JP2006341435A - Swing equipment of multicolor printing sheet-feed offset press - Google Patents

Swing equipment of multicolor printing sheet-feed offset press Download PDF

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JP2006341435A
JP2006341435A JP2005168063A JP2005168063A JP2006341435A JP 2006341435 A JP2006341435 A JP 2006341435A JP 2005168063 A JP2005168063 A JP 2005168063A JP 2005168063 A JP2005168063 A JP 2005168063A JP 2006341435 A JP2006341435 A JP 2006341435A
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claw
shaft
swing
sheet
bending
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JP4496132B2 (en
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Tetsuji Shiozaki
哲司 塩崎
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AKIYAMA INTERNAT KK
Akiyama International Co Ltd
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AKIYAMA INTERNAT KK
Akiyama International Co Ltd
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  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide swing equipment of a sheet-feed press which has a fan-out countermeasure having a simple and inexpensive structure. <P>SOLUTION: The swing equipment of the sheet-feed press which feeds a printing part with a sheet 3 sent from a sheet-sending means has a gripper means which has grippers 1 gripping and carrying the sheet 3, a gripper shaft 2 mounting the grippers 1 and a gripper pad-fitting plate and is supported by a swing shaft, a driving means which swings the swing shaft and the gripper means, and a curving means which curves the gripper shaft 2 and the gripper pad-fitting plate, corresponding to the swing of the swing shaft, and comprises cams and rollers. The gripper means grips the sheet 3 in a state wherein the gripper shaft 2 and the gripper pad-fitting plate are curved. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、多色刷枚葉オフセット印刷機のスイング装置に関し、特にファンアウトを減少することが可能な多色刷枚葉オフセット印刷機のスイング装置に関する。   The present invention relates to a swing device for a multicolor printing sheet offset printing press, and more particularly, to a swing device for a multicolor printing sheet offset printing press capable of reducing fan-out.

ファンアウト対策とは、印刷部にて印刷対象の枚葉紙に歪みが発生した場合に、印刷見当が正しく行なわれるための対策を言う。即ち、印刷時に水分や印刷加圧によって紙尻に延びや縮みが発生し、印刷見当がずれるのを防止するために、通常は前もって枚葉紙紙くわえ段階でずれ分を補正しておく対策である。   The fan-out countermeasure is a countermeasure for correctly performing printing registration when distortion occurs in a sheet to be printed in the printing unit. In other words, in order to prevent misalignment of the print due to moisture or printing pressure at the time of printing, it is usually a measure to correct the misalignment in advance at the sheet holding stage. is there.

このようなファンアウト対策の従来例として、駆動手段により、爪台および爪軸を搬送方向に撓ませる変位手段を設けた例が報告されている（特許文献１参照。）。
この例では、左右のフレーム間に設けられたスイング軸に支持レバーを設け、この支持レバーで爪軸と爪台を支持させる。さらにスイング軸内にロッドを設け、このロッドと爪軸と爪台の中央部との間に変位手段を設け、ロッドをスイング軸の外側まで伸ばして駆動手段に連結し、駆動手段でロッドを紙幅方向に往復運動させて変位手段を動かし、これで爪軸と爪台を撓ませた状態で紙を咥えるようにしてファンアウト対策を行なうようにしている。
特開平０７-５２３６１号公報 As a conventional example of such a fan-out countermeasure, there has been reported an example in which a displacement unit that deflects the claw base and the claw shaft in the transport direction is provided by a driving unit (see Patent Document 1).
In this example, a support lever is provided on a swing shaft provided between the left and right frames, and the claw shaft and the claw base are supported by the support lever. Furthermore, a rod is provided in the swing shaft, a displacement means is provided between the rod, the claw shaft, and the central part of the claw base, the rod is extended to the outside of the swing shaft and connected to the drive means, and the rod is connected to the paper width by the drive means. The displacement means is moved by reciprocating in the direction, and the fan-out countermeasure is taken by holding the paper in a state where the nail shaft and the nail base are bent.
Japanese Patent Application Laid-Open No. 07-52361

しかし、上述の従来例は、構造がかなり複雑であり、そのため、製造コストが高くなるという不都合があった。
本発明は、比較的簡単な方法でこの問題を解決して、構造が簡単で廉価なファンアウト対策を有する枚葉印刷機のスイング装置を提供することを課題とする。 However, the above-described conventional example has a disadvantage that the structure is considerably complicated and the manufacturing cost is increased.
An object of the present invention is to solve this problem by a relatively simple method and to provide a swing device for a sheet-fed printing press having a simple structure and a low-cost fan-out countermeasure.

