JP4808488B2 - Pallet for supplying planographic printing plates - Google Patents

Pallet for supplying planographic printing plates Download PDF

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JP4808488B2
JP4808488B2 JP2005365357A JP2005365357A JP4808488B2 JP 4808488 B2 JP4808488 B2 JP 4808488B2 JP 2005365357 A JP2005365357 A JP 2005365357A JP 2005365357 A JP2005365357 A JP 2005365357A JP 4808488 B2 JP4808488 B2 JP 4808488B2
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plate
plates
printing plate
pallet
lithographic printing
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JP2007171293A (en
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裕二 高上
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Mitsubishi Paper Mills Ltd
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Description

本発明は自動給版機構を有する自動製版機における平版印刷版の供給用パレットに関し、特にレーザ光で画像形成を行うレーザダイレクト製版用平版印刷版（以下ＣＴＰ印刷版と記載する）であって、版間に合紙を有さず複数枚積載する平版印刷版供給用パレットに関する。   The present invention relates to a pallet for supplying a lithographic printing plate in an automatic plate making machine having an automatic plate feeding mechanism, in particular, a lithographic printing plate for laser direct plate making (hereinafter referred to as CTP printing plate) for performing image formation with a laser beam, The present invention relates to a lithographic printing plate supply pallet on which a plurality of sheets are stacked without interleaf.

近年、紫外、可視、赤外などの各種レーザーを用いたダイレクト製版システムが実用化され、広く普及している。このダイレクト製版システムはシステムをデジタル化する事によってスピード、コスト、安定性などの面で従来のフィルムを用いた製版システムに比べて有利であり、製版方法として主流となりつつある。   In recent years, direct plate making systems using various lasers such as ultraviolet, visible, and infrared have been put into practical use and are widely spread. This direct plate making system is more advantageous than conventional plate making systems using film in terms of speed, cost, stability, etc. by digitizing the system, and is becoming the mainstream plate making method.

このダイレクト製版システムは、これらの利点から新聞印刷にも広く浸透しつつある。新聞印刷では特定の時間帯に製版が集中することが多く、このことで製版システムにはより効率よく、より早く製版処理できる全自動の製版機が求められている。これらの要望から従来からのフィルム密着露光によるＰＳ版の自動製版機には予め複数、例えば５００枚を専用の積載台に積み上げて、版材メーカーから出荷しそのまま自動製版機にセットするようになっていた。またこれらに用いられるＰＳ版には、一枚毎の合紙除去の時間及び製版機内に蓄積された合紙廃棄の手間の面から非効率となるので、版面保護のための合紙を適用されていない。このことにより、製版ピーク時の連続処理が可能であり、非ピーク時に印刷版の補給を余裕を持って成し得ている。ユーザからは、これらの効率的な自動製版機の機構はＣＴＰ印刷版になっても引き続き継承することが強く要望されている。   This direct plate-making system is spreading widely in newspaper printing because of these advantages. In newspaper printing, plate making is often concentrated at a specific time, and this requires a fully automatic plate making machine that can perform plate making processing more efficiently and quickly. From these demands, the conventional PS plate automatic plate-making machine by film contact exposure has previously been stacked in advance, for example, 500 sheets on a dedicated loading table, shipped from the plate manufacturer, and set as it is on the automatic plate-making machine. It was. In addition, the PS plates used for these are inefficient due to the time taken to remove the interleaf and the time taken to discard the interleaf accumulated in the plate making machine. Not. Thus, continuous processing at the plate making peak is possible, and the printing plate can be replenished with a margin at the non-peak time. There is a strong demand from users that these efficient automatic plate making mechanisms continue to be inherited even when they become CTP printing plates.

ところで、これまでのＰＳ版を用いた製版システムでは水銀ランプなどの非常に高いエネルギーを持つ光源で長時間、密着露光を行なう事により感光層の架橋反応を起こすものであり、ＰＳ版の感度は低いレベルのものであった。レーザダイレクト製版システムではそれに比べて低い露光エネルギーで露光処理を行うため、かなり高感度となっている。これらに用いられるＣＴＰ印刷版としては様々な提案がなされている。   By the way, the conventional plate making system using the PS plate causes a cross-linking reaction of the photosensitive layer by performing a close contact exposure with a light source having a very high energy such as a mercury lamp, and the sensitivity of the PS plate is It was a low level. In the laser direct plate making system, the exposure processing is performed with a lower exposure energy than that, so the sensitivity is considerably high. Various proposals have been made for CTP printing plates used for these.

