JP3657140B2 - Photosensitive material processing equipment - Google Patents

Photosensitive material processing equipment Download PDF

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Publication number
JP3657140B2
JP3657140B2 JP8246999A JP8246999A JP3657140B2 JP 3657140 B2 JP3657140 B2 JP 3657140B2 JP 8246999 A JP8246999 A JP 8246999A JP 8246999 A JP8246999 A JP 8246999A JP 3657140 B2 JP3657140 B2 JP 3657140B2
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Japan
Prior art keywords
roller
processing
processing unit
frame
photosensitive material
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JP8246999A
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JP2000275866A (en
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雅治 木村
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Screen Holdings Co Ltd
Dainippon Screen Manufacturing Co Ltd
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Screen Holdings Co Ltd
Dainippon Screen Manufacturing Co Ltd
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  • Photosensitive Polymer And Photoresist Processing (AREA)

Description

【0001】
【産業上の利用分野】
この発明は、感光材料を処理液で処理する感光材料処理装置に関する。
【0002】
【従来の技術】
一般的な感光材料処理装置では感光材料を処理する複数の処理部を有する。この処理部としては、感光材料を予め処理液が貯留した処理槽内に通過させる浸積方式と、空中を搬送される感光材料に対し処理液を流下させる塗布方式とがある。上記いずれの方式でも感光材料は複数の搬送ローラ対により挟持して搬送される。
前記搬送ローラ対としては対向して配置された1対の搬送ローラが用いられるが、各処理部の最終の搬送ローラ対は、処理液を感光材料表面から絞りとる絞りローラ対としても機能する。これは後段の処理部に前段の処理液を極力持ち込まないようにするためである。例えば現像液を有する現像処理部の最終搬送ローラ対で感光材料表面上の余分な現像液を絞りとり、後段の定着処理部に搬送するようにしている。
【0003】
一方、感光材料を乾燥処理する乾燥処理部の前段にも、乾燥処理をより効率良く行うため処理液を絞り取るための絞りローラ対が設けられる。例えば感光フィルムを現像処理するフィルム用の処理装置では、乾燥処理部前段の水洗処理部をでた感光フィルムから余分な水分を絞りとるように絞りローラ対が設けられる。またPS版などの印刷版を現像処理する印刷版用の処理装置では、ガム液供給後、感光材料上の余分なガム液を取り除き版面上に均一なガム膜を形成する搬送ローラ対が設けられている。
【0004】
【発明が解決しようとする課題】
前記絞りローラ対として用いられる搬送ローラは、ローラ周面に絞りとった処理液が乾燥して固化するため、常時処理液内に浸積された搬送ローラなどに比べると汚れが生じやすかった。これは処理部間に設けられたガイド部材も同様である。従って、処理装置を停止するような1日の作業終了時や週末などには、上記搬送ローラやガイド部材などの搬送部材を取り外して洗浄することが多い。また前記印刷版用の処理装置におけるガム処理部の搬送ローラは、搬送ローラ同士がガム液により固着してしまうのを防止するため、作業終了時に上側の搬送ローラを取り外したり、リフトアップしておく場合がある。
【0005】
上述したように搬送ローラやガイド部材の一部を装置外に取り外した場合、作業者が再度取り付けることを忘れてしまい、当該搬送ローラやガイド部材が未装着のまま装置を稼働してしまうことがあった。例えば週末において前記ガム処理部の搬送ローラを固着しないよう取り外したが、翌週の作業開始前に取り付けを忘れたまま処理装置を稼働してしまう場合などである。
【0006】
