JPH0222059A - Printing cylinder regulator - Google Patents
Printing cylinder regulatorInfo
- Publication number
- JPH0222059A JPH0222059A JP1093262A JP9326289A JPH0222059A JP H0222059 A JPH0222059 A JP H0222059A JP 1093262 A JP1093262 A JP 1093262A JP 9326289 A JP9326289 A JP 9326289A JP H0222059 A JPH0222059 A JP H0222059A
- Authority
- JP
- Japan
- Prior art keywords
- printing cylinder
- printing
- cylinder
- rotating
- arm
- 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
- 230000006835 compression Effects 0.000 description 9
- 238000007906 compression Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 2
- 206010011224 Cough Diseases 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
- B41F13/26—Arrangement of cylinder bearings
- B41F13/28—Bearings mounted eccentrically of the cylinder axis
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Presses (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分舒〉
本発明は、回転する印刷胴とブランケット胴との隙間に
挾まれて給紙され且つ印刷が行われる印刷機において、
ブラケット胴に対する印刷胴の押圧力を自在に変え得る
印刷胴調整装置に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application> The present invention provides a printing press in which paper is fed and printed while being sandwiched between a rotating printing cylinder and a blanket cylinder.
The present invention relates to a printing cylinder adjusting device that can freely change the pressing force of the printing cylinder against the bracket cylinder.
〈従来の技術〉
近接して回転する印刷胴及びブランケット胴（圧胴）の
間に給紙し印刷を行う従来の輪転式印刷機を第２図に示
したように、対向して配設された１対のフレーム１１
（但しこれらフレーム１１のうちの一方は図示せず）の
間には、印刷すべき版が装着される円筒状の印刷胴１２
が配されている。印刷胴１２には、該印刷胴１０と同心
状且つ一体的に回転軸１３が貫通していると共に、該回
転軸１３の両端部は、フレーム１１の夫々を貫通し且つ
外方へと突出する状態で、フレーム１１に回転自在に支
持されている。さらにフレーム１１の間には、既述した
印刷胴１２との間に紙等の被印刷物を挾み込み且つ押圧
する円筒状のブランケット胴１４が配され、且つ印刷胴
１２の回転軸１３と平行する図示しなし）回転軸により
、フレーム１１に回転自在に支持されている。該ブラン
ケット胴１４の外周部には、印刷胴１２への被印刷物の
抑圧をより効果的なものとするために、ゴム状弾性体等
から成る被覆層１５が形成されている。<Prior Art> As shown in Fig. 2, a conventional rotary printing press that prints by feeding paper between a printing cylinder and a blanket cylinder (impression cylinder) that rotate in close proximity is arranged facing each other. A pair of frames 11
(However, one of these frames 11 is not shown.) Between these frames 11 is a cylindrical printing cylinder 12 on which a plate to be printed is mounted.
are arranged. A rotating shaft 13 passes through the printing cylinder 12 concentrically and integrally with the printing cylinder 10, and both ends of the rotating shaft 13 pass through each of the frames 11 and project outward. In this state, it is rotatably supported by the frame 11. Furthermore, a cylindrical blanket cylinder 14 is disposed between the frames 11 and the above-described printing cylinder 12 to sandwich and press a printing material such as paper, and is parallel to the rotation axis 13 of the printing cylinder 12. It is rotatably supported by the frame 11 by a rotating shaft (not shown). A coating layer 15 made of a rubber-like elastic material or the like is formed on the outer circumference of the blanket cylinder 14 in order to more effectively suppress the printing material onto the printing cylinder 12.
夫々のフレーム１１より突出する印刷胴１２の回転軸１
３の端部には、アーム１６の一端部が軸受１７を介して
回動自在に結合されていると共に、該アーム１６の中間
部は、フレーム１１より外方へ突設された支持軸１８に
よって回動自在に支持されている。アーム１６の他端部
は、摺動軸１９の一端部とピン２０を介して回動自在に
連結されていると共に、該摺動軸１９の他端側は、アー
ム１６の図中上方のフレーム１１に突設された案内部材
２１を、図中上下方向に摺動自在に貫通している。The rotation axis 1 of the printing cylinder 12 protrudes from each frame 11
3, one end of an arm 16 is rotatably coupled via a bearing 17, and the intermediate portion of the arm 16 is supported by a support shaft 18 projecting outward from the frame 11. It is rotatably supported. The other end of the arm 16 is rotatably connected to one end of a sliding shaft 19 via a pin 20, and the other end of the sliding shaft 19 is connected to a frame above the arm 16 in the figure. The guide member 21 protruding from the guide member 11 is slidably penetrated in the vertical direction in the figure.