例えば特開平７−２０６２９号公報に記載の感光性材料はレゾール樹脂、ノボラック樹脂および潜伏性ブロンステッド酸、赤外吸収剤を含む事を特徴とし、ポジ版にもネガ版にも利用出来る平版印刷版について記載されている。また、特開２０００−０８９４５２号公報には架橋性を有する化合物が独自の構造であり、バインダーがヒドロキシ基またはアルコキシ基が直接結合した芳香族炭化水素環を側鎖又は主鎖に有するポリマーで、かつ熱により酸を発生する化合物と赤外線吸収剤を含むネガ型画像記録材料について記載されている。また、特開２００１−２７２７７８号公報にはボレート錯塩とトリハロアルキル置換化合物および近赤外光から赤外光領域の波長範囲において吸収を有する増感色素を併せて含むことを特徴とした感光材料について記載されている。   For example, the photosensitive material described in JP-A-7-20629 is characterized in that it contains a resole resin, a novolak resin, a latent Bronsted acid, and an infrared absorber, and can be used for both positive and negative plates. The version is described. JP-A-2000-089452 discloses a cross-linkable compound having a unique structure, and a binder is a polymer having an aromatic hydrocarbon ring directly bonded to a hydroxy group or an alkoxy group in a side chain or main chain, In addition, a negative image recording material containing a compound that generates an acid by heat and an infrared absorber is described. JP-A-2001-272778 discloses a photosensitive material comprising a borate complex salt, a trihaloalkyl-substituted compound, and a sensitizing dye having absorption in a wavelength range from near infrared light to infrared light. Are listed.

しかしながらこれら高感度なＣＴＰ印刷版では上記自動製版機において、いくつかの問題が生じていた。高感度なＣＴＰ印刷版では膜面の感受性もＰＳ版に比べ上昇していること、またＰＳ版に比べ感光層構成も複雑化、多要素化しており、膜面自身の硬度低下やタック性の発現などのために版間に合紙を入れることが版間分離性や傷付き防止に有効で好ましいが、上記理由から版間に合紙を挟まず複数枚積載すると、膜面への傷付き易さ及びその傷による製版への影響が大きいことや、版間密着が強く特に経時により版間分離がうまくいかず多数枚給版が発生するなど不都合が生じる場合があった。   However, these high-sensitivity CTP printing plates have some problems in the automatic plate making machine. High-sensitivity CTP printing plates have increased film surface sensitivity compared to PS plates, and the photosensitive layer structure has become more complex and multi-component than PS plates. Inserting interleaving paper between plates for manifestation is effective and preferable for separation between plates and prevention of scratches. However, if a plurality of interleaving papers are stacked between the plates for the above reasons, the film surface will be damaged. There may be inconveniences such as the ease of the process and the effect of scratches on the plate making, and the strong contact between the plates, especially the separation of the plates failing over time and the occurrence of a large number of plates.

これら問題を解消するために、ＣＴＰ印刷版にマット剤を添加することや自動製版機で版間分離をより促進する手段を付設すること、例えば圧縮空気を版間に吹き付けることや、印刷版を持ち上げる際に側面にブラシを付勢することなど種々検討がなされ、有効性が確認、適用されている（特許文献１）。  In order to solve these problems, a matting agent is added to the CTP printing plate, a means for further promoting separation between plates by an automatic plate making machine, for example, compressed air is blown between the plates, and the printing plate is removed. Various studies have been made such as urging a brush on the side surface when lifting, and its effectiveness has been confirmed and applied (Patent Document 1).

しかし、これらの手段でも積載後長期経時されたものなど完全に多数枚給版が要望できない場合があった。また自動製版機に対応する装置を取り付ける必要があり、装置の小型化が成し得ず、自動製版機の設置面積の減縮を求める市場要望には応えられなかった。一方、パレット積載後に輸送を行う場合には積載された平版印刷版の束が慣性力によりパレット載置面からズレが生じる場合があり、予防するために結束固定することが一般的に行われているが、結束力を強くすると版間分離性が悪くなるという悪循環が発生していた。
特開平０９−０８０７５９号公報 However, there are cases in which it is not possible to request a completely large number of plates even if these means are used for a long time after loading. In addition, it is necessary to attach a device corresponding to the automatic plate making machine, and the size of the device cannot be reduced, and the market demand for reducing the installation area of the automatic plate making machine cannot be met. On the other hand, when transporting after pallet loading, the bundle of loaded lithographic printing plates may be displaced from the pallet placement surface due to inertial force. However, when the binding force was increased, a vicious circle occurred in which the separation between plates deteriorated.
JP 09-080759 A

上記問題を鑑み本発明の課題は、特にパレット上に複数枚載置された平版印刷版を一枚毎に給版を行う自動給版機構を有する自動製版機において、輸送時の版束と積載面でのズレを抑制しつつ、パレット上の平版印刷版の版間の分離性の向上させて、給版に関する不具合の発生を抑制し、かつ自動製版装置の小型化を可能とする平版印刷版供給用パレットを提供することである。   In view of the above problems, an object of the present invention is to provide an automatic plate making machine having an automatic plate feeding mechanism that feeds a plurality of lithographic printing plates placed on a pallet one by one. A lithographic printing plate that improves separation between lithographic printing plates on a pallet while suppressing surface misalignment, suppresses the occurrence of problems related to plate feeding, and enables downsizing of automatic plate making equipment It is to provide a supply pallet.

本発明の上記目的は以下に記載の平版印刷版供給用パレットによって達成できることを見いだした。
１．自動製版装置へ装着され、自動製版装置の給版機構により一枚毎に供給するための平版印刷版供給用パレットにおいて、平版印刷版の載置面の平版印刷版の周囲部分が載る一部であって、平版印刷版の中心に対して対向する位置にある少なくとも一対の部分を上下動させる手段を有することを特徴とする平版印刷版供給用パレット。 It has been found that the above object of the present invention can be achieved by the lithographic printing plate supply pallet described below.
1. It mounted to the automatic plate making apparatus, the lithographic printing plate supplying pallets to be supplied to each one by the plate supplying mechanism of an automatic plate making apparatus, a part of the peripheral part of the lithographic printing plate mounting surface of the lithographic printing plate rests A lithographic printing plate supply pallet comprising means for moving up and down at least a pair of portions located at positions opposed to the center of the lithographic printing plate.

本発明により、パレット上に複数枚載置された平版印刷版を一枚毎に、自動給版機構を有する自動製版機において、輸送時の版束ズレを抑制しつつ簡便に版間分離を促進することが出来、給版に関する不具合の発生を抑制可能となるため、長期間安定した製版の実施及びそれに伴う生産性の向上やコストダウン、及び自動製版機に複雑な機構を設置することなく自動製版機の製作コストの低減が図られる、小型化が図られ設置面積の減縮が達成出来るなど秀逸な効果を得ることができる。   According to the present invention, in an automatic plate-making machine having an automatic plate feeding mechanism for each lithographic printing plate placed on a pallet one by one, the separation between plates is easily promoted while suppressing the deviation of the plate bundle during transportation. Since it is possible to suppress the occurrence of problems related to plate feeding, it is possible to perform plate making stably for a long period of time, improve productivity and reduce costs, and automatically without installing complicated mechanisms in the automatic plate making machine. The production cost of the plate-making machine can be reduced, and excellent effects can be obtained such as downsizing and reduction of the installation area.

本発明者が鋭意検討した結果、上記課題に対して平版印刷版供給用パレットにおいて、平版印刷版の載置面の一部が上下動する手段を有することが有用である事が明らかになった。   As a result of intensive studies by the inventor, it has become clear that it is useful to have a means for moving a part of the mounting surface of the planographic printing plate up and down in the planographic printing plate supply pallet for the above problem. .

