JPH0667615B2 - Adsorption member fixing device for sheet-fed printing press with reversing mechanism - Google Patents

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は反転機構付枚葉印刷機において、倍径胴の爪に
くわえられて搬送される紙の紙尻を吸着保持する位相調
整自在な吸着部材を、位相調整後に胴本体側に固定する
吸着部材固定装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention is a sheet-fed printing press with a reversing mechanism and is capable of phase adjustment by suction holding the paper tail of a paper that is carried while being held by the nail of a double-diameter cylinder. The present invention relates to a suction member fixing device that fixes a suction member to the trunk body side after phase adjustment.

〔従来の技術〕[Conventional technology]

印刷の多様化に伴い、一台で片面刷と両面刷とに使い分
けることのできる各種の反転機構付枚葉印刷機が提案さ
れて実用化されており、この種の印刷機は、反転用の胴
として倍径の反転胴を備えた１本タイプのものと、渡し
胴および反転胴とその間の倍径胴とを備えた３本タイプ
のものとに大別される。Along with the diversification of printing, various sheet-fed printing presses with a reversing mechanism that can be used for single-sided printing and double-sided printing have been proposed and put into practical use. The cylinder is roughly classified into a single type having a double diameter reversing cylinder and a three type having a transfer cylinder, a reversing cylinder and a double diameter cylinder therebetween.

第３図および第４図はそれぞれ３本タイプの反転機構付
枚葉印刷機の印刷動作を説明するために示す胴配列図で
あって、第３図は片面刷の場合を示しており、第４図は
両面刷の場合を示している。そこでこの種印刷機の構成
と動作との概要を同図に基づいて説明すると、図示しな
い版胴の下方においてこれと対接するゴム胴１の斜め下
方には、爪２と爪台３とからなるくわえ爪装置４（以下
爪４と言う）を外周切欠き内に備えた圧胴５が周面を対
接させて設けられており、また、下流側の印刷ユニット
にも版胴に対接するゴム胴６と、爪７と爪台８とからな
るくわえ爪装置９（以下爪９と言う）を備え周面をゴム
胴６に対接させた圧胴10とが配設されている。そして、
両方の圧胴5,10間には、互いに周面を対接させた渡し胴
11と倍径胴12および反転胴13の３本ローラからなる反転
機構が設けられている。このうち、渡し胴11は、爪14と
爪台15とからなるくわえ爪装置16（以下爪16と言う）を
外周切欠き内に備えている。また倍径胴12は、渡し胴11
等の倍径を有していて、その外周部を２等分する位置に
は、爪17と爪台18とからなる２組のくわえ爪装置19,20
（以下爪19,20と言う）が設けられており、各爪19,20よ
りも胴の回転方向へ所定角度先行する位置には、吸着部
材としての２列の吸着ヘッド21,22が配設されている。
そしてこの吸着ヘッド21,22は、倍径胴12の外周部に軸
線方向へ複数個並列しているとともに、円周方向へ移動
自在に形成されており、爪19,20との円周方向への位相
を調整できるように構成されている。さらに反転胴13の
外周切欠き内には、爪23と爪台24とからなるくわえ爪装
置（Ａ）25（以下爪（Ａ）25と言う）と、爪26と爪台27
とからなるくわえ爪装置（Ｂ）28（以下爪（Ｂ）28と言
う）とが円周方向に隣接して配設されている。そして各
胴1,5,11,12,13,10,6は互いにギアで駆動連結されてお
り、このうち、反転胴13の端軸上には、軸固定の固定ギ
アと回動自在な回動ギアとが互いに固定、固定解放自在
に設けられていて、固定ギアは圧胴10のギアと噛み合
い、回動ギアは倍径胴のギアと噛み合っている。FIGS. 3 and 4 are cylinder arrangement diagrams shown to explain the printing operation of a sheet-fed printing press with a three-fold reversing mechanism, and FIG. 3 shows the case of single-sided printing. FIG. 4 shows the case of double-sided printing. An outline of the configuration and operation of this type of printing machine will be described below with reference to the same drawing. Below a plate cylinder (not shown), a claw 2 and a claw base 3 are formed obliquely below the blanket cylinder 1 that is in contact with the plate cylinder. An impression cylinder 5 provided with a gripper device 4 (hereinafter, referred to as a claw 4) in an outer peripheral notch is provided with its peripheral surfaces in contact with each other, and a downstream printing unit also has a rubber contacting the plate cylinder. A cylinder 6 and a gripper device 9 (hereinafter, referred to as a claw 9) including a claw 7 and a claw base 8 are provided, and an impression cylinder 10 having a circumferential surface abutting the blanket cylinder 6 is disposed. And
Between the two impression cylinders 5 and 10, the transfer cylinder with the peripheral surfaces facing each other.
A reversing mechanism composed of three rollers including a double-diameter cylinder 12, a reversing cylinder 12, and a reversing cylinder 13 is provided. Of these, the transfer cylinder 11 is provided with a gripper device 16 (hereinafter, referred to as a claw 16) including a claw 14 and a claw base 15 in an outer peripheral cutout. Also, the double-diameter cylinder 12 is the transfer cylinder 11
Two sets of gripping jaw devices 19, 20 each consisting of a pawl 17 and a pawl base 18 are provided at positions where the outer peripheral portion is divided into two equal parts having a double diameter.
(Hereinafter, referred to as claws 19 and 20) are provided, and two rows of suction heads 21 and 22 serving as suction members are arranged at positions ahead of the claws 19 and 20 by a predetermined angle in the body rotation direction. Has been done.
A plurality of the suction heads 21 and 22 are arranged in the outer peripheral portion of the double-diameter cylinder 12 in the axial direction, and are formed so as to be movable in the circumferential direction. It is configured so that the phase of can be adjusted. Further, in the outer peripheral notch of the reversing cylinder 13, a gripper jaw device (A) 25 (hereinafter referred to as a nail (A) 25) including a nail 23 and a nail base 24, a nail 26 and a nail base 27.
A gripper device (B) 28 (hereinafter, referred to as a claw (B) 28) composed of and is disposed adjacent to each other in the circumferential direction. The cylinders 1, 5, 11, 12, 13, 10, 6 are drivingly connected to each other by gears, and of these, on the end shaft of the reversing cylinder 13, a fixed gear fixed to the shaft and a rotatable rotation are provided. The moving gear is fixed to and fixedly released from each other, the fixed gear meshes with the gear of the impression cylinder 10, and the rotating gear meshes with the gear of the double diameter cylinder.

