JP4426388B2

JP4426388B2 - Printer

Info

Publication number: JP4426388B2
Application number: JP2004188024A
Authority: JP
Inventors: 茂生藤原; 尚村上
Original assignee: Ryobi Ltd
Current assignee: Ryobi Ltd
Priority date: 2004-06-25
Filing date: 2004-06-25
Publication date: 2010-03-03
Anticipated expiration: 2024-06-25
Also published as: JP2006007597A

Description

本発明は印刷機に関し、特に、給紙部と排紙部との間に配置されて、刷版を版胴に設けたくわえクランプ装置に向けて供給して版胴に巻付けるようにした印刷部の構造に関する。 The present invention relates to a printing machine, and in particular, a printing unit that is disposed between a paper feeding unit and a paper discharging unit and supplies a printing plate to a holding clamp device provided on the plate cylinder so as to be wound around the plate cylinder. Related to the structure.

一般に枚葉印刷機は、給紙部と排紙部との間に印刷部を有している。この印刷部は、本体カバーに内装された版胴に刷版を巻付けて印刷を行う部分である。該印刷機は、版胴に刷版を巻付けるために、版胴に設けたくわえクランプ装置に手動で挿入した刷版を自動で巻付ける刷版巻付け装置を備えるのが一般的である。しかし近年では、作業者が刷版（新版）を所定位置にセットした後に、その刷版をくわえクランプ装置に向けて自動的に供給する給版装置を備える印刷機が提案されている。 In general, a sheet-fed printing press has a printing unit between a paper feeding unit and a paper discharge unit. The printing unit is a part that performs printing by winding a printing plate around a plate cylinder built in the main body cover. The printing machine is generally provided with a printing plate winding device for automatically winding a printing plate manually inserted into a holding clamp device provided in the printing drum in order to wind the printing plate around the printing drum. However, in recent years, a printing machine has been proposed that includes a plate feeding device that automatically supplies a printing plate to a clamp device after an operator sets a printing plate (new plate) at a predetermined position.

給版装置として、本体カバーの前面に配置した刷版案内板に刷版（版裏面）を吸引する吸引器を有したものがある。この場合、吸引器で刷版を吸引した状態で吸引器をくわえクランプ装置側に向けて直線的に移動させることで刷版をくわえクランプ装置へ供給し、くわえクランプ装置でもって刷版のくわえ側端部をくわえさせた状態で版胴を回転させることで刷版を版胴に巻付ける。なお、刷版をくわえクランプ装置に向けて供給するにあたって、くわえクランプ装置に軸心方向に離間して配設させた位置決め部（突起）に対して、刷版のくわえ側端部に形成した被位置決め部（切欠）を係止させることで、版胴に対する刷版の位置決めを行うことが行われている。 As a plate feeding device, there is one having a suction device for sucking a printing plate (plate back surface) to a printing plate guide plate arranged on the front surface of a main body cover. In this case, the suction plate is sucked by the suction device, and the suction plate is moved linearly toward the clamp device side to supply the plate to the clamp device. The plate is wound around the plate cylinder by rotating the plate cylinder with the end held. When the printing plate is supplied to the holding clamp device, the covering plate formed on the holding side end portion of the printing plate with respect to the positioning portion (protrusion) disposed in the holding clamping device so as to be spaced apart in the axial direction. The positioning of the printing plate with respect to the plate cylinder is performed by locking the positioning portion (notch).

ところで、刷版をくわえクランプ装置に向けて移動させた場合、刷版に折れ曲がりなどがあると、刷版のくわえ側端部がくわえクランプ装置に挿入することができず、したがって位置決め部に被位置決め部が位置決めされない。この場合、くわえクランプ装置で刷版のくわえ側端部をくわえることができず、刷版を版胴に巻付けることができないといった工程上の不都合が生じてしまう。そこで、くわえクランプ装置に刷版のくわえ側端部が到着したか否かの検出を、版胴側に設けたセンサによって行うものがある（特許文献１参照）。 By the way, when the printing plate is moved toward the gripping device, if the printing plate is bent, the end of the printing plate cannot be inserted into the gripping device. The part is not positioned. In this case, it is impossible to hold the end portion of the printing plate on the holding side by the holding clamp device, and there arises a process inconvenience that the printing plate cannot be wound around the plate cylinder. Therefore, there is a technique that detects whether or not the holding side end of the printing plate has arrived at the holding clamp device using a sensor provided on the plate cylinder side (see Patent Document 1).

特開２０００−１９０４６０号公報JP 2000-190460 A

上記従来の印刷機では、版胴のくわえクランプ装置に刷版のくわえ側端部が到着したことを、センサからの信号を受けてくわえクランプ装置の駆動制御を行う。しかし、この種の印刷機では、印刷工程において印刷用インキや溶剤が用いられることから、版胴にもこれらインキや溶剤が付着することになる。そして、センサは版胴側に設けられているから、インキや溶剤がセンサに付着し易く、そうなると、版胴に刷版のくわえ側端部が到着したことを検出する精度が低下し、刷版のくわえ側端部がくわえクランプ装置に到着していたとしてもセンサがこれを検出できず、したがって、くわえクランプ装置の駆動制御が行われず、信頼性が低下するといった課題がある。また、上記従来の印刷機では、版胴に設けられたセンサの電気信号を取出す構成であるために、版胴軸部にブラシ方式による接触型接点構造の信号伝達手段、或いは版胴と版胴外部に、予め定められた版胴の回転角度において対向する位置に一対の非接触の信号伝達手段を設ける必要があり構造が複雑になっていた。 In the above-described conventional printing press, the gripper clamping device is controlled by receiving a signal from the sensor that the gripper side end of the printing plate has arrived at the gripper clamping device of the plate cylinder. However, since this type of printing machine uses printing ink and solvent in the printing process, these ink and solvent also adhere to the plate cylinder. And since the sensor is provided on the plate cylinder side, ink and solvent are likely to adhere to the sensor, and when this happens, the accuracy of detecting that the end of the holding plate side has arrived at the plate cylinder decreases, and the printing plate Even if the end of the holding side has arrived at the holding clamp device, the sensor cannot detect this, so that the driving control of the holding clamp device is not performed, and there is a problem that the reliability is lowered. In addition, since the conventional printing machine is configured to take out the electrical signal of the sensor provided on the plate cylinder, the signal transmission means of the contact type contact structure by the brush method on the plate cylinder shaft, or the plate cylinder and the plate cylinder The structure is complicated because it is necessary to provide a pair of non-contact signal transmission means on the outside at positions facing each other at a predetermined rotation angle of the plate cylinder.

そこで本発明は、簡単な構造であっても、刷版を版胴に向けて給版した際に、版胴側に設けた位置決め部に対して刷版に設けた被位置決め部が位置決めされたかどうかを、インキや溶剤に影響されることなく知ることができ、かつ所定の検出精度を確保することで、給版動作の信頼性を向上し得る印刷機の提供を課題とする。 Therefore, even if the present invention has a simple structure, when the printing plate is fed toward the plate cylinder, the positioning portion provided on the printing plate is positioned relative to the positioning portion provided on the plate cylinder side. It is an object of the present invention to provide a printing machine that can know whether or not it is affected by ink and solvent and can improve the reliability of the plate feeding operation by ensuring a predetermined detection accuracy.

本発明は、刷版を版胴に向けて給版するための給版装置が設けられ、この給版装置は、刷版を案内する刷版案内板と、刷版を刷版案内板に沿って移動させるための伸縮装置とを含み、刷版案内板を版胴に向けた給版姿勢で伸縮装置を駆動して刷版を移動させることで、版胴側に設けた位置決め部に、刷版のくわえ側端部に設けた被位置決め部を位置決めする印刷機であって、伸縮装置の伸縮量を検出する検出装置が設けられ、この検出装置からの検出信号に応じて位置決め部に被位置決め部が位置決めされたか否かを判断する機能を有する制御装置が設けられ、該制御装置は、伸縮装置の駆動開始から所定時間経過後に、予め設定されている伸縮量を検出装置が検出し、かつその検出状態が継続する場合に位置決め部に被位置決め部が位置決めされた状態であると判断して、くわえクランプ装置の駆動部に、刷版のくわえ側端部をくわえるよう駆動信号を出力する機能を有したことを特徴としている。
The present invention is provided with a plate feeding device for feeding the printing plate toward the plate cylinder. The plate feeding device includes a printing plate guide plate for guiding the printing plate, and the printing plate along the printing plate guide plate. The plate guide plate is moved to the positioning portion provided on the plate cylinder side by moving the plate by driving the expansion and contraction device in a plate feeding posture with the plate guide plate facing the plate cylinder. A printing machine for positioning a positioned portion provided at an end of the plate on the holding side, provided with a detecting device for detecting the amount of expansion / contraction of the expansion / contraction device. A control device having a function of determining whether or not the part has been positioned, the control device detects a preset expansion / contraction amount after a predetermined time has elapsed from the start of driving of the expansion / contraction device, and When the detected state continues, the positioned part is positioned on the positioning part. It is determined that the state of being, on the driving end of the gripper clamping device is characterized by having a function of outputting a driving signal so as to apply the leading edge of the plate.

