CN101444989A - Water delivery device for local adjusting offset printing machine based on image printing - Google Patents
Water delivery device for local adjusting offset printing machine based on image printing Download PDFInfo
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- CN101444989A CN101444989A CNA200810236564XA CN200810236564A CN101444989A CN 101444989 A CN101444989 A CN 101444989A CN A200810236564X A CNA200810236564X A CN A200810236564XA CN 200810236564 A CN200810236564 A CN 200810236564A CN 101444989 A CN101444989 A CN 101444989A
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Abstract
The invention discloses a local adjusting water delivery device of an offset printing machine based on image printing, which comprises a swing stem, one end of which is a cylindrical cavity and the other end of which is a tetragonal swing, wherein, a fixing shaft is arranged in the cylindrical cavity; the diameter of the fixing shaft is matched with the inside diameter of the cylindrical cavity of the swing stem to allow the swing stem to rotate around the fixing shaft exactly and move in the axial direction of the fixing shaft; the length of the fixing shaft is not less than that of the cylindrical cavity of the swing stem; one surface of the tetragonal swing of the swing stem is connected with one end of a cylinder; the other end of the cylinder is fixed on a fixing plate; meanwhile, the cylindrical cavity of the swing stem is connected with the fixing plate through a tension spring; and an adjustable fur brush is arranged on the other surface of the tetragonal swing of the swing stem. The local adjusting water delivery device of the offset printing machine based on the image printing solves the problem that the conventional water supply system can not realize water quantity local controlled; the local emulsification of the printing ink is avoided; and the adjusting accuracy is high.
Description
Technical field
The invention belongs to printing machine control technology field, relate to a kind of water delivery device, be specifically related to a kind of offset press water delivery device for local adjusting based on the printing image.
Background technology
Offset lithography is a kind of unique mode of printing that uses wet water, need water delivery mechanism regularly, quantitatively, and provide wet water to white space equably, and must the mode that adopt printing ink on first Shang Shui, the back in the printing, printing surface is handled, just can be printed normally.At present, for domestic and international offset press, its water delivery mechanism all by water supply part, even water section, water section and form.Water supply part is made up of bucket, water bucket roller, biography damping roller, and the main effect of this part is that wet water quantitatively, is regularly supplied with even water section.Even water section is made up of dampening vibrator roller, even damping roller, it circumferentially rotates and axial float by dampening vibrator roller, wet water is beaten even, and be delivered on the damping roller, because of bucket solution the inside surface reactive material is arranged simultaneously, can reduce the surface tension of water, fountain solution more is evenly distributed in be surrounded by flannelette on the damping roller.Water section and be made up of some damping rollers, main effect is the blank parts that moisture evenly is coated in right amount offset printing forme.In the water delivery mechanism of offset press, water bucket roller and dampening vibrator roller are all selected the metallic roll of chromium plating, to guarantee the good hydrophilicity energy.Control the surperficial water yield of forme well, use minimum water under the prerequisite of not dirty version, reach the balance of offset printing ink, reduce the ink emulsification phenomenon, this is the prerequisite that improves offset quality.
For traditional offset press water system, can evenly supply water to the whole space of a whole page, the size of the water yield generally is to realize by regulating the centre-to-centre spacing that passes between damping roller and the even damping roller.But this device can't supply water to printing according to the concrete condition of forme graphic screen and carry out local modulation.Because the picture and text of now a lot of printed matters are deep or light inconsistent, the water that light place needs is big, the saturate local water that needs is a little bit smaller, if adopt the water delivery of traditional consistency of thickness, be difficult to satisfy the requirement of duplicating of modern high-grade printed matter, so should adopt the water delivery device of non-uniform thickness, and the size of the water yield should can be regulated arbitrarily according to the distribution situation of picture and text.
Summary of the invention
The purpose of this invention is to provide a kind of offset press water delivery device for local adjusting based on the printing image, by regulating the distance between hairbrush and the water bucket roller, thereby the control water bucket roller is sent to the water yield in the water-carriage system, reach the purpose of local control forme output, solve the traditional water supply system and can't realize the local problem of controlling of the water yield, avoided the local emulsification of printing ink, and the degree of regulation height.
