JPH02300043A - Sheet holding device - Google Patents
Sheet holding deviceInfo
- Publication number
- JPH02300043A JPH02300043A JP11728389A JP11728389A JPH02300043A JP H02300043 A JPH02300043 A JP H02300043A JP 11728389 A JP11728389 A JP 11728389A JP 11728389 A JP11728389 A JP 11728389A JP H02300043 A JPH02300043 A JP H02300043A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- sheet
- auxiliary
- holding
- gripping
- 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
- 210000000078 claw Anatomy 0.000 claims description 38
- 238000000034 method Methods 0.000 description 3
- 238000007645 offset printing Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000002716 delivery method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
Landscapes
- Handling Of Cut Paper (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、例えば枚葉オフセット印刷機の圧胴等に用
いられる紙くわえ装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a paper gripping device used, for example, in an impression cylinder of a sheet-fed offset printing press.
従来の技術
従来、例えば枚葉オフセット印刷機の圧胴等に用いられ
ていた紙くわえ装置は、くわえ爪の動きによってのみ用
紙の先端部を押えたり解放したりするものであって、く
わえ爪が用紙を解放し始めた時点で用紙の先端部の拘束
が解除されるので不安定となり、印刷機のシュートデリ
バリと呼ばれる排紙方式では、排紙型と圧胴の間隙に用
紙が押込まれてジャムとなる問題点があり、特に薄紙の
高速印刷時には、用紙の搬送スピードが高いため上記し
た問題点は増大する。2. Prior Art Conventionally, paper gripping devices used, for example, in the impression cylinders of sheet-fed offset printing machines, press and release the leading edge of the paper only by the movement of the gripping claws. When the paper begins to be released, the leading edge of the paper is no longer restrained, making it unstable, and in the printing press's delivery method called chute delivery, the paper is pushed into the gap between the paper delivery mold and the impression cylinder, resulting in a jam. Especially when printing thin paper at high speed, the above-mentioned problems are exacerbated because the paper conveyance speed is high.
発明が解決しようとする課題
このような問題を解消するために従来においても、第５
図及び第６図にみられる２例のように、くわえ爪１、支
持部材２の外に補助部材２３を設けたもののあることは
知られているが、これらはいずれも用紙Ｐの解放時にそ
の先端を強制的に持上げることができても、これを拘束
することができないから、前記のような問題を全面的に
かつ有効に解決することができないという問題がある。Problems to be Solved by the Invention In order to solve such problems, in the past, the fifth
As shown in the two examples shown in Fig. 6 and Fig. 6, it is known that there is an auxiliary member 23 provided in addition to the gripping claw 1 and the support member 2. Even if the tip can be forcibly lifted, it cannot be restrained, so there is a problem that the above-mentioned problems cannot be completely and effectively solved.
そこでこの発明の目的は、前記のような従来の紙くわえ
装置のもつ問題を解消し、用紙が薄紙であっても、また
カールや波打ちがあっても、ジャムを発生することのな
い紙くわえ装置を提供するにある。Therefore, an object of the present invention is to solve the problems of the conventional paper gripping device as described above, and to provide a paper gripping device that does not cause jams even if the paper is thin, curled, or wavy. is to provide.
課題を解決するための手段
この発明は前記のような目的を達成するために、くわえ
爪、支持部材、くわえ爪駆動用主駆動手段及びくわえ爪
による用紙の解放時その先端を持上げる補助部材を具備
した紙くわえ装置において、その補助部材を補助駆動手
段で、用紙の解放時にその先端をくわえ爪とで保持して
持上げるようにしたものである。Means for Solving the Problems In order to achieve the above objects, the present invention provides a gripping claw, a support member, a main drive means for driving the gripping claw, and an auxiliary member for lifting the leading edge of the sheet when the paper is released by the gripping claw. In the paper gripping device, the auxiliary member is adapted to be lifted by an auxiliary driving means, and the leading end of the paper is held and lifted by the gripping claw when the paper is released.
