CN214896219U - Developing box and image forming device - Google Patents
Developing box and image forming device Download PDFInfo
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- CN214896219U CN214896219U CN202120932655.8U CN202120932655U CN214896219U CN 214896219 U CN214896219 U CN 214896219U CN 202120932655 U CN202120932655 U CN 202120932655U CN 214896219 U CN214896219 U CN 214896219U
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- developing cartridge
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- driving mechanism
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Abstract
The utility model discloses a developing box and image forming device, developing box include box body, actuating mechanism and detection mechanism, wherein: the receiving end of the driving mechanism is used for receiving external driving force, and the working end of the driving mechanism is used for transmitting the received external driving force to the detection mechanism; the detection mechanism comprises an engaging part and a disconnecting part, and in a detection period, the working end of the driving mechanism is connected with the engaging part and the disconnecting part in sequence, wherein: when the working end of the driving mechanism is connected with the joint part, the detected part of the detecting mechanism moves from a first position to a second position; when the working end of the driving mechanism is connected with the disconnecting part, the detected part of the detecting mechanism keeps a set position. Compared with the prior art, a plurality of transmission gears are not required to transmit the external driving force, so that the transmission structure of the external driving force is greatly simplified, the development box is suitable for diversified development boxes, the requirement on the precision of a transmission part is greatly reduced, and the cost is effectively reduced.
Description
Technical Field
The utility model relates to an imaging technology field, especially a developing box and image forming device.
Background
The image forming apparatus is provided with a detecting device for detecting information of the developing cartridge loaded in the image forming apparatus, the information of the developing cartridge including information of whether the developing cartridge is correctly mounted, an amount of the developer contained in the developing cartridge, and whether the developing cartridge is new or old. The developing cartridge carries the developer through the developing member surface, thereby transferring the developer from the developing cartridge to the photosensitive member opposite to the developing member, and forming an image composed of the developer on the photosensitive member.
As shown in fig. 1 and 2, a developing cartridge 1 in the related art includes a cartridge body 10, a developing member 13, a powder feeding member (not shown), a drive gear 14, and a detection gear 15. In the axial direction of the rotation of the developing element 13, the driving gear 14 is located on the first side wall 11 of the cartridge body 10, and the detecting gear 15 is located on the second side wall 12 of the cartridge body 10; the powder feeding element is positioned in the box body 10 and supported by the box body 10, two ends of the powder feeding element are respectively provided with a transmission gear, and the transmission gears are respectively meshed (including direct meshing and indirect meshing) with the driving gear 14 and the detection gear 15, so that the driving force received by the driving gear 14 is transmitted to the detection gear 15; the detection gear 15 is rotated by the driving force and detected by the image forming apparatus.
In the prior art, the requirements on the manufacturing and mounting precision of the gear are high, otherwise abnormal sound is generated, and therefore the production cost of the detection gear 15 and the transmission gear is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a developing box and image forming device to solve the technical problem among the prior art.
The utility model provides a developing box, including box body, actuating mechanism and detection mechanism all locates on the box body, wherein:
the receiving end of the driving mechanism is used for receiving external driving force, and the working end of the driving mechanism is used for transmitting the received external driving force to the detection mechanism;
the detection mechanism comprises an engaging part and a disconnecting part, and in a detection period, the working end of the driving mechanism is connected with the engaging part and the disconnecting part in sequence, wherein:
when the working end of the driving mechanism is connected with the joint part, the detected part of the detecting mechanism moves from a first position to a second position;
when the working end of the driving mechanism is connected with the disconnecting part, the detected part of the detecting mechanism keeps a set position.
A developing cartridge as described above, wherein preferably, the driving mechanism includes a driving gear, a rotary shaft member, and a first rotary member, the cartridge body includes a first side wall and a second side wall which are disposed oppositely, and the rotary shaft member is supported by the first side wall and the second side wall, wherein:
the driving gear is arranged on the first side wall, serves as a receiving end of the driving mechanism and is in indirect transmission connection with one end of the rotating shaft;
the first rotating piece is arranged on the second side wall, serves as a working end of the driving mechanism and is in indirect transmission connection with the other end of the rotating shaft piece.
