CN209400860U - A kind of powder drum - Google Patents
A kind of powder drum Download PDFInfo
- Publication number
- CN209400860U CN209400860U CN201920313006.2U CN201920313006U CN209400860U CN 209400860 U CN209400860 U CN 209400860U CN 201920313006 U CN201920313006 U CN 201920313006U CN 209400860 U CN209400860 U CN 209400860U
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- China
- Prior art keywords
- powder drum
- positioning region
- end cap
- guidance part
- forming apparatus
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Abstract
The utility model provides a kind of powder drum, it is detachably arranged in image forming apparatus, including powder drum main body and end cap, powder drum body matter receives developer, end cap is mounted on one end of powder drum main body, end cap is provided with guidance part, and guidance part guiding powder drum is installed to image forming apparatus, and positioning region is arranged in the top of guidance part in the axial direction of powder drum main body.Powder drum rotate powder feeding during, positioning region relative image formed device abutting at it is static, keep positioning region and the positioning stablity for abutting place reliable, at the same also simplify in image forming apparatus with the matched structure in positioning region.
Description
[technical field]
The utility model relates to a kind of powder drums.
[background technique]
Currently, image forming apparatus is usually internally provided with powder drum, powder drum is detachably arranged in image device, image shape
Electrostatic latent image is formed on photosensitive element at device, developer is attached to electrostatic latent image, keeps electrostatic latent image visual, and powder drum is image
It forms device and the developer or carbon dust of imaging is provided.
As depicted in figs. 1 and 2, powder drum 1 include powder drum main body 10 and end cap 11,10 inner containment developer of powder drum main body,
Powder drum main body 10 includes positioning region 12, gear 14 and transport unit 15；Transport unit 15 is the axial rings along powder drum main body around powder drum master
The spiral grooves that body is formed, during powder drum main body rotates, developer is axially transmitted along spiral grooves；Gear 14 is located at powder drum
Main body 10 receives the driving force of image forming apparatus, makes powder drum main body 10 with gear 14 containing the one end for going out powder opening, gear 14
It rotates together；Positioning region 12 is located at the other end of powder drum main body 10, and positioning region 12 is abutted with image forming apparatus, thus axial fixed
Position powder drum 1.End cap 11 is mounted on one end of powder drum main body 10, covers gear 14, and 11 bottom of end cap is provided with guidance part 13, guides
Portion 13 guides powder drum and is installed to image forming apparatus.Guidance part 13 are formed in the groove of 11 bottom of end cap.
When powder drum works in image forming apparatus, powder drum rotation is also revolved so that 12 relative image of positioning region forms device
Turn；The rotation of positioning region 12 can accelerate positioning region to abut the abrasion at place with image forming apparatus, and then influence image forming apparatus
To the axially position of powder drum, powder drum is made to have the risk of axial float.
[utility model content]
The utility model embodiment provides a kind of powder drum, to solve the problems, such as that axially position is insecure in existing powder drum.
A kind of powder drum, is detachably arranged in image forming apparatus, including powder drum main body and end cap, and powder drum body matter is received
Developer, end cap are mounted on one end of powder drum main body, and end cap is provided with guidance part, and guidance part guiding powder drum is installed to image and is formed
Device, characterized in that positioning region is arranged in the top of guidance part in the axial direction of powder drum main body.
The positioning region is the back-off of cantilever.
The guidance part and positioning region are made into integration.
The bottom setting guidance part of end cap and positioning region.
There are two guidance part and two positioning regions for the opposite setting in the bottom of end cap.
Guidance part is the groove for being formed in end cap bottom, and positioning region is formed in groove top.
Guide ramp is provided with before and after positioning region in the axial direction.
The periphery of end cap has the opening of a pair of opposing, is open for avoiding protruding portion in image forming apparatus.
After using above-mentioned technical proposal, after powder drum is installed to image forming apparatus, the not opposite figure in the positioning region of powder drum
It is rotated at abutting as forming device, positioning region with described contacts stationary contact, abuts place with described to reduce positioning region
Abrasion, keep positioning region and the positioning stablity for abutting place reliable, at the same also simplify in image forming apparatus with positioning region
Matched structure.
[Detailed description of the invention]
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention, right
For those of ordinary skill in the art, without any creative labor, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is the schematic diagram of powder drum in the prior art；
Fig. 2 is the scheme of installation of powder drum main body and end cap in the prior art；
Fig. 3 is the schematic diagram of powder drum in the utility model；
Fig. 4 is the structure chart of end cap in the utility model；
Fig. 5 is the main view of end cap in the utility model；
The cross-sectional view that Fig. 6 is end cap A-A in Fig. 5 in the utility model；
Fig. 7 is the main view that powder drum is installed to image forming apparatus in the utility model；
Fig. 8 is the side view that powder drum is installed to image forming apparatus in the utility model.
[specific embodiment]
In order to better understand the technical solution of the utility model, the utility model embodiment is carried out with reference to the accompanying drawing
Detailed description.
It will be appreciated that the described embodiments are only a part of the embodiments of the utility model, rather than whole implementation
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
The all other embodiment obtained, fall within the protection scope of the utility model.
In the utility model, image forming apparatus is identical with background technique, powder drum in addition to the structure of special instruction, remaining
Structure is identical with background technique.
As shown in figure 3, powder drum 2 includes powder drum main body 20 and end cap 21,20 inner containment developer of powder drum main body, powder drum master
Body 20 includes gear (not shown) and transport unit 25；Transport unit 25 is the axial rings along powder drum main body around 20 shape of powder drum main body
At spiral grooves, powder drum main body 20 rotate during, developer along spiral grooves axially transmit.End cap 21 is mounted on powder drum
One end of main body 20,21 bottom of end cap are provided with guidance part 23 and positioning region 22, and guidance part 23 guides powder drum and is installed to image shape
At device.Guidance part 23 is the groove for being formed in 21 bottom of end cap.Positioning region 22 is located at the top of guidance part 23,22 shape of positioning region
At on the top of the groove.
