JPH11320811A - Manufacture of cylindrical screen - Google Patents
Manufacture of cylindrical screenInfo
- Publication number
- JPH11320811A JPH11320811A JP10139085A JP13908598A JPH11320811A JP H11320811 A JPH11320811 A JP H11320811A JP 10139085 A JP10139085 A JP 10139085A JP 13908598 A JP13908598 A JP 13908598A JP H11320811 A JPH11320811 A JP H11320811A
- Authority
- JP
- Japan
- Prior art keywords
- shape
- flat plate
- cylindrical
- cylindrical screen
- opening
- 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.)
- Pending
Links
Landscapes
- Manufacture Or Reproduction Of Printing Formes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はスクリーン印刷機に
用いられる円筒型スクリーン等の製造に適した円筒型ス
クリーンの製造方法に関し、詳しくは、形状回復温度が
低い形状記憶合金を用いて寸法精度に優れた円筒型スク
リーンを得る円筒型スクリーンの製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a cylindrical screen suitable for manufacturing a cylindrical screen or the like used in a screen printing machine. The present invention relates to a method of manufacturing a cylindrical screen for obtaining an excellent cylindrical screen.
【０００２】[0002]
【従来の技術】従来、スクリーン印刷機に用いられる円
筒型スクリーンには金属板を加工したものが用いられて
いる。そして、このような金属製の円筒型スクリーン
は、図７に示すように、銅板等の金属平板２にエッチン
グ法、アディティブ法あるいはレーザー法等で所定のパ
ターンに開口２２を形成した後、この開口２２が形成さ
れた金属平板２０を円筒状あるいは半円筒状等の成形体
に曲げ加工を施して製造されている。2. Description of the Related Art Conventionally, a cylindrical screen used in a screen printer has been processed from a metal plate. As shown in FIG. 7, such a metal cylindrical screen is formed by forming an opening 22 in a predetermined pattern on a metal flat plate 2 such as a copper plate by an etching method, an additive method, a laser method, or the like, and then forming the opening. It is manufactured by bending a metal plate 20 on which a metal plate 22 is formed into a cylindrical or semi-cylindrical shaped body.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上述し
た製造方法にあっては、開口２２を形成した後に曲げ加
工を行うため、曲げ加工時に開口２２縁部に応力集中が
発生し、歪みＤ（図７参照）が生じるという問題があ
る。このような歪みが生じた円筒型スクリーンは、印刷
時において被印刷物の印刷面との密着性が損なわれ、高
い印刷品質を得ることが困難である。However, in the above-described manufacturing method, since the bending is performed after the opening 22 is formed, stress concentration occurs at the edge of the opening 22 during the bending, and the distortion D (see FIG. 7) occurs. In a cylindrical screen having such distortion, the adhesion to a printing surface of a printing medium is impaired during printing, and it is difficult to obtain high print quality.
【０００４】一方、曲げ加工後の歪みの除去には熱処理
を行うことが有効であることが知られる。しかし、曲げ
加工後に熱処理を行うと、曲げ加工により得た曲率も熱
の影響を受け、成形体の曲率が所定の曲率からずれてし
まうという新たな問題を生じる。すなわち、図８ａ，ｂ
に示すように、曲げ加工により図中細線で示す所定の曲
率（適正断面形状）を得ても、後に熱処理を行うことで
成形体が太線で示すように熱変形を生じ、所定の曲率か
らずれてしまう（不良断面形状）。On the other hand, it is known that heat treatment is effective for removing distortion after bending. However, when the heat treatment is performed after the bending, the curvature obtained by the bending is also affected by the heat, which causes a new problem that the curvature of the molded body deviates from a predetermined curvature. 8a and 8b
As shown in the figure, even if a predetermined curvature (appropriate cross-sectional shape) indicated by a thin line in the figure is obtained by bending, the heat treatment is performed later, and the molded body undergoes thermal deformation as indicated by a thick line, and deviates from the predetermined curvature. (Defective cross-sectional shape).
【０００５】また、近年では、曲げ加工を施した後に、
すなわち、円筒形状の成形体を得た後、この成形体にア
ディティブ法を応用して開口を形成する方法も試みられ
ているが、光源の位置で開口の断面形状等が影響を受け
るため、開口の寸法や位置等に高い精度を得られず、印
刷品質への悪影響は避けられない。本発明は前記事情に
鑑みなされたもので、金属板を用いて開口の周縁等に歪
みを生じることなく、かつ、開口の寸法や位置等に高い
精度が得られる円筒型スクリーンの製造方法を提供する
ことを目的とする。In recent years, after bending,
That is, a method of forming an opening by applying an additive method to the formed body after obtaining a cylindrical shaped body has been attempted, but since the cross-sectional shape of the opening is affected at the position of the light source, the opening shape is reduced. However, it is not possible to obtain high accuracy in the dimensions and positions of the prints, and adverse effects on print quality cannot be avoided. The present invention has been made in view of the above circumstances, and provides a method of manufacturing a cylindrical screen that does not cause distortion in the periphery of an opening or the like using a metal plate and that can obtain high accuracy in dimensions and positions of the opening. The purpose is to do.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、本発明にかかる円筒型スクリーンの製造方法は、形
状記憶合金製の平板材を所定の円筒形状の筒体に曲げ加
工するとともに該筒体に加熱処理を施して形状記憶させ
る工程と、前記筒体を冷却して平板に戻す工程と、前記
平板に開口を所定のパターンで形成する工程と、前記平
板を形状記憶させた形状回復温度に戻し筒体に形状復帰
させる工程とを備えることを特徴とする。In order to achieve the above object, a method for manufacturing a cylindrical screen according to the present invention comprises bending a flat plate made of a shape memory alloy into a cylindrical body having a predetermined cylindrical shape. Heating the body to store the shape, cooling the cylinder back to a flat plate, forming an opening in the flat plate in a predetermined pattern, and recovering the shape of the flat plate into a shape recovery temperature. And returning the shape to a cylindrical shape.
【０００７】本発明にかかる円筒型スクリーンの製造方
法は、先ず、形状記憶合金の平板に曲げ加工とともに熱
処理を施して所定の円筒形状を記憶させ、この後に、所
定の温度まで冷却して平板に形状復帰させる。そして、
この平板にレーザーカット法等の周知の方法等で開口を
形成した後、形状回復温度に戻すと、記憶した円筒形状
が再現される。したがって歪み等を生じることが無く、
また、開口を高精度に形成できる。In the method of manufacturing a cylindrical screen according to the present invention, first, a flat plate of a shape memory alloy is subjected to a heat treatment together with a bending process to memorize a predetermined cylindrical shape, and then cooled to a predetermined temperature to form a flat plate. Return to shape. And
After an opening is formed in the flat plate by a known method such as a laser cutting method or the like, and the temperature is returned to the shape recovery temperature, the stored cylindrical shape is reproduced. Therefore, there is no distortion etc.
Further, the openings can be formed with high precision.
【０００８】[0008]
【発明の実施の形態】以下、本発明の実施の形態を図面
を参照して説明する。図１から図６は本発明の一の実施
の形態にかかる円筒型スクリーンの製造方法を説明し、
図１から図４が同製造方法による製造工程の概要を図番
順に示す模式図、図５が同円筒型スクリーンが用いられ
るスクリーン印刷機の模式斜視図、図６が同スクリーン
印刷機の要部を拡大して模式的に示す断面図である。Embodiments of the present invention will be described below with reference to the drawings. 1 to 6 illustrate a method of manufacturing a cylindrical screen according to one embodiment of the present invention,
1 to 4 are schematic diagrams showing the outline of the manufacturing process by the manufacturing method in the order of the figures, FIG. 5 is a schematic perspective view of a screen printer using the cylindrical screen, and FIG. 6 is a main part of the screen printer. It is sectional drawing which expands and is shown typically.
【０００９】先ず、図５，６を参照して円筒型スクリー
ンを用いるスクリーン印刷機の概要を説明すると、スク
リーン印刷機４０は、装置フレーム４２の印刷ステージ
上に円筒型スクリーン６０が回転自在に支持され、この
円筒型スクリーン６０内にスキージ８０がスキージホル
ダ８２により支持されて配設される。図示を省略する
が、装置フレーム４２の印刷ステージ上には被印刷物で
ある基板Ｐが搬送装置等で搬送されて載置され、この基
板Ｐが印刷後に搬出装置等で搬出される。First, an outline of a screen printer using a cylindrical screen will be described with reference to FIGS. 5 and 6. In the screen printer 40, a cylindrical screen 60 is rotatably supported on a printing stage of an apparatus frame 42. A squeegee 80 is disposed in the cylindrical screen 60 while being supported by a squeegee holder 82. Although not shown, a substrate P, which is an object to be printed, is transported and placed on a printing stage of the apparatus frame 42 by a transport device or the like, and after the substrate P is printed, the substrate P is unloaded by an unloading device or the like.
