JPH11320846A - Damage preventing device for printing machine - Google Patents
Damage preventing device for printing machineInfo
- Publication number
- JPH11320846A JPH11320846A JP11105484A JP10548499A JPH11320846A JP H11320846 A JPH11320846 A JP H11320846A JP 11105484 A JP11105484 A JP 11105484A JP 10548499 A JP10548499 A JP 10548499A JP H11320846 A JPH11320846 A JP H11320846A
- Authority
- JP
- Japan
- Prior art keywords
- printing
- printing unit
- tear
- units
- impression cylinder
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/18—Web break detection
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する分野】本発明は、紙、金属箔、繊維製品
その他の帯状材料のロールへの印刷を行う印刷機におけ
る破損を防止するための装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for preventing breakage in a printing machine for printing a roll of paper, metal foil, textile, or other belt-shaped material.
【０００２】[0002]
【従来の技術】印刷機の印刷ユニットにおいて被印刷物
が破損することを防ぐための、現在知られている方法に
おいては、帯状材料を捕捉、切断または固定する装置に
より印刷ユニットを保護している。2. Description of the Related Art In order to prevent the printing substrate from being damaged in the printing unit of a printing press, currently known methods protect the printing unit by means of a device for catching, cutting or fixing the web material.
【０００３】ＤＥ−ＰＳ４１３０６７９においては、印
刷ユニットの１つの直前と直後に配置され帯状物により
駆動されるガイドロールに内蔵されたパルス発生器によ
り、ガイドロールにおける印刷速度を測定し、パルス発
生器に接続された制御用コンピュータによりパルス値を
比較し、相互に比較されたパルス値が予め定めた基準値
を外れたときに印刷機を停止させることにより、ロール
式輪転印刷機の印刷ユニットの損傷を防止する方法が開
示されている。[0003] In DE-PS 41 30 679, the printing speed on a guide roll is measured by means of a pulse generator which is arranged immediately before and after one of the printing units and which is driven by a strip and which is driven by a belt-like material. Pulse values are compared by a connected control computer, and when the pulse values compared with each other deviate from a predetermined reference value, the printing press is stopped to prevent damage to the printing unit of the roll-type rotary printing press. A method of preventing this is disclosed.
【０００４】この方法によれば、印刷ユニットの損傷を
避けるために応答速度が低下させられる。According to this method, the response speed is reduced in order to avoid damage to the printing unit.
【０００５】[0005]
【発明が解決しようとする課題】しかしながらこの方法
には、技術的に複雑であること、占有空間が大きいこ
と、およびすべての用紙ロールに対する最適条件を実現
できないことによる印刷操作上の困難などの欠点があ
る。このことは特に複数の用紙ロールを使用する印刷機
にあてはまる。さらに用紙が断裂したときは用紙巻き取
りロールに危険が及び、ブランケット、ベアリング、ジ
ャーナル、更には極端な場合印刷ユニットの機構全体が
破損する可能性がある。折り機の停止や圧胴への巻き込
みによる印刷機の駆動系の停止によって最大１週間程度
の操業停止を余地なくされることがあり、これは稼働率
の約２％の低下に相当する。これに更に修理のコストが
加わる。他の既知の圧胴保護システムでは、電源の接続
が分割ピンを介して直接印刷ユニット駆動系内で切断さ
れる。このためブランケット胴の駆動輪は２本の剪断ボ
ルトで接続された２つの部分から成っており、巻き込み
によって駆動系への過負荷が生ずるとこのボルトが破断
して、駆動輪が空転する。これによって圧胴駆動輪の破
損や圧胴ジャーナルの捩りが防止される。However, this method has disadvantages such as technical complexity, large occupied space, and difficulty in printing operation due to the inability to realize optimum conditions for all paper rolls. There is. This is especially true for printing presses that use multiple paper rolls. Further, if the paper tears, there is a danger to the paper take-up roll, and the blanket, bearings, journals and, in extreme cases, the entire mechanism of the printing unit may be damaged. A stoppage of the folding machine or a stoppage of the drive system of the printing press due to the wrapping around the impression cylinder may make it impossible to stop the operation for a maximum of about one week, which corresponds to a decrease in the operation rate of about 2%. This adds to the cost of repair. In other known impression cylinder protection systems, the power supply is disconnected directly in the printing unit drive via split pins. For this reason, the drive wheel of the blanket cylinder is composed of two parts connected by two shear bolts, and when the drive system is overloaded by entanglement, the bolt is broken and the drive wheel runs idle. This prevents damage to the impression cylinder drive wheels and torsion of the impression cylinder journal.
