JP2535531Y2 - Printer - Google Patents
PrinterInfo
- Publication number
- JP2535531Y2 JP2535531Y2 JP1988138603U JP13860388U JP2535531Y2 JP 2535531 Y2 JP2535531 Y2 JP 2535531Y2 JP 1988138603 U JP1988138603 U JP 1988138603U JP 13860388 U JP13860388 U JP 13860388U JP 2535531 Y2 JP2535531 Y2 JP 2535531Y2
- Authority
- JP
- Japan
- Prior art keywords
- roller
- ink
- plate cylinder
- contact
- inking
- 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 - Lifetime
Links
Landscapes
- Rotary Presses (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Description
【考案の詳細な説明】 (産業上の利用分野) 本考案は、同一絵柄の2枚の版を版胴の周方向180°
位置毎にそれぞれの絵柄が版胴の回転軸対称になるよう
に取付けた印刷機に関するものである。[Detailed description of the invention] (Industrial application field) The invention uses two plates with the same pattern in the circumferential direction of the plate cylinder at 180 °.
The present invention relates to a printing press mounted such that each pattern is symmetrical with respect to the rotational axis of a plate cylinder at each position.
(従来の技術) 従来の前記印刷機を第2図により説明すると,(01)
がインキポンプ,(02)が吐出管,(03)がインキレー
ル,(04)がインキ元ローラ,(05)がインキ往復ロー
ラ,(06)(07)がインキ着ローラ,(011)が水槽,
(012)が水元ローラ,(013)が水往復ローラ,(01
4)が水着ローラ,(015)が湿し装置,(020)が版胴
で,同版胴(020)には,同一絵柄の2枚の版を周方向1
80°位置毎にそれぞれの絵柄が版胴(020)の回転軸対
称になるように取付けている。(021)がブランケツト
胴,(022)が印刷紙である。(Prior Art) The conventional printing press will be described with reference to FIG.
Is the ink pump, (02) is the discharge pipe, (03) is the ink rail, (04) is the ink source roller, (05) is the ink reciprocating roller, (06) and (07) are the ink applying rollers, and (011) is the water tank. ,
(012) is a water source roller, (013) is a water reciprocating roller, (013)
4) is a swimsuit roller, (015) is a dampening device, (020) is a plate cylinder, and the same plate cylinder (020) is provided with two plates of the same pattern in the circumferential direction.
Each picture is mounted so that each picture is symmetrical with respect to the rotation axis of the plate cylinder (020) at every 80 ° position. (021) is a blanket cylinder, and (022) is a printing paper.
前記印刷機では,水槽(011)内の湿し水が水元ロー
ラ(012)と水往復ローラ(013)と水着ローラ(014)
とを経て版胴(020)の表面に取付けた版へ供給され
て,版の非画線部に付着する一方,インキがインキポン
プ(01)から吐出管(02)を経てインキレール(03)へ
圧送され,次いでインキ元ローラ(04)へ供給されて,
同インキ元ローラ(04)に付着し,次いでインキ往復ロ
ーラ(05)とインキ着ローラ(06)(07)とを経て版胴
(020)の表面に取付けた版(図示せず)へ供給され,
版の画線部に付着して,絵柄が形成され,次いでブラン
ケツト胴(021)を経て印刷紙(022)へ転写される。In the printing press, the dampening water in the water tank (011) is supplied by a water source roller (012), a water reciprocating roller (013), and a swimsuit roller (014).
The ink is supplied to the plate attached to the surface of the plate cylinder (020) through the steps (1) and (2), and adheres to the non-image area of the plate, while ink is supplied from the ink pump (01) through the discharge pipe (02) through the ink rail (03). To the ink source roller (04)
The ink adheres to the ink source roller (04) and is then supplied to a plate (not shown) mounted on the surface of the plate cylinder (020) via the ink reciprocating roller (05) and the ink applying rollers (06) (07). ,
The pattern adheres to the image portion of the plate, forms a pattern, and is then transferred to the printing paper (022) via the blanket cylinder (021).
(考案が解決しようとする課題) 前記第2図に示す従来の印刷機では,同一絵柄の2枚
の版を版胴(020)の周方向180°位置毎にそれぞれの絵
柄が版胴(020)の回転軸対称になるように取付けてい
る。一方,インキ着ローラ(06)(07)及び水着ローラ
(014)が版胴(020)の版にニツプ圧負荷状態で接触し
て,共回りしている。(Problem to be Solved by the Invention) In the conventional printing press shown in FIG. 2, two plates having the same pattern are printed at each position of 180 ° in the circumferential direction of the plate cylinder (020). ) Is mounted so that it is symmetric with respect to the rotation axis. On the other hand, the ink application rollers (06) and (07) and the swimsuit roller (014) are in contact with the plate of the plate cylinder (020) under a nip pressure load, and are rotating together.
その際,インキ着ローラ(06)(07)の表面のうち,
版の画線部に対応する表面のインキ膜厚は,インキが消
費されるために相対的に薄くなり,版の非画線部に対応
する表面のインキ膜厚は,インキが消費されないために
相対的に厚くなる。At this time, of the surfaces of the ink application rollers (06) and (07),
The ink film thickness on the surface corresponding to the printing area of the plate becomes relatively thin due to the consumption of ink, and the ink film thickness on the surface corresponding to the non-printing area of the printing plate decreases because the ink is not consumed. Relatively thick.
この点は,水着ローラ(014)も同様である。即ち,
水着ローラ(014)の表面のうち,版の非画線部に対応
する表面の水膜厚は,湿し水が消費されるために相対的
に薄くなり,版の画線部に対応する表面の水膜厚は,湿
し水が消費されないために相対的に厚くなる。This is the same for the swimsuit roller (014). That is,
Of the surface of the swimsuit roller (014), the water film thickness of the surface corresponding to the non-image portion of the plate becomes relatively thin due to consumption of dampening water, and the surface corresponding to the image portion of the plate. Is relatively thick because no fountain solution is consumed.
