JPS614065A - Exposing device of plate making machine - Google Patents

Exposing device of plate making machine

Info

Publication number
JPS614065A
JPS614065A JP59124406A JP12440684A JPS614065A JP S614065 A JPS614065 A JP S614065A JP 59124406 A JP59124406 A JP 59124406A JP 12440684 A JP12440684 A JP 12440684A JP S614065 A JPS614065 A JP S614065A
Authority
JP
Japan
Prior art keywords
light
image pickup
shielding curtain
shielding
paper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP59124406A
Other languages
Japanese (ja)
Other versions
JPH0248110B2 (en
Inventor
Minehiro Sakata
坂田 峯弘
Tamio Iwamoto
岩元 民夫
Takeo Kadoi
門井 健雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iwatsu Electric Co Ltd
Iwasaki Tsushinki KK
Original Assignee
Iwatsu Electric Co Ltd
Iwasaki Tsushinki KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Iwatsu Electric Co Ltd, Iwasaki Tsushinki KK filed Critical Iwatsu Electric Co Ltd
Priority to JP59124406A priority Critical patent/JPS614065A/en
Priority to US06/732,473 priority patent/US4602866A/en
Priority to DE19853519306 priority patent/DE3519306A1/en
Publication of JPS614065A publication Critical patent/JPS614065A/en
Publication of JPH0248110B2 publication Critical patent/JPH0248110B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/20Exposure; Apparatus therefor
    • G03F7/2002Exposure; Apparatus therefor with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Projection-Type Copiers In General (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)

Abstract

PURPOSE:To perform simply and easily multi-surface exposure without moving an original by drawing the 1st light shield curtain during the 1st image pickup operation and shielding an exposure part from light during the 2nd image pickup operation of master paper, and drawing out the 2nd light shield curtain during the 2nd image pickup operation and shielding a latent image formed by the 1st photography from light. CONSTITUTION:The master paper 7 is sent from a paper feed part 28 to the exposing device 20 to contact a conveyor belt 24 fixedly, and stopped at the 1st image pickup position, where the 1st light shield curtain 40 is drawn out downward to shield the 2nd image pickup part of the master paper 7 from light, picking up an image of an original 4 on an original platen 3. When the 1st image pickup operation is completed, the 1st light shield curtain 40 is lifted up, and at the same time the master paper 7 is conveyed to the 2nd lower image pickup position and stopped. Then, the 2nd light shield curtain 60 is lifted to cover the latent image part formed by the 1st image pickup operation for light shielding, and lowered to the original position after the 2nd image pickup operation, and the master paper 7 is sent to a development part by the conveyor belt 24.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明はオフセット印刷の原版を製版する製版機の露光
装置に係り、特に同一原稿をマスターペーパー(原版)
に多面づけする場合に用いて好適な露光装置に関するも
のである。
[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an exposure device for a plate-making machine that makes an original plate for offset printing, and in particular, it relates to an exposure device for a plate-making machine that makes an original plate for offset printing.
The present invention relates to an exposure apparatus suitable for use in the case of multi-faceted printing.

〔従来技術〕[Prior art]

従来、同一原稿をマスターペーパーに多面づけする場合
、1回目の撮像では第1図(a)に示すように2回目に
原稿を置く部分に黒紙1を置いて露光し、2回目の撮像
では同図(b)に示すように1回目の露光で形成した潜
像2に光をあてないように1回目の原稿部分に黒紙1を
置いて行なうようにしている。なお、図中3は原稿台、
4は原稿、5゜6は光学系を構成するレンズおよびミー
j−17はマスターペーパー、8は露光部、9は未露光
部、10は2回目の露光で形成される潜像である。
Conventionally, when printing multiple copies of the same original on a master paper, the first image is taken by placing black paper 1 on the area where the original will be placed for the second time, as shown in Figure 1(a), and exposed. As shown in FIG. 5B, a black paper 1 is placed on the original portion of the first exposure so that the latent image 2 formed in the first exposure is not exposed to light. In addition, 3 in the figure is the manuscript table,
Reference numeral 4 designates an original, reference numeral 5.6 indicates a lens constituting an optical system, reference numeral 17 indicates a master paper, 8 indicates an exposed area, 9 indicates an unexposed area, and 10 indicates a latent image formed by the second exposure.

