JPS61120749A - Suction paper-drawing device for sheet fed rotary press - Google Patents
Suction paper-drawing device for sheet fed rotary pressInfo
- Publication number
- JPS61120749A JPS61120749A JP24260984A JP24260984A JPS61120749A JP S61120749 A JPS61120749 A JP S61120749A JP 24260984 A JP24260984 A JP 24260984A JP 24260984 A JP24260984 A JP 24260984A JP S61120749 A JPS61120749 A JP S61120749A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- cylinder
- reversing
- transfer
- suction
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F21/00—Devices for conveying sheets through printing apparatus or machines
- B41F21/10—Combinations of transfer drums and grippers
Landscapes
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
Abstract
Description
【発明の詳細な説明】
発明の目的
（産業上の利用分野）
この発明は片面及び両面印刷可能な枚葉輪転印刷機に係
り、特に両面印刷時に渡し胴上の枚葉紙を吸着捕捉し伸
張力を作用させることによって枚葉紙のたるみを除去す
るように構成した吸着紙引き装置に関するものである。Detailed Description of the Invention Object of the Invention (Industrial Application Field) The present invention relates to a sheet-fed rotary printing press capable of single-sided and double-sided printing, and particularly to a sheet-fed rotary printing press capable of printing on one side and both sides. The present invention relates to a suction paper pulling device configured to remove slack from sheets by applying force.
（従来の技術）
一般に、この種の枚葉輪転印刷機において片面も
印刷を行う場合には、第１０図に示すように、ま
ず供給層ｔｏｏＪ：の枚葉紙Ｐは供給層１００と渡し胴
１０１との接点位置においてその前線が渡し胴１０１の
把持爪１０２に引渡される。次いで、渡し胴１０１上の
枚葉紙Ｐは渡し胴１０１と反転胴１０８との接点位置に
おいて反転胴１０３の反転把持爪１０４によりその前縁
が把持され、反転胴１０３の回転に伴い渡し胴１０１か
ら反転胴１０３上に引渡される。そして、反転胴１０３
と圧胴１０５との接点位置において枚葉紙Ｐの前縁が圧
胴１０５の把持爪１０６により把持され、その圧胴１０
５上において枚葉紙Ｐの片面に多色刷りが行われる。(Prior art) Generally, in this type of sheet-fed rotary printing press, single-sided printing is also possible.
In the case of printing, as shown in FIG. be done. Next, the front edge of the sheet P on the transfer cylinder 101 is gripped by the reversing gripping claw 104 of the reversing cylinder 103 at the contact point between the transferring cylinder 101 and the reversing cylinder 108, and as the reversing cylinder 103 rotates, the sheet P is held by the reversing cylinder 101. From there, it is transferred onto the reversing cylinder 103. Then, the reversing cylinder 103
The front edge of the sheet P is gripped by the gripping claw 106 of the impression cylinder 105 at the contact point between the impression cylinder 105 and the impression cylinder 105.
5, multicolor printing is performed on one side of the sheet P.
一方、両面印刷時には第１１図に示すように、供給層１
００から渡し胴１０１上に供給された枚葉紙Ｐは、その
前縁が前記把持爪１０２により把持されかつ後縁が捕捉
部材１０７により吸着捕捉される。次いで、渡し胴１０
１の回転に伴い一旦枚葉紙Ｐの前縁は渡し胴１０１と反
転胴１０３との接点位置を通過し、枚葉紙Ｐの後縁がそ
の接点位置に達したときに前記捕捉部材１０７の作動が
停止され、解放された枚葉紙Ｐの後縁は反転胴１０３の
前記反転把持爪１０４に引き渡される。そして、反転胴
１０３の回転に伴い同図に鎖線で示すように、反転把持
爪１０４が前記把持位置からほぼ１８０度の角度で反転
されて枚葉紙Ｐが反転胴１０３上で裏返しされる。続い
て、この状態で反転胴１０３から圧胴１０５上へ移送さ
れ、その圧胴１０５上にて裏面印刷が行われる。On the other hand, during double-sided printing, as shown in FIG.
The leading edge of the sheet P fed onto the transfer drum 101 from 00 is gripped by the gripping claws 102, and the trailing edge is suctioned and captured by the gripping member 107. Next, the transfer drum 10
1, the leading edge of the sheet P once passes the contact point between the transfer cylinder 101 and the reversing cylinder 103, and when the trailing edge of the sheet P reaches the contact point, the catching member 107 The operation is stopped and the trailing edge of the released sheet P is delivered to the reversing gripper 104 of the reversing cylinder 103. Then, as the reversing cylinder 103 rotates, the reversing gripping claw 104 is reversed at an angle of approximately 180 degrees from the gripping position, and the sheet P is turned over on the reversing cylinder 103, as shown by the chain line in the figure. Subsequently, in this state, the sheet is transferred from the reversing cylinder 103 onto the impression cylinder 105, and printing on the back side is performed on the impression cylinder 105.
ところで、通常前記渡し胴１０１上の枚葉紙Ｐには、供
給層１００の前方に配置された図示しない印刷胴におけ
る先行印刷に伴ってたるみが発生しており、前記片面印
刷時には枚葉紙Ｐの前縁が゛各把持爪１０２，１０４，
１０６に順次引き渡されるのでそのたるみによって把持
位置がずれるというおそれはないが、両面印刷の場合に
は渡し胴１０１上の枚葉紙Ｐの後縁が反転胴１０３の反
転把持爪１０４に引き渡されるため、枚葉紙Ｐのたるみ
によって反転把持爪１０４の把持位置が不正確となり、
そのままの状態で圧胴１０５に移送して裏面印刷を行う
と先行印刷との間に見当ずれが生じるという問題がある
。Incidentally, the sheet P on the transfer cylinder 101 normally has slack due to previous printing on a printing cylinder (not shown) disposed in front of the supply layer 100, and during the single-sided printing, the sheet P The front edge of each gripping claw 102, 104,
106, so there is no fear that the gripping position will shift due to the slack. However, in the case of double-sided printing, the trailing edge of the sheet P on the transfer cylinder 101 is transferred to the reversing gripping claw 104 of the reversing cylinder 103. , the gripping position of the reversing gripping claws 104 becomes inaccurate due to slack in the sheet P;
If the paper is transferred as it is to the impression cylinder 105 and printed on the back side, there is a problem that misregistration occurs between the paper and the previous printing.
そこで、従来、この問題に対処するために例えば昭和５
４年９月２９日公告の特公昭５４−３０３２３号公報に
は、複数の回動式吸引部材を有する吸引装置を渡し胴上
の枚葉紙後縁に沿って設け、両面印刷時には各回動吸引
部材の回動運動により枚葉紙を渡し胴の回転方向とは逆
向きに伸張するようにした吸引型紙引き装置が示されて
いる。又、昭和５６年１２月８日公告の特公昭５６−５
１９０８号公報には、倍胴シリンダーの局面上を移動す
るように複数の紙引きコロを配設するとともに、各紙引
きコロに対し倍胴シリンダーの外側から圧接及び離隔可
能な後端押えコロを設け、両面印刷時には紙引きコロに
後端押えコロを圧接配置して枚葉紙の後縁部を把持し、
この状態において両コロを斜め後方へ移動させることに
より枚葉紙に引張力を作用させてたるみを除去するよう
に構成した把持型紙引き装置が開示されている。Therefore, in order to deal with this problem, for example, in the Showa 5
According to Japanese Patent Publication No. 54-30323 published on September 29, 1987, a suction device having a plurality of rotary suction members is installed along the trailing edge of the sheet on the transfer cylinder, and during double-sided printing, each rotary suction member A suction-type paper pulling device is shown in which the sheet is stretched in a direction opposite to the direction of rotation of the transfer cylinder by means of a rotational movement of a member. Also, the special public notice 1982-5 published on December 8, 1982.
