JPH057299B2 - - Google Patents
Info
- Publication number
- JPH057299B2 JPH057299B2 JP61012846A JP1284686A JPH057299B2 JP H057299 B2 JPH057299 B2 JP H057299B2 JP 61012846 A JP61012846 A JP 61012846A JP 1284686 A JP1284686 A JP 1284686A JP H057299 B2 JPH057299 B2 JP H057299B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- guide surface
- roll
- gas
- sheet conveyance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims description 24
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000003068 static effect Effects 0.000 description 18
- 230000000694 effects Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Description
本発明は、連続して搬送されるシートの搬送方
向を変換するための装置に関する。
The present invention relates to an apparatus for changing the conveyance direction of continuously conveyed sheets.
紙、プラスチツクフイルム又は金属箔等より成
るシートの搬送において、その搬送方向を無接触
状態で変換するシート搬送方向変換装置として
は、実公昭57−11971号公報及び特開昭60−93056
号公報に記載のものがある。
従来のシート搬送方向変換装置は、シート搬送
路に沿つて弯曲し且つ該シート搬送路を横断する
横断方向に長いガイド面に、ガス噴出口を開口し
たものである。ガス噴出口から噴出したガスは、
ガイド面とシートとの間にプラス静圧のガス層を
形成し、シートをガイド面から浮上させる。
A sheet conveyance direction changing device for changing the conveyance direction of a sheet made of paper, plastic film, metal foil, etc. in a non-contact state is disclosed in Japanese Utility Model Publication No. 57-11971 and Japanese Patent Laid-Open No. 60-93056.
There is something described in the publication. A conventional sheet conveyance direction changing device has a gas ejection port opened in a guide surface that is curved along a sheet conveyance path and long in a transverse direction that traverses the sheet conveyance path. The gas ejected from the gas outlet is
A gas layer with positive static pressure is formed between the guide surface and the sheet, causing the sheet to float from the guide surface.
ところで、シート搬送方向変換装置は、ガイド
面とシートとの間のガス層のプラス静圧力とシー
トの張力とをつり合せねば、シートの安定した浮
上を得ることができない。そのため、シート搬送
方向変換装置のガイド面上へ最初のシートを通す
（一般に、「通紙」という）際には、シートの張力
が非常に低く且つ安定しないために、ガス噴出口
からのガス噴出を停止しなければならない。も
し、ガス噴出をしたときには、シートのバタツキ
により、通紙中のシートが切断するからである。
しかし、ガス噴出を停止しときには、動かない
ガイド面と通紙中のシートとが接触して、シート
に大きな引つ張り抵抗を与えることにより、通紙
中のシートを切断させるという問題点を招くこと
がある。
本発明は、上記問題点を解決するために、通紙
中にはガイド面を回転自在にできるシート搬送方
向変換装置の提供を目的とする。
By the way, the sheet conveyance direction changing device cannot obtain stable floating of the sheet unless the positive static pressure of the gas layer between the guide surface and the sheet and the tension of the sheet are balanced. Therefore, when the first sheet is passed onto the guide surface of the sheet conveyance direction converting device (generally referred to as "paper passing"), the tension of the sheet is very low and unstable, so gas is ejected from the gas outlet. must be stopped. This is because if gas is ejected, the sheet being passed through will be cut due to the flapping of the sheet. However, when the gas ejection is stopped, the stationary guide surface comes into contact with the sheet being passed through, creating a large tensile resistance to the sheet, which causes the problem of cutting the sheet being passed through. Sometimes. SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, it is an object of the present invention to provide a sheet conveyance direction changing device that allows a guide surface to rotate freely during sheet feeding.
本発明が採用した手段は、シート搬送路の搬送
方向に沿つて弯曲し且つ該搬送路を横断する横断
方向に長いガイド面に、ガス噴出口を開口したシ
ート搬送方向変換装置において、回転自在に配設
され且つ外周面にガス噴出口を開口したロールの
外表面で前記ガイド面を形成し、該ロールにおけ
る前記シート搬送路と対面しない外周面を覆うシ
ール具を、覆うシール位置から覆わない待機位置
まで進退自在に配設したことを特徴とするシート
搬送方向変換装置である。
The means adopted in the present invention is a sheet conveyance direction converting device that is curved along the conveyance direction of a sheet conveyance path and has a gas jet opening in a transversely long guide surface that crosses the conveyance path. The guide surface is formed on the outer surface of a roll that is arranged and has a gas jet opening on the outer circumferential surface, and the sealing device that covers the outer circumferential surface of the roll that does not face the sheet conveyance path is on standby without being covered from the sealing position. This sheet conveyance direction changing device is characterized in that it is disposed so as to be able to move forward and backward to a desired position.
