JP2567482B2 - Method of adjusting oil amount of electrostatic oiling device - Google Patents
Method of adjusting oil amount of electrostatic oiling deviceInfo
- Publication number
- JP2567482B2 JP2567482B2 JP1325904A JP32590489A JP2567482B2 JP 2567482 B2 JP2567482 B2 JP 2567482B2 JP 1325904 A JP1325904 A JP 1325904A JP 32590489 A JP32590489 A JP 32590489A JP 2567482 B2 JP2567482 B2 JP 2567482B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- amount
- metal plate
- shaped metal
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 50
- 239000002184 metal Substances 0.000 claims description 50
- 239000011248 coating agent Substances 0.000 claims description 32
- 238000000576 coating method Methods 0.000 claims description 32
- 230000001133 acceleration Effects 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 19
- 239000003921 oil Substances 0.000 description 39
- 238000010586 diagram Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Electrostatic Spraying Apparatus (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、鋼板や、アルミニウム板、銅板等から成る
帯状金属板の表面に、防錆油や潤滑油等の塗油材を静電
塗油する静電塗油装置の塗油量調節方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention electrostatically coats the surface of a strip-shaped metal plate made of a steel plate, an aluminum plate, a copper plate or the like with an oil coating material such as rust-preventing oil or lubricating oil. The present invention relates to a method for adjusting the amount of oil applied to an electrostatic oiling device that oils.
この種の静電塗油装置は、静電塗油機から噴霧される
塗油材を、帯状金属板の表面に均一に静電塗油すること
が要求される。This type of electrostatic oiling device is required to uniformly apply the oil coating material sprayed from the electrostatic oiling machine to the surface of the strip-shaped metal plate.
このため、本出願人は、静電塗油機に塗油材を供給す
るポンプの回転数を帯状金属板の搬送速度に応じて可変
することにより、当該帯状金属板の塗油量が一定になる
ように調節していた（特公平１−27782号公報）。Therefore, the applicant has made the amount of oil applied to the strip-shaped metal plate constant by varying the number of revolutions of a pump that supplies the oil-coating material to the electrostatic oiling machine according to the transport speed of the strip-shaped metal plate. It was adjusted so that (Japanese Patent Publication No. 1-27822).
すなわち、第２図に示すように、帯状金属板１の搬送
速度を検出するタコジェネレータ２からのライン速度信
号と、帯状金属板１の単位面積当たりの塗油量を設定す
る塗油量設定信号とに基づいて帯状金属板１の搬送速度
に応じた塗油材供給量を求める制御装置３から、静電塗
油機４に塗油材を供給するポンプ５のモータ６に対し
て、ポンプ５の回転数を可変する制御信号CMを出力する
ことにより、静電塗油機４から噴霧する塗油材の量を帯
状金属板１の搬送速度に応じて増減させる塗油量調節手
段を講じていた。That is, as shown in FIG. 2, a line speed signal from the tachogenerator 2 that detects the transport speed of the strip-shaped metal plate 1 and a coating amount setting signal that sets the coating amount per unit area of the strip-shaped metal plate 1. From the control device 3 which determines the amount of oil-coating material supplied according to the transport speed of the strip-shaped metal plate 1 on the basis of the A control signal CM for varying the number of rotations of the oil is applied to provide an oil amount adjusting means for increasing / decreasing the amount of the oil material sprayed from the electrostatic oiling machine 4 according to the transport speed of the strip-shaped metal plate 1. It was
この手段によれば、帯状金属板１の搬送を開始してか
ら所定の搬送速度（通常、1000m/min）に達する迄の立
ち上げ時や、所定の搬送速度から搬送を停止する迄の立
ち下げ時においても、帯状金属板１の搬送速度に応じた
塗油量の調節が行われるので、製品歩止まりが良くなる
という期待があった。According to this means, the belt-shaped metal plate 1 is started up from the start up to a predetermined transfer speed (usually 1000 m / min), or is lowered from the predetermined transfer speed until the transfer is stopped. Even at this time, the amount of oil applied is adjusted according to the transport speed of the strip-shaped metal plate 1, so that it was expected that the product yield would be improved.
