JPH04361Y2 - - Google Patents
Info
- Publication number
- JPH04361Y2 JPH04361Y2 JP13921484U JP13921484U JPH04361Y2 JP H04361 Y2 JPH04361 Y2 JP H04361Y2 JP 13921484 U JP13921484 U JP 13921484U JP 13921484 U JP13921484 U JP 13921484U JP H04361 Y2 JPH04361 Y2 JP H04361Y2
- Authority
- JP
- Japan
- Prior art keywords
- original film
- plate
- vacuum
- film
- exposure
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 21
- 238000007639 printing Methods 0.000 claims description 10
- 230000003028 elevating effect Effects 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 1
- 238000007644 letterpress printing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
Description
【考案の詳細な説明】
(産業上の利用分野)
本考案は自動露光機において、露光部に引き入
れた原稿フイルムを吸着保持し、原稿フイルムを
版材上面に重ねて露光するとともに、露光が終了
した原稿フイルムを版材上面から上昇せしめる装
置に関する。[Detailed description of the invention] (Field of industrial application) This invention is an automatic exposure machine that sucks and holds the original film drawn into the exposure section, overlaps the original film on the top surface of the plate material and exposes it, and then the exposure ends. The present invention relates to a device for lifting a printed original film from the upper surface of a printing plate.
(従来の技術)
オフセツト印刷或いは凸版印刷用等の刷版を写
真製版法にて得るための自動露光装置を本出願人
は特願昭58−175675号として先に提案した。(Prior Art) The present applicant previously proposed an automatic exposure device for obtaining printing plates for offset printing, letterpress printing, etc. by photolithography in Japanese Patent Application No. 175,675/1983.
斯る自動露光装置は、露光部の近傍に複数の原
稿フイルムを収納したカセツトを付設するととも
に、露光部内には光源及び版材を吸引載置する真
空定盤の他に、原稿フイルムの出し入れ装置及び
原稿フイルムの吸着昇降装置を配設し、原稿フイ
ルムの出し入れ装置によつて所定の原稿フイルム
を待機カセツトから露光部内に引き入れ、この引
き入れた原稿フイルムを吸着昇降装置の吸引用バ
キユームパツドで保持し、吸着装置を下降せしめ
ることで原稿フイルムを真空定盤上に載置された
版材の上面感光層に重ね、スキージローラにて原
稿を版材上面に押し付けて密着し、この状態で上
方から露光を施し、版材上面の感光層に原稿フイ
ルムの画線部に対応して選択的に光を当て、ネガ
型の感光層にあつては光が当つた部分を硬化せし
め、更に露光が終了したならば、吸着昇降装置を
上昇させ、版材上面から原稿フイルムを引き離
し、前記出し入れ装置によつて再び元のカセツト
内に原稿フイルムを戻すようにしたものである。 Such an automatic exposure device is equipped with a cassette containing a plurality of original films near the exposure section, and in addition to a light source and a vacuum surface plate for suctioning and placing the printing plate, the exposure section also has a device for loading and unloading the original films. and an original film suction lifting device, the original film loading/unloading device pulls a predetermined original film from a standby cassette into the exposure section, and the drawn original film is held by a suction vacuum pad of the suction lifting device; By lowering the suction device, the original film is placed on the photosensitive layer on the upper surface of the plate placed on the vacuum surface plate, and a squeegee roller presses the original onto the upper surface of the plate to bring it into close contact.In this state, exposure is performed from above. The photosensitive layer on the top surface of the plate is selectively exposed to light corresponding to the image area of the original film, and in the case of a negative type photosensitive layer, the exposed areas are cured, and after the exposure is completed, For example, the suction elevating device is raised to separate the document film from the upper surface of the plate material, and the document film is returned to its original cassette by the loading/unloading device.
(考案が解決しようとする問題点)
上述した露光工程において、スキージローラに
よつて原稿フイルムを版材上面に押し付けるに
は、原稿フイルムの一側のみを当初下げて版材上
面に重ね、スキージローラの走査に合せて他側も
徐々に下げて版材上面に重ねるようにしている。
このようにすれば、スキージローラによる密着の
際にエアーを介在させたまま密着することがな
く、焼きボケを防止できる。(Problem to be solved by the invention) In the exposure process described above, in order to press the original film onto the top surface of the printing plate using the squeegee roller, only one side of the original film is initially lowered and placed on the top surface of the printing plate, and then the squeegee roller As the other side is scanned, the other side is gradually lowered so that it overlaps the top surface of the plate material.
In this way, when the squeegee roller makes a close contact, the contact does not occur with air intervening, and it is possible to prevent blurring.
