CN202472246U - Doctor blade - Google Patents
Doctor blade Download PDFInfo
- Publication number
- CN202472246U CN202472246U CN2012200543875U CN201220054387U CN202472246U CN 202472246 U CN202472246 U CN 202472246U CN 2012200543875 U CN2012200543875 U CN 2012200543875U CN 201220054387 U CN201220054387 U CN 201220054387U CN 202472246 U CN202472246 U CN 202472246U
- Authority
- CN
- China
- Prior art keywords
- installation
- blade
- tool rest
- knife rest
- powder delivery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a doctor blade. The doctor blade comprises a tool rest and a blade, wherein installation blocks are arranged on the two short sides of the tool rest; a tool rest position adjustment hole is formed on a long side; an installation hole is formed in each installation block; an installation groove is also formed in one of the installation blocks; the blade is provided with an installation part and an extension part; the installation part is arranged on the tool rest; the extension part extends out of the tool rest; a contact part is formed at the end of the extension part; and open grooves are formed at the two ends of the contact part. The pressure between the doctor blade and a developing roller can be adjusted very conveniently by the tool rest position adjustment hole, so that the toner outlet amount is controlled and the printing blackness is adjusted; and in addition, the installation groove and the open grooves are formed to facilitate the installation of the doctor blade.
Description
Technical field
The utility model relates to a kind of powder delivery cutter, belongs to the printing consumables technical field.
Background technology
In the structure of laser printer; The powder delivery cutter always with the developer roll friction, so be a kind of parts of easy consume, but the powder delivery cutter is used to control the powder outlet quantity of developer roll; Be directly connected to the quality of printing effect, so that the quality of powder delivery cutter and installation accuracy all seem is particularly important.
After the powder delivery cutter that uses now was installed on the box body, major part all can't be regulated, and leaks powder easily; If the dimensional discrepancy of alignment error or part itself takes place, will make after the blade installation, inhomogeneous with the surface of contact of developer roll; Surface of contact too hour can influence printing effect; When surface of contact is too big, just destroy blade and developer roll easily.
Summary of the invention
For addressing the above problem, the utility model provides a kind of powder delivery cutter, and it is simple in structure, easy to adjust and can effectively prevent the leak-stopping powder.
The utility model is that the technical scheme that its problem of solution is adopted is:
A kind of powder delivery cutter comprises knife rest and blade, and said knife rest two short brinks are provided with mounting blocks, and a long side is provided with the knife rest position adjustment hole, and said mounting blocks is provided with a mounting hole, also is provided with mounting groove on one of them mounting blocks; Said blade is provided with installation portion and extension, and said installation portion is installed on the knife rest, and said extension stretches out knife rest, and its end is provided with contact site, and said contact site two ends are provided with fluting.
As preferably, said mounting groove is a hook formation, can very simply conducting strip be fixed like this, prevent conducting strip in transit or come off during work cause conducting electricity bad.
As preferably, the angle of said extension and installation portion is 120 ° ~ 140 °, 80 ° ~ 100 ° of the angles of said extension and contact site.
The beneficial effect of the utility model is: can adjust the pressure between powder delivery cutter and the developer roll very easily through the knife rest position adjustment hole, thus the control powder outlet quantity, blackness is printed in adjustment; In addition, also being provided with mounting groove and fluting installs to make things convenient for the powder delivery cutter.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
Fig. 1 is the structural drawing of the utility model powder delivery cutter;
Fig. 2 is the enlarged drawing of A portion among Fig. 1;
Fig. 3 is the scheme of installation of the utility model powder delivery cutter and developer roll.
Embodiment
A kind of powder delivery cutter shown in accompanying drawing 1; Comprise knife rest 1 and blade 2,1 liang of short brink of said knife rest is provided with mounting blocks 11, one long sides and is provided with knife rest position adjustment hole 12; On this knife rest position adjustment hole 12 screw is installed; The degree of depth through screw is screwed into is adjusted the pressure between powder delivery cutter and the developer roll, the control powder outlet quantity, thus realize printing the adjustment of blackness.Said mounting blocks 11 is fixed on the knife rest 1, which is provided with a mounting hole 13, in mounting hole 13, is screwed into screw, so that the powder delivery cutter is fixed in the powder box.