しかしながら、制御装置３が、所定の加速度で加速又
は減速される帯状金属板１の搬送速度を検出したライン
速度信号が入力された時から、その信号が所定比率の制
御信号CMに変換されてポンプ５のモータ６に供給され、
ポンプ５の回転数が可変されて静電塗油機４の塗油材噴
霧量が実際に変更される迄に、若干の時間的遅れがある
ため、帯状金属板１の搬送速度が加速される立ち上げ時
には、その単位面積当たりの塗油量が設定値よりも少な
すぎ、また、帯状金属板１の搬送速度が減速される立ち
下げ時には、逆に塗油量が多すぎるという問題を残して
いることが判明した。However, the control device 3 converts the signal into a control signal CM having a predetermined ratio from the time when the line speed signal that detects the transport speed of the strip-shaped metal plate 1 that is accelerated or decelerated at a predetermined acceleration is input, and then the pump is generated. Is supplied to the motor 6 of 5,
Since there is a slight time delay until the rotational speed of the pump 5 is changed and the amount of the oil-coating material sprayed by the electrostatic oil-coating machine 4 is actually changed, the transport speed of the strip-shaped metal plate 1 is accelerated. There is a problem that the amount of oil applied per unit area is too small at the time of start-up, and the amount of oil applied is too large at the time of start-up when the transport speed of the strip-shaped metal plate 1 is reduced. It turned out that
そこで本発明は、帯状金属板の搬送速度が一定の加速
度で加速される立ち上げ時や、その搬送速度が一定の加
速度で減速される立ち下げ時に、帯状金属板の速度変化
に即応して静電塗油機の塗油材噴霧量を遅れなく変更
し、帯状金属板の塗油量が多すぎたり、少なすぎたりす
る不具合を解消することを技術的課題としている。In view of this, the present invention provides a static response to the speed change of the strip-shaped metal plate at the time of start-up in which the transport speed of the strip-shaped metal plate is accelerated at a constant acceleration or at the time of fall when the transport speed is decelerated at a constant acceleration. The technical problem is to change the spray amount of the oil coating material of the electric oil coating machine without delay so as to solve the problem that the amount of oil coating on the strip-shaped metal plate is too large or too small.
この課題を解決するために、本発明は、帯状金属板の
搬送速度を検出したライン速度信号と、帯状金属板の単
位面積当たりの塗油量を設定した塗油量設定信号とに基
づいて、帯状金属板の搬送速度に応じた塗油材供給量を
求め、その供給量に応じて、静電塗油機に塗油材を供給
するポンプの回転数を可変制御する静電塗油装置の塗油
量調節方法において、帯状金属板の搬送速度が所定の加
速度で加速されることを示す加速信号によって、前記ポ
ンプの回転数を、前記ライン速度信号と塗油量設定信号
から求まる塗油材供給量を上回る供給量が得られる一定
の加速度で上昇させ、また、帯状金属板の搬送速度が所
定の加速度で減速されることを示す減速信号によって、
前記ポンプの回転数を、前記ライン速度信号と塗油量設
定信号から求まる塗油材供給量を下回る供給量が得られ
る一定の加速度で低下させることを特徴とする。In order to solve this problem, the present invention, based on a line speed signal that detects the transport speed of the strip-shaped metal plate, and an oil amount setting signal that sets the amount of oil applied per unit area of the strip-shaped metal plate, An electrostatic oiling device that variably controls the number of revolutions of a pump that supplies the oiling material to the electrostatic oiling machine according to the amount of oiling material supplied according to the transport speed of the strip-shaped metal plate In the method for adjusting the amount of applied oil, the applied speed of the pump is determined by an acceleration signal indicating that the transport speed of the strip-shaped metal plate is accelerated by a predetermined acceleration. The supply amount exceeding the supply amount is increased at a constant acceleration, and a deceleration signal indicating that the transport speed of the strip-shaped metal plate is decelerated at a predetermined acceleration,
The number of revolutions of the pump is reduced at a constant acceleration to obtain a supply amount that is less than the supply amount of the oil coating material obtained from the line speed signal and the oil coating amount setting signal.