上記課題を解決するため、本発明の請求項1に記載の発明は、送紙手段から送られて来た枚葉紙を印刷部に給紙する枚葉印刷機のスイング装置において、枚葉印刷機の左右のフレームの間に回動自在に支持されたスイング軸と、このスイング軸にその両端を支持レバーを介して支持され、給紙された紙を咥えて搬送する爪と爪軸および爪台取付板を有する咥え爪手段と、前記スイング軸および前記咥え爪手段を揺動させる駆動手段と、前記スイング軸の揺動に応じて前記爪軸および爪台取付板を湾曲させる湾曲手段とを具備し、前記咥え爪手段は前記爪軸および爪台取付板が湾曲した状態で紙咥えを行なうことを特徴とする。   In order to solve the above-mentioned problem, the invention according to claim 1 of the present invention provides a sheet-fed printing in a swing device of a sheet-fed printing machine that feeds a sheet fed from a sheet feeding unit to a printing unit. Swing shaft supported rotatably between the left and right frames of the machine, and a claw, a claw shaft, and a claw that are supported by the swing shaft at both ends via support levers and feed and feed the fed paper A gripping claw means having a base mounting plate, a driving means for swinging the swing shaft and the gripping claw means, and a bending means for bending the claw shaft and the claw base mounting plate according to the swing of the swing shaft. The gripping claw means performs paper gripping in a state where the claw shaft and the claw base mounting plate are curved.

上記課題を解決するため、本発明の請求項２に記載の発明は、送紙手段から送られて来た枚葉紙を印刷部に給紙する枚葉印刷機のスイング装置において、枚葉印刷機の左右のフレームの間に回動自在に支持されたスイング軸と、このスイング軸にその両端を支持レバーを介して支持され、給紙された紙を咥えて搬送する爪と爪軸および爪台取付板を有する咥え爪手段と、前記スイング軸および前記咥え爪手段を揺動させる駆動手段と、前記スイング軸の揺動に応じて前記スイング軸、爪軸および爪台取付板を湾曲させる湾曲手段とを具備し、前記咥え爪手段は前記スイング軸、爪軸および爪台取付板が湾曲した状態で紙咥えを行なうことを特徴とする。   In order to solve the above-mentioned problem, the invention according to claim 2 of the present invention is a sheet-fed printing in a swing device of a sheet-fed printing machine that feeds a sheet fed from a sheet feeding means to a printing unit. Swing shaft supported rotatably between the left and right frames of the machine, and a claw, a claw shaft, and a claw that are supported by the swing shaft at both ends via support levers and feed and feed the fed paper The claw means having a base mounting plate, the driving means for swinging the swing shaft and the gripping claw means, and the swing shaft, the claw shaft and the claw base mounting plate are curved in response to the swing of the swing shaft. And the gripping claw means grips the paper in a state where the swing shaft, the claw shaft and the claw base mounting plate are curved.

上記課題を解決するため、本発明の請求項３に記載の発明は、請求項１または請求項２に記載のスイング装置において、前記左右のフレームの間に支持部材を有し、前記湾曲手段は、前記スイング軸と前記爪軸および爪台取付板の間に設けられた支持ステーと、前記支持部材上の前記左右のフレームからの中央部との間に設けられていることを特徴とする。   In order to solve the above-mentioned problem, the invention according to claim 3 of the present invention is the swing device according to claim 1 or 2, wherein a support member is provided between the left and right frames, and the bending means is And a support stay provided between the swing shaft, the claw shaft and the claw base mounting plate, and a central portion from the left and right frames on the support member.

上記課題を解決するため、本発明の請求項４に記載の発明は、請求項１乃至請求項３のいずれか１項に記載のスイング装置において、前記湾曲手段は、前記支持ステーに設けられたコロと、前記支持部材の前記左右のフレームからの中央部に設けられたカムとを有することを特徴とする。   In order to solve the above-mentioned problem, according to a fourth aspect of the present invention, in the swing device according to any one of the first to third aspects, the bending means is provided on the support stay. It has a roller and the cam provided in the center part from the said left and right flame | frame of the said supporting member, It is characterized by the above-mentioned.