このような場合は、感光材料の搬送がうまく行かずジャムが発生し、最悪の場合は装置の破損原因になるという問題があった。また印刷版用の処理装置におけるガム処理部の上側搬送ローラをとりはずしたままであれば、印刷版の搬送自体は阻害されることはないが、ガム液が絞りとられることなく乾燥処理部に流れてしまうため、余分なガム液が乾燥ヒータやファンなどに流下して装置の破損や汚染の原因になる。
本発明は上記課題を解決するためになされたものであり、搬送ローラやガイド部材などの搬送部材の装着忘れを防止することができる感光材料処理装置を提供することを目的とする。
【0007】
【課題を解決するための手段】
請求項1に記載の発明は、感光材料を下ローラと上ローラとを含む一対の搬送ローラによって、処理液を供給して処理を行う処理部内を搬送する感光材料処理装置であって、前記処理部の内部と外部とを区画するフレームと、前記下ローラを回転自在に軸支する第1軸受部材と、前記上ローラを回転自在に軸支する第2軸受部材と、前記フレームに固着され、前記第2軸受部材を着脱自在に保持する保持部材と、前記フレームの外側に固定された磁気検知スイッチと、前記フレームと前記保持部材とに形成された窓部を通って前記装着部材内に突出する一端と、前記磁気検知スイッチに対して対向する他端とを有し、前記処理部の外側で前記フレームに取り付けられた台座を中心に上下方向に回動自在に配置された移動部材とを有し、前記保持部材に前記上ローラが装着されていないときには、前記移動部材は、その自重により前記他端が前記磁気検知スイッチから離間する位置であり、前記保持部材に前記上ローラが装着されるときには、前記上ローラの自重により前記移動部材の前記一端が押動されて、前記移動部材が回動し、前記移動部材の前記他端が前記磁気検知スイッチに向けて移動することにより前記上ローラの装着状態を検出することを特徴とする
【0009】
【発明の実施の形態】
以下、この発明の実施の形態を図面に基づいて説明する。
図1は本発明の実施の形態に係る感光材料処理装置としての印刷版処理装置の構成を示す図であり、装置主要部の側断面と処理液の配管とを示している。図において印刷版処理装置は、印刷版に対し現像処理を行う現像処理部1と、水洗処理を行う水洗処理部2と、ガム処理を行うガム処理部3と、乾燥処理を行う乾燥処理部4とが直列的に配置されており、順次各処理部に渡って印刷版が搬送されるように構成されている。
【0010】
現像処理部1は、図示しない温調手段により温調しながら現像液を貯留する現像液槽5と、この現像液槽5に印刷版を搬送するための複数の搬送ローラ6およびガイド部材7とを有する。また現像液槽5内には、現像液中にて印刷版の表面を擦り処理するため、表面に細かい繊維が毛羽だったモルトンやブラシ毛を備えたスクラブローラ8が配置されている。この搬送ローラ6およびスクラブローラ8は、後述する水洗処理部2、ガム処理部3および乾燥処理部4の各搬送ローラ15、22、30をも含めて、図示しない共通の駆動手段により同期して回転駆動される。
なおスクラブローラ8の擦り効果を向上させるため、スクラブローラ8だけを他の駆動手段により異なる速度で回転させてもよい。
【0011】
さらに現像液槽5内には搬送される印刷版に対し均一に現像液を吹き付けるためのスプレーパイプ9が設けられている。このスプレーパイプ9には、現像液槽5の底面に設けた排出孔から循環ポンプ10により吸引した現像液が、異物を除去するためのフィルター11を通って吐出されるように構成されている。なお前記現像液槽5の底部に設けられた排出孔から循環ポンプ9に至る配管路の途中には、排出弁12が設けられており現像液槽5内の現像液を廃液タンク13へ排出することができる。
【0012】
また現像液槽5の後流側には、当該現像液槽5の後端側からオーバーフローした現像液を受けるオーバーフロー部14が設けられており、このオーバーフロー部14に流下した現像液は前記廃液タンク13に排出される。
【0013】
水洗処理部2には、印刷版を搬送するための2対の搬送ローラ15と、印刷版に水洗水を吐出するため前記搬送ローラ15の間に配置された2組の水洗水吐出パイプ16と、流下した水洗水を受けて貯留するための水洗水槽17とを有する。
前記水洗水吐出パイプ16には、水洗水槽17の底面に設けた排出孔から循環ポンプ18により吸引した水洗水が、異物除去用のフィルター19を通って吐出されるよう配管されている。前記水洗水吐出パイプ16には印刷版の幅方向に沿って水洗水をシャワー状に吐出する図示しない複数のノズルが形成されている。そして前記ノズルは水洗水を搬送ローラ15と印刷版との両方に対し吐出可能なように方向付けられており、具体的には上下に対向配置した搬送ローラ15の当接部近傍に向けられている。このため印刷版が搬送されていない場合は、水洗水吐出パイプ16から直接搬送ローラ15に対し水洗水が吐出されることになる。
【0014】
また前記水洗水槽17の底部に設けられた排出孔から循環ポンプ18に至る配管路の途中には、水洗水槽17内の水洗水を前記廃液タンク13へ排出するための排出弁20も設けられている。さらに水洗水槽17には、槽内での水洗水量を一定に保つためのオーバーフロー管21が設けられており、一定量を越えた水洗水も前記廃液タンク13に排出される。
なお上記水洗処理部2は、薬品成分を含まない単なる水洗水による水洗処理だけではなく、所定の薬液成分を含む、所謂、リンス液による水洗処理も含むものとする。