案内部材２１より下方に位置する摺動軸１９には、係止
部２２が一体的に形成されていると共に、該係止部２２
と案内部材２１との間には圧縮ばね２３が介装されてア
ーム１６の他端側を常に図中下方へと付勢し、且つ案内
部材２１より突出する摺動軸１９の端部には抜は止め用
のナツト２４が螺合固定されている。A locking portion 22 is integrally formed on the sliding shaft 19 located below the guide member 21, and the locking portion 22
A compression spring 23 is interposed between the guide member 21 and the other end of the arm 16 to always urge the arm 16 downward in the figure. A nut 24 for preventing removal is screwed and fixed.
従って、圧縮ばね２３の付勢力により摺動軸１９がアー
ム１６の他端部を図中下方へと押し下げ、これに伴いア
ーム１６が支持軸１８を中心として時計回転方向に回転
し、印刷胴１０をブランケット胴１４側へと押しやる。Therefore, the sliding shaft 19 pushes the other end of the arm 16 downward in the figure due to the biasing force of the compression spring 23, and accordingly, the arm 16 rotates clockwise around the support shaft 18, and the printing cylinder 10 is pushed toward the blanket cylinder 14 side.
こうして印刷胴１０は、常に圧縮ばね２３による一定の
押圧力で被印刷物をブランケット胴１４との間に挾み込
み、印刷に必要な押圧力にツブ圧）を得るようになって
いる。In this way, the printing cylinder 10 always holds the printing material between the printing cylinder 14 and the blanket cylinder 14 with a constant pressing force from the compression spring 23, thereby obtaining the pressing force necessary for printing (glob pressure).
またこれに加え、種々の被印刷物の厚さに対応して印刷
胴１０とブランケット胴との軸間距離を適宜変化させ得
るよう、支持軸１８とピン２０との間のアーム１６には
、ピン２５が突設されていると共に、該ピン２５は、回
転ハンドル２６によって回転自在、且つ図示しない固定
手段によって任意位置で固定され得るカム２７に摺接し
ている。このため、回転ハンドル２６を回動させれば、
アーム１６のピン２５が回動するカム２７に摺接してア
ーム１６を回動させ、以って印刷胴１２とブランケット
胴１４との隙間距離が変更されるのである。In addition, a pin is provided on the arm 16 between the support shaft 18 and the pin 20 so that the distance between the printing cylinder 10 and the blanket cylinder can be changed appropriately in accordance with the thickness of various printing materials. 25 is provided in a protruding manner, and the pin 25 is in sliding contact with a cam 27 which is rotatable by a rotary handle 26 and can be fixed at any position by a fixing means (not shown). Therefore, if the rotation handle 26 is rotated,
The pin 25 of the arm 16 slides against the rotating cam 27 to rotate the arm 16, thereby changing the gap distance between the printing cylinder 12 and the blanket cylinder 14.
〈発明が解決しようとする課題〉
第２図に示したような従来の印刷胴調整装置では、圧縮
ばね２３の押圧力によって印刷胴１２をブランケット胴
１４へと付勢し印刷に必要なニップ圧が得られるように
なっている。しかるに厚手の紙等の印刷においては、比
較的大きなニップ圧を保持できるように印刷胴１２をブ
ランケット胴１４に押圧するため該ブランケット胴１４
の被覆層１５等が変形して、真円状態の接触回転が困難
となる。<Problems to be Solved by the Invention> In the conventional printing cylinder adjusting device as shown in FIG. is now available. However, when printing on thick paper, etc., the printing cylinder 12 is pressed against the blanket cylinder 14 in order to maintain a relatively large nip pressure.
The coating layer 15 and the like are deformed, making contact rotation in a perfect circle difficult.
こうして僅かに変形したブランケット胴１４等の回転に
伴い周期的な振動が発生すると共に、さらにこの振動が
印刷胴１２を付勢する圧縮ばね２３の自励振動によって
増幅され許容し難いものとなるという問題があった。Periodic vibrations occur as the blanket cylinder 14, etc., which has been slightly deformed in this manner, rotates, and this vibration is further amplified by the self-excited vibration of the compression spring 23 that biases the printing cylinder 12, and becomes unacceptable. There was a problem.
