CN215006255U - Separating mechanism and processing box - Google Patents
Separating mechanism and processing box Download PDFInfo
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- CN215006255U CN215006255U CN202121633902.0U CN202121633902U CN215006255U CN 215006255 U CN215006255 U CN 215006255U CN 202121633902 U CN202121633902 U CN 202121633902U CN 215006255 U CN215006255 U CN 215006255U
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- force
- separating mechanism
- separating
- guide portion
- mounting groove
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Abstract
The utility model relates to a separating mechanism and a processing box with the separating mechanism, the separating mechanism is used for receiving separating force from the outside to force a powder bin to move relative to a waste powder bin, the separating mechanism comprises a fixing part and an acting part, the fixing part is fixedly connected with the waste powder bin, and the acting part comprises a stress part used for receiving the separating force and a rear guide part connected with the stress part; when the force-bearing part receives the separating force, the rear guide part moves in the front-rear direction in the mounting groove arranged on the fixing part, the separating mechanism is simple and convenient to mount, the mounting time of the separating mechanism is not limited, and the freedom degree of the assembling process of the processing box is improved.
Description
Technical Field
The present invention relates to an electrophotographic image forming apparatus, and more particularly to a separating mechanism detachably mountable to a process cartridge and a process cartridge provided in the process cartridge.
Background
As is known, a conventional process cartridge is provided with a photosensitive drum for carrying an electrostatic latent image and a developing roller for supplying toner to the photosensitive drum, the developing roller is in contact with the photosensitive drum when the process cartridge is in operation, and in order to prevent surface deformation of the developing roller and the photosensitive drum due to long-term contact when the process cartridge is not in operation, a separating mechanism is provided in the conventional process cartridge, and a force applying member in an electrophotographic image forming apparatus is used to apply a separating force to the separating mechanism, thereby forcing the developing roller to separate from the photosensitive drum.
In order to stably mount the separating mechanism on the processing box, the conventional separating mechanism is limited by the structure of the processing box, either by a fastening manner of a buckle or a fastening manner of a screw or other complicated fixing manners, and the conventional separating mechanism needs to be mounted before the processing box is assembled, so that the degree of freedom of the assembling process of the processing box is limited, and particularly for the processing box which is not equipped with the separating mechanism, the separating mechanism needs to be continuously mounted by disassembling a part of the processing box, and therefore, the separating mechanism which is simple, convenient and easy to mount is designed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a separating mechanism, this separating mechanism easily install and tear open and get, are favorable to promoting the degree of freedom of processing box equipment process, and its concrete scheme is as follows:
the separating mechanism is arranged in the processing box with the powder bin and the waste powder bin and used for receiving separating force from the outside to force the powder bin to move relative to the waste powder bin, the separating mechanism comprises a fixing piece and an acting piece, the fixing piece is fixedly connected with the waste powder bin, and the acting piece comprises a stressed part used for receiving the separating force and a rear guide part connected with the stressed part; when the force receiving portion receives the separating force, the rear guide portion moves in the front-rear direction in the mounting groove provided on the fixing member.
The acting piece also comprises a front guide part connected with the stress part, and the powder bin is also provided with a support hole which can be loosely matched with the front guide part.
The front guide portion extends in the up-down direction, and the rear guide portion extends in the front-rear direction.
Preferably, the acting element is formed by bending an integrally formed rigid element or by integrally injection moulding.
An opening is formed above the mounting groove, and the rear guide part can be pressed into the mounting groove from top to bottom along the vertical direction through the opening.
And a protrusion for limiting the upward movement of the rear guide part is arranged above the mounting groove.
Alternatively, the mounting groove is formed as a through hole or a blind hole extending in the front-rear direction on the body of the fixing piece.
The support hole is formed as an elliptical hole extending in the front-rear direction, the elliptical hole having a first end close to the waste toner hopper and a second end remote from the waste toner hopper.
