JP2807243B2 - Papermaking method and its apparatus - Google Patents
Papermaking method and its apparatusInfo
- Publication number
- JP2807243B2 JP2807243B2 JP63326744A JP32674488A JP2807243B2 JP 2807243 B2 JP2807243 B2 JP 2807243B2 JP 63326744 A JP63326744 A JP 63326744A JP 32674488 A JP32674488 A JP 32674488A JP 2807243 B2 JP2807243 B2 JP 2807243B2
- Authority
- JP
- Japan
- Prior art keywords
- wire
- suction
- air
- stock
- nip portion
- 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 - Fee Related
Links
Landscapes
- Paper (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は抄紙方法及びその装置に関するものである。Description: TECHNICAL FIELD The present invention relates to a papermaking method and an apparatus therefor.
［従来の技術］ 第５図は抄紙装置におけるワイヤパート部の一例を示
すもので、図示しないヘッドボックスから一方のワイヤ
（ボトムワイヤ）１上に供給された紙料２が矢印で示す
ように搬送され、一方ドラム３に支持された他方のワイ
ヤ（トップワイヤ）４がスライスデフレクター装置５に
導かれて前記紙料２上に重ねられることによってニップ
部６が形成され、その後紙料２は両面をワイヤ1,4にて
挾持された状態で後方のサクションロール７等に導かれ
るようになっている。[Prior Art] FIG. 5 shows an example of a wire part in a papermaking apparatus. A stock 2 supplied from a head box (not shown) onto one wire (bottom wire) 1 is transported as shown by an arrow. The other wire (top wire) 4 supported by the one drum 3 is guided to a slice deflector device 5 and overlapped on the stock 2 to form a nip portion 6, after which the stock 2 is coated on both sides. It is guided to the rear suction roll 7 and the like while being held by the wires 1 and 4.
［発明が解決しようとする課題］ しかし、近年、抄紙装置の高速化が進み、そのために
第６図に示すように、ワイヤ1,4及び紙料２の移動に伴
ってその周辺の空気が連れ回り（連れられて一緒に移動
すること）し、このためにワイヤ４のニップ側内面及び
紙料２上面によって連れ回りされた空気A1がニップ部６
に向かうことになる。A2はワイヤ４の外側面によって連
れ回りする空気を示す。[Problems to be Solved by the Invention] However, in recent years, the speed of the papermaking apparatus has been increased, and as a result, as shown in FIG. The air A 1 moves around (moves together with the nip portion) and the air A 1 entrained by the inner surface of the wire 4 on the nip side and the upper surface of the stock 2 causes the nip portion 6.
Will be headed to. A 2 indicates air entrained by the outer surface of the wire 4.
このため、ニップ部６に向かう空気A1は楔形状部に押
し込まれ、行き場を失って紙料２の幅方向に流れようと
し、この空気A1の幅方向の流れが流動性のある紙料２を
幅方向に押し流すこととなって抄造された紙のプロファ
イルを悪化させる問題を生じていた。Therefore, the air A 1 toward the nip portion 6 is pressed into the wedge-shaped portion, and tends to flow in the width direction of the stock 2 nowhere to go, stock width direction of flow of the air A 1 is a flowable 2 has been caused to flow away in the width direction, thereby causing a problem of deteriorating the profile of the paper made.
本発明は、上記従来の問題点に着目してなしたもの
で、連れ回りによってニップ部に向かう空気を吸引除去
することにより、連れ回り空気により紙料が幅方向へ押
し流されることによる悪影響を防水することを目的とし
ている。The present invention has been made in view of the above-mentioned conventional problems. By sucking and removing air directed toward the nip portion by entrainment, the adverse effect of the paper material being swept away in the width direction by entrained air is waterproofed. It is intended to be.
