JP3796547B2 - Wiping liquid circulation device for intaglio printing press - Google Patents
Wiping liquid circulation device for intaglio printing press Download PDFInfo
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- JP3796547B2 JP3796547B2 JP16670997A JP16670997A JP3796547B2 JP 3796547 B2 JP3796547 B2 JP 3796547B2 JP 16670997 A JP16670997 A JP 16670997A JP 16670997 A JP16670997 A JP 16670997A JP 3796547 B2 JP3796547 B2 JP 3796547B2
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【０００１】
【発明の属する技術分野】
この発明は、凹版印刷機のワイピング液循環装置に関するものである。
【０００２】
【従来の技術】
従来、凹版印刷機において版胴のワイピング作業を行う場合、一定量（概ね150 リットル）のワイピング液を蓄えた単独のワイピング液槽を使用して行う方法が一般的である。しかしこの従来の単独のワイピング液槽で行う方法には以下のような問題があった。▲１▼ワイピング液は印刷経時とともにインキで汚れて次第に洗浄力を保持できなくなるため、１〜２回／日程度の頻度でワイピング液を交換する必要がある。▲２▼使用済みのワイピング液（ワイピング廃液）は、産業廃棄物となり、その処理には費用が掛かることから、前記▲１▼記載のように１〜２回／日程度の頻度でワイピング液を交換すると、ワイピング廃液処理費用が多大となる。▲３▼ワイピング液を交換する際、ワイピング液槽内部を水道水などを用いて清掃する作業が伴うが、この際、ワイピング液槽内に堆積したインキのへどろは流動性が悪く、その排出が極めて困難であり、作業性が悪い。▲４▼印刷中、ワイピングローラで拭き取られたインキがワイピング液に混入することに伴い、次第にワイピング液槽内の液面レベルが上昇することとなるが、この際、作業者は液面レベルを一定に管理するための操作（液排出バルブの開閉操作など）を行う必要がある。▲５▼ワイピング液を交換する際、手動で各種バルブ開閉操作などを行う必要があるなどが挙げられる。
【０００３】
【発明が解決しようとする課題】
この発明は、前記の諸問題を解決するために、既設の単独のワイピング液槽の他に、槽外に独立した循環槽を設け、両槽間を一定量の洗浄液を循環させながら、印刷を行うことなどができるようになしたものであり、その目的とするところは、とくに特殊なインキとして、たとえば紫外線硬化型インキを使用する際に、洗浄液にインキが溶け込み、洗浄液自体のＰＨ値が酸性化して洗浄効果の低下を招くこと、および凹版胴とワイピングローラが常時回転しながら接触しているため、ローラ自体が熱により偏膨張を起こし、またこのワイピングローラの熱が、洗浄液の液温を上昇させることによる洗浄液の洗浄効果の低下を招くことを防止することにある。
【０００４】
【課題を解決するための手段】
ワイピング槽(3) 内において、凹版胴(1) 版面に付着した余分なインキを拭き取るワイピングローラ(2) と、このワイピングローラ(2) の表面に付着したインキを洗浄する洗浄ユニット(5) を設け、ワイピング槽(3) 内の洗浄液(4) を循環戻り配管(7) 、循環戻り用ポンプ(20)を設けて、ワイピング槽(3) 外に設けた循環槽(11)の第一槽(9) に流入させるようになし、この循環槽(11)は仕切り板(12)によって二分割されており、第一槽(9) の上部液(a) はこの仕切り板(12)を越えて第二槽(10)に流入するようになし、第二槽(10)でインキ分を取り除いた洗浄液(4) のＰＨ値を測定するＰＨ計(16)を設け、その値を任意に設定した値に管理するため、苛性ソーダを収容する補充槽(14)と、苛性ソーダの注入量を調節する前記ＰＨ計(16)と連動する電磁弁(15)を設け、また第二槽(10)に洗浄液(4) を攪拌する攪拌機(17)を設け、さらに温度管理用にこの第二槽(10)内に電気ヒータ(18)と冷水循環管(19)を設け、再生した洗浄液(4) を送る循環送り配管(8) 、循環送り用ポンプ(21)をワイピング槽(3) に連結し、廃液処理用ポンプ(22)を第二層(10)下部に設けたことを特徴とする凹版印刷機のワイピング液循環装置(A) および循環槽(11)の底板(13)を、ごく微小で無数の孔が開いた板体としたことを特徴とする前記記載の凹版印刷機のワイピング液循環装置(A) の構成とする。
【０００５】
【発明の実施の形態】
