JP4351781B2 - Plate mounting material - Google Patents

Plate mounting material Download PDF

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Publication number
JP4351781B2
JP4351781B2 JP2000043031A JP2000043031A JP4351781B2 JP 4351781 B2 JP4351781 B2 JP 4351781B2 JP 2000043031 A JP2000043031 A JP 2000043031A JP 2000043031 A JP2000043031 A JP 2000043031A JP 4351781 B2 JP4351781 B2 JP 4351781B2
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Japan
Prior art keywords
plate
plate material
mounting member
printing
tip
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Expired - Fee Related
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JP2000043031A
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Japanese (ja)
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JP2001232762A (en
Inventor
睦 浪華
近司 大石
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Fujifilm Corp
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Fujifilm Corp
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Priority to JP2000043031A priority Critical patent/JP4351781B2/en
Priority to EP01103606A priority patent/EP1127687B1/en
Priority to DE60144403T priority patent/DE60144403D1/en
Priority to US09/788,619 priority patent/US6736065B2/en
Publication of JP2001232762A publication Critical patent/JP2001232762A/en
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Publication of JP4351781B2 publication Critical patent/JP4351781B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、印刷装置や製版装置の版胴に版材を装着するための、版材装着用部材に関する。
【0002】
【従来の技術】
従来、印刷機等の版胴に、版材を装着するための様々な技術が知られている。図7及び図8に、刷版を印刷機の版胴に装着するための刷版装着装置を示す。図7は、図8におけるY−Y概略断面図、図8は、図7におけるX矢視図である。
【0003】
図7に示すように、印刷機の版胴61は、円柱の一部分を当該円柱の軸方向に切り取り、その切り口である略平らな面(以下、平面部61aとよぶ)に溝部65を設けたような形状を有している。そして溝部65内には、刷版70の先端である版先を挟持する版先クランプ機構62と、刷版70の後端である版尻を挟持する版尻クランプ機構63とが設けられている。各クランプ機構62,63は、その上面が平面部61aと略同一平面を形成する下歯62b,63bと、下歯に回動可能に支持され、下歯上面との間で版先又は版尻を挟持可能な上歯62a,63aとを備えている。さらに、溝部65底面上で版先クランプ機構62および版尻クランプ機構63を前後、左右、斜めに位置調整可能な、図示しない位置調整機構を備えている。
【0004】
版胴61の平面部61aと曲面部61bとの間には頂部61cが形成されている。図示しないが、版胴によっては、平面部の代わりにクランプ機構の下歯上面等が、曲面部との間に頂部を形成するものもある。
通常、平面部61aと曲面部61bとが交差する部分は丸められて、半径5〜30mmの曲面になっているが、このような部分も本明細書においては頂部と呼ぶことにする。
【0005】