このように構成されていることにより、第３図に示す片
面刷の場合、各胴が矢印方向に回転すると、給紙装置か
らスイング装置を経て圧胴５の爪４にくわえ替えられた
紙30は、さらに渡し胴11の爪16にくわえ替えられて搬送
され、この紙30には、ゴム胴１と圧胴５との間を通過す
るときに表面へ１色目の印刷が施される。この紙30は、
渡し胴11の爪16からの倍径胴12の爪19（20）にくわえ替
えられて搬送され、図示のように爪19と爪（Ａ）25とが
対向することにより爪（Ａ）25にくわえ替えられて搬送
される。このあとさらに圧胴10の爪９にくわえ替えられ
て搬送され、ゴム胴６と圧胴10との間を通過するとき
に、紙30には１色目と同じ表面に２色目の印刷が施され
る。With such a configuration, in the case of single-sided printing shown in FIG. 3, when each cylinder rotates in the direction of the arrow, the paper 30 is gripped by the claw 4 of the impression cylinder 5 from the paper feeding device through the swing device. Is further gripped by the claws 16 of the transfer cylinder 11 and conveyed, and when the paper 30 passes between the blanket cylinder 1 and the impression cylinder 5, the first color is printed on the surface. This paper 30
The jaw 16 of the transfer cylinder 11 is gripped by the nail 19 (20) of the double-diameter cylinder 12 and conveyed, and the nail 19 and the nail (A) 25 face each other as shown in the drawing, so that the nail (A) 25 It is changed and transported. After this, the paper 30 is further gripped by the claws 9 of the impression cylinder 10 and conveyed, and when passing between the blanket cylinder 6 and the impression cylinder 10, the paper 30 is printed with the second color on the same surface as the first color. It

片面刷から両面刷に移行する場合には、第３図において
爪19と爪25とが対応している状態から、第４図に示す吸
着ヘッド21と爪（Ｂ）28とが対応する状態になるように
前記回動ギアを回動させて倍径胴12を含む上流側の胴群
を反転胴13に対して位相調整するとともに、倍径胴12上
の爪19,20と吸着ヘッド21,22との相対位相を調節して紙
サイズの変更に対応する。また、倍径胴12の爪19,20が
紙30のくわえを解放する位置が、片面刷と両面刷とで
は、ほぼ紙30の天地方向長さだけ変わるので、解放しカ
ムの作用位置を調節する。このようにして切替調整を行
ったのち、各胴を回転させると、片面刷の場合と同様に
して表面に印刷が施された紙30は、倍径胴12の爪19（2
0）にくわえられかつ紙尻を吸着ヘッド21（22）で吸着
されて搬送され、この紙30は、図に符号30Aで示すよう
に紙尻が両胴12,13の対接点に達するまで搬送される。
このとき、爪（Ｂ）28の開閉と吸着ヘッド21の吸着解放
とにより紙30Aの紙尻をくわえると同時に爪20がくわえ
を解放し紙30Aは紙尻側を先行させて反転胴13で搬送さ
れる。この搬送途中で両方の爪（Ａ）25,（Ｂ）28が一
瞬タイミングを違えて開閉し、紙30Aは爪（Ｂ）28から
爪（Ａ）25にくわえ替えられて搬送される。そして、爪
（Ａ）25と圧胴10の爪９とが対向すると、紙30Aは爪９
にくわえ替えられ、図に符号30Bで示すように搬送され
る。この紙30Bはゴム胴６と圧胴10との間を通過すると
きに裏面がゴム胴６に対接するので、裏面に印刷が施さ
れ、前記表面への印刷とで両面刷となって排紙される。When shifting from single-sided printing to double-sided printing, the state in which the claw 19 and the claw 25 in FIG. 3 correspond to the state in which the suction head 21 and the claw (B) 28 shown in FIG. 4 correspond to each other. The rotation gear is rotated so that the upstream cylinder group including the double diameter cylinder 12 is phase-adjusted with respect to the reversing cylinder 13, and the claws 19, 20 and the suction head 21, on the double diameter cylinder 12 are adjusted. Corresponds to the change of paper size by adjusting the relative phase with 22. Also, the positions where the claws 19 and 20 of the double-diameter cylinder 12 release the grip of the paper 30 differ between single-sided printing and double-sided printing by approximately the vertical length of the paper 30, so release it to adjust the position of action of the cam. To do. After performing the switching adjustment in this way, when each cylinder is rotated, the paper 30 with the surface printed in the same manner as in the case of single-sided printing, the claw 19 (2
0) and the bottom of the paper is sucked by the suction head 21 (22) to be conveyed, and the paper 30 is conveyed until the bottom of the paper reaches the opposite contact points of both cylinders 12 and 13 as indicated by reference numeral 30A in the figure. To be done.
At this time, by opening and closing the claw (B) 28 and adsorbing and releasing the suction head 21, the grip of the bottom of the paper 30A is gripped, and at the same time, the grip 20 releases the grip and the paper 30A is conveyed by the reversing cylinder 13 with the tail side of the paper 30A ahead. To be done. During this conveyance, both the claws (A) 25 and (B) 28 are opened and closed with a momentary difference in the timing, and the paper 30A is gripped by the claw (B) 28 and conveyed. When the claw (A) 25 and the claw 9 of the impression cylinder 10 face each other, the paper 30A is claw 9.
In addition, it is transported as indicated by reference numeral 30B in the figure. The back surface of the paper 30B contacts the blanket cylinder 6 when passing between the blanket cylinder 6 and the impression cylinder 10, so that the back surface is printed, and the front surface is printed to form a double-sided print. To be done.

