CN212181258U - Processing box - Google Patents
Processing box Download PDFInfo
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- CN212181258U CN212181258U CN202020760637.1U CN202020760637U CN212181258U CN 212181258 U CN212181258 U CN 212181258U CN 202020760637 U CN202020760637 U CN 202020760637U CN 212181258 U CN212181258 U CN 212181258U
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- powder bin
- pin
- driving end
- photosensitive drum
- end cover
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Abstract
The utility model relates to a processing box, which comprises a waste powder bin and a powder bin which are mutually combined through pins, wherein the waste powder bin comprises a waste powder bin shell, a photosensitive drum which is rotatably arranged in the waste powder bin shell, and a photosensitive drum gear which is positioned at one longitudinal end of the photosensitive drum; the powder bin comprises a powder bin shell, a developing roller which is rotatably arranged in the powder bin shell, and a developing roller gear which is positioned at one longitudinal tail end of the developing roller and is meshed with the photosensitive drum gear; the photosensitive drum and the developing roller are oppositely arranged, the side where the photosensitive drum gear and the developing roller gear are located is a driving end, the opposite side of the driving end is a non-driving end, the first end cover and the third end cover are located at the non-driving end, and the second end cover and the fourth end cover are located at the driving end; one of the non-driving end of the powder bin and the non-driving end of the waste powder bin is tightly fitted with the pin, and the other is loosely fitted with the pin, so that even if the driving end of the process cartridge is jumped, the gear line can be effectively restrained.
Description
Technical Field
The utility model relates to a laser printing field especially relates to a detachably installs processing box in laser printer.
Background
Generally, a process cartridge has rotatably mounted therein a photosensitive drum for forming an electrostatic latent image and a developing roller opposed to the photosensitive drum and supplying toner to the photosensitive drum to develop the electrostatic latent image, while gears for receiving a driving force are provided at longitudinal ends of the photosensitive drum and the developing roller. In the laser printer, only one power output portion is provided, and one of the photosensitive drum gear and the developing roller gear is combined with the power output portion, and the photosensitive drum gear and the developing roller gear are disposed on the same side of the process cartridge in an intermeshing manner, and when one of them receives a driving force, the other gear is also driven.
In practical use, the driving force output by the power output part in the printer may fluctuate briefly, and when the fluctuation is transmitted to the photosensitive drum gear or the developing roller gear, the photosensitive drum gear and the developing roller gear jump correspondingly, and the fluctuation is reflected on an imaging medium, namely, the defect of gear lines on one side of the imaging medium corresponding to the photosensitive drum gear and the developing roller gear.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a to current processing box structure improve, when appearing beating between sensitization drum gear and the developing roller gear, this structure can effectively restrain the production of gear line, and is concrete, the utility model discloses a following technical scheme:
a processing box comprises a waste powder bin and a powder bin which are mutually combined through a pin, wherein the powder bin and the waste powder bin can rotate around the pin, and the waste powder bin comprises a waste powder bin shell, a first end cover and a second end cover which are respectively positioned at two longitudinal tail ends of the waste powder bin shell, a photosensitive drum which is rotatably supported by the first end cover and the second end cover, and a photosensitive drum gear which is positioned at one longitudinal tail end of the photosensitive drum; the powder bin comprises a powder bin shell, a third end cover, a fourth end cover, a developing roller and a developing roller gear, wherein the third end cover and the fourth end cover are respectively positioned at two longitudinal tail ends of the powder bin shell; the photosensitive drum and the developing roller are oppositely arranged, the side where the photosensitive drum gear and the developing roller gear are located is a driving end, the opposite side of the driving end is a non-driving end, the first end cover and the third end cover are located at the non-driving end, and the second end cover and the fourth end cover are located at the driving end; one of the non-driving end of the powder bin and the non-driving end of the waste powder bin is tightly matched with the pin, and the other one of the non-driving end of the powder bin and the non-driving end of the waste powder bin is loosely matched with the pin.
At the non-drive end, the pin is inserted into the first end cap and the third end cap, and at the drive end, the pin is inserted into the second end cap and the fourth end cap.