そして図8に示すように、版先クランプ機構の下歯62b上面には、版胴61の軸方向に間隔を隔てた2箇所に、位置決めピン64が突設されている。版先クランプ機構の上歯62aの、位置決めピン64に対応する箇所には、切欠66が形成されている。また、図中2点鎖線で示される刷版70の版先70aにも、位置決めピン64に対応する箇所に切欠71が形成されている。
【0006】
【発明が解決しようとする課題】
ところで、近年の印刷物の小ロット化および多様化に伴って、安価でかつ取り扱いが容易な主に金属以外の材料(例えば、プラスチックフィルム、紙等)からなる支持体に感光層を設けた構成の版材(本明細書において、可撓性の版材とよぶ)へのニーズが高まっている。しかしながら、このような版材は可撓性が高いので、版胴に装着する際にいくつかの問題が生じる。
【0007】
例えば図7及び図8に示した刷版装着装置により、可撓性の刷版70を版胴61に装着する場合、オペレータが版尻70bを把持しながら、版先クランプ機構の上歯62aと下歯62bとの間に刷版の版先70aを押し込み、2箇所の位置決めピン64に当該版先を当接させた際に、版先70aが変形し、その変形した状態で版先70aが固定されてしまうことがある。すなわち、菊半裁判以上の刷版を装着可能な版胴においては、版胴61における2箇所の位置決めピン64の間隔がかなり広くなり、刷版装着時に、オペレータが可撓性の刷版70を少しでも押しすぎると、2箇所の位置決めピン64の間から版先70aが押し込み方向に突出するように、刷版70が変形してしまうのである。しかし、このような変形を避けようとして刷版70の押し込みが不十分になると、刷版を正確に位置決めすることができない。
【0008】
前記例のように、可撓性の版材の版胴への装着性は悪く、可撓性の版材を版胴に常に一定の状態で装着することは困難であった。したがって、複数の版胴を要し、それらの版胴間の精密な見当合わせが必要とされる多色印刷(例えば4色印刷)等に、この可撓性の版材を適用すると見当ずれが生じてしまう。
本発明は以上のような事情に鑑みてなされたもので、その目的は、可撓性の版材を確実かつ容易に版胴に装着することを可能にすることにある。
【0009】
【課題を解決するための手段】
本発明の前記目的は、上歯及び下歯を有する版先クランプ機構を備えた版胴に可撓性の版材を装着するために前記版材の版先に取り付けられる版材装着用部材であって、前記版先に備えられた複数の取付孔に嵌挿される複数の取付ピンを基板上に備えており、前記基板を前記上歯と前記下歯との間で前記版先クランプ機構に配置された位置決めピンに当接されることで前記版先の位置決めを行い、前記基板の前記上歯及び前記下歯に挟持される箇所に変形防止切欠が設けられている版材装着用部材によって達成することができる。
【0010】
ここで、可撓性の版材とは、金属以外の材料である、プラスチックフィルムや紙からなる支持体や、これらを複合化した形態の支持体等を挙げることができる。更に詳しくは、ポリエステル、ポリエチレンテレフタレート、ポリエチレンナフタレート、ポリカーボネート等のプラスチックフィルムからなる支持体、紙にポリエチレンやポリプロピレン等のプラスチックシートをラミネートした複合シートからなる支持体等が挙げられる。支持体の厚みは、75〜500μmが適当であるが、用いる支持体の種類と印刷条件により最適な厚みは変動する。一般には、100〜400μmが最も好ましい。
版先クランプ機構に配置された位置決めピンとは、版先クランプ機構の下歯上面に上歯に向けて突設されたもの、版先クランプ機構の上歯下面に下歯に向けて突設されたもの、版胴に突設されて版先クランプ機構近傍に配置されたもの等を含む。
版材装着用部材の基板の材質は、可撓性の版材より高剛性のものであることが好ましく、金属等を例示できる。取付ピンは、基板に一体的に形成されたものでもよいし、基板に後付けされたものでもよい。
【0011】
以上のような版材装着用部材を用いることによって、可撓性の版材の版先が版材装着用部材によって保護され、位置決めピンの間から版先が突出するように版材が変形することがなくなる。したがって、可撓性版材の版胴への装着性が著しく向上され、オペレータの負担を軽減できるとともに、見当ずれが生じなくなり多色印刷等にも可撓性版材を使用できるようになる。また、変形防止切欠により、版材装着用部材の耐久性を向上できる。
【0012】
また前記構成において、前記複数の取付ピンが、前記版材の幅方向に沿って前記基板上に備えられ、かつ、取付ピン間の間隔が400mm以下であれば、位置決めピンの間から版先が突出するように版材が変形することを防止できる。さらに好ましくは、取付ピン間の間隔が270mm以下であれば、版材が変形することを一層確実に防止できる。なお、取付ピン間の間隔は、前記範囲内であれば一定でなくてもよい
【0013】
【発明の実施の形態】
以下、本発明の実施形態を、図面に基づいて詳細に説明する。なお、既に説明した部材等については、図中に同一符号または相当符号を付すことにより、説明を簡略化或いは省略する。