In the above developing cartridge, it is preferable that the detecting mechanism includes an annular belt-shaped body, and the engaging portion and the disengaging portion are provided on an inner circumferential surface of the annular belt-shaped body in end-to-end relation.
In the developing cartridge according to the above, preferably, the detection mechanism further includes a second rotating member, the annular belt-shaped body is sleeved on the first rotating member and the second rotating member, and the second rotating member and the annular belt-shaped body keep moving synchronously.
In the developing cartridge according to the above aspect, it is preferable that the detected part is provided on the annular belt-shaped body or the second rotary member and keeps moving in synchronization with the annular belt-shaped body and the second rotary member.
In the above developing cartridge, it is preferable that the detection target portion includes a tab, one end of the tab is provided on the annular belt-shaped main body, the other end of the tab extends in a predetermined direction, and the tab moves from the first position to the second position to complete detection.
In the above developing cartridge, it is preferable that a plurality of the projecting pieces are provided, and a predetermined gap is provided between adjacent projecting pieces.
The developing cartridge as described above, wherein preferably, the endless belt-like body is a rack or a belt, and the first rotating member and the second rotating member are both gears or pulleys.
The developing cartridge as described above, wherein preferably, the endless belt-like body is a chain, and the first rotating member and the second rotating member are both sprockets.
The utility model also provides an image forming device, including aforementioned developing cartridge.
Compared with the prior art, need not increase a plurality of transmission gears transmission external drive power to simplify the transmission structure of external drive power greatly, greatly reduced the requirement to the precision of transmission part, effective reduce cost, and richened detection mechanism's transmission structure and adapted diversified development box.
Drawings
Fig. 1 is a schematic structural view of a first side of a developing cartridge of the related art;
fig. 2 is a schematic structural view of a second side of the developing cartridge of the related art;
fig. 3 is a schematic view of the mounting of the detection mechanism of the developing cartridge in the present embodiment;
fig. 4 is an exploded view of the detection mechanism in this embodiment.
Description of reference numerals:
10-cartridge, 11-first side wall, 12-second side wall, 13-developing element;
2-drive mechanism, 21-rotating shaft, 22-first rotating member, 23-idler;
3-detection mechanism, 31-annular belt-shaped body, 32-detected part, 33-joint part, 34-disconnection part and 35-second rotating member.
In the prior art:
1-developing cartridge, 10-cartridge body, 11-first side wall, 12-second side wall, 13-developing element, 14-driving gear, 15-detection gear.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 3, the embodiment of the present invention provides a developing cartridge, including a cartridge body 10, a driving mechanism 2 and a detection mechanism 3, the cartridge body 10 can contain a developer, the driving mechanism 2 and the detection mechanism 3 are all located on the cartridge body 10, wherein:
the receiving end of the driving mechanism 2 is located on the first side wall 11, the working end of the driving mechanism 2 is located on the second side wall 12, and the receiving end of the driving mechanism 2 is used for receiving an external driving force, in this embodiment, the external driving force is provided by an image forming device (not shown), the external driving force is transmitted to the working end of the driving mechanism 2 through the receiving end of the driving mechanism 2, and the working end of the driving mechanism 2 is connected with the detecting mechanism 3 and is used for transmitting the received external driving force to the detecting mechanism 3.
As shown in fig. 4, the detecting mechanism 3 includes an engaging portion 33 and a disconnecting portion 34, and as a preferred technical solution, the engaging portion 33 is a rack structure to engage with the working end of the driving mechanism 2 to realize transmission connection, while the engaging portion 34 is a smooth surface structure, when the working end of the driving mechanism 2 is connected with the engaging portion 34, a slip occurs, the external driving force is disconnected from being transmitted, and in one detecting period, the working end of the driving mechanism 2 is connected with the engaging portion 33 and the disconnecting portion 34 in sequence, in this embodiment, it is preferred that the engaging portion 33 is in lap joint with the disconnecting portion 34, and the working end of the driving mechanism 2 is connected with the disconnecting portion 34 after being disconnected from the engaging portion 33, wherein:
when the operating end of the driving mechanism 2 is connected to the engaging portion 33, the first position is an initial position before the detection mechanism is operated, and the second position is a final position after the detection is completed, in the first position, the teeth of the engaging portion 33 are engaged with the first rotating member 22, and in the second position, the first rotating member 22 is in contact with the smooth surface of the disconnecting portion 34 and is not engaged with the teeth of the engaging portion 33. The detected part 32 of the detecting mechanism 3 moves from the first position to the second position, the detected part 32 is detected by the image forming apparatus during the moving process, and after the detection is completed, the working end of the driving mechanism 2 is disconnected from the joint part 33 and connected with the subsequent disconnecting part 34, and the detected part 32 is not driven to move any more.