The technical solution adopted in the present invention is, a kind of offset press water delivery device for local adjusting based on the printing image, comprise that an end is a cylindrical cavity, one end is the fork of the tetragonal body wing, be provided with fixed axis in the cylindrical cavity of fork, the internal diameter of the diameter of fixed axis and the cylindrical cavity of fork is complementary, make that fork just can be around the fixed axis rotation, and fork can move axially in the fixed axis upper edge, the length of fixed axis is not less than the length of the cylindrical cavity of fork, a surface of the tetragonal body wing of fork and an end of cylinder are connected, the other end of cylinder is fixed on the fixed head, an end of the cylindrical cavity of fork is connected with fixed head by extension spring simultaneously, and another surface of the tetragonal body wing of fork is provided with adjustable hairbrush.
Characteristics of the present invention also are,
A kind of in the material selection nylon of hairbrush wherein, polyester, the bristles.
Fixed axis wherein is provided with a plurality of forks, is connected with a cylinder, an extension spring on the one side of each fork, and cylinder, extension spring are fixed on the fixed head, are connected with an adjustable hairbrush on the another side of each fork.
Offset press water delivery device for local adjusting based on the printing image of the present invention has solved the traditional water supply system and can't realize the local problem of controlling of the water yield, has avoided the local emulsification of printing ink, and the degree of regulation height.
Description of drawings
Fig. 1 is the structural representation of water delivery device for local adjusting of the present invention;
Fig. 2 is the structural representation of swing-bar mechanism in the water delivery device for local adjusting of the present invention;
Fig. 3 is the operation principle schematic diagram of water delivery device for local adjusting of the present invention.
Among the figure, 1. extension spring, 2. fixed axis, 3. fork, 4. screw, 5. hairbrush, 6. tank, 7. water bucket roller, 8. even damping roller, 9. dampening vibrator roller, 10. damping roller, 11. plate cylinders, 12. cylinders, 13. fixed heads.
The specific embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
The present invention is based on the structure of the offset press water delivery device for local adjusting of printing image, as shown in Figure 1, comprise that an end is that cylindrical cavity, an end are the fork 3 of the tetragonal body wing, be provided with fixed axis 2 in the cylindrical cavity of fork 3, the length of fixed axis 2 equals the length of even damping roller 8, the outer surface of the cylindrical cavity inner surface applying fixed axis 2 of fork 3 make fork 3 just can rotate around fixed axis 2, and fork 3 can move axially in fixed axis 2 upper edges.The upper surface of the tetragonal body wing of fork 3 is connected with an end of cylinder 12, and the other end of cylinder 12 is fixed on the fixed head 13, and an end of the cylindrical cavity of fork 3 is connected with fixed head 13 by extension spring 1 simultaneously.Be fixed with the hairbrush 5 that to regulate by screw 4 on the lower surface of the tetragonal body wing of fork 3.
During work, fixed head 13 and fixed axis 2 are fixed near the printing machine water delivery device the wall, guarantee that hairbrush 5 is in contactless state above water bucket roller 7, and hairbrush 5 can touch in the scope of water bucket roller 7 when being in rotation.
At first whole printing surface is supplied water during printing, guarantee the ink-water balance of printing surface.Be that water bucket roller 7 rotates in tank 6, wet water is passed to even damping roller 8, even damping roller 8 is passed to wet water dampening vibrator roller 9 again, when dampening vibrator roller 9 is made circumferential movement, also do axial float, wet water is being transferred on the damping roller 10, by damping roller 10 wet water is being transferred on the plate cylinder 11 at last, this moment, hairbrush 5 was in contactless state with water bucket roller 7.
When the water yield of plate cylinder 11 space of a whole page picture and text need be regulated, allow cylinder 12 air inlets, promote fork 3 and be rotated counterclockwise to hairbrush 5 around fixed axis 2 and contact with water bucket roller 7, hairbrush 5 has hindered the transmission of wet water on the water bucket roller 7, controls the output that water bucket roller 7 is passed to plate cylinder 11 thereby finish the part.Can finely tune hairbrush 5 simultaneously, unclamp screw 4, dwindle the distance of 7 of hairbrush 5 and water bucket rollers, then water bucket roller 7 is passed to the output minimizing of plate cylinder 11; Increase the distance of 7 of hairbrush 5 and water bucket rollers, then water bucket roller 7 is passed to the output increase of plate cylinder 11.After regulating the distance of hairbrush 5, tighten the screws 4.When not needing to regulate local water supply, allow cylinder 12 exhausts, drive fork 3 and go to hairbrush 5 around fixed axis 2 dextrorotations and do not contact with water bucket roller 7.
