JP2709252B2 - Side leakage prevention device in stencil printing machine - Google Patents
Side leakage prevention device in stencil printing machineInfo
- Publication number
- JP2709252B2 JP2709252B2 JP3816093A JP3816093A JP2709252B2 JP 2709252 B2 JP2709252 B2 JP 2709252B2 JP 3816093 A JP3816093 A JP 3816093A JP 3816093 A JP3816093 A JP 3816093A JP 2709252 B2 JP2709252 B2 JP 2709252B2
- Authority
- JP
- Japan
- Prior art keywords
- plate cylinder
- printing ink
- ink
- inner peripheral
- printing
- 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 - Fee Related
Links
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、孔版印刷機における印
刷装置、より詳しくは、円筒状の版胴の内周面に印刷イ
ンキが供給される印刷装置において、印刷インキが版胴
の各端縁部から漏れ出る、いわゆるインキの脇漏れを防
止する孔版印刷装置における傍漏防止装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing apparatus for a stencil printing machine, and more particularly, to a printing apparatus in which printing ink is supplied to the inner peripheral surface of a cylindrical printing cylinder. The present invention relates to a side leakage prevention device in a stencil printing machine that prevents so-called side leakage of ink leaking from an edge.
【０００２】[0002]
【従来の技術】内周面に印刷インキが供給される印刷イ
ンキ通過性の版胴と、この版胴に内接した印刷インキ供
給ローラとを有する孔版印刷装置は、従来からよく知ら
れている。上記孔版印刷装置においては、印刷インキは
印刷インキ供給ローラの回転によりこのローラと版胴の
内周面との当接領域を経て版胴の内周面へ移る。このよ
うに版胴の内周面へ移った印刷インキの大部分は、版胴
における印刷インキ通過性の多孔性開口部を通過して印
刷に使用されるが、その一部分は上記当接領域において
版胴の端縁と端面部材との継ぎ目、すなわち版胴の端縁
部からはみ出す、いわゆるインキの脇漏れ不具合となっ
て無駄に消費される。また、装置の作動中に、上記端縁
部にはみ出した印刷インキは次第にその量を増やし、版
胴の端縁が完全に密閉されていない限り、遂には版胴外
部に漏れ出してその廻りの機構部を汚損することにな
る。ところが、版胴の端縁を密封することは、版胴の分
解を含めた保守整備性を確保する上から設計上大きな制
約となっている。2. Description of the Related Art A stencil printing machine having a printing ink-passing plate cylinder in which printing ink is supplied to an inner peripheral surface thereof and a printing ink supply roller inscribed in the plate cylinder has been well known. . In the above stencil printing machine, the printing ink is transferred to the inner peripheral surface of the plate cylinder via the contact area between the roller and the inner peripheral surface of the plate cylinder by the rotation of the printing ink supply roller. Most of the printing ink thus transferred to the inner peripheral surface of the plate cylinder is used for printing through the printing ink-permeable porous opening in the plate cylinder, and a part of the printing ink is used in the contact area. This causes a so-called side leakage of ink, which protrudes from the seam between the edge of the plate cylinder and the end face member, that is, the edge of the plate cylinder, and is wastefully consumed. Also, during the operation of the apparatus, the amount of the printing ink that has protruded to the above-mentioned edge gradually increases, and unless the edge of the plate cylinder is completely sealed, the printing ink eventually leaks out of the plate cylinder and the surrounding area. The mechanism will be soiled. However, sealing the edge of the plate cylinder is a major design constraint from the viewpoint of ensuring maintainability including disassembly of the plate cylinder.
