CN101817254A - Electronic pneumatic powder-spraying device - Google Patents
Electronic pneumatic powder-spraying device Download PDFInfo
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- CN101817254A CN101817254A CN 201010136647 CN201010136647A CN101817254A CN 101817254 A CN101817254 A CN 101817254A CN 201010136647 CN201010136647 CN 201010136647 CN 201010136647 A CN201010136647 A CN 201010136647A CN 101817254 A CN101817254 A CN 101817254A
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Abstract
The invention relates to an electronic pneumatic powder-spraying device matched with an offset press. The electronic pneumatic powder-spraying device comprises a powder storage box, a quantitative powder-conveying mechanism, a powder-guiding mechanism, a powder-spraying distributor, a nozzle assembly and an air compressor, wherein the input end of the quantitative powder conveying mechanism is connected with the powder storage box, the output end of the quantitative powder-conveying mechanism and the input end of the powder-guiding mechanism correspond to each other and form a tiny clearance distance in between, the output end of the powder-guiding mechanism is connected with a powder-inputting main pipeline of the powder-spraying distributor, the powder-inputting main pipeline of the powder-spraying distributor is connected with powder-outputting branch pipelines of the powder-spraying distributor, the powder-outputting branch pipelines of the powder-spraying distributor are connected with a nozzle, and the air compressor is respectively connected with a loopback-type airflow passage in a powder-guiding mechanism assembly and an airflow main pipe in the nozzle assembly. The electronic pneumatic powder-spraying device is designed to have adjustable powder-conveying amount, relatively adjustable powder-spraying range and even and exquisite powder-spraying density. Compared with the prior art, the invention has the advantages of powder saving, even and exquisite powder spraying, smooth powder-spraying transmission, and the like, thereby being suitable for various printed matter amplitudes.
Description
Technical field
The present invention relates to the dusting device of printing technology, particularly a kind of supporting electronic pneumatic powder-spraying device of offset press that is used for.
Background technology
In printing industry, the time that printed matter carries out the back manufacturing procedure, The faster the better, but be subjected to the restriction of ink setting speed and dry run required time; Particularly need to use more printing ink or paper to absorb the printed matter of the poor-performing of printing ink, because printing ink can not get drying for a long time, thereby cause the paper set-off or with pile in just printed printed matter stick together, cause the breakage of printing surface, using offset printing to dust in this case is a very important quality assurance link.
Offset printing is dusted just as spacer separates paper, provides sufficient drying time to printing ink, has guaranteed the printing quality of printed matter.Therefore how effectively to improve the offset printing technology of dusting, be promote offset press general technical level important composition partly.
Offset printing dust the most key technology be pulvis can be controlled, even in the print range, printing time of regulation, equivalent, fine and smoothly form one deck at printed matter surface effectively and can protect the printed matter surface quality not hinder the bisque of impression again; form separation layer for just printed printing is brilliant; the height of pile, weight constantly increase in printing-flow; between paper, play buffer action all the time but dust, guaranteed finishing of printed matter surface printing ink oxidization dry run.
The main drawback of domestic existing offset printing dusting device is at present: the direction and the amount of dusting of dusting can not give effective regulation and control, it is extremely inhomogeneous to cause pulvis to spray, the spraying scope can not get effective control, cause printed matter surface heap powder or scarce powder, have a strong impact on the quality of printed matter, and because the air stream drives effect, dust flies upward everywhere, the offset press surrounding enviroment are produced severe contamination, the class of offset press itself is greatly reduced.
Summary of the invention
The objective of the invention is to design that a kind of powder sending quantity is adjustable, the scope of dusting is controlled relatively, the electronic pneumatic powder-spraying device of the density of dusting uniform and smooth.