また、被印刷物の厚さ等積々の条件の変化に伴ってニッ
プ圧を変更する場合、従来の調整装置では、摺動軸１９
に螺合するナツト２４を回動させて圧縮ばね２３の押圧
力を変化させるか、或いは圧縮ばね２３自体を交換する
かのいずれかの方策しか取り得ず、しかもこれらの調整
作業を回転軸１８の左右両端部の夫々の側で同時に行わ
なければならないので、極めて複雑且つ高度の熟練を要
する作業をせざるを得ないという問題があった。In addition, when changing the nip pressure due to changes in cumulative conditions such as the thickness of the printing material, in the conventional adjustment device, the sliding shaft 19
The only options available are to change the pressing force of the compression spring 23 by rotating the nut 24 that is screwed into the spring 23, or to replace the compression spring 23 itself. Since the work must be done simultaneously on both the left and right ends, there is a problem in that the work is extremely complicated and requires a high degree of skill.
く課題を解決するための手段〉
本発明による印刷胴調整装置は、一対のフレーム間に回
転自在且つ相互に近接して軸支された印刷胴及び圧胴の
隙間に給紙され印刷を行う印刷機において、前記フレー
ムに回動部材を回転自在に設け、該回動部材の回転中心
とは傷心して前記印刷胴の回転軸を前記回動部材に回転
自在に嵌着させると共に、前記回動部材を回動させて前
記印刷胴と前記圧胴との隙間距離を変更する回動手段を
備えた乙とを特徴とするものである。Means for Solving the Problems> The printing cylinder adjusting device according to the present invention is a printing cylinder that performs printing by feeding paper into a gap between a printing cylinder and an impression cylinder that are rotatably supported between a pair of frames and close to each other. In the machine, a rotating member is rotatably provided on the frame, and the rotating shaft of the printing cylinder is rotatably fitted to the rotating member with a center of rotation of the rotating member being centered, and the rotating member is rotatably fitted to the rotating member. The present invention is characterized by a rotating means for rotating the printing cylinder and changing the gap distance between the printing cylinder and the impression cylinder.
〈作 用〉
回動手段を作動させることにより、フレームに回転自在
に設けられた回動部材が回転し、該回動部材の回転中心
とは偏心し且つ回転自在に嵌着された印刷胴の回転軸が
、回動部材の回転と共に該回動部材の回転中心を中心と
して回動し移動して、印刷胴と圧胴との隙間距離が変更
される。<Operation> By activating the rotation means, a rotation member rotatably provided on the frame rotates, and the rotation member is eccentric from the rotation center of the rotation member and rotates around the printing cylinder fitted rotatably. As the rotating member rotates, the rotating shaft rotates and moves about the rotation center of the rotating member, thereby changing the gap distance between the printing cylinder and the impression cylinder.
〈実 施 例〉
以下、本発明による印刷胴調整装置の一実施例を図を参
照して詳細に説明する。なお従来の技術と同一の部材に
は同一の符号を付して表すこととし詳細な説明は省略す
る。<Embodiment> Hereinafter, one embodiment of the printing cylinder adjusting device according to the present invention will be described in detail with reference to the drawings. Note that the same members as those in the prior art are denoted by the same reference numerals, and detailed description thereof will be omitted.
この一実施例を第１図に示したように、対向して配され
た一対のフレーム１１ （このうち一方のフレーム１１
は図示せず）の夫々には、円筒状の軸受ホルダ３１が図
示しない軸受等を介して回転自在に嵌合されている。軸
受ホルダ３１には、咳軸受ホルダ３１０回転中心からｌ
ｔ！け傷心して、図示しない軸受が嵌着されていると共
に、該軸受には印刷胴１２の回転軸１３が嵌着されてい
る。軸受ホルダ３１の図中外方の端部には、アーム３２
の一端部が一体的に固設されている。該アーム３２の他
端部には、接続棒３３の一端部が回転自在に連結されて
いると共に、該接続棒３３の他端部はアーム３４の一端
部に回転自在に連結されている。As this embodiment is shown in FIG. 1, a pair of frames 11 (one of the frames 11
(not shown), a cylindrical bearing holder 31 is rotatably fitted through a bearing (not shown) or the like. The bearing holder 31 has a distance l from the rotation center of the cough bearing holder 310.
T! A bearing (not shown) is fitted in the center of the print, and the rotating shaft 13 of the printing cylinder 12 is fitted in the bearing. An arm 32 is attached to the outer end of the bearing holder 31 in the figure.
One end of the is integrally fixed. One end of a connecting rod 33 is rotatably connected to the other end of the arm 32, and the other end of the connecting rod 33 is rotatably connected to one end of the arm 34.