【０００３】従来、上記不具合を解消する装置として、
例えば、特公昭５９−５４０３９号公報に示されている
ように、円筒状の版胴の軸線方向中央部へ向けて掻き寄
せるよう版胴の内周面の移動方向に対し傾斜した状態
に、ばね片部により支持されて配置された、版胴の内周
面に弾力的に係合したインキ掻き寄せ片を設けた技術が
提案されている。Conventionally, as an apparatus for solving the above-mentioned problems,
For example, as shown in Japanese Patent Publication No. 59-54039, the spring is tilted with respect to the moving direction of the inner peripheral surface of the plate cylinder so as to be swept toward the center in the axial direction of the cylindrical plate cylinder. There has been proposed a technique in which an ink scraping piece elastically engaged with an inner peripheral surface of a plate cylinder, which is supported and arranged by a piece, is provided.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記イ
ンキ掻き寄せ片を設けた技術は、長期間使用していると
インキ掻き寄せ片と版胴の内周面との摺接によってイン
キ掻き寄せ片の摺接部分が摩耗するため、定期的に保守
整備しなければならない問題がある。また、長期間装置
が停止された場合においては、乾燥し固まった印刷イン
キが障害となってインキ掻き寄せ片で印刷インキを十分
に掻き寄せることができなくなり、その部分に印刷イン
キが堆積して遂にはインキの脇漏れとなる問題がある。
さらに、印刷インキがインキ掻き寄せ片の外側にまわり
込んではみ出すのを確実に防止できない問題がある。However, the technique of providing the above-mentioned ink scraping piece, when used for a long period of time, has a problem in that the ink scraping piece is brought into sliding contact with the inner peripheral surface of the plate cylinder. There is a problem that the sliding part wears out and must be regularly maintained. In addition, when the apparatus is stopped for a long period of time, the dried and hardened printing ink becomes an obstacle, and the printing ink cannot be sufficiently raked by the ink scraping pieces. There is a problem that the ink eventually leaks to the side.
Further, there is a problem that it is impossible to reliably prevent the printing ink from running around the outside of the ink scraping piece.
【０００５】したがって、本発明は、かかる問題点を解
決するために、印刷インキが版胴の各端縁部から漏れ出
るのを長期間にわたり確実に防止できる信頼性の高い孔
版印刷装置における傍漏防止装置を提供することを目的
とする。SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a highly reliable stencil printing apparatus capable of reliably preventing printing ink from leaking from each edge of a plate cylinder for a long period of time. It is an object to provide a prevention device.
【０００６】[0006]
【課題を解決するための手段】本発明は、上記の目的を
達成するために、内周面に印刷インキが供給される印刷
インキ通過性の版胴と、該版胴に内接した印刷インキ供
給ローラとを有する孔版印刷装置において、上記版胴の
端縁と上記印刷インキ供給ローラの端部との間に、上記
内周面のほぼ全周にわたり印刷インキの漏れを防止する
ためのインキ不通過性の堰要素をそれぞれ設けた構成と
している。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a printing ink-passing plate cylinder having a printing ink supplied to an inner peripheral surface thereof, and a printing ink inscribed in the plate cylinder. In a stencil printing machine having a supply roller, an ink for preventing printing ink from leaking over substantially the entire inner peripheral surface is provided between an edge of the plate cylinder and an end of the printing ink supply roller. It has the structure which provided the weir element of passage.
【０００７】[0007]
【作用】本発明によれば、版胴の各端縁と印刷インキ供
給ローラの各端部との間に、版胴の内周面のほぼ全周に
わたり印刷インキの漏れを防止するためのインキ不通過
性の堰要素をそれぞれ設けたので、印刷インキが、その
堰要素で遮られ版胴の各端縁部から漏れ出さない。According to the present invention, an ink for preventing printing ink from leaking over substantially the entire inner circumferential surface of the plate cylinder between each edge of the plate cylinder and each end of the printing ink supply roller. The provision of the respective impervious weir elements prevents the printing ink from being interrupted by the weir elements and leaking from each edge of the plate cylinder.
【０００８】[0008]
【実施例】以下、添付図面を参照して本発明の実施例に
ついて詳述する。図１は、本発明の一実施例の要部断面
を示しており、まず、この要部の構成について説明す
る。Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 shows a cross section of a main part of an embodiment of the present invention. First, a configuration of the main part will be described.
【０００９】図１において、符号１は、版胴を示す。版
胴１は、その内周面に印刷インキが供給される印刷イン
キ通過性の多孔性構造を有するインキ通過領域１ａ（画
像印刷範囲）と、インキ不通過領域１ｂ（非画像印刷範
囲）とからなる周知の構成を有している。版胴１の内部
には、版胴１の内周面に当接してその内周面に印刷イン
キを供給する印刷インキ供給ローラ２と、印刷インキ供
給ローラ２と微小間隙を置いて並行に配置されていて、
印刷インキ供給ローラ２との間に断面楔状のインキ溜り
１１を形成するドクターローラ３と、インキ溜り１１へ
印刷インキ１２を供給する印刷インキ供給管４とを有す
る。ここで、印刷インキ供給ローラ２、ドクターローラ
３及び印刷インキ供給管４が印刷インキ供給装置５を形
成する。版胴１の外周面上の一部には、印刷インキ供給
管４と平行に延在されたクランパを保持するクランパベ
ース部及びメッシュスクリーンを補強保持しているレザ
ー部（共に図示しない）と呼ばれる印刷インキ不通過性
の非画像印刷領域が配設されている。なお、符号４ａは
印刷インキの通り抜けを止める栓部材を、符号４ｂは印
刷インキ供給孔をそれぞれ示す。In FIG. 1, reference numeral 1 denotes a plate cylinder. The plate cylinder 1 includes an ink passage area 1a (image printing area) having a printing ink-permeable porous structure in which printing ink is supplied to an inner peripheral surface thereof, and an ink non-passing area 1b (non-image printing area). It has a known configuration. Inside the plate cylinder 1, a printing ink supply roller 2 that contacts the inner peripheral surface of the plate cylinder 1 and supplies printing ink to the inner peripheral surface, and is arranged in parallel with the printing ink supply roller 2 with a small gap. Have been
It has a doctor roller 3 that forms a wedge-shaped ink reservoir 11 between itself and the printing ink supply roller 2, and a printing ink supply pipe 4 that supplies printing ink 12 to the ink reservoir 11. Here, the printing ink supply roller 2, the doctor roller 3, and the printing ink supply tube 4 form a printing ink supply device 5. A portion on the outer peripheral surface of the plate cylinder 1 is called a clamper base portion for holding a clamper extending in parallel with the printing ink supply pipe 4 and a razor portion (both not shown) for reinforcing and holding the mesh screen. A non-image printing area is provided that is impermeable to printing ink. Reference numeral 4a denotes a plug member for stopping the passage of the printing ink, and reference numeral 4b denotes a printing ink supply hole.
【００１０】印刷インキ供給ローラ４に対向する版胴１
の外周面の下方近傍には、図示しない印刷用紙を介して
版胴１の外周面に圧接する印刷位置と、版胴１の外周面
から離間する非印刷位置（版胴１の外周面が、クランパ
ベース部及びレザー部（共に図示しない）の輪郭外周面
から離間した位置をいう）とを選択的に占めるプレスロ
ーラ６が配設されている。Plate cylinder 1 facing printing ink supply roller 4
Near the outer peripheral surface of the plate cylinder 1 through a printing paper (not shown), and a non-printing position separated from the outer peripheral surface of the plate cylinder 1 (the outer peripheral surface of the plate cylinder 1 A press roller 6 that selectively occupies the clamper base portion and the razor portion (both not shown) at a position separated from the outer peripheral surface of the contour portion is disposed.
【００１１】版胴１は、印刷インキ供給管４と平行な方
向に延在したステンレスでできた多孔性の円筒体からな
り、図示しないフレームに取り付けられた印刷インキ供
給管４に回転可能に支持されている周知のものである。
版胴１は、その両端部が円板状の一対のフランジ７ａを
有する端板７の外周縁部８に巻き付けられ、所定箇所に
おいて図示しないねじによりそれぞれ取り付けられてい
る。印刷インキ供給ローラ２及びドクターローラ３の各
端部の軸は、図示を省略した各軸受を介して、印刷イン
キ供給管４により支持され垂下された支持板９Ｌ，９Ｒ
に回転可能にそれぞれ取り付けられている。支持板９
Ｌ，９Ｒの下端部には、版胴１の内周面と極くわずかな
隙間を持って合成樹脂製の仕切り板１０Ｌ，１０Ｒが固
定されている。なお、印刷インキ供給ローラ２を駆動す
るギヤ等は、説明の簡明化を図るためその図示及び説明
を省略する。The plate cylinder 1 is made of a stainless steel porous cylinder extending in a direction parallel to the printing ink supply pipe 4, and is rotatably supported by the printing ink supply pipe 4 attached to a frame (not shown). It is a well-known thing.