［課題を解決するための手段］ 本発明は、一方のワイヤ上に供給されて搬送されて来
る紙料を上面から他方のワイヤによりニップして脱水す
るニップ部の直前位置における他方のワイヤの上側外面
に接近した位置にて、連れ回りにより前記ニップ部に向
う空気を吸引除去することを特徴とする抄紙方法、及び
その装置、に係るものである。Means for Solving the Problems According to the present invention, a stock supplied and conveyed on one wire is nipped from the upper surface by the other wire and dewatered, and the upper side of the other wire at a position immediately before the nip portion for dewatering. The present invention relates to a papermaking method and an apparatus therefor, characterized in that at a position close to the outer surface, air directed toward the nip portion by suction is removed by suction.
［作用］ ワイヤ及び紙料の移動によって連れ回る空気をニップ
部直前で吸引除去すると、紙料は幅方向への流れを生じ
ることなく安定してワイヤによりニップされ、よって高
速抄紙時における紙のプロファイルが向上される。[Operation] When the air entrained by the movement of the wire and the stock is removed by suction immediately before the nip, the stock is stably nipped by the wire without causing a flow in the width direction, and thus the paper profile during high-speed papermaking. Is improved.
［実 施 例］ 以下、本発明の実施例を図面を参照しつつ説明する。[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例であり、図中第５、６図と
同一の符号を付した部分は同一物を表わしている。FIG. 1 shows an embodiment of the present invention, in which parts denoted by the same reference numerals as in FIGS. 5 and 6 represent the same parts.
図示するように、一方のワイヤ１上に供給されて搬送
されて来る紙料２をスライスデフレクター装置５によっ
て押付けられた他方のワイヤ４によってニップするニッ
プ部６の直前位置に、前記他方のワイヤ４の外側面に近
接し、且つ紙料２の幅方向に長く延びて開口する吸引８
を有した空気吸引ヘッダ９を設ける。As shown in the drawing, a position immediately before a nip portion 6 where the stock 2 supplied and conveyed on one wire 1 is nipped by the other wire 4 pressed by the slice deflector device 5 is provided. 8 which is close to the outer surface of the paper 2 and which extends and opens in the width direction of the stock 2.
Is provided.
上記した空気吸引ヘッダ９を設置して吸引口８から吸
引を行うと、ワイヤ４及び紙料２上面の移動に伴って生
じる連れ回り空気A1、A2をニップ部６直前で吸引除去す
ることができ、従ってニップ部６に向った連れ回り空気
A1が行き場を失って幅方向に流れることにより紙料２を
幅方向に押し流すことによって生じるプロファイルの悪
化の問題を防止できる。When the above-described air suction header 9 is installed and suction is performed from the suction port 8, the entrained air A 1 and A 2 generated due to the movement of the wire 4 and the upper surface of the stock 2 are removed by suction immediately before the nip portion 6. And thus the entrained air towards the nip 6
A 1 can be prevented from deterioration problems of the profile caused by sweep away stock 2 in the width direction by flowing in the width direction nowhere to go.
第２図は本発明の他の実施例を示すもので、前記空気
吸引ヘッダ９の形状を、ワイヤ1,4の移動方向に２段に
分割した２つの吸引口10,11と２つのヘッダ室12,13で構
成した空気吸引ヘッダ14としている。FIG. 2 shows another embodiment of the present invention, in which the shape of the air suction header 9 is divided into two suction ports 10, 11 divided into two stages in the moving direction of the wires 1, 4, and two header chambers. An air suction header 14 composed of 12, 13 is provided.
この実施例においては、まず第１段の吸引口10でワイ
ヤ４の外側の連れ回り空気A2を吸引し、その後第２段の
吸引口11でニップ部６に向かう連れ回り空気A1を吸引す
るようにしているので、ニップ部６に向かう空気A1の吸
引除去効果を更に向上させることができる。In this embodiment, first, the accompanying rotation air A 2 outside the wire 4 at the suction port 10 of the first stage with suction, suck the accompanying rotation air A 1 then toward the nip 6 in the second stage of the suction ports 11 since the way, it is possible to further improve the suction effect of removing air a 1 toward the nip 6.
