JPS6261935B2 - - Google Patents
Info
- Publication number
- JPS6261935B2 JPS6261935B2 JP56210540A JP21054081A JPS6261935B2 JP S6261935 B2 JPS6261935 B2 JP S6261935B2 JP 56210540 A JP56210540 A JP 56210540A JP 21054081 A JP21054081 A JP 21054081A JP S6261935 B2 JPS6261935 B2 JP S6261935B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- exposure
- reduction
- printing
- printing machine
- 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
- 238000007639 printing Methods 0.000 claims description 19
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002508 contact lithography Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/50—Projection printing apparatus, e.g. enlarger, copying camera with slit or like diaphragm moving over original for progressive exposure
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
Description
【発明の詳細な説明】
(1) 発明の技術分野
本発明はプリント配線パターンを記録してある
マスターフイルムからワークフイルムを製作する
ための焼付機の改良に関し、特に任意の大きさに
縮小焼付可能なフイルム焼付機に関する。[Detailed Description of the Invention] (1) Technical Field of the Invention The present invention relates to an improvement of a printing machine for producing a work film from a master film on which a printed wiring pattern is recorded, and in particular, it is capable of reducing printing to an arbitrary size. related to film printing machines.
(2) 技術の背景
プリント基板上にソルダーレジストをスタリー
ン印刷する際、ワークフイルムの伸びに起因する
印刷ずれが発生し、問題となつている。これは特
にパターンピツチの長いものに顕著に現われる傾
向にあり、このためスクリーン印刷での伸び分を
考慮して、あらかじめワークフイルムの状態でパ
ターンピツチを縮小しておく必要がある。しかし
てワークフイルムは通常マスターフイルムから密
着焼付により製作されるものであるが、かかる工
程で更に縮小焼付する試みがなされ、一部実用化
されている。しかし従来のフイルム縮小焼付機で
は縮小量の選択に制約があり、また品質的にも露
光が均一になされないなどの問題があるため、縮
小量を任意に選定でき、かつ取り扱いが簡単なフ
イルム縮小焼付機の実現が望まれているところで
ある。(2) Background of the technology When starne printing solder resist on a printed circuit board, printing misalignment occurs due to elongation of the work film, which is a problem. This tends to be particularly noticeable when the pattern pitch is long, so it is necessary to reduce the pattern pitch in advance in the work film state, taking into account the elongation caused by screen printing. Work films are usually manufactured from a master film by contact printing, but attempts have been made to further reduce printing in this process, and some have been put into practical use. However, with conventional film reduction printers, there are restrictions on the selection of the reduction amount, and there are also problems in terms of quality, such as not being able to achieve uniform exposure. The realization of a printing machine is desired.
(3) 従来技術と問題点
第１図は従来用いられているフイルム縮小焼付
機の１例を示す外観斜視図で、同図において、１
はスタンドであり、該スタンド１には固定ドラム
２および蛍光燈３が取り付けられている。焼付に
際しては、固定ドラム２の円周上にマスターフイ
ルム４と生フイルム５を密着させて固定し、これ
に蛍光燈を照射して生フイルム５を露光する。(3) Prior art and problems Figure 1 is an external perspective view showing an example of a conventional film reduction printer.
is a stand, and a fixed drum 2 and a fluorescent light 3 are attached to the stand 1. At the time of printing, the master film 4 and the raw film 5 are fixed in close contact with each other on the circumference of the fixed drum 2, and the raw film 5 is exposed by irradiating the same with a fluorescent light.
かかる方法により、第２図断面図に示すよう
に、マスターフイルム４の曲率半径R1と生フイ
ルム５の曲率半径R2の違いからマスターフイル
ム４の画像４ａが生フイルム５の画像５ａのごと
く縮小されることとなる。なお第２図中、第１図
に示したものと同じ部分は同一符号で表わす。 By this method, as shown in the sectional view of FIG. 2, the image 4a of the master film 4 is reduced to the image 5a of the raw film 5 due to the difference between the radius of curvature R1 of the master film 4 and the radius of curvature R2 of the raw film 5. It will be done. In FIG. 2, the same parts as those shown in FIG. 1 are represented by the same reference numerals.
しかし上記フイルム縮小焼付機による場合に
は、露光面の照度分布がフイルムの中央と端で極
端に違うこととなり、また縮小量が固定ドラム２
の径によつて決まるため、縮小量を変えたいとき
にはその都度固定ドラムを交換しなければならな
いなどの不便を生じている。 However, when using the above-mentioned film reduction printing machine, the illuminance distribution on the exposed surface is extremely different between the center and the edges of the film, and the amount of reduction is
Since this is determined by the diameter of the drum, it is inconvenient that the fixed drum must be replaced each time the amount of reduction is desired to be changed.