Publication No. 1908 discloses that a plurality of paper pulling rollers are arranged to move on the surface of a double body cylinder, and a trailing end presser roller that can be pressed against and separated from the outside of the double body cylinder is provided for each paper pulling roller. During double-sided printing, a trailing edge presser roller is placed in pressure contact with the paper pulling roller to grip the trailing edge of the sheet.
A grasping paper pulling device has been disclosed which is configured to remove slack by applying a tensile force to the sheet by moving both rollers diagonally backward in this state.
（発明が解決しようとする問題点）
ところが、これらの従来構成において前者の吸引型紙引
き装置の場合には、回動式吸引部材の円弧運動によって
枚葉紙が伸張されるため、同吸引部材の駆動系における
構成が複雑となるばかりでなく、′同部材の回動半径を
大きく設定して大型化しないと所要の伸張量が得られな
いという問題点があった。又、後者の把持型紙引き装置
の場合には、紙引きコロと後端押えコロとの圧接によっ
て枚葉紙に把持跡が残ったり騒音が発生したりするとい
う不都合があり、しかも後端押えコロが倍胴シリンダの
局面から突出しているので調整ミス時に隣接層に接触し
て印刷機の運転に支障を来たすという問題点もあった。(Problems to be Solved by the Invention) However, in the case of the former suction-type paper pulling device in these conventional configurations, the sheet is stretched by the circular motion of the rotary suction member, so the suction member Not only does the structure of the drive system become complicated, but there is also the problem that the required amount of extension cannot be obtained unless the rotation radius of the member is set large and the size is increased. In addition, in the case of the latter gripping type paper pulling device, there is an inconvenience that gripping marks are left on the sheet and noise is generated due to pressure contact between the paper pulling roller and the trailing edge presser roller. Since it protrudes from the surface of the double cylinder, there is also the problem that in the event of an error in adjustment, it will come into contact with an adjacent layer, causing trouble in the operation of the printing press.
発明の構成
（問題点を解決するための手段）
この発明は上記問題点に着目してなされたものであり、
その解決手段は枚葉紙Ｐの後縁部を吸着捕捉する捕捉部
材２０が渡し胴６上の枚葉紙Ｐの後縁部中央を挾む少な
くとも二位置に配置されるとともに、それぞれに渡し胴
６のほぼ周面上に位置する吸着部３７が設けられている
ことと、前記へ
渡し胴６の軸線と平行に延びる軸線を有し、前記各捕捉
部材２０をその軸線とで回動及びスライド可能に支持す
る支持部材２１と、その支持部材２■に作動連結され、
渡し胴６の回転に伴って各捕捉部材２０を回動させて前
記吸着部３７を渡し胴６の回転方向とは逆の周方向に沿
って移動させる周方向移動機構３９．４４と、その周方
向移動機構８９．４４に作動連結され、各捕捉部材２０
を前記回動動作に伴い支持部材２１Ｊ：でスライドさせ
て、前記吸着部８７を渡し胴６の軸方向外側に向けて移
動させる軸方向移動機構５１，５３，５４．５５とを備
え、前記両面印刷時には渡し胴６上の枚葉紙Ｐに対し前
記吸着部３７の二つの移動方向を合成した方向に沿う伸
張力を作用させるように構成したものである。Structure of the invention (means for solving the problem) This invention was made by focusing on the above problem,
The solution is that the capturing members 20 that suction and capture the trailing edge of the sheet P are arranged at at least two positions sandwiching the center of the trailing edge of the sheet P on the transfer drum 6, and 6, and has an axis extending parallel to the axis of the transfer cylinder 6, so that each of the capturing members 20 can be rotated and slid about the axis. operably connected to a support member 21 that can support the support member 2;
a circumferential movement mechanism 39.44 that rotates each capture member 20 as the transfer drum 6 rotates and moves the suction section 37 along the circumferential direction opposite to the rotational direction of the transfer drum 6; operatively coupled to the directional movement mechanism 89.44, each capture member 20
and an axial movement mechanism 51, 53, 54, 55 for sliding the suction part 87 axially outward of the transfer drum 6 by sliding it on the support member 21J with the rotational movement, During printing, a stretching force is applied to the sheet P on the transfer cylinder 6 in a direction that is a combination of the two moving directions of the suction section 37.
（作用）
従って、この発明の枚葉輪転印刷機の吸着紙引き装置に
おいては、両面印刷時に前記各捕捉部材２０により渡し
胴６上の枚葉紙Ｐの後縁部が把持跡が残ったり騒音が発
生したりすることなく確実に捕捉され、その捕捉状態に
おいて各捕捉部材２０の吸着部３７が周方向移動機構８
９．４４の作動に伴って渡し胴６の回転方向とは逆の周
方向に沿って移動されるとともに、軸方向移動機構５１
゜５３．５４．５５の作動に伴って渡し胴６の軸方向外
側に向けて移動されることにより、枚葉紙Ｐがそれらの
二つの移動方向を合成した方向に沿って大きく伸張され
て枚葉紙Ｐのたるみが確実に除去される。(Function) Therefore, in the suction paper pulling device of the sheet-fed rotary printing press of the present invention, during double-sided printing, the trailing edge of the sheet P on the transfer cylinder 6 is gripped by each of the capturing members 20, leaving a gripping mark and causing noise. The suction portion 37 of each trapping member 20 moves toward the circumferential direction moving mechanism 8 in the captured state.
Along with the operation of 9.44, the transfer drum 6 is moved along the circumferential direction opposite to the rotating direction, and the axial movement mechanism 51
By moving the transfer cylinder 6 toward the outside in the axial direction with the operation of ゜53, 54, 55, the sheet P is greatly stretched along the direction that combines these two moving directions. The slack in the paper P is reliably removed.
（実施例）
以下、この発明を具体化した一実施例を図面に基づいて
詳細に説明する。(Example) Hereinafter, an example embodying the present invention will be described in detail based on the drawings.
第２図に示すように、枚葉輪転印刷機の機枠内には同一
の直径を有する供給層ｌと反転胴２とが所定の間隔をお
いてそれぞれ回転可能に配設され、供給層１の周面上に
は枚葉紙Ｐの前縁を把持する把持爪３が開閉可能に設け
られ、又、反転胴２の周面上には片面印刷時に枚葉紙Ｐ
の前縁を把持するとともに両面印刷時には枚葉紙Ｐの後
縁を把持して枚葉紙Ｐを表裏反転するための反転機構の
一部を構成する反転爪４が反転回動及び開閉可能に設け
られている。なお、両面印刷時における反転胴２の反転
作用については前述した従来の技術において第１１図に
基づいて説明した作用と同様であり、さらに詳しい反転
機構の構成と作用についてはこの出願人が昭和５９年６
月２１日に出願した特願昭５９−１２８２９９号の明細
書並びに図面を参照されたい。又、前記供給層１の前方
と反転胴２の後方とには、枚葉輪転印刷機の枚葉紙移送
機構並びに印刷機構を構成する複数の図示しない回転胴
がそれぞれ連続して配設されているが、公知技術につき
それらの説明を省略する。As shown in FIG. 2, a supply layer 1 and a reversing cylinder 2 having the same diameter are rotatably arranged at a predetermined interval in the frame of a sheet-fed rotary printing press. A gripping claw 3 for gripping the leading edge of the sheet P is provided on the circumferential surface of the reversing cylinder 2 so as to be openable and closable.
