JPH02102049A - Method and apparatus for bending of plate - Google Patents
Method and apparatus for bending of plateInfo
- Publication number
- JPH02102049A JPH02102049A JP25457988A JP25457988A JPH02102049A JP H02102049 A JPH02102049 A JP H02102049A JP 25457988 A JP25457988 A JP 25457988A JP 25457988 A JP25457988 A JP 25457988A JP H02102049 A JPH02102049 A JP H02102049A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- offset printing
- fold
- implement
- printing plate
- 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
- 238000005452 bending Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims description 13
- 238000007645 offset printing Methods 0.000 claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 238000007639 printing Methods 0.000 description 3
- -1 silver halide Chemical class 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
Landscapes
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Abstract
Description
【発明の詳細な説明】
（Ａ）産業上の利用分野
本発明はオフセット印刷版をオフセット輪転印刷機の版
胴に装置するに先立って行われる印刷版の折り曲げ方法
とその装置に関し、特に樹脂フィルム支持体を用いたオ
フセット印刷版の折り曲げに適した版曲げ方法及びその
装置に関する。DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Field of Application The present invention relates to a method and apparatus for folding an offset printing plate, which is carried out before the printing plate is mounted on the plate cylinder of a rotary offset printing press, and in particular, to The present invention relates to a plate bending method and apparatus suitable for bending an offset printing plate using a support.
（Ｂ）従来技術及びその問題点
樹脂フィルムを支持体とするオフセット印刷版の版曲げ
方法として種々のものが知られている。(B) Prior art and its problems Various methods are known for bending an offset printing plate using a resin film as a support.
例えば、加熱手段を配設した装置を用いる方法が実開昭
５６−１５２１１２号公報「オフセット印刷版の曲げ装
置」等で知られている。しかし、樹脂フィルムを支持体
とするオフセット印刷版をオフセット輪転印刷機の版胴
に有効に装着できる程度に十分析り曲げることはできず
、かつその折り曲げ角度を保持できない。また、加熱を
強くするとオフセット印刷版の感光層に悪影響を及ぼし
、オフセット印刷版が高熱により変形するという欠点が
ある。For example, a method using a device equipped with a heating means is known from Japanese Utility Model Application Publication No. 56-152112 entitled "Offset printing plate bending device". However, it is not possible to bend an offset printing plate using a resin film as a support sufficiently to the extent that it can be effectively mounted on the plate cylinder of a rotary offset printing press, and the bending angle cannot be maintained. In addition, if the heating is strong, there is a drawback that the photosensitive layer of the offset printing plate is adversely affected, and the offset printing plate is deformed by the high heat.
また別の方法として、オフセット印刷機を板曲機で折り
曲げた後、折り曲げ部を加圧ローラーで加圧する方法及
び治具については特開昭６２−１５２８５６号公報「オ
フセット印刷版の折り曲げ方法及びその治具」で知られ
ているが、折り曲げ部を加圧する際、折り目を正確に折
るのは困難で、又、−度オフセット印刷版を版曲げ機か
ら取り外す必要があるとともに、板曲機の別に加圧治具
を必要とするという種々の欠点がある。Another method is to press the bent part with a pressure roller after bending the offset printing machine with a plate bending machine and a jig, which is described in Japanese Patent Application Laid-open No. 152856/1983, "Method of folding offset printing plates and its method." However, it is difficult to fold the crease accurately when pressurizing the folded part, and it is necessary to remove the -degree offset printing plate from the plate bending machine, and it is not necessary to use a separate plate bending machine. There are various drawbacks such as requiring a pressurizing jig.
（Ｃ）発明の目的
本発明の目的は、上記欠点を解消し、樹脂フィルムを支
持体とするオフセット印刷版をオフセット輪転印刷機の
版胴に有効に装着することのできる程度に十分に折り曲
げ、かつその折り曲げ角度を保持することのできるオフ
セット印刷版の折り曲げ方法及びそのための装置を提供
するにある。(C) Object of the Invention The object of the present invention is to solve the above-mentioned drawbacks, and to provide a method for bending an offset printing plate having a resin film as a support sufficiently to the extent that it can be effectively mounted on the plate cylinder of a rotary offset printing press. It is an object of the present invention to provide a method for folding an offset printing plate and an apparatus therefor, which can maintain the folding angle.
（Ｄ）発明の構成
本発明の目的は、オフセット印刷版に折り目をつけたあ
と、該折り目を介して重ね折りし、重ね折りした状態で
該折り目を加熱状態下に加圧することによって達成され
た。(D) Structure of the Invention The object of the present invention is achieved by forming a crease on an offset printing plate, folding it over and over again through the crease, and pressing the fold under heating in the overfolded state. .