As shown in Figure 4-Figure 6, positioning region 22 is the back-off of cantilever, and there are two guidance parts for the opposite setting in 21 bottom of end cap
23, positioning region 22 is arranged in the top of guidance part 23 in the axial direction.Guidance part 23 and positioning region 22 are made into integration, guidance part 23 and fixed
Position portion 22 is made of ABS plastic.The periphery of positioning region 22 and end cap 21 forms cantilever, i.e. back-off is arranged in the top of cantilever, fixed
Clearance G is formed between position portion 22 and the periphery of end cap 21.The periphery of end cap 21 has the opening 24 of a pair of opposing, opening
For avoiding protruding portion in image forming apparatus.Opening 24 is axially extended from the edge of end cap.
Positioning region 22 is axially extending from guidance part 23, vertically and in axially direction, 22 elastically deformable of positioning region,
Guidance part 23 is connected with the periphery of end cap 21, has clearance G between positioning region 22 and the periphery of end cap 21, clearance G is for keeping away
Allow 22 flexible deformation of positioning region.The front and back of positioning region 22 is provided with guide ramp 22a and 22b in the axial direction, thus in powder drum
It is installed to image forming apparatus or contacts with the position portion of image forming apparatus during the image forming apparatus disassembly, into
And position portion squeezes positioning region 22, makes the elasticity evacuation of positioning region 22.Positioning region 22 is flushed with guidance part 23 in the axial direction, positioning
Portion 22 extends from the channel bottom on one side to be flushed with the both sides of the groove.
As shown in Figure 7 and Figure 8, the leader 3 of image forming apparatus is engaged with the guidance part 23 of powder drum 2, guides powder drum 2
Installation.When powder drum 2 is installed, the guide ramp 22a of 22 front end of positioning region is abutted with guidance part 3,22 elasticity evacuation guiding of positioning region
Part 3.After powder drum is installed to image forming apparatus, guide ramp 22a and the leader 3 of positioning region 22 are disengaged, and are made
22 elasticity of positioning region is restored, and positioning region 22 is contacted with the end face of leader 3 in the axial direction at this time, thus positioning region 22 and guiding
Part 3 is clamped.
Groove is formed between guidance part 23 and the periphery of end cap 21, edge of the groove far from periphery can be with leader
The matching of 3 center dants, the recess portion edge of leader 3 is matched with the groove.
When powder drum is dismantled from image forming apparatus, guide ramp 22b and the leader 3 of 22 rear end of positioning region are supported
It connects, 22 elasticity evacuation leader 3 of positioning region, so that powder drum 2 can be dismantled smoothly from image forming apparatus.
Guidance part 3 in image forming apparatus be in image forming apparatus with the matched position portion in positioning region, thus greatly
The structure for simplifying the position portion in image forming apparatus greatly realizes the guidance part in image forming apparatus while realizing and leads
Draw the function with positioning.
Powder drum is positioned by positioning end cap in the utility model, to substantially reduce image forming apparatus to powder drum main body
The demand of positioning is abutted, i.e., powder drum main body abuts auxiliary positioning with image forming apparatus or do not abut, and then substantially reduces image
The pressure between device and powder drum main body is formed, abrasion positioning region is effectively solved the problems, such as and causes axial float.
Positioning region can also be located at other positions of end cap in this implementation, as being located between the top or top and bottom of end cap
Region；Guidance part may be protrusion, and positioning region is located at the back-off of the cantilever on the protrusion top.Positioning region is also not limited to
Guidance part, other positions that can be clamped with image forming apparatus of end cap can also be used to setting positioning region, and specific location is according to figure
Change as forming device internal structure.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent substitution, improvement and etc. done should be included in the utility model
Within the scope of protection.
Claims (8)
1. a kind of powder drum, is detachably arranged in image forming apparatus, including powder drum main body and end cap, powder drum body matter is received aobvious
Shadow agent, end cap are mounted on one end of powder drum main body, and end cap is provided with guidance part, and guidance part guiding powder drum is installed to image and forms dress
It sets, characterized in that positioning region is arranged in the top of guidance part in the axial direction of powder drum main body.
2. powder drum as described in claim 1, characterized in that the positioning region is the back-off of cantilever.
3. powder drum as claimed in claim 2, characterized in that the guidance part and positioning region are made into integration.
4. powder drum as claimed in claim 2, characterized in that the bottom setting guidance part of end cap and positioning region.
5. powder drum as claimed in claim 4, characterized in that there are two guidance part and two are fixed for the opposite setting in the bottom of end cap
Position portion.
6. powder drum as claimed in claim 4, characterized in that guidance part is the groove for being formed in end cap bottom, and positioning region is formed
On groove top.
7. powder drum as claimed in claim 2, characterized in that be provided with guide ramp before and after positioning region in the axial direction.
8. powder drum as claimed in claim 2, characterized in that the periphery of end cap has the opening of a pair of opposing, and opening is used
The protruding portion in evacuation image forming apparatus.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018204409105 | 2018-03-28 | ||
| CN201820440910 | 2018-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209400860U true CN209400860U (en) | 2019-09-17 |
Family
ID=67899726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920313006.2U Active CN209400860U (en) | 2018-03-28 | 2019-03-12 | A kind of powder drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209400860U (en) |
-
2019
- 2019-03-12 CN CN201920313006.2U patent/CN209400860U/en active Active
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