The reversing claw 4, which constitutes a part of the reversing mechanism for gripping the front edge of the sheet P and for reversing the sheet P by gripping the trailing edge of the sheet P during double-sided printing, is capable of reversing rotation and opening/closing. It is provided. The reversing action of the reversing cylinder 2 during double-sided printing is similar to the action explained based on FIG. Year 6
Please refer to the specification and drawings of Japanese Patent Application No. 59-128299 filed on May 21st. Further, in front of the supply layer 1 and behind the reversing cylinder 2, a plurality of rotary cylinders (not shown) constituting a sheet transport mechanism and a printing mechanism of a sheet-fed rotary printing press are successively arranged. However, since these are known techniques, their explanation will be omitted.
前記供給層１と反転胴２との間にはそれらの２倍の直径
を有する渡し胴６が配置され、第１図に示すようにその
軸７の左右両端部は軸受８を介して左右のフレーム９に
対し回転可能に支持されている。軸７上には複数の固定
セグメントアーム１０が所定間隔をおいて側設されると
ともに、これらの固定セグメントアーム１０を左右両側
から挾むように一対の可動セグメントアーム１１が軸７
に対し回動調整可能に支持されている。そして、第２図
に示すように、固定及び可動セグメントアームｔｏ、ｔ
ｔにより渡し胴６には１８０度を隔てた位置に軸方向に
沿って延びる一対の凹所１３が設けられ、これらの凹所
１３により区画された渡し胴６の一対の局面は同一面積
の枚葉紙支持面、 １２となっていて、前
記両可動セグメントアーム１１の回動調整により枚葉紙
支持面１２の周方向の長さを枚葉紙Ｐの長さに応じて変
更できるようになっている。A transfer cylinder 6 having a diameter twice that of the supply layer 1 and the reversing cylinder 2 is disposed between the supply layer 1 and the reversing cylinder 2, and as shown in FIG. It is rotatably supported by the frame 9. A plurality of fixed segment arms 10 are provided on the shaft 7 at predetermined intervals, and a pair of movable segment arms 11 are mounted on the shaft 7 so as to sandwich these fixed segment arms 10 from both sides.
It is supported in a rotationally adjustable manner. Then, as shown in FIG. 2, the fixed and movable segment arms to, t
t, the transfer drum 6 is provided with a pair of recesses 13 extending along the axial direction at positions separated by 180 degrees, and the pair of surfaces of the transfer drum 6 partitioned by these recesses 13 have the same area. The length of the sheet support surface 12 in the circumferential direction can be changed according to the length of the sheet P by adjusting the rotation of both movable segment arms 11. ing.
前記各凹所１３の一側部内には軸７と平行に延びる回動
軸１４が配設され、この回動軸１４Ｊ：には複数の把持
爪１５が等間隔をおいて列設固定されている。そして、
第１図に示すように、回動軸１４の一端に固着したレバ
ー１６のカムフォロアー１７が一方のフレーム９の内側
面に固設した開閉カム１８に係合していて、渡し胴６の
回転に伴って回動軸１４が所定角度範囲内で往復回動さ
れることにより、各把持爪１５が前記枚葉紙支持面１２
の回転方向前縁にて開閉され、片面印刷時にへ
は供給層１と渡し１１６との接点位置において供給層１
の把持爪３から解放された枚葉紙Ｐの前縁が渡し胴６の
各把持爪１５により把持されるとともに、渡し胴６と反
転胴２との接点位置において各各把持爪１５から解放さ
れた枚葉紙Ｐの前縁が反転胴２の反転爪４に引き渡され
るようになっている。A rotation shaft 14 extending parallel to the shaft 7 is disposed in one side of each recess 13, and a plurality of gripping claws 15 are arranged and fixed at equal intervals on the rotation shaft 14J. There is. and,
As shown in FIG. 1, a cam follower 17 of a lever 16 fixed to one end of the rotation shaft 14 engages with an opening/closing cam 18 fixed to the inner surface of one frame 9, and the transfer cylinder 6 rotates. As the rotation shaft 14 is reciprocated within a predetermined angular range, each gripping claw 15 is attached to the sheet support surface 12.
During single-sided printing, the supply layer 1 is opened and closed at the front edge of the rotation direction of the supply layer 1 at the contact point between the supply layer 1 and the bridge 116.
The front edge of the sheet P released from the gripping claws 3 of the sheet P is gripped by each of the gripping claws 15 of the transfer cylinder 6, and is released from each of the gripping claws 15 at the point of contact between the transfer cylinder 6 and the reversing cylinder 2. The leading edge of the sheet P is delivered to the reversing claw 4 of the reversing cylinder 2.
一方、前記各凹所１３の他側部内には枚葉紙支持面１２
上の枚葉紙Ｐの後縁部を吸着捕捉する捕捉部材２０が前
記軸７に沿って複数配列されており、両面印刷時には渡
し胴６と反転胴２との接点位置においてこれらの捕捉部
材２０から解放された枚葉紙Ｐの後縁が反転胴２の反転
爪４に引き渡されるようになっている。On the other hand, inside the other side of each recess 13 is a sheet supporting surface 12.
A plurality of capturing members 20 for capturing the trailing edge of the upper sheet P by suction are arranged along the axis 7, and these capturing members 20 are arranged at the contact point between the transfer cylinder 6 and the reversing cylinder 2 during double-sided printing. The trailing edge of the sheet P released from the sheet P is delivered to the reversing claw 4 of the reversing cylinder 2.
そこで、この捕捉部材２０及びその周辺の機構の構・成
について詳述すると、前記凹所１３内には軸７と平行に
延びるように支持部材としての中空軸２１が配設され、
第１図に示すように、その左右両端部は前記両可動セグ
メントアーム１１に対し回動可能に支持されている。中
空軸２１の内部は左端が閉塞されかつ右端を開口２６と
した吸気通路２２となっていて、開口２６側端部は右側
の可動セグメントアー１−１１の外方へ露出している。Therefore, to explain in detail the configuration of the capturing member 20 and the mechanism around it, a hollow shaft 21 as a support member is disposed in the recess 13 so as to extend parallel to the shaft 7,
As shown in FIG. 1, both left and right ends thereof are rotatably supported by both the movable segment arms 11. The inside of the hollow shaft 21 is an intake passage 22 whose left end is closed and whose right end is an opening 26, and the end on the side of the opening 26 is exposed to the outside of the right movable segment arm 1-11.
前記軸７の右端部にはリング２３が挿着されねじ２７を
介して右側の可動セグメントアーム１１のボス部外面に
接合固着され、その一部に設けた孔２４内には中空軸２
１の露出端部が回動可能に挿入されている。A ring 23 is inserted into the right end of the shaft 7 and fixed to the outer surface of the boss portion of the right movable segment arm 11 via a screw 27.
The exposed end of 1 is rotatably inserted.