上記課題を解決するため、本発明の請求項５に記載の発明は、請求項１乃至請求項３のいずれか１項に記載のスイング装置において、前記湾曲手段は、前記支持ステーに設けられたカムと、前記支持部材の前記左右のフレームからの中央部に設けられたコロとを有することを特徴とする。   In order to solve the above-mentioned problem, according to a fifth aspect of the present invention, in the swing device according to any one of the first to third aspects, the bending means is provided on the support stay. It has a cam and the roller provided in the center part from the said right-and-left frame of the said supporting member, It is characterized by the above-mentioned.

上記課題を解決するため、本発明の請求項６に記載の発明は、請求項１乃至請求項５のいずれか１項に記載のスイング装置において、前記湾曲手段は湾曲量の調整手段を有することを特徴とする。   In order to solve the above-mentioned problem, according to a sixth aspect of the present invention, in the swing device according to any one of the first to fifth aspects, the bending means has a bending amount adjusting means. It is characterized by.

本発明は、以上のように構成したので、印刷対象の枚葉紙の受け渡しの際に、爪軸が湾曲した状態で爪が枚葉紙を咥え、印刷部に咥え代える時には爪軸が真直ぐな状態に戻るようにしているので、枚葉紙が印刷される際の水分や圧力によって紙尻が左右に伸びる現象を補正して適切なファンアウト対策を行なうことができ、多色印刷時の印刷見当のずれを補正して印刷品質を向上させることができる。また、湾曲手段をコロとカムを用いた比較的簡単な構成で実現しているので、装置を廉価に実現することができる。   Since the present invention is configured as described above, when the sheet to be printed is delivered, the nail shaft holds the sheet with the nail shaft curved, and the nail shaft is moved to the printing unit. Since it returns to a straight state, it can correct the phenomenon that the bottom of the paper stretches to the left and right due to moisture and pressure when the sheet is printed, so that appropriate fan-out measures can be taken. The print quality can be improved by correcting the misregistration of the print registration. Further, since the bending means is realized with a relatively simple configuration using a roller and a cam, the apparatus can be realized at low cost.

以下、本発明を図面に沿って詳細に説明する。   Hereinafter, the present invention will be described in detail with reference to the drawings.

図１は、本発明のスイング装置におけるファンアウトへの対応の原理を説明する説明図である。図１において、符号１は爪、符号２は爪軸、符号３は枚葉紙である。
本発明のスイング装置は、枚葉紙３を咥える段階では、図１（ａ）に示すように、爪軸２を湾曲させた状態で咥え、印刷部の渡胴へ受け渡すときには、図１（ｂ）に示すように、爪軸２を真直ぐに復旧させた状態で行なうようにする。これにより、枚葉紙３の紙尻が渡胴への受け渡し時まで伸ばされた状態になり、第２色目以降の多色印刷において、紙尻が左右に伸びる現象が起きて印刷の見当精度の向上が見込める。 FIG. 1 is an explanatory view for explaining the principle of dealing with fan-out in the swing device of the present invention. In FIG. 1, reference numeral 1 is a claw, reference numeral 2 is a claw shaft, and reference numeral 3 is a sheet.
As shown in FIG. 1A, the swing device according to the present invention holds the nail shaft 2 in a curved state as shown in FIG. As shown to 1 (b), it carries out in the state which restored the nail | claw axis | shaft 2 straightly. As a result, the paper bottom of the sheet 3 is stretched until it is delivered to the transfer cylinder. In multicolor printing after the second color, the phenomenon that the paper bottom extends to the left and right occurs, and the printing registration accuracy is increased. Improvement can be expected.