このように動作する３本のローラ式の反転機構付枚葉印
刷機における倍径胴12には、前述したように紙の先端を
くわえる爪19,20と紙尻を吸着する吸着ヘッド21,22とが
設けられており、これらは、片面側と両面側との切替時
や紙サイズの変更時に互いの円周方向位相を調節する必
要がある。そこで胴本体周面に、円周方向へ延びる複数
条の溝を軸線方向に並列して設け、何らかの手段で胴本
体側に支持させた複数個の各吸着ヘッドを各溝にそれぞ
れ係入させてこれらの吸着ヘッドを溝内で円周方向へ移
動させることにより位相を調節したのち固定するという
各種の吸着部材位相調節位置が従来から提案されて用い
られている。As described above, the double-diameter cylinder 12 in the sheet-fed printing press with the three-roller reversing mechanism that operates in this manner has the claws 19 and 20 for gripping the leading end of the paper and the suction heads 21 and 22 for sucking the paper tail. Are provided, and it is necessary to adjust the mutual phase in the circumferential direction when switching between the one-sided side and the both-sided side or when changing the paper size. Therefore, a plurality of grooves extending in the circumferential direction are provided in parallel on the circumferential surface of the body of the body in the axial direction, and a plurality of suction heads supported on the body of the body are engaged by means of some means. Various suction member phase adjustment positions have been proposed and used, in which the suction heads are moved in the groove in the circumferential direction to adjust the phase and then fixed.

〔発明が解決しようとする問題点〕[Problems to be solved by the invention]

しかしながら、従来におけるこの種の装置は、両側のフ
レームに支持された倍径胴の両端軸部にそれぞれアーム
を固定してこれらのアームを連結する軸に複数倍の吸着
部材を固定し、位相調節に際しては、両側のアームを胴
端軸に固定するボルトを弛めて位相調節したのちボルト
を締めて固定するという構造がとられており、構造上、
アームを両側フレームの内側に設けなければならないの
で、位相調節のたびに狭いフレームの内側でしかも両側
２箇所のボルトを弛めたり締めたりしなければならず、
調節のために多大の労力と長時間を要するという問題が
あった。However, in the conventional device of this type, the arms are fixed to the shafts at both ends of the double-diameter cylinder supported by the frames on both sides, and the suction member of multiple times is fixed to the shaft connecting the arms to adjust the phase. At that time, a structure is adopted in which the bolts that fix the arms on both sides to the body end shaft are loosened, the phase is adjusted, and then the bolts are tightened and fixed.
Since the arm has to be provided inside the frame on both sides, you have to loosen or tighten the bolts on the inside of the narrow frame and at the two places on both sides each time you adjust the phase.
There is a problem that it takes a lot of labor and a long time for adjustment.

〔問題点を解決するための手段〕[Means for solving problems]

このような問題点を解決するために本発明では、一対の
支持部材を胴本体の両端軸のそれぞれに回転自在に嵌装
してその胴本体側の側面を胴本体の端面に添接させると
ともに、胴本体と両端軸との軸方向を貫通する軸と、フ
レームの外側で一方の端軸端面からの操作で軸を介して
移動し、この移動により支持部材の胴本体と反対側の側
面に添接し、支持部材を胴本体の端面に押し付けるよう
にして支持部材を胴本体に固定する固定部材とを設け
た。In order to solve such a problem, according to the present invention, a pair of supporting members are rotatably fitted to both end shafts of the body, and the side surface on the body side is attached to the end surface of the body. , The shaft penetrating the body main body and the both end shafts in the axial direction, and the outer shaft of the frame is moved through the shaft by an operation from one end shaft end face, and this movement causes the side surface of the support member opposite to the body main body. A fixing member is provided, which is attached to the supporting member and presses the supporting member against the end surface of the body of the body to fix the supporting member to the body of the body.

〔作用〕[Action]

吸着部材の位相を調節する場合には、片側のフレーム外
における操作で軸を介して固定部材を移動させると、固
定部材による面圧が解けて支持部材が回動可動になるの
で、これを回動させると、支持部材間に支架された複数
個の吸着部材がいっせいに胴本体の円周方向へ移動し、
吸着部材の位相が調節される。調節後は固定部材を反対
方向に移動させると、支持部材と胴本体とは面圧によっ
て強固に固定される。When adjusting the phase of the adsorption member, if the fixing member is moved via the shaft by an operation outside one of the frames, the surface pressure of the fixing member is released and the supporting member becomes rotatably movable. When moved, the plurality of suction members supported between the support members move together in the circumferential direction of the body,
The phase of the suction member is adjusted. When the fixing member is moved in the opposite direction after the adjustment, the supporting member and the body are firmly fixed by the surface pressure.

〔実施例〕〔Example〕

第１図および第２図は本発明に係る吸着部材固定装置の
実施例を示し、第１図はこれを実施した倍径胴の横断面
図、第２図は第１図のAA断面図である。なお、胴配列と
各胴の概要構成ならびに印刷動作等については第３図お
よび第４図に基づいて説明したので、その詳しい説明を
省略するとともに以下必要あるときは同図を用いて説明
する。図において、前記倍径胴12は、鋳抜空間部を有す
る円柱状の胴本体31と、その両端部に同心状をなして一
体形成された端軸32,33とを備えており、両端軸32,33
は、軸受ケース34に嵌着されたころがり軸受35を介して
両側のフレーム36に回動自在に軸支されている。37,38
はころがり軸受35の外輪を押さえる軸受押えであり、39
は同じく内輪を押さえるカラーである。一方の端軸32に
は、前記反転胴13側の前記回動ギア40と噛み合う倍径胴
ギア41がボルト42によって固定されておりさらに倍径胴
ギア41と端軸32とは、ボルト43で引き寄せられたシュパ
ンリング44によって固定されている。また他方の端軸33
側にも軸受押え45とカラー46とが設けられている。そし
て、前述したように、回動ギア40は反転胴13側で隣接す
る固定ギアと固定されていて回転が伝達されており、固
定ギアと回動ギア40との固定を解くことにより、反転胴
13と倍径胴12との位相調節が可能となるように構成され
ている。1 and 2 show an embodiment of a suction member fixing device according to the present invention. FIG. 1 is a cross-sectional view of a double-diameter cylinder in which this is implemented, and FIG. 2 is a cross-sectional view taken along line AA of FIG. is there. The cylinder arrangement, the schematic configuration of each cylinder, the printing operation, and the like have been described with reference to FIGS. 3 and 4. Therefore, a detailed description thereof will be omitted, and the following description will be made when necessary. In the figure, the double-diameter cylinder 12 is provided with a cylindrical body main body 31 having a casting space portion, and end shafts 32, 33 integrally formed concentrically at both ends thereof. 32,33
Are rotatably supported by the frames 36 on both sides via rolling bearings 35 fitted in the bearing case 34. 37,38
Is a bearing retainer that holds the outer ring of the rolling bearing 35, and
Is also a color that holds down the inner ring. A double-diameter body gear 41 that meshes with the rotating gear 40 on the side of the reversing body 13 is fixed to one of the end shafts 32 by a bolt 42, and the double-diameter body gear 41 and the end shaft 32 are connected by a bolt 43. It is fixed by the drawn Spann ring 44. The other end shaft 33
A bearing retainer 45 and a collar 46 are also provided on the side. Then, as described above, the rotation gear 40 is fixed to the fixed gear adjacent to the reversing cylinder 13 side and the rotation is transmitted, and by releasing the fixation between the fixed gear and the rotation gear 40, the reversing cylinder 40 is released.
It is configured so that the phase adjustment between 13 and the double-diameter cylinder 12 is possible.