前記リング２３と右側の軸受８との間において軸７には
バルブ円盤２５が相対回動及びスライド可能に嵌挿され
、軸受８との間に介在させたばね２８の作用によって常
にリング２３に圧接されるとともに、係止ピン２９によ
り右側のフレーム９に対する回動が規制されている。こ
のバルブ円盤２５の内側面には、中空軸２１の前記開口
２６と対向し得るように周方向に沿って延びる凹状の連
通溝３０が渡し胴６の前記枚葉紙支持面１２の長さと対
応する所定の長さで形成され、その一部に接続された吸
気管３１はコックを介して吸気ブロア（（スれも図示し
ない）に連結されている。A valve disk 25 is fitted onto the shaft 7 between the ring 23 and the bearing 8 on the right side so that it can rotate and slide relative to each other, and is always pressed against the ring 23 by the action of a spring 28 interposed between the ring 23 and the bearing 8. At the same time, rotation with respect to the right frame 9 is restricted by the locking pin 29. On the inner surface of the valve disk 25, a concave communication groove 30 extending along the circumferential direction so as to face the opening 26 of the hollow shaft 21 is provided, which corresponds to the length of the sheet supporting surface 12 of the transfer drum 6. The intake pipe 31 is formed to have a predetermined length and is connected to a part of the intake pipe 31 through a cock to an intake blower (not shown).
第１．３．４図に示すように、前記中空軸２１には長孔
状の透孔３３が渡し胴６上の枚葉紙Ｐの後縁部中央を挾
む左右両側に所定の間隔をおいてそれぞれ複数個ずつ列
設されるとともに、これらの透孔３３と対応する位置に
は前記捕捉部材２０が基端の支持筒部３４にて相対回動
及びスライド可能に挿着されている。なお、中央部一対
の捕捉部材２０ａはねじ１９により中空軸２１に対し固
定されている。各捕捉部材２０はその長手方向に延びる
ように貫設された吸気道３５をそれぞれ備え、その吸気
道３５の基端は前記透孔３３を介して中空軸２１の吸気
通路２２に連通され、かつ先端は捕捉部材２０の先端面
に設けた複数の吸気孔３６よりなる吸着部３７に接続さ
れている。そして、両面印刷時において渡し胴６の回転
に伴い中空軸２１の開口２６が前記バルブ円盤２５の連
通溝３０に対向配置されたときには、前記吸気ブロアの
作動により吸気通路２２、透孔３３、吸気道３５を介し
吸気孔３６からエアが吸引され、その吸引力に基づいて
各捕捉部材２０の吸着部３７に枚葉紙支持面１２上の枚
葉紙Ｐの後縁部が吸着捕捉されるようになっている。な
お、第５図に示す３２は各捕捉部材２０の先端部に設け
られた調整つまみであり、これを手動操作することによ
って各吸着部８７における吸引停止並びに吸引力の調節
を行い得るようになっている。As shown in FIG. 1.3.4, the hollow shaft 21 is provided with a long hole-shaped through hole 33 at a predetermined interval on both the left and right sides of the center of the trailing edge of the sheet P on the transfer drum 6. A plurality of the capturing members 20 are arranged in a row in each of the holes 33, and the capturing members 20 are inserted in positions corresponding to the through holes 33 so as to be relatively rotatable and slidable at the support cylinder portion 34 at the base end. Note that the central pair of capturing members 20a are fixed to the hollow shaft 21 by screws 19. Each capture member 20 is provided with an intake passage 35 extending in its longitudinal direction, and the proximal end of the intake passage 35 is communicated with the intake passage 22 of the hollow shaft 21 via the through hole 33, and The tip end is connected to a suction section 37 consisting of a plurality of intake holes 36 provided on the tip surface of the capturing member 20 . During double-sided printing, when the opening 26 of the hollow shaft 21 is arranged to face the communication groove 30 of the valve disk 25 as the transfer cylinder 6 rotates, the intake passage 22, the through hole 33, and the Air is sucked from the intake hole 36 through the passage 35, and based on the suction force, the trailing edge of the sheet P on the sheet support surface 12 is sucked and captured by the suction portion 37 of each capturing member 20. It has become. Note that 32 shown in FIG. 5 is an adjustment knob provided at the tip of each capturing member 20, and by manually operating this knob, it is possible to stop the suction in each suction part 87 and adjust the suction force. ing.
一方、第１．２．５図に示すように、右側の可動セグメ
ントアーム１１と前記リング２３との間において中空軸
２１の露出端部には作動レバー３９がその一端にて固定
され、そのほぼ中央部には右側のフレーム９に固設した
制御カム４０（第５図参照）に係合する係合ローラ４１
が軸着されている。作動レバー３９の先端と右側の可動
セグメントアーム１１の外縁部との間にはガイドロッド
４２を介してばね４３が設けられ、そのばね力により作
動レバー８９が第５図の時計方向へ回動付勢されて係合
ローラ４１が制御カム４０に圧接されるようになってい
る。又、第１．３．４図に示すように、中央部一対の捕
捉部材２０ａを除く各へ 捕捉部材２０の一側面と
隣接する各位置において前記中空軸２１上にはそれぞれ
ねじ４８により作動体４４が固定され、それらの先端に
は各捕捉部材２０の一側面中央部に突設した係合片４５
の切欠部４６に嵌合する作動ローラ４７が軸着されてい
る。On the other hand, as shown in FIG. 1.2.5, an operating lever 39 is fixed at one end to the exposed end of the hollow shaft 21 between the right movable segment arm 11 and the ring 23, and the operating lever 39 is fixed at one end thereof. At the center is an engagement roller 41 that engages with a control cam 40 (see FIG. 5) fixed to the frame 9 on the right side.
is attached to the shaft. A spring 43 is provided between the tip of the operating lever 39 and the outer edge of the right movable segment arm 11 via a guide rod 42, and the spring force causes the operating lever 89 to rotate clockwise in FIG. The engagement roller 41 is brought into pressure contact with the control cam 40. In addition, as shown in FIG. 1.3.4, an actuating body is attached to each hollow shaft 21 by a screw 48 at each position adjacent to one side of the capturing member 20 except for the pair of capturing members 20a in the center. 44 are fixed, and an engagement piece 45 protruding from the center of one side of each capture member 20 is attached to the tip thereof.
An actuating roller 47 that fits into the notch 46 is pivoted.
そして、前記作動レバー３９、中空軸２１、作動体４４
等によりこの実施例の周方向移動機構が構成され、第２
図に示すように、渡し胴６の回転に伴い各捕捉部材２０
が供給側１に近接する位置から反転胴２に近接する位置
まで移動されるときには、前記制御カム４０と係合ロー
ラ４１との係合により作動レバー３９が制御カム４０の
カム形状に基づいて渡し胴６の回転方向とは逆方向へ所
定角度回動され、これと一体に中空軸２１、中央部一対
の捕捉部材２０ａ及び各作動体４４が回動されるととも
に、作動ローラ４７と切欠部４６との嵌合により左右両
側部の複数の捕捉部材２０が回動される。従って、各捕
捉部材２０の回動に伴い前記各吸着部３７が渡し胴６の
周面上においてその回転方向とは逆の周方向（第５図の
矢印入方向）に沿って所定量移動される。又、渡し胴６
の回転に伴い各捕捉部材２０が反転胴２に近接する位置
から供給側ｌに近接する位置まで移動されるときには、
制御カム４０の前記とは異なる部分のカム形状に基づい
て作動レバー３９、中空軸２１、作動体４４がそれぞれ
渡し胴６の回転方向と同一の方向へかつ前記回動角度と
同一の角度で復帰回動されて１．各吸着部３７が渡し胴
６の回転方向と同一の周方向へ復帰移動されるようにな
っている。The operating lever 39, the hollow shaft 21, and the operating body 44
The circumferential movement mechanism of this embodiment is constructed by the above, and the second
As shown in the figure, as the transfer drum 6 rotates, each capture member 20
When the control cam 40 is moved from a position close to the supply side 1 to a position close to the reversing cylinder 2, the actuation lever 39 is moved based on the cam shape of the control cam 40 due to the engagement between the control cam 40 and the engagement roller 41. The barrel 6 is rotated by a predetermined angle in the direction opposite to the rotational direction of the barrel 6, and the hollow shaft 21, the pair of central capturing members 20a, and each of the actuating bodies 44 are rotated together with the hollow shaft 21, and the actuating roller 47 and the notch 46 are also rotated. The plurality of capturing members 20 on both the left and right sides are rotated by fitting with the holding members 20 . Therefore, as each capturing member 20 rotates, each suction portion 37 is moved by a predetermined amount on the circumferential surface of the transfer drum 6 along the circumferential direction opposite to the rotating direction (the direction indicated by the arrow in FIG. 5). Ru. Also, transfer trunk 6
When each capturing member 20 is moved from a position close to the reversing cylinder 2 to a position close to the supply side l with the rotation of the
Based on the cam shapes of the different portions of the control cam 40, the operating lever 39, the hollow shaft 21, and the operating body 44 return in the same direction as the rotational direction of the transfer drum 6 and at the same angle as the rotation angle. Rotated 1. Each suction portion 37 is moved back in the same circumferential direction as the rotational direction of the transfer drum 6.