しかしながら、このようか黒紙による遮光方式において
は、1回目と2回目の撮像時に原稿4を移動させる必要
があるため、その作業が面倒で、位置精度が出しずらく
、高い精度で位置決めしようとすると時間を要する不都
合があった。また、原稿台3側に黒紙1を置いて遮光し
ても、黒紙1が完全に光を吸収できないため1回目撮像
時に遮光して2回目に撮像する部分9の電位が低下する
ばかりか、原稿4の交換に手間どると、暗減衰によって
も電位が低下するため1回目撮像と2回目撮像で著しい
画像差が生じるなどの欠点があった。
However, in this light-shielding method using black paper, it is necessary to move the document 4 during the first and second imaging, which is cumbersome and makes it difficult to achieve positional accuracy. This had the disadvantage of requiring time. Furthermore, even if black paper 1 is placed on the document table 3 side to block light, the black paper 1 cannot completely absorb light, so not only will the electric potential of the part 9 that is blocked from light during the first image capture and the second image is captured decrease. However, if it takes time to replace the original 4, the potential decreases due to dark decay, resulting in a significant image difference between the first and second imaging.

〔発明の概要〕[Summary of the invention]

本発明は上述したような点に鑑みてなされたもので、ロ
ール状に巻かれた第1および第2の遮光幕を備え、1回
目撮像時に第1の遮光幕を引き出してマスターペーパー
の2回目撮像時の露光部を一〇″/l−1・′11″″
″Kj[om−i11!IIIUI。
The present invention has been made in view of the above-mentioned points, and includes first and second light-shielding curtains wound in the form of a roll, and the first light-shielding curtain is pulled out at the time of the first image capture, and the second light-shielding curtain is removed from the master paper. The exposed area during imaging is 10"/l-1・'11""
``Kj[om-i11!IIIUI.

て1回目撮像による潜像を遮光するという極めて簡単な
構成により、原稿の移動を必要とせず操作が簡単で、高
い画像位置精度が得られ、また1回目撮像と2回目撮像
の画像差を少なくすることができる製版機の露光装置を
提供するものである。
The extremely simple configuration of shielding the latent image from the first image capture allows easy operation without the need to move the document, provides high image position accuracy, and reduces image differences between the first and second image capture. The present invention provides an exposure device for a plate making machine that can perform the following steps.

以下、本発明を図面に示す実施例に基づい−ご詳細に説
明する。
Hereinafter, the present invention will be explained in detail based on embodiments shown in the drawings.

