JP2002200591A - Device for eliminating paper powder - Google Patents
Device for eliminating paper powderInfo
- Publication number
- JP2002200591A JP2002200591A JP2000397252A JP2000397252A JP2002200591A JP 2002200591 A JP2002200591 A JP 2002200591A JP 2000397252 A JP2000397252 A JP 2000397252A JP 2000397252 A JP2000397252 A JP 2000397252A JP 2002200591 A JP2002200591 A JP 2002200591A
- Authority
- JP
- Japan
- Prior art keywords
- air
- paper
- continuous paper
- roll
- speed
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、製紙工場や印刷工
場において用いる紙表面に付着した紙粉を除去する方法
とその装置に関する発明である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for removing paper dust attached to a paper surface used in a paper mill or a printing factory.
【０００２】[0002]
【従来の技術】製紙工場では、紙の原料であるパルプを
抄紙機にかけて紙を製造する。抄紙機では、生産性を高
めるために、抄紙機の抄紙速度を上げるとともに、紙幅
及び巻き取り長さを大きくしてきた。最近では、紙幅が
８ｍに及ぶものある。一方需要者である新聞社、印刷会
社、包装資材会社では、そのような広幅で大きな径の巻
き取りを扱う機械装置を所有していない。また、製紙工
場からこれら需要者に紙を輸送する際にも、そのような
広幅のものは扱いにくい。2. Description of the Related Art In a paper mill, pulp, which is a raw material of paper, is passed through a paper machine to produce paper. In the paper machine, in order to increase productivity, the paper making speed of the paper machine has been increased, and the paper width and the winding length have been increased. Recently, paper widths have reached 8 m. On the other hand, consumers such as newspaper companies, printing companies, and packaging material companies do not have machinery for handling such wide and large-diameter winding. Also, when transporting paper from a paper mill to these consumers, such wide ones are difficult to handle.
【０００３】従って、製紙工場では、マシンリールで巻
き取られた全幅大径巻き取りを需要者の所有する印刷機
等の機械能力に合わせて、適当な幅及び径の巻き取りに
加工したり、所定の寸法の小判に裁断して出荷してい
る。こうして、需要者に向けて出荷される紙には、少な
からず紙粉が付着している。これら紙粉は、紙を抄く工
程で多く発生する。例えば、抄紙機のドライヤー内で紙
切れが発生したとき、紙の細片がドライヤー内に飛散、
浮遊し、或いはドライヤーのフレーム等ドライヤー内部
に付着していたものが、紙面に落下し紙粉となる場合
等、その発生原因は多岐にわたる。紙粉の付着した紙を
印刷用途に用いると、平版印刷であるオフセット印刷に
おいてはブランケット上に堆積して画像を乱すパイリン
グを引き起こし、スポットと呼ばれる印刷物の画線部に
白抜けを起こしたりする。凹版印刷であるグラビア印刷
においても版面に付着し、版面が汚れて印刷面を汚す。[0003] Therefore, in a paper mill, the full-width, large-diameter winding wound on a machine reel is processed into a winding having an appropriate width and diameter in accordance with the machine capacity of a printing machine or the like owned by a consumer. They are cut into small-sized oval pieces and shipped. Thus, the paper shipped to the consumer has a considerable amount of paper dust attached thereto. These paper dusts are often generated during the papermaking process. For example, when paper breaks in the dryer of a paper machine, small pieces of paper scatter in the dryer,
There are a variety of causes, for example, when floating or adhering to the inside of the dryer such as the frame of the dryer falls on the paper and becomes paper powder. If the paper to which the paper dust is adhered is used for printing, offset printing, which is lithographic printing, causes piles that accumulate on a blanket to disturb the image, causing white spots in image areas of printed matter called spots. Even in gravure printing, which is intaglio printing, it adheres to the plate surface, and the plate surface becomes dirty, thereby soiling the printing surface.