【０００６】したがって本発明の目的は、印刷材料の断
裂を検出することによって、印刷ユニットの破損を防止
する装置を提案することである。[0006] It is therefore an object of the present invention to propose an apparatus for preventing the printing unit from being damaged by detecting a tear in the printing material.
【０００７】[0007]
【課題を解決するための手段】本発明による印刷機にお
ける損傷防止装置においては、印刷ユニットの各々に用
紙の断裂を監視する断裂センサーが設置され、用紙の断
裂箇所以後の最初の印刷ユニットおよびそれ以後の一つ
おきの印刷ユニットの圧胴に、圧胴を直ちに帯状印刷材
料から離す制御装置が設けられ、断裂箇所以後の第１の
圧胴およびそれ以後１つおきの圧胴の回生制動力を発生
する制御装置が設けられ、断裂箇所以後の上記印刷ユニ
ットの間に位置する他の印刷ユニットに、圧胴を一定の
時間遅れの後に用紙から離す制御装置が設けられ、さら
に他の制御装置により断裂箇所以前の印刷ユニットを、
それ以後の個別に駆動される印刷ユニットと角度・速度
・位置を同期させて回転数を零に制御する。In the damage prevention device for a printing press according to the present invention, each of the printing units is provided with a rupture sensor for monitoring the rupture of the sheet, and the first printing unit after the rupture point of the sheet and the first printing unit. A control device is provided on the impression cylinders of every other printing unit which immediately releases the impression cylinders from the printing material, and the regenerative braking force of the first impression cylinder and every other impression cylinders after the tear point. A control device for separating the impression cylinder from the sheet after a certain time delay is provided in another printing unit located between the printing units after the tearing point, and a further control device. The printing unit before the tear point is
Thereafter, the rotation speed is controlled to zero by synchronizing the angle, speed, and position with the individually driven printing unit.
【０００８】[0008]
【発明の実施の形態】以下、本発明による装置を一つの
実施例によって更に詳細に説明する。図１に示すよう
に、この実施態様においては、印刷ユニット１〜６にそ
れぞれ帯状物断裂センサー７〜１４を設置し、センサー
が断裂を認識すると印刷機制御装置に信号を送り、制御
装置は予め与えられた停止用アルゴリズムによって印刷
機の制動系を作動させる。最初の印刷ユニット１の前で
断裂が発生すると、印刷ユニット１，３，５，７ないし
以後１つおきの印刷ユニットの回転数が零になるように
制御が行われ、メカトロニクス式ブレーキが作動する。
印刷ユニット２、４、６ないし以後１つおきの印刷ユニ
ットの制動系は一定時間経過後に作動し、したがってこ
れらの印刷ユニットのメカトロニクス式ブレーキはこの
一定時間の経過後に作動を開始する。このように隣接す
る２つの印刷ユニットの間で制動命令の発動に時間差を
置くことにより、帯状物は張力が著しく増加して断裂に
至る。断裂箇所の前の印刷ユニットは標準的な制動勾配
により、以後の個別に駆動されるユニットと角度・速度
・位置を同期させつつ回転数零に制御される。これによ
って著しい摩耗を来すことなくこれらのユニットを停止
させることができ、また用紙の大部分は印刷機内に残る
ので、印刷作業者が印刷機を再起動することが容易にな
り、停止時間も短縮される。最初の断裂の後に排出され
る用紙は、続く制動過程中に印刷ユニットを損傷するこ
とはない。制動勾配は通常機械ごとに異なり、最大速度
と制動対象の慣性モーメントによって決まる。更に、折
り機方向の印刷ユニットの前の断裂により、逆行する用
紙がブランケット胴に二重に巻き込まれるのを防ぐた
め、最後の印刷ユニットの出口側に用紙切断装置を設け
る。この装置はセンサー１４ないし用紙走行方向のそれ
以後のすべてのセンサーによって作動する。印刷機が完
全に停止した後、残留用紙を印刷ユニットから取り除く
ことは容易であり、帯状の用紙を入口から印刷ユニット
を経て、用紙が維持されている位置まで改めて通し、接