(4) 発明の目的
本発明は上記従来技術の問題点に鑑み、任意の
大きさに縮小でき、かつ照度分布が均一であり、
取り扱いの容易なフイルム縮小焼付機の提供を目
的とするものである。(4) Purpose of the Invention In view of the problems of the prior art described above, the present invention can be reduced to any size, and has a uniform illuminance distribution.
The object of the present invention is to provide a film reduction printing machine that is easy to handle.
(5) 発明の構成
そしてこの目的は、同一の回転軸上を相互に逆
方向へ連動可能な２つの側板と、該側板の傾斜面
に接触し、かつ張力を有するごとく設けられた露
光用ベルトと、該露光用ベルトに引張力を与える
ための定出力スプリング群とからなる露光部を設
け、一方可動スリツトと蛍光燈とからなる光照射
部を設け、これらの間に可撓性遮光板を介装した
ことを特徴とするフイルム縮小焼付機を提供する
ことによつて達成される。(5) Structure of the Invention The object of the invention is to provide two side plates that can move in opposite directions on the same rotation axis, and an exposure belt that is in contact with the inclined surface of the side plates and is provided with tension. and a group of constant output springs for applying a tensile force to the exposure belt, and a light irradiation section consisting of a movable slit and a fluorescent light, with a flexible light-shielding plate between them. This is achieved by providing a film reduction and printing machine characterized by an interposed film.
(6) 発明の実施例
以下、本発明の実施例を添付図面に基づいて説
明する。(6) Embodiments of the invention Hereinafter, embodiments of the present invention will be described based on the accompanying drawings.
第３図ａは本発明にかかるフイルム縮小焼付機
を模式的に示した組立図、第３図ｂは同焼付機の
側板の部分断面図で、１１は側板であり、同一の
回転軸１２上に、相互に逆方向へ、すなわち互に
離れまたは互に相手方に向け連動可能に２個設け
られる。側板１１の端部片面には円錐状の傾斜面
１１ａが形成されており、この傾斜面１１ａに接
触して円筒を形成するごとく露光用ベルト１３が
配設される。露光用ベルト１３は、その一端が側
板１１の端面に形成した溝部１１ｂに固定され、
またその他端が別途設けた定出力スプリング群１
４に接続されているため、常に引張力を受けた状
態となつており、従つて側板１１を図中Ａ矢印の
ごとく相互に移動させれば、その動きに追従して
露光用ベルト１３は図中Ｂ矢印のごとく上下方向
に移動し、結局曲率半径Ｒが任意に変更し得るこ
ととなる。 FIG. 3a is an assembly diagram schematically showing the film reduction printer according to the present invention, and FIG. 3b is a partial cross-sectional view of the side plate of the printer. Two of them are provided so as to be able to interlock in opposite directions, that is, to move away from each other or toward the other. A conical inclined surface 11a is formed on one side of the end of the side plate 11, and the exposure belt 13 is disposed in contact with this inclined surface 11a to form a cylinder. The exposure belt 13 has one end fixed to a groove 11b formed in the end surface of the side plate 11,
In addition, the other end is a constant output spring group 1 provided separately.
4, it is always under tension. Therefore, if the side plates 11 are moved relative to each other as shown by the arrows A in the figure, the exposure belt 13 will follow the movement and move as shown in the figure. It moves in the vertical direction as shown by the middle B arrow, and the radius of curvature R can be changed arbitrarily.
一方上記の構成とは別に、光源として蛍光燈１
５を設けるとともに、前記露光用ベルト１３の露
光面にほぼ垂直に光が照射されるようにスリツト
１６を配設する。スリツト１６には、更に可撓性
遮光板１７が接続されており、余分な光が露光部
へ浸入しないようになつている。 On the other hand, apart from the above configuration, a fluorescent lamp 1 is used as a light source.
5 is provided, and a slit 16 is provided so that light is irradiated substantially perpendicularly to the exposure surface of the exposure belt 13. A flexible light shielding plate 17 is further connected to the slit 16 to prevent excess light from entering the exposed area.