【０００４】上記問題点を解決する手段として、特開平
１−１３６７４８号公報には、印刷機の前で紙に向けて
コロナ放電により紙粉に帯電した電荷を中和し、紙粉が
紙から離脱しやすくしたうえ、紙粉を粘着ロールに付着
させて紙から除去する方法が開示されている。その他、
回転ブラシにより強制的に除去する方法も知られてい
る。As means for solving the above-mentioned problems, Japanese Patent Application Laid-Open No. 1-136748 discloses a technique in which a corona discharge neutralizes a charge charged on paper powder toward a paper in front of a printing machine, and the paper powder is discharged from the paper. There is disclosed a method for removing paper from paper by making the paper powder easily detachable and attaching paper powder to an adhesive roll. Others
There is also known a method of forcibly removing with a rotating brush.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、粘着ロ
ールによる方法は、粘着ロールに紙粉が蓄積すると除去
効果が低下するので、絶えず粘着ロールを再生しなけれ
ばならないという煩わしさがある。回転ブラシによる方
法は、硬い毛のブラシを用いると紙面を毛羽立たせて印
刷面に悪影響を及ぼし、柔らかい毛のブラシを用いる
と、紙粉除去効果が低くなる等、ブラシの毛の選択が難
しい。本発明は、上記問題点を解決しようとするもので
ある。However, in the method using an adhesive roll, since the removal effect is reduced when paper dust accumulates on the adhesive roll, there is a trouble that the adhesive roll must be constantly regenerated. In the method using a rotating brush, it is difficult to select the bristles of a brush, for example, when a brush with a hard bristle is used to make the paper surface fluffy and adversely affect the printing surface, and when a brush with a soft bristle is used, the effect of removing paper dust is reduced. The present invention seeks to solve the above problems.
【０００６】[0006]
【課題を解決するための手段】即ち、連続紙から紙粉を
除去する装置であって、連続紙の走行路に設置されたロ
ールに連続紙が接する位置において、連続紙の走行方向
と反対方向から連続紙の表面に高速エアが吐出するよう
に高速エア吐出口を臨ませ、連続紙の表面から反射する
エアとともに連続紙から離脱する紙粉を吸引口から吸引
することを特徴とする。以下に、本発明の実施例である
図面に基づいて詳しく説明する。That is, an apparatus for removing paper dust from continuous paper, which is in a direction opposite to the running direction of the continuous paper at a position where the continuous paper comes into contact with a roll installed on a running path of the continuous paper. The high-speed air discharge port faces the surface of the continuous paper so that the high-speed air is discharged from the surface of the continuous paper, and the air reflected from the surface of the continuous paper and the paper powder detached from the continuous paper are sucked from the suction port. Hereinafter, the present invention will be described in detail with reference to the drawings, which are embodiments of the present invention.
【０００７】図中、Ｓは連続紙Ｓ（以下、単に紙ともい
う）で矢印の方向に走行している。Ｒはガイドロール、
ターニングロール等のロールであり、紙Ｓとの摩擦力に
より自由回転又は電動機等の駆動動力源により回転して
いる。１は加圧エア管であり、一端又は両端が高圧ホー
スを介して加圧エア供給源と連結している。そして、加
圧エア管１は、図２に示すように、エアガン４の内部に
納められ、複数のエア噴出ノズル２からエア吐出口３に
向けて高速エアを吐出している。エア吐出口３から吐出
したエアは、連続紙Ｓの走行方向と反対方向から連続紙
の表面に吐出される。５は吸引フードであり、連続紙Ｓ
から反射したエアを臨む位置に設けられており、図示し
ない集塵機に連結している。６はエアガン４と吸引フー
ド５を支えるバーであって、両端が図示しない移動機構
に支えられ、ロールＲと平行状態を維持したまま、ロー
ルＲに近接又はロールＲから離脱可能な構造となってい
る。また、バー６はその軸回りに回動自在で、図示しな
い手動又は駆動装置により、回動、停止させ、エア吐出
口３から吐出する高速エアのロールＲに対する吐出角度
を調整することができる。In FIG. 1, S is a continuous paper S (hereinafter simply referred to as paper) running in the direction of the arrow. R is a guide roll,
This is a roll such as a turning roll, and is rotated freely by a frictional force with the paper S or by a driving power source such as an electric motor. Reference numeral 1 denotes a pressurized air pipe, one end or both ends of which are connected to a pressurized air supply source via a high-pressure hose. As shown in FIG. 2, the pressurized air pipe 1 is housed inside an air gun 4, and discharges high-speed air from a plurality of air ejection nozzles 2 toward an air discharge port 3. The air discharged from the air discharge ports 3 is discharged to the surface of the continuous paper S from a direction opposite to the running direction of the continuous paper S. Reference numeral 5 denotes a suction hood, which is a continuous paper S
It is provided at a position facing the air reflected from the camera, and is connected to a dust collector (not shown). Reference numeral 6 denotes a bar for supporting the air gun 4 and the suction hood 5, both ends of which are supported by a moving mechanism (not shown), and which has a structure capable of approaching or detaching from the roll R while maintaining a parallel state with the roll R. I have. Further, the bar 6 is rotatable around its axis, and can be rotated and stopped by a manual or driving device (not shown) to adjust the discharge angle of the high-speed air discharged from the air discharge port 3 with respect to the roll R.