以下に本発明におけるパレット及び本発明に係わる自動製版機について図１〜図３を用いて説明する。図１は本発明の一例を示す自動製版機の給版部の概略断面図である。図１において、平版印刷版２が感光層面を上側にして版間に合紙を含まず５００枚積載されているパレット１が自動製版機の所定位置に装填されている。パレット１の上部に平版印刷版２を一枚毎に吸着して搬送するピックアップ手段３があり、ピックアップ手段３はフレーム３１、フレーム上下動機構３２、吸着パット３３、捌きブロア３４、制御部３５から構成されている。   The pallet according to the present invention and the automatic plate making machine according to the present invention will be described below with reference to FIGS. FIG. 1 is a schematic cross-sectional view of a plate feeding portion of an automatic plate making machine showing an example of the present invention. In FIG. 1, a pallet 1 on which lithographic printing plates 2 are loaded with 500 photosensitive layers facing upward and not including interleaving paper between plates is loaded at a predetermined position of an automatic plate making machine. There is a pickup means 3 that sucks and conveys the lithographic printing plate 2 one by one on the upper part of the pallet 1. It is configured.

給版動作は、ピックアップ手段３が上方所定位置（図中Ａ）からピックアップ位置（図中Ｂ）まで、図示しないセンサーにより位置検知することにより下降するようになっている。版数が減少するとそれに伴いピックアップ手段３の下降量が多くなる。吸着パット３３が平版印刷版２に接触し、真空吸着を開始する。吸着パット３３の内、最外部のパット組（図中３３１、３３２）のみが上昇、下降を複数回実施し、版間分離動作を開始する。このときに捌きブロア３４から圧縮空気が積載された平版印刷版２の側面に向けて噴出され、版間に空気を流入させて版間分離を促進するようになっている。その後ピックアップ手段３はフレーム上下動機構３２により上昇し上方所定位置に移動する。   In the plate feeding operation, the pickup means 3 is lowered by detecting the position from a predetermined upper position (A in the figure) to the pickup position (B in the figure) by a sensor (not shown). As the number of plates decreases, the amount of lowering of the pickup means 3 increases accordingly. The suction pad 33 contacts the planographic printing plate 2 and starts vacuum suction. Of the suction pads 33, only the outermost pad group (331, 332 in the figure) is raised and lowered a plurality of times, and the plate separation operation is started. At this time, compressed air is ejected from the blower blower 34 toward the side surface of the planographic printing plate 2 on which the air is loaded, and air is introduced between the plates to promote separation between the plates. Thereafter, the pickup means 3 is raised by the frame vertical movement mechanism 32 and moved to a predetermined position above.

図２は本発明の一例を示すパレットの上面概略図、図３は断面概略図である。パレット１は、架台１３、平版印刷版載置部１２、昇降部１１及びジャッキ装置１４から構成されている。パレット１は載置面を最下限として上下動可能な昇降部１１を平版印刷版２の周囲各辺に１個、合計４個有している。昇降部１１はジャッキ装置１４の上下動作がヒンジ１１１を支点としての回転運動に変換されて、載置されている平版印刷版の一部を持ち上げる動きとなる。平版印刷版の載置面の一部が上下動することで積載される平版印刷版の一部が持ち上げられ、また戻されることとなり、版間で緩やかな摺動が発生し、分離性が向上する。また昇降部１１はその一部持ち上げられる平版印刷版に部分的なストレスを与えて局所的なへこみを生じさせないため、出来るだけ広面積、例えばＣＴＰ印刷版の面積の１／２０〜１／２の範囲であることが好ましい。   FIG. 2 is a schematic top view of a pallet showing an example of the present invention, and FIG. 3 is a schematic cross-sectional view. The pallet 1 includes a gantry 13, a lithographic printing plate placement unit 12, an elevating unit 11, and a jack device 14. The pallet 1 has a total of four elevating parts 11 that can move up and down with the loading surface as the lowest limit, one on each side of the planographic printing plate 2. The elevating unit 11 moves up and down of the jack device 14 into a rotational motion with the hinge 111 as a fulcrum, and lifts a part of the lithographic printing plate placed thereon. When a part of the lithographic printing plate mounting surface moves up and down, a part of the loaded lithographic printing plate is lifted and returned, which causes loose sliding between the plates and improves separation. To do. Further, since the lifting and lowering portion 11 applies partial stress to the lithographic printing plate that is partially lifted so as not to cause local dents, it is as large as possible, for example 1/20 to 1/2 of the area of the CTP printing plate. A range is preferable.