〔実施例〕〔Example〕

第2図は本発明に係る露光装置の一実施例を示す一部破
断斜視図、第2図は間装fMの概略構成を示す側面図で
おる。これらの図において、露光部H20は、レンズ5
とミラー6からなる光学系の投射針内にほぼ垂直に配設
されるサクションボックス21を備えている。サクショ
ンボックス21は、多数の小孔22が形成されたサクシ
ョンプレート21A、一対のサイドブレー) 21B 
、 21C、図示しない背面板、上、下板等によって縦
長薄箱形に形成されて、一方のサイドプレート21Bに
はプロワ−23が配設され、また該ボックス21の上下
面にはそれぞれ対をなす合計4本のローラA〜Dが配設
され、これらローラA〜Dにそれぞれ多数の小孔25を
有する無端状の搬送ベルト24が複数本張設されてサク
ションボックス21の外周を取り巻いている。そして、
搬送ベルト24は、前記サイドプレート21Bの下部に
配設された駆動用ハルスモータ26の回転が駆動チェー
ン27等を介して伝達されることによりサクションボッ
クス21の露光面側において上から下に向うように走行
され、給紙部2Bより荷電部29を通って送られてきた
マスターペーパー7を保持し、所定の露光位置に移送、
停止させるように構成されている。このとき、マスター
ペーパー7tj:、搬送ベルト24の小孔25およびサ
クションプレート21Aの小孔22を通してブロワ−2
3により吸引されることにより、搬送ベルト24に密着
保持される。
FIG. 2 is a partially cutaway perspective view showing an embodiment of the exposure apparatus according to the present invention, and FIG. 2 is a side view showing the schematic structure of the interlayer fM. In these figures, the exposure section H20 is the lens 5
A suction box 21 is provided substantially vertically within the projection needle of the optical system consisting of a mirror 6 and a mirror 6. The suction box 21 includes a suction plate 21A in which a large number of small holes 22 are formed, and a pair of side brakes) 21B.
, 21C, is formed into a vertically long thin box shape by a back plate, upper and lower plates (not shown), etc. A blower 23 is disposed on one side plate 21B, and a pair is provided on the upper and lower surfaces of the box 21, respectively. A total of four rollers A to D are arranged, and a plurality of endless conveyor belts 24 having a large number of small holes 25 are stretched around each of these rollers A to D, and surround the outer periphery of the suction box 21. . and,
The conveyor belt 24 is configured to move from top to bottom on the exposure surface side of the suction box 21 by transmitting the rotation of a drive Hals motor 26 disposed at the lower part of the side plate 21B via a drive chain 27 and the like. Holds the master paper 7 that has been run and sent from the paper feed section 2B through the charging section 29, and transports it to a predetermined exposure position.
Configured to stop. At this time, the master paper 7tj: is passed through the small hole 25 of the conveyor belt 24 and the small hole 22 of the suction plate 21A to the blower 2.
3, it is held in close contact with the conveyor belt 24.

また、前記サクションプレート21Aの中心にはマスタ
ーペーパー7の先端を検出するストップセンサ30が配
設されている。
Further, a stop sensor 30 for detecting the leading edge of the master paper 7 is disposed at the center of the suction plate 21A.

前記サクションボックス21の露光面側上、下部には本
発明を特徴づける第1および第2の遮光幕40.60が
ロール状に巻かれて配設されている。第1の遮光幕40
は第4図に示すようにドラム軸41の外周にブツシュ4
2およびボス43を介して回転自在に配設され、かつ巻
きスプリング44によって巻き戻し方向の回動習性を付
与された遮光幕ドラム45の外周に一端が固定され、他
端がパー46に固定されるもので、通常は前記ドラム4
5の外周に前記巻きスプリング44の力により巻き取ら
れており、1回目の撮像時に下方に引き出されるように
構成されている。前記ドラム軸41は前記サイドプレー
) 21B 、 21Cの上端部間に回転を防止されて
支架されている。前記巻きスプリング44は前記遮光幕
ドラム45内に収納され、捩られた状態で両端が左右一
対のボス43(但し、一方のボスはドラム軸41に対し
て固定)に固定されている。したがって、このセット状
態から遮光幕40を第4図矢印方向に引き出すと、前記
遮光幕ドラム45が時計方向に回転されるため、巻きス
プリング44はさらに捩られてエネルギを蓄積する。前
記バー46の両端部にはガイドコロ47がそれぞれ回転
自在に配設されると共にワイヤ49.50が固定されて
いる。前記ガイドコロ4Tは前記各サイドブレー) 2
1B 、 21Cの露光面側端縁を折り曲げて形成した
縦方向に一艮いレール48に沿って転動するように構成
されている。
First and second light-shielding curtains 40, 60, which characterize the present invention, are arranged in a roll shape above and below the exposure surface side of the suction box 21. First light shielding curtain 40
As shown in FIG.
One end is fixed to the outer periphery of a light-shielding curtain drum 45 which is rotatably disposed via a shaft 2 and a boss 43 and is given the ability to rotate in the unwinding direction by a winding spring 44, and the other end is fixed to a par 46. Usually, the drum 4
It is wound around the outer periphery of the lens 5 by the force of the winding spring 44, and is configured to be pulled out downward during the first imaging. The drum shaft 41 is supported between the upper ends of the side plays 21B and 21C so as to be prevented from rotating. The winding spring 44 is housed in the light-shielding drum 45, and in a twisted state, both ends are fixed to a pair of left and right bosses 43 (however, one boss is fixed to the drum shaft 41). Therefore, when the light-shielding curtain 40 is pulled out in the direction of the arrow in FIG. 4 from this set state, the light-shielding curtain drum 45 is rotated clockwise, so that the winding spring 44 is further twisted and stores energy. Guide rollers 47 are rotatably disposed at both ends of the bar 46, and wires 49 and 50 are fixed thereto. The guide roller 4T is connected to each of the side brakes) 2
It is configured to roll along a lengthwise rail 48 formed by bending the edges of the exposure surfaces of 1B and 21C.

