JP3305423B2 - Steel strip levitation transfer device - Google Patents

Steel strip levitation transfer device

Info

Publication number
JP3305423B2
JP3305423B2 JP14606393A JP14606393A JP3305423B2 JP 3305423 B2 JP3305423 B2 JP 3305423B2 JP 14606393 A JP14606393 A JP 14606393A JP 14606393 A JP14606393 A JP 14606393A JP 3305423 B2 JP3305423 B2 JP 3305423B2
Authority
JP
Japan
Prior art keywords
steel strip
traveling direction
transfer device
steel
pressure receiving
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
Application number
JP14606393A
Other languages
Japanese (ja)
Other versions
JPH072396A (en
Inventor
明 梅津
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
JFE Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JFE Steel Corp filed Critical JFE Steel Corp
Priority to JP14606393A priority Critical patent/JP3305423B2/en
Publication of JPH072396A publication Critical patent/JPH072396A/en
Application granted granted Critical
Publication of JP3305423B2 publication Critical patent/JP3305423B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、ガスまたは液体をノズ
ルから鋼帯に吹き付けることによって鋼帯を浮上搬送
し、かつ、鋼帯を安定浮上させるための整流板を設けた
鋼帯の浮上搬送装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for floating a steel strip by spraying a gas or a liquid from a nozzle onto the steel strip, and a rectifying plate for stably floating the steel strip. Related to the device.

【0002】[0002]

【従来の技術】近年、鋼帯の高品質要求に伴い、無欠陥
製品の製造要求が高まってきたので、鋼帯の搬送に用い
られる各種のロールによる鋼帯の表面欠陥(例えば、擦
り疵や押込み疵など)の防止が品質改善のための緊急の
課題とされてきた。このため、1980年代前半から、ロー
ルに代わる搬送装置として、鋼帯を非接触支持しながら
搬送する鋼帯浮上搬送装置(以下フロータと言う)が開
発され、実機も多数稼働している。
2. Description of the Related Art In recent years, the demand for the production of defect-free products has increased along with the demand for high quality of steel strips. Prevention of indentation flaws) has been an urgent issue for quality improvement. For this reason, since the early 1980s, a steel strip levitation transfer device (hereinafter referred to as a floater) that transfers a steel strip while supporting it in a non-contact manner has been developed as a transfer device instead of a roll, and many actual machines are in operation.

【0003】フロータとは、ガスまたは液体をノズルか
ら鋼帯に吹付けることによって、鋼帯とフロータ間に発
生する静圧で鋼帯を浮上させるものである。
[0003] A floater is a type in which a steel strip is levitated by a static pressure generated between the steel strip and the floater by blowing a gas or a liquid onto the steel strip from a nozzle.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、前記の
フロータによる搬送では、鋼帯と流体間の摩擦抵抗が少
ないことや、鋼帯側面からの流体の流出が多いため、微
小な外乱により、鋼帯が幅方向に傾き斜行の原因とな
り、鋼帯の浮上が非常に不安定であった。そこで、鋼帯
の浮上安定化対策として、特公平5 − 20342号公報に
は、図4(a) に示すような矢印の鋼帯進行方向に平行に
整流板1を受圧面4上に配置し、該整流板により流体の
側面への流出を防止し、かつ、その流れを均一にするこ
とにより、鋼帯の安定化した浮上を実現する方法が開示
され、実用化されている。
However, in the transfer using the floater, since the frictional resistance between the steel strip and the fluid is small and the fluid flows out from the side face of the steel strip, the steel strip is slightly disturbed. Caused the steel strip to skew in the width direction and the floating of the steel strip was extremely unstable. Therefore, as a measure for stabilizing the levitation of the steel strip, Japanese Patent Publication No. 5-20342 discloses that the rectifying plate 1 is disposed on the pressure receiving surface 4 in parallel to the direction in which the steel strip advances as shown in FIG. A method of preventing the fluid from flowing out to the side surface by the current plate and making the flow uniform has been disclosed and has been put to practical use.

