missing portion 44 is arranged between the tail portion 432 and the teeth, and when counting is completed, the tooth missing portion 44 is opposite to the stirring rack gear 28 to stop the rotation of the counting gear 40.

When the toner cartridge 100 is mounted to the apparatus and counting is started, the head 431 approaches the agitator gear 28 and the counting teeth 40 are in the initial state; during counting, the gear part 43/tooth is opposite to the stirring rack gear 28, and the counting tooth 40 is in a middle state; when the counting is completed, the tail part 432 approaches the stirring rack gear 28, the tooth-missing part 44 is opposite to the stirring rack gear 28, and the counting teeth 40 are in the ending state. When viewed from right to left, the counting teeth 40 rotate in the N direction, completing the counting.

When viewed along the rotation axis of the counter tooth 40, the diameter D1 of the addendum circle of the end tooth 433 is smaller than the diameter D2 of the addendum circle of the other tooth, so that the friction between the gear 28 of the stirring rack and the counter tooth 40 after the counting is completed can be prevented from generating abnormal noise, and the noise can be reduced.

Fig. 8 is a schematic view of a second end portion of the housing according to the present invention, and fig. 9 is a schematic view of a relative position between the counter teeth and the cantilever after the counter teeth count.

As shown in fig. 8 and 9, the second tip portion 14 is provided with a cantilever 50 at the drive end 20 side, the cantilever 50 is arranged to swing substantially in the longitudinal direction and is close to the second mounting post 142, and the counting teeth 40 abut against the cantilever 50 before the counting of the counting teeth 40 starts, i.e., in an initial state; one end of the cantilever 50 is coupled to the second end portion 14, and the other end is suspended and provided with a stopper 51. Because the cantilever 50 can elastically deform, when the counting tooth 40 collides with the cantilever 50 during transportation or due to careless falling, the counting tooth 40 can act along with the elastic deformation of the cantilever 50, and a part of force between the counting tooth 40 and the stop 51 is offset, so that the counting tooth 40 can be prevented from being damaged due to collision.

Furthermore, when the counting tooth 40 is in the initial state (as shown in fig. 7A), the tail 432 abuts against the stopper 51, the stopper 51 can prevent the counting tooth 40 from being reversed (in the direction opposite to the N direction) under the action of external force, when the counting tooth 40 is in the final state, the head 431 is close to the stopper 51, and the stopper 51 can limit the counting tooth 40 which finishes counting to continue to rotate under the action of external force, so that the stability of the counting tooth 40 is maintained.

When the counting tooth 40 needs to be reset, only the driving force needs to be applied to the counting tooth 40, so that the counting tooth 40 passes over the stop block 51 until the tail part 432 abuts against the stop block 51 again, in the process, the cantilever 50 is elastically deformed and moves towards the direction close to the housing 10, and when the tail part 432 passes over the stop block 51, the cantilever 50 is reset under the action of the elastic resetting force, so that the tail part 432 abuts against the stop block 51.

The utility model discloses a shorten metal axle 18, make metal axle 18 and the separation of drive end cover 22, that is to say, metal axle 18 need not extend to drive end cover 22, can reduce the resistance that receives when developer roll 17 is rotatory, reduces the degree of wear and the material cost of metal axle 18.

Claims

1. A toner cartridge including a housing capable of storing toner and a developing roller rotatably mounted in the housing, the developing roller being capable of supplying the toner to the outside, the toner cartridge further including a driving force receiver disposed at one longitudinal end and a driving cap, the driving force receiver being exposed from the driving cap for receiving an external driving force;

the developing roller includes a metal shaft extending in a longitudinal direction thereof;

the toner cartridge also comprises a developing roller gear arranged on the metal shaft, and the developing roller gear receives the driving force of the driving force receiving piece so as to drive the developing roller to rotate;

it is characterized in that the method is characterized in that,

along the central line of the developing roller, the metal shaft is separated from the driving end cover, and the developing roller gear is abutted to the driving end cover.

2. The toner cartridge of claim 1, wherein an end surface of the developer roller gear is provided with a flange.

3. The toner cartridge of claim 2, wherein the drive end cap is provided with a groove that engages the flange.

4. The toner cartridge of claim 3, wherein the recess is recessed from a side of the drive end cap facing the housing to a side away from the housing.

5. The toner cartridge of any one of claims 1-4, further comprising a conductive member and a bracket disposed at the other longitudinal end, the metal shaft passing through the bracket and the conductive member, the conductive member for providing power to the metal shaft.

6. The toner cartridge of claim 5, wherein the conductive member contacts an outer circumferential surface of the metal shaft.