【0015】
ガム処理部3は、印刷版を搬送するための1対の搬送ローラ22と、印刷版にガム液を吐出するための2組のガム液吐出パイプ23と、流下したガム液を受けて貯留するためのガム液槽24とを有する。また前記搬送ローラ22の支持部には、後述する搬送ローラ検出手段40が備えられている。なお、以下において、搬送ローラ22の上側と下側を区別する場合は、上側搬送ローラを22a、下側搬送ローラを22bと記す。
【0016】
前記ガム液吐出パイプ23には、ガム液槽24の底面に設けた排出孔から循環ポンプ25により吸引したガム液が、異物除去用のフィルター26を通って吐出されるよう配管されている。前記ガム液吐出パイプ23には印刷版の幅方向に沿ってガム液をシャワー状に吐出する図示しない複数のノズルが形成されている。そして前記ノズルはガム液を搬送ローラ22と印刷版との両方に対し吐出可能なように方向付けられており、具体的には上下に対向配置した搬送ローラ22の当接部近傍に向けられている。このため印刷版が搬送されていない場合は、ガム液吐出パイプ23から直接搬送ローラ22に対しガム液が吐出されることになる。
【0017】
また前記ガム液槽24の底部に設けられた排出孔から循環ポンプ25に至る配管路の途中には、ガム液槽24内のガム液をガム液用の廃液タンク27へ排出するための排出弁28も設けられている。さらにガム液槽24には、槽内でのガム液量を一定に保つためのオーバーフロー管29が設けられており、一定量を越えたガム液も前記ガム液用の廃液タンク27に排出される。
なお、本実施の形態における印刷版処理装置には、前記現像液槽5やガム液槽24に対し各々の処理補充液を供給する図示しない補充手段が設けられている。また同様に水洗水槽17に新しい水洗水を供給する図示しない給水手段も設けられている。
【0018】
乾燥処理部4は、印刷版を搬送する搬送ローラ30と、温風を発生させるためのヒータ31ならびにファン32と、発生した温風を導いて印刷版表面に吹き付けるための送風パイプ33とからなる。
【0019】
次に前記搬送ローラ22aの装着を検出する搬送ローラ検出手段40の構成について説明する。なお、図2は図1における符号Aから見た断面の一部を示す図である。図において、まず搬送ローラ22a、22bは各々樹脂またはゴム等の表面を有するローラ本体41a、41bと、このローラ本体の両端に固設された回転軸42a、42bとからなる。前記回転軸42a、42bには、各々当該ローラを回転駆動するための駆動ギア43a、43bが固定されるとともに、前記回転軸42a、42bを回転可能に軸支する軸受部材44a、44bが貫装されている。なお軸受部材44a、44bは各々止め部材45a、45bによって前記回転軸42a、42bから抜け落ちないよう係止されている。
【0020】
現像装置本体のフレーム46は、現像処理部1から乾燥処理部4にかけて各処理部の側方を連続して遮蔽する隔壁部材として機能する。なお処理部上方は図示しない上蓋などにより遮蔽される。以下、本実施の形態では、図2におけるフレーム46の右側を処理部内、左側を処理部外とする。
【0021】
このフレーム46の処理部内側には、前記軸受部材44a、44bを保持するための保持部材47が固定されている。この保持部材47には、前記軸受部材44a、44bを嵌装するための図示しない略U字型の溝が形成されており、前記軸受部材44a、44bを上下に並べて装着することができる。また前記フレーム46と前記保持部材47とには、処理部内外を連通するように窓部48が形成されている。
【0022】
搬送ローラ検出手段40は、ガム処理部3の処理部外において前記フレーム46に固定された台座49と、台座49に回動可能に支持され略L字形をした板金からなる移動部材50とを有する。なお図2においては、移動部材50の回動位置を実線と2点鎖線とで示してある。
前記移動部材50の一端は、前記窓部48を通ってガム処理部3内に挿入されており、先端が折り曲げられて当接部51が形成されている。この当接部51は前記保持部材47に形成された溝内に突出しており、前記保持部材47に上側搬送ローラ22aが装着されたときに押動されるように配置されている。
【0023】
一方、前記移動部材50の他端は、平台状の装着部52が形成され、永久磁石53が固定されている。また永久磁石53と対向するように前記フレーム46には検出手段としての磁気検知スイッチ54が固定されている。なお、前記当接部51が押動されない場合は、前記移動部材50は永久磁石53の自重により図2の2点鎖線に示す位置にある。この状態では、前記磁気検知スイッチ54は前記永久磁石53と離間しており、オフ状態にある。
【0024】
前記搬送ローラ22aが保持部材47に装着されると、回転軸42aにより前記当接部51が押動されて移動部材50が図2の実線に示す位置へ回動する。この回動にともない前記永久磁石53が前記磁気検知スイッチ54に対し近接し、前記磁気検知スイッチ54がオン状態になる。これにより前記搬送ローラ22aの装着状態を検出することができるため、例えば図示しない制御手段により搬送ローラ22aの未装着を警報したり、また処理装置の運転を禁止することができる。
【0025】
この実施の形態では、搬送ローラ22aを直接検出するのではなく搬送ローラ22aにより押動されて移動する移動部材50の位置を検出するようにしているので、搬送ローラ22a自体に被検出部材などを設けなくてもよい。また移動部材50の介在により、磁気検知スイッチ54などの検出部材を搬送ローラ22aから離して配置することができるので、処理液の蒸気や飛び跳ねによる影響を小さくでき、さらには液中の搬送ローラなどを検出することもできる。特にフレーム46からなる隔壁により、前記永久磁石53や磁気近接スイッチ54を処理部外に隔てているので、処理液の蒸気や飛び跳ねによる腐食や汚れの付着などをさらに減少させることができる。
【0026】
なお、フレーム46や上蓋などによる処理部内外の隔離は完全であるのが好ましく、前記窓部48もゴムまたは樹脂フィルムなどによりシーリングすれば、さらに好ましい。ただし、フレーム46の隔壁が不完全であっても、直接的な処理液の飛び跳ねを防止することが期待できる。
【0027】
【発明の効果】
本発明における感光材料処理装置によれば、搬送ローラやガイド部材などの搬送部材の装着を検出することにより、装着忘れを防止することができる。また移動部材の介在により検出手段を搬送部材から離れた位置に配置できるので、処理液による影響を小さくすることができる。
【0028】
請求項2の発明では、検出部材が隔壁部材により処理部外に隔てられているので、処理液の蒸気や飛び跳ねなどによる検出部材の腐食や汚れの付着をさらに減少させることができる。
【図面の簡単な説明】
【図1】この発明の実施の形態に係る感光材料処理装置としての印刷版処理装置の構成を示す図。
【図2】同印刷版処理装置における搬送ローラ検出手段を示す図。
【符号の説明】
1 現像処理部
2 水洗処理部
3 ガム処理部
4 乾燥処理部
22a 搬送ローラ(上側)
22b 搬送ローラ(下側)
40 搬送ローラ検出手段
46 フレーム
50 移動部材
51 当接部
52 装着部
53 永久磁石
54 磁気検知スイッチ
[0001]
[Industrial application fields]
The present invention relates to a photosensitive material processing apparatus for processing a photosensitive material with a processing solution.
[0002]
[Prior art]
A general photosensitive material processing apparatus has a plurality of processing units for processing a photosensitive material. As this processing section, there are an immersion method in which a photosensitive material is passed through a processing tank in which a processing solution is stored in advance, and a coating method in which the processing solution is flowed down to the photosensitive material conveyed in the air. In any of the above methods, the photosensitive material is nipped and conveyed by a plurality of conveyance roller pairs.
A pair of conveying rollers arranged opposite to each other is used as the conveying roller pair, but the final conveying roller pair of each processing unit also functions as a squeezing roller pair that squeezes the processing solution from the surface of the photosensitive material. This is to prevent the former treatment liquid from being brought into the latter treatment section as much as possible. For example, excess developer on the surface of the photosensitive material is squeezed by a pair of final conveying rollers of the developing processing unit having the developing solution, and is conveyed to the fixing processing unit in the subsequent stage.