In order to achieve the above object, the present invention adopts following technical solution: a kind of electronically controlled pneumatic dusting device, it is characterized in that it comprises storage powder box, pulvis apron quantitive conveyor structure, pulvis introducing mechanism, the distributor that dusts, injector assembly and air compressor, wherein:
Described pulvis apron quantitive conveyor structure comprises stepper motor, powder feeding groove guide wheel, sawtooth scraper plate and guide wheel case, the stepper motor output shaft connects powder feeding groove guide wheel, powder feeding groove guide wheel is contained in the guide wheel case, described guide wheel case is provided with the pulvis import and export, the import of guide wheel case is connected with the outlet of storage powder box by funnel, the sawtooth scraper plate is located at the exit of guide wheel case, and tangent with the groove in the powder feeding groove guide wheel;
Described pulvis introducing mechanism comprises the trumpet type powder funnel, air-flow imports tube and mushroom base, described mushroom base is a seat body hollow, profile is shape structure with a tight waist, shape structure with a tight waist imports tube inwall formation loopback formula gas channel with the air-flow that is assemblied on the mushroom base, loopback formula gas channel is connected with the air compressor gas outlet, described trumpet type powder funnel is bearing in the top that air-flow imports tube, trumpet type funnel inlet is corresponding with the outlet of described guide wheel case, and leave the slight clearance distance between the two, trumpet type powder funnel bottom extension extend in the mushroom base mesopore, the trumpet type powder funnel, air-flow imports tube and the crossing matching part of mushroom base three is provided with the slit that allows air communication cross, and described slit is connected with loopback formula gas channel;
The described distributor that dusts comprises pulvis input total pipeline and some pulvis output branch pipe(tube)s, pulvis input total pipeline and some pulvis output branch pipe(tube)s are located on the dispense font of dusting, pulvis input total pipeline output is connected with each pulvis output branch pipe(tube) input, and pulvis input total pipeline input is connected with described pulvis introducing mechanism output;
Described injector assembly comprises air-flow house steward, plurality of nozzles and plurality of nozzles protective cover; the air-flow house steward really is provided with some air stream outlets; nozzle guard is located on the air stream outlet; nozzle arrangement is arranged on air-flow house steward's the air stream outlet; and cover by the nozzle guard cover; the nozzle guard cover is provided with some gas outlets, and gas outlet and nozzle meal outlet are in a certain angle, and the nozzle input port is connected with corresponding pulvis output branch pipe(tube) output in the described distributor that dusts by the tracheae that dusts.
The pulvis output branch pipe(tube) that is connected with each two nozzle that is positioned at the left and right both sides of air-flow house steward is provided with magnetic valve.It can be according to paper width, selects corresponding solenoid valve to open or close, and makes to dust and the printing format width matches
Described powder feeding groove guide wheel is meant the guide wheel that is provided with some circular groove structures on guide pulley surface, described sawtooth scraper plate is meant the scraper plate that is provided with some zigzag scraping articles on the one side of scraper plate, described scraping article matches with groove on the guide wheel, scraping article can be scraped pulvis from the guide wheel groove, allow pulvis send from the outlet of guide wheel case.
Owing to adopt step motor control, powder outlet quantity can be controlled by the rotating speed of regulating stepper motor, utilize the groove of powder feeding guide wheel simultaneously, make the powder amount of powder delivery even; In addition, adopt air-flow that conveying is received in even mixing of pulvis and negative pressure, make the density uniform and smooth of sending of dusting; In addition, because nozzle possesses the gas curtain structure, the scope of dusting is controlled relatively.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in further detail.
Fig. 1 is a present embodiment structural principle schematic diagram.
The structural representation that Fig. 2 forms for the pulvis apron quantitive conveyor structure in the present embodiment, pulvis introducing mechanism and the distributor that dusts.
Fig. 3 is the injector assembly structural representation in the present embodiment.
Fig. 4 is the structural representation that nozzle and nozzle guard cover are formed.