両端軸32,33の大径部32a,33bには、正面視をちょうちん
形に形成された側板47が回動自在に嵌装されており、こ
れらの側板47は、胴本体31の軸心肉部31aと外周肉部31b
との端面に接することによって内方への移動を規制され
ている。そしてこの回動自在な側板47は後述する固定装
置によって胴本体31に固定される。両側の側板47の外周
部を円周方向へ２等分する箇所には、吸気管48が軸受49
を介して回動自在に軸支されており、また片側の側板47
に吸気管48の端部に近接して嵌着された端管50と、反対
側の側板47との間には、吸気管48と平行する元管51が支
架されている。52は、元管51側に固定されて元管51と吸
気管48とを中央部で連結するブランケットであって、吸
気管48を回動自在に支持しており、このブランケット52
には、元管51と吸気管48とを連通させる連通孔53が設け
られている。54は片側のフレーム36に固定された環状の
固定バルブであって図示しない吸引エア源としての真空
ポンプとの間をホース等で接続されており、その端面に
は、前記端管50に装着された円弧状のロータリバルブ55
が摺接されている。そして、固定バルブ54とロータリバ
ルブ55および端管50には、元管51を真空ポンプと連通さ
せるエア通路56が設けられており、倍径胴12が回動する
と、ロータリバルブ55側のエア通路が固定バルブ54側の
円弧状エア通路と摺接して連通する所定のタイミング間
のみ元管51と連通孔53とを介して吸気管48内のエアが吸
引されるように構成されている。吸気管48には、これと
連通する吸口57を備えた吸着部材としての複数個の吸着
ヘッド58が軸方向に並列して割締め固定されており、吸
口57は胴本体31の周面に開口されている。そして、吸着
ヘッド58は、胴本体31の外周肉部31bに円周方向へ所定
角度だけ延設された溝59に係入されており、側板47と胴
本体31との固定を解いて側板47を回動させることによ
り、前記爪19,20と吸着ヘッド58との円周方向の位相が
調節されるように構成されている。吸気管48のロータリ
バルブ55側突出部に軸着されたころレバー60には、フレ
ーム36側の図示しないカムのカム面に対応するカムフォ
ロア61が枢着されており、倍径胴12の１回転中にカムフ
ォロア61がカムのカム面に対接すると、ころレバー60を
介し吸気管48が所定角度だけ回動して吸着ヘッド58が溝
59内で移動し、吸口57で吸着される紙尻を天地方向へ引
っ張って緊張させるように構成されている。第２図に全
体を符号62で示すものは、カムフォロア61をカム面に圧
接させるばね機構であって、吸気管48の反ロータリバル
ブ55側突出端に割締め固定されたレバー63と、このレバ
ー63の遊端部に枢着されて他端を側板47側のポスト64に
挿入されたばね軸65と、このばね軸65上に介装された圧
縮コイルばね66とで形成されており、カムと協働して前
記吸着ヘッドの回動を行うように構成されている。67は
吸気管48の回動を潤滑するグリス用のグリスニップルで
あり、また68は図示しない印刷切替装置の駆動用に使用
するピンである。Side plates 47 formed into a lantern shape when viewed from the front are rotatably fitted to the large-diameter portions 32a and 33b of the both end shafts 32 and 33. Portion 31a and outer peripheral wall portion 31b
It is restricted to move inward by touching the end face of. The rotatable side plate 47 is fixed to the body 31 by a fixing device described later. An intake pipe 48 is provided with a bearing 49 at a location where the outer circumference of the side plates 47 on both sides is divided into two equal parts in the circumferential direction.
Is rotatably supported via a side plate 47 on one side.
A source pipe 51 parallel to the intake pipe 48 is supported between the end pipe 50 fitted in close proximity to the end of the intake pipe 48 and the side plate 47 on the opposite side. Reference numeral 52 is a blanket that is fixed to the main pipe 51 side and connects the main pipe 51 and the intake pipe 48 at the central portion, and rotatably supports the intake pipe 48.
A communication hole 53 that connects the source pipe 51 and the intake pipe 48 is provided in the. 54 is an annular fixed valve fixed to the frame 36 on one side, and is connected to a vacuum pump (not shown) as a suction air source by a hose or the like, and the end face thereof is attached to the end pipe 50. Circular arc rotary valve 55
Are in sliding contact with each other. The fixed valve 54, the rotary valve 55, and the end pipe 50 are provided with an air passage 56 for communicating the source pipe 51 with the vacuum pump. When the double-diameter cylinder 12 rotates, the air passage on the rotary valve 55 side is provided. The air in the intake pipe 48 is sucked through the main pipe 51 and the communication hole 53 only at a predetermined timing when the sliding contact with the arcuate air passage on the fixed valve 54 side is established. A plurality of suction heads 58 as suction members having suction ports 57 communicating with the suction pipes 48 are axially juxtaposed and fixed in parallel, and the suction ports 57 are opened on the peripheral surface of the body 31. Has been done. The suction head 58 is engaged with a groove 59 extending in the circumferential direction at a predetermined angle in the outer peripheral wall portion 31b of the body 31, and the side plate 47 is released by fixing the side plate 47 and the body 31 to each other. By rotating, the phases of the claws 19 and 20 and the suction head 58 in the circumferential direction are adjusted. A cam follower 61 corresponding to the cam surface of a cam (not shown) on the frame 36 side is pivotally mounted on a roller lever 60 axially mounted on the protrusion of the intake pipe 48 on the rotary valve 55 side. When the cam follower 61 comes into contact with the cam surface of the cam, the intake pipe 48 rotates by a predetermined angle via the roller lever 60, and the suction head 58 moves into the groove.
It is configured to move in 59 and pull the paper tail that is adsorbed by the mouthpiece 57 in the vertical direction to make it tense. The reference numeral 62 in FIG. 2 indicates a spring mechanism for pressing the cam follower 61 against the cam surface. The lever 63 is fixed to the protruding end of the intake pipe 48 on the side opposite to the rotary valve 55, and the lever 63. A spring shaft 65 pivotally attached to the free end portion of 63 and having the other end inserted into the post 64 on the side plate 47 side, and a compression coil spring 66 interposed on this spring shaft 65 are formed as a cam. The suction head is configured to rotate in cooperation with each other. 67 is a grease nipple for lubricating the rotation of the intake pipe 48, and 68 is a pin used for driving a print switching device (not shown).

次に、吸着ヘッド58を位相調節後、側板47を介して胴本
体31側に固定する吸着部材固定装置について説明する。
すなわち、両端軸32,33の基部である大径部32a,33bに
は、押え棒孔69dが直径方向に貫通して設けられてお
り、この押え棒孔69dには、主要部が丸棒状の押え棒69
が挿入されている。この押え棒69は、組付けの関係上、
本体69aとその両端部に着脱自在にボルト止めされた一
対の押え69bとで形成されており、本体69aの中央部に
は、軸孔69cが穿設されている。また、胴本体31の中心
肉部31aと両端軸32,33との中心部にも軸孔31c,32c,33a
がそれぞれ穿設されており、これら胴全長にわたる軸孔
33a,69c,31c,69c,32cには、固定軸70が貫通して挿入さ
れている。この固定軸70は、一方のねじ部に螺合された
ナット71とカラー72とで一方への移動を規制されている
とともに、端部のねじ部に螺合されたねじ部材73には、
角孔74aを有するナット74が固定されており、ナット74
は倍径胴ギア41にボルト止めされたプレート75によって
軸方向への移動を規制されている。そして、ねじ部材73
と押え棒69との間には押え管76と、一対の座金77と、そ
の間の複数個の皿ばね78およびスラストベアリング79が
介装されており、こうすることにより、ナット74の角孔
74aにスパナを挿入してナット74を締めると、ねじ部材7
3のねじ作用により固定軸70が引き寄せられて、押え69b
と側板47および胴本体31の端面との間に面圧がかかり、
側板47と胴本体31とがこの面圧によって固定されるよう
に構成されている。なお、本実施例においては、押え69
bと側板47の押え面との間に、かまぼこ形の面圧調節部
材80が介挿されており、面圧によって押え棒69がたわん
でも面圧調整部材80の円弧面でこれを吸収して面圧が一
定になるように構成されている。81は、ナット74の六角
頭周平面に対接するボールとこのボールを押すばね部材
とを備えたクリック機構であって、ナット74を60゜回動
させるごとにその回動を軽く係止するように構成されて
いる。なお、第２図において符号82で示すものは前述し
た爪19（20）と吸着ヘッド58との位相調整時に用いられ
て側板47と胴本体31とがつれ回りするように軽く一体化
するばね部材である。Next, a suction member fixing device for fixing the suction head 58 to the body 31 side via the side plate 47 after adjusting the phase will be described.
That is, the large-diameter portions 32a, 33b, which are the bases of the both-end shafts 32, 33, are provided with presser bar holes 69d penetrating in the diametrical direction, and the presser bar holes 69d have a round bar-shaped main part. Presser bar 69
Has been inserted. This presser bar 69 is
The main body 69a and a pair of pressers 69b detachably bolted to both ends thereof are formed, and a shaft hole 69c is formed in the center of the main body 69a. Further, the shaft holes 31c, 32c, 33a are also formed in the center portions of the center body portion 31a of the body 31 and the both end shafts 32, 33.
Are bored respectively, and the shaft holes extend over the entire length of these trunks.
The fixed shaft 70 penetrates and is inserted in 33a, 69c, 31c, 69c, 32c. The fixed shaft 70 is restricted from moving to one side by a nut 71 and a collar 72 screwed into one screw portion, and the screw member 73 screwed into an end screw portion is
The nut 74 having the square hole 74a is fixed, and the nut 74
Is restricted from moving in the axial direction by a plate 75 bolted to the double-diameter body gear 41. Then, the screw member 73
A presser tube 76, a pair of washers 77, and a plurality of disc springs 78 and thrust bearings 79 therebetween are interposed between the presser bar 69 and the presser bar 69.
Insert a spanner into 74a and tighten the nut 74 to
The fixed shaft 70 is pulled by the screw action of 3, and the presser foot 69b
And surface pressure is applied between the side plate 47 and the end surface of the body 31.
The side plate 47 and the body 31 are configured to be fixed by this surface pressure. In this embodiment, the presser foot 69
A semi-cylindrical surface pressure adjusting member 80 is interposed between b and the pressing surface of the side plate 47, and even if the pressing rod 69 bends due to the surface pressure, the arc surface of the surface pressure adjusting member 80 absorbs this. The surface pressure is configured to be constant. Reference numeral 81 denotes a click mechanism including a ball that is in contact with the hexagonal head circumferential plane of the nut 74 and a spring member that pushes the ball, and locks the rotation lightly every time the nut 74 is rotated 60 °. Is configured. A reference numeral 82 in FIG. 2 is a spring member used for adjusting the phase of the claw 19 (20) and the suction head 58, which is lightly integrated so that the side plate 47 and the body main body 31 rotate together. Is.