ところがインキ着ローラ(06)(07)及び水着ローラ
(014)の直径を次の直径,即ち,版胴(020)にニツプ
圧負荷状態で接触し1回転するときの転動長さが版胴
(020)の周長の略1/2になる直径にしないので,インキ
着ローラ(06)(07)及び水着ローラ(014)と版との
相対位置が回転とともに周方向にずれて,版の画線部に
接触したインキ着ローラ(06)(07)の部分が次に回転
移動してくる版の画線部に接触しなくなり,また版の非
画線部に接触した水着ローラ(014)の部分が次に回転
移動してくる版の非画線部に接触しなくなり,版上のイ
ンキ膜厚及び水膜厚が不均一になって,印刷紙(022)
にゴーストと称する印刷障害(濃度差)が発生するとい
う問題があった。However, the diameters of the ink application rollers (06) and (07) and the swimsuit roller (014) are set to the following diameters. (020), the relative position between the inking rollers (06) and (07) and the swimsuit roller (014) and the plate shifts in the circumferential direction with rotation, and The part of the inking rollers (06) and (07) that have come into contact with the image area no longer contacts the image area of the next rotating plate, and the swimsuit roller (014) that has contacted the non-image area of the plate Is no longer in contact with the non-image area of the next rotating plate, the ink film thickness and water film thickness on the plate become uneven, and the printing paper (022)
However, there is a problem that a printing failure (density difference) called a ghost occurs.
本考案は前記の問題点に鑑み提案するものであり,そ
の目的とする処は,ゴーストと称する印刷障害(濃度
差)を生じさせない上に,インキ往復ローラに基づく絵
柄のズレを生じさせない印刷機を提供しようとする点に
ある。The present invention has been made in view of the above-mentioned problems, and has as its object to provide a printing machine which does not cause a printing failure (density difference) called a ghost and also does not cause a displacement of a pattern based on an ink reciprocating roller. The point is to provide.
(課題を解決するための手段) 上記の目的を達成するために,本考案は,同一絵柄の
2枚の版を版胴(20)の周方向180°位置毎にそれぞれ
の絵柄が版胴(20)の回転軸対称になるように取付けた
印刷機において,版胴(20)に接触して版胴(20)とは
反対の方向に回転する2本のインキ着ローラ(6)
(7)と,同各インキ着ローラ(6)(7)に接触して
同各インキ着ローラ(6)(7)とは反対の方向に回転
する1本のインキ往復ローラ(5)とを有し,同各イン
キ着ローラ(6)(7)の直径及び同インキ往復ローラ
(5)の直径を,それぞれニツプ圧で接触して1回転す
るときの転動長さが版胴(20)の全周長の略1/2になる
直径にし,各インキ着ローラ(6)(7)の中心と版胴
(20)の中心とを結ぶ角度(θ)を、〔インキ着ローラ
(7)及びインキ往復ローラ(5)の接点(A)からイ
ンキ着ローラ(7)及び版胴(20)の接点(B)までの
インキ着ローラ(7)の回転方向の周長(AB)〕=
〔(インキ着ローラ(7)及びインキ往復ローラ(5)
の接点(A)からインキ着ローラ(6)及びインキ往復
ローラ(5)の接点(C)までのインキ往復ローラ
(5)の回転方向の周長(AC)+インキ着ローラ(6)
及びインキ往復ローラ(5)の接点(C)からインキ着
ローラ(6)及び版胴(20)の接点(D)までのインキ
着ローラ(6)の回転方向の周長(CD)+インキ着ロー
ラ(6)及び版胴(20)の接点(D)からインキ着ロー
ラ(7)及び版胴(20)の接点(B)までの版胴(20)
の回転方向の周長(DB))−(版胴(20)の全周長の1/
2)〕の値と同一になる角度にしている。(請求項
1)。(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides two plates having the same pattern at each 180 ° circumferential position of the plate cylinder (20). (2) two inking rollers (6) rotating in the opposite direction to the plate cylinder (20) in contact with the plate cylinder (20) in the printing press mounted so as to be symmetrical with respect to the rotation axis of (20).
(7) and a single ink reciprocating roller (5) that contacts the respective inking rollers (6) and (7) and rotates in the opposite direction to the respective inking rollers (6) and (7). The rolling length when one rotation is performed by contacting the diameters of the ink applying rollers (6) and (7) and the diameter of the ink reciprocating roller (5) with the nip pressure, respectively, is the plate cylinder (20). And the angle (θ) connecting the center of each inking roller (6) (7) and the center of the plate cylinder (20) is [inking roller (7)]. And the circumferential length (AB) in the rotation direction of the inking roller (7) from the contact (A) of the ink reciprocating roller (5) to the contact (B) of the inking roller (7) and the plate cylinder (20)] =
[(Ink roller (7) and ink reciprocating roller (5)
Circumference (AC) in the rotational direction of the ink reciprocating roller (5) from the contact point (A) to the contact point (C) of the ink applying roller (6) and the ink reciprocating roller (5) + the ink applying roller (6)
And the circumference (CD) in the rotational direction of the inking roller (6) from the contact (C) of the ink reciprocating roller (5) to the contact (D) of the inking roller (6) and the plate cylinder (20) + inking. The plate cylinder (20) from the contact (D) of the roller (6) and the plate cylinder (20) to the contact (B) of the inking roller (7) and the plate cylinder (20).
Circumference in the rotation direction (DB)-(1/3 of the total circumference of the plate cylinder (20))
2)]. (Claim 1).
