JPH1178201A - Method for variable printing of pattern pitch - Google Patents

Method for variable printing of pattern pitch

Info

Publication number
JPH1178201A
JPH1178201A JP24672697A JP24672697A JPH1178201A JP H1178201 A JPH1178201 A JP H1178201A JP 24672697 A JP24672697 A JP 24672697A JP 24672697 A JP24672697 A JP 24672697A JP H1178201 A JPH1178201 A JP H1178201A
Authority
JP
Japan
Prior art keywords
belt conveyor
plate
pattern pitch
plate cylinder
pattern
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.)
Pending
Application number
JP24672697A
Other languages
Japanese (ja)
Inventor
Yoichi Miyagawa
洋一 宮川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MITSUWA SEIKI CO Ltd
MITSUWA SEIKI KK
Original Assignee
MITSUWA SEIKI CO Ltd
MITSUWA SEIKI KK
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 MITSUWA SEIKI CO Ltd, MITSUWA SEIKI KK filed Critical MITSUWA SEIKI CO Ltd
Priority to JP24672697A priority Critical patent/JPH1178201A/en
Publication of JPH1178201A publication Critical patent/JPH1178201A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To print a different pattern pitch on a platy material with one plate cylinder by a method wherein printing is executed by elongating or shortening the pattern pitch without changing a plate diameter of the plate cylinder by changing feed speed of a belt conveyor. SOLUTION: A change gear 10 is provided between a prime moving shaft 9 and a belt conveyor 3. Rotation of the prime moving shaft 9 is varied with the change gear 10, and transmitted to the belt conveyor 3 to variably control the speed of the belt conveyor 3. When the carrying speed of the belt conveyor 3 is made higher than a synchronous speed, since a distance wherein a platy material moves becomes larger than a circumferential length wherein a plate cylinder 1 moves in a unit time, a pattern pitch printed on the platy material 4 becomes larger than the pattern pitch of the plate cylinder 1. When the carrying speed of the belt conveyor 3 is made lower than the synchronous speed in contrast therewith, since the distance wherein the platy material 4 moves in a unit time becomes smaller than the circumferential length wherein the plate cylinder moves in a unit time, the pattern pitch printed on the platy material 4 becomes smaller than the pattern pitch of the plate cylinder 1.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、1つの版胴でその
柄ピッチを変えて板状物に印刷できるようにした柄ピッ
チ可変印刷法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pattern pitch variable printing method which enables printing on a plate-like material by changing the pattern pitch with one plate cylinder.

【0002】[0002]

【従来の技術】板状物例えば建材等の表面に石や煉瓦、
草花や木目、或は幾何学的模様等を印刷する場合があ
る。この場合、通常は紙印刷と同様に印刷機の版胴と圧
胴との間に板状物を送り込んで印刷する。従って、板状
物の表面には版胴と同じ柄ピッチで印刷される。
2. Description of the Related Art Stone or brick,
In some cases, flowers, wood grain, or geometric patterns are printed. In this case, printing is usually performed by feeding a plate-like material between the plate cylinder and the impression cylinder of the printing press as in paper printing. Accordingly, printing is performed on the surface of the plate at the same pattern pitch as the plate cylinder.

【0003】[0003]

【発明が解決しようとする課題】板状物の印刷は、同じ
柄であってもピッチの異なるものが要求されることがあ
る。この要求に応えるには、同柄で異ピッチの版胴を数
種類用意しなければならず、しかも建材用の場合エンド
レス版になるので版径も変えなければならない。版胴が
数種類であると、その都度版胴を取り替えねばならず、
且つ版径が異なると回転速度を調整するために駆動ギヤ
も交換しなければならなくなり、印刷効率の低下を来す
ばかりか、コストアップの原因になり、版胴の管理も厄
介になる等の問題が生じる。
In the printing of a plate-like material, the same pattern may be required to be printed at a different pitch. In order to meet this demand, several types of plate cylinders having the same pattern and different pitches must be prepared, and in the case of building materials, the plate diameter must be changed because it is an endless plate. If there are several types of plate cylinders, the plate cylinder must be replaced each time,
In addition, if the plate diameters are different, the drive gear must be replaced to adjust the rotation speed, which not only reduces the printing efficiency, but also increases the cost and makes the plate cylinder management troublesome. Problems arise.

【0004】本発明は、このような問題を解決するため
になされ、1つの版胴を用いて板状物に柄ピッチの異な
る印刷ができるようにした柄ピッチ可変印刷法を提供す
ることを目的とする。
An object of the present invention is to provide a pattern pitch variable printing method capable of performing printing with different pattern pitches on a plate-like material using one plate cylinder, in order to solve such a problem. And

【0005】[0005]

【課題を解決するための手段】この目的を達成するため
の手段として、本発明は、ベルトコンベアにて板状物を
印刷機に送り込み、板状物に版胴の柄を印刷する場合に
おいて、前記ベルトコンベアに微調節可能な精密な変速
機を設け、この変速機によりベルトコンベアの送り速度
を変えることで、前記版胴の版径を変えずに柄ピッチを
伸ばし又は縮めて印刷することを要旨とする。又、印刷
機は、フレキソ印刷機又はオフセット印刷機であること
を要旨とするものである。
As a means for achieving this object, the present invention relates to a case where a plate-like material is fed to a printing machine by a belt conveyor, and a pattern of a plate cylinder is printed on the plate-like material. The belt conveyor is provided with a precision transmission that can be finely adjusted, and by changing the feed speed of the belt conveyor with this transmission, it is possible to extend or shrink the pattern pitch without changing the plate diameter of the plate cylinder and print. Make a summary. The gist of the invention is that the printing press is a flexographic printing press or an offset printing press.

【0006】[0006]

【発明の実施の形態】以下、本発明の実施の形態を添付
図面に基づいて詳説する。図1は、本発明をフレキソ印
刷機に適用した例を示すもので、1は版胴、2は圧胴で
あり、これらの間をベルトコンベア3により板状物4が
送り込まれて印刷される。ベルトコンベア3には、ピン
チロール5が設けられている。
Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 shows an example in which the present invention is applied to a flexographic printing press. 1 is a plate cylinder, 2 is an impression cylinder, and a plate-like material 4 is fed by a belt conveyor 3 between these and printed. . A pinch roll 5 is provided on the belt conveyor 3.

【0007】6はベルトコンベア3に配設された供給装
置であり、エンドレスのチェーンコンベア7にフック8
が取り付けられ、そのフック8で板状物4を押してベル
トコンベア3側に供給する。
Reference numeral 6 denotes a supply device provided on the belt conveyor 3, and a hook 8 is attached to an endless chain conveyor 7.
The plate 8 is pushed by the hook 8 and supplied to the belt conveyor 3 side.

【0008】9は原動軸であり、モータMにより回転駆
動され、前記版胴1とベルトコンベア3とチェーンコン
ベア7とを同期運転させる。
Reference numeral 9 denotes a driving shaft, which is driven by a motor M to rotate the plate cylinder 1, the belt conveyor 3, and the chain conveyor 7 synchronously.

【0009】10は原動軸9とベルトコンベア3との間
に設けられた変速機であり、原動軸9の回転を変えてベ
ルトコンベア3に伝達し、このベルトコンベア3の速度
を可変制御できるようにしてある。変速機10は、少な
くとも1/1000以下の調節ができるものを使用す
る。
Reference numeral 10 denotes a transmission provided between the driving shaft 9 and the belt conveyor 3, which changes the rotation of the driving shaft 9 and transmits the rotation to the belt conveyor 3 so that the speed of the belt conveyor 3 can be variably controlled. It is. The transmission 10 is capable of adjusting at least 1/1000 or less.