The specific embodiment
As shown in Figure 1, present embodiment comprises storage powder box 1, pulvis apron quantitive conveyor structure 2, pulvis introducing mechanism 3, the distributor 4 that dusts, injector assembly 5 and air compressor 6, wherein:
As shown in Figure 2, described pulvis apron quantitive conveyor structure 2 comprises stepper motor, powder feeding groove guide wheel 9, sawtooth scraper plate 11 and guide wheel case 10.Described stepper motor output shaft connects powder feeding groove guide wheel 9, powder groove guide wheel 9 is contained in the guide wheel case 10, described guide wheel case 10 is provided with the pulvis import and export, the import of guide wheel case 10 is connected with 1 outlet of storage powder box by funnel 8, sawtooth scraper plate 11 is located at the exit of guide wheel case 10, and tangent with the groove in the powder feeding groove guide wheel.Described powder feeding groove guide wheel 9 is meant the guide wheel that is provided with some circular groove structures on guide pulley surface, described sawtooth scraper plate 11 is meant the scraper plate that is provided with some zigzag scraping articles on the one side of scraper plate, described scraping article matches with groove on the guide wheel, scraping article can be scraped pulvis from the guide wheel groove, allow pulvis send from the outlet of guide wheel case 10.
As shown in Figure 2, described pulvis introducing mechanism 3 comprises trumpet type powder funnel 12, air-flow imports tube 14 and mushroom base 16, described mushroom base 16 is a seat body hollow, profile is shape structure with a tight waist, shape structure with a tight waist imports tube 14 inwalls formation loopback formula gas channel 15 with the air-flow that is assemblied on the mushroom base, loopback formula gas channel 15 is connected with air compressor 6 gas outlets, described trumpet type powder funnel 12 is bearing in the top that air-flow imports tube 14, trumpet type funnel 12 inlets are corresponding with the outlet of described guide wheel case 10, and leave the slight clearance distance between the two, trumpet type powder funnel 12 bottom extensions extend in the mushroom base mesopore, trumpet type powder funnel 12, air-flow imports tube 14 and the crossing matching part of mushroom base 16 threes is provided with the slit 13 that allows air communication cross, and described slit 13 is connected with loopback formula gas channel 15;
As shown in Figure 2, the described distributor 4 that dusts comprises pulvis input total pipeline 17 and some pulvis output branch pipe(tube)s 19, pulvis input total pipeline 17 and some pulvis output branch pipe(tube)s 19 are located on the dispense font 20 of dusting, pulvis input total pipeline 17 outputs are connected with each pulvis output branch pipe(tube) 19 input, and pulvis input total pipeline 19 inputs are connected with described pulvis introducing mechanism 3 outputs;
As shown in Figure 3, Figure 4; described injector assembly 5 comprises air-flow house steward 25, plurality of nozzles 7 and plurality of nozzles protective cover 23; air-flow house steward 25 is provided with some air stream outlets 22; nozzle guard cover 23 is located on the air stream outlet 22; nozzle 7 arranged are on air-flow house steward's air stream outlet 22; and cover by nozzle guard cover 23; nozzle guard cover 23 is provided with some gas outlets 24; gas outlet 24 is in a certain angle with nozzle meal outlet 27, and nozzle input port 26 is connected with corresponding pulvis output branch pipe(tube) 19 outputs in the described distributor that dusts by the tracheae 21 that dusts.
Again as shown in Figure 2, the pulvis output branch pipe(tube) that is connected with each two nozzle that is positioned at air-flow house steward 25 left and right both sides is provided with magnetic valve 18.It can be according to paper width, selects corresponding solenoid valve to open or close, and makes to dust and the printing format width matches, applicable to different printed matter breadths.
During use, pulvis in the storage powder box is under the effect of self gravitation and the rotation of groove guide wheel, taken out of the groove from the guide wheel wheel surface, the pulvis that from groove, comes out, scraped by sawtooth scraper plate 11, drop in the trumpet type funnel 12 of pulvis introducing mechanism 3, air-flow from air compressor 6 passes through the bigger loopback formula air flue in pulvis introducing mechanism inner space earlier, under the squeezing action of follow-up air-flow, by the powerful downwards derivation of slit 13 passages, produce negative pressure at mushroom base lumen, thereby the air to slit periphery above between pulvis apron quantitive conveyor structure 2 and the pulvis introducing mechanism 3 forms the power of receiving, make the pulvis that drops in the pulvis introducing mechanism horn mouth along with air-flow is inhaled into, and with after source of the gas in the system mixes, import to the pulvis input total pipeline 17 in the distributor 4 that dusts, be fitted on each pulvis output branch pipe(tube) 19 by pulvis input total pipeline 17 flow point that will dust then; Every the stream that dusts on each pulvis output branch pipe(tube) sprays from respective nozzle by the tracheae 21 that dusts; simultaneously cross the two side outlets ejection of air-flow house steward 25 and air stream outlet 22 from each nozzle guard cover 23 from the air communication of air compressor 6; form protection gas curtain 28; this protection gas curtain forms protection to the stream that dusts that sprays from nozzle; pulvis can only be fallen on the printed matter, and restriction is dusted and is spread to periphery.