Hairbrush 5 adopts nylon material, both can control the carrying capacity of water bucket roller 7, does not damage water bucket roller 7 again.Can also need the regimen condition according to the space of a whole page picture and text of plate cylinder 11 diverse locations, regulate the position of cylinder 12 on fixed head 13, drive fork 3 and move axially to along fixed axis 2 and need the position regulated on the corresponding plate cylinder 11, thereby reach the purpose of regulating the diverse location water requirement.
Also a plurality of forks 3 can be set on fixed axis 2, be connected with a cylinder 12, an extension spring 1 on the one side of each fork 3, cylinder 12, extension spring 1 are fixed on the fixed head 13, be connected with a hairbrush 5 on the another side of each fork 3, different position on each fork 3 corresponding plate cylinder 11, regulate the distance between each hairbrush 5 and the water bucket roller 7 respectively, just can reach the purpose of regulating the pairing different water requirements of diverse location on forme 11 cylinders.
Offset press water delivery device for local adjusting based on the printing image of the present invention has solved the traditional water supply system and can't realize the local problem of controlling of the water yield, has avoided the local emulsification of printing ink, and the degree of regulation height.
Claims (3)
- One kind based on the printing image the offset press water delivery device for local adjusting, it is characterized in that, comprise that an end is a cylindrical cavity, one end is the fork (3) of the tetragonal body wing, be provided with fixed axis (2) in the cylindrical cavity of fork (3), the internal diameter of the cylindrical cavity of the diameter of fixed axis (2) and fork (3) is complementary, make fork (3) just can center on fixed axis (2) rotation, and fork (3) can move axially in fixed axis (2) upper edge, the length of fixed axis (2) is not less than the length of the cylindrical cavity of fork (3), a surface of the tetragonal body wing of fork (3) and an end of cylinder (12) are connected, the other end of cylinder (12) is fixed on the fixed head (13), an end of the cylindrical cavity of fork (3) is connected with fixed head (13) by extension spring (1) simultaneously, and another surface of the tetragonal body wing of fork (3) is provided with adjustable hairbrush (5).
- 2. the offset press water delivery device for local adjusting based on the printing image according to claim 1 is characterized in that a kind of in the material selection nylon of described hairbrush (5), polyester, the bristles.
- 3. the offset press water delivery device for local adjusting based on the printing image according to claim 1, it is characterized in that, described fixed axis (2) is provided with a plurality of forks (3), be connected with a cylinder (12), an extension spring (1) on the one side of each fork (3), described cylinder (12), extension spring (1) are fixed on the fixed head (13), are connected with an adjustable hairbrush (5) on the another side of described each fork (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810236564XA CN101444989A (en) | 2008-12-31 | 2008-12-31 | Water delivery device for local adjusting offset printing machine based on image printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810236564XA CN101444989A (en) | 2008-12-31 | 2008-12-31 | Water delivery device for local adjusting offset printing machine based on image printing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101444989A true CN101444989A (en) | 2009-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810236564XA Pending CN101444989A (en) | 2008-12-31 | 2008-12-31 | Water delivery device for local adjusting offset printing machine based on image printing |
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| Country | Link |
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| CN (1) | CN101444989A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434866A (en) * | 2013-08-30 | 2013-12-11 | 无锡宝南机器制造有限公司 | Paper alignment adjusting device |
| CN108394176A (en) * | 2018-04-12 | 2018-08-14 | 宜春市同茂印务有限公司 | A kind of equipment for rice paper production printing |
-
2008
- 2008-12-31 CN CNA200810236564XA patent/CN101444989A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434866A (en) * | 2013-08-30 | 2013-12-11 | 无锡宝南机器制造有限公司 | Paper alignment adjusting device |
| CN103434866B (en) * | 2013-08-30 | 2016-02-24 | 无锡宝南机器制造有限公司 | Positive control apparatus walked by paper |
| CN108394176A (en) * | 2018-04-12 | 2018-08-14 | 宜春市同茂印务有限公司 | A kind of equipment for rice paper production printing |
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Open date: 20090603 |