ジャッキ装置１４は、変位軸が最下点を原点位置として上昇及び下降を自在に行うものであり、ギアを組み合わせた機械式で手動もしくは電動の駆動力によるものや、油圧もしくは空気圧式のものを適宜用いることができる。   The jack device 14 is a device in which the displacement axis can freely move up and down with the lowest point as the origin position, and is a mechanical type that combines gears with a manual or electric driving force, or a hydraulic or pneumatic type. It can be used as appropriate.

昇降部１１の動作としては、載置面が水平位置から最大上昇部が２０ｍｍまでが好ましく、より好ましくは１０ｍｍ以下である。上昇位置が大きくなるとそれに伴い、版間の摺動が多くなり、版面へのストレスが多くなるため、マット剤を用いていないものや膜面強度の弱い平版印刷版の場合には、製版性、印刷性に悪影響を及ぼす可能性がある。また昇降部１１を上げすぎると平版印刷版にカールや角折れ様の歪みが生じ、以降の工程で搬送不良や印刷機に装着する際に支障を生じる場合があるため、載置面に対して４５度以下となる高さで使用することが好ましい。   As operation | movement of the raising / lowering part 11, it is preferable that a mounting surface is up to 20 mm from a horizontal position to a maximum raise part, More preferably, it is 10 mm or less. As the ascending position increases, the sliding between the plates increases accordingly, and the stress on the plate surface increases, so in the case of a lithographic printing plate that does not use a matting agent or a weak film surface strength, Printability may be adversely affected. Further, if the elevating unit 11 is raised too much, curling and corner-like distortion may occur in the lithographic printing plate, which may cause trouble in transportation and mounting on the printing machine in the subsequent processes. It is preferable to use at a height of 45 degrees or less.

さらに、各辺や角部に設置された昇降部１１と平版印刷版の中心に対して対向する位置にある昇降部１１が同時に同じ量の動きを行うことが好ましい。これは版材の一部が上昇し対向する部分がない場合には傾斜が生じることで版ズレなど不都合が生じるためである。昇降部１１の動作は適宜実施することが出来るが、上記理由から出来るだけ少ない回数が好ましい。上記例のように版間分離性を促進するブロア装置を有する自動製版機の場合には、平版印刷版の出荷時に昇降部１１を上昇させておき、自動製版機に装填するときに水平位置に戻すことが好適である。この場合には、出荷後輸送中に発生する恐れのあった慣性力による平版印刷版の束と載置面とのズレも抑制出来る。
Furthermore, it is preferable that the elevating unit 11 installed at each side or corner and the elevating unit 11 at a position facing the center of the planographic printing plate simultaneously perform the same amount of movement. This is because, when a part of the plate material rises and there is no opposite portion, an incline is caused, resulting in inconvenience such as plate displacement. Although operation | movement of the raising / lowering part 11 can be implemented suitably, the frequency | count as few as possible is preferable for the said reason. In the case of an automatic plate-making machine having a blower device that promotes separation between plates as in the above example, the elevating unit 11 is raised at the time of shipment of the planographic printing plate, and is placed in a horizontal position when loaded into the automatic plate-making machine. It is preferable to return. In this case, it is possible to suppress the deviation between the bundle of planographic printing plates and the mounting surface due to the inertial force that may occur during transportation after shipment.

次に本発明に使用される平版印刷版については、市販の各種ＰＳ版、ＣＴＰ印刷版を用いることが出来るが、特に高感度なＣＴＰ版について好適に用いることが出来る。ＣＴＰ印刷版は、レーザ光によりダイレクトに画像イメージを描画し、潜像もしくは画像形成がなされる物であれば使用可能であり、ネガタイプ、ポジタイプ共に適用可能である。合紙を用いないことから、最上層として例えばポリビニルアルコール樹脂を主体とした保護層を有するものも支障無く使用出来る。また特にマット剤を含有した平版印刷版であればより有効に用いることが出来る。   Next, as the lithographic printing plate used in the present invention, various commercially available PS plates and CTP printing plates can be used, but particularly high sensitivity CTP plates can be preferably used. The CTP printing plate can be used as long as it can draw an image image directly with a laser beam to form a latent image or image, and can be applied to both a negative type and a positive type. Since no interleaving paper is used, an uppermost layer having a protective layer mainly composed of, for example, polyvinyl alcohol resin can be used without any trouble. In particular, a planographic printing plate containing a matting agent can be used more effectively.