When the working end of the driving mechanism 2 is connected to the disconnecting part 34, the working end of the driving mechanism 2 cannot drive the detecting mechanism 3 to move, so that the detected part 32 of the detecting mechanism 3 keeps a set position of a static state.
The embodiment is not provided with a detection gear, so that the requirements on the precision of the driving mechanism 2 and the detection mechanism 3 are greatly reduced, and the cost is effectively reduced.
In a preferred embodiment of the present invention, the rotary shaft member 21 includes a developing element 13 and a powder feeding element (not shown in the figure), the developing element 13 is used for carrying and transporting the developer, the powder feeding element is located inside the box body 10 and is used for feeding the developer to the developing element 13, a first transmission gear (not shown in the figure) is arranged at one end of the powder feeding element close to the first side wall 11, and a second transmission gear (not shown in the figure) is arranged at one end of the powder feeding element close to the second side wall 12; the first transmission gear meshes with the drive gear 14, the second transmission gear meshes with the idle gear 23, and the idle gear 23 meshes with the first rotating member 22; the driving mechanism 2 comprises a driving gear 14 (see the position setting in the prior art as shown in fig. 1), a rotating shaft 21, a first transmission gear, a second transmission gear, an idle gear 23 and a first rotating member 22, the box body 10 comprises a first side wall 11 and a second side wall 12 which are oppositely arranged, the rotating shaft 21 is supported by the first side wall 11 and the second side wall 12, the rotating shaft 21 can rotate relative to the box body 10, and the first transmission gear is meshed with the driving gear 14 and is used for driving the powder feeding element to rotate, wherein:
the driving gear 14 is arranged on the first side wall 11, the driving gear 14 is arranged at the receiving end of the driving mechanism 2, the driving gear 14 is used as the receiving end of the driving mechanism 2 and is indirectly in transmission connection with one end of the rotating shaft member 21, specifically, the first transmission gear is in transmission connection with one end of the rotating shaft member 21 close to the first side wall, the driving gear 14 receives external driving force from the image forming device, and the first transmission gear on the first side wall 11 receives the driving force transmitted by the driving gear 14 to rotationally drive the powder feeding element, so that the powder feeding element rotates; the powder feeding element drives the second transmission gear to rotate together, and the second transmission gear transmits the driving force to the idle gear 23.
The first rotating member 22 is disposed on the second side wall 12, and the first rotating member 22 is used as a working end of the driving mechanism 2 and is indirectly connected with the other end of the rotating shaft member 21 in a transmission manner. Specifically, the first rotating member 22 is engaged with the idle gear 23 to rotate together with the idle gear 23, so that the driving mechanism 2 transmits the external driving force from the first side wall 11 to the second side wall 12.
In a preferred embodiment of the present invention, the detecting mechanism 3 includes an annular main body 31, the annular main body 31 is a belt-shaped structure, the joint portion 33 and the breaking portion 34 are disposed on an inner annular surface of the annular main body 31 end to end, a head end of the joint portion 33 is connected to a tail end of the breaking portion 34, and a head end of the breaking portion 34 is connected to a tail end of the joint portion 33, so as to form a circulation loop.
