CN104210228A - Wear-resistant anilox roller as well as preparation method and application thereof - Google Patents
Wear-resistant anilox roller as well as preparation method and application thereof Download PDFInfo
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- CN104210228A CN104210228A CN201410428975.4A CN201410428975A CN104210228A CN 104210228 A CN104210228 A CN 104210228A CN 201410428975 A CN201410428975 A CN 201410428975A CN 104210228 A CN104210228 A CN 104210228A
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- wear
- ink
- anilox roll
- resisting
- convex closure
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Abstract
The invention discloses a wear-resistant anilox roller as well as a preparation method and an application thereof. A metal layer having an authigenic anilox morphology can be generated on a roller surface by adopting an electro-deposition method, after nucleation and growth of metal crystals of the metal layer, convex hulls are formed; enclosed or open ink fountains are formed in the low-lying area around the convex hulls; the wall surfaces formed by the convex hull structures are in circular arc transition from the bottom surface to the tops of the convex hulls. The micron-scale ink foundations adsorb ink through the action of capillary pipes so as to achieve the purpose of ink transfer. According to the preparation method disclosed by the invention, the ink transfer amount can be adjusted by adjusting the ink cell volume in a relatively wide range so as to adapt to different printing demands. The anilox roller prepared by adopting the electro-deposition method is simple in process, high in deposition speed and free of complicated machining equipment; meanwhile, due to the utilization of the characteristic that a metal coating is high in hardness, low in friction coefficient and good in wear resistance, the service life of the anilox roller can be prolonged, the roller changing ratio is reduced and the production cost of enterprises can be effectively reduced.
Description
Technical field
The present invention relates to a kind of anilox roll, particularly, relate to a kind of wear-resisting anilox roll, preparation method and application thereof.
Background technology
The ink spreader of flexographic presses primarily of black groove, anilox roll and abrading device three part form.Its operation principle is that ink is pumped into disc or doctor chamber from ink fountain, then transmitted by physics or capillarity by ink sorptive in the ink cell of anilox roll, scrape grinding system the ink of anilox roll excess surface is wiped off, in ink cell, remaining ink is then transferred to printing forme, is then transferred on stock by stable.Anilox roll as flexographic presses critical component can play as the effect of ink transfer stablized by printing machine, is called as " heart " of flexible board printing machine.Anilox roll experienced by three generations's technological change on the whole, first on behalf of wire netting line roller, and as shown in Figure 1, it is at metal surface preplating one deck copper, then go out ink cell in roll surface Surface Machining to mechanically with checkering tool, finally plate the wear-resisting chrome plating of one deck above.This kind of anilox roll is is easily worn and torn, and owing to being mechanical engraving, the roll surface reticulate pattern number of carve is very low, should not be applied on high-quality print system.Second on behalf of ceramic anilox roller, as shown in Figure 2, it is the way first using plasma spray coating, alchlor or chrome green etc. is sprayed on the surface of metal smooth roll, form the wear-resistant ceramic film that one deck hardness is high and good with basal body binding force, then etch ink cell with laser carving method.The pattern of this generation anilox roll is the closed ink cell structure of six rhombuses, and this one is current the most widely used anilox roll.The third generation is on second generation ceramic anilox roller basis, by the change of reticulate pattern pattern to realize the anilox roll manufacturing technology of efficient ink transfer.Here list a kind of anilox roll of commercialization, as shown in Figure 3, it is the open curved grooves with laser-engraving technique carve careful design on the ceramic layer on roll surface surface, and shape is different from six traditional rhombus ink cells, has the ink transfer performance of efficient stable.This anilox roll overcomes second generation ceramic anilox roller and easily occurs the phenomenon that bubbles of ink and uneven ink speck, white point and the ink caused of ink amount release are swooned when wiping.The main problem one that this anilox roll exists is that open curved grooves difficulty of processing is comparatively large, and two is that laser ablation cost is higher.
