CN201837833U - Carbon powder tube for electronic photographic imaging device - Google Patents
Carbon powder tube for electronic photographic imaging device Download PDFInfo
- Publication number
- CN201837833U CN201837833U CN2010205559866U CN201020555986U CN201837833U CN 201837833 U CN201837833 U CN 201837833U CN 2010205559866 U CN2010205559866 U CN 2010205559866U CN 201020555986 U CN201020555986 U CN 201020555986U CN 201837833 U CN201837833 U CN 201837833U
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- cylindrical shell
- carbon dust
- cover
- flight
- tube
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Abstract
The utility model relates to a carbon powder tube for an electronic photographic imaging device, which comprises a tube body and a tube cover fixed on the tube body. A powder outlet which connects the inner cavity of the tube body with the outside is arranged on the tube cover. A sealing element which is formed by an inner cover and an outer cover is arranged in the powder outlet. The sealing element controls the opening/closing of the powder outlet. A spiral powder pushing piece is arranged in the inner cavity of the tube body, is extended along the axial direction of the tube body and is attached to the inner wall of the tube body. The powder pushing piece is formed by a plurality of sections of spiral pieces which are connected end to end. One end of one section of the spiral piece is provided with a tenon along the peripheral direction of the tube body, while the other end thereof is provided with a mortise which corresponds to the tenon. The tenon of one section of the spiral piece is inserted into the mortise of the adjacent section of the spiral piece. The central angle of the corresponding arc length of the single section of the spiral piece is smaller than 360 degrees. The carbon power tube can effectively reduce the carbon powder quantity which is left in the tube body after work.
Description
Technical field
The utility model relates to and is removably installed in the carbon dust tube that is used to hold the mobile powder developer of carbon dust and so in the electrophotographic imaging forming apparatus, especially for the carbon dust tube that holds carbon dust in the laser copier.
Background technology
The carbon dust tube is to be used for the electrophotographic image forming kind equipment, and for example laser copier is supplied the tank of mobile carbon dust and so on developer.The carbon dust tube that is used for laser copier is installed in the developing apparatus of laser copier with dismountable form, by the meal outlet of carbon dust tube being docked on the powder inlet of laser copier developing apparatus, carbon dust in the carbon dust tube is fed in the developing chamber of developing apparatus, carbon dust is delivered to equably on the photosensitive drums that is arranged at developing apparatus by the developer roll that is arranged in developing chamber then, finish of the conversion of photosensitive drum surface electrostatic latent image, finally make its photographic fixing on recording mediums such as paper to carbon dust form visual image.
Usually, the component parts of aforementioned carbon dust tube comprises: the bigger cylindrical hollow cylindrical shell of the cylindrical substantially diameter of outward appearance, and outward appearance approaches the cover of aforementioned cylindrical shell substantially.
Wherein, cylindrical shell generally adopts plastics to prepare in the blowing mode, and therefore this cylindrical shell is the complete individual components of a continuous distribution on constituting.Cover is placed on drum shaft with spiral matching way or wedge shape buckle fit system and provides on the opening of path to being that carbon dust is mobile.This opening is positioned at the cylindrical shell end, can be described as nozzle.At the corresponding position of cover, be provided with corresponding opening equally, this opening is that carbon dust flows out into necessary channel in the developing chamber of developing apparatus through nozzle in cylindrical shell, is called meal outlet.On this meal outlet, be provided with to have and close and/or the seal of the function of breaking seal.Under the situation in the developing apparatus that the carbon dust tube is connected to laser copier, seal is opened meal outlet, set up the carbon dust flow passage to the laser copier developing apparatus from cylinder lumen, the carbon dust of storage is discharged and is admitted to the developing chamber of developing apparatus stand-by from nozzle in the carbon dust tube; Meanwhile, the sealing part still is a power transmission member, is also bearing and is accepting the rotary torque that laser copier produces, and this rotary torque is passed to cylindrical shell to order about the task of this cylindrical shell rotation.