着し直すことができる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The apparatus according to the present invention will be described in more detail with reference to an embodiment. As shown in FIG. 1, in this embodiment, strip-like material tear sensors 7-14 are installed in the printing units 1 to 6, respectively, and when the sensors recognize the tear, a signal is sent to the printing press control device, and the control device preliminarily transmits the signal. The braking system of the printing press is activated according to the given stop algorithm. When a tear occurs before the first printing unit 1, control is performed so that the rotation speed of the printing units 1, 3, 5, 7, and every other printing unit thereafter becomes zero, and the mechatronic brake is activated. .
The braking systems of the printing units 2, 4, 6 and every other printing units are activated after a certain time, so that the mechatronic brakes of these printing units start operating after this certain time. By providing a time lag between the application of the braking command between two adjacent printing units, the tension of the web is significantly increased, and the web is ruptured. The printing unit before the rupture point is controlled to zero speed by a standard braking gradient, synchronizing the angle, speed and position with the subsequently individually driven units. This allows these units to be shut down without significant wear, and the majority of the paper remains in the press, making it easier for the print operator to restart the press and reducing downtime. Be shortened. The paper ejected after the first tear does not damage the printing unit during the subsequent braking process. The braking gradient usually varies from machine to machine and is determined by the maximum speed and the moment of inertia of the braked object. In addition, a paper cutting device is provided at the exit side of the last printing unit in order to prevent a double-winding of the reversing paper into the blanket cylinder due to a tear in front of the printing unit in the folder direction. The device is activated by the sensor 14 or any further sensors in the paper running direction. After the printing press is completely stopped, it is easy to remove the residual paper from the printing unit, and the band-shaped paper can be passed through the printing unit, passed through the printing unit to the position where the paper is maintained, and re-adhered. .
【０００９】[0009]
【発明の効果】本発明による印刷機における損傷防止装
置においては、隣接する２つの印刷ユニットの間で制動
命令の発動に時間差を置くことにより、帯状物は張力が
著しく増加して断裂に至る。これにより、印刷ユニット
の損傷を防止できる。In the damage prevention device for a printing press according to the present invention, the time difference between the activation of the brake command between two adjacent printing units causes the tension of the strip to increase significantly, leading to a tear. This can prevent the printing unit from being damaged.
【図１】本発明の実施態様を示す印刷機の概略図及び制
御テーブル。FIG. 1 is a schematic diagram of a printing press and a control table showing an embodiment of the present invention.