図1に、本発明の第1実施形態である版材装着用部材10と、版材装着用部材10を取り付ける可撓性の版材としてのポリエステル製の刷版80とを示す。
刷版80の版先80aには、図8に示した2箇所の位置決めピン64に対応する箇所に、その周縁が略U字状である切欠81が形成されている。また版先80aには、刷版80の幅方向(版胴の軸方向に沿った方向。図では左右方向)に一定の間隔W1を隔てて、複数(ここでは7個)の取付孔82が穿設されている。取付孔82は、切欠81と同時に形成することができる。
【0014】
版材装着用部材10は、鋼、ステンレス鋼、その他合金鋼、黄銅等からなる、刷版80の幅以上の長さの帯状(長方形状)の基板11を備えている。基板11には、図8に示した2箇所の位置決めピン64に対応する箇所に、円形状の嵌挿孔13が設けられている。また基板11には、当該基板の長手方向に一定の間隔W1(ここでは120mm)を隔てて、複数(ここでは7本)の取付ピン12が突設されている。複数の取付ピン12は、刷版80の幅方向に沿った、すなわち版材装着用部材10の長手方向に沿った直線上に設けられている。取付ピン12の大きさは限定されないが、例えば直径6mm、高さ4mm程度とすることができる。基板11の短手方向の幅も限定されず、版胴に取り付けられた際に版胴の頂部にかからない程度の幅であればよい。
【0015】
図2に、図1に示した刷版80の版先80aに版材装着用部材10を取り付けた際の、刷版80の切欠81近傍の拡大図を示す。図2に示すように、刷版80の取付孔82に版材装着用部材10の取付ピン12を挿着することで、刷版80に版材装着用部材10が固定される。ここでは、版材装着用部材10の円形状嵌挿孔13の周縁の一部が、刷版80の切欠81の略U字状周縁の湾曲部と一致するように設定されている。
【0016】
刷版80を図8に示した版胴61に装着する際には、版先クランプ機構62の位置決めピン64に版材装着用部材10の嵌挿孔13を嵌挿した状態で、当該版材装着用部材10に刷版80の版先80aを固定する。
【0017】
図3に、図2におけるIII−III断面図を示す。図3に2点鎖線で示すように、版材装着用部材10の嵌挿孔13に版胴の位置決めピン64を嵌挿した際には、刷版80の切欠81内周面は、版材装着用部材10の嵌挿孔13の内周面とともに位置決めピン64に当接する。
【0018】
以上のような版材装着用部材10を用いることにより、可撓性の刷版80の版先80aが版材装着用部材10によって保護され、位置決めピン64の間から版先80aが突出するように刷版80が変形することがなくなる。したがって、可撓性刷版80の版胴への装着性が著しく向上され、オペレータの負担を軽減できるとともに、見当ずれが生じなくなり多色印刷等にも可撓性刷版80を使用できるようになる。
なお、従来より使用している版胴をそのまま用いることができるので、設備コストが高くつくこともない。
【0019】
図4に、本発明の第2実施形態である版材装着用部材30と刷版80とを示す。版材装着用部材30は、刷版80の幅以上の長さの基板31を備えている。基板31には、図8に示した版胴61の2箇所の位置決めピン64に対応する箇所に、その周縁が略U字状である切欠33が設けられている。また基板31には、当該基板の長手方向に一定の間隔W2(ここでは120mm)を隔てて、複数の(ここでは7本)の取付ピン32が突設されている。
【0020】
図5に、図4に示した刷版80の版先80aに版材装着用部材30を取り付けた際の、刷版80の切欠81近傍の拡大図を示す。同図に示すように、刷版80の取付孔82に版材装着用部材30の取付ピン32を挿着することで、刷版80に版材装着用部材30が固着される。ここでは、版材装着用部材30の切欠33の周縁が、刷版80の切欠81の周縁と一致するように設定されている。
【0021】
以上のような版材装着用部材30を用いることにより、可撓性の刷版80の版先80aが版材装着用部材30によって保護され、位置決めピン64の間から版先80aが突出するように刷版80が変形することがなくなる。
また、版材装着用部材30によれば、刷版80の版先80aに版材装着用部材30を固定してから当該版先を版先クランプ機構に固定する際に、U字状切欠33を介して版材装着用部材30を版先クランプ機構の上歯と下歯の間に差し込むことができるので、版先80aの位置決め作業が一層簡略化される。
【0022】
図6に、本発明の第3実施形態である版材装着用部材50と刷版80とを示す。版材装着用部材50は、刷版80の幅以上の長さの基板51を備えている。基板51には、図8に示した版胴61の2箇所の位置決めピン64に対応する箇所に、円形状の嵌挿孔53が設けられている。また基板51には、当該基板の長手方向に一定の間隔を隔てて、複数の(ここでは7本)の取付ピン52が突設されている。また基板51には、当該基板の、版先クランプ機構の上歯及び下歯に挟持される箇所である、取付ピン52が突設された側とは反対側の長辺に、複数(ここでは6個)の変形防止切欠54が等間隔で設けられている。ここでは変形防止切欠54が、平面視略台形状とされている。
【0023】