In this embodiment, the annular belt-shaped body 31 is sleeved on the first rotating member 22, the first rotating member 22 has a large-diameter gear and a small-diameter gear which are coaxially and integrally arranged, the diameter of the large-diameter gear is larger than that of the small-diameter gear, and the large-diameter gear is closer to the box body 10 than the small-diameter gear; the idle gear 23 has an upper gear and a lower gear coaxially and integrally provided, the lower gear having a diameter larger than that of the upper gear, the lower gear being closer to the case 10 than the upper gear. The lower gear of the idle gear 23 is engaged with the second transmission gear, the upper gear of the idle gear 23 is engaged with the large diameter gear of the first rotating member 22, the first rotating member 22 receives the external driving force from the idle gear 23 to rotate, in an initial state, the small diameter gear of the first rotating member 22 is connected with the joint part 33 to drive the annular belt-shaped main body 31 to rotate, the detected part 32 on the annular belt-shaped main body 31 moves from the first position to the second position, the detected part 32 is contacted and separated with the detecting device of the image forming apparatus during the movement to be detected by the image forming apparatus, and when the annular belt-shaped main body 31 rotates to connect the first rotating member 22 with the disconnecting part 34, the annular belt-shaped main body 31 disconnects the transmission of the external driving force to maintain the set position.
Further, the detecting mechanism 3 is further provided with a second rotating member 35, the second rotating member 35 is a driven member and is disposed on the positioning column on the second side wall 12, the annular belt-shaped main body 31 is sleeved on the first rotating member 22 and the second rotating member 35 and is tensioned by the first rotating member 22 and the second rotating member 35, the first rotating member 22 receives an external driving force transmitted from the driving gear 14, the annular belt-shaped main body 31 is driven to rotate, and the annular belt-shaped main body 31 can drive the second rotating member 35 to rotate synchronously, preferably, the second rotating member 35 and the annular belt-shaped main body 31 keep synchronous motion.
Further, the detected part 32 may be disposed on the annular belt-shaped body 31 or on the second rotating member 35, specifically, the detected part 32 is disposed on the annular belt-shaped body 31 or the second rotating member 35 and keeps moving synchronously with the annular belt-shaped body 31 and the second rotating member 35, and when the detected part 32 is disposed on the second rotating member 35, the annular belt-shaped body 31 is only a transmission component, and a transmission function is reserved.
Further, the detected part 32 includes a tab that protrudes in a direction away from the case 10. One end of a protruding piece is provided on the annular belt-shaped main body 31, the other end of the protruding piece extends towards a predetermined direction, the predetermined direction is determined according to the position of a detection device in the image forming device, the shape of the protruding piece can be various shapes such as a strip shape, a wave shape, an angle shape and the like, the protruding piece is not limited as long as the protruding piece can be detected by the image forming device, and the protruding piece moves from the first position to the second position to complete the detection. In this embodiment, the tabs are provided with one or more tabs, and a predetermined gap is provided between adjacent tabs, and those skilled in the art can know that the number of tabs and the predetermined gap may be determined according to the model of the machine, and are not limited herein. Preferably, there are 3 tabs and they are provided on the break 34.
Further, a rack transmission, a belt transmission, or a chain transmission may be performed between the endless belt-shaped body 31 and the first rotating member 22 and the second rotating member 35, specifically, the endless belt-shaped body 31 is a rack, a belt, or a chain, and both the first rotating member 22 and the second rotating member 35 are gears, pulleys, or sprockets. The shape of the annular belt-shaped body 31 can be annular, long strip, and other shapes capable of transmitting power, and is not limited herein. The rotation shaft 21 may further include a stirring member, the stirring member is located inside the box 10 and is used for rotationally stirring the developer to prevent the developer from agglomerating, and the driving mechanism 2 may transmit the driving force from the receiving end to the working end by using the powder feeding element, or transmit the driving force from the receiving end to the working end by using the developing element 13 or the stirring member, which is not limited herein. The detection mechanism 3 may also be located on the first side wall 11 to accommodate different image forming apparatuses.