【0010】11は原動軸9とチェーンコンベア7との
間に設けられた位相装置であり、図示は省略したが歯車
機構の差動装置を有し、前記フック8の位置を位相する
ことによりベルトコンベア3への板状物4の供給タイミ
ングを調整する。
Reference numeral 11 denotes a phase device provided between the driving shaft 9 and the chain conveyor 7. Although not shown, the phase device has a differential mechanism of a gear mechanism. The supply timing of the plate-like material 4 to the conveyor 3 is adjusted.

【0011】前記板状物4は、供給装置6のチェーンコ
ンベア7によりベルトコンベア3側に供給されると、ピ
ンチロール5で押さえられながらベルトコンベア3によ
り版胴1と圧胴2との間に送り込まれる。
When the plate-like material 4 is supplied to the belt conveyor 3 by the chain conveyor 7 of the supply device 6, the plate-like material 4 is held between the plate cylinder 1 and the impression cylinder 2 by the belt conveyor 3 while being pressed by the pinch roll 5. Sent in.

【0012】ここで、通常は版胴1の回転速度とベルト
コンベア3の搬送速度とは同期させるが、本発明の場合
は同期させずにベルトコンベア3の搬送速度を前記変速
機10により変速する。
Here, the rotation speed of the plate cylinder 1 and the transport speed of the belt conveyor 3 are usually synchronized, but in the case of the present invention, the transport speed of the belt conveyor 3 is changed by the transmission 10 without synchronization. .

【0013】ベルトコンベア3の搬送速度を同期速度よ
り速くすると、単位時間における版胴1が動く円周長さ
よりも板状物4が動く距離が大きくなるため、板状物4
に印刷される柄ピッチP1 は版胴1の柄ピッチPより大
きくなる。従って、図2(ロ)に示すように柄は板状物4
の移動方向に沿って伸ばされた状態で印刷される。
If the conveying speed of the belt conveyor 3 is higher than the synchronous speed, the distance that the plate-like object 4 moves is greater than the circumferential length of the plate cylinder 1 in a unit time.
Pattern pitch P 1 to be printed on is greater than the stem pitch P of the plate cylinder 1. Therefore, as shown in FIG.
Is printed in a state of being stretched along the moving direction of.

【0014】これとは逆に、ベルトコンベア3の搬送速
度を同期速度より遅くすると、単位時間における版胴1
が動く円周長さよりも板状物4が動く距離が小さくなる
ため、板状物4に印刷される柄ピッチP2 は版胴1の柄
ピッチPより小さくなる。従って、図2(ハ) に示すよう
に柄は板状物4の移動方向に沿って縮められた状態で印
刷される。
Conversely, if the conveying speed of the belt conveyor 3 is set lower than the synchronous speed, the plate cylinder 1 per unit time is
Since the distance the circumferential plate-like material than the length 4 is moved to move smaller, pattern pitch P 2 to be printed on the platelet 4 is smaller than stem pitch P of the plate cylinder 1. Therefore, as shown in FIG. 2C, the pattern is printed in a state where the pattern is contracted along the moving direction of the plate-like material 4.

【0015】このようにして、1つの版胴1でその版胴
の柄ピッチとは異なるピッチで板状物4に印刷できるた
め、数種類の版胴を用意する必要がなく、版胴の取り替
えが不要であり、又版胴の取り替えに伴うギヤの交換も
不要であり、印刷効率の低下を来すことがない。
As described above, since one plate cylinder 1 can print on the plate-like material 4 at a pitch different from the pattern pitch of the plate cylinder, it is not necessary to prepare several types of plate cylinders, and the plate cylinder can be replaced. There is no need to change gears when replacing the plate cylinder, and there is no reduction in printing efficiency.

【0016】柄の伸ばし(縮み)を極端な範囲にしなけ
れば、ピッチの異なる柄が板状物4に印刷されても不自
然に見えることはなく、バリエーションの異なる柄を任
意に印刷することが可能となる。
Unless the extension (shrinkage) of the pattern is set to an extreme range, even if a pattern having a different pitch is printed on the plate-like material 4, the pattern does not look unnatural, and a pattern having a different variation can be arbitrarily printed. It becomes possible.