In sum, the present invention compared with prior art has the following advantages:
1, saves the powder amount. Because that adopts stepper motor regulation and control powder sending quantity and groove scraping article advances the powder structural design, compare with the traditional, pneumatic duster and can save powder amount 70%.
2, dust even, fine and smooth. Owing to adopt air-flow that pulvis is evenly mixed, make the output of dusting even, fine and smooth.
3, dust and carry smooth and easyly, put in place in time. Owing to adopting negative pressure to receive and the directed conveying of air-flow, making the conveying of dusting have certain speed, the conveying of dusting is smooth and easy, puts in place in time.
4, applicable to different printed matter breadths. Because the pulvis conveyance conduit of each two nozzle on the left and right both sides of injector assembly can be opened or close by magnetic valve, therefore, during use, can select corresponding nozzle number according to the printed matter breadth, making dusts matches with the printing format width.
5, pollute obviously minimizing. Because nozzle possesses the gas curtain structure, the stream that dusts is fallen on the printed matter exactly, the scope of dusting is relatively controlled, and dust can not fly upward everywhere, and the pollution of printing machine and surrounding enviroment thereof is obviously reduced.
Claims (3)
1. an electronically controlled pneumatic dusting device is characterized in that it comprises storage powder box (1), pulvis apron quantitive conveyor structure (2), pulvis introducing mechanism (3), the distributor that dusts (4), injector assembly (5) and air compressor (6), wherein:
Described pulvis apron quantitive conveyor structure (2) comprises stepper motor, powder feeding groove guide wheel (9), sawtooth scraper plate (11) and guide wheel case (10), the stepper motor output shaft connects powder feeding groove guide wheel (9), powder feeding groove guide wheel (9) is contained in the guide wheel case (10), described guide wheel case (10) is provided with the pulvis import and export, the import of guide wheel case (10) is connected with storage powder box (1) outlet by funnel (8), sawtooth scraper plate (11) is located at the exit of guide wheel case (10), and tangent with the groove in the powder feeding groove guide wheel;
Described pulvis introducing mechanism (3) comprises trumpet type powder funnel (12), air-flow imports tube (14) and mushroom base (16), described mushroom base (16) is a seat body hollow, profile is shape structure with a tight waist, shape structure with a tight waist imports tube (14) inwall formation loopback formula gas channel (15) with the air-flow that is assemblied on the mushroom base, loopback formula gas channel (15) is connected with air compressor (6) gas outlet, described trumpet type powder funnel (12) is bearing in the top that air-flow imports tube (14), trumpet type funnel (12) inlet is corresponding with the outlet of described guide wheel case (10), and leave the slight clearance distance between the two, trumpet type powder funnel (12) bottom extension extend in the mushroom base mesopore, trumpet type powder funnel (12), air-flow imports tube (14) and the crossing matching part of mushroom base (16) three is provided with the slit (13) that allows air communication cross, and described slit (13) are connected with loopback formula gas channel (15);
The described distributor that dusts (4) comprises pulvis input total pipeline (17) and some pulvis output branch pipe(tube)s (19), pulvis input total pipeline (17) and some pulvis output branch pipe(tube)s (19) are located on the dispense font of dusting (20), pulvis input total pipeline (17) output is connected with each pulvis output branch pipe(tube) (19) input, and pulvis input total pipeline (19) input is connected with described pulvis introducing mechanism (3) output;
Described injector assembly (5) comprises air-flow house steward (25); plurality of nozzles (7) and plurality of nozzles protective cover (23); air-flow house steward (25) is provided with some air stream outlets (22); nozzle guard cover (23) is located on the air stream outlet (22); nozzle (7) arranged is on air-flow house steward's air stream outlet (22); and cover by nozzle guard cover (23); nozzle guard cover (23) is provided with some gas outlets (24); gas outlet (24) is in a certain angle with nozzle meal outlet (27), and nozzle input port (26) are connected with corresponding pulvis output branch pipe(tube) (19) output in the described distributor that dusts by the tracheae that dusts (21).
