CN105690991B - For carrying out the method for dispensing powder to printed pages in printing machine - Google Patents
For carrying out the method for dispensing powder to printed pages in printing machine Download PDFInfo
- Publication number
- CN105690991B CN105690991B CN201510926296.4A CN201510926296A CN105690991B CN 105690991 B CN105690991 B CN 105690991B CN 201510926296 A CN201510926296 A CN 201510926296A CN 105690991 B CN105690991 B CN 105690991B
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- China
- Prior art keywords
- powder
- drive mode
- under
- printed pages
- air mixture
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/06—Powdering devices, e.g. for preventing set-off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Printing Methods (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Nozzles (AREA)
Abstract
The present invention relates to a kind of methods for dispensing powder to printed pages in printing machine, powder-air mixture is respectively wherein sprayed to the printed pages (15) with smaller page specification under the second drive mode to the printed pages (15) with larger page specification and simultaneously under the first drive mode by means of powder unit, while there is powder-air mixture volume flows of identical quantity in all export distributors (11) of the powder dispenser (10) of the powder unit under second drive mode.
Description
Technical field
The present invention relates to a kind of methods for carrying out dispensing powder to printed pages in printing machine, wherein by means of
Powder unit is under the first drive mode to tool to the printed pages with larger page specification and under the second drive mode
There are the printed pages of smaller page specification to spray powder-air mixture respectively.
Background technique
A kind of equipment is described in 10 2,011 115 616 A1 of DE, the equipment works according to such method.?
In the equipment, each nozzle is configured with shutoff valve, when nozzle is fully located on the inside of suction chamber, by means of the shutoff valve energy
Enough interrupt the supply of powder-air mixture to respective nozzle.
A kind of powder unit is described in 198 36 018 A1 of DE, in the powder unit, powder-air-is mixed
It closes object to be transported in ring distributor, in the ring distributor, which is assigned to multiple lists
On one pipeline, the mixture is supplied to single outlet nozzle via these single pipelines.These single pipelines can lead to
Valve is crossed to close, the valve can be operated by electromagnet.Single pipeline is closed by valve, so that one or more goes out
Mouth nozzle inactivation, so that powder unit be made to be matched with the page with smaller width.The power match of air pressure generator in
The quantity of activated outlet nozzle, so that (the wide page is sprayed by 12 nozzles) mentions in the case where wide page
It has supplied to the air capacity needed for this, also, (the narrow page is sprayed by six nozzles) conveys in the case where narrow page
Less air capacity, so that always to remain the volume of air ejected identical for each nozzle.Therefore it also ensures, each spray
It is identical that mouth is always to maintain the amount of powder that paving is spilt.That is, also reducing air pressure in the case where outlet nozzle quantity is reduced
The power of forcer.
A kind of powder unit is described in 199 01 245 A1 of DE, wherein it is connected to feeding pipe on the dispenser,
Powder jet is connected on the feeding pipe.Shutter equipped with referred to as shutter, the shutter can rhythmically from
Closed state is adjusted to opening state, and vice versa.
Summary of the invention
The task of the present invention is propose another spraying method.
The task is solved by the method for the feature according to the present invention.According to the present invention in printing machine
Printed pages are carried out to dispense in the method for powder, are advised under the first drive mode to larger page by means of powder unit
The printed pages of lattice and powder-sky is sprayed respectively to the printed pages of smaller page specification under the second drive mode
Gas-mixture, also, under the second drive mode, it is equipped in all export distributors of the powder dispenser of powder unit
Identical powder-air mixture volume flow in terms of numerical value.
According to the method for the present invention the advantages of, is: can cancel the powder in the prior art by the application of the method
Set shutoff valve in device.
The present invention also relates to a kind of powder unit, the powder unit constructs as described above and by according to this hair
Bright method is run.
Illustrate in the preferred embodiment according to the method for the present invention be advantageously improved scheme.In an improvement project
In, the total stream of powder-air mixture is divided into shunting in distributor, and in these shuntings, each shunting is directed to powder
The different powder jet of each in the nozzle arrangement of last device.Here, under the second drive mode, it is all in nozzle arrangement
Powder jet is sprayed.In addition, multiple powder jets of the spraying in nozzle arrangement pass through herein under the second drive mode
Common shutter is completely covered by multiple isolated shutters.
In another improvement project, powder-air mixture is assigned to and powder-sky under the second drive mode
Gas-mixture is under the first drive mode on the export distributor of identical quantity.
Detailed description of the invention
The scheme of being advantageously improved is obtained by the explanation and affiliated attached drawing of following example.
Fig. 1: powder unit carries out spraying powder to big page specification, and
Powder unit in Fig. 2: Fig. 1 carries out spraying powder to small page specification.