The plate cylinder 1 has both ends wound around an outer peripheral edge 8 of an end plate 7 having a pair of disk-shaped flanges 7a, and is attached at predetermined locations by screws (not shown). The shafts at the respective ends of the printing ink supply roller 2 and the doctor roller 3 are supported by the printing ink supply pipe 4 via the bearings (not shown) and are suspended from the support plates 9L and 9R.
Each is rotatably attached to. Support plate 9
At the lower ends of L and 9R, partition plates 10L and 10R made of synthetic resin are fixed with a very small gap from the inner peripheral surface of plate cylinder 1. Gears and the like for driving the printing ink supply roller 2 are not shown or described for simplicity of description.
【００１２】図１に示すように、版胴１の端縁と印刷イ
ンキ供給ローラ２の端部との間には、版胴１の内周面の
ほぼ全周にわたり印刷インキ１２の漏れを防止するため
のインキ不通過性の堰要素１３がそれぞれ図示しない接
着剤により接着されている。堰要素１３は、例えばゴム
でできている。ここで、インキ不通過性とは、以下説明
する各堰要素（堰要素１３を含む）及びこれを版胴１の
端縁部に取り付けるための部材を含めて、後述する漏れ
インキ１２ａとの接触によって長期間にわたり劣化しな
い、すなわち、インキ不通過性能の所定の信頼度（例え
ば、数百万枚の印刷枚数に耐えうること）を満足するこ
とをいう。また、版胴１の内周面のほぼ全周とは、クラ
ンパベース部及びレザー部（共に図示しない）の非画像
印刷領域を避けた版胴１の内周面範囲をいう。As shown in FIG. 1, between the edge of the plate cylinder 1 and the end of the printing ink supply roller 2, the printing ink 12 is prevented from leaking over substantially the entire inner peripheral surface of the plate cylinder 1. The ink impervious weir elements 13 are bonded by an adhesive (not shown). The weir element 13 is made of, for example, rubber. Here, the ink impermeability refers to the contact with the later-described leaked ink 12a, including each weir element (including the weir element 13) described below and a member for attaching this to the edge of the plate cylinder 1. Means that the ink does not deteriorate for a long period of time, that is, satisfying a predetermined reliability of the ink non-passing performance (for example, the ability to withstand several million printed sheets). The substantially entire circumference of the inner peripheral surface of the plate cylinder 1 refers to an inner peripheral surface area of the plate cylinder 1 avoiding a non-image printing area of a clamper base portion and a laser portion (both not shown).
【００１３】以下、図２乃至図６の各変形実施例につい
て説明する。Hereinafter, each modified embodiment of FIGS. 2 to 6 will be described.
【００１４】図２（ａ），（ｂ）において、堰要素１３
Ａは、インキ不通過性の、断面矩形状の発泡ゴムででき
ていて、版胴１の端縁と印刷インキ供給ローラ２の端部
との間の、版胴１の内周端縁近傍においてそのほぼ全周
にわたり両面接着テープ１４でそれぞれ接着されてい
る。2 (a) and 2 (b), weir elements 13
A is made of an ink-impermeable, rubber foam having a rectangular cross section in the vicinity of the inner peripheral edge of the plate cylinder 1 between the edge of the plate cylinder 1 and the end of the printing ink supply roller 2. Almost all around it is bonded with a double-sided adhesive tape 14, respectively.
【００１５】図３（ａ），（ｂ）において、堰要素１３
Ｂは、インキ不通過性の、断面矩形状のスポンジででき
ていて、各端板７の内側周縁部においてそのほぼ全周に
わたり両面接着テープ１４で接着されていて、かつ、そ
の堰要素１３Ｂの一片が版胴１の内周端縁部に密着させ
てそれぞれ取り付けられている。3 (a) and 3 (b), weir elements 13
B is made of an ink-impermeable sponge having a rectangular cross section, and is adhered to the inner peripheral portion of each end plate 7 over substantially the entire periphery thereof with a double-sided adhesive tape 14 and has a weir element 13B. One piece is attached in close contact with the inner peripheral edge of the plate cylinder 1.
【００１６】図４（ａ），（ｂ）において、堰要素１３
Ｃは、インキ不通過性の、断面凹状の合成ゴムでできて
いて、版胴１の端縁と印刷インキ供給ローラ２の端部と
の間の、版胴１の内周端縁近傍においてそのほぼ全周に
わたり両面接着テープ１４でそれぞれ接着されている。4 (a) and 4 (b), weir elements 13
C is made of synthetic rubber that is impermeable to ink and concave in cross section, and is located between the edge of the plate cylinder 1 and the end of the printing ink supply roller 2 near the inner peripheral edge of the plate cylinder 1. Almost all the circumference is adhered by the double-sided adhesive tape 14, respectively.