ところで、原稿フイルムの一側のみを当初下
げ、他側をその後徐々に下げるには、例えば吸着
昇降装置として、上端部にバキユームパツドを設
けた昇降自在な垂直軸を前側一対、後側一対の計
4本配設した場合には、前側の垂直軸を下降さ
せ、後側の垂直軸を上昇した位置に維持すること
となる。すると、原稿フイルムは斜めになるとと
もに、前後のバキユームパツド間の距離が広が
り、原稿フイルムが引つ張られることとなり、こ
の結果、バキユームパツドから原稿フイルムが外
れるおそれがある。 By the way, in order to initially lower only one side of the original film and then gradually lower the other side, for example, as a suction lifting device, a total of four vertical shafts, one pair on the front side and one pair on the rear side, are installed, each with a vacuum pad on the upper end that can be raised and lowered. In this case, the front vertical shaft is lowered and the rear vertical shaft is maintained at an elevated position. As a result, the original film becomes oblique, and the distance between the front and rear vacuum pads increases, causing the original film to be stretched. As a result, there is a risk that the original film may come off from the vacuum pad.
(問題点を解決するための手段)
上記問題点を解決すべく本考案は、露光部の真
空定盤の周囲に複数の昇降可能な垂直軸を配設す
るとともに、これら垂直軸の上端部に設けられる
バキユームパツドをゴム等の可撓性材料にて構成
し、片側の垂直軸を下げることで原稿フイルムが
引つ張られる状態となつても、該引つ張りに応じ
てバキユームパツドが変形し、バキユームパツド
から原稿フイルムが外れないようにした。(Means for Solving the Problems) In order to solve the above problems, the present invention provides a plurality of vertical shafts that can be raised and lowered around the vacuum surface plate of the exposure section, and at the top of these vertical shafts. The provided vacuum pad is made of a flexible material such as rubber, and even when the document film is pulled by lowering one vertical shaft, the vacuum pad deforms in response to the tension, and the vacuum pad The original film was prevented from coming off.
(実施例)
以下に本考案の実施例を添付図面に基づいて説
明する。(Example) An example of the present invention will be described below based on the accompanying drawings.
第1図は本考案に係る吸着昇降装置を適用した
自動露光装置の正面図、第2図は同自動露光装置
の平面図、第3図は同自動露光装置の側面図であ
る。 FIG. 1 is a front view of an automatic exposure apparatus to which a suction lifting device according to the present invention is applied, FIG. 2 is a plan view of the automatic exposure apparatus, and FIG. 3 is a side view of the automatic exposure apparatus.
自動露光装置1はフレーム2に取り付けた支持
板2a上に前後方向(第1図の紙面垂直方向)を
開放した保持体3を設け、この保持体3の一面に
は搬送ベルト4にて搬送されてきた版材を受け入
れる開口5を形成し、保持体3内の支持板2a上
には真空定盤6を、その上方には露光用の光源7
を配設している。 The automatic exposure apparatus 1 is provided with a holder 3 that is open in the front-rear direction (perpendicular to the plane of the paper in FIG. 1) on a support plate 2a attached to a frame 2. A vacuum surface plate 6 is provided on the support plate 2a in the holder 3, and a light source 7 for exposure is provided above it.
has been set up.
真空定盤6は上面に真空ポンプ等につながる溝
を形成しており、搬送ローラ8を介して真空定盤
6上に搬入された版材を位置決めするとともに該
溝にて吸引固定する。また光源7はケース3内側
に固定されたガイドロツド9にアーム10を外嵌
し、このアーム10とウエイト11とを連結する
ことで所定の高さ位置にて停止可能とされる。 The vacuum surface plate 6 has a groove connected to a vacuum pump or the like on its upper surface, and the plate material carried onto the vacuum surface plate 6 via the conveyance roller 8 is positioned and fixed by suction through the groove. Further, the light source 7 can be stopped at a predetermined height position by fitting an arm 10 onto a guide rod 9 fixed inside the case 3 and connecting the arm 10 to a weight 11.
一方、第2図に示す如く露光部の前方には多数
の原稿フイルムを上下方向にずらせて保持するカ
セツト12が付設され、また露光部の前部(第2
図において下方)及び後部(第2図において上
方)には支持板13,13を設け、これら支持板
13,13間に前後方向に延びるガイドロツド1
4,14を架設し、このガイドロツド14,14
に移動板15を摺動自在に取り付けている。移動
板15には雌ネジを刻設した貫通孔を形成し、こ
の貫通孔にガイドロツド14と平行な棒ネジ16
を螺合せしめる。而して、この棒ネジ16をモー
タ17にて回転せしめることで移動板15はガイ
ドロツド14,14に沿つて前後方向に移動す
る。 On the other hand, as shown in FIG. 2, a cassette 12 is attached to the front of the exposure section for holding a large number of original films vertically shifted, and a cassette 12 is attached to the front of the exposure section (second
Support plates 13, 13 are provided at the lower part in the figure) and the rear part (upper part in Fig. 2), and a guide rod 1 extends in the front-rear direction between these support plates 13, 13.