2. electronically controlled pneumatic dusting device according to claim 1 is characterized in that the pulvis output branch pipe(tube) that is connected with each two nozzle that is positioned at the left and right both sides of air-flow house steward (25) is provided with magnetic valve (18).
3. electronically controlled pneumatic dusting device according to claim 2, it is characterized in that described powder feeding groove guide wheel (9) is meant the guide wheel that is provided with some circular groove structures on guide pulley surface, described sawtooth scraper plate (11) is meant the scraper plate that is provided with some zigzag scraping articles on the one side of scraper plate, described scraping article matches with groove on the guide wheel, scraping article can be scraped pulvis from the guide wheel groove, allow pulvis send from the outlet of guide wheel case (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010136647 CN101817254A (en) | 2010-03-28 | 2010-03-28 | Electronic pneumatic powder-spraying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010136647 CN101817254A (en) | 2010-03-28 | 2010-03-28 | Electronic pneumatic powder-spraying device |
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| CN101817254A true CN101817254A (en) | 2010-09-01 |
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| CN 201010136647 Pending CN101817254A (en) | 2010-03-28 | 2010-03-28 | Electronic pneumatic powder-spraying device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102407658A (en) * | 2010-09-23 | 2012-04-11 | 海德堡印刷机械股份公司 | Device For Powdering Sheets |
| CN104290442A (en) * | 2013-07-17 | 2015-01-21 | 海德堡印刷机械股份公司 | Powder spraying device |
| CN105269950A (en) * | 2014-06-20 | 2016-01-27 | 海德堡印刷机械股份公司 | Powder apparatus for printing machine |
| CN111942018A (en) * | 2019-05-16 | 2020-11-17 | 海德堡印刷机械股份公司 | Powder applying equipment |
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| CN1842365A (en) * | 2004-09-02 | 2006-10-04 | 魏特曼和康拉德两合公司 | Device and method for producing powder-air mixture |
| CN200995517Y (en) * | 2007-01-14 | 2007-12-26 | 滕兴鸿 | High-pressure atomizing powder sprayer |
| CN101164777A (en) * | 2006-10-20 | 2008-04-23 | 海德堡印刷机械股份公司 | Method for controlling a powder sprayer |
| CN201597242U (en) * | 2010-03-28 | 2010-10-06 | 滕兴鸿 | Electronic pneumatic powder spraying device |
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2010
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| DE19937557A1 (en) * | 1998-08-10 | 2000-03-09 | Weitmann & Konrad Fa | Powder/air mixer comprises funnel through which powder falls by gravity into center of an air stream |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102407658A (en) * | 2010-09-23 | 2012-04-11 | 海德堡印刷机械股份公司 | Device For Powdering Sheets |
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| CN104290442A (en) * | 2013-07-17 | 2015-01-21 | 海德堡印刷机械股份公司 | Powder spraying device |
| CN104290442B (en) * | 2013-07-17 | 2018-07-10 | 海德堡印刷机械股份公司 | Powder device |
| CN105269950A (en) * | 2014-06-20 | 2016-01-27 | 海德堡印刷机械股份公司 | Powder apparatus for printing machine |
| CN111942018A (en) * | 2019-05-16 | 2020-11-17 | 海德堡印刷机械股份公司 | Powder applying equipment |
| CN111942018B (en) * | 2019-05-16 | 2023-10-20 | 海德堡印刷机械股份公司 | Powder applying equipment |
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Open date: 20100901 |