乙のアーム３４は、１対のフレーム１１の夫々の外側に
配されると共に、これらアーム３４の他端部ば、印刷胴
１２の回転軸１３に平行して配され且つフレーム１１の
夫々を貫通する連結棒３４の両端部に夫々固設されてい
る。また連結棒３４の端部には、乙の連結棒を回動させ
るための回転ハンドル３６が設けられている。The arms 34 are arranged on the outside of each of the frames 11, and the other ends of these arms 34 are arranged parallel to the rotation axis 13 of the printing cylinder 12 and extend through each of the frames 11. The connecting rods 34 are fixedly attached to both ends of the connecting rods 34, respectively. Furthermore, a rotation handle 36 is provided at the end of the connecting rod 34 for rotating the connecting rod.
従って、回転ハンドル３６を回動させれば、回転ハンド
ル３６と共にアーム３４が回動して接続棒３３を動かし
、アーム３２が回動する。アーム３２の回動と共に軸受
ホルダ３１が回動し、さらに該軸受ホルダ３１の回転中
心に対して偏心して支持された印刷胴１２の回転軸１３
が、図中路上下方向に移動して、印刷胴１２とブランケ
ット胴１４との隙間距離が変更され、これに伴いニップ
圧が自在に変えられる。また印刷中においてこの隙間距
離を一定に保持するために、回転ハンドル３６の回転軸
３５を回転不可に保つ図示しない固定手段が備えられて
いる。Therefore, when the rotating handle 36 is rotated, the arm 34 is rotated together with the rotating handle 36 to move the connecting rod 33, and the arm 32 is rotated. The bearing holder 31 rotates as the arm 32 rotates, and the rotation shaft 13 of the printing cylinder 12 is supported eccentrically with respect to the rotation center of the bearing holder 31.
is moved upward and downward in the figure, the gap distance between the printing cylinder 12 and the blanket cylinder 14 is changed, and the nip pressure can be freely changed accordingly. Further, in order to keep this gap distance constant during printing, a fixing means (not shown) is provided to keep the rotating shaft 35 of the rotating handle 36 from rotating.
こうして本発明では、従来の如く圧縮ばね２３等による
押圧力を用いず、回転ハンドル３６の回動に伴って直接
に隙間距離を変更させる構成としたので、種々の条件を
有する被印刷物に対するニップ圧を自在且つ容易に変一
化させる乙とができると共に、圧縮ばね２３の自励振動
等に伴う印刷胴１２の許容し難い振動を抑止できるので
ある。In this way, in the present invention, the gap distance is directly changed with the rotation of the rotary handle 36, without using the pressing force from the compression spring 23 or the like as in the past, so that the nip pressure for printing materials having various conditions is changed. This makes it possible to freely and easily change the printing cylinder 12, and also to suppress unacceptable vibrations of the printing cylinder 12 due to self-excited vibrations of the compression spring 23, etc.
ところで本実施例において、印刷胴１２の回転軸１３が
嵌着される軸受ホルダ３１は、アーム３２．３４及びプ
ッシュプルロッド３３等から成るリンク機構によって伝
えられろ回転ハンドル３６の同動力によって回動されて
いる。しかし、もちろん前記リンク機構の代わりに、平
歯車やラック等から成る他の動力伝達機構を用いてもよ
い。By the way, in this embodiment, the bearing holder 31 into which the rotating shaft 13 of the printing cylinder 12 is fitted is rotated by the same force of the rotating handle 36, which is transmitted by a link mechanism consisting of an arm 32, 34, a push-pull rod 33, etc. ing. However, of course, other power transmission mechanisms such as spur gears, racks, etc. may be used instead of the link mechanism.
〈発明の効果〉
本発明の印刷胴調整装置によれば、回動手段を作動させ
てフレームに回転自在に設けられた回動部材を回動させ
るに伴い、該回動部材の回転中心とは傷心し且つ回転自
在に嵌着された印刷胴の回転軸が移動して、印刷胴と圧
胴との隙間距離が調整されるので、厚さや硬軟等積々の
異なる条件を有する被印刷物に応じて、該被印刷物に対
するニップ圧を自在且つ容易に変化させることができる
と共に、従来の調整装置のようなばねを用いた付勢機構
を廃したので、ばね振動による印刷胴の振動が防止され
良好な印刷が実現される。<Effects of the Invention> According to the printing cylinder adjustment device of the present invention, as the rotating member rotatably provided on the frame is rotated by operating the rotating means, the center of rotation of the rotating member is The rotation axis of the printing cylinder, which is rotatably fitted in a rotatable manner, moves to adjust the gap distance between the printing cylinder and the impression cylinder. Therefore, the nip pressure against the printing material can be freely and easily changed, and since the biasing mechanism using a spring like the conventional adjustment device is eliminated, vibration of the printing cylinder due to spring vibration is prevented, resulting in a good result. printing is realized.