第１図に示すように、前記中空軸２１と相対する位置に
おいて左右両可動セグメントアーム１１間には、中空軸
２１と平行に延びるように作動軸５１が回動可能に架設
支持され、その中央部には左右一対の偽金歯部５２が刻
設されるとともに、中央部一対の捕捉部材２０ａを除く
各捕捉部材２０と相対する位置にはそれぞれ扇形歯車５
３が固定されている。又、第６図に示すように、中央部
一対の捕捉部材２０８間において中空軸２１上には、作
動軸５１の前記各係合歯車５２と噛合する連結歯車５４
が固着され、中空軸２１の回動を作動軸５１に伝達し得
るようになっている。As shown in FIG. 1, an operating shaft 51 is rotatably supported between the left and right movable segment arms 11 at a position facing the hollow shaft 21, and extends parallel to the hollow shaft 21. A pair of left and right false gold tooth portions 52 are engraved on the portion, and a sector gear 5 is provided at a position facing each of the capturing members 20 except for the pair of capturing members 20a in the central portion.
3 is fixed. Further, as shown in FIG. 6, on the hollow shaft 21 between the pair of capturing members 208 in the central portion, there is a connecting gear 54 that meshes with each of the engaging gears 52 of the operating shaft 51.
is fixed so that rotation of the hollow shaft 21 can be transmitted to the actuating shaft 51.
第１．３．７図に示すように、中央部一対の捕捉部材２
０ａを除く各捕捉部材２０の他側面と近接する位置にお
いて中空軸２１上には、複数のカム体５５が相対回動可
能に外嵌され、ねじ５７により中空軸２１に固着された
キー５８を介してその軸方向への移動が阻止されている
。各カム体５５の一側部外周面には作動軸５１上の前記
扇形歯車５３に噛合する被動歯部５６が刻設されており
、中空軸２１の回動が連結歯車５４、偽金歯部５２、扇
形歯車５３及び被動歯車５６を介してカム体５５に伝達
されてそのカム体５５が中空軸２１に対しそれとは異な
る角度で同一方向（ζ相対回動されるようになっている
。又、第３，８図に示すように、カム体５５の中央部外
周面には凹状のカム溝５９がカム体５５の回動面に対し
所定の角度で斜交する直線に沿って延びるように形成さ
れ、このカムｍ５９内には各捕捉部材２０の他側面基端
部に突設した支持片６０に軸着されたカムフォロアー６
１が遊嵌されている。なお、右側に配置されたカム溝５
９と左側に配置されたカム溝５９とは線対称をなす形状
となっている。As shown in Figure 1.3.7, a pair of capturing members 2 at the center
A plurality of cam bodies 55 are fitted onto the hollow shaft 21 so as to be relatively rotatable at positions close to the other side of each capturing member 20 except 0a, and a key 58 fixed to the hollow shaft 21 by a screw 57 is fitted onto the hollow shaft 21 in a position close to the other side surface of each of the capturing members 20 except 0a. Its axial movement is prevented through the support. A driven tooth portion 56 that meshes with the sector gear 53 on the operating shaft 51 is carved on the outer circumferential surface of one side of each cam body 55, and the rotation of the hollow shaft 21 is caused by the connecting gear 54 and the false gold tooth portion 52. , is transmitted to the cam body 55 via the sector gear 53 and the driven gear 56, so that the cam body 55 is rotated relative to the hollow shaft 21 in the same direction (ζ) at a different angle. As shown in FIGS. 3 and 8, a concave cam groove 59 is formed on the outer peripheral surface of the central portion of the cam body 55 so as to extend along a straight line obliquely intersecting the rotating surface of the cam body 55 at a predetermined angle. Inside this cam m59 is a cam follower 6 which is pivoted to a support piece 60 protruding from the base end of the other side of each capture member 20.
1 is loosely fitted. In addition, the cam groove 5 located on the right side
9 and the cam groove 59 arranged on the left side have a line-symmetrical shape.
そして、前記連結歯車５４、作動軸５１、扇形歯車５３
及びカム体５５等によりこの実施例の軸方向移動機構が
構成され、前記周方向移動機構の作動に伴い各捕捉部材
２０が渡し胴６の回転方向とは逆方向へ回動されたとき
には、中空軸２１の回動に連動してカム体５５がそれと
同一方向へ相対回動され、カム溝５９とカムフォロアー
６１との係合により各捕捉部材２０がカム溝５９の形状
に応じた所定の移動量で中空軸２１に沿ってそれぞれ外
方に向かって移動され、各吸着部３７が渡し胴６の周面
上をその軸方向外側に向かって移動されるようになって
いる。又、各捕捉部材２０が渡し胴６の回転方向と同一
方向に回動されたときには、中空軸２１及びカム体５５
が前記とはそれぞれ逆方向へ回動されて各捕捉部材２０
の吸着部３７がそれぞれ渡し胴６の軸方向内側に向かっ
て移動される。The connecting gear 54, the operating shaft 51, and the sector gear 53
The cam body 55 and the like constitute an axial movement mechanism of this embodiment, and when each capturing member 20 is rotated in a direction opposite to the rotational direction of the transfer drum 6 due to the operation of the circumferential movement mechanism, the hollow In conjunction with the rotation of the shaft 21, the cam body 55 is relatively rotated in the same direction, and each capture member 20 is moved in a predetermined manner according to the shape of the cam groove 59 due to the engagement between the cam groove 59 and the cam follower 61. The suction portions 37 are moved outwardly along the hollow shaft 21 by the same amount, and each suction portion 37 is moved outward in the axial direction on the circumferential surface of the transfer drum 6. Further, when each capturing member 20 is rotated in the same direction as the rotational direction of the transfer drum 6, the hollow shaft 21 and the cam body 55
are rotated in the opposite directions to the respective capturing members 20.
The suction portions 37 are each moved toward the inner side of the transfer drum 6 in the axial direction.
、−２なお、この実施例においては第８図に実線と破線
とで示されているように、前記カム溝５９におけるカム
体５５の回動面に対する斜交角度は、外側に配置された
カム体５５のカム溝５９はど内側に配置されたカム体５
５のカム溝５９よりも順次大きくなるように設定されて
いて、各捕捉部材２０が外側に位置するほど順次大きな
移動量で作動されるようになっている。, -2 In this embodiment, as shown by solid lines and broken lines in FIG. The cam groove 59 of the body 55 is located inside the cam body 5.