Summary of the invention
The present invention is directed to above-mentioned deficiency of the prior art, provide a kind of wear-resisting anilox roll, preparation method and application thereof, utilize electrochemistry crystallographic orientation and growing principle, Means of Electrodeposition directly generates the spontaneous reticulate pattern pattern of one deck on roll surface.The method not only at regulated in wider range ink cell volume, can adapt to different printing applications, and the reticulate pattern generated has excellent wear-resisting and decay resistance, extends the service life of anilox roll, reduces roll change number of times, for enterprise reduces production cost.
For achieving the above object, the present invention is achieved by the following technical solutions:
A kind of wear-resisting anilox roll, adopt electro-deposition method on roll surface, generate the metal level of spontaneous reticulate pattern pattern, convex closure is formed after being grown up by the metallic crystal forming core of described metal level, lowered zones around described convex closure forms closed or open black groove, and the wall that convex closure structure is formed is arc transition from bottom surface to convex closure top.
When described adjacent several convex closures form closed black groove structure, black well width is 20-50 micron.
When described convex closure growth dispersion is formed as open black groove structure, black well width is 100-300 micron.
A preparation method for described wear-resisting anilox roll, comprises step as follows:
(1) by the polishing of metal roller core, oil removing, acid-wash activation;
(2) roller core is inserted in electroplate liquid deposit, controlled forming core number and the large size of metallic crystal by adjustment electro-deposition parameter;
(3) grinding process is carried out to the metal roll surface after plating.
Described electro-deposition parameter comprises the composition of electroplate liquid, temperature and current density.
The described coat of metal is the monometallic coating of chromium, nickel, copper or zinc, the alloy layer that also to comprise with one or more elements in chromium, nickel, copper, zinc be main component.
The application of wear-resisting anilox roll in ink spreader, the wear-resisting anilox roll described in employing, realizes the control to ink cell volume by the control distribution of convex closure and the height of convex closure, and then controls anilox roll ink transfer amount.
Compared with prior art, the present invention has following beneficial effect: the mechanical engraving that the reticulate pattern that the method prepares is different from the past and used six networks and the curved grooves of laser ablation afterwards, it does not have clear and definite ink cell wall, coating surface is spontaneous groove structure, the convex hull-shaped grown becomes wall, these micron-sized grooves adsorb ink by capillary force, are then transferred on forme.The wall formed by convex closure is more wear-resisting compared with conventional wall.In addition, traditional reticulate pattern wall, perpendicular to substrate, easily forms dead angle and accumulates ink, and the wall that convex closure structure is formed is from bottom surface to convex closure top by stable arc transition, and such structure not easily accumulates ink, substantially increases ink transfer efficiency.In addition, electro-deposition method technique is simple, and deposition velocity is fast, without the need to the machining equipment of complexity; Make use of the low wear-resisting feature of coat of metal hardness great friction coefficient simultaneously, extend the service life of anilox roll, reduce roll change rate, effectively can reduce production cost.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more apparent.
Fig. 1 is the surface topography of first generation metal anilox roll reticulate structure;
Fig. 2 is the surface topography of second generation ceramic anilox roller reticulate structure;
Fig. 3 is the surface topography of third generation anilox roll reticulate structure;
Fig. 4 is the surface topography of novel wear resistant anilox roll reticulate structure one embodiment provided by the present invention;
Fig. 5 is the Cross Section Morphology of novel wear resistant anilox roll reticulate structure one embodiment provided by the present invention;
Fig. 6 is the surface topography of another embodiment of novel wear resistant anilox roll reticulate structure provided by the present invention.
Detailed description of the invention
Elaborate to embodiments of the invention below, the present embodiment is implemented premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
embodiment 1
Wear-resisting anilox roll provided by the present invention, adopt electro-deposition method on roll surface, generate the metal level of spontaneous reticulate pattern pattern, convex closure is formed after being grown up by the metallic crystal forming core of metal level, lowered zones around convex closure forms closed black groove, and the wall that convex closure structure is formed is arc transition from bottom surface to convex closure top.