One of them mounting blocks 11 is provided with mounting groove 14, and mounting groove 14 is used to install conducting strip 3, and said conducting strip 3 is electrically connected with blade 2, thereby can improve 2 electronegative amounts of blade, makes negative charge enough on the carbon dust band, avoids the carbon dust waste and guarantees print quality.Preferably, said mounting groove 14 is a hook formation, can very simply conducting strip 3 be fixed like this, prevent conducting strip 3 in transit or work the time come off cause conducting electricity bad.
Said blade 2 is provided with installation portion 21 and extension 22, and said extension 22 is 120 ° ~ 140 ° with the angle of installation portion 21.Said installation portion 21 can be installed in through the mode of screw or viscose on the knife rest 1, and said extension 22 stretches out knife rest 1, and its end is provided with the contact site 23 that contacts with developer roll 4,80 ° ~ 100 ° of the angles of extension 22 and contact site 23.Specifically, said contact site 23 two ends are provided with fluting 24, shown in accompanying drawing 2.
Shown in accompanying drawing 3, on the said blade 2 seal 25 is installed, be used to prevent that the slit between blade 2 and the box body from taking place to leak powder, said seal 25 is sponge and felt.Sponge wherein one side sticks on the non-rubbing surface of blade 2, covers whole piece blade 2, and the one side relative with stickup face is fitted on the box body; Felt laterally is installed on the blade 2; Block the slit between powder delivery cutter and the box side wall; And felt bottom surface and sponge are fitted, and its joint place is positioned on the fluting 24, and felt just can not be by contact site 23 jack-up like this; Make felt to press airtightly, guarantee that carbon dust can not leak from the positive still side of powder delivery cutter with the sponge surface.
Above instructions is said, is merely the principle and the embodiment of the utility model, and every essence according to the utility model is carried out any simple modification and variation, all belongs within the desired protection domain of the utility model.
Claims (4)
1. powder delivery cutter; Comprise knife rest (1) and blade (2); It is characterized in that said knife rest (1) two short brink is provided with mounting blocks (11), a long side is provided with knife rest position adjustment hole (12); Said mounting blocks (11) is provided with a mounting hole (13), also is provided with mounting groove (14) on one of them mounting blocks (11); Said blade (2) is provided with installation portion (21) and extension (22); Said installation portion (21) is installed on the knife rest (1); Said extension (22) stretches out knife rest (1), and its end is provided with contact site (23), and said contact site (23) two ends are provided with fluting (24).
2. a kind of powder delivery cutter according to claim 1 is characterized in that said mounting groove (14) is a hook formation.
3. a kind of powder delivery cutter according to claim 1 is characterized in that the said extension (22) and the angle of installation portion (21) are 120 ° ~ 140 °.
4. a kind of powder delivery cutter according to claim 1 is characterized in that 80 ° ~ 100 ° of the angles of said extension (22) and contact site (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200543875U CN202472246U (en) | 2012-02-20 | 2012-02-20 | Doctor blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200543875U CN202472246U (en) | 2012-02-20 | 2012-02-20 | Doctor blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202472246U true CN202472246U (en) | 2012-10-03 |
Family
ID=46920390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200543875U Expired - Fee Related CN202472246U (en) | 2012-02-20 | 2012-02-20 | Doctor blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202472246U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108572528A (en) * | 2017-03-09 | 2018-09-25 | 纳思达股份有限公司 | A kind of method for remanufacturing of powder outlet cutter, Delevoping cartridge and Delevoping cartridge |
-
2012
- 2012-02-20 CN CN2012200543875U patent/CN202472246U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108572528A (en) * | 2017-03-09 | 2018-09-25 | 纳思达股份有限公司 | A kind of method for remanufacturing of powder outlet cutter, Delevoping cartridge and Delevoping cartridge |
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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: 20121003 Termination date: 20150220 |
|
| EXPY | Termination of patent right or utility model |