JPH03128113A - Feeding device for rolling oil - Google Patents
Feeding device for rolling oilInfo
- Publication number
- JPH03128113A JPH03128113A JP26469389A JP26469389A JPH03128113A JP H03128113 A JPH03128113 A JP H03128113A JP 26469389 A JP26469389 A JP 26469389A JP 26469389 A JP26469389 A JP 26469389A JP H03128113 A JPH03128113 A JP H03128113A
- Authority
- JP
- Japan
- Prior art keywords
- rolling oil
- mixer
- hot water
- valve
- rolling
- 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.)
- Granted
Links
- 239000010731 rolling oil Substances 0.000 title claims abstract description 87
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 84
- 239000003921 oil Substances 0.000 claims abstract description 36
- 238000005096 rolling process Methods 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 abstract description 11
- 239000007924 injection Substances 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 4
- 230000001934 delay Effects 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
- B21B45/0245—Lubricating devices
- B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
- B21B45/0251—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for strips, sheets, or plates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
Abstract
Description
この発明は熱間圧延の圧延油供給装置に関する。 The present invention relates to a rolling oil supply device for hot rolling.
【従来の技術１
熱間圧延において、圧延油は温水と混合され、ノズルか
ら圧延機に供給されている。
例えば第５図に示されるように、油圧延において、圧延
油は、圧延油タンク１から圧延油供給ポンプ２により、
各々流量調整弁３Ａ〜３Ｃ及び三方弁４Ａ〜４Ｃをそれ
ぞれ備えた圧延油供給管路５Ａ〜５Ｃを経て、混合器６
Ａ〜６Ｃに供給され、ここで、温水と混合されて、ノズ
ルＮ１〜Ｎ １０に供給するようにされている。
温水は、温水タンク７から各混合器６Ａ〜６Ｃに、温水
ポンプ８によって供給されるようになっている。
前記ノズルＮ１〜Ｎ ＩＯは鋼板の板幅方向に配置され
、両端のノズルＮ１とＮ １０は、鋼板のエツジ部に圧
延油をスフ゛レーするものであって、混合器６Ａに接続
されている。
又、中央の４個のノズルＮ４〜Ｎ７は、鋼板の板幅が例
えば１３００ｎＩ１１以下の場合に適合するのものであ
って、混合器６Ｂに接続されている。
又、ノズルＮ２、Ｎ３及びＮ ａ 、Ｎ ９は、板幅か
例えば１３００ｍｎ以上の場合に利用されるものであっ
て、混合器６Ｃに接続されている。
第５図の符号９Ａ〜９Ｃは、流量調整弁３Ａ〜３Ｃに隣
接して配置された流量計であって、この流量計と前記流
量調整弁３Ａ〜３Ｃによって、流量制御がなされる。
上記第５図に示される圧延油供給装置においては、ノズ
ルから流体を噴射しない場合は、三方弁４Ａ〜４Ｃを、
圧延油タンクｌ１ｌＩＩに切換え、圧延油を圧延油タン
クｌに環流するようにされている。
【発明が解決しようとする課題】
ところで、第５図に示される従来の圧延油供給装置にお
いては、圧延油の、ノズルからの噴射・停止は、三方弁
４Ａ〜４Ｃの切換えによって行われていて、三方弁４Ａ
〜４Ｃから各ノズルＮ１〜Ｎ １０までの距離が長い場
合は、三方弁４Ａ〜４Ｃが圧延油タンク１側に切換えら
れたとしても、混合器６Ａ〜６Ｃ内に流入する温水によ
って、三方弁から各ノズル間の管路に溜った油が温水に
よって吸引又は押出されて、圧延油噴射の停止までに時
間遅れが生じるという問題点があった。
又、ノズルからの噴射の開始の場合も同様の問題点があ
った。
特に、従来の圧延油供給装置は、１ｆｉ１環境性能や取
付スペースの問題から、三方弁をミル内に設置すること
が不可能であり、通常ハウジングの上部に設けられてい
たので、三方弁からノズルまでの距離が長くなり、上記
のような、圧延油の噴射・停止時の応答遅れの問題が更
に顕著となるという問題点があった。
従来は、三方弁からノズルまでの距離か１０１以上もあ
り、圧延油噴射・停止の時間遅れはう秒以上らあった。
又、上記応答遅れ、即ち圧延油の噴射や停止遅れにより
、圧延ロールへの板噛み込み時の噛み込み不能、及び、
圧延中の板・ロール間のスリップの発生により、操業が
不可能となることもあるという問題点があった。
この発明は上記従来の問題点に鑑みてなされたものであ
って、圧延油の噴射・停止の時間遅れを大幅に短縮する
ことができるようにした圧延油供給装置を提供すること
を目的とする。[Prior art 1] In hot rolling, rolling oil is mixed with hot water and supplied to a rolling mill through a nozzle. For example, as shown in FIG. 5, in hydraulic rolling, rolling oil is supplied from a rolling oil tank 1 by a rolling oil supply pump 2.
The mixer 6
A to 6C, where it is mixed with hot water and supplied to nozzles N1 to N10. Hot water is supplied from the hot water tank 7 to each of the mixers 6A to 6C by a hot water pump 8. The nozzles N1 to NIO are arranged in the width direction of the steel plate, and the nozzles N1 and N10 at both ends spray rolling oil onto the edge of the steel plate, and are connected to the mixer 6A. Moreover, the four nozzles N4 to N7 in the center are suitable for the case where the width of the steel plate is, for example, 1300 nI11 or less, and are connected to the mixer 6B. Further, the nozzles N2, N3, Na, and N9 are used when the plate width is, for example, 1300 mm or more, and are connected to the mixer 6C. Reference numerals 9A to 9C in FIG. 5 are flow meters arranged adjacent to the flow rate regulating valves 3A to 3C, and the flow rate is controlled by these flow meters and the flow rate regulating valves 3A to 3C. In the rolling oil supply device shown in FIG. 5 above, when fluid is not injected from the nozzle, the three-way valves 4A to 4C are
The rolling oil is switched to the rolling oil tank l1lII, and the rolling oil is recycled to the rolling oil tank l. [Problems to be Solved by the Invention] In the conventional rolling oil supply device shown in FIG. 5, injection and stopping of rolling oil from the nozzle is performed by switching the three-way valves 4A to 4C. , three-way valve 4A
If the distance from ~4C to each nozzle N1-N10 is long, even if the three-way valves 4A-4C are switched to the rolling oil tank 1 side, the hot water flowing into the mixers 6A-6C will cause the three-way valve to There is a problem in that the oil accumulated in the pipes between the nozzles is sucked or pushed out by the hot water, resulting in a time delay before the injection of rolling oil stops. Further, a similar problem occurs when starting injection from a nozzle. In particular, in conventional rolling oil supply devices, it was impossible to install a three-way valve inside the mill due to 1fi1 environmental performance and installation space issues, and it was usually installed at the top of the housing. There was a problem in that the distance to the rolling oil was increased, and the problem of response delay when injecting and stopping rolling oil, as described above, became even more pronounced. Conventionally, the distance from the three-way valve to the nozzle was more than 101 seconds, and the time delay between injection and stop of rolling oil was more than a second. In addition, due to the above-mentioned response delay, that is, the delay in spraying and stopping the rolling oil, it is impossible to bite the plate into the rolling roll, and
There was a problem in that slips between the plate and rolls during rolling could make operation impossible. This invention has been made in view of the above-mentioned conventional problems, and an object thereof is to provide a rolling oil supply device that can significantly shorten the time delay between injection and stop of rolling oil. .
この発明は、圧延油を温水と混合してノズルから圧延機
に供給するための圧延油供給装置において、圧延油と温
水を混合する混合器と、圧延油源と前記混合器との間の
圧延油供給管路に配置され、圧延油源を前記混合器又は
圧延油源へのリターン管路に選択的に接続する三方弁と
、前記混合器と前記ノズルとの間の混合油供給管路に配
置された閉止弁と、温水供給源と前記混合器との間の温
水供給管路から、前記混合器及び前記閉止弁を迂回して
前記混合油供給管路に至るバイパスと、このバイパスに
設けられ、前記閉止弁の閉止時のみ開かれる温水閉止弁
と、を備えて、上記目的を達成するものである。
又、前記混合器の入側で前記圧延油供給管路に、混合器
方向への油流のみを許容する逆止弁を配置し、前記バイ
パスよりも下流位置で前記温水供給管路に、混合器方向
への流れのみを許容する逆止弁を配置すると共に、これ
ら逆止弁、前記混合器、閉止弁、バイパス及び温水閉止
弁を、一体のブロック中に形成することにより上記目的
を達成するものである。This invention provides a rolling oil supply device for mixing rolling oil with hot water and supplying the mixture from a nozzle to a rolling mill, including a mixer for mixing rolling oil and hot water, and a rolling oil supply device between a rolling oil source and the mixer. a three-way valve disposed in the oil supply line for selectively connecting a rolling oil source to the mixer or a return line to the rolling oil source; and a mixing oil supply line between the mixer and the nozzle. a bypass that runs from a hot water supply pipe between a hot water supply source and the mixer to the mixed oil supply pipe, bypassing the mixer and the stop valve, and a bypass provided in the bypass; and a hot water shutoff valve that is opened only when the shutoff valve is closed, thereby achieving the above object. Further, a check valve that only allows oil flow in the direction of the mixer is disposed in the rolling oil supply pipe on the inlet side of the mixer, and a check valve that allows oil flow only in the direction of the mixer is arranged in the hot water supply pipe at a position downstream of the bypass. The above objective is achieved by arranging a check valve that allows flow only in the direction of the container, and forming these check valves, the mixer, the shut-off valve, the bypass, and the hot water shut-off valve in an integrated block. It is something.
