CN201693832U - Dampening device of lithographic printing press - Google Patents
Dampening device of lithographic printing press Download PDFInfo
- Publication number
- CN201693832U CN201693832U CN2010201792077U CN201020179207U CN201693832U CN 201693832 U CN201693832 U CN 201693832U CN 2010201792077 U CN2010201792077 U CN 2010201792077U CN 201020179207 U CN201020179207 U CN 201020179207U CN 201693832 U CN201693832 U CN 201693832U
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- water
- roller
- printing
- damping
- dampening
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- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The utility model discloses a dampening device of a lithographic printing press, which comprises a water hopper, a water hopper roller, a measuring roller, a water roller and water flocking sleeves. The water hopper roller is partially positioned in the water hopper, the measuring roller contacts with the water hopper roller, one side of the water roller contacts with the measuring roller while the other side contacts with a dampening vibrator, the water roller further contacts with a plate cylinder, and the water flocking sleeves are sleeved on the water hopper roller and the water roller. The dampening device realizes the printing manner of being capable of dampening plates with water by slightly modifying an alcohol dampening device, and accordingly a printing enterprise does not need to prepare a special water dampening device, thereby reducing cost for the printing enterprise.
Description
Technical field
The utility model belongs to the printer technology field, relates to offset press, relates in particular to the dampening device of offset press.
Background technology
Two-sided offset press mainly prints the books and periodicals living-article, and the processing charges of books and periodicals living-article are very low in the industry, and the paper quality diversity ratio is bigger, and the paper paper powder that has is a lot.
Offset printing is to finish the printing ink trans-printing according to the inconsistent principle of profit.Offset press is provided with dampening device, constitutes picture and text and blank parts (in fact forme picture and text and blank parts have only the difference of 5-8um) on the forme of same plane.In when printing, dampening device earlier to forme for wetting solution, again by the inking device to the forme ink supply, print by the mechanism of the anti-water of space of a whole page picture and text part oleophylic.
At present, offset press has two kinds of damping modes, and a kind of is the water damping, and another kind is an alcohol edition-0 moistening.
As shown in Figure 1, this is traditional water dampening device, by water supply part, even water section, three parts of water section and constitute.Wherein water supply part by bucket 101, water bucket roller 102, pass damping roller 103 and form, wherein passing damping roller 103 is oscillating rollers, the effect of water supply part is to store and to even water section supply water fountain solution.Even water section is a dampening vibrator roller 201.Water section by two damping roller 301,302 form.The effect of even water section is that water is beaten even and flowed to damping roller 301,302 at axial and circumferential; The effect of water section is that the water fountain solution is coated forme blank space on the plate cylinder 400 equably, to intercept printing ink.In this damping mode, passing damping roller 103 is by the mode of swinging the water on the water bucket roller 102 to be passed to dampening vibrator roller 201.Fountain solution is formed according to certain ratio proportioning by water and damping pulvis.And pass damping roller 103, damping roller the 301, the 302nd, rubber rollers, the surface is with Water wool jacket, purpose be for pass water, water good, do not need refrigeration.
As shown in Figure 2, the alcohol edition-0 moistening device is by water bucket roller 501, metering roll 502, dampening vibrator roller 503, damping roller 504, intermediate calender rolls 505, inking roller 506 is formed, and wherein water bucket roller 501 is made for elastomeric material, described metering roll 502 carried out the chromium plating polishing, dampening vibrator roller 503 chromium plating but do not polish damping roller 504 and are made for elastomeric material, and intermediate calender rolls 505 is made for nylon material.The water bucket roller 501 of this alcohol edition-0 moistening device is driven by variable-frequency motor, and the Frequency Converter Control motor speed drives metering roll 502 by shaft end gear again, so metering roll 502 rotates with speed with water bucket roller 501.Dampening vibrator roller 503 and damping roller 504 by plate cylinder 400 working face driven rotary.The speed of damping roller 504 is faster than metering roll 502, when contacting, both make the damping liquid film elongate attenuation, make it penetrating in the printing ink on the damping roller (printing ink of on the damping roller 504 obtains from inking roller 506 by intermediate calender rolls 505) the forme blank space on the moistening then plate cylinder 400.Wherein, fountain solution by water, alcohol, damping pulvis according to certain ratio proportioning.When this alcohol edition-0 moistening device uses, must use refrigeration case,, can also reduce the forme surface temperature simultaneously, avoid the use of Water wool jacket to reduce the volatilizing loss of alcohol.
At present, printing of water damping and alcohol edition-0 moistening printing adopt above-mentioned two kinds of devices to realize respectively.Concerning most of printing enterprises, the printing that carry out two kinds of different damping modes at the paper of different paperys respectively just must be equipped with the machine of two kinds of dampening devices simultaneously, and this has greatly increased the cost of printing enterprise.
The utility model content
Technical problem to be solved in the utility model provides a kind of dampening device, this dampening device of offset press can be by realizing water damping mode of printing to alcohol edition-0 moistening device slight modification, thereby reach the purpose that lowers printing enterprise's equipment cost.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of dampening device of offset press, comprise bucket, part is arranged in the water bucket roller of bucket, the metering roll that contacts with water bucket roller, one side contacts metering roll, opposite side contact dampening vibrator roller damping roller, described damping roller also contacts with plate cylinder, it is characterized in that: described water bucket roller and be with Water wool jacket on the damping roller.
