JPS5954039B2 - printing device - Google Patents
printing deviceInfo
- Publication number
- JPS5954039B2 JPS5954039B2 JP14169079A JP14169079A JPS5954039B2 JP S5954039 B2 JPS5954039 B2 JP S5954039B2 JP 14169079 A JP14169079 A JP 14169079A JP 14169079 A JP14169079 A JP 14169079A JP S5954039 B2 JPS5954039 B2 JP S5954039B2
- Authority
- JP
- Japan
- Prior art keywords
- plate cylinder
- cylindrical plate
- printing ink
- circumferential surface
- 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
Links
Landscapes
- Screen Printers (AREA)
Description
【発明の詳細な説明】
本発明は、印刷装置に係り、特に円筒状版胴の内周部に
印刷インキを供給される単胴式印刷装置に於いて、印刷
インキが円筒状版胴の側縁部より外部に漏れ出ることを
防止する構造に係る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a printing device, and particularly in a single-cylinder printing device in which printing ink is supplied to the inner circumference of a cylindrical plate cylinder, the printing ink is supplied to the side of the cylindrical plate cylinder. It relates to a structure that prevents leakage from the edges to the outside.
孔版印刷装置や捺染印刷装置として、内周部に印刷イン
キを供給され自身の中心軸線の周りに回転するインキ通
過性の円筒状版胴と、外周面にて前記円筒状版胴の内周
面に接触すべ＜配置され自身の中心軸線の周りに回転す
るローラとを有している印刷装置は従来から知られてい
る。上述の如き印刷装置に於いては、印刷インキはロー
ラの回転により該ローラと円筒状版胴との接触領域まで
もたらされ、ここで前記円筒状版胴の内周面に移る。As a stencil printing device or a textile printing device, there is an ink-permeable cylindrical printing cylinder that is supplied with printing ink on its inner circumference and rotates around its central axis, and an inner circumferential surface of the cylindrical printing cylinder on its outer circumferential surface. Printing devices are known from the prior art having a roller that is arranged in contact with a roller and rotates about its central axis. In printing devices such as those described above, the printing ink is brought by the rotation of the roller to the contact area between the roller and the cylindrical form cylinder, where it is transferred to the inner peripheral surface of said cylindrical form cylinder.
上述の如く、版胴の内周面に移つた印刷インキの大部分
は円筒状版胴を通過して印刷に用いられるが、一部分は
前記接触領域にてそれの側縁にはみ出し無駄に消費され
る。また、上述の如くはみ出したインキは装置が長期間
停止さ’れると乾燥し、円筒状版胴の内周面の平滑性を
阻害するおそれがある。また装置の作動中、前記側縁部
にはみ出した印刷インキは次第にその量を増し、円筒状
版胴の側面が完全に密封されていない限り、遂には版胴
外部に漏れ出して他の機構部を汚損することになる。し
かし、版胴の側面を密封することは設計上大きな制約と
なる。本発明は従来の印刷装置に於ける上述の如き不具
合に鑑み、はみ出した印刷インキを回収し、印刷インキ
の無駄な消費を防ぎ、またその印刷インＪキが版胴の外
部に漏れ出ないように改良された印刷装置を堤供するこ
とを目的としている。As mentioned above, most of the printing ink transferred to the inner circumferential surface of the plate cylinder passes through the cylindrical plate cylinder and is used for printing, but a portion of it protrudes to the side edges of the cylinder in the contact area and is wasted. Ru. Further, as described above, the overflowing ink dries when the apparatus is stopped for a long period of time, and there is a risk that the smoothness of the inner circumferential surface of the cylindrical plate cylinder may be impaired. Also, during operation of the device, the amount of printing ink that protrudes from the side edges increases gradually, and unless the side surfaces of the cylindrical plate cylinder are completely sealed, they will eventually leak out of the plate cylinder and be used in other mechanical parts. This will result in contamination. However, sealing the sides of the plate cylinder poses a major design constraint. In view of the above-mentioned problems in conventional printing devices, the present invention collects the overflowing printing ink, prevents unnecessary consumption of printing ink, and prevents the printing ink from leaking outside the plate cylinder. The purpose is to provide improved printing equipment to
かかる目的は、本発明によれば、内周部に印刷インキを
供給され自身の中心軸線の周りに回転するインキ通過性
の円筒状版胴と、外周面にて前記Ｊ円筒状版胴の内周面
に接触すべく配置され自身の中心軸線の周りに回転する
ローラとを有している印刷装置に於て、前記円筒状版胴
の側縁部に於けるその内周面に弾力的に係合したインキ
掻き寄せ片を有し、前記インキ掻き寄せ片はそれに接触
しつつ転動する前記円筒状版胴の内周面に付着した印刷
インキを前記円筒状版胴の軸線方向中央部へ向けて掻き
寄せるよう前記円筒状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且該ば
ね片部の弾性により前記円筒状版胴の内周面に弾力的に
押付けられていることを特徴とする印刷装置によつて達
成される。According to the present invention, an ink-permeable cylindrical plate cylinder whose inner circumferential portion is supplied with printing ink and rotates around its central axis, and an outer circumferential surface of which the inner circumferential plate cylinder of the J cylindrical plate cylinder is In a printing device having a roller arranged to be in contact with the circumferential surface and rotating around its own central axis, a roller is elastically attached to the inner circumferential surface at the side edge of the cylindrical plate cylinder. The ink scraping piece has an engaged ink scraping piece, and the ink scraping piece rolls while contacting the ink scraping piece, and removes the printing ink attached to the inner circumferential surface of the cylindrical plate cylinder toward the axially central part of the cylindrical plate cylinder. The inner circumferential surface of the cylindrical plate cylinder is supported by a spring piece so as to be inclined with respect to the moving direction of the inner circumferential surface of the cylindrical plate cylinder, and the elasticity of the spring piece allows the inner circumferential surface of the cylindrical plate cylinder to This is achieved by a printing device characterized in that it is elastically pressed.
以下に添付の図を用いて本発明を実施例について詳細に
説明する。第１図は本発明による印刷装置の一つの実施
例をその要部について示す側面図、第２図はそれの概略
平面図、第３図は第２図の線１１１−１１１に沿う拡大
断面図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a side view showing essential parts of one embodiment of a printing device according to the present invention, FIG. 2 is a schematic plan view thereof, and FIG. 3 is an enlarged sectional view taken along line 111-111 in FIG. 2. It is.
印刷装置は所定の幅を有する円筒状版胴１を有している
。円筒状版胴１は印刷インキの通過を許す多孔性構造を
有している。前記円筒状版胴１はそれの中心軸２の周り
を第１図で見て反時叶廻り方向に図示されていない電動
機によつて回転駆動されるようになつている。また前，
記円筒状版胴１の外周面には孔版原紙３が装着されてい
る。孔版原紙３は印刷インキの粘性によつて前記円筒状
版胴１の外周面に密着し、保持され、前記円筒状版胴１
と一体的に回転する。また前記中心軸２は前記円筒状版
胴１内にて支，持体４を吊下げ式に支持している。前記
支持体４は軸５によつてレバー６の一端を回動自在に支
持しており、またレバー６はその中間部にて軸７により
印刷インキ供給ローラ８を回転自在に支持している。印
刷インキ供給ローラ８は外周面にて前．記円筒状版胴１
の内周面に接触し、前記円筒状版胴１の回転により従動
的に前記軸７の周りに第１図で見て反時計廻り方向に回
転するようになつている。また前記レバー６はその先端
部にて前記支持体４にねじ９によつて取付けられた偏心
カム１０に係合しており、前記偏心カム］０の回動取付
け位置が調整されることにより前記円筒状版胴１と印刷
インキ供給ローラ８との接触圧が調整されるようになつ
ている。前記印刷インキ供給ローラ８の軸線方向寸法は
（円筒状版胴１のそれより幾分小さく、第２図によく示
されている如く、円筒状版胴１は前記印刷インキ供給ロ
ーラ８の両側部に実際の印刷を行なわない余剰部１″を
含んでいる。The printing device has a cylindrical plate cylinder 1 having a predetermined width. The cylindrical plate cylinder 1 has a porous structure that allows printing ink to pass through. The cylindrical plate cylinder 1 is rotated around its central axis 2 in a counterclockwise direction when viewed in FIG. 1 by an electric motor (not shown). Also before,
A stencil paper 3 is attached to the outer peripheral surface of the cylindrical plate cylinder 1. The stencil paper 3 is held in close contact with the outer peripheral surface of the cylindrical plate cylinder 1 by the viscosity of the printing ink, and
rotates integrally with. Further, the central shaft 2 supports a supporting body 4 in a suspended manner within the cylindrical plate cylinder 1. The support body 4 rotatably supports one end of a lever 6 through a shaft 5, and the lever 6 rotatably supports a printing ink supply roller 8 through a shaft 7 at its intermediate portion. The printing ink supply roller 8 is located at the front on the outer peripheral surface. Cylindrical plate cylinder 1
The plate cylinder 1 contacts the inner circumferential surface of the plate cylinder 1, and rotates counterclockwise as viewed in FIG. 1 around the shaft 7 as a result of the rotation of the cylindrical plate cylinder 1. Further, the tip of the lever 6 engages with an eccentric cam 10 attached to the support body 4 with a screw 9, and by adjusting the rotational mounting position of the eccentric cam 0, The contact pressure between the cylindrical plate cylinder 1 and the printing ink supply roller 8 is adjusted. The axial dimension of the printing ink supply roller 8 is (slightly smaller than that of the cylindrical plate cylinder 1, and as shown well in FIG. includes a surplus portion 1'' which is not actually printed.