4, 14, and these guide rods 14, 14.
A movable plate 15 is slidably attached to. A through hole with a female thread is formed in the moving plate 15, and a bar screw 16 parallel to the guide rod 14 is inserted into the through hole.
Screw them together. By rotating this rod screw 16 with a motor 17, the movable plate 15 is moved in the front and back direction along the guide rods 14, 14.
また、移動板15にはチヤツキング装置18と
出没片19が設けられている。チヤツキング装置
18はカセツト12内にセツトされた原稿フイル
ムの上端部を保持する保持体のハンガー部を把む
ものであり、移動板15が前方に移動した位置で
チヤツキング装置18が原稿フイルムのハンガー
部を把み、移動板15が後方に移動することで、
原稿フイルムが露光部内に引き込まれる。また出
没片19は原稿フイルムを引き込む際に原稿フイ
ルムの上端部を保持する保持体を水平状態にする
ためのものである。 Further, the movable plate 15 is provided with a chucking device 18 and a retractable piece 19. The chucking device 18 grips the hanger portion of the holder that holds the upper end of the original film set in the cassette 12. At the position where the moving plate 15 moves forward, the chucking device 18 grips the hanger portion of the original film. By moving the gripping and moving plate 15 backward,
The original film is drawn into the exposure section. The protruding/retracting piece 19 is for keeping the holder that holds the upper end of the original film in a horizontal state when the original film is pulled in.
一方、前記支持板2a上には本考案に係る吸着
昇降装置の一部を構成するシリンダユニツト20
…を立設している。シリンダユニツト20は真空
定盤6の前部の左右側方及び後部の左右側方にそ
れぞれ一対づつ合計4個配置され、各シリンダユ
ニツト20のロツド21は第4図に示す如く垂直
方向に進退動をなし、各ロツド21の上端部には
垂直方向に延びる垂直軸22を固着し、垂直軸2
2の上端には真空引き装置につながるバキユーム
パツド23を設けている。このバキユームパツド
23はゴム等の可撓性材料にて構成され、バキユ
ームパツド23に何らかの力が作用した場合に
は、その力に応じ変形し、力が作用しなくなつた
ら元の形状に復帰する。 On the other hand, on the support plate 2a is a cylinder unit 20 that constitutes a part of the suction lifting device according to the present invention.
...is being established. A total of four cylinder units 20 are arranged, one pair each on the left and right sides of the front part and the left and right sides of the rear part of the vacuum surface plate 6, and the rods 21 of each cylinder unit 20 move forward and backward in the vertical direction as shown in FIG. A vertical shaft 22 extending in the vertical direction is fixed to the upper end of each rod 21.
A vacuum pad 23 connected to a vacuum device is provided at the upper end of the vacuum pump 2. The vacuum pad 23 is made of a flexible material such as rubber, and when some force is applied to the vacuum pad 23, it deforms in response to the force, and returns to its original shape when the force is no longer applied.
更に、真空定盤6に後部近傍にはスキージロー
ラ24を配設している。このスキージローラ24
は外周部を生ゴム等にて構成され、真空定盤6上
面に圧接しつつ前方に向かつて転動し、また前方
から後方に向かつて転動して戻る。 Furthermore, a squeegee roller 24 is disposed near the rear of the vacuum surface plate 6. This squeegee roller 24
The outer periphery is made of raw rubber or the like, and it rolls forward while being in pressure contact with the upper surface of the vacuum surface plate 6, and also rolls from the front to the rear and returns.
以上の如き構成からなる自動露光装置1の作用
を吸着昇降装置の作用を中心として以下に述べ
る。 The operation of the automatic exposure apparatus 1 constructed as described above will be described below, focusing on the operation of the suction lifting device.
先ず、移動板15が前進限の位置まで移動し、
チヤツキング装置18,18により原稿フイルム
25の上端部のハンガー部を把み、次いで移動板
15が後退限の位置まで移動することにより、原
稿フイルム25を露光部内に引き入れる。この状
態で、原稿フイルム25と真空定盤6との間には
所定の空間が確保されている。 First, the moving plate 15 moves to the forward limit position,
The chucking devices 18, 18 grasp the hanger portion at the upper end of the original film 25, and then the movable plate 15 moves to the backward limit position, thereby drawing the original film 25 into the exposure section. In this state, a predetermined space is secured between the original film 25 and the vacuum surface plate 6.