Because the water bucket roller smoother, water fountain solution surface tension is bigger, directly passes water with water bucket roller, and the water fountain solution can be gathered into water droplet, can't evenly tile attached on the water bucket roller, can't carry out the smooth transmission of water fountain solution.By the water fountain solution successfully is delivered on the metering roll putting Water wool jacket on the water bucket roller from water bucket roller, simultaneously, paper powder on the forme can be taken away by put Water wool jacket on damping roller, the paper powder that reduces on the plate cylinder adheres to, thereby makes printing to carry out smoothly.Therefore, the utility model has realized carrying out the mode of printing of water damping by the slight modification to the alcohol edition-0 moistening device, and like this, printing enterprise just is not equipped with the machine of special water dampening device again, thereby has reduced the cost of printing enterprise.
Show by test, adopt 140 pin Water wool jackets on the water bucket roller, and adopt 126 pin Water wool jackets to have best printing effect on the damping roller.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is elaborated:
Fig. 1 is the water dampening device schematic diagram of prior art;
Fig. 2 is the alcohol edition-0 moistening device schematic diagram of prior art;
Fig. 3 is a structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, the dampening device of offset press of the present utility model is the improvement on the alcohol edition-0 moistening device, and improvements are removed intermediate calender rolls exactly, and is putting Water wool jacket 601,602 on the water bucket roller 501 with on the damping roller 504.Way particularly is exactly, select the water bucket roller of a diameter for use than the little 4.5mm of water bucket roller diameter of alcohol edition-0 moistening device, put the Water wool jacket 601 of 140 pins then, select for use a diameter than alcohol edition-0 moistening device the little 4.5mm of damping roller diameter damping roller, and put the Water wool jacket 602 of 126 pins thereon.
The water fountain solution successfully is delivered on the metering roll 502 from bucket 101, putting Water wool jacket 602 on damping roller 504 can take away the paper powder on the forme, the paper powder that reduces on the plate cylinder adheres to, thereby makes printing to carry out smoothly.
Adopt said structure, compare with original alcohol edition-0 moistening device, aspect the printing of printing sheets difference, dampening device of the present utility model has remarkable advantages.Below be to use the operating position of two kinds of dampening devices:
During one, with the alcohol edition-0 moistening device
1, alcohol and the fountain solution cost that used in every month can increase about 120,000 yuan;
2,, print about 1000 and promptly must clean blanket, otherwise seriously descend because of the paper powder causes print quality because of the too many reason of paper paper powder;
3, higher because of the drummed pure water cost, and hydrotreater is not durable, and needs deliming in 3 days when the user uses running water, otherwise because of ink roller glazing does not cause China ink, also serious printing quality.
Two, behind the use dampening device of the present utility model
Print quality when 1, paper is relatively poor can be between alcohol edition-0 moistening printing and the printing of clearance-type water damping;
2, because of without alcohol and fountain solution, only add the damping pulvis with running water, cost reduces about about 120,000 greatly;
Even 3 paper paper powder are too many, printing 8000-10000 opens the blanket that just needs cleaning;
4, water is not strict with, no longer needs deliming (quality match preferably fly upward deliming machine price yet very high).
When 5, printing the printing of papery difference, printing output has improved 140%.
In sum, dampening device of the present utility model just carried out slightly improving just having realized water damping mode to the alcohol edition-0 moistening device, changes an angle and says and can utilize same device just can realize two kinds of damping modes, as long as provide for simple replacement of damping roller.The demanding product of, printing good to papery is with alcohol roller (water bucket roller that diameter is thick and damping roller), for the printing of papery difference change into damping roller (water bucket roller that diameter is thin and damping roller and for both put Water wool jacket).
Contrast through actual the use, the improvement of dampening device of the present utility model, be fabulous solution,, also meet the requirement of environmental and ecological type printing, minimizing carbon emission owing to use less (living-article that printing is high is less relatively) or do not use alcohol to the increment printing of present low profit printing market.
The above-mentioned specific embodiment is exemplary, be in order better to make those skilled in the art can understand this patent, can not be interpreted as it is the restriction that this patent is comprised scope, so long as according to spirit that this patent discloses done anyly be equal to change or modify, all fall into the scope that this patent comprises.
Claims (2)
1. the dampening device of an offset press, comprise bucket, part is arranged in the water bucket roller of bucket, the metering roll that contacts with water bucket roller, one side contacts metering roll, opposite side contact dampening vibrator roller damping roller, described damping roller also contacts with plate cylinder, it is characterized in that: described water bucket roller and be with Water wool jacket on the damping roller.
2. according to the dampening device of the offset press of claim 1, it is characterized in that: the Water wool jacket on the water bucket roller is 140 pins, and the Water wool jacket of on the damping roller is 126 pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201792077U CN201693832U (en) | 2010-04-27 | 2010-04-27 | Dampening device of lithographic printing press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201792077U CN201693832U (en) | 2010-04-27 | 2010-04-27 | Dampening device of lithographic printing press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201693832U true CN201693832U (en) | 2011-01-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201792077U Expired - Fee Related CN201693832U (en) | 2010-04-27 | 2010-04-27 | Dampening device of lithographic printing press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201693832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844432A (en) * | 2010-04-27 | 2010-09-29 | 上海紫明印刷机械有限公司 | Dampening device of lithographic machine |
-
2010
- 2010-04-27 CN CN2010201792077U patent/CN201693832U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844432A (en) * | 2010-04-27 | 2010-09-29 | 上海紫明印刷机械有限公司 | Dampening device of lithographic machine |
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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: 20110105 Termination date: 20180427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |