JPH01170520A - Method for controlling ascending and descending of coil car - Google Patents

Method for controlling ascending and descending of coil car

Info

Publication number
JPH01170520A
JPH01170520A JP32671287A JP32671287A JPH01170520A JP H01170520 A JPH01170520 A JP H01170520A JP 32671287 A JP32671287 A JP 32671287A JP 32671287 A JP32671287 A JP 32671287A JP H01170520 A JPH01170520 A JP H01170520A
Authority
JP
Japan
Prior art keywords
coil
weight
pressure
saddle
regulating valve
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
Application number
JP32671287A
Other languages
Japanese (ja)
Inventor
Kazumitsu Sanbondake
三本竹 一光
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
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP32671287A priority Critical patent/JPH01170520A/en
Publication of JPH01170520A publication Critical patent/JPH01170520A/en
Pending legal-status Critical Current

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  • Winding, Rewinding, Material Storage Devices (AREA)

Abstract

PURPOSE:To reduce the differential pressure before and behind a flow regulating valve and to control an ascending speed of a saddle at a low speed by providing a pressure regulating valve in a hydraulic circuit and setting hydraulic pressure according to the weight of a metallic strip coil. CONSTITUTION:In an inlet coil car 1, when an pressure regulating valve 19 is controlled according to the weight W of a metallic strip coil, the outlet hydraulic pressures of the flow rate regulating valves 17, 18 are fixed in spite of the weight of the metallic strip and the ascending speed of the saddle 2 on which the metallic strip is mounted can be controlled to be fixed. In an outlet coil, when the pressure regulating valve 19 is controlled, the differential pressures before and behind the flow regulating valves 17, 18 are reduced in spite of the weight W of the metallic strip and the ascending speed of the saddle 2 on which the metallic strip coil is mounted can be controlled at a low speed.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、金属ストリップコイルを搬送するコイルカー
の昇降制御方法に係り、積載される金属ストリップコイ
ルの重量の大小にかかわらず一定速度で昇降できるコイ
ルカーの昇降制御方法に関する。
[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a method for controlling the elevation of a coil car that transports metal strip coils, which allows the coil car to be raised and lowered at a constant speed regardless of the weight of the loaded metal strip coils. This invention relates to a method for controlling the elevation and descent of a coil car.

〈従来の技術〉 金属ストリップ用各種処理ラインにおいて、処理ライン
の入側ではストリップコイルをペイオフリールで巻戻し
、出側では処理済みのストリップをテンションリールに
よりコイル状に巻取っている。そして、ストリップコイ
ルをペイオフリールに挿入するのに、また巻取られたコ
イルをテンションリールから抜出するのにコイルカーが
使用されている。
<Prior Art> In various processing lines for metal strips, a strip coil is rewound on a payoff reel on the input side of the processing line, and the processed strip is wound into a coil shape on a tension reel on the output side. A coil car is used to insert the strip coil into the payoff reel and to extract the wound coil from the tension reel.

これを図で説明すると、第3図において、1はコイルカ
ーを示し、台車2にサドル3が設けられており、リフト
シリンダー4により昇降するようになっている。また、
台車2には車輪5が設けられており、レール6上を図示
しないモータ、シリンダー等により走行するようになっ
ている。7はペイオフリールであり、その巻戻軸8にコ
イルカー1により挿入されたコイル11を紙面に略垂直
方向に巻戻す、ここでコイルカー1は、位置Aでコイル
11を受は取り、ペイオフリール7側へ移動する。この
間、リフトシリンダー4によりコイル11を上昇させ、
位置Bで高さ調芯を完了する。そしてこの状態で、コイ
ルカー1は更にペイオフリール7側へ移動して、コイル
11を巻戻軸8へ挿入する。
To explain this with a diagram, in FIG. 3, reference numeral 1 indicates a coil car, a bogie 2 is provided with a saddle 3, and is raised and lowered by a lift cylinder 4. Also,
The trolley 2 is provided with wheels 5 and runs on rails 6 by a motor, cylinder, etc. (not shown). 7 is a payoff reel, and the coil car 1 inserts the coil 11 into the unwinding shaft 8 and rewinds it in a direction substantially perpendicular to the plane of the paper. Move to the side. During this time, the coil 11 is raised by the lift cylinder 4,
Complete height alignment at position B. In this state, the coil car 1 further moves toward the payoff reel 7 and inserts the coil 11 into the unwinding shaft 8.