[0003]
On the other hand, a pair of squeezing rollers for squeezing the processing solution is also provided upstream of the drying processing unit for drying the photosensitive material in order to perform the drying process more efficiently. For example, in a film processing apparatus that develops a photosensitive film, a pair of squeezing rollers is provided so as to squeeze excess water from the photosensitive film that has come out of the water-washing processing unit preceding the drying processing unit. In addition, in a processing apparatus for a printing plate that develops a printing plate such as a PS plate, a pair of conveying rollers is provided to remove an excess gum solution on the photosensitive material after the gum solution is supplied and form a uniform gum film on the plate surface. ing.
[0004]
[Problems to be solved by the invention]
The conveying rollers used as the pair of squeezing rollers are more likely to be contaminated than the conveying rollers constantly immersed in the processing liquid because the processing liquid drawn on the peripheral surface of the roller is dried and solidified. The same applies to the guide members provided between the processing units. Therefore, at the end of a day of work when the processing apparatus is stopped or at weekends, the above-described conveyance members such as the conveyance roller and the guide member are often removed and washed. In addition, the conveyance rollers of the gum processing section in the processing apparatus for printing plates remove or lift up the upper conveyance rollers at the end of the operation in order to prevent the conveyance rollers from being fixed to each other by the gum solution. There is a case.
[0005]
As described above, when a part of the transport roller and the guide member is removed from the apparatus, the operator forgets to reattach it, and the apparatus may be operated with the transport roller and the guide member not mounted. there were. For example, when the transport roller of the gum processing unit is removed so as not to be fixed on the weekend, the processing device is operated without attaching it before starting the next week.
[0006]
In such a case, there is a problem that the photosensitive material is not transported well and a jam occurs, and in the worst case, the apparatus is damaged. Further, if the upper conveying roller of the gum processing unit in the printing plate processing apparatus is removed, the conveyance of the printing plate is not hindered, but the gum solution flows to the drying processing unit without being squeezed. As a result, excess gum solution flows down to the drying heater, fan, etc., causing damage or contamination of the apparatus.
SUMMARY An advantage of some aspects of the invention is to provide a photosensitive material processing apparatus capable of preventing forgetting to attach a conveyance member such as a conveyance roller or a guide member.
[0007]
[Means for Solving the Problems]
Invention of claim 1, the light-sensitive material by a pair of conveying rollers including a lower roller and the upper roller, a photosensitive material processing apparatus for conveying in the processing unit that performs processing by supplying a processing liquid, said A frame that partitions the inside and the outside of the processing unit, a first bearing member that rotatably supports the lower roller, a second bearing member that rotatably supports the upper roller, and a frame that is fixed to the frame. The mounting member passes through a window formed in the frame and the holding member, a holding member for detachably holding the second bearing member, a magnetic detection switch fixed to the outside of the frame, and the frame and the holding member. A moving member having one end protruding and the other end facing the magnetic detection switch, and arranged to be rotatable in the vertical direction around a base attached to the frame outside the processing unit; And When the upper roller is not attached to a member, the moving member is at a position where the other end is separated from the magnetic detection switch by its own weight, and when the upper roller is attached to the holding member, The one end of the moving member is pushed by the weight of the roller, the moving member is rotated, and the other end of the moving member is moved toward the magnetic detection switch, so that the upper roller is mounted. It is characterized by detecting .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing a configuration of a printing plate processing apparatus as a photosensitive material processing apparatus according to an embodiment of the present invention, and shows a side cross section of a main part of the apparatus and a pipe for processing liquid. In the figure, a printing plate processing apparatus includes a development processing unit 1 that performs development processing on a printing plate, a water washing processing unit 2 that performs water washing processing, a gum processing unit 3 that performs gum processing, and a drying processing unit 4 that performs drying processing. Are arranged in series, and are configured so that the printing plate is conveyed sequentially to each processing section.
[0010]
The development processing unit 1 includes a developer tank 5 that stores a developer while temperature is controlled by a temperature control unit (not shown), and a plurality of transport rollers 6 and a guide member 7 that transport the printing plate to the developer tank 5. Have Further, in the developer tank 5, a scrub roller 8 provided with Molton or brush hair with fine fibers on the surface is disposed in order to rub the surface of the printing plate in the developer. The conveyance roller 6 and the scrub roller 8 are synchronized with a common driving means (not shown) including the conveyance rollers 15, 22, and 30 of the water washing processing unit 2, the gum processing unit 3, and the drying processing unit 4 described later. Driven by rotation.