【００１０】円筒型スクリーン６０は、開口６２が所定
のパターンで貫通形成され（図６参照）、円筒型スクリ
ーン６０の内部にソルダーペーストＳの供給管等が配設
され、また、円筒型スクリーン６０はモータ等の回転駆
動手段に連結されている。そして、円筒型スクリーン６
０は、印刷時において、内部にソルダーペーストＳが供
給され、外周面を印刷ステージ上の基板Ｐ表面と接触さ
せた状態で回転駆動される。The cylindrical screen 60 has an opening 62 formed therethrough in a predetermined pattern (see FIG. 6), a supply pipe for the solder paste S and the like are provided inside the cylindrical screen 60, and the cylindrical screen 60 is provided. Is connected to a rotation driving means such as a motor. And the cylindrical screen 6
Reference numeral 0 indicates that during printing, the solder paste S is supplied to the inside and the outer peripheral surface is rotationally driven in contact with the surface of the substrate P on the printing stage.
【００１１】スキージホルダ８２は、図示しない支持機
構により円筒型スクリーン６０と同一の回転中心を中心
として回転自在に支持され、水平駆動手段であるシリン
ダ４４に連結される。このスキージホルダ８２は、スキ
ージ８０を円筒型スクリーン６０に対して一定の角度に
保持し、シリンダ４４の水平方向の作動力をスキージ８
０に伝達する。The squeegee holder 82 is supported by a support mechanism (not shown) so as to be rotatable about the same center of rotation as the cylindrical screen 60, and is connected to the cylinder 44, which is horizontal driving means. The squeegee holder 82 holds the squeegee 80 at a fixed angle with respect to the cylindrical screen 60, and applies the horizontal operating force of the cylinder 44 to the squeegee 8.
Transmit to 0.
【００１２】このスクリーン印刷機４０は、印刷時にお
いて、円筒型スクリーン６０を印刷ステージ上の基板Ｐ
と外接させ、この状態で円筒型スクリーン６０を回転駆
動し、また、スキージ８０をシリンダ４４により水平方
向に駆動し、ソルダーペーストＳをスキージ８０により
押圧する。すなわち、円筒型スクリーン６０内のソルダ
ーペーストＳをスキージ８０により押圧して円筒型スク
リーン６０の開口６２から押し出し、ソルダーペースト
Ｓをインキとして基板Ｐに回路パターン等を印刷する。The screen printer 40, during printing, applies the cylindrical screen 60 to the substrate P on the printing stage.
In this state, the cylindrical screen 60 is driven to rotate, the squeegee 80 is driven in the horizontal direction by the cylinder 44, and the solder paste S is pressed by the squeegee 80. That is, the solder paste S in the cylindrical screen 60 is pressed by the squeegee 80 and extruded from the opening 62 of the cylindrical screen 60, and a circuit pattern or the like is printed on the substrate P using the solder paste S as ink.
【００１３】以下、上述した円筒型スクリーン６０の製
造方法について説明する。先ず、形状記憶合金製の板材
を図１に示すような円筒型スクリーン６０と対応した所
定の大きさの平板６０Ａに裁断する。形状記憶合金とし
ては、ニッケル−チタン合金等の形状記憶に優れたもの
で、かつ、形状回復温度が低いもの、具体的には、形状
回復温度が、円筒型スクリーン６０が使用される印刷温
度であり、望ましくは、常温のものが用いられる。Hereinafter, a method of manufacturing the above-described cylindrical screen 60 will be described. First, a plate made of a shape memory alloy is cut into a flat plate 60A having a predetermined size corresponding to the cylindrical screen 60 as shown in FIG. As the shape memory alloy, those having excellent shape memory such as a nickel-titanium alloy and having a low shape recovery temperature, specifically, the shape recovery temperature is a printing temperature at which the cylindrical screen 60 is used. Yes, and preferably at room temperature.
【００１４】次に、平板６０Ａを曲げ治具等を用いて加
熱処理を行いつつ半円筒形状に曲げ加工し、この半円筒
形状が形状記憶された図２に示す半円筒形状の成形体６
０Ｂを得る。この曲げ加工は完成品である円筒型スクリ
ーン６０の曲率と対応する（同一）曲率を得るまで行
い、また、加熱処理は板材６０Ａを３００゜Ｃ〜６００
゜Ｃ程度に加熱する。なお、述べるまでもないが、上述
した加熱処理の温度は形状記憶合金の組成等に応じて適
宜適正な値が採用される。Next, the flat plate 60A is bent into a semi-cylindrical shape while performing a heat treatment using a bending jig or the like, and the semi-cylindrical shaped body 6 shown in FIG.
Obtain 0B. This bending is performed until a curvature corresponding to (same as) the curvature of the cylindrical screen 60 as a finished product is obtained.