第4図はテンションリール9の近傍を示したもので、テ
ンションリール9に巻取られたコイル11を、コイルカ
ー1によりその巻取軸10から抜取るが、この時サドル
3はリフトシリンダー4により上昇してコイル11の下
端に接触し、この状態でコイルカー2はテンシロンリー
ル9から離れる方向に移動してコイル11を抜取るので
ある。
FIG. 4 shows the vicinity of the tension reel 9. The coil 11 wound on the tension reel 9 is removed from the winding shaft 10 by the coil car 1. At this time, the saddle 3 is raised by the lift cylinder 4. The coil car 2 then comes into contact with the lower end of the coil 11, and in this state the coil car 2 moves in a direction away from the tensilon reel 9 and extracts the coil 11.

〈発明が解決しようとする問題点〉 しかしながら、ペイオフリールにコイルを挿入する入側
コイルカーにおいては、コイルの重量が変化するとコイ
ルを載置したサドルの上昇速度も変化して、停止位置が
バラつくという問題がある。
<Problems to be Solved by the Invention> However, in the entry side coil car where the coil is inserted into the payoff reel, if the weight of the coil changes, the rising speed of the saddle on which the coil is placed also changes, causing variations in the stopping position. There is a problem.

即ち、第5図に示すよううに、リフトシリンダー4への
圧油供給配管12の途中には流量調整弁13が設けられ
ており、一定の流量で圧油がリフトシリンダー4に供給
されるようになっているが、供給圧力Po(kg/d)
が一定のため、次式でわかるように、コイル重量W (
kg)が変化すると、流量調整弁13の前後の差圧ΔP
 (kg/cii)が変化する。
That is, as shown in FIG. 5, a flow rate regulating valve 13 is provided in the middle of the pressure oil supply pipe 12 to the lift cylinder 4, so that pressure oil is supplied to the lift cylinder 4 at a constant flow rate. However, the supply pressure Po (kg/d)
Since is constant, the coil weight W (
kg) changes, the differential pressure ΔP before and after the flow rate regulating valve 13 changes.
(kg/cii) changes.

Δp−p、−p = p、 −」」L(1) ここで、 P拳:供給圧力(kg/cd)P:流量調整
弁出側圧力(kg / c4 )W:コイル重量(kg
) −0:サドル等の重量(kg) A:リフトシリンダーの断面種(cd)流量調整弁13
の前後の差圧ΔPが変化すると、流量が変化し、その結
果サドルの上昇速度が変化する0例えばコイルの重量W
が大となり、差圧ΔPが小になると、流量調整弁13の
特性に応じて、流量は小となりサドルの上昇速度は小と
なる。そして、上昇速度が変化すると、サドルの停止位
置がバラつくことになり、第3図に示す位置Bでの調芯
高さが変化し、コイルのペイオフリールの挿入が困難と
なる。
Δp-p, -p = p, -''L (1) where, P: Supply pressure (kg/cd) P: Flow rate adjustment valve outlet pressure (kg/c4) W: Coil weight (kg)
) -0: Weight of saddle, etc. (kg) A: Cross-sectional type of lift cylinder (cd) Flow rate adjustment valve 13
When the differential pressure ΔP before and after changes, the flow rate changes, and as a result, the rising speed of the saddle changes. For example, the weight of the coil W
becomes large and the differential pressure ΔP becomes small, the flow rate becomes small and the rising speed of the saddle becomes small depending on the characteristics of the flow rate regulating valve 13. If the rising speed changes, the stopping position of the saddle will vary, and the alignment height at position B shown in FIG. 3 will change, making it difficult to insert the payoff reel of the coil.

一方、テンシロンリールで巻取られたコイルを抜出す出
側コイルカーにおいては、サドルを上昇させる際にその
押上刃が強いとコイルに押疵を発生させたり、コイルを
介してテンシロンリール、巻取軸に悪影響を与えたりす
る。
On the other hand, in the coil car on the exit side that extracts the coil wound on the Tensilon reel, if the pushing blade is strong when raising the saddle, it may cause flaws in the coil, or the Tensilon reel and winding shaft may be damaged through the coil. or have a negative impact on.

このため、通常はシリンダーへの圧油供給管に、高圧と
低圧の2系統を持ち、サドル上昇時には低圧に、コイル
抜取時には高圧に切替えるようになっているが、パルプ
等の個数が多(、保全上点検や補修の個所が多くなり、
好ましくない。
For this reason, the pressure oil supply pipe to the cylinder usually has two systems, one high pressure and one low pressure, and the pressure is switched to low pressure when the saddle is raised and to high pressure when the coil is removed. For maintenance purposes, there are many places to inspect and repair,
Undesirable.

本発明は上記問題点を解決したコイルカーの昇降制御方
法を提供することを目的とする。
An object of the present invention is to provide a method for controlling the elevation and descent of a coil car, which solves the above-mentioned problems.

く問題点を解決するための手段〉 本発明は、流量調整弁を備えた油圧回路によって、金属
ストリップコイルを載置したサドルを昇降するリフトシ
リンダーを有する入側及び出側コイルカーにおいて、上
記油圧回路に圧力調整弁を設けて金属ストリップコイル
の重量に応じて油圧を設定することによって、入側コイ
ルカーにおいては金属ストリップコイルの重量にかかわ
らず上記流量調整弁の出側油圧を一定にして、上記サド
ルの上昇速度を一定に制御し、出側コイルカーにおいて
は金属ストリップコイルの重量にかかわらず上記流量調
整弁の前後の差圧を小にして、上記サドルの上昇速度を
低速に制御するものである。
Means for Solving Problems> The present invention provides an inlet and an outlet coil car having lift cylinders for raising and lowering a saddle on which a metal strip coil is mounted by a hydraulic circuit equipped with a flow rate regulating valve. By providing a pressure regulating valve in the saddle and setting the hydraulic pressure according to the weight of the metal strip coil, the outlet hydraulic pressure of the flow regulating valve is kept constant regardless of the weight of the metal strip coil in the entry side coil car, and the The rising speed of the saddle is controlled to be constant, and in the exit coil car, the differential pressure across the flow rate regulating valve is made small regardless of the weight of the metal strip coil, and the rising speed of the saddle is controlled to be low.

〈作   用〉 入側コイルカーにおいては、例えば第2図のように金属
ストリップコイルの重量Wに応じて圧力調整弁を制御す
ることによって金属ストリップの重量Wにかかわらず、
流量調整弁の出側油圧を一定にして、金属ストリップコ
イルを載置したサドルの上昇速度を一定に制御すること
ができる。
<Function> In the entrance coil car, for example, as shown in Fig. 2, by controlling the pressure regulating valve according to the weight W of the metal strip coil, the pressure can be adjusted regardless of the weight W of the metal strip.
By keeping the oil pressure on the outlet side of the flow rate regulating valve constant, the rising speed of the saddle on which the metal strip coil is mounted can be controlled to be constant.

また出側コイルにおいては、圧力調整弁を制御すること
によって、金属ストリップの重量Wにかかわらず、流量
調整弁の前後の差圧を小にして、金属ストリップコイル
を載置したサドルの上昇速度を遅速に制御することがで
きる。
In addition, by controlling the pressure regulating valve on the outlet side coil, the differential pressure before and after the flow regulating valve is made small regardless of the weight W of the metal strip, and the rising speed of the saddle on which the metal strip coil is placed is controlled. Can be controlled slowly.

〈実施例〉 第1図に本発明による方法を実施するに好適な圧油系統
図を示す、14は供給配管、15は戻り配管であり、そ
れぞれポンプPとタンクTに接続されている。また、1
6は方向切替弁で、これによりリフトシリンダー4の移
動方向(上昇と下降)が切替えられる。そして、この切
替弁16とシリンダー4の間には流量調整弁17.18
が設けられている。
<Example> FIG. 1 shows a pressure oil system diagram suitable for implementing the method according to the present invention. Reference numeral 14 represents a supply pipe, and 15 represents a return pipe, which are connected to a pump P and a tank T, respectively. Also, 1
Reference numeral 6 denotes a direction switching valve, which switches the moving direction (ascending and descending) of the lift cylinder 4. Between this switching valve 16 and the cylinder 4, there is a flow rate regulating valve 17.18.
is provided.

更に、供給配管14には、切替弁16と、ポン12間に
圧力調整弁として例えば電磁比例減圧弁19が設けられ
ており、この出側圧力P0を任意に制御することができ
る。尚、20.21は逆止弁である。
Further, the supply pipe 14 is provided with, for example, an electromagnetic proportional pressure reducing valve 19 as a pressure regulating valve between the switching valve 16 and the pump 12, so that the outlet pressure P0 can be arbitrarily controlled. In addition, 20.21 is a check valve.

このような圧油系統において、供給圧力(電磁比例減圧
弁19の出側圧力)Poを例えば第2図に示すようにコ
イル重量Wに応じて設定すれば、(1)式で算出される
差圧ΔPはコイル重量Wにかかわらず一定となり、従っ
てサドルの上昇速度も一定となるから、良い停止精度を
う得ることができる。
In such a pressure oil system, if the supply pressure (the outlet pressure of the electromagnetic proportional pressure reducing valve 19) Po is set according to the coil weight W as shown in FIG. Since the pressure ΔP is constant regardless of the coil weight W, and therefore the rising speed of the saddle is also constant, good stopping accuracy can be achieved.

以上、入側コイルカーについて説明したが、出側コイル
カーの場合には、圧力Pゆを変えて差圧ΔPを小とする
ことにより、サドルの上昇速度を遅くして、コイルへの
サドル接触時の衝撃を減少できる。
The above has explained the inlet side coil car, but in the case of the outlet coil car, by changing the pressure P and reducing the differential pressure ΔP, the rising speed of the saddle is slowed down, and when the saddle contacts the coil, Can reduce impact.

〈発明の効果〉 本発明によれば、入側コイルカーにおいては高さ調芯の
停止精度が向上し、ペイオフリールへのコイル挿入がス
ムーズに行なえるようになる。
<Effects of the Invention> According to the present invention, the accuracy of stopping height alignment in the entry side coil car is improved, and the coil can be smoothly inserted into the payoff reel.

また、出側コイルカーにおいてはコイルの押疵等の発生
を防止できる。
Furthermore, it is possible to prevent the occurrence of scratches and the like on the coils in the exit coil car.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の実施に使用する油圧回路の1実施例を
示す油圧回路図、第2図は本発明を実施する際のコイル
重量と減圧弁の出側圧力との関′係の1例を示すグラフ
、第3図は入側コイルカーの動作の説明図、第4図は出
側コイルカーの動作の説明図、第5図は従来の油圧回路
の説明図である。 1・・・コイルカー、   2・・・サドル、4・・・
リフトシリンダー、 7・・・ペイオフリール、 8・・・巻戻1k、9・・・テンシツンリーJし、10
・・・巻取軸、    14・・・供給配管、15・・
・戻り配管、   16・・・切替弁、17、18・・
・流量調整弁、19・・・圧力調整弁。 特許出願人    川崎製鉄株式会社 第1図 第2図 コイル重量W  (kg) 第4図 第5図
Fig. 1 is a hydraulic circuit diagram showing one embodiment of a hydraulic circuit used in carrying out the present invention, and Fig. 2 is a diagram showing an example of the relationship between the coil weight and the outlet pressure of the pressure reducing valve when carrying out the present invention. Graphs showing examples, FIG. 3 is an explanatory diagram of the operation of the inlet coil car, FIG. 4 is an explanatory diagram of the operation of the outlet coil car, and FIG. 5 is an explanatory diagram of a conventional hydraulic circuit. 1...Coil car, 2...Saddle, 4...
Lift cylinder, 7... Payoff reel, 8... Rewinding 1k, 9... Tensile reel, 10
... Winding shaft, 14... Supply piping, 15...
・Return piping, 16...Switching valve, 17, 18...
・Flow rate adjustment valve, 19...pressure adjustment valve. Patent applicant: Kawasaki Steel Corporation Figure 1 Figure 2 Coil weight W (kg) Figure 4 Figure 5

Claims (1)

【特許請求の範囲】[Claims] 流量調整弁を備えた油圧回路によって、金属ストリップ
コイルを載置したサドルを昇降するリフトシリンダーを
有する入側及び出側コイルカーにおいて、上記油圧回路
に圧力調整弁を設けて金属ストリップコイルの重量に応
じて油圧を設定することによって、入側コイルカーにお
いては金属ストリップコイルの重量にかかわらず上記流
量調整弁の出側油圧を一定にして、上記サドルの上昇速
度を一定に制御し、出側コイルカーにおいては金属スト
リップコイルの重量にかかわらず上記流量調整弁の前後
の差圧を小にして、上記サドルの上昇速度を低速に制御
することを特徴とするコイルカーの昇降制御方法。
In coil cars on the entry and exit sides that have lift cylinders that raise and lower saddles on which metal strip coils are placed using hydraulic circuits equipped with flow rate adjustment valves, pressure adjustment valves are provided in the hydraulic circuits to adjust the weight of the metal strip coils. By setting the oil pressure at the input side coil car, the output side oil pressure of the flow rate regulating valve is kept constant regardless of the weight of the metal strip coil in the inlet side coil car, and the rising speed of the saddle is controlled to be constant, and in the outlet side coil car. A method for controlling the elevation of a coil car, characterized in that the differential pressure before and after the flow rate regulating valve is reduced regardless of the weight of the metal strip coil, and the rising speed of the saddle is controlled to be low.
JP32671287A 1987-12-25 1987-12-25 Method for controlling ascending and descending of coil car Pending JPH01170520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32671287A JPH01170520A (en) 1987-12-25 1987-12-25 Method for controlling ascending and descending of coil car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32671287A JPH01170520A (en) 1987-12-25 1987-12-25 Method for controlling ascending and descending of coil car

Publications (1)

Publication Number Publication Date
JPH01170520A true JPH01170520A (en) 1989-07-05

Family

ID=18190834

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32671287A Pending JPH01170520A (en) 1987-12-25 1987-12-25 Method for controlling ascending and descending of coil car

Country Status (1)

Country Link
JP (1) JPH01170520A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102079456A (en) * 2010-12-22 2011-06-01 中色科技股份有限公司 Coil stripping method and system capable of automatically switching high pressure and low pressure
CN102962272A (en) * 2012-11-16 2013-03-13 江阴市洪腾机械有限公司 Pipeline control device for oil cylinder of hydraulic cold-drawing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102079456A (en) * 2010-12-22 2011-06-01 中色科技股份有限公司 Coil stripping method and system capable of automatically switching high pressure and low pressure
CN102962272A (en) * 2012-11-16 2013-03-13 江阴市洪腾机械有限公司 Pipeline control device for oil cylinder of hydraulic cold-drawing machine

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