ＣＴＰ印刷版としては、例えば特開平７−２０６２９号公報に記載の感光性材料、特開２０００−０８９４５２号に公報の記載の感光材料、特開２００１−２７２７７８号公報記載の感光材料や、銀塩ＤＴＲ方式のもの、有機半導体を用いた電子写真現像方式のものを用いることが出来る。   Examples of the CTP printing plate include a photosensitive material described in JP-A-7-20629, a photosensitive material described in JP-A-2000-089452, a photosensitive material described in JP-A-2001-272778, and a silver salt. A DTR type or an electrophotographic development type using an organic semiconductor can be used.

以下実施例により本発明をさらに詳しく説明するが、効果はもとより本発明はこれら実施例に限定されるものではない。   The present invention will be described in more detail with reference to the following examples. However, the present invention is not limited to these examples as well as the effects.

以下に本実施におけるパレット及び本発明に係わる自動製版機について図１〜図３を用いて説明する。図１は本発明の一例を示す自動製版機の給版部の概略断面図である。図１において、平版印刷版２が感光層面を上側にして版間に合紙を含まず５００枚積載されているパレット１が自動製版機の所定位置に装填されている。パレット１の上部に平版印刷版２を一枚毎に吸着して搬送するピックアップ手段３があり、ピックアップ手段３はフレーム３１、フレーム上下動機構３２、吸着パット３３、捌きブロア３４、制御部３５から構成されている。   Hereinafter, the pallet in the present embodiment and the automatic plate making machine according to the present invention will be described with reference to FIGS. FIG. 1 is a schematic cross-sectional view of a plate feeding portion of an automatic plate making machine showing an example of the present invention. In FIG. 1, a pallet 1 on which lithographic printing plates 2 are loaded with 500 photosensitive layers facing upward and not including interleaving paper between plates is loaded at a predetermined position of an automatic plate making machine. There is a pickup means 3 that sucks and conveys the lithographic printing plate 2 one by one at the top of the pallet 1, and the pickup means 3 includes a frame 31, a frame vertical movement mechanism 32, a suction pad 33, a burning blower 34, and a control unit 35. It is configured.

給版動作は、ピックアップ手段３が上方所定位置（図中Ａ）からピックアップ位置（図中Ｂ）まで、図示しないセンサーにより位置検知することにより下降するようになっている。版数が減少するとそれに伴いピックアップ手段３の下降量が多くなる。吸着パット３３が平版印刷版２に接触し、真空吸着を開始する。吸着パット３３の内、最外部のパット組（図中３３１、３３２）のみが上昇、下降を複数回実施し、版間分離動作を開始する。このときに捌きブロア３４から圧縮空気が積載された平版印刷版２の側面に向けて噴出され、版間に空気を流入させて版間分離を促進するようになっている。その後ピックアップ手段３はフレーム上下動機構３２により上昇し上方所定位置に移動するようになっている。   In the plate feeding operation, the pickup means 3 is lowered by detecting the position from a predetermined upper position (A in the figure) to the pickup position (B in the figure) by a sensor (not shown). As the number of plates decreases, the amount of lowering of the pickup means 3 increases accordingly. The suction pad 33 contacts the planographic printing plate 2 and starts vacuum suction. Of the suction pads 33, only the outermost pad group (331, 332 in the figure) is raised and lowered a plurality of times, and the plate separation operation is started. At this time, compressed air is ejected from the blower blower 34 toward the side surface of the planographic printing plate 2 on which the air is loaded, and air is introduced between the plates to promote separation between the plates. Thereafter, the pickup means 3 is raised by the frame vertical movement mechanism 32 and moved to a predetermined position above.