本発明によれば、帯状金属板の搬送を開始してその搬
送速度が加速されている時は、静電塗油機に塗油材を供
給するポンプの回転数が、帯状金属板の搬送速度を検出
したライン速度信号と塗油量設定信号から求まる塗油材
供給量を上回る供給量が得られる一定の加速度で上昇す
るので、当該ポンプの回転数を可変してから静電塗油機
の塗油材噴霧量がその回転数に応じた量に変更される迄
の時間的遅れによって帯状金属板金属板の塗油量が少な
くなりすぎるという不具合は生じない。According to the present invention, when the transportation of the strip-shaped metal plate is started and the transportation speed thereof is accelerated, the rotation speed of the pump for supplying the oil coating material to the electrostatic oiling machine is the transportation speed of the strip-shaped metal plate. The oil supply amount exceeds the oil supply amount obtained from the line speed signal and the oil amount setting signal, which increases at a constant acceleration.Therefore, after changing the rotational speed of the pump, Due to the time delay until the amount of the oil coating material sprayed is changed to an amount corresponding to the number of revolutions, the problem that the amount of oil coating of the metal strip becomes too small does not occur.
また、帯状金属板の搬送速度が減速されている時に
は、ポンプの回転数が、ライン速度信号と塗油量設定信
号から求まる塗油材供給量を下回る供給量が得られる一
定の加速度で低下するので、前記の如き時間的遅れによ
って塗油量が多くなりすぎるという不具合も生じない。Further, when the transport speed of the strip-shaped metal plate is decelerated, the rotation speed of the pump decreases at a constant acceleration to obtain a supply amount that is less than the oil supply amount obtained from the line speed signal and the oil amount setting signal. Therefore, the problem that the amount of oil coating becomes too large due to the time delay as described above does not occur.
以下、本発明の実施例を図面に基づいて具体的に説明
する。Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
第１図は本発明方法の一例を示すフローシート図、第
２図は本発明方法を適用する静電塗油装置の概略構成図
である。FIG. 1 is a flow sheet diagram showing an example of the method of the present invention, and FIG. 2 is a schematic configuration diagram of an electrostatic oiling device to which the method of the present invention is applied.
本例では、帯状金属板１の搬送速度を検出したライン
速度信号と、帯状金属板１の単位面積当たりの塗油量を
設定した塗油量設定信号とに基づいて、帯状金属板１の
搬送速度に応じた塗油材供給量を求め、その供給量に応
じてポンプ５の回転数を可変する制御信号CMを出力する
ように成された制御装置３に、帯状金属板１の搬送速度
が所定の加速度で加速されることを示す加速信号と、そ
の搬送速度が所定の加速度で減速されることを示す減速
信号が入力されるようになっている。In this example, the conveyance of the strip-shaped metal plate 1 is performed based on the line speed signal that detects the conveyance speed of the strip-shaped metal plate 1 and the oil coating amount setting signal that sets the amount of coating oil per unit area of the strip-shaped metal plate 1. The feeding speed of the strip-shaped metal plate 1 is fed to the control device 3 which is configured to obtain the amount of the oil coating material supplied according to the speed and output the control signal CM that changes the rotation speed of the pump 5 according to the supplied amount. An acceleration signal indicating that the vehicle is accelerated at a predetermined acceleration and a deceleration signal that indicates that the conveyance speed is decelerated at a predetermined acceleration are input.
すなわち、制御装置３には、帯状金属板１の搬送速度
を検出するタコジェネレータ２からのライン速度信号
と、塗油量設定信号に加えて、帯状金属板１の加減速運
転を指令する制御装置（図示せず）から出力される加速
信号と減速信号が入力されるようになっている。That is, in addition to the line speed signal from the tachogenerator 2 that detects the transport speed of the strip-shaped metal plate 1 and the oil amount setting signal, the control device 3 commands the acceleration / deceleration operation of the strip-shaped metal plate 1. An acceleration signal and a deceleration signal output from (not shown) are input.
