WO2011082516A1 - 一种凹印机 - Google Patents

一种凹印机 Download PDF

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Publication number
WO2011082516A1
WO2011082516A1 PCT/CN2010/002100 CN2010002100W WO2011082516A1 WO 2011082516 A1 WO2011082516 A1 WO 2011082516A1 CN 2010002100 W CN2010002100 W CN 2010002100W WO 2011082516 A1 WO2011082516 A1 WO 2011082516A1
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WO
WIPO (PCT)
Prior art keywords
printing
roller
air
light box
air knife
Prior art date
Application number
PCT/CN2010/002100
Other languages
English (en)
French (fr)
Inventor
刘洪生
Original Assignee
Liu Hongsheng
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Liu Hongsheng filed Critical Liu Hongsheng
Publication of WO2011082516A1 publication Critical patent/WO2011082516A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403—Drying webs
    • B41F23/0406—Drying webs by radiation
    • B41F23/0409—Ultraviolet dryers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/02—Rotary intaglio printing presses for multicolour printing
    • B41F9/023—Web printing presses
    • B41F9/025—Web printing presses with horizontally arranged printing units

Definitions

  • the utility model relates to a printing device, in particular to an ultraviolet drying 13 printing machine with good printing quality. Background technique
  • UV-curable (UV) ink printing has become a UV-curable (UV) ink printer because of its advantages of no solvent, fast drying, low energy consumption, good gloss, bright color, water resistance and good wear resistance.
  • a very important printing device that coats UV-curable inks on substrates and forms and dries them with UV light.
  • UV ultraviolet
  • the drying oven of the ink printer is open. After the printing material is coated or printed, the ink enters the drying box directly.
  • the photocuring agent in the ink will react with oxygen in the air at high temperature, which will affect the quality of printing. And it will produce a strong smell, causing environmental pollution, which is not conducive to environmental protection.
  • UV ultraviolet curing
  • the current ultraviolet curing (UV) ink is added with NH 2 or 0H resistance.
  • Oxygen agent the oxygen in the air reacts with the antioxidant chemically during drying, and prevents oxidation by consuming oxygen.
  • the ink manufacturer is in the production process. It is difficult to grasp the proportion of antioxidants, often with incomplete oxygen consumption or excess antioxidants.
  • the Applicant has invented a printing machine which is equipped with an ultraviolet drying device above the pressure roller of each printing unit to improve the sharpness and precision of printing, but the ultraviolet drying device of the gravure printing machine is It is directly placed above the pressure roller, so the heat generated by the ultraviolet drying device has a certain influence on the pressure roller, and it is necessary to improve it.
  • Utility model content [0004] In order to overcome the deficiencies of the prior art, the utility model provides a gravure printing machine which has a simple structure, high printing quality and can prevent the ultraviolet drying device from affecting the pressure roller.
  • a gravure printing machine comprising a discharge roller arranged in sequence, a printing unit composed of a plate roller, a pressure roller, a plurality of paper guide rollers, and an ink cartridge mounted under the plate roller, and the winding roller
  • the roller is connected with a power device for rotating the same, characterized in that it comprises one or more printing units, and an ultraviolet drying device is mounted on the paper guiding roller behind the pressing roller of each printing unit; the ultraviolet drying device comprises a light box, a light box An ultraviolet lamp tube is installed therein, and the sides of the light box form an inlet and an outlet of the printing material with the surface of the pressure roller, the air knife is arranged at the inlet, the air knife is provided with an air outlet; and the air outlet is provided at the outlet.
  • the air knife and the air stop device are each provided with a protection air source interface.
  • the air vent of the air knife faces the surface of the paper guide roller; the gap formed between the air vent of the air knife and the surface of the paper guide roller only allows the printing material to pass.
  • the air stopping device is formed by a plurality of partition plates disposed on the light box and distributed in an arc shape corresponding to the surface of the paper guiding roller, the partitioning plate and the guiding paper The gap formed by the surface of the roller is only allowed to pass through the printing material.
  • the utility model has the beneficial effects that: the printing machine of the utility model comprises two or more printing units, and an ultraviolet drying device is installed above the paper guiding roller behind the pressing roller of each printing unit, each plate roller After the printing is completed and dried, it enters the next printing unit, which improves the sharpness and precision of the printing.
  • an air knife and a gas stop device are respectively provided for coating or printing.
  • the ink-coated substrate is dried in a UV drying oven filled with a protective gas. The ink does not come into contact with oxygen in the air during the entire drying process, and chemical reaction is prevented. The addition of an antioxidant to the ink can be avoided.
  • the cost of the ink is conducive to the stable performance of the ink, and the production cost of the printed matter is reduced, and the environment is not polluted.
  • the printing precision and the definition are high, the power consumption is low, and the high-quality printing is required, which is strong.
  • the market is competitive.
  • FIG. 1 is a schematic structural view of the utility model
  • FIG. 2 is a schematic view of the ultraviolet drying device of the present invention.
  • a gravure printing machine comprises a discharge unit 13 arranged in sequence, a printing unit consisting of a plate roller 1, a pressure roller 2 and an ink cartridge 3 mounted under the plate roller 1 a winding roller 14, the winding roller 14 is connected with a power unit 10 for rotating the same, comprising one or more printing units, and an ultraviolet drying device is mounted on the paper guiding roller 4 of the pressing roller 2 of each printing unit;
  • the ultraviolet drying device includes a light box 5 in which an ultraviolet lamp tube 6 is mounted, and both sides of the light box 5 form a material inlet 7 and an outlet 8 with a surface of the paper guide roller 4, and the material inlet 7 is provided with gas.
  • the knife 9 and the outlet 8 are provided with a gas stopping device; the air knife 9 and the air stopping device are respectively provided with a protective air source interface 11, and each plate roller is printed and dried before entering the next printing unit, thereby improving the printing. Sharpness and precision.
  • the air vent of the air knife 9 faces the surface of the paper guide roller 4 so that the sprayed shielding gas is emitted along two tangential directions of the printing material, and the surface is blown all the way. Sweep, clear oxygen, fill the light box with another way.
  • the gap formed between the air vent of the air knife 9 and the surface of the paper guide roller 4 allows only the passage of the printing material, effectively preventing the air outside the light box from entering the light box through the gap due to the excessive gap.
  • the gas stopping device is formed by a plurality of partition plates 12 disposed on the light box 5 and distributed in an arc shape corresponding to the surface of the paper guiding roller 4, and the shielding gas is discharged from the light box.
  • the air outside the light box is prevented from entering the light box through the gap; the gap formed between the partition 12 and the surface of the paper guide roller 4 only allows the printing material to pass, further enhancing the sealing effect.
  • the substrate coated or printed with ink is subjected to purging and oxygen treatment at the outlet by an air knife, and then dried in an ultraviolet drying oven filled with a protective gas, the shielding gas It is an oxygen-free gas, which should satisfy conditions such as easy availability, low cost, non-flammable and explosive, and no environmental pollution, such as nitrogen or carbon dioxide, and of course, inert gas.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Printing Methods (AREA)

Description

说 明 书 一种凹印机 技术领域
[ 0001 ] 本实用新型涉及一种印刷设备， 特别是一种印刷 质量好的紫外线干燥 13印机。 背景技术
[ 0002 ] 紫外光固化 （ UV ) 油墨印刷由于具有不用溶剂、 干燥速度快、 耗能少、 光泽好、 色彩鲜艳、 耐水、 耐磨性能 好等优点， 紫外光固化 （ UV ) 油墨印机已成为一种非常重要 的印刷设备， 它是在承印材料上涂布紫外光固化（ U V )油墨， 并在紫外线照射下使用油墨成膜和干燥。 目前的紫外光固化
( UV ) 油墨印机的干燥箱为开放式， 在承印材料涂布或印刷 油墨后直接进入干燥箱， 油墨中的光固化剂在高温下会与空 气中的氧气发生化学反应， 影响印刷的质量， 并且会产生浓 烈的气味， 造成环境的污染， 不利于环保。
[ 0003 ] 为了防止在干燥的过程紫外线固化 （ UV ) 油墨中 的固化剂与空气中的氧气发生反应而影响印刷的质量， 目前 的紫外线固化 （ UV ) 油墨中均添加有 NH2或 0H等抗氧剂， 在 干燥时空气中的氧气与抗氧剂发生化学反应， 以消耗氧气的 方式防氧化， 而在印刷过程中， 由于油墨的厚度以及密度等 不同， 致使油墨生产厂家在生产过程中， 很难掌握抗氧剂的 比例， 常常出现耗氧不彻底或抗氧剂过剩。 而如果增加油墨 中的光固化剂量， 其增本也随之增加， 并且紫外线干燥的功 率也必须相应地增加， 能耗升高， 导致印刷品生产成本增加 许多。 为此本申请人发明了一种 印机， 该 印机是在每个 印刷单元的压辊上方安装有紫外线干燥装置， 以提高印刷的 清晰度和精度， 但是该凹印机的紫外线干燥装置是直接设置 在压辊的上方， 因此紫外线干燥装置产生的热量对压辊具有 一定的影响， 有必要对其进行改进。 实用新型内容 [ 0004 ] 为了克服现有技术上的不足， 本实用新型提供一 种结构简单、 印刷质量高且可防止紫外线干燥装置对压辊产 生影响的凹印机。
[ 0005 ] 本实用新型解决其技术问题所采用的技术方案是：
[ 0006 ] —种凹印机， 包括依次排列的放卷辊、 由版辊、 压辊、 若干导纸辊和安装于版辊下方的油墨盒组成的印刷单 元和收卷辊， 所述收卷辊连接有使其旋转的动力装置， 其特 征在于它包括一个及以上的印刷单元， 每个印刷单元的压辊 后的导纸辊上安装有紫外线干燥装置； 所述紫外线干燥装置 包括灯箱， 灯箱内安装有紫外线灯管， 所述灯箱的两侧边与 压辊的表面形成承印材料的入口和出口， 所述入口处设置有 气刀， 气刀设置有喷气口； 在出口处设置有止气装置； 所述 气刀和止气装置均设置有保护气源接口。
[ 0007 ] 作为本实用新型的进一步改进， 所述气刀的喷气 口正对导纸辊的表面； 所述气刀的喷气口与导纸辊的表面形 成的间隙仅容承印材料通过。
[ 0008 ] 作为本实用新型的更进一步改进， 所述止气装置 由设置在灯箱上、 并呈与导纸辊表面相适应的弧形分布的多 个隔板形成， 所述隔板与导纸辊的表面形成的间隙仅容承印 材料通过。
[ 0009 ] 本实用新型的有益效果是： 本实用新型的 印机 包括两个及以上的印刷单元组成， 每个印刷单元的压辊后的 导纸辊上方安装有紫外线干燥装置， 每个版辊印刷完成并干 燥后才进入下一印刷单元， 提高了印刷的清晰度和精度， 而 紫外线干燥装置的灯箱两侧的入口处和出 口处分别设置有 气刀和止气装置， 使涂布或印刷有油墨的承印材料在充有保 护气体的紫外光干燥箱中进行干燥， 整个干燥过程中油墨不 会与空气中的氧气接触而发生化学反应， 可避免在油墨中添 加抗氧剂， 不但降低了油墨的成本， 有利于油墨的性能稳定， 而且降低了印刷品的生产成本， 并且不会对环境造成污染， 其印刷精度和清晰度高、功耗低， 能满足高质量印刷的需要， 具有很强的巿场竟争力。 附图说明
[ 00010 ] 下面结合附图和实施例对本实用新型进一步说 明。
[ 00011 ] 图 1是本实用新型的结构示意图；
[ 00012 ] 图 2是本实用新型的紫外线干燥装置的示意图。
具体实施方式
[ 00013 ] 参照图 1、 图 2， 一种凹印机， 包括依次排列的 放卷辊 13、 由版辊 1、 压辊 2和安装于版辊 1下方的油墨盒 3 组成的印刷单元和收卷辊 14, 所述收卷辊 14 连接有使其 旋转的动力装置 10， 它包括一个及以上的印刷单元， 每个印 刷单元的压辊 2的导纸辊 4上安装有紫外线干燥装置； 所述 紫外线干燥装置包括灯箱 5, 灯箱 5 内安装有紫外线灯管 6, 所述灯箱 5的两侧边与导纸辊 4 的表面形成材料入口 7和出 口 8， 所述材料入口 7 处设置有气刀 9， 出口 8 处设置有止 气装置； 所述气刀 9和止气装置均设置有保护气源接口 11, 每个版辊印刷完成并干燥后才进入下一印刷单元， 提高了印 刷的清晰度和精度。
[ 00014 ] 作为本实用新型的进一步改进， 所述气刀 9 的喷 气口正对导纸辊 4 的表面， 以便喷出的保护气体沿承印材料 的两条切线方向射出， 一路对其表面进行吹扫、 清氧处理， 另一路填充灯箱。 所述气刀 9 的喷气口与导纸辊 4 的表面形 成的间隙仅容承印材料通过， 有效地防止了由于间隙过大而 灯箱外的空气通过间隙进入灯箱内。
[ 00015 ] 作为本实用新型的进一步改进， 所述止气装置由 设置在灯箱 5上、 并呈与导纸辊 4表面相适应的弧形分布的 多个隔板 12形成， 保护气体在排出灯箱时在隔板 12形成的 间隔中回旋， 防止灯箱外的空气通过间隙进入灯箱内； 所述 隔板 12 与导纸辊 4 的表面形成的间隙仅容承印材料通过， 进一步增强了密封的效果。
[ 00016 ] 在涂布或印刷有油墨的承印材料在出口处由气刀 对其表面进行吹扫、 清氧处理， 然后使用其在充有保护气体 的紫外光干燥箱中进行干燥， 该保护气体是不含氧份的气 体， 其应该满足容易制取、 价钱低廉、 不易燃易爆并且不会 对环境造成污染等条件， 如氮气或二氧化碳等， 当然也可以 是惰性气体等。
[ 00017 ] 由于在整个干燥过程中油墨不会与空气中的氧气 接触而发生化学反应， 可避免在油墨中添加抗氧剂， 不但降 低了油墨的成本， 有利于油墨的性能稳定， 而且降低了印刷 品的生产成本， 提高了印刷的质量， 并且不会对环境造成污 染， 其印刷精度和清晰度高、 功耗低， 能满足高质量印刷的 需要， 具有很强的巿场竟争力。

Claims

权利要求书
1、 一种 M印机， 包括依次排列的放卷辊 （ 13)、 由版辊 ( 1 )、 压辊 （ 2 )、 若干导纸辊 （ 4 ) 和安装于版辊 （ 1 ) 下方 的油墨盒 （ 3 ) 组成的印刷单元和收卷辊 （ 14 ), 所述收卷辊 ( 14 ) 连接有使其旋转的动力装置 （ 10)， 其特征在于它包 括一个及以上的印刷单元， 每个印刷单元的压辊 （ 2 ) 后的 导纸辊 （ 4 ) 上安装有紫外线干燥装置； 所述紫外线干燥装 置包括灯箱 （ 5 ), 灯箱 （ 5 ) 内安装有紫外线灯管 （ 6 ), 所 述灯箱 （ 5 ) 的两侧边与导纸辊 （ 4 ) 的表面形成承应材料的 入口 （ 7 ) 和出口 （ 8 ), 所述入口 （ 7 ) 处设置有气刀 （ 9 ), 气刀设置有喷气口； 在出口 （ 8 ) 处设置有止气装置； 所述 气刀 （ 9 ) 和止气装置均设置有保护气源接口 （ 11 )。
2、 根据权利要求 1 所述的一种 DS印机， 其特征在于所 述气刀 （ 9 ) 的喷气口正对导纸辊 （ 4 ) 的表面。
3、 根据权利要求 1 所述的一种四印机， 其特征在于所 述气刀 （ 9 ) 的喷气口与导纸辊 （ 4 ) 的表面形成的间隙仅容 承印材料通过。
4、 根据权利要求 1 所述的一种四印机， 其特征在于所 述止气装置由设置在灯箱 （ 5 ) 上、 并呈与导纸辊 （ 4 ) 表面 相适应的弧形分布的多个隔板 （ 12 ) 形成， 所述隔板 （ 12 ) 与导纸辊 （ 4 ) 的表面形成的间隙仅容承印材料通过。
PCT/CN2010/002100 2010-01-09 2010-12-20 一种凹印机 WO2011082516A1 (zh)

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CN2010200268811U CN201587165U (zh) 2010-01-09 2010-01-09 一种凹印机
CN201020026881.1 2010-01-09

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CN102615963A (zh) * 2012-04-01 2012-08-01 深圳劲嘉彩印集团股份有限公司 单张纸电子束印刷滚压式除氧设备及除氧方法
CN110893388A (zh) * 2019-12-17 2020-03-20 佛山鹏程易胜机械有限公司 一种可设定任意位置做二次涂布的凹版涂布设备

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CN201587165U (zh) * 2010-01-09 2010-09-22 刘洪生 一种凹印机
CN102294876A (zh) * 2011-07-04 2011-12-28 浙江伟博包装印刷品有限公司 一种uv凹版印刷系统
CN102501587A (zh) * 2011-11-23 2012-06-20 贵州劲嘉新型包装材料有限公司 带超声波干燥装置的凹印机
CN106004013A (zh) * 2016-05-13 2016-10-12 云南中烟工业有限责任公司 一种无溶剂凹版印刷装置及其使用方法

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CN201261292Y (zh) * 2008-08-01 2009-06-24 刘洪生 一种凹印机
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CN102615963A (zh) * 2012-04-01 2012-08-01 深圳劲嘉彩印集团股份有限公司 单张纸电子束印刷滚压式除氧设备及除氧方法
CN110893388A (zh) * 2019-12-17 2020-03-20 佛山鹏程易胜机械有限公司 一种可设定任意位置做二次涂布的凹版涂布设备
CN110893388B (zh) * 2019-12-17 2021-09-24 佛山鹏程易胜机械有限公司 一种可设定任意位置做二次涂布的凹版涂布设备

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