前記請求項1記載の印刷機において,版胴(20)に接
触して版胴(20)とは反対の方向に回転する1本の水着
ローラ(14)を有し,同水着ローラ(14)の直径を,版
胴(20)にニツプ圧負荷状態で接触して1回転するとき
の転動長さが版胴(20)の全周長の略1/2になる直径に
してもよい(請求項2)。2. The printing press according to claim 1, further comprising a swimsuit roller (14) rotating in a direction opposite to the print cylinder (20) in contact with the print cylinder (20). May be set to a diameter such that the rolling length of one rotation when the plate cylinder (20) makes one rotation while being in contact with the plate cylinder (20) under a nip pressure load is approximately half of the entire circumference of the plate cylinder (20) ( Claim 2).
前記請求項1記載の印刷機において,インキ着ローラ
(7)に接触してインキ着ローラ(7)とは反対の方向
に回転する1本のインキ着ないしローラ(9)と,イン
キ往復ローラ(5)に接触してインキ往復ローラ(5)
とは反対の方向に回転する1本のインキ往復ならしロー
ラ(8)とを有し,同インキ着ならしローラ(9)及び
同インキ往復ならしローラ(8)の直径を,インキ着ロ
ーラ(7)及びインキ往復ローラ(5)にニツプ圧負荷
状態で接触して1回転するときの転動長さが版胴(20)
の全周長の略1/2になる直径にしてもよい(請求項
3)。2. A printing press according to claim 1, wherein one of the inking rollers (9) which contacts the inking roller (7) and rotates in a direction opposite to the inking roller (7); 5) Ink reciprocating roller in contact with (5)
A single ink reciprocating leveling roller (8) rotating in a direction opposite to that of the ink replenishing roller (9). (7) and the ink reciprocating roller (5) is contacted with a nip pressure load, and the rolling length during one rotation is the plate cylinder (20).
The diameter may be approximately 1/2 of the entire circumference of the first embodiment (claim 3).
(作用) (i)同一絵柄の2枚の版を版胴(20)の周方向180°
位置毎にそれぞれの絵柄が版胴(20)の回転軸対称とな
るように取付けた印刷機において,版胴(20)に接触し
て回転する2本のインキ着ローラ(6)(7)及び1本
の水着ローラ(14)の1回転の転動長さを版胴(20)の
周長の略1/2にしており,インキ着ローラ(6)(7)
の画線部に接する部分が上記各版の版面の画線部に常に
接し,水着ローラ(14)の非画線部に接する部分が上記
各版の版面の非画線部に常に接し,インキ着ローラ
(6)(7)の全ての画線部に接する部分で常に一定量
のインキが消費され,インキ着ローラ(6)(7)のイ
ンキ膜厚が同一膜厚になり,上記各版の版面の画線部上
のインキ膜厚も同一膜厚になり,印刷紙上のインキ付着
部の膜厚も一定になって,印刷紙(22)にゴーストと称
する印刷障害(濃度差)が生じない。(Function) (i) Two plates of the same pattern are rotated 180 ° in the circumferential direction of the plate cylinder (20).
Two inking rollers (6) and (7) rotating in contact with the plate cylinder (20) in a printing press in which each pattern is mounted so that each pattern is symmetric with respect to the rotation axis of the plate cylinder (20). The rolling length of one swim roller (14) per rotation is set to approximately half the circumference of the plate cylinder (20), and the ink forming rollers (6) (7)
The part in contact with the image portion of the plate always contacts the image portion of the plate surface of each plate, the portion of the swimsuit roller (14) that contacts the non-image portion of the plate always contacts the non-image portion of the plate surface of each plate, and the ink A fixed amount of ink is always consumed in a portion of the image forming rollers (6) and (7) in contact with all the image portions, and the ink film thickness of the ink forming rollers (6) and (7) becomes the same. The film thickness of the ink on the image area of the plate becomes the same, and the film thickness of the ink-adhered part on the printing paper also becomes constant, causing printing failure (density difference) called ghost on the printing paper (22). Absent.
(ii)また2本のインキ着ローラ(6)(7)に接触し
て回転する1本のインキ往復ローラ(5)については,1
回転の転動長さを2本のインキ着ローラ(6)(7)と
同様に版胴(20)の周長の略1/2にしている。しかも各
インキ着ローラ(6)(7)の中心と版胴(20)の中心
とを結ぶ角度(θ)を,〔インキ着ローラ(7)及びイ
ンキ往復ローラ(5)の接点(A)からインキ着ローラ
(7)及び版胴(20)の接点(B)までのインキ着ロー
ラ(7)の回転方向の周長(AB)〕=〔(インキ着ロー
ラ(7)及びインキ往復ローラ(5)の接点(A)から
インキ着ローラ(6)及びインキ往復ローラ(5)の接
点(C)までのインキ往復ローラ(5)の回転方向の周
長(AC)+インキ着ローラ(6)及びインキ往復ローラ
(5)の接点(C)からインキ着ローラ(6)及び版胴
(20)の接点(D)までのインキ着ローラ(6)の回転
方向の周長(CD)+インキ着ローラ(6)及び版胴(2
0)の接点(D)からインキ着ローラ(7)及び版胴(2
0)の接点(B)までの版胴(20)の回転方向の周長(D
B))−(版胴(20)の全周長の1/2)〕の値と同一にな
る角度にしており,インキ往復ローラ(5)の一点が版
胴(20)上の同一絵柄の2枚の版の同一点に対して共有
化されて,インキ往復ローラ(5)に基づく絵柄のズレ
が生じない。(Ii) For one ink reciprocating roller (5) rotating in contact with the two ink applying rollers (6) and (7), 1
The rolling length of the rotation is set to approximately 1/2 of the circumference of the plate cylinder (20), similarly to the two ink applying rollers (6) and (7). In addition, the angle (θ) connecting the center of each of the inking rollers (6) and (7) with the center of the plate cylinder (20) is defined as [from the contact point (A) of the inking roller (7) and the ink reciprocating roller (5)]. Circumferential length (AB) in the rotation direction of the ink application roller (7) up to the contact point (B) of the ink application roller (7) and the plate cylinder (20)] = [(ink application roller (7) and ink reciprocating roller (5) ) From the contact (A) to the contact (C) of the inking roller (6) and the ink reciprocating roller (5) in the rotational direction of the ink reciprocating roller (5) (AC) + the inking roller (6) and Circumferential length (CD) in the rotating direction of the inking roller (6) from the contact (C) of the ink reciprocating roller (5) to the inking roller (6) and the contact (D) of the plate cylinder (20) + the inking roller (6) and plate cylinder (2
0) from the contact (D) to the inking roller (7) and the plate cylinder (2).