前記ワイヤ49.50のうち向って右側のワイヤ49は
サイドプレート21Cにそれぞれ配設されたプーリ51
,52.53およびパルスモータからなる第1の遮光幕
駆動モータ55に直結された駆動プーリ54に張りめぐ
らされている。同様に向って左側のワイヤ50はサイド
プレート21Bに配設された3つのプーリおよび前記駆
動モータ55に直結された他の駆動プーリ(いずれも図
示せず)に張シめぐらされている。この場合前記駆動モ
ータ55の駆動軸56は左右のサイドプレート21B。
Of the wires 49 and 50, the wires 49 on the right side are connected to pulleys 51 respectively disposed on the side plate 21C.
, 52, 53 and a drive pulley 54 directly connected to a first shade drive motor 55 consisting of a pulse motor. Similarly, the wire 50 on the left side is stretched around three pulleys disposed on the side plate 21B and another drive pulley (none of which is shown) directly connected to the drive motor 55. In this case, the drive shaft 56 of the drive motor 55 is the left and right side plate 21B.

21Cによって軸支され、その先端はサイドプレート2
1Bの外側に突出され、その突出端部に前記した他の駆
動ブーりが取付けられているものとする。
21C, and its tip is supported by side plate 2.
1B, and the other drive boot described above is attached to the protruding end.

したがって、前記第1の遮光幕駆動モータ55を駆動し
て、ワイヤ49.50を第2図矢印58方’     
rN K $□−2,2(−46カ”TNtR+7’c
a6、□1の遮光幕40は巻きスプリング44に抗して
下方に引き出され、直流印加によってモータ55にブレ
ーキをかけるとその位置で停止され、ブレーキ解除とと
もに巻きスプリング44の力により巻き戻される。
Therefore, the first shade drive motor 55 is driven to move the wires 49 and 50 in the direction of the arrow 58' in FIG.
rN K $□-2,2(-46k) TNtR+7'c
The light-shielding curtain 40 of a6 and □1 is pulled out against the winding spring 44, stops at that position when the motor 55 is braked by DC application, and is wound back by the force of the winding spring 44 when the brake is released.

前記第2の維光幕60は上述した第1の遮光幕40と全
く同一に構成されるため、その説明を省  ・略するが
、第1の遮光幕40とは上下逆向きに配設サレるため、
パルスモータからなる第2の遮光幕駆動モータ61の駆
動によりワイヤ62.63を第2図矢印64方向に移動
させると上方に引き上げられるように構成されている。
Since the second fiber optic curtain 60 is configured exactly the same as the first light shielding curtain 40 described above, the explanation thereof will be omitted. In order to
When the wires 62 and 63 are moved in the direction of the arrow 64 in FIG. 2 by driving the second light shielding curtain drive motor 61 consisting of a pulse motor, the wires 62 and 63 are pulled upward.