図２は、本発明にかかるスイング装置の一実施の形態の正面図である。図３は、本発明にかかるスイング装置の一実施の形態の分解斜視図である。図２及び図３において、符号１は爪、符号２は爪軸、符号３は枚葉紙、符号４は爪台、符号６及び７は左右の支持ステー、符号８はコロ、符号９はカム、符号１０は引張りばね、符号１１はスイング軸、符号１２はファンアウト対応手段としての支持ステー、符号１３はファンアウト対応手段としてのコロ、符号１４は爪台取付板、符号２１はファンアウト対応手段としてのカム、符号２９及び３０は左右の本体フレーム、符号３１及び３２は軸受けである。   FIG. 2 is a front view of an embodiment of the swing device according to the present invention. FIG. 3 is an exploded perspective view of an embodiment of the swing device according to the present invention. 2 and 3, reference numeral 1 is a claw, reference numeral 2 is a claw shaft, reference numeral 3 is a sheet, reference numeral 4 is a claw base, reference numerals 6 and 7 are left and right support stays, reference numeral 8 is a roller, reference numeral 9 is a cam , 10 is a tension spring, 11 is a swing shaft, 12 is a support stay as a fan-out countermeasure, 13 is a roller as a fan-out countermeasure, 14 is a claw base mounting plate, and 21 is a fan-out Cams as means, reference numerals 29 and 30 are left and right body frames, and reference numerals 31 and 32 are bearings.

図２において、スイング軸１１は左右の本体フレーム２９、３０に、軸受３１、３２を介して回動自在に取り付けられている。爪１を取り付けた爪軸２、及び爪台４を取り付けた爪台取付板１４は、左右の支持ステー６、７を介してスイング軸１１に支持されている。また、ファンアウト対応手段としての支持ステー１２が左右の支持ステー６、７のほぼ中央部分に設けられている。支持ステー１２の下部にはファンアウト対応用のコロ１３が取り付けられている。コロ８は、爪軸２の端部に固定したレバー８ａに取り付けられている。カム９は本体フレーム２９に固定されており、引張りばね１０によりコロ８と常時当接している。コロ８とカム９とは爪軸２の回転動作と爪１の開閉動作を制御する。即ち、コロ８がカム９の形状に沿って移動することで、その間に挟まれた爪軸２が回動しその回動動作に伴って爪１が開閉動作する。なお、図２で矢印Ａは枚葉紙３の進行方向を示している。   In FIG. 2, the swing shaft 11 is rotatably attached to the left and right main body frames 29 and 30 via bearings 31 and 32. The claw shaft 2 to which the claw 1 is attached and the claw base mounting plate 14 to which the claw base 4 is attached are supported by the swing shaft 11 via the left and right support stays 6 and 7. Further, a support stay 12 as a fan-out countermeasure means is provided at a substantially central portion of the left and right support stays 6 and 7. A roller 13 for fan-out is attached to the lower part of the support stay 12. The roller 8 is attached to a lever 8 a fixed to the end of the claw shaft 2. The cam 9 is fixed to the main body frame 29 and is always in contact with the roller 8 by the tension spring 10. The roller 8 and the cam 9 control the rotation operation of the claw shaft 2 and the opening / closing operation of the claw 1. That is, when the roller 8 moves along the shape of the cam 9, the claw shaft 2 sandwiched between the rollers 8 rotates, and the claw 1 opens and closes with the rotation. In FIG. 2, an arrow A indicates the traveling direction of the sheet 3.

図４は、本実施の形態にかかるスイング装置のファンアウト対応手段の側面図で、スイング軸１１のほぼ中央部分から支持ステー１２の側面を見た図である。
先にも述べたように、スイング軸１１は左右の本体フレーム２９、３０に回動自在に取り付けられており、このスイング軸１１の左右の本体フレーム２９、３０からほぼ等間隔の中央部分に支持ステー１２が設けられている。この支持ステー１２の端部にはファンアウト対応手段としてのコロ１３が、また、軸受けを介して爪軸２が、さらに、爪台取付板１４を介して爪台４が取り付けられている。スイング軸１１には、左の本体フレーム２９の外側から、その端部１１ａとカムやレバーを介して印刷機本体からの動力が伝えられ、それによって往復回動するように構成されているが、動力伝達系の詳細はここでは省略した。このとき、支持ステー１２の端部に設けられたコロ１３は、図４で示すように爪１が枚葉紙３を咥える時点の１３ａ点と枚葉紙３を受け渡す時点の１３ｂ点の間を往復移動する。 FIG. 4 is a side view of the fan-out support means of the swing device according to the present embodiment, and is a view of the side surface of the support stay 12 from the substantially central portion of the swing shaft 11.
As described above, the swing shaft 11 is rotatably attached to the left and right main body frames 29 and 30, and is supported at the center portion of the swing shaft 11 at substantially equal intervals from the left and right main body frames 29 and 30. A stay 12 is provided. At the end of the support stay 12, a roller 13 as a fan-out countermeasure means, a claw shaft 2 via a bearing, and a claw base 4 via a claw base mounting plate 14 are attached. The swing shaft 11 is configured so that power from the printing press main body is transmitted from the outside of the left main body frame 29 through its end 11a and a cam or lever, and thereby reciprocally rotates. Details of the power transmission system are omitted here. At this time, the roller 13 provided at the end of the support stay 12 has a point 13a when the claw 1 grips the sheet 3 and a point 13b when the sheet 3 is delivered as shown in FIG. Move back and forth between them.

