JPH0346906Y2 - - Google Patents
Info
- Publication number
- JPH0346906Y2 JPH0346906Y2 JP16213184U JP16213184U JPH0346906Y2 JP H0346906 Y2 JPH0346906 Y2 JP H0346906Y2 JP 16213184 U JP16213184 U JP 16213184U JP 16213184 U JP16213184 U JP 16213184U JP H0346906 Y2 JPH0346906 Y2 JP H0346906Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- doctor
- circumferential surface
- contact
- sides
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 238000007639 printing Methods 0.000 description 6
- 238000007646 gravure printing Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Rotary Presses (AREA)
Description
【考案の詳細な説明】
（技術分野）
本考案は、グラビア印刷機用ドクター装置の改
良に関する。[Detailed Description of the Invention] (Technical Field) The present invention relates to an improvement of a doctor device for a gravure printing machine.
一般に、グラビア印刷に使用するドクター装置
は、第３図、グラビア版シリンダー１表面にドク
ター２刃先を所定角度にて摺接させ、ドクター刃
先をシリンダー１の軸方向に揺動させるものであ
るが、長時間印刷を続けると、シリンダー１の両
側エツジに接する刃先が揺動により摩滅して、こ
の刃先の左右両側と、シリンダー１周面との間に
間隙ａが生じ、回転するシリンダー１周面に付着
するインキは、掻き取られずにシリンダー１に付
着したまま送られてしまつたり、間隙ａよりシリ
ンダー１回転方向にインキのハネ上りが発生し易
くなつて、版シリンダー１周面に接して印刷され
る印刷用紙などを汚損したりして、印刷に支障を
きたす。 In general, a doctor device used for gravure printing, as shown in FIG. 3, has a doctor blade 2 slidingly contact the surface of a gravure plate cylinder 1 at a predetermined angle, and swings the doctor blade in the axial direction of the cylinder 1. If printing continues for a long time, the cutting edge in contact with both edges of the cylinder 1 will wear out due to swinging, and a gap a will be created between the left and right sides of this cutting edge and the circumferential surface of the cylinder 1, causing damage to the rotating cylinder 1 circumferential surface. The adhering ink may not be scraped off and may be sent while adhering to the cylinder 1, or the ink may easily splatter in the direction of the rotation of the cylinder from the gap a, causing printing to come into contact with the circumferential surface of the plate cylinder 1. This may stain the printed paper, etc., and cause problems with printing.
（目的）
本考案は、グラビア印刷機、ドクター装置のド
クター下側のシリンダー巾方向両側にブラシなど
柔軟部材を取付けることにより、上記現象の発生
するのを防止することを目的とするものである。(Purpose) The purpose of the present invention is to prevent the above-mentioned phenomenon from occurring by attaching flexible members such as brushes to both sides of the cylinder width direction below the doctor of a gravure printing machine and a doctor device.
（構成）
第１図、グラビア版シリンダー１周面に当接し
て付着するインキを掻き取るドクター２のシリン
ダー１巾方向両側に、前記ドクター２の、揺動に
よりシリンダー１側縁に接する部分に相対し、か
つ、ドクター２からみてシリンダー１回転方向後
ろ側の位置に、シリンダー１周面に相対してブラ
シなど柔軟部材３を取付けてなるドクター装置で
ある。(Structure) Fig. 1. The doctor 2 that comes into contact with the circumferential surface of the gravure plate cylinder 1 to scrape off ink adhering to it is placed on both sides in the width direction of the cylinder 1, relative to the part of the doctor 2 that comes into contact with the side edge of the cylinder 1 by swinging. This doctor device also has a flexible member 3 such as a brush attached to the circumferential surface of the cylinder 1 at a position on the rear side in the rotational direction of the cylinder 1 when viewed from the doctor 2.
本考案装置を一実施例により詳細に説明すれ
ば、版シリンダー１周面に所定角度Ｒで当接する
ドクター２を支持板５にその表裏両側を挾み付け
て固定する。支持板５上側にＬ字型の取付金具４
により、シリンダー１の軸方向両側の該シリンダ
ー周面及びエツジ部分を被覆するように柔軟部材
としてブラシ３を取付け、ブラシ３は、その毛先
をシリンダー１周面に接するように、あるいは、
近接するように相対して取付ける。 To explain the device of the present invention in detail with reference to one embodiment, a doctor blade 2 which contacts the peripheral surface of a plate cylinder 1 at a predetermined angle R is fixed to a support plate 5 by sandwiching both its front and back sides. L-shaped mounting bracket 4 on the upper side of the support plate 5
Accordingly, the brush 3 is attached as a flexible member so as to cover the circumferential surface and edge portions of the cylinder on both sides in the axial direction of the cylinder 1, and the brush 3 has its bristles in contact with the circumferential surface of the cylinder 1, or
Install them close to each other.