また前記支持体４は長孔１１にてスタイージ要素１２の
両端部に設けられた取付ピン１３を支持している。The support body 4 also supports mounting pins 13 provided at both ends of the styge element 12 through elongated holes 11 .
スクイージ要素１２は丸棒部材によつて構成されている
。前記スクイージ要素１２は前記取付ピン１３を貫通し
前記軸７にねじ止めされた頭付のねじ棒１４と前記取付
ピン１３と前記取付ピン１３と前記軸７との間に設けら
れた圧縮コイルばね１５により前記印刷インキ供給ロー
ラ８に対して位置決めされ、外周面にて前記印刷インキ
供給ローラ８の外周面に所定の小さい間隙を置いて配置
されている。前記スタイージ要素１２の図にて右方には
印刷インキ供給パイプ１６が設けられており、この印刷
インキ供給パイプ１６より供給される印刷インキは前記
印刷インキ供給ローラ８の回転に伴いこれの外周面と前
記スクイージ要素１２の外周面とによつて郭定される楔
状の空間にインキ溜りを形成するようにつている。また
前記支持体４はばね片部１８を含む取付部材１７によつ
てインキ掻き寄せ片１９を支持している。インキ掻き寄
せ片１９は、第１図によく示されている如く、前記円筒
状版胴１と前記印刷インキ供給ローラ８との接触領域よ
り前記円筒状版胴１の回転方向進み側に、且つ前記印刷
インキ供給ローラ８に接近した位置にあつて、また、第
２図に示されている如く、円筒状版胴１の側縁部にてそ
の移動方向に対し傾斜して配置され、前記ばね片部１８
のばね力によつて前記円筒状版胴１の両側縁部に於ける
その内周面に弾力的に接触している。また前記インキ掻
き寄せ片１９はその一端に於いては前記円筒状版胴１の
前記余剰部１″に於けるその内周面に接しているが他端
に於いては前記余剰部１″より中央部側に位置している
。また前記円筒状版胴１の外周部には該円筒状版胴１を
隔てて前記印刷インキ供給ローラ８に対向するプレスロ
ーラ２０が軸２１によつて回転可能に設けられている。
前記インキ溜りの印刷インキは、前記円筒状版胴１の第
１図で見て反時計廻り方向の回転に伴い前記印刷インキ
供給ローラ８が第１図で見て反時計廻り方向に回動する
ことにより前記印刷インキ供給ローラ８と前記スクイー
ジ要素１２との間の間隙を経て前記印刷インキ供給ロー
ラ８の外周面に一様に塗布されたインキ層となつて前記
円筒状版胴１と前記印刷インキ供給ローラ８との接触領
域に移送され、その接触領域にて前記円筒状版胴１の内
周面に付着し、更に印刷インキ供給ローラ８によつて押
圧されて前記円筒状版胴１の外周面に向けて押しやられ
る。The squeegee element 12 is constituted by a round bar member. The squeegee element 12 includes a threaded rod 14 with a head passing through the mounting pin 13 and screwed to the shaft 7, the mounting pin 13, and a compression coil spring provided between the mounting pin 13 and the shaft 7. It is positioned with respect to the printing ink supply roller 8 by 15, and is arranged with a predetermined small gap between the outer circumferential surface of the printing ink supply roller 8 and the outer circumferential surface of the printing ink supply roller 8. A printing ink supply pipe 16 is provided on the right side of the styge element 12 in the drawing, and the printing ink supplied from this printing ink supply pipe 16 is applied to the outer peripheral surface of the printing ink supply roller 8 as it rotates. and the outer peripheral surface of the squeegee element 12 to form an ink reservoir in a wedge-shaped space. Further, the support body 4 supports an ink scraping piece 19 by a mounting member 17 including a spring piece 18. As clearly shown in FIG. 1, the ink scraping piece 19 is located on the advancing side in the rotational direction of the cylindrical plate cylinder 1 from the contact area between the cylindrical plate cylinder 1 and the printing ink supply roller 8, and The spring is located close to the printing ink supply roller 8 and, as shown in FIG. Piece 18
Due to the spring force of the plate cylinder 1, it is elastically contacted with the inner circumferential surface of the cylindrical plate cylinder 1 at both side edges thereof. Further, the ink scraping piece 19 has one end in contact with the inner circumferential surface of the surplus portion 1'' of the cylindrical plate cylinder 1, but the other end is in contact with the inner circumferential surface of the surplus portion 1'' of the cylindrical plate cylinder 1. It is located towards the center. Further, a press roller 20 is rotatably provided on the outer periphery of the cylindrical plate cylinder 1 by a shaft 21, and faces the printing ink supply roller 8 across the cylindrical plate cylinder 1.
As the printing ink in the ink reservoir rotates in the counterclockwise direction as seen in FIG. 1 of the cylindrical plate cylinder 1, the printing ink supply roller 8 rotates in the counterclockwise direction as seen in FIG. As a result, an ink layer is uniformly applied to the outer peripheral surface of the printing ink supply roller 8 through the gap between the printing ink supply roller 8 and the squeegee element 12, and the ink layer is uniformly applied to the outer circumferential surface of the printing ink supply roller 8, and the ink layer is uniformly applied to the outer peripheral surface of the printing ink supply roller 8 through the gap between the printing ink supply roller 8 and the squeegee element 12. The printing ink is transferred to the contact area with the ink supply roller 8, adheres to the inner peripheral surface of the cylindrical plate cylinder 1 in the contact area, and is further pressed by the printing ink supply roller 8 to form the cylindrical plate cylinder 1. It is pushed towards the outer surface.
このとき印刷インキの一部は前記印刷インキ供給ローラ
８の端部より前記．円筒状版胴１の前記余剰部１″に於
ける内周面にはみ出す。このはみ出した印刷インキは円
筒状版胴１の移動に伴い掻き寄せ片１９に衝突し、これ
によつて前記円筒状版胴１の中央部へ向けて掻き寄せら
れる。このように掻き寄せ片］９によつて，掻き寄せら
れた印刷インキは、掻き寄せ片１９の一方の側に溜り、
その一部は前記印刷インキ供給口ーラ８の外周面に付着
して持ち去られて前記インキ溜りに送られ、また他の一
部は前記余剰部１″より中央側の円筒状版胴１の内周面
に向けて流れ出し、その印刷インキは円筒状版胴１がほ
ぼ一回転することにより再び前記円筒状版胴１と印刷イ
ンキ供給ローラ８との接触領域に送られ、印刷のために
有効に消費される。以上の如く本発明によれば掻き寄せ
片を設けるという簡単な構造の追加により印刷インキの
無駄な消費が抑制され、また印刷インキが円筒状版胴の
外部に漏れ出すことを防止できる。At this time, a portion of the printing ink is supplied from the end of the printing ink supply roller 8 to the end of the printing ink supply roller 8. The overflowing printing ink protrudes onto the inner peripheral surface of the surplus portion 1'' of the cylindrical plate cylinder 1. As the cylindrical plate cylinder 1 moves, this protruding printing ink collides with the scraping piece 19, thereby causing the cylindrical plate cylinder 1 to The printing ink is scraped toward the center of the plate cylinder 1. In this way, the scraped up printing ink by the scraping piece 9 accumulates on one side of the scraping piece 19.
A part of it adheres to the outer peripheral surface of the printing ink supply port roller 8 and is carried away and sent to the ink reservoir, and the other part is attached to the cylindrical plate cylinder 1 on the center side of the surplus part 1''. The printing ink flows out toward the inner circumferential surface, and as the cylindrical plate cylinder 1 rotates approximately once, it is sent again to the contact area between the cylindrical plate cylinder 1 and the printing ink supply roller 8, where it is effectively used for printing. As described above, according to the present invention, by adding the simple structure of providing a scraping piece, wasteful consumption of printing ink can be suppressed, and leakage of printing ink to the outside of the cylindrical plate cylinder can be prevented. It can be prevented.