Specific embodiment
The powder unit shown in fig. 1 and 2 is arranged in the page collector of plane offset press and is used for
Printed pages are sprayed.Printed pages are conveyed through powder unit simultaneously by the chain conveyer of page collector when spraying
And the collection heap that page collector is placed on after spraying is stacked on.
Powder unit includes the tank 1 for including powder deposit 2.Tank 1 be in infundibulate or taper, also,
Powder deposit 2 constitutes perfusion column.The meter 3 with metering roll 4 is connected on the lower end of tank 1.From powder
The powder of end deposit 2 is entered due to gravity in meter 3, and the metering of roller 4 that is measured at this.The powder measured into
Enter into injector 5, the injector is connected to meter 3.In injector 5, powder and the pressure from pressure air pipeline 6
Power air mixes, to form powder-air mixture.
Powder-air mixture from injector 5 is entered in powder dispenser 10 by connecting line 8, the powder
Last distributor has a distributor entrance 9 and multiple export distributors 11.Connecting line 8 is connected on distributor entrance 9,
Also, it is connected to be configured to the feeding pipe 7 of hose-like on export distributor 11.
Jet rod 12 is arranged in the top of the conveyor zones of printed pages 15 and including a column nozzle head 13.Each nozzle
First 13 include one or preferred multiple powder jets 18, and powder-air mixture is in spray cone 14 by the powder jet respectively
Form is ejected into printed pages 15.Jet rod 12 is connect via a branch of feeding pipe 7 with powder dispenser 10.In each supply
Each different nozzle head in the nozzle head 13 is connected on pipeline 7.In powder dispenser 10, powder-air-mixing
Total stream GS of object, which is separated into, shunts TS, these quantity shunted correspond to the quantity of export distributor 11.Each shunting TS is logical
Each different export distributor in the export distributor 11 is crossed to flow out from powder dispenser 10.Only show in fig. 1 and 2
Total stream GS is shown to meaning property and is separated into shunting TS.
It is provided with shutter 16 on each end of jet rod 12, is located at accordingly processed page specification for covering
Powder jet 18 other than width.Above-mentioned two shutter 16 is respectively equipped with suction unit 17 and is used to aspirate extra powder,
Also, when specification reduces, above-mentioned two mutually direction of shutter 16 is adjusted, also, when specification expands, above-mentioned two to block
Plate 16 is located remotely from each other adjusting.
The first drive mode is shown in FIG. 1, under first drive mode, printed pages 15 have biggish page
It opens specification (such as maximum specification).Shutter 16 is adjusted to come out from the region of spray cone 14, thus the spray of whole nozzle heads 13
Pencil 14 strikes in printed pages 15.All shunting TS are flowed into nozzle head 13 by feeding pipe 7 --- each
There is each different shunting in the shunting TS in nozzle head 13.It shunts TS so to calculate, so that whole export distributors
The corresponding volume flow of powder-air mixture in 11 is identical in terms of numerical value.
The second drive mode is shown in FIG. 2, under second drive mode, printed pages 15 have lesser page
It opens specification (such as minimum gauge).Shutter 16 is adjusted within the region of spray cone 14, thus two external powder jets
The spray cone 14 of 18 (nozzle heads 13 in other words) strikes on each shutter 16.It strikes the powder on shutter 16 and passes through pumping
Device 17 is inhaled to be sucked out and be supplied to the system of reapplying.Under the second drive mode, only within smaller page specification
The spray cone 14 of nozzle head 13 strikes in printed pages 15, also, the spray of the nozzle head 13 other than smaller page specification
Pencil 14 is trapped by shutter 16.Even if in the case where processing smaller page specification (such as minimum gauge), jet rod
12 all powder jets 18 (nozzle head 13 in other words) also spray.In all export distributors 11, powder-air-
Mixture volume flow having the same under the second drive mode, wherein the powder in the volume flow and all export distributors 11
Possessed volume flow can not also be identical in terms of numerical value under the first drive mode for end-air mixture.
Applied powder-air mixture and the applied powder under the second drive mode under the first drive mode
End-air mixture can be different for example in terms of constituent (powder share, air share), equally can also be upper
It states under two kinds of drive modes using identical powder-air mixture.
List of reference characters
1 tank
2 powder deposits
3 meters
4 metering rolls
5 injectors
6 pressure air pipelines
7 feeding pipes
8 connecting lines
9 distributor entrances
10 powder dispensers
11 export distributors
12 jet rods
13 nozzle heads
14 spray cones
15 printed pages
16 shutters
17 suction units
18 powder jets
GS always flows
TS is shunted
Claims (2)
1. a kind of method for carrying out dispensing powder to printed pages in printing machine,
Wherein, by means of powder unit under the first drive mode to larger page specification printed pages (15) and
Powder-air mixture is sprayed respectively to the printed pages (15) with smaller page specification under second drive mode, also,
Under second drive mode, it is equipped in all export distributors (11) of the powder dispenser (10) of the powder unit
Powder-air mixture identical volume flow in terms of numerical value,
Wherein, total stream (GS) of the powder-air mixture is divided into shunting (TS) in the powder dispenser (10),
It is each to shunt each the different powder jet for being directed to the nozzle arrangement of the powder unit in these shuntings
(18),
Wherein, under second drive mode, all powder nozzle (18) of the nozzle arrangement is sprayed, and
Wherein, multiple powder sprays under second drive mode, in the powder jet (18) of the spraying of the nozzle arrangement
Mouth is completely covered by a common shutter or by multiple discrete shutters (16).
2. method according to claim 1, wherein the powder-air mixture is divided under second drive mode
Be fitted on on the export distributor (11) of the powder-air mixture identical quantity under first drive mode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014225805 | 2014-12-15 | ||
| DE102014225805.7 | 2014-12-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105690991A CN105690991A (en) | 2016-06-22 |
| CN105690991B true CN105690991B (en) | 2019-06-04 |
Family
ID=56082547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510926296.4A Active CN105690991B (en) | 2014-12-15 | 2015-12-14 | For carrying out the method for dispensing powder to printed pages in printing machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105690991B (en) |
| DE (1) | DE102015222706A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017219710A1 (en) * | 2016-12-06 | 2018-06-07 | Heidelberger Druckmaschinen Ag | Method for spraying printed sheets with powder |
| DE102018219655B3 (en) | 2018-11-16 | 2019-09-05 | Heidelberger Druckmaschinen Ag | Sheet-pollination device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2696362B2 (en) * | 1988-11-22 | 1998-01-14 | 大日本印刷株式会社 | Spray prevention agent spraying device |
| JP2834817B2 (en) * | 1988-06-06 | 1998-12-14 | インダストリーエレクトロニク ドクトル インジェニール バルター クラシュカ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー | Powdering equipment |
| DE29816738U1 (en) * | 1998-08-10 | 1999-01-14 | Weitmann & Konrad Fa | Device for dusting printed sheets |
| US6085654A (en) * | 1998-02-17 | 2000-07-11 | Heidelberger Druckmaschinen Aktiengesellschaft | Device for powdering printed sheets |
| CN201597242U (en) * | 2010-03-28 | 2010-10-06 | 滕兴鸿 | Electronic pneumatic powder spraying device |
| CN102189753A (en) * | 2010-03-15 | 2011-09-21 | 海德堡印刷机械股份公司 | Apparatus for dusting printed sheets with powder |
| CN102452220A (en) * | 2010-10-21 | 2012-05-16 | 海德堡印刷机械股份公司 | A device for powdering of sheets in a printing press |
| CN103847222A (en) * | 2012-11-28 | 2014-06-11 | 海德堡印刷机械股份公司 | Powder device for powdering printed sheets in printing press |
-
2015
- 2015-11-18 DE DE102015222706.5A patent/DE102015222706A1/en active Pending
- 2015-12-14 CN CN201510926296.4A patent/CN105690991B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2834817B2 (en) * | 1988-06-06 | 1998-12-14 | インダストリーエレクトロニク ドクトル インジェニール バルター クラシュカ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー | Powdering equipment |
| JP2696362B2 (en) * | 1988-11-22 | 1998-01-14 | 大日本印刷株式会社 | Spray prevention agent spraying device |
| US6085654A (en) * | 1998-02-17 | 2000-07-11 | Heidelberger Druckmaschinen Aktiengesellschaft | Device for powdering printed sheets |
| DE29816738U1 (en) * | 1998-08-10 | 1999-01-14 | Weitmann & Konrad Fa | Device for dusting printed sheets |
| CN102189753A (en) * | 2010-03-15 | 2011-09-21 | 海德堡印刷机械股份公司 | Apparatus for dusting printed sheets with powder |
| CN201597242U (en) * | 2010-03-28 | 2010-10-06 | 滕兴鸿 | Electronic pneumatic powder spraying device |
| CN102452220A (en) * | 2010-10-21 | 2012-05-16 | 海德堡印刷机械股份公司 | A device for powdering of sheets in a printing press |
| CN103847222A (en) * | 2012-11-28 | 2014-06-11 | 海德堡印刷机械股份公司 | Powder device for powdering printed sheets in printing press |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105690991A (en) | 2016-06-22 |
| DE102015222706A1 (en) | 2016-06-16 |
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