ロールは、シール具を待機位置まで後退させる
と、自在に回転する。従つて、ロールは、通紙中
のシートが接触しても、自由に回転するので、大
きな引つ張り抵抗を通紙中のシートに与えること
はない。
通紙が完了してシートの張力が安定したなら
ば、シール具をシール位置まで前進させると、シ
ート搬送路と対面するガイド面のガス噴出口から
のみガス噴出を行う。噴出したガスは、ガイド面
とシートとの間にプラス静圧のガス層を形成し、
搬送中のシートをガイド面から浮上させる。
The roll rotates freely when the sealing tool is retracted to the standby position. Therefore, even if the roll is in contact with the sheet being passed, the roll rotates freely and does not apply a large tensile resistance to the sheet being passed. When the sheet feeding is completed and the tension of the sheet is stabilized, the sealing tool is advanced to the sealing position, and gas is ejected only from the gas ejection port on the guide surface facing the sheet conveyance path. The ejected gas forms a gas layer with positive static pressure between the guide surface and the sheet,
The sheet being conveyed is lifted off the guide surface.
以下に、本発明を第１図及び第２図に示す実施
例に基づいて説明する。
本実施例は、回転自在に配設されたロール４０
と、進退自在に配設したシール具４１とを備えて
いる。
該ロール４０は、その外表面に、シート搬送路
Ｒの搬送方向に沿つて弯曲するガイド面３１及び
ガイド面３１の搬入出側縁部３１ａ，３１ｂから
延設した搬入出側静圧保持面３３，３４が形成さ
れている。そして、ロール４０は、その外周面
に、ガス噴出口３２の多数が丸孔状又はスリツト
状（図示は省略）等の任意形状に開口されてい
る。
前記シール具４１は、前記ロール４０より下方
の待機位置から上方のシール位置（図面に示す位
置）へ上下移動するように配設されている。シー
ル具４１は、上端が開口した箱状に形成され、横
断方向Ｂに沿う両上端縁部に、外曲がりの搬入側
静圧保持堰３５及び搬出側静圧保持堰３６が夫々
適宜寸法だけ突設されている。これら静圧保持堰
３５，３６は、シール具４１を上方のシール位置
へ移動したときに、前記搬入出側静圧保持面３
３，３４の各縁部３３ａ，３４ａから外方へ突設
する。
更にシール具４１は、開口周縁部の適所にゴム
等からなるシール材４２が取付けられている。シ
ール具４１は、シール具４１を上方のシール位置
へ移動したときに、前記ロール４０におけるシー
ト搬送路Ｒと対面しなの外周面の領域Ｃを覆い、
この領域Ｃのガス噴出口３２，３２…からシール
具４１の外部へガスが漏洩しないようにしてあ
る。なお、シール具４１は、内部に、必要に応じ
て、補強リブ４１ａ，４１ａ…が配され、前記両
静圧保持堰３５，３６の間隔が、内部に噴出した
ガス圧力に影響されることなく一定寸法を維持す
るようにしてある。
次に、本実施例の動作を説明する。先ず、ガイ
ド面３１上へシートＳを通紙する際には、ガス噴
出口３２，３２…からのガス噴出を停止すると共
に、シール具４１をエアーシリンダー等からなる
上下操作手段４３にて下方の待機位置で待機させ
る。シートＳは、回転自在なロール４０のガイド
面３１に接触しなら案内され、スムーズに導かれ
て通紙する。シートＳの通紙が完了したならば、
シール具４１を上下操作手段４３にて上方のシー
ル位置へ上昇させてシール具４１でロール４０の
外周面を覆つた後、ロール４０内へガスを導く。
一定張力状態下で搬送されているシートＳは、ガ
ス噴出口３２，３２…から噴出したガスにより、
ガイド面３１及び両静圧保持面３３，３４から浮
上した状態で支持される。
ガス噴出口３２，３２…から噴出したガスは、
ガイド面３１とシートＳとの間にプラス静圧のガ
ス層を形成し、搬入側静圧保持面３３又は搬出側
静圧保持面３４を通過した後、その移動が搬入側
静圧保持堰３５又は搬出側静圧保持堰３６で阻止
されているので、両静圧保持面３３，３４とシー
トＳとの間にプラス静圧の圧縮ガス層を形成し、
両静圧保持堰３５，３６の先端３５ａ，３６ａか
らシートＳを離反させつつ、両静圧保持堰３５，
３６の先端３５ａ，３６ａとシートＳとの間に形
成した広い排出間隙部３７，３８から外部へ低風
速状態で放出される。
The present invention will be explained below based on the embodiments shown in FIGS. 1 and 2. In this embodiment, a roll 40 rotatably disposed
and a sealing tool 41 arranged to be movable forward and backward. The roll 40 has a guide surface 31 curved along the conveyance direction of the sheet conveyance path R and a carry-in/out side static pressure holding surface 33 extending from the carry-in/out side edges 31a, 31b of the guide surface 31 on its outer surface. , 34 are formed. The roll 40 has a large number of gas jet ports 32 opened in an arbitrary shape such as a round hole shape or a slit shape (not shown) on its outer peripheral surface. The sealing tool 41 is arranged to move vertically from a standby position below