【0005】なお、整流板1の両端部には、鋼帯3にガ
スや液体を吹き付け浮上させるためのノズル2を配設し
ており、図4(b) は(a) 図のA−A矢視断面図を示して
いる。しかし、この方法では、図5における鋼帯の進行
方向に対して直角に切断した鋼帯浮上搬送装置の断面図
に示すように、搬送する鋼帯が湾曲した場合、鋼帯のエ
ッジが整流板の間に落ち込み、鋼帯エッジが損傷するの
は勿論のこと、最悪の場合、板が破断し、非常に大きな
ダウンタイムを引き起こす問題があった。
[0005] At both ends of the current plate 1, nozzles 2 for blowing a gas or a liquid onto the steel strip 3 to float the steel strip 3 are provided. FIG. 4 (b) is an AA diagram in FIG. 4 (a). FIG. However, in this method, when the steel strip to be transported is curved, as shown in a cross-sectional view of the steel strip levitation transport device cut in a direction perpendicular to the traveling direction of the steel strip in FIG. Not only to damage the steel strip edge, but in the worst case, there is a problem that the plate is broken and a very large downtime is caused.

【0006】本発明は、前記課題を解決した鋼帯浮上搬
送装置を提供することを目的とする。
[0006] It is an object of the present invention to provide a steel strip levitation transfer device that solves the above-mentioned problems.

【0007】[0007]

【課題を解決するための手段】本発明は、鋼帯の直下に
該鋼帯と対向する受圧面と、鋼帯の進行方向に対して直
角にまた鋼帯の幅全長にわたる2本のノズルと、2本の
ノズル間の受圧面上に該鋼帯幅方向中心線に対し、対称
に各々一方向に傾斜して設けた整流板とからなる鋼帯を
浮上搬送させる装置において、前記整流板を鋼帯の進行
方向に対し角度θを設け、整流板設置面の鋼帯の進行方
向長さLと隣接する整流板間の距離dとの間にLtan θ
≧dの関係を有するようにして設置することを特徴とす
る鋼帯浮上搬送装置である。
According to the present invention, there is provided a pressure receiving surface immediately below a steel strip, the pressure receiving surface facing the steel strip, and two nozzles perpendicular to the traveling direction of the steel strip and extending over the entire width of the steel strip. Symmetric on the pressure receiving surface between the two nozzles with respect to the center line in the steel strip width direction
In a device for floatingly conveying a steel strip composed of a straightening plate provided at an angle in one direction , the straightening plate is provided at an angle θ with respect to the traveling direction of the steel strip, and
Ltan θ between the direction length L and the distance d between adjacent straightening plates.
A steel strip levitation transfer device, which is installed so as to have a relationship of ≧ d .

【0008】[0008]

【作 用】本発明によれば、鋼帯の直下に該鋼帯と対向
する受圧面と、鋼帯の進行方向に対して直角にまた鋼帯
の幅全長にわたる2本のノズルと、2本のノズル間の受
圧面上に設けた整流板とからなる鋼帯を浮上搬送させる
装置において、前記整流板を鋼帯の進行方向に対し角度
を設けて設置したので、鋼帯の下面全面にノズルからの
液体が効率よくスプレイされ、湾曲した鋼帯のエッジが
整流板の間に落ち込むことがなくなり、鋼帯破断などの
トラブルが解消される。
According to the present invention, a pressure receiving surface facing the steel strip immediately below the steel strip, two nozzles perpendicular to the traveling direction of the steel strip and over the entire width of the steel strip, and two nozzles are provided. In a device for floatingly conveying a steel strip composed of a rectifying plate provided on a pressure receiving surface between nozzles, the rectifying plate is installed at an angle with respect to the traveling direction of the steel strip. The sprayed liquid is efficiently sprayed, the edge of the curved steel strip does not fall between the flow straightening plates, and troubles such as breakage of the steel strip are eliminated.