以上の構成により、焼付に際しては露光用ベル
ト１３上にマスターフイルム１８と生フイルム１
９を密着して固定し、側板１１を定速回転しなが
ら光を照射する。かかる露光により、前記第２図
につき説明したごとく、マスターフイルム１８と
生フイルム１９の曲率半径の差から縮小焼付が可
能となり、しかも光はほぼ垂直に露光面に当たる
ため、露光ムラがなく均質なワークフイルムが製
作される。更に、前記したごとく露光用ベルト１
３の曲率半径は側板１１の移動により任意に変更
し得るため、フイルムの縮小量もまた任意に選定
し得る構成となつている。 With the above configuration, the master film 18 and raw film 1 are placed on the exposure belt 13 during printing.
9 are closely fixed, and light is irradiated while rotating the side plate 11 at a constant speed. With such exposure, as explained with reference to FIG. 2, reduction printing is possible due to the difference in the radius of curvature between the master film 18 and the raw film 19, and since the light hits the exposed surface almost perpendicularly, a homogeneous workpiece with no uneven exposure can be obtained. A film is produced. Furthermore, as described above, the exposure belt 1
Since the radius of curvature of No. 3 can be arbitrarily changed by moving the side plate 11, the amount of reduction of the film can also be arbitrarily selected.
(7) 発明の効果
以上詳細に説明したように、本発明は、簡単な
構成で、かつ取り扱いの容易なフイルム縮小焼付
機を実現するものであり、これにより任意の大き
さに縮小焼付が可能となるだけでなく、露光ムラ
のない均質なマスターフイルムが製作されるなど
その与える効果は大である。(7) Effects of the Invention As explained in detail above, the present invention realizes a film reduction printing machine with a simple structure and easy handling, which enables reduction printing to any size. Not only this, but also a homogeneous master film with no exposure unevenness can be produced, which has great effects.
第１図は従来技術のフイルム縮小焼付機を示す
外観斜視図、第２図はフイルム縮小原理を示す模
式図、第３図ａは本発明にかかるフイルム縮小焼
付機を模式的に示す組立図、第３図ｂは同焼付機
の部分断面図である。
１……スタンド、２……固定ドラム、３，１５
……蛍光燈、４，１８……マスターフイルム、
５，１９……生フイルム、４ａ，５ａ……画像、
１１……側板、１１ａ……傾斜面、１１ｂ……溝
部、１２……回転軸、１３……露光用ベルト、１
４……定出力スプリング群、１６……可動スリツ
ト、１７……遮光板。
Fig. 1 is an external perspective view showing a conventional film reduction and printing machine, Fig. 2 is a schematic diagram showing the principle of film reduction, and Fig. 3a is an assembly diagram schematically showing a film reduction and printing machine according to the present invention. FIG. 3b is a partial sectional view of the printing machine. 1...Stand, 2...Fixed drum, 3,15
...Fluorescent light, 4,18...Master film,
5, 19... raw film, 4a, 5a... image,
11... Side plate, 11a... Inclined surface, 11b... Groove, 12... Rotating shaft, 13... Exposure belt, 1
4... constant output spring group, 16... movable slit, 17... light shielding plate.
Claims (1)
２つの側板、該側板の傾斜面に接触して円筒を形
成するごとく配設された露光用ベルト、該露光用
ベルトに引張力を与える定出力スプリング群とか
らなる露光部、蛍光燈と可動スリツトとからなる
光照射部とから成り、かかる露光部と光照射部と
の間に可撓性遮光板を介装したことを特徴とする
フイルム縮小焼付機。1. Two side plates that can be interlocked in mutually opposite directions on the same rotation axis, an exposure belt arranged to form a cylinder in contact with the inclined surface of the side plates, and a tensile force applied to the exposure belt. It is characterized by comprising an exposure section consisting of a group of constant output springs, and a light irradiation section consisting of a fluorescent lamp and a movable slit, and a flexible light shielding plate is interposed between the exposure section and the light irradiation section. Film reduction printing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56210540A JPS58113923A (en) | 1981-12-26 | 1981-12-26 | Film reduce-printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56210540A JPS58113923A (en) | 1981-12-26 | 1981-12-26 | Film reduce-printing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58113923A JPS58113923A (en) | 1983-07-07 |
| JPS6261935B2 true JPS6261935B2 (en) | 1987-12-24 |
Family
ID=16591034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56210540A Granted JPS58113923A (en) | 1981-12-26 | 1981-12-26 | Film reduce-printing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58113923A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0273336A (en) * | 1988-09-09 | 1990-03-13 | Toyo Ink Mfg Co Ltd | Method and device for forming image |
-
1981
- 1981-12-26 JP JP56210540A patent/JPS58113923A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58113923A (en) | 1983-07-07 |
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