作 用
前記のような紙くわえ装置において、主駆動手段によっ
てくわえ爪と支持部材とで用紙の先端を保持した後、補
助駆動手段によってくわえ爪と補助部材とで用紙の先端
を保持し、主駆動手段によってくわえ爪が用紙解放位置
へ移動する際、補助駆動手段の作動によって、用紙の先
端はくわえ爪と補助部材とで保持されたまま持上げられ
る。Function: In the paper gripping device as described above, after the leading edge of the paper is held by the gripping claw and the supporting member by the main driving means, the leading edge of the paper is held by the gripping claw and the auxiliary member by the auxiliary driving means, and the main drive When the gripping claw is moved to the paper release position by the means, the leading edge of the paper is lifted while being held by the gripping claw and the auxiliary member by the operation of the auxiliary drive means.
実施例 °第１図ないし第４図に示す実施例について説明する。Example The embodiment shown in FIGS. 1 to 4 will be described.
１はくわえ爪、６は用紙Ｐの先端を規制するストッパを
示し、これらは主回動軸５に固定されていて、この回動
軸５は図示しない主駆動手段によって、正逆両方向に回
動されるようになっている。２はくわえ爪１と対向した
位置に固定されている支持部材で、用紙Ｐはくわえ爪１
と支持部材２とで保持されたり、それらから解放された
りする。Reference numeral 1 indicates a gripping claw, and reference numeral 6 indicates a stopper for regulating the leading edge of the paper P. These are fixed to a main rotating shaft 5, and this rotating shaft 5 is rotated in both forward and reverse directions by a main drive means (not shown). It is supposed to be done. Reference numeral 2 denotes a support member fixed at a position facing the gripping claw 1, and the paper P is attached to the gripping claw 1.
and the support member 2, or released from them.
回動軸５には、第２図に示すような補助部材３の両端に
設けられた起立部７に設けた孔８が回動可能に嵌合され
ている。この補助部材３には後記するように、くわえ爪
１との間で用紙Ｐの先端を保持し、または゛解放する保
持爪９が数個設けられている。A hole 8 provided in an upright portion 7 provided at both ends of the auxiliary member 3 as shown in FIG. 2 is rotatably fitted into the rotation shaft 5. As shown in FIG. As will be described later, this auxiliary member 3 is provided with several holding claws 9 for holding or releasing the leading edge of the paper P between the gripping claw 1 and the gripping claw 1.
起立部７には側方に長孔１１が設けられ、この長孔１１
に主回動軸５と平行に配置された補助回動軸１２に取付
けた従動アーム１３に設けたピン１４が摺嵌されている
。A long hole 11 is provided on the side of the standing portion 7, and this long hole 11
A pin 14 provided on a driven arm 13 attached to an auxiliary rotation shaft 12 arranged parallel to the main rotation shaft 5 is slidably fitted in the pin 14 .
このピン１４には第３図に示すように、リンク１６の一
端が取付けられ、このリンク１６の他端側には長孔１５
が設けられ、この長孔１５には駆動側アーム１７の一端
に設けられたピン１８が摺嵌し、ピン１４．１８間にば
ね１９が張設されていて、通常は駆動側アーム１７のピ
ン１８は、長孔１５の上端に位置している。As shown in FIG. 3, one end of a link 16 is attached to this pin 14, and a long hole 15 is attached to the other end of this link 16.
A pin 18 provided at one end of the drive side arm 17 is slidably fitted into this elongated hole 15, and a spring 19 is tensioned between the pins 14 and 18. 18 is located at the upper end of the long hole 15.
そして駆動側アーム１７の孔２０には図示しない補助駆
動手段によって正逆両方向に回動される補助駆動軸２１
が嵌合固定されている。In the hole 20 of the drive side arm 17 is an auxiliary drive shaft 21 which is rotated in both forward and reverse directions by an auxiliary drive means (not shown).
are fitted and fixed.
前記のような紙くわえ装置を枚葉オフセット印刷機にお
ける圧胴の紙くわえ装置としたものを例として以下にそ
の作用を説明する。The operation of the paper gripping device as described above will be explained below by taking as an example a paper gripping device for an impression cylinder in a sheet-fed offset printing machine.
搬送装置によって搬送された用紙Ｐの先端が解放状態に
あるくわえ爪１及びストッパ６と、圧胴と一体になって
いる支持部材２との間に送られ、ストッパ６によってそ
の位置が規制される。この場合用紙Ｐの先端が他の方法
で規制されるようになっておればストッパ６は必要がな
い。The leading edge of the paper P transported by the transport device is sent between the gripping claw 1 and the stopper 6 in the released state, and the support member 2 integrated with the impression cylinder, and its position is regulated by the stopper 6. . In this case, if the leading edge of the paper P is regulated by some other method, the stopper 6 is not necessary.