上記構成の印刷機のように、位置決め部に被位置決め部が位置決めされたか否かを検出する検出装置を設け、この検出装置を、伸縮装置の伸縮量（移動量）を検出するものとすることで、検出装置は、インキや溶剤に影響されることなく所定の検出精度を長期にわたって確保することができ、したがって従来の印刷機に比べて給版動作の信頼性を顕著に向上させることができる。そして制御装置は、場合によっては、検出装置からの検出信号に応じて判断した位置決め部に対する被位置決め部の位置決めの良否を報知し、あるいはくわえクランプ装置を駆動しないよう制御する。また、従来の印刷機では、版胴に設けられたセンサの電気信号を取出す構成であるために、版胴軸部に信号伝達手段を設ける必要があり構造が複雑になっていた。しかし本発明は、刷版を刷版案内板に沿って移動させるための伸縮装置の伸縮量を検出することで、位置決め部に被位置決め部が位置決めされたか否かを判断する構成であるから、上記のような信号伝達手段が不要になり、その分だけ構造を簡素化できる。 Like the printing machine having the above-described configuration, the positioning unit is provided with a detection device that detects whether or not the positioned portion is positioned, and this detection device detects the expansion / contraction amount (movement amount) of the expansion / contraction device. Thus, the detection device can ensure a predetermined detection accuracy over a long period of time without being affected by ink or solvent, and therefore can significantly improve the reliability of the plate feeding operation as compared with the conventional printing press. . In some cases, the control device notifies whether or not the positioning portion is positioned with respect to the positioning portion determined according to the detection signal from the detection device, or controls the clamp device not to be driven. Further, since the conventional printing machine is configured to take out an electrical signal of a sensor provided on the plate cylinder, it is necessary to provide a signal transmission means on the plate cylinder shaft, and the structure is complicated. However, the present invention is configured to determine whether or not the positioned portion is positioned in the positioning portion by detecting the expansion and contraction amount of the expansion and contraction device for moving the printing plate along the plate guide plate. The signal transmission means as described above becomes unnecessary, and the structure can be simplified accordingly.

上記のように、伸縮装置の駆動開始から所定時間経過後に、予め設定されている伸縮量を検出装置が検出し、かつその検出状態が継続する場合では、伸縮量が変わらないことから、刷版が版胴に向けて給版された後に、位置決め部に被位置決め部が位置決めされた状態にあることになり、したがって制御装置は、版胴に対する刷版の位置決めが確実に行われたと判断して、くわえクランプ装置の駆動部に駆動信号を出力し、これによって刷版のくわえ側端部がくわえクランプ装置に把持され、版胴の回転によって刷版を版胴に巻付けることができる。 As described above, when the detection device detects a preset expansion / contraction amount after the elapse of a predetermined time from the start of driving of the expansion / contraction device, and the detection state continues, the expansion / contraction amount does not change. After the plate is fed toward the plate cylinder, the positioned portion is in a state of being positioned in the positioning portion. Therefore, the control device determines that the printing plate is reliably positioned with respect to the plate cylinder. Then, a drive signal is output to the drive unit of the holding clamp device, whereby the holding side end portion of the printing plate is held by the holding clamp device, and the printing plate can be wound around the printing drum by the rotation of the printing drum.

なお、制御装置は、伸縮装置の駆動開始から所定時間経過後に、予め設定されている伸縮量を検出装置が検出し、かつその検出状態が継続する場合以外は、位置決め部に被位置決め部が位置決めされた状態にないと判断して、くわえクランプ装置の駆動部に駆動信号を出力しない。具体的には、伸縮装置の駆動開始から所定時間経過後に、予め設定されている伸縮量を検出装置が検出しない場合、伸縮装置の駆動開始から所定時間経過後に、予め設定されている伸縮量を検出装置が検出し、かつその後、予め設定されている伸縮量を検出しなくなった場合がある。 Note that the control device positions the positioned portion in the positioning portion except when the detection device detects a preset expansion / contraction amount after a predetermined time has elapsed from the start of driving of the expansion device and the detection state continues. It is determined that the state has not been reached, and no drive signal is output to the drive unit of the clamp apparatus. Specifically, when the detection device does not detect a preset expansion / contraction amount after the elapse of a predetermined time since the start of driving of the expansion / contraction device, the preset expansion / contraction amount is set after the elapse of the predetermined time after the start of driving of the expansion / contraction device. There is a case where the detection device detects and thereafter the preset amount of expansion / contraction is not detected.

本発明の印刷機によれば、伸縮装置の伸縮量によって版胴の位置決め部に刷版の被位置決め部が位置決めされたかどうかを判断するので、印刷に使用するインキや溶剤の付着とは無関係に、くわえクランプ装置に刷版のくわえ側端部が位置決めされたかどうかを確実に検出することができる。 According to the printing machine of the present invention, it is determined whether or not the positioning portion of the printing plate has been positioned in the positioning portion of the plate cylinder by the amount of expansion and contraction of the expansion and contraction device, so regardless of the adhesion of ink or solvent used for printing. It is possible to reliably detect whether or not the holding side end portion of the printing plate is positioned in the holding clamp device.

以下、本発明の実施形態に係る印刷機を、枚葉印刷機を例に図面に基づいて説明する。図１および図２は枚葉印刷機の印刷部の概略側面断面図、図３は給版装置の構造を示す刷版案内板の背面図、図４は下流側前板の正面図、図５は給版装置の構造を示す側面断面図、図６は図３の一部破断拡大図、図７は検出装置およびシリンダ装置の断面図である。 Hereinafter, a printing press according to an embodiment of the present invention will be described with reference to the drawings, taking a sheet-fed printing press as an example. 1 and 2 are schematic side cross-sectional views of a printing unit of a sheet-fed printing machine, FIG. 3 is a rear view of a plate guide plate showing the structure of a plate feeding device, FIG. 4 is a front view of a downstream front plate, and FIG. Is a side sectional view showing the structure of the plate feeding device, FIG. 6 is a partially broken enlarged view of FIG. 3, and FIG. 7 is a sectional view of the detection device and the cylinder device.

一般に、枚葉印刷機は、上流側に給紙部を有し、下流側に排紙部を有し、その中間に印刷部（印刷ユニットとも呼ばれる）を配置している。これらの図は、何れも当該印刷部１の構造を示す図である。この実施形態では、一個の印刷部１を代表して記載しているが、印刷部１は、印刷に使用するインキの色の数に応じた数だけ給紙部と排紙部との間に並べて配置されている。 In general, a sheet-fed printing press has a paper feed unit on the upstream side, a paper discharge unit on the downstream side, and a printing unit (also called a printing unit) arranged in the middle. Each of these drawings is a diagram showing the structure of the printing unit 1. In this embodiment, one printing unit 1 is described as a representative. However, the printing unit 1 is provided between the paper feeding unit and the paper discharging unit by the number corresponding to the number of colors of ink used for printing. They are arranged side by side.

図１および図２に示すように、印刷部１は、本体カバー２と、この本体カバー２に内装され刷版３を巻付けるための版胴４と、版胴４にインキを供給する複数のインキローラ６を含むインキ装置と、刷版３を版胴４側に供給するための給版装置Ａとを有している。なお、版胴４は両側板８，９に支軸４ａを介して回転自在に支持されている。符号５は、版胴４に転接可能なゴム胴を示す。 As shown in FIGS. 1 and 2, the printing unit 1 includes a main body cover 2, a plate cylinder 4 that is built in the main body cover 2 and winds the printing plate 3, and a plurality of inks that supply ink to the plate cylinder 4. An inking device including the ink roller 6 and a plate feeding device A for supplying the printing plate 3 to the plate cylinder 4 side are provided. The plate cylinder 4 is rotatably supported by both side plates 8 and 9 via a support shaft 4a. Reference numeral 5 indicates a rubber cylinder capable of rolling contact with the plate cylinder 4.

本体カバー２は、両側板８，９間の下流側Ｂ１に配置される下流側前板１０を備え、下流側前板１０は、両側板８，９間に上下動可能に取付けられることで、両側板８，９間の下流側Ｂ１を開閉可能に構成されている。 The main body cover 2 includes a downstream front plate 10 disposed on the downstream side B1 between the side plates 8 and 9, and the downstream side front plate 10 is attached between the side plates 8 and 9 so as to be movable up and down. The downstream side B1 between the side plates 8 and 9 is configured to be openable and closable.

版胴４は、刷版３をくわえるための公知のくわえクランプ装置１５を有し、このくわえクランプ装置１５は、刷版３のくわえ側端部２０をくわえるくわえ側版締部２１と、版胴４の尻側端部２２をくわえる尻側版締部２３とを周方向に対で有している。図３に示すように、くわえ側版締部２１は、位置決め用凸部として、版胴４の軸心方向Ｂ（以下「幅方向Ｂ」という）に互いに所定距離だけ離間した円柱状で一対の突起２５，２６を備える。刷版３のくわえ側端部２０に、位置決め用凹部として、突起２５，２６に係止する切欠２７，２８が形成されている。これら切欠２７，２８の少なくとも一方は、突起２５，２６の外周面２５ａ，２６ａの曲率に実質的に等しい曲率を有する半円状に形成された底面２７ｂ，２８ｂと、底面２７ｂ，２８ｂの両側から直線状に延長される側壁面２７ａ，２８ａを有する。 The plate cylinder 4 has a known holding clamp device 15 for holding the printing plate 3. The holding clamp device 15 has a holding side plate clamping portion 21 for holding the holding side end portion 20 of the printing plate 3, and a plate cylinder. 4 has a pair of buttocks-side plate clamping portions 23 that include the buttocks-side end portion 22 in the circumferential direction. As shown in FIG. 3, the holding-side plate clamping portion 21 is a pair of cylindrical shapes spaced apart from each other by a predetermined distance in the axial direction B (hereinafter referred to as “width direction B”) of the plate cylinder 4 as positioning convex portions. Protrusions 25 and 26 are provided. Cutouts 27 and 28 that are engaged with the projections 25 and 26 are formed in the holding side end 20 of the printing plate 3 as positioning recesses. At least one of the cutouts 27 and 28 is formed from the bottom surfaces 27b and 28b formed in a semicircular shape having a curvature substantially equal to the curvature of the outer peripheral surfaces 25a and 26a of the protrusions 25 and 26, and from both sides of the bottom surfaces 27b and 28b. It has side wall surfaces 27a and 28a extending linearly.