一方、左右の本体フレーム２９、３０ととともにこのスイング装置のフレーム枠の一部を構成し、左右の本体フレーム２９、３０を連結するステーを構成する支持部材２２が、左右の本体フレーム２９、３０に固定されている。この支持部材２２には、ファンアウトフレーム２３が取り付けられていて、このファンアウトフレーム２３にはファンアウト対応手段としてのカム２１が搭載されている。   On the other hand, the support member 22 that constitutes a part of the frame frame of the swing device together with the left and right main body frames 29 and 30 and constitutes a stay that connects the left and right main body frames 29 and 30 is provided to the left and right main body frames 29 and 30. It is fixed to. A fan-out frame 23 is attached to the support member 22, and a cam 21 as a fan-out countermeasure is mounted on the fan-out frame 23.

この機構が枚葉紙を搬送する動作は、従来の紙搬送機構と概ね同じなので、ここでは詳しく説明しないが、スイング装置がスイング軸１１を中心に回動し、支持ステー１２が枚葉紙３を印刷部に渡す開放位置から戻って、紙送りローラから送り出された枚葉紙３を加える位置まで回動すると、支持ステー１２の端部に設けられたコロ１３は図３の１３ｂ点から１３ａ点に移動し、その間でファンアウトフレーム２３に搭載されているカム２１に当接する。コロ１３とカム２１とが当接した後、さらにスイング軸１１の回動と支持ステー１２の回動が進むと、カム２１がコロ１３を押し込むため、スイング軸１１とそれに取り付けられている爪軸２と爪台取付板１４が湾曲し、爪１の配列が図１の（ｂ）に示す位置に変形され、この状態で紙咥えが行なわれる。   The operation of transporting the sheet by this mechanism is substantially the same as that of the conventional sheet transport mechanism, and therefore will not be described in detail here. However, the swing device rotates about the swing shaft 11 and the support stay 12 moves the sheet 3. When the roller 13 is returned from the open position where it is transferred to the printing unit and rotated to the position where the sheet 3 fed from the paper feed roller is added, the roller 13 provided at the end of the support stay 12 is moved from the point 13b in FIG. It moves to a point and abuts against the cam 21 mounted on the fan-out frame 23 in the meantime. After the roller 13 and the cam 21 come into contact with each other, when the swing shaft 11 and the support stay 12 further rotate, the cam 21 pushes the roller 13 into the swing shaft 11 and the claw shaft attached thereto. 2 and the claw base mounting plate 14 are curved, and the arrangement of the claws 1 is deformed to the position shown in FIG. 1B, and paper holding is performed in this state.

カム２１はカム軸２７を中心に回動し、その高さは、ファンアウト調整軸２４、２５の回転によって調整される。図５にこのファンアウト調整軸２４、２５の調整機構が示されている。左の本体フレーム２９の外側に突出したつまみ２６を操作し、２本の調整軸２４、２５と５個の歯車を動かしてカム２１を上下させてその高さを微調する。これによってスイング軸１１の湾曲量を調整することができ、紙尻の伸びに微妙に対応して印刷見当の精度を向上することができる。この調整動作は、印刷機の運転中でも実行可能である。   The cam 21 rotates about the cam shaft 27 and its height is adjusted by the rotation of the fan-out adjusting shafts 24 and 25. FIG. 5 shows an adjusting mechanism for the fan-out adjusting shafts 24 and 25. The knob 26 protruding to the outside of the left main body frame 29 is operated to move the two adjusting shafts 24 and 25 and the five gears to move the cam 21 up and down to finely adjust its height. As a result, the amount of bending of the swing shaft 11 can be adjusted, and the accuracy of printing registration can be improved in response to the elongation of the paper bottom. This adjustment operation can be executed even during operation of the printing press.