本発明の上記方法は、次の装置により実施することがで
きる。The above method of the present invention can be carried out using the following apparatus.
台座、該台座端部に形成した内側可動刃部、該台座上に
設けてなる版押さえ具、版を折曲げるとともに、前記内
側可動刃部が移動したあと、前記版押さえ具との間に版
の折曲げ部を挟んで、該折曲げ部を加圧できるようにし
た回転曲げ具を備え、前記内側可動刃部、版押さえ具、
回転曲げ具の少なくとも一箇所に加熱手段を設けたこと
を特徴とする版曲げ装置。A pedestal, an inner movable blade formed at the end of the pedestal, a plate holder provided on the pedestal, and a plate between the plate holder and the plate holder after the plate is bent and the inner movable blade moves. The inner movable blade part, the plate presser,
A plate bending device characterized in that a heating means is provided at at least one location of a rotary bending tool.
（Ｅ）実施例
以下、本発明を図面に基づいて詳細に説明するが、本発
明はこれに限定されない。(E) Examples Hereinafter, the present invention will be explained in detail based on the drawings, but the present invention is not limited thereto.
（１）厚さ１７５μのポリエチレテレフタレートフィル
ムの上に下引層を介して、カーボンブラックを含有する
ハレーション防止層、オルソ増感されたハロゲン化銀乳
剤層、物理現像核を含有する層を有する印刷版材料に原
稿撮影を行ない、続いて銀錯塩拡散転写現像液で現像し
てオフセット印刷版１を作成した。(1) Printing with an antihalation layer containing carbon black, an ortho-sensitized silver halide emulsion layer, and a layer containing physical development nuclei placed on a 175μ thick polyethylene terephthalate film via a subbing layer. An original was photographed on the plate material, and then developed with a silver complex diffusion transfer developer to create an offset printing plate 1.
（２）第１図のようにオフセット印刷版１を版押さえ具
３、回転曲げ具４、と台座６、内側可動刃部２の間に導
入しオフセット印刷版１を版押さえ具９で固定する。(2) As shown in Fig. 1, introduce the offset printing plate 1 between the plate holder 3, rotary bending tool 4, pedestal 6, and inner movable blade part 2, and fix the offset printing plate 1 with the plate holder 9. .
（３）次に第２図のように内側可動刃部２にオフセット
印刷版１を沿わせて回転曲げ具４を回転曲げ具レバー８
にて回転させ、オフセット印刷版１を曲げ折り目をつけ
る。(3) Next, as shown in FIG.
The offset printing plate 1 is rotated to bend and crease the offset printing plate 1.
（４）オフセット印刷版１の折り目が版押さえ具３と回
転曲げ具４の端であると折り目に圧力が十分かからず、
正確に十分面がらない為、スライドネジ５を介して第３
図に示すように版押さえ具３と回転曲げ具４をオフセッ
ト印刷版１の折り目から右方向にスライドさせる。(4) If the fold of the offset printing plate 1 is at the end of the plate presser 3 and the rotary bending tool 4, insufficient pressure will not be applied to the fold.
Since the surface is not sufficiently accurate, the third
As shown in the figure, the plate holding tool 3 and the rotary bending tool 4 are slid rightward from the fold line of the offset printing plate 1.
（５）内側可動刃部２を、更に回転曲げ具４が回転でき
るように、移動手段（図示せず）で移動させて、第４図
のようにオフセット印刷版１の折り目を固定押え具３と
回転曲げ具４の間に挟み、加圧して十分に曲げる。(5) Move the inner movable blade part 2 using a moving means (not shown) so that the rotary bending tool 4 can further rotate, and as shown in FIG. and the rotary bending tool 4, and apply pressure to bend it sufficiently.
この間の加熱温度は約６０℃である。実開昭５６−１５
２１１２号公報の場合には、８０℃〜９０℃の加熱が必
要であるが、これより低温の６０℃付近の加熱で加熱成
型可能であり、オフセット印刷版１の感光層に悪影響を
与えることなく、又高熱で印刷版が変形するというトラ
ブルもない。The heating temperature during this time is about 60°C. Jitsukai 1976-15
In the case of Publication No. 2112, heating at 80°C to 90°C is required, but it is possible to heat mold by heating at a lower temperature around 60°C without adversely affecting the photosensitive layer of the offset printing plate 1. Also, there is no problem of the printing plate being deformed due to high heat.