１、２、３、４、５、６ 印刷ユニット ７、８、９、１０、１１、１２、１３、１４ 断裂
センサー1, 2, 3, 4, 5, 6 printing unit 7, 8, 9, 10, 11, 12, 13, 14 tear sensor
Claims (1)
印刷ユニット（１〜６）の各々に用紙の断裂を監視する
断裂センサー（７〜１４）が設置され、用紙の断裂箇所
以後の最初の印刷ユニットおよびそれ以後の一つおきの
印刷ユニットの圧胴に、圧胴を直ちに帯状印刷材料から
離す制御装置が設けられ、断裂箇所以後の第１の圧胴お
よびそれ以後１つおきの圧胴の回生制動力を発生する制
御装置が設けられ、断裂箇所以後の上記印刷ユニットの
間に位置する他の印刷ユニットに、圧胴を一定の時間遅
れの後に用紙から離す制御装置が設けられ、さらに他の
制御装置により断裂箇所以前の印刷ユニットを、それ以
後の個別に駆動される印刷ユニットと角度・速度・位置
を同期させて回転数を零に制御することを特徴とする装
置。1. A damage prevention device for a printing press, comprising:
Each of the printing units (1-6) is provided with a tear sensor (7-14) for monitoring the tearing of the sheet, and the impression cylinders of the first printing unit after the tearing point of the sheet and every other printing unit thereafter. A control device for generating a regenerative braking force of the first impression cylinder after the tear point and every other impression cylinder thereafter, and a control device for immediately releasing the impression cylinder from the belt-shaped printing material is provided. A control unit for separating the impression cylinder from the sheet after a predetermined time delay is provided in another printing unit located between the printing units thereafter, and the printing unit before the tearing point is further controlled by another control unit. An apparatus for controlling the number of revolutions to zero by synchronizing an angle, a speed, and a position with a printing unit individually driven.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1998122375 DE19822375C2 (en) | 1998-05-19 | 1998-05-19 | Process for preventing technical damage to a web-fed rotary printing press |
| DE19822375.7 | 1998-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11320846A true JPH11320846A (en) | 1999-11-24 |
Family
ID=7868247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11105484A Pending JPH11320846A (en) | 1998-05-19 | 1999-04-13 | Damage preventing device for printing machine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH11320846A (en) |
| DE (1) | DE19822375C2 (en) |
| FR (1) | FR2778868B1 (en) |
| GB (1) | GB2337484B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002019086A (en) * | 2000-06-02 | 2002-01-22 | Man Roland Druckmas Ag | Method and apparatus for sensing web break |
| CN100376390C (en) * | 2006-03-16 | 2008-03-26 | 上海高斯印刷设备有限公司 | Intelligent photoelectric off-paper detection method and device |
| JP2021133656A (en) * | 2020-02-28 | 2021-09-13 | 三菱重工機械システム株式会社 | Printing machine and sheet winding prevention method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10027441A1 (en) | 2000-06-02 | 2001-12-06 | Roland Man Druckmasch | Method and device for preventing machine damage |
| DE10129889A1 (en) | 2000-07-14 | 2002-01-24 | Heidelberger Druckmasch Ag | Detecting paper strip break during transport through roller rotary printing machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3822497A1 (en) * | 1987-12-02 | 1989-10-19 | Kotterer Grafotec | DEVICE FOR PREVENTING MACHINE DAMAGE |
| DE4130679C2 (en) * | 1991-09-14 | 1994-02-24 | Roland Man Druckmasch | Device for preventing printing unit damage |
| US5678484A (en) * | 1993-03-25 | 1997-10-21 | Baldwin Web Controls | Anti-wrap device for a web press |
-
1998
- 1998-05-19 DE DE1998122375 patent/DE19822375C2/en not_active Expired - Fee Related
-
1999
- 1999-03-26 GB GB9907115A patent/GB2337484B/en not_active Expired - Fee Related
- 1999-04-13 JP JP11105484A patent/JPH11320846A/en active Pending
- 1999-05-18 FR FR9906288A patent/FR2778868B1/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002019086A (en) * | 2000-06-02 | 2002-01-22 | Man Roland Druckmas Ag | Method and apparatus for sensing web break |
| CN100376390C (en) * | 2006-03-16 | 2008-03-26 | 上海高斯印刷设备有限公司 | Intelligent photoelectric off-paper detection method and device |
| JP2021133656A (en) * | 2020-02-28 | 2021-09-13 | 三菱重工機械システム株式会社 | Printing machine and sheet winding prevention method |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9907115D0 (en) | 1999-05-19 |
| GB2337484B (en) | 2000-07-19 |
| FR2778868B1 (en) | 2000-12-01 |
| DE19822375C2 (en) | 2001-12-20 |
| GB2337484A (en) | 1999-11-24 |
| FR2778868A1 (en) | 1999-11-26 |
| DE19822375A1 (en) | 1999-11-25 |
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