Before the force-bearing part receives the separating force, the front guide part is positioned at a position close to the second tail end, and along with the receiving of the separating force by the force-bearing part, the front guide part moves towards a direction close to the first tail end.
The utility model provides a handle box detachably and install in the electrophotographic imaging device who is provided with application of force spare, handle the box including the powder storehouse that is provided with the developer roll, be provided with the useless powder storehouse of sensitization drum and be located the end cover of handling two vertical ends of box respectively, powder storehouse and useless powder storehouse pass through the end cover and combine, handle the box and still include separating mechanism, separating mechanism includes mounting and effect, mounting and useless powder storehouse fixed connection, effect are including the atress portion that is used for receiving the separating force and the back guide portion of being connected with the atress portion, and when the separating force was received to the atress portion, back guide portion moved along the fore-and-aft direction in the mounting groove that sets up on the mounting.
The process cartridge has a conductive end for receiving power from the electrophotographic image forming apparatus when the process cartridge is mounted to the electrophotographic image forming apparatus, and a driving end for receiving a driving force from the electrophotographic image forming apparatus, the separation mechanism being mounted at the driving end.
The utility model relates to a separating mechanism simple installation, and its installation opportunity does not have the restriction, and the equipment process degree of freedom of handling the box is promoted.
Drawings
Fig. 1 is a perspective view of a process cartridge according to the present invention.
Fig. 2 is an exploded view of the separation mechanism in the process cartridge according to the present invention.
Fig. 3 is a perspective view of the process cartridge according to the present invention after the separation mechanism is mounted.
Fig. 4 is a schematic view showing a state of the process cartridge viewed from the driving end before the separating mechanism receives the separating force.
Fig. 5 is a partial perspective view of the process cartridge according to the present invention, after the separating mechanism receives the separating force.
Fig. 6 is a schematic view showing a state of the process cartridge observed from the driving end after the separating mechanism receives the separating force.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 is a perspective view of a process cartridge according to the present invention; FIG. 2 is an exploded view of a separating mechanism in the process cartridge according to the present invention; fig. 3 is a perspective view of the process cartridge according to the present invention after the separation mechanism is mounted.
The processing box C is detachably installed in the electrophotographic imaging device provided with the force application part 4 and comprises a powder bin 1, a waste powder bin 2 and a separating mechanism 3, carbon powder required by developing of the processing box C is stored in the powder bin 1, the waste powder bin 2 is used for storing waste powder generated in the developing process, and the separating mechanism 3 is used for receiving separating force applied by the force application part 4, so that the powder bin 1 moves relative to the waste powder bin 2.
As shown in the figure, the powder hopper 1 includes a powder hopper housing 11, a developing roller 12 rotatably installed in the powder hopper housing 11, and a bracket 13 and a protecting cover 14 installed at the longitudinal end of the powder hopper housing 11, one end of the developing roller 12 is supported by the bracket 13, the protecting cover 14 is fixedly connected with the powder hopper housing 11 through the bracket 13, or the protecting cover 14 is directly fixed on the powder hopper housing 11, the protecting cover 14 is combined with the separating mechanism 3, when the separating force of the separating mechanism 3 is transmitted to the protecting cover 14, the powder hopper 1 starts to move relative to the waste powder hopper 2, specifically, the powder hopper 1 rotates relative to the waste powder hopper 2 around a rotation axis.
The powder hopper 1 further includes a developing roller 12 (shown in fig. 3) rotatably mounted in the powder hopper housing 11, the waste powder hopper 2 includes a waste powder hopper housing 21 and a photosensitive drum 24 rotatably mounted in the waste powder hopper housing, the developing roller 12 is in contact with the photosensitive drum 24 when the process cartridge C is operated in the electrophotographic image forming apparatus, and the developing roller 12 is separated from the photosensitive drum 24 as the powder hopper 1 moves relative to the waste powder hopper by the separating mechanism 3 when the process cartridge C is not operated in the electrophotographic image forming apparatus.