以上のような版材装着用部材50においては、版先クランプ機構の上歯と下歯によって基板51を挟持されることで基板51が押しつぶされても、版材装着用部材50全体が変形しないように、変形防止切欠54の形状が適宜変形する。すなわち、版材装着用部材50全体の変形を、変形防止切欠54によって吸収する。したがって、版材装着用部材50の耐久性を向上できる。
【0024】
なお、本発明は前述した実施形態に限定されるものではなく、適宜な変形・改良等が可能である。
【0025】
【発明の効果】
以上詳細に説明したように、本発明の版材装着用部材によれば、可撓性版材の版胴への装着性が著しく向上され、オペレータの負担を軽減できるとともに、見当ずれが生じなくなり多色印刷等にも可撓性版材を使用できるようになる。
【図面の簡単な説明】
【図1】本発明の第1実施形態を示す平面図である。
【図2】図1における要部拡大図である。
【図3】図2におけるIII−III断面図である。
【図4】本発明の第2実施形態を示す平面図である。
【図5】図4における要部拡大図である。
【図6】本発明の第3実施形態を示す平面図である。
【図7】従来の版材装着装置を示す図である。
【図8】図7におけるX矢視図である。
【符号の説明】
10,30,50 版材装着部材
11,31,51 基板
12,32,52 取付ピン
54 変形防止切欠
80 可撓性の刷版(可撓性の版材)
80a 版先
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a plate material mounting member for mounting a plate material on a plate cylinder of a printing apparatus or plate making apparatus.
[0002]
[Prior art]
Conventionally, various techniques for mounting a plate material on a plate cylinder of a printing machine or the like are known. 7 and 8 show a plate mounting apparatus for mounting a printing plate on a plate cylinder of a printing machine. 7 is a schematic YY sectional view of FIG. 8, and FIG. 8 is a view taken in the direction of arrow X in FIG.
[0003]
As shown in FIG. 7, a plate cylinder 61 of a printing machine has a cylindrical portion cut out in the axial direction of the cylinder, and a groove portion 65 is provided on a substantially flat surface (hereinafter referred to as a flat portion 61a) that is the cut end. It has such a shape. In the groove 65, a plate tip clamp mechanism 62 that holds the plate tip that is the front end of the printing plate 70 and a plate edge clamp mechanism 63 that holds the plate bottom that is the rear end of the plate 70 are provided. . Each clamp mechanism 62, 63 is supported by the lower teeth 62b, 63b whose upper surfaces form substantially the same plane as the flat surface portion 61a and the lower teeth so as to be rotatable. The upper teeth 62a and 63a are provided. Further, a position adjusting mechanism (not shown) is provided that can adjust the position of the plate tip clamp mechanism 62 and the plate edge clamp mechanism 63 in the front, rear, left, and right directions on the bottom surface of the groove 65.