the roll 40 to a sealing position above (the position shown in the drawing). The sealing tool 41 is formed in a box shape with an open upper end, and an outwardly curved loading-side static pressure holding weir 35 and unloading-side static pressure holding weir 36 are respectively protruded by appropriate dimensions at both upper end edges along the transverse direction B. It is set up. These static pressure holding weirs 35 and 36 are connected to the loading/unloading side static pressure holding surface 3 when the sealing tool 41 is moved to the upper sealing position.
3 and 34 protrude outward from the respective edges 33a and 34a. Further, the sealing member 41 has a sealing material 42 made of rubber or the like attached to a suitable position on the periphery of the opening. The sealing tool 41 covers a region C of the outer peripheral surface of the roll 40 facing the sheet conveyance path R when the sealing tool 41 is moved to the upper sealing position,
Gas is prevented from leaking to the outside of the sealing tool 41 from the gas jet ports 32, 32, . . . in this region C. In addition, the sealing tool 41 is provided with reinforcing ribs 41a, 41a, . It is designed to maintain constant dimensions. Next, the operation of this embodiment will be explained. First, when passing the sheet S onto the guide surface 31, the gas jets from the gas jet ports 32, 32, etc. are stopped, and the sealing tool 41 is moved downward by the vertical operation means 43, such as an air cylinder. Wait at the standby position. The sheet S is guided by contacting the guide surface 31 of the rotatable roll 40, and is smoothly guided and passed. Once the sheet S has been passed,
After the sealing tool 41 is raised to an upper sealing position by the vertical operation means 43 and the outer peripheral surface of the roll 40 is covered with the sealing tool 41, gas is introduced into the roll 40.
The sheet S being conveyed under a constant tension state is
It is supported in a floating state from the guide surface 31 and both static pressure holding surfaces 33 and 34. The gas ejected from the gas ejection ports 32, 32...
A gas layer of positive static pressure is formed between the guide surface 31 and the sheet S, and after passing through the carry-in side static pressure holding surface 33 or the carry-out side static pressure holding surface 34, the movement is caused by the carrying-in side static pressure holding weir 35. Or, since it is blocked by the unloading side static pressure holding weir 36, a compressed gas layer of positive static pressure is formed between both static pressure holding surfaces 33, 34 and the sheet S,
While separating the sheet S from the tips 35a, 36a of both static pressure holding weirs 35, 36, both static pressure holding weirs 35,
The air is discharged to the outside from wide discharge gaps 37 and 38 formed between the tips 35a and 36a of 36 and the sheet S at a low wind speed.