第３図は、前記スライスデフレクター装置５により形
成されるニップ部６を有した場合に代えて、ロール15に
よるニップ部６を有した場合の適用例を示すもので、こ
の場合も第１図に示した１つの吸引口８を有する空気吸
引ヘッダ９、或いは第２図に示す２段の吸引口10,11を
有する空気吸引ヘッダ14のいずれも適用することができ
る。FIG. 3 shows an application example in which the nip 6 formed by the roll 15 is used instead of the nip 6 formed by the slice deflector device 5, and this case is also shown in FIG. Either the air suction header 9 having one suction port 8 shown or the air suction header 14 having two suction ports 10 and 11 shown in FIG. 2 can be applied.
第４図は本発明の更に他の実施例を示すもので、一方
のワイヤ上に供給されて搬送されて来る紙料２をサクシ
ョンロール16に巻かれた他方のワイヤ４によってニップ
することによってニップ部６が形成される構成におい
て、前記サクションロール16内部に、前記ニップ部６の
直前位置に対応するようにサクションロール16の内周面
に近接し、且つ該サクションロール16の軸方向に長く延
びて開口する吸引口17を有した空気吸引ヘッダ18を設け
る。FIG. 4 shows still another embodiment of the present invention, in which the stock 2 supplied and conveyed on one wire is nipped by the other wire 4 wound on a suction roll 16. In the configuration in which the portion 6 is formed, the suction roll 16 is provided with a portion extending in the axial direction of the suction roll 16 in the vicinity of the inner peripheral surface of the suction roll 16 so as to correspond to a position immediately before the nip portion 6. An air suction header 18 having a suction port 17 that is opened by the air suction is provided.
この実施例では、ニップ部６に向かう連れ回りによる
空気A1をサクションロール16のシェルに形成される吸水
口19を介して、空気吸引ヘッダ18が吸引することにな
る。In this embodiment, through the water inlet 19 formed of air A 1 by drag motion toward the nip 6 in the shell of the suction roll 16, so that the air suction header 18 is sucked.
尚、本発明の抄紙方法及びその装置は、上述の実施例
にのみ限定されるものではなく、種々の抄紙装置に適用
し得ること、その他本発明の要旨を逸脱しない範囲内に
おいて種々変更を加え得ることは勿論である。The papermaking method and the apparatus thereof according to the present invention are not limited to the above-described embodiments, but may be applied to various papermaking apparatuses, and may be variously modified without departing from the gist of the present invention. Obviously you can get it.
［発明の効果］ 以上説明したように、本発明の抄紙方法及びその装置
によれば、ワイヤ及び紙料の移動によって連れ回りニッ
プ部に向かおうとする空気をニップ部直前で吸引除去す
るようにしているので、ニップ部に向かう空気が行き場
を失って幅方向に流れ、紙料を幅方向に押し流すことに
よって生じていたプロファイルの悪化の問題を防止し、
高速化時の紙の品質の安定化を図れる優れた効果を奏し
得る。[Effects of the Invention] As described above, according to the papermaking method and the apparatus thereof of the present invention, air moving toward the nip portion following the movement of the wire and the stock is sucked and removed just before the nip portion. Because, the air heading to the nip loses its place to go and flows in the width direction, preventing the problem of profile deterioration caused by pushing away the stock in the width direction,
An excellent effect of stabilizing the quality of paper at the time of high speed can be achieved.