その後主駆動手段の作動によって、くわえ爪１とストッ
パ６は主回動軸５を時計方向に回動することにより、第
４図（Ａ）に示すように用紙Ｐの先端はくわえ爪１と支
持部材２とで保持される。Thereafter, by the operation of the main drive means, the gripping claw 1 and the stopper 6 rotate the main rotating shaft 5 clockwise, so that the leading edge of the paper P is supported by the gripping claw 1 as shown in FIG. 4(A). It is held by member 2.
前記のような作動が行われている際、第３図において駆
動側アーム１７が補助駆動手段による補助駆動軸２１の
反時計方向への回動により同方向へ回動し、この回動に
より従動アーム１３がばね１９を介して時計方向へ回動
させられる。これにより補助回動軸１２も時計方向へ回
動し、従動アーム１３が時計方向へ回動して、ピン１４
により補助部材３を反時計方向へ回動する。When the above-mentioned operation is performed, as shown in FIG. 3, the driving side arm 17 rotates in the same direction due to the counterclockwise rotation of the auxiliary drive shaft 21 by the auxiliary drive means, and this rotation causes the driven side arm 17 to Arm 13 is rotated clockwise via spring 19. As a result, the auxiliary rotation shaft 12 also rotates clockwise, the driven arm 13 rotates clockwise, and the pin 14 rotates clockwise.
The auxiliary member 3 is rotated counterclockwise.
このような動作の際、補助部材３の回動がくわえ爪１に
防害されるまで続けられ、このようにして防害されると
補助部材３と補助回動軸１２、従動アーム１３がそれぞ
れその移動を蔑制されて移動できなくなるが、駆動側ア
ーム１７は補助部材３を第４図（Ｂ）に示す位置に到達
するように、さらに反時計方向に回動されて、ばね１９
が引延ばされる。このようにして補助部材３にばね１９
による反時計方向の回動力が加えられることとなるが、
主駆動手段によるくわえ爪１の回動力の方が強くて、く
わえ爪１が反時計方向へ回動されることがない。During such an operation, the rotation of the auxiliary member 3 continues until the gripping claw 1 protects the auxiliary member 3 from damage, and when the auxiliary member 3 is protected from damage in this manner, the auxiliary member 3, the auxiliary rotation shaft 12, and the driven arm 13 move. However, the drive side arm 17 is further rotated counterclockwise so that the auxiliary member 3 reaches the position shown in FIG. 4(B), and the spring 19
is extended. In this way, the spring 19 is attached to the auxiliary member 3.
A counterclockwise rotational force is applied due to the
The rotational force of the gripper claw 1 by the main drive means is stronger, and the gripper claw 1 is not rotated counterclockwise.
このようにして用紙Ｐは先端を保持されて。In this way, the leading edge of the paper P is held.
圧胴の表面に巻かれた状態で、圧胴とともに回転して搬
送される。この場合シュートデリバリと呼ばれる排紙方
式では、圧胴から用紙Ｐを分離するための排紙爪があり
、くわえ爪１が排紙爪の手前で主駆動手段により反時計
方向に回動させられ、このとき補助部材３がばね１９に
よって与えられている反時計方向の回動力により、くわ
え爪１とで用紙Ｐの先端を保持したまま第４図（Ｂ）に
示すように、反時計方向に回動して用紙の先端を所定位
置まで持上げる。この際駆動側アーム１７は移動せずに
、ばね１９によって従動アーム１３とリンク１６とが駆
動側アーム１７に移動させられる。It is wound around the surface of the impression cylinder and is transported while rotating together with the impression cylinder. In this case, the paper ejection method called chute delivery has a paper ejection claw for separating the paper P from the impression cylinder, and the gripper claw 1 is rotated counterclockwise by the main drive means before the paper ejection claw. At this time, the auxiliary member 3 is rotated counterclockwise by the counterclockwise rotational force provided by the spring 19 while holding the leading edge of the paper P with the gripping claw 1, as shown in FIG. 4(B). to lift the leading edge of the paper into position. At this time, the driven arm 13 and link 16 are moved by the spring 19 to the driving arm 17 without moving the driving arm 17.
