CN102886979A - Flexible scraping knife for soft printing plate/gravure printing plate - Google Patents
Flexible scraping knife for soft printing plate/gravure printing plate Download PDFInfo
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- CN102886979A CN102886979A CN2012104328590A CN201210432859A CN102886979A CN 102886979 A CN102886979 A CN 102886979A CN 2012104328590 A CN2012104328590 A CN 2012104328590A CN 201210432859 A CN201210432859 A CN 201210432859A CN 102886979 A CN102886979 A CN 102886979A
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Abstract
The invention provides a flexible (printing ink) scraping knife for a soft printing plate/gravure printing plate. According to the flexible (printing ink) scraping knife for the soft printing plate/gravure printing plate, a flexible strip body is adhered on a rear strip shaped supporting knife; one angle of the flexible strip body is in surface contact with a soft printing anilox roller or a gravure printing roller; and the excessive printing ink can be removed by rubbing the soft printing anilox roller or the gravure printing roller. With the adoption of the flexible (printing ink) scraping knife for the soft printing plate/gravure printing plate provided by the invention, the printing quality can be improved, and the usage cost of the scraping knife can be reduced.
Description
Technical field
The present invention relates to the printing consumable material technical field, be specifically related to a kind of flexo or gravure ink knife.
Background technology
Existing gentle version and photogravure ink scraper all are the sharp rigid scrapers of cutting edge, and its effect is to scrape off the unnecessary printing ink of flexographic printing anilox roll or gravure printing roller surface.As shown in Figure 5, be that line contacts between its cutting edge and flexographic printing anilox roll or the gravure printing roller, cutting edge very easily weares and teares or is scratched, thus easily cause wiping residual, easily cause the printing quality problem.For this reason, Chinese utility model patent CN201979788U discloses " a kind of printing ink scraping knife with titanium nitride metal coating ", it has carried out chromium plating and plating titanium nitride metal film at rigid scraper, with service life of the hardness that strengthens rigid scraper and wearability, the strong rigid scraper of prolongation, reduce the scraper use cost.
Summary of the invention
Purpose of the present invention: provide a kind of gentle version/intaglio plate flexible scraper, to improve printing quality, to reduce the scraper use cost.
Technical scheme of the present invention is as follows.
A kind of gentle version/intaglio plate flexible scraper comprises that ribbon supports back of the body cutter (1), is characterized in that: a, support back of the body cutter (1) at ribbon and be pasted with flexible strip belt body (2); For face contacts, wipe unnecessary printing ink by friction flexographic printing anilox roll (3) between a jiao (5) of b, described flexible strip belt body (2) and the flexographic printing anilox roll (3); Perhaps, for face contacts, wipe unnecessary printing ink by friction gravure printing roller (4) between a jiao (5) of described flexible strip belt body (2) and the gravure printing roller (4).
Preferably, one jiao (5) of described flexible strip belt body (2) are 70-120 degree angle (being preferably the right angle); Perhaps, described ribbon support back of the body cutter (1) is that thickness is that 0.5-3mm, width are carbon fiber or acrylic or the glass fibre reinforced plastics belt body of 25-85mm.
More preferably, described flexible strip belt body (2) is that thickness is that 0.8-3.5mm, width are that 5-35mm, shore hardness are that 85A-95A, density are the polyurethane strips belt body of 300-700kg/m3.
Compared with prior art, the present invention can produce following useful technique effect.
One, the present invention have broken through the technology prejudice of traditional scraper.The tradition scraper is that rigid material is made, and firmlyer makes an appointment, more sharp better, more wear-resisting better.Being that line contacts between cutting edge and flexographic printing anilox roll or the gravure printing roller, is the mentality of designing of " firm with firm gram ", and cutting edge very easily weares and teares or is scratched, easily cause wiping residual, easily cause the printing quality problem.The present invention acts in a diametrically opposite way, and adopts flexible material to make scraper, and cutting edge is not sharp, is that face contacts between cutting edge and flexographic printing anilox roll or the gravure printing roller, is the design of " defeating a force with a tenderness ", and cutting edge is not easy to wear or be difficult for being scratched.Therefore, wiping totally, can not cause a large amount of printing quality problems.
Owing to be that face contact between not sharp, the cutting edge of cutting edge of the present invention and flexographic printing anilox roll or the gravure printing roller, be the design of " defeating a force with a tenderness " two,, not easy to wear, difficult scuffing.Therefore, flexible scraper of the present invention is very durable, can greatly reduce the scraper use cost.
Three, experiment shows that flexible scraper of the present invention is compared with background technology, also has the technological merit of following eight aspects.
1. can repeatedly grind reparation, have the service life of overlength, compare with existing rigid scraper, life is more than 16 times.
2. at the image-text area that contacts with gravure printing roller, flexible strip belt body (2) contacts closelyr, can not produce the picture and text angle that causes owing to the scraper injustice, and the graphics resolution that therefore produces is higher.
3. flexible strip belt body (2) is very low to the wearing and tearing of forme, thereby has greatly prolonged the roller life-span, can ensure the priority uniformity of forme picture and text.
4. ribbon support back of the body cutter (1) is the high strength non-metallic sheet, can not produce bending deformation, and therefore flexible belt body is in level all the time on knife rest.And traditional steel spatula, the easily local or whole bending distortion of generation, and distortion can not recover the so just easy side-to-side shading that produces printing, and because the cutter silk phenomenon that local bending distortion causes fully.
5. because flexible strip belt body (2) is flexible material, therefore the galling chip can not be produced, also the cutter silk phenomenon that chip causes can be therefore do not produced.Traditional steel spatula because wearing and tearing usually have metal fragment to enter in the middle of the printing ink, is taken to the scraper zone by printing ink again, produces periodic cutter silk phenomenon.
6. because flexible strip belt body (2) is flexible material, fricative noise is little.
7. because flexible strip belt body (2) is flexible material, in printing process, can improve the viscosity of printing ink, this becomes easier so that print thick China ink layer in intaglio printing.Traditional steel spatula can not adapt to full-bodied printing ink, and when ink viscosity improved, wiping was inhomogeneous, and can not scrape totally, even therefore the half tone degree of depth improves, well transfer of ink can't realize the meticulous printing of thick China ink layer.
8. the adaptability of flexible strip belt body (2) in the high viscosity inks situation is very stable, therefore improving the intaglio plate degree of depth, improves in the situation of ink viscosity, can realize meticulous thick China ink layer printing.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, integrated optimization embodiment cited below particularly, and cooperate accompanying drawing to be elaborated.
Description of drawings
Fig. 1 is a kind of intaglio plate flexible scraper structural representation of the present invention (embodiment).
Fig. 2 is the present invention's (embodiment) a kind of gentle version flexible scraper structural representation.
Fig. 3 is a kind of flexible strip belt body (2) structural representation that the present invention (embodiment) uses.
Fig. 4 is existing intaglio plate rigid scraper structural representation.
Fig. 5 is a jiao (5) of flexible strip belt body (2) among Fig. 1 and the local structure for amplifying schematic diagram of contact-making surface (7) between the gravure printing roller (4).
Drawing reference numeral: the 1-ribbon supports back of the body cutter, 2-flexible strip belt body, 3-flexographic printing anilox roll, 4-gravure printing roller, 5-(flexible strip belt body) one jiao, the existing rigid scraper of 6-, 7-contact-making surface.
The specific embodiment
Embodiment one.
Such as Fig. 1, shown in Figure 5, order that a kind of 420mm is long, 50mm is wide, 0.8mm is thick, the good carbon fibre of deflection (also useable glass fiber) material band, it is supported back of the body cutter (1) as ribbon.
As shown in Figure 3, order that a kind of 420mm is long, thickness is that 1.5mm, width are that 15mm, shore hardness are that 85A-95A, density are the polyurethane strips belt body of 300-700kg/m3, with it as flexible strip belt body (2).
As shown in Figure 1, flexible strip belt body (2) is securely adhered to ribbon supports on the back of the body cutter (1), thereby make a kind of intaglio plate flexible scraper of the present invention.
A kind of intaglio plate that previous step is made is installed on the intaglio printing press with flexible scraper, make one angle (5) firmly press to gravure printing roller (4), so that between flexible strip belt body (2) jiaos (5) and the gravure printing roller (4), owing to compressive deformation forms a contact-making surface (7) that 1mm * 420mm is wide.
So, during the start printing, along with the rotation of gravure printing roller (4), the wide contact-making surface (7) of above-mentioned 1mm * 420mm will be wiped the upper unnecessary printing ink of (wiping off) gravure printing roller (4).
Embodiment two.
Such as Fig. 2, shown in Figure 5, order that a kind of 420mm is long, 50mm is wide, 1mm is thick, the good acrylic material of deflection band, it is supported back of the body cutter (1) as ribbon.
As shown in Figure 3, order that a kind of 420mm is long, thickness is that 1.2mm, width are that 15mm, shore hardness are that 85A-95A, density are the polyurethane strips belt body of 300-700kg/m3, with it as flexible strip belt body (2).
As shown in Figure 2, flexible strip belt body (2) is securely adhered to ribbon supports on the back of the body cutter (1), thereby make a kind of gentle version flexible scraper of the present invention.
A kind of gentle version that previous step is made is installed on the flexible printing press with flexible scraper, make one angle (5) firmly press to flexographic printing anilox roll (3), so that between flexible strip belt body (2) jiaos (5) and the flexographic printing anilox roll (3), owing to compressive deformation forms a contact-making surface (7) that 0.7mm * 420mm is wide.
So, during the start printing, along with the rotation of flexographic printing anilox roll (3), the wide contact-making surface (7) of above-mentioned 0.7mm * 420mm will be wiped the upper unnecessary printing ink of (wiping off) flexographic printing anilox roll (3).
Above disclosed only is preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (3)
1. gentle version/intaglio plate flexible scraper comprises that ribbon supports back of the body cutter (1), is characterized in that: a, carry on the back cutter (1) in the ribbon support and be pasted with flexible strip belt body (2); For face contacts, wipe unnecessary printing ink by friction flexographic printing anilox roll (3) between a jiao (5) of b, described flexible strip belt body (2) and the flexographic printing anilox roll (3); Perhaps, for face contacts, wipe unnecessary printing ink by friction gravure printing roller (4) between a jiao (5) of described flexible strip belt body (2) and the gravure printing roller (4).
2. according to gentle version/intaglio plate flexible scraper claimed in claim 1, it is characterized in that: a jiao (5) of described flexible strip belt body (2) are 70-120 degree angle; Perhaps, described ribbon support back of the body cutter (1) is that thickness is that 0.5-3mm, width are carbon fiber or acrylic or the glass fibre reinforced plastics belt body of 25-85mm.
3. according to claim 1 or 2 described gentle version/intaglio plate flexible scrapers, it is characterized in that: described flexible strip belt body (2) is that thickness is that 0.8-3.5mm, width are that 5-35mm, shore hardness are that 85A-95A, density are the polyurethane strips belt body of 300-700kg/m3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104328590A CN102886979A (en) | 2012-11-03 | 2012-11-03 | Flexible scraping knife for soft printing plate/gravure printing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104328590A CN102886979A (en) | 2012-11-03 | 2012-11-03 | Flexible scraping knife for soft printing plate/gravure printing plate |
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| Publication Number | Publication Date |
|---|---|
| CN102886979A true CN102886979A (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104328590A Pending CN102886979A (en) | 2012-11-03 | 2012-11-03 | Flexible scraping knife for soft printing plate/gravure printing plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN102886979A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240982A (en) * | 2013-05-30 | 2013-08-14 | 昆山欧莱特印刷机械工业有限公司 | Scraper device of pad printing machine |
| CN104608488A (en) * | 2015-01-15 | 2015-05-13 | 长兴艾飞特塑料科技有限公司 | Ink scraping structure of oil printing equipment |
| CN110001185A (en) * | 2019-04-08 | 2019-07-12 | 黄焕生 | A kind of printing equipment of flexible printing machine |
| CN113474171A (en) * | 2019-03-28 | 2021-10-01 | 群岛科技集团有限公司 | Device, method and assembly for loading a nozzle with a fluid |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB760896A (en) * | 1954-11-22 | 1956-11-07 | Edmund Arthur Rogge | Doctor blade and mounting for rotogravure printing machines |
| US5001979A (en) * | 1984-07-07 | 1991-03-26 | Kuerten Rudolf A | Pressure head for a screen printing press |
| CN201030677Y (en) * | 2007-06-08 | 2008-03-05 | 陕西科技大学 | Flexible printing forward doctor |
| CN101870195A (en) * | 2010-06-10 | 2010-10-27 | 林添福 | Scraping blade for printing machine |
| CN202965504U (en) * | 2012-11-03 | 2013-06-05 | 海南亚元防伪技术研究所 | Flexible scraper for flexography or gravure |
-
2012
- 2012-11-03 CN CN2012104328590A patent/CN102886979A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB760896A (en) * | 1954-11-22 | 1956-11-07 | Edmund Arthur Rogge | Doctor blade and mounting for rotogravure printing machines |
| US5001979A (en) * | 1984-07-07 | 1991-03-26 | Kuerten Rudolf A | Pressure head for a screen printing press |
| CN201030677Y (en) * | 2007-06-08 | 2008-03-05 | 陕西科技大学 | Flexible printing forward doctor |
| CN101870195A (en) * | 2010-06-10 | 2010-10-27 | 林添福 | Scraping blade for printing machine |
| CN202965504U (en) * | 2012-11-03 | 2013-06-05 | 海南亚元防伪技术研究所 | Flexible scraper for flexography or gravure |
Non-Patent Citations (1)
| Title |
|---|
| 彭鸣刚: "刮墨刀的主要参数与特色应用", 《包装工程》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240982A (en) * | 2013-05-30 | 2013-08-14 | 昆山欧莱特印刷机械工业有限公司 | Scraper device of pad printing machine |
| CN104608488A (en) * | 2015-01-15 | 2015-05-13 | 长兴艾飞特塑料科技有限公司 | Ink scraping structure of oil printing equipment |
| CN113474171A (en) * | 2019-03-28 | 2021-10-01 | 群岛科技集团有限公司 | Device, method and assembly for loading a nozzle with a fluid |
| CN110001185A (en) * | 2019-04-08 | 2019-07-12 | 黄焕生 | A kind of printing equipment of flexible printing machine |
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