In order to improve the rubbing effect of the scrub roller 8, only the scrub roller 8 may be rotated at different speeds by other driving means.
[0011]
Further, a spray pipe 9 for spraying the developer uniformly on the transported printing plate is provided in the developer tank 5. The spray pipe 9 is configured such that the developer sucked by the circulation pump 10 from a discharge hole provided in the bottom surface of the developer tank 5 is discharged through a filter 11 for removing foreign matter. A discharge valve 12 is provided in the middle of a pipe line extending from the discharge hole provided at the bottom of the developer tank 5 to the circulation pump 9, and discharges the developer in the developer tank 5 to the waste liquid tank 13. be able to.
[0012]
Further, an overflow section 14 is provided on the downstream side of the developer tank 5 to receive the developer overflowed from the rear end side of the developer tank 5. The developer flowing down to the overflow section 14 is the waste liquid tank. 13 is discharged.
[0013]
The washing unit 2 includes two pairs of conveyance rollers 15 for conveying the printing plate, and two sets of washing water discharge pipes 16 disposed between the conveyance rollers 15 for discharging washing water to the printing plate. And a flush water tank 17 for receiving and storing the flushed water that has flowed down.
The flush water discharge pipe 16 is piped so that flush water sucked by a circulation pump 18 from a discharge hole provided in the bottom surface of the flush water tank 17 is discharged through a filter 19 for removing foreign matter. The washing water discharge pipe 16 is formed with a plurality of nozzles (not shown) for discharging washing water in a shower shape along the width direction of the printing plate. The nozzle is oriented so that flush water can be discharged to both the transport roller 15 and the printing plate. Specifically, the nozzle is directed to the vicinity of the abutting portion of the transport roller 15 disposed vertically opposite to the nozzle. Yes. For this reason, when the printing plate is not conveyed, the washing water is directly discharged from the washing water discharge pipe 16 to the conveyance roller 15.
[0014]
In addition, a discharge valve 20 for discharging the flush water in the flush water tank 17 to the waste liquid tank 13 is also provided in the middle of the pipe line extending from the discharge hole provided at the bottom of the flush water tank 17 to the circulation pump 18. Yes. Further, the flush water tank 17 is provided with an overflow pipe 21 for keeping the quantity of flush water in the tank constant, and flush water exceeding a certain quantity is also discharged to the waste liquid tank 13.
In addition, the said water washing process part 2 shall contain not only the water washing process by the rinsing water which does not contain a chemical | medical component but also the water washing process by what is called a rinse liquid containing a predetermined chemical | medical solution component.
[0015]
The gum processing unit 3 receives and stores a pair of transport rollers 22 for transporting the printing plate, two sets of gum solution discharge pipes 23 for discharging the gum solution to the printing plate, and the gum solution that has flowed down. And a gum solution tank 24. Further, the support portion of the transport roller 22 is provided with a transport roller detection means 40 described later. In the following description, when the upper side and the lower side of the transport roller 22 are distinguished, the upper transport roller is denoted by 22a and the lower transport roller is denoted by 22b.
[0016]
The gum solution discharge pipe 23 is piped so that the gum solution sucked by the circulation pump 25 from the discharge hole provided in the bottom surface of the gum solution tank 24 is discharged through the filter 26 for removing foreign substances. The gum solution discharge pipe 23 is formed with a plurality of nozzles (not shown) for discharging the gum solution in a shower shape along the width direction of the printing plate. The nozzle is oriented so that the gum solution can be discharged to both the transport roller 22 and the printing plate. Specifically, the nozzle is directed to the vicinity of the abutting portion of the transport roller 22 arranged vertically oppositely. Yes. For this reason, when the printing plate is not transported, the gum solution is discharged directly from the gum solution discharge pipe 23 to the transport roller 22.