【００１７】図５（ａ），（ｂ）において、堰要素１３
Ｄは、インキ不通過性の、略直角に折り曲げられた硬質
のマイラーでできていて、その一曲片は各端板７の外周
面と版胴１の端縁部に両面接着テープ１４を介して挟持
され、またその他曲片は端板７の内側周縁部においてそ
れぞれそのほぼ全周にわたり両面接着テープ１４で接着
されている。5 (a) and 5 (b), weir elements 13
D is made of a hard mylar which is impermeable to ink and bent at a substantially right angle. One piece of the piece is attached to the outer peripheral surface of each end plate 7 and the edge of the plate cylinder 1 via a double-sided adhesive tape 14. The other bent pieces are adhered to the inner peripheral edge of the end plate 7 over the substantially entire periphery thereof with a double-sided adhesive tape 14.
【００１８】図６（ａ），（ｂ）において、堰要素１３
Ｅは、インキ不通過領域１ｂにおける版胴１の端縁近傍
がＵ字状に折り曲げられ、このＵ字状の凸状部が、版胴
１の端縁と印刷インキ供給ローラ２の端部との間の、版
胴１の内周端縁近傍においてそのほぼ全周にわたり一体
形成されている。6 (a) and 6 (b), weir elements 13
E is that the vicinity of the edge of the plate cylinder 1 in the ink non-passing area 1b is bent into a U-shape, and the U-shaped convex portion is formed between the edge of the plate cylinder 1 and the end of the printing ink supply roller 2. In the vicinity of the inner peripheral edge of the plate cylinder 1, it is integrally formed over substantially the entire periphery thereof.
【００１９】上記実施例における各堰要素１３乃至１３
Ｅは、何れにおいても版胴１の求心側にその凸状部が位
置するようにそれぞれ設けられている。各堰要素１３乃
至１３Ｅの凸状部の高さの設定は、版胴の大きさ、回転
速度及びその他の設計仕様を勘案して決められる単なる
設計的事項であり、この凸状部の高さは、図１で示す漏
れインキ１２ａが溢れて版胴１の端縁部１ｅに流出しな
い高さに適切に設定されている。Each of the weir elements 13 to 13 in the above embodiment
In each case, E is provided such that its convex portion is located on the centripetal side of the plate cylinder 1. The setting of the height of the convex portion of each of the weir elements 13 to 13E is a mere design matter determined in consideration of the size of the plate cylinder, the rotational speed, and other design specifications. Is appropriately set to a height at which the leaked ink 12a shown in FIG. 1 does not overflow and flow to the edge 1e of the plate cylinder 1.
【００２０】次にこれらの実施例の作用について説明す
る。Next, the operation of these embodiments will be described.
【００２１】図１に示すように、版胴１のインキ通過領
域１ａに供給された印刷インキの一部分は、仕切り板１
０Ｌ，１０Ｒを設けてある部位においては版胴１の内周
面とのわずかな隙間を通って漏れインキ１２ａとなり、
仕切り板１０Ｌ，１０Ｒが設けられていない部位（図１
においては版胴１の内周端縁部近傍の部位）においても
微量ではあるが、漏れインキ１２ａとなり、遂には版胴
１の端縁部１ｅからのいわゆるインキの脇漏れとなる
が、本実施例においては、何れの場合においても漏れイ
ンキ１２ａが、各堰要素１３，１３Ａ，１３Ｂ，１３
Ｃ，１３Ｅの凸状部若しくは堰要素１３Ｄを用いた密閉
構造により遮られ版胴の各端縁部１ｅから漏れ出さな
い。As shown in FIG. 1, a part of the printing ink supplied to the ink passage area 1a of the plate cylinder 1 is
In the portion where 0L and 10R are provided, the leaked ink 12a passes through a slight gap with the inner peripheral surface of the plate cylinder 1,
A portion where the partition plates 10L and 10R are not provided (FIG. 1)
(A portion near the inner peripheral edge of the plate cylinder 1), the amount of the leaked ink 12a is small, but a so-called side leakage of the ink from the edge 1e of the plate cylinder 1 finally occurs. In the example, in each case, the leaked ink 12a is applied to each of the weir elements 13, 13A, 13B, 13B.
