JP2571326B2 - Non-contact transport device - Google Patents
Non-contact transport deviceInfo
- Publication number
- JP2571326B2 JP2571326B2 JP4166414A JP16641492A JP2571326B2 JP 2571326 B2 JP2571326 B2 JP 2571326B2 JP 4166414 A JP4166414 A JP 4166414A JP 16641492 A JP16641492 A JP 16641492A JP 2571326 B2 JP2571326 B2 JP 2571326B2
- Authority
- JP
- Japan
- Prior art keywords
- static pressure
- belt
- contact
- center
- pressure generation
- 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
Landscapes
- Advancing Webs (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、調心機能を有する帯状
物の流体クッション式非接触搬送装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid cushion type non-contact conveying device for a belt-like material having a centering function.
【０００２】[0002]
【従来の技術】従来から、鋼帯などの帯状物の搬送にお
いては、搬送ロールのような支持部材との接触による表
面疵の形成を防止するために、搬送帯状物の下面に気体
を吹き付けて気流クッションを形成し、これによって搬
送物を支持する非接触型の搬送装置が用いられている。2. Description of the Related Art Conventionally, in the transfer of a strip such as a steel strip, a gas is blown onto the lower surface of the strip to prevent the formation of surface flaws due to contact with a support member such as a transfer roll. 2. Description of the Related Art A non-contact transfer device that forms an airflow cushion and supports a transfer object by using the cushion is used.
【０００３】ところが、非接触型の搬送装置において
は、非接触支持の不安定さから、搬送中に帯状物の形状
不良に起因する横ずれが発生しやすいという欠点があ
る。このため、この横ずれを矯正し、搬送帯状物が搬送
装置の中心に戻る調心機能を具備する必要がある。However, the non-contact type transfer apparatus has a drawback that a lateral shift due to a defective shape of the belt-like object is likely to occur during the transfer due to instability of the non-contact support. For this reason, it is necessary to provide a centering function for correcting the lateral displacement and returning the transported band to the center of the transporting device.
【０００４】この帯状物の搬送が搬送ロールによって行
われる場合においては、横ずれの発生を防止し、且つ、
調心機能を持たせるための手段として、搬送ロールにク
ラウンによる自己調心機能を持たせたり、また、搬送ロ
ールを傾動可能にしてその傾動の程度を制御して調心す
ることが行われてきた。In the case where the conveyance of the belt-like material is performed by a conveyance roll, occurrence of a lateral shift is prevented, and
As means for imparting the centering function, a self-centering function using a crown is provided to the transport roll, or the transport roll is allowed to tilt and the degree of the tilt is controlled to perform the alignment. Was.
【０００５】しかしながら、非接触搬送では搬送ロール
の調整による調心機構は採用できず、非接触搬送独自の
機構を考える必要がある。例えば、特開昭６２−１６１
９２６号公報には、非接触通板方向に対して対称位置に
且つ、互いに対向する方向に移動磁界を発生する直線移
動磁界型誘導電動機を設けて調心機構としたものが開示
されている。However, in the non-contact conveyance, a centering mechanism by adjusting the conveyance roll cannot be employed, and it is necessary to consider a unique mechanism for the non-contact conveyance. For example, JP-A-62-161
No. 926 discloses a centering mechanism provided with a linear moving magnetic field type induction motor that generates a moving magnetic field in a symmetric position with respect to the non-contact passing direction and in a direction facing each other.
【０００６】ところが、このような調心機構は、機構自
体が非常に高価なものとなり、特に厚鋼板のような比較
的重量の大きい帯状物を対象とした場合には、設備費、
運転費が膨大なものとなり、実現性に乏しい。However, such a centering mechanism itself becomes very expensive, and in particular, when a relatively heavy belt-like material such as a thick steel plate is targeted, equipment cost and cost are reduced.
The operation cost becomes enormous, and the feasibility is poor.
【０００７】[0007]
【発明が解決しようとする課題】本発明の目的は、比較
的簡単な機構によって搬送帯状物の調心（センタリン
グ）を確実に行うことができる流体クッションによる帯
状物の非接触搬送装置を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a non-contact transfer device for a belt-like material using a fluid cushion which can surely perform centering (centering) of the belt-like material by a relatively simple mechanism. It is in.
【０００８】[0008]
【課題を解決するための手段】本発明は、帯状物の下面
に加圧流体を当てる流体クッションによる帯状物の非接
触搬送装置において、静圧パッドの受圧面に設けた搬送
体浮上用流体を噴出する噴出ノズル孔を、搬送帯状物に
対する静圧発生面積がその中心から幅方向に対して対称
であり、且つ、両端部付近の静圧発生面積を中央部付近
の静圧発生面積より大きくなるように形成したことを特
徴とする。SUMMARY OF THE INVENTION The present invention relates to a non-contact transfer device for a belt-like material using a fluid cushion for applying a pressurized fluid to the lower surface of the belt-like material. The area of static pressure generation of the jet nozzle hole to be ejected from the center of the belt is symmetrical with respect to the width direction, and the static pressure generation area near both ends is larger than the static pressure generation area near the center. It is characterized by being formed as described above.
【０００９】搬送帯状物に対する静圧発生面積が幅方向
の両端部に対して中央部において小さくするための噴出
ノズル孔の具体的な開口形状としては、その中央部が両
幅方向の端縁部と比較して狭くなった形状であれば良い
が、その中でも、特に、図２および図３に示すような形
状にするのが、帯状物に対する処理の均一性およびノズ
ル製作の点から好ましい。The specific shape of the opening of the ejection nozzle hole for reducing the static pressure generation area for the transport band at the center with respect to both ends in the width direction is as follows. Any shape may be used as long as the shape is narrower than that of the above. Among them, the shape as shown in FIGS.
【００１０】本発明の非接触搬送装置は、静圧パッドの
受圧面の形状を平面あるは曲面に形成することによっ
て、水平搬送設備あるいは曲げ搬送設備の何れにも適用
できる。The non-contact transfer device of the present invention can be applied to both horizontal transfer equipment and bent transfer equipment by forming the pressure receiving surface of the hydrostatic pad into a flat surface or a curved surface.
【００１１】[0011]
【作用】搬送帯状物の中心軸が噴出ノズル孔の中心から
ずれた場合、搬送帯状物の幅方向に見て、ずれた側の静
圧発生面積が他側よりも大きくなるので、外れた側に加
わる浮上力が他方側よりも大きくなって、搬送帯状物の
中心がずれた側の浮き上がり量が増加して帯状物が幅方
向に傾斜し、その傾斜による回転モーメントにより自己
調心機能が発生する。When the center axis of the transfer belt is displaced from the center of the ejection nozzle hole, the static pressure generation area on the shifted side is larger than the other side when viewed in the width direction of the transfer belt. The lifting force applied to the belt becomes greater than that of the other side, the amount of lifting of the side of the transporting band that is shifted from the center increases, and the band tilts in the width direction, and the self-centering function occurs due to the rotational moment due to the tilt I do.
【００１２】[0012]
【実施例】本発明を、図１に示すように、帯状物Ａを曲
げて搬送する非接触搬送装置に適用した例について説明
する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example in which the present invention is applied to a non-contact transfer device for bending and transferring a belt-like material A as shown in FIG. 1 will be described.
【００１３】図２は、図１に示す非接触搬送装置におい
て搬送帯状物Ａの湾曲部に配置した静圧パッド１を示
す。同図において、２は曲面をなす静圧パッド１の受圧
面を示し、この受圧面２の外曲面には、側端部の静圧発
生面積を大きく取り、中央部の静圧発生面積を小さくし
たノズル孔３が開口されている。FIG. 2 shows the static pressure pad 1 arranged on the curved portion of the transport strip A in the non-contact transport device shown in FIG. In the drawing, reference numeral 2 denotes a pressure receiving surface of the static pressure pad 1 which forms a curved surface. The outer curved surface of the pressure receiving surface 2 has a large static pressure generating area at a side end and a small static pressure generating area at a central portion. Nozzle hole 3 is opened.
【００１４】このノズル孔３による静圧発生域は、図３
（ａ）に示すように、静圧パッド１の中心線Ｘに対称に
両側縁方向に広がった変形４角形をなし、この両変形４
角形が中心線Ｘの箇所で結合し、両端部付近の静圧発生
域が中央部付近の静圧発生域より大きくなるように形成
されている。この静圧発生域の形状により、ノズル孔３
から噴出される昇圧流体の圧力は開口全面で一定である
ので、噴出される昇圧流体による搬送帯状物に及ぼされ
る浮上力Ｐの分布は、図３（ｂ）に示すように、両エッ
ジ部に山を持ち、中央部に谷を有する分布となる。The static pressure generation area by the nozzle hole 3 is shown in FIG.
As shown in FIG. 3A, a deformed quadrangular shape is formed symmetrically with respect to the center line X of the static pressure pad 1 and spreads in both side edge directions.
The squares are joined at the center line X, and the static pressure generation areas near both ends are formed to be larger than the static pressure generation areas near the center. Due to the shape of the static pressure generation area, the nozzle hole 3
Since the pressure of the pressurized fluid ejected from the nozzle is constant over the entire opening, the distribution of the levitation force P exerted on the conveyance belt by the ejected pressurized fluid is, as shown in FIG. It has a peak and a valley in the center.
【００１５】図４は、図３に示す浮上力の分布状態にお
いて、搬送帯状物が搬送中に横ずれを生じた場合の調心
作用を示す。FIG. 4 shows the centering action in the case where the transport belt-like material shifts laterally during transport in the distribution of the levitation force shown in FIG.
【００１６】図４において、搬送中の帯状物Ａが横ずれ
して、帯状物Ａの中心線が静圧パッド１の中心線Ｘから
δだけずれてＸ1 の位置に来た場合には、帯状物Ａに作
用する浮上力は、ずれた側に作用する浮上力Ｐ1 が他側
に作用する浮上力Ｐ2 よりも大きくなる。このため、浮
上力Ｐ1 が作用する側が他側より上昇し、全体として傾
いた状態となる。そしてこの傾いた状態から戻り力が作
用して横ずれを矯正する向きの傾動モーメントを生じ、
帯状物Ａを傾け、従って帯状物Ａは中心に戻り調心する
ことになる。[0016] In FIG 4, when the strip A in conveyance to lateral center line of the strip A came shifted the position of the X 1 [delta] from the center line X of the static pressure pad 1, strip levitation force acting on the object a, the levitation force P 1 acting on the displaced side is larger than the floating force P 2 acting on the other side. Therefore, the side levitation force P 1 is applied is increased from the other side, the inclined state as a whole. And from this inclined state, a return force acts to generate a tilting moment in the direction to correct the lateral displacement,
The strip A is tilted, so that the strip A returns to the center and is centered.
【００１７】このようにして、搬送中における帯状物Ａ
の横ずれは防止され、また、横ずれが生じても、自動的
に且つ早期に調心し正常な搬送状態に復帰する。In this way, the belt-like material A during transportation
Is prevented, and even if a lateral shift occurs, the centering is automatically and early performed, and the normal transport state is restored.
【００１８】[0018]
【発明の効果】本発明によって、以下の効果を奏する。According to the present invention, the following effects can be obtained.
【００１９】（１） 静圧パッドの受圧面のノズル孔の
形状を調整するだけで、簡単で確実な調心機能を有する
非接触搬送装置を得ることができる。(1) A non-contact transfer device having a simple and reliable centering function can be obtained only by adjusting the shape of the nozzle hole on the pressure receiving surface of the static pressure pad.
【００２０】（２） 昇圧用ブロワ等搬送装置そのもの
に何等の構造上の変更を加えるものではなく、またリニ
アモーター等大がかりな装置を付加する必要もないの
で、既設の非接触搬送装置に簡単に適用できる。(2) It is not necessary to make any structural changes to the transfer device itself such as the pressure-blowing blower, and it is not necessary to add a large-scale device such as a linear motor. Applicable.
【００２１】（３） 水平搬送、垂直搬送型の何れにも
格別の設計上の変更を加えることなく適用できる。(3) The present invention can be applied to any of the horizontal transfer type and the vertical transfer type without any special design change.
【００２２】（４） リニアモーターなどの帯状物調心
のみに必要とされる設備が全く不要であるので設備費、
ランニングコスト共、従来の流体クッション式非接触搬
送装置と同程度である。(4) Since equipment required only for alignment of a strip such as a linear motor is completely unnecessary, equipment costs are reduced.
The running cost is almost the same as that of the conventional fluid cushion type non-contact transfer device.
【図１】 帯状物を曲げて搬送する垂直搬送型の非接触
搬送装置に適用した実施例を示す。FIG. 1 shows an embodiment applied to a vertical transfer type non-contact transfer device that bends and transfers a belt-shaped material.
【図２】 湾曲部に配置する静圧パッドの例を示す。FIG. 2 shows an example of a static pressure pad arranged on a curved portion.
【図３】 静圧パッドの受圧面に形成したノズル孔の形
状（ａ）と、このノズル孔から噴出される昇圧流体によ
る浮上力Ｐの分布状態（ｂ）を示す。FIG. 3 shows a shape (a) of a nozzle hole formed on a pressure receiving surface of a static pressure pad and a distribution state (b) of a levitation force P by a pressurized fluid ejected from the nozzle hole.
【図４】 本発明による搬送帯状物の調心作用の説明図
である。FIG. 4 is an explanatory view of the centering action of the transport strip according to the present invention.
Ａ 搬送帯状物 １ 静圧パッド ２ 受圧面 ３ ノズル孔 Ｘ 静圧パッドの幅方向の中心線 Ｘ1 搬送帯状物の幅方向の中心線位置A Conveyance band 1 Static pressure pad 2 Pressure receiving surface 3 Nozzle hole X Center line in width direction of static pressure pad X 1 Center line position in width direction of conveyance band
Claims (1)
ッションによる帯状物の非接触搬送装置において、静圧
パッドの受圧面に設けた搬送体浮上用流体を噴出する噴
出ノズル孔を、搬送帯状物に対する静圧発生面積がその
中心から両幅方向側縁に対して対称であり、且つ、両端
部付近の静圧発生面積を中央部付近の静圧発生面積より
大きくなるように形成した非接触搬送装置。In a non-contact conveying device for a band using a fluid cushion for applying a pressurized fluid to a lower surface of the band, a jet nozzle hole for jetting a carrier floating fluid provided on a pressure receiving surface of a static pressure pad is conveyed. The static pressure generation area for the belt-shaped object is symmetrical with respect to both widthwise side edges from the center, and the static pressure generation area near both ends is formed to be larger than the static pressure generation area near the center. Contact transfer device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4166414A JP2571326B2 (en) | 1992-06-24 | 1992-06-24 | Non-contact transport device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4166414A JP2571326B2 (en) | 1992-06-24 | 1992-06-24 | Non-contact transport device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0610066A JPH0610066A (en) | 1994-01-18 |
| JP2571326B2 true JP2571326B2 (en) | 1997-01-16 |
Family
ID=15830989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4166414A Expired - Lifetime JP2571326B2 (en) | 1992-06-24 | 1992-06-24 | Non-contact transport device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2571326B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4875375B2 (en) * | 2006-02-20 | 2012-02-15 | 新日本製鐵株式会社 | Gas cushion type nozzle |
-
1992
- 1992-06-24 JP JP4166414A patent/JP2571326B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0610066A (en) | 1994-01-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19960809 |