前記のように補助部材３の反時計方向への回動が、くわ
え爪１によって妨害される際、補助部材３にかかる無理
な力を吸収するために、第３図に示したような機構を採
用したが、これに代えて補助部材３の保持爪９を板ばね
のような高弾性材で形成したり、補助駆動手段の制御を
行うというような別の手段を採ってもよい。When the counterclockwise rotation of the auxiliary member 3 is obstructed by the gripping claw 1 as described above, a mechanism as shown in FIG. 3 is provided to absorb the unreasonable force applied to the auxiliary member 3. Although this is adopted, other means may be adopted instead, such as forming the holding claw 9 of the auxiliary member 3 from a highly elastic material such as a leaf spring, or controlling the auxiliary drive means.
このようにして用紙Ｐの先端が所定位置まで持上げられ
た後に、圧胴の回転によって排紙爪は、用紙Ｐと支持部
材３との間に入り込む。そして駆動側アーム１７は補助
駆動手段による補助駆動軸２１の時計方向の回動により
、リンク１６の長孔１５の上端を押上げる。その結果補
助部材３は時計方向に回動させられて、用紙Ｐの先端は
くわえ爪１と補助部材３とから解放され、このとき用紙
Ｐの先端はすてに排紙爪の上に導がれているので、ロー
ラ等によって排出される。After the leading edge of the paper P is lifted to a predetermined position in this manner, the paper discharge claw enters between the paper P and the support member 3 due to the rotation of the impression cylinder. The drive side arm 17 pushes up the upper end of the elongated hole 15 of the link 16 by clockwise rotation of the auxiliary drive shaft 21 by the auxiliary drive means. As a result, the auxiliary member 3 is rotated clockwise, and the leading edge of the paper P is released from the gripping claw 1 and the auxiliary member 3, and at this time, the leading edge of the paper P is guided onto the paper ejection claw. The paper is discharged by a roller or the like.
発明の効果
この発明は前記のようであって、くわえ爪による用紙解
放の際、その先端を持上げる補助部材を補助駆動手段に
よって、それ以前にくわえ爪とで用紙の先端を保持し、
解放時にはそのまま用紙の先端を持上げるようになって
いるので、用紙が薄紙であったり、またカールや波打ち
となっていても、確実にその先端を保持してジャムを発
生することなどがなくて円滑な排紙を行うことができ、
またチェーンデリバリと呼ばれる排紙方式や、大型印刷
機の受渡し胴のように用紙の先端を保持しながら、別の
部材によって先端を保持した後に、先に保持していた方
を解放して搬送する場合には、先端部を保持して持上げ
ることから、保持する部材間で余裕度が増して、調整す
る必要がなくなるというような効果がある。Effects of the Invention The present invention is as described above, and when the paper is released by the gripping claw, an auxiliary member for lifting the leading edge of the paper is driven by an auxiliary drive means, and before that, the leading edge of the paper is held by the gripping claw,
When the paper is released, the leading edge of the paper is lifted, so even if the paper is thin or curled or wavy, the leading edge is held securely and jams will not occur. Paper can be ejected smoothly,
There is also a paper ejecting method called chain delivery, in which the leading edge of the paper is held by another member, like the delivery cylinder of a large printing press, and then the leading edge is held by another member, and then the one that was held first is released and conveyed. In some cases, since the tip is held and lifted, there is an effect that the margin between the holding members is increased and there is no need for adjustment.
第１図はこの発明の実施例の一部の斜面図、第２図は同
上の要部の斜面図、第３図は同上のさらに他の要部の斜
面図、第４図（Ａ）（Ｂ）は同上による紙くわえ及び紙
解放時における保持部の断面図、第５，６図は従来の紙
くわえ装置の異る例の一部の説明図である。
１・・・くわえ爪、２・・・支持部材、３・・・補助部
材、５・・・主回動軸、７・・・起立部、９・・・保持
爪、１２・・・補助回動軸、１３・・・従動アーム、１
６・・・リンク、１７・・・駆動側アーム、１９・・・
ばね、２１・・・補助駆動軸。
特許出願人 株式会社 リ コ −
第３図FIG. 1 is a perspective view of a part of the embodiment of the present invention, FIG. 2 is a perspective view of the main part of the same, FIG. 3 is a perspective view of still another main part of the same, and FIG. B) is a cross-sectional view of the holding portion during paper gripping and paper release according to the above, and FIGS. 5 and 6 are explanatory diagrams of a part of different examples of the conventional paper gripping device. DESCRIPTION OF SYMBOLS 1... Gripping claw, 2... Supporting member, 3... Auxiliary member, 5... Main rotating shaft, 7... Upright part, 9... Holding claw, 12... Auxiliary rotation Driving axis, 13...driven arm, 1
6...Link, 17...Drive side arm, 19...