It is shielded by the hermetic structure using the convex portions of C and 13E or the weir element 13D, and does not leak out from each edge 1e of the plate cylinder.
【００２２】なお、堰要素１３Ｃの凹状の両側の突起部
は、２重、３重等幾重に連結されたものであっても良
く、この凸状部が増えるほどインキの脇漏れ防止性能が
向上する。The protrusions on both sides of the concave shape of the weir element 13C may be connected in multiple layers such as double, triple, etc., and the greater the number of the convex portions, the better the ink leakage prevention performance. I do.
【００２３】本実施例においては、各堰要素１３乃至１
３Ｅが版胴１の内周面のほぼ全周にわたり設けられてい
るが、これに限らず、好ましくは版胴１の内周面におい
て全周にわたり設けられていても良い。In this embodiment, each of the weir elements 13 to 1
Although 3E is provided over substantially the entire inner peripheral surface of the plate cylinder 1, the present invention is not limited to this, and it is preferable that the 3E be provided over the entire inner peripheral surface of the plate cylinder 1.
【００２４】また、本実施例においては、各堰要素１３
乃至１３Ｅの材料がそれぞれゴム、発泡ゴム、スポン
ジ、合成ゴム、硬質マイラー及びステンレスでできてい
るが、これに限らず、各堰要素１３乃至１３Ｅは各堰要
素１３乃至１３Ｄについての何れの材料を選択して用い
ても良い。また、各堰要素１３乃至１３Ｄを版胴１の内
周端縁部に設ける手段は、接着剤や両面接着テープに限
らず、他の取り付け手段によっても良い。In this embodiment, each weir element 13
To 13E are made of rubber, foamed rubber, sponge, synthetic rubber, hard mylar, and stainless steel, respectively. However, the material is not limited thereto, and each of the weir elements 13 to 13E may be any material for each of the weir elements 13 to 13D. You may select and use. The means for providing the weir elements 13 to 13D on the inner peripheral edge of the plate cylinder 1 is not limited to an adhesive or a double-sided adhesive tape, but may be other attaching means.
【００２５】堰要素は、上記実施例に限らず、インキ不
通過性の凸部の先端に版胴の高速回転時にインキ通過領
域にとび散るインキを受けて戻すためのかえしを設けて
も良い。The weir element is not limited to the above embodiment, and a barb may be provided at the tip of the ink-impermeable convex portion for receiving and returning the ink scattered in the ink passage area when the plate cylinder rotates at a high speed.
【００２６】堰要素は、上記実施例に限らず、合成樹脂
製の凸部或いは液状で凝固する性質を有する高分子化合
物で凸部を形成しても良い。The weir element is not limited to the above embodiment, but may be formed of a synthetic resin convex portion or a convex portion made of a polymer compound having a property of solidifying in a liquid state.
【００２７】すなわち、本発明は、版胴の端縁と印刷イ
ンキ供給ローラの端部との間に、内周面のほぼ全周にわ
たり印刷インキの漏れを防止するためのインキ不通過性
の堰要素をそれぞれ設けてあれば良い。That is, the present invention provides an ink-impermeable weir between the edge of a plate cylinder and the end of a printing ink supply roller for preventing the leakage of printing ink over substantially the entire inner peripheral surface. What is necessary is just to provide each element.
【００２８】[0028]
【発明の効果】以上述べたように、本発明によれば、版
胴の各端縁と印刷インキ供給ローラの各端部との間に、
版胴の内周面のほぼ全周にわたり印刷インキの漏れを防
止するためのインキ不通過性の堰要素をそれぞれ設けた
ことにより、印刷インキがその堰要素で遮られ版胴の各
端縁部から漏れ出さないので、印刷インキが版胴の各端
縁部から漏れ出るのを長期間にわたり確実に防止できる
信頼性の高い孔版印刷装置における傍漏防止装置を提供
することができる。As described above, according to the present invention, between each edge of the plate cylinder and each end of the printing ink supply roller,
By providing ink impervious weir elements for preventing the leakage of printing ink over substantially the entire circumference of the inner peripheral surface of the plate cylinder, the printing ink is blocked by the weir elements and each edge of the plate cylinder is provided. As a result, it is possible to provide a highly reliable stencil printer capable of reliably preventing the printing ink from leaking from each edge of the plate cylinder for a long period of time.