なお、65゜66.67はワイヤ62が張り渡されるプ
ーリ、6Bは第2の遮光幕駆動モータ61に直結された
駆動プーリ、69.70はワイヤ63のプーリである。
Note that 65° 66.67 is a pulley over which the wire 62 is stretched, 6B is a drive pulley directly connected to the second light-shielding drive motor 61, and 69.70 is a pulley for the wire 63.

次に、このようが構成からなる露光装置において2回露
光動作を説明する。
Next, a two-time exposure operation in the exposure apparatus configured as described above will be explained.

マスターペーパー7を給紙部28にセットシ、操作パネ
ル面のプリントボタンを操作すると、マスターペーパー
Tは真空吸着装置80によって吸引保持され、荷電部2
9にて荷電された後露光装置20へ送られる。そして、
マスターペーパー7は搬送ベルト24に密着固定され、
ストップセンサ30(第3図参照)を通過後、入力デー
タにもとづいたパルス量だけ送られ1回目の撮像位置に
停止される。また、第1の遮光幕40は、入力データに
もとづく第1の遮光幕駆動モータ55の駆動に伴い下方
に引き出され、該モータ55をブレーキすることにより
前記マスターベーパ−7ノ2回目撮像部分を覆う位置に
セットされる。第2図および第3図はこの状態を示し、
露光ボタンの操作により、原稿台3上の原稿4のマスタ
ーペーパー1に対する撮像が行なわれる。
When the master paper 7 is set in the paper feed section 28 and the print button on the operation panel is operated, the master paper T is sucked and held by the vacuum suction device 80 and transferred to the charging section 2.
After being charged at step 9, it is sent to an exposure device 20. and,
The master paper 7 is closely fixed to the conveyor belt 24,
After passing the stop sensor 30 (see FIG. 3), it is sent by the amount of pulses based on the input data and stopped at the first imaging position. Further, the first light-shielding curtain 40 is pulled out downward as the first light-shielding curtain drive motor 55 is driven based on the input data, and by braking the motor 55, the second imaged portion of the master vapor 7 is removed. It is set in the covering position. Figures 2 and 3 show this state,
By operating the exposure button, an image of the original 4 on the original platen 3 is captured on the master paper 1.

1回目の撮像が終了すると、第1の遮光幕駆動モータ5
5のブレーキが解除されるため、第1の遮光幕40は巻
きスプリング44の力により元の状態に巻き上げられる
。同時に駆動モータ26が入力データにもとすいたパル
ス量だけ駆動して搬送ベルト24を走行させることにょ
υ、マスターペーパーTは下方に所定量移送され2回目
撮像位置に停止される。また、第2の遮光幕6oは第5
図に示すように入力データにもとすく第2の遮光幕駆動
モータ61の駆動により1回目撮像により形成した潜像
部分2を覆う位置にセットされる。
When the first image capturing is completed, the first light-shielding curtain drive motor 5
Since the brake 5 is released, the first light shielding curtain 40 is rolled up to its original state by the force of the winding spring 44. At the same time, the drive motor 26 drives the conveyor belt 24 by the amount of pulses determined by the input data, thereby transporting the master paper T downward by a predetermined amount and stopping at the second imaging position. Moreover, the second light-shielding curtain 6o is
As shown in the figure, the input data is quickly set to a position covering the latent image portion 2 formed by the first imaging by driving the second light-shielding curtain drive motor 61.

そして、2回目撮像が終了すると、第2の遮光幕駆動モ
ータ61のブレーキが解除されるため、第2の遮光幕6
0は巻きスプリングの力により下降して巻き上げられ、
マスターペーパー7は搬送ベルト24によって現像部へ
と送られる。
Then, when the second image capturing is completed, the brake of the second light-shielding curtain drive motor 61 is released, so that the second light-shielding curtain 6
0 is lowered and rolled up by the force of the winding spring,
The master paper 7 is sent to the developing section by a conveyor belt 24.

〔発明の効果〕〔Effect of the invention〕

以上述べたように本発明に係る製版機の露光装置は、第
1および第2の遮光幕を設け、1回目撮像時に第1の遮
光幕を引き出してマスターペーパーの2回目撮像時の露
光11(を覆い、2回目撮像時に第2°の遮光幕を引き
出して1回目撮像による潜像部分を覆うように構成した
ので、原稿台上の原稿を何ら移動させる必要が彦<、−
回の原稿セットで多面露光を簡単かつ容易で、短時間に
行なうことができる。また、原稿を移動させないため、
製版作業が効率的であり製版速度が早い上面像位置精度
が良く、シかも1回目撮像と2回目撮像の画像差も少々
<、高品質の原版を製作することができる。さらに、原
稿面に黒紙を置く方法と異なり、マスターペーパーの露
光面を遮光幕で直接遮光する方法を採用しているため、
2回目露光部分゛  は1回目露光時の影響を受けない
など、その効果は非常に大である。
As described above, the exposure device of the plate-making machine according to the present invention is provided with the first and second light-shielding curtains, and the first light-shielding curtain is pulled out at the time of the first image capturing, and the exposure device 11 ( Since the structure is configured so that the 2nd degree light-shielding curtain is pulled out during the second image capture to cover the latent image area from the first image capture, there is no need to move the document on the document table in any way.
Multi-face exposure can be performed simply and easily in a short time by setting the original once. Also, since the original is not moved,
The plate-making work is efficient, the plate-making speed is fast, the top image position accuracy is good, and the image difference between the first and second image captures is small, making it possible to produce high-quality original plates. Furthermore, unlike the method of placing black paper on the original surface, we use a method in which the exposed surface of the master paper is directly shielded from light with a light-shielding curtain.
This effect is very significant, as the second exposure area is not affected by the first exposure.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図(a) 、 (b)は従来の黒紙による遮光方法
を示す図、第2図は本発明に係る露光装置の一実施例を
示す一部破断斜視図、第3図は同装置の1回目撮影時の
概略構成を示す側面図、第4図は遮光幕の構成を示す一
部破断斜視図、第5図は2回目撮影時の概要構成を示す
側面図である。 3・・・・原稿台、4・#11@原稿、5咎・・会レン
ズ、6・拳・嘩ミラー、7・I@・マスターベーパー、
20・、11・露光装置、21・・・(°”V″′yy
N91“・22°@ 11 @ /J゛孔・ 24・・
・・搬送ベルト、25・・・・小孔、26@・・・モー
タ、40・−・・第1の遮光幕、44・・・1巻きスプ
リング、45・・・・遮光幕ドラム、55・・・・第1
の遮光幕駆動モータ、60・・Φ・第2の遮光幕、61
@Φ・・第2の遮光幕駆動モータ。
FIGS. 1(a) and (b) are diagrams showing a conventional light shielding method using black paper, FIG. 2 is a partially cutaway perspective view showing an embodiment of the exposure apparatus according to the present invention, and FIG. 3 is a diagram showing the same apparatus. FIG. 4 is a partially cutaway perspective view showing the structure of a light-shielding curtain, and FIG. 5 is a side view showing the general structure during second shooting. 3...Manuscript table, 4.#11@manuscript, 5..Kai lens, 6.Fist/Fight mirror, [email protected] vapor,
20・, 11・Exposure device, 21...(°”V″′yy
N91"・22°@11@/J゛hole・24・・
...Conveyor belt, 25...Small hole, [email protected], 40...First light-shielding curtain, 44...1-turn spring, 45...Dark-shielding drum, 55. ...First
shading curtain drive motor, 60...Φ, second shading curtain, 61
@Φ...Second light-shielding curtain drive motor.

Claims (1)

【特許請求の範囲】[Claims] 表面に多数の小孔を有して光学系の投射野内に配設され
内部が排気されるサクションボックスと、多数の小孔を
有して前記サクションボックスを取り囲む如く配設され
マスターペーパーを所定の露光位置に移動停止させる搬
送ベルトと、この搬送ベルトを駆動するモータと、前記
サクションボックスの両端部にそれぞれロール状に巻か
れて配設された第1および第2の遮光幕と、前記第1お
よび第2の遮光幕を選択的に引き出す第1および第2の
遮光幕駆動モータとを備え、1回目撮像時に第1の遮光
幕駆動モータを駆動して第1の遮光幕を引き出すことに
よりマスターペーパーの2回目撮像時の露光部を遮光し
、2回目撮像時に前記マスターペーパーを前記モータの
駆動によつて2回目撮像位置に移動停止させると共に第
2の遮光幕駆動モータを駆動して第2の遮光幕を引き出
すことによりマスターペーパーの1回目撮像で形成され
た潜像を遮光するようにしたことを特徴とする製版機の
露光装置。
A suction box has a large number of small holes on its surface and is disposed within the projection field of the optical system, and the inside of the box is evacuated. a conveyor belt that moves and stops at the exposure position; a motor that drives the conveyor belt; first and second light-shielding curtains that are respectively wound in a roll at both ends of the suction box; and first and second light-shielding curtain drive motors that selectively pull out the second light-shielding curtain, and the first light-shielding curtain drive motor is driven to pull out the first light-shielding curtain at the time of first imaging. The exposed portion of the paper is shielded from light during the second image capture, and the master paper is moved and stopped at the second image capture position by driving the motor, and a second light shielding curtain drive motor is driven to provide a second light shielding curtain. 1. An exposure device for a plate-making machine, characterized in that a latent image formed in the first imaging of a master paper is shielded from light by pulling out a light-shielding curtain.
JP59124406A 1984-06-19 1984-06-19 Exposing device of plate making machine Granted JPS614065A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP59124406A JPS614065A (en) 1984-06-19 1984-06-19 Exposing device of plate making machine
US06/732,473 US4602866A (en) 1984-06-19 1985-05-09 Exposure device for platemaking apparatus
DE19853519306 DE3519306A1 (en) 1984-06-19 1985-05-30 EXPOSURE DEVICE FOR A DEVICE FOR PRODUCING PRINTING PLATES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59124406A JPS614065A (en) 1984-06-19 1984-06-19 Exposing device of plate making machine

Publications (2)

Publication Number Publication Date
JPS614065A true JPS614065A (en) 1986-01-09
JPH0248110B2 JPH0248110B2 (en) 1990-10-24

Family

ID=14884667

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59124406A Granted JPS614065A (en) 1984-06-19 1984-06-19 Exposing device of plate making machine

Country Status (1)

Country Link
JP (1) JPS614065A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4914473A (en) * 1988-01-25 1990-04-03 Dainippon Screen Mfg. Co., Ltd. Multiple-exposure apparatus in a graphic arts copying machine of a slit-exposure type
US4959689A (en) * 1988-10-29 1990-09-25 Iwatsu Electric Co., Ltd. Electrophotographic plate-making machine with independent motors for moving the copy holder, conveying rollers and focus region rollers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7410896B2 (en) 2021-02-01 2024-01-10 株式会社ヴァレオジャパン centrifugal blower

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4914473A (en) * 1988-01-25 1990-04-03 Dainippon Screen Mfg. Co., Ltd. Multiple-exposure apparatus in a graphic arts copying machine of a slit-exposure type
US4959689A (en) * 1988-10-29 1990-09-25 Iwatsu Electric Co., Ltd. Electrophotographic plate-making machine with independent motors for moving the copy holder, conveying rollers and focus region rollers

Also Published As

Publication number Publication date
JPH0248110B2 (en) 1990-10-24

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