CN201922639U - Powder sprayer nozzle with after-blow - Google Patents
Powder sprayer nozzle with after-blow Download PDFInfo
- Publication number
- CN201922639U CN201922639U CN2010206606309U CN201020660630U CN201922639U CN 201922639 U CN201922639 U CN 201922639U CN 2010206606309 U CN2010206606309 U CN 2010206606309U CN 201020660630 U CN201020660630 U CN 201020660630U CN 201922639 U CN201922639 U CN 201922639U
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- powder
- tube
- powder spraying
- blow
- sprayer nozzle
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Abstract
The utility model relates to a powder sprayer nozzle with after-blow, which is used for a powder spraying device of an offset machine. The powder sprayer nozzle comprises a powder spraying tube; an after-blower tube is arranged below the powder spraying tube, a plurality of groups of small holes are arranged on the after-blower tube; and the position of every group of small holes corresponds to a powder outlet of the powder spraying tube. The after-blower tube is arranged close to the powder sprayer nozzle of a common powder spraying tube; the after-blower tube is provided with small inclined holes; high pressure air can be blown close to the powder sprayer nozzle of the powder spraying tube through the small inclined holes; the downward tapered powder can be scattered and blown to a printing product; therefore, the variation of powder amount due to the different distances between the printing product and the powder spraying tube of the powder spraying device can be prevented, so as to avoid the unevenness of the powder spraying amount.
Description
Technical field
The utility model relates to a kind of dust nozzle that has after-blow, is used for the dust nozzle of offset press dusting device.
Background technology
Existing a large amount of both at home and abroad in, in the high-speed offset press, when the printing ink trace is moist, enter next flow process for fear of paper, and cause by the adhesion of seal back side of paper, promptly cause the imprinting surface of this paper printing products destroyed, the set-off of last Zhang Yinpin paper, usually offset press is provided with the air dusting device, make in the collection process, by this air dusting device special-purpose powdery particulate material is sprayed on the printing surface with compressed air, thereby make these special powder particles under compressed-air actuated forceful action, on the not dry ink seal layer that viscosity is arranged, to guarantee print quality, therefore, the good and bad quality that directly influences printed matter of the performance of dusting device.
The dust nozzle of traditional offset press dusting device makes powder form the dust cloud of downward cone shape for being distributed in a limited number of several little hole nozzles on the discharge tube by gases at high pressure.Along with the carrying out of printing and the decline of pile, the distance between the dust nozzle of printing and dusting device is constantly variation, and it also is suddenly big or suddenly small that powder forms the projected area that the dust cloud of downward cone shape falls on the printing, causes the amount of dusting inhomogeneous.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of dust nozzle that has after-blow, and this dust nozzle is simple in structure, and it is even, effective to dust.
For overcoming the above problems, concrete technical scheme of the present utility model is as follows: a kind of dust nozzle that has after-blow, comprise discharge tube, below discharge tube, be provided with the after-blow pipe, and at the some groups of apertures that are provided with of after-blow pipe, the position of every group of aperture is corresponding with the meal outlet position of discharge tube.
The axis of described each aperture and the angle of horizontal plane are 15 °～50 °.
This dust nozzle that has after-blow is provided with the after-blow pipe near the discharge tube dust nozzle of routine, have oblique aperture on the after-blow pipe, gases at high pressure blow near the discharge tube dust nozzle by the oblique aperture on the after-blow pipe, fall on the printing after the dust cloud of downward cone shape dispelled, thereby can constantly not change and cause that the powder amount is suddenly big or suddenly small, avoid causing the amount of dusting inhomogeneous because of the distance between the discharge tube of printing and dusting device.
Description of drawings
Fig. 1 is the structural representation of eddy current type dust nozzle.
Fig. 2 is the A – A cutaway view of Fig. 1.
The specific embodiment
The dust nozzle of traditional dusting device is to be distributed in several little hole nozzle limited on the discharge tube, make powder form the dust cloud of downward cone shape by gases at high pressure, along with the carrying out of printing and the decline of pile, distance between the dust nozzle of printing and dusting device is constantly to change, powder forms the dust cloud of downward cone shape, the projected area of falling on the printing also is suddenly big or suddenly small, the projection that causes dust cloud to fall on the printing is overlapping, the overlapping area of its projection is also suddenly big or suddenly small, so the amount of dusting is inhomogeneous.
As shown in Figure 1, a kind of dust nozzle that has after-blow, comprise discharge tube 1, below discharge tube 1, be provided with after-blow pipe 2, and be provided with some groups of apertures 3 at after-blow pipe 2, the position of every group of aperture 3 is corresponding with the meal outlet position of discharge tube 1, and the diameter of every group of aperture, quantity and distance design according to the caliber size of discharge tube 1.
As shown in Figure 2, the axis of described each aperture 3 and horizontal plane angle are 15 °～50 °, can think 15 °, 30 °, 45 ° or 50 °.
Its principle is: gases at high pressure blow near the discharge tube dust nozzle by the oblique aperture on the after-blow pipe, fall on the printing after the dust cloud of downward cone shape dispelled, thereby can constantly not change and cause that the powder amount is suddenly big or suddenly small, avoid causing the amount of dusting inhomogeneous because of the distance between the discharge tube of printing and dusting device.
Claims (2)
1. dust nozzle that has after-blow, comprise discharge tube (1), it is characterized in that: be provided with after-blow pipe (2) in the below of discharge tube (1), and after-blow pipe (2) be provided with some groups of apertures (3), the position of every group of aperture (3) is corresponding with the meal outlet position of discharge tube (1).
2. the dust nozzle that has after-blow as claimed in claim 1 is characterized in that: the axis of described each aperture (3) and the angle of horizontal plane are 15 °～50 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206606309U CN201922639U (en) | 2010-12-15 | 2010-12-15 | Powder sprayer nozzle with after-blow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206606309U CN201922639U (en) | 2010-12-15 | 2010-12-15 | Powder sprayer nozzle with after-blow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201922639U true CN201922639U (en) | 2011-08-10 |
Family
ID=44426508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206606309U Expired - Fee Related CN201922639U (en) | 2010-12-15 | 2010-12-15 | Powder sprayer nozzle with after-blow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201922639U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108146094A (en) * | 2016-12-06 | 2018-06-12 | 海德堡印刷机械股份公司 | For giving the method for printing page sprinkling powder |
-
2010
- 2010-12-15 CN CN2010206606309U patent/CN201922639U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108146094A (en) * | 2016-12-06 | 2018-06-12 | 海德堡印刷机械股份公司 | For giving the method for printing page sprinkling powder |
| CN108146094B (en) * | 2016-12-06 | 2021-03-26 | 海德堡印刷机械股份公司 | Method for spraying powder on printed sheets |
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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: 20110810 Termination date: 20151215 |
|
| EXPY | Termination of patent right or utility model |