【0009】なお、角度は、流体の側面への流出抑制と
鋼帯エッジの整流板間への落込み防止との両者を満足さ
せるものとして、約10〜45度の範囲が好ましい。また、
整流板と鋼帯の進行方向との角度θと整流板間の距離d
との関係は下記の(1) 式に示すとおりである。 Ltan θ≧d ・・・・・・・・・・(1) L:整流板設置面の長さ d:整流板間の距離 θ:整流板と鋼帯の進行方向との角度
The angle is preferably in the range of about 10 to 45 degrees so as to satisfy both the prevention of the fluid from flowing to the side surface and the prevention of the steel strip edge from dropping between the straightening plates. Also,
The angle θ between the current plate and the traveling direction of the steel strip and the distance d between the current plates
Is as shown in the following equation (1). Ltan θ ≧ d (1) L: Length of current plate installation surface d: Distance between current plate θ: Angle between current plate and traveling direction of steel strip

【0010】[0010]

【実施例】以下に本発明の実施例について図面を参照し
て説明する。図1は、整流板1を鋼帯の進行方向に対し
逆V字型に配設した実施例を示す平面図であり、図1
(b) は、(a) のA−A矢視断面図である。なお、図1、
図2、図3の実施例は、鋼帯の進行方向との角度θ=15
度、整流板1の設置面の長さL=500mm 、整流板1の間
の距離d=20mmの条件によって行った。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing an embodiment in which the current plate 1 is disposed in an inverted V-shape with respect to the traveling direction of the steel strip.
(b) is a sectional view taken along the line AA of (a). In addition, FIG.
The embodiment of FIGS. 2 and 3 has an angle θ = 15 with respect to the traveling direction of the steel strip.
The test was performed under the conditions that the length L of the installation surface of the current plate 1 was 500 mm and the distance d between the current plates 1 was 20 mm.

【0011】本発明による実施例においては、従来の鋼
帯に平行な整流板を持つフロータと同等の浮上安定性を
得ることができ、かつ、形状の悪い鋼帯でも浮上安定性
が得られ、鋼帯エッジが整流板1の間に落下することが
無くなった。図2は、整流板1を鋼帯の進行方向に対し
V字型に配設した他の実施例を示す平面図であり、本実
施例も他の実施例と同様の結果が得られた。
In the embodiment according to the present invention, the same floating stability as a conventional floater having a straightening plate parallel to a steel strip can be obtained, and the floating stability can be obtained even with a steel strip having a poor shape. The steel strip edge did not fall between the current plate 1. FIG. 2 is a plan view showing another embodiment in which the current plate 1 is disposed in a V-shape with respect to the traveling direction of the steel strip. In this embodiment, the same results as those of the other embodiments were obtained.

【0012】図3は、鋼帯の進行方向に対し整流板1の
前半分をV字型に、後半分を逆V字型に配設した実施例
を示す平面図であり、本実施例も他の実施例と同様の結
果が得られた。
FIG. 3 is a plan view showing an embodiment in which the front half of the current plate 1 is arranged in a V-shape and the rear half is arranged in an inverted V-shape with respect to the traveling direction of the steel strip. The same results as in the other examples were obtained.

【0013】[0013]

【発明の効果】本発明の装置によれば、鋼帯の安定浮上
性を阻害することなく、形状の悪い鋼帯でも該鋼帯エッ
ジが整流板の間に落ち込むというトラブルの発生が無く
なり、鋼帯を安定して浮上搬送することが可能になる。
According to the apparatus of the present invention, the trouble that the steel strip edge falls between the rectifying plates even in a steel strip having a bad shape can be eliminated without impairing the stable levitation of the steel strip. It is possible to stably carry the levitation.

【図面の簡単な説明】[Brief description of the drawings]

【図1】(a) 整流板を逆V字型に配設した実施例を示す
平面図である。 (b) (a) のA−A矢視断面図である。
FIG. 1A is a plan view showing an embodiment in which a current plate is arranged in an inverted V-shape. (b) It is sectional drawing in the AA arrow of (a).

【図2】整流板をV字型に配設した実施例を示す平面図
である。
FIG. 2 is a plan view showing an embodiment in which a current plate is arranged in a V-shape.

【図3】整流板の前半分をV字型に、後半分を逆V字型
に配設した実施例を示す平面図である。
FIG. 3 is a plan view showing an embodiment in which the front half of the current plate is arranged in a V-shape and the rear half is arranged in an inverted V-shape.

【図4】(a) 従来の整流板を持つフロータを示す平面図
である。 (b) (a) のA−A矢視断面図である。
FIG. 4A is a plan view showing a conventional floater having a current plate. (b) It is sectional drawing in the AA arrow of (a).

【図5】鋼帯の進行方向に対して直角に切断した鋼帯浮
上搬送装置を示す断面図である。
FIG. 5 is a cross-sectional view showing the steel strip levitation transfer device cut at a right angle to the traveling direction of the steel strip.

【符号の説明】[Explanation of symbols]

1 整流板 2 フロータノズル 3 鋼帯 4 受圧面 DESCRIPTION OF SYMBOLS 1 Rectifier plate 2 Floater nozzle 3 Steel strip 4 Pressure receiving surface

───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7,DB名) B65H 20/10 B65H 23/24 C21D 9/63 C25D 7/06 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) B65H 20/10 B65H 23/24 C21D 9/63 C25D 7/06

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 鋼帯の直下に該鋼帯と対向する受圧面
と、鋼帯の進行方向に対して直角にまた鋼帯の幅全長に
わたる2本のノズルと、2本のノズル間の受圧面上に
鋼帯幅方向中心線に対し、対称に各々一方向に傾斜して
設けた整流板とからなる鋼帯を浮上搬送させる装置にお
いて、前記整流板を鋼帯の進行方向に対し角度θを設
、整流板設置面の鋼帯の進行方向長さLと隣接する整
流板間の距離dとの間にLtan θ≧dの関係を有するよ
うにして設置することを特徴とする鋼帯浮上搬送装置。
1. A pressure receiving surface immediately below a steel strip, facing the steel strip, two nozzles perpendicular to the traveling direction of the steel strip and over the entire width of the steel strip, and a pressure receiving pressure between the two nozzles. the on the surface
In a device for levitating and conveying a steel strip comprising a rectifying plate provided symmetrically in one direction with respect to the center line in the width direction of the steel strip, the rectifying plate is at an angle with respect to the traveling direction of the steel strip. θ is set , and the straight line adjacent to the length L in the traveling direction of the steel
Ltan θ ≧ d with the distance d between the flow plates.
Strip levitation transportation device, characterized in that the installation Te Unishi.
JP14606393A 1993-06-17 1993-06-17 Steel strip levitation transfer device Expired - Fee Related JP3305423B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14606393A JP3305423B2 (en) 1993-06-17 1993-06-17 Steel strip levitation transfer device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14606393A JP3305423B2 (en) 1993-06-17 1993-06-17 Steel strip levitation transfer device

Publications (2)

Publication Number Publication Date
JPH072396A JPH072396A (en) 1995-01-06
JP3305423B2 true JP3305423B2 (en) 2002-07-22

Family

ID=15399247

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14606393A Expired - Fee Related JP3305423B2 (en) 1993-06-17 1993-06-17 Steel strip levitation transfer device

Country Status (1)

Country Link
JP (1) JP3305423B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8685080B2 (en) 2008-07-21 2014-04-01 Jenesis Surgical, Llc Repositionable endoluminal support structure and its applications

Also Published As

Publication number Publication date
JPH072396A (en) 1995-01-06

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