The cam grooves 59 are set so as to be sequentially larger than the cam grooves 59 of No. 5, and the farther each capturing member 20 is located on the outside, the larger the moving amount is operated.
次に、以上のように構成された枚葉輪転印刷機の作用に
ついて説明する。Next, the operation of the sheet-fed rotary printing press configured as above will be explained.
さて、片面印刷時には供給側１上の枚葉紙Ｐの前縁が渡
し胴６の把持爪１５に引渡され、渡し胴６の半回転作動
に伴い同じくその前縁が反転胴２の反転爪４に引渡され
、その反転爪４が反転作動されることなく枚葉紙Ｐの前
縁が圧胴１０５（第１０図参照）の把持爪１０６に引渡
されて、その圧胴１０５上において枚葉紙Ｐの片面に多
色刷りが行われる。そして、この片面印刷時には枚葉紙
Ｐの前縁が順次隣接膜の把持爪に引渡されて両面印刷時
とは異なり把持位置にずれが生じるおそれがないため、
運転開始に先立って予め渡し胴６の各捕捉部材２０に接
続された前記吸気ブロアの作動を停止するか又は前記吸
気管３１上の図示しないコックを閉鎖操作するかして捕
捉部材２０が吸着作動しないようにしておく。ただし、
前記制御カム４０と係合ローラ４１との係合に基づき作
動レバー３９が揺動されて各捕捉部材２０の吸着部３７
は渡し胴６の周方向及び軸方向にそれぞれ移動される。Now, during single-sided printing, the leading edge of the sheet P on the supply side 1 is transferred to the gripping pawl 15 of the transfer cylinder 6, and as the transfer cylinder 6 operates half a rotation, the leading edge of the sheet P is also transferred to the reversing pawl 4 of the reversing cylinder 2. The front edge of the sheet P is delivered to the gripping claw 106 of the impression cylinder 105 (see FIG. 10) without the reversing claw 4 being reversed, and the sheet P is held on the impression cylinder 105. Multicolor printing is performed on one side of P. During this single-sided printing, the leading edge of the sheet P is sequentially transferred to the gripping claws of the adjacent film, and unlike during double-sided printing, there is no risk of misalignment of the gripping position.
Prior to the start of operation, the intake blower connected to each capture member 20 of the transfer drum 6 is stopped in advance, or a cock (not shown) on the intake pipe 31 is closed, so that the capture member 20 is in suction operation. Try not to do that. however,
The actuation lever 39 is swung based on the engagement between the control cam 40 and the engagement roller 41, and the suction portion 37 of each capture member 20 is
are moved in the circumferential direction and axial direction of the transfer drum 6, respectively.
なお、前記実施例の構成とは異なり片面印刷時に手動操
作により制御カム４０と係合ローラ４１との係合が解離
する位置へ作動レバー３９を回動配置するための適宜の
解除手段を設ければ、各捕捉部材２０の空作動を停止さ
せることができる。Note that, unlike the configuration of the embodiment described above, an appropriate release means is provided for rotating the operating lever 39 to a position where the engagement between the control cam 40 and the engagement roller 41 is disengaged by manual operation during single-sided printing. For example, idle operation of each capture member 20 can be stopped.
一方、両面印刷時には運転開始に当り吸気ブロアを駆動
するとともに吸気管３１のコックを開放操作する。そし
て、供給側ｌから供給された枚葉紙Ｐの前縁が渡し胴６
の把持爪１５に把持され、その後縁部が各捕捉部材２０
と対接する位置まで渡し胴６が回転されると、中空軸２
１の開口２６がバルブ円盤２５の連通溝３０と対向し、
この連通溝３０を介して吸気管３１と中空軸２１の吸気
通路２２とが連通状態となって吸気ブロアの吸気作用に
より各捕捉部材２０の吸着部３７からエアが吸引される
。従って、渡し胴６の枚葉紙支持面１２上の枚葉紙Ｐの
後縁部が各吸着部３７により吸着保持され、この状態に
おいて枚葉紙Ｐの後縁が渡し胴６と反転胴２との接点位
置に向けて移送される。On the other hand, when double-sided printing is started, the intake blower is driven and the cock of the intake pipe 31 is opened. Then, the leading edge of the sheet P supplied from the supply side l is transferred to the transfer cylinder 6.
is gripped by the gripping claws 15 of the gripping member 20, and its rear edge is
When the transfer drum 6 is rotated to a position where it comes into contact with the hollow shaft 2
1 opening 26 faces the communication groove 30 of the valve disk 25,
The intake pipe 31 and the intake passage 22 of the hollow shaft 21 are brought into communication via the communication groove 30, and air is sucked from the suction portion 37 of each capture member 20 by the intake action of the intake blower. Therefore, the trailing edge of the sheet P on the sheet supporting surface 12 of the transfer cylinder 6 is sucked and held by each suction section 37, and in this state, the trailing edge of the sheet P is held between the transfer cylinder 6 and the reversing cylinder 2. is transported towards the point of contact with.
このとき、渡しｌｌｌ６の回転に伴う制御カム４０と係
合ローラ４１との係合に基づき前記作動レバー３９が第
２，５図において中空軸２１を中心にそれと一体に時計
方向へ所定角度回動され、中空軸２１の回動に伴い中央
゛部一対の捕捉部材２０ａが渡し胴６の回転方向とは逆
の方向へ回動されるとともに、作動体４４を介して左右
両側部の各捕捉部材２０が同じく痩し胴６の回転方向に
対し逆用方向へ回動される。又、これと同期して中空軸
２１の回動が連結歯車５４、係合歯部５２、作動軸５１
、扇形歯車５３及び被動歯部５６を介してカム体５５に
伝達され、そのカム体５５が中空軸２１上で渡し胴６の
回転方向とは逆方向に所定角度相対回動され、カム溝５
９とカムフォロアー６１との係合に基づき各捕捉部材２
０がカム溝５９の形状に応じたそれぞれ異なる移動量で
渡し胴６の軸方向外側に向けて移動される。従って、各
捕捉部材２０の吸着部３７は渡し胴６の周面上において
枚葉紙Ｐの後縁部を吸着捕捉した状態で、第９図に矢印
で示すように、前記逆層方向への移動と軸方向外側への
移動とを合成してなる斜め外後方に向けて移動され、そ
の移動によって枚葉紙Ｐの後縁部にはそれらの移動方向
に沿う伸張力が作用する。それ故、渡し胴６上の枚葉紙
Ｐに発生している周方向に沿うたわみ並びに軸方向に沿
うたわみのいずれもが伸張除去される。At this time, based on the engagement between the control cam 40 and the engagement roller 41 as the transfer lll6 rotates, the actuating lever 39 rotates by a predetermined angle clockwise around the hollow shaft 21 in FIGS. 2 and 5. As the hollow shaft 21 rotates, the pair of central capturing members 20a are rotated in the direction opposite to the rotating direction of the transfer drum 6, and the capturing members 20a on the left and right sides are rotated via the operating body 44. 20 is similarly rotated in a direction opposite to the direction of rotation of the slimming trunk 6. In addition, in synchronization with this, the rotation of the hollow shaft 21 is caused by the rotation of the connecting gear 54, the engagement tooth portion 52, and the operating shaft 51.