0), the circumferential length (D) of the plate cylinder (20) in the rotational direction up to the contact (B).
B))-(1/2 of the total circumference of the plate cylinder (20))], and one point of the ink reciprocating roller (5) has the same pattern on the plate cylinder (20). Since the same point of the two plates is shared, no displacement of the picture based on the ink reciprocating roller (5) occurs.
その際,インキ着ローラ(7)に接触してインキ着ロ
ーラ(7)とは反対の方向に回転する1本のインキ着な
らしローラ(9)と,インキ往復ローラ(5)に接触し
てインキ往復ローラ(5)とは反対の方向に回転する1
本のインキ往復ならしローラ(8)については,それぞ
れが単独でインキ着ローラ(7)及びインキ往復ローラ
(5)に接触して回転しているだけであり,1回転の転動
長さを版胴(20)の周長の略1/2にするだけでよい。At this time, the ink contact roller (7) is rotated in a direction opposite to the ink applying roller (7), and is contacted with a single ink applying roller (9) and the ink reciprocating roller (5). 1 rotates in the opposite direction to the ink reciprocating roller (5)
As for the ink reciprocating leveling roller (8), each of them only rotates in contact with the ink applying roller (7) and the ink reciprocating roller (5). It only needs to be approximately half the circumference of the plate cylinder (20).
(実施例) 次に本考案の印刷機を第1図に示す一実施例により説
明すると,(1)がインキポンプ,(2)が吐出管,
(3)がインキレール,(4)がインキ元ローラ,
(5)がインキ往復ローラ,(6)(7)がインキ着ロ
ーラ,(8)がインキ往復ならしローラ,(9)がイン
キ着ならしローラ,(11)が水槽,(12)が水元ロー
ラ,(13)が水往復ローラ,(14)が水着ローラ,(1
5)が湿し装置,(20)が版胴で,同版胴(20)には,
同一絵柄の2枚の版が周方向180°位置毎にそれぞれの
絵柄が版胴(20)の回転軸対称になるように取付けられ
ている。(Embodiment) Next, the printing machine of the present invention will be described with reference to an embodiment shown in Fig. 1. (1) is an ink pump, (2) is a discharge pipe,
(3) is the ink rail, (4) is the ink source roller,
(5) is an ink reciprocating roller, (6) and (7) are inking rollers, (8) is an ink reciprocating roller, (9) is an inking roller, (11) is a water tank, and (12) is water. Original roller, (13) water reciprocating roller, (14) swimsuit roller, (1
5) is a dampening device, (20) is a plate cylinder, and the plate cylinder (20) has
Two plates of the same pattern are mounted at every 180 ° position in the circumferential direction so that the respective patterns are symmetric with respect to the rotation axis of the plate cylinder (20).
(21)がブランケツト胴,(22)が印刷紙で,各イン
キ着ローラ(6)(7)及びインキ往復ローラ(5)の
直径を版胴(20)にニツプ圧負荷状態で接触して1回転
するときの転動長さが版胴(20)の周長の略1/2になる
直径にしている。(21) is a blanket cylinder, (22) is a printing paper, and the diameter of each of the ink applying rollers (6) (7) and the ink reciprocating roller (5) is brought into contact with the plate cylinder (20) under a nip pressure load. The diameter is such that the rolling length when rotating is approximately half the circumference of the plate cylinder (20).
そして各インキ着ローラ(6)(7)の中心と版胴
(20)の中心とを結ぶ角度(θ)を,〔インキ着ローラ
(7)及びインキ往復ローラ(5)の接点(A)からイ
ンキ着ローラ(7)及び版胴(20)の接点(B)までの
インキ着ローラ(7)の回転方向の周長(AB)〕=
〔(インキ着ローラ(7)及びインキ往復ローラ(5)
の接点(A)からインキ着ローラ(6)及びインキ往復
ローラ(5)の接点(C)までのインキ往復ローラ
(5)の回転方向の周長(AC)+インキ着ローラ(6)
及びインキ往復ローラ(5)の接点(C)からインキ着
ローラ(6)及び版胴(20)の接点(D)までのインキ
着ローラ(6)の回転方向の周長(CD)+インキ着ロー
ラ(6)及び版胴(20)の接点(D)からインキ着ロー
ラ(7)及び版胴(20)の接点(B)までの版胴(20)
の回転方向の周長(DB))−版胴(20)の全周長の1/
2)〕の値と同一になる角度にしている。Then, the angle (θ) connecting the center of each of the inking rollers (6) and (7) with the center of the plate cylinder (20) is determined by [from the contact point (A) of the inking roller (7) and the ink reciprocating roller (5). Perimeter (AB) in the rotation direction of the ink applying roller (7) up to the contact point (B) of the ink applying roller (7) and the plate cylinder (20)] =
[(Ink roller (7) and ink reciprocating roller (5)
Circumference (AC) in the rotational direction of the ink reciprocating roller (5) from the contact point (A) to the contact point (C) of the ink applying roller (6) and the ink reciprocating roller (5) + the ink applying roller (6)
And the circumference (CD) in the rotational direction of the inking roller (6) from the contact (C) of the ink reciprocating roller (5) to the contact (D) of the inking roller (6) and the plate cylinder (20) + inking. The plate cylinder (20) from the contact (D) of the roller (6) and the plate cylinder (20) to the contact (B) of the inking roller (7) and the plate cylinder (20).