本発明のスイング装置は、このように、紙咥え時に、ファンアウトフレーム２３に搭載されたカム２１をスイング軸１１の支持ステー１２に設けられたコロ１３に当接させることで、スイング軸１１を湾曲させるとともに、スイング軸１１に取り付けられている爪軸２や爪台取付板１４をも湾曲させる。これによって枚葉紙３が印刷部に咥え代えされるときまで、爪１が咥えた枚葉紙３の紙尻が引張られて紙尻が左右に伸びるので、印刷見当のずれを補正することができる。   In this way, the swing device of the present invention makes the swing shaft 11 come into contact with the roller 13 provided on the support stay 12 of the swing shaft 11 by bringing the cam 21 mounted on the fan-out frame 23 into contact with the roller 13 at the time of paper holding. And the claw shaft 2 and the claw base mounting plate 14 attached to the swing shaft 11 are also bent. Until this time, when the sheet 3 is replaced by the printing unit, the sheet bottom of the sheet 3 gripped by the nail 1 is pulled and the sheet bottom extends left and right. Can do.

この実施の形態では、支持ステー１２にコロ１３を、ファンアウトフレーム２３にカム２１を設けたが、これを逆に支持ステー１２側にカムを、ファンアウトフレーム２３側にコロを設ける構成にしても、同様な機能を実現することができるのはいうまでもない。
この実施の形態では、また、支持ステー１２をスイング軸１１に固定して、コロ１３とカム２１の当接によってスイング軸１１と爪軸２と爪台が同時に湾曲するようにしたが、支持ステー１２が所定の範囲内で揺動可能な程度にスイング軸１１にルーズに支持されるようにすることによって、コロ１３とカム２１の当接の際にスイング軸１１は湾曲せず、爪軸２と爪台だけが同時に湾曲するような構成としてスイング軸１１の機械的な負担を低減することもできる。 In this embodiment, the roller 13 is provided on the support stay 12 and the cam 21 is provided on the fan-out frame 23. On the contrary, the cam is provided on the support stay 12 side and the roller is provided on the fan-out frame 23 side. However, it goes without saying that similar functions can be realized.
In this embodiment, the support stay 12 is fixed to the swing shaft 11, and the swing shaft 11, the claw shaft 2, and the claw base are simultaneously curved by the contact between the roller 13 and the cam 21. The swing shaft 11 is loosely supported by the swing shaft 11 to the extent that it can swing within a predetermined range, so that the swing shaft 11 is not curved when the roller 13 and the cam 21 come into contact with each other. As a configuration in which only the claw base is curved at the same time, the mechanical burden on the swing shaft 11 can be reduced.

上述のように、本実施の形態のスイング装置は、左右のフレームからほぼ等距離の中央部分に設けられたコロ１３とカム２１とからなる湾曲手段を用いた比較的簡単な構成によって、印刷対象の枚葉紙３の受け渡しの際に、爪軸２が湾曲した状態で爪１が枚葉紙3を咥え、印刷部に咥え代える時には爪軸２が真直ぐな状態に戻るようにしている。これにより、比較的廉価に且つ効果的に、枚葉紙３が印刷される際の水分や圧力によって紙尻が左右に伸びるようにすることができ、これによって、多色印刷時の印刷見当のずれを補正して適切なファンアウト対策を実現し、印刷品質を向上させることができる。また、カム２１、ファンアウトフレーム２３を設ける支持部材２２として本体フレームの一部を用いているので、その分廉価に構成することができる。
以上に述べた本実施の形態でのコロとカムを用いた湾曲手段に代えて、スイング軸の揺動に同期して回動する小型の回転機器やスライド機構などを使った湾曲手段を用いても同様な効果を示す構成が可能になる。 As described above, the swing device according to the present embodiment has a relatively simple configuration using the bending means including the rollers 13 and the cams 21 provided at the central portion at approximately the same distance from the left and right frames, and thus the printing target. When the sheet 3 is delivered, the nail 1 holds the sheet 3 while the nail shaft 2 is curved, and the nail shaft 2 returns to a straight state when the nail 1 is replaced by the printing unit. . As a result, the bottom of the paper can be extended to the left and right by moisture and pressure when the sheet 3 is printed relatively inexpensively and effectively. It is possible to correct misalignment and implement appropriate fanout measures to improve print quality. Further, since a part of the main body frame is used as the support member 22 for providing the cam 21 and the fan-out frame 23, the cost can be reduced accordingly.
Instead of the bending means using the roller and cam in the present embodiment described above, a bending means using a small rotating device or a slide mechanism that rotates in synchronization with the swing of the swing shaft is used. Can be configured to exhibit similar effects.