図３および図４に示すように、下流側前板１０の下部に、刷版３挿入用の矩形の開口部３０が形成されている。前記給版装置Ａは、開口部３０を開閉するための刷版案内板３１を有する。刷版案内板３１（開口部３０）の幅方向長さＬ１は、刷版３の幅方向長さＬ２に比べて長く設定されている。刷版案内板３１は、下流側前板１０の裏面側の上部両側に設けた支軸３１ａを介して傾動自在に取付けられている。 As shown in FIGS. 3 and 4, a rectangular opening 30 for inserting the printing plate 3 is formed in the lower portion of the downstream side front plate 10. The plate feeder A has a plate guide plate 31 for opening and closing the opening 30. The width direction length L1 of the printing plate guide plate 31 (opening 30) is set to be longer than the width direction length L2 of the printing plate 3. The plate guide plate 31 is attached so as to be tiltable via support shafts 31 a provided on both sides of the upper portion of the rear surface side of the downstream front plate 10.

下流側前板１０の側部３５に、刷版案内板３１を、開口部３０を覆う刷版設置姿勢Ｃ１と、くわえクランプ装置１５側に向けて傾動した給版姿勢Ｃ２とに切替えるためのシリンダ装置３６が回動自在に組付けられている。このシリンダ装置３６のロッド３６ａの先端部は、刷版案内板３１の姿勢を操作するための、幅方向Ｂに平行な操作軸部材３１ｂに取付けられている。この操作軸部材３１ｂは、刷版案内板３１の回動中心となる幅方向に平行な支軸３１ａに連結部材３１ｃを介して連結されている。支軸３１ａは下流側前板１０の側部３５に回動自在に組付けられている。そして、シリンダ装置３６を駆動してロッド３６ａを伸縮させることで操作軸部材３１ｂを操作すると、刷版案内板３１は、連結部材３１ｃを介して支軸３１ａと一体に回動し、前記刷版設置姿勢Ｃ１と、給版姿勢Ｃ２とに切替えられる。刷版案内板３１の板面に、刷版案内板３１の板面に沿って幅方向Ｂと直交する方向（以下、上下方向という）に長い長孔４０が幅方向Ｂに並べて複数個形成されている。なお、図示しないが、例えばシリンダ装置３６の伸縮量（ストローク）のうち伸長量を検出する検出器が設けられており、この検出器は、刷版案内板３１の姿勢、特に給版姿勢Ｃ２を検出するよう構成されている。 Cylinder for switching the plate guide plate 31 to the side plate 35 on the downstream side front plate 10 between the plate installation position C1 covering the opening 30 and the plate supply position C2 tilted toward the holding clamp device 15 side. A device 36 is rotatably assembled. The tip of the rod 36a of the cylinder device 36 is attached to an operation shaft member 31b parallel to the width direction B for operating the posture of the plate guide plate 31. The operation shaft member 31b is connected via a connecting member 31c to a support shaft 31a parallel to the width direction, which is the rotation center of the plate guide plate 31. The support shaft 31a is rotatably attached to the side portion 35 of the downstream side front plate 10. When the operating shaft member 31b is operated by driving the cylinder device 36 to expand and contract the rod 36a, the printing plate guide plate 31 rotates integrally with the support shaft 31a via the connecting member 31c. It is switched between the installation posture C1 and the plate feeding posture C2. A plurality of long holes 40 are formed on the plate surface of the plate guide plate 31 so as to be arranged in the width direction B in the direction orthogonal to the width direction B (hereinafter referred to as the vertical direction) along the plate surface of the plate guide plate 31. ing. Although not shown, for example, a detector for detecting the extension amount of the expansion / contraction amount (stroke) of the cylinder device 36 is provided. This detector detects the posture of the plate guide plate 31, particularly the plate feeding posture C <b> 2. Configured to detect.

給版装置Ａは、下流側前板１０の表面側に、開口部３０の下縁に対して下流側に重なって刷版案内板３１と同等の幅方向長さに形成された受け枠部材４２を有する。受け枠部材４２の刷版案内板３１側には、一対の位置決め部（突起４２ａ，４２ｂ）が設けられており、刷版３の被位置決め部（切欠２７，２８）と係止できるようになっている。刷版案内板３１で開口部３０を閉じた状態で、刷版案内板３１の下部と受け枠部材４２との間に、刷版３のくわえ側端部２０が挿入可能な隙間が設けられている。下流側前板１０の表面側上部に、刷版３に比べて幅方向Ｂに長い上下一対の刷版案内杆４５，４６がブラケット４５ｃ，４６ｃを介して互いに平行、かつ回転可能に掛渡されている。これら刷版案内杆４５，４６は、上下に所定の離間幅を有し、それぞれ下流側前板１０の表面から刷版３が通過可能な距離δの隙間を有して配置されている。各刷版案内杆４５，４６の幅方向途中には、杆本体４５ａ，４６ａよりわずかに大径の環状大径部４５ｂ，４６ｂが複数個設けられている。 The plate feeding apparatus A has a receiving frame member 42 formed on the front surface side of the downstream side front plate 10 so as to overlap the downstream side with respect to the lower edge of the opening 30 and to have the same length in the width direction as the plate guide plate 31. Have A pair of positioning portions (protrusions 42a and 42b) are provided on the plate guide plate 31 side of the receiving frame member 42 so that the receiving frame member 42 can be engaged with the positioned portions (notches 27 and 28) of the printing plate 3. ing. With the opening guide 30 closed by the printing plate guide plate 31, a gap is provided between the lower portion of the printing plate guide plate 31 and the receiving frame member 42 so that the holding side end portion 20 of the printing plate 3 can be inserted. Yes. A pair of upper and lower printing plate guide rods 45 and 46 which are longer in the width direction B than the printing plate 3 are spanned on the upper surface side of the downstream side front plate 10 via the brackets 45c and 46c so as to be parallel to each other and rotatable. ing. These plate guide rods 45 and 46 have a predetermined separation width in the vertical direction, and are arranged with a gap of a distance δ through which the plate 3 can pass from the surface of the downstream front plate 10. A plurality of annular large diameter portions 45b, 46b slightly larger in diameter than the collar main bodies 45a, 46a are provided in the width direction of the respective plate guide collars 45, 46.

給版装置Ａは、刷版３の版裏面を吸引吸着するための吸引装置（「サッカー」ともいう）５０を有する。吸引装置５０は、刷版案内板３１の裏面側に設けられている。吸引装置５０は、刷版案内板３１に比べて小さい幅方向長さを有する吸引パイプ５１と、この吸引パイプ５１の前面に突出するよう設けられて、前記長孔４０それぞれに挿入される複数個の吸引器５２とを備える。この吸引装置５０は、吸引器５２が長孔４０の上方に位置して刷版３を吸引する吸引位置Ｅ１と、刷版３を吸引した状態で長孔４０の下方、すなわちくわえクランプ装置１５側に位置する給版位置Ｅ２とに切替え自在とされている。なお、吸引パイプ５１はその途中に接続される吸引継手５３を介して不図示の吸引ポンプに接続され、吸引パイプ５１の両側は閉塞されている。 The plate feeding apparatus A has a suction device (also referred to as “soccer”) 50 for sucking and sucking the back side of the plate 3. The suction device 50 is provided on the back side of the plate guide plate 31. The suction device 50 is provided with a suction pipe 51 having a smaller length in the width direction than the plate guide plate 31 and a plurality of suction pipes 51 that protrude from the front surface of the suction pipe 51 and are inserted into the respective long holes 40. The suction device 52 is provided. The suction device 50 includes a suction position E1 where the suction device 52 is positioned above the long hole 40 and sucks the printing plate 3, and a lower portion of the long hole 40 in a state where the printing plate 3 is sucked, that is, the gripping device 15 side. It is possible to switch to the plate feeding position E2 located in the position. The suction pipe 51 is connected to a suction pump (not shown) via a suction joint 53 connected in the middle, and both sides of the suction pipe 51 are closed.

図５に示すように、吸引器５２それぞれは、その吸引口部５４が刷版案内板３１の前面からわずかに突出するよう吸引パイプ５１に組付けられ、吸引器５２それぞれの中心に吸引パイプ５１に連通する吸引孔５２ａが形成されている。図６に示すように、長孔４０の幅ｂ１は、吸引器５２の吸引口部５４の最大径ｂ２に比べて大きく設定され、これにより、長孔４０の両側周壁面４０ｂと吸引口部５４との間に、幅ｂ３を有する隙間４０ａが設けられている。 As shown in FIG. 5, each of the suction devices 52 is assembled to the suction pipe 51 so that the suction port portion 54 slightly protrudes from the front surface of the plate guide plate 31, and the suction pipe 51 is formed at the center of each suction device 52. A suction hole 52a that communicates with each other is formed. As shown in FIG. 6, the width b <b> 1 of the long hole 40 is set to be larger than the maximum diameter b <b> 2 of the suction port portion 54 of the suction device 52, and thereby, the peripheral wall surfaces 40 b of the long hole 40 and the suction port portion 54. Is provided with a gap 40a having a width b3.

吸引パイプ５１を上下方向に往復移動可能に支持するとともに、吸引パイプ５１を刷版案内板３１の板面に沿って幅方向Ｂに往復移動可能に支持する支持装置５５が設けられている。この支持装置５５は、刷版案内板３１の裏面側で吸引装置５０の幅方向Ｂ両側に一対で配置され、それぞれ同様の構成を有している。したがって、ここでは一方の支持装置５５の構成を説明する。支持装置５５は、刷版案内板３１の側部に折曲して形成した折曲板部５６にボルト・ナット５７によって固定されたブラケット６０と、このブラケット６０の上板部６１に固定された、伸縮装置として、シリンダ装置（エアシリンダ装置）３７と、このシリンダ装置３７のロッド６２の先端部に固定された支持ブロック体６５と、この支持ブロック体６５とブラケット６０の上板部６１とに設けられたブロック位置決め機構７２と、前記吸引装置５０とを備える。 A support device 55 is provided that supports the suction pipe 51 so as to be reciprocally movable in the vertical direction and supports the suction pipe 51 so as to be reciprocally movable in the width direction B along the plate surface of the plate guide plate 31. The support devices 55 are arranged in pairs on the back side of the plate guide plate 31 on both sides in the width direction B of the suction device 50 and have the same configuration. Therefore, the structure of one support apparatus 55 is demonstrated here. The support device 55 is fixed to a bent plate portion 56 formed by bending the side of the plate guide plate 31 with bolts and nuts 57 and to an upper plate portion 61 of the bracket 60. As a telescopic device, a cylinder device (air cylinder device) 37, a support block body 65 fixed to the tip of the rod 62 of the cylinder device 37, and the support block body 65 and the upper plate portion 61 of the bracket 60 A block positioning mechanism 72 provided and the suction device 50 are provided.