【０００８】図１に示すように、高速エアは連続紙Ｒの
走行方向と反対方向から連続紙表面に吐出する。図１に
おいて、連続紙Ｓの走行方向（矢印）即ち長さ方向を
Ｘ、連続紙Ｓの紙面と垂直な方向をＹ、連続紙Ｓの幅方
向をＺとすれば、連続紙Ｓの走行方向と反対の方向と
は、Ｘ−Ｙ平面において、連続紙Ｓに向かって、α＝０
から９０°以下で交差する方向である。連続紙は、最も
高速な抄紙機の場合、１２００ｍ／分即ち約２０ｍ／ｓ
ｅｃで走行しており、コーターの場合は、最高１５００
ｍ／分で走行している。連続紙は、ロールＲに接触する
と、ロールＲに沿って走行するため、紙面に付着してい
る紙粉には大きな遠心力がかかる。例えば、ロール半径
を０．３ｍとすると、２０ｍ／ｓｅｃ（１２００ｍ／
分）で走行している場合、遠心力の計算式Ｖ２／ｒか
ら、２０ｍ／ｓｅｃ×２０ｍ／ｓｅｃ÷０．３ｍ＝１３
３０ｍ／ｓｅｃ２であり、この値は重力９．８ｍ／ｓｅ
ｃ２の約１４０倍である。As shown in FIG. 1, high-speed air is discharged onto the continuous paper surface from a direction opposite to the running direction of the continuous paper R. In FIG. 1, if the running direction (arrow) of the continuous paper S, that is, the length direction is X, the direction perpendicular to the paper surface of the continuous paper S is Y, and the width direction of the continuous paper S is Z, the running direction of the continuous paper S The opposite direction is defined as α = 0 toward the continuous paper S on the XY plane.
It is a direction that intersects at 90 ° or less. Continuous paper is 1200 m / min or about 20 m / s for the fastest paper machines.
ec and in the case of a coater, up to 1500
It is running at m / min. When the continuous paper comes into contact with the roll R, the continuous paper runs along the roll R, so that a large centrifugal force is applied to the paper powder attached to the paper surface. For example, if the roll radius is 0.3 m, 20 m / sec (1200 m / sec)
Min), from the centrifugal force calculation formula V 2 / r, 20 m / sec × 20 m / sec ÷ 0.3 m = 13
30 m / sec 2 and this value is 9.8 m / sec.
It is about 140 times that of c 2.
【０００９】本発明は、上記のように紙粉にかかる遠心
力をも利用するものである。走行する連続紙Ｓのごく表
面に近い部分には、連続紙Ｓの走行に伴って発生する走
行方向に沿った気流が流れる。そのため、紙面から離脱
しようとする紙粉はその気流により離脱しにくくなって
いると考えられる。本発明は、遠心力により紙面から離
脱しようとする紙粉に対して、走行方向と反対方向から
高速エアを吐出させ、連続紙Ｓの走行方向に沿って流れ
る気流を消滅させて、遠心力による紙粉の離脱を促すと
ともに、さらに、エアの吐出力で紙粉を紙面から離脱さ
せようとするものである。そして、紙面に衝突して反射
する反射気流に離脱した紙粉を乗せ、吸引フードによっ
て、吸引口７（図２）から吸引しようとするものであ
る。更にまた、本発明の装置の手前で、先に述べたコロ
ナ放電等による静電気を中和する装置を併用し、紙粉の
紙面からの離脱を支援し、紙粉除去効果を高めることも
できる。The present invention also utilizes the centrifugal force applied to the paper powder as described above. An airflow along the running direction generated along with the running of the continuous paper S flows through a portion very close to the surface of the running continuous paper S. For this reason, it is considered that the paper dust that is about to be separated from the paper surface is less likely to be separated by the airflow. The present invention discharges high-speed air from the direction opposite to the running direction to paper powder that is about to separate from the paper surface due to centrifugal force, and eliminates the airflow flowing along the running direction of the continuous paper S, and the centrifugal force In addition to promoting the separation of the paper dust, the paper dust is intended to be separated from the paper surface by the discharge force of air. Then, the separated paper dust is put on a reflection airflow that collides with and reflects on the paper surface, and is to be sucked from the suction port 7 (FIG. 2) by the suction hood. Furthermore, before the apparatus of the present invention, the above-described apparatus for neutralizing static electricity due to corona discharge or the like can be used in combination to assist the separation of paper dust from the paper surface and enhance the paper dust removal effect.