本発明のスイング装置は以上に説明したように、枚葉紙の多色印刷時に印刷見当のずれをなくして印刷品質を向上することができるので、このような印刷業界で広く用いて効果を上げることができる。   As described above, the swing device of the present invention can improve printing quality by eliminating printing misregistration during multi-color printing of sheets, so that it is widely used in such a printing industry and is effective. be able to.

本発明のスイング装置におけるファンアウトへの対応の原理を説明する説明図である。It is explanatory drawing explaining the principle of a response | compatibility to the fan-out in the swing apparatus of this invention. 本発明にかかるスイング装置の一実施の形態の正面図である。1 is a front view of an embodiment of a swing device according to the present invention. 図２の実施の形態の分解斜視図である。FIG. 3 is an exploded perspective view of the embodiment of FIG. 2. 図２の実施の形態にかかるスイング装置のファンアウト対応手段の側面図である。It is a side view of the fan out corresponding | compatible means of the swing apparatus concerning embodiment of FIG. 図２の実施の形態に用いられるファンアウト調整機構の構成図である。It is a block diagram of the fan-out adjustment mechanism used for embodiment of FIG.

符号の説明Explanation of symbols

１ 爪
２ 爪軸
３ 枚葉紙
４ 爪台
６、７ 支持ステー
８ コロ
９ カム
１０ 引張りばね
１１ スイング軸
１２ 支持ステー
１３ ファンアウト対応用コロ
１４ 爪台取付板
２１ ファンアウト対応用カム
２２ 支持部材
２３ ファンアウトフレーム
２４、２５ ファンアウト調整軸
２６ つまみ
２７ カム軸
２９、３０ 本体フレーム
３１、３２ 軸受け DESCRIPTION OF SYMBOLS 1 Claw 2 Claw shaft 3 Sheet paper 4 Claw base 6, 7 Support stay 8 Roller 9 Cam 10 Tension spring 11 Swing shaft 12 Support stay 13 Roll-out support roller 14 Claw base mounting plate 21 Fan-out support cam 22 Support member 23 Fan-out frame 24, 25 Fan-out adjustment shaft 26 Knob 27 Cam shaft 29, 30 Body frame 31, 32 Bearing

Claims (6)