Heat to about ゜ C. Needless to say, an appropriate value is adopted as the temperature of the above-described heat treatment depending on the composition of the shape memory alloy and the like.
【００１５】続いて、上記成形体６０Ｂを、形状回復温
度よりも低い所定の温度まで冷却して平板状に戻し、こ
の平板状に形状復帰した板材にレーザーカット法等で開
口６２を形成し、図３に示すように、開口６２が形成さ
れた開口加工済み平板６０Ｃを得る。ここで、冷却する
温度については特に言及しないが、成形体６０Ｂが平板
状に戻る温度であって、上述した加熱処理と同様に形状
記憶合金の組成等に応じて適宜選択される。なお、開口
６２の形成は上述したレーザーカット法に限らず種々の
加工法が採用できることは述べるまでもない。Subsequently, the compact 60B is cooled to a predetermined temperature lower than the shape recovery temperature and returned to a flat plate shape, and an opening 62 is formed in the flat plate shape by a laser cutting method or the like. As shown in FIG. 3, an opening-processed flat plate 60C having an opening 62 is obtained. Here, although the cooling temperature is not particularly mentioned, it is a temperature at which the compact 60B returns to a flat plate shape, and is appropriately selected according to the composition of the shape memory alloy as in the above-described heat treatment. It is needless to say that the formation of the opening 62 is not limited to the laser cutting method described above, and various processing methods can be adopted.
【００１６】この後、開口６２が形成された開口加工済
み平板６０Ｃを形状回復温度である常温まで温度上昇さ
せると、開口加工済み平板６０Ｃは記憶形状である円筒
形状を回復し、開口６２を有する円筒型スクリーン６０
が得られる。Thereafter, when the temperature of the flattened plate 60C in which the opening 62 is formed is raised to room temperature, which is a shape recovery temperature, the flattened plate 60C recovers the cylindrical shape, which is a memory shape, and has the opening 62. Cylindrical screen 60
Is obtained.
【００１７】上述したように本実施の形態は、所定の大
きさに裁断された平板６０Ｃに加熱処理と曲げ加工を施
して半円筒形状が記憶された成形体６０Ｂを成形した
後、この成形体６０Ｂを平板状に復帰するまで冷却し、
平板状の状態で開口２２を形成して開口加工済み平板６
０Ｃを得る。そして、この開口加工済み平板６０Ｃを常
温まで温度上昇させることで円筒型スクリーン６０が得
られる。したがって、開口６２を形成した後に塑性加工
を行うことなく円筒型スクリーン６０が得られ、歪みの
発生が防止でき、また、開口６２は平板状の状態で加工
形成できるため、高い寸法精度が得られる。As described above, in the present embodiment, the flat plate 60C cut into a predetermined size is subjected to heat treatment and bending to form a formed body 60B in which a semi-cylindrical shape is stored. 60B is cooled until it returns to the plate shape,
The opening 22 is formed in a flat state, and the opened flat plate 6 is formed.
Obtain 0C. Then, by raising the temperature of the flattened flat plate 60C to room temperature, the cylindrical screen 60 is obtained. Therefore, the cylindrical screen 60 can be obtained without performing plastic working after forming the opening 62, and generation of distortion can be prevented. Further, since the opening 62 can be formed in a flat plate state, high dimensional accuracy can be obtained. .
【００１８】[0018]
【発明の効果】以上説明したように、本発明にかかる円
筒型スクリーンの製造方法は、形状記憶合金製の平板材
を所定の円筒形状の筒体に曲げ加工するとともに該筒体
に加熱処理を施して形状記憶させる工程と、前記筒体を
冷却して平板に戻す工程と、前記平板に開口を所定のパ
ターンで形成する工程と、前記平板を形状記憶させた形
状回復温度に戻し筒体に形状復帰させる工程とを備える
構成とした。そのため、開口の周縁等に歪みを生じるこ
となく、かつ、開口の寸法や位置等に高い精度を有する
円筒型スクリーンが容易に製造でき、高品質の印刷が可
能となる。As described above, according to the method of manufacturing a cylindrical screen according to the present invention, a flat plate made of a shape memory alloy is bent into a predetermined cylindrical shape, and the cylindrical body is subjected to a heat treatment. Applying the shape and storing the shape, cooling the cylindrical body back to a flat plate, forming an opening in the flat plate in a predetermined pattern, and returning the flat plate to a shape recovery temperature in which the shape is stored in the cylindrical body. And a step of restoring the shape. Therefore, it is possible to easily manufacture a cylindrical screen having no distortion in the periphery of the opening or the like and high accuracy in the dimension and position of the opening, and to perform high-quality printing.