第１図は本発明による印刷装置の一つの実施例の一つの
実施例をその要部について示す側面図、第２図はそれの
概略平面図、第３図は第２図の線１１１−１１１に沿う
拡大断面図である。
１・・・・・・円筒状版胴、２・・・・・・中心軸、３
・・・・・・孔版原紙、４・・・・・・支持体、５・・
・・・・軸、６６・・・・・・レバー ７・・・・・・
軸、８・・・・・・印刷インキ供給ローラ、９・・・・
・・ねじ、１０・・・・・・偏心カム、１１・・・・・
・長孔、１２・・・・・・スクイージ要素、１３・・・
・・・取付ピン、１４・・・・・・ねじ棒、１５・・・
・・・圧縮コイルばね、１６・・・・・・インキ供給パ
イプ、１７・・・・・・取付部材、１８・・・・・・ば
ね片部、１９・・・・・・掻き寄せ片、２０・・・・・
・プレスカーラ、２１・・・・・・軸。FIG. 1 is a side view showing the main parts of one embodiment of a printing apparatus according to the present invention, FIG. 2 is a schematic plan view thereof, and FIG. 3 is a line 111-111 shown in FIG. 2. FIG. 1... Cylindrical plate cylinder, 2... Central shaft, 3
・・・・・・Digital paper, 4... Support, 5...
...Shaft, 66...Lever 7...
Shaft, 8... Printing ink supply roller, 9...
...Screw, 10...Eccentric cam, 11...
・Long hole, 12... Squeegee element, 13...
...Mounting pin, 14...Threaded rod, 15...
... Compression coil spring, 16 ... Ink supply pipe, 17 ... Mounting member, 18 ... Spring piece, 19 ... Scraping piece, 20...
・Press cara, 21...Axis.
Claims (1)
りに回転するインキ通過性の円筒状版胴と、外周面にて
前記円筒状版胴の内周面に接触すべく配置され自身の中
心軸線の周りに回転するローラとを有している印刷装置
に於て、前記円筒状版胴の側縁部におけるその内周面に
弾力的に係合したインキ掻き寄せ片を有し、前記インキ
掻き寄せ片はそれに接触しつつ転動する前記円筒状版胴
の内周面に付着した印刷インキを前記円筒状版胴の軸線
方向中央部へ向けて掻き寄せるよう前記円筒状版胴の内
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
持されて配置され且該ばね片部の弾性により前記円筒状
版胴の内周面に弾力的に押付けられていることを特徴と
する印刷装置。1. An ink-permeable cylindrical plate cylinder whose inner periphery is supplied with printing ink and rotates around its own central axis; In a printing device having a roller rotating around a central axis, an ink scraping piece is elastically engaged with an inner circumferential surface of a side edge of the cylindrical plate cylinder, The ink scraping piece is configured to scrape up printing ink adhering to the inner circumferential surface of the cylindrical plate cylinder toward the axial center of the cylindrical plate cylinder as it rolls in contact with the ink scraping piece. It is characterized in that it is supported and arranged by a spring piece in a state inclined with respect to the direction of movement of the circumferential surface, and is elastically pressed against the inner circumferential surface of the cylindrical plate cylinder by the elasticity of the spring piece. Printing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14169079A JPS5954039B2 (en) | 1979-10-31 | 1979-10-31 | printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14169079A JPS5954039B2 (en) | 1979-10-31 | 1979-10-31 | printing device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1398680A Division JPS5664872A (en) | 1980-02-06 | 1980-02-06 | Supporting apparatus of printing ink supply roller in printing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5664893A JPS5664893A (en) | 1981-06-02 |
| JPS5954039B2 true JPS5954039B2 (en) | 1984-12-27 |
Family
ID=15297943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14169079A Expired JPS5954039B2 (en) | 1979-10-31 | 1979-10-31 | printing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5954039B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61108557A (en) * | 1984-10-31 | 1986-05-27 | Riso Kagaku Corp | Ink supplying apparatus for printing apparatus |
| US5285724A (en) * | 1990-08-31 | 1994-02-15 | Ricoh Company, Ltd. | Ink scraper for a stencil printer |
| JP4824314B2 (en) * | 2005-01-05 | 2011-11-30 | 東北リコー株式会社 | Stencil printing drum and stencil printing device |
-
1979
- 1979-10-31 JP JP14169079A patent/JPS5954039B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5664893A (en) | 1981-06-02 |
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