送紙手段から送られて来た枚葉紙を印刷部に給紙する枚葉印刷機のスイング装置において、
枚葉印刷機の左右のフレームの間に回動自在に支持されたスイング軸と、
このスイング軸にその両端を支持レバーを介して支持され、給紙された紙を咥えて搬送する爪と爪軸および爪台取付板を有する咥え爪手段と、
前記スイング軸および前記咥え爪手段を揺動させる駆動手段と、
前記スイング軸の揺動に応じて前記爪軸および爪台取付板を湾曲させる湾曲手段とを具備し、
前記咥え爪手段は前記爪軸および爪台取付板が湾曲した状態で紙咥えを行なうことを特徴とするスイング装置。 In a swing device of a sheet-fed printing machine that feeds a sheet fed from a sheet feeding means to a printing unit,
A swing shaft rotatably supported between the left and right frames of the sheet-fed printing press;
Both ends of the swing shaft are supported via support levers, and a claw means having a claw and a claw shaft and a claw base mounting plate for feeding and feeding the fed paper;
Drive means for swinging the swing shaft and the barb means;
Bending means for bending the claw shaft and the claw base mounting plate according to the swing of the swing shaft,
The swing device according to claim 1, wherein the gripping claw means grips the paper while the claw shaft and the claw base mounting plate are curved. 送紙手段から送られて来た枚葉紙を印刷部に給紙する枚葉印刷機のスイング装置において、
枚葉印刷機の左右のフレームの間に回動自在に支持されたスイング軸と、
このスイング軸にその両端を支持レバーを介して支持され、給紙された紙を咥えて搬送する爪と爪軸および爪台取付板を有する咥え爪手段と、
前記スイング軸および前記咥え爪手段を揺動させる駆動手段と、
前記スイング軸の揺動に応じて前記スイング軸、爪軸および爪台取付板を湾曲させる湾曲手段とを具備し、
前記咥え爪手段は前記スイング軸、爪軸および爪台取付板が湾曲した状態で紙咥えを行なうことを特徴とするスイング装置。 In a swing device of a sheet-fed printing machine that feeds a sheet fed from a sheet feeding means to a printing unit,
A swing shaft rotatably supported between the left and right frames of the sheet-fed printing press;
Both ends of the swing shaft are supported via support levers, and a claw means having a claw and a claw shaft and a claw base mounting plate for feeding and feeding the fed paper;
Drive means for swinging the swing shaft and the barb means;
Bending means for bending the swing shaft, the claw shaft and the claw base mounting plate according to the swinging of the swing shaft,
The swing device according to claim 1, wherein the gripping claw means grips the paper while the swing shaft, the claw shaft, and the claw base mounting plate are curved. 前記左右のフレームの間に支持部材を有し、前記湾曲手段は、前記スイング軸と前記爪軸および爪台取付板の間に設けられた支持ステーと、前記支持部材上の前記左右のフレームからの中央部との間に設けられていることを特徴とする請求項１または請求項２に記載のスイング装置。 A support member is provided between the left and right frames, and the bending means includes a support stay provided between the swing shaft, the claw shaft, and the claw base mounting plate, and a center from the left and right frames on the support member. The swing device according to claim 1, wherein the swing device is provided between the swing device and the unit. 前記湾曲手段は、前記支持ステーに設けられたコロと、前記支持部材の前記左右のフレームからの中央部に設けられたカムとを有することを特徴とする請求項１乃至請求項３のいずれか１項に記載のスイング装置。 The said bending means has the roller provided in the said support stay, and the cam provided in the center part from the said left and right flame | frame of the said supporting member, The any one of Claim 1 thru | or 3 characterized by the above-mentioned. The swing device according to item 1. 前記湾曲手段は、前記支持ステーに設けられたカムと、前記支持部材の前記左右のフレームからの中央部に設けられたコロとを有することを特徴とする請求項１乃至請求項３のいずれか１項に記載のスイング装置。 The said bending means has the cam provided in the said support stay, and the roller provided in the center part from the said left and right flame | frame of the said supporting member, The Claim 1 thru | or 3 characterized by the above-mentioned. The swing device according to item 1. 前記湾曲手段は湾曲量の調整手段を有することを特徴とする請求項１乃至請求項５のいずれか１項に記載のスイング装置。
6. The swing device according to claim 1, wherein the bending unit includes a bending amount adjusting unit.
JP2005168063A 2005-06-08 2005-06-08 Swing device for multicolor printing sheet offset printing machine Active JP4496132B2 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02200438A (en) * 1988-12-03 1990-08-08 Heidelberger Druckmas Ag Device for adjusting registering of finish print of sheet in sheet-fed rotary press
JPH0752361A (en) * 1993-08-12 1995-02-28 Komori Corp Paper carriage equipment of sheet-feed press
JPH08104445A (en) * 1994-09-28 1996-04-23 Heidelberger Druckmas Ag Device for correction of register and tension removal for sheet paper under tensile condition for paper feeder for leaf paper rotary press

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02200438A (en) * 1988-12-03 1990-08-08 Heidelberger Druckmas Ag Device for adjusting registering of finish print of sheet in sheet-fed rotary press
JPH0752361A (en) * 1993-08-12 1995-02-28 Komori Corp Paper carriage equipment of sheet-feed press
JPH08104445A (en) * 1994-09-28 1996-04-23 Heidelberger Druckmas Ag Device for correction of register and tension removal for sheet paper under tensile condition for paper feeder for leaf paper rotary press

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