[0017]
In addition, a discharge valve for discharging the gum solution in the gum solution tank 24 to the waste solution tank 27 for the gum solution is provided in the middle of the piping path from the discharge hole provided at the bottom of the gum solution tank 24 to the circulation pump 25. 28 is also provided. Further, the gum solution tank 24 is provided with an overflow pipe 29 for keeping the amount of gum solution in the tank constant, and the gum solution exceeding a certain amount is also discharged to the waste solution tank 27 for the gum solution. .
Note that the printing plate processing apparatus in the present embodiment is provided with replenishing means (not shown) for supplying each processing replenisher to the developer tank 5 and the gum liquid tank 24. Similarly, a water supply means (not shown) for supplying new flush water to the flush tank 17 is also provided.
[0018]
The drying processing unit 4 includes a transport roller 30 for transporting the printing plate, a heater 31 and a fan 32 for generating warm air, and a blower pipe 33 for guiding the generated warm air and blowing it to the printing plate surface. .
[0019]
Next, the configuration of the transport roller detection means 40 that detects the mounting of the transport roller 22a will be described. 2 is a diagram showing a part of a cross section viewed from the reference A in FIG. In the figure, first, the conveying rollers 22a and 22b are composed of roller bodies 41a and 41b each having a surface of resin or rubber, and rotating shafts 42a and 42b fixed to both ends of the roller bodies. Drive shafts 43a and 43b for rotating the rollers are fixed to the rotary shafts 42a and 42b, respectively, and bearing members 44a and 44b for rotatably supporting the rotary shafts 42a and 42b are provided. Has been. The bearing members 44a and 44b are locked by stopper members 45a and 45b so as not to fall off the rotating shafts 42a and 42b.
[0020]
The frame 46 of the developing device main body functions as a partition member that continuously shields the side of each processing unit from the development processing unit 1 to the drying processing unit 4. The upper part of the processing unit is shielded by an upper cover (not shown). Hereinafter, in the present embodiment, the right side of the frame 46 in FIG. 2 is inside the processing unit, and the left side is outside the processing unit.
[0021]
A holding member 47 for holding the bearing members 44 a and 44 b is fixed inside the processing portion of the frame 46. The holding member 47 is formed with a substantially U-shaped groove (not shown) for fitting the bearing members 44a and 44b, and the bearing members 44a and 44b can be mounted side by side. A window 48 is formed in the frame 46 and the holding member 47 so as to communicate the inside and outside of the processing section.
[0022]
The conveyance roller detection means 40 includes a pedestal 49 fixed to the frame 46 outside the processing unit of the gum processing unit 3, and a moving member 50 made of a substantially L-shaped sheet metal that is rotatably supported by the pedestal 49. . In FIG. 2, the rotation position of the moving member 50 is indicated by a solid line and a two-dot chain line.
One end of the moving member 50 is inserted into the gum processing unit 3 through the window 48 and the tip is bent to form an abutting part 51. The abutment portion 51 protrudes into a groove formed in the holding member 47 and is arranged to be pushed when the upper conveying roller 22a is attached to the holding member 47.
[0023]
On the other hand, the other end of the moving member 50 is formed with a flat trapezoidal mounting portion 52 to which a permanent magnet 53 is fixed. A magnetic detection switch 54 as a detecting means is fixed to the frame 46 so as to face the permanent magnet 53. When the contact portion 51 is not pushed, the moving member 50 is at the position indicated by the two-dot chain line in FIG. In this state, the magnetic detection switch 54 is separated from the permanent magnet 53 and is in an off state.
[0024]
When the conveying roller 22a is mounted on the holding member 47, the contact portion 51 is pushed by the rotating shaft 42a, and the moving member 50 is rotated to the position indicated by the solid line in FIG. With this rotation, the permanent magnet 53 comes close to the magnetic detection switch 54, and the magnetic detection switch 54 is turned on. As a result, the mounting state of the transport roller 22a can be detected, so that, for example, a control unit (not shown) can warn that the transport roller 22a has not been mounted, or prohibit the operation of the processing apparatus.
[0025]
In this embodiment, since the position of the moving member 50 that is moved by being pushed by the conveyance roller 22a is detected instead of directly detecting the conveyance roller 22a, a detected member or the like is provided on the conveyance roller 22a itself. It does not have to be provided. Further, since the detection member such as the magnetic detection switch 54 can be arranged away from the transport roller 22a by the interposition of the moving member 50, it is possible to reduce the influence of the treatment liquid vapor or jump, and further, the transport roller in the liquid, etc. Can also be detected. In particular, since the permanent magnet 53 and the magnetic proximity switch 54 are separated from the processing portion by the partition wall made of the frame 46, corrosion due to vapor or splash of the processing liquid, adhesion of dirt, and the like can be further reduced.