The non-driving end of the powder bin and the non-driving end of the waste powder bin are provided with mounting holes which are in loose fit with the pins, the size of each mounting hole is larger than that of each pin, and preferably, the pins are located in the middle of the mounting holes.
Preferably, the mounting hole is elongated, and a straight line along which the mounting hole extends is parallel to a line connecting the center of the photosensitive drum and the center of the developing roller.
The mounting hole comprises a first part, a second part and a third part, wherein the second part is positioned between the first part and the third part, the size of the first part and the size of the third part are both larger than that of the pin, and the size of the second part is the same as that of the pin or the size of the second part is slightly larger than that of the pin.
As described above, by setting one of the non-driving end of the powder hopper and the non-driving end of the waste powder hopper to be tightly fitted with the pin and the other to be loosely fitted with the pin, the gear line can be effectively suppressed even if the driving end of the process cartridge is jumped.
Drawings
Fig. 1 is a perspective view of a process cartridge according to an embodiment of the present invention.
Fig. 2 is a perspective view of the process cartridge according to the first embodiment of the present invention, as viewed from another angle.
Fig. 3 is an exploded view of a part of a non-driving end of a process cartridge according to an embodiment of the present invention.
Fig. 4 is a cross-sectional view of a non-driving end of a process cartridge according to an embodiment of the present invention, which is cut in a direction perpendicular to a pin mounting direction and through a waste powder bin mounting hole.
Fig. 5 is a side view of a processing cartridge according to an embodiment of the present invention after hiding a non-driving-end cap of a dust bin.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[ example one ]
Fig. 1 is a perspective view of a process cartridge according to an embodiment of the present invention; fig. 2 is a perspective view of the process cartridge according to the first embodiment of the present invention, as viewed from another angle.
The process cartridge C includes the waste powder hopper 100 and the powder hopper 200 coupled to each other by the pin 400, and the elastic member 300 between the powder hopper 200 and the waste powder hopper 100, so that the waste powder hopper 100 and the powder hopper 200 can rotate about the pin 400; the waste powder bin 100 comprises a waste powder bin housing 11, a first end cover 12 and a second end cover 13 respectively positioned at two longitudinal ends of the waste powder bin housing 11, a photosensitive drum 14 rotatably installed in the waste powder bin housing 11 and supported by the first end cover 12 and the second end cover 13, and a photosensitive drum gear 15 positioned at one longitudinal end of the photosensitive drum 14; the powder hopper 200 includes a powder hopper housing 21, a third end cap 22 and a fourth end cap 23 respectively located at both longitudinal ends of the powder hopper housing 21, a developing roller 24 rotatably mounted in the powder hopper housing 21 and supported by the third end cap 22 and the fourth end cap 23, and a developing roller gear 25 located at one longitudinal end of the developing roller 24, the photosensitive drum 14 and the developing roller 24 being arranged oppositely; preferably, the first end cap 12 and the second end cap 13 are integrally formed with the waste powder bin housing 11, and the third end cap 22 and the fourth end cap 23 are detachably connected to the powder bin housing 21, respectively.
The photosensitive drum gear 15 and the developing roller gear 25 are used for receiving and transmitting a driving force, and thus, the side where the photosensitive drum gear 15 and the developing roller gear 25 are located is referred to as a driving end, the side where the photosensitive drum gear 15 and the developing roller gear 25 are not installed (the opposite side of the driving end) is referred to as a non-driving end, that is, the side where the second end cap 13 and the fourth end cap 23 are located is a driving end, and the side where the first end cap 12 and the third end cap 22 are located is a non-driving end. As shown, the pin 400 at the non-driving end is inserted into the first and third end caps 12 and 22, and the pin 400 at the driving end is inserted into the second and fourth end caps 13 and 23, so that the powder hopper 200 and the waste powder hopper 100 are coupled to each other.
The photosensitive drum 14 and the developing roller 24 are brought close to each other by the elastic member 300, the photosensitive drum gear 15 and the developing roller gear 25 are engaged with each other, and when the process cartridge C is detachably mounted to a printer provided with a power take-off, one of the photosensitive drum gear 15 and the developing roller gear 25 is engaged with the power take-off and rotated by receiving a driving force output from the power take-off, and finally, both the photosensitive drum 14 and the developing roller 24 are driven to rotate.
Further, the processing cartridge C further comprises a powder filling opening 26 disposed on the powder hopper housing 21 and a waste powder discharge opening 16 disposed on the waste powder hopper housing 11, when the carbon powder in the powder hopper 200 is consumed, the end user can replenish new carbon powder into the powder hopper 200 through the powder filling opening 26; similarly, when the waste bin 100 is filled with waste, the end user may discharge waste through the waste discharge outlet 16.
Further, both the powder filling port 26 and the waste powder discharge port 16 are disposed so as not to be shielded by other components of the process cartridge, so that the end user can more conveniently perform operations of replenishing new toner into the process cartridge or discharging waste powder.
Fig. 3 is a partially exploded view of a non-driving end of a process cartridge according to an embodiment of the present invention; fig. 4 is a sectional view of the non-driving end of the process cartridge according to an embodiment of the present invention, cut in a direction perpendicular to the pin mounting direction and through the waste toner receptacle mounting hole; fig. 5 is a side view of a processing cartridge according to an embodiment of the present invention after hiding a non-driving-end cap of a dust bin.
As shown in the figure, the waste powder bin 100 further includes a waste powder bin mounting hole 121 disposed on the first end cover 12, the powder bin 200 further includes a powder bin mounting hole 221 disposed on the third end cover 22, the powder bin mounting hole 221 is opposite to the waste powder bin mounting hole 121, the pin 400 passes through the powder bin mounting hole 221 and the waste powder bin mounting hole 121 to combine the third end cover 22 with the first end cover 12, wherein one of the powder bin mounting hole 221 and the waste powder bin mounting hole 121 is tightly fitted with the pin 400, and the other is loosely fitted with the pin 400, when the drive end of the processing box C jumps due to the meshing dislocation of the photosensitive drum gear 15 and the developing roller gear 25, the part of the processing box C not loosely fitted with the pin 400 will jump correspondingly to counteract the vibration force generated by the jump of the drive end, thereby ensuring the stable operation of the whole processing box C and eliminating the gear line.
Taking the non-driving-end waste powder bin mounting hole 121 and the pin 400 as an example, as shown in fig. 3 and 4, the non-driving-end waste powder bin mounting hole 121 is set to be larger than the size of the pin 400, the non-driving-end powder bin mounting hole 221 is set to be the same as or slightly smaller than the size of the pin 400, after the processing box C is assembled, the third end cap 22 is tightly fitted with the pin 400, the first end cap 12 is loosely fitted with the pin 400, when the driving end of the processing box C jumps, the vibration of the driving end is transmitted to the non-driving end, at this time, the waste powder bin 100 also jumps relative to the pin 400 along with the first end cap 12, so that the vibration force of the driving end is counteracted, the processing box C is smoothly operated, and the generation of the gear line is suppressed.
As shown in fig. 4, it is preferable that the pin 400 is located in the middle of the non-driving-end waste bin mounting hole 121, or the pin 400 is not located near the end of the non-driving-end waste bin mounting hole 121, so that the mounting hole 121 always provides a space for jumping regardless of the direction in which the waste bin 100 jumps.
The non-driving-end waste powder bin mounting hole 121 can be configured to be in various shapes such as a circle, a long strip, an ellipse and the like, as shown in fig. 5, preferably, the non-driving-end waste powder bin mounting hole 121 is configured to be in a long strip shape and comprises a first part 121a, a second part 121b and a third part 121c, wherein the second part 121b is located between the first part 121a and the third part 121c, the first part 121a and the third part 121c are both larger than the pin 400 in size, the second part 121b is the same as the pin 400 in size, or the second part 121b is slightly larger than the pin 400 in size; after the process cartridge C is assembled, the pin 400 is located at the second portion 121 b; more preferably, the straight line along which the mounting hole 121 extends is parallel to the line MN connecting the center M of the photosensitive drum and the center N of the developing roller, and this arrangement is advantageous in that the jumping direction of the waste toner hopper 100 is limited to the direction parallel to the line MN, and when the jumping ends, the position where the photosensitive drum 14 and the developing roller 24 are coupled again does not change, thereby improving the image forming effect of the process cartridge C.
[ example two ]
The above description has been given to the useless powder storehouse mounting hole 121 of non-drive end and pin 400 loose fit, and the embodiment of the useless powder storehouse mounting hole 221 of non-drive end and pin 400 close fit, as the replacement, when the useless powder storehouse mounting hole 221 of non-drive end and pin 400 close fit, when the useless powder storehouse mounting hole 121 of non-drive end and pin 400 loose fit, also can realize the utility model aims at the different time, the drive end is beated, and the vibration of drive end is transmitted to the non-drive end, and at this moment, powder storehouse 200 also appears beating for pin 400 along with third end cover 22, therefore, the vibrational force of drive end is offset, and processing box C can the even running, and the production of gear line is suppressed.
As described above, by changing the structure of the non-driving end of the existing process cartridge C, specifically, in such a manner that one of the mounting holes of the non-driving end of the powder hopper 200 and the non-driving end of the waste powder hopper 100, which is coupled to the pin, is disposed to be loosely fitted to the pin 400 and the other mounting hole is tightly fitted to the pin 400, when the pulsation/vibration occurring at the driving end is transmitted to the non-driving end, the pulsation/vibration also occurs at the non-driving end of the powder hopper 200 and the non-driving end of the waste powder hopper 100, which are loosely fitted to the pin 400, accordingly, the vibratory force at the driving end is offset, the process cartridge C is smoothly operated, and the generation of the gear line is.
Claims (6)
1. A processing box comprises a waste powder bin and a powder bin which are mutually combined through a pin, the powder bin and the waste powder bin can rotate around the pin,
the waste powder bin comprises a waste powder bin shell, a first end cover and a second end cover which are respectively positioned at two longitudinal tail ends of the waste powder bin shell, a photosensitive drum which is rotatably supported by the first end cover and the second end cover, and a photosensitive drum gear positioned at one longitudinal tail end of the photosensitive drum;
the powder bin comprises a powder bin shell, a third end cover, a fourth end cover, a developing roller and a developing roller gear, wherein the third end cover and the fourth end cover are respectively positioned at two longitudinal tail ends of the powder bin shell;
the photosensitive drum and the developing roller are oppositely arranged, the side where the photosensitive drum gear and the developing roller gear are located is a driving end, the opposite side of the driving end is a non-driving end, the first end cover and the third end cover are located at the non-driving end, and the second end cover and the fourth end cover are located at the driving end;
the powder bin is characterized in that one of the non-driving end of the powder bin and the non-driving end of the waste powder bin is tightly matched with the pin, and the other one of the non-driving end of the powder bin and the non-driving end of the waste powder bin is loosely matched with the pin.
2. A process cartridge according to claim 1, wherein at the non-driving end, the pin is inserted into the first and third end caps, and at the driving end, the pin is inserted into the second and fourth end caps.
3. A cartridge according to claim 1 or 2, wherein a non-driving end of the powder hopper and a non-driving end of the waste powder hopper are provided with mounting holes loosely fitted with the pins, and the size of the mounting holes is larger than that of the pins.
4. A cartridge according to claim 3, wherein the pin is provided at a middle portion of the mounting hole.
5. A process cartridge according to claim 4, wherein the mounting hole is elongated in a direction parallel to a line connecting the center of the photosensitive drum and the center of the developing roller.
6. A process cartridge according to claim 5, wherein the mounting hole includes a first portion, a second portion and a third portion, wherein the second portion is located between the first portion and the third portion, and wherein the first portion and the third portion each have a size larger than that of the pin, and wherein the second portion has a size equal to or slightly larger than that of the pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020760637.1U CN212181258U (en) | 2020-05-09 | 2020-05-09 | Processing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020760637.1U CN212181258U (en) | 2020-05-09 | 2020-05-09 | Processing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212181258U true CN212181258U (en) | 2020-12-18 |
Family
ID=73775433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020760637.1U Active CN212181258U (en) | 2020-05-09 | 2020-05-09 | Processing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212181258U (en) |
-
2020
- 2020-05-09 CN CN202020760637.1U patent/CN212181258U/en active Active
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