Aforementioned carbon dust tube is when work, and its cylindrical shell rotates under the effect of laser copier Power Drive Unit, is distributed with the flat board that runs through through hole on the surface and is placed on inner barrel.In the cylindrical shell rotary course, be distributed in the interior carbon dust of cylindrical shell under the effect of gravity, the through hole that distributes through dull and stereotyped upper edge fixed-direction travels forward, thereby arrives the meal outlet of carbon dust tube.Be assembled in the process of inner barrel at flat board, must keep certain clearance between flat board and the cylinder inboard wall and be beneficial to assembling.In addition, retain bigger distance between through hole on the flat board and the cylinder inboard wall, thereby make the carbon dust in this segment distance bigger residual quantity can occur, and can not arrive meal outlet, form waste.
In addition, being used for controlling seal that carbon dust tube meal outlet opened/closed state mainly contains by two columniform inner covers and outer cover and constitutes.Inner cover inserts in the outer cover.The same position of inner cover and outer cover circumferencial direction is respectively arranged with openings.When inner cover was twitched in outer cover inside vertically, the openings on inner cover and the outer cover formed the state that staggers mutually or align mutually, thereby realizes the On/Off of carbon dust tube meal outlet by this alignment or the state that staggers.Above-mentioned inner cover is to realize by the axostylus axostyle that is arranged at inner cover axis position in the inner formed twitch of outer cover.Axostylus axostyle is the pipe form, and the one end is resisted against helical spring one end, and the other end is connected with the drive link that penetrates from outer cover by lock pin.The other end of helical spring is fixed on the fixture that inner barrel is provided with.So, under the situation in the developing apparatus that the carbon dust tube is connected to laser copier, drive link is subjected to the pushing and then the compressing axostylus axostyle of developing apparatus, and inner cover is moved inner formation of outer cover, cause openings on inner cover and the outer cover to be in the state of mutual alignment, the meal outlet of carbon dust tube is opened; Otherwise then close.The circular tube structure form of axostylus axostyle can be brought bigger difficulty to injection molded, and this is because when injection mold is loosed core, the easy flexural deformation of pipe, and it is freely stiff to cover on the assembling back in causing; On the other hand, when the assembling inner cover, need stop up the endoporus of pipe with glue, leak with the prevention carbon dust, this has just increased production process and glue materials, causes cost to increase; Moreover, also existing when stopping up the endoporus of pipe and leak hidden danger stifled or that do not block fully with glue, this also can form the bad phenomenon that carbon dust leaks.
Summary of the invention
At the problems referred to above, the utility model purpose is to provide a kind of carbon dust tube that laser copier holds carbon dust that is used for.The pushing away the powder sheet and can make by the mode of constituting and push away the powder sheet and be close within the cylindrical shell on the wall of this carbon dust tube, thus make carbon dust tube effective residual quantity of its inner barrel carbon dust of reduction after work.
For reaching to above-mentioned the utility model purpose, the utility model has taked to have the electrophotographic imaging forming apparatus carbon dust tube of following characteristics.It comprises cylindrical shell and the cover that is fixed on this cylindrical shell.Cover is provided with the meal outlet that is communicated with chamber and external environment condition within the cylindrical shell.Be provided with the seal that constitutes by inner cover and outer cover in the meal outlet.The On/Off of seal control meal outlet.Be provided with in the chamber within the cylindrical shell and extend axially and be posted by that the spirality on the wall pushes away the powder sheet within the cylindrical shell along cylindrical shell.This pushes away the powder sheet and is formed by connecting from beginning to end by some joint flights.The single-unit flight is provided with tenon and the other end is provided with the mortise corresponding with this tenon along an end of cylindrical shell circumferencial direction.The tenon of one joint on the flight is plugged in the mortise on the adjacent segments flight.The central angle of the arc length correspondence of single-unit flight is less than 360 deg.
Aforementioned electronic electrophotographic imager carbon dust tube, the end that its single-unit flight is provided with tenon also is provided with dog clutch, and the end that the single-unit flight is provided with mortise also is provided with hyoplastron.The dog clutch of one joint on the flight is snapped on the hyoplastron on the adjacent segments flight.
The utility model electrophotographic imaging forming apparatus carbon dust tube is the container that is used to hold the mobile powder developer of carbon dust and so on, and it is used for being the developing apparatus supply toner of laser copier.Be used for holding the cylindrical shell of the main storage space of carbon dust as the carbon dust tube, be provided with in its inner chamber and extend axially and be posted by that the spirality on the wall pushes away the powder sheet within the cylindrical shell along cylindrical shell.This pushes away the powder sheet and is made of by the array mode that the head and the tail tenon fourth of the twelve Earthly Branches connects some joint flights.Under this make, spirality pushes away the powder sheet and is close on the inwall of cylindrical shell, thereby make near the carbon dust of inwall under the state of carbon dust tube formation rotation, can be pushed the powder sheet fully and be transferred to meal outlet, reduced the carbon dust residual quantity of carbon dust tube inside after work; On the other hand, push away the mode that constitutes of powder sheet, can reduce its production equipment, be the complexity and the cost of manufacture of the structure of mould, can also make the adjustment that conforms to application request with regard to self length, with the carbon dust tube that is applicable to that length specification is different, thereby enlarge the scope of application that pushes away the powder sheet.
Description of drawings
Fig. 1 the utility model electrophotographic imaging forming apparatus carbon dust tube skeleton view.
Fig. 2 the utility model electrophotographic imaging forming apparatus carbon dust tube fragmentary, perspective view.
Fig. 3 the utility model electrophotographic imaging forming apparatus pushes away powder sheet skeleton view with the carbon dust tube.
Fig. 4 a the utility model electrophotographic imaging forming apparatus single-unit flight skeleton view one of carbon dust tube.
Fig. 4 b the utility model electrophotographic imaging forming apparatus single-unit flight skeleton view two of carbon dust tube.
Fig. 4 c the utility model electrophotographic imaging forming apparatus single-unit flight skeleton view three of carbon dust tube.
Fig. 5 the utility model electrophotographic imaging forming apparatus seal decomposition diagram of carbon dust tube.
Fig. 6 a the utility model electrophotographic imaging forming apparatus seal outer cover skeleton view one of carbon dust tube.
Fig. 6 b the utility model electrophotographic imaging forming apparatus seal outer cover skeleton view two of carbon dust tube.
Fig. 7 a the utility model electrophotographic imaging forming apparatus seal inner cover skeleton view one of carbon dust tube.
Fig. 7 b the utility model electrophotographic imaging forming apparatus seal inner cover skeleton view two of carbon dust tube.
Fig. 8 a the utility model electrophotographic imaging forming apparatus seal inner cover cut-open view one of carbon dust tube.
Fig. 8 b the utility model electrophotographic imaging forming apparatus seal inner cover cut-open view two of carbon dust tube.
Fig. 9 the utility model electrophotographic imaging forming apparatus seal packing ring skeleton view of carbon dust tube.
Embodiment
Describe the utility model electrophotographic imaging forming apparatus carbon dust tube in detail below in conjunction with accompanying drawing.
Referring to Fig. 1～9, the utility model electrophotographic imaging forming apparatus carbon dust tube and member skeleton view and cut-open view under different visual angles are shown respectively.
This carbon dust tube 100 comprises that cylindrical shell 101, cover 102, support 103, spirality push away powder sheet 104 and seal 105.They all adopt plastics to prepare with blowing or injection moulding mode.
The formation that the meal outlet that is used for controlling carbon dust tube 100 opened/closed the seal 105 of state mainly comprises two columniform inner covers 113 and outer cover 114.Inner cover 113 is in the inner chamber of the axial insertion outer cover 114 of cylindrical shell 101.Be respectively arranged with openings 115,116 at inner cover 113 and outer cover 114 along the same position of cylindrical shell 101 circumferencial directions.Axis position at inner cover 113 is provided with axostylus axostyle 117.Axostylus axostyle 117 is the solid gear that its gear teeth are outwards dispersed by the center along cylindrical shell 101 axial xsects.Axostylus axostyle 117 1 ends are fixedly connected on the inwall of end cap 118 of inner cover 113, and the other end is resisted against an axial end of helical spring (not shown).The axial other end of helical spring is maintained fixed with support 103 and is connected.Transitional pore 119 is offered at the position of wall on end cap 118 within axostylus axostyle 117 connection end caps 118.Transitional pore 119 is deep into the root that axostylus axostyle 117 connects wall within the end cap 118.The aperture of transitional pore 119 connects the root of wall within the end cap 118 less than axostylus axostyle 117.The root of wall has been offered the pin-and-hole 120 that radially connects along axostylus axostyle 117 within axostylus axostyle 117 connection end caps 118.Transitional pore 119 and pin-and-hole 120 intersect mutually.In the time of in the inner chamber that inner cover 113 is inserted outer cover 114, at first on the outer cylinder of inner cover 113, be nested with sponge sealing gasket 121, then inner cover 113 is inserted in outer cover 114 inner chambers, subsequently an end of drive link 122 is inserted in the transitional pore 119 via outer cover 114, re-use lock pin 123 and penetrate pin-and-hole 120, the insertion end of drive link 122 is fixed together with the root that axostylus axostyle 117 connects wall within the end cap 118, to finish the assembling of seal 105.Usually, finish under the state of assembling at inner cover 113 and outer cover 114, between the outer wall of drive link 122 and end cap 118, also add the liner 124 of rubber material, leak to the outside of cylindrical shell 101 in case the blocking powder enters in the transitional pore 119 via pin-and-hole 120, see Fig. 5～9.