The position of the detection mechanism 3 in the developing cartridge is determined by the position of the detection device in the image forming apparatus, so that the position of the detection mechanism 3 in the developing cartridge has limited variation, and therefore, when the first rotating member 22 is far from the detection position, if the transmission gear transmission is adopted between the detection mechanism 3 and the first rotating member 22, a plurality of transmission gears are required to be added between the detection mechanism 3 and the first rotating member 22 for transmitting the driving force. However, if a belt or chain drive is used, the belt and chain are directly used as transmission members to connect the detection mechanism 3 and the first rotating member 22, and a plurality of transmission gears are not required to be added to transmit the external driving force, so that the transmission structure of the external driving force is greatly simplified to adapt to diversified developing cartridges.
The embodiment also provides an image forming device, which comprises the developing box, has the characteristics of high production efficiency and low cost, and effectively makes up the defects of the conventional image forming device.
The structure, features and effects of the present invention have been described in detail above according to the embodiment shown in the drawings, and the above description is only the preferred embodiment of the present invention, but the present invention is not limited to the implementation scope shown in the drawings, and all changes made according to the idea of the present invention or equivalent embodiments modified to the same changes should be considered within the protection scope of the present invention when not exceeding the spirit covered by the description and drawings.
Claims (10)
1. The utility model provides a developing box, includes box body, actuating mechanism and detection mechanism all locates on the box body, wherein:
the receiving end of the driving mechanism is used for receiving external driving force, and the working end of the driving mechanism is used for transmitting the received external driving force to the detection mechanism, and the detection mechanism is characterized in that:
the detection mechanism comprises an engaging part and a disconnecting part, and in a detection period, the working end of the driving mechanism is connected with the engaging part and the disconnecting part in sequence, wherein:
when the working end of the driving mechanism is connected with the joint part, the detected part of the detecting mechanism moves from a first position to a second position;
when the working end of the driving mechanism is connected with the disconnecting part, the detected part of the detecting mechanism keeps a set position.
2. A developing cartridge according to claim 1, wherein: the drive mechanism includes drive gear, rotation axis spare and first rotating member, the box body includes relative first lateral wall and the second lateral wall that sets up, rotation axis spare by first lateral wall with the second lateral wall supports, wherein:
the driving gear is arranged on the first side wall, serves as a receiving end of the driving mechanism and is in indirect transmission connection with one end of the rotating shaft;
the first rotating piece is arranged on the second side wall, serves as a working end of the driving mechanism and is in indirect transmission connection with the other end of the rotating shaft piece.
3. A developing cartridge according to claim 2, wherein: the detection mechanism comprises an annular main body, and the joint part and the disconnection part are arranged on the inner annular surface of the annular main body in an end-to-end connection manner.
4. A developing cartridge according to claim 3, wherein: the detection mechanism is further provided with a second rotating piece, the annular belt-shaped main body is sleeved on the first rotating piece and the second rotating piece, and the second rotating piece and the annular belt-shaped main body keep synchronous motion.
5. A developing cartridge according to claim 4, wherein: the detected part is arranged on the annular belt-shaped main body or the second rotating piece and keeps synchronous motion with the annular belt-shaped main body and the second rotating piece.
6. A developing cartridge according to claim 4, wherein: the detection part comprises a convex piece, one end of the convex piece is arranged on the annular belt-shaped main body, the other end of the convex piece extends towards a preset direction, and the convex piece moves from the first position to the second position to finish detection.
7. A developing cartridge according to claim 6, wherein: the lug is provided with one or more, and a set gap is arranged between the adjacent lugs.
8. A developing cartridge according to claim 4, wherein: the annular belt-shaped main body is a rack or a belt, and the first rotating piece and the second rotating piece are both gears or belt pulleys.
9. A developing cartridge according to claim 4, wherein: the annular belt-shaped main body is a chain, and the first rotating piece and the second rotating piece are chain wheels.
10. An image forming apparatus, characterized in that: a developing cartridge comprising any one of claims 1 to 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020210792262 | 2020-06-11 | ||
| CN202021079226 | 2020-06-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214896219U true CN214896219U (en) | 2021-11-26 |
Family
ID=78945871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120932655.8U Active CN214896219U (en) | 2020-06-11 | 2021-04-30 | Developing box and image forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214896219U (en) |
-
2021
- 2021-04-30 CN CN202120932655.8U patent/CN214896219U/en active Active
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