ブラケット６０は、折曲板部５６に前記ボルト・ナット５７を介して固定される取付け部６６と、この取付け部６６の上部に折曲形成された前記上板部６１と、取付け部６６の下部に形成されて後述のストッパ７０を有する下板部７１とから正面視してコ字形に形成されている。シリンダ装置３７は、そのシリンダ部７３が上下方向に沿って上板部６１に固定されることで、ロッド６２が上下方向に往復移動可能に構成されている。シリンダ部７３の長手方向両側の側部に、給気継手７４，７５が接続され、給気継手７４，７５には、シリンダ装置３７の図示しない駆動部が接続されている。 The bracket 60 includes an attachment portion 66 fixed to the bent plate portion 56 via the bolts and nuts 57, the upper plate portion 61 bent at the upper portion of the attachment portion 66, and a lower portion of the attachment portion 66. And is formed in a U-shape when viewed from the lower plate portion 71 having a stopper 70 described later. The cylinder device 37 is configured such that the rod 62 can be reciprocated in the vertical direction by fixing the cylinder portion 73 to the upper plate portion 61 along the vertical direction. The air supply joints 74 and 75 are connected to the side portions on both sides in the longitudinal direction of the cylinder portion 73, and a drive portion (not shown) of the cylinder device 37 is connected to the air supply joints 74 and 75.

図７に示すように、シリンダ装置３７のロッド６２の伸長量を検出するための検出装置７６が、シリンダ装置３７に取付けられている。検出装置７６として、永久磁石式検出スイッチが用いられている。すなわち検出装置７６は、シリンダ装置３７のピストン７７が非磁性体から形成され、このピストン７７に永久磁石７７ａが組込まれ、非磁性体から形成したシリンダ本体７８の外周部に本体ケース７９が取付けられ、本体ケース７９にリードスイッチ５８が内装され、このリードスイッチ５８に、有色表示灯５９が接続された構成を有する。この構成を有するリードスイッチ５８は、前記永久磁石７７ａの磁界によって、リードスイッチ５８がオン・オフ作動するものである。リードスイッチ５８からの検出信号に応じてくわえクランプ装置１５の駆動を制御するための制御装置３８が設けられ、リードスイッチ５８と制御装置３８とが、リード線３８ａを介して接続されている。リードスイッチ５８は、その端子５８ａ，５８ｂの先端部に永久磁石７７ａが実質的に径方向内方に位置したときに永久磁石７７ａの励磁によって端子５８ａ，５８ｂの先端部どうしが接触してオンとなり、永久磁石７７ａが離れたときに端子５８ａ，５８ｂの先端部どうしが非接触となり、オフとなる。 As shown in FIG. 7, a detection device 76 for detecting the extension amount of the rod 62 of the cylinder device 37 is attached to the cylinder device 37. A permanent magnet type detection switch is used as the detection device 76. That is, in the detection device 76, the piston 77 of the cylinder device 37 is formed of a non-magnetic material, a permanent magnet 77a is incorporated in the piston 77, and a body case 79 is attached to the outer peripheral portion of the cylinder body 78 formed of the non-magnetic material. A reed switch 58 is built in the main body case 79, and a colored indicator lamp 59 is connected to the reed switch 58. In the reed switch 58 having this configuration, the reed switch 58 is turned on and off by the magnetic field of the permanent magnet 77a. A control device 38 for controlling the driving of the gripping device 15 according to a detection signal from the reed switch 58 is provided, and the reed switch 58 and the control device 38 are connected via a lead wire 38a. When the permanent magnet 77a is positioned substantially inward in the radial direction at the tips of the terminals 58a and 58b, the lead switch 58 is turned on when the tips of the terminals 58a and 58b come into contact with each other by excitation of the permanent magnet 77a. When the permanent magnet 77a is separated, the tips of the terminals 58a and 58b are not in contact with each other and are turned off.

前記検出器は制御装置３８に接続され、制御装置３８は、検出器からの給版姿勢Ｃ２信号によって、シリンダ装置３７に駆動信号を出力する機能を有する。制御装置３８は、シリンダ装置３７の駆動開始から所定時間経過後にリードスイッチ５８がオンし、そのオン状態を所定時間維持した場合に突起２５，２６に切欠２７，２８が係止した係止状態であると判断して、くわえクランプ装置１５の駆動部に駆動信号を出力する機能を有する。また制御装置３８は、シリンダ装置３７の駆動開始から所定時間経過後に、リードスイッチ５８がオンとなり、かつその短時間後に、リードスイッチ５８がオフになった場合に、突起２５，２６に切欠２７，２８が係止していない状態であると判断して、くわえクランプ装置１５の駆動部に駆動信号を出力しない。さらに制御装置３８は、シリンダ装置３７の駆動開始から所定時間経過後であってもリードスイッチ５８がオフのままの場合、突起２５，２６に切欠２７，２８が係止していない状態であると判断して、くわえクランプ装置１５の駆動部に駆動信号を出力しない。但し、これらの機能は、吸引装置５０が刷版３を吸引する吸引力が、シリンダ装置３７の駆動力に比べて充分に大きいことを前提としている。ここで所定時間とは、刷版案内板３１と受け枠部材４２との間に刷版３のくわえ側端部２０を挿入して吸引器５２で刷版３を吸引し、刷版案内板３１を給版姿勢Ｃ２としてから、予め設定された伸長速度で伸長するロッド６２を有するシリンダ装置３７を駆動して、刷版３の切欠２７，２８が突起２５，２６に係止するまで給版方向へ移動させるのに要する時間である。 The detector is connected to a control device 38, and the control device 38 has a function of outputting a drive signal to the cylinder device 37 in accordance with a plate feeding posture C2 signal from the detector. The control device 38 is in a locked state in which the reed switch 58 is turned on after a predetermined time has elapsed from the start of driving of the cylinder device 37 and the notches 27 and 28 are locked to the protrusions 25 and 26 when the on state is maintained for a predetermined time. It is determined that there is a function, and has a function of outputting a drive signal to the drive unit of the gripping device 15. In addition, the control device 38 has notches 27, 26 in the protrusions 25, 26 when the reed switch 58 is turned on after a predetermined time has elapsed from the start of driving of the cylinder device 37 and the reed switch 58 is turned off after a short time. It is determined that 28 is not locked, and a drive signal is not output to the drive unit of the clamp apparatus 15. Further, when the reed switch 58 remains off even after a predetermined time has elapsed from the start of driving of the cylinder device 37, the control device 38 is in a state where the notches 27 and 28 are not locked to the protrusions 25 and 26. Judging, a drive signal is not output to the drive part of the clamp device 15. However, these functions are based on the premise that the suction force that the suction device 50 sucks the plate 3 is sufficiently larger than the driving force of the cylinder device 37. Here, the predetermined time is that the holding side end portion 20 of the printing plate 3 is inserted between the printing plate guide plate 31 and the receiving frame member 42, and the printing plate 3 is sucked by the suction device 52. From the plate feeding posture C2 to the plate feeding direction until the cylinder device 37 having the rod 62 extending at a preset extension speed is driven and the notches 27, 28 of the printing plate 3 are locked to the projections 25, 26. This is the time required to move to

支持ブロック体６５は、ブラケット６０の取付け部６６の長手方向高さに比べて小さく形成されるとともに上板部６１と下板部７１との間に配置される。この支持ブロック体６５は、ロッド６２の先端部に固定される本体部８０と、この本体部８０の長手方向（上下方向）両側にそれぞれ上板部６１、下板部７１に略平行に配置される支持片８１，８２とから正面視してコ字形に形成される。前記ストッパ７０は、支持ブロック体６５の本体部８０に長手方向で対向する位置に、ブラケット６０の下板部７１から支持ブロック体６５の本体部８０側に突出するよう設けられている。 The support block body 65 is formed smaller than the height in the longitudinal direction of the mounting portion 66 of the bracket 60 and is disposed between the upper plate portion 61 and the lower plate portion 71. The support block body 65 is disposed substantially parallel to the upper plate portion 61 and the lower plate portion 71 on both sides of the main body portion 80 fixed to the tip end portion of the rod 62 and the longitudinal direction (vertical direction) of the main body portion 80. The support pieces 81 and 82 are formed in a U shape when viewed from the front. The stopper 70 is provided so as to protrude from the lower plate portion 71 of the bracket 60 toward the main body portion 80 of the support block body 65 at a position facing the main body portion 80 of the support block body 65 in the longitudinal direction.

ブロック位置決め機構７２は、ブラケット６０の上板部６１に取付けられた突起８５と、支持ブロック体６５の支持片８１，８２に渡すように組付けられた遊動部材８６と、支持片８１，８２に形成されて遊動部材８６の胴部８６ａを幅方向Ｂに遊動可能に挿通する長孔４１とを有する。 The block positioning mechanism 72 is formed on the protrusion 85 attached to the upper plate portion 61 of the bracket 60, the floating member 86 assembled so as to pass to the support pieces 81 and 82 of the support block body 65, and the support pieces 81 and 82. The long hole 41 is formed and inserted through the body portion 86a of the floating member 86 so as to be freely movable in the width direction B.