図２は本発明の一例を示すパレットの上面概略図、図３断面概略図である。パレット１は、架台１３、平版印刷版載置部１２、昇降部１１及びジャッキ装置１４から構成されている。パレット１は載置面を最下限として上下動可能な昇降部１１を平版印刷版２の周囲各辺に１個、合計４個有している。昇降部１１はジャッキ装置１４の上下動作をヒンジ１１１を支点として回転運動に変換することで載置されている平版印刷版の一部を持ち上げる動きとなるようになっている。平版印刷版の載置面の一部が上下動することで積載される平版印刷版の一部が持ち上げられ、また戻されることとなり、版間で緩やかな摺動が発生し、分離性が向上するようになっている。   FIG. 2 is a schematic top view of a pallet showing an example of the present invention, and is a schematic cross-sectional view of FIG. The pallet 1 includes a gantry 13, a lithographic printing plate placement unit 12, an elevating unit 11, and a jack device 14. The pallet 1 has a total of four elevating parts 11 that can move up and down with the loading surface as the lowest limit, one on each side of the planographic printing plate 2. The elevating unit 11 moves up and down the jack device 14 by converting the vertical movement of the jack device 14 into a rotational motion with the hinge 111 as a fulcrum. When a part of the lithographic printing plate mounting surface moves up and down, a part of the loaded lithographic printing plate is lifted and returned, which causes loose sliding between the plates and improves separation. It is supposed to be.

（実施例１）
上記の自動製版機及び本発明のパレットを用いて、平版印刷版は特開２００２−２７８０８５号公報の実施例１記載の方法で作製したＣＴＰ印刷版について、積載時に昇降部１１を各４個共に載置面より最大部で１０ｍｍまで上昇させて合紙を挟まずに５００枚積載した。自動製版機に装填する際には、昇降部１１を水平位置まで下降させた後に、５００枚連続して自動製版処理を実施したが、平版印刷版の版間の分離性は良好であり、また平版印刷版に角折れ様の歪みも生じず、給版部での不具合の発生は見られなかった。 (Example 1)
Using the automatic plate making machine and the pallet of the present invention, the lithographic printing plate is a CTP printing plate produced by the method described in Example 1 of JP-A No. 2002-278085. A maximum of 10 mm was lifted from the placement surface, and 500 sheets were stacked without sandwiching the interleaving paper. When loading the automatic plate making machine, the plate-making part 11 was lowered to the horizontal position and then the automatic plate making process was carried out continuously for 500 sheets. However, the separation between the lithographic printing plates was good, The lithographic printing plate did not have corner-like distortion, and no defects were observed in the plate feeding section.

（実施例２）
さらに、ＣＴＰ印刷版の積載時に昇降部１１を各４個共に載置面より最大１０ｍｍ上昇させてＣＴＰ印刷版を５００枚積載した状態のパレットを温度５０℃の環境下で１週間保管したものを用いて、自動製版機に装填する際には、昇降部１１を水平位置まで下降させた後に、上記同様に自動製版を実施したが、実施例１と同様に一度も多数枚給版等の不具合の発生は見られなかった。 (Example 2)
Furthermore, when the CTP printing plate is loaded, the four elevating parts 11 are raised by 10 mm at the maximum from the loading surface, and a pallet in which 500 CTP printing plates are loaded is stored for one week in an environment of 50 ° C. When using the automatic plate making machine, after the elevating unit 11 was lowered to the horizontal position, the automatic plate making was carried out in the same manner as described above. The occurrence of was not seen.

（比較例１、比較例２）
一方、比較として、平版印刷版は特開２００２−２７８０８５号公報の実施例１記載の方法で作製した平版印刷版について、昇降部１１を有さないパレットを用いた他は実施例１と同様に５００枚連続処理を実施したところ、５００枚中、数回の多数枚給版が発生した。さらに実施例２と同様に実施したところ、多数枚給版が多発し、特に残版数が１００版以下では頻度多く使用に堪えなかった。 (Comparative Example 1 and Comparative Example 2)
On the other hand, as a comparison, the lithographic printing plate was the same as in Example 1 except that a lithographic printing plate produced by the method described in Example 1 of JP-A-2002-278085 was used, except that a pallet without the lifting / lowering part 11 was used. When 500 sheets were continuously processed, several 500 plates were generated out of 500 sheets. Furthermore, when the same operation as in Example 2 was carried out, a large number of plates were frequently supplied, and particularly when the number of remaining plates was 100 plates or less, the plate could not be used frequently.