, is transmitted to the cam body 55 via the sector gear 53 and the driven tooth portion 56, and the cam body 55 is relatively rotated by a predetermined angle on the hollow shaft 21 in a direction opposite to the rotation direction of the transfer drum 6, and the cam groove 5
9 and the cam follower 61, each capturing member 2
0 is moved axially outward of the transfer drum 6 by different moving amounts depending on the shape of the cam groove 59. Therefore, the suction portion 37 of each capturing member 20 suctions and captures the trailing edge of the sheet P on the peripheral surface of the transfer drum 6, and as shown by the arrow in FIG. The sheet P is moved obliquely outward and rearward, which is a combination of the movement and the movement outward in the axial direction, and as a result of this movement, a stretching force along the direction of movement acts on the trailing edge of the sheet P. Therefore, both the deflection along the circumferential direction and the deflection along the axial direction occurring in the sheet P on the transfer cylinder 6 are expanded and removed.
そして、各捕捉部材２０が反転胴２と対接する位置に達
すると、枚葉紙Ｐの後縁が反転胴２の反転爪４により把
持され、その後直ちに中空軸２１の開口２６がバルブ円
盤２５の連通溝３０から外れることにより吸気作用が停
止されて各吸着部３へ ７から枚葉紙Ｐの後縁部
が解放される。このとき、渡し胴６Ｊ：において枚葉紙
Ｐのたるみが除去されているので、捕捉部材２０から反
転爪４への引渡し動作を位置ずれかない状態で正確に行
うことができる。その後、反転爪４の前記した反転作動
に伴い枚葉紙Ｐが反転胴２上で裏返しされ、裏返しされ
た枚葉紙Ｐの前縁が圧胴１０５の把持爪１０６に引渡さ
れ、その圧胴１０５上において見当ずれがない正確な裏
面印刷が行われる。又、度し胴６においては枚葉紙Ｐを
解放した各捕捉部材２０が供給層１側への回送に伴い周
方向及び軸方向に沿ってそれぞれ復帰移動された後、供
給層１と対接する位置において次の枚葉紙Ｐの後縁部を
吸着捕捉する。When each capturing member 20 reaches a position where it comes into contact with the reversing cylinder 2, the trailing edge of the sheet P is gripped by the reversing claw 4 of the reversing cylinder 2, and immediately thereafter the opening 26 of the hollow shaft 21 is opened in the valve disk 25. By coming off the communication groove 30, the suction action is stopped and the trailing edge of the sheet P is released from 7 to each suction section 3. At this time, since the slack in the sheet P is removed in the transfer cylinder 6J:, the transfer operation from the capturing member 20 to the reversing claw 4 can be performed accurately without positional deviation. Thereafter, the sheet P is turned over on the reversing cylinder 2 with the above-described reversing operation of the reversing claw 4, and the front edge of the turned sheet P is delivered to the gripping claw 106 of the impression cylinder 105. Accurate backside printing without misregistration is performed on 105. In addition, in the counterclockwise cylinder 6, the respective capturing members 20 that have released the sheets P are moved back along the circumferential direction and the axial direction as they are forwarded to the supply layer 1 side, and then come into contact with the supply layer 1. At this position, the trailing edge of the next sheet P is captured by suction.
効果
以上詳述したように、この発明によれば各捕捉部材にお
ける吸着部が枚葉紙の後縁部を吸着捕捉した状態で周方
向への移動と軸方向への移動とを合成した方向に移動さ
れるので、渡し胴上の枚葉紙が保有するたるみを確実に
除去して裏面印刷時における見当ずれの発生を確実に防
止することができるとともに、各吸着部が常に渡し胴６
の周面上で移動されて外方へ突出しないため隣接胴との
間における接触等のトラブルを回避でき、しかも吸着に
より枚葉紙が捕捉されるので機械的に把持する場合とは
異なり枚葉紙に把持跡が残ったり騒音が発生したりする
おそれがなく、加えて円弧運動により枚葉紙を伸張する
場合と比較してより簡単かつコンパクトな構成で大きな
伸張量を得ることができるという優れた効果を奏する。Effects As described in detail above, according to the present invention, the suction portion of each capturing member suctions and captures the trailing edge of the sheet, and moves in the direction that combines the circumferential movement and the axial movement. This makes it possible to reliably remove slack in the sheets on the transfer cylinder and reliably prevent the occurrence of misregistration when printing on the reverse side.
Since the paper is moved on the circumferential surface of the cylinder and does not protrude outward, troubles such as contact with adjacent cylinders can be avoided.Furthermore, the sheets are captured by suction, unlike mechanical gripping. There is no risk of leaving grip marks on the paper or generating noise, and in addition, it is possible to obtain a large amount of stretching with a simpler and more compact structure than when stretching sheets of paper using circular motion. It has a great effect.
叉、乙の実施例の吸着紙引き装置においては、渡し胴の
軸方向外側に位置する捕捉部材はど内側のものよりも順
次大きく軸方向へ移動されるように構成したので、紙幅
が大である枚葉紙を使用する際に幅方向全体にわたって
たるみを確実に除去することができるという効果もある
。Furthermore, in the suction paper pulling device of the embodiment B, the catching members located on the axially outer side of the transfer cylinder are moved in the axial direction to a greater extent than those located on the inner side, so that the paper width is large. Another effect is that when using a certain sheet of paper, slack can be reliably removed over the entire width direction.
第１図はこの発明を具体化した一実施例を示す度し胴の
縦断面図、第２図は枚葉輪転印刷機の要部側面図、第３
図は吸着紙引き装置を示す要部縦断面図、第４図は吸着
部を示す上面図、第５図は周方向移動機構を示す渡し胴
の要部縦断面図、第６図及び第７図は軸方向移動機構を
示す渡し胴のそれぞれ異なる位置での要部縦断面図、第
８図はカム溝の形状を示すカム体の一部正面図、第９図
は紙引き作用を示す枚葉紙の平面図、第１Ｏ図及び第１
１図はそれぞれ従来のｗ面及び両面印刷時における作用
を示す枚葉輪転印刷機の側面図である。
図において、１は供給層、２は反転胴、４は反転機構の
一部を構成する反転爪、６は渡し胴、１５は把持部材と
しての把持爪、２０は捕捉部材、２１は支持部材として
の中空軸、３７は吸着部、３９．４４は周方向移動機構
を構成する作動レバー及び作動体、５１．５３，５４．
５５は軸方向移動機構を構成する作動軸、扇形歯車、連
結歯車及びカム体、Ｐは枚葉紙である。FIG. 1 is a vertical cross-sectional view of a retardant cylinder showing an embodiment of the present invention, FIG. 2 is a side view of essential parts of a sheet-fed rotary printing press, and FIG.
4 is a top view showing the suction section, FIG. 5 is a vertical sectional view of the main part of the transfer cylinder showing the circumferential movement mechanism, and FIGS. The figures are longitudinal sectional views of the main parts of the transfer cylinder at different positions showing the axial movement mechanism, Figure 8 is a partial front view of the cam body showing the shape of the cam groove, and Figure 9 is a sheet showing the paper pulling action. Top view of the leaf, Figure 1O and Figure 1
FIG. 1 is a side view of a sheet-fed rotary printing press showing the operation during conventional W-side and double-sided printing, respectively. In the figure, 1 is a supply layer, 2 is a reversing cylinder, 4 is a reversing claw constituting a part of the reversing mechanism, 6 is a transfer cylinder, 15 is a gripping claw as a gripping member, 20 is a capturing member, and 21 is a supporting member. , a hollow shaft 37, an adsorption section, 39.44 an operating lever and an operating body constituting a circumferential movement mechanism, 51.53, 54.