突起８５はその基端部８５ａがブラケット６０の上板部６１に挿入して組付けられ、突起８５の先端部８５ｂは順次縮小された円錐形状に形成されている。遊動部材８６の頭部８６ｂは、長孔４１に比べて大径に形成されて、その中心に、前記突起８５の先端部８５ｂが嵌合離脱可能な凹部８６ｃを有する。遊動部材８６の端部に、遊動部材８６の胴部８６ａが長孔４１から抜けるのを防止する抜止め具８６ｄが組付けられている。前記吸引パイプ５１の端部は、支持ブロック体６５の支持片８１，８２間に配置され、遊動部材８６の胴部８６ａを外嵌し吸引パイプ５１の端部を閉塞する閉塞部材８７が一体化されている。 The protrusion 85 is assembled by inserting the base end portion 85a of the protrusion 85 into the upper plate portion 61 of the bracket 60, and the tip end portion 85b of the protrusion 85 is formed in a conical shape that is successively reduced. The head portion 86b of the floating member 86 is formed to have a larger diameter than the elongated hole 41, and has a concave portion 86c at the center of which the distal end portion 85b of the protrusion 85 can be fitted and detached. A retaining member 86 d that prevents the body portion 86 a of the floating member 86 from coming out of the long hole 41 is assembled to the end portion of the floating member 86. An end of the suction pipe 51 is disposed between the support pieces 81 and 82 of the support block body 65, and a closing member 87 that externally fits the body 86a of the floating member 86 and closes the end of the suction pipe 51 is integrated. Has been.

給版装置Ａは、給版、排版時に、刷版３を案内する補助案内装置９６を有する。この補助案内装置９６は、下流側前板１０の軸方向両側部に支軸９６ａを介して支持された傾動板９７と、この傾動板９７の先端部に配置された杆部材９８の途中に複数個配置されて給版時にのみ刷版３の表面に接触してこれを案内する給版案内ローラ９９と、排版時にのみ刷版３の表面に接触してこれを案内する不図示の排版案内体を備えている。傾動板９７は、リンク機構等を用いて、給版時と排版時とで水平面Ｐに対する傾斜角度が異なるよう構成されている。具体的には、排版時の傾動板９７は水平面Ｐに略平行であり、給版時には水平面Ｐに対する傾斜角度は角度θだけ上方向に傾斜するよう構成されている。このような傾動板９７の動作により、給版時と排版時とで刷版３に給版案内ローラ９９を接触させるか排版案内体を接触させるかを選択している。このようにする理由は、給版時に刷版３（新版）に刷版（旧版）のインキが付着するのを防止するためであり、インキは排版時に排版案内体に付着するのみで、給版案内ローラ９９に付着することを防止されているから、供給する刷版３にインキが付着するのを防止することができる。 The plate feeding apparatus A has an auxiliary guide device 96 that guides the printing plate 3 at the time of feeding and discharging. The auxiliary guide device 96 includes a plurality of tilting plates 97 supported on both sides in the axial direction of the downstream front plate 10 via support shafts 96a, and a saddle member 98 disposed at the tip of the tilting plate 97. A plate-feeding guide roller 99 that is arranged and contacts and guides the surface of the printing plate 3 only at the time of plate feeding, and a plate-discharging guide body (not shown) that touches and guides the surface of the printing plate 3 only at the time of plate discharging. It has. The tilting plate 97 is configured so that the tilt angle with respect to the horizontal plane P differs between the plate feeding and the plate discharging using a link mechanism or the like. Specifically, the tilting plate 97 at the time of discharging is substantially parallel to the horizontal plane P, and the tilt angle with respect to the horizontal plane P is inclined upward by an angle θ at the time of feeding. By such an operation of the tilting plate 97, it is selected whether the plate feeding guide roller 99 is brought into contact with the printing plate 3 or the plate ejection guiding body is brought into contact with the plate 3 during the plate feeding and the plate discharging. The reason for this is to prevent the ink of the printing plate (old plate) from adhering to the printing plate 3 (new plate) at the time of feeding, and the ink only adheres to the discharge plate guide at the time of discharging. Since it is prevented from adhering to the guide roller 99, it is possible to prevent ink from adhering to the plate 3 to be supplied.

図１および図２に示すように、印刷部１は、下流側前板１０に、版胴４に巻付いた刷版３を下流側前板１０の上部から排出するための排版装置９０を有する。この排版装置９０は、下流側前板１０の裏面側上部に配置された前後一対の排版案内板９１，９２と、刷版３を表裏両側から挟持する挟持ローラ９３，９４とを有する。挟持ローラ９３，９４は、不図示の共通のエアシリンダ装置によって排版案内板９１，９２に沿って上下動可能に設けられ、他方の挟持ローラ９４は、排版案内板９１，９２に沿って上下動可能に設けられるとともに、その動作に伴って一方の挟持ローラ９３に接近離間自在に構成されている。すなわち、他方の挟持ローラ９４は、不図示のばねにより一方の挟持ローラ９３に向けて弾発付勢され、下流側前板１０に、他方の挟持ローラ９４が下方にある際にこれを一方の挟持ローラ９３に対して離間させその位置を保持させるためのステー９５が設けられている。 As shown in FIGS. 1 and 2, the printing unit 1 has a plate discharging device 90 for discharging the printing plate 3 wound around the plate cylinder 4 from the upper portion of the downstream front plate 10 on the downstream front plate 10. . The plate discharging device 90 includes a pair of front and rear plate discharging guide plates 91 and 92 disposed on the upper surface of the downstream side front plate 10 and clamping rollers 93 and 94 for clamping the printing plate 3 from both the front and back sides. The sandwiching rollers 93 and 94 are provided so as to be movable up and down along the plate ejection guide plates 91 and 92 by a common air cylinder device (not shown), and the other sandwiching roller 94 is moved up and down along the plate ejection guide plates 91 and 92. In addition to being provided, it is configured to be able to approach and separate from one clamping roller 93 in accordance with its operation. That is, the other clamping roller 94 is elastically biased toward one clamping roller 93 by a spring (not shown), and when the other clamping roller 94 is on the lower side of the downstream front plate 10, A stay 95 for separating the holding roller 93 and holding the position thereof is provided.

上記構成を有する印刷部１において、まず版胴４に刷版３を巻付ける動作を説明する。この場合作業者は、刷版案内板３１を、開口部３０を閉じた刷版設置姿勢Ｃ１とした状態で、刷版３を下流側前板１０の表面と刷版案内杆４５との隙間に挿入する。続いて、さらに刷版３を降ろして下流側前板１０の表面と下方の刷版案内杆４６との隙間に送り、刷版３のくわえ側端部２０を刷版案内板３１と、受け枠部材４２との間に挿入する。受け枠部材４２には位置決め部（突起４２ａ，４２ｂ）が設けられており、刷版３のくわえ側端部２０に形成された被位置決め部（切欠２７，２８）を係止させることで刷版３の位置決めを行う。 In the printing unit 1 having the above-described configuration, the operation of winding the printing plate 3 around the plate cylinder 4 will be described first. In this case, the operator places the printing plate 3 in the gap between the surface of the downstream front plate 10 and the printing plate guide rod 45 in a state where the printing plate guide plate 31 is in the printing plate installation posture C1 with the opening 30 closed. insert. Subsequently, the printing plate 3 is further lowered and sent to the gap between the surface of the downstream front plate 10 and the lower printing plate guide 46, and the holding side end 20 of the printing plate 3 is moved to the printing plate guide plate 31 and the receiving frame. Insert between the member 42. The receiving frame member 42 is provided with positioning portions (protrusions 42a and 42b), and the printing plate is formed by locking the positioning portions (notches 27 and 28) formed at the holding side end portion 20 of the printing plate 3. Positioning 3 is performed.

次に、作業者が不図示の吸引スイッチを操作すると、吸引装置５０の吸引ポンプが駆動し、吸引ポンプの吸引力が吸引パイプ５１を介して各吸引器５２に伝わり、これらが刷版３の版裏面を吸引し、刷版３のくわえ側端部２０側が刷版案内板３１に沿った状態となる。この場合、吸引パイプ５１は長孔４０に対してその上部領域に位置付けられており、したがって各吸引器５２も長孔４０に対してその上部領域に位置付けられた吸引位置Ｅ１にある。 Next, when the operator operates a suction switch (not shown), the suction pump of the suction device 50 is driven, and the suction force of the suction pump is transmitted to each suction device 52 through the suction pipe 51, and these are transferred to the plate 3. The back surface of the printing plate is sucked, and the holding side end 20 side of the printing plate 3 is in a state along the printing plate guide plate 31. In this case, the suction pipe 51 is positioned in the upper region with respect to the long hole 40, and therefore each suction device 52 is also in the suction position E <b> 1 positioned in the upper region with respect to the long hole 40.

次に、作業者が不図示の給版スイッチを操作すると版胴４のくわえ側版締部２１が刷版３のくわえ側端部２０を挿入する位置で停止した後、刷版３のくわえ側端部２０領域を刷版案内板３１に沿わせた状態で、続いてシリンダ装置３６が駆動すると、それまで開口部３０を塞いでいた刷版案内板３１が支軸３１ａ回りに、版胴４側に傾動（図１の反時計方向）し、給版姿勢Ｃ２となる。この動作により、刷版３のくわえ側端部２０が版胴４のくわえクランプ装置１５、特にくわえ側版締部２１に接近することになる。一方で、刷版案内板３１が版胴４側に傾動する動作に伴い、それまでほぼ水平姿勢だった補助案内装置９６の傾動板９７が、仮想線で示すように、水平面Ｐに対して角度θだけ上方に傾斜し、その先端部に設けられた給版案内ローラ９９が刷版案内板３１のくわえ側端部２０に接近する。 Next, when the operator operates a plate feed switch (not shown), the holding side plate clamping portion 21 of the plate cylinder 4 stops at the position where the holding side end portion 20 of the printing plate 3 is inserted, and then the holding side of the printing plate 3 When the cylinder device 36 is subsequently driven in a state where the end portion 20 region is aligned with the plate guide plate 31, the plate guide plate 31 that has blocked the opening 30 until then is moved around the support shaft 31a and the plate cylinder 4 Tilt to the side (counterclockwise in FIG. 1), and a plate feeding posture C2 is obtained. By this operation, the holding side end portion 20 of the printing plate 3 comes close to the holding clamp device 15 of the plate cylinder 4, particularly the holding side plate clamping portion 21. On the other hand, as the printing plate guide plate 31 tilts toward the plate cylinder 4, the tilting plate 97 of the auxiliary guide device 96 that has been in a substantially horizontal posture until then is angled with respect to the horizontal plane P as indicated by a virtual line. The plate feed guide roller 99 is inclined upward by θ, and approaches the holding side end portion 20 of the plate guide plate 31.