この発明のワイピング液循環装置(A) は、ワイピング槽(3) 内において、凹版胴(1) 版面に付着した余分なインキを、ワイピングローラ(2) で拭き取り、このワイピングローラ(2) の表面に付着したインキを、洗浄液(4) に浸漬した洗浄ユニット(5) で洗浄する。ここで洗浄ユニット(5) で拭き取ったインキは洗浄液(4) に溶け込むため、洗浄液(4) を次第に老化させ、洗浄効果を低下させる。そこでワイピング槽(3) 内の洗浄液(4) を循環戻り配管(7) 、循環戻り用ポンプ(20)によって、ワイピング槽(3) 外に設けた循環槽(11)の第一槽(9) に流入させ、この第一槽(9) で洗浄液(4) 中のインキを沈殿させる。循環槽(11)は仕切り板(12)によって二分割されている。つぎに第一槽(9) の上部液(a) のみを、仕切り板(12)を越えて第二槽(10)に流入させる。この第二槽(10)ではインキ分を取り除いた洗浄液(4) に対し、ＰＨ計(16)でこの洗浄液(4) のＰＨ値を測定し、その値を任意に設定した値に管理するため、補充槽(14)から苛性ソーダを注入し、攪拌機(17)で洗浄液(4) を攪拌する。苛性ソーダの注入量については、ＰＨ計(16)と連動して電磁弁(15)が開閉する。また温度管理については第二槽(10)に設けた電気ヒータ(18)と、冷水循環管(19)内を通る冷水により、任意に設定した値に常時保ち、洗浄液(4) を再生した後、循環送り配管(8) 、循環送り用ポンプ(21)によってワイピング槽(3) に送る。なお循環槽(11)の底板(13)を孔無しのいわゆる盲板から、ごく微小で無数の孔が開いたパンチング板にすれば、パンチング板が濾過作用を行い、仕切り板(12)の下部より第二槽(10)に洗浄液(4) が送られることになる。洗浄液(4) が再生しても洗浄効果が上がらなくなった場合には、洗浄液(4) を循環槽(11)に全量回収し、廃液処理用ポンプ(22)で層外の廃液処理場へ廃液を移送する。
【０００６】
【実施例】
図１はこの発明のワイピング液循環装置(A) を示し、その構成はワイピング槽(3) 内において、凹版胴(1) 版面に付着した余分なインキを、ワイピングローラ(2) で拭き取り、このワイピングローラ(2) の表面に付着したインキを、洗浄液(4) に浸漬した洗浄ユニット(5) で洗浄する。ここで洗浄ユニット(5) で拭き取ったインキは洗浄液(4) に溶け込むため、洗浄液(4) を次第に老化させ、洗浄効果を低下させる。そこでワイピング槽(3) 内の洗浄液(4) を循環戻り配管(7) 、循環戻り用ポンプ(20)によって、ワイピング槽(3) 外に設けた循環槽(11)の第１槽(9) に流入させ、この第一槽(9) で洗浄液(4) 中のインキを沈殿させる。循環槽(11)は仕切り板(12)によって二分割されている。つぎに第一槽(9) の上部液(a) のみを、仕切り板(12)を越えて第二槽(10)に流入させる。
【０００７】
そして紫外線硬化型インキを使用する際に、洗浄液にそのインキが溶け込み、洗浄液自体のＰＨ値が酸性化して洗浄効果の低下を招くこととなるので、この第二槽(10)ではインキ分を取り除いた洗浄液(4) に対し、ＰＨ計(16)でそのＰＨ値を測定し、その値を任意に設定した値に管理するため、補充槽(14)から苛性ソーダを注入し、攪拌機(17)で洗浄液(4) を攪拌する。苛性ソーダの注入量については、ＰＨ計(16)と連動して電磁弁(15)が開閉する。また温度管理については第二槽(10)に設けた［必要に応じて複数の］電気ヒータ(18)と、冷水循環管(19)内を通る冷水により、任意に設定した値に常時保ち、これらによって洗浄液(4) を再生した後、循環送り配管(8) 、循環送り用ポンプ(21)によってワイピング槽(3) に送る。なお循環槽(11)の底板(13)を孔無しのいわゆる盲板から、ごく微小で無数の孔が開いた板にすれば、前記板が濾過作用を行い、仕切り板(12)の下部より第二槽(10)に洗浄液(4) が送られることになる。そして洗浄液(4) を再生しても洗浄効果が上がらなくなった場合には、洗浄液(4) を循環槽(11)に全量回収し、廃液処理用ポンプ(22)で層外の廃液処理場へと廃液を移送する。
【０００８】
【発明の効果】
この発明によれば、ワイピング洗浄液の交換頻度を減少させその効率的使用が達成できるとともに、ワイピング液の廃液による産業廃棄物処理の費用を削減することができる。とくに紫外線硬化型インキを使用する際に、洗浄液にインキが溶け込み、洗浄液自体のＰＨ値が酸性化して洗浄効果の低下を招くことに対する洗浄液のＰＨ値の管理、さらに液温の管理を自動的に行うことができるので、作業の効率と作業者の負荷軽減が図られる。また洗浄液の状態を一定に保つことによって、印刷物の品質が安定し、洗浄液の温度を一定に保つことによって、ワイピングローラの交換頻度が減少し、それによっても作業の効率化に寄与するところが大である。
【図面の簡単な説明】
【図１】この発明の凹版印刷機のワイピング液循環装置を示す図。
【符号の説明】
(1) 凹版胴
(2) ワイピングローラ
(3) ワイピング槽
(4) 洗浄液
(5) 洗浄ユニット
(6) 液面センサー
(7) 循環戻り配管
(8) 循環送り配管
(9) 第一槽
(10) 第二槽
(11) 循環槽
(12) 仕切り板
(13) 底板
(14) 補充槽
(15) 電磁弁
(16) ＰＨ計
(17) 攪拌機
(18) ヒータ
(19) 冷水循環槽
(20) 循環戻り用ポンプ
(21) 循環送り用ポンプ
(22) 廃液処理用ポンプ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wiping liquid circulating apparatus for an intaglio printing press.
[0002]
[Prior art]