Further, the processing box C also comprises end covers 22/23 respectively located at two longitudinal ends thereof, the powder bin 1 and the waste powder bin 2 are combined through an end cover 22/23, when the processing box is assembled, the end cover 22/23 is located at the outermost side of the processing box, and the end cover also plays a role in protecting components in the processing box while connecting the powder bin 1 and the waste powder bin 2; the end cap 22/23 can be formed separately from or integrally with the waste powder bin housing 21, and the following description will be made by taking an example in which the end cap 22/23 is integrally formed with the waste powder bin housing 21, and at this time, the end cap 22/23 is formed as a part of the waste powder bin 2, so that the difficulty in assembling the processing box C is reduced; when the process cartridge C is mounted to the electrophotographic image forming apparatus, one longitudinal end of the process cartridge C receives electric power from the electrophotographic image forming apparatus and is referred to as a conductive end C1, and the other longitudinal end receives driving force from the electrophotographic image forming apparatus and is referred to as a driving end C2.
For the sake of clarity, the longitudinal direction of the process cartridge is defined as the left-right direction, with respect to the process cartridge C laid flat and the photosensitive drum 24 positioned above the developing roller 12, the direction from the powder hopper housing 11 toward the rear of the waste powder hopper housing 21, the direction from the side where the photosensitive drum 24 is provided toward the side where the photosensitive drum 24 is not provided is the lower direction, the direction from the conductive end C1 toward the driving end C2 is the left direction, and conversely, the direction from the waste powder hopper housing 21 toward the powder hopper housing 11 is the front direction, the direction from the side where the photosensitive drum 24 is not provided toward the side where the photosensitive drum 24 is provided is the upper direction, and the direction from the driving end C2 toward the conductive end C1 is the right direction.
As shown in fig. 1, the separating mechanism 3 includes a fixing member 31 and an acting member 32, the fixing member 31 is fixedly connected with the end cap 23/waste bin 2, the acting member 32 is slidable in the front-rear direction in the fixing member 31, as shown in fig. 2 and 3, an installation groove 311 extending in the front-rear direction is provided in the fixing member 31, the acting member 32 includes a force receiving portion 321 and a rear guide portion 323 located behind the force receiving portion 321, and the guide portion 323 is coupled to the installation groove 311 and slidable in the front-rear direction along the installation groove 311.
The fixing member 31 may be configured as a separate component attached to the end cap 23, and in this case, the mold of the end cap 23 may be modified without modification or with only a small amount of modification, and may be determined according to the coupling manner of the fixing member 31 and the end cap 23, for example, when the fixing member 31 and the end cap 23 are in a snap-fit coupling, the end cap 23 needs to be configured with a protrusion or a coupling hole for coupling with the fixing member 31, and when the fixing member 31 and the end cap 23 are in an adhesive/magnetic coupling, the structure of the end cap 23 may not be modified. As shown in fig. 3, the fixing member 31 is formed as a groove opened upward, the rear guide part 323 can be pressed into the mounting groove 311 through the opening from up to down in the up-down direction, and at the same time, a protrusion 312 is further provided above the mounting groove 311, and when the rear guide part 323 is pressed into the mounting groove 311, the tendency of the rear guide part 323 to move upward is stopped by the protrusion 312, and thus, the rear guide part 323 can move/slide in the mounting groove 311 only in the front-rear direction.
It is also possible to realize that the mounting groove 311 is formed without the opening above the mounting groove 311 such that the mounting groove 311 is formed as a through hole or a blind hole extending in the front-rear direction on the body of the fixing member 31, the rear guide part 323 needs to be mounted toward the mounting groove 311 in the front-rear direction, which is distinguished from the ease of mounting, and the mounting of the rear guide part 323 can be made simpler by forming the opening above the mounting groove 311.
Preferably, the acting element 32 is formed by bending an integrally formed rigid member, or the acting element 32 is formed by injection molding and has good strength, and when the acting element 32 is completely unfolded, the acting element 32 has a rod shape, and the bent rod shape not only enhances the strength but also effectively prevents interference between the acting element 32 and other components during the installation of the process cartridge C.
As further shown in fig. 3, the process cartridge C further includes a support hole 141 provided in the holder 13 or the cover 14 or the powder hopper housing 11, and the acting member 32 further includes a front guide portion 322 connected to the force receiving portion 321, the front guide portion 322 being received in the support hole 141 with a loose fit therebetween, so that the front guide portion 322 is movable in the support hole 141 not only in the up-down direction but also in the front-back direction or the left-right direction, and the acting member 32 can be more stably mounted in the process cartridge C supported by the support hole 141 without only the rear guide portion 323 being located in the mounting groove 311, so that the acting member 32 is in a "hanging" shape. As shown in fig. 2, the support hole 141 is an elliptical hole extending in the front-rear direction, and has a first end 141a close to the photosensitive drum 24/waste toner hopper 2 and a second end 141b far from the photosensitive drum 24/waste toner hopper 2.
As a whole, the front guide portion 322 of the acting element 32 is a rod extending in the up-down direction, and the rear guide portion 323 is a rod extending in the front-rear direction, so that when the force receiving portion 321 receives a separating force in the front-rear direction, the front guide portion 322 can move in the front-rear direction in the support hole 141, and the rear guide portion 323 can move in the front-rear direction in the mounting groove 311.
FIG. 4 is a schematic view showing a state of the process cartridge viewed from the driving end before the separating mechanism receives the separating force in the process cartridge according to the present invention; FIG. 5 is a partial perspective view of the process cartridge according to the present invention after the separating mechanism receives the separating force; fig. 6 is a schematic view showing a state of the process cartridge observed from the driving end after the separating mechanism receives the separating force.
To facilitate viewing of the relative positional change between the photosensitive drum 24 and the developing roller 12, only the photosensitive drum 24 remains in the waste bin portion in fig. 4 and 6. In a state where the process cartridge C is mounted to the electrophotographic image forming apparatus, when the process cartridge C is operated, the photosensitive drum 24 and the developing roller 12 are kept in contact, the leading guide portion 322 is located at a position closer to the second end 141b of the support hole before the force applying member 4 located in the electrophotographic image forming apparatus applies the separating force to the force receiving portion 321, the position between the force receiving portion 321 and the powder hopper 1 is not limited, and the two may be in a state of being separated from each other or in a state of being in contact with each other, and the first power receiving portion 15 and the second power receiving portion 241 located at the driving end C2 receive the driving force from the electrophotographic image forming apparatus and drive the developing roller 12 and the photosensitive drum 24 to rotate, respectively.
When the process cartridge C stops operating, the urging member 4 will move forward in the front-rear direction, applying a separating force to the force receiving portion 321 by touching with the force receiving portion 321, the separating force being transmitted to the powder hopper through the force receiving portion 321, at this time, the force receiving portion 321 comes into contact with at least one of the powder hopper housing 11, the bracket 13 and the protective cover 14, and further, the powder hopper 1 as a whole is forced to rotate about the rotational axis of the first power receiving member 15, the developing roller 12 is separated from the photosensitive drum 24, and at the same time, the rear guide portion 323 slides from back to front along the mounting groove 311, and the front guide portion 322 moves from a position near the second end 141b to a position near the first end 141a, whereby it can be seen that the oval support hole 141 helps to prevent the front guide portion 322 from interfering with the powder hopper member, and the mounting groove 311 extending in the front-rear direction helps to ensure a stable movement locus of the rear guide portion 323.
When the process cartridge C needs to be operated again, the force applying member 4 does not apply the separating force to the force receiving portion 321 any more, the powder hopper 1 will be rotated reversely along the rotation axis of the first power receiving member 15 by the restoring member provided in the process cartridge C, and the developing roller 12 is returned to the position of contact with the photosensitive drum 24 again.
As described above, the operation member 32 of the separating mechanism 3 according to the present invention is installed in the installation groove 311 by pressing or inserting the rear guide portion 323 thereof, and the front guide portion 322 for supporting the operation member 32 is loosely fitted to the support hole 141, so that the installation of the operation member is simplified, and particularly, the time for installing the operation member 32 to the fixing member 31 and the support hole 141 is not limited, and the installation of the operation member 32 can be quickly performed, and the degree of freedom of the process cartridge C assembling process is improved regardless of whether the process cartridge C is assembled or assembled together with other components other than the separating mechanism 3 in the process cartridge C.
Claims (10)
1. A separating mechanism installed in a process cartridge having a powder hopper and a waste powder hopper for receiving a separating force from outside to force the powder hopper to move relative to the waste powder hopper,
the separating mechanism comprises a fixing piece and an acting piece, the fixing piece is fixedly connected with the waste powder bin, and the acting piece comprises a stressed part for receiving separating force and a rear guide part connected with the stressed part;
when the force receiving portion receives the separating force, the rear guide portion moves in the front-rear direction in the mounting groove provided on the fixing member.
2. The separating mechanism according to claim 1, wherein the acting member further comprises a front guide portion connected to the force receiving portion, and the powder hopper is further provided with a support hole loosely fitted to the front guide portion.
3. The separating mechanism according to claim 2, wherein the front guide portion extends in the up-down direction, and the rear guide portion extends in the front-rear direction.
4. A release mechanism according to claim 1, wherein the acting element is formed by bending an integrally formed rigid element or by injection moulding.
5. The separating mechanism according to claim 1, 2, 3 or 4, wherein an opening is formed above the mounting groove, and the rear guide portion is pressed into the mounting groove through the opening from up to down in the up-down direction.
6. The separating mechanism according to claim 5, wherein a protrusion for limiting the upward movement of the rear guide is further provided above the mounting groove.
7. A separating mechanism as claimed in claim 1, 2, 3 or 4, characterized in that the mounting slot is formed as a through-hole or blind hole extending in the front-rear direction in the body of the fixing element.
8. The separating mechanism according to claim 2, wherein the support hole is formed as an elliptical hole extending in the front-rear direction, the elliptical hole having a first end close to the waste toner hopper and a second end remote from the waste toner hopper.
9. The release mechanism of claim 8, wherein the front guide portion is positioned proximate the second end before the force receiving portion receives the release force, and wherein the front guide portion moves in a direction proximate the first end as the force receiving portion receives the release force.
10. A processing box detachably mounted in the electrophotographic image forming apparatus provided with a force application member, the processing box including a powder bin provided with a developing roller, a waste powder bin provided with a photosensitive drum, and end caps respectively located at two longitudinal ends of the processing box, the powder bin and the waste powder bin being combined by the end caps,
the processing box also comprises a separating mechanism, the separating mechanism comprises a fixing piece and an acting piece, the fixing piece is fixedly connected with the waste powder bin, the acting piece comprises a stress part for receiving separating force and a rear guide part connected with the stress part,
when the force receiving portion receives the separating force, the rear guide portion moves in the front-rear direction in the mounting groove provided on the fixing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121633902.0U CN215006255U (en) | 2021-07-19 | 2021-07-19 | Separating mechanism and processing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121633902.0U CN215006255U (en) | 2021-07-19 | 2021-07-19 | Separating mechanism and processing box |
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| Publication Number | Publication Date |
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| CN215006255U true CN215006255U (en) | 2021-12-03 |
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| CN202121633902.0U Active CN215006255U (en) | 2021-07-19 | 2021-07-19 | Separating mechanism and processing box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024061283A1 (en) * | 2022-09-21 | 2024-03-28 | 珠海纳思达信息技术有限公司 | Process cartridge |
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2021
- 2021-07-19 CN CN202121633902.0U patent/CN215006255U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024061283A1 (en) * | 2022-09-21 | 2024-03-28 | 珠海纳思达信息技术有限公司 | Process cartridge |
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