【0017】ベルトコンベア3の搬送速度を変えること
により版外周と板状物面が滑ることになり摩擦抵抗を生
じるが、板状物4は紙よりも遥かに硬質であり、しかも
ベルトとの接触面積が広く摩擦力が大なるためスリップ
等のトラブルは発生しない。
By changing the conveying speed of the belt conveyor 3, the outer periphery of the plate and the surface of the plate-like material slip, causing frictional resistance. However, the plate-like material 4 is much harder than paper, and furthermore, is in contact with the belt. Since the area is large and the frictional force is large, troubles such as slipping do not occur.

【0018】図3は、本発明をオフセット印刷機に適用
した例を示すもので、21は版胴、、22はゴム胴(オ
フセットロール)、23は圧胴であり、ゴム胴22と圧
胴23との間をベルトコンベア24により板状物25が
送り込まれてオフセット印刷される。ベルトコンベア2
4には、ピンチロール26が設けられている。
FIG. 3 shows an example in which the present invention is applied to an offset printing machine. Reference numeral 21 denotes a plate cylinder, 22 denotes a blanket cylinder (offset roll), 23 denotes an impression cylinder, and a blanket cylinder 22 and an impression cylinder. The plate-like material 25 is fed by a belt conveyor 24 between the sheet-like material 23 and is subjected to offset printing. Belt conveyor 2
4 is provided with a pinch roll 26.

【0019】27はベルトコンベア24に配設された供
給装置であり、エンドレスのチェーンコンベア28にフ
ック29が取り付けられ、そのフック29で板状物25
を押してベルトコンベア24側に供給する。
Reference numeral 27 denotes a supply device disposed on the belt conveyor 24. A hook 29 is attached to an endless chain conveyor 28, and the hook 29 is used to feed the plate-like material 25.
Is supplied to the belt conveyor 24 side.

【0020】30は原動軸であり、モータMにより回転
駆動され、前記版胴21とベルトコンベア24とチェー
ンコンベア28とを同期運転させる。
Reference numeral 30 denotes a driving shaft, which is rotationally driven by a motor M, and causes the plate cylinder 21, the belt conveyor 24, and the chain conveyor 28 to operate synchronously.

【0021】31は原動軸30とベルトコンベア24と
の間に設けられた変速機であり、原動軸30の回転を変
えてベルトコンベア24に伝達し、このベルトコンベア
24の速度を可変制御する。変速機31は、少なくとも
1/1000以下の調節ができるものを使用する。
Reference numeral 31 denotes a transmission provided between the driving shaft 30 and the belt conveyor 24. The transmission 31 changes the rotation of the driving shaft 30 and transmits the rotation to the belt conveyor 24 to variably control the speed of the belt conveyor 24. The transmission 31 is capable of adjusting at least 1/1000 or less.

【0022】32は原動軸30とゴム胴22との間に設
けられた変速機であり、原動軸30の回転を変えてゴム
胴22に伝達し、このゴム胴22の回転速度を可変制御
する。この変速機32も、少なくとも1/1000以下
の調節ができるものを使用する。
Reference numeral 32 denotes a transmission provided between the driving shaft 30 and the blanket cylinder 22. The transmission 32 changes the rotation of the driving shaft 30 and transmits it to the blanket cylinder 22, and variably controls the rotation speed of the blanket cylinder 22. . As the transmission 32, one capable of adjusting at least 1/1000 or less is used.

【0023】33は原動軸30とチェーンコンベア28
との間に設けられた位相装置であり、図示は省略したが
歯車機構の差動装置を有し、前記フック29の位置を位
相することによりベルトコンベア24への板状物25の
供給タイミングを調整する。
Reference numeral 33 denotes the driving shaft 30 and the chain conveyor 28.
And a phase device provided with a differential mechanism of a gear mechanism (not shown). By phase-shifting the position of the hook 29, the supply timing of the plate-like material 25 to the belt conveyor 24 can be adjusted. adjust.

【0024】前記板状物25は、供給装置27のチェー
ンコンベア28によりベルトコンベア24側に供給され
ると、ピンチロール26で押さえられながらベルトコン
ベア24によりゴム胴22と圧胴23との間に送り込ま
れる。
When the plate 25 is supplied to the belt conveyor 24 by the chain conveyor 28 of the supply device 27, the plate 25 is pressed between the blanket cylinder 22 and the impression cylinder 23 by the belt conveyor 24 while being pressed by the pinch roll 26. Sent in.

【0025】ここで、通常はゴム胴22の回転速度とベ
ルトコンベア24の搬送速度とは同期させるが、本発明
の場合は同期させずにベルトコンベア24の搬送速度を
前記変速機31により変速する。
Here, the rotation speed of the blanket cylinder 22 and the transport speed of the belt conveyor 24 are usually synchronized, but in the case of the present invention, the transport speed of the belt conveyor 24 is changed by the transmission 31 without synchronization. .

【0026】ベルトコンベア24の搬送速度を同期速度
より速くすると、単位時間におけるゴム胴22が動く円
周長さよりも板状物25が動く距離が大きくなるため、
前記フレキソ印刷の場合と同様に板状物25に印刷され
る柄ピッチP1 はゴム胴22の柄ピッチPより大きくな
る。従って、印刷された柄は板状物25の移動方向に沿
って伸ばされたものとなる。
If the conveying speed of the belt conveyor 24 is higher than the synchronizing speed, the moving distance of the plate-like object 25 becomes larger than the circumferential length of the blanket cylinder 22 moving per unit time.
The pattern pitch P 1 to be printed on the plate-like workpiece 25 as in the case of flexographic printing is larger than the pattern pitch P of the blanket cylinder 22. Therefore, the printed pattern is extended along the moving direction of the plate-like material 25.

【0027】これとは逆に、ベルトコンベア24の搬送
速度を同期速度より遅くすると、単位時間におけるゴム
胴22が動く円周長さよりも板状物25が動く距離が小
さくなるため、板状物25に印刷される柄ピッチP2
ゴム胴22の柄ピッチPより小さくなる。従って、印刷
された柄は板状物25の移動方向に沿って縮められたも
のとなる。従って、このオフセット印刷の場合も、前記
フレキソ印刷の場合と同様の結果が得られる。
Conversely, if the conveying speed of the belt conveyor 24 is set lower than the synchronous speed, the moving distance of the plate 25 is smaller than the circumferential length of the blanket cylinder 22 moving per unit time. The pattern pitch P 2 printed on the print cylinder 25 is smaller than the pattern pitch P of the blanket cylinder 22. Therefore, the printed pattern is shrunk along the moving direction of the plate-like material 25. Therefore, in the case of the offset printing, the same result as in the case of the flexographic printing is obtained.

【0028】[0028]

【発明の効果】以上説明したように、本発明によれば、
板状物に柄を印刷するに際し、版径を変えずに1つの版
胴でその柄ピッチとは異なるピッチで印刷できるように
したので、数種類の版胴を用意する必要がなく、版胴の
取り替えが不要であり、又版胴の取り替えに伴うギヤの
交換も不要であり、印刷効率の向上が図れると共にコス
トアップを防止し、版胴の管理も容易になる等の優れた
効果を奏する。柄の伸ばし(縮み)を極端な範囲にしな
ければ、柄ピッチを変えても不自然に見えることがな
く、要望に応じてバリエーションの異なる柄を容易に印
刷することができる。
As described above, according to the present invention,
When printing a pattern on a plate, it is possible to print at a pitch different from the pattern pitch on one plate cylinder without changing the plate diameter, so there is no need to prepare several types of plate cylinders. There is no need for replacement, and there is no need to change gears when replacing the plate cylinder. This provides excellent effects such as improvement in printing efficiency, prevention of cost increase, and easy management of the plate cylinder. If the extension (shrinkage) of the pattern is not set in an extreme range, the pattern does not look unnatural even when the pattern pitch is changed, and a pattern with different variations can be easily printed as desired.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明をフレキソ印刷機に適用した例を示す説
明図である。
FIG. 1 is an explanatory diagram showing an example in which the present invention is applied to a flexographic printing press.