第１図は本発明の一実施例を示す側面図、第２図は本発
明の他の実施例を示す側面図、第３図は本発明の他の抄
紙装置への適用例を示す側面図、第４図は本発明の更に
他の実施例を示す側面図、第５図は従来の抄紙装置の一
例を示す側面図、第６図は第５図の一部を拡大して作用
を示した側面図である。 １はワイヤ、２は紙料、４はワイヤ、５はスライスデフ
レクター装置、６はニップ部、8,10,11,17は吸引口、9,
14,18は空気吸引ヘッダ、16はサクションロールを示
す。FIG. 1 is a side view showing one embodiment of the present invention, FIG. 2 is a side view showing another embodiment of the present invention, and FIG. 3 is a side view showing an example of application of the present invention to another papermaking apparatus. FIG. 4 is a side view showing still another embodiment of the present invention, FIG. 5 is a side view showing an example of a conventional papermaking apparatus, and FIG. 6 is an enlarged view of a part of FIG. FIG. 1 is a wire, 2 is a stock, 4 is a wire, 5 is a slice deflector device, 6 is a nip portion, 8, 10, 11, 17 are suction ports, 9,
14 and 18 indicate an air suction header, and 16 indicates a suction roll.
Claims (4)
る紙料を上面から他方のワイヤによりニップして脱水す
るニップ部の直前位置における他方のワイヤの上側外面
に接近した位置にて、連れ回りにより前記ニップ部に向
う空気を吸引除去することを特徴とする抄紙方法。1. A position close to an upper outer surface of the other wire at a position immediately before a nip portion for nipping and dewatering a stock supplied and conveyed on one wire by the other wire from the upper surface. A papermaking method, wherein air directed toward the nip is removed by suction.
る紙料を上面から他方のワイヤによりニップして脱水す
る抄紙装置のニップ部と直前位置に、前記他方のワイヤ
の上側外面に接近し紙料の幅方向に延びて開口する吸引
口を有した空気吸引ヘッダを設けたことを特徴とする抄
紙装置。2. A nip portion of a papermaking apparatus for nipping paper material supplied and conveyed on one wire from the upper surface by the other wire and dewatering the paper material, and approaching the upper outer surface of the other wire. A papermaking apparatus comprising an air suction header having a suction port that extends and opens in the width direction of paper stock.
に２段に分割された２つの吸引口と２つのヘッダ室から
構成されている請求項２に記載の抄紙装置。3. The papermaking apparatus according to claim 2, wherein said air suction header is composed of two suction ports and two header chambers divided into two stages in the moving direction of the wire.
る紙料をサクションロールに巻かれた他方のワイヤによ
り上面からニップして脱水する抄紙装置の前記サクショ
ンロールの内部に、前記両ワイヤによる紙料のニップ部
の直前位置において、前記サクションロールの内周面に
接近し、該サクションロールの軸方向に延びて開口する
吸引口を有した空気吸引ヘッダを設けたことを特徴とす
る抄紙装置。4. The papermaking apparatus according to claim 1, wherein the paper material supplied and conveyed on one wire is nipped from the upper surface by the other wire wound on the suction roll and dewatered. Paper making machine provided with an air suction header having a suction port which is close to the inner peripheral surface of the suction roll, extends in the axial direction of the suction roll, and opens at a position immediately before the nip portion of the stock. apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63326744A JP2807243B2 (en) | 1988-12-24 | 1988-12-24 | Papermaking method and its apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63326744A JP2807243B2 (en) | 1988-12-24 | 1988-12-24 | Papermaking method and its apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02175988A JPH02175988A (en) | 1990-07-09 |
| JP2807243B2 true JP2807243B2 (en) | 1998-10-08 |
Family
ID=18191194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63326744A Expired - Fee Related JP2807243B2 (en) | 1988-12-24 | 1988-12-24 | Papermaking method and its apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2807243B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3131957A1 (en) * | 1981-07-24 | 1983-02-10 | Escher Wyss Gmbh, 7980 Ravensburg | DRAINAGE UNIT FOR LONG SCREEN PAPER MACHINES |
| JPS61198299U (en) * | 1985-05-27 | 1986-12-11 |
-
1988
- 1988-12-24 JP JP63326744A patent/JP2807243B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02175988A (en) | 1990-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |