CN109725518B - Developer supply container - Google Patents
Developer supply container Download PDFInfo
- Publication number
- CN109725518B CN109725518B CN201910210735.XA CN201910210735A CN109725518B CN 109725518 B CN109725518 B CN 109725518B CN 201910210735 A CN201910210735 A CN 201910210735A CN 109725518 B CN109725518 B CN 109725518B
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- Prior art keywords
- developer
- supply container
- developer supply
- powder
- elastic blade
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- 239000000843 powder Substances 0.000 claims abstract description 78
- 238000003756 stirring Methods 0.000 claims description 51
- 230000002093 peripheral effect Effects 0.000 claims description 27
- 230000005540 biological transmission Effects 0.000 claims description 17
- 238000012546 transfer Methods 0.000 claims description 17
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 2
- 238000005381 potential energy Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 235000012054 meals Nutrition 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
The invention provides a developer supply container, which comprises a containing cylinder and a supply piece arranged in the containing cylinder, wherein a driving force receiving part is arranged on the outer surface of the containing cylinder; the developer supply container is also provided with a shell, the shell is arranged at one end of the accommodating cylinder, the shell is provided with a powder outlet, a flashboard is detachably arranged on the shell, and the flashboard can open and close the powder outlet; wherein, be provided with developer storage portion in the casing, and developer storage portion and play powder mouth intercommunication are provided with agitating unit in the developer storage portion, agitating unit includes axle rotating member and elastic blade, and elastic blade's fixed end is fixed on the axle rotating member, and elastic blade's free end can pass out the powder mouth and butt flashboard. The invention can keep the developer in a fluffy state and improve the developer conveying amount of the developer supply container.
Description
Technical Field
The invention relates to the field of consumables of electronic imaging equipment, in particular to a developer supply container for the electronic imaging equipment.
Background
An electrophotographic image forming apparatus generally has an image processing unit and a developer supply container detachably attached to the image processing unit, the developer supply container containing therein a developer (toner) such as carbon powder, developing an electrostatic latent image formed on the image processing unit to form a visible image on a medium such as paper. Since the developer is required to be constantly replenished into the electrophotographic type image forming apparatus as a consumable, and the developing unit detachably mounted into the electrophotographic type image forming apparatus has a structure in which only a certain amount of developer is often loaded, the developer supply container needs to be frequently replaced.
Fig. 1 and 2 are an exploded view and a sectional view, respectively, of a conventional developer supply container detachably mountable to an image processing unit, the developer supply container 100 including a housing portion 110 for housing a developer, a supply portion 120 for supplying the developer in the housing portion 110 with rotation of the supply portion 120, the developer supply container 100 further including a discharge portion 130 provided with a discharge port 131 for allowing the developer supplied by the supply portion 120 to be discharged, the developer supply container 100 further including a pump portion 140, the pump portion 140 acting on the discharge portion 130 and having a volume that varies with repeated movement, the developer supply container 100 further including a driving force receiving portion 111 for receiving a rotational force for rotating the housing portion 110 from a developer replenishing apparatus, the developer supply container 100 further including a drive converting portion 150 for converting the rotational force received by the driving force receiving portion 111 into a force for operating the pump portion 140.
Wherein the pump portion 140 is stretchable and this stretching is sufficient to change the internal pressure of the developer supply container 100 by utilizing the volume change. The driving conversion part 150 drives the pump part 140 to perform axial expansion and contraction, and drives the air pressure inside the developer supply container 100 to repeatedly change between positive and negative. The developer flows out from the discharge port 131 and enters the developing unit by the positive pressure of the pump portion 140. When the pump part 140 is restored, the negative pressure drives the developer inside the developer supply container 100, so that the developer inside is kept in a fluffy state, and the developer is prevented from forming a lump shape and is not easy to be discharged from the discharge port 131.
However, the pump portion 140 has a volume that changes with repeated movements to change the internal pressure of the developer supply container 100, and the negative pressure may suck the developer back during the return of the pump portion 140, resulting in an uneven supply of the developer.
Therefore, some existing developer supply containers are provided with a blowing cavity, a wind wheel is arranged in the blowing cavity, the wind wheel is provided with a plurality of blades, when the developer supply member rotates, the wind wheel also rotates, air flow is formed through rotation of the wind wheel, and the air flow drives the developer to flow so that the developer is kept in a fluffy state. While other developer supply containers have a discharge chamber at the upstream end of the outlet, a spiral conveyor is provided in the discharge chamber, and the developer is stirred by the conveyor so that the developer is kept in a fluffy state. Because the two schemes do not need to be provided with a pump part, the problem of unsmooth supply of the developer can be avoided, and the fluffy state of the developer can be maintained.
However, since the above-described configuration eliminates the pump portion, the amount of developer transferred is affected, resulting in a smaller amount of developer transferred after each rotation of the developer supply member, affecting the quality of developed image, and resulting in lighter text and pattern formed on the sheet.
Disclosure of Invention
The main object of the present invention is to provide a developer supply container which ensures that developer is fed out to a powder outlet while maintaining a fluffy state.
Another object of the present invention is to provide a developer supply container that improves the developer conveyance amount.
In order to achieve the main purpose of the invention, the developer supply container provided by the invention comprises a containing cylinder and a supply piece arranged in the containing cylinder, wherein the outer surface of the containing cylinder is provided with a driving force receiving part; the developer supply container is also provided with a shell, the shell is arranged at one end of the accommodating cylinder, the shell is provided with a powder outlet, a flashboard is detachably arranged on the shell, and the flashboard can open and close the powder outlet; wherein, be provided with developer storage portion in the casing, and developer storage portion and play powder mouth intercommunication are provided with agitating unit in the developer storage portion, agitating unit includes axle rotating member and elastic blade, and elastic blade's fixed end is fixed on the axle rotating member, and elastic blade's free end can pass out the powder mouth and butt flashboard.
As can be seen from the above, the developer entering the developer storage portion can be ensured to be in a fluffy state by stirring the developer entering the developer storage portion by the stirring device located in the developer storage portion. And, because developer storage portion communicates with the meal outlet, be favorable to sending the developer of fluffy state to the meal outlet, ensure that the developer can be smooth and easy through the meal outlet.
In addition, because the developer gets into after the developer storage part through agitating unit's stirring for the developer flows to the powder outlet more fast, and agitating unit's elastic blade free end can the butt flashboard, pushes away the developer on the flashboard to the powder feed port for every round of developer supply container, has more developer to flow from the powder feed port, improves the conveying volume of developer.
In a preferred embodiment, the number of the elastic blades is two or more, and the plurality of elastic blades are circumferentially arranged around the shaft rotating member. Thus, by providing a plurality of elastic blades, the developer in the second storage part can be sufficiently stirred, and the formation of a lump at the upstream end of the powder outlet of the developer is effectively avoided.
Further, at least one protruding portion is formed on a peripheral wall of the developer storage portion, the protruding portion extending from the peripheral wall of the developer storage portion in an axial direction of the developer storage portion; the protruding part is positioned at the upstream end of the powder outlet in the rotation direction of the elastic blade.
Therefore, the elastic blade is abutted by the protruding part to form elastic potential energy, and when the free end of the elastic blade enters the powder outlet, larger force is applied to the developer, so that more developer is pushed to the powder feeding port, and the conveying quantity of the developer is ensured.
The further scheme is that one end of the feeding piece, which is close to the shell, is provided with at least two feeding parts, and a first storage part is formed between two adjacent feeding parts; an extension plate is arranged in the shell, a transmission port is formed between the extension plate and the peripheral wall of the shell, and the free ends of the elastic blades can be abutted on the extension plate.
Therefore, the first storage part is formed by the supply part and the peripheral wall of the shell, so that the structure of the developer supply container is simple, the extending plate is arranged to guide the flow of the developer, the developer is ensured to rotate in a preset direction, and the amount of the developer entering the second storage part each time can be regulated.
In a further aspect, the extension plate is located at an upstream end of the transfer port in a rotation direction of the elastic blade, and a free end of the elastic blade is capable of passing through the transfer port.
Therefore, the free end of the elastic potential energy accumulated by the elastic blade can push more developer to the developer storage part when passing through the conveying port, so that the conveying amount of the developer is improved.
Still further, be provided with the powder mouth that send on the flashboard, when the flashboard is located the open position, send the powder mouth to just set up to the powder mouth, and preferably, send the cross-sectional area of powder mouth to be less than the cross-sectional area of powder mouth.
In this way, it is ensured that the developer entering the developer storage portion can effectively pass through the powder feeding port and be conveyed out of the developer supply container.
In a further scheme, the length of the elastic blade is smaller than the length of the powder outlet along the axial direction of the shaft rotating part. In this way, it is ensured that the free end of the elastic blade can pass through the toner outlet and abut against the shutter, thereby applying a force to the developer located on the shutter.
Further, the amount of the developer passing through the powder feeding port is 18-22 g every one minute of rotation of the stirring device. Thus, the amount of powder fed per minute of the developer supply container can be ensured.
In a further aspect, the developer supply container further includes a transmission assembly that receives the rotational force output from the supply member and drives the shaft rotating member to rotate.
Therefore, the stirring device is driven to rotate through the transmission assembly, so that the stirring device and the feeding piece can be ensured to synchronously rotate, namely, when the developer supply container rotates, the stirring device synchronously rotates, and the developer is ensured to be stirred by the stirring device after entering the developer storage part, and the developer is ensured to be kept in a fluffy state in the second storage part.
The transmission assembly comprises a driving wheel, a rotating shaft of the driving wheel is connected with the feeding piece, the driving wheel drives the driven wheel to rotate, and the rotating shaft is fixedly connected to the driven wheel.
Therefore, the rotating shaft of the driving wheel is connected with the feeding piece and drives the driven wheel to rotate, so that the rotation synchronism of the stirring device and the feeding piece can be effectively ensured.
In a further scheme, one end of the feeding piece, which is close to the driving wheel, is provided with a shaft hole, and the rotating shaft of the driving wheel is inserted into the shaft hole.
Therefore, the feeding piece and the driving wheel are matched through the shaft holes to realize transmission, and the reliability and the synchronism of the transmission can be improved.
Still further, the rotation direction of the stirring device is the same as the rotation direction of the feeding member, and the rotation speed ratio of the stirring device to the feeding member is 4:1 to 5: 1.
In this way, after the developer enters the developer storage portion, the developer is stirred by the stirring device in the same direction as the rotation of the feeding member, so that the developer is sufficiently stirred and kept in a fluffy state. In addition, since the developer is conveyed to the first storage part by the feeding part and has certain inertia, the developer enters the developer storage part and is stirred by the stirring device with the same rotation direction, and the conveying amount of the developer is improved.
Drawings
Fig. 1 is a structural exploded view of a conventional developer supply container.
Fig. 2 is a partial sectional view of a conventional developer supply container.
Fig. 3 is a structural view of an embodiment of the developer supply container of the present invention.
Fig. 4 is a structural exploded view of a hidden receiving cylinder of the developer supply container embodiment of the present invention.
Fig. 5 is an enlarged view of the structure of the hidden receiving cylinder in the developer supply container embodiment of the present invention.
Fig. 6 is a structural exploded view of a housing and shutter of an embodiment of the developer supply container of the present invention.
Fig. 7 is an enlarged view of the structure of the housing cylinder, the outer cover, and the gear cover hidden in the developer supply container of the present invention.
Fig. 8 is an exploded view of the transmission assembly and the stirring device in the developer supply container embodiment of the present invention.
Fig. 9 is an enlarged view of the structure of the stirring device in the developer supply container embodiment of the present invention.
Fig. 10 is an enlarged view of the structure of the supply member in the developer supply container embodiment of the present invention.
Fig. 11 is an exploded view of the first view of the supply member, the transmission assembly and the stirring device in an embodiment of the developer supply container of the present invention.
Fig. 12 is an exploded view of the supply member, the transmission assembly and the stirring device from a second perspective in an embodiment of the developer supply container of the present invention.
Fig. 13 is a structural view of a first view of a housing of an embodiment of a developer supply container of the invention.
Fig. 14 is a structural view of a second view of the housing of the developer supply container embodiment of the invention.
Fig. 15 is a partial cross-sectional view of an embodiment of the developer supply container of the invention in a first state.
Fig. 16 is a partial cross-sectional view of an embodiment of the developer supply container of the invention in a second state.
The invention is further described below with reference to the drawings and examples.
Detailed Description
The developer supply container of the present invention may be mounted in an image processing unit of an electrophotographic type image forming apparatus, and preferably, the developer supply container is detachably mounted in the electrophotographic type image forming apparatus, and the developer supply container contains therein a developer such as toner, which can flow out from the developer supply container and develop an electrostatic latent image formed on the image processing unit to form a visible image on a medium such as paper.
Referring to fig. 3, the developer supply container of the present embodiment has a substantially cylindrical housing cylinder 10, the housing cylinder 10 including a cylindrical body 11, a spiral guide groove 12 formed in a peripheral wall of the cylindrical body 11, the guide groove 12 being recessed from a peripheral wall surface of the cylindrical body 11 toward an axis of the cylindrical body 11. A housing 20 and an outer cover 18 are provided at one end of the housing tube 10, and the outer cover 18 covers the housing 20. As can be seen from fig. 3, the guide groove 11 is provided spirally and obliquely from one end far from the casing 20 to one end near the casing 20, and thus, when the casing 10 rotates, the developer in the casing 10 is continuously moved to one side of the casing 20 by pushing the guide groove 11, and is sent out of the casing 10.
In this embodiment, the end of the cylinder 11 far from the housing 20 is closed, but the end near the housing 20 is provided with an opening, and the end of the cylinder 11 near the housing 10 is provided with a sleeve 13, preferably, the sleeve 13 is sleeved on the circumferential outside of the open end of the cylinder 11. Referring to fig. 4, a ring of teeth 14 as a driving force receiving portion of the present embodiment is provided on an outer surface of the sleeve 13, and the teeth 14 can receive a driving force output from a driving member of the electrophotographic image forming apparatus, for example, the driving member is a gear which meshes with the teeth 14 and which rotates to rotate the teeth 14 and thus the sleeve 13.
The inner wall of the sleeve 13 is provided with two locking grooves 15, the outer peripheral wall of the opening end of the cylinder 11 is provided with a stress piece, the stress piece is inserted into the locking grooves 15, and when the sleeve 13 rotates, the cylinder 11 synchronously rotates along with the sleeve 13.
The accommodating cylinder 10 is internally provided with a feeding member 40, specifically, the feeding member 40 is a stirring frame, one end of the feeding member 40 is provided with two fixing sheets 43, the inner wall of the cylinder 11 is provided with two clamping grooves, and the fixing sheets 43 are clamped in the clamping grooves of the inner wall of the cylinder 11. When the drum 11 rotates, the feeding member 40 will rotate in synchronization with the drum 11. Therefore, the sleeve 13, the cylinder 11 and the feeder 40 will rotate synchronously, i.e. at the same rotational speed and in the same rotational direction.
The housing 20 is disposed at one end of the accommodating cylinder 10, but the housing 20 does not rotate along with the accommodating cylinder 10, and the outer cover 18 is buckled at one side of the housing 20. Referring to fig. 5 and 6, a powder outlet 24 is provided on one sidewall of the housing 20, and the developer of the accommodating cartridge 10 is transferred to the housing 20 through the feeding member 40 and can be discharged from the powder outlet 24. In order to prevent the developer from flowing out of the powder outlet 24 before the developer supply container is not mounted to the electrophotographic image forming apparatus, a shutter 35 is provided on one side wall of the housing 20, and a powder feed port 37 is provided on the shutter 35, as can be seen from fig. 6, the powder outlet 24 is square, the powder feed port 37 is circular, and the area of the powder feed port 37 is smaller than the area of the powder outlet 24.
The shutter 35 is movable relative to the housing 20, and therefore, a catch 36 is provided on both sides of the shutter 36, a chute is provided on both sides of the housing 20, and the catch 36 is slidable within the chute 20. Before the developer supply container is not mounted to the electrophotographic image forming apparatus, the powder feed port 37 does not overlap with the powder discharge port 24, i.e., the powder feed port 37 does not face the powder discharge port 34, so that outflow of the developer can be avoided. When the developer supply container is mounted to the electrophotographic image forming apparatus, a driving member in the electrophotographic image forming apparatus moves the shutter 35 and causes the powder feeding port 37 to face the powder outlet port 24, as shown in fig. 5. When the housing cylinder 10 is rotated, the developer can enter other parts of the electrophotographic image forming apparatus through the toner outlet 24 and the toner feed port 37, and after development, form desired characters and patterns on a medium such as paper.
Since the developer is easily accumulated at the powder outlet 24 after being sent to the housing 20 by the feeding member 40, the supply of the developer is easily blocked, and therefore, in this embodiment, the stirring device is provided in the housing, and the developer entering the housing 20 is sufficiently stirred by the stirring device so that the developer can smoothly pass through the powder outlet 24 and the powder feeding port 37.
Referring to fig. 4, 7 and 8, a stirring assembly is provided within the housing 20, the stirring assembly including a housing assembly 50 and a drive assembly 60 disposed within the housing assembly 50, the stirring assembly further including a stirring device 64 disposed within the housing 20. The housing assembly 50 includes a gear seat 51, one end of the gear seat 51 is open, and a gear cover 55 is closed at the open end, however, a sealing ring may be disposed between the gear cover 55 and the gear seat 51, for example, a sponge body disposed along the outer contour of the gear cover 55 is disposed as the sealing ring.
The transmission assembly 60 includes a driving wheel 61 and a driven wheel 63, and as shown in fig. 9, the stirring assembly 64 includes a driven wheel 65, a rotating shaft 66 and an elastic blade 67, the driving wheel 61 is engaged with the driven wheel 63 and drives the driven wheel 63 to rotate, and the driven wheel 63 is engaged with the driven wheel 65 and drives the driven wheel 65 to rotate. The driven wheel 65 is fixedly connected to the rotating shaft 66, and the elastic blade 67 is fixed to the rotating shaft 66, so that when the driving wheel 61 rotates, the driven wheel 63 and the driven wheel 65 are sequentially driven to rotate, and the elastic blade 67 is driven to rotate around the axis of the rotating shaft 66.
In this embodiment, the elastic blade 67 of the stirring device 64 is fixed on the rotating shaft 66, and in practical application, if the stirring device is configured as a frame structure, for example, the stirring device has an annular frame, a rod is disposed in the frame as a shaft rotating member, and the elastic blade is fixed on the shaft rotating member, and when the frame rotates, the shaft rotating member is driven to rotate, thereby driving the elastic blade to rotate. It will be appreciated that the shaft 66 of the present embodiment is a special shaft rotating member.
In this embodiment, the driving wheel 60 is driven to rotate by the feeding member 40. Referring to fig. 10 to 12, the feeding member 40 has a plate body 41, and a plurality of guide ribs 42 are formed on both side surfaces of the plate body 41, respectively, each guide rib 42 extending from the surface of the plate body 41 to both sides. The extending direction of the guide rib 42 is inclined to the axial direction of the housing tube 10, and when the housing tube 10 rotates, the developer moves toward the housing 20 by the guide of the guide rib 42, and the developer is continuously transferred from the cylinder 11 to one side of the housing 20. As can be seen in fig. 10, the fixing piece 43 is provided at one end of the plate 41, and preferably the fixing piece 43 is provided at one end of the plate 41 near the cylinder 11.
An axial hole 46 is provided at an end of the plate body 41 remote from the fixing piece 43, and a key is provided in the axial hole 46. Also, the gear seat 51 is mounted to one end of the housing 20, and a shaft hole 52 is provided on the bottom wall of the gear seat 51, and a rotation shaft 62 of the driving wheel 61 passes through the shaft hole 52 and is inserted into the shaft hole 46. As can be seen from fig. 11, the shaft 62 is a non-circular shaft, such that when the shaft 62 is inserted into the shaft hole 46, the driving wheel 61 is driven to rotate when the feeding member 40 rotates, thereby driving the stirring device 64 to rotate.
In the present embodiment, the rotation direction of the driving wheel 61 is the same as the rotation direction of the feeding member 40, and the rotation direction of the driven wheel 63 is opposite to the rotation direction of the feeding member 40, so that the rotation direction of the driven wheel 65 is the same as the rotation direction of the feeding member 40, that is, the rotation direction of the elastic blade 67 is the same as the rotation direction of the feeding member 40. Preferably, the rotation speed ratio of the stirring device 64 to the feeding member 40 is 4:1 to 5:1, i.e. every time the feeding member 40 rotates, the stirring device 64 rotates 4 to 5 turns, and further, the rotation speed ratio of the stirring device 64 to the feeding member 40 is 4.5:1, i.e. one revolution of the feed member 40, the stirring device 64 rotates 4.5 revolutions.
In this embodiment, the elastic blade 67 is one piece, and the middle part of the elastic blade 67 in the length direction is fixed on the rotating shaft 66, that is, the middle part of the elastic blade 67 is a fixed end, and both ends in the length direction are free ends. The elastic blade 67 is elastically deformed when rotated, and a large stirring power can be applied to the developer, so that the developer is sufficiently stirred.
In addition, the feeding member 40 is provided with two feeding portions 45 at one end away from the fixing piece 43, the two feeding portions 45 are each quarter-round, and the two feeding portions 45 are each disposed circumferentially outward of the shaft hole 46.
Referring to fig. 13 and 14, the housing 20 has an arc-shaped peripheral wall 21, and one end of the housing 20 is provided with a bottom plate 30, a support plate 23 is provided on a side of the bottom plate 30 near the peripheral wall 21, the support plate 23 and the bottom plate 30 are parallel to each other, and a gap 34 is formed between the support plate 23 and the bottom plate 30, and a shutter 35 is installed in the gap 34 and can reciprocate in the gap 34, so that the shutter 35 opens or closes the powder outlet 24.
The peripheral wall 21 of the housing 20 encloses a housing chamber 25, and the housing chamber 25 is open at both ends in the axial direction of the housing cylinder 10, and the gear seat 51 is mounted at one open end of the housing chamber 25. One end of the feeding member 40 may be installed into the accommodating chamber 25, and thus, the developer is to be fed into the accommodating chamber 25. In order to avoid leakage of the developer in the accommodating chamber 25 from the gap between the housing 20 and the gear seat 51, as can be seen from fig. 4, a seal ring 57 is provided between the housing 20 and the gear seat 51, the outer contour of the seal ring 57 being identical to the outer contour of the gear seat 51. Preferably, the seal 57 is made of a sponge material. In addition, since the rotary shaft 61 of the driving wheel 61 is required to be inserted into the shaft hole 46 of the feeding member 40, in order to avoid leakage of the developer, an annular seal ring 58 is externally fitted to the rotary shaft 61, and the seal ring 58 abuts on the axially outer side of the shaft hole 46. Preferably, the seal 58 is also made of a sponge material.
As shown in fig. 8, three screw holes 22 are formed radially outside the peripheral wall 21 of the housing 20, three through holes 53 are correspondingly formed in the outer wall of the gear seat 51, three through holes 56 are also formed in the gear cover 55, screws are used to pass through the through holes 53 of the gear seat 51 and the through holes 56 of the gear cover 56, and the screws are screwed into the screw holes 22, so that the gear cover 55, the gear seat 51 and the housing 20 are fixed.
The powder outlet 24 is provided on the support plate 23, an extension plate 26 is provided on a side of the accommodating chamber 25 near the powder outlet 24, the extension plate 26 is bent and extended from an inner surface of the peripheral wall 21 toward the powder outlet 24 side, and only one end of the extension plate 26 is connected to the peripheral wall 21, and the other end of the extension plate 26 is not connected to the peripheral wall 21 to form a transfer port 27, and as seen from fig. 13 and 14, the transfer port 27 is a gap formed between the extension plate 26 and the peripheral wall 21, and in this embodiment, the accommodating chamber 25 is a cavity with both ends open surrounded by the peripheral wall 21, the extension plate 26, and the transfer port 27. And, the extension plate 26 is located radially outside the feeding portion 45 with the axis of the feeding member 40 as a center, that is, the diameter of the extension plate 26 is larger than the diameter at the outer edge of the feeding portion 45. This avoids the extension plate 26 obstructing the rotation of the feed member 40.
A developer storage portion 32 is formed on a side of the extension plate 26 near the toner outlet 24, and the developer entered into the accommodating chamber 25 can be sent into the developer storage portion 32 through the conveying port 27 and conveyed to the toner outlet 24. Referring to fig. 15, one end of the feeding member 40 is located in the accommodating chamber 25, specifically, both feeding portions 45 are located in the accommodating chamber 25, and a gap is provided between the radial outer contour of both feeding portions 45 and the peripheral wall 21 of the housing 20 so that the feeding portions 45 rotate in the accommodating chamber 25.
When the accommodating tube 10 rotates, the developer is driven by the feeding member 40 and conveyed along the guide rib 42 to an end near the feeding portion 45, and at this time, the developer enters the accommodating chamber 25, as can be seen from fig. 15, the adjacent two feeding portions 45 and the peripheral wall 21 of the housing 20 enclose the first storage portion 31, and after entering the accommodating chamber 25, the developer is actually conveyed to the first storage portion 31. Since the feeding member 40 is provided with two feeding portions 45, two first storage portions 31 are formed in the accommodating chamber 25. The two side walls at the two ends in the circumferential direction of each first storage portion 31 are two end walls of two supply portions 45 with the axis of the shaft hole 46 as the center line, for example, the two side walls of the first storage portion 31 in the upper left corner in fig. 15 are an end wall 47 of one supply portion 45 and an end wall 48 of the other supply portion 45, respectively. As the feeding member 40 rotates, the first storage portion 31 also rotates along the axis of the housing tube 10.
After the developer supply device is mounted to the electrophotographic image forming apparatus, the first storage portion 31 is located above the communication of the transfer port 27, that is, in the state shown in fig. 15, since the first storage portion 31 is communicated with the transfer port 27 and the transfer port 27 is located below the first storage portion 31, the developer is transferred to the first storage portion 31, and then passes through the transfer port 27 and enters the developer storage portion 32 by gravity. In this embodiment, the developer storage portion 32 is a second storage portion.
In addition, the toner outlet 24 of the housing 20 is located below the developer storage portion 32, so that the developer can pass through the toner outlet 24 from the developer storage portion 32 under the action of gravity, and then be discharged out of the developer supply container through the toner feed port 37, and be fed to other components of the electrophotographic image forming apparatus.
Since the developer is easily accumulated in the developer storage portion 32, the developer is formed into a lump and is not easily sent out of the powder outlet 24, and therefore the stirring device 64 is provided in the developer storage portion 24 and rotates following the feeding member 40, thereby stirring the developer in the developer storage portion 32, avoiding accumulation of the developer.
In the present embodiment, the rotation direction of the stirring device 64 is the same as the rotation direction of the feeding member 40, that is, the arrow direction in fig. 15, and the stirring device 64 sufficiently stirs the developer after the developer enters the developer storage portion 32 from the first storage portion 31 through the conveying port 27. As can be seen from fig. 15, the central angle corresponding to the transfer port 27 is smaller than the central angle corresponding to the first reservoir 31 with one point of the axis of the housing 20 as the center, i.e., the length of the transfer port 27 is smaller than the length of the first reservoir 31 in the circumferential direction of the peripheral wall 21 of the housing 20. The length of the transmission port 27 is smaller, so that the situation that a large amount of developer is accumulated in the developer storage part 32 due to the fact that the developer in the first storage part 31 passes through the transmission port 27 quickly is avoided, and the developer sequentially enters the developer storage part 32 through the transmission port 27 in the process of rotating the first storage part 31 is effectively avoided.
In addition, on the projection of the plane where the powder outlet 24 is located, the projections of the conveying port 27 and the powder outlet 24 are not overlapped, so that the developer can pass through the powder outlet 24 only through a curved path after entering the developer storage portion 32 from the conveying port 27, the developer is prevented from rapidly entering the powder outlet 24, and the stirring device 64 is favorable for sufficiently stirring the developer. In other embodiments, the projection of the delivery port 27 and the outlet port 24 may be partially overlapping and at least partially non-overlapping, in the projection of the plane in which the outlet port 24 lies.
In the present embodiment, the length of the elastic blade 67 is long, and the free end of the elastic blade 67 can abut on the peripheral wall of the developer storage portion 32. As shown in fig. 15, one boss 29 is formed on the peripheral wall of the developer storage portion 32, the boss 29 extends from the inner surface of the peripheral wall of the developer storage portion 32 toward the axial direction of the developer storage portion, and the boss 29 is located at the upstream end of the toner outlet 24 in the rotational direction of the elastic blade 67. In this way, when the elastic blade 67 rotates, the free end of the elastic blade 67 will be blocked by the boss 29 to be elastically deformed, and store elastic potential energy. In addition, since the free ends of the elastic blades 67 can also abut on the peripheral wall of the developer storage portion 32, elastic deformation occurs, and elastic potential energy is accumulated. Of course, in other embodiments, the number of the protruding portions 29 may be more than two.
When the stirring device 64 continues to rotate and rotates to the state shown in fig. 16, the free ends of the elastic blades 67 pass through the powder outlet 24. Preferably, the length of the elastic blade 67 is smaller than the length of the powder outlet 24 in the axial direction of the rotating shaft 66 of the stirring device 64, so that the free end of the elastic blade 67 can extend to the powder outlet 24. As can be seen from fig. 16, the free ends of the elastic blades 67 can be brought into contact with the shutter 35 located below the toner outlet 24, thereby conveying the developer located on the shutter 35 into the toner feed port 37.
When the shutter 35 is in the open state, the powder feed port 37 is located directly below the powder outlet 24, i.e., the powder feed port 37 is disposed directly opposite to the powder outlet 24, and the area of the powder feed port 37 is smaller than the area of the powder outlet 24. In addition, be provided with sealing member 33 between powder outlet 24 and flashboard 35, sealing member 33's shape is the same as the shape of powder outlet 24, and the through-hole area in sealing member 33 middle part is greater than send powder mouth 37, avoids sealing member 33 to shelter from send powder mouth 37 and influence the conveying of developer.
As the stirring device 67 rotates, when the state of the elastic blade 67 is changed from the state shown in fig. 15 to the state shown in fig. 15, the accumulated elastic potential energy of the elastic blade 67 is released, a large force is applied to the developer on the shutter 35 and a large amount of developer is conveyed into the toner hopper 37, thereby ensuring the amount of developer passing through the toner hopper 37.
On the other hand, in the rotational direction of the elastic vane 67, the extension plate 26 is located at the upstream end of the transfer port 27, and 7 the free end of the elastic vane 67 can pass through the transfer port 27. As shown in fig. 16, when the free end of the elastic vane 67 is stopped by the extension plate 26 to be elastically deformed and accumulate elastic potential energy, the elastic potential energy of the elastic vane 67 is released when the free end of the elastic vane 67 reaches the transfer port 27, and applies a force to the developer passing through the transfer port 27 and pushes the developer into the developer storage portion 32, thereby securing the amount of the developer entering the developer storage portion 32. Through testing, with the embodiment, the amount of developer passing through the powder feeding port 37 is between 18 g and 22 g per one minute of rotation of the stirring device 64, and preferably, the amount of developer passing through the powder feeding port 37 is 20 g per one minute of rotation of the stirring device 64, so that the developer supply amount of the developer supply container can be ensured.
Finally, it should be emphasized that the present invention is not limited to the above embodiment, for example, the number of the elastic blades may be set to a plurality of pieces, and the plurality of pieces of elastic blades are uniformly arranged in the circumferential direction of the rotating shaft, in the above embodiment, the number of elastic blades is one piece, and the middle part of the elastic blade is fixed on the rotating shaft, and in practical application, the elastic blade may have one end fixed on the rotating shaft, and the other end has a free end abutting against the peripheral wall of the developer storage portion.
In this embodiment, the feeding member drives the stirring device to rotate through a plurality of gears, and in practical application, the transmission assembly may be a transmission assembly including a chain, a belt, a worm gear, and the like, and such a change is included in the protection scope of the claims of the present invention.
Claims (12)
1. A developer supply container comprising:
the device comprises a containing cylinder and a feeding piece arranged in the containing cylinder, wherein a driving force receiving part is arranged on the outer surface of the containing cylinder;
the shell is arranged at one end of the accommodating cylinder, the shell is provided with a powder outlet, the shell is detachably provided with a flashboard, and the flashboard can open and close the powder outlet;
the method is characterized in that:
the developer storage part is arranged in the shell and communicated with the powder outlet, the stirring device is arranged in the developer storage part and comprises a shaft rotating part and an elastic blade, the fixed end of the elastic blade is fixed on the shaft rotating part, and the free end of the elastic blade can penetrate through the powder outlet and is abutted against the flashboard.
2. The developer supply container according to claim 1, wherein:
the number of the elastic blades is more than two, and a plurality of the elastic blades are circumferentially arranged around the shaft rotating part.
3. The developer supply container according to claim 1 or 2, wherein:
at least one protruding portion is formed on a peripheral wall of the developer storage portion, the protruding portion extending from the peripheral wall of the developer storage portion toward an axial direction of the developer storage portion;
in the rotation direction of the elastic blade, the protruding part is positioned at the upstream end of the powder outlet.
4. The developer supply container according to claim 1 or 2, wherein:
at least two feeding parts are arranged at one end of the feeding part, which is close to the shell, and a first storage part is formed between two adjacent feeding parts;
an extension plate is arranged in the shell, and a transmission port is formed between the extension plate and the peripheral wall of the shell;
the free ends of the elastic blades can be abutted against the extension plate.
5. The developer supply container according to claim 4, wherein:
the extension plate is located at an upstream end of the transfer port in a rotation direction of the elastic blade, and a free end of the elastic blade may pass through the transfer port.
6. The developer supply container according to claim 1 or 2, wherein:
the flashboard is provided with a powder feeding port, and when the flashboard is positioned at the opening position, the powder feeding port is opposite to the powder outlet.
7. The developer supply container according to claim 6, wherein:
the cross-sectional area of the powder feeding port is smaller than that of the powder outlet.
8. The developer supply container according to claim 1 or 2, wherein:
and the length of the elastic blade is smaller than the length of the powder outlet along the axial direction of the shaft rotating part.
9. The developer supply container according to claim 6, wherein:
the amount of developer passing through the powder feeding port is 18-22 g when the stirring device rotates for one minute.
10. The developer supply container according to claim 1 or 2, wherein:
the developer supply container further includes a transmission assembly that receives the rotational force output from the supply member and drives the shaft rotating member to rotate.
11. The developer supply container according to claim 10, wherein:
the rotation direction of the stirring device is the same as the rotation direction of the feeding member.
12. The developer supply container according to claim 10, wherein:
the rotation speed ratio of the stirring device to the feeding piece is 4:1 to 5: 1.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910210735.XA CN109725518B (en) | 2019-03-20 | 2019-03-20 | Developer supply container |
| PCT/CN2020/075616 WO2020186954A1 (en) | 2019-03-20 | 2020-02-18 | Developer supply container and electrophotographic imaging device |
| US17/475,936 US11500304B2 (en) | 2019-03-20 | 2021-09-15 | Developer supply container and electrophotography imaging apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910210735.XA CN109725518B (en) | 2019-03-20 | 2019-03-20 | Developer supply container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109725518A CN109725518A (en) | 2019-05-07 |
| CN109725518B true CN109725518B (en) | 2023-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910210735.XA Active CN109725518B (en) | 2019-03-20 | 2019-03-20 | Developer supply container |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109725518B (en) |
| WO (1) | WO2020186954A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109725517B (en) * | 2019-03-20 | 2023-12-19 | 珠海天威飞马打印耗材有限公司 | Developer supply container |
| US11500304B2 (en) | 2019-03-20 | 2022-11-15 | Print-Rite ⋅ Unicorn Image Products Co., Ltd. Of Zhuhai | Developer supply container and electrophotography imaging apparatus |
| CN109725518B (en) * | 2019-03-20 | 2023-11-24 | 珠海天威飞马打印耗材有限公司 | Developer supply container |
| CN111562731A (en) * | 2020-06-09 | 2020-08-21 | 江西凯利德科技有限公司 | Developer supply device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109725518A (en) | 2019-05-07 |
| WO2020186954A1 (en) | 2020-09-24 |
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