The preparation method of above-mentioned wear-resisting anilox roll is as follows:
Step one: by the polishing of metallic roll wicking surface roughness to Ra=0.2, then oil removing, and acid-wash activation;
Step 2: inserted in electroplate liquid by roller core and deposit, by adjusting the composition of electroplate liquid, the electro-deposition such as temperature and current density parameter etc. control forming core number and the large size of crystal, to reach the object regulating ink cell volume.
Step 3: the tip portion suitably grinding off convex closure, the contact between dispersion scraper and anilox roll, thus reduce the frictional force between roll surface and scraper, to reach the object extending anilox roll and scraper blade life.
According to electrochemical principle, adopt high current density to deposit, metallic crystal can a large amount of forming core in the early stage, and nucleus forms convex closure after growing up gradually.Because Enhancing Nucleation Density is high, so adjacent several convex closures easily form closed black groove, as shown in Figure 4.In Figure 5,51 is convex closures that electro-deposition is formed, and these convex closures are similar to the wall of traditional reticulate pattern.52 is black grooves, and black well width is 20-50 micron, black groove by physical absorption by ink sorptive in groove, ink transfer quality is 1.7-3g/m
2.The height of the number dependence convex closure of ink transfer quality, namely the degree of depth of black groove controls.
Ink groove structure is a stable arc transition from bottom surface to convex closure top, and such structure makes ink not easily accumulate in black groove, has both substantially increased ink transfer efficiency, can reduce again the wash number to roll surface.
Finally by the burr grinding off surface, add the contact area of roll surface surface convex closure and scraper, the contact stress between dispersion scraper and anilox roll, contributes to reducing friction simultaneously, benefits to the service life extending scraper and anilox roll.
The coat of metal that the anilox roll of enclosed construction is suitable for can be chromium, nickel, copper, the monometallic coating of zinc, the alloy layer that also to comprise with one or more elements in chromium, nickel, copper, zinc be main component.
embodiment 2
Wear-resisting anilox roll provided by the present invention, adopt electro-deposition method on roll surface, generate the metal level of spontaneous reticulate pattern pattern, convex closure is formed after being grown up by the metallic crystal forming core of metal level, lowered zones around convex closure forms open black groove, and the wall that convex closure structure is formed is arc transition from bottom surface to convex closure top.
By controlling electro-deposition parameter, control forming core number at the metallic crystal forming core initial stage, and nucleus is grown up formation convex closure gradually.The feature of this reticulate structure is, convex closure growth dispersion, do not flock together the black groove being formed and close, and forms Open architecture, as shown in Figure 6.Open architecture can hold more ink, can meet the print request of quantity and large ink-loading.Ink well width is generally 100-300 micron, and ink transfer amount can reach 3.5-4.5g/m
2.
The coat of metal that the anilox roll of Open architecture is suitable for can be chromium, nickel, copper, the monometallic coating of zinc, the alloy layer that also to comprise with one or more elements in chromium, nickel, copper, zinc be main component.
Except above feature, the anilox roll of spontaneous reticulate pattern pattern prepared by electro-deposition also has the rear tractable feature of wearing and tearing.The coating on wearing and tearing anilox roll surface is carried out strip, plating again after polishing.It is simple that this technology has technique, and cost is low, consuming time short, the feature little to matrix damage, is therefore suitable for promoting in factory and enterprise.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (7)
1. a wear-resisting anilox roll, it is characterized in that, adopt electro-deposition method on roll surface, generate the metal level of spontaneous reticulate pattern pattern, convex closure is formed after being grown up by the metallic crystal forming core of described metal level, lowered zones around described convex closure forms closed or open black groove, and the wall that convex closure structure is formed is arc transition from bottom surface to convex closure top.
2. wear-resisting anilox roll according to claim 1, is characterized in that, when described adjacent several convex closures form closed black groove structure, black well width is 20-50 micron.
3. wear-resisting anilox roll according to claim 1, is characterized in that, when described convex closure growth dispersion forms open black groove structure, black well width is 100-300 micron.
4. a preparation method for wear-resisting anilox roll as claimed in claim 1, is characterized in that, comprise step as follows:
(1) by the polishing of metal roller core, oil removing, acid-wash activation;
(2) roller core is inserted in electroplate liquid deposit, controlled forming core number and the large size of metallic crystal by adjustment electro-deposition parameter;
(3) grinding process is carried out to the metal roll surface after plating.
5. the preparation method of wear-resisting anilox roll according to claim 4, is characterized in that, described electro-deposition parameter comprises the composition of electroplate liquid, temperature and current density.
6. the preparation method of wear-resisting anilox roll according to claim 4, is characterized in that, the described coat of metal is the monometallic coating of chromium, nickel, copper or zinc, the alloy layer that also to comprise with one or more elements in chromium, nickel, copper, zinc be main component.
7. the application of wear-resisting anilox roll in ink spreader, is characterized in that, adopts wear-resisting anilox roll as claimed in claim 1, realizes the control to ink cell volume by the control distribution of convex closure and the height of convex closure, and then controls anilox roll ink transfer amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410428975.4A CN104210228B (en) | 2014-08-27 | 2014-08-27 | Anilox roller as well as preparation method and application thereof |
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| CN201410428975.4A CN104210228B (en) | 2014-08-27 | 2014-08-27 | Anilox roller as well as preparation method and application thereof |
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| CN104210228A true CN104210228A (en) | 2014-12-17 |
| CN104210228B CN104210228B (en) | 2017-04-12 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0344332A1 (en) * | 1987-10-05 | 1989-12-06 | Kinyosha Co. Ltd. | Ink roller for printing press and production thereof |
| JP2000246902A (en) * | 1999-03-02 | 2000-09-12 | Minolta Co Ltd | Imaging apparatus |
| CN1451537A (en) * | 2003-04-28 | 2003-10-29 | 湖南百富瑞材料有限责任公司 | Method for producing and repairing ceramic knurled roll |
| CN101224660A (en) * | 2008-01-18 | 2008-07-23 | 深圳职业技术学院 | Machine-engraved roll and preparing process thereof |
| CN101557927A (en) * | 2006-12-27 | 2009-10-14 | 日立化成工业株式会社 | Engraved plate and base material having conductor layer pattern using the engraved plate |
| CN103909758A (en) * | 2013-01-09 | 2014-07-09 | 住友橡胶工业株式会社 | Flexible printed circuit board and manufacturing method thereof and method for manufacturing substrate for liquid crystal panel |
-
2014
- 2014-08-27 CN CN201410428975.4A patent/CN104210228B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0344332A1 (en) * | 1987-10-05 | 1989-12-06 | Kinyosha Co. Ltd. | Ink roller for printing press and production thereof |
| JP2000246902A (en) * | 1999-03-02 | 2000-09-12 | Minolta Co Ltd | Imaging apparatus |
| CN1451537A (en) * | 2003-04-28 | 2003-10-29 | 湖南百富瑞材料有限责任公司 | Method for producing and repairing ceramic knurled roll |
| CN101557927A (en) * | 2006-12-27 | 2009-10-14 | 日立化成工业株式会社 | Engraved plate and base material having conductor layer pattern using the engraved plate |
| CN101224660A (en) * | 2008-01-18 | 2008-07-23 | 深圳职业技术学院 | Machine-engraved roll and preparing process thereof |
| CN103909758A (en) * | 2013-01-09 | 2014-07-09 | 住友橡胶工业株式会社 | Flexible printed circuit board and manufacturing method thereof and method for manufacturing substrate for liquid crystal panel |
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| CN104210228B (en) | 2017-04-12 |
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