Circumference in the rotation direction (DB))-1 / of the total circumference of the plate cylinder (20)
2)].
またインキ着ローラ(7)に接触してインキ着ローラ
(7)とは反対の方向に回転するインキ着ならしローラ
(9)及びインキ往復ローラ(5)に接触してインキ往
復ローラ(5)とは反対の方向に回転するインキ往復な
らしローラ(8)の直径を,インキ着ローラ(7)及び
インキ往復ローラ(5)にニツプ圧負荷状態で接触して
1回転するときの転動長さが版胴(20)の周長の略1/2
になる直径にしている。Also, the ink reciprocating roller (5) contacts the ink replenishing roller (5) and the ink replenishing roller (9) and the ink reciprocating roller (5), which rotates in the opposite direction to the inking roller (7). The diameter of the ink reciprocating smoothing roller (8), which rotates in the opposite direction to that of the ink reciprocating roller (5), is contacted with the ink applying roller (7) and the ink reciprocating roller (5) under a nip pressure load, and the rolling length when one rotation is made. Saga is approximately 1/2 the circumference of the plate cylinder (20)
Diameter.
前記第1図に示す印刷機の作用は既に述べた通りであ
る。即ち, (i)同一絵柄の2枚の版を版胴(20)の周方向180°
位置毎にそれぞれの絵柄が版胴(20)の回転軸対称とな
るように取付けた印刷機において,版胴(20)に接触し
て版胴(20)とは反対の方向に回転する2本のインキ着
ローラ(6)(7)及び1本の水着ローラ(14)の1回
転の転動長さを版胴(20)の周長の略1/2にしており,
インキ着ローラ(6)(7)の画線部に接する部分が上
記各版の版面の画線部に常に接し,水着ローラ(14)の
非画線部に接する部分が上記各版の版面の非画線部に常
に接し,インキ着ローラ(6)(7)の全ての画線部に
接する部分で常に一定量のインキが消費され,インキ着
ローラ(6)(7)のインキ膜厚が同一膜厚になって,
上記各版の版面の画線部上のインキ膜厚も同一膜厚にな
り,印刷紙上のインキ付着部の膜厚も一定になって,印
刷紙(22)にゴーストと称する印刷障害(濃度差)が生
じない。The operation of the printing press shown in FIG. 1 is as described above. That is, (i) two plates having the same pattern are rotated 180 ° in the circumferential direction of the plate cylinder (20).
In a printing press mounted so that each pattern is symmetrical with respect to the rotational axis of the plate cylinder (20) at each position, two printing plates that contact the plate cylinder (20) and rotate in the opposite direction to the plate cylinder (20) The rolling length of one rotation of the ink applying rollers (6) and (7) and the one swimsuit roller (14) is set to approximately 1/2 of the circumference of the plate cylinder (20).
The portions of the inking rollers (6) and (7) that are in contact with the image portions are always in contact with the image portions of the plate of each plate, and the portions that are in contact with the non-image portions of the swimsuit roller (14) are the portions of the plate surface of each plate. A constant amount of ink is always consumed in the portions that are always in contact with the non-image portions and in contact with all the image portions of the ink application rollers (6) and (7), and the ink film thickness of the ink application rollers (6) and (7) is reduced. With the same thickness,
The ink film thickness on the image portion of the plate surface of each of the above-mentioned plates becomes the same film thickness, and the film thickness of the ink-attached portion on the printing paper becomes constant. ) Does not occur.
(ii)また2本のインキ着ローラ(6)(7)に接触し
てインキ着ローラ(6)(7)とは反対の方向に回転す
る1本のインキ往復ローラ(5)については,1回転の転
動長さを2本のインキ着ローラ(6)(7)と同様に版
胴(20)の周長の略1/2にしている。しかも各インキ着
ローラ(6)(7)の中心と版胴(20)の中心とを結ぶ
角度(θ)を,〔インキ着ローラ(7)及びインキ往復
ローラ(5)の接点(A)からインキ着ローラ(7)及
び版胴(20)の接点(B)までのインキ着ローラ(7)
の回転方向の周長(AB)〕=〔(インキ着ローラ(7)
及びインキ往復ローラ(5)の接点(A)からインキ着
ローラ(6)及びインキ往復ローラ(5)の接点(C)
までのインキ往復ローラ(5)の回転方向の周長(AC)
+インキ着ローラ(6)及びインキ往復ローラ(5)の
接点(C)からインキ着ローラ(6)及び版胴(20)の
接点(D)までのインキ着ローラ(6)の回転方向の周
長(CD)+インキ着ローラ(6)及び版胴(20)の接点
(D)からインキ着ローラ(7)及び版胴(20)の接点
(B)までの版胴(20)の回転方向の周長(DB))−
(版胴(20)の全周長の1/2)〕の値と同一になる角度
にしており,インキ往復ローラ(5)の一点が版胴(2
0)上の同一絵柄の2枚の版の同一点に対して共有化さ
れて,インキ往復ローラ(5)に基づく絵柄のズレが生
じない。(Ii) For one ink reciprocating roller (5) that contacts two ink forming rollers (6) and (7) and rotates in the opposite direction to the ink forming rollers (6) and (7), The rolling length of the rotation is set to approximately 1/2 of the circumference of the plate cylinder (20), similarly to the two ink applying rollers (6) and (7). In addition, the angle (θ) connecting the center of each of the inking rollers (6) and (7) with the center of the plate cylinder (20) is defined as [from the contact point (A) of the inking roller (7) and the ink reciprocating roller (5)]. Inking roller (7) and inking roller (7) up to contact point (B) of plate cylinder (20)
Circumference in the rotation direction of (AB)] = [(inking roller (7)
And the contact (A) of the ink reciprocating roller (5) to the contact (C) of the ink applying roller (6) and the ink reciprocating roller (5).
Circumference of the ink reciprocating roller (5) in the rotation direction up to (AC)
+ Circumference of the ink applying roller (6) in the rotational direction from the contact (C) of the ink applying roller (6) and the ink reciprocating roller (5) to the contact (D) of the ink applying roller (6) and the plate cylinder (20). Long (CD) + direction of rotation of the plate cylinder (20) from the contact (D) of the inking roller (6) and plate cylinder (20) to the contact (B) of the inking roller (7) and plate cylinder (20) Circumference (DB))-
(1/2 of the total circumference of the plate cylinder (20))], and one point of the ink reciprocating roller (5) is
0) The same point of the two plates having the same pattern is shared and the pattern is not shifted by the ink reciprocating roller (5).
その際,インキ着ローラ(7)に接触してインキ着ロ
ーラ(7)とは反対の方向に回転する1本のインキ着な
らしローラ(9)と,インキ往復ローラ(5)に接触し
てインキ往復ローラ(5)とは反対の方向に回転する1
本のインキ往復ならしローラ(8)については,それぞ
れが単独でインキ着ローラ(7)及びインキ往復ローラ
(5)に接触して回転しているだけであり,1回転の転動
長さを版胴(20)の周長の略1/2にするだけでよい。At this time, the ink contact roller (7) is rotated in a direction opposite to the ink applying roller (7), and is contacted with a single ink applying roller (9) and the ink reciprocating roller (5). 1 rotates in the opposite direction to the ink reciprocating roller (5)
As for the ink reciprocating leveling roller (8), each of them only rotates in contact with the ink applying roller (7) and the ink reciprocating roller (5). It only needs to be approximately half the circumference of the plate cylinder (20).
(考案の効果) (i)同一絵柄の2枚の版を版胴(20)の周方向180°
位置毎にそれぞれの絵柄が版胴(20)の回転軸対称にな
るように取付けた印刷機において,版胴(20)に接触し
て版胴(20)とは反対方向に回転する2本のインキ着ロ
ーラ(6)(7)及び1本の水着ローラ(14)の1回転
の転動長さを版胴(20)の周長の略1/2にしており,イ
ンキ着ローラ(6)(7)の画線部に接する部分が上記
各版の版面の画線部に常に接し,水着ローラ(14)の非
画線部に接する部分が上記各版の版面の非画線部に常に
接し,インキ着ローラ(6)(7)の全ての画線部に接
する部分で常に一定量のインキが消費され,インキ着ロ
ーラ(6)(7)のインキ膜厚が同一膜厚になり,上記
各版の版面の画線部上のインキ膜厚も同一膜厚になり,
印刷紙上のインキ付着部の膜厚も一定になって,印刷紙
(22)にゴーストと称する印刷障害(濃度差)を生じさ
せない。(Effect of the invention) (i) Two plates with the same pattern are 180 ° in the circumferential direction of the plate cylinder (20)
In a printing press mounted so that each pattern is symmetrical with respect to the rotational axis of the plate cylinder (20) at each position, two printing plates that contact the plate cylinder (20) and rotate in the opposite direction to the plate cylinder (20) The rolling length of one rotation of the inking rollers (6) and (7) and one swimsuit roller (14) is set to approximately 1/2 of the circumference of the plate cylinder (20). The part in contact with the image portion of (7) is always in contact with the image portion of the printing plate of each plate, and the portion in contact with the non-image portion of the swimsuit roller (14) is always in contact with the non-image portion of the printing plate of each plate. A certain amount of ink is always consumed in a portion where the ink contact rollers are in contact with all the image portions of the ink applying rollers (6) and (7), and the ink film thickness of the ink applying rollers (6) and (7) becomes the same. The ink film thickness on the image area of the plate surface of each of the above plates also becomes the same film thickness,
The film thickness of the ink-attached portion on the printing paper is also constant, so that printing trouble (density difference) called ghost does not occur on the printing paper (22).
(ii)また2本のインキ着ローラ(6)(7)に接触し
てインキ着ローラ(6)(7)とは反対の方向に回転す
る1本のインキ往復ローラ(5)については、1回転の
転動長さを2本のインキ着ローラ(6)(7)と同様に
版胴(20)の周長の略1/2にしている。しかも各インキ
着ローラ(6)(7)の中心と版胴(20)の中心とを結
ぶ角度(θ)を,〔インキ着ローラ(7)及びインキ往
復ローラ(5)の接点(A)からインキ着ローラ(7)
及び版胴(20)の接点(B)までのインキ着ローラ
(7)の回転方向の周長(AB)〕=〔(インキ着ローラ
(7)及びインキ往復ローラ(5)の接点(A)からイ
ンキ着ローラ(6)及びインキ往復ローラ(5)の接点
(C)までのインキ往復ローラ(5)の回転方向の周長
(AC)+インキ着ローラ(6)及びインキ往復ローラ
(5)の接点(C)からインキ着ローラ(6)及び版胴
(20)の接点(D)までのインキ着ローラ(6)の回転
方向の周長(CD)+インキ着ローラ(6)及び版胴(2
0)の接点(D)からインキ着ローラ(7)及び版胴(2
0)の接点(B)までの版胴(20)の回転方向の周長(D
B))−(版胴(20)の全周長の1/2)〕の値と同一にな
る角度にしており(インキ往復ローラ(5)の一点から
インキ着ローラ(7)を経て版胴(20)上の同一絵柄の
2枚の版の同一点に達する転動長さと、インキ往復ロー
ラ(5)の一点からインキ着ローラ(6)を経て版胴
(20)上の同一絵柄の2枚の版の同一点に達する転動長
さとの差を版胴(20)の全周長の1/2になる角度にして
おり),インキ往復ローラ(5)の一点を版胴(20)上
の同一絵柄の2枚の版の同一点に対して共有化できて,
インキ往復ローラ(5)に基づく絵柄のズレを生じさせ
ない。(Ii) In addition, for one ink reciprocating roller (5) that contacts two ink forming rollers (6) and (7) and rotates in the opposite direction to the ink forming rollers (6) and (7), The rolling length of the rotation is set to approximately 1/2 of the circumference of the plate cylinder (20), similarly to the two ink applying rollers (6) and (7). In addition, the angle (θ) connecting the center of each of the inking rollers (6) and (7) with the center of the plate cylinder (20) is defined as [from the contact point (A) of the inking roller (7) and the ink reciprocating roller (5)]. Ink roller (7)
And the circumferential length (AB) of the ink applying roller (7) in the rotation direction up to the contact (B) of the plate cylinder (20)] = [(the contact (A) of the ink applying roller (7) and the ink reciprocating roller (5)) Circumference of the ink reciprocating roller (5) in the rotation direction from the contact point (C) of the ink reciprocating roller (5) to the ink applying roller (6) and the ink reciprocating roller (5) + the ink applying roller (6) and the ink reciprocating roller (5) Circumferential length (CD) in the rotational direction of the inking roller (6) from the contact (C) of the above to the contact (D) of the inking roller (6) and the plate cylinder (20) + the inking roller (6) and the plate cylinder (2
0) from the contact (D) to the inking roller (7) and the plate cylinder (2).
0), the circumferential length (D) of the plate cylinder (20) in the rotational direction up to the contact (B).
B))-(1/2 of the total circumference of the plate cylinder (20))] (the plate cylinder passes from one point of the ink reciprocating roller (5) through the ink application roller (7)). (20) The rolling length which reaches the same point of the two plates of the same picture on the same pattern, and the two of the same picture on the plate cylinder (20) from one point of the ink reciprocating roller (5) via the ink applying roller (6). The difference from the rolling length that reaches the same point on the plate is set to an angle that is 1/2 of the total circumference of the plate cylinder (20).) One point of the ink reciprocating roller (5) is the plate cylinder (20). The same point of the two plates of the same pattern above can be shared,
The displacement of the picture pattern due to the ink reciprocating roller (5) does not occur.
第1図は本考案に係わる印刷機の一実施例を示す側面
図,第2図は従来の印刷機を示す側面図である。 (1)……インキポンプ,(2)……吐出管,(3)イ
ンキレール,(4)……インキ元ローラ,(5)……イ
ンキ往復ローラ,(6)(7)……インキ着ローラ,
(8)……インキ往復ならしローラ,(9)……インキ
着ならしローラ,(11)……水槽,(12)……水元ロー
ラ,(13)……水往復ローラ,(14)……水着ローラ,
(15)……湿し装置,(20)……版胴,(21)……ブラ
ンケツト胴,(22)……印刷紙。FIG. 1 is a side view showing an embodiment of a printing press according to the present invention, and FIG. 2 is a side view showing a conventional printing press. (1) ink pump, (2) discharge pipe, (3) ink rail, (4) ink source roller, (5) ink reciprocating roller, (6) (7) ink application roller,
(8)… Ink reciprocating leveling roller, (9)… Ink leveling roller, (11)… water tank, (12)… water source roller, (13)… water reciprocating roller, (14) …… Swimsuit roller,
(15)… dampening device, (20)… plate cylinder, (21)… blanket cylinder, (22)… printing paper.
フロントページの続き (72)考案者 盛本 勝彦 広島県三原市糸崎町5007番地 三菱重工 業株式会社三原製作所内 (72)考案者 添田 浩充 広島県広島市西区観音新町4丁目6番22 号 三菱重工業株式会社広島研究所内 (72)考案者 岩崎 謙二 広島県広島市西区観音新町4丁目6番22 号 三菱重工業株式会社広島研究所内 (72)考案者 広田 昌隆 広島県広島市西区観音新町4丁目6番22 号 菱明技研株式会社内 (72)考案者 伴谷 義彦 広島県広島市西区観音新町4丁目6番22 号 菱明技研株式会社内 (56)参考文献 特開 昭58−45955(JP,A) 特開 昭60−225756(JP,A) 実開 昭60−83746(JP,U)Continuing on the front page (72) Katsuhiko Morimoto 5007 Itozakicho, Mihara-shi, Hiroshima Prefecture Mitsubishi Heavy Industries, Ltd. Mihara Works Co., Ltd. Inside Hiroshima Research Institute Co., Ltd. (72) Kenji Iwasaki 4-6-22 Kannon Shinmachi, Nishi-ku, Hiroshima-shi, Hiroshima Mitsubishi Heavy Industries, Ltd. Hiroshima Research Center Co., Ltd. No. 22 Ryomei Giken Co., Ltd. (72) Inventor Yoshihiko Banya 4-6-22 Kanon Shinmachi, Nishi-ku, Hiroshima City, Hiroshima Prefecture Ryomei Giken Co., Ltd. (56) References JP-A-58-45955 (JP, A Japanese Patent Application Laid-Open No. Sho 60-225756 (JP, A)
Claims (3)
180°位置毎にそれぞれの絵柄が版胴(20)の回転軸対
称になるように取付けた印刷機において,版胴(20)に
接触して版胴(20)とは反対の方向に回転する2本のイ
ンキ着ローラ(6)(7)と,同各インキ着ローラ
(6)(7)に接触して同各インキ着ローラ(6)
(7)とは反対の方向に回転する1本のインキ往復ロー
ラ(5)とを有し,同各インキ着ローラ(6)(7)の
直径及び同インキ往復ローラ(5)の直径を,それぞれ
にニツプ圧で接触して1回転するときの転動長さが版胴
(20)の全周長の略1/2になる直径にし,各インキ着ロ
ーラ(6)(7)の中心と版胴(20)の中心とを結ぶ角
度(θ)を、〔インキ着ローラ(7)及びインキ往復ロ
ーラ(5)の接点(A)からインキ着ローラ(7)及び
版胴(20)の接点(B)までのインキ着ローラ(7)の
回転方向の周長(AB)〕=〔(インキ着ローラ(7)及
びインキ往復ローラ(5)の接点(A)からインキ着ロ
ーラ(6)及びインキ往復ローラ(5)の接点(C)ま
でのインキ往復ローラ(5)の回転方向の周長(AC)+
インキ着ローラ(6)及びインキ往復ローラ(5)の接
点(C)からインキ着ローラ(6)及び版胴(20)の接
点(D)までのインキ着ローラ(6)の回転方向の周長
(CD)+インキ着ローラ(6)及び版胴(20)の接点
(D)からインキ着ローラ(7)及び版胴(20)の接点
(B)までの版胴(20)の回転方向の周長(DB))−
(版胴(20)の全周長の1/2)〕の値と同一になる角度
にしたことを特徴とする印刷機。(1) A circumferential direction of a plate cylinder (20) by printing two plates having the same pattern.