[0004]
A top portion 61 c is formed between the flat surface portion 61 a and the curved surface portion 61 b of the plate cylinder 61. Although not shown, depending on the plate cylinder, the upper surface of the lower teeth of the clamp mechanism may form a top portion between the curved surface portion instead of the flat surface portion.
Usually, the portion where the flat surface portion 61a and the curved surface portion 61b intersect is rounded to form a curved surface having a radius of 5 to 30 mm. Such a portion is also referred to as a top portion in this specification.
[0005]
As shown in FIG. 8, positioning pins 64 protrude from the upper surface of the lower teeth 62 b of the plate tip clamping mechanism at two locations spaced in the axial direction of the plate cylinder 61. A notch 66 is formed at a location corresponding to the positioning pin 64 of the upper teeth 62a of the plate tip clamping mechanism. Further, a notch 71 is also formed at a location corresponding to the positioning pin 64 in the plate tip 70a of the printing plate 70 indicated by a two-dot chain line in the drawing.
[0006]
[Problems to be solved by the invention]
By the way, with the recent trend toward smaller and diversified printed materials, the photosensitive layer is provided on a support made of a material other than metal (for example, plastic film, paper, etc.) that is inexpensive and easy to handle. There is an increasing need for plate materials (referred to as flexible plate materials in this specification). However, since such a plate material is highly flexible, several problems arise when it is mounted on the plate cylinder.
[0007]
For example, when the flexible printing plate 70 is mounted on the plate cylinder 61 using the printing plate mounting apparatus shown in FIGS. 7 and 8, the operator holds the plate bottom 70b and the upper teeth 62a of the plate tip clamping mechanism. When the plate tip 70a of the printing plate is pushed between the lower teeth 62b and the plate tip is brought into contact with the two positioning pins 64, the plate tip 70a is deformed, and the plate tip 70a is deformed in the deformed state. It may be fixed. In other words, in a plate cylinder on which a plate larger than the Kikuhan trial can be mounted, the distance between the two positioning pins 64 in the plate cylinder 61 is considerably widened, and the operator presses the flexible plate 70 when the plate is mounted. If it is pushed too much, the printing plate 70 is deformed so that the plate tip 70a protrudes between the two positioning pins 64 in the pushing direction. However, if the press of the printing plate 70 is insufficient to avoid such deformation, the printing plate cannot be accurately positioned.
[0008]
As in the above example, the mounting property of the flexible plate material to the plate cylinder was poor, and it was difficult to always mount the flexible plate material on the plate cylinder in a constant state. Therefore, when this flexible printing material is applied to multi-color printing (for example, four-color printing) that requires a plurality of printing cylinders and requires precise registration between the printing cylinders, there is a misregistration. It will occur.
The present invention has been made in view of the above circumstances, and an object thereof is to enable a flexible plate material to be reliably and easily mounted on a plate cylinder.
[0009]
[Means for Solving the Problems]
The object of the present invention is a plate material mounting member attached to a plate tip of the plate material in order to mount a flexible plate material on a plate cylinder provided with a plate tip clamp mechanism having upper teeth and lower teeth. A plurality of mounting pins that are fitted into a plurality of mounting holes provided in the plate tip on the substrate, and the substrate is connected to the plate tip clamping mechanism between the upper teeth and the lower teeth. There line positioning of the plate destination by being in contact with the arranged positioning pins, the upper teeth and the plate material mounting member preventing deformation notches are provided at a location sandwiched the lower teeth of said substrate Can be achieved.
[0010]
Here, examples of the flexible plate material include a support made of a plastic film or paper, which is a material other than metal, and a support in a form in which these are combined. More specifically, examples include a support made of a plastic film such as polyester, polyethylene terephthalate, polyethylene naphthalate, and polycarbonate, and a support made of a composite sheet obtained by laminating a plastic sheet such as polyethylene or polypropylene on paper. The thickness of the support is suitably from 75 to 500 μm, but the optimum thickness varies depending on the type of support used and the printing conditions. Generally, 100 to 400 μm is most preferable.