刷版案内板３１が給版姿勢Ｃ２になると、これを検出器が検出して、その信号が制御装置３８に出力され、制御装置３８は、シリンダ装置３７の駆動部に駆動信号を出力する。シリンダ装置３７が駆動し、そのロッド６２が伸長すると、支持ブロック体６５は、その本体部８０がロッド６２に取付けられているので、支持ブロック体６５が刷版案内板３１に沿って、ストッパ７０側に移動する。一方で、それまで互いに嵌合していた突起８５と遊動部材８６の頭部８６ｂとが嵌合を離脱し、吸引装置５０は、各吸引器５２が長孔４０の下方領域に位置する給版位置Ｅ２に移動する。すなわち、吸引パイプ５１は、遊動部材８６および閉塞部材８７を介して支持ブロック体６５に取付けられており、各吸引器５２は吸引パイプ５１に組付けられているので、支持ブロック体６５が刷版案内板３１に沿ってストッパ７０側に移動すると、各吸引器５２は、刷版３を吸着したまま長孔４０に沿ってくわえクランプ装置１５のくわえ側版締部２１に移動する。 When the plate guide plate 31 is in the plate feeding posture C2, this is detected by the detector, and the signal is output to the control device 38. The control device 38 outputs a drive signal to the drive unit of the cylinder device 37. When the cylinder device 37 is driven and the rod 62 is extended, the support block 65 is attached to the rod 62 so that the support block 65 is moved along the plate guide plate 31 with the stopper 70. Move to the side. On the other hand, the protrusion 85 and the head portion 86b of the floating member 86 that have been fitted to each other are disengaged from each other, and the suction device 50 has a plate feeding in which each suction device 52 is located in a lower region of the long hole 40. Move to position E2. That is, the suction pipe 51 is attached to the support block body 65 via the floating member 86 and the closing member 87, and each suction device 52 is assembled to the suction pipe 51. Therefore, the support block body 65 is a printing plate. When moving along the guide plate 31 toward the stopper 70, each suction device 52 moves along the elongated hole 40 to the holding side plate clamping portion 21 of the holding clamp device 15 while adsorbing the plate 3.

吸引装置５０が給版位置Ｅ２に移動すると、刷版３と版胴４の幅方向Ｂ位置が正しく位置合わせされている場合では、図８の模式図に示すように、刷版３のくわえ側端部２０に形成した切欠２７（２８）が、それぞれくわえ側版締部２１に設けた突起２５，２６に係止し、同時にリードスイッチ５８が、永久磁石７７ａの磁界によって励磁され、リードスイッチ５８の端子５８ａ，５８ｂが互いに接触してリードスイッチ５８がオンとなり、表示灯５９が点灯する。切欠２７，２８が突起２５，２６に係止すると、その係止力（嵌合力）による負荷でもって、ロッド６２はそれ以上伸長しない。リードスイッチ５８がオンとなり、継続的にオン信号が制御装置３８に出力されると、制御装置３８は切欠２７，２８が、それぞれくわえ側版締部２１に設けた突起２５，２６と係止した状態にあると判断し、制御装置３８は、くわえクランプ装置１５の駆動部に駆動信号を出力する。これにより、くわえクランプ装置１５のくわえ側版締部２１が駆動して、刷版３のくわえ側端部２０をくわえる。なお、図８ではリードスイッチ５８がオンする位置を一点鎖線Ｎで示している。くわえ側版締部２１が刷版３のくわえ側端部２０をくわえて版胴４が図１の反時計方向に回転すると、刷版３は版胴４に巻取られ、このとき、傾動板９７が水平面Ｐに対して角度θだけ上方向に傾斜していることで、傾動板９７に設けた給版案内ローラ９９に沿って刷版３が案内される。続いてくわえクランプ装置１５の尻側版締部２３が版胴４の尻側端部２２をくわえ、刷版３は版胴４に密着し、印刷作業が可能な状態となる。 When the suction device 50 moves to the plate feeding position E2, when the position of the printing plate 3 and the plate cylinder 4 in the width direction B is correctly aligned, as shown in the schematic diagram of FIG. The notches 27 (28) formed in the end portion 20 are respectively engaged with the projections 25 and 26 provided on the holding side plate clamping portion 21, and at the same time, the reed switch 58 is excited by the magnetic field of the permanent magnet 77a. The terminals 58a and 58b come into contact with each other, the reed switch 58 is turned on, and the indicator lamp 59 is lit. When the notches 27 and 28 are locked to the protrusions 25 and 26, the rod 62 does not extend any more due to a load due to the locking force (fitting force). When the reed switch 58 is turned on and an on signal is continuously output to the control device 38, the control device 38 engages the notches 27 and 28 with the projections 25 and 26 provided on the holding side plate clamping portion 21, respectively. The control device 38 determines that it is in a state and outputs a drive signal to the drive unit of the gripper device 15. As a result, the holding side plate clamping portion 21 of the holding clamp device 15 is driven to hold the holding side end portion 20 of the printing plate 3. In FIG. 8, a position where the reed switch 58 is turned on is indicated by a one-dot chain line N. When the holding plate clamping part 21 holds the holding end 20 of the printing plate 3 and the plate cylinder 4 rotates counterclockwise in FIG. 1, the printing plate 3 is wound around the printing drum 4, and at this time, the tilting plate is moved. Since the plate 97 is inclined upward by an angle θ with respect to the horizontal plane P, the plate 3 is guided along the plate feed guide roller 99 provided on the tilt plate 97. Subsequently, the bottom side plate clamping portion 23 of the holding clamp device 15 holds the bottom side end portion 22 of the plate cylinder 4 so that the printing plate 3 is brought into close contact with the plate cylinder 4 so that a printing operation can be performed.

ところで、刷版３を版胴４に給版する際、刷版３と版胴４の幅方向Ｂ位置が正しく位置合わせされていない場合が考えられる。この場合、切欠２７，２８と突起２５，２６とは幅方向Ｂにずれ、両者が係止しない場合が発生することになる。しかし、ブロック位置決め機構７２では、遊動部材８６の胴部８６ａを幅方向Ｂに遊動可能に挿通する長孔４１を支持片８１，８２に有し、吸引装置５０の給版位置Ｅ２では、突起８５と遊動部材８６の頭部８６ｂとは嵌合を離脱しているから、遊動部材８６は長孔４１に沿って遊動可能な状態となっている。 By the way, when the printing plate 3 is fed to the plate cylinder 4, there may be a case where the positions in the width direction B of the printing plate 3 and the plate cylinder 4 are not correctly aligned. In this case, the notches 27 and 28 and the protrusions 25 and 26 are displaced in the width direction B, and the case where they are not locked occurs. However, in the block positioning mechanism 72, the support pieces 81 and 82 have the long holes 41 through which the body portion 86a of the floating member 86 is movably inserted in the width direction B, and the protrusion 85 is provided at the plate feeding position E2 of the suction device 50. And the head 86b of the floating member 86 are disengaged from each other, so that the floating member 86 is movable along the long hole 41.

したがって、刷版案内板３１が開口部３０を開放するようにくわえクランプ装置１５側に傾動した給版姿勢Ｃ２において、刷版３のくわえ側端部２０がくわえ側版締部２１に向けて移動したときに、切欠２７，２８と突起２５，２６とが幅方向Ｂにずれていたとすると、切欠２７，２８と突起２５，２６との掛かりがあれば、円柱状の突起２５，２６の外周面２５ａ，２６ａでもって切欠２７，２８の側壁面２７ａ，２８ａが、刷版３と版胴４とが幅方向Ｂで正しい位置に矯正される方向に押圧されることになる。そして、吸引器５２は刷版３を吸引してこれに密着しているから、吸引装置５０の吸引器５２および吸引パイプ５１が刷版３とともに幅方向Ｂに移動しながらくわえ側版締部２１に向けて移動し、上記のように、刷版３のくわえ側端部２０は、くわえ側版締部２１の駆動によってくわえられる。ところで、一般に、刷版３と版胴４の幅方向Ｂ位置が正しく位置合わせされていない場合であってもそのずれ量はわずかであると考えられる。したがって、切欠２７，２８と突起２５，２６との掛かりであっても、突起２５，２６の外周面２５ａ，２６ａでもって切欠２７，２８の側壁面２７ａ，２８ａを押圧することができ、刷版３を幅方向Ｂに位置矯正することができる。 Therefore, the holding side end 20 of the printing plate 3 moves toward the holding side plate clamping portion 21 in the plate feeding posture C2 tilted toward the holding clamp device 15 so that the printing plate guide plate 31 opens the opening 30. If the notches 27 and 28 and the projections 25 and 26 are shifted in the width direction B, the outer peripheral surface of the columnar projections 25 and 26 can be obtained if there is a hook between the notches 27 and 28 and the projections 25 and 26. The side walls 27a and 28a of the notches 27 and 28 are pressed in the direction in which the printing plate 3 and the plate cylinder 4 are corrected to the correct positions in the width direction B by 25a and 26a. Since the suction device 52 sucks the plate 3 and adheres to the plate 3, the suction device 52 and the suction pipe 51 of the suction device 50 move in the width direction B together with the printing plate 3, and the holding side plate clamping portion 21. As described above, the holding side end portion 20 of the printing plate 3 is held by the driving of the holding side plate clamping portion 21. By the way, generally, even when the width direction B positions of the printing plate 3 and the plate cylinder 4 are not correctly aligned, it is considered that the deviation amount is small. Therefore, even when the notches 27 and 28 are engaged with the projections 25 and 26, the side wall surfaces 27a and 28a of the notches 27 and 28 can be pressed by the outer peripheral surfaces 25a and 26a of the projections 25 and 26, and the printing plate 3 can be corrected in the width direction B.