以上詳述の如く、本発明は、次の如き優れた効
果を有する。
シートを通紙する際には、回転自在な状態の
ロールにシートを案内させることができるの
で、シートに大きな引つ張り抵抗を与えること
がない。その結果、本発明は、引張り強度の弱
いシートであつても、切断等のアクシデエント
なしに安定した通紙を行わせることができる。
シール具で覆つた領域から外部へ、シートの
安定走行に悪影響を及ぼすガスの漏洩が無い。
その結果、本発明は、シートを安定した状態で
搬送方向の変換を行わせることができる。
As detailed above, the present invention has the following excellent effects. When the sheet is passed through, the sheet can be guided by rotatable rolls, so that no large tensile resistance is applied to the sheet. As a result, according to the present invention, even sheets with low tensile strength can be stably fed without accidents such as cutting. There is no leakage of gas from the area covered by the sealing device to the outside, which would adversely affect the stable running of the seat.
As a result, according to the present invention, the conveying direction of the sheet can be changed in a stable state.
第１図は本発明に係るシート搬送方向変換装置
の実施例の要部をシート搬送路を横断する方向に
沿つて断面した正面断面図、第２図は同上の断面
側面図である。
３１……ガイド面、３２……ガス噴出口、４０
……ロール、４１……シール具、Ｒ……搬送路、
Ｂ……横断方向。
FIG. 1 is a front cross-sectional view of a main part of an embodiment of a sheet conveyance direction converting device according to the present invention taken along a direction transverse to a sheet conveyance path, and FIG. 2 is a cross-sectional side view of the same. 31...Guide surface, 32...Gas outlet, 40
... Roll, 41 ... Seal tool, R ... Conveyance path,
B...Transverse direction.
Claims (1)
該搬送路を横断する横断方向に長いガイド面に、
ガス噴出口を開口したシート搬送方向変換装置に
おいて、回転自在に配設され且つ外周面にガス噴
出口を開口したロールの外表面で前記ガイド面を
形成し、該ロールにおける前記シート搬送路と対
面しない外周面を覆うシール具を、覆うシール位
置から覆わない待機位置まで進退自在に配設した
ことを特徴とするシート搬送方向変換装置。1. A guide surface curved along the conveyance direction of the sheet conveyance path and long in the transverse direction that crosses the conveyance path,
In a sheet conveyance direction changing device having a gas outlet, the guide surface is formed on the outer surface of a roll that is rotatably disposed and has a gas outlet opened on its outer peripheral surface, and faces the sheet conveyance path in the roll. 1. A sheet conveyance direction converting device characterized in that a sealing device that covers an outer circumferential surface that is not covered is movable back and forth from a sealing position where it is covered to a standby position where it is not covered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1284686A JPS62171855A (en) | 1986-01-22 | 1986-01-22 | Sheet conveying direction converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1284686A JPS62171855A (en) | 1986-01-22 | 1986-01-22 | Sheet conveying direction converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62171855A JPS62171855A (en) | 1987-07-28 |
| JPH057299B2 true JPH057299B2 (en) | 1993-01-28 |
Family
ID=11816755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1284686A Granted JPS62171855A (en) | 1986-01-22 | 1986-01-22 | Sheet conveying direction converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62171855A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH066341U (en) * | 1992-06-26 | 1994-01-25 | 三菱重工業株式会社 | Web guide roll |
| US6505792B1 (en) * | 2000-11-28 | 2003-01-14 | Megtec Systems, Inc. | Non-contact floating device for turning a floating web |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56127535A (en) * | 1980-02-11 | 1981-10-06 | Grace W R & Co | Web bending guiding apparatus |
| JPS5711971U (en) * | 1980-06-23 | 1982-01-21 | ||
| JPS6093056A (en) * | 1983-10-27 | 1985-05-24 | Konishiroku Photo Ind Co Ltd | Direction converting device for web feed |
| JPS60193154A (en) * | 1983-12-12 | 1985-10-01 | バロ−ス・コ−ポレ−シヨン | Method of supporting and guiding pneumatic bearing means andmobile belt portion |
-
1986
- 1986-01-22 JP JP1284686A patent/JPS62171855A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56127535A (en) * | 1980-02-11 | 1981-10-06 | Grace W R & Co | Web bending guiding apparatus |
| JPS5711971U (en) * | 1980-06-23 | 1982-01-21 | ||
| JPS6093056A (en) * | 1983-10-27 | 1985-05-24 | Konishiroku Photo Ind Co Ltd | Direction converting device for web feed |
| JPS60193154A (en) * | 1983-12-12 | 1985-10-01 | バロ−ス・コ−ポレ−シヨン | Method of supporting and guiding pneumatic bearing means andmobile belt portion |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62171855A (en) | 1987-07-28 |
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