The positioning pins arranged in the plate tip clamp mechanism are those that protrude toward the upper teeth on the upper surface of the lower teeth of the plate tip clamp mechanism, and those that protrude toward the lower teeth on the lower teeth of the plate tip clamp mechanism And those disposed in the vicinity of the plate tip clamp mechanism by protruding from the plate cylinder.
The material of the substrate of the plate material mounting member is preferably higher in rigidity than the flexible plate material, and examples thereof include metals. The mounting pin may be formed integrally with the substrate or may be retrofitted to the substrate.
[0011]
By using the plate material mounting member as described above, the plate tip of the flexible plate material is protected by the plate material mounting member, and the plate material is deformed so that the plate tip projects from between the positioning pins. Nothing will happen. Therefore, the mounting property of the flexible plate material to the plate cylinder is remarkably improved, the burden on the operator can be reduced, and the misregistration does not occur, and the flexible plate material can be used for multicolor printing or the like. Further, the durability of the plate member mounting member can be improved by the deformation prevention notch.
[0012]
Further, in the above configuration, when the plurality of mounting pins are provided on the substrate along the width direction of the plate material and the distance between the mounting pins is 400 mm or less, the plate tip is inserted between the positioning pins. It is possible to prevent the plate material from being deformed so as to protrude. More preferably, if the distance between the mounting pins is 270 mm or less, the plate material can be more reliably prevented from being deformed. In addition, the space | interval between attachment pins may not be constant if it is in the said range .
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, about the member etc. which were already demonstrated, description is simplified or abbreviate | omitted by attaching | subjecting the same code | symbol or an equivalent code | symbol in a figure.
FIG. 1 shows a plate material mounting member 10 according to a first embodiment of the present invention and a polyester printing plate 80 as a flexible plate material to which the plate material mounting member 10 is attached.
In the plate edge 80a of the printing plate 80, notches 81 whose peripheral edges are substantially U-shaped are formed at locations corresponding to the two positioning pins 64 shown in FIG. The plate tip 80a has a plurality (seven in this case) of mounting holes 82 with a constant interval W1 in the width direction of the printing plate 80 (the direction along the axial direction of the plate cylinder, in the horizontal direction in the figure). It has been drilled. The attachment hole 82 can be formed simultaneously with the notch 81.
[0014]
The plate material mounting member 10 includes a belt-like (rectangular) substrate 11 made of steel, stainless steel, other alloy steel, brass, or the like and having a length longer than the width of the printing plate 80. The board 11 is provided with circular insertion holes 13 at locations corresponding to the two positioning pins 64 shown in FIG. In addition, a plurality of (here, seven) mounting pins 12 protrude from the substrate 11 with a constant interval W1 (here, 120 mm) in the longitudinal direction of the substrate. The plurality of mounting pins 12 are provided on a straight line along the width direction of the printing plate 80, that is, along the longitudinal direction of the plate material mounting member 10. Although the magnitude | size of the attachment pin 12 is not limited, For example, it can be set as about 6 mm in diameter and 4 mm in height. The width in the short direction of the substrate 11 is not limited as long as the width does not reach the top of the plate cylinder when attached to the plate cylinder.
[0015]
2 shows an enlarged view of the vicinity of the notch 81 of the printing plate 80 when the plate material mounting member 10 is attached to the plate tip 80a of the printing plate 80 shown in FIG. As shown in FIG. 2, the plate material mounting member 10 is fixed to the plate 80 by inserting the mounting pins 12 of the plate material mounting member 10 into the mounting holes 82 of the plate 80. Here, a part of the periphery of the circular insertion hole 13 of the plate material mounting member 10 is set to coincide with the curved portion of the substantially U-shaped periphery of the notch 81 of the printing plate 80.
[0016]
When the printing plate 80 is mounted on the plate cylinder 61 shown in FIG. 8, the plate material in a state where the insertion hole 13 of the plate material mounting member 10 is inserted into the positioning pin 64 of the plate tip clamping mechanism 62. The plate tip 80a of the printing plate 80 is fixed to the mounting member 10.