When inner cover 113 is axially twitched in outer cover 114 inside along cylindrical shell 101, inner cover openings 115 and outer cover openings 116 form the state that staggers mutually or align mutually, thereby realize the On/Off of the meal outlet of carbon dust tube 100 by this alignment or the state that staggers.So, under the situation in the developing apparatus (not shown) that carbon dust tube 100 is connected to laser copier, drive link 122 is subjected to the pushing and then the compressing axostylus axostyle 117 of developing apparatus, and then drive inner cover 113 forms mobile in the inner chamber of outer cover 114, be in the state of mutual alignment until inner cover openings 115 and outer cover openings 116, the meal outlet of carbon dust tube 100 is opened, and carbon dust is in flowable dormant state; Otherwise then close.
Claims (2)
1. electrophotographic imaging forming apparatus carbon dust tube, comprise cylindrical shell and the cover that is fixed on the described cylindrical shell, described cover is provided with the meal outlet that is communicated with chamber and external environment condition within the described cylindrical shell, be provided with the seal that constitutes by inner cover and outer cover in the described meal outlet, described seal is controlled the On/Off of described meal outlet, it is characterized in that, be provided with in the chamber within the described cylindrical shell and extend axially and be posted by that the spirality on the wall pushes away the powder sheet within the described cylindrical shell along described cylindrical shell, the described powder sheet that pushes away is formed by connecting from beginning to end by some joint flights, the described flight of single-unit is provided with tenon and the other end is provided with the mortise corresponding with described tenon along an end of described cylindrical shell circumferencial direction, the described tenon of one joint on the described flight is plugged in the described mortise on the described flight of adjacent segments, and the central angle of the arc length correspondence of the described flight of single-unit is less than 360 deg.
2. according to the described electrophotographic imaging forming apparatus of claim 1 carbon dust tube, it is characterized in that, the described flight of single-unit also is provided with dog clutch corresponding to an end of described tenon, the described flight of single-unit also is provided with hyoplastron corresponding to an end of described mortise, and the described dog clutch of a joint on the described flight is snapped on the described hyoplastron on the described flight of adjacent segments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205559866U CN201837833U (en) | 2010-10-11 | 2010-10-11 | Carbon powder tube for electronic photographic imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205559866U CN201837833U (en) | 2010-10-11 | 2010-10-11 | Carbon powder tube for electronic photographic imaging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201837833U true CN201837833U (en) | 2011-05-18 |
Family
ID=44007939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205559866U Expired - Fee Related CN201837833U (en) | 2010-10-11 | 2010-10-11 | Carbon powder tube for electronic photographic imaging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201837833U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393618A (en) * | 2011-08-02 | 2012-03-28 | 马学文 | Powder feeding device of copier |
| CN102393619A (en) * | 2011-08-02 | 2012-03-28 | 马学文 | Sealed type powder feeding device of copier |
-
2010
- 2010-10-11 CN CN2010205559866U patent/CN201837833U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393618A (en) * | 2011-08-02 | 2012-03-28 | 马学文 | Powder feeding device of copier |
| CN102393619A (en) * | 2011-08-02 | 2012-03-28 | 马学文 | Sealed type powder feeding device of copier |
| CN102393618B (en) * | 2011-08-02 | 2014-02-26 | 马学文 | Powder feeding device of copier |
| CN102393619B (en) * | 2011-08-02 | 2014-05-07 | 马学文 | Sealed type powder feeding device of copier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20151011 |
|
| EXPY | Termination of patent right or utility model |