【００１０】[0010]
【発明の実施の形態】本発明は、前述のように、紙粉に
かかる遠心力と高速エアの吐出力を利用して紙粉を紙面
から離脱させるものである。従って、遠心力及びエアの
吐出力は大きければ大きいほど紙粉除去効果が大きくな
る。また、遠心力は、紙Ｓの走行速度の自乗に比例し、
ロール径に反比例するから、ロールＲの半径をできるだ
け小さくすることが望ましいが、紙幅即ちロール長さと
の関係で、ロール径を小さくするにも、強度面、回転精
度等から限界がある。紙幅６ｍの場合、およそ、直径３
０ｃｍくらいが限度であるが、これより幅の狭い連続紙
であれば、さらにロール径を小さくし、紙粉除去効果を
高めることが可能である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As described above, the present invention uses a centrifugal force applied to paper dust and a discharge force of high-speed air to separate paper dust from a paper surface. Therefore, the larger the centrifugal force and the air discharge force, the greater the paper dust removing effect. The centrifugal force is proportional to the square of the traveling speed of the paper S,
Since it is inversely proportional to the roll diameter, it is desirable to make the radius of the roll R as small as possible. However, there is a limit in reducing the roll diameter in relation to the paper width, that is, the roll length, in terms of strength, rotation accuracy, and the like. When the paper width is 6m, the diameter is approximately 3
The limit is about 0 cm, but if the continuous paper is narrower than this, it is possible to further reduce the roll diameter and enhance the paper dust removing effect.
【００１１】一方、高速エアは紙Ｓが走行している間
は、常時吐出させておく必要があり、大量の加圧エアを
消費するため、加圧エアを作り出すエネルギー費用が問
題になる。また、高速エアは紙Ｓの全幅にわたってでき
るだけ均一に吐出させることが望ましいから、エア噴出
ノズル２のエア噴出孔の形状は、図３に示す横長の長方
形又は楕円形のように、水平方向の径が上下方向の径よ
りも大きい横長形状とし、噴出するエアが水平方向に扇
型に拡がり、上下方向にはごく僅かしか拡がらない噴出
パターンとなるノズルとし、前記噴出ノズル２の孔の長
径がロールＲの軸と平行になるように設置することが望
ましい。On the other hand, the high-speed air must be constantly discharged while the paper S is running, and a large amount of pressurized air is consumed. Therefore, there is a problem of energy cost for producing the pressurized air. Further, since it is desirable that the high-speed air is discharged as uniformly as possible over the entire width of the paper S, the shape of the air ejection hole of the air ejection nozzle 2 has a horizontal diameter such as a horizontally long rectangle or ellipse shown in FIG. Is a horizontally elongated shape larger than the diameter in the up-down direction, and the ejected air spreads in a fan shape in the horizontal direction, and the ejection pattern is such that the ejection air spreads only slightly in the up-down direction. It is desirable to install so as to be parallel to the axis of the roll R.
【００１２】図１、２，５において、エアガン４内のエ
アの流路は、エア噴出ノズル２からエア吐出口３に向か
うに従って、上下方向の幅が狭くなるように形成されて
いるので、エア噴出ノズル２から噴出し、一旦は上下方
向にも拡散したエアはエア吐出口３において収束し、エ
ア吐出口３付近で最大の吐出速度となる。この高速エア
を紙面に吐出させることにより、効率よく紙粉を紙面か
ら離脱させることができる。エア噴出ノズル２から噴出
したエアは、水平方向に扇型に拡がるが、エア噴出ノズ
ル２から斜め方向に噴出するエアは、エア噴出ノズル２
から真っ直ぐに噴出するエアに比べて、噴出速度が遅い
から、図３のように、隣接するノズルから噴出したエア
の流れとエア吐出口３の手前で一部が重複するように、
ノズル間隔を調整して配置することが望ましい。In FIGS. 1, 2 and 5, the air flow path in the air gun 4 is formed so that the width in the vertical direction becomes narrower from the air ejection nozzle 2 to the air discharge port 3. The air jetted from the jet nozzle 2 and once diffused in the vertical direction converges at the air discharge port 3 and has a maximum discharge speed near the air discharge port 3. By discharging the high-speed air onto the paper, paper dust can be efficiently separated from the paper. The air ejected from the air ejection nozzle 2 spreads in a fan shape in the horizontal direction, while the air ejected from the air ejection nozzle 2 in an oblique direction is the air ejection nozzle 2.
Since the ejection speed is slower than the air ejected straight from the nozzle, as shown in FIG. 3, the flow of the air ejected from the adjacent nozzle and the air ejection port 3 are partially overlapped before the air discharge port 3.
It is desirable to arrange the nozzle intervals.
【００１３】加圧エアは、加圧エア管１の端部から供給
されるが、加圧エア管１に同型の複数のエア噴出ノズル
２を配置すると、エア供給源に近いノズルと遠いノズル
とではエアの流速が異なることがある。従って、加圧エ
アは、加圧エア管１の両端から供給することが望まし
い。それでもなお、噴出速度に大きな差が生じるとき
は、加圧エア管１を２又は３に分割し、各々の加圧エア
管１の両端から加圧エアを供給することが望ましい。或
いは、エア噴出ノズル２の一部を開口部断面の大きさが
異なるものに換えて、ほぼ同じ流速のエアが排出される
ように調整することが望ましい。エアガンの別の形態と
して、図５のように、加圧エア管１を用いず、エアガン
４の内部に直接加圧エアを供給するものでもよいが、ロ
ール全幅に渡ってほぼ同じ流速のエアが排出されること
を確認しておく必要がある。The pressurized air is supplied from the end of the pressurized air pipe 1. When a plurality of air jet nozzles 2 of the same type are arranged in the pressurized air pipe 1, a nozzle close to the air supply source and a nozzle far from the air supply source are provided. Then, the flow velocity of the air may be different. Therefore, it is desirable to supply the pressurized air from both ends of the pressurized air pipe 1. Nevertheless, when there is a large difference in the ejection speed, it is desirable to divide the pressurized air pipe 1 into two or three and supply pressurized air from both ends of each pressurized air pipe 1. Alternatively, it is desirable to replace a part of the air ejection nozzle 2 with one having a different cross-sectional size of the opening, and to adjust so that air having substantially the same flow velocity is discharged. As another form of the air gun, as shown in FIG. 5, it is possible to supply pressurized air directly to the inside of the air gun 4 without using the pressurized air pipe 1, but air having substantially the same flow rate over the entire width of the roll is provided. It is necessary to confirm that it is discharged.
【００１４】なお、紙粉は、パルプ繊維の粕等の比較的
大きなものが紙面に落下して紙粉となることが多いが、
その場合、細長いものは、その長径が紙の走行方向と平
行に付着する傾向があるので、そのようなものに対して
は、加圧エア管１を横方向即ち、ロールの幅方向に摺動
させて、紙の走行方向に対してやや斜め方向から高速エ
アを吐出させた方が除去効果が大きい。上記斜め方向と
は、図１において、Ｘ−Ｚ平面において、β＝０〜９０
°の角度の矢印の方向のことである。しかし、前述のよ
うに紙の走行速度が２０ｍ／ｓｅｃの場合、それに近い
速度で摺動させる必要がある。上記のような紙粉に対処
するには、図３の下図のように、エア噴出ノズル２から
噴出するエアの方向が、斜め方向となるようにエア噴出
ノズル２を加圧エア管１に対して斜めに取り付け、エア
を斜め方向に吐出させることもできる。図５の場合は、
エアが斜め方向に吐出するよう、内部に整流板を設けな
ければならないので構造が複雑になり、制作費が高額に
なる。また、図３の場合、加圧エア管１を収納するエア
ガン４の空間部分の断面形状を円形としているが、これ
を横方向の長穴形状とすれば、加圧エア管１の軸をロー
ルＲの軸に対して傾斜させることができ、運転中にも、
上記長穴の範囲でエアの吐出方向を変更させることがで
きる。[0014] In addition, as for paper powder, relatively large ones such as pulp fiber lees often fall on the paper surface to become paper powder.
In such a case, since the long and thin objects tend to adhere in parallel with the running direction of the paper, the pressurized air tube 1 is slid in the lateral direction, that is, in the width direction of the roll, in such a case. If the high-speed air is discharged in a direction slightly oblique to the running direction of the paper, the removal effect is greater. The oblique direction refers to β = 0 to 90 in the XZ plane in FIG.
It is the direction of the arrow at an angle of °. However, when the traveling speed of the paper is 20 m / sec as described above, it is necessary to slide the paper at a speed close to it. In order to deal with the above-mentioned paper dust, as shown in the lower diagram of FIG. 3, the air ejection nozzle 2 is moved with respect to the pressurized air pipe 1 so that the direction of the air ejected from the air ejection nozzle 2 is oblique. It can also be attached obliquely to discharge air obliquely. In the case of FIG.
A rectifying plate must be provided inside so that air is discharged obliquely, so that the structure is complicated and the production cost is high. Further, in the case of FIG. 3, the cross-sectional shape of the space portion of the air gun 4 that houses the pressurized air tube 1 is circular. It can be tilted with respect to the R axis.
The discharge direction of air can be changed within the range of the above-mentioned elongated hole.
【００１５】高速エアは、連続紙Ｓの走行方向と反対方
向から吐出すれば、吐出角度の大きさ如何に関わらず、
それなりの効果がある。また、紙粉と言っても、紙の種
類によってその形状、構成する物質が異なり、パルプ繊
維が主体となっている場合や顔料等の比重の大きい固形
物が主体となっている場合もあり、これら種々雑多のも
のが混入している場合もあるので、どの角度が最適であ
るかの判断は、紙の種類ごとに実際に実験してみないと
判断できない。そのため、図１のごとく、エアガンを回
動可能なバー６に固定し、Ｘ−Ｙ平面におけるエアの吐
出角度を調整できるようにしておくことが望ましい。If the high-speed air is discharged from the direction opposite to the running direction of the continuous paper S, regardless of the size of the discharge angle,
There is a certain effect. Also, speaking of paper powder, the shape and constituent materials differ depending on the type of paper, and there are cases where pulp fibers are mainly used and solids with large specific gravity such as pigment are mainly used, Since these various miscellaneous things may be mixed, it is not possible to determine which angle is optimal without actually experimenting for each type of paper. Therefore, as shown in FIG. 1, it is desirable to fix the air gun to the rotatable bar 6 so that the air discharge angle on the XY plane can be adjusted.
【００１６】エアの突出速度は大きい程、紙粉除去効果
が大きいが、製紙工場や印刷工場では、加圧エアを抄紙
機、印刷機等の機械設備の各所で駆動用、クリーニング
用等に用いており、エア源であるコンプレッッサーやエ
ア配管はこれら設備と共用されているので、本発明の場
合も、これら工場共用のエア源からエアを得ることが好
ましい。但し、紙粉除去にはエアが高速である必要があ
るので、エア圧力はゲージ圧で２ｋｇ／ｃｍ２以上が望
ましい。また、エアの吐出量自体は、エアの吐出速度ほ
ど重要でないから、吐出口３の隙間をできるだけ狭くし
て、エア吐出口３で高速流となるようにすれば、少量の
エアで大きな効果を上げることができる。The higher the air projection speed, the greater the effect of removing paper dust. However, in paper mills and printing plants, pressurized air is used for driving, cleaning, etc. in various parts of machine equipment such as paper machines and printing machines. Since the compressor and the air pipe, which are the air sources, are shared with these facilities, in the case of the present invention as well, it is preferable to obtain air from these factory-shared air sources. However, since high-speed air is required for removing paper dust, the air pressure is desirably 2 kg / cm 2 or more in terms of gauge pressure. Further, since the discharge amount of the air itself is not as important as the discharge speed of the air, if the gap between the discharge ports 3 is made as small as possible and the flow rate is high at the air discharge ports 3, a great effect can be obtained with a small amount of air. Can be raised.
【００１７】吐出口３の隙間は、０．３〜５ｍｍの範囲
が好ましく、この範囲よりも大きいとエアの吐出速度が
遅くなり、小さいとエアの吐出量が少なくなり、かえっ
て除去効果が小さくなる。また、隙間が狭いと、エア中
の異物が詰まることがあるので、０．５〜３ｍｍ程度が
最適である。尚、紙の表裏両面の紙粉を除去するには、
図４のように、本発明の装置を配置するのがよい。な
お、本発明に用いるエアは乾燥したエアが望ましい。加
圧空気中に水滴やミストを含む場合や、水分を大気中に
噴出させたとき、急激な圧力低下により水滴が発生した
場合、紙の紙力を低下させ、断紙の原因となることがあ
る。The gap between the discharge ports 3 is preferably in the range of 0.3 to 5 mm. If the gap is larger than this range, the air discharge speed is reduced. If the gap is small, the air discharge amount is reduced, and the removal effect is rather reduced. . Further, if the gap is narrow, foreign matter in the air may be clogged. To remove paper dust on both sides of the paper,
As shown in FIG. 4, the device of the present invention is preferably arranged. The air used in the present invention is desirably dry air. If the pressurized air contains water droplets or mist, or if water is ejected into the atmosphere, or if water drops are generated due to a sudden drop in pressure, the paper strength of the paper may be reduced and this may cause paper breakage. is there.
【００１８】[0018]
【発明の効果】以上に述べたように、本発明は、連続紙
にかかる遠心力により、紙粉が紙の表面から離脱しやす
い位置において、連続紙の走行方向の反対側から紙面に
向けて高速エアを吐出することにより、高速エアの吐出
力により紙１２００ｍ／分粉を紙表面から離脱させると
ともに、紙面で反射した高速エアの気流に紙粉を乗せ、
吸引して紙粉を除去するものである。また、遠心力を利
用するところに特徴があるので、抄紙機や紙のコータ
ー、印刷機等の連続紙を扱う機械は、今後益々高速化さ
れるので、本発明の装置の貢献の度合いは益々大きくな
る。また、本発明の装置は紙に接触しないため、紙面を
損傷する恐れがない。As described above, according to the present invention, at a position where paper dust is likely to separate from the surface of the paper due to the centrifugal force applied to the continuous paper, the paper dust is directed from the opposite side to the running direction of the continuous paper toward the paper surface. By discharging the high-speed air, the paper 1200 m / minute powder is separated from the paper surface by the discharging force of the high-speed air, and the paper powder is put on the high-speed air flow reflected on the paper surface.
This is to remove paper dust by suction. In addition, since there is a feature in using centrifugal force, machines that handle continuous paper, such as paper machines, paper coaters, and printing machines, will be increasingly accelerated in the future, and the degree of contribution of the apparatus of the present invention will be increasing. growing. Further, since the apparatus of the present invention does not contact the paper, there is no possibility of damaging the paper surface.
【００１９】請求項２の発明は、エアガン４内部に、所
定の間隔で複数個のエア噴出ノズルを収納することによ
り、ロールの軸方向にエア噴出ノズル２を摺動して、紙
面に対するエアの吐出方向を変化させることを可能にし
た発明である。請求項３の発明は、エア噴出ノズル２の
エア噴出孔の断面を、加圧エア管１と平行な横長形状と
し、エアを扇状に噴出させることにより、ロール全幅に
対して、エアを均一に吐出させる発明である。請求項４
の発明は、エア噴出ノズルから噴出するエアの方向が、
Ｘ−Ｚ平面において、紙面に対して、斜め方向となるこ
とを可能にした発明である。According to a second aspect of the present invention, a plurality of air ejection nozzles are housed at predetermined intervals inside the air gun 4, so that the air ejection nozzles 2 slide in the axial direction of the roll, and the air is ejected from the paper surface. This is an invention that makes it possible to change the ejection direction. According to the third aspect of the present invention, the cross section of the air ejection hole of the air ejection nozzle 2 is formed in a horizontally elongated shape parallel to the pressurized air pipe 1, and the air is ejected in a fan shape, so that the air is uniformly distributed over the entire width of the roll. This is an invention for discharging. Claim 4
In the invention of the above, the direction of the air ejected from the air ejection nozzle is
This is an invention that makes it possible to be inclined with respect to the paper surface in the XZ plane.
【図１】 本発明の実施例の装置の斜視説明図FIG. 1 is an explanatory perspective view of an apparatus according to an embodiment of the present invention.
【図２】 図１の断面図FIG. 2 is a sectional view of FIG.
【図３】 加圧エア管及びノズルの斜視説明図FIG. 3 is an explanatory perspective view of a pressurized air pipe and a nozzle.
【図４】 本発明の実施例の説明図FIG. 4 is an explanatory view of an embodiment of the present invention.
【図５】 本発明の実施例の説明図FIG. 5 is an explanatory view of an embodiment of the present invention.
１ 加圧エア管 ２ エア噴射ノズル ３ エア吐出口 ４ エアガン ５ 吸引フード ６ バー ７ 吸引口 Ｓ 連続紙 Ｒ ロール Reference Signs List 1 pressurized air pipe 2 air injection nozzle 3 air discharge port 4 air gun 5 suction hood 6 bar 7 suction port S continuous paper R roll
Claims (4)
置において、連続紙の走行方向と反対方向から連続紙の
表面に向けて高速エアが吐出するように高速エア吐出口
を臨ませ、連続紙の表面から反射するエアとともに連続
紙から離脱する紙粉を吸引することを特徴とする紙粉除
去装置。An apparatus for removing paper dust from continuous paper, wherein the surface of the continuous paper is removed from a direction opposite to a running direction of the continuous paper at a position where the continuous paper comes into contact with a roll installed on a continuous paper traveling path. A paper dust removing apparatus characterized in that a high-speed air discharge port is exposed so as to discharge high-speed air toward the paper, and the paper dust that separates from the continuous paper is sucked together with air reflected from the surface of the continuous paper.
（６）と、 ２．前記バー（６）に取り付けられ、連続紙（Ｓ）の紙
幅と同幅又はそれよりも広めの幅で０．３〜５ｍｍの隙
間のエア吐出口（３）から高速エアを吐出させるエアガ
ン（４）と、 ３．前記エアガン（４）の内部に収納され、所定の間隔
で複数個のエア噴出ノズル（２）が設けられた加圧エア
管（１）と、 ４．連続紙（Ｓ）から反射したエアを臨む位置に吸引口
（７）を持つ吸引フード（５）とからなり、 ５．エアガン（４）内のエアの流路が、エア噴出ノズル
（２）からエア吐出口（３）に向かうに従って、上下方
向の幅が狭くなるように形成されている、 ことを特徴とする紙粉除去装置。2. The apparatus according to claim 1, wherein: 1. a rotatable bar (6) having an axis parallel to the axis of the roll (R); An air gun (4) attached to the bar (6) and configured to discharge high-speed air from an air discharge port (3) having a width equal to or wider than the continuous paper (S) and a gap of 0.3 to 5 mm. ) And 3. a pressurized air pipe (1) housed inside the air gun (4) and provided with a plurality of air ejection nozzles (2) at predetermined intervals; 4. a suction hood (5) having a suction port (7) at a position facing air reflected from the continuous paper (S); Paper dust characterized in that the air flow path in the air gun (4) becomes narrower in the vertical direction from the air ejection nozzle (2) to the air discharge port (3). Removal device.