[0017]
FIG. 3 is a sectional view taken along line III-III in FIG. As shown by a two-dot chain line in FIG. 3, when the positioning pin 64 of the plate cylinder is inserted into the insertion hole 13 of the plate material mounting member 10, the inner peripheral surface of the notch 81 of the plate 80 is the plate material. It abuts on the positioning pin 64 together with the inner circumferential surface of the fitting hole 13 of the mounting member 10.
[0018]
By using the plate material mounting member 10 as described above, the plate tip 80 a of the flexible printing plate 80 is protected by the plate material mounting member 10 so that the plate tip 80 a protrudes between the positioning pins 64. Therefore, the printing plate 80 is not deformed. Accordingly, the mounting property of the flexible printing plate 80 to the plate cylinder is remarkably improved, the burden on the operator can be reduced, and the flexible printing plate 80 can be used for multicolor printing or the like without any misregistration. Become.
In addition, since the plate cylinder currently used conventionally can be used as it is, installation cost does not become expensive.
[0019]
FIG. 4 shows a plate material mounting member 30 and a printing plate 80 according to a second embodiment of the present invention. The plate material mounting member 30 includes a substrate 31 having a length equal to or larger than the width of the printing plate 80. The substrate 31 is provided with a notch 33 having a substantially U-shaped periphery at locations corresponding to the two positioning pins 64 of the plate cylinder 61 shown in FIG. In addition, a plurality of (here, seven) mounting pins 32 protrude from the substrate 31 at a constant interval W2 (here, 120 mm) in the longitudinal direction of the substrate.
[0020]
FIG. 5 shows an enlarged view of the vicinity of the notch 81 of the printing plate 80 when the plate material mounting member 30 is attached to the plate tip 80a of the printing plate 80 shown in FIG. As shown in the figure, the plate material mounting member 30 is fixed to the printing plate 80 by inserting the mounting pins 32 of the plate material mounting member 30 into the mounting holes 82 of the printing plate 80. Here, the periphery of the notch 33 of the plate material mounting member 30 is set to coincide with the periphery of the notch 81 of the printing plate 80.
[0021]
By using the plate material mounting member 30 as described above, the plate tip 80 a of the flexible printing plate 80 is protected by the plate material mounting member 30 so that the plate tip 80 a protrudes between the positioning pins 64. Therefore, the printing plate 80 is not deformed.
Further, according to the plate material mounting member 30, when the plate material mounting member 30 is fixed to the plate tip 80 a of the printing plate 80 and then fixed to the plate tip clamp mechanism, the U-shaped notch 33 is used. Since the plate material mounting member 30 can be inserted between the upper teeth and the lower teeth of the plate tip clamping mechanism via the, the positioning operation of the plate tip 80a is further simplified.
[0022]
FIG. 6 shows a plate material mounting member 50 and a printing plate 80 according to a third embodiment of the present invention. The plate material mounting member 50 includes a substrate 51 having a length longer than the width of the printing plate 80. The board 51 is provided with circular insertion holes 53 at locations corresponding to the two positioning pins 64 of the plate cylinder 61 shown in FIG. A plurality of (here, seven) mounting pins 52 protrude from the substrate 51 at a constant interval in the longitudinal direction of the substrate. The substrate 51 includes a plurality of (here, a long side opposite to the side on which the mounting pin 52 is protruded, which is a portion sandwiched between the upper and lower teeth of the plate tip clamping mechanism. Six) deformation prevention notches 54 are provided at equal intervals. Here, the deformation prevention notch 54 has a substantially trapezoidal shape in plan view.
[0023]
In the plate material mounting member 50 as described above, even if the substrate 51 is crushed by sandwiching the substrate 51 by the upper and lower teeth of the plate tip clamping mechanism, the entire plate material mounting member 50 is not deformed. Thus, the shape of the deformation preventing notch 54 is appropriately deformed. That is, the deformation of the entire plate material mounting member 50 is absorbed by the deformation prevention notch 54. Therefore, the durability of the plate material mounting member 50 can be improved.