そして、この加速信号又は減速信号が入力された場合
に限り、制御装置３は、ライン速度信号を制御信号CMに
変換する比率を±10〜20％の割合で増減変更して、帯状
金属板１が加速されている時は、ライン速度信号と塗油
量設定信号から求まる塗油材供給量を上回る供給量が得
られる一定の加速度でポンプ５の回転数を上昇させ、ま
た、帯状金属板１が減速されている時は、ライン速度信
号と塗油量設定信号から求まる塗油材供給量を下回る供
給量が得られる一定の加速度でポンプ５の回転数を低下
させる。Then, only when this acceleration signal or deceleration signal is input, the control device 3 increases or decreases the ratio of converting the line speed signal to the control signal CM at a rate of ± 10 to 20%, and the strip metal plate 1 Is being accelerated, the rotational speed of the pump 5 is increased at a constant acceleration to obtain a supply amount that exceeds the supply amount of the oil coating material obtained from the line speed signal and the oil coating amount setting signal. Is being decelerated, the rotational speed of the pump 5 is reduced at a constant acceleration that provides a supply amount that is less than the supply amount of the oil coating material obtained from the line speed signal and the oil coating amount setting signal.
つまり、制御装置３が制御信号CMを出力した時から、
ポンプ５の回転数が可変されて静電塗油機４の塗油材噴
霧量が変更される迄の時間的遅れを考慮して、帯状金属
板１の搬送速度が所定の加速度で加速されている時は、
その搬送速度を検出したライン速度信号の乗数を「１」
から「1.1」〜「1.2」に切り替え、また、帯状金属板１
の搬送速度が所定の加速度で減速されている時は、その
搬送速度を検出したライン速度信号の乗数を「１」から
「0.9」〜「0.8」に切り替えて、ライン速度信号を制御
信号CMに変換する比率を変える。That is, from when the control device 3 outputs the control signal CM,
Considering the time delay until the rotation speed of the pump 5 is changed and the amount of the oil-coating material sprayed by the electrostatic oil-coating machine 4 is changed, the transport speed of the strip-shaped metal plate 1 is accelerated at a predetermined acceleration. When you are
The multiplier of the line speed signal that detected the transport speed is "1".
Switch from "1.1" to "1.2", and strip metal plate 1
When the carrier speed of the machine is decelerated by a predetermined acceleration, the multiplier of the line speed signal that detects the carrier speed is switched from "1" to "0.9" to "0.8", and the line speed signal is changed to the control signal CM. Change the conversion ratio.
これにより、帯状金属板１の搬送を開始して所定の搬
送速度に達する迄の間や、所定の速度で搬送される帯状
金属板１の減速を開始して停止する迄の間において、塗
油量が少なすぎたり、多すぎたりする不具合が解消され
る。As a result, the oil coating is performed until the belt-shaped metal plate 1 is conveyed and reaches a predetermined conveyance speed, or until the deceleration of the belt-shaped metal plate 1 conveyed at a predetermined speed is started and stopped. The problem that the amount is too small or too large is solved.
なお、上記説明では、帯状金属板１の加減速運転を指
令する制御装置から出力される加速信号又は減速信号に
よって、ポンプ５の回転数を加速又は減速するようにし
ているが、本発明はこれに限らず、帯状金属板１の搬送
速度を検出するタコジェネレータ２からのライン速度信
号によって、当該帯状金属板１の速度変化を検出し、そ
の速度変化から帯状金属板１が加速又は減速されている
か否かを判断して、ポンプ５の回転数を加速又は減速す
る場合であってもよい。In the above description, the rotation speed of the pump 5 is accelerated or decelerated by the acceleration signal or the deceleration signal output from the control device that commands the acceleration / deceleration operation of the strip-shaped metal plate 1. However, the present invention is not limited to this. However, the speed change of the belt-shaped metal plate 1 is detected by the line speed signal from the tacho generator 2 that detects the conveyance speed of the belt-shaped metal plate 1, and the belt-shaped metal plate 1 is accelerated or decelerated from the speed change. Alternatively, it may be determined whether or not the rotational speed of the pump 5 is accelerated or decelerated by determining whether or not there is.
以上のように、本発明方法によれば、帯状金属板の搬
送速度の変化を検出してから、静電塗油機の塗油材噴霧
量が変更される迄の応答時間に遅れがあっても、帯状金
属板が所定の加速度で加速される塗油開始時や、所定の
加速度で減速される塗油終了時に生ずる塗油ムラが防止
されて、帯状金属板の製品歩止まりが確実に良くなると
いう大変優れた効果がある。As described above, according to the method of the present invention, there is a delay in the response time from the detection of the change in the transport speed of the strip-shaped metal plate to the change in the amount of the oil coating material sprayed by the electrostatic oiling machine. In addition, uneven coating that occurs when the strip-shaped metal plate is accelerated by a predetermined acceleration and when it is decelerated by a predetermined acceleration is stopped, and the product yield of the strip-shaped metal plate is surely improved. It has a very excellent effect that
第１図は本発明方法の一例を示すフローシート図、第２
図は本発明方法を適用する静電塗油装置の概略構成図で
ある。 符号の説明 １……帯状金属板、３……制御装置 ４……静電塗油機、５……ポンプFIG. 1 is a flow sheet diagram showing an example of the method of the present invention, and FIG.
The figure is a schematic configuration diagram of an electrostatic oiling device to which the method of the present invention is applied. Explanation of reference numerals 1 ... Strip metal plate, 3 ... Control device 4 ... Electrostatic oiling machine, 5 ... Pump
Claims (1)
イン速度信号と、帯状金属板（１）の単位面積当たりの
塗油量を設定した塗油量設定信号とに基づいて、帯状金
属板（１）の搬送速度に応じた塗油材供給量を求め、そ
の供給量に応じて、静電塗油機（４）に塗油材を供給す
るポンプ（５）の回転数を可変制御する静電塗油装置の
塗油量調節方法において、帯状金属板（１）の搬送速度
が所定の加速度で加速されることを示す加速信号によっ
て、前記ポンプ（５）の回転数を、前記ライン速度信号
と塗油量設定信号から求まる塗油材供給量を上回る供給
量が得られる一定の加速度で上昇させ、また、帯状金属
板（１）の搬送速度が所定の加速度で減速されることを
示す減速信号によって、前記ポンプ（５）の回転数を、
前記ライン速度信号と塗油量設定信号から求まる塗油材
供給量を下回る供給量が得られる一定の加速度で低下さ
せることを特徴とする静電塗油装置の塗油量調節方法。1. A strip-shaped metal plate (1) is detected on the basis of a line speed signal which is detected, and a strip-shaped metal plate (1) which is set with an amount of oil applied per unit area of the strip-shaped metal plate (1). The amount of oil coating material supplied is determined according to the transport speed of the metal plate (1), and the rotational speed of the pump (5) that supplies the oil coating material to the electrostatic oiling machine (4) is varied according to the amount supplied. In the method for controlling the amount of oil coating of an electrostatic oiling device to be controlled, the rotation speed of the pump (5) is changed by an acceleration signal indicating that the conveyance speed of the belt-shaped metal plate (1) is accelerated by a predetermined acceleration. A supply rate that exceeds the oil supply rate obtained from the line speed signal and the oil amount setting signal is obtained. It is increased at a constant acceleration, and the conveyance speed of the strip-shaped metal plate (1) is decelerated at a predetermined acceleration. The speed of the pump (5) is changed by the deceleration signal indicating
A method for adjusting the amount of oil in an electrostatic oiling device, wherein the amount of oil supplied is less than the amount of oil supply obtained from the line speed signal and the amount of oil setting signal, and the amount of oil is reduced at a constant acceleration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1325904A JP2567482B2 (en) | 1989-12-18 | 1989-12-18 | Method of adjusting oil amount of electrostatic oiling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1325904A JP2567482B2 (en) | 1989-12-18 | 1989-12-18 | Method of adjusting oil amount of electrostatic oiling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03186382A JPH03186382A (en) | 1991-08-14 |
| JP2567482B2 true JP2567482B2 (en) | 1996-12-25 |
Family
ID=18181895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1325904A Expired - Fee Related JP2567482B2 (en) | 1989-12-18 | 1989-12-18 | Method of adjusting oil amount of electrostatic oiling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2567482B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2572817C (en) | 2004-07-16 | 2014-02-11 | Dofasco Inc. | Monitor system for coating apparatus |
| JP6097436B1 (en) * | 2016-05-19 | 2017-03-15 | Lui株式会社 | Oiling device and method |
-
1989
- 1989-12-18 JP JP1325904A patent/JP2567482B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03186382A (en) | 1991-08-14 |
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