が横長形状であることを特徴とする請求項２に記載の紙
粉除去装置。3. The paper dust removing device according to claim 2, wherein a cross section of the air ejection hole of the air ejection nozzle is horizontally long.
方向が、斜め方向となるようにエア噴出ノズル（２）が
加圧エア管（１）に取り付けられていることを特徴とす
る請求項２〜３に記載の紙粉除去装置。4. An air jet nozzle (2) is attached to a pressurized air pipe (1) such that the direction of air jetted from the air jet nozzle (2) is oblique. Item 4. The paper dust removing device according to Item 2 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000397252A JP2002200591A (en) | 2000-12-27 | 2000-12-27 | Device for eliminating paper powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000397252A JP2002200591A (en) | 2000-12-27 | 2000-12-27 | Device for eliminating paper powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002200591A true JP2002200591A (en) | 2002-07-16 |
Family
ID=18862399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000397252A Pending JP2002200591A (en) | 2000-12-27 | 2000-12-27 | Device for eliminating paper powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002200591A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008290789A (en) * | 2007-05-22 | 2008-12-04 | National Printing Bureau | Paper sheet processing apparatus |
| JP2009082874A (en) * | 2007-10-02 | 2009-04-23 | Oji Nepia Kk | Apparatus for removing paper dust and folding apparatus for sanitary paper |
| JP2009167016A (en) * | 2007-12-17 | 2009-07-30 | Mutual Corp | Foreign matter removing device, laser printing system, laser print inspection system, and method therefor |
| JP2011079089A (en) * | 2009-10-07 | 2011-04-21 | Lintec Corp | Dust trapping device and cutting device having the device |
| JP2013202139A (en) * | 2012-03-28 | 2013-10-07 | Oji Holdings Corp | Paper dust removing apparatus, and method of manufacturing sanitary paper using the paper dust removing apparatus |
| CN104760077A (en) * | 2014-01-03 | 2015-07-08 | 南昌欧菲光学技术有限公司 | Die cutting device and method |
| CN110052453A (en) * | 2019-03-22 | 2019-07-26 | 滁州新彩家用玻璃有限公司 | A kind of glass dust-extraction unit |
| CN116835371A (en) * | 2023-08-30 | 2023-10-03 | 山东东宇鸿翔装饰材料有限公司 | Paper conveying device and method for gummed paper processing |
| JP7447490B2 (en) | 2019-12-26 | 2024-03-12 | セイコーエプソン株式会社 | recording device |
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| JPH04122034U (en) * | 1991-04-17 | 1992-10-30 | ハマダ印刷機械株式会社 | rotary printing machine |
| JPH05269452A (en) * | 1992-03-24 | 1993-10-19 | Toray Ind Inc | Dust removing apparatus for sheet-like item |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0333869U (en) * | 1989-08-11 | 1991-04-03 | ||
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008290789A (en) * | 2007-05-22 | 2008-12-04 | National Printing Bureau | Paper sheet processing apparatus |
| JP2009082874A (en) * | 2007-10-02 | 2009-04-23 | Oji Nepia Kk | Apparatus for removing paper dust and folding apparatus for sanitary paper |
| JP2009167016A (en) * | 2007-12-17 | 2009-07-30 | Mutual Corp | Foreign matter removing device, laser printing system, laser print inspection system, and method therefor |
| JP2011079089A (en) * | 2009-10-07 | 2011-04-21 | Lintec Corp | Dust trapping device and cutting device having the device |
| JP2013202139A (en) * | 2012-03-28 | 2013-10-07 | Oji Holdings Corp | Paper dust removing apparatus, and method of manufacturing sanitary paper using the paper dust removing apparatus |
| CN104760077A (en) * | 2014-01-03 | 2015-07-08 | 南昌欧菲光学技术有限公司 | Die cutting device and method |
| CN110052453A (en) * | 2019-03-22 | 2019-07-26 | 滁州新彩家用玻璃有限公司 | A kind of glass dust-extraction unit |
| JP7447490B2 (en) | 2019-12-26 | 2024-03-12 | セイコーエプソン株式会社 | recording device |
| CN116835371A (en) * | 2023-08-30 | 2023-10-03 | 山东东宇鸿翔装饰材料有限公司 | Paper conveying device and method for gummed paper processing |
| CN116835371B (en) * | 2023-08-30 | 2023-11-03 | 山东东宇鸿翔装饰材料有限公司 | Paper conveying device and method for gummed paper processing |
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