【図１】本発明の一の実施の形態にかかる円筒型スクリ
ーンの製造方法の工程の概要を示し、所定形状に裁断さ
れた形状記憶合金の平板を示す斜視図である。FIG. 1 is a perspective view showing an outline of steps of a method for manufacturing a cylindrical screen according to one embodiment of the present invention, and showing a flat plate of a shape memory alloy cut into a predetermined shape.
【図２】図１に続く工程で曲げ加工が施された成形体を
模式的に示す斜視図である。FIG. 2 is a perspective view schematically showing a molded body subjected to bending in a step following FIG.
【図３】図２に続く工程で開口が形成された平板を模式
的に示す斜視図である。FIG. 3 is a perspective view schematically showing a flat plate on which an opening is formed in a step following FIG. 2;
【図４】図３に続く工程で形状回復させて得られる円筒
型スクリーンを模式的に示す斜視図である。FIG. 4 is a perspective view schematically showing a cylindrical screen obtained by recovering the shape in a step following FIG. 3;
【図５】同円筒型スクリーンが用いられるスクリーン印
刷機の斜視図である。FIG. 5 is a perspective view of a screen printer using the cylindrical screen.
【図６】同スクリーン印刷機の一部を拡大して模式的に
示す斜視図である。FIG. 6 is an enlarged perspective view schematically showing a part of the screen printing machine.
【図７】従来の製造方法で製造された円筒型スクリーン
を模式的に示す斜視図である。FIG. 7 is a perspective view schematically showing a cylindrical screen manufactured by a conventional manufacturing method.
【図８】ａ，ｂがそれぞれ従来の製造方法で製造された
円筒型スクリーンの模式側面図である。8A and 8B are schematic side views of a cylindrical screen manufactured by a conventional manufacturing method.
４０……スクリーン印刷機、４２……装置フレーム、４
４……シリンダ、６０……円筒型スクリーン、６０Ａ…
…平板、６０Ｂ……成形体、６０Ｃ……開口加工済み平
板、６２……開口、８０……スキージ、８２……スキー
ジホルダ、Ｐ……基板、Ｓ……ソルダーペースト。40 screen printer, 42 device frame, 4
4 ... Cylinder, 60 ... Cylindrical screen, 60A ...
... flat plate, 60B ... molded body, 60C ... flat plate with opening processing, 62 ... opening, 80 ... squeegee, 82 ... squeegee holder, P ... board, S ... solder paste.
Claims (3)
状の筒体に曲げ加工するとともに該筒体に加熱処理を施
して形状記憶させる工程と、 前記筒体を冷却して平板に戻す工程と、 前記平板に開口を所定のパターンで形成する工程と、 前記平板を形状記憶させた形状回復温度に戻し筒体に形
状復帰させる工程と、 を備えることを特徴とする円筒型スクリーンの製造方
法。A step of bending a flat plate made of a shape memory alloy into a cylindrical body having a predetermined cylindrical shape and subjecting the cylindrical body to a heat treatment to store the shape; and cooling the cylindrical body back to a flat plate. Manufacturing a cylindrical screen, comprising: a step of forming an opening in the flat plate in a predetermined pattern; and a step of returning the flat plate to a shape recovery temperature in which the shape of the flat plate is memorized and returning the flat plate to its shape. Method.
使用される印刷時の温度であることを特徴とする請求項
１記載の円筒型スクリーンの製造方法。2. The method for manufacturing a cylindrical screen according to claim 1, wherein the shape recovery temperature is a temperature during printing when the cylindrical screen is used.
徴とする請求項１記載の円筒型スクリーンの製造方法。3. The method for manufacturing a cylindrical screen according to claim 1, wherein the shape recovery temperature is room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10139085A JPH11320811A (en) | 1998-05-21 | 1998-05-21 | Manufacture of cylindrical screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10139085A JPH11320811A (en) | 1998-05-21 | 1998-05-21 | Manufacture of cylindrical screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11320811A true JPH11320811A (en) | 1999-11-24 |
Family
ID=15237147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10139085A Pending JPH11320811A (en) | 1998-05-21 | 1998-05-21 | Manufacture of cylindrical screen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11320811A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827750A (en) * | 2015-05-21 | 2015-08-12 | 浙江喜得宝丝绸科技有限公司 | Spinning printing roller platemaking method and spinning printing roller platemaking device |
-
1998
- 1998-05-21 JP JP10139085A patent/JPH11320811A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827750A (en) * | 2015-05-21 | 2015-08-12 | 浙江喜得宝丝绸科技有限公司 | Spinning printing roller platemaking method and spinning printing roller platemaking device |
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