[0026]
In addition, it is preferable that the inside and outside of the processing part are completely separated by the frame 46 and the upper lid, and it is more preferable that the window part 48 is also sealed with rubber or a resin film. However, even if the partition wall of the frame 46 is incomplete, it can be expected to prevent direct jumping of the processing liquid.
[0027]
【The invention's effect】
According to the photosensitive material processing apparatus of the present invention, forgetting to mount can be prevented by detecting the mounting of a transport member such as a transport roller or a guide member. In addition, since the detection means can be arranged at a position away from the conveying member due to the intervention of the moving member, the influence of the processing liquid can be reduced.
[0028]
According to the second aspect of the present invention, since the detection member is separated from the processing portion by the partition member, corrosion of the detection member and adhesion of dirt due to vapor or splashing of the processing liquid can be further reduced.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a printing plate processing apparatus as a photosensitive material processing apparatus according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a conveyance roller detection unit in the printing plate processing apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Development processing part 2 Flushing processing part 3 Gum processing part 4 Drying processing part 22a Conveyance roller (upper side)
22b Transport roller (lower side)
40 Conveying roller detection means 46 Frame 50 Moving member 51 Abutment portion 52 Mounting portion 53 Permanent magnet 54 Magnetic detection switch

Claims (1)

感光材料を下ローラと上ローラとを含む一対の搬送ローラによって、処理液を供給して処理を行う処理部内を搬送する感光材料処理装置であって、
前記処理部の内部と外部とを区画するフレームと、
前記下ローラを回転自在に軸支する第1軸受部材と、
前記上ローラを回転自在に軸支する第2軸受部材と、
前記フレームに固着され、前記第2軸受部材を着脱自在に保持する保持部材と、
前記フレームの外側に固定された磁気検知スイッチと、
前記フレームと前記保持部材とに形成された窓部を通って前記装着部材内に突出する一端と、前記磁気検知スイッチに対して対向する他端とを有し、前記処理部の外側で前記フレームに取り付けられた台座を中心に上下方向に回動自在に配置された移動部材とを有し、
前記保持部材に前記上ローラが装着されていないときには、前記移動部材は、その自重により前記他端が前記磁気検知スイッチから離間する位置であり、
前記保持部材に前記上ローラが装着されるときには、前記上ローラの自重により前記移動部材の前記一端が押動されて、前記移動部材が回動し、前記移動部材の前記他端が前記磁気検知スイッチに向けて移動することにより前記上ローラの装着状態を検出することを特徴とする感光材料処理装置。
By a pair of conveying rollers including a lower roller and the upper roller of the photosensitive material, a photosensitive material processing apparatus for conveying in the processing unit for supplying and processing the treatment liquid,
A frame that partitions the inside and the outside of the processing unit;
A first bearing member that rotatably supports the lower roller;
A second bearing member that rotatably supports the upper roller;
A holding member fixed to the frame and holding the second bearing member detachably;
A magnetic detection switch fixed to the outside of the frame;
One end protruding into the mounting member through a window formed in the frame and the holding member, and the other end facing the magnetic detection switch, and the frame outside the processing unit And a moving member arranged to be rotatable in the vertical direction around a pedestal attached to the
When the upper roller is not attached to the holding member, the moving member is a position where the other end is separated from the magnetic detection switch by its own weight,
When the upper roller is mounted on the holding member, the one end of the moving member is pushed by the dead weight of the upper roller, the moving member rotates, and the other end of the moving member is detected by the magnetic detection. A photosensitive material processing apparatus for detecting a mounting state of the upper roller by moving toward a switch .
JP8246999A 1999-03-25 1999-03-25 Photosensitive material processing equipment Expired - Fee Related JP3657140B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8246999A JP3657140B2 (en) 1999-03-25 1999-03-25 Photosensitive material processing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8246999A JP3657140B2 (en) 1999-03-25 1999-03-25 Photosensitive material processing equipment

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JP2000275866A JP2000275866A (en) 2000-10-06
JP3657140B2 true JP3657140B2 (en) 2005-06-08

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