【図１】本発明の一実施例が適用された孔版印刷装置に
おける傍漏防止装置の要部を示す断面図である。FIG. 1 is a sectional view showing a main part of a side leakage prevention device in a stencil printing machine to which an embodiment of the present invention is applied.
【図２】図２（ａ），（ｂ）は本発明の変形実施例をそ
れぞれ示す要部の斜視図及び断面図である。FIGS. 2 (a) and 2 (b) are a perspective view and a sectional view, respectively, of a main part showing a modified embodiment of the present invention.
【図３】図３（ａ），（ｂ）は本発明の変形実施例をそ
れぞれ示す要部の斜視図及び断面図である。FIGS. 3 (a) and 3 (b) are a perspective view and a sectional view, respectively, of a main part showing a modified embodiment of the present invention.
【図４】図４（ａ），（ｂ）は本発明の変形実施例をそ
れぞれ示す要部の斜視図及び断面図である。FIGS. 4 (a) and 4 (b) are a perspective view and a sectional view, respectively, of a main portion showing a modified embodiment of the present invention.
【図５】図５（ａ），（ｂ）は本発明の変形実施例をそ
れぞれ示す要部の斜視図及び断面図である。FIGS. 5 (a) and 5 (b) are a perspective view and a sectional view, respectively, of a main part showing a modified embodiment of the present invention.
【図６】図６（ａ），（ｂ）は本発明の変形実施例をそ
れぞれ示す要部の斜視図及び断面図である。FIGS. 6 (a) and 6 (b) are a perspective view and a sectional view, respectively, of a main part showing a modified embodiment of the present invention.
【符号の説明】 １ 版胴 １ａ 版胴におけるインキ通過領域 １ｂ 版胴におけるインキ不通過領域 １ｅ インキの脇漏れを生じる端縁部 ２ 印刷インキ供給ローラ ７ 端板 １２ 印刷インキ １２ａ 漏れインキ １３，１３Ａ，１３Ｂ，１３Ｃ，１３Ｄ，１３Ｅ 堰要
素 １４ 両面接着テープDESCRIPTION OF SYMBOLS 1 Plate cylinder 1a Ink passage area in plate cylinder 1b Ink non-passage area in plate cylinder 1e Edge where ink leaks sideways 2 Printing ink supply roller 7 End plate 12 Printing ink 12a Leaked ink 13, 13A , 13B, 13C, 13D, 13E Weir element 14 Double-sided adhesive tape
Claims (1)
キ通過性の版胴と、該版胴に内接した印刷インキ供給ロ
ーラとを有する孔版印刷装置において、 上記版胴の端縁と上記印刷インキ供給ローラの端部との
間に、上記内周面のほぼ全周にわたり印刷インキの漏れ
を防止するためのインキ不通過性の堰要素をそれぞれ設
けたことを特徴とする孔版印刷装置における傍漏防止装
置。1. A stencil printing machine having a printing ink-passing plate cylinder having a printing ink supplied to an inner peripheral surface thereof, and a printing ink supply roller inscribed in the plate cylinder. A stencil printing machine, wherein an ink-impermeable weir element for preventing printing ink from leaking over substantially the entire circumference of the inner peripheral surface is provided between the printing ink supply roller and an end of the printing ink supply roller. Device for preventing side leakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3816093A JP2709252B2 (en) | 1993-02-26 | 1993-02-26 | Side leakage prevention device in stencil printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3816093A JP2709252B2 (en) | 1993-02-26 | 1993-02-26 | Side leakage prevention device in stencil printing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06247026A JPH06247026A (en) | 1994-09-06 |
| JP2709252B2 true JP2709252B2 (en) | 1998-02-04 |
Family
ID=12517660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3816093A Expired - Fee Related JP2709252B2 (en) | 1993-02-26 | 1993-02-26 | Side leakage prevention device in stencil printing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2709252B2 (en) |
-
1993
- 1993-02-26 JP JP3816093A patent/JP2709252B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06247026A (en) | 1994-09-06 |
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