斯る状態から4個のシリンダユニツト20…の
全てを作動させ、軸22…を上昇せしめ、バキユ
ームパツド23…を原稿フイルム25の周縁部下
面に当接し、原稿フイルム25を吸着する。そし
て、これと同時にチヤツキング装置18の把持状
態を解除する。この状態を第4図で示している。 From this state, all four cylinder units 20 are operated, the shafts 22 are raised, the vacuum pads 23 are brought into contact with the lower surface of the periphery of the original film 25, and the original film 25 is attracted. At the same time, the gripping state of the chucking device 18 is released. This state is shown in FIG.
次いで、搬送ベルト4、開口5及び搬送ローラ
8を介して真空定盤6上に版材26(第5図参
照)を送り込み、真空定盤6上面に形成した凹部
内に版材26を入れて位置決めし、吸引用の溝を
介して真空定盤6上に固定する。 Next, the plate material 26 (see FIG. 5) is fed onto the vacuum surface plate 6 via the conveyor belt 4, the opening 5, and the conveyor roller 8, and the plate material 26 is placed in the recess formed on the top surface of the vacuum surface plate 6. It is positioned and fixed on the vacuum surface plate 6 via the suction groove.
而る後、第5図に示す如く片側(後側)のシリ
ンダユニツト20のみを作動させ、軸22及びバ
キユームパツド23を下降させ、原稿フイルム2
5の一側端を真空定盤6上に接触させる。すると
原稿フイルム25の一側端は真空定盤6に形成し
た吸引用溝にて吸引され、真空定盤6に吸着され
る。この時、前後のバキユームパツド23,23
間の距離が大となるため、原稿フイルム25には
引張力が作用するが、前記した如くバキユームパ
ツド23はゴム等の可撓性材料から構成されてい
るため、上記引張力に追従してバキユームパツド
が変形し、バキユームパツドから原稿フイルムが
外れることがない。 Thereafter, as shown in FIG. 5, only the cylinder unit 20 on one side (rear side) is operated, the shaft 22 and the vacuum pad 23 are lowered, and the original film 2 is lowered.
5 is brought into contact with the vacuum surface plate 6. Then, one end of the original film 25 is suctioned by a suction groove formed in the vacuum surface plate 6, and is attracted to the vacuum surface plate 6. At this time, the front and rear vacuum pads 23, 23
Due to the large distance between them, a tensile force acts on the original film 25. However, as mentioned above, since the vacuum pad 23 is made of a flexible material such as rubber, the vacuum pad 23 follows the tensile force and acts on the document film 25. The original film will not deform and come off the vacuum pad.
この後、スキージローラ24の転動に応じて前
側のシリンダユニツト20を作動させ、原稿フイ
ルム25の前端部を徐々に下降させる。このよう
に、スキージローラ24によつて版材26上面に
原稿フイルム25を押し付け、密着せしめるにあ
たり、スキージローラ24によつて押し付けられ
る部分よりも前方を持ち上げておくことで、原稿
フイルム25と版材26との間に空気を介在させ
た状態で密着する不利がなくなり、露光の際の焼
きボケを防止し得る。 Thereafter, the front cylinder unit 20 is operated in accordance with the rolling of the squeegee roller 24, and the front end of the document film 25 is gradually lowered. In this way, when the original film 25 is pressed against the upper surface of the plate material 26 by the squeegee roller 24 and the original film 25 is brought into close contact with the upper surface of the plate material 26, by lifting the front part of the original film 25 from the part pressed by the squeegee roller 24, the original film 25 and the plate material are 26 is eliminated, and blurring during exposure can be prevented.
以上の如くして、版材26上面の感光層に原稿
フイルム25を重ね密着せしめたならば、所定時
間露光を施し、露光が終了したならば、シリンダ
ユニツト20…の全てを作動させて原稿フイルム
25を版材26から上昇せしめ、この上昇した原
稿フイルム25を再びチヤツキング装置18で把
み、バキユームパツド23…による吸引状態を解
除し、移動板15を前進せしめてカセツト12内
に原稿フイルム25を戻す。 After the original film 25 is stacked and brought into close contact with the photosensitive layer on the upper surface of the plate material 26 in the manner described above, exposure is performed for a predetermined time, and when the exposure is completed, all of the cylinder units 20 are operated to remove the original film. 25 is raised from the plate material 26, this raised original film 25 is grasped again by the chucking device 18, the suction state by the vacuum pad 23 is released, the movable plate 15 is advanced, and the original film 25 is returned into the cassette 12. .
また露光が終了した版材26は搬送ローラ27
にて次工程である現像・水洗い工程へ送られ、感
光層がネガ型にあつては感光層のうち光が当らな
かつた部分を溶出し、原稿フイルムの画線部に対
応した凹凸部を有する刷版を得る。 Further, the plate material 26 that has been exposed is transferred to a transport roller 27.
When the photosensitive layer is a negative type, the portions of the photosensitive layer that are not exposed to light are eluted to create uneven areas corresponding to the image areas of the original film. Get a printing plate.
(考案の効果)
以上に説明した如く本考案によれば、自動露光
の際に原稿フイルムを版材上面に下降させ、また
版材上面から原稿フイルムを上昇させる吸着昇降
装置のバキユームパツドをゴム等の可撓性材料に
て構成したため、焼きボケを防止すべく原稿フイ
ルムを傾斜せしめた状態でスキージローラにより
版材に密着せしめるようにしても、原稿フイルム
がバキユームパツドから外れる不利がない。(Effects of the invention) As explained above, according to the invention, the vacuum pad of the suction lifting device that lowers the original film to the top surface of the printing plate during automatic exposure and lifts the original film from the top of the printing plate is made of rubber or the like. Since it is made of a flexible material, there is no disadvantage that the original film comes off from the backing pad even if the original film is brought into close contact with the printing plate by a squeegee roller in an inclined state to prevent blurring.
第1図は本考案に係る吸着昇降装置を適用した
自動露光装置の正面図、第2図は同自動露光装置
の平面図、第3図は同自動露光装置の側面図、第
4図は吸着昇降装置の側面図、第5図は吸着昇降
装置の作用を説明した側面図である。
尚、図面中1は自動露光装置、6は真空定盤、
7は光源、12は原稿フイルムの収納カセツト、
15は移動板、18はチヤツキング装置、20は
シリンダユニツト、22は垂直軸、23はバキユ
ームパツド、24はスキージローラ、25は原稿
フイルム、26は版材である。
Fig. 1 is a front view of an automatic exposure device to which the suction lifting device according to the present invention is applied, Fig. 2 is a plan view of the same automatic exposure device, Fig. 3 is a side view of the same automatic exposure device, and Fig. 4 is a suction FIG. 5 is a side view of the lifting device. FIG. 5 is a side view illustrating the operation of the suction lifting device. In addition, in the drawing, 1 is an automatic exposure device, 6 is a vacuum surface plate,
7 is a light source, 12 is a storage cassette for original film,
15 is a movable plate, 18 is a chucking device, 20 is a cylinder unit, 22 is a vertical shaft, 23 is a vacuum pad, 24 is a squeegee roller, 25 is an original film, and 26 is a plate material.
Claims (1)
に重ね、スキージローラの走査に合わせて他側も
徐々に下げて版材上面に重ねて露光し、露光が終
了した原稿フイルムを版材上面から上昇させる自
動露光装置のフイルム吸着昇降装置において、版
材を載置する真空定盤の周囲には昇降自在で且つ
スキージローラの走査方向において互に独立して
下降する垂直軸を複数本配置し、この垂直軸の上
端部には原稿フイルムの下面に吸着するバキユー
ムパツドを設け、更にこのバキユームパツドをゴ
ム等の可撓性材料にて構成したことを特徴とする
原稿フイルムの吸着昇降装置。 At first, only one side of the original film is lowered and stacked on the top surface of the plate material, and as the squeegee roller scans, the other side is gradually lowered and overlapped on the top surface of the plate material for exposure. After exposure, the original film is placed from the top surface of the plate material. In a film adsorption lifting device of an automatic exposure device, a plurality of vertical shafts are arranged around a vacuum surface plate on which a printing plate is placed, which can be raised and lowered, and which descend independently of each other in the scanning direction of a squeegee roller. A document film suction/elevating device characterized in that a vacuum pad is provided at the upper end of the vertical shaft to attract the bottom surface of the document film, and the vacuum pad is made of a flexible material such as rubber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13921484U JPH04361Y2 (en) | 1984-09-12 | 1984-09-12 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13921484U JPH04361Y2 (en) | 1984-09-12 | 1984-09-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6153752U JPS6153752U (en) | 1986-04-11 |
JPH04361Y2 true JPH04361Y2 (en) | 1992-01-08 |
Family
ID=30697594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13921484U Expired JPH04361Y2 (en) | 1984-09-12 | 1984-09-12 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04361Y2 (en) |
-
1984
- 1984-09-12 JP JP13921484U patent/JPH04361Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6153752U (en) | 1986-04-11 |
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