[0024]
The present invention is not limited to the above-described embodiment, and appropriate modifications and improvements can be made.
[0025]
【The invention's effect】
As described above in detail, according to the plate material mounting member of the present invention, the mounting property of the flexible plate material to the plate cylinder is remarkably improved, the burden on the operator can be reduced, and misregistration does not occur. A flexible printing plate can be used for multicolor printing or the like.
[Brief description of the drawings]
FIG. 1 is a plan view showing a first embodiment of the present invention.
FIG. 2 is an enlarged view of a main part in FIG.
3 is a cross-sectional view taken along line III-III in FIG.
FIG. 4 is a plan view showing a second embodiment of the present invention.
FIG. 5 is an enlarged view of a main part in FIG. 4;
FIG. 6 is a plan view showing a third embodiment of the present invention.
FIG. 7 is a view showing a conventional plate material mounting apparatus.
8 is a view taken in the direction of arrow X in FIG. 7;
[Explanation of symbols]
10, 30, 50 Plate mounting member 11, 31, 51 Substrate 12, 32, 52 Mounting pin 54 Deformation prevention notch 80 Flexible printing plate (flexible printing plate)
80a version

Claims (2)

上歯及び下歯を有する版先クランプ機構を備えた版胴に可撓性の版材を装着するために前記版材の版先に取り付けられる版材装着用部材であって、前記版先に備えられた複数の取付孔に嵌挿される複数の取付ピンを基板上に備えており、前記基板を前記上歯と前記下歯との間で前記版先クランプ機構に配置された位置決めピンに当接されることで前記版先の位置決めを行い、前記基板の前記上歯及び前記下歯に挟持される箇所に変形防止切欠が設けられている版材装着用部材。A plate material mounting member that is attached to a plate tip of the plate material for mounting a flexible plate material on a plate cylinder having a plate tip clamp mechanism having upper teeth and lower teeth, A plurality of mounting pins to be inserted into the plurality of mounting holes provided are provided on the substrate, and the substrate is placed between the upper teeth and the lower teeth against the positioning pins arranged in the plate tip clamping mechanism. There line positioning of the plate destination by being contact, the upper teeth and the plate material mounting member preventing deformation notches are provided at a location sandwiched the lower teeth of the substrate. 前記複数の取付ピンが、前記版材の幅方向に沿って前記基板上に備えられており、取付ピン間の間隔が400mm以下であることを特徴とする請求項1に記載の版材装着用部材。 2. The plate material mounting device according to claim 1, wherein the plurality of mounting pins are provided on the substrate along a width direction of the plate material, and an interval between the mounting pins is 400 mm or less. Element.
JP2000043031A 2000-02-21 2000-02-21 Plate mounting material Expired - Fee Related JP4351781B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2000043031A JP4351781B2 (en) 2000-02-21 2000-02-21 Plate mounting material
EP01103606A EP1127687B1 (en) 2000-02-21 2001-02-21 Plate-mounting member, and method and apparatus for mounting flexible printing plate
DE60144403T DE60144403D1 (en) 2000-02-21 2001-02-21 Fastening element, method and apparatus for mounting flexible printing forms
US09/788,619 US6736065B2 (en) 2000-02-21 2001-02-21 Plate-mounting member, for mounting and positioning flexible printing plate in plate clamping mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000043031A JP4351781B2 (en) 2000-02-21 2000-02-21 Plate mounting material

Publications (2)

Publication Number Publication Date
JP2001232762A JP2001232762A (en) 2001-08-28
JP4351781B2 true JP4351781B2 (en) 2009-10-28

Family

ID=18566014

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000043031A Expired - Fee Related JP4351781B2 (en) 2000-02-21 2000-02-21 Plate mounting material

Country Status (1)

Country Link
JP (1) JP4351781B2 (en)

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