ところで、従来のこの種の印刷機では、版胴に対して刷版を給版する際、刷版（新版）の被位置決め部と版胴の位置決め部と版胴の位置決め部とを位置合わせするために、版胴の版見当を原点に戻す必要があった。しかし、本発明の実施形態では、上記のように、刷版３を吸引装置５０によって吸引しながら版胴４のくわえクランプ装置１５に向けて給版する際、突起２５，２６に対して刷版３の切欠２７，２８が幅方向Ｂにずれていたとしても、刷版３を吸引装置５０とともに幅方向Ｂに位置矯正されながら、かつ版胴４のくわえクランプ装置１５に向けて給版される。このため、刷版３の給版の際、版胴４の位置決め部と刷版（新版）３の被位置決め部とを一致させるために版胴４の版見当を原点に戻すといった作業が不要になり、その分だけ印刷作業を効率的に行うことができる。 By the way, in this type of conventional printing press, when the printing plate is fed to the plate cylinder, the positioning portion of the printing plate (new plate), the positioning portion of the plate cylinder, and the positioning portion of the plate cylinder are aligned. Therefore, it was necessary to return the plate register of the plate cylinder to the origin. However, in the embodiment of the present invention, when the plate 3 is fed toward the holding clamp device 15 of the plate cylinder 4 while being sucked by the suction device 50 as described above, the plate is applied to the projections 25 and 26. 3, even if the notches 27 and 28 of the plate 3 are displaced in the width direction B, the plate 3 is fed toward the holding clamp device 15 of the plate cylinder 4 while being corrected in the width direction B together with the suction device 50. . For this reason, when the printing plate 3 is supplied, it is unnecessary to return the plate register of the plate cylinder 4 to the origin in order to make the positioning portion of the plate cylinder 4 coincide with the positioned portion of the printing plate (new plate) 3. Therefore, the printing operation can be efficiently performed by that amount.

ところで、刷版３を版胴４側に給版する際、例えば刷版３に折れが発生していて、刷版３が下流側前板１０の表面と受け枠部材４２との隙間に挿入されていない状態、すなわち刷版３のくわえ側端部２０が受け枠部材４２の上面に乗っている状態で作業者が吸引スイッチを操作して刷版３を吸引したような場合が考えられる。この場合でも、作業者が給版スイッチを操作すると、刷版案内板３１が支軸３１ａ回りに、版胴４側に傾動し、給版姿勢Ｃ２となり、これを検出器が検出するとその信号が制御装置３８に出力され、制御装置３８は、シリンダ装置３７の駆動部に駆動信号を出力することになる。この場合、シリンダ装置３７の駆動開始から所定時間経過後、リードスイッチ５８が一旦オンしてその後すぐにオフ（端子５８ａ，５８ｂどうしが非接触）となる。このように、刷版３が刷版案内板３１に確実に設置されていない状態では、吸引装置５０は給版位置Ｅ２を通過する、すなわち図１０の模式図に示すように、刷版３の切欠２７，２８がくわえ側版締部２１の突起２５，２６に係止することがない。このような場合、制御装置３８は、くわえクランプ装置１５の駆動部を停止させた状態を維持させるとともに、シリンダ装置３７の駆動を停止させる。そして、エラーメッセージがモニター上に出ることから、作業者は、刷版３の再設置等の処理が必要であることを知ることができる。 By the way, when the plate 3 is fed to the plate cylinder 4 side, for example, the plate 3 is broken, and the plate 3 is inserted into the gap between the surface of the downstream front plate 10 and the receiving frame member 42. It is conceivable that the operator operates the suction switch to suck the printing plate 3 in a state in which the plate side end 20 of the printing plate 3 is on the upper surface of the receiving frame member 42. Even in this case, when the operator operates the plate supply switch, the printing plate guide plate 31 is tilted around the support shaft 31a toward the plate cylinder 4 and becomes the plate supply posture C2. When this is detected by the detector, the signal is output. The control device 38 outputs a drive signal to the drive unit of the cylinder device 37. In this case, after a predetermined time has elapsed from the start of driving of the cylinder device 37, the reed switch 58 is once turned on and then turned off immediately (the terminals 58a and 58b are not in contact with each other). Thus, in a state where the printing plate 3 is not securely installed on the printing plate guide plate 31, the suction device 50 passes through the plate feeding position E2, that is, as shown in the schematic diagram of FIG. The notches 27 and 28 are not locked to the protrusions 25 and 26 of the gripper side plate clamping portion 21. In such a case, the control device 38 maintains the state in which the drive unit of the clamp device 15 is stopped and stops the driving of the cylinder device 37. Since the error message appears on the monitor, the operator can know that processing such as re-installation of the printing plate 3 is necessary.

下流側前板１０の表面と受け枠部材４２との隙間に、くわえ側端部２０に折れがある刷版３が挿入されている状態で刷版案内板３１が支軸３１ａ回りに版胴４側に傾動し、給版姿勢Ｃ２となり、これを検出器が検出するとその信号が制御装置３８に出力され、制御装置３８は、シリンダ装置３７の駆動部に駆動信号を出力することになる。この場合、刷版３はくわえ側版締部２１の開口部に挿入することができない。つまり、くわえ側端部２０の折れがくわえ側版締部２１の先端に衝突してしまう。ここで、吸引装置５０が刷版３を吸着する吸引力は、シリンダ装置３７の駆動力に比べて充分に大きいから、シリンダ装置３７のロッド６２は伸長することができない。このため、シリンダ装置３７の駆動開始から所定時間経過後であっても、リードスイッチ５８がオンしない。これは、図９の模式図に示すように、刷版３の切欠２７，２８（くわえ側端部２０）が突起２５，２６に係止していないと考えられる。この状態もくわえクランプ装置１５に対する刷版３の位置合わせができていない状態であるから、制御装置３８は、くわえクランプ装置１５の駆動部を停止させた状態を維持させるとともに、シリンダ装置３７の駆動を停止させる。そして、表示灯５９も点灯しないことから、作業者は、刷版３の再設置が必要なことを知ることができる。 The plate guide plate 31 is moved around the support shaft 31a with the plate cylinder 4 in a state in which the plate 3 having a fold at the holding side end portion 20 is inserted into the gap between the surface of the downstream front plate 10 and the receiving frame member 42. When the detector detects this, the signal is output to the control device 38, and the control device 38 outputs a drive signal to the drive unit of the cylinder device 37. In this case, the printing plate 3 cannot be inserted into the opening of the holding side plate clamping portion 21. That is, the bending of the holding side end 20 collides with the tip of the holding side plate clamping part 21. Here, since the suction force with which the suction device 50 sucks the plate 3 is sufficiently larger than the driving force of the cylinder device 37, the rod 62 of the cylinder device 37 cannot be extended. For this reason, the reed switch 58 is not turned on even after a predetermined time has elapsed from the start of driving of the cylinder device 37. As shown in the schematic diagram of FIG. 9, it is considered that the notches 27 and 28 (the grip side end 20) of the printing plate 3 are not locked to the protrusions 25 and 26. Since this state is also a state in which the printing plate 3 is not aligned with the gripping device 15, the control device 38 maintains the state where the driving portion of the gripping device 15 is stopped and the driving of the cylinder device 37. Stop. Since the indicator lamp 59 is not lit, the operator can know that the plate 3 needs to be reinstalled.

刷版３の版胴４への巻取りが終了すると、シリンダ装置３７はロッド６２をシリンダ部７３側に戻すよう再び駆動し、これにより吸引装置５０全体が上動してその吸引器５２が次に給版する刷版３を吸引する吸引位置Ｅ１に戻り、ブロック位置決め機構７２の突起８５と、遊動部材８６の頭部８６ｂとが嵌合し、吸引装置５０全体が幅方向Ｂに移動不可能に固定される。また、ほぼ同時に刷版案内板３１はシリンダ装置３６の駆動により給版姿勢Ｃから刷版設置姿勢Ｃ１へ戻る。このとき、補助案内装置９６の傾動板９７が略水平な姿勢に復帰する。 When the winding of the printing plate 3 onto the plate cylinder 4 is completed, the cylinder device 37 is driven again to return the rod 62 to the cylinder portion 73 side. As a result, the entire suction device 50 is moved upward, and the suction device 52 is moved to the next. Returning to the suction position E1 for sucking the printing plate 3 to be fed, the projection 85 of the block positioning mechanism 72 and the head 86b of the floating member 86 are fitted, and the entire suction device 50 cannot move in the width direction B. Fixed to. At approximately the same time, the printing plate guide plate 31 returns from the plate feeding posture C to the printing plate installation posture C 1 by driving the cylinder device 36. At this time, the tilting plate 97 of the auxiliary guide device 96 returns to a substantially horizontal posture.

印刷が終了して刷版３を排版する場合、くわえクランプ装置１５が所定の位置に来るよう版胴４を回転させ、尻側版締部２３における版胴４の尻側端部２２のくわえ状態を解除する。そうすると、版胴４の尻側端部２２がその弾性によって版胴４から外れ、ほぼ水平姿勢にある傾動板９７の排版案内体に当たる。次に、版胴４を図２の時計方向に回転させると、刷版３の途中部分は順次版胴４から離れ、刷版３の尻側端部２２から順次排版案内板９１，９２間に送られ、くわえ側版締部２１を解除した後、刷版３はその途中を挟持ローラ９３，９４で挟持された状態でシリンダ装置の駆動により挟持ローラ９３，９４の上動とともに下流側前板１０の上部から本体カバー２の外部へ排版される。 When printing is finished and the plate 3 is discharged, the plate cylinder 4 is rotated so that the holding clamp device 15 is in a predetermined position, and the holding state of the bottom end 22 of the plate cylinder 4 in the bottom plate clamping portion 23 is maintained. Is released. Then, the bottom end portion 22 of the plate cylinder 4 is detached from the plate cylinder 4 due to its elasticity and hits the plate discharge guide body of the tilting plate 97 in a substantially horizontal posture. Next, when the plate cylinder 4 is rotated in the clockwise direction in FIG. 2, the middle part of the printing plate 3 is sequentially separated from the plate cylinder 4, and is sequentially disposed between the plate discharge guide plates 91 and 92 from the bottom end 22 of the printing plate 3. After being released and releasing the gripper side plate clamping portion 21, the printing plate 3 is sandwiched by the sandwiching rollers 93 and 94 in the middle thereof, and the downstream front plate is moved along with the upward movement of the sandwiching rollers 93 and 94 by driving of the cylinder device. The plate is discharged from the upper part of 10 to the outside of the main body cover 2.