以上のように構成された倍径胴装置の動作を説明する。
第４図に基づいて説明した両面刷動作において、倍径胴
12の爪19（20）がくわえた紙30の紙尻が両胴11,12の対
接点を離れると、ロータリバルブ55が固定バルブ54と対
接し、エア通路56、元管51、連通孔53および吸気管48を
経て吸着ヘッド58の吸口57から大気を吸引するので、紙
30の紙尻が吸口57に吸着される。さらに各胴が回転する
と、カムフォロア61がカム面に対接し、圧縮コイルばね
66の弾発力に抗してころレバー60を回動させるので、吸
気管48が回動し、吸着ヘッド58が溝59内で移動して紙30
を緊張させる。この状態で紙尻が反転胴13の爪（Ｂ）28
に対向すると、爪（Ｂ）28が紙尻をくわえるとともに、
ロータリバルブ55が固定バルブ54から離れ、吸引が停止
して紙尻が吸着ヘッド58による吸着を解かれるので、紙
30は反転しながら搬送される。その他の両面刷動作なら
びに片面刷動作については第３図および第４図に基づい
て前述したのでその説明を省略する。The operation of the double diameter barrel device configured as described above will be described.
In the double-sided printing operation described with reference to FIG.
When the trailing edge of the paper 30 with the 12 nails 19 (20) held away from the counter contact between the bodies 11 and 12, the rotary valve 55 contacts the fixed valve 54, and the air passage 56, the main pipe 51, and the communication hole 53. Since the air is sucked from the suction port 57 of the suction head 58 through the suction pipe 48 and the suction pipe 48, the paper
The paper tail of 30 is adsorbed to the mouthpiece 57. When each cylinder further rotates, the cam follower 61 contacts the cam surface and the compression coil spring
Since the roller lever 60 is rotated against the elastic force of 66, the intake pipe 48 is rotated, and the suction head 58 moves in the groove 59 to move the paper 30.
Make you nervous. In this state, the bottom of the paper is the claw (B) 28
When facing, the nail (B) 28 holds the bottom of the paper and
The rotary valve 55 separates from the fixed valve 54, suction stops, and the bottom of the paper is released from the suction by the suction head 58.
30 is conveyed while being reversed. The other double-sided printing operation and the single-sided printing operation have been described above with reference to FIGS. 3 and 4, and the description thereof will be omitted.

そして、片面刷と両面刷との切替および紙サイズの変更
時には、ナット74の角孔74aにスパナを挿入してナット7
4を弛め方向に回動させると、ねじ部材73のねじ作用に
よって固定軸70がねじ部材73から抜け出すので、押え69
bによる面圧が解かれ、側板47と胴本体との面圧による
固定が解かれる。そこで回動ギア40の固定を解いてこれ
を図示しないギア装置を介して回動させると、ギア41が
回動して胴本体31が回動し、始めは側板47もつれ回りす
るが、吸着ヘッド58が片面刷または両面刷の所定位置に
達すると、図示しない装置によって側板47が停止し、こ
のあとは胴本体31のみが回動するので、紙サイズに対応
した位置で停止させる。そして、ナット74を締める方向
に回動させると、ねじ部材73のねじ作用によって固定軸
70がねじ部材73のねじ孔に螺入されるので、反対側の押
え棒69が引き寄せられ、両側の押え69bによる面圧が面
圧調整部材80を介して側板47に加えられ、側板47と胴本
体31とが強固に固定される。この場合、本実施例におい
ては面圧調整部材80を設けたことにより、面圧が高圧に
なり過ぎて押え棒69がたわんだ場合でも、押え69bの変
形が面圧調整部材69bの円弧面で吸収されるので、押え6
9bが変形してしまうことがなく、面圧が常に一定にな
る。また運転中、気温の上昇により固定軸70が伸びるこ
とがあっても、本実施例では皿ばね78を設けたことによ
りこの伸びが吸収され、側板47と胴本体31との固定が弛
むことがない。Then, when switching between single-sided printing and double-sided printing and changing the paper size, insert a spanner into the square hole 74a of the nut 74 and
When 4 is rotated in the loosening direction, the fixed shaft 70 is pulled out from the screw member 73 by the screw action of the screw member 73.
The surface pressure due to b is released, and the fixation between the side plate 47 and the trunk body due to the surface pressure is released. Therefore, when the rotation gear 40 is unfixed and rotated through a gear device (not shown), the gear 41 rotates, the body 31 rotates, and the side plate 47 is entangled at first, but the suction head When 58 reaches a predetermined position for single-sided printing or double-sided printing, the side plate 47 is stopped by a device (not shown), and thereafter only the body 31 of the cylinder rotates, so that the side plate 47 is stopped at a position corresponding to the paper size. Then, when the nut 74 is rotated in the tightening direction, the fixed shaft is generated by the screw action of the screw member 73.
Since 70 is screwed into the screw hole of the screw member 73, the presser bar 69 on the opposite side is pulled, the surface pressure by the pressers 69b on both sides is applied to the side plate 47 via the surface pressure adjusting member 80, and the side plate 47 and The body 31 is firmly fixed. In this case, in the present embodiment, by providing the surface pressure adjusting member 80, even if the surface pressure becomes too high and the presser bar 69 bends, the presser 69b is deformed by the arc surface of the surface pressure adjusting member 69b. Since it is absorbed, presser foot 6
9b is not deformed and the surface pressure is always constant. Further, even if the fixed shaft 70 expands due to a rise in temperature during operation, the expansion is absorbed by the disc spring 78 provided in the present embodiment, and the fixation between the side plate 47 and the body 31 may be loosened. Absent.