（Ｆ）発明の効果
本発明によれば、オフセット印刷版の感光層に悪影響を
及ぼすこともなく、また高熱によりオフセット印刷版が
変形して折り目が湾曲するという問題もなく、また、別
に加圧治具を必要とせず、樹脂フィルムを支持体とする
オフセット印刷版をオフセット輪転印刷機の版胴に有効
に装着できる程度に十分な角度に折り曲げ、かつその角
度を保持させることができる。(F) Effects of the Invention According to the present invention, there is no adverse effect on the photosensitive layer of the offset printing plate, there is no problem that the offset printing plate is deformed by high heat and the creases are curved, and there is no need to apply pressure. Without the need for a jig, it is possible to bend an offset printing plate having a resin film as a support at an angle sufficient to effectively mount it on the plate cylinder of a rotary offset printing press, and to maintain that angle.
本発明の方法及び装置は樹脂フィルムを支持体とするオ
フセット印刷版だけでなく、紙あるいは紙基体の両面を
ポリエチレンのような樹脂で被覆した支持体を用いたオ
フセット印刷版の版曲げにも用いることができる。The method and apparatus of the present invention can be used not only for offset printing plates using a resin film as a support, but also for plate bending of offset printing plates using a support made of paper or a paper base coated with a resin such as polyethylene on both sides. be able to.
第１図から第４図は本発明の実施態様を示す概略側面図
である。
１・・・・・・オフセット印刷版
２・・・・・・内側可動刃部
３・・・・・・版押さえ具
４・・・・・・回転曲げ具
５・・・・・・スライドネジ
６・・・・・・台座
７・・・・・・加熱ヒーター
８・・・・・・回転曲げ具レバー
９・・・・・・版押さえ具
冨（■
掌７４−Ｑ
掌ユ１コ
第３０1 to 4 are schematic side views showing embodiments of the present invention. 1...offset printing plate 2...inner movable blade part 3...plate holder 4...rotary bending tool 5...slide screw 6... Pedestal 7... Heating heater 8... Rotating bending tool lever 9... Plate holding tool depth (■ Palm 74-Q Palm Yu 1st 30
Claims (1)
を介して重ね折りし、重ね折りした状態で該折り目を加
熱状態下に加圧することを特徴とする版曲げ方法。 ２、台座、該台座端部に形成した内側可動刃部、該台座
上に設けてなる押さえ具、版を折曲げるとともに、前記
内側可動刃部が移動したあと、前記版押さえ具との間に
版の折曲げ部を挟んで該折曲げ部を加圧できるようにし
た回転曲げ具を備え、前記内側可動刃部、版押さえ具、
回転曲げ具の少なくとも一箇所に加熱手段を設けたこと
を特徴とする版曲げ装置。[Scope of Claims] 1. A plate bending method, which comprises making creases on an offset printing plate, then folding the plate over and over again through the creases, and pressing the folds under heating in the overfolded state. 2. A pedestal, an inner movable blade formed at the end of the pedestal, a presser provided on the pedestal, and a space between the plate holder and the plate holder after the plate is bent and the inner movable blade moves. A rotary bending tool is provided which is capable of sandwiching the bent part of the plate and pressurize the bent part, the inner movable blade part, the plate holding tool,
A plate bending device characterized in that a heating means is provided at at least one location of a rotary bending tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25457988A JPH02102049A (en) | 1988-10-07 | 1988-10-07 | Method and apparatus for bending of plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25457988A JPH02102049A (en) | 1988-10-07 | 1988-10-07 | Method and apparatus for bending of plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02102049A true JPH02102049A (en) | 1990-04-13 |
Family
ID=17266998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25457988A Pending JPH02102049A (en) | 1988-10-07 | 1988-10-07 | Method and apparatus for bending of plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02102049A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1447238A2 (en) | 2003-02-13 | 2004-08-18 | Konica Minolta Holdings, Inc. | Printing plate material, process of folding the same, and printing process |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62152856A (en) * | 1985-12-27 | 1987-07-07 | Mitsubishi Paper Mills Ltd | Folding of offset printing plate and its jigs |
-
1988
- 1988-10-07 JP JP25457988A patent/JPH02102049A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62152856A (en) * | 1985-12-27 | 1987-07-07 | Mitsubishi Paper Mills Ltd | Folding of offset printing plate and its jigs |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1447238A2 (en) | 2003-02-13 | 2004-08-18 | Konica Minolta Holdings, Inc. | Printing plate material, process of folding the same, and printing process |
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