55 is an operating shaft, a sector gear, a connecting gear, and a cam body that constitute the axial movement mechanism, and P is a sheet of paper.
Claims (1)
Ｐ）を表裏反転するための反転機構（４）を備えた反転
胴（２）と、供給胴（１）と反転胴（２）との間に配置
され供給胴（１）から供給された枚葉紙（Ｐ）の前縁を
把持する把持部材（１５）を有するとともに枚葉紙（Ｐ
）の後縁部を吸着捕捉する捕捉部材（２０）を備えた渡
し胴（６）とからなり、両面印刷時には渡し胴（６）上
の枚葉紙（Ｐ）の後縁を反転胴（２）に引き渡すように
した枚葉輪転印刷機において、 前記捕捉部材（２０）が渡し胴（６）上の枚葉紙（Ｐ）
の後縁部中央を挾む少なくとも二位置に配置されるとと
もに、それぞれに渡し胴（６）のほぼ周面上に位置する
吸着部（３７）が設けられていることと、 前記渡し胴（６）の軸線と平行に延びる軸線を有し、前
記各捕捉部材（２０）をその軸線上で回動及びスライド
可能に支持する支持部材（２１）と、 その支持部材（２１）に作動連結され、渡し胴（６）の
回転に伴つて各捕捉部材（２０）を回動させて前記吸着
部（３７）を渡し胴（６）の回転方向とは逆の周方向に
沿つて移動させる周方向移動機構（３９、４４）と、 その周方向移動機構（３９、４４）に作動連結され、各
捕捉部材（２０）を前記回動動作に伴い支持部材（２１
）上でスライドさせて、前記吸着部（３７）を渡し胴（
６）の軸方向外側に向けて移動させる軸方向移動機構（
５１、５３、５４、５５）と を備え、前記両面印刷時には渡し胴（６）上の枚葉紙（
Ｐ）に対し前記吸着部（３７）の二つの移動方向を合成
した方向に沿う伸張力を作用させるように構成したこと
を特徴とする吸着紙引き装置。 ２ 前記捕捉部材（２０）を渡し胴（６）上の枚葉紙（
Ｐ）の後縁部中央を挾む両側にそれぞれ複数個列設し、
外側の捕捉部材（２０）が内側の捕捉部材（２０）より
も渡し胴（６）の軸方向に大きくスライドするように前
記軸方向移動機構（５５）を構成したことを特徴とする
特許請求の範囲第１項記載の枚葉輪転印刷機における吸
着紙引き装置。[Claims] A supply cylinder (1) for supplying one sheet (P), and a supply cylinder (1) for supplying one sheet (P);
A reversing cylinder (2) equipped with a reversing mechanism (4) for reversing the sheets P), and a reversing cylinder (2) disposed between the supply cylinder (1) and the reversing cylinder (2) and supplied from the supply cylinder (1). It has a gripping member (15) that grips the front edge of the sheet (P), and also holds the front edge of the sheet (P).
) and a transfer cylinder (6) equipped with a capturing member (20) that suctions and captures the trailing edge of the sheet (P).During double-sided printing, the trailing edge of the sheet (P) on the transfer cylinder (6) is transferred to the reversing cylinder (2). ), in which the sheet-fed rotary printing press is adapted to transfer sheets (P) onto a transfer cylinder (6), wherein the catching member (20)
Adsorption portions (37) are provided at at least two positions sandwiching the center of the trailing edge and are located at each substantially on the circumferential surface of the transfer drum (6); ) having an axis extending parallel to the axis of the support member (21) and supporting each of the capturing members (20) rotatably and slidably on the axis; and operatively connected to the support member (21); Circumferential movement in which each capturing member (20) is rotated as the transfer drum (6) rotates to move the suction section (37) along a circumferential direction opposite to the rotational direction of the transfer drum (6). The mechanism (39, 44) is operatively connected to the circumferential movement mechanism (39, 44), and each capture member (20) is moved by the support member (21) along with the rotational movement.
) on the transfer cylinder (
6) Axial movement mechanism (
51, 53, 54, 55), and during the double-sided printing, the sheets (
A suction paper pulling device characterized in that it is configured to apply a stretching force to P) in a direction that is a combination of two moving directions of the suction portion (37). 2 The catching member (20) is placed on the sheet (6) on the transfer cylinder (6).
P) A plurality of rows are provided on both sides sandwiching the center of the rear edge,
The axial movement mechanism (55) is configured such that the outer catching member (20) slides more in the axial direction of the transfer drum (6) than the inner catching member (20). A suction paper pulling device in a sheet-fed rotary printing press according to scope 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24260984A JPS61120749A (en) | 1984-11-16 | 1984-11-16 | Suction paper-drawing device for sheet fed rotary press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24260984A JPS61120749A (en) | 1984-11-16 | 1984-11-16 | Suction paper-drawing device for sheet fed rotary press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61120749A true JPS61120749A (en) | 1986-06-07 |
| JPH0471710B2 JPH0471710B2 (en) | 1992-11-16 |
Family
ID=17091595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24260984A Granted JPS61120749A (en) | 1984-11-16 | 1984-11-16 | Suction paper-drawing device for sheet fed rotary press |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61120749A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62256655A (en) * | 1986-04-21 | 1987-11-09 | フオルクスアイゲネルベトリ−プ、コンビナ−ト、ポリグラフ、“ベルナ−、ランベルツ”、ライプツイヒ | Controller for sucker in paper guide cylinder for printer |
| JPS62264954A (en) * | 1986-04-21 | 1987-11-17 | フオルクスアイゲネルベトリ−プ、コンビナ−ト、ポリグラフ、“ベルナ−、ランベルツ”、ライプツイヒ | Controller for sucker in paper guide cylinder for printer |
| JPS6430232U (en) * | 1987-08-17 | 1989-02-23 | ||
| JP2001349677A (en) * | 2000-06-07 | 2001-12-21 | Kawasaki Steel Corp | Refractory lining of vacuum degassing processing container and non-calcined magnesia-carbon brick used therefor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3036790A1 (en) * | 1980-09-30 | 1982-04-22 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | BOW TRANSFER CYLINDERS FOR ARCH ROTARY PRINTING MACHINES CONVERTABLE TO BEAUTIFUL AND REPRINT |
-
1984
- 1984-11-16 JP JP24260984A patent/JPS61120749A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3036790A1 (en) * | 1980-09-30 | 1982-04-22 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | BOW TRANSFER CYLINDERS FOR ARCH ROTARY PRINTING MACHINES CONVERTABLE TO BEAUTIFUL AND REPRINT |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62256655A (en) * | 1986-04-21 | 1987-11-09 | フオルクスアイゲネルベトリ−プ、コンビナ−ト、ポリグラフ、“ベルナ−、ランベルツ”、ライプツイヒ | Controller for sucker in paper guide cylinder for printer |
| JPS62264954A (en) * | 1986-04-21 | 1987-11-17 | フオルクスアイゲネルベトリ−プ、コンビナ−ト、ポリグラフ、“ベルナ−、ランベルツ”、ライプツイヒ | Controller for sucker in paper guide cylinder for printer |
| JPS6430232U (en) * | 1987-08-17 | 1989-02-23 | ||
| JP2001349677A (en) * | 2000-06-07 | 2001-12-21 | Kawasaki Steel Corp | Refractory lining of vacuum degassing processing container and non-calcined magnesia-carbon brick used therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0471710B2 (en) | 1992-11-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |