CN201195427Y - Four-roller continuous damping liquid-feed apparatus - Google Patents
Four-roller continuous damping liquid-feed apparatus Download PDFInfo
- Publication number
- CN201195427Y CN201195427Y CNU2008200705591U CN200820070559U CN201195427Y CN 201195427 Y CN201195427 Y CN 201195427Y CN U2008200705591 U CNU2008200705591 U CN U2008200705591U CN 200820070559 U CN200820070559 U CN 200820070559U CN 201195427 Y CN201195427 Y CN 201195427Y
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- China
- Prior art keywords
- roller
- water
- dampening
- vibrators
- forme
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- Expired - Fee Related
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- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The utility model discloses a four-high continuous dampening liquid-transferring device, which comprises a water fountain roller, a metering roller, a forme roller and a plate cylinder, dampening vibrators are respectively mounted at two lower sides between the forme roller and the metering roller, the dampening vibrators are contacted with the forme roller and the metering roller, the rotating direction of the dampening vibrators is opposite to that of the metering roller and the form roller and is the same with that of the plate cylinder and the water fountain roller, and a defrosting tray which is connected with a water fountain is arranged below the dampening vibrators. The utility model overcomes the defect of unevenly obtaining water caused by water wedges which are easy to generate in the prior art, guarantees ink-water balance, and has the advantages of simple operation and high printing quality. Further, the utility model also can be applied to an offset printer of a batch type transferring device.
Description
Technical field:
The utility model relates to the dampening device of the lithographic plate rotary press that is used for offset printing, and the continuous damping of particularly a kind of four-roller type passes liquid device.
Background technology:
Domestic existing offset press fountain solution transfer device is generally two kinds of transfer modes, and a kind of is the clearance-type transmission, and promptly the moisture content on the water bucket roller is to transmit by the reciprocally swinging that the centre passes damping roller.Adopt this mode, it is inhomogeneous that forme obtains water, and it is too many to make the forme part obtain water sometimes, easily makes ink emulsification; Sometimes obtain water very little, make the space of a whole page fuzzy, finally influence clear, even, the gloss and the chromatography accuracy of printing.And the offset press fountain solution transfer device that a part relies on the capillary principle to carry out work, driving force relies on frictional force, and the last water yield is difficult for steadily, along with the appearance of situations such as wearing and tearing, put pen to paper in the surface, need operating personnel in time according to the actual conditions adjustment, printing effect can not be consistent for a long time.The phenomenon of water villus shedding is arranged simultaneously, influenced product quality.Another kind is the continous way transmission, and promptly the moisture content on the water bucket roller is evenly passed to by copy roller that forme realizes in the back by dampening vibrator roller continuously.Because wetting film has the water wedge to exist, thus forme to obtain water still be not very even, thereby influenced the printing quality of printing.The ink-water balance of offset press is the operating personnel's of offset press a control emphasis all the time, directly has influence on the quality of print product.
Summary of the invention:
The purpose of this utility model provides a kind of simple to operate, the continuous damping biography of the guaranteed four-roller type of printing product quality liquid device.
Technical solution of the present utility model is finished as follows, it includes water bucket roller, metering roll, copy roller and plate cylinder, it is characterized in that: between copy roller and metering roll, contact with metering roll with copy roller respectively a dampening vibrator roller identical with the water bucket roller rotation direction with forme drum with the copy roller direction of rotation with metering roll is installed, below dampening vibrator roller, be provided with the drip tray that links to each other with bucket by both sides below the side.
The utility model has overcome and is easy to generate the water wedge in the prior art and causes that forme obtains the uneven defective of water, guarantees ink-water balance, have simple to operate, the advantage that printing quality is high, this device also may be used on the offset press of clearance-type transfer device.
Description of drawings:
Fig. 1 is the utility model structural scheme of mechanism in when printing, and Fig. 2 is the structural representation when stopping operation, and Fig. 3 is the setting angle schematic diagram between water bucket roller and dampening vibrator roller axis line and the horizontal plane.
The specific embodiment:
Further describe embodiment in conjunction with above accompanying drawing, the utility model comprises water bucket roller 1, metering roll 2, copy roller 4 and bucket 6.Water bucket roller 1 is immersed in the bucket 6, and the parallel contact of water bucket roller 1 front upper side face is equipped with metering roll 2, water bucket roller 1 and metering roll 2 direction of rotation.The engagement that cogs of gear and metering roll 2 is arranged on the water bucket roller 1, the rotating speed of metering roll 2 is higher than water bucket roller 1, water liquid in water bucket roller 1 and metering roll 2 contact positions separates the very thin wetting film of formation, the first task of forming wetting film is finished at this, thereby has guaranteed the adequacy and the uniformity of the required moisture content of forme.
Dampening vibrator roller 3 is connected the printing machine transmission device with copy roller 4, and dampening vibrator roller 3 and copy roller 4 rotating speeds and printing machine rotating speed are complementary.There is gear drive copy roller 4 to cog on the dampening vibrator roller 3 and drives copy roller 4 rotations.Dampening vibrator roller 3 evenly reaches copy roller 4 by the polishing chrome-plated surface with wetting film, handle wetting film like this after, the wetting film on the copy roller is very even, it is even to have guaranteed that water is obtained on the forme surface behind the copy roller input plate cylinder.
The continuous fountain solution transfer device of four-roller type is worked in the mode of triple control wetting films, the fountain solution transmission can be from the many aspects adjustment, effectively reduce the negative effect that the part foozle is brought, the whole process of fountain solution transmission and disconnection all is pneumatic control, the impact that can effectively avoid transmission to cause just can very fastly reach water, black balance at the seal machine initial stage of starting to print.
With reference to figure 3, when water bucket roller 1 axle center and formed plane, dampening vibrator roller 3 axle center and horizontal plane angle during, have drip tray 7 to exist on the bucket 6 less than 25 °, be positioned at dampening vibrator roller 3 under.Can effectively reduce the printing defects that the fine liquid particles that throws away because of dampening vibrator roller 3 edges causes.
The results showed: four-roller type continous way fountain solution transfer device can guarantee continuity and the uniformity that fountain solution transmits, guaranteed forme surface ink reasonable distribution, avoided the emulsification of printing ink, make printing pattern gloss, guarantee ink-water balance, made the printing clear patterns, added a certain proportion of alcohol in the fountain solution, reduced Deformation of Paper, made chromatography more accurate.
Claims (1)
1. the continuous damping of four-roller type passes liquid device, it includes water bucket roller, metering roll, copy roller and plate cylinder, it is characterized in that: between copy roller and metering roll, contact with metering roll with copy roller respectively a dampening vibrator roller identical with the water bucket roller rotation direction with forme drum with the copy roller direction of rotation with metering roll is installed, below dampening vibrator roller, be provided with the drip tray that links to each other with bucket by both sides below the side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200705591U CN201195427Y (en) | 2008-05-09 | 2008-05-09 | Four-roller continuous damping liquid-feed apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200705591U CN201195427Y (en) | 2008-05-09 | 2008-05-09 | Four-roller continuous damping liquid-feed apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201195427Y true CN201195427Y (en) | 2009-02-18 |
Family
ID=40415064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200705591U Expired - Fee Related CN201195427Y (en) | 2008-05-09 | 2008-05-09 | Four-roller continuous damping liquid-feed apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201195427Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189740A (en) * | 2010-02-02 | 2011-09-21 | 小森公司 | Printing/coating method and apparatus |
-
2008
- 2008-05-09 CN CNU2008200705591U patent/CN201195427Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189740A (en) * | 2010-02-02 | 2011-09-21 | 小森公司 | Printing/coating method and apparatus |
| CN102189740B (en) * | 2010-02-02 | 2016-03-02 | 小森公司 | Printed/coated method and apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090218 Termination date: 20140509 |