Spring, 21... Auxiliary drive shaft. Patent applicant Rico Co., Ltd. - Figure 3
Claims (1)
くわえ爪を駆動する主駆動手段と、くわえ爪による用紙
の解放時に、その先端を持上げる補助部材とを具えた紙
くわえ装置において、前記補助部材を駆動する補助駆動
手段を設け、補助部材は補助駆動手段によって、用紙の
解放時にくわえ爪とによって用紙の先端を保持して持上
げるようになっていることを特徴とする紙くわえ装置。1. A gripping claw, a support member that regulates the gripping claw,
A paper gripping device comprising a main driving means for driving a gripping pawl, and an auxiliary member for lifting the leading end of the paper when the gripping pawl releases the paper. A paper gripping device characterized in that, when the paper is released, the driving means holds and lifts the leading edge of the paper using gripping claws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11728389A JPH02300043A (en) | 1989-05-12 | 1989-05-12 | Sheet holding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11728389A JPH02300043A (en) | 1989-05-12 | 1989-05-12 | Sheet holding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02300043A true JPH02300043A (en) | 1990-12-12 |
Family
ID=14707914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11728389A Pending JPH02300043A (en) | 1989-05-12 | 1989-05-12 | Sheet holding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02300043A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5390600A (en) * | 1992-07-22 | 1995-02-21 | Heidelberger Druckmaschinen Ag | Sheet gripper device on a paper-guiding cylinder of a sheet-fed printing press |
-
1989
- 1989-05-12 JP JP11728389A patent/JPH02300043A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5390600A (en) * | 1992-07-22 | 1995-02-21 | Heidelberger Druckmaschinen Ag | Sheet gripper device on a paper-guiding cylinder of a sheet-fed printing press |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0798394B2 (en) | Sheet reversing device installed in a rotary printing press | |
| JP2002348022A (en) | Paper sheet ejecting device for treating flat work | |
| JPH02553A (en) | Thermal transfer color printer | |
| JP3031233U (en) | Paper ejection device for printing machine | |
| JP4106249B2 (en) | Device for turning sheet-shaped material upside down in sheet processing machine | |
| JP2000043240A (en) | Method and apparatus for delivering trailing edge of sheet by reversing unit of sheet-fed rotary press | |
| JPH0325390B2 (en) | ||
| JPH02300043A (en) | Sheet holding device | |
| JP2000062999A (en) | Method and apparatus for loading all folded printed paper sheets astride in gathering section | |
| JP4443129B2 (en) | Device for stabilizing sheet guidance in a sheet processing machine | |
| JPH05310335A (en) | Paper feeding device of paper sheet printing machine | |
| JP4774359B2 (en) | Swing device for sheet-fed printing press | |
| JP2001294354A (en) | Device for braking sample and defective sheet of sheet processing machine | |
| JPH11291452A (en) | Equipment for taking out check sheet from flier of sheet-fed press | |
| JPH1045306A (en) | Device for carrying printed product to another processing place | |
| JPH0611539B2 (en) | Paper transport device in printing machine | |
| JPS625344Y2 (en) | ||
| JPH0511242Y2 (en) | ||
| JPH06211401A (en) | Paper discharge device for paper sheet printing machine | |
| JPH11286098A (en) | Sample sheet takeout device in delivery of sheet-fed press | |
| JPH0440918Y2 (en) | ||
| JPH0613174Y2 (en) | Discharge device for sheet-fed printing press | |
| JPS5915865B2 (en) | Skew correction method in sheet feeding device | |
| JPH08188313A (en) | Printed matter conveyor | |
| JPH0653145U (en) | Paper guide device for sheet-fed printing press |