In a printing press mounted so that each pattern is symmetrical with respect to the rotational axis of the plate cylinder (20) at every 180 ° position, it contacts the plate cylinder (20) and rotates in the opposite direction to the plate cylinder (20) The two inking rollers (6) and (7) and the respective inking rollers (6) and (7) in contact with the respective inking rollers (6) and (7)
(7) a single ink reciprocating roller (5) rotating in the opposite direction to the ink reciprocating roller (5). The rolling length when making one rotation by contacting each with the nip pressure is set to a diameter that is approximately 1/2 of the entire circumference of the plate cylinder (20). The angle (θ) connecting the center of the plate cylinder (20) is defined as [from the contact point (A) of the ink forming roller (7) and the ink reciprocating roller (5) to the contact point of the ink forming roller (7) and the plate cylinder (20)]. Perimeter (AB) in the rotating direction of the ink applying roller (7) up to (B)] = [(from the contact (A) of the ink applying roller (7) and the ink reciprocating roller (5) to the ink applying roller (6) and The circumferential length (AC) of the ink reciprocating roller (5) in the rotational direction up to the contact (C) of the ink reciprocating roller (5) +
Circumferential length in the rotation direction of the inking roller (6) from the contact (C) of the inking roller (6) and the ink reciprocating roller (5) to the contact (D) of the inking roller (6) and the plate cylinder (20). (CD) + the rotational direction of the plate cylinder (20) from the contact point (D) between the inking roller (6) and the plate cylinder (20) to the contact point (B) between the inking roller (7) and the plate cylinder (20). Circumference (DB)-
(1/2 of the entire circumference of the plate cylinder (20))].
の方向に回転する1本の水着ローラ(14)を有し,同水
着ローラ(14)の直径を,版胴(20)にニツプ圧負荷状
態で接触して1回転するときの転動長さが版胴(20)の
全周長の略1/2になる直径にした請求項1記載の印刷
機。2. A swimsuit roller (14) which rotates in a direction opposite to the plate cylinder (20) in contact with the plate cylinder (20). 2. The printing press according to claim 1, wherein the rolling length when making one rotation while contacting the cylinder (20) under a nip pressure load is set to a diameter that is approximately 1/2 of the entire circumference of the plate cylinder (20).
ローラ(7)とは反対の方向に回転する1本のインキ着
ならしローラ(9)と,インキ往復ローラ(5)に接触
してインキ往復ローラ(5)とは反対の方向に回転する
1本のインキ往復ならしローラ(8)とを有し,同イン
キ着ならしローラ(9)及び同インキ往復ならしローラ
(8)の直径を,インキ着ローラ(7)及びインキ往復
ローラ(5)にニツプ圧負荷状態で接触して1回転する
ときの転動長さが版胴(20)の全周長の略1/2になる直
径にした請求項1記載の印刷機。3. An inking roller (9) rotating in a direction opposite to the inking roller (7) in contact with the inking roller (7) and in contact with the ink reciprocating roller (5). And a single ink reciprocating leveling roller (8) that rotates in the opposite direction to the ink reciprocating roller (5). ), The rolling length when making one rotation while contacting the ink applying roller (7) and the ink reciprocating roller (5) under a nip pressure load is approximately 1 / the total circumferential length of the plate cylinder (20). 2. The printing press according to claim 1, which has a diameter of 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988138603U JP2535531Y2 (en) | 1988-10-26 | 1988-10-26 | Printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988138603U JP2535531Y2 (en) | 1988-10-26 | 1988-10-26 | Printer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0259930U JPH0259930U (en) | 1990-05-01 |
JP2535531Y2 true JP2535531Y2 (en) | 1997-05-14 |
Family
ID=31401087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1988138603U Expired - Lifetime JP2535531Y2 (en) | 1988-10-26 | 1988-10-26 | Printer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2535531Y2 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3134796C2 (en) * | 1981-09-02 | 1983-12-01 | Koenig & Bauer AG, 8700 Würzburg | Inking unit for a rotary printing press |
JPS6083746U (en) * | 1983-11-16 | 1985-06-10 | 株式会社東京機械製作所 | Ink supply device for lithographic rotary printing presses |
DE3412783C2 (en) * | 1984-04-05 | 1986-09-25 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | Printing unit of a web-fed rotary offset printing machine |
-
1988
- 1988-10-26 JP JP1988138603U patent/JP2535531Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0259930U (en) | 1990-05-01 |
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