上記のように、本発明の実施形態によれば、シリンダ装置３７（伸縮装置の構成部品）の伸長量を検出することで、刷版３のくわえ側端部２０に形成した切欠２７，２８がくわえクランプ装置１５に設けた突起２５，２６に確実に係止したかどうかを検出することができる。また従来の技術では、切欠２７，２８が突起２５，２６に係止したかどうかを検出する検出器を版胴４側に設けていることから、印刷用インキや溶剤の影響を受けて検出器の検出精度が低下してしまうことが考えられた。しかし、本発明の実施形態によれば、検出装置７６は、刷版案内板３１に設けたシリンダ装置３７に取付けたことから、印刷用インキや溶剤の影響を受けることがなく、所定の検出精度を長期にわたって確保することができる。また、従来の印刷機では、版胴に設けられたセンサの電気信号を取出す構成であるため、版胴軸部に信号伝達手段を設ける必要があり構造が複雑になっていた。しかし本発明の実施形態の給版装置Ａ（印刷機）は、刷版３を刷版案内板３１に沿って移動させるシリンダ装置３７のロッド６２の伸縮量（移動量）を検出することで、切欠２７，２８が突起２５，２６に係止したかどうかを検出する構成である。このため、上記従来のような信号伝達手段が不要になり、その分だけ構造を簡素化できる。 As described above, according to the embodiment of the present invention, the notches 27 and 28 formed in the holding-side end portion 20 of the printing plate 3 are detected by detecting the extension amount of the cylinder device 37 (component of the expansion / contraction device). It is possible to detect whether or not the protrusions 25 and 26 provided on the clamp device 15 are securely locked. In the prior art, a detector for detecting whether or not the notches 27 and 28 are locked to the projections 25 and 26 is provided on the plate cylinder 4 side, so that the detector is affected by the printing ink and solvent. It was thought that the detection accuracy of the would decrease. However, according to the embodiment of the present invention, since the detection device 76 is attached to the cylinder device 37 provided on the plate guide plate 31, it is not affected by printing ink or solvent, and has a predetermined detection accuracy. Can be secured over a long period of time. In addition, since the conventional printing press is configured to take out an electrical signal from a sensor provided on the plate cylinder, it is necessary to provide a signal transmission means on the plate cylinder shaft, and the structure is complicated. However, the plate feeding apparatus A (printing machine) according to the embodiment of the present invention detects the expansion / contraction amount (movement amount) of the rod 62 of the cylinder device 37 that moves the plate 3 along the plate guide plate 31. It is configured to detect whether or not the notches 27 and 28 are locked to the protrusions 25 and 26. For this reason, the conventional signal transmission means becomes unnecessary, and the structure can be simplified correspondingly.

なお、上記実施形態では、検出装置７６として有接点式のリードスイッチ（永久磁石式検出スイッチ）を用いたがこれに限定されるものではなく、リードスイッチの代わりに磁気抵抗素子を用いる無接点式のスイッチを用いることもできる。また、上記実施形態では、伸縮装置として、シリンダ装置３８を用いたがこれに限定されず、シリンダ装置３８の変わりに例えばラック・ピニオン機構を設け、ラックをロッド６２の代わりに用いることも可能である。さらに、上記実施形態では、検出装置７６はシリンダ装置３８に付設して、そのロッド６２の伸縮量を検出することで、切欠２７，２８が突起２５，２６に係止したかどうかを検出する構成としたがこれに限定されない。例えば、伸縮装置の一部を構成する吸引装置５０の移動量、例えば、吸引パイプ５１、吸引器５２などの移動量を検出することで、切欠２７，２８が突起２５，２６に係止したかどうかを検出するよう構成することも可能である。何れにしても版胴４のくわえクランプ装置１５に向けて刷版３を移動させる部材の移動量を検出するような構成として、切欠２７，２８が突起２５，２６に係止したかどうかを検出することで、印刷用インキや溶剤の影響を受けることなく所定の検出精度を長期にわたって確保することができ、従来のような信号伝達手段を不要として、その分だけ構造を簡素化することができる。 In the above embodiment, a contact type reed switch (permanent magnet type detection switch) is used as the detection device 76, but the present invention is not limited to this, and a contactless type using a magnetoresistive element instead of the reed switch. The switch can also be used. In the above embodiment, the cylinder device 38 is used as the telescopic device. However, the present invention is not limited to this. For example, a rack and pinion mechanism can be provided instead of the cylinder device 38 and the rack can be used instead of the rod 62. is there. Further, in the above-described embodiment, the detection device 76 is attached to the cylinder device 38 and detects whether the notches 27 and 28 are locked to the protrusions 25 and 26 by detecting the amount of expansion and contraction of the rod 62. However, it is not limited to this. For example, whether the notches 27 and 28 are locked to the protrusions 25 and 26 by detecting the amount of movement of the suction device 50 constituting a part of the expansion / contraction device, for example, the amount of movement of the suction pipe 51 and the suction device 52. It can also be configured to detect whether or not. In any case, whether or not the notches 27 and 28 are locked to the protrusions 25 and 26 is detected as a configuration for detecting the amount of movement of the member that moves the printing plate 3 toward the holding clamp device 15 of the plate cylinder 4. As a result, the predetermined detection accuracy can be ensured over a long period of time without being affected by the printing ink or solvent, the conventional signal transmission means is unnecessary, and the structure can be simplified correspondingly. .

本発明の実施形態を示す印刷機の給版時の動作を示す概略断面図。FIG. 3 is a schematic cross-sectional view showing an operation at the time of plate feeding of the printing press showing the embodiment of the present invention. 同じく排版時の動作を示す概略断面図。The schematic sectional drawing which similarly shows the operation | movement at the time of plate removal. 同じく給版装置を含めた刷版案内板の背面図。Similarly, the rear view of the plate guide plate including the plate feeder. 同じく下流側前板の正面図。The front view of a downstream front board similarly. 同じく給版装置を含めた下流側前板の側面断面図。Side surface sectional drawing of the downstream front board similarly including the plate feeder. 同じく給版装置の一部破断拡大図。The partially broken enlarged view of the plate feeder. 同じく検出装置およびシリンダ装置の断面図。Similarly, sectional drawing of a detection apparatus and a cylinder apparatus. 同じくシリンダ装置の伸長量と切欠および突起の係止状態を示す模式図。The schematic diagram which similarly shows the expansion | extension amount of a cylinder apparatus, and the latching state of a notch and a protrusion. 同じくシリンダ装置の伸長量と切欠および突起の係止状態を示す模式図。The schematic diagram which similarly shows the expansion | extension amount of a cylinder apparatus, and the latching state of a notch and a protrusion. 同じくシリンダ装置の伸長量と切欠および突起の係止状態を示す模式図。The schematic diagram which similarly shows the expansion | extension amount of a cylinder apparatus, and the latching state of a notch and a protrusion.

Explanation of symbols

１…印刷部、２…本体カバー、３…刷版、４…版胴、Ａ…給版装置、１０…下流側前板、１５…くわえクランプ装置、２０…刷版のくわえ側端部、２１…くわえ側版締部、２５，２６…突起、２７，２８…切欠、３０…開口部、３１…刷版案内板、３７…シリンダ装置、３８…制御装置、４０，４１…長孔、５０…吸引装置、５１…吸引パイプ、５２…吸引器、６２…ロッド、６５…支持ブロック体、７２…ブロック位置決め機構、７６…検出装置、８６…遊動部材、９０…排版装置、９１，９２…排版案内板、９３，９４…挟持ローラ、９６…補助案内装置、９７…傾動板、９９…給版案内ローラ DESCRIPTION OF SYMBOLS 1 ... Printing part, 2 ... Main body cover, 3 ... Printing plate, 4 ... Plate cylinder, A ... Plate feeding apparatus, 10 ... Downstream front board, 15 ... Holding clamp apparatus, 20 ... Holding side edge part of printing plate, 21 ... Make-side plate clamping part, 25,26 ... Protrusion, 27,28 ... Notch, 30 ... Opening part, 31 ... Pressure plate guide plate, 37 ... Cylinder device, 38 ... Control device, 40,41 ... Elongated hole, 50 ... Suction device, 51 ... suction pipe, 52 ... suction device, 62 ... rod, 65 ... support block body, 72 ... block positioning mechanism, 76 ... detection device, 86 ... floating member, 90 ... plate ejection device, 91, 92 ... plate ejection guide Plates 93, 94 ... clamping rollers, 96 ... auxiliary guide device, 97 ... tilting plate, 99 ... plate feed guide roller

Claims

A plate feeding device is provided for feeding the printing plate toward the plate cylinder. The plate feeding device is used for moving the printing plate along the printing plate guide plate and a printing plate guide plate for guiding the printing plate. The plate guide plate is moved to the positioning portion provided on the plate cylinder side by driving the expansion and contraction device in a plate feeding posture with the plate guide plate facing the plate cylinder. A printing machine for positioning a positioned portion provided at a side end in a plate feeding direction,
A detection device for detecting the amount of expansion / contraction of the expansion device is provided, and a control device having a function of determining whether the positioned portion is positioned in the positioning portion according to a detection signal from the detection device is provided ,
The control device is a state in which the positioning device is positioned by the positioning device when the detection device detects a preset expansion / contraction amount after the elapse of a predetermined time from the start of driving of the expansion device and the detection state continues. A printing press characterized by having a function of outputting a drive signal so as to hold the holding side end of the printing plate to the driving unit of the holding clamp device .