第１図は本発明による印刷胴調整装置の一実施例を一部
破断して表した斜視図、第２図は従来の印刷胴調整装置
の一例を一部破断し一〇表した斜視図である。
図面中、１１ばフレーム、１２ば印刷胴、１３は回転軸
、１４はブランケット胴、１６，３２゜３４はアーム、
１９は摺動軸、２３は圧縮ばね、２５はビン、２６，３
６は回転ハンドル、２７はカム、３１は軸受ホルダ、３
３は接続棒、３５は連結棒である。FIG. 1 is a partially cutaway perspective view of an embodiment of a printing cylinder adjusting device according to the present invention, and FIG. 2 is a partially cutaway perspective view of an example of a conventional printing cylinder adjusting device. be. In the drawing, 11 is a frame, 12 is a printing cylinder, 13 is a rotating shaft, 14 is a blanket cylinder, 16, 32°, 34 is an arm,
19 is a sliding shaft, 23 is a compression spring, 25 is a bottle, 26,3
6 is a rotating handle, 27 is a cam, 31 is a bearing holder, 3
3 is a connecting rod, and 35 is a connecting rod.
Claims (2)
軸支された印刷胴及び圧胴の隙間に給紙され印刷を行う
印刷機において、前記フレームに回動部材を回転自在に
設け、該回動部材の回転中心とは偏心して前記印刷胴の
回転軸を前記回動部材に回転自在に嵌着させると共に、
前記回動部材を回動させて前記印刷胴と前記圧胴との隙
間距離を変更する回動手段を備えたことを特徴とする印
刷胴調整装置。(1) In a printing machine that performs printing by feeding paper into a gap between a printing cylinder and an impression cylinder that are rotatably and pivotally supported in close proximity to each other between a pair of frames, a rotating member is rotatably provided on the frame, The rotating shaft of the printing cylinder is rotatably fitted to the rotating member eccentrically from the rotation center of the rotating member, and
A printing cylinder adjusting device comprising: a rotating means for rotating the rotating member to change a gap distance between the printing cylinder and the impression cylinder.
と、回動部材に一体的に固設された第２のアームと、こ
れら第１と第２のアームの夫々に両端部を回転自在に連
結した接続棒とで回動部材が構成されていることを特徴
とする請求項（１）記載の印刷胴調整装置。(2) A first arm that is provided on the frame and can be manually rotated, a second arm that is integrally fixed to the rotating member, and both ends of each of the first and second arms are rotatable. 2. The printing cylinder adjusting device according to claim 1, wherein the rotating member is constituted by a connecting rod connected to the printing cylinder adjusting device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18202988A | 1988-04-15 | 1988-04-15 | |
| US182,029 | 1988-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0222059A true JPH0222059A (en) | 1990-01-24 |
Family
ID=22666808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1093262A Pending JPH0222059A (en) | 1988-04-15 | 1989-04-14 | Printing cylinder regulator |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0337801A3 (en) |
| JP (1) | JPH0222059A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6445104B1 (en) | 1998-12-24 | 2002-09-03 | Asmo Co. Ltd. | Washer pump and motor brush support structure |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11685149B2 (en) * | 2021-06-24 | 2023-06-27 | Stolle Machinery Company, Llc | Printing plate pressure adjustment system and can decorator employing same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB351859A (en) * | 1930-01-16 | 1931-07-02 | Rockstroh Werke Ag | Improvements in and relating to rotary offset printing machines |
| US2160613A (en) * | 1936-11-19 | 1939-05-30 | Goss Printing Press Co Ltd | Rotary printing press |
| DE1113220B (en) * | 1960-04-09 | 1961-08-31 | Roland Offsetmaschf | On and off device for printing machine cylinders |
| US3527165A (en) * | 1967-01-03 | 1970-09-08 | Harris Intertype Corp | Cylinder throw mechanism for printing presses |
-
1989
- 1989-04-14 JP JP1093262A patent/JPH0222059A/en active Pending
- 1989-04-14 EP EP89303716A patent/EP0337801A3/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6445104B1 (en) | 1998-12-24 | 2002-09-03 | Asmo Co. Ltd. | Washer pump and motor brush support structure |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0337801A3 (en) | 1990-06-20 |
| EP0337801A2 (en) | 1989-10-18 |
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