〔発明の効果〕〔The invention's effect〕

以上の説明により明らかなように、本発明によれば反転
機構付枚葉印刷機において、一対の支持部材を胴本体の
両端軸のそれぞれに回動自在に嵌装してその胴本体側の
側面を胴本体の端面に添接させるとともに、胴本体と両
端軸との軸方向を貫通する軸と、フレームの外側で端軸
端面からの操作で軸を介して移動し、この移動により支
持部材の胴本体と反対側の側面に添接し、支持部材を胴
本体の端面に押し付けるようにして支持部材を胴本体に
固定する固定部材とを設けたことにより、周囲が開放さ
れた片側のフレーム外からねじ部材を回動させるだけで
吸着部材の支持部材を胴本体に固定することができるの
で、従来フレームの内側２箇所で行っていたものと比較
して作業性が大幅に向上し、労力の軽減と作業時間の短
縮を計ることができる。As is apparent from the above description, according to the present invention, in the sheet-fed printing press with the reversing mechanism, the pair of supporting members are rotatably fitted to the respective end shafts of the body and the side surface of the body side. Is attached to the end face of the body, and the shaft that penetrates the body and the both end shafts in the axial direction is moved through the shaft by an operation from the end shaft end face on the outside of the frame. By providing a fixing member that is attached to the side surface on the side opposite to the trunk body and presses the support member against the end surface of the trunk body to fix the support member to the trunk body, from the outside of the frame on one side where the periphery is open. Since the support member of the suction member can be fixed to the body of the body simply by rotating the screw member, workability is greatly improved compared to what was conventionally done at two places inside the frame, and labor is reduced. And work time can be reduced. That.

【図面の簡単な説明】[Brief description of drawings]

第１図および第２図は本発明に係る反転機構付枚葉印刷
機の吸着部材固定装置の実施例を示し、第１図はこれを
実施した倍径胴の縦断面図、第２図は第１図のAA断面
図、第３図は片面刷動作を説明するために示す反転機構
付枚葉印刷機の胴配列図、第４図は両面刷動作を説明す
るために示す反転機構付枚葉印刷機の胴配列図である。 12……倍径胴、31……胴本体、31c,32c,33b……軸孔、3
2,33……端軸、36……フレーム、47……側板、48……吸
気管、58……吸着ヘッド、69……押え棒、69b……押
え、70……固定軸、73……ねじ部材、74……ナット。1 and 2 show an embodiment of a suction member fixing device of a sheet-fed printing press with a reversing mechanism according to the present invention. FIG. 1 is a longitudinal sectional view of a double-diameter cylinder in which this is implemented, and FIG. 1 is a sectional view taken along the line AA in FIG. 1, FIG. 3 is a cylinder arrangement diagram of a sheet-fed printing press with a reversing mechanism shown for explaining a single-sided printing operation, and FIG. 4 is a sheet with a reversing mechanism shown for explaining a double-sided printing operation. FIG. 3 is a cylinder array diagram of the leaf printing machine. 12 …… double diameter cylinder, 31 …… cylinder body, 31c, 32c, 33b …… shaft hole, 3
2,33 …… End axis, 36 …… Frame, 47 …… Side plate, 48 …… Intake pipe, 58 …… Suction head, 69 …… Presser bar, 69b …… Presser, 70 …… Fixed axis, 73 …… Screw member, 74 ... Nut.

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】両側のフレームに両端軸を軸支された胴本
体と、前記フレームの内側に位置して前記各両端軸にそ
れぞれ支持された一対の支持部材と、前記胴本体の外周
空間部内を軸方向に貫通して前記両端軸の支持部材間に
支架された吸着部材とを有する倍径胴装置を備えた反転
機構付枚葉印刷機において、前記一対の支持部材を前記
両端軸のそれぞれに回転自在に嵌装してその胴本体側の
側面を前記胴本体の端面に添接させるとともに、前記胴
本体と両端軸との軸方向を貫通する軸と、前記フレーム
の外側で前記一方の端軸端面からの操作で前記軸を介し
て移動し、この移動により前記支持部材の胴本体と反対
側の側面に添接し、支持部材を胴本体の端面に押し付け
るようにして支持部材を胴本体に固定する固定部材とを
設けたことを特徴とする反転機構付枚葉印刷機の吸着部
材固定装置。1. A body main body whose both end shafts are axially supported by frames on both sides, a pair of support members located inside the frame and supported by the respective both end shafts, and an outer peripheral space portion of the body main body. In a sheet-fed printing press with a reversing mechanism, which has a double-diameter cylinder device having an adsorbing member pierced axially through the supporting members of the both end shafts, the pair of supporting members are respectively attached to the both end shafts. Is rotatably fitted to the side surface of the body side of the body and is abutted against the end surface of the body, and a shaft penetrating in the axial direction of the body and both end shafts, and one of the one outside the frame. The shaft is moved through the shaft by an operation from the end face, and by this movement, the support member is abutted against the side surface of the support member opposite to the body body, and the support member is pressed against the end surface of the body body to support the body body. It is characterized by having a fixing member for fixing to Suction member fixing device with reversing mechanism sheet-to.