また、ＣＴＰ印刷版の積載時に昇降部１１を各４個共に載置面より最大部で水平面（載置面）より１０ｍｍ上昇させてＣＴＰ印刷版を５００枚積載した状態の本発明のパレットＡと同様に５００枚を積載した昇降部を有さないパレットＢについて、それぞれ同様な遮光梱包を施し輸送トラックに積載し１００ｋｍの道のりでの輸送試験を実施した。パレットＡは規定位置のままであったが、パレットＢでは平版印刷版の束が平版印刷版積載部の規定位置よりズレが生じていた。   In addition, when loading the CTP printing plate, the pallet A of the present invention in a state in which 500 CTP printing plates are stacked with the four lifting parts 11 each being raised by 10 mm from the horizontal surface (mounting surface) at the maximum part from the mounting surface. Similarly, pallets B loaded with 500 sheets and having no lifting part were each subjected to the same light-shielding packaging, loaded on a transportation truck, and subjected to a transportation test on a 100 km road. Pallet A remained at the specified position, but in pallet B, the bundle of planographic printing plates was displaced from the specified position of the planographic printing plate stacking unit.

本発明の活用例として、ダイレクト製版が可能であり、かつ、パレット上に複数枚載置された平版印刷版を一枚毎に給版を行う自動給版機構を有する自動製版機において、パレット上の平版印刷版の位置ずれを簡便に防止し、給版に関する不具合の発生を抑制することが出来、生産性の高い製版を実施することが可能となる。   As an application example of the present invention, in an automatic plate making machine having an automatic plate feeding mechanism capable of direct plate making and feeding a plurality of planographic printing plates placed on a pallet one by one, Therefore, it is possible to easily prevent misalignment of the lithographic printing plate, to suppress the occurrence of defects relating to the plate feeding, and to perform plate making with high productivity.

本発明の一例を示す自動製版機の給版部の概略断面図である。It is a schematic sectional drawing of the plate feeding part of the automatic plate making machine which shows an example of this invention. 本発明の一例を示すパレットの上面概略図である。It is the upper surface schematic of the pallet which shows an example of this invention. 本発明の一例を示すパレットの断面概略図である。It is the cross-sectional schematic of the pallet which shows an example of this invention.

符号の説明Explanation of symbols

１ パレット
１１ 昇降部
１１１ ヒンジ
１２ 平版印刷版載置部
１３ 架台
１４ ジャッキ装置
２ 平版印刷版（ＣＴＰ印刷版）
３ ピックアップ手段
３１ フレーム
３２ フレーム上下動機構
３３ 吸着パット
３３１、３３２ 最外部の吸着パット組
３４ 捌きブロア
３５ 制御部
Ａ 上方所定位置
Ｂ ピックアップ位置 DESCRIPTION OF SYMBOLS 1 Pallet 11 Lifting part 111 Hinge 12 Planographic printing plate mounting part 13 Base 14 Jack apparatus 2 Planographic printing plate (CTP printing plate)
3 pickup means 31 frame 32 frame vertical movement mechanism 33 suction pad 331, 332 outermost suction pad group 34 firing blower 35 control unit A upper predetermined position B pickup position

Claims (1)

自動製版装置へ装着され、自動製版装置の給版機構により一枚毎に供給するための平版印刷版供給用パレットにおいて、平版印刷版の載置面の平版印刷版の周囲部分が載る一部であって、平版印刷版の中心に対して対向する位置にある少なくとも一対の部分を上下動させる手段を有することを特徴とする平版印刷版供給用パレット。 It mounted to the automatic plate making apparatus, the lithographic printing plate supplying pallets to be supplied to each one by the plate supplying mechanism of an automatic plate making apparatus, a part of the peripheral part of the lithographic printing plate mounting surface of the lithographic printing plate rests A lithographic printing plate supply pallet comprising means for moving up and down at least a pair of portions located at positions opposed to the center of the lithographic printing plate.
JP2005365357A 2005-12-19 2005-12-19 Pallet for supplying planographic printing plates Expired - Fee Related JP4808488B2 (en)

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JP3194991B2 (en) * 1991-05-30 2001-08-06 大日本印刷株式会社 Exposure equipment
JPH0854730A (en) * 1994-08-09 1996-02-27 Canon Inc Plate making method and plate making device
JP2001113849A (en) * 1999-08-11 2001-04-24 Toray Ind Inc Imaging medium, positioning method thereof, imaging method, imaging device and printer
JP2003171022A (en) * 2001-12-05 2003-06-17 Dainippon Screen Mfg Co Ltd Paper feeder
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