第２図は、本考案装置の平面図であり、支持板
５の刃先側長手方向両側２個所に取付金具４を介
してブラシ３を取付ける。柔軟部材は、スポン
ジ、ラバーなどであつてもよい。 FIG. 2 is a plan view of the device according to the present invention, in which the brush 3 is attached to the support plate 5 at two locations on both sides of the blade edge side in the longitudinal direction via attachment fittings 4. The flexible member may be sponge, rubber, or the like.
（作用）
本考案装置のドクター２をその刃先延長方向が
版シリンダー１の中心上側を通るような例えば角
度55゜にて、版シリンダー１周面に当接させたと
き、ブラシ３の毛先は、シリンダー１側に向けら
れている。版シリンダー１の周面に付着するイン
キは回転方向に送られ、ドクター２の揺動により
発生する間隙ａの直後に、回転方向にハネ上るイ
ンキを遮断することができる。(Function) When the doctor 2 of the device of the present invention is brought into contact with the circumferential surface of the plate cylinder 1 at an angle of, for example, 55 degrees so that the extension direction of the cutting edge passes above the center of the plate cylinder 1, the bristles of the brush 3 are , is directed toward the cylinder 1 side. The ink adhering to the circumferential surface of the plate cylinder 1 is sent in the rotational direction, and the ink splashing up in the rotational direction can be blocked immediately after the gap a generated by the swinging of the doctor 2.
（効果）
本考案ドクター装置によれば、印刷中にインキ
の付着する版シリンダーの回転によつて、長時間
印刷を続けた場合にドクター両側に生ずる摩滅間
隙による、インキのハネ上がりを受け止めること
により、印刷物の汚れを防止することができ、ま
たドクターの使用有効期間を延ばすことも可能で
あり、グラビア印刷品質と収率向上及び高速印刷
適正の向上などに実用的価値のあるものである。(Effects) According to the doctor device of the present invention, the rotation of the plate cylinder on which ink adheres during printing prevents ink splashing due to the abrasion gap that occurs on both sides of the doctor when printing continues for a long time. , it is possible to prevent stains on printed matter, and it is also possible to extend the effective period of use of the doctor, and it has practical value in improving gravure printing quality and yield, and improving high-speed printing suitability.
第１図は、本考案装置の側面図、第２図は、本
考案装置の平面図、第３図は、従来装置の斜視
図、である。
１……グラビア版シリンダー、２……ドクタ
ー、３……柔軟部材、４……取付金具、５……支
持板。
FIG. 1 is a side view of the device of the present invention, FIG. 2 is a plan view of the device of the present invention, and FIG. 3 is a perspective view of the conventional device. DESCRIPTION OF SYMBOLS 1... Gravure cylinder, 2... Doctor, 3... Flexible member, 4... Mounting bracket, 5... Support plate.
Claims (1)
るインキを掻き取るドクター２のシリンダー１巾
方向両側に、前記ドクター２の、揺動によりシリ
ンダー１側縁に接する部分に相対し、かつ、ドク
ター２からみてシリンダー１回転方向後ろ側の位
置に、シリンダー１周面に相対してブラシなど柔
軟部材３を取付けてなるドクター装置。 On both sides of the cylinder 1 width direction of the doctor 2 which scrapes off ink adhering to the circumferential surface of the gravure plate cylinder 1, there is a part of the doctor 2 which faces the part of the doctor 2 that comes into contact with the side edge of the cylinder 1 by swinging, and which is away from the doctor 2. The doctor device has a flexible member 3 such as a brush attached to the rear side in the direction of rotation of the cylinder and facing the circumferential surface of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16213184U JPH0346906Y2 (en) | 1984-10-26 | 1984-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16213184U JPH0346906Y2 (en) | 1984-10-26 | 1984-10-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6177245U JPS6177245U (en) | 1986-05-23 |
| JPH0346906Y2 true JPH0346906Y2 (en) | 1991-10-04 |
Family
ID=30720020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16213184U Expired JPH0346906Y2 (en) | 1984-10-26 | 1984-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0346906Y2 (en) |
-
1984
- 1984-10-26 JP JP16213184U patent/JPH0346906Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6177245U (en) | 1986-05-23 |
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