【図2】(イ) は通常の印刷法により印刷された板状物の
平面図、(ロ) 及び(ハ) は本発明の印刷法により印刷され
た板状物のそれぞれ平面図である。
FIG. 2A is a plan view of a plate-like object printed by a normal printing method, and FIGS. 2B and 2C are plan views of a plate-like object printed by a printing method of the present invention.

【図3】本発明をオフセット印刷機に適用した例を示す
説明図である。
FIG. 3 is an explanatory diagram showing an example in which the present invention is applied to an offset printing press.

【符号の説明】[Explanation of symbols]

1…版胴 2…圧胴 3…ベルトコンベア 4…板状物 5…ピンチロール 6…供給装置 7…チェーンコンベア 8…フック 9…原動機 10…変速機 11…位相装置 21…版胴 22…ゴム胴 23…圧胴 24…ベルトコンベア 25…板状物 26…ピンチロール 27…供給装置 28…チェーンコンベア 29…フック 30…原動機 31、32…変速機 33…位相装置 REFERENCE SIGNS LIST 1 plate cylinder 2 impression cylinder 3 belt conveyor 4 plate-like object 5 pinch roll 6 supply device 7 chain conveyor 8 hook 9 motor 10 transmission 10 phase device 21 plate cylinder 22 rubber Cylinder 23 ... impression cylinder 24 ... belt conveyor 25 ... plate-like object 26 ... pinch roll 27 ... supply device 28 ... chain conveyor 29 ... hook 30 ... motor 31, 32 ... transmission 33 ... phase device

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】ベルトコンベアにて板状物を印刷機に送り
込み、板状物に版胴の柄を印刷する場合において、前記
ベルトコンベアに変速機を設け、この変速機によりベル
トコンベアの送り速度を変えることで、前記版胴の版径
を変えずに柄ピッチを伸ばし又は縮めて印刷することを
特徴とする柄ピッチ可変印刷法。
When a plate material is sent to a printing press by a belt conveyor and a pattern of a plate cylinder is printed on the plate material, a transmission is provided on the belt conveyor, and the transmission speed of the belt conveyor is provided by the transmission. The pattern pitch variable printing method, wherein the pattern pitch is extended or contracted without changing the plate diameter of the plate cylinder by changing the pattern diameter.
【請求項2】印刷機は、フレキソ印刷機又はオフセット
印刷機である請求項1記載の柄ピッチ可変印刷法。
2. The pattern pitch variable printing method according to claim 1, wherein the printing press is a flexographic printing press or an offset printing press.
JP24672697A 1997-09-11 1997-09-11 Method for variable printing of pattern pitch Pending JPH1178201A (en)

Priority Applications (1)

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JP24672697A JPH1178201A (en) 1997-09-11 1997-09-11 Method for variable printing of pattern pitch

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Application Number Priority Date Filing Date Title
JP24672697A JPH1178201A (en) 1997-09-11 1997-09-11 Method for variable printing of pattern pitch

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JPH1178201A true JPH1178201A (en) 1999-03-23

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006289731A (en) * 2005-04-08 2006-10-26 Hirano Giken Kogyo Kk Printing press
JP2014154277A (en) * 2013-02-06 2014-08-25 Toppan Printing Co Ltd Method for forming ink pattern, method for manufacturing organic electroluminescent element, letterpress printing equipment and organic electroluminescent element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006289731A (en) * 2005-04-08 2006-10-26 Hirano Giken Kogyo Kk Printing press
JP2014154277A (en) * 2013-02-06 2014-08-25 Toppan Printing Co Ltd Method for forming ink pattern, method for manufacturing organic electroluminescent element, letterpress printing equipment and organic electroluminescent element

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