この発明において、混合器の下流側に閉止弁か設けられ
、且つこの混合器と閉止弁を迂回して、温水管路が温水
閉止弁を介してノズルに接続されているので、圧延油の
噴射停止の場合は、閉止弁を閉じ、且つ温水閉止弁を開
けて、温水を混合器及び閉止弁を迂回してノズルに供給
することにより、三方弁、混合器及び閉止弁間に溜った
圧延油が温水によって吸い出されることがなく、又、噴
射開始時には、バイパスを経た温水の供給が停止される
と同時に、閉止弁が開き、三方弁から混合器、閉止弁に
至る管路に溜った圧延油が供給されるので、圧延油の噴
射・停止の時間遅れが大幅に短縮される。
又、請求項２によれば、混合器、閉止弁、バイパス、温
水閉止弁及び逆止弁が、一体のブロックに形成されてい
るので、ミル内のノズルに近く配置することができ、圧
延油の噴射・停止の時間遅れを更に短縮することができ
る。In this invention, a shutoff valve is provided on the downstream side of the mixer, and the hot water pipe is connected to the nozzle via the hot water shutoff valve, bypassing the mixer and the shutoff valve. In the case of a stoppage, close the shutoff valve, open the hot water shutoff valve, and supply hot water to the nozzle bypassing the mixer and shutoff valve to remove the rolling oil accumulated between the three-way valve, mixer, and shutoff valve. is not sucked out by the hot water, and at the start of injection, the supply of hot water via the bypass is stopped and at the same time the shutoff valve opens, removing the rolling stock that has accumulated in the pipeline from the three-way valve to the mixer and the shutoff valve. Since oil is supplied, the time delay between injection and stop of rolling oil is greatly reduced. Further, according to claim 2, the mixer, the shutoff valve, the bypass, the hot water shutoff valve, and the check valve are formed in an integrated block, so that they can be placed close to the nozzle in the mill, and the rolling oil The time delay between injection and stop can be further shortened.
以下本考案の実施例を図面を参照して説明する。
この実施例は、第１図〜第４図に示されるように、圧延
油タンク１０の圧延油及び温水タンク１２の温水を、混
合器１４により混合して、ノズルＮ、〜Ｎ ＩＱから、
圧延機（図示省略）に供給するための圧延油供給装置で
あって、圧延油タンク１０から圧延油供給ポンプ１６を
経て混合器１４に圧延油を供給するための圧延油供給管
路１８に三方弁２０を設けると共に、混合器１４とノズ
ルＮ１〜Ｎ １０の間の混合油供給管路２２から分岐さ
れた混合油供給管路２２Ａ〜２２Ｃに閉止弁２４Ａ〜２
４Ｃをそれぞれ設け、一方、前記温水タンク１２から温
水ポンプ２６により混合器１４に温水を供給するための
温水供給管路２８と、前記３本の混合油供給管路２２Ａ
〜２２Ｃとの間には、混合器１４及び閉止弁２４Ａ〜２
４Ｃを介するバイパス３０及びこれから３本に分岐され
たバイパス３０Ａ〜３０Ｃと、これらバイパス３０Ａ〜
３０Ｃにそれぞれ配置され、前記閉止弁２４Ａ〜２４Ｃ
が閉止するときのみ開かれる温水閉止弁３２Ａ〜３２Ｃ
と、を設けたものである。
図の符号３４は、前記圧延油供給管路１８の途中に、混
合器１４と三方弁２０との間に配置された逆止弁、３６
は前記温水供給管路２８の途中で、該温水供給管路２８
と前記バイパス３０との接続部下流に配置された逆止弁
をそれぞれ示す。
前記三方弁２０は、圧延油タンク１０から送られる圧延
油を、混合器１４方向又は圧延油タンク１０へ戻すため
のリターン管路３８に選択的に切換えられるものである
。
前記混合油供給管路２２Ａは、被圧延材の板幅方向両端
に配置されたノズルＮ１とＮ １Ｇに、混合油供給管路
２２Ｂは被圧延材板輻方向中央の４個のノズルＮ４〜Ｎ
７に、又混合油供給管路２２Ａ〜２２Ｃは中央の４個の
ノズルと両端の２個のノズルとの間のノズルＮ２、Ｎ３
及びＮ ａ 、Ｎ ９に各々接続されている。
前記混合器１４、混合油供給管路２２．２２Ａ〜２２Ｃ
１閉止弁２４Ａ〜２４Ｃ、バイパス３０．３０Ａ〜３０
Ｃ１温水閉止弁３２Ａ〜３２Ｃ１及び逆止弁３４．３６
は、第２図に示されるように一体のブロック４０に形成
されている。
前記逆止弁３４と３６は、第３図に示されるように、図
において上下方向に平行に配置された圧延油供給管路１
８の端末部１８Ａと温水供給管路２８の端末部２８Ａに
、各々配置されている。
又、前記温水供給管路２８の端末部２８Ａには、逆止弁
３６の上流側に前記バイパス３０の入側端が連通形成さ
れている。
前記混合器１４は図において上下方向の温水通路１４Ａ
と、この温水通路１４Ａに直交して形成され、前記圧延
油供給管路１８の端末部１８Ａに接続される圧延油管路
１４Ｂとを備え、両者の交差する箇所で、圧延油と温水
が合流されるようになっている。
又、混合器１４の出口１４Ｃは３本の混合油供給管路２
２Ａ〜２２Ｃに接続される混合油供給管路２２に対して
断面積において約１／２とされ、これによって、出口１
４Ｃから流出した圧延油と温水の混合流体が、通路断面
積の急激な拡大により渦流を生じ、両者が均一に混合さ
れるようになっている。
前記混合油供給管路２２は、第４図に示されるように、
図において横方向に平行に配置されたポペット弁である
閉止弁２４Ａ〜２４Ｃの、スプール２５Ａ〜２５Ｃの周
囲に連通されている。
これら閉止弁２４Ａ〜２４Ｃは、各々ばね４０によって
図において左方向に付勢されたとき、弁体４２が弁座４
４から離間して、混合油供給管路２２を混合油供給管路
２２Ａ〜２２Ｃに連通し、ス、図の左端から、圧縮空気
ノズル４６Ａ〜４６Ｃを介して高圧空気が導入されたと
き、該高圧空気に押されて、ばね４２に抗して右行し、
弁体４２が弁Ｆｉ４４に接触することによって、混合油
供給管路２２と混合油供給管路２２Ａ〜２２Ｃの連通か
遮断されるようになっている。
前記バイパス３０Ａ〜３０Ｃを開閉する温水閉止弁３２
Ａ〜３２Ｃも、前記閉止弁２４Ａ〜２４Ｃと同様の構成
のポペット弁であって、圧縮空気によって作動されるよ
うになっている。
又、これら閉止弁２４Ａ〜２４Ｃと温水閉止弁３２Ａ〜
３２Ｃとは、それぞれ対応して選択的にＯＮ・ＯＦＦさ
れるようになっている。
即ち、例えば閉止弁２４Ａが閉じられるときは温水閉止
弁３２Ａが開き、逆に、閉止弁２４Ａが閉じられるとき
は温水閉止弁３２Ａが開かれるように構成されている。
前記ブロック４０は、その全体寸法が１５０１ｘ １７
７ｒｎｍｘ １９２Ｔｌｌｎであって、圧延機のミル内
に配置され、閉止弁２４Ａ〜２４ＣがらノズルＮ１〜Ｎ
１０までの距離は、１．５１以内である。
次に上記実施例の作用について説明する。
圧延油供給ポンプ１６により、圧延油タンク１０内の圧
延油を圧延油供給管路１８に送り出すと同時に、温水ポ
ンプ２６により温水タンク１２内の温水を温水供給管路
２８に送り出す。
このとき、三方弁２０は、混合器１４１１Ｉ！Ｉに切換
えておく。
ポンプによって圧送された圧延油及び温水は、それぞれ
逆止弁３４及び３６を押し開き、混合器１４に到達し、
ここで合流され、更に前記出口１４Ｃから混合油供給管
路２２内に流出する際に、断面積の急激な拡大によって
生ずる渦流により、均一に撹拌混合される。
この混合油供給管路２２から、混合油は閉止弁２４Ａ〜
２４Ｃに到達する。
閉止弁２４Ａ〜２４Ｃは、予め、開状態とされ、又、温
水閉止弁３２Ａ〜３２Ｃは閉止状態とされている。
ここで、圧延される被圧延材の板幅が狭い場合は、閉止
弁２４Ｃが閉じられ、対応する温水閉止弁３２Ｃが開か
れ、ノズルＮ２、Ｎ３及びＮ８、Ｎ９からは温水のみが
噴射されることになる。
圧延油の噴射を停止する場合は、三方弁２０を圧延油タ
ンク１０測に切換えると同時に、閉止弁２４Ａ〜２４Ｃ
を閉じ、温水閉止弁３２Ａ〜３２Ｃを開く。
従って圧延油の混合器１４への供給が停止され、又、温
水は、逆止弁３６の上流側からバイパス３０．３０Ａ〜
３０Ｃを介して、閉止弁２４Ａ〜２４Ｃの下流側で、混
合油供給管路２２Ａ〜２２Ｃに供給され、ここから各ノ
ズルＮ１〜Ｎ ＴＯに供給される。
従って、ノズルには、圧延油を噴霧していない状態で温
水が常時流され、ノズルの詰りを防止する。
ここで、前記三方弁２０及び閉止弁２４Ａ〜２４Ｃが閉
じられると同時に、温水閉止弁３２Ａ〜３２Ｃが開放さ
れると、逆止弁３４．３６と閉止弁２４Ａ〜２４Ｃとの
間における圧延油、温水及びこれらの混合油がそのまま
閉じ込められ、温水がバイパスを通ってノズルに供給さ
れても、該温水によって閉じ込められた圧延油等が吸い
出されることはない。
従って、バイパスを通って供給される温水によって押出
される混合油は、閉止弁２４Ａ〜２４ＣとノズルＮ１〜
Ｎ １０との間に残ったもののみとなり、これがタイム
ラグとなる。
実施例によれば、閉止弁２４Ａ〜２４ＣからノズルＮ１
〜Ｎ １０までは約１，５１であり、噴射及び停止の時
間崖れは１秒以内であった。
又この実施例においては、逆止弁３４．３６、混合器１
４、混合油供給管路２２．２２Ａ〜２２Ｃ、バイパス３
０．３０Ａ〜３０Ｃ１閉止弁２４Ａ〜２４Ｃ５温水閉止
弁３２Ａ〜３２Ｃが一体のブロック４０に形成されてい
るので、ミル内の劣悪な環境にも十分耐えることができ
る。又小型に形成できるので、ミル内の狭いスペースに
も配置することができる。
なお上記実施例において、閉止弁２４Ａ〜２４Ｃ及び温
水閉止弁３２Ａ〜３２Ｃは、共に圧縮空気によって駆動
されるポペット弁とされているか、本発明はこれに限定
されるものでなく、池の構成の閉止弁であってもよい。
又、逆止弁は、圧延油供給管路１８と温水供給管路２８
の両方に配置されているが、これは、圧延油が温水によ
って吸い出されることを防止するものであればよく、従
って、温水供給管路２８１１１Ｉの逆止弁３６のみであ
ってもよい。Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, as shown in FIGS. 1 to 4, rolling oil in a rolling oil tank 10 and hot water in a hot water tank 12 are mixed in a mixer 14, and from nozzles N, to N IQ,
A rolling oil supply device for supplying rolling oil to a rolling mill (not shown), which is connected to a rolling oil supply pipe 18 on three sides for supplying rolling oil from a rolling oil tank 10 to a mixer 14 via a rolling oil supply pump 16. In addition to providing the valve 20, shutoff valves 24A to 2 are provided in the mixed oil supply pipes 22A to 22C branched from the mixed oil supply pipe 22 between the mixer 14 and the nozzles N1 to N10.
4C, and on the other hand, a hot water supply pipe 28 for supplying hot water from the hot water tank 12 to the mixer 14 by the hot water pump 26, and the three mixed oil supply pipes 22A.
~22C, the mixer 14 and the shutoff valves 24A~2
Bypass 30 via 4C, bypasses 30A to 30C branched from this into three, and these bypasses 30A to 30C
30C, and the shutoff valves 24A to 24C
Hot water shutoff valves 32A to 32C that are opened only when closed.
. Reference numeral 34 in the figure denotes a check valve 36 disposed in the middle of the rolling oil supply pipe 18 between the mixer 14 and the three-way valve 20.
is in the middle of the hot water supply pipe 28, and the hot water supply pipe 28
and a check valve disposed downstream of the connection with the bypass 30, respectively. The three-way valve 20 is configured to selectively switch the rolling oil sent from the rolling oil tank 10 to the mixer 14 direction or to the return pipe 38 for returning to the rolling oil tank 10. The mixed oil supply pipe 22A is connected to nozzles N1 and N1G arranged at both ends in the plate width direction of the material to be rolled, and the mixed oil supply pipe 22B is provided to four nozzles N4 to N4 located at the center of the material to be rolled in the plate width direction.
7, and the mixed oil supply pipes 22A to 22C are connected to nozzles N2 and N3 between the four nozzles in the center and the two nozzles at both ends.
and N a and N 9 respectively. The mixer 14, mixed oil supply pipes 22.22A to 22C
1 Shutoff valve 24A-24C, bypass 30.30A-30
C1 hot water stop valve 32A to 32C1 and check valve 34.36
is formed into an integral block 40 as shown in FIG. As shown in FIG. 3, the check valves 34 and 36 are connected to the rolling oil supply pipe 1 arranged vertically in parallel in the figure.
8 and an end portion 28A of the hot water supply pipe 28, respectively. Further, an inlet end of the bypass 30 is formed in communication with the terminal portion 28A of the hot water supply pipe 28 on the upstream side of the check valve 36. The mixer 14 is a vertical hot water passage 14A in the figure.
and a rolling oil pipe 14B formed orthogonally to the hot water passage 14A and connected to the end portion 18A of the rolling oil supply pipe 18, and the rolling oil and hot water are combined at the intersection of the two. It has become so. Further, the outlet 14C of the mixer 14 is connected to three mixed oil supply pipes 2.
The cross-sectional area is approximately 1/2 that of the mixed oil supply pipe 22 connected to 2A to 22C, so that the outlet 1
The mixed fluid of rolling oil and hot water flowing out from 4C generates a vortex due to the rapid expansion of the passage cross-sectional area, so that the two are uniformly mixed. The mixed oil supply pipe 22, as shown in FIG.
Shutoff valves 24A to 24C, which are poppet valves arranged in parallel in the lateral direction in the figure, are communicated around the spools 25A to 25C. When each of these stop valves 24A to 24C is biased leftward in the figure by a spring 40, the valve body 42 moves toward the valve seat 4.
4, the mixed oil supply pipe 22 is connected to the mixed oil supply pipes 22A to 22C, and when high pressure air is introduced from the left end of the figure through the compressed air nozzles 46A to 46C, Pushed by high pressure air, it moves to the right against the spring 42,
When the valve body 42 contacts the valve Fi44, communication between the mixed oil supply pipe 22 and the mixed oil supply pipes 22A to 22C is cut off. Hot water shutoff valve 32 that opens and closes the bypasses 30A to 30C
A to 32C are also poppet valves having the same structure as the shutoff valves 24A to 24C, and are operated by compressed air. In addition, these shutoff valves 24A to 24C and hot water shutoff valves 32A to
32C are selectively turned on and off in correspondence with each other. That is, for example, when the shutoff valve 24A is closed, the hot water shutoff valve 32A is opened, and conversely, when the shutoff valve 24A is closed, the hot water shutoff valve 32A is opened. The block 40 has an overall dimension of 1501 x 17
7rnmx 192Tlln, which is arranged in the mill of the rolling mill, and has stop valves 24A to 24C and nozzles N1 to N1.
The distance to 10 is within 1.51. Next, the operation of the above embodiment will be explained. The rolling oil supply pump 16 sends out the rolling oil in the rolling oil tank 10 to the rolling oil supply pipe 18, and at the same time, the hot water pump 26 sends out the hot water in the hot water tank 12 to the hot water supply pipe 28. At this time, the three-way valve 20 is connected to the mixer 1411I! Switch to I. The rolling oil and hot water pumped by the pump push open the check valves 34 and 36, respectively, and reach the mixer 14,
The oils are combined here, and when they flow out from the outlet 14C into the mixed oil supply pipe 22, they are uniformly stirred and mixed by the vortex generated by the rapid expansion of the cross-sectional area. From this mixed oil supply pipe 22, the mixed oil is supplied to the shutoff valves 24A to 24A.
Reach 24C. The shutoff valves 24A to 24C are previously opened, and the hot water shutoff valves 32A to 32C are closed. Here, if the width of the material to be rolled is narrow, the shutoff valve 24C is closed, the corresponding hot water shutoff valve 32C is opened, and only hot water is injected from the nozzles N2, N3, N8, and N9. It turns out. When stopping the injection of rolling oil, switch the three-way valve 20 to the 10-meter rolling oil tank, and at the same time close the stop valves 24A to 24C.
, and open the hot water shutoff valves 32A to 32C. Therefore, the supply of rolling oil to the mixer 14 is stopped, and hot water is supplied from the bypass 30.30A to the upstream side of the check valve 36.
30C, it is supplied to the mixed oil supply lines 22A to 22C on the downstream side of the shutoff valves 24A to 24C, and from there to the respective nozzles N1 to NTO. Therefore, warm water is constantly flowed through the nozzle without spraying rolling oil, thereby preventing the nozzle from clogging. Here, when the three-way valve 20 and the stop valves 24A to 24C are closed and the hot water stop valves 32A to 32C are opened at the same time, the rolling oil between the check valve 34, 36 and the stop valves 24A to 24C, The hot water and mixed oil thereof are trapped as they are, and even if the hot water is supplied to the nozzle through the bypass, the rolling oil etc. trapped by the hot water will not be sucked out. Therefore, the mixed oil pushed out by the hot water supplied through the bypass flows through the shutoff valves 24A to 24C and the nozzles N1 to
Only what remains between N10 and this becomes a time lag. According to the embodiment, from the stop valves 24A to 24C to the nozzle N1
~N10 was about 1.51, and the time difference between injection and stop was within 1 second. Also, in this embodiment, the check valves 34 and 36, the mixer 1
4. Mixed oil supply pipe 22.22A to 22C, bypass 3
Since the 0.30A to 30C1 shutoff valves 24A to 24C5 and the hot water shutoff valves 32A to 32C are formed in an integrated block 40, it can sufficiently withstand the harsh environment inside the mill. Moreover, since it can be formed compactly, it can be placed even in a narrow space within the mill. In the above embodiment, the shutoff valves 24A to 24C and the hot water shutoff valves 32A to 32C are both poppet valves driven by compressed air. It may also be a shutoff valve. Further, the check valve is connected to the rolling oil supply pipe 18 and the hot water supply pipe 28.
However, it is sufficient that the check valve 36 of the hot water supply pipe 28111I is provided as long as it prevents the rolling oil from being sucked out by the hot water.
本発明は上記のように構成したので、ノズルからの圧延
油の噴射、停止時の応答時間の遅れを大幅に短縮するこ
とができるという優れた効果を有する。
又、主たる構成要素である混合器、閉止弁、温水閉止弁
、バイパス及び逆止弁を一体のブロックに形成したので
、スペースが狭く、劣悪な環境であるミル内にも設置す
ることができるという効果がある。Since the present invention is constructed as described above, it has the excellent effect of being able to significantly shorten the delay in response time when the rolling oil is injected from the nozzle and stopped. In addition, the main components, which are the mixer, shutoff valve, hot water shutoff valve, bypass and check valve, are formed into a single block, so it can be installed inside a mill where space is limited and the environment is poor. effective.
第１図は本発明に係る圧延油供給装置の実施例を示す管
路図、第２図は同実施例の要部を示す立体管路図、第３
図及び第４図は第２図の■−■線０・・・圧延油タンク
、
２・・・温水タンク、
４・・・混合器、
６・・・圧延油供給ポンプ、
８・・・圧延油供給管路、
Ｏ・・・三方弁、
２．２２Ａ〜２２Ｃ・・・混合油供給管路、４Ａ〜２４
Ｃ・・・閉止弁、
６・・・温水ポンプ、
８・・・温水供給管路、
０．３０Ａ〜３０Ｃ・・・バイパス、
２Ａ〜３２Ｃ・・・温水閉止弁、
３４．３６・・・逆止弁、
３８・・・リターン管路、
４０・・・プロ・ｙり。FIG. 1 is a pipe diagram showing an embodiment of the rolling oil supply device according to the present invention, FIG. 2 is a three-dimensional pipe diagram showing the main parts of the same embodiment, and FIG.
Figures and Figure 4 show the ■-■ line in Figure 2 0...Rolling oil tank, 2...Hot water tank, 4...Mixer, 6...Rolling oil supply pump, 8...Rolling Oil supply pipe, O... Three-way valve, 2.22A-22C... Mixed oil supply pipe, 4A-24
C... Shutoff valve, 6... Hot water pump, 8... Hot water supply pipe, 0.30A~30C... Bypass, 2A~32C... Hot water shutoff valve, 34.36... Reverse Stop valve, 38... Return pipe, 40... Pro-yuri.
Claims (2)
するための圧延油供給装置において、圧延油と温水を混
合する混合器と、圧延油源と前記混合器との間の圧延油
供給管路に配置され、圧延油源を前記混合器又は圧延油
源へのリターン管路に選択的に接続する三方弁と、前記
混合器と前記ノズルとの間の混合油供給管路に配置され
た閉止弁と、温水供給源と前記混合器との間の温水供給
管路から、前記混合器及び前記閉止弁を迂回して前記混
合油供給管路に至るバイパスと、このバイパスに設けら
れ、前記閉止弁の閉止時のみ開かれる温水閉止弁と、を
有してなる圧延油供給装置。(1) In a rolling oil supply device for mixing rolling oil with hot water and supplying the mixture from a nozzle to a rolling mill, there is a mixer for mixing rolling oil and hot water, and rolling oil between a rolling oil source and the mixer. a three-way valve disposed in the supply line and selectively connecting a rolling oil source to the mixer or a return line to the rolling oil source; and a three-way valve disposed in the mixing oil supply line between the mixer and the nozzle. a shutoff valve, a bypass that runs from a hot water supply pipe between a hot water supply source and the mixer to the mixed oil supply pipe, bypassing the mixer and the shutoff valve, and a bypass provided in the bypass; and a hot water shutoff valve that is opened only when the shutoff valve is closed.
油供給管路に、混合器方向への油流のみを許容する逆止
弁を配置し、前記バイパスよりも下流位置で前記温水供
給管路に、混合器方向への流れのみを許容する逆止弁を
配置すると共に、これら逆止弁、前記混合器、閉止弁、
バイパス及び温水閉止弁を、一体のブロック中に形成し
たことを特徴とする圧延油供給装置。(2) In claim 1, a check valve that allows oil flow only toward the mixer is disposed in the rolling oil supply pipe on the inlet side of the mixer, and the hot water is disposed at a position downstream of the bypass. A check valve that allows flow only in the direction of the mixer is arranged in the supply pipe, and these check valves, the mixer, the stop valve,
A rolling oil supply device characterized in that a bypass and a hot water stop valve are formed in an integrated block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26469389A JPH03128113A (en) | 1989-10-11 | 1989-10-11 | Feeding device for rolling oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26469389A JPH03128113A (en) | 1989-10-11 | 1989-10-11 | Feeding device for rolling oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03128113A true JPH03128113A (en) | 1991-05-31 |
| JPH0545329B2 JPH0545329B2 (en) | 1993-07-08 |
Family
ID=17406883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26469389A Granted JPH03128113A (en) | 1989-10-11 | 1989-10-11 | Feeding device for rolling oil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03128113A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06190427A (en) * | 1992-12-25 | 1994-07-12 | Kawasaki Steel Corp | Device for supplying rolling oil |
| KR20020010191A (en) * | 2000-07-27 | 2002-02-04 | 이구택 | Cold rolling oil spray apparatus and the spray method having good surface cleaning degree of steel plate |
| WO2003000437A1 (en) * | 2001-06-23 | 2003-01-03 | Sms Demag Aktiengesellschaft | Method and nozzle arrangement for a variable-width lubrication of the rolling nip of a rolling stand |
| KR100668698B1 (en) * | 2005-11-08 | 2007-01-16 | 주식회사 포스코 | Apparatus and method supplying lubricant in endless hot rolling equipment |
| JP2010125481A (en) * | 2008-11-26 | 2010-06-10 | Kyodo Yushi Co Ltd | Apparatus for supplying mixed liquid for rolling lubrication |
| CN101829692A (en) * | 2010-04-23 | 2010-09-15 | 宝钢工程技术集团有限公司 | Device for reducing volume of emulsion liquid-feed main tank of rolling mill and method thereof |
| JP2013202643A (en) * | 2012-03-28 | 2013-10-07 | Nisshin Steel Co Ltd | Rolling lubricant supply device |
-
1989
- 1989-10-11 JP JP26469389A patent/JPH03128113A/en active Granted
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06190427A (en) * | 1992-12-25 | 1994-07-12 | Kawasaki Steel Corp | Device for supplying rolling oil |
| KR20020010191A (en) * | 2000-07-27 | 2002-02-04 | 이구택 | Cold rolling oil spray apparatus and the spray method having good surface cleaning degree of steel plate |
| KR100849118B1 (en) * | 2001-06-23 | 2008-07-30 | 에스엠에스 데마그 악티엔게젤샤프트 | Method and nozzle arrangement for a variable-width lubrication of the rolling nip of a rolling stand |
| WO2003000437A1 (en) * | 2001-06-23 | 2003-01-03 | Sms Demag Aktiengesellschaft | Method and nozzle arrangement for a variable-width lubrication of the rolling nip of a rolling stand |
| AU2002317793B2 (en) * | 2001-06-23 | 2007-06-28 | Sms Demag Aktiengesellschaft | Method and nozzle arrangement for a variable-width lubrication of the rolling nip of a rolling stand |
| CZ298355B6 (en) * | 2001-06-23 | 2007-09-05 | Sms Demag Aktiengesellschaft | Method and arrangement of nozzles for a variable-width lubrication of the rolling nip in rolling stands |
| US7266984B2 (en) | 2001-06-23 | 2007-09-11 | Sms Demag Ag | Method and nozzle arrangement for a variable-width lubrication of the rolling-nip of a rolling stand |
| KR100668698B1 (en) * | 2005-11-08 | 2007-01-16 | 주식회사 포스코 | Apparatus and method supplying lubricant in endless hot rolling equipment |
| JP2009514686A (en) * | 2005-11-08 | 2009-04-09 | ポスコ | Rolling oil supply apparatus and method for continuous hot rolling equipment |
| JP4773525B2 (en) * | 2005-11-08 | 2011-09-14 | ポスコ | Rolling oil supply apparatus and method for continuous hot rolling equipment |
| US8096159B2 (en) | 2005-11-08 | 2012-01-17 | Posco | Apparatus and method for supplying lubricant in endless hot rolling equipment |
| JP2010125481A (en) * | 2008-11-26 | 2010-06-10 | Kyodo Yushi Co Ltd | Apparatus for supplying mixed liquid for rolling lubrication |
| CN101829692A (en) * | 2010-04-23 | 2010-09-15 | 宝钢工程技术集团有限公司 | Device for reducing volume of emulsion liquid-feed main tank of rolling mill and method thereof |
| JP2013202643A (en) * | 2012-03-28 | 2013-10-07 | Nisshin Steel Co Ltd | Rolling lubricant supply device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0545329B2 (en) | 1993-07-08 |
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