Conventionally, when performing wiping work of a plate cylinder in an intaglio printing machine, a method of using a single wiping liquid tank storing a certain amount (approximately 150 liters) of wiping liquid is generally used. However, this conventional method using a single wiping liquid tank has the following problems. {Circle around (1)} Since the wiping liquid is stained with ink as the printing time elapses, the cleaning power cannot be maintained gradually. Therefore, it is necessary to replace the wiping liquid at a frequency of about 1 to 2 times / day. (2) The used wiping liquid (wiping waste liquid) becomes industrial waste, and its processing is costly. Therefore, as described in (1) above, the wiping liquid is frequently used once or twice a day. If it is exchanged, the wiping waste liquid treatment cost becomes large. (3) When replacing the wiping liquid, it is necessary to clean the inside of the wiping liquid tank with tap water or the like. At this time, the ink sludge accumulated in the wiping liquid tank has poor fluidity and is discharged. Is extremely difficult and workability is poor. (4) During printing, as the ink wiped off by the wiping roller is mixed into the wiping liquid, the liquid level in the wiping liquid tank gradually rises. It is necessary to perform an operation (such as opening / closing the liquid discharge valve) for maintaining the pressure constant. (5) When replacing the wiping liquid, it is necessary to manually perform various valve opening / closing operations.
[0003]
[Problems to be solved by the invention]
In order to solve the above problems, the present invention provides an independent circulation tank outside the tank in addition to the existing single wiping liquid tank, and performs printing while circulating a certain amount of cleaning liquid between both tanks. The purpose of this is especially when using, for example, UV curable ink as a special ink, the ink dissolves in the cleaning liquid, and the pH value of the cleaning liquid itself is acidic. The intaglio cylinder and the wiping roller are always in contact with each other while rotating, and the roller itself undergoes partial expansion due to heat, and the heat of the wiping roller reduces the temperature of the cleaning liquid. It is to prevent the cleaning effect of the cleaning liquid from being lowered due to the increase.
[0004]
[Means for Solving the Problems]
In the wiping tank (3), there are a wiping roller (2) for wiping off excess ink adhering to the intaglio cylinder (1) and the washing unit (5) for cleaning ink adhering to the surface of the wiping roller (2). Install the cleaning liquid (4) in the wiping tank (3) with the circulation return pipe (7) and the circulation return pump (20), and the first tank of the circulation tank (11) provided outside the wiping tank (3) The circulation tank (11) is divided into two by the partition plate (12), and the upper liquid (a) of the first tank (9) exceeds the partition plate (12). A PH meter (16) is provided to measure the PH value of the cleaning liquid (4) from which ink has been removed in the second tank (10). In order to manage the value, a replenishment tank (14) for containing caustic soda, and a solenoid valve (15) linked to the PH meter (16) for adjusting the injection amount of caustic soda are provided, and a second tank (10) A stirrer (17) that stirs the cleaning liquid (4) is provided, and an electric heater (18) and a cold water circulation pipe (19) are provided in the second tank (10) for temperature control, and the regenerated cleaning liquid (4) The intaglio is characterized in that the circulation feed pipe (8), the circulation feed pump (21) is connected to the wiping tank (3), and the waste liquid treatment pump (22) is provided below the second layer (10). The wiping liquid for an intaglio printing machine according to the above, wherein the wiping liquid circulating device (A) of the printing press and the bottom plate (13) of the circulation tank (11) are made into plates having very small and numerous holes. The circulation device (A) is used.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
In the wiping liquid circulation device (A) of the present invention, in the wiping tank (3), excess ink adhering to the intaglio cylinder (1) plate surface is wiped off by the wiping roller (2), and the surface of the wiping roller (2) The ink adhering to is washed with the washing unit (5) immersed in the washing liquid (4). Here, since the ink wiped off by the cleaning unit (5) is dissolved in the cleaning liquid (4), the cleaning liquid (4) is gradually aged to reduce the cleaning effect. Therefore, the cleaning liquid (4) in the wiping tank (3) is circulated by the circulation return pipe (7) and the circulation return pump (20), and the first tank (9) of the circulation tank (11) provided outside the wiping tank (3). The ink in the washing liquid (4) is precipitated in the first tank (9). The circulation tank (11) is divided into two by a partition plate (12). Next, only the upper liquid (a) in the first tank (9) is allowed to flow into the second tank (10) over the partition plate (12). In this second tank (10), the pH value of the cleaning liquid (4) is measured with the PH meter (16) for the cleaning liquid (4) from which ink has been removed, and the value is managed to an arbitrarily set value. Then, caustic soda is poured from the replenishing tank (14), and the cleaning liquid (4) is stirred by the stirrer (17). About the injection quantity of caustic soda, the solenoid valve (15) opens and closes in conjunction with the PH meter (16). For temperature control, the electric heater (18) provided in the second tank (10) and the cold water passing through the cold water circulation pipe (19) are always kept at an arbitrarily set value, and the cleaning liquid (4) is regenerated. Then, the circulation feed pipe (8) is sent to the wiping tank (3) by the circulation feed pump (21). If the bottom plate (13) of the circulation tank (11) is changed from a so-called blind plate without holes to a punching plate with a very small number of holes, the punching plate performs the filtering action, and the lower part of the partition plate (12). Accordingly, the cleaning liquid (4) is sent to the second tank (10). If the cleaning effect is not improved even after the cleaning liquid (4) is regenerated, collect the cleaning liquid (4) in the circulation tank (11) and use the waste liquid treatment pump (22) to the waste liquid treatment plant outside the layer. Transport.
[0006]
【Example】
FIG. 1 shows a wiping liquid circulating apparatus (A) according to the present invention. The structure of the wiping liquid circulating apparatus (A) is as follows. The ink adhering to the surface of the wiping roller (2) is washed with the washing unit (5) immersed in the washing liquid (4). Here, since the ink wiped off by the cleaning unit (5) is dissolved in the cleaning liquid (4), the cleaning liquid (4) is gradually aged to reduce the cleaning effect. Therefore, the cleaning liquid (4) in the wiping tank (3) is supplied to the first tank (9) of the circulation tank (11) provided outside the wiping tank (3) by the circulation return pipe (7) and the circulation return pump (20). The ink in the washing liquid (4) is precipitated in the first tank (9). The circulation tank (11) is divided into two by a partition plate (12). Next, only the upper liquid (a) in the first tank (9) is allowed to flow into the second tank (10) over the partition plate (12).
[0007]
And when using UV curable ink, the ink dissolves in the cleaning liquid, and the pH value of the cleaning liquid itself is acidified, leading to a decrease in cleaning effect. Therefore, in this second tank (10), the ink is removed. In order to measure the pH value of the cleaning liquid (4) with a PH meter (16) and manage the value to an arbitrarily set value, caustic soda was injected from the replenishing tank (14), and the agitator (17) Stir the cleaning solution (4). About the injection quantity of caustic soda, the solenoid valve (15) opens and closes in conjunction with the PH meter (16). In addition, for temperature control, [a plurality of as required] electric heaters (18) provided in the second tank (10) and cold water passing through the cold water circulation pipe (19) are always kept at arbitrarily set values, After the cleaning liquid (4) is regenerated by these, it is sent to the wiping tank (3) by the circulation feed pipe (8) and the circulation feed pump (21). In addition, if the bottom plate (13) of the circulation tank (11) is changed from a so-called blind plate without holes to a plate with very small and numerous holes, the plate performs a filtering action, and from the lower part of the partition plate (12) The cleaning liquid (4) is sent to the second tank (10). If the cleaning effect cannot be improved even after regenerating the cleaning liquid (4), collect the entire cleaning liquid (4) in the circulation tank (11), and use the waste liquid processing pump (22) to go to the waste liquid treatment site outside the layer. And transfer the waste liquid.
[0008]
【The invention's effect】
According to the present invention, the replacement frequency of the wiping cleaning liquid can be reduced and its efficient use can be achieved, and the cost of industrial waste treatment with the waste liquid of the wiping liquid can be reduced. In particular, when UV curable ink is used, the pH value of the cleaning liquid is automatically controlled to prevent the ink from dissolving in the cleaning liquid and acidifying the pH value of the cleaning liquid itself, resulting in a decrease in cleaning effect. Since it can be performed, the work efficiency and the load on the worker can be reduced. Also, keeping the cleaning solution in a constant state stabilizes the quality of the printed matter, and keeping the cleaning solution temperature constant reduces the replacement frequency of the wiping roller, which also contributes to work efficiency. is there.
[Brief description of the drawings]
FIG. 1 is a diagram showing a wiping liquid circulating apparatus of an intaglio printing press according to the present invention.
[Explanation of symbols]
(1) Intaglio cylinder
(2) Wiping roller
(3) Wiping tank
(4) Cleaning solution
(5) Cleaning unit
(6) Liquid level sensor
(7) Circulation return piping
(8) Circulation feed piping
(9) First tank
(10) Second tank
(11) Circulation tank
(12) Partition plate
(13) Bottom plate
(14) Replenishment tank
(15) Solenoid valve
(16) PH meter
(17) Stirrer
(18) Heater
(19) Cold water circulation tank
(20) Circulation return pump
(21) Circulation pump
(22) Waste liquid treatment pump
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16670997A JP3796547B2 (en) | 1997-06-10 | 1997-06-10 | Wiping liquid circulation device for intaglio printing press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16670997A JP3796547B2 (en) | 1997-06-10 | 1997-06-10 | Wiping liquid circulation device for intaglio printing press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10337855A JPH10337855A (en) | 1998-12-22 |
| JP3796547B2 true JP3796547B2 (en) | 2006-07-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16670997A Expired - Fee Related JP3796547B2 (en) | 1997-06-10 | 1997-06-10 | Wiping liquid circulation device for intaglio printing press |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3796547B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001270082A (en) * | 2000-03-24 | 2001-10-02 | Koyo Electronics Ind Co Ltd | Ph value control method for printing ink and device therefor |
| KR100677856B1 (en) * | 2005-07-13 | 2007-02-05 | 조병우 | Method and equipment for endowment and maintenance of printability of offset printing |
| JP5093496B2 (en) * | 2008-06-27 | 2012-12-12 | 独立行政法人 国立印刷局 | Wiping roller and wiping device using the wiping roller |
| EP2559555B1 (en) | 2011-08-15 | 2016-09-07 | Komori Corporation | Wiping device |
| JP6186579B2 (en) * | 2013-08-22 | 2017-08-30 | 独立行政法人 国立印刷局 | Foam stabilization mechanism and liquid management device in wiping device |
| CN103625108B (en) * | 2013-12-12 | 2015-04-08 | 黄山金菱新材料有限公司 | Circulatory ink supply system of printing ink photogravure press |
| JP2016022630A (en) * | 2014-07-18 | 2016-02-08 | 株式会社小森コーポレーション | Wiping device for intaglio printing machine |
| CN106994818A (en) * | 2017-03-22 | 2017-08-01 | 山东东宇鸿翔装饰材料有限公司 | The multi-functional ink tank device of intaglio printing |
-
1997
- 1997-